37results about How to "Short operating stroke" patented technology

A composite switch having a configuration in which: on the upper part of movable contacts of a first switch to a fourth switch disposed in a case, two driving bodies made of an inelastic insulating material such as polyamide are mounted in parallel to a swing center shaft; an upper surface of the case is covered with a cover having two long holes from which upper parts of the two driving bodies protrude; and the two driving bodies are pressed by an operation body, made of an inelastic insulating resin, which is swingably supported. With a composite switch having this configuration, an operation stroke is short and the generation of noise can be suppressed.

The invention discloses a carbon material roasting and graphitization production line hoisted by bridge-type lifting equipment, which includes graphite electrode grouping equipment and a roasting furnace arranged in sequence along the running direction of bridge-type lifting equipment, and the graphite electrode grouping equipment is used for graphite electrode grouping The electrodes are connected in series, grouped and added, and the bridge-type lifting equipment is used to grab and lift the graphite electrodes after grouping and adding sheets in the graphite electrode grouping equipment, and put them into the roasting furnace for roasting processing; Insulation cover, graphite electrode marshalling system and roasting furnace are arranged in sequence in the running direction of the lifting equipment, and the graphite electrodes marshalled in the graphite electrode marshalling equipment are grasped and lifted by bridge lifting equipment, and safely and conveniently put into the roasting furnace The roasting process is carried out in the interior, and then the heat preservation cover is hoisted to the furnace mouth of the roaster for sealing, realizing the assembly line processing and production process of graphite electrodes.

The present invention relates to a safe and reliable earth brake of which the fixing pedal rod and fixing releasing fixing pedal rod are not crossed. Even the finger or article, etc. enters the space between the fixing pedal rod and the fixing releasing fixing pedal, the finger or article is not clamped with strong force. The earth brake comprises the following components: a bracket part which isprovided with a plate-shaped support part at the upper end and is offset upwards and is elastic; the fixing pedal rod which has an approximate V-shape and is articulated on the bracket part by a first pin and simultaneously gets across the bracket part extending frontwards and backwards; a fixing releasing pedal rod which is parallely installed at the outside of fixing pedal rod and has a back side that is articulated inside the supporting part through a second pin; and a connecting sheet which is positioned between the second pin and the fixing pin. The back side of fixing pedal rod is installed with a fixing pin which can engage with the bracket part, and the front side is installed with a pedal part.

The invention discloses a valve element group switching control mechanism. The valve element group switching control mechanism comprises at least two valve elements and further comprises at least two key modules and a first elastic piece. Each key module comprises a key for opening the corresponding valve element and a control rod, wherein the keys and the valve elements are correspondingly matched; each control rod can be assembled on the corresponding key in a way of being capable of moving along the axial direction of the corresponding key; a locking structure for locking the corresponding key is matched between each control rod and the corresponding key. The control rods of at least two key modules are coaxially linked; the control rod of at least one key module is connected with the first elastic piece for resetting; any one key at a resetting state is used for opening the corresponding valve element in a pressing manner and drives each control rod to do the axial movement; the corresponding control rod is used for driving the corresponding locking structure through resetting to lock the pressed key; the residual control rod is used for driving the corresponding locking structure through axial movement to unlock the corresponding pressed key, so that the key is reset. With the adoption of the structure, the valve element group switching control mechanism can be used for realizing linkage type switching control of at least two valve elements.

The unit of low-volatile distribution cabinet includes left and right side plates with double-folded edge, fixed plate, removable back plate, and installation beams being connected. Advantages are: under precondition of not changing original outline structure of unit in draw-out type to reach purpose of operation without opening door. In procedure of operation, function for displaying position requested by national standard is satisfied. Technique of double-folded edge enhances intensity. Thus, thickness of plate is changed to 1.0-1.5mm, and more than 1 / 4 cold steel plate is saved. Electricalconnector pieces on moved plate are still aligned to vertical bus precisely. Both way connector (BC) is in module form. Being connected to BC, the conducting strip is changed to forficiform structurefrom thermal fin type. Thickness of copper plate changes to 2.0mm so as to save material, but still meet requirement of contact insertion and withdraw force, and standard value of temperature rise.

The invention relates to a deep groove ball bearing retainer dismantling method. A retainer of a deep groove ball bearing is positioned and supported by means of an auxiliary bearing dismantling tool so as to be prevented from rotating and then is placed on a working table of a drilling machine, drilling cuttings on the heads of all rivets of the retainer of the deep groove ball bearing are removed by means of a drill bit of the drilling machine, and thus two retainer bodies of the retainer of the deep groove ball bearing are separated to complete dismantling. The deep groove ball bearing retainer dismantling method has the advantages that dismantling operation is easy and convenient, all components of the bearing are prevented from being damaged, accurate bearing disassembly analysis is achieved, and reutilization of qualified components of the bearing is achieved.

The invention discloses a direction switch assembly of a forklift. The direction switch assembly comprises two direction switches, a fixing plate, a gear shift mechanism and a prodding element, wherein the gear shift mechanism consists of a guide rail which is horizontally arranged at the intermediate position of the fixing plate and a sliding block matched with the guide rail, and protrusions are respectively arranged at the intermediate position of the upper side end surface and the intermediate position of the lower side end surface of the sliding block; the two direction switches are respectively fixed on the fixing plate, and are oppositely and symmetrically distributed on the upper side and the lower side of the sliding block, and when free ends of control rods of the direction switches are in contact with the end faces of the protrusions, the direction switches are closed; the prodding element is connected to the front surface of the sliding block. The direction switch assembly disclosed by the invention has the advantages that the direction switch assembly adopts a tiled structure, the switching off or the switching on of the two direction switches is controlled through different positions of the sliding block on the guide rail, and besides, the prodding element is directly connected to the sliding block, so that the structure is more compact; therefore, the mounting position of the direction switch assembly can be changed and is no longer limited to steering tube columns of the forklift, and besides, the prodding operation mode of the prodding element conforms to human engineering.

The invention discloses a special die for manufacturing a grinding wheel. The special die for manufacturing the grinding wheel comprises a bottom die, an outer upper die, an inner upper die, an inner middle die, a core die and an elastic connecting piece, the core die is sleeved in the core hole in the top of the inner upper die, the inner upper die, inner middle die and bottom die are coaxially arranged in sequence from the top to bottom and sleeved in the outer upper die, and the outer upper die is connected with the bottom die through the elastic connecting piece; the inner middle die is firmly connected with a bottom die support barrel, and the outer diameter of the inner middle die is larger than that of the support barrel; the outer upper die is sleeved with the bottom die through an annular clamp at the bottom, and the outer upper die is in limit connection with the inner middle die; a cavity for forming the grinding wheel is arranged among the inner wall of the outer upper die higher than the top surface of the inner upper die, the outer wall of the core die higher than the top surface of the inner upper die and the top surface of the inner upper die. The special die for manufacturing the grinding wheel is capable of reducing the friction consumption of the die, guaranteeing the grinding wheel production quality and prolonging the service life of the die.

The invention discloses a laver breeding device, which is characterized in that floating ball carriers are formed by fixing floating balls and cross rods, a plurality of floating ball carriers are transversely arranged along the length direction of the breeding net, the floating ball carriers at the front end and the rear end of the breeding net are respectively a front floating ball carrier and arear floating ball carrier, the left side and the right side of the front floating ball carrier and the rear floating ball carrier are respectively tied with a pair of cables, two pairs of the cablesboth comprise first cables and second cables, the free ends of the first cable and the second cable in each pair of cables are tied together and are respectively connected with two third cables, andthe free ends of the two third cables can be respectively fixed with two column piles, so that people can hook the distal end of the cross rods of the front floating ball carrier or the rear floatingball carrier through a pull rod to lift the cross rods, and the whole breeding net can be turned over by taking the two third cables as rotary central shafts of the device, so that laver seedlings canbe soaked and solarized.

The invention discloses a manual and automatic button for a water discharge valve. The manual and automatic button comprises a pressing cylinder, a button shell, a button, an electronic button, a pushing rod, a pushing rod locking block, a locking nut, a wired hose and a steel wire. The button shell is fixedly sleeved into the pressing cylinder and in bolt joint with the locking nut on the outer wall of the pressing cylinder for locking. The button, the electronic button and the pushing rod sequentially and movably sleeved into the button shell. The button is disposed at the end opening of the button shell. The pushing rod penetrates through the button shell. One end of the steel wire is fixedly connected to one end of the button shell. The pushing rod locking block is in fixed sleeve joint with one end of the wired hose and abuts against one end, away from the button, of the pushing rod. The wired hose is movable sleeve joint with the steel wire. By adoption of cooperation among the button, the pushing rod, the pushing rod locking block, the wired hose, the steel wire and the like, the function of opening the water discharge valve can be triggered off during power out in order to ensure that the function of the water discharge valve does not fail during power cut. The manual and automatic button for the water discharge valve is advantaged by being good in operation hand feeling, small in operation force, short in operation stroke and sensitive in triggering.

The present invention is an auxiliary frame for putting on and taking off a pullover, which comprises a symmetrically arranged first auxiliary frame and a second auxiliary frame. The first auxiliary frame includes a fixed bracket. There is an arc-shaped front pull guide rail on the seat, and a manipulator is installed sliding on the front pull guide rail, and a transmission chain for driving the manipulator to slide is also provided on the front pull guide rail. The rotating arm on the seat, the finger clamp mechanism fixed on the rotating arm and the rotating arm motor fixed on the sliding seat, the rotating arm motor is used to drive the rotating arm to rotate, and the finger clamp mechanism includes a pressing bracket and a clothes folding bracket set oppositely , the pressing bracket is rotated with a pressing plate, the pressing plate is rotated with a roller one, and the clothes-folding bracket is rotated with a roller two that cooperates with the roller one to compress the pullover. Clothes machine, the structure of the second auxiliary frame is the same as that of the first auxiliary frame.

The invention discloses a valve element and a water way control valve. The valve element comprises a valve shell, a control rod, a water pressure control piece, a water way control sealing piece and a capillary hole forming element. The water pressure control piece forms a water pressure cavity with a first opening and a second opening. An auxiliary water outlet and a main water outlet are formed in the side face of the valve shell, wherein one end is a water inlet end. The water pressure control piece and the water way control sealing piece are arranged in the valve shell in a sleeved mode. The water way control sealing piece is provided with a deforming part which is directly or indirectly matched with the main water outlet of the valve shell in a sealing mode. The capillary hole forming element is arranged on the water way control sealing piece in a sleeved mode, and a capillary hole for being communicated with the water pressure cavity and the water inlet end of the valve shell is formed. The first opening of the water pressure cavity is communicated with the auxiliary water outlet of the valve shell. The control rod is movably arranged the water pressure control piece in a sleeved mode and is provided with a sealing part. The first opening is opened or sealed by the fact that the sealing part moves in the axial direction along with the control rod. The water way control valve comprises a valve body and the valve element. The water way control valve has the advantages that operation force is small, and operation stroke is short.

The invention relates to the technical field of elevator door locks, and relates to a household elevator safety door locking device. A positioning switch is arranged at one side of a fish mouth type buckle, a contact of the positioning switch is matched with the side wall of the fish mouth type buckle, the other end of the inner side of the box body is fixedly provided with a signal input interface through a cross-shaped screw, a traction electromagnet and a double-contact switch are arranged between the fish mouth type buckle and the signal input interface in sequence, one end of the traction electromagnet is arranged in the middle of one side of the fish mouth type buckle, an inserting groove at the other end of the traction electromagnet is connected with an extension portion of a limit switch seat in an inserting mode, a limit switch is fixed on the limit switch seat, and a contact of the limit switch is matched with the double-contact switch. The household elevator safety door locking device is simple in structure, reasonable design, convenient to install and debug, high in safety, and favorable for popularization and use.