37results about How to "Good limit function" patented technology

The invention discloses a mounting device of a street lamp. The mounting device is characterized by comprising a base, a supporting piece I, a supporting piece II, a driving device I and a driving device II, wherein the base is in a concave shape, one end of the supporting piece I is hinged to the base, the other end of the supporting piece I is hinged to one end of the supporting piece II, one end of the driving device I is hinged to the base, the other end of the driving device I is hinged to the supporting piece I, the driving device I can drive the supporting piece I to rotate, and the twoends of the driving device II are hinged to the supporting piece I and the supporting piece II. The invention further discloses a mounting method of the street lamp. According to the mounting deviceand the mounting method, the street lamp can be mounted, the safety of the mounting process is higher, accidents can be effectively avoided, and the safety of workers is guaranteed.

The invention provides a valve seat support rapid assembling tool which comprises a wrench assembly and a driving assembly, the driving assembly is used for installing a valve seat support on a valve body, the wrench assembly enables the driving assembly to rotate through a vertical rod part, the rod part of the wrench assembly is further sleeved with a positioning disc, and the positioning disc makes contact with a valve body channel in the valve body. A driving head at the front end of the wrench assembly acts on the driving assembly, and the driving assembly drives the valve seat support to rotate, so that the valve seat support is connected into the valve body in a threaded mode. According to the quick assembling tool for the valve seat support, the magnetic steel block on the inner wrench is attracted to the sliding clamping block arranged in the bottom plate made of the ceramic material, it is ensured that the wrench assembly is connected with the driving assembly, and the valve seat support is driven by the driving key to be tightly connected to the valve body in a threaded mode.

The invention discloses a stable wire conveying mechanism which comprises a wire storage barrel, four guide wheels, a counterweight constant-tension device, an electrode wire and four limiting cams. The electrode wire penetrates a small center hole of a workpiece which is clamped on a working tabletop, the four guide wheels includes a first upper guide wheel, a second upper guide wheel, a third upper guide wheel and a fourth lower guide wheel, the first upper guide wheel, the second upper guide wheel and the third upper guide wheel are positioned at the upper end of the workpiece, the fourth lower guide wheel is positioned at the lower end of the workpiece, the counterweight constant-tension device is positioned between the first upper guide wheel and the second upper guide wheel, two limiting cams are arranged on the lower portion of the third upper guide wheel, the other two limiting cams are arranged on the upper portion of the fourth lower guide wheel, and the electrode wire can be driven by the wire storage barrel to reciprocate through the four guide wheels. Owing to the mode, the stable wire conveying mechanism has the advantages that the stable wire conveying mechanism has an excellent electrode wire limiting function, constant tension can be applied to the electrode wire, accordingly, shaking of the electrode wire can be suppressed, and the workpiece machining precision and the smoothness of the workpiece can be improved.

The invention discloses a bottle and can rack, which comprises a main rack body, at least one limiting frame and at least one screw locking component, wherein the main rack body comprises a mounting part and a supporting part; at least one longitudinal through slot is formed in the mounting part; the at least one limiting frame is selectively located on the mounting part; the limiting frame comprises a sliding part which is attached to and abuts against the mounting part, and at least one through hole is formed in the sliding part; a first bracket is arranged at the top edge of the sliding part in a stretching mode; at least one first inserting hole, in which bottles and cans are inserted, is formed in the first bracket; as the bodies of the bottles and cans run through the bracket, the bottoms of the bottles and cans are placed on the supporting part; the at least one screw locking component sequentially runs through the at least one through slot and the at least one through hole; and the sliding part of the limiting frame, on the basis of a clamping effect of the at least one screw locking component, is located on the mounting part of the main rack body.

The invention provides a runner assembly and an engine suspension comprising the runner assembly. The runner assembly comprises a runner plate and a leather cup, wherein the runner plate is connected with the leather cup, a first runner and a third runner are arranged on the runner plate, and a second runner is formed between the runner plate and the leather cup. The engine suspension comprising the runner assembly also comprises a support arm, a connecting part and an outer support frame, wherein the support arm is connected with an engine, the support arm is connected with the outer support frame through the connecting part, the runner assembly is arranged in the outer support frame, and the runner assembly is connected with the connecting part. Through the design of three runners, the vibration isolation and position limiting functions are optimized, and a hybrid electric vehicle can simultaneously meet damping and rigidity requirements when working under different work conditions.

The invention discloses a full-lining bidirectional composite soft sealing butterfly valve, which belongs to a butterfly valve for a pipeline of fresh water, gas and the like in large water supply and drainage engineering and seawater and sewage treatment. The butterfly valve comprises a valve body, a valve seat arranged on the valve body, a valve plate rotating around a valve shaft, a valve shaft connected with the valve plate, a connection seat, a gland, a bushing, a seal ring and a rear end cover arranged on the bottom part of the valve body, wherein the connection seat, the gland, the bushing and the seal ring are arranged on the upper part of the valve body, thevalve shaft is connected with the valve plate by an upper valve shaft (4) and a lower valve shaft (9) through a square or flat head; the valve plate (2) is an inclined plate spherical surface; the valve seat (3) is directly vulcanized on the valve body (1) in a composite eccentric bevel sealing mode and completely covers the valve body (1); the upper and lower supports of the valve body (1) are sealed by an O-shaped seal ring (8); the O-shaped seal ring (8) is compacted by a packing gland (6) and the bushing (7); and the bushing (7) is installed in the upper and lower supports of the valve body (1). The invention has the advantages of capability of avoiding locking or over-closing, corrosion resistance, long service life, high sealing performance and the like.

The invention discloses a multifunctional supermarket cart baby seat system which comprises a handrail net. A first horizontal rod, a second horizontal rod, a third horizontal rod and a fourth horizontal rod are sequentially arranged on the handrail net from top to bottom; the fourth horizontal rod is connected with the bottom of a backrest net through a lower connecting rod; a bottom plate penetrates through the bottom of the backrest net; the front end of the bottom plate is connection into the third horizontal rod in a sleeving manner; the rear end of the bottom plate is in lap joint with the bottom of the backrest net; one end of a supporting frame is connected with the second horizontal rod; the two sides of the bottom of the supporting frame are connected with the backrest net through upper connecting rods; a carrier plate is arranged on the supporting frame and can be turned around the end of the supporting frame; a baby seat plate is connected onto the second horizontal rod in a sleeving manner. The invention further discloses an achieving method of the multifunctional supermarket cart baby seat system. The multifunctional supermarket cart baby seat system has the characteristics of being simple in structure, low in manufacturing cost, good in safety, reasonable in structure, good in limiting function, firm, durable, hygienic, convenient and the like.

The invention provides a vehicle-mounted device with a position-limiting function, which includes a box body, a pallet assembly slidably connected in the box body, a door panel connected to one end of the box body, and a door panel abutting against the door panel close to the box body. An adjustable elastic structure on one side of the box; two ends of the box are respectively provided with a limiting structure, and the pallet assembly can slide between the limiting structures at both ends of the box; the supporting plate Two ends of the component abut against a limiting structure and the elastic structure respectively. The vehicle-mounted device with the position limiting function provided by the invention has good fixing effect, convenient movement and relatively simple structure.

The invention discloses a controllable slitting device for glass fiber cabinet handle production, which comprises a mounting seat, a hydraulic rod is fixedly mounted on the upper end surface of the mounting seat, and a first limiting groove is formed in a mounting frame; the supporting assembly is mounted on the inner side of the upper end of the mounting base, and an air cylinder is arranged on the outer side of the upper end of a supporting plate; the driving motor is mounted at the right side end of the mounting seat, and a supporting rod is fixedly mounted at the lower end of the inner side of the mounting seat; and the fixing plates are fixedly installed on the inner walls of the left end and the right end of the installation base correspondingly, and a guide plate located on the upper side of the conveying belt is fixedly installed on the inner wall of the rear end of the installation base through a bolt assembly. According to the controllable slitting device for producing the glass fiber cabinet handle, the overall working efficiency is improved, the function of well controlling the slitting length is achieved, meanwhile, the good limiting and guiding functions are achieved before slitting, and better slitting work is facilitated.

The invention belongs to the technical field of underwater testing, and in particular relates to a limit support device of an underwater platform lifting system. The invention can prevent the underwater platform from shaking too much when it is lifted vertically out of the water or put into the water vertically from the air. The spring buffer device of the present invention adopts the design of a two-way spring, which can buffer the limit bracket in both directions. While reducing the left and right shaking of the platform device, it can also give the platform experimental device a certain buffer space to prevent the platform from being damaged during the platform installation process. The problems such as inability to position due to errors in the center reduce the risk of damage to the limit bracket device due to excessive external force, and the guide wheel will not be easily derailed by the action of spring force. The invention utilizes the guide wheel guide rail to achieve good position limiting and moving functions. When the guide wheel rolls on the angle steel track, it can effectively ensure that the hoisted experimental platform device will not shake back and forth, and when the lifting operation is performed in the pool, the heavy equipment Able to move straight vertically.

The invention provides a quick assembly tool for valve seat support, which includes a wrench assembly and a drive assembly. The drive assembly is used to install the valve seat support on the valve body. The rod part is also covered with a positioning disc, which is in contact with the valve body channel on the valve body. The driving head at the front end of the wrench assembly acts on the driving assembly, and the driving assembly drives the valve seat support to rotate, so that the valve seat support is threaded into the valve body. . The valve seat support quick assembly tooling of the present invention absorbs the sliding block set in the bottom plate made of ceramic material through the magnetic steel block on the inner wrench, ensures the connection between the wrench assembly and the drive assembly, and drives the valve seat support through the drive key The thread is tightly connected to the valve body.

The invention discloses hollow glass with a sun-shading curtain inside. The hollow glass comprises glass media on two faces, the sun-shading curtain arranged between the glass media on the two faces, a traction mechanism for controlling the sun-shading curtain, and a traction device fixed on the traction mechanism, wherein an operating device is arranged at a position, opposite to the traction device, outside the hollow glass; at least one of the operating device and the traction device comprises a magnetic material, so the operating device is connected with the traction device through a magnetic force; and at least one of the operating device and the traction device comprises a roller of which the roller surface is embedded with a flexible material. In the hollow glass, as the roller with a limiting structure is selected, the sun-shading curtain can be limited automatically based on a theory that the magnetic force is large in a near place and small in a far place under the condition of proper magnetic field intensity; therefore, the operating difficulty is reduced and the operating feel is improved.

The invention discloses a hand-operated cable unwinding wheel control device, which comprises a fixed plate, a rotating disk is arranged on the inwardly facing surface of the fixed plate, and a rotating shaft is arranged on the rotating disk, one end of the rotating shaft passes through the fixing plate, and rotates The other end of the shaft is provided with a buckle, and the buckle is buckled on the outer side wall of the rotating disc. The outer facing surface of the rotating disc is provided with a rocker arm, and the fixed plate is provided with a rotating hole through which the rotating shaft passes. The invention is conveniently fixed by the fixing plate, and the unwinding wheel can be installed at the end position of the rotating shaft, and the user can control the rotating disc to realize rotation through the rocker arm, so as to facilitate the rotation control of the unwinding wheel.

The invention discloses a hinge connected with a power distribution cabinet door. The hinge comprises a shield front part, a shield back part and a hinge jack; two ends of the hinge jack are respectively connected with the shield front part and the shield back part through hinge pins; ball hinges are mounted on the hinge pins; the upper side of the shield front part is welded with a front sealing plate; the upper side of the shield back part is welded with a back sealing plate; the front sealing plate is connected with the back sealing plate; two inflation sealing rings are arranged between the front sealing plate and the back sealing plate; an oil grease pipe is connected between the two inflation sealing rings; and as hinge jacks are arranged in the periphery of a shield, and ball hinges are mounted on hinge pins at two ends of the hinge jacks, so that a certain swing angle between the axis of the hinge jacks and the power distribution cabinet door is guaranteed to achieve a better limiting function on the cabinet door, and a mutual gap is smaller without disturbing operators.

The invention discloses a two-end tension structure of a bonded post-tensioned prestressed beam subjected to section construction. The two-end tension structure of the bonded post-tensioned prestressed beam subjected to the section construction comprises an anchor plate and an installation cavity body. A thread sleeve is fixedly installed on one side of the anchor plate through a bolt column, anda fixed plate is fixedly installed on the thread sleeve through a second thread docking sleeve, an installation frame is fixedly installed on one side of the fixed plate, and a first installation plate is fixedly installed on the installation frame through a thread column. An installation gasket is fixedly installed on the other side of the anchor plate, a spiral bar is fixedly installed on one side of the installation gasket through a docking seat, and the installation cavity body is fixedly formed in the end part of the spiral bar through a second installation seat. According to the two-endtension structure of the bonded post-tensioned prestressed beam subjected to the section construction, the functions of tensioning and fine-tuning are realized through the arranged installation frameand the thread column, the situation that pulling and loosening again are required after the construction of a project is avoided or reduced, an arranged reset spring can realize the function of two-end tensioning through reset performance of the reset spring, and the two-end tension structure of the bonded post-tensioned prestressed beam subjected to the section construction is worth popularizingand using.