Adjusting module

Abstract

The utility model discloses an adjusting module, and relates to the technical field of adjusting mechanisms, and the adjusting module comprises an adjusting sleeve assembly, an adjusting rod assembly, a rotating part, a positioning assembly and a limiting part. The adjusting rod assembly can move in the first direction relative to the adjusting sleeve assembly. The rotating piece is meshed with the adjusting rod assembly, can rotate around the second direction axis to drive the adjusting rod assembly to move, and is provided with a limiting groove; the positioning assembly is matched with the rotating part in a penetrating manner, can be embedded into the adjusting rod assembly for positioning, and also can rotate around the axis of the second direction and move along the axis of the second direction to relieve positioning; the limiting piece is arranged on the positioning assembly, moves along the limiting groove in the first rotating stage to enable the positioning assembly to be separated from the adjusting rod assembly, and pushes the rotating piece to rotate in the second rotating stage. The adjusting module is easy to operate, convenient to adjust, time-saving and labor-saving, and meanwhile smooth, accurate and safe adjustment can be ensured.

Description

Technical Field

[0001] This application relates to the field of adjustment mechanism technology, and in particular to an adjustment module. Background Technology

[0002] Existing adjustment modules typically have relatively complex structures, and their adjustment processes are often cumbersome. Especially in precision applications, the movement of the adjustment lever assembly requires unlocking before adjustment. However, current adjustment modules often require multiple steps or multiple operating components to work together during unlocking and adjustment, resulting in high operational difficulty, inconvenience, low adjustment efficiency, and a tendency for incomplete unlocking or adjustment deviations, thus affecting the overall adjustment quality. Utility Model Content

[0003] The purpose of this application is to provide an adjustment module that solves the problems of traditional adjustment modules being difficult to operate, inconvenient, and inefficient.

[0004] To achieve the above objectives, this application provides an adjustment module, comprising:

[0005] Adjustment sleeve assembly;

[0006] An adjusting rod assembly is movably fitted into an adjusting sleeve assembly for moving relative to the adjusting sleeve assembly in a first direction;

[0007] A rotating component engages with an adjusting rod assembly and is used to rotate about an axis perpendicular to the first direction to drive the adjusting rod assembly to move. The rotating component is provided with a limiting groove.

[0008] The positioning component, which is fitted and cooperates with the rotating component, is used to embed the adjusting rod assembly to position the adjusting rod assembly, and is also used to move along the axis of the second direction while rotating about the axis of the second direction to release the positioning of the adjusting rod assembly.

[0009] A limiting member is provided on the positioning assembly and is used to move along the limiting groove during the first rotation phase of the positioning assembly to push the positioning assembly away from the adjusting rod assembly. It is also used to push the rotating member to rotate during the second rotation phase of the positioning assembly.

[0010] In some embodiments, the adjusting lever assembly includes:

[0011] The adjusting rod body is equipped with a rack that meshes with the rotating part;

[0012] The positioning component is connected to the adjusting rod body and has positioning holes spaced apart along a first direction. The positioning component is embedded in the positioning holes to restrict the movement of the adjusting rod body.

[0013] In some embodiments, the positioning component includes:

[0014] The positioning pin passes through the rotating part and has an insert end that mates with the positioning hole;

[0015] The actuating element, connected to the locating pin, is used to disengage the locating pin from the locating hole.

[0016] In some embodiments, the adjustment module further includes a reset elastic element, the two ends of which abut against the actuating element and the adjustment sleeve assembly, respectively. The reset elastic element is used to provide elastic force so that the positioning pin tends to embed into the positioning hole.

[0017] In some embodiments, the rotating member is provided with a second receiving groove, and a limiting groove is provided in the second receiving groove, the second receiving groove being used to accommodate at least a portion of the actuating member.

[0018] In some embodiments, the rotating member has a toothed portion that meshes with the rack, the adjusting rod body has a first receiving groove and a recess, the first receiving groove is used to receive the toothed portion, the recess is disposed in the first receiving groove, and the positioning member is disposed in the recess.

[0019] In some embodiments, the adjustment module further includes a stop member and a stop elastic member, the stop elastic member abutting between the adjustment sleeve assembly and the stop member to provide an elastic force to the stop member, causing the stop member to tend to move closer to the rotating member;

[0020] The rotating component is provided with abutting holes evenly distributed along the circumference, and the abutting component is positioned and fitted with the abutting holes.

[0021] In some embodiments, the limiting groove includes a first spiral groove and a second spiral groove. Both the first spiral groove and the second spiral groove have a first position and a second position. The first spiral groove and the second spiral groove are connected at the first position. When the limiting member is in the first position, the positioning component is embedded in the adjusting rod assembly. When the limiting member is in the second position, the positioning component is disengaged from the adjusting rod assembly.

[0022] In some embodiments, the adjusting sleeve assembly includes a first sliding cover and a second sliding cover, which together form a sliding track, and the adjusting rod assembly slides under the guidance and limiting action of the sliding track.

[0023] In some embodiments, the second sliding cover is provided with a mounting groove and a through hole, the rotating member is installed in the mounting groove, the through hole communicates with the mounting groove in a second direction, and the positioning component passes through the through hole.

[0024] Compared to the aforementioned background technology, the adjustment module provided in this application includes an adjustment sleeve assembly, an adjustment rod assembly, a rotating member, a positioning assembly, and a limiting member. The adjustment rod assembly is movable relative to the adjustment sleeve assembly along a first direction; the rotating member engages with the adjustment rod assembly and can rotate around a second direction axis to move the adjustment rod assembly, and has a limiting groove thereon; the positioning assembly passes through and engages with the rotating member, and can be embedded in the adjustment rod assembly for positioning, and can also rotate around the second direction axis while moving along the second direction axis to release the positioning; the limiting member is located on the positioning assembly, and during a first rotation phase, it moves along the limiting groove to disengage the positioning assembly from the adjustment rod assembly, and during a second rotation phase, it pushes the rotating member to rotate.

[0025] During adjustment, the positioning component is rotated. In the first rotation stage of the positioning component, the limiting member moves in the limiting groove. The limiting member pushes the positioning component to disengage from the adjusting rod assembly, thereby releasing the positioning of the adjusting rod assembly. When the limiting member is obstructed in the limiting groove and cannot move relative to the rotating member, the positioning component enters the second rotation stage. The limiting member pushes the rotating member to rotate, and the rotating member drives the adjusting rod assembly to move relative to the adjusting sleeve assembly, thereby achieving the purpose of adjustment.

[0026] This configuration allows the positioning component to be embedded in the adjusting rod assembly for positioning. When adjustment is needed, a rotational operation causes the positioning component, in cooperation with the limiting member and the limiting groove, to first move along the second direction axis to release the positioning (unlock) of the adjusting rod assembly. Then, rotation continues to the second stage, where the limiting member pushes the rotating component to rotate, thereby causing the adjusting rod assembly to move along the first direction to achieve adjustment. This integrates the unlocking and adjustment actions into a single rotational operation, allowing for operation with one hand. It is simple to operate, convenient to adjust, and saves time and effort. Furthermore, this unlock-then-adjustment method effectively avoids the problems of adjustment difficulties or damage to the mechanism caused by adjusting before complete unlocking, ensuring smooth, accurate, and safe adjustment operations. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of the adjustment module in the embodiments of this application.

[0029] Figure 2 This is an exploded view of the adjustment module in an embodiment of this application.

[0030] Figure 3This is a schematic diagram of the rotating component of the adjustment module in an embodiment of this application.

[0031] Figure 4 for Figure 1 Sectional view of AA.

[0032] Figure 5 for Figure 1 A cross-sectional view of BB.

[0033] in:

[0034] 10-Adjusting sleeve assembly, 11-First sliding cover, 12-Second sliding cover, 121-Mounting groove, 122-Through hole;

[0035] 20-Adjusting rod assembly, 21-Adjusting rod body, 211-Rack, 212-Displacement scale mark, 213-First receiving groove, 214-Groove, 22-Positioning element, 221-Positioning hole;

[0036] 30-Rotating component, 31-Limiting groove, 311-First spiral groove, 312-Second spiral groove, 32-Abutting hole, 33-Gear tooth portion, 34-Second receiving groove;

[0037] 40 - Positioning component, 41 - Positioning pin, 411 - Embedded end, 42 - Toggle element;

[0038] 50 - Limiting component;

[0039] 60 - Top part;

[0040] 70 - Supporting elastic element;

[0041] 80 - Reset elastic element. Detailed Implementation

[0042] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0043] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Please see Figure 1 , Figure 2 and Figure 3 The adjustment module provided in this application embodiment includes an adjustment sleeve assembly 10, an adjustment rod assembly 20, a rotating component 30, a positioning component 40, and a limiting component 50.

[0045] The adjusting rod assembly 20 is movably embedded in the adjusting sleeve assembly 10, and the adjusting rod assembly 20 can move relative to the adjusting sleeve assembly 10 in a first direction. The length by which the adjusting rod assembly 20 extends relative to the adjusting sleeve assembly 10 is used to control the parameters to be adjusted (such as radian or length) of the part to be adjusted.

[0046] The rotating component 30 engages with the adjusting rod assembly 20. The rotating component 30 can rotate around its own axis, which is parallel to the second direction, thereby driving the adjusting rod assembly 20 to move. The rotating component 30 has a limit groove 31.

[0047] The so-called first direction can be as follows: Figure 1 The X-axis direction is shown, and the second direction can be as follows: Figure 1 The Y-axis direction is shown.

[0048] The positioning component 40 is fitted with the rotating component 30. The positioning component 40 can be embedded in the adjusting rod assembly 20 to position the adjusting rod assembly 20. In addition, the positioning component 40 can also rotate around the axis of the second direction and move along the axis of the second direction to release the positioning of the adjusting rod assembly 20.

[0049] The limiting member 50 is provided on the positioning component 40. The limiting member 50 is used to move along the limiting groove 31 during the first rotation stage of the positioning component 40, so that the positioning component 40 is disengaged from the adjusting rod assembly 20. The limiting member 50 is also used to push the rotating member 30 to rotate during the second rotation stage of the positioning component 40, thereby driving the adjusting rod assembly 20 to move.

[0050] During adjustment, the positioning component 40 is rotated. In the first rotation stage of the positioning component 40, the limiting member 50 moves in the limiting groove 31. The limiting member 50 pushes the positioning component 40 to disengage from the adjusting rod assembly 20, thereby releasing the positioning of the adjusting rod assembly 20. When the limiting member 50 is blocked in the limiting groove 31 and cannot move relative to the rotating member 30, the positioning component 40 enters the second rotation stage. The limiting member 50 pushes the rotating member 30 to rotate, and the rotating member 30 drives the adjusting rod assembly 20 to move relative to the adjusting sleeve assembly 10, thereby achieving the purpose of adjustment.

[0051] With this configuration, the positioning component 40 is embedded in the adjusting rod assembly 20 to achieve the positioning purpose. When adjustment is required, the positioning component 40 is moved along the second direction axis by rotation under the cooperation of the limiting member 50 and the limiting groove 31 to release the positioning (unlock) of the adjusting rod assembly 20. Then, it continues to rotate to the second stage, and the limiting member 50 pushes the rotating member 30 to rotate, thereby driving the adjusting rod assembly 20 to move along the first direction to achieve adjustment.

[0052] This method integrates unlocking and adjustment into a single rotation operation, allowing for one-handed operation. It is simple, convenient, and saves time and effort. Furthermore, the unlock-then-adjust method effectively avoids difficulties or damage to the mechanism caused by adjusting before complete unlocking, ensuring smooth, precise, and safe adjustment.

[0053] Please refer to the following: Figure 4 and Figure 5 The adjusting rod assembly 20 includes an adjusting rod body 21 and a positioning member 22. To facilitate the engagement of the adjusting rod body 21 and the rotating member 30, the adjusting rod body 21 is provided with a rack 211 that engages with the rotating member 30. The positioning member 22 is connected to the adjusting rod body 21 by fasteners. In this way, the adjusting rod body 21 is positioned by embedding the positioning member 22 into the positioning assembly 40.

[0054] Specifically, the positioning member 22 can be a positioning plate structure. The positioning member 22 is provided with positioning holes 221 spaced apart along the first direction. The spacing between two adjacent positioning holes 221 can be set to be the same. After adjustment, the positioning component 40 is inserted into the positioning hole 221 to restrict the movement of the adjusting rod body 21, thereby achieving the purpose of positioning the adjusting rod body 21.

[0055] In some embodiments, the positioning assembly 40 includes a positioning pin 41 and a toggle member 42. The positioning pin 41 passes through the rotating member 30 and has an insert end 411 that engages with the positioning hole 221. The insert end 411 has a certain taper so that the tip of the insert end 411 can be smoothly inserted into the positioning hole 221. The toggle member 42 is connected to the positioning pin 41 and is used to drive the positioning pin 41 out of the positioning hole 221 to release the positioning of the adjusting rod body 21.

[0056] To facilitate the connection between the actuating element 42 and the positioning pin 41, the actuating element 42 is provided with an axial connecting hole, and the positioning pin 41 is interference-fitted into the connecting hole to achieve synchronous movement of the actuating element 42 and the positioning pin 41 during the adjustment process.

[0057] To facilitate the automatic reset of the positioning pin 41 into the positioning hole 221 after adjustment, the adjustment module also includes a reset elastic element 80, which can be a reset spring. The two ends of the reset elastic element 80 abut against the actuating element 42 and the adjustment sleeve assembly 10, respectively. The reset elastic element 80 is used to provide elastic force so that the positioning pin 41 tends to be embedded into the positioning hole 221.

[0058] To facilitate the installation of the reset elastic element 80, the actuating element 42 has an annular protrusion at one end near the positioning element 22. One end of the reset elastic element 80 abuts against the inner side of the annular protrusion, and the other end abuts against the inner wall of the adjusting sleeve assembly 10.

[0059] In this way, when the actuating element 42 is rotated, under the cooperation of the limiting element 50 and the limiting groove 31, the limiting element 50 pushes the positioning pin 41 to disengage from the positioning hole 221, thereby releasing the positioning of the adjusting rod body 21. During the process of releasing the positioning, the reset elastic element 80 accumulates elastic potential energy. When the actuating element 42 is rotated again, the limiting element 50 pushes the rotating element 30 to rotate. The rotating element 30 drives the adjusting rod body 21 to move relative to the adjusting sleeve assembly 10, thereby achieving the purpose of adjustment. After the adjustment is completed, the actuating element 42 is released, and the elastic potential energy accumulated by the reset elastic element 80 is released, so that the positioning pin 41 automatically resets and embeds into the positioning hole 221, thereby realizing the repositioning of the adjusting rod body 21.

[0060] Please refer to the following: Figure 3 and Figure 5 The rotating member 30 is provided with a second receiving groove 34, and a limiting groove 31 is provided in the second receiving groove 34. The second receiving groove 34 is used to accommodate at least part of the actuating member 42.

[0061] In other words, at least part of the actuating member 42 is assembled in the second receiving groove 34 of the rotating member 30, and the limiting member 50 assembled on the actuating member 42 cooperates with the limiting groove 31 in the second receiving groove 34, so that the actuating member 42 can move along the second direction while rotating.

[0062] In addition, for easy movement and adjustment, the rotating part 30 is provided with a toothed part 33 that meshes with the rack 211. Meanwhile, the adjusting rod body 21 is provided with a first receiving groove 213 and a groove 214. The first receiving groove 213 is used to accommodate the toothed part 33, the groove 214 is provided in the first receiving groove 213, and the positioning part 22 is provided in the groove 214.

[0063] In the second direction, the size of the first receiving groove 213 and the size of the toothed portion 33 can be approximately the same, and the size of the positioning member 22 is less than or equal to the size of the groove 214, so that the positioning member 22 can be completely hidden in the adjusting rod body 21.

[0064] By adopting the above-described arrangement, that is, assembling at least a portion of the actuating member 42 into the second receiving groove 34 of the rotating member 30, assembling the gear tooth portion 33 of the rotating member 30 into the first receiving groove 213 of the adjusting rod body 21, and assembling the positioning member 22 into the groove 214 of the adjusting rod body 21, it is beneficial to reduce the size of the product in the second direction.

[0065] Please refer to the following: Figure 5 The adjustment module also includes a stop member 60 and a stop elastic member 70. The stop elastic member 70 abuts between the adjustment sleeve assembly 10 and the stop member 60 to provide elastic force to the stop member 60, so that the stop member 60 tends to move closer to the rotating member 30.

[0066] Therefore, the rotating component 30 is provided with abutting holes 32 evenly distributed along the circumference, and the abutting component 60 is positioned and engaged with the abutting holes 32. Among them, the abutting component 60 is bead-shaped, the abutting hole 32 is a round hole, and the abutting elastic component 70 is an abutting spring.

[0067] In this way, when adjusted to the required angle or length, the abutment 60 rotates from the previous abutment hole 32 to the next abutment hole 32, and emits a predetermined sound and generates a predetermined force, thereby providing the operator with sound and force feedback.

[0068] To facilitate precise control of the length of the adjusting rod body 21 extending relative to the adjusting sleeve assembly 10, the adjusting rod body 21 is provided with a displacement scale mark 212, which is used to indicate the current length of the adjusting rod body 21 extending relative to the adjusting sleeve assembly 10.

[0069] In some embodiments, the distance between two adjacent scales in the displacement scale mark 212 is equal to the distance between two adjacent positioning holes 221, and the adjusting rod body 21 is configured to extend one unit scale of the displacement scale mark 212 relative to the adjusting sleeve assembly 10 when the abutment 60 passes through two adjacent abutment holes 32.

[0070] Please refer to the following: Figure 3 The limiting groove 31 can be a combined spiral groove. Specifically, the limiting groove 31 includes a first spiral groove 311 and a second spiral groove 312. Both the first spiral groove 311 and the second spiral groove 312 have a first position and a second position, and the first spiral groove 311 and the second spiral groove 312 are connected at the first position. When the limiting member 50 is in the first position, the positioning component 40 is embedded in the adjusting rod assembly 20. When the limiting member 50 is in the second position, the positioning component 40 is disengaged from the adjusting rod assembly 20. Of course, the limiting member 50 is specifically a limiting bead.

[0071] It should be noted that the first position mentioned above is the highest point of the first spiral groove 311 or the second spiral groove 312, and correspondingly, the second position is the lowest point of the first spiral groove 311 or the second spiral groove 312.

[0072] In this way, when the positioning pin 41 is embedded in the positioning hole 221, the limiting member 50 is located at the highest point of the first spiral groove 311 or the second spiral groove 312. As the actuating member 42 enters the first rotation stage, the limiting member 50 moves along the spiral groove from the highest point to the lowest point. When the limiting member 50 reaches the lowest point, the positioning pin 41 disengages from the positioning hole 221, thus unlocking. Then, the actuating member 42 enters the second rotation stage. Since the limiting member 50 is blocked at the lowest point of the spiral groove and cannot continue to rotate relative to the rotating member 30, it can only push the rotating member 30 to rotate together, so as to realize the movement of the adjusting rod body 21. After the adjustment is completed, the actuating member 42 is released, and the positioning pin 41 is reset under the elastic force of the reset elastic member 80 and re-embedded in other positioning holes 221. At this time, the limiting member 50 returns to the highest point along the spiral groove from the lowest point.

[0073] It should be noted that during the unlocking and relocking process of the positioning pin 41, the limiting member 50 only moves in both the forward and reverse directions within one spiral groove. The purpose of setting the other spiral groove is that when the limiting member 50 is at the highest point of the first spiral groove 311 or the second spiral groove 312, the operator can rotate the actuating member 42 in either the clockwise or counterclockwise direction. For example, when rotating clockwise, the limiting member 50 moves from the highest point to the lowest point along the first spiral groove 311; when rotating counterclockwise, the limiting member 50 moves from the highest point to the lowest point along the second spiral groove 312.

[0074] In some embodiments, the adjusting sleeve assembly 10 includes a first sliding cover 11 and a second sliding cover 12, which together form a sliding track. The adjusting rod assembly 20 slides under the guidance and limiting action of the sliding track. This guides and limits the movement of the adjusting rod body 21 relative to the adjusting sleeve assembly 10 during the adjustment process, ensuring the stability of the movement of the adjusting rod body 21.

[0075] In addition, the second sliding cover 12 is provided with a mounting groove 121 and a through hole 122. The mounting groove 121 is located inside the through hole 122. The rotating member 30 is installed in the mounting groove 121. The through hole 122 and the mounting groove 121 are connected in the second direction. The positioning component 40 passes through the through hole 122.

[0076] In this way, the rotating part 30 can rotate within the mounting slot 121, which helps to protect the rotating part 30 and ensure the adjustment accuracy and service life of the adjustment module.

[0077] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0078] The adjustment module provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of this application.

Claims

1. An adjustment module, characterized in that, include: Adjustment sleeve assembly; An adjusting rod assembly is movably fitted into the adjusting sleeve assembly for moving relative to the adjusting sleeve assembly along a first direction; A rotating component engages with the adjusting rod assembly and is used to rotate about an axis in a second direction perpendicular to the first direction, so as to drive the adjusting rod assembly to move. The rotating component is provided with a limiting groove. A positioning component, which is fitted and cooperates with the rotating member, is used to embed into the adjusting rod assembly to position the adjusting rod assembly, and is also used to move along the axis of the second direction while rotating about the axis of the second direction to release the positioning of the adjusting rod assembly; A limiting member is provided on the positioning assembly and is used to move along the limiting groove during the first rotation phase of the positioning assembly to push the positioning assembly away from the adjusting rod assembly, and is also used to push the rotating member to rotate during the second rotation phase of the positioning assembly.

2. The adjustment module as described in claim 1, characterized in that, The adjusting rod assembly includes: The adjusting rod body is provided with a rack that meshes with the rotating component; A positioning component, connected to the adjusting rod body, is provided with positioning holes spaced apart along the first direction. The positioning component is embedded in the positioning holes to restrict the movement of the adjusting rod body.

3. The adjustment module as described in claim 2, characterized in that, The positioning component includes: A positioning pin passes through the rotating component and has an insert end that mates with the positioning hole; An actuating element, connected to the positioning pin, is used to drive the positioning pin away from the positioning hole.

4. The adjustment module as described in claim 3, characterized in that, The adjustment module further includes a reset elastic element, the two ends of which abut against the actuating element and the adjustment sleeve assembly, respectively. The reset elastic element is used to provide elastic force so that the positioning pin tends to embed into the positioning hole.

5. The adjustment module as described in claim 3, characterized in that, The rotating component is provided with a second receiving groove, and the limiting groove is provided in the second receiving groove. The second receiving groove is used to accommodate at least a portion of the actuating component.

6. The adjustment module as described in claim 2, characterized in that, The rotating component has a toothed portion that meshes with the rack, the adjusting rod body has a first receiving groove and a recess, the first receiving groove is used to accommodate the toothed portion, the recess is located in the first receiving groove, and the positioning component is located in the recess.

7. The adjustment module as described in any one of claims 1-6, characterized in that, The adjustment module further includes a stop member and a stop elastic member. The stop elastic member abuts against the adjustment sleeve assembly and the stop member to provide elastic force to the stop member, so that the stop member tends to move closer to the rotating member. The rotating component is provided with abutting holes evenly distributed along the circumference, and the abutting component is positioned and engaged with the abutting holes.

8. The adjustment module as described in any one of claims 1-6, characterized in that, The limiting groove includes a first spiral groove and a second spiral groove. Both the first spiral groove and the second spiral groove have a first position and a second position. The first spiral groove and the second spiral groove are connected at the first position. When the limiting member is in the first position, the positioning component is embedded in the adjusting rod assembly. When the limiting member is in the second position, the positioning component is disengaged from the adjusting rod assembly.

9. The adjustment module as described in any one of claims 1-6, characterized in that, The adjusting sleeve assembly includes a first sliding cover and a second sliding cover, which together form a sliding track. The adjusting rod assembly slides under the guidance and limiting action of the sliding track.

10. The adjustment module as described in claim 9, characterized in that, The second sliding cover is provided with a mounting groove and a through hole. The rotating component is installed in the mounting groove. The through hole communicates with the mounting groove in the second direction. The positioning component passes through the through hole.

Images