65 results about "Protective capacity" patented technology

The invention discloses a production device for automatic packaging of reels in the technical field of reel machining, which comprises a mounting frame, a fixed ring is fixedly mounted on the mounting frame through a fixed column, an outer gear ring is rotatably mounted outside the fixed ring, a positioning frame is fixedly mounted on the outer gear ring, and a movable frame is slidably connected to one side of the positioning frame. A movable roller is rotatably mounted at the end, away from the positioning frame, of the movable frame, a fixed roller is rotatably mounted on the upper surface of the fixing ring, a packaging bag is arranged between the fixed roller and the movable roller, side connecting plates are symmetrically mounted at one end of the mounting frame, and two-way threaded rods are rotatably mounted at the upper ends of the side connecting plates. According to the reel packaging device, an elastic viscous soft silica gel bag can be rapidly arranged on the surface of a reel, the protection capacity of packaging on the surface of the reel is improved, it is guaranteed that the upper edge contour and the lower edge contour of the reel can be wrapped through wrapping, and the reel packaging device is convenient to use. And comprehensive wrapping of the protection bag is ensured.

The invention discloses a sealing protection device for an intermediate joint of a cable for power transmission, relates to the technical field of sealing protection devices, solves the technical problem of sealing, and comprises a first protection cylinder and a second protection cylinder which are both internally provided with grooves. A fixing plate is fixedly installed at the corresponding ends of the first protection cylinder and the second protection cylinder, the fixing plate is fixedly installed in the groove, and sealing assemblies are arranged in the first protection cylinder and the second protection cylinder; the sealing assembly comprises a moving ring slidably mounted in the groove, an air bag is fixedly mounted on the side, away from the fixing plate, of the moving ring, an extrusion ring is fixedly mounted on the side, away from the air bag, of the moving ring, a sealing gasket is rotatably mounted at the end, away from the moving ring, of the extrusion ring, and a guide rod is slidably mounted on the moving ring in a penetrating mode. Sealing operation is facilitated, the sealing capacity of the device can be improved, and the safety protection capacity of the device can be improved.

The utility model relates to the technical field of office supply storage, in particular to an office supply storage cabinet. Comprising a cabinet body and a plurality of storage devices, the storage devices are arranged on the cabinet body in a sliding mode, a plurality of partition assemblies are arranged on the cabinet body and divide the cabinet body into a plurality of small spaces, and each partition assembly comprises a partition plate arranged on the cabinet body in a sliding mode and a threaded shaft rotationally arranged at the top of the partition plate in a threaded mode; and each storage device comprises a storage frame arranged on the cabinet body in a sliding mode, a baffle rotationally arranged on one side of the storage frame and a limiting piece arranged on one side of the storage frame in a sliding mode. Compared with the prior art, the storage cabinet has the advantages that the storage space on the cabinet body can be adjusted according to the actual size of stored articles, so that the cabinet body has higher protection capability on the stored articles, the baffle can rotate around the storage frame, the limitation of the baffle on the storage frame is reduced, and the articles are more convenient to find.

The utility model discloses a vehicle-mounted battery cover which comprises a cover body and a top cover, the cover body is formed by splicing two folded and unfolded cover plates, a vehicle-mounted battery is placed in the cover body, a buffer assembly is arranged between the vehicle-mounted battery and the cover body, and the buffer assembly comprises a plurality of buffer springs and buffer plates. According to the vehicle-mounted battery cover, the detachable top cover and the detachable cover body are arranged to protect a vehicle-mounted battery, the battery buffering protection effect can be improved under the action of the buffering assembly, the influence of collision on the battery is reduced, meanwhile, the vehicle-mounted battery cover can be used for protecting the vehicle-mounted battery, and the vehicle-mounted battery cover is convenient to use. The smoke alarm is arranged in the battery cover and can give an alarm when a battery is on fire, timely treatment is facilitated, the use safety is greatly improved, the heat preservation partition plate and the fireproof layer are arranged on the cover body, the heat preservation effect and the fireproof performance of the cover body can be improved, and the protective reinforcing plate and the reinforcing ribs are arranged, so that the strength and the protective capacity of the cover body can be improved.

The utility model discloses a simple foundation pit supporting system, and relates to the technical field of foundation pit supporting, and the simple foundation pit supporting system comprises four vertical rods, a supporting plate is arranged at the upper ends of the two vertical rods with the same height, mounting rings are arranged on the two sides of the upper end of the supporting plate and the lower ends of the two vertical rods close to the lower side, and a contact plate is fixedly arranged at one end of the supporting plate; mounting plates are arranged on the two sides of the inner end of the contact plate, and a plurality of reinforcing columns are fixedly arranged at the upper end of the mounting plate located on the upper side of one end of the contact plate. According to the simple foundation pit supporting system, through the contact plate and the reinforcing columns, the supporting effect on the inner wall of a foundation pit is enhanced, the protection capacity is enhanced, and according to the size of the foundation pit, the supporting effect on the inner wall of the foundation pit is improved; the structure of the vertical rods and the supporting plates with the required number is installed, use is convenient and fast, the vertical rods and the supporting plates are easy and convenient to install and convenient to assemble, firmness is high after installation, rapid installation can be achieved, the inner wall of the foundation pit is protected, and use convenience is further improved.

The utility model discloses a calibration test fixing device for an atmosphere data computer, which is characterized in that two sides of an upper cover plate and a lower cover plate are respectively supported by a right side plate and a left side plate to form a frame structure, at least three groups of slots are symmetrically arranged on opposite surfaces of the right side plate and the left side plate, the slots are horizontally arranged, and one end of each slot is provided with an opening for inserting a support plate; one end of each slot is open, the other end of each slot is sealed, a supporting plate is selectively inserted into each pair of slots, the supporting plates are used for placing an atmosphere data computer, and the atmosphere data computer is connected with external equipment through a test cable. The device can effectively and absolutely safely lock equipment, has enough bearing and protecting capabilities, is matched with a guide rail structure, locks a hardware plate, stably locks the equipment in a test fixing device, supports multi-equipment access test calibration, greatly saves equipment calibration test cost, reduces calibration time, and improves test efficiency. And the space utilization in the testing process can be increased.

The utility model discloses a welded pipe with detachable closed round covers at two ends, the two ends of a welded pipe body are opened and internally communicated, a plurality of fixing pieces are fixedly mounted on the inner walls of the two ends of the welded pipe body, the fixing pieces are combined into a surrounding ring shape and fixed on the inner wall of the welded pipe body, and mounting holes are formed in the centers of the fixing pieces. A sealing round cover is connected and installed on the fixing piece, and the two sides of the welded pipe body are sealed after the sealing round cover is installed. By means of the mode, the sealing round covers are installed on the inner sides of the two ends of the steel pipe body to improve the pressure resistance and the protection capacity of the steel pipe, flexible channel opening and closing selection can be provided, pressure-resistant protection is formed on the two ends of the steel pipe body after the sealing round covers are installed, and the two ends of the steel pipe body are not prone to flattening deformation. After the sealing round cover is installed, the connection between the two ends of the welded pipe body can be opened or closed through the rotary cover, the rotary cover can be opened for threading and leading wires in the welded pipe body and guiding internal parts, and the sealing operation of the welded pipe body can be achieved by closing the rotary cover.

The utility model discloses a protective support and public building construction device, including the support assembly, the support assembly includes shell, one side outer wall of shell is welded with the support plate, and both sides outer wall of the support plate is welded with a plurality of spacer pins, the support assembly is internally provided with the partition assembly, the partition assembly includes rolling shaft tube, support frame, rolling shaft tube, the support frame, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube, rolling shaft tube and rolling shaft tube. The supporting frame is installed in the center of the top end of the shell through a bolt. The top end of the winding shaft pipe is installed on the supporting frame through a bearing. When a construction site is protected and isolated, the nylon net can be fixed to the other support assembly through matching of the rubber blocks and the limiting pins, the nylon net unfolded in the process has the large length, the purpose of protecting and isolating the large-area public building construction site can be achieved, meanwhile, the mesh diameter of the nylon net is small, and the service life of the nylon net is prolonged. Short people such as children can be prevented from penetrating through the protective support, broken stones and the like generated during construction are prevented from splashing out of a construction site, and the protective capacity for the construction site is greatly improved.

The electric connector comprises a connector body, a butt joint is arranged at the upper end of the connector body, a connecting wire head is arranged at the bottom end of the connector body, a wire body is arranged at the bottom end of the connecting wire head, and a fixing ring frame head is arranged at the position, located on the periphery of the upper end of the connecting wire head, of the bottom end of the connector body. Detection air bags are arranged around the upper end of the fixing ring frame head, and a mounting notch is formed in the middle of the left side outside the fixing ring frame head. In the using process of the connector body, if the connector body is accidentally impacted by the outside, the outside of the connector body is deformed, the deformed part cannot make contact with and extrude the outside of the working device body, the protection capacity of the working device body is improved through the buffering and isolating protection performance achieved by the buffering and isolating block, and the service life of the working device body is prolonged. And the situation that the working device body is extruded and damaged due to collision in the using process is prevented.

The utility model discloses special-shaped metal workpiece processing equipment, which comprises a main body unit, a processing unit, a processing unit, a control unit and a processing unit, and is characterized in that the main body unit comprises a bearing plate and a protective frame fixedly connected to the upper surface of the bearing plate; and the extrusion collecting unit comprises a sliding groove formed in the upper surface of the bearing plate in a hollowed-out mode and a guide rail plate fixedly connected to the inner surface of the protection frame. The clamping toothed plate is used for driving the moving rod to extrude the spring, so that the spring deforms, the special-shaped metal workpiece is placed in the clamping toothed plate, elastic potential energy generated by deformation of the spring is used for pushing the clamping toothed plate to reset, and the clamping toothed plate is used for clamping the special-shaped metal workpiece. Waste generated during machining is collected through a waste groove, the waste falls into a collecting box, the waste is conveniently and uniformly collected and treated, a collecting filter plate is further used for blocking the waste, the situation that a large amount of waste enters a collecting air pump along with airflow is prevented, and the protection capacity of the collecting air pump is improved to a certain degree.

The utility model relates to the field of new energy charging pile water pumps, in particular to a pump head structure of a new energy charging system, which comprises a pump head, a pump shell main body is arranged on one side of the pump head, a detachable protective shell is arranged on the other side, far away from the pump shell main body, of the pump head, and a first output port is arranged in the middle of a pump head shell. A plurality of first installation heads are evenly arranged on the surface of the side wall of the pump head shell, through holes are formed in the first installation heads, a first output port is formed in the middle of the pump head shell, and a second output port is connected to one side of the pump head shell. The pump head used for the new energy charging system can be connected with more assemblies, the detachable protective shell is arranged, clamping can be conducted according to using requirements, the pump head can be effectively protected through the main shell and the side protective shell, the pump head is prevented from being damaged by external impact force, and therefore the protective capacity of the pump head can be effectively improved.

The invention relates to the technical field of code printing and positioning, in particular to an automobile transverse thrust rod code printing and positioning tool which comprises a workbench and a tool body arranged on the upper end face of the workbench, a code printing output end is further arranged above the workbench, and a transverse thrust rod body is placed above the tool body. The transverse thrust rod body is located below the coding output end. And the supporting assembly comprises a displacement adjusting module and a plurality of supporting modules, the displacement adjusting module is arranged on one side of the tool body, the displacement adjusting module is used for driving the supporting modules to move and adjust, the supporting modules are arranged above the displacement adjusting module, and the supporting modules are used for supporting the transverse thrust rod body. Compared with the prior art, by arranging the supporting assembly, the operation reliability and the part protection capacity are improved, and then rapid adaptation and stable supporting of transverse thrust rods of different specifications are achieved.

The utility model discloses a joint protection windproof garment which comprises a windproof garment body, and sleeves which are symmetrically distributed are arranged on the two sides of the windproof garment body. Joint protection joints are arranged at joints of the sleeves; two symmetrically-distributed through holes are formed in the sides, close to the windproof clothes body, of the joint protection joints, and binding ropes are inserted into the through holes in a penetrating mode and at least used for binding the joint protection joints at the sleeves. The joint protection joint is composed of an outer layer, a protection pad and a lining. The protective joints are located at the corresponding joints of the sleeves, when the windproof clothes are worn, the joints of a wearer can be specially protected, the joints of the wearer are prevented from being invaded by cold wind, and the protective capacity of the windproof clothes is greatly improved.

The utility model relates to the field of mining, and discloses a diamond drilling machine safety protection device which comprises an equipment box, an extension shaft is inserted into the bottom end of the interior of the equipment box through a rolling bearing, a protection device is arranged at the bottom end of the extension shaft, a driving part is arranged at the top of the extension shaft, and the protection device comprises a first rotating clamping block welded to the bottom end of the extension shaft. The bottom end of the first rotary clamping block is correspondingly clamped to a second rotary clamping block correspondingly arranged at the top of the second rotary clamping block through a plurality of evenly-formed first clamping grooves, a drill bit is inserted into the bottom end of the second rotary clamping block through a connecting key, a fixing sleeve is installed outside the drill bit through a sleeved rolling bearing, and fixing frames are welded to the two ends of the outer portion of the fixing sleeve. The drill bit has the following advantages and effects that the two fixing frames are controlled to move downwards through the two reset springs, the first rotary clamping block and the second rotary clamping block are separated from each other, the problem that a user is continuously hit by the counter-acting force of the drill bit is avoided, and the protection capacity is effectively guaranteed.

The application discloses an assembled earthen brick wall structure and a construction method thereof. The wall structure comprises a main frame, a wall body foundation, a wall body and a coping. The wall body comprises a main wall body and a buffer support layer. The main frame comprises vertical beams arranged in a vertical direction and ring beams arranged in a horizontal direction. The vertical beams and the ring beams are uniformly arranged on the inner and outer sides of the main wall body and gradually increase in thickness from top to bottom in the vertical direction. The structure is largely made of prefabricated parts and is constructed by using an assembled construction method. Compared with the existing structure and construction method of a tank chamber wall or a tank chamber protective wall, the bearing capacity of the assembled earthen brick wall structure can better adapt to the changes of the internal earthen tank pressure and the external earthen layer pressure, the bearing capacity and the protection capacity are improved, the construction efficiency is greatly improved, the construction period is shortened, the construction quality is ensured, and in addition, the construction by using the prefabricated parts reduces the emission of pollutants in the process of on-site treatment and construction of raw materials, and the environmental protection of the whole construction process is improved.

The utility model discloses a novel concrete guardrail upper and lower portal frame protective guardrail, and belongs to the field of protective guardrails, the novel concrete guardrail upper and lower portal frame protective guardrail comprises a connecting bottom plate and a concrete guardrail, the top of the connecting bottom plate is fixedly provided with a stand column, the outer side of the stand column is provided with a cross rod through bolts, and the outer side of the stand column is fixedly provided with a reinforcing rod; rotating grooves are formed in the two sides of the reinforcing rod, rotating plates are rotationally connected to the inner walls of the rotating grooves through rotating shafts, four beam columns are evenly distributed on the outer side of the cross rod and the outer side of the reinforcing rod, and a flange plate is installed on the outer side of the connecting bottom plate through bolts. The middle parts of the cross rods and the reinforcing rods do not fall, so that interference with a connecting bottom plate at the bottom of the middle stand column can be avoided, the protection capacity of the front side is enhanced by adopting a beam column encryption method, and the protection capacity of the protective guardrail is improved by adding the cross beam in the middle part and obliquely connecting the cross beam with the side stand column through the flange plate. The connecting bottom plate is adopted at the root of the stand column to ensure the deformation resistance during collision.

The utility model provides an anti-puncture safety shoe, and belongs to the technical field of machining. The anti-puncture safety shoe comprises a sole structure and a vamp structure. The shoe sole structure comprises a shoe sole, a supporting frame and an anti-puncture steel plate, the supporting frame and the anti-puncture steel plate are both fixed in the shoe sole, the supporting frame is fixed to the anti-puncture steel plate, and an anti-puncture buffering part is installed in the supporting frame; the vamp structure comprises a vamp and a steel toe cap, the steel toe cap is fixed inside a toe cap of the vamp, and the vamp is fixed with the sole. When the safety shoe is worn, the wrapping performance and the anti-puncture effect of the whole safety shoe can be improved, the protection capacity to the foot sole is improved, and the use safety is improved.

The utility model relates to the technical field of drag chains, in particular to a sealing drag chain which comprises a first enclosing piece and a second enclosing piece which form a protection space in an enclosing mode. The first locking assembly part and the second locking assembly part are correspondingly locked and assembled and are arranged on the first enclosure part and the second enclosure part in a one-to-one correspondence manner; the first sealing assembly part and the second sealing assembly part are correspondingly assembled in a sealing mode and are arranged on the first enclosing part and the second enclosing part in a one-to-one correspondence mode. And the first locking assembly part and the second locking assembly part are correspondingly locked and assembled, so that stable fitting assembly of the first enclosure part and the second enclosure part is realized. By means of cooperation of the first sealing assembly part and the second sealing assembly part, sundries are further prevented from entering the protection space through a gap between the first enclosure part and the second enclosure part, the sealing performance of the protection space is improved, and the drag chain is particularly suitable for scenes with high requirements for the sealing performance and the protection capacity; the application range of the drag chain is expanded.

The utility model relates to the field of packaging boxes, and discloses a packaging box with a gravity sensing function, which comprises an outer box, a first rotating ring, a second rotating ring, an inner box, a first limiting assembly and a second limiting assembly, floating connection between the inner box and the outer box is achieved through vertical arrangement of the first rotating ring and the second rotating ring and relative rotation among the outer box, the first rotating ring and the second rotating ring, when the outer box inclines, the inner box is automatically leveled under the action of gravity, so that objects in the inner box are prevented from inclining, and the service life of the inner box is prolonged. And the article protection capability of the equipment is improved, and the practicability of the equipment is improved.

A new type of handrail rear-mounted protective device and method, which includes a handrail, a frame installed on the lower side of the handrail, a horizontal tube with a groove installed on the frame and away from one end of the handrail, and glass. The frame includes at least two columns perpendicular to the handrail, one end of the column is provided with a crossbeam that matches the fixing groove, and the other end is provided with a mounting piece; the crossbeam is installed in the fixing groove of the handrail, and both ends of the crossbeam are provided with wall connectors connected to the walls on both sides; the cross tube is installed on the same side as the glass mounting groove of the handrail, and the glass is installed in the glass mounting groove of the handrail and the groove of the cross tube. The frame of the protective device is first installed and fixed on the building, so that the building has a certain protective ability. After the building is built and has the installation conditions, the handrail and glass can be installed, avoiding damage to the handrail and glass caused by construction. It has the characteristics of convenient and quick installation, and the handrail and glass can be installed later.

The invention relates to the technical field of pipeline pressure detection based on GIS positioning, in particular to a pipeline pressure detection device based on GIS positioning, which comprises a display part for displaying pressure data, an assembly pipe is mounted at the bottom of the display part, and a protective cover is arranged at the top of the display part and the top of the assembly pipe. Wherein the position, located at the top of the display part, of the protective cover is in a semi-spherical shape, the positions, located at the two ends of the assembly pipe, of the protective cover are in a semi-circular pipe shape, the protective cover covers the tops of the display part and the assembly pipe, the top of the display part is provided with a pressure-resistant part connected with the middle position of the bottom of the protective cover, and the pressure-resistant part comprises a retention pipe fixed to the top of the display part; the GIS positioning pipeline pressure detection device has the function of effectively protecting the GIS positioning pipeline pressure detection device through the protection cover, the protection capacity of the protection cover on the GIS positioning pipeline pressure detection device is further improved through the arrangement of the pressure resisting part, self-cleaning can be achieved, and external pressure can be reduced.

According to the technical scheme, the energy-absorbing and anti-collision modularly-spliced protective fence is characterized in that the energy-absorbing and anti-collision modularly-spliced protective fence comprises a plurality of assembled protective fence assemblies, each protective fence assembly comprises a stand column, and vertical supporting rod pieces are fixed to the two sides of each stand column through inclined rod supporting pieces correspondingly; one side of the stand column, one side of the vertical supporting rod piece and one side of the inclined rod supporting piece are jointly and fixedly provided with a guardrail plate face, a buffering structure is arranged between the guardrail plate face and the stand column, and one side of the bottom of the stand column is provided with a stopping structure used for reducing the rotating speed of the wheels. The two guardrail assemblies are connected and fixed through a connecting structure. The energy-absorbing and anti-collision modularly-spliced protective fence has good collision buffering capacity, buffering and energy absorbing can be conducted on an automobile colliding with the protective fence, the rotating speed of wheels is reduced, and the protective capacity of the protective fence can be improved to a certain degree.

The utility model relates to the technical field of turnover boxes, and discloses an electric power turnover box, including a turnover box body, the bottom of the turnover box body is provided with evenly distributed cross bearing pads and auxiliary protection round pads, and the bottom of the turnover box body is provided with snap-fit ​​support legs. The utility model is provided with cross bearing pads and auxiliary protection round pads, the inner cross angle and the top of the cross bearing pad, to store and snap fit different electric power components, the snap-fit ​​positioning card strip cooperates with the snap-fit ​​notch, and can limit the snap-fit ​​bearing separation pad, the bearing separation pad can isolate and limit electric power components of different sizes, when two turnover box bodies are stacked on each other, the snap-fit ​​support legs on the top can be snapped into the snap-fit ​​installation notch at the bottom, and the stacking can be stably performed, so that the device has partition protection capability, and plays a role in limiting and storing electric power components of different sizes, and has excellent turnover anti-seismic protection capability, and is easy to stack as a whole, and is convenient for centralized transportation and turnover.

The invention relates to the technical field of roadway supporting, and discloses a high-gas roadway supporting device which comprises a support and further comprises a supporting assembly, the supporting assembly comprises a lantern ring, the lantern ring is installed on a limiting rod in a sliding mode, an installation rod is fixedly installed on the lantern ring, a fixing disc is fixedly installed on the installation rod, and the fixing disc is fixedly installed on the support. A connecting block is fixedly mounted on the fixed disc, a connecting seat is arranged on the connecting block, a connecting sleeve is arranged on the connecting seat, a mounting plate is fixedly mounted on the connecting sleeve, and a supporting block is fixedly mounted on the mounting plate. When a special-shaped protrusion appears on the top of a roadway, a supporting block on the supporting assembly can be extruded, a spherical connecting base can deflect when extruded by external force, then the special-shaped protrusion can be adaptively supported, the problem that the special-shaped protrusion is difficult to solve through a conventional support is solved to a certain degree, large-area transformation is not conducted on the common support, and the supporting efficiency is greatly improved. And practicability and economic benefits are considered, and the protection capability is improved.

The utility model relates to the technical field of speed change rear shifting protection, and discloses a speed change rear shifting protection device which comprises a base and a solid iron rod, the base and the solid iron rod are welded and fixed, the diameter of the solid iron rod is 6-8mm, and the solid iron rod is in a solid design and a bent design. According to the utility model, the solid iron rod is bent, the base and the solid iron rod are welded and fixed, then the solid iron rod with the diameter of 6-8 millimeters is used, the bent side surface is L-shaped, the front surface is U-shaped, the height is more than 7 millimeters, the length is 100 millimeters, and the width is 50 millimeters, and the mounting hole is formed in the base. According to the wear-resistant protective device, the base is provided with the mounting holes, the mounting grooves are formed in the base, the mounting holes can be formed in the mounting fixing holes reserved in the frame, the mounting grooves can be clamped on the rear axle roller, certain wear-resistant protective work is improved under fixing of the wear-resistant protective layer, and the overall protective capacity is well improved in the working process.

The utility model discloses an anti-impact chip mounter suction nozzle structure, which particularly relates to the field of chip mounters and comprises a fixed support, and a suction head connected with a chip mounter body is arranged at the bottom of the fixed support. The buffering assembly comprises multiple sets of buffering rods and a buffering support, the multiple sets of buffering rods are arranged at the bottom of the fixing support, and the buffering support is arranged between the material suction head and the fixing support; and the protection structure is arranged on the buffering support and comprises a rubber pad and a clamping structure, the clamping structure can clamp the material suction head, and the rubber pad is arranged between the clamping structure and the buffering support. According to the utility model, on one hand, the buffer rods play a role in supporting and on the other hand, the three groups of annular structures can buffer external force in a sliding manner when the three groups of annular structures are subjected to external force, and the buffer springs arranged among the three groups of annular structures improve the protection effect on the patch; the protection structure further improves the protection capability of the patch, and the adaptability of the two groups of adjustable arc-shaped clamping pieces is good.

This invention provides a bookbinding and packaging equipment and method, including a first conveyor frame and a second conveyor frame. Two first transmission rollers are rotatably connected to the inner wall of the first conveyor frame, and the outer walls of the two first transmission rollers are fitted with the same first conveyor belt. A guide plate is fixedly connected inside the first conveyor frame, and two fixing plates are fixedly connected to the bottom of the second conveyor frame. This invention utilizes unwinding rollers, guide rods, heat-shrink film, an equipment box, a servo motor, gears, a vertical shaft, and electrically heated rollers. The electrically heated rollers heat and press both sides of the heat-shrink film to form a sealing edge, thus placing the book inside the heat-shrink film. When the book and heat-shrink film move into the heat-sealing machine, a rotating rod rotates the honeycomb plate, causing the book to flip, facilitating hot air to blow onto the heat-shrink film on the book, ensuring uniform heat shrinkage and adhesion to the book, preventing wrinkles and improving the book's protective capabilities.

The utility model discloses a PCB (printed circuit board) processing clamping jig in the technical field of circuit board processing, which comprises a first fixed base, first connecting blocks are arranged at two ends, close to each other, of the middle of the top of the first fixed base, and a plurality of connecting bottom plates are uniformly and fixedly connected to the middle of the bottom of the first fixed base. The ends, close to each other, of the multiple first connecting blocks are provided with first switching blocks. The PCB machining clamping jig has the remarkable advantages of being good in protection performance, high in protection capacity, high in fixity, optimized in switching structure and the like.

The utility model discloses an auxiliary spring device for a hydraulic bushing, which comprises a metal protective layer, two ends of the outer side of the metal protective layer are provided with wear-resistant layers, the outer ends of the wear-resistant layers are provided with rubber layers, the outer ends of the rubber layers are fixedly connected with anti-dropping bulges, the inner sides of the wear-resistant layers are fixedly connected with clamping pieces, and the clamping pieces are fixedly connected with the rubber layers. The supporting piece, the movable piece, the limiting plate and the damping spring are arranged in the rubber layer in the hydraulic bushing, so that the buffering effect can be achieved, meanwhile, the annular hydraulic belt and the capillary hydraulic belt are arranged, and the liquid injection buffering effect of the hydraulic bushing can be achieved; multiple buffering of the device is achieved, and the protection capacity of the device to the transmission bearing is improved.