Pulling device

Abstract

The embodiment of the invention provides a pulling device which comprises a mounting platform, a lifting device and a pulling device, the mounting platform comprises a mounting base and a rotating shaft, the mounting base can ascend and descend in the first direction, and the rotating shaft is rotationally connected to the mounting base; the clamping driving mechanism comprises a rack driving assembly and a gear driving assembly, the rack driving assembly is connected to the mounting base, the gear driving assembly is connected to the rotating shaft, and the rack driving assembly is in transmission connection with the gear driving assembly; the clamping mechanism is in transmission connection with the gear driving assembly; and the self-locking mechanism is connected to the mounting seat and the rotating shaft. The pulling device is higher in reliability and simpler in process control, the failure rate of the device is reduced, the service life of the device is prolonged, the later equipment maintenance cost is reduced, the later equipment maintenance period is shortened, and the working efficiency is guaranteed.

Description

Technical Field

[0001] This application belongs to the field of air conditioning manufacturing technology, specifically relating to a pull-out device. Background Technology

[0002] Air conditioner compressors are equipped with air intake and exhaust ports. Before the compressor assembly process begins, in order to prevent contaminants such as solid particles and moisture from entering the compressor and to ensure that the internal environment of the compressor is clean and dry, rubber plugs are used to seal the air intake and exhaust ports. After the compressor is assembled, the rubber plugs are manually removed from the air intake and exhaust ports.

[0003] In related technologies, to improve compressor assembly efficiency and reduce labor costs, some manufacturers use rubber plug removal devices to replace manual operation. However, current rubber plug removal devices use a combination of multiple electrical components, resulting in complex control programs, a high failure rate, and difficulty in ensuring the efficiency of rubber plug removal. Furthermore, they increase the cost and frequency of subsequent equipment maintenance. Summary of the Invention

[0004] This application aims to provide a pulling device that at least solves the problems of low working efficiency, high maintenance costs, and long maintenance cycles caused by the complex control program of existing pulling devices.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows: This application provides a pulling device, which includes: The mounting platform includes a mounting base and a rotating shaft. The mounting base is movable up and down in a first direction, and the rotating shaft is rotatably connected to the mounting base. The clamping drive mechanism includes a rack drive assembly and a gear drive assembly. The rack drive assembly is connected to the mounting base, and the gear drive assembly is connected to the rotating shaft. The rack drive assembly and the gear drive assembly are connected in a transmission connection. A clamping mechanism, wherein the clamping mechanism is connected to the gear drive assembly in a transmission manner; And a self-locking mechanism, connected to the mounting base and the rotating shaft; During the descent of the mounting base along the first direction, the rack and pinion drive assembly approaches the target workpiece along the first direction and drives the gear drive assembly and the rotating shaft to rotate, thereby driving the clamping mechanism to clamp the target workpiece. When the clamping mechanism clamps the target workpiece, the self-locking mechanism is used to lock the rotating shaft. During the descent of the mounting base along the first direction, the clamping mechanism drives the target workpiece to move upward.

[0006] Optionally, the rack drive assembly includes a guide shaft, a vertical rack, and a compression spring. The guide shaft is movably connected to the mounting base along the first direction. The vertical rack is connected to the guide shaft on the side near the target workpiece along the first direction. The vertical rack is drively connected to the gear drive assembly. The compression spring is sleeved on the guide shaft and disposed between the mounting base and the vertical rack.

[0007] Optionally, the rack drive assembly further includes a clamping member connected to the vertical rack and extending at least partially between the vertical rack and the target workpiece, the clamping member being used to abut against the target workpiece.

[0008] Optionally, the gear drive assembly includes a first gear, which is fixedly connected to the rotating shaft and driven by the vertical rack. During the lifting and lowering of the mounting base, the vertical rack drives the first gear and the rotating shaft to rotate.

[0009] Optionally, the gear drive assembly further includes a second gear, which is fixedly connected to the rotating shaft and is kinetically connected to the clamping mechanism to drive the clamping mechanism to clamp the target workpiece or release the clamping of the target workpiece.

[0010] Optionally, the clamping mechanism includes a first clamping component and a second clamping component that are at least partially disposed opposite to each other along the second direction. At least a portion of the first clamping component is drivenly connected to the top of the gear drive component, and at least a portion of the second clamping component is drivenly connected to the bottom of the gear drive component. When the gear drive component rotates, the first clamping component and the second clamping component move closer to each other or further away from each other along the second direction, and the second direction intersects with the first direction.

[0011] Optionally, the first clamping assembly includes a first transverse rack and a first clamping part, wherein the first transverse rack is slidably connected to the mounting base along a second direction, and the first clamping part is fixedly connected to the first transverse rack; The second clamping assembly includes a second transverse rack and a second clamping part. The second transverse rack is slidably connected to the mounting base along a second direction, and the second clamping part is fixedly connected to the second transverse rack. The first transverse rack is connected to the top of the gear drive assembly, the second transverse rack is connected to the bottom of the gear drive assembly, and the first clamping portion and the second clamping portion are at least partially disposed opposite each other along the second direction.

[0012] Optionally, the mounting base further includes a base plate, a vertical plate, a first guide rail, a first sliding member, a second guide rail, and a second sliding member. The vertical plate is connected to the base plate, the first guide rail and the second guide rail are both connected to the vertical plate and are spaced apart along the first direction, the first sliding member is slidably connected to the first guide rail along the second direction, the first transverse rack is connected to the first sliding member, the second sliding member is slidably connected to the second guide rail along the second direction, and the second transverse rack is connected to the second sliding member.

[0013] Optionally, the self-locking mechanism includes a ratchet, a pawl, and a first connecting shaft. The ratchet is fixedly connected to the rotating shaft, and the pawl is movably connected to the mounting base via the first connecting shaft. The pawl includes a locked position and an unlocked position. When the clamping mechanism clamps the target workpiece, the pawl remains in the locked position and locks the ratchet to lock the rotating shaft.

[0014] Optionally, the self-locking mechanism further includes a second connecting shaft, a third connecting shaft, and a tension spring. The pawl includes a locking end for locking the ratchet. The locking end is connected to the second connecting shaft. The end of the second connecting shaft away from the locking end is connected to the tension spring. The end of the tension spring away from the second connecting shaft is connected to the third connecting shaft. The third connecting shaft is connected to the mounting base.

[0015] Optionally, the self-locking mechanism further includes a driving member, a connecting rod, and a fourth connecting shaft. The driving member is fixedly connected to the mounting base, and the output end of the driving member is connected to the connecting rod. The pawl also includes an unlocking end, which is disposed opposite to the locking end. The unlocking end is rotatably connected to the connecting rod through the fourth connecting shaft.

[0016] Optionally, a set of the self-locking mechanisms includes a driving member, a connecting rod, and a plurality of pawls, wherein the driving member is connected to the connecting rod, and the connecting rod is rotatably connected to the plurality of pawls.

[0017] Optionally, the mounting base includes a base plate, a rotary bearing housing, a horizontal plate, and a linear bearing. The rotary bearing housing is connected to the base plate, and the horizontal plate is connected to the side of the rotary bearing housing away from the base plate along the first direction. The rotating shaft is connected to the rotary bearing housing and rotatably connected to the mounting base through the rotary bearing housing. The rack and pinion drive assembly includes a guide shaft, which at least partially rolls with the linear bearing.

[0018] Optionally, the mounting base further includes a limiter connected to at least one of the linear bearing and the cross plate. The limiter is provided with a limiting groove extending along the first direction. The guide shaft includes a shaft body and a limiting portion. The shaft body is in rolling engagement with the linear bearing, and the limiting portion extends at least partially into the limiting groove.

[0019] In this embodiment, the clamping drive mechanism includes a rack drive assembly and a gear drive assembly. The rack drive assembly is connected to the mounting base, and the gear drive assembly is connected to the rotating shaft. Since the rack drive assembly and gear drive assembly are connected in transmission, during the descent of the mounting base, the rack drive assembly connected to the mounting base can move with the mounting base, driving the gear drive assembly and the rotating shaft to rotate. This drives the clamping mechanism, which is connected in transmission to the gear drive assembly, to clamp the target workpiece. During the clamping process, a self-locking mechanism locks the rotating shaft to prevent reverse rotation, maintaining the clamping effect of the clamping mechanism on the target workpiece. The rising of the mounting base can then lift the target workpiece and complete the removal operation. In this embodiment, the removal operation of the target workpiece is achieved through the mechanical cooperation between the above-mentioned multiple mechanisms, avoiding the introduction of multiple electrical components. This mechanically driven removal device has higher reliability, simpler process control, reduced device failure rate, extended device lifespan, and reduced subsequent equipment maintenance costs and cycles, thus contributing to improved work efficiency.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of the extraction device in the embodiments of this application; Figure 2 This is a schematic diagram of the pull-out device from another angle in an embodiment of this application; Figure 3 yes Figure 1 Front view of the middle extraction device; Figure 4 yes Figure 1 Rear view of the middle extraction device; Figure 5 yes Figure 1 Left view of the middle pull-out device; Figure 6 yes Figure 1 Right view of the middle pull-out device; Figure 7 yes Figure 1 Top view of the middle extraction device; Figure 8 yes Figure 1 Bottom view of the middle extraction device; Figure 9 This is a schematic diagram of the self-locking mechanism in the locked state in the embodiments of this application; Figure 10 This is a schematic diagram of the self-locking mechanism in the unlocked state in the embodiments of this application; Figure 11 This is one of the working processes of the extraction device in the embodiments of this application; Figure 12 This is the second working process of the extraction device in the embodiments of this application; Figure 13 This is the third working process of the extraction device in the embodiments of this application; Figure 14 This is the fourth step in the operation of the extraction device in the embodiments of this application; Figure 15 This is the fifth step in the operation of the extraction device in the embodiments of this application.

[0022] Figure label: 10-Mounting platform, 11-Mounting base, 111-Base plate, 112-Vertical plate, 113-First guide rail, 114-First sliding member, 115-Second guide rail, 116-Second sliding member, 117-Rotary bearing seat, 118-Horizontal plate, 119-Linear bearing, 1110-Limiter, 1111-Limiting groove, 12-Rotating shaft, 20-Clamping drive mechanism, 21-Rack and pinion drive assembly, 211-Guide shaft, 2111-Shaft body, 2112-Limiting part, 212-Vertical rack, 213-Compression spring, 214-Clamping member, 22-Gear drive assembly, 221 - First gear, 222- Second gear, 30- Clamping mechanism, 31- First clamping assembly, 311- First transverse rack, 312- First clamping part, 32- Second clamping assembly, 321- Second transverse rack, 322- Second clamping part, 40- Self-locking mechanism, 41- Ratchet, 42- Pawl, 421- Locking end, 422- Unlocking end, 43- First connecting shaft, 44- Second connecting shaft, 45- Third connecting shaft, 46- Tension spring, 47- Driving component, 48- Connecting rod, 49- Fourth connecting shaft, 200- Target workpiece, X- First direction, Y- Second direction. Detailed Implementation

[0023] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0024] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] Air conditioner compressors are equipped with air intake and exhaust ports. Before the compressor assembly process begins, in order to prevent contaminants such as solid particles and moisture from entering the compressor and to ensure that the internal environment of the compressor is clean and dry, rubber plugs are used to seal the air intake and exhaust ports. After the compressor is assembled, the rubber plugs are manually removed from the air intake and exhaust ports.

[0028] In related technologies, to improve compressor assembly efficiency and reduce labor costs, some manufacturers use rubber plug removal devices to replace manual operation. However, current rubber plug removal devices use a combination of multiple electrical components, resulting in complex control programs, a high failure rate, and difficulty in ensuring the efficiency of rubber plug removal. Furthermore, they increase the cost and frequency of subsequent equipment maintenance.

[0029] Based on this, this application proposes a removal device to simplify its electrical structure, thereby simplifying its control program, reducing the failure rate, and improving the efficiency of rubber plug removal, reducing subsequent maintenance costs, and shortening the maintenance cycle. The removal device provided in this application embodiment will be further described in detail below with reference to the accompanying drawings and specific embodiments. For example, in this application embodiment, the first direction X is the height direction of the removal device, and the second direction Y intersects with the first direction X.

[0030] like Figures 1 to 10 As shown, the extraction device in this embodiment includes: a mounting platform 10, a clamping drive mechanism 20, a clamping mechanism 30, and a self-locking mechanism 40; wherein, the mounting platform 10 includes a mounting base 11 and a rotating shaft 12, the mounting base 11 can be raised and lowered along a first direction X, and the rotating shaft 12 is rotatably connected to the mounting base 11; the clamping drive mechanism 20 includes a rack drive assembly 21 and a gear drive assembly 22, the rack drive assembly 21 is connected to the mounting base 11, the gear drive assembly 22 is connected to the rotating shaft 12, and the rack drive assembly 21 and the gear drive assembly 22 are drive-connected; the clamping mechanism 30 is drive-connected to the gear drive assembly 22. It is used to clamp the target workpiece 200; the self-locking mechanism 40 is connected to the mounting base 11 and the rotating shaft 12; according to the extraction device provided in the embodiment of this application, during the process of the mounting base 11 descending along the first direction X, the rack drive assembly 21 approaches the target workpiece 200 along the first direction X and drives the gear drive assembly 22 and the rotating shaft 12 to rotate, so as to drive the clamping mechanism 30 to clamp the target workpiece 200. When the clamping mechanism 30 clamps the target workpiece 200, the self-locking mechanism 40 is used to lock the rotating shaft 12; during the process of the mounting base 11 rising along the first direction X, the clamping mechanism 30 drives the target workpiece 200 to move upward.

[0031] In this embodiment, the clamping drive mechanism 20 includes a rack drive assembly 21 and a gear drive assembly 22. The rack drive assembly 21 is connected to the mounting base 11, and the gear drive assembly 22 is connected to the rotating shaft 12. Since the rack drive assembly 21 and the gear drive assembly 22 are connected in transmission, during the descent of the mounting base 11, the rack drive assembly 21 connected to the mounting base 11 can move with the mounting base 11 and drive the gear drive assembly 22 and the rotating shaft 12 to rotate, thereby driving the clamping mechanism 30, which is connected in transmission to the gear drive assembly 22, to clamp the target workpiece 200. During the clamping process of the clamping mechanism 30 clamping the target workpiece 200, the self-locking mechanism 40 locks the rotating shaft 12 to prevent the rotating shaft 12 from rotating in the opposite direction, maintaining the clamping effect of the clamping mechanism 30 on the target workpiece 200. The target workpiece 200 can be lifted by the rise of the mounting base 11 and the extraction work can be completed. In this embodiment, the mechanical cooperation between the above-mentioned multiple mechanisms enables the removal of the target workpiece 200, avoiding the introduction of multiple electrical components, simplifying the electrical structure. This mechanically driven removal device has higher reliability, simpler process control, reduced device failure rate, extended device service life, reduced subsequent equipment maintenance costs and maintenance cycle, and helps to ensure work efficiency.

[0032] It should be noted that the embodiments of this application take the rubber plugs on the air intake and exhaust ports of the air conditioner compressor as an example for illustration. That is, the removal device in the embodiments of this application is used to remove the rubber plugs on the compressor after the compressor is assembled. In actual applications, the removal device can also be applied to other fields or workpieces, and this application does not make specific limitations on this.

[0033] Specifically, the mounting platform 10 includes a mounting base 11 and a rotating shaft 12. The mounting base 11 can be raised and lowered along a first direction X, and the rotating shaft 12 is rotatably connected to the mounting base 11. The mounting platform 10 serves as the basic support structure for the entire extraction device, providing a stable mounting position for other mechanisms. The ability of the mounting base 11 to be raised and lowered allows the entire extraction device to move closer to the rubber stopper along with the mounting base 11, enabling the extraction of the rubber stopper through cooperation with other mechanisms within the extraction device. The rotating shaft 12 provides a pivot for the rotation of the gear drive assembly 22 and the self-locking mechanism 40 in the clamping drive mechanism 20, allowing the gear drive assembly 22 and the self-locking mechanism 40 to rotate around it, thereby cooperating to achieve the clamping action of the clamping mechanism 30 and the locking action of the self-locking mechanism 40 on the rotating shaft 12. In specific applications, this extraction device is installed on a compressor production line, and the mounting base 11 is raised and lowered via a lifting mechanism on the production line. When the mounting base 11 needs to rise or fall, the lifting mechanism connects to the mounting base 11 and applies a downward or upward driving force to the mounting base 11.

[0034] The clamping drive mechanism 20 includes a rack drive assembly 21 and a gear drive assembly 22. The rack drive assembly 21 is connected to the mounting base 11, and the gear drive assembly 22 is connected to the rotating shaft 12. The rack drive assembly 21 and the gear drive assembly 22 are connected in a transmission connection. The clamping drive mechanism 20 in this embodiment primarily functions to drive the clamping mechanism 30 by cooperating with the rubber stopper, enabling the clamping mechanism 30 to clamp the rubber stopper for easy removal. During the lifting and lowering of the mounting base 11, the rack drive assembly 21, being connected to the mounting base 11, can directly follow the lifting and lowering of the mounting base 11 synchronously. Since the gear drive assembly 22 is connected in a transmission connection to the rack drive assembly 21, the movement of the rack drive assembly 21 can be converted into the rotation of the gear drive assembly 22. The clamping mechanism 30, connected in a transmission connection to the gear drive assembly 22, is then driven to move and clamp the rubber stopper. The transmission connection between the rack and pinion drive assembly 21 and the gear drive assembly 22 enables the conversion between linear motion and rotary motion, ensuring the stability and response speed of the clamping drive mechanism 20. Furthermore, the descent of the mounting base 11 is naturally linked with the driving action of the clamping drive mechanism 20 on the clamping mechanism 30, without the need for additional electrical components for control.

[0035] The clamping mechanism 30 is connected to the gear drive assembly 22 and, driven by the rotation of the gear drive assembly 22, moves closer to the rubber stopper. When the clamping mechanism 30 moves towards the rubber stopper and abuts against the tube wall where the rubber stopper is installed, the clamping mechanism 30 stops moving. Then, the lifting mechanism on the production line can be controlled to drive the mounting base 11 to rise as a whole. The clamping mechanism 30 also rises along with the mounting base 11, and the rubber stopper removal operation is completed during the rising process of the clamping mechanism 30. It should be noted that the removal device in this embodiment is applied to applications such as... Figure 15 The illustrated rubber stopper structure includes a generally cylindrical main body and a skirt portion connected to the top edge of the main body. The main body is used to insert into the compressor's intake or exhaust port to achieve the primary sealing function. The skirt portion extends radially outward from the main body, and its design facilitates the clamping and securing of the rubber stopper. During the removal of the rubber stopper by the removal device, the clamping mechanism 30 primarily clamps the main body, while the outwardly extending skirt portion forms a limiting fit with the clamping mechanism 30. In specific applications, the clamping mechanism 30 can be equipped with various actuators such as claws, clamps, and hooks to adapt to different rubber stopper shapes. For example, in this embodiment, the clamping mechanism 30 has claws at its end for clamping and removing the rubber stopper. In the above process, the clamping action of the clamping mechanism 30 is entirely triggered by the descent of the mounting base 11, requiring no separate control and simplifying the control procedure.

[0036] The self-locking mechanism 40 is connected to the mounting base 11 and the rotating shaft 12 to prevent the rotating shaft 12 from rotating in the opposite direction, which would cause the clamping mechanism 30 to fail in its clamping effect on the rubber plug. It is understood that since the clamping mechanism 30 is connected to the gear drive assembly 22, which is connected to the rotating shaft 12, and also connected to the rack drive assembly 21, the actual transmission relationship between the rack drive assembly 21 and the gear drive assembly 22 during the upward movement of the mounting base 11 is the reverse of the downward movement of the mounting base 11. That is, during the upward movement of the mounting base 11, the rack drive assembly 21 drives the gear drive assembly 22 and the rotating shaft 12 to rotate in the opposite direction. During this process, the clamping mechanism 30 also moves in the opposite direction and separates from the rubber plug, making it impossible to remove the rubber plug. In this embodiment, the self-locking mechanism 40 is connected to the rotating shaft 12 and used to lock the rotating shaft 12. Therefore, during the process of the mounting base 11 moving upward to remove the rubber plug, the rotating shaft 12 cannot rotate in the opposite direction, and the gear drive assembly 22 connected to the rotating shaft 12 cannot rotate either. In this way, the clamping mechanism 30, which is connected to the gear drive assembly 22, can maintain the clamping of the rubber plug, thereby successfully completing the removal of the rubber plug.

[0037] Understandably, in the process of removing the rubber plug, the removal device achieves a mechanically driven removal process through the coordinated work of various mechanisms. Compared with the bracket, which uses an electric drive mechanism to clamp and remove the plug, this mechanical structure is simpler, more reliable, and more stable, reducing the equipment failure rate, making it suitable for high-frequency operations, and improving work efficiency. In addition, when there are many electrical components in the device, the maintenance cost of the device is related to the cost of the electrical components, and the maintenance cycle is related to the delivery time of the electrical components. Such electrical components have a higher failure rate after long-term operation, which increases the later maintenance cost and extends the maintenance cycle.

[0038] Optionally, the rack and pinion drive assembly 21 includes a guide shaft 211, a vertical rack 212, and a compression spring 213. The guide shaft 211 is movably connected to the mounting base 11 along the first direction X. The vertical rack 212 is connected to the side of the guide shaft 211 near the rubber plug along the first direction X. The vertical rack 212 is connected to the gear drive assembly 22 for transmission. The compression spring 213 is sleeved on the guide shaft 211 and disposed between the mounting base 11 and the vertical rack 212.

[0039] Specifically, the guide shaft 211 is arranged along the first direction X and is movably connected to the mounting base 11. During the lifting and lowering of the mounting base 11, the guide shaft 211 can follow the mounting base 11 in the first direction X. The guide shaft 211 serves as the mounting base for the vertical rack 212, ensuring that the vertical rack 212 connected to it moves strictly in a straight line along the first direction X. At the same time, the guide shaft 211 can provide support and guidance for the compression spring 213 sleeved on it in the first direction X. The teeth of the vertical rack 212 are arranged on the side where the gear drive assembly 22 is located. When the mounting base 11 descends along the first direction X, the vertical rack 212 moves downward with the mounting base 11 and meshes with the gear drive assembly 22, transmitting its own linear motion to the gear drive assembly 22. 2. The drive gear drive assembly 22 and the rotating shaft 12 rotate, thereby driving the clamping mechanism 30 to clamp the rubber plug. The compression spring 213, as a buffer component, is set between the mounting base 11 and the vertical rack 212. When the vertical rack 212 descends to abut against the rubber plug, it can accept the pressure from the vertical rack 212 and compress it, storing elastic potential energy. The elastic restoring force of the compression spring 213 is applied in the opposite direction to the vertical rack 212, so that the vertical rack 212 can stably maintain abutment against the rubber plug, ensuring that the movement of the vertical rack 212 is accurately transmitted to the gear drive assembly 22. At the same time, the compression spring 213 can also avoid rigid impact between the rack drive assembly 21 and the gear drive assembly 22, protecting the structure of the rack drive assembly 21 and the gear drive assembly 22.

[0040] In this embodiment, the rack drive assembly 21, through the cooperation of the guide shaft 211, the vertical rack 212 and the compression spring 213, makes the rack drive assembly 21 move more smoothly, and the movement of the vertical rack 212 can be stably and efficiently converted into the rotation of the gear drive assembly 22, thereby improving the working efficiency and working quality of the extraction device.

[0041] Optionally, the rack and pinion drive assembly 21 further includes a clamping member 214 connected to the vertical rack 212 and extending at least partially between the vertical rack 212 and the rubber stopper, the clamping member 214 being used to abut against the rubber stopper.

[0042] In this embodiment, by providing a clamping member 214 connected to the vertical rack 212, the clamping member 214 can move synchronously with the vertical rack 212 during the lifting and lowering of the mounting base 11. The clamping member 214 extends at least partially between the vertical rack 212 and the rubber plug. Therefore, during the descent of the clamping member 214, it will abut against the rubber plug before the vertical rack 212, achieving pre-clamping between the rack drive assembly 21 and the rubber plug. Since the rack drive assembly 21 first abuts and clamps the rubber plug through the clamping member 214, the vertical rack 212's position can be reduced. The dimensions in the first direction X can be understood as follows: in order to ensure the rigid fit between the vertical rack 212 and the gear drive assembly 22, the vertical rack 212 is usually made of metal materials such as carbon steel or alloy steel. By reducing the size of the vertical rack 212, its weight can be reduced, thereby reducing the weight of the entire device. In addition, the clamping member 214 can be made of a material with a certain degree of flexibility, so as to provide a certain buffering force at the moment of initial contact between the clamping member 214 and the rubber stopper, and avoid damage to the device caused by rigid contact between the clamping member 214 and the rubber stopper.

[0043] Optionally, the gear drive assembly 22 includes a first gear 221, which is fixedly connected to the rotating shaft 12 and is connected to the vertical rack 212 for transmission. During the lifting and lowering of the mounting base 11, the vertical rack 212 is used to drive the first gear 221 and the rotating shaft 12 to rotate.

[0044] In this assembly, the first gear 221, as a component directly connected to the vertical rack 212 in the gear drive assembly 22, can directly mesh with the vertical rack 212 when the mounting base 11 is raised and lowered to the height of the first gear 221. This meshing generates rotation around the shaft 12. Since the shaft 12 is fixedly connected to the first gear 221, the rotation of the first gear 221 drives the shaft 12 to rotate synchronously. Thus, the linear motion of the vertical rack 212 caused by the raising and lowering of the mounting base 11 is converted into the rotational motion of the first gear 221 and the shaft 12. In practical applications, the pressure angle and module of the first gear 221 and the rack are matched to ensure that the linear motion of the vertical rack 212 is accurately converted into the rotational motion of the first gear 221, avoiding motion jamming and functional failure due to incorrect parameter design. The gear ratio can be designed to adjust the rotational speed and output torque to meet different clamping force and speed requirements.

[0045] In this embodiment of the application, by setting a first gear 221 in the gear drive assembly 22, the first gear 221 is fixedly connected to the rotating shaft 12 and is drivenly connected to the vertical rack 212, so that the gear drive assembly 22 can drive the clamping mechanism 30 connected to it to achieve the clamping effect on the rubber plug.

[0046] Optionally, the gear drive assembly 22 further includes a second gear 222, which is fixedly connected to the rotating shaft 12 and is connected to the clamping mechanism 30 for transmission, so as to drive the clamping mechanism 30 to clamp the rubber plug or release the clamping of the rubber plug.

[0047] It should be noted that the design of the second gear 222, as the second fixed gear on the rotating shaft 12, cooperates with the first gear 221 to form a two-stage transmission, realizing the flexible transmission of clamping force of the vertical rack 212 power box clamping mechanism 30. Specifically, both the second gear 222 and the first gear 221 are fixedly connected to the rotating shaft 12. During the process of the first gear 221 converting the linear motion of the vertical rack 212 into rotational motion and driving the rotating shaft 12 to rotate, the second gear 222 also rotates synchronously with the rotating shaft 12. The second gear 222 is connected to the clamping mechanism 30 through transmission, and the rotation of the second gear 222 can be converted into the linear motion of the clamping mechanism 30. In specific applications, the clamping mechanism 30 can be further designed to achieve the clamping of the rubber plug by the clamping structure. By selecting a different number of teeth than the first gear 221, the movement speed and torque of the clamping mechanism 30 can be adjusted a second time to optimize the clamping performance of the clamping mechanism 30.

[0048] In this embodiment, the first gear 221 and the second gear 222 are designed with separate functions. The first gear 221 receives input power through a transmission connection with the vertical rack 212, while the second gear 222 is responsible for outputting power through a transmission connection with the clamping mechanism 30. Thus, the number of teeth, module, and other parameters of the second gear 222 can be designed according to the torque and speed requirements of the clamping mechanism 30 without affecting the transmission relationship between the first gear 221 and the vertical rack 212. This improves the design flexibility of the gear drive assembly 22, and the first gear 221 and the second gear 222 can be flexibly set at different positions on the rotating shaft 12 according to the overall layout of the device, reducing the difficulty of system layout.

[0049] Optionally, the clamping mechanism 30 includes a first clamping component 31 and a second clamping component 32 that are at least partially disposed opposite each other along the second direction Y. At least a portion of the first clamping component 31 is drivenly connected to the top of the gear drive component 22, and at least a portion of the second clamping component 32 is drivenly connected to the bottom of the gear drive component 22. When the gear drive component 22 rotates, the first clamping component 31 and the second clamping component 32 move closer to each other or further away from each other along the second direction Y.

[0050] Specifically, at least portions of the first clamping assembly 31 and the second clamping assembly 32 are arranged opposite each other along the second direction Y (usually horizontal, perpendicular to the first direction X), together forming two points of action for the clamping mechanism 30 to clamp the rubber plug. At least a portion of the first clamping assembly 31 is drivenly connected to the top of the second gear 222 of the gear drive assembly 22, and at least a portion of the second clamping assembly 32 is drivenly connected to the bottom of the second gear 222 of the gear drive assembly 22, thereby achieving a symmetrical distribution of power. During the rotation of the second gear 222, the first clamping assembly 31 and the second clamping assembly 32 can generate linear motion in opposite directions. In specific applications, the shape and size of the clamping end of the first clamping assembly 31 can be designed according to the shape of the rubber plug to ensure reliable clamping of the rubber plug.

[0051] In this embodiment, by setting the first clamping component 31 and the second clamping component 32 on opposite sides of the gear drive component 22, the rotation of the second gear 222 can be simultaneously converted into synchronous movements of the first clamping component 31 and the second clamping component 32 in opposite directions along the second direction Y. This ensures that the rubber plug is subjected to uniform clamping force on both sides, guarantees clamping balance, and this symmetrical clamping can resist the torque that may occur during the removal process, preventing the rubber plug from rotating and slipping. In practical applications, the first clamping component 31 and the second clamping component 32 have the same stroke and amplitude, thereby maintaining the same degree of wear and extending the service life of the clamping mechanism 30.

[0052] In some optional embodiments of this application, the first clamping assembly 31 includes a first transverse rack 311 and a first clamping part 312. The first transverse rack 311 is slidably connected to the mounting base 11 along the second direction Y, and the first clamping part 312 is fixedly connected to the first transverse rack 311. The second clamping assembly 32 includes a second transverse rack 321 and a second clamping part 322. The second transverse rack 321 is slidably connected to the mounting base 11 along the second direction Y, and the second clamping part 322 is fixedly connected to the second transverse rack 321. The first transverse rack 311 is drivenly connected to the top of the gear drive assembly 22, and the second transverse rack 321 is drivenly connected to the bottom of the gear drive assembly 22. The first clamping part 312 and the second clamping part 322 are arranged opposite to each other along the second direction Y.

[0053] Specifically, the first transverse rack 311 is an upper rack and is located at the top of the second gear 222, while the second transverse rack 321 is a lower rack and is located at the bottom of the second gear 222. Both the first transverse rack 311 and the second transverse rack 321 mesh with the second gear 222. During the rotation of the second gear 222, the top and bottom of the second gear 222 have opposite directions of motion in the second direction Y, thus driving the first transverse rack 311 and the second transverse rack 321 to produce opposite motion tendencies. Figure 1In the illustrated embodiment, when the mounting base 11 descends, the vertical rack 212 moves downward until the clamping member 214 abuts against the rubber plug. The vertical rack 212 remains in the position of abutting against the rubber plug. The mounting base 11 continues to descend, the compression spring 213 is compressed, and at the same time, the first gear 221 approaches the vertical rack 212 and meshes with the vertical rack 212. The meshing of the two drives the first gear 221 to rotate clockwise, and at the same time, the second gear 222 also rotates clockwise. During this process, the top of the second gear 222 has a rightward movement tendency along the second direction Y and drives the first transverse rack 311 connected to the top of the second gear 222 to move to the right, while the bottom of the second gear 222 has a leftward movement tendency along the second direction Y and drives the second transverse rack 321 connected to the bottom of the second gear 222 to move to the left. The first clamping part 312 and the second clamping part 322 connected to the first transverse rack 311 and the second transverse rack 321 move towards each other to clamp the rubber plug located between them. After the first clamping part 312 and the second clamping part 322 clamp the rubber plug, the self-locking mechanism 40 locks the rotating shaft 12 to prevent it from reversing, and controls the lifting mechanism to raise the mounting base 11. The clamping mechanism 30 rises synchronously to pull the rubber plug out of the compressor.

[0054] In specific applications, the first transverse rack 311 and the second transverse rack 321 have the same structure and size. The teeth of the first transverse rack 311 are arranged downwards, and the teeth of the second transverse rack 321 are arranged upwards. The first clamping assembly 31 and the second clamping assembly 32 respectively include a first clamping rod and a second clamping rod arranged along the first direction X. The first clamping rod is connected to the first transverse rack 311 and has a longer length. The second clamping rod is shorter. The bottom ends of the two are located on the same horizontal plane and are respectively connected to the first clamping part 312 and the second clamping part 322. The first clamping part 312 and the second clamping part 322 have the same size and are arranged opposite to each other along the second direction Y. When the first transverse rack 311 and the second transverse rack 321 move towards or away from each other, the first clamping part 312 and the second clamping part 322 have the same movement path as the first transverse rack 311 and the second transverse rack 321, and realize the clamping or release of the rubber stopper.

[0055] In some alternative embodiments of this application, the first transverse rack 311 and the second transverse rack 321 can be replaced with pulleys or sprockets, as long as the rotational motion of the second gear 222 can be converted into the linear motion of the first clamping part 312 and the second clamping part 322.

[0056] In this embodiment, by designing the first transverse rack 311 and the second transverse rack 321 to be connected to the gear drive assembly 22 (specifically the second gear 222), the rotational motion of the gear drive assembly 22 can be converted into the opposite motion of the first transverse rack 311 and the second transverse rack 321, and the two can maintain the same displacement in magnitude and opposite direction. This allows the first clamping part 312 and the second clamping part 322 to achieve precise clamping of the rubber stopper, and the first transverse rack 311 and the second transverse rack are subjected to the same driving force, thereby ensuring the balance of the clamping force on both sides of the rubber stopper.

[0057] Optionally, the mounting base 11 further includes a base plate 111, a vertical plate 112, a first guide rail 113, a first sliding member 114, a second guide rail 115, and a second sliding member 116. The vertical plate 112 is connected to the base plate 111. The first guide rail 113 and the second guide rail 115 are both connected to the vertical plate 112 and are spaced apart along the first direction X. The first sliding member 114 is slidably connected to the first guide rail 113 along the second direction Y. The first transverse rack 311 is connected to the first sliding member 114. The second sliding member 116 is slidably connected to the second guide rail 115 along the second direction Y. The second transverse rack 321 is connected to the second sliding member 116.

[0058] Specifically, the vertical plate 112 is connected to the base plate 111 and serves as the basis for connecting the base plate 111 and the first guide rail 113. The first guide rail 113 and the second guide rail 115 are connected to the vertical plate 112 at intervals along the first direction X, and the lengths of the first guide rail 113 and the second guide rail 115 are set along the second direction Y, so as to provide high-precision, low-friction motion guidance along the second direction Y for the first sliding member 114 and the second sliding member 116. The two guide rails together determine the reference for the movement of the first clamping component 31 and the second clamping component 32 in the clamping mechanism 30. The first slider 114 and the second slider 116 are respectively engaged with the first guide rail 113 and the second guide rail 115, and can slide freely along the first guide rail 113 and the second guide rail 115. When the first transverse rack 311 and the second transverse rack 321 are respectively connected to the first slider 114 and the second slider 116, they serve as carriers connecting the guide rails and the transverse racks, so that the first transverse rack 311 and the second transverse rack 321 can achieve precise movement along the second direction Y.

[0059] In this embodiment, the sliding engagement structure of the first guide rail 113, the second guide rail 115, the first sliding member 114, and the second sliding member 116 ensures the movement accuracy of the first transverse rack 311 and the second transverse rack 321 in the second direction Y when meshing with the second gear 222, and the movement is more stable and smooth, thereby improving the movement accuracy of the first clamping part 312 and the second clamping part 322, and thus ensuring the precise clamping of the rubber plug by the first clamping part 312 and the second clamping part 322.

[0060] like Figure 9 , Figure 10 As shown, the self-locking mechanism 40 includes a ratchet 41, a pawl 42, and a first connecting shaft 43. The ratchet 41 is fixedly connected to the rotating shaft 12, and the pawl 42 is movably connected to the mounting base 11 through the first connecting shaft 43. The pawl 42 includes a locked position and an unlocked position. When the clamping mechanism 30 clamps the rubber plug, the pawl 42 remains in the locked position and locks the ratchet 41 to lock the rotating shaft 12.

[0061] It should be noted that after the clamping mechanism 30 completes the clamping action, the self-locking mechanism 40's task is to immediately and automatically lock the rotating shaft 12 to prevent the rotating shaft 12 from reversing and causing the second gear 222 to reverse, resulting in the first clamping component 31 and the second clamping component 32 of the clamping mechanism 30 moving away from each other and disengaging from the rubber plug, thus causing the rubber plug clamping to fail. Since the clamping mechanism 30 is connected to the gear drive component 22, and the gear drive component 22 is connected to the rotating shaft 12, and the gear drive component is also connected to the rack drive component 21, during the process of the mounting base 11 rising, the actual transmission relationship between the rack drive component 21 and the gear drive component 22 is the reverse process of the mounting base 11 descending. That is, during the process of the mounting base 11 rising, the rack drive component 21 will drive the gear drive component 22 and the rotating shaft 12 to rotate in the opposite direction. During this process, the clamping mechanism 30 will also generate a reverse movement and separate from the rubber plug, making it impossible to remove the rubber plug. Specifically, the ratchet 41 is fixedly connected to the rotating shaft 12, and the pawl 42 is connected to the mounting base 11. When the clamping mechanism 30 clamps the rubber plug, the pawl is controlled to be in the locked position, which locks the ratchet 41 and prevents the ratchet 41 from rotating. In this way, the rotation of the rotating shaft 12 connected to the ratchet 41 is restricted, thereby avoiding the clamping failure of the clamping mechanism 30 on the rubber plug caused by the reverse rotation of the rotating shaft 12.

[0062] In this embodiment, the self-locking mechanism 40 achieves self-locking of the rotating shaft 12 through the cooperation of the ratchet 41 and the pawl 42. This mechanical self-locking structure has a fast response speed and reliable locking effect, so that the clamping mechanism 30 can reliably pull out the rubber plug.

[0063] In specific applications, the ratchet 41 is equipped with unidirectionally inclined ratchet teeth. The inclination direction of the ratchet teeth can be designed according to the clamping process, which will not be elaborated here. The pawl 42 is rotatably connected to the mounting base 11 via the first connecting shaft 43 to switch between an unlocked position and a locked position. The unlocked position refers to the locking end 421 of the pawl 42 disengaging from the ratchet teeth of the ratchet 41, and the locked position is the locking end 421 of the pawl 42 engaging with the ratchet teeth of the ratchet 41.

[0064] Optionally, the self-locking mechanism 40 further includes a second connecting shaft 44, a third connecting shaft 45, and a tension spring 46. The pawl 42 includes a locking end 421 for locking the ratchet 41. The locking end 421 is connected to the second connecting shaft 44. The end of the second connecting shaft 44 away from the locking end 421 is connected to the tension spring 46. The end of the tension spring 46 away from the second connecting shaft 44 is connected to the third connecting shaft 45. The third connecting shaft 45 is connected to the mounting base 11.

[0065] In this embodiment, the second connecting shaft 44, the third connecting shaft 45, and the tension spring 46 cooperate with the pawl 42, allowing the self-locking mechanism 40 to generate a greater locking force at the locking end 421 of the pawl 42 with only a small spring force from the tension spring 46. The tension direction of the tension spring 46 ensures that the locking end 421 of the pawl 42 is always maintained or facing the locked position, thus maintaining the self-locking mechanism 40 in a constantly locked state. During tooling use, as long as the tension spring 46 does not fail, it provides an elastic restoring force towards the locking position for the locking end 421 of the pawl 42, ensuring the initiative and effectiveness of locking the ratchet 41. The locking force can be designed by selecting the tension spring 46. Specifically, the stiffness of the tension spring 46 should not be too large, otherwise the unlocking force will be too great; nor should it be too small, otherwise the provided locking force will be insufficient. In practical applications, it can be designed according to needs.

[0066] Optionally, the self-locking mechanism 40 further includes a drive member 47, a connecting rod 48, and a fourth connecting shaft 49. The drive member 47 is fixedly connected to the mounting base 11, and the output end of the drive member 47 is connected to the connecting rod 48. The pawl 42 also includes an unlocking end 422, which is disposed opposite to the locking end 421. The unlocking end 422 is rotatably connected to the connecting rod 48 through the fourth connecting shaft 49.

[0067] Understandably, by introducing the drive component 47 and the connecting rod 48, the self-locking mechanism 40 achieves an automated unlocking process, which is simpler and saves labor costs. Moreover, the automated unlocking operation can be automatically triggered by the clamping mechanism 30 after clamping the rubber plug, which improves the reliability of locking the rotating shaft 12.

[0068] The driving component 47, acting as a driving source, is fixedly connected to the base plate 111, providing driving force for the connecting rod 48 to move in the first direction X. The connecting rod 48 can transmit the motion from the output end of the driving component 47 to the unlocking end 422 of the pawl 42 via the fourth connecting shaft 49. It should be noted that the intermediate region between the locking end 421 and the unlocking end 422 of the pawl 42 is rotatably connected to the horizontal plate 118 of the mounting base 11 via the first connecting shaft 43. During the operation of the driving component 47, the output end of the driving component 47 drives the connecting rod 48 to rise and fall, thereby driving the unlocking end 422 of the pawl 42 to rise and fall. The locking end 421 at the other end of the pawl 42 rises and falls in the opposite direction to the unlocking end 422. For example, in... Figure 9 In the illustrated extraction device, when the unlocking end 422 rises, the pawl 42 rotates clockwise around the first connecting shaft 43, and the locking end 421 descends, locking the ratchet 41 and the rotating shaft 12 by moving the ratchet teeth toward the ratchet 41; Figure 10 In the extraction device shown, when the unlocking end 422 descends, the pawl 42 rotates counterclockwise around the first connecting shaft 43, and the locking end 421 rises to disengage from the ratchet teeth of the ratchet 41 and unlock the ratchet 41 and the rotating shaft 12.

[0069] In specific applications, the driving component 47 can be selected from cylinders, electric push rods, servo motors, etc. In the example embodiment of this application, the driving component 47 is a cylinder. The cylinder includes a fixed end and a movable end along the first direction X. The fixed end is connected to the base plate 111, and the movable end is connected to the connecting rod 48. The cylinder can move the connecting rod 48 along the first direction X by extending and retracting, thereby realizing the locking and unlocking of the self-locking mechanism 40.

[0070] Optionally, a set of self-locking mechanisms 40 includes a drive member 47, a connecting rod 48, and a plurality of pawls 42, wherein the drive member 47 is connected to the connecting rod 48, and the connecting rod 48 is rotatably connected to the plurality of pawls 42.

[0071] In this embodiment, a set of self-locking mechanisms 40 includes two pawls 42, each corresponding to a ratchet 41. Correspondingly, there are two sets of clamping drive mechanisms 20 and clamping mechanisms 30. By reusing the drive member 47 and the connecting rod 48, the extraction device can simultaneously extract multiple rubber plugs, making the extraction of multiple rubber plugs more synchronized and efficient. At the same time, it simplifies the structure of the extraction device and saves energy by avoiding the need for redundant drive members 47.

[0072] Optionally, the mounting base 11 includes a base plate 111, a rotary bearing housing 117, a horizontal plate 118, and a linear bearing 119. The rotary bearing housing 117 is connected to the base plate 111, the horizontal plate 118 is connected to the side of the rotary bearing housing 117 away from the base plate 111 along the first direction X, the rotating shaft 12 is connected to the rotary bearing housing 117 and is rotatably connected to the mounting base 11 through the rotary bearing housing 117, and the rack and pinion drive assembly 21 includes a guide shaft 211, which at least partially rolls with the linear bearing 119.

[0073] In this embodiment, the linear bearing 119 provides stable guidance and positioning for the movement of the guide shaft 211 along the first direction X, and further restricts the vertical rack 212 to move only along the first direction X, limiting the swing and offset of the vertical rack 212 in other directions, making the transmission between the vertical rack 212 and the first gear 221 more efficient; the design of the rotary bearing seat 117 ensures the flexibility and smoothness of the rotation of the rotating shaft 12, indirectly improving the stability of the movement of the clamping mechanism 30 and avoiding jamming of the movement stroke.

[0074] The fit between the rotary bearing housing 117 and the rotating shaft 12, and the fit between the linear bearing 119 and the guide shaft 211 are existing technologies and can be referred to in this application. Therefore, this application will not elaborate further.

[0075] Optionally, the mounting base 11 further includes a limiter 1110, which is connected to at least one of the linear bearing 119 and the cross plate 118. The limiter 1110 is provided with a limiting groove 1111 extending in the first direction X. The guide shaft 211 includes a shaft body 2111 and a limiting part 2112. The shaft body 2111 is in rolling engagement with the linear bearing 119, and the limiting part 2112 extends at least partially into the limiting groove 1111.

[0076] like Figure 4 , Figure 5 As shown, the limiter 1110 includes two opposing limit plates. A limit groove 1111 is formed on the limit plate along the first direction X. The limit groove 1111 is a through groove. The guide shaft 211 is at least partially located between the two limit plates. The shaft body 2111 of the guide shaft 211 is in rolling engagement with the linear bearing 119 along the first direction X. The limiting part 2112 of the guide shaft 211 is a lug extending radially outward along the guide shaft 211. The two limiting parts 2112 extend into the limit grooves 1111 on the two limit plates respectively. During the movement of the shaft body 2111 along the first direction X, the two limiting parts 2112 move along the first direction X in the limit grooves 1111. When the limiting part 2112 contacts the top of the limit groove 1111, the movement of the guide shaft 211 is restricted.

[0077] In this embodiment, by setting a limiter 1110, the movement of the guide shaft 211 can be restricted, preventing the guide shaft 211 from moving excessively upward or downward and disengaging from the safety formation, which could lead to damage to the device. At the same time, when the limiting part 2112 extends into the limiting groove 1111, it can also prevent the guide shaft 211 from rotating arbitrarily around its axis, which could cause the vertical rack 212 to fail to mesh with the first gear 221, further ensuring the reliability of the clamping drive mechanism 20.

[0078] The following is combined with Figures 11 to 15 The working process of the extraction device in the embodiments of this application is illustrated by way of example: like Figure 11 As shown, the device is in the standby state, keeping the cylinder moving end in the retracted state. At this time, the pawl 42 is in the unlocked position, the ratchet 41 and the rotating shaft 12 can rotate, the clamping part 214 does not contact the rubber plug, and the vertical rack 212 does not contact the first gear 221. like Figure 12 As shown, the external lifting mechanism drives the mounting base 11 to move toward the rubber stopper, so that the clamping member 214 contacts the rubber stopper and continuously provides downward driving force. The clamping member 214 always remains in contact with the rubber stopper, the vertical rack 212 remains in its current position, and the mounting base 11 continues to move downward against the elastic force of the compression spring 213. The first gear 221 moves downward toward the vertical rack 212, but has not yet meshed with the vertical rack 212. At this time, the rotating shaft 12 has not yet rotated, so the first clamping assembly 31 and the second clamping assembly 32 have not started working. like Figure 13 As shown, the external lifting mechanism continues to provide downward driving force to the mounting base 11, causing the rotating shaft 12 to drive the first gear 221 to continue downward. The vertical rack 212 contacts the first gear 221, and the two mesh together to drive the rotating shaft 12 to rotate. At the same time, it drives the second gear 222 to rotate, causing the first transverse rack 311 and the second transverse rack 321 to move towards each other. That is, the first clamping assembly 31 and the second clamping assembly 32 move towards the rubber stopper at the same time until the first clamping assembly 31 and the second clamping assembly 32 contact the tube wall outside the rubber stopper and then stop. like Figure 14 As shown, the external lifting mechanism drives the mounting base 11 to move upward, the clamping member 214 separates from the rubber plug, and the first clamping assembly 31 and the second clamping assembly 32 move upward and gradually approach and contact the skirt of the rubber plug; during this process, the first clamping assembly 31 and the second clamping assembly 32 clamp the rubber plug, while the locking end 421 of the pawl 42 is in the locked position, and the rotating shaft 12 is in a self-locking state under the action of the ratchet 41 and the pawl 42, preventing the first clamping assembly 31 and the second clamping assembly 32 from having reverse displacement; like Figure 15As shown, the external lifting mechanism continues to drive the mounting base 11 to move upward, and the rubber plug is separated from the tube wall under the clamping action of the first clamping component 31 and the second clamping component 32, thus completing the removal of the rubber plug.

[0079] It should be noted that during the above-mentioned process of removing the rubber plug, the moving end of the cylinder remains as follows: Figure 9 In the extended state shown, the locking end 421 of the pawl 42 is always in contact with the ratchet 41 under the action of the tension spring 46, so that the ratchet 41 can only rotate in one direction. After the rubber plug is removed, the movable end of the cylinder retracts and drives the connecting rod 48 to move downward, which drives the unlocking end 422 of the pawl 42 to descend. At the same time, the locking end 421 disengages from the ratchet 41, so that the ratchet 41 loses its self-locking force, and the rotating shaft 12 can rotate freely. At this time, under the action of the compression spring 213, the vertical rack 212 and the clamping member 214 move downward, which drives the first gear 221 and the rotating shaft 12 to rotate, further driving the first transverse rack 311 and the second transverse rack 321 to move in opposite directions, so that the first clamping assembly 31 and the second clamping assembly 32 leave the rubber plug at the same time. The rubber plug loses the clamping force of the first clamping assembly 31 and the second clamping assembly 32 and falls into the rubber plug recycling box below, completing the entire process of removing the rubber plug.

[0080] In summary, the extraction device provided in this application embodiment has at least the following advantages: In this embodiment, the clamping drive mechanism 20 includes a rack drive assembly 21 and a gear drive assembly 22. The rack drive assembly 21 is connected to the mounting base 11, and the gear drive assembly 22 is connected to the rotating shaft 12. Since the rack drive assembly 21 and the gear drive assembly 22 are connected in transmission, during the descent of the mounting base 11, the rack drive assembly 21 connected to the mounting base 11 can move with the mounting base 11 and drive the gear drive assembly 22 and the rotating shaft 12 to rotate, thereby driving the clamping mechanism 30, which is connected in transmission to the gear drive assembly 22, to clamp the target workpiece 200. During the clamping process of the clamping mechanism 30 clamping the target workpiece 200, the self-locking mechanism 40 locks the rotating shaft 12 to prevent the rotating shaft 12 from rotating in the opposite direction, maintaining the clamping effect of the clamping mechanism 30 on the target workpiece 200. The target workpiece 200 can be lifted by the rise of the mounting base 11 and the extraction work can be completed. In this embodiment, the mechanical cooperation between the above-mentioned multiple mechanisms enables the removal of the target workpiece 200, avoiding the introduction of multiple electrical components. This mechanically driven removal device has higher reliability, simpler process control, reduced device failure rate, extended device service life, reduced subsequent equipment maintenance costs and maintenance cycle, and helps to ensure work efficiency.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0082] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A pulling device, characterized in that, The extraction device includes: The mounting platform includes a mounting base and a rotating shaft. The mounting base is movable up and down in a first direction, and the rotating shaft is rotatably connected to the mounting base. The clamping drive mechanism includes a rack drive assembly and a gear drive assembly. The rack drive assembly is connected to the mounting base, and the gear drive assembly is connected to the rotating shaft. The rack drive assembly and the gear drive assembly are connected in a transmission connection. A clamping mechanism, wherein the clamping mechanism is connected to the gear drive assembly in a transmission manner; And a self-locking mechanism, connected to the mounting base and the rotating shaft; During the descent of the mounting base along the first direction, the rack and pinion drive assembly approaches the target workpiece along the first direction and drives the gear drive assembly and the rotating shaft to rotate, thereby driving the clamping mechanism to clamp the target workpiece. When the clamping mechanism clamps the target workpiece, the self-locking mechanism is used to lock the rotating shaft. During the descent of the mounting base along the first direction, the clamping mechanism drives the target workpiece to move upward.

2. The extraction device according to claim 1, characterized in that, The rack and pinion drive assembly includes a guide shaft, a vertical rack, and a compression spring. The guide shaft is movably connected to the mounting base along the first direction. The vertical rack is connected to the guide shaft on the side near the target workpiece along the first direction. The vertical rack is drively connected to the gear drive assembly. The compression spring is sleeved on the guide shaft and disposed between the mounting base and the vertical rack.

3. The extraction device according to claim 2, characterized in that, The rack and pinion drive assembly further includes a clamping member connected to the vertical rack and extending at least partially between the vertical rack and the target workpiece, the clamping member being used to abut against the target workpiece.

4. The extraction device according to claim 2, characterized in that, The gear drive assembly includes a first gear, which is fixedly connected to the rotating shaft and is connected to the vertical rack. During the lifting and lowering of the mounting base, the vertical rack drives the first gear and the rotating shaft to rotate.

5. The extraction device according to claim 2, characterized in that, The gear drive assembly further includes a second gear, which is fixedly connected to the rotating shaft and is kinetically connected to the clamping mechanism to drive the clamping mechanism to clamp the target workpiece or release the clamping of the target workpiece.

6. The extraction device according to claim 1, characterized in that, The clamping mechanism includes a first clamping component and a second clamping component that are at least partially disposed opposite to each other along a second direction. At least a portion of the first clamping component is driven to the top of the gear drive component, and at least a portion of the second clamping component is driven to the bottom of the gear drive component. When the gear drive component rotates, the first clamping component and the second clamping component move closer to each other or further away from each other along the second direction, and the second direction intersects with the first direction.

7. The extraction device according to claim 6, characterized in that, The first clamping assembly includes a first transverse rack and a first clamping part. The first transverse rack is slidably connected to the mounting base along a second direction, and the first clamping part is fixedly connected to the first transverse rack. The second clamping assembly includes a second transverse rack and a second clamping part. The second transverse rack is slidably connected to the mounting base along the second direction, and the second clamping part is fixedly connected to the second transverse rack. The first transverse rack is connected to the top of the gear drive assembly, the second transverse rack is connected to the bottom of the gear drive assembly, and the first clamping portion and the second clamping portion are at least partially disposed opposite each other along the second direction.

8. The extraction device according to claim 7, characterized in that, The mounting base further includes a base plate, a vertical plate, a first guide rail, a first sliding member, a second guide rail, and a second sliding member. The vertical plate is connected to the base plate. The first guide rail and the second guide rail are both connected to the vertical plate and are spaced apart along the first direction. The first sliding member is slidably connected to the first guide rail along the second direction. The first transverse rack is connected to the first sliding member. The second sliding member is slidably connected to the second guide rail along the second direction. The second transverse rack is connected to the second sliding member.

9. The extraction device according to claim 1, characterized in that, The self-locking mechanism includes a ratchet, a pawl, and a first connecting shaft. The ratchet is fixedly connected to the rotating shaft, and the pawl is movably connected to the mounting base via the first connecting shaft. The pawl has a locked position and an unlocked position. When the clamping mechanism clamps the target workpiece, the pawl remains in the locked position and locks the ratchet to lock the rotating shaft.

10. The extraction device according to claim 9, characterized in that, The self-locking mechanism further includes a second connecting shaft, a third connecting shaft, and a tension spring. The pawl includes a locking end for locking the ratchet. The locking end is connected to the second connecting shaft. The end of the second connecting shaft away from the locking end is connected to the tension spring. The end of the tension spring away from the second connecting shaft is connected to the third connecting shaft. The third connecting shaft is connected to the mounting base.

11. The extraction device according to claim 10, characterized in that, The self-locking mechanism further includes a driving component, a connecting rod, and a fourth connecting shaft. The driving component is fixedly connected to the mounting base, and the output end of the driving component is connected to the connecting rod. The pawl also includes an unlocking end, which is disposed opposite to the locking end. The unlocking end is rotatably connected to the connecting rod through the fourth connecting shaft.

12. The extraction device according to claim 11, characterized in that, A set of the self-locking mechanisms includes a driving member, a connecting rod, and a plurality of pawls, wherein the driving member is connected to the connecting rod, and the connecting rod is rotatably connected to the plurality of pawls.

13. The extraction device according to any one of claims 1 to 12, characterized in that, The mounting base includes a base plate, a rotary bearing housing, a horizontal plate, and a linear bearing. The rotary bearing housing is connected to the base plate, and the horizontal plate is connected to the side of the rotary bearing housing away from the base plate along the first direction. The rotating shaft is connected to the rotary bearing housing and is rotatably connected to the mounting base through the rotary bearing housing. The rack and pinion drive assembly includes a guide shaft, and the guide shaft at least partially rolls with the linear bearing.

14. The extraction device according to claim 13, characterized in that, The mounting base further includes a limiter connected to at least one of the linear bearing and the cross plate. The limiter is provided with a limiting groove extending along the first direction. The guide shaft includes a shaft body and a limiting part. The shaft body is in rolling engagement with the linear bearing, and the limiting part extends at least partially into the limiting groove.

Images