365 results about "Locked plate" patented technology

The utility model relates to the technical field of electric energy metering boxes, and discloses an electric energy metering box with a safety protection device, which comprises a box body, the outer wall of the box body is rotatably connected with a sealing cover, the outer wall of the sealing cover is fixedly connected with a lock plate, the outer wall of the lock plate is fixedly connected with a lock catch, and the lock catch is fixedly connected with the safety protection device. A lock head penetrates through the outer wall of the lock catch, a sealing strip is fixedly connected to the outer wall of the sealing cover, an electric energy meter is fixedly connected to the inner wall of the box body, and a sealing assembly is arranged in the box body. According to the electric energy metering box with the safety protection device, a push plate on the box body is covered by a sealing strip, so that the push plate ejects a baffle open, a rotating rod rotates to enable the sealing plate to rotate to block a gap between a sealing cover and the box body, the sealing cover is attached to the sealing plate at the moment, a telescopic clamping block is clamped with a clamping groove, and water leakage is prevented; and the sealing cover can be opened only when the handle is pressed.

The utility model relates to the technical field of locks, in particular to a lifting type luggage lock which comprises a lock shell, a locking mechanism, an unlocking piece, a lock plate and a swing block, the lower end portion of the swing block is hinged to the lock shell, the upper end portion of the swing block is hinged to the middle of the lock plate, and a lock hook portion is arranged at the front end portion of the lock plate. During unlocking, the whole lock plate swings forwards with the swing block as a fulcrum shaft so as to be lifted relative to the lock shell. During locking, the whole lock plate swings backwards with the swing block as a fulcrum shaft and is attached to the lock shell downwards. The locking mechanism clamps the locking plate to keep locking; after a correct instruction is input into the locking mechanism, limitation on the lock plate can be relieved by operating the unlocking piece through external force. Compared with the prior art, the lock plate can hook the opening and closing two sides of the luggage to be close to each other, so that the opening and closing two sides of the luggage are combined more tightly, and the luggage is not easy to be unlocked maliciously.

The utility model relates to the technical field of caps, and discloses an adjustable cap which comprises a peaked cap, an adjusting belt is fixedly connected in the peaked cap, one end of the adjusting belt is fixedly connected with a frame, and a locking assembly is arranged in the frame. The locking assembly comprises a locking plate, one side of the locking plate is rotationally connected into the frame, an adjusting groove is formed in the frame, the adjusting belt is arranged in the adjusting groove in a penetrating mode, an open groove is formed in the frame, a locking groove is formed in the frame, and a toothed plate is fixedly connected to the bottom of the locking plate. According to the adjustable cap, the position of the frame on the outer wall of the adjusting belt is adjusted, the adjusting belt is shortened, then the head circumference of the peaked cap is adjusted, only the locking plate and the frame need to be buckled during locking, the clamping block in the locking plate and the locking groove are embedded for locking, the effect of rapidly adjusting the head circumference of the cap is achieved, and the problem that the head circumference of the cap cannot be adjusted rapidly during traditional buckle adjustment is solved. Therefore, the convenience of the adjustable hat is improved.

A cargo handling system is disclosed herein. The cargo handling system includes a ball panel for moving and storing cargo and a cargo restraining device disposed within the ball panel. The cargo restraining device includes a base, a cam head having a rounded base portion, the rounded base portion having a lock slot formed therein, a shaft securing the cam head to the base, and a spring-loaded lock plate configured to engage the lock slot.

The invention relates to a switch cabinet with an interlocking mechanism, which comprises a mounting base and a switch cabinet door, a circuit breaker mechanism and an isolation grounding mechanism are arranged on the mounting base, and the isolation grounding mechanism comprises an isolation shaft and a grounding shaft which are rotatably arranged on the mounting base. The circuit breaker mechanism comprises an opening and closing shaft and an interlocking assembly used for locking or unlocking the switch cabinet door, the circuit breaker mechanism further comprises a lock plate fixed relative to the opening and closing shaft and a guide piece arranged on the mounting base in a sliding mode, and the interlocking assembly comprises a lock piece arranged on the mounting base in a sliding mode. And the lock plate is directly or indirectly pressed against the guide piece or the lock piece after rotating. According to the technical scheme, the isolation shaft, the grounding shaft and the driven shaft are integrated on the same mounting base, the linkage assembly is arranged to achieve three-shaft linkage, and mechanical interlocking between the isolation shaft and the grounding shaft can be achieved in cooperation with the blocking part on the isolation piece.

The invention provides a full-automatic self-locking trailer tail hook in order to solve the problems that an existing trailer hook is unstable in self-locking performance and short in service life, and the full-automatic self-locking trailer tail hook comprises a trailer hook body, a driving part and a self-locking structure. The self-locking structure comprises a self-locking plate, a limiting plate, a rotating piece, a self-locking pin and a rotating shaft; the rotating shaft is in transmission connection with the driving piece; the self-locking plate is fixedly arranged on an external frame; the rotating piece is rotationally arranged on the outer side of the rotating shaft and is further fixedly connected with the tow hook; the limiting plate is fixedly arranged on the outer side of the rotating shaft and located between the rotating piece and the self-locking plate. A waist-shaped hole is also formed in the rotating piece; the self-locking pin penetrates through the arc-shaped hole and enters a groove formed in the self-locking plate; the two ends of the arc-shaped hole correspond to the two ends of the kidney-shaped hole. The self-locking plate is provided with an arc-shaped groove corresponding to the far end in the kidney-shaped hole, the self-locking plate is further provided with a self-locking hole communicated with the groove, and the other end of the self-locking hole faces the axis of the rotating shaft. Therefore, rotation self-locking is achieved, and the service life and the self-locking effect are guaranteed.

The utility model provides an interlocking mechanism for a grounding switch and a switch cabinet, and the interlocking mechanism comprises a lock plate which can rotate between an avoiding position and a blocking position, when the lock plate is located at the avoiding position, the lock plate can prevent a rear door from being opened, and when the lock plate is located at the blocking position, the rear door can be opened; when the locking block is located at the first position, the locking block stops the operation main shaft from rotating so as to enable the grounding switch to be kept in a closed state, and when the locking block is located at the second position, the operation main shaft can rotate; the transmission part is connected between the lock plate and the locking block, the locking block is located at the first position when the lock plate is located at the avoiding position, and the locking block is located at the second position when the lock plate is located at the blocking position. According to the interlocking mechanism for the grounding switch, the locking plate and the locking block are arranged, and the two parts are connected through the transmission piece, so that the locking plate can be close to the rear door, the locking block can be close to the grounding switch, and the interlocking reliability is further improved.

A vehicle door lock with anti-escape and anti-blocking functions comprises a carrier, a lock plate, a first unlocking member, a second unlocking member and a relay member rotatably connected to the carrier. The lock plate has a blocking block and a first blocked portion. The first unlocking member has a driven portion, a protruding column and a first blocking portion blocking the first blocked portion. The second unlocking member has a protruding arm, a second blocked portion and a second blocking portion blocking the protruding column. The relay member has a driving portion, a top portion and a third blocked portion. When the relay member is rotated, the top portion pushes the second unlocking member to release the protruding column, the first blocking portion leaves the first blocked portion to release the lock plate, the blocking block blocks the second blocked portion and the protruding arm blocks the third blocked portion. Thus, the anti-escape effect of preventing the first blocking portion from escaping or leaving the first blocked portion and the anti-blocking effect of preventing the first unlocking member from blocking the rotation of the lock plate are achieved.

The utility model relates to antenna shell injection mold technical field, a kind of antenna shell injection mold, including upper mould, the lower surface of the upper mould is provided with lower mould, cooling pipeline is opened in the upper mould and lower mould, the water inlet and outlet connector is fixedly connected in the water inlet and outlet end of cooling pipeline, the connecting mechanism that is convenient for quickly and external pipeline lock is provided on the water inlet and outlet connector, the lock plate is fixedly connected in the outer surface of water inlet and outlet connector, the sealing ring is fixedly connected in the outer surface of water inlet and outlet connector, the connector plug-in arrangement is in water inlet and outlet connector. The injection mold of the antenna shell, the water inlet and outlet connector is connected in the inlet and outlet end of cooling pipeline that is opened in the side of upper mould, the lock plate and sealing ring fixedly connected on the water inlet and outlet connector are connected with connector and jack, and water pipe is installed in the outer end of connector, to be connected with water inlet and outlet connector and cooling pipeline for the water pipe quickly to the temperature control of upper mould and lower mould.

A rotor locking device, comprising a lock plate body (1), telescopic assemblies (2), connecting plates (3), and locking assemblies (4). The lock plate body (1) comprises a rotor fastening portion (11) and locking box portions (12), wherein the rotor fastening portion (11) is provided with rotor connection holes (111) for connecting to a rotor, and each locking box portion (12) is provided with locking box fastening holes (121) for mounting the locking assemblies (4). The connecting plates (3) partially penetrate the inside of the locking box portions (12) and are connected to the locking box portions (12) by means of the telescopic assemblies (2); each connecting plate (3) is provided with a lock pin hole (31) matching a rotor lock pin and connecting plate fastening holes (32) for mounting the locking assemblies (4). The locking assemblies (4) pass through the locking box fastening holes (121) and the connecting plate fastening holes (32). The solution has advantages such as enabling fastening at any rotor azimuth angle. In addition, the present invention further relates to a usage method for the rotor locking device and a wind turbine.

A door assembly comprises a door panel with a plurality of lock bolt holes extending through an edge of the door panel; a lock plate with a plurality of lock plate holes, wherein the lock plate is coupled to the edge of the panel and each of the plurality of lock plate holes is aligned with a respective lock bolt hole of the plurality of lock bolt holes; and a removable trim plate coupled to the lock plate and disposed over the plurality of lock plate holes.

The invention relates to the technical field of medical equipment, in particular to a hand and foot hemostasis snap ring which comprises a flexible ring body, an adaptive adjusting opening is formed in the annular track of the flexible ring body, a variable part and a locking assembly are arranged in the adaptive adjusting opening, the two ends of the variable part are connected with the two ends of the adaptive adjusting opening, and the locking assembly is connected with the variable part. The locking assembly comprises a lock catch connected to one end of the adaptive adjusting opening, a top pressing type lock plate is arranged at the inner side end of the lock catch, a spring bolt is connected to the outer side end of the lock catch in a rotating mode, the locking assembly further comprises a locking belt connected to the other end of the adaptive adjusting opening, the free end of the locking belt is inserted into the lock catch, and the free end of the locking belt is connected with the lock catch in a rotating mode. The tail end of the spring bolt abuts against the back face of the lock belt, the locking function is achieved, and back supporting force is provided when the cutter forcibly cuts off the lock belt. Sleeving can be completed with one hand, pressing and locking can be completed by tensioning the locking belt, the device is particularly suitable for self-rescue or rescue in narrow space, and locking, loosening and forced cutting are all convenient to operate.

The utility model relates to the technical field of plastic dipping equipment, and provides a double-track lifting appliance structure for plastic dipping, which comprises a driving track, a conveying track, a lifting track, a plastic dipping pool, a lifting appliance, a driving chain, a locking plate and a locking column, the driving track and the conveying track are arranged side by side, the lifting track is arranged in a lifting and sliding manner relative to the conveying track, and the plastic dipping pool is arranged below the lifting track; the lifting appliance is movably arranged relative to the length direction of the conveying track and used for lifting workpieces, the driving chain is movably arranged in the driving track, the locking plate is arranged on the driving chain, the locking plate is provided with a locking groove, the locking column is used for being arranged on the lifting appliance, and after the lifting track ascends and descends, the locking column enters or breaks away from the locking groove. And the lifting appliance enters the notch and is spliced with the conveying rail, or is separated from the notch and drives the lifting appliance to approach the plastic dipping pool. By means of the technical scheme, the problems that in the prior art, the detachable connection structure between the lifting appliance and the chain is complex, and the chain load is increased are solved.

The utility model discloses curtain wall glass which comprises a glass outer frame arranged on the outer side of a glass body, a locking edge arranged at one end of the outer side of the glass outer frame, a glass limiting frame strip arranged on one side, attached to the glass body, of the inner side of the glass outer frame, and a sealing gasket fixedly bonded to one end, close to the glass limiting frame strip, of the glass outer frame. A locking mechanism is arranged on the side, located on the locking edge, of the glass outer frame, and the glass outer frame is fixedly connected to one side of the longitudinal support through the locking mechanism. The curtain wall glass frame has the advantages that the glass outer frames on the two pieces of curtain wall glass adjacent in the horizontal direction can be locked and fixed at the same time through a locking plate in the locking mechanism; and when the glass main body in the glass outer frame needs to be replaced, the glass main body can be detached and replaced only by detaching the glass limiting frame strips on the inner side of the corresponding glass outer frame indoors, and compared with a traditional replacement mode, the glass main body does not need to be replaced outdoors by personnel, so that convenience is achieved, and the safety coefficient is high.

The utility model discloses a universal passive heat dissipation case, which comprises a heat dissipation metal shell, a pressing plate, a heat dissipation sheet, a mainboard and a spring, the pressing plate is arranged in a bottom opening of the heat dissipation metal shell or in the heat dissipation metal shell, and the heat dissipation sheet and the mainboard are respectively arranged in the heat dissipation metal shell. The cooling fin is fixedly connected with the mainboard through the lock plate connecting piece and located above a CPU of the mainboard, the upper end of the spring is connected with the lower end of the lock plate connecting piece, the lower end of the spring abuts against the pressing plate, the spring can jack up the cooling fin upwards, and therefore a shell cooling boss of the cooling fin is in close contact with the cooling metal shell all the time. According to the utility model, the radiating fins are tightly contacted with the radiating metal shell by adopting a spring compression mode, screws are not needed to be fixed with the radiating metal shell, the radiating metal shell does not need to be punched, the CPU of the mainboard and the radiating fins can be compatible with the radiating metal shell even if the mounting positions of the CPU and the radiating fins are different, so that the radiating metal shell can be suitable for different mainboards, and the radiating efficiency is improved. And the universality is good.

The utility model belongs to the technical field of carrying equipment, and particularly relates to a locking mechanism and carrying equipment. The locking mechanism comprises an unlocking driving assembly, a supporting base, an elastic piece, a locking plate provided with a locking hole and a lock catch installed on a piece to be locked. The two opposite ends of the elastic piece are connected with the supporting base and the lock plate respectively, the unlocking driving assembly is installed on the supporting base, and the lock catch is inserted into the lock hole in a sliding mode. The elastic force of the elastic piece enables the lock catch to abut against the lock wall of the lock hole so as to lock the piece to be locked. And the unlocking driving assembly is used for driving the lock plate to move, so that the lock catch is separated from the lock wall of the lock hole to unlock the to-be-locked piece. According to the locking mechanism, the structure is simple, the manufacturing cost is low, locking and unlocking operation is easy, and the stability of the part to be locked in the locking state is guaranteed.

The utility model discloses a foam board surface gluing auxiliary device which comprises a platform frame, two sliding plates capable of sliding face to face or back to back are symmetrically arranged on the platform frame, and the ends, facing each other, of the two sliding plates are fixedly connected with an inverted-L-shaped strip. The upper end of the inverted-L-shaped strip transversely extends inwards, end plates are arranged at the front end and the rear end of the inverted-L-shaped strip, a guide rod is arranged between the two end plates, the guide rod is slidably sleeved with a lock plate, and a plurality of partition plates are slidably arranged between the lock plate and one end plate; a long-strip-shaped hole extending transversely is formed in the vertical face of the inverted-L-shaped strip, the outer side of the inverted-L-shaped strip is sleeved with a U-shaped block in a sliding mode, the bottom of the U-shaped block penetrates through the long-strip-shaped hole and then is connected with a locking plate, a screw hole is formed in the upper portion of the U-shaped block, and a locking bolt is installed in the screw hole. First limiting blocks are arranged on the two sides of the partition plate, and second limiting blocks aligned with the first limiting blocks are arranged on the side, facing the partition plate, of the locking plate. The foam board surface gluing auxiliary device can position foam boards of different specifications, and gluing is convenient.

The utility model discloses a door and window sealing structure which comprises an installation frame body, a glass frame, a handle and a movable plate, the glass frame is movably installed in the installation frame body, the handle is movably installed on the front surface of the glass frame and close to one side, and the movable plate is movably embedded in the surface of one side of the glass frame. According to the door and window sealing structure, through the mode that the installation frame body, the glass frame, the handle and the movable plate are matched with one another, when the glass frame is closed, the handle is rotated, locking is completed through the lock plate and the installation frame body when the handle rotates, and in the rotating process of the handle, the gear of the handle is matched with the tooth groove of the movable plate, so that locking is completed. The movable plate extends out of the plate groove until the rubber rod on the front surface of the movable plate is embedded in the embedding groove of the mounting frame body, so that the closed glass frame can be sealed, and air flow is prevented from flowing into a room from the outside due to gaps in the movement track of the lock plate.

The invention relates to the technical field of fishing net weaving, and provides a fishing net weaving device which comprises a main body, a rack is arranged on the main body, a rotating disc is fixed to the rack, a wire frame driven by a motor is rotationally connected to the rotating disc and comprises a block-up block fixed to the rotating disc, a C-shaped frame is fixed to the block-up block, and the C-shaped frame is fixed to the rotating disc. A lower abutting plate is hinged to the lower end of the inner side of the C-shaped frame in the vertical direction, and an upper abutting plate for limiting the braided wire is arranged above the lower abutting plate. It can be understood that the lower abutting plate and the C-shaped frame are designed to be of a rotatable structure, braided wires are convenient to take and place, meanwhile, the upper abutting plate and the lower abutting plate are matched up and down to limit the braided wires, and installation operation is simplified; according to the locking mechanism, rapid positioning of the upper abutting plate is achieved through a rectangular column and a U-shaped groove, locking is completed by means of small-angle rotation of a locking plate and a locking groove, and stable locking is ensured by combining the effects of thread pressing and a steel spring.

The utility model relates to the technical field of fire fighting truck cabinets, in particular to a fire fighting truck cabinet hiding structure which comprises a cabinet body, a mounting frame, a rotating mechanism, a moving assembly, two folding doors, a sliding component, a locking plate and a locking device, the mounting frame, the rotating mechanism and the sliding component are respectively arranged on the cabinet body, and the rotating mechanism is rotatably connected with the mounting frame. The moving assembly is fixedly connected with the rotating mechanism, the other end of the moving assembly is rotationally connected with the mounting frame, one ends of the two folding doors are fixedly connected with the cabinet, the other ends of the two folding doors are fixedly connected with the sliding component and the moving assembly respectively, the locking plate is fixedly connected with the corresponding folding door, and the locking device is detachably connected with the corresponding folding door. By means of the structural arrangement, the problems that in an existing fire fighting truck, due to the fact that communication equipment and the like are exposed on a cabinet, and due to the fact that the cabinet is not provided with a shield, the visual attractiveness is affected are solved.

The utility model discloses a fixing and locking mechanism for a four-column lifting machine, which comprises a lock tooth (1) fixedly connected on the side wall of a column, a plurality of lock grooves (2) distributed on the lock tooth (1) at intervals along the height direction, a lock plate (3) buckled and connected in any lock groove (2), a lifting frame slidably connected in the middle of the lock plate (3), and a limit plate (4) rotatably connected with the lifting frame and arranged on one side of the lock plate (3) far away from the lock tooth (1). The outer part of the limiting plate (4) is respectively connected with a driving mechanism and a resetting mechanism, and the middle part of the limiting plate (4) is respectively provided with a telescopic assembly and a supporting plate (5); the telescopic assembly comprises a pull rod (6) rotationally connected with the limiting plate (4), and the end of the pull rod (6) extends to the outer side of the limiting plate (4) and is rotationally connected with the locking plate (3). The locking device has the advantages of being good in locking effect and convenient to operate.

The application discloses a filter bin of a melt filter, which comprises a bin body, an inclined partition plate, a bin cover and a quick-release structure. The bin body is provided with a pre-filtering inlet and a post-filtering outlet. The inclined partition plate is arranged obliquely, so that the inner end of the post-filtering outlet is communicated with the lower end of the post-filtering outlet, and the melt is guided to be completely discharged by gravity. The quick-release structure comprises a lock plate, a lock frame, a lock hook, a pull frame and other components. A telescopic control assembly drives an inserting rod, and the pull frame is matched with a transmission block, so that the quick locking / unlocking of the lock hook and the lock plate is realized. In some embodiments, elastic members are arranged between the lock block and the lock hook, so that the locking stability is enhanced. The telescopic control assembly adopts a rotating ring linkage multi-inserting rod, so that the synchronism is ensured. The filter bin is further provided with a sealing structure which is linked with the lock hook. A lifting ring drives a sealing ring to cooperate with hydraulic oil, so that mechanical-hydraulic double sealing is realized. The filter bin solves the problems of melt residue, inconvenient disassembly and unreliable sealing of the existing filter bin, has the advantages of complete melt discharge, efficient disassembly and high sealing performance, and is suitable for the field of chemical melt filtration.

The protective cover installation structure comprises a frame and a protective cover body, the frame is provided with a containing cavity used for containing parts of the exercise bicycle, a plurality of locking plates are arranged along an opening of the containing cavity, each locking plate is provided with a locking opening, the protective cover body is provided with a locking piece, the locking pieces and the locking openings are installed in a locked mode, and the protective cover body is connected with the locking pieces. And the protection cover body is fixed by inserting and clamping the locking piece into the locking opening. The exercise bicycle protection cover installation structure is convenient for customers to install and maintain by themselves and does not need screws.

The utility model relates to the technical field of locks, in particular to a lifting type luggage lock with a longitudinally-arranged password, which comprises a lock shell, a password assembly, a push button, a lock plate and a swing block. The code assembly is arranged in the assembly table and comprises a floating plate, a plurality of code wheels and a plurality of code adjusting wheels, the code wheels are longitudinally arranged and partially penetrate out of the top of the assembly table, the code adjusting wheels are coaxially installed in the code wheels in a one-to-one correspondence mode, and the code adjusting wheels and the corresponding code wheels rotate together. During use, the lock shell is fixed to one side of the opening and closing side of the luggage, and the lock hook part of the lock plate is used for hooking the other side of the opening and closing side of the luggage to achieve locking. When the lock plate moves downwards close to the lock shell from the lifting state, the lock plate can move backwards with the swing block as a fulcrum shaft, and therefore the two opening and closing sides of the luggage can be hooked to be close to each other, the two opening and closing sides of the luggage are combined more tightly, and the lock is not prone to being opened maliciously. Furthermore, the password wheel of the password component is exposed from the top of the lock shell for operation, so that the use habits of some consumers are better met, and the user experience is improved.

The invention relates to a motor vehicle locking device, in particular a motor vehicle lock, preferably a motor vehicle door lock. The locking device is provided with a locking mechanism (2, 3) which is supported in or on a locking plate (1) and mainly comprises a locking tongue (2) and a locking claw (3). The bolt (2) has a stop arm (2a), a load arm (2b), and an inlet opening (2c) arranged between the two arms (2a, 2b) for receiving the lock catch (4). Furthermore, a support element (6) is provided which is coupled to the lock plate (1) for transmitting a force (F) acting on the latch (4), which is gripped by the bolt (2) in the locked state, to the lock plate (1) via the bolt (2). According to the invention, a load arm (2b) of the bolt (2) is supported on a support element (6). Alternatively, a projection (10) coupled to the bolt (2) can also be supported on the support element (6).

The utility model discloses a track mounting structure of a combination switch, which comprises an upper cover, a bottom shell, a connecting groove arranged in the middle of the bottom shell and used for being connected with a track, and a lock plate assembly. A limiting step is arranged on one side of the connecting groove, a lock plate groove is formed in the other side of the connecting groove, a transverse plate is arranged above the lock plate groove, the lock plate assembly comprises a lock plate, a sliding rod and a reset spring, the lock plate slides in a sliding hole between the transverse plate and the lock plate groove, the sliding rod is matched with a through hole of the transverse plate and connected with different portions of the lock plate, and the reset spring provides elastic force to push the lock plate to one side of the connecting groove. The beneficial effects are that the combination switch can be rapidly mounted and dismounted without tools, the mounting efficiency is greatly improved, and the labor cost is reduced; meanwhile, the lock plate is tightly matched with the rail, and the structures on the two sides of the connecting groove interact, so that the mounting stability and reliability are enhanced, loosening and falling are avoided, and stable operation of equipment is guaranteed.

The utility model discloses a waste gas monitoring sampling gun support which comprises a mounting block, a quick fixing mechanism is arranged on the mounting block, the quick fixing mechanism comprises a lower clamping plate, an upper clamping plate, a locking plate, a rotating rod, an inserting rod, a fixing sleeve, an inclined groove, a sliding block, an abutting block, a clamping plate, a clamping groove and a limiting mechanism, the lower clamping plate is fixed at the top end of the mounting block, and the upper clamping plate is rotationally connected with one end of the lower clamping plate; the locking plate is arranged at one end of the upper clamping plate, the rotating rod rotates at one end of the lower clamping plate, the inserting rod is fixed to the top end of the rotating rod, and the fixing sleeve is arranged at the top end of the inserting rod. And a clamping mechanism of the clamping plate and the clamping groove is matched, so that the sampling gun is quickly fixed.

The utility model belongs to the technical field of paddy field irrigation, and discloses a fixed water level monitoring pointer which comprises a positioning rod, a plurality of positioning rings for indicating the water level are movably arranged on the positioning rod, and the positioning rings are arranged corresponding to scale marks arranged on the positioning rod. The positioning ring comprises a first semi-ring and a second semi-ring which are detachably connected, the first semi-ring and the second semi-ring are arranged around the positioning rod, and a plurality of locking buckles used for locking are arranged between the first semi-ring and the second semi-ring; the locking buckle comprises a locking plate rotationally connected to the first half ring, a fixing locking plate corresponding to the locking plate is arranged on the second half ring, and the locking plate and the fixing locking plate are arranged in a locking mode. The saline-alkali paddy field water level monitoring device is simple in structure and convenient to use, the overall design is optimized, the water level in the saline-alkali paddy field can be accurately monitored, the flexibility and the adjustability are high, the structural stability and the durability of the whole device are enhanced, recycling is conveniently achieved, and follow-up planting is not affected.

The utility model discloses an electric anti-theft lock which comprises a lock catch piece and a lock hook piece which are rotationally arranged on a lock plate, and a spring piece connected between the lock catch piece and the lock hook piece, and a detection switch located on the motion path of the lock catch piece or the lock hook piece is arranged on the lock plate. A locking limiting groove and an unlocking limiting groove which are distributed up and down are formed in the side, facing the lock catch piece, of the lock hook piece, the lock catch piece is provided with a lock catch protrusion, and when the lock catch piece and the lock hook piece are in a locked state, the lock catch protrusion is driven to be clamped in the locking limiting groove in an abutting mode to form limiting fit. In the unlocking state, the lock catch protrusion is driven to abut against the interior of the unlocking limiting groove to form limiting fit, and through the limiting fit formed by the lock catch protrusion and the unlocking limiting groove, the lock hook piece and the lock catch piece are kept to be located at the relative positions in the unlocking state; therefore, the lock hook piece or the lock catch piece is prevented from shaking due to the influence of vibration and external force touch, and the signal detection accuracy and reliability of the detection switch are ensured.

The invention discloses a pressure-bearing quick door opening device for a medium-high pressure container. The pressure-bearing quick door opening device comprises a door locking frame, a door body, a lifting device and a safety interlocking device, an annular locking plate is arranged on the inner side of the outer end face of the door locking frame, an annular locking gap is formed between the annular locking plate and the frame body, and a notch is formed in the annular locking plate. The door body comprises a fixed part and a rotating part, the edge of the rotating part is provided with door meshing teeth corresponding to the notch, and the rotating part is connected with a second door body locking plate. The lifting device is installed on the door locking frame, and the output end of the lifting device is movably connected with the second door body locking plate through a lifting pin shaft. The safety interlocking device has three-stage protection: pressure interlocking prevents door opening when the container has pressure; the mechanical interlocking ensures that the rotating part can only move at the unlocking position through the anti-rotating body; the motion interlock prohibits the actuation of the drive mechanism when the incisor is not completely disengaged. The device is compact in structure, light in weight, capable of achieving automatic locking and unlocking, convenient to operate, capable of achieving multiple safety protection and suitable for medium-high-pressure rapid sealing occasions.