31results about How to "Adjust the elastic size" patented technology

The invention discloses a general three-coordinate tool for measuring a side plate product. A guide rail, a strut and a cantilever are connected by threads to form a frame with an opened edge; a cantilever end is provided with a compacting and adjusting mechanism; and the guide rail is provided with a support limiting mechanism. The compacting and adjusting mechanism ensures that the product does not deform during clamping, and the reliability and the repeatability for detecting data can be ensured; the support limiting mechanism has a favorable positioning function and is convenient to operate; corresponding brackets are replaced for different types of products; the products with the same type can be programmed for one time and can be recycled. The tool is suitable for batch detection, and the detection efficiency is improved. The general tool is not only suitable for the detection of the side plate products, but also suitable for the detection of part non-side plate products, such as gear rings and shaft sleeves.

The invention discloses a slicing device suitable for leatherleaf mahonia. The slicing device comprises a slicing box, wherein a pushing-pressing channel which is in communication in the horizontal direction is arranged on the center of a front panel of the slicing box and the center of a rear panel of the slicing box; left and right sides of the pushing-pressing channel are equipped with inclinedpressing conveyor belts; the inclined pressing conveyor belts are mounted on the inner side wall of a mounting slide plate; the mounting slide plate is blocked between two supporting slide tables ina sliding mode; an elastic pressing device is arranged between the outer side wall of the mounting slide plate and the inner side wall of the slicing box; the supporting slide tables are fixedly arranged on left and right inner side walls of the slicing box; the slicing box is fixedly mounted at the periphery of the rear-end opening of the pushing-pressing channel; and a cutting device is arrangedin the slicing box. The inclined pressing conveyor belts of the slicing device can continuously increase clamping force to the sides of the raw materials while conveying the raw materials, so that the raw materials can keep a relatively stable state to perform slicing action, and therefore, the conditions that a cutting surface is uneven, raw materials shake in a cutting process, the cutting thickness is uneven, and a cutter disc is possibly damaged are avoided.

The invention discloses a jointing clamp convenient for connecting electrical equipment. The jointing clamp comprise a left half wire clamping body and a right half wire clamping body, wherein the middle upper parts of the left half wire clamping body and the right half wire clamping body are connected through a fixing pin, a handle of each of the half wire clamping body and the right half wire clamping body is provided with an insulating sleeve, a first sliding groove is formed in the inner side of each handle, a sliding block is arranged inside each of the two first sliding grooves, the two sliding blocks are connected through a reset spring, a second sliding groove is formed in the front surface of the handle of each of the half wire clamping body and the right half wire clamping body, the side surface of each sliding block is connected with a bolt, the top part of each bolt is inserted in the corresponding second sliding groove and extends to the outer side of the corresponding insulating sleeve, the top end of each bolt is provided with a knob, and first snap-in teeth are formed at the clamping position of the top part of the left half wire clamping body. The jointing clamp convenient for connecting electrical equipment is simple in structure, is convenient to use by the staff, can adjust the clamping force of the jointing clamp, achieves the effect of power detection, and can prolong the service life of the jointing clamp.

The invention relates to a shoulder rest, more specifically an adjustable shoulder for a seat, which comprises a fixture assembly, an adjustable shoulder assembly and an elastic assembly, wherein thedistance between the two shoulders and the angle between the two shoulders in the device can be adjusted so as to be suitable for people of different body shapes, and when the shoulder of the human body is leaned on, the shoulder gives people reverse elastic force so as to make the human body more comfortable, and the elastic force given by the shoulder can be adjusted.-The fixing frame assembly comprises a cross bar, a T-shaped convex strip, a wheel axle, a runner and an intermediate vertical plate, wherein the upper end of the cross bar is fixedly connected with the intermediate vertical plate at the middle position, the front end of the intermediate vertical plate is provided with a T-shaped convex strip, the upper end surface of the intermediate vertical plate is rotatably connected with two runners through the wheel axle, and the two runners are symmetrically distributed on the upper end of the intermediate vertical plate.

The invention discloses an inward-opening door type adjustable anti-theft lock bolt. The inward-opening door type adjustable anti-theft lock bolt comprises a casing (1), a screw (2), a handle (3), a moving stopping plate (5), a compression spring (6), a stopping block (7), a shaft (8) and a bolt head (9), wherein the moving stopping plate (5) is connected with two adjusting screws (4) through fine threads, the left end face of the compression spring (6) contacts with the right end face of the moving stopping plate (5), and the shaft (8) is in clearance fit with the moving stopping plate (5). The bolt is simple in structure, easy to assemble, adjustable in spring elasticity, reliable in working, easy to unlock and long in service life.

The invention provides a tension adjustment device for textile fiber winding, and relates to the textile field. The tension adjustment device for textile fiber winding comprises an adjustment device body, a pull ring, an elastic component and a limit mechanism, wherein the interior of the adjustment device body is hollow, and a liftable lifting mechanism is slidably installed in the adjustment device body; and an output end of the lifting mechanism penetrates out of the adjustment device body and is fixed to the pull ring. According to the tension adjustment device for textile fiber winding, the lifting mechanism and the limit mechanism are cooperated, the elastic component is arranged between the lifting mechanism and the limit mechanism, and the length of a spring is changed by changingthe height of a baffle; in the case of invariable elastic coefficient of the spring, the effect of adjusting the elasticity of the spring can be achieved by changing the length of the spring; adjustment can be carried out according to textile fibers made from different materials, the tension of the spring is enabled to be in a tolerance range of the textile fibers, so that the textile fibers can be closely wound on a winding wheel, and the breakage of the textile fibers can further be avoided.

The invention discloses a dishwasher with an electromagnetically-attracted upper cover and an upper cover opening and closing control method. The dishwasher comprises a dishwasher body and the upper cover, one side of the upper cover is fixed on the dishwasher body, and the upper cover can rotate to open and close the dishwasher and is provided with a permanent magnet; the portion, corresponding to the permanent magnet, of the dishwasher body is provided with an electromagnet, the dishwasher is further internally provided with an elastic mechanism connected with the upper cover and used for controlling the static angle of the upper cover, and the elastic mechanism comprises an elastic part, an elastic adjusting part for adjusting the elasticity of the elastic part, a hinge structure connecting the upper cover and the dishwasher body, a connecting part connecting the hinge structure and the elastic part and a rotating part supporting the connecting part. With the electromagnet as a locking mechanism, the dishwasher is simple in structure, convenient to operate and low in failure rate.

The invention discloses an elasticity adjusting mechanism for a fitness gravity frame and the fitness gravity frame, which relate to the technical field of fitness equipment, and solves the technicalproblem that the elasticity of an elastic rope needs to be adjusted in the prior art. The elastic force adjusting mechanism comprises a wire wheel assembly, an adjusting assembly and a gear assembly;wherein the wire wheel assembly is used for winding an elastic rope; the wire wheel assembly comprises a first wire wheel and a second wire wheel; the adjusting assembly is used for adjusting the position of the gear assembly, the first wire wheel is connected with the adjusting assembly and / or the gear assembly, the position of the gear assembly is adjusted through the adjusting assembly to drivethe first wire wheel to move, and therefore the elasticity of the elastic rope is adjusted by adjusting the distance between the first wire wheel and the second wire wheel. According to the elastic force adjusting mechanism, the elastic force of the elastic rope is adjusted by adjusting the distance between the first wire wheel and the second wire wheel, the structure is simple, the elastic forceis convenient to adjust, and the requirements of users for different elastic forces can be met.

The invention discloses arm exercising equipment for physical fitness. The arm exercising equipment comprises a bottom plate, two corresponding connecting blocks are fixedly connected to one side of the upper surface of the bottom plate, a lying plate is hinged between the adjacent side walls of the two connecting blocks, corresponding fixing columns are fixedly connected to the two sides of the upper surface of the bottom plate, the two fixing columns are located on the two sides of the lying plate respectively, the two fixing columns are in threaded connection with limiting rings and connecting rings, the connecting ring is positioned above the limiting ring, the two fixing columns are sleeved with connecting cylinders in a sliding mode, the connecting cylinders are located between the limiting rings and the connecting rings, the two fixing columns are sleeved with first springs, the two ends of each first spring are fixedly connected with the corresponding connecting ring and the corresponding connecting cylinder respectively, the bottoms of the two connecting cylinders are fixedly connected with a plurality of first hooks, and the upper surfaces of the limiting rings are fixedly connected with second hooks. Arms are exercised by arranging the sleeve, the connecting cylinder, the first spring and the second spring, so that safety and reliability are achieved, and no damage is caused to the human body.

The invention discloses a modeling supporting device for landscaping design. The modeling supporting device comprises a bottom plate, a through opening and a heat preservation cloth roller, wherein the through opening is formed in the middle of the bottom plate, the heat preservation cloth roller is arranged at the upper end of the bottom plate and corresponds to the through opening, fixing platesare arranged on the left side and the right side of the upper end of the bottom plate, a first fixing frame is arranged on the upper side of the through opening, a second fixing frame is arranged onthe first fixing frame, connecting rods are hinged to the upper ends of the fixing plates, the upper ends of the connecting rods are hinged to the first fixing frame, fixing bolts are arranged betweenthe first fixing frame and the second fixing frame, and clamping plates are arranged on the left side and the right side in the first fixing frame and the second fixing frame. When the modeling supporting device is used, the bottom plate is inserted and fixed to the ground through ground inserting pins, a sapling penetrates through the through opening, the arranged first fixing frame facilitatesshaping supporting of trunks, and when the sapling grows to be large, the arranged second fixing frame facilitates modeling supporting of trunks on the upper side, so that the effect of modeling supporting of different positions of the sapling is achieved, and the modeling effect is good.

The invention discloses an unwinding device for insulating paper, which comprises a support, a paper roller, two support seats, a driving roller, a driven roller, a driving motor and a driving chain. The advantage of the unwinding device for insulating paper of the present invention is that it has a driven roller connected with a movable block, and the movable block is connected with a spring, which can effectively prevent the insulating paper from being damaged while ensuring a certain tension of the insulating paper. Torn off; also with studs, by adjusting the length of the studs, the elastic force of the spring can be adjusted more conveniently, so that it can adapt to various specifications of insulating paper.

The invention relates to a scribing device of a chip dividing machine and an adjusting method thereof, the scribing device comprises a machine table, a stand column is arranged on the table top of the machine table, a scribing knife mechanism for scribing a bar is arranged in front of the stand column, and the scribing knife mechanism is controlled by a lifting driving mechanism on the front side of the stand column to ascend and descend; the cutter mechanism comprises a cutter holder and a swing arm on the lower side of the cutter holder, the rear portion of the swing arm is rotatably connected to the cutter holder, the front end of the swing arm extends out of the front side of the cutter holder and is connected with a shaft, and a cutter head penetrates through the middle of the shaft in the radial direction. A balancing weight is connected to the rear end of the swing arm, an elastic piece is arranged in the middle of the swing arm, the rear end of the elastic piece is connected to the swing arm, the front end of the elastic piece is suspended, and an adjusting bolt with the lower end abutting against the front end of the elastic piece is connected to the upper side of the tool apron. The scribing device of the chip splitting machine is reasonable in design, convenient to use and high in practicability, the pressure of the tool bit on the bar is controlled through the elastic piece, the scribing strength is convenient to control, the scribing strength can be controlled within 1 g, the control precision is high, meanwhile, the elastic force can be adjusted by rotating the adjusting bolt, and the force control function of the tool bit is achieved.

The invention discloses a vehicle-mounted online detection platform for an organic pollutant. The vehicle-mounted online detection platform comprises a compartment and a detection platform main body arranged in the compartment; the compartment is provided with a chamber; the detection platform main body is located in the chamber; the four corners at the bottom of the detection platform main body are fixedly provided with supporting rods; the outer sides of the supporting rods are movably sleeved with locating columns; sliding chutes are formed in the tops of the locating columns; grooves are formed in the bottom inner walls of the sliding chutes; the bottom ends of the supporting rods extend into the corresponding grooves and are fixedly provided with rubber balls; the outer sides of the rubber balls are movably connected with the corresponding grooves in a sealing way; and the outer sides of the supporting rods are movably sleeved with limiting rings. The vehicle-mounted online detection platform is reasonable in design and simple in structure; the positions of the limiting rings are convenient to regulate, so that the elasticity of a first spring and a second spring can be regulated; and the first spring and the second spring can effectively consume the vibration energy of the supporting rods and achieve a buffering protection effect for the detection platform main body, so that the detection platform main body is prevented from being damaged.

The invention discloses a general three-coordinate tool for measuring a side plate product. A guide rail, a strut and a cantilever are connected by threads to form a frame with an opened edge; a cantilever end is provided with a compacting and adjusting mechanism; and the guide rail is provided with a support limiting mechanism. The compacting and adjusting mechanism ensures that the product does not deform during clamping, and the reliability and the repeatability for detecting data can be ensured; the support limiting mechanism has a favorable positioning function and is convenient to operate; corresponding brackets are replaced for different types of products; the products with the same type can be programmed for one time and can be recycled. The tool is suitable for batch detection, and the detection efficiency is improved. The general tool is not only suitable for the detection of the side plate products, but also suitable for the detection of part non-side plate products, such as gear rings and shaft sleeves.

The invention discloses a pressure limiting valve capable of adjusting pressure. The valve comprises a shell, a seal part, a piston, a piston fixed part, an adjusting part and a spring; the shell is provided with a water inlet end and a water outlet end, the seal part is fixed into the shell and is provided with a seal hole, the piston comprises a sliding part, a penetrating part, and a seal partwhich are integrally formed, the penetrating part is arranged on the seal hole in a sliding penetrating manner, when the seal part moves to the limit in a manner of facing water inlet end, the seal hole is closed, the side wall of the piston fixed part is fixed to the inner side wall of the shell, a water inlet hole is formed in the radial end face, a penetrating piston cavity is formed in the axial direction, a limiting protrusion is arranged in the piston cavity, the sliding part is in sealed sliding connection into the piston cavity, one end of the adjusting part is in sealed connection with the piston fixed part, the adjusting part moves back and forth in the direction from the water inlet end to the water outlet end, and the length of the movable cavity in the direction from the waterinlet end to the water outlet end can be adjusted. The spring is contained in the movable cavity. The beneficial effect of adjusting the output pressure of the pressure limiting vale is achieved.

The invention discloses a mattress with adjustable hardness, and belongs to the field of mattresses. The device comprises a soft cushion and a bottom plate and further comprises a plurality of adjusting springs, the upper ends of the adjusting springs are connected to the lower side face of the soft cushion, and the lower ends of the adjusting springs are connected to the upper end face of the bottom plate; and the adjusting devices correspond to the adjusting springs one to one, and the adjusting devices are used for adjusting the effective working lengths of the adjusting springs so as to adjust the supporting force borne by the soft cushion. According to the hardness-adjustable mattress provided by the invention, the effective working length of the adjusting spring is adjusted through the adjusting device, and the elastic force is adjusted through the change of the effective working length of the adjusting spring, so that the hardness of the mattress is adjusted, and due to the fact that the effective working length of the adjusting spring is steplessly changed, the hardness of the mattress is adjusted. Therefore, the hardness can be steplessly adjusted, the adjusting precision is high, and the adjusting range is wide.

The invention relates to an air compressor with a shock-absorbing function, comprising a cylinder body, the two ends of the cylinder body are respectively fixedly connected with sealing heads, the upper part of the cylinder body is fixedly connected with a motor seat plate, and the motor seat plate A transverse through-hole area and a longitudinal through-hole area are respectively arranged on the top, the transverse through-hole area includes a plurality of transverse through-holes arranged at intervals, and the longitudinal through-hole area includes a plurality of longitudinal through-holes arranged at intervals; The bottom is fixedly connected with a shock absorber. The present invention realizes shock absorption through a two-stage shock absorption structure, and can also adjust the shock absorption effect; can realize the height adjustment of the main body of the air compressor; and can realize the movement on the ground through the roller body.

The invention provides a tension adjustment device for textile fiber winding, and relates to the textile field. The tension adjustment device for textile fiber winding comprises an adjustment device body, a pull ring, an elastic component and a limit mechanism, wherein the interior of the adjustment device body is hollow, and a liftable lifting mechanism is slidably installed in the adjustment device body; and an output end of the lifting mechanism penetrates out of the adjustment device body and is fixed to the pull ring. According to the tension adjustment device for textile fiber winding, the lifting mechanism and the limit mechanism are cooperated, the elastic component is arranged between the lifting mechanism and the limit mechanism, and the length of a spring is changed by changingthe height of a baffle; in the case of invariable elastic coefficient of the spring, the effect of adjusting the elasticity of the spring can be achieved by changing the length of the spring; adjustment can be carried out according to textile fibers made from different materials, the tension of the spring is enabled to be in a tolerance range of the textile fibers, so that the textile fibers can be closely wound on a winding wheel, and the breakage of the textile fibers can further be avoided.

The invention relates to the technical field of environmental protection and purification, in particular to an industrial kiln waste gas treatment device with an efficient purification function, the industrial kiln waste gas treatment device comprises a waste gas treatment device body, the waste gas treatment device body comprises a base, and a waste gas storage box is fixedly installed at the topend of the base; and a first anti-blocking mechanism is inserted into the waste gas storage box. A first threaded column is arranged, through a round block fixedly installed at the bottom of the first threaded column, the first threaded column rotates in the waste gas storage box more stably, a second sliding sleeve rotates on the outer side of a second threaded column by a proper number of turns, and therefore the purpose of adjusting the elasticity of a first spring is achieved; a first scraping piece is enabled to be attached to the inner wall of the waste gas storage box more tightly, anda motor drives the first threaded column to rotate forwards and backwards by rotating an output shaft, so that the first threaded column and a first sliding sleeve drive the first scraping piece to ascend and descend when rotating in a thread engagement manner, and the purpose of cleaning impurities adsorbed to the inner wall of the waste gas storage box is achieved.

The invention discloses a lifting ring for sports competitions, which relates to the technical field of lifting rings for sports competitions. Two round sleeves are set on the crossbar, the round sleeve can move along the crossbar, a groove is set on one side of the top surface of the round sleeve, the groove is communicated with the inside of the round sleeve, one side of the groove is communicated with the outside world, and the groove is provided with a groove. The handle, the lower end of the handle can be in contact with the cross bar, the front surface of the handle and the inner wall of the round sleeve are provided with screw holes, and a fixing bolt is passed through the three screw holes. The invention has reasonable structural design and convenient use, can rotate the adjusting member to adjust the elastic force of the spring, so as to cooperate with the user's weight to perform shock absorption, has good shock absorption effect, and can adjust the time distance between the two suspension rings and the bottom surface. The distance between them can be used by people of different ages and has a wide range of applications.

The invention relates to the technical field of rubber frozen trimming, and discloses rubber manufacturing equipment based on a frozen trimming method. The rubber manufacturing equipment comprises a shell, wherein a lead screw is movably connected to the interior of the shell, a rotating shaft is movably connected to the surface of the lead screw, a placing ring is movably connected to the surfaceof the rotating shaft, a spring rod is movably connected to the back of the rotating shaft, a buffer bag is movably connected to the surface of the spring rod, a screw is movably connected to one end, which is away from the buffer bag, of the spring rod, a meshing wheel is movably connected to one end, which is away from the spring rod, of the screw, a push rod is movably connected to the surfaceof the meshing wheel, an air plate is movably connected to one end, which is away from the meshing wheel, of the push rod, a pill ring is movably connected to the air plate, and a push plate is movably connected to the interior of the pill ring. When the speed of pills which make contact with rubber products is low, grooves are formed together with the symmetrical rubber products, so that the pills which do not circulate to flow into a feed pipe are conveniently collected, and the effects of accurately guiding trimming and reducing the waste of the pills are achieved.

The invention discloses an electromagnetic trip mechanism for a low-voltage circuit breaker. The electromagnetic trip mechanism comprises a bracket, an armature which is rotationally arranged on the bracket, a magnet yoke arranged between the bracket and the armature, a reset spring for providing resetting elastic force for the armature, and a pin shaft arranged on the bracket, wherein the bracket comprises two side walls and a connecting wall for connecting the two side walls; pivoting grooves are formed on the side walls; the armature comprises an actuating plate, two pivoting bosses which protrude out of the edges of the left and right sides of the actuating plate, and a reset rod positioned on the top of the actuating plate; each pivoting boss of the armature is positioned on a corresponding pivoting groove on the side wall of the bracket; the reset spring is a torsional spring sleeved on the pin shaft; and one end of the torsional spring is hooked on the armature, and the other end of the torsional spring and the bracket are fixedly arranged in an opposite way. The electromagnetic trip mechanism has the advantages of being compact in structure and relatively stable and relatively reliable in trip performance.

The invention discloses an adjustable orthopedic instrument for scar contracture of a neck. The adjustable orthopedic instrument comprises a front piece and a rear piece which are matched with each other, wherein the front piece comprises an upper supporting piece, a lower supporting piece and a soft connecting piece, wherein the upper supporting piece is used for being supported against the head; the lower supporting piece is used for being supported against the shoulder; the soft connecting piece is used for connecting the upper supporting piece and the lower supporting piece; elastic mechanisms for applying supporting force are uniformly distributed between the upper supporting piece and the lower supporting piece. The front piece is arranged to be three parts, i.e., the upper supporting piece supported against the head, the lower supporting piece supported against the shoulder and the soft connecting piece for connecting the upper supporting piece and the lower supporting piece. After the orthopedic instrument is worn on the neck of a patient, by using the soft characteristic of the soft connecting piece and elasticity applied by the elastic mechanisms, on one hand, the upper supporting piece and the lower supporting piece can be attached to the head and the shoulder respectively, and on the other hand, the supporting force can be provided to prevent worsening of the scar contracture or cervical deformity; the patient can also utilize the orthopedic instrument to do proper neck exercise and functional training.

The invention discloses an abduction bag based on arthroscopic repair of rotator cuff damage, which includes a wearable vest, a support part, a shoulder belt and a waist belt. The support part has a cavity inside and has a step structure, which includes a second step surface , air holes are also provided on the supporting part, and an elbow joint exercise device is provided on the second step surface, and the elbow joint exercise device includes a lower pressing block, a first elastic member, a second telescopic member, an adjustment assembly and an airbag ball, and the first elastic member and the second telescopic part are located in the cavity of the support part, the lower pressing block is inserted into the cavity of the support part and connected with the first elastic part, and the airbag ball is connected with the second telescopic part through the trachea to adjust the elastic force of the first elastic part , the regulating component is connected with the output end of the trachea, and the regulating component can pass the gas in the trachea into the cavity of the supporting part. The present invention can meet the intensity required for exercise in different recovery stages of the patient, and at the same time can improve the air permeability of the support part during the exercise and improve the comfort of the patient during use.

The invention discloses an abducting bag applied after rotator cuff injury repair operation based on an arthroscope. The abducting bag comprises a wearable vest, a supporting part, shoulder strap and a waist strap, a cavity is formed in the supporting part, the supporting part is of a step structure and comprises a second step surface, air holes are further formed in the supporting part, an elbow joint exercise device is arranged on the second step surface, the elbow joint exercise device comprises a pressing block, a first elastic piece, a second telescopic piece, an adjusting assembly and an air bag ball, the first elastic piece and the second telescopic piece are both located in the cavity of the supporting part, the pressing block is inserted into the cavity of the supporting part and connected to the first elastic piece, the air bag ball is connected to the second telescopic piece through an air pipe, the elastic force of the first elastic piece is adjusted, the adjusting assembly is connected to the output end of the air pipe, and air in the air pipe can be introduced into the cavity of the supporting part through the adjusting assembly. The abducting bag can meet strength needed by exercise of a patient in different recovery stages, meanwhile, the air permeability of the supporting part can be improved in the exercise process, and the comfort level of the patient during use is improved.

The invention discloses an adjustable clutch motor with protection, which relates to the technical field of motor equipment and comprises a motor shell and a motor shaft, wherein a stator assembly is arranged in the motor shell, a rotor assembly is arranged in the center of the stator assembly, the motor shaft comprises a driving section, a first holding section and a second holding section, a rotor base sleeve is arranged on the first holding section, a first friction surface is formed at the left end of the rotor base sleeve, a first friction disc is circumferentially fixed on the driving section, a second friction surface is formed at the right end of the first friction disc, a first elastic structure is arranged at the left end of the first friction disc, a first supporting assembly is arranged at the left end of the first elastic structure, a second supporting assembly is arranged at the right end of the rotor base sleeve, and an adjusting assembly is arranged at the left end of the motor shaft; and a sensing module is further arranged in the motor shell and electrically connected with a control module. The adjustable clutch motor has the advantages of high safety, long service life and good use experience.

The invention provides a ship communication receiver convenient to disassemble and assemble, which comprises a receiving antenna, a bottom connecting plate, a connecting and fixing column, a bottom supporting plate, a polygonal clamping frame structure, a quick moving frame structure, a bottom lifting frame structure, a signal processor, a communication wire, a U-shaped groove clamping seat, a touch screen, an elastic fixing frame structure and a clamping plate, and the bottom connecting plate is in bolted connection with the lower part of the receiving antenna; the connecting and fixing column is integrally arranged in the middle of the lower portion of the bottom connecting plate; and the bottom supporting plate is integrally arranged on the lower portion of the connecting and fixing column. The receiver has the beneficial effects that through the arrangement of the arc-shaped connecting groove, the dovetail-shaped sliding block, the clamping contact block and the arc-shaped long sliding groove, it can be guaranteed that the upper portion and the lower portion of the right side of the clamping contact block are tightly attached to the outer side of the connecting and fixing column, and therefore the connecting and fixing columns of different sizes or different shapes are fixed.

The present invention relates to a shoulder rest, and in particular to an adjustable shoulder rest. The adjustable shoulder rest comprises a fixing bracket assembly, an adjustable shoulder rest assembly and an elastic assembly. According to the adjustable shoulder rest, a distance between two shoulder rests and the angles of the two shoulder rests can be adjusted to suit people of different sizesin using the adjustable shoulder rest; when the shoulders of a human body lean against the adjustable shoulder rest, the two shoulder rests will be separated from each other, so that the two shoulderrests can better wrap the shoulders of the human body; the magnitude of elastic forces applied by the shoulder rests can be adjusted; the middle of the upper end of a crossbar is fixedly connected with a vertical support plate; the upper end surface of the vertical support plate is rotatably connected with two rotating wheels; the lower end of a slider sliding bar is fixedly connected with the lower end of the front end surface of the vertical support plate; a slider is slidably connected onto the slider sliding bar; the left end and right end of the slider are hinged to supporting rods; the lower end of the crossbar is connected with a lower n-shaped rod through screws; and the front end of the lower n-shaped rod is fixedly connected with an L-shaped connecting frame; the upper end of theL-shaped connecting frame is fixedly connected with a horizontal limiting plate; and the other ends of the supporting rods are both arranged on the upper end of the horizontal limiting plate.

The invention discloses a medical oral teeth-grinding correcting device. The medical oral teeth-grinding correcting device comprises an upper outer wall and a lower outer wall, wherein a first spring device is arranged at the inner side of each of the upper outer wall and the lower outer wall, baffles are symmetrically arranged at the left and right sides of the first spring device, water tanks are arranged at the outer sides of the baffles, an outlet is formed in the outer-side surface of each water tank, a fixing block is arranged at the lower side of the upper outer wall, a fastening screw is arranged at the right side of the lower end of the fixing block, a second spring device is arranged at the inner side of the fixing block, a push plate is arranged at the lower side of the second spring device, a push rod is arranged between the push plate and the lower outer wall, the upper outer wall and the lower outer wall are arranged to be in the shapes of Chinese character 'Ao', and due to the design, the comfort level of the oral cavity is favorably increased. According to the medical oral teeth-grinding correcting device, the upper outer wall and the lower outer wall are arranged, therefore, the teeth grinding of people at night is well prevented, the teeth grinding is effectively corrected, further, the sufficient sleep is guaranteed, and the work quality is finally improved.