Press-to-Stay Self-Locking Device

Abstract

This application discloses a self-locking device for pressing into position, comprising a device body, a self-locking component, and a linkage component. The device body forms a limiting channel with at least one movable through slot communicating with each of the movable through slots. The self-locking component includes a passive rod, a limiting block, a locking shaft, and a stop arm. The passive rod moves within the limiting channel, the limiting block is connected to the passive rod, and at least a portion of the device body is located on the moving path of the limiting block. The locking shaft is movably connected to the movable through slot through the passive rod. The stop arm rotates around the device body and forms an oblique through slot for the locking shaft to move. The linkage component drives the limiting block by force, causing the stop arm to move relative to the locking shaft through the oblique through slot and rotate, thereby switching between the locked and unlocked states of the self-locking device for pressing into position.

Description

Technical Field

[0001] This application relates to the field of industrial production equipment technology, specifically to a self-locking device for pressing and holding in place. Background Technology

[0002] Currently, transfer mechanisms are common devices that can efficiently and accurately transport and position workpieces in automated production lines. The separation mechanism of most transfer mechanisms can significantly improve production efficiency, but this separation mechanism requires an external power source.

[0003] It is known that the separation mechanism of the transfer mechanism mostly relies on an external power source, either pneumatic or electrical. However, these external power sources are easily affected by complex working environmental factors, leading to performance degradation or malfunction. For example, in a humid environment, an electrical external power source may become damp and short-circuit, while the pneumatic system of a pneumatic external power source may have its air pressure stability affected by moisture ingress. Therefore, these external power sources typically require regular maintenance of their pneumatic or electrical systems, which increases both maintenance workload and downtime costs.

[0004] Furthermore, in some chemical production workshops containing large quantities of flammable and explosive substances, a leak in the external power source, whether gas or electricity, can easily lead to a serious accident. Utility Model Content

[0005] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a self-locking device for pressing into position, wherein the self-locking device for pressing into position comprises:

[0006] The device body forms at least one movable channel and a limiting channel communicating with each of the movable channels, the length direction of the limiting channel being parallel to the length direction of each of the movable channels;

[0007] The self-locking assembly includes a passive rod, a limiting block, a locking shaft, and a stop arm. The passive rod is connected to the device body and moves along the length of the moving through groove within the limiting channel. The passive rod has a first end and a second end opposite to the first end, respectively. The limiting block is connected to the first end of the passive rod and is used to drive the passive rod to move. At least a portion of the device body is located on the moving path of the limiting block. The locking shaft is detachably connected in a through-type manner. At the second end of the passive rod, and the locking shaft is installed in at least one of the movable through slots of the device body, and the locking shaft is driven by the passive rod to move in the movable through slot, the stop arm rotates around the device body, and the stop arm also forms an oblique through slot, and the locking shaft is also movably connected to the oblique through slot of the stop arm, and when the locking shaft moves in the movable through slot, the locking shaft moves in the oblique through slot along the length direction of the oblique through slot, and drives the stop arm to rotate relative to the device body;

[0008] The self-locking component has a locked state and an unlocked state. In the locked state, the limiting block moves the passive rod while abutting against the device body, and the direction of movement of the locking shaft in the moving through groove forms an angle with the direction of movement of the locking shaft in the oblique through groove. In the unlocked state, the limiting block moves the passive rod while moving away from the device body, and the direction of movement of the locking shaft in the moving through groove also forms an angle with the direction of movement of the locking shaft in the oblique through groove.

[0009] A linkage component is provided, wherein the limiting block is connected to the linkage component, and the linkage component is movably mounted on the device body. When the linkage component moves relative to the device body, it can drive the limiting block and the passive rod to move relative to the device body, thereby controlling the self-locking component to switch between the locked state and the unlocked state.

[0010] According to one embodiment of this application, the number of the movable channels is set to two, and the two movable channels are symmetrically arranged with respect to the limiting channel, and the locking shaft is movably connected to the two movable channels in a manner that passes through the limiting channel.

[0011] According to one embodiment of this application, the passive rod also forms a groove at the first end. The groove is integrally recessed axially from the outer wall of the passive rod, and the groove is generally annular around the axial direction of the passive rod. One end of the limiting block extends toward the groove of the passive rod to form a pair of engaging portions. The two engaging portions are arranged opposite to each other and spaced apart to form a one-way through groove between them. The size of the one-way through groove is set to match the inner diameter of the cross section of the groove.

[0012] According to one embodiment of this application, the passive rod also forms a rotation space along the rotation path of the stop arm at the position of the second end, and the device body also forms an active space along the rotation path of the stop arm. The second end of the passive rod is disposed in the rotation space so that the rotation space is connected to the active space, and the active space is also connected to a port of the limiting channel away from the limiting block. The stop arm is disposed in the rotation space of the passive rod.

[0013] According to one embodiment of this application, the self-locking assembly further includes a feed shaft, which is rotatably connected to the device body, and the stop arm is connected to the feed shaft in such a way that it is passed through the feed shaft.

[0014] According to one embodiment of this application, the linkage component includes a first linkage rod, a second linkage rod, and a rolling element. The first linkage rod and the second linkage rod are movably connected to the device body. The outer periphery of the first linkage rod is provided with a first tooth along the axial direction, and the outer periphery of the second linkage rod is provided with a second tooth along the axial direction. The rolling element is rotatably connected to the device body and located between the first linkage rod and the second linkage rod. The rolling element can also synchronously engage with the first tooth and the second tooth in a rolling manner.

[0015] According to one embodiment of this application, the device body further forms a pair of transfer channels and a rotating groove disposed between the two transfer channels and communicating with both transfer channels. The two transfer channels are kept axially parallel, and the first linkage rod and the second linkage rod are respectively disposed in the two transfer channels. The first tooth of the first linkage rod is at least partially located in the rotating groove, and the second tooth of the second linkage rod is at least partially located in the rotating groove and is opposite to the first tooth. The rolling element is disposed in the rotating groove and is engaged with the first tooth and the second tooth located in the rotating groove, respectively.

[0016] According to one embodiment of this application, the axial length of the first linkage rod is set to be greater than the axial length of one of the supply channels, and a first force-bearing portion is formed at one end of the first linkage rod located outside one of the supply channels. The first force-bearing portion is integrally formed extending outward along the radial direction of the first linkage rod. The axial length of the second linkage rod is set to be greater than the axial length of one of the supply channels, and a second force-bearing portion is formed at one end of the second linkage rod located outside one of the supply channels and close to the first force-bearing portion. The second force-bearing portion is integrally formed extending outward along the radial direction of the second linkage rod.

[0017] According to one embodiment of this application, the limiting block is provided with two limiting portions at intervals at the end away from the passive rod, and a limiting opening is formed between the two limiting portions. The size of the limiting opening is set to be adapted to the size of the first linkage rod. The limiting block also forms at least one connecting hole that passes through both limiting portions simultaneously. The position of each connecting hole is set to be away from the limiting opening.

[0018] According to one embodiment of this application, the stop arm has symmetrical protrusions on opposite sides, and the stop arm is rotatably connected to the device body through two of the protrusions. Attached Figure Description

[0019] Figure 1 A perspective view of the self-locking device for holding in place as described in this application is shown at one angle.

[0020] Figure 2 This is a perspective view of the self-locking device for holding in place as described in this application from another angle.

[0021] Figure 3 A cross-sectional view of the self-locking device for holding in place as described in this application is shown. Figure 1 .

[0022] Figure 4 A cross-sectional view of the self-locking device for holding in place as described in this application is shown. Figure 2 .

[0023] Figure 5 A cross-sectional view of the self-locking device for holding in place as described in this application is shown. Figure 3

[0024] Figure 6 A cross-sectional view of the self-locking device for holding in place as described in this application is shown. Figure 4 .

[0025] Figure 7 An exploded view of the self-locking device for holding in place as described in this application is shown. Detailed Implementation

[0026] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0027] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, the above terms should not be construed as limitations on this application.

[0028] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0029] refer to Figures 1 to 6 A preferred embodiment of the self-locking device according to this application will be described in detail below. The self-locking device includes a device body 10, a self-locking component 20 and a linkage component 30, wherein the device body 10 forms at least one movable through groove 101.

[0030] Specifically, the self-locking assembly 20 includes a passive rod 21, a limiting block 22, a locking shaft 23, and a stop arm 24. The passive rod 21 is movably connected to the device body 10 along the length direction of the movable through slot 101, and the passive rod 21 has a first end 211 and a second end 212 opposite to the first end 211, respectively. The limiting block 22 is connected to the first end 211 of the passive rod 21, and the limiting block 22 is used to drive the passive rod 21 to move, and at least a portion of the device body 10 is located on the movement path of the limiting block 22.

[0031] The locking shaft 23 is detachably connected to the second end 212 of the passive rod 21 in a through manner, and the locking shaft 23 is mounted in at least one of the movable through slots 101 of the device body 10. The stop arm 24 is configured to rotate about the device body 10, and the stop arm 24 also forms an oblique through slot 2401. The locking shaft 23 is also movably connected to the oblique through slot 2401 of the stop arm 24. When the locking shaft 23 moves within the movable through slot 101, the locking shaft 23 moves along the length direction of the oblique through slot 2401 within the oblique through slot 2401, and drives the stop arm 24 to rotate relative to the device body 10.

[0032] The limiting block 22 is disposed on the linkage member 30, the linkage member 30 is movably installed on the device body 10, and when the linkage member 30 moves relative to the device body 10, it drives the limiting block 22 and the passive rod 21 to move relative to the device body 10.

[0033] Those skilled in the art will understand that when the linkage component 30 moves the limiting block 22 to bring it closer to the device body 10, the passive rod 21 is simultaneously moved to the device body 10, and the locking shaft 23 is also simultaneously moved to both the moving through groove 101 and the oblique through groove 2401, until the limiting block 22 abuts against the device body 10. At this time, if... Figure 3 and Figure 4 As shown, the locking shaft 23 moves simultaneously to one end of the moving through groove 101 and the inclined through groove 2401, so that the locking shaft 23 simultaneously abuts against the inner wall of the moving through groove 101 and the inner wall of the inclined through groove 2401, and is subjected to a reaction force, so that the stop arm 24 is restricted from rotating. In addition, the limiting block 22 abuts against the device body 10, so that the movement of the passive rod 21 is hindered, making it difficult for the stop arm 24 to move relative to the locking shaft 23 through the inclined through groove 2401 and rotate, thereby putting the self-locking device in the locked state.

[0034] When the linkage component 30 is subjected to force and moves the limiting block 22 away from the device body 10, such as Figure 6As shown, the passive rod 21 is moved synchronously by the limiting block 22 in a direction consistent with the direction of the limiting block 22 away from the device body 10, so that the locking shaft 23 is also moved synchronously in a direction parallel to the moving direction of the passive rod 21 in the moving through groove 101. At the same time, the locking shaft 23 also moves along the length direction of the inclined through groove 2401, so that the stop arm 24 moves relative to the locking shaft 23 through the inclined through groove 2401 and rotates around the device body 10, thereby making the self-locking device in the pressing position in the unlocked state.

[0035] In other words, the self-locking component 20 has a locked state and an unlocked state. When the self-locking component 20 is in the locked state, the limiting block 22 moves the passive rod 21 while abutting against the device body 10, and the direction of movement of the locking shaft 23 within the moving through groove 101 forms an angle with the direction of movement of the locking shaft 23 within the oblique through groove 2401. When the self-locking component 20 is in the unlocked state, the limiting block 22 moves the passive rod 21 away from the device body 10, and the direction of movement of the locking shaft 23 within the moving through groove 101 also forms an angle with the direction of movement of the locking shaft 23 within the oblique through groove 101. In this way, the self-locking device can be gradually locked by manual force application, replacing the external power source with pneumatic or electrical power for the separation mechanism of the transfer mechanism. At the same time, the self-locking device can switch back and forth between the locked and unlocked states by moving the passive rod 21, thus facilitating manual force application.

[0036] Preferably, the device body 10 forms a limiting channel 102 communicating with the movable through slot 101. The length direction of the limiting channel 102 is set to be parallel to the length direction of each movable through slot 101. The passive rod 21 is movably connected to the limiting channel 102 of the device body 10. The channel size of the limiting channel 102 is set to be adapted to the maximum outer diameter of the passive rod 21. That is, the passive rod 21 moves along the length direction of the limiting channel 102 by being driven by the limiting block 22.

[0037] In a preferred embodiment, the number of the movable through slots 101 is set to two, and the two movable through slots 101 are symmetrically arranged with respect to the limiting channel 102. The locking shaft 23 is movably connected to the two movable through slots 101 in a manner that passes through the limiting channel 102. Compared with the method of using one movable through slot 101 for the locking shaft 23 to move, the two movable through slots 101 can provide a more stable way for the locking shaft 23 to move.

[0038] Preferably, specifically as follows Figure 7 As shown, the passive rod 21 also forms a groove 2101 at the first end 211. The groove 2101 is integrally recessed axially from the outer wall of the passive rod 21, and the groove 2101 is generally annular around the axial direction of the passive rod 21. Correspondingly, one end of the limiting block 22 extends toward the groove 2101 of the passive rod 21 to form a pair of engaging portions 221. The two engaging portions 221 are arranged opposite to each other and spaced apart to form a one-way through groove between them. The size of the one-way through groove is set to match the inner diameter of the cross-section of the groove 2101. That is, the limiting block 22 engages with the passive rod 21 by means of the two engaging portions 221 being received in the groove 2101. Thus, when the limiting block 22 is driven to move, each of the locking portions 221 of the limiting block 22 abuts against the inner wall forming the slot 2101, so that the passive rod 21 is driven to move synchronously with the limiting block 22.

[0039] More preferably, the passive rod 21 also forms a rotation space 2102 along the rotation path of the stop arm 24 at the second end 212, and the device body 10 also forms a movable space 103 along the rotation path of the stop arm 24. The second end 212 of the passive rod 21 is disposed in the rotation space 2102, so that the rotation space 2102 is connected to the movable space 103, and the movable space 103 is also connected to a port of the limiting channel 102 away from the limiting block 22. The stop arm 24 is disposed in the rotation space 2102 of the passive rod 21, so that when the stop arm 24 is driven to rotate, the stop arm 24 rotates synchronously in the rotation space 2102 and the movable space 103.

[0040] Preferably, one end of the stop arm 24 away from the device body 10 extends in a direction away from the device body 10 to form a pair of latching protrusions 241. The two latching protrusions 241 are arranged opposite to each other and spaced apart to form a latching slot 2402 for latching operation. That is, when the self-locking device is in the locked state, the stop arm 24 used for latching operation cannot rotate.

[0041] More preferably, the self-locking assembly 20 further includes a rotating shaft 25. Preferably, the rotating shaft 25 is rotatably connected to the device body 10, and the stop arm 24 is connected to the rotating shaft 25 in such a way that it is passed through the rotating shaft 25, that is, the stop arm 24 rotates relative to the device body 10 through the rotating shaft 25.

[0042] It is worth mentioning that, as an alternative, the stop arm 24 is symmetrically provided with a protrusion on each of its opposite sides, and the stop arm 24 is rotatably connected to the device body 10 through the two protrusions.

[0043] In one embodiment, the linkage member 30 is configured as a rod-shaped structure, which is movably connected to the device body 10, and the end of the limiting block 22 away from the passive rod 21 is detachably connected to the rod-shaped structure. Thus, when the rod-shaped structure moves under axial force, the limiting block 22 is synchronously driven to move relatively closer to and away from the device body 10, and the passive rod 21 is synchronously driven to move in a direction parallel to the moving direction of the rod-shaped structure.

[0044] In another embodiment, specifically as follows Figure 6 As shown, the linkage component 30 includes a first linkage rod 31, a second linkage rod 32, and a rolling element 33. The first linkage rod 31 and the second linkage rod 32 are movably connected to the device body 10. The outer periphery of the first linkage rod 31 has a first tooth 311 axially arranged to engage with the rolling element 33, and the outer periphery of the second linkage rod 32 has a second tooth 321 axially arranged to engage with the second tooth 321. The rolling element 33 is rotatably connected to the device body 10 and located between the first linkage rod 31 and the second linkage rod 32. The rolling element 33 can also synchronously and rotatably mesh with the first tooth 311 and the second tooth 321.

[0045] It is understandable that when the first linkage rod 31 is subjected to force and moves axially, the rolling element 33 simultaneously engages with the first tooth 311 and the second tooth 321, causing the rolling element 33 to rotate while simultaneously driving the second linkage rod 32 to move in the opposite direction to the movement direction of the first linkage rod 31. Conversely, when the second linkage rod 32 is subjected to force and moves axially, the first linkage rod 31 is driven by the rolling element 33 to move in the opposite direction to the movement direction of the second linkage rod 32. At this time, the limiting block 22 moves synchronously following the first linkage rod 31.

[0046] Thus, when the first linkage rod 31 moves away from the device body 10 due to axial force, the passive rod 21 is simultaneously driven to move the locking shaft 23 along the length direction of the moving through groove 101. At the same time, the locking shaft 23 also moves along the length direction of the inclined through groove 2401, so that the self-locking device in the pressing position enters the unlocked state. At this time, the second linkage rod 32 moves in the opposite direction to the movement direction of the first linkage rod 31 by means of the rolling element 33. When it is necessary to put the self-locking device in the pressing position into the locking state, the limiting block 22 needs to be brought closer to and abut against the device body 10. That is, the second linkage rod 32 can be moved along the axial force, so that the first linkage rod 31 moves in the opposite direction to the movement direction of the second linkage rod 32, causing the limiting block 22 to move closer to and abut against the device body 10.

[0047] It is worth noting that the axial length of the first linkage rod 31 is set to be greater than the axial length of the device body 10, and the axial length of the second linkage rod 32 is also set to be greater than the axial length of the device body 10, so as to facilitate the alternating force on the first linkage rod 31 and the second linkage rod 32 to move.

[0048] To enable those skilled in the art to understand this application, the following example illustrates the linkage component 30, which includes a first linkage rod 31, a second linkage rod 32, and a rolling element 33. That is, the movement of the limiting block 22 is accomplished by the alternating force applied to the first linkage rod 31 and the second linkage rod 32.

[0049] Preferably, refer to Figure 5 The device body 10 further forms a pair of transfer channels 104 and a rotating groove 105 disposed between and communicating with both transfer channels 104. Preferably, the two transfer channels 104 are axially parallel, and the first linkage rod 31 and the second linkage rod 32 are respectively disposed in the two transfer channels 104. The first tooth 311 of the first linkage rod 31 is at least partially located in the rotating groove 105, and the second tooth 321 of the second linkage rod 32 is at least partially located in the rotating groove 105 and is opposite to the first tooth 311. The rolling element 33 is disposed in the rotating groove 105 and engages with the first tooth 311 and the second tooth 321 located in the rotating groove 105, respectively.

[0050] In other words, after the rolling element 33 is rotatably mounted in the rotating groove 105, the meshing teeth on the outer periphery of the rolling element 33 extend into the supply channel 104 and mesh with the first tooth portion 311 and the second tooth portion 321 respectively.

[0051] Preferably, the axial length of the first linkage rod 31 is set to be greater than the axial length of one of the supply channels 104, and a first force-receiving part 312 is formed at the end of the first linkage rod 31 located outside one of the supply channels 104. The first force-receiving part 312 is integrally formed extending outward along the radial direction of the first linkage rod 31. Correspondingly, the axial length of the second linkage rod 32 is set to be greater than the axial length of one of the supply channels 104, and a second force-receiving part 322 is formed at the end of the second linkage rod 32 located outside one of the supply channels 104 and close to the first force-receiving part 312. The second force-receiving part 322 is integrally formed extending outward along the radial direction of the second linkage rod 32. In this way, the force-receiving area of ​​the first linkage rod 31 and the second linkage rod 32 is increased, which reduces the pressure on the first linkage rod 31 and the second linkage rod 32 when manually pushing them, thus making it more conducive to manual force application.

[0052] More preferably, the limiting block 22 has two limiting portions 222 spaced apart at the end away from the passive rod 21, and a limiting opening 2201 is formed between the two limiting portions 222. The size of the limiting opening 2201 is set to be adapted to the size of the first linkage rod 31. The limiting block 22 also forms at least one connecting hole 2202 that passes through both limiting portions 222. The position of each connecting hole 2202 is set away from the limiting opening 2201 for connecting accessories.

[0053] It is understood that when the first linkage rod 31 is inserted into the limiting port 2201 of the limiting block 22, the corresponding connecting accessories are connected to at least one of the connecting holes 2202 so that the two limiting parts 222 are brought close to each other and the first linkage rod 31 inserted into the limiting port 2201 is fixed in a clamping manner, thereby enabling the limiting block 22 to move synchronously with the first linkage rod 31.

[0054] It is worth mentioning that each of the connection holes 2202 is configured as a threaded hole to maintain connection with the corresponding connection fitting, such as a bolt.

[0055] Preferably, the rolling element 33 is configured as a gear.

[0056] Furthermore, the self-locking device with pressure-holding also includes a cover 40. Preferably, the cover 40 includes a first cover plate 41 and a second cover plate 42, wherein the first cover plate 41 is detachably connected to the position of the device body 10 forming the movable channel 101, so as to open and close the movable channel 101. That is, the first cover plate 41 prevents foreign objects from entering the movable channel 101 by closing the part of the movable channel 101 that communicates with the outside, thereby preventing the locking shaft 23 from being interfered with in the movable channel 101.

[0057] The second cover plate 42 is detachably connected to the position of the device body 10 forming the rotating groove 105 to open and close the rotating groove 105. That is, the second cover plate 42 prevents foreign objects from entering the rotating groove 105 by closing the part of the rotating groove 105 that communicates with the outside, thereby preventing the rolling element 33 from being interfered with in the rotating groove 105.

[0058] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A self-locking device for pressing into position, characterized in that, The self-locking device for holding in place includes: The device body forms at least one movable channel and a limiting channel communicating with each of the movable channels, the length direction of the limiting channel being parallel to the length direction of each of the movable channels; The self-locking assembly includes a passive rod, a limiting block, a locking shaft, and a stop arm. The passive rod is connected to the device body and moves along the length of the moving through groove within the limiting channel. The passive rod has a first end and a second end opposite to the first end, respectively. The limiting block is connected to the first end of the passive rod and is used to drive the passive rod to move. At least a portion of the device body is located on the moving path of the limiting block. The locking shaft is detachably connected in a through-type manner. At the second end of the passive rod, and the locking shaft is installed in at least one of the movable through slots of the device body, and the locking shaft is driven by the passive rod to move in the movable through slot, the stop arm rotates around the device body, and the stop arm also forms an oblique through slot, and the locking shaft is also movably connected to the oblique through slot of the stop arm, and when the locking shaft moves in the movable through slot, the locking shaft moves in the oblique through slot along the length direction of the oblique through slot, and drives the stop arm to rotate relative to the device body; The self-locking component has a locked state and an unlocked state. In the locked state, the limiting block moves the passive rod while abutting against the device body, and the direction of movement of the locking shaft in the moving through groove forms an angle with the direction of movement of the locking shaft in the oblique through groove. In the unlocked state, the limiting block moves the passive rod while moving away from the device body, and the direction of movement of the locking shaft in the moving through groove also forms an angle with the direction of movement of the locking shaft in the oblique through groove. A linkage component is provided, wherein the limiting block is connected to the linkage component, and the linkage component is movably mounted on the device body. When the linkage component moves relative to the device body, it can drive the limiting block and the passive rod to move relative to the device body, thereby controlling the self-locking component to switch between the locked state and the unlocked state.

2. The self-locking device for pressing into place according to claim 1, characterized in that, The number of the movable channels is set to two, and the two movable channels are symmetrically arranged relative to the limiting channel, and the locking shaft is movably connected to the two movable channels in a manner that passes through the limiting channel.

3. The self-locking device for pressing into place according to claim 2, characterized in that, The passive rod also forms a groove at the first end. The groove is integrally recessed axially from the outer wall of the passive rod and tends to be annular around the axial direction of the passive rod. One end of the limiting block extends toward the groove of the passive rod to form a pair of engaging parts. The two engaging parts are arranged opposite to each other and spaced apart to form a one-way through groove between them. The size of the one-way through groove is set to match the inner diameter of the cross section of the groove.

4. The self-locking device for pressing into place according to claim 3, characterized in that, The passive rod also forms a rotation space along the rotation path of the stop arm at the second end position, and the device body also forms an active space along the rotation path of the stop arm. The second end of the passive rod is disposed in the rotation space so that the rotation space is connected to the active space. The active space is also connected to a port of the limiting channel away from the limiting block. The stop arm is disposed in the rotation space of the passive rod.

5. The self-locking device for pressing into place according to claim 4, characterized in that, The self-locking assembly also includes a feed shaft rotatably connected to the device body, and the stop arm is connected to the feed shaft in such a way that it is passed through the feed shaft.

6. The self-locking device for pressing into place according to claim 4 or 5, characterized in that, The linkage component includes a first linkage rod, a second linkage rod, and a rolling element. The first linkage rod and the second linkage rod are movably connected to the device body. The outer periphery of the first linkage rod is provided with a first tooth along the axial direction, and the outer periphery of the second linkage rod is provided with a second tooth along the axial direction. The rolling element is rotatably connected to the device body and located between the first linkage rod and the second linkage rod. The rolling element can also synchronously engage with the first tooth and the second tooth in a rolling manner.

7. The self-locking device for pressing into place according to claim 6, characterized in that, The device body also forms a pair of transfer channels and a rotating groove disposed between the two transfer channels and communicating with both transfer channels. The two transfer channels are kept axially parallel, and the first linkage rod and the second linkage rod are respectively disposed in the two transfer channels. The first tooth of the first linkage rod is at least partially located in the rotating groove, and the second tooth of the second linkage rod is at least partially located in the rotating groove and is opposite to the first tooth. The rolling element is disposed in the rotating groove and is engaged with the first tooth and the second tooth located in the rotating groove, respectively.

8. The self-locking device for pressing into place according to claim 7, characterized in that, The axial length of the first linkage rod is set to be greater than the axial length of one of the supply channels, and a first force-bearing part is formed at the end of the first linkage rod located outside one of the supply channels. The first force-bearing part is integrally formed extending outward along the radial direction of the first linkage rod. The axial length of the second linkage rod is set to be greater than the axial length of one of the supply channels, and a second force-bearing part is formed at the end of the second linkage rod located outside one of the supply channels and close to the first force-bearing part. The second force-bearing part is integrally formed extending outward along the radial direction of the second linkage rod.

9. The self-locking device for pressing into place according to claim 8, characterized in that, The limiting block has two limiting portions spaced apart at the end away from the passive rod, and a limiting opening is formed between the two limiting portions. The size of the limiting opening is adapted to the size of the first linkage rod. The limiting block also forms at least one connecting hole that passes through both limiting portions. The position of each connecting hole is set away from the limiting opening.

10. The self-locking device for pressing into place according to claim 4, characterized in that, The stop arm has symmetrical protrusions on its opposite sides, and the stop arm is rotatably connected to the device body through the two protrusions.

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