Locking mechanism

Abstract

The utility model provides a locking mechanism which comprises a base, a moving seat, a control piece and a locking piece, the control piece controls the locking piece to move on the base and the moving seat, and after entering, the locking piece leaves a locking hole in the base or the moving seat to achieve locking or unlocking. The device further comprises an adjusting feedback assembly, the adjusting feedback assembly is arranged between the control piece and the base or between the control piece and the moving seat, the adjusting feedback assembly comprises an adjusting moving piece and a feedback part, and the adjusting feedback assembly is configured to enable the adjusting moving piece and the feedback part to move relatively when the control piece moves. The adjusting moving part moves from one side of the feedback part to the other side of the feedback part through the feedback part and gives adjusting feedback to a user; the adjusting feedback assembly gives hand feeling feedback to a user when the user operates the locking mechanism, and the user can clearly know whether locking or unlocking operation is completed or not, so that the operation hand feeling is improved; adjustment feedback given by the adjustment feedback component to the user may be tactile feedback and / or auditory feedback.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a locking mechanism. Background Art

[0002] Today's furniture is more diverse than before to solve problems such as functionality, comfort and health risks. They can adapt to more usage scenarios and solve more technical problems by switching states. Among them, state switching often requires manual operation by the user. When manufacturers focus on technical issues such as functionality and comfort, they ignore the problem of operability when switching states. Taking seats as an example, the operating levers on the seats are generally operated by turning and pulling. Manufacturers often only pay attention to the realization of functions and ignore the feedback of operations, so that the operating levers have almost no interaction with users. When users control the movement of the operating lever, even if they look down and see the movement of the operating lever, they cannot know that the internal work is completed, which increases the chance of misoperation and reduces the user experience.

[0003] Therefore, a mechanism capable of providing operation feedback to the user is needed to solve the above problems. Summary of the invention

[0004] In order to solve the above-mentioned technical problems, the utility model provides a locking mechanism, including a base, a moving seat, a control member and a locking member, wherein the control member controls the locking member to move on the base and the moving seat, and enters and then leaves the locking hole on the base or the moving seat to realize locking or unlocking; and also includes an adjustment feedback component, which is arranged between the control member and the base or between the control member and the moving seat, and the adjustment feedback component includes an adjustment moving member and a feedback part, and the adjustment feedback component is configured so that when the control member moves, the adjustment moving member and the feedback part move relative to each other, and the adjustment moving member moves from one side of the feedback part through the feedback part to the other side of the feedback part, and gives adjustment feedback to the user; the adjustment feedback component gives the user tactile feedback when operating the locking mechanism, and the user can clearly know whether the user has completed the locking or unlocking operation, thereby increasing the operation feel.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A locking mechanism comprises a base, a moving base, a control member and a locking member, wherein the moving base is rotatably arranged on the base, the locking member is slidably arranged on the base and the moving base, and the control member is arranged on the base or the moving base; a locking hole is opened on one of the base or the moving base, and the control member is configured to control the locking member to slide and enter or leave the locking hole; when the locking member enters the locking hole, the moving base and the base are locked and relatively stationary, and when the locking member leaves the locking hole, the moving base and the base are unlocked; and an adjustment feedback component is also included, the adjustment feedback component is arranged between the control member and the base or between the control member and the moving base, the adjustment feedback component comprises an adjustment moving member and a feedback part, and the adjustment feedback component is configured so that when the control member moves, the adjustment moving member and the feedback part move relatively, the adjustment moving member moves from one side of the feedback part through the feedback part to the other side of the feedback part, and gives adjustment feedback to the user.

[0007] The adjustment feedback component gives the user tactile feedback when operating the locking mechanism, so that the user can clearly know whether the locking or unlocking operation has been completed, thereby increasing the operating feel; when the adjustment feedback component is arranged between the moving seat and the control member, the adjustment moving member is arranged on one of the moving seat or the control member, and the feedback part is arranged on the other; when the adjustment feedback component is arranged between the control member and the base, the adjustment moving member is arranged on one of the base or the control member, and the feedback part is arranged on the other; all of these can realize the above-mentioned scheme; the adjustment feedback given to the user by the adjustment feedback component can be tactile feedback and / or auditory feedback.

[0008] Preferably, the feedback part is a convex part, the feedback part or the adjusting moving part has elastic deformation capability, and the relative position of the adjusting moving part and the feedback part is changed by elastic deformation. When the adjusting moving part is located on one side of the feedback part, neither of them will produce elastic deformation, and only when the adjusting moving part passes through the feedback part, the adjusting moving part or the feedback part will produce elastic deformation.

[0009] Preferably, the control member and the locking member are arranged in the same direction, the control member is slidably arranged on the base, a push-pull torsion spring is arranged between the control member and the locking member, one of the torsion spring arms of the push-pull torsion spring is fixed on the control member, and the other torsion spring arm of the push-pull torsion spring is arranged on the locking member; the push-pull torsion spring is configured to drive the locking member to move through the push-pull torsion spring when the control member moves.

[0010] Preferably, the push-pull torsion spring has a bending portion, and the adjusting moving part is the bending portion; the feedback portion is a convex portion, and the convex portion is arranged on the base, and the bending portion abuts against the base. When the operating rod moves, the bending portion passes over the convex portion to allow the locking member to enter or leave the locking hole. The convex portion is arranged on the movement path of the push-pull torsion spring. When the control member drives the push-pull torsion spring and then drives the locking member to slide, the push-pull torsion spring abutting against the base will pass through the convex portion and produce elastic deformation to provide operational feedback; when the push-pull torsion spring moves toward the locking hole and passes through the convex portion, the locking member enters the locking hole, and the cooperation between the push-pull torsion spring and the convex portion will give the user a locking feel feedback, and conversely, feedback can also be received when unlocking, so as to clarify the state of the locking mechanism at this time.

[0011] Preferably, the control member is perpendicular to the locking member, the control member is rotatably arranged on the moving seat, a push-pull torsion spring is arranged between the control member and the locking member, one of the torsion spring arms of the push-pull torsion spring is fixed on the control member, and the other torsion spring arm of the push-pull torsion spring is arranged on the locking member; the push-pull torsion spring is configured to drive the locking member to move through the push-pull torsion spring when the control member rotates.

[0012] Preferably, a gear seat is provided on the movement seat, a synchronously rotating gear member is sleeved on the control member, and the adjustment movement member is the gear member; a gear slot is provided on the gear seat, and the gear member is inserted into the gear slot; the gear slot has a first gear and a second gear, and a feedback part is provided between the first gear and the second gear; the feedback part is a convex part, which protrudes toward the inside of the gear slot, and the gear member switches between the first gear and the second gear by crossing the convex part. The convex part gives inertia when switching gears to increase the operating feel, so that the user can feel the completion of the gear switching, and after completing the gear switching, the gear member is left in the current gear.

[0013] The design starting point, concept and beneficial effects of the utility model using the above technical solution are:

[0014] The adjustment feedback component gives the user tactile feedback when operating the locking mechanism, so that the user can clearly know whether the locking or unlocking operation has been completed, thereby increasing the operating feel; when the adjustment feedback component is arranged between the moving seat and the control member, the adjustment moving member is arranged on one of the moving seat or the control member, and the feedback part is arranged on the other; when the adjustment feedback component is arranged between the control member and the base, the adjustment moving member is arranged on one of the base or the control member, and the feedback part is arranged on the other; all of these can realize the above-mentioned scheme; the adjustment feedback given to the user by the adjustment feedback component can be tactile feedback and / or auditory feedback. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The three-dimensional structure of the chassis device in the first embodiment of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 2 The three-dimensional structure of the chassis device in the first embodiment of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 3 It is an exploded view of the chassis device in Example 1 of the present utility model;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure inside the base in Example 1 of the utility model;

[0019] Figure 5 This is a top view of the interior of the base in Example 1 of the utility model;

[0020] Figure 6 It is an exploded view of the chassis device in Example 2 of the present utility model;

[0021] Figure 7 An exploded view of the chassis device in Example 3 of the present utility model;

[0022] Figure 8 This is a top view of the interior of the base in Example 3 of the present utility model;

[0023] Fig. 9 This is a schematic diagram of the three-dimensional structure of the chassis device in Example 4 of the present utility model;

[0024] Fig.10 An exploded view of the chassis device in Example 4 of the present utility model;

[0025] Fig.11 This is a schematic diagram of the three-dimensional structure of the gear seat in Example 4 of the utility model;

[0026] Fig.12 The three-dimensional structure diagram of the back connecting member in the embodiment 5 of the utility model is rotatably arranged on the first swing seat Figure 1 ;

[0027] Fig.13 The three-dimensional structure diagram of the back connecting member in the embodiment 5 of the utility model is rotatably arranged on the first swing seat Figure 2 .

[0028] The figures are marked as follows: base 1; first swing seat 2; second swing seat 3; first rotating shaft 4; second rotating shaft 5; spring 6; first mounting hole 7; first locking hole 8; first locking piece 9; operating lever 10; push-pull torsion spring 11; bending portion 12; convex portion 13; end plate 14; rotating groove 15; second locking hole 16; second locking piece 18; second mounting hole 19; buffering return torsion spring 20; gear seat 21; gear piece 22; gear groove 23; first gear 231; second gear 232; back connecting piece 24; sliding rotating piece 25; sliding rotating groove 26; connecting seat 27. DETAILED DESCRIPTION

[0029] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0031] In the description of the present invention, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0032] The specific implementation of the utility model is as follows: Example

[0033] like Figure 1-3 As shown, the utility model provides a locking mechanism, including a base, a moving seat, a control member and a locking member, the moving seat is rotatably arranged on the base, the locking member is slidably arranged on the base and the moving seat, and the control member is arranged on the base or the moving seat; a locking hole is opened on one of the base or the moving seat, and the control member is configured to control the locking member to slide and enter or leave the locking hole; when the locking member enters the locking hole, the moving seat and the base are locked and relatively stationary, and when the locking member leaves the locking hole, the moving seat and the base are unlocked; it also includes an adjustment feedback component, the adjustment feedback component is arranged between the control member and the base or between the control member and the moving seat, the adjustment feedback component includes an adjustment moving member and a feedback part, and the adjustment feedback component is configured so that when the control member moves, the adjustment moving member and the feedback part move relative to each other, the adjustment moving member moves from one side of the feedback part through the feedback part to the other side of the feedback part, and gives the user adjustment feedback.

[0034] The adjustment feedback component gives the user tactile feedback when operating the locking mechanism, so that the user can clearly know whether the user has completed the locking or unlocking operation, thereby increasing the operating feel; when the adjustment feedback component is arranged between the moving seat and the control member, the adjustment moving member is arranged on one of the moving seat or the control member, and the feedback part is arranged on the other; when the adjustment feedback component is arranged between the control member and the base, the adjustment moving member is arranged on one of the base or the control member, and the feedback part is arranged on the other; all of these can realize the above-mentioned scheme; the adjustment feedback given to the user by the adjustment feedback component can be tactile feedback and / or auditory feedback; the feedback part is a convex part, and the feedback part or the adjustment moving member has elastic deformation ability, and the change of the relative position of the adjustment moving member and the feedback part is realized by elastic deformation; when the adjustment moving member is located on one side of the feedback part, neither of them will produce elastic deformation, and only when the adjustment moving member passes through the feedback part, the adjustment moving member or the feedback part will produce elastic deformation.

[0035] The locking mechanism is applied to a chassis device, as described below; wherein the moving seat is a first swinging seat 2, the control member is an operating rod 10, the locking member is a first locking member 9, the locking hole is a first locking hole 8, and the adjusting moving member is a bending portion 12.

[0036] The chassis device includes a base 1, a first swing seat 2 and a second swing seat 3. The first swing seat 2 is hinged on the base 1 through a first rotating shaft 4 arranged along the front and back, and the second swing seat 3 is hinged on the first swing seat 2 through a second rotating shaft 5 arranged along the left and right. The first swing seat 2 is configured to drive the second swing seat 3 to swing left and right on the base 1, and the second swing seat 3 is configured to connect the seat and swing back and forth on the first swing seat 2; an elastic buffer is provided between the first swing seat 2 and the base 1, and the elastic buffer is configured to provide swing buffering and reset force for the first swing seat 2.

[0037] The base 1 is used to connect the chair leg gas rod. Under the action of the first swing seat 2, the first swing seat 2 can swing left and right on the base 1, and the second swing seat 3 can swing back and forth on the first swing seat 2 and can swing left and right together with the first swing seat 2 under the drive of the first swing seat 2, so that the seat connected to the second swing seat 3 can swing back and forth, left and right, thereby making the swing more flexible, making it more flexible when changing sitting postures, adapting to more sitting postures, and allowing users to do what they want with higher comfort, and the elastic buffer also improves the comfort during swinging.

[0038] Specifically, if Figure 3-5As shown, there are two first rotating shafts 4, which respectively hinge the front of the base 1 with the front of the first swing seat 2, and hinge the rear of the base 1 with the rear of the first swing seat 2; the elastic buffer is a spring 6, and there are four springs 6. The springs 6 are vertically arranged and symmetrically distributed on both sides of the first rotating shaft 4, that is, there are two springs 6 on each side, and the springs 6 on both sides are symmetrically distributed to maintain force balance.

[0039] Two first mounting holes 7 are provided on the base 1, and a first locking hole 8 is provided on the first swing seat 2. The two first mounting holes 7 are coaxial and distributed in the left-right direction. A first locking piece 9 arranged in the left-right direction is inserted in the first mounting hole 7. The first locking piece 9 is selectively slidably arranged on the base 1 and selectively enters or leaves the first locking hole 8; the first locking piece 9 is configured to selectively enter the first locking hole 8 to lock the first swing seat 2 and the base 1 or selectively leave the first locking hole 8 to unlock the first swing seat 2 and the base 1; the movement of the first locking piece 9 is controlled by an operating rod 10, and the operating rod 10 is inserted in the base 1 in the left-right direction. The operating rod 10 and the first locking piece 9 are connected by a push-pull torsion spring 11. When the operating rod 10 slides left and right on the base 1, the push-pull torsion spring 11 is driven to move, thereby driving the first locking piece 9 to move; further, one of the torsion spring arms of the push-pull torsion spring 11 is fixed on the operating rod 10, and the push-pull torsion spring 11 is fixed to the operating rod 10. The other torsion spring arm is arranged on the first locking piece 9, and the push-pull torsion spring 11 is located inside the base 1 and the first swing seat 2. The push-pull torsion spring 11 has a bent portion 12, which is bent downward and abuts against the base 1. A convex portion 13 is provided on the base 1, and the convex portion 13 is arranged on the movement path of the push-pull torsion spring 11. When the operating rod 10 drives the push-pull torsion spring 11 and then drives the first locking piece 9 to slide, the push-pull torsion spring 11 abutting against the base 1 will pass through the convex portion 13. When the push-pull torsion spring 11 moves toward the first locking hole 8 and passes through the convex portion 13, the first locking piece 9 enters the locking hole, and the cooperation between the push-pull torsion spring 11 and the convex portion 13 will give the user a hand-feel feedback of locking the first swing seat 2 and the base 1, and vice versa, feedback can also be received when unlocking; in this way, the elasticity of the push-pull torsion spring 11 is combined with the convex portion 13 to make the unlocking and locking operation in one step, and secondly, the completion of unlocking and locking can be fed back to the user, so that the user can clearly understand the state of the chassis device at this time.

[0040] In the above scheme, the pull-out operating lever 10 is easy for the user to operate to drive the first locking piece 9 to slide; the first locking piece 9 is slidably arranged on the first swing seat 2 and the base 1, and the first locking piece 9 is inserted in the first mounting hole 7 and slidably cooperates with the first mounting hole 7, and when the first locking piece 9 slides toward the first locking hole 8 and enters the first locking hole 8, it can lock the first swing seat 2 and the base 1, so that the first swing seat 2 cannot move on the base 1. Similarly, when the first locking piece 9 leaves the first locking hole 8, the first swing seat 2 and the base 1 are unlocked, and the first swing seat 2 can move on the base 1.

[0041] The second swing seat 3 includes two end plates 14 located on the left and right sides, the two ends of which protrude downward and are located on both sides of the first swing seat 2. The second swing seat 3, the first swing seat 2 and the base 1 are distributed in sequence from top to bottom; the second shaft 5 is arranged in the middle of the end plate 14 and passes through the first swing seat 2 and the two end plates 14, one of the end plates 14 is provided with a rotation groove 15 on the side of the second shaft 5, and the other end plate 14 is provided with a second locking hole 16 correspondingly; the first swing seat 2 and the second swing seat 3 are unlocked or locked by a second locking member 18 for relative rotation between the second swing seat 3 and the first swing seat 2, and the second locking member 18 is provided for relative rotation between the first swing seat 2 and the second swing seat 3. A second mounting hole 19 is provided on a swing seat 2, and a second locking member 18 is inserted in the rotation groove 15 and the second mounting hole 19. The second locking member 18 is selectively slidably arranged on the first swing seat 2 and the second swing seat 3 along the left-right direction. The second locking member 18 is configured to selectively enter the second locking hole 16 to lock the first swing seat 2 and the second swing seat 3 or selectively leave the second locking hole 16 to unlock the second swing seat 3 and the first swing seat 2; when the second locking member 18 leaves the second locking hole 16 and the second swing seat 3 rotates relative to the first swing seat 2, the second locking member 18 moves in the rotation groove 15.

[0042] Embodiment 2: The difference between this embodiment and embodiment 1 is only the number of springs 6. Specifically:

[0043] like Figure 6 , 7 As shown, in this embodiment, there are two springs 6 , and the two springs 6 are vertically and symmetrically distributed on both sides of the first rotating shaft 4 .

[0044] Embodiment 3: The difference between this embodiment and embodiment 1 is only in the elastic buffer and its arrangement. Specifically:

[0045] like Figure 8 As shown, the elastic buffer member is a buffer return torsion spring 20, which is sleeved on the first rotating shaft 4; the number of the buffer return torsion springs 20 is at least an even number. In this embodiment, considering the cost, two buffer return torsion springs 20 are selected, and the two buffer return torsion springs 20 are respectively sleeved on the two first rotating shafts 4. The two torsion spring arms of the buffer return torsion spring 20 act on the base 1 and the first swing seat 2 respectively, and the two torsion spring arms of the two buffer return torsion springs 20 face opposite directions to maintain the force balance on the left and right sides of the first rotating shaft 4.

[0046] When more buffer return torsion springs 20 are selected, in order to maintain the force balance on the left and right sides of the first rotating shaft 4, the number of torsion spring arms on both sides of the first rotating shaft 4 is the same, that is, the number of buffer return torsion springs 20 with torsion spring arms facing the left side is the same as the number of buffer return torsion springs 20 with torsion spring arms facing the right side.

[0047] Embodiment 4: This embodiment differs from Embodiment 1 in that the operation modes of locking and unlocking the first swing seat 2 and the base 1 are different; wherein the moving seat is the first swing seat 2, the control member is the operating rod 10, the locking member is the first locking member 9, the locking hole is the first locking hole 8, the adjusting moving member is the shift member 22, and the shift seat 21 around the shift slot 23 has elastic deformation capability. Specifically:

[0048] like Figure 9-11 As shown, the scheme drives the movement of the first locking member 9 by a rotating operating rod 10 to achieve locking and unlocking of the first swing seat 2. The first swing seat 2 is provided with an operating rod 10, and the operating rod 10 is selectively rotatable; the operating rod 10 is arranged along the left and right direction, and the first locking member 9 is arranged along the front and rear direction. The operating rod 10 is connected to the first locking member 9, and the operating rod 10 is configured so that the operating rod 10 rotates to drive the first locking member 9 to leave or enter the first locking hole 8; there are two first locking members 9, and the two first locking members 9 are symmetrically arranged on both sides of the first rotating shaft 4; since the first locking member 9 in the scheme is arranged to slide back and forth, when the left and right sides of the first swing seat 2 and the base 1 are both acted upon by the first locking member 9, the balance and stability during locking can be maintained.

[0049] The operating rod 10 is sleeved with a push-pull torsion spring 11, one of the torsion spring arms of the push-pull torsion spring 11 is fixed on the operating rod 10, and the other torsion spring arm of the push-pull torsion spring 11 is arranged on the first locking member 9. The push-pull torsion spring 11 is configured so that the operating rod 10 drives the first locking member 9 to move through the push-pull torsion spring 11; the push-pull torsion spring 11 can make the rotation of the operating rod 10 become the sliding driving force of the first locking member 9; further, a gear seat 21 is provided on the first swing seat 2, and a synchronously rotating gear member 22 is sleeved on the operating rod 10, and a gear seat 21 is provided The gear slot 23 has a first gear position 231 and a second gear position 232, and a convex portion 13 is provided between the first gear position 231 and the second gear position 232. The convex portion 13 protrudes toward the inside of the gear slot 23, and the gear member 22 switches between the first gear position 231 and the second gear position 232 over the convex portion 13; the convex portion 13 gives inertia during gear switching to increase the operating feel, so that the user can feel the completion of the gear switching, and after completing the gear switching, the gear member 22 is left in the current gear position.

[0050] Embodiment 5: The difference between this embodiment and embodiment 4 is that a back connecting member 24 is provided to realize seat-back linkage; specifically:

[0051] like Fig.12 , 13As shown, this scheme enables the chair back and the seat to swing left and right together: a back connector 24 is provided on the first swing seat 2, and the back connector 24 is configured to connect the chair back and swing with the swing of the first swing seat 2; the front end of the back connector 24 is rotatably connected to the first swing seat 2; the back connector 24 and the second swing seat 3 are linked by a linkage structure, and the linkage structure is configured so that when the back connector 24 rotates on the first swing seat 2, it drives the second swing seat 3 to swing back and forth; the back connector 24 is linked with the second swing seat 3, and when the chair back reclines, the second swing seat 3 can also swing backward and tilt the front part, which makes the overall comfort stronger; the forward and backward swinging of the second swing seat 3 can be directly applied to the seat-back linkage when the chair back reclines.

[0052] Furthermore, the linkage structure includes a sliding rotating member 25 and a sliding rotating groove 26. A connecting seat 27 extends obliquely downward from the rear of the second swing seat 3. The connecting seat 27 is connected to the sliding rotating member 25. The sliding rotating member 25 is arranged in the left and right directions. The sliding rotating groove 26 is opened on the back connecting member 24. The sliding rotating member 25 is inserted in the sliding rotating groove 26. When the back connecting member 24 rotates on the first swing seat 2, the sliding rotating member 25 and the sliding rotating groove 26 move and rotate relative to each other, driving the second swing seat 3 to swing back and forth. This scheme is used to realize the linkage between the back connecting member 24 and the second swing seat 3, thereby realizing the seat-back linkage, and the structure is simpler.

Claims

1. A locking mechanism, characterized in that: It includes a base, a moving base, a control member and a locking member, the moving base is rotatably arranged on the base, the locking member is slidably arranged on the base and the moving base, and the control member is arranged on the base or the moving base; a locking hole is opened on one of the base or the moving base, and the control member is configured to control the locking member to slide and enter or leave the locking hole; when the locking member enters the locking hole, the moving base and the base are locked and relatively stationary, and when the locking member leaves the locking hole, the moving base and the base are unlocked; it also includes an adjustment feedback component, the adjustment feedback component is arranged between the control member and the base or between the control member and the moving base, the adjustment feedback component includes an adjustment moving member and a feedback part, and the adjustment feedback component is configured so that when the control member moves, the adjustment moving member and the feedback part move relatively, the adjustment moving member moves from one side of the feedback part through the feedback part to the other side of the feedback part, and gives the user adjustment feedback.

2. The locking mechanism according to claim 1, characterized in that: The feedback part is a convex part, and the feedback part or the adjusting moving part has elastic deformation capability, and the change of the relative position between the adjusting moving part and the feedback part is achieved through elastic deformation.

3. The locking mechanism according to claim 1, characterized in that: The control member and the locking member are arranged in the same direction, and the control member is slidably arranged on the base. A push-pull torsion spring is arranged between the control member and the locking member. One of the torsion spring arms of the push-pull torsion spring is fixed on the control member, and the other torsion spring arm of the push-pull torsion spring is arranged on the locking member. The push-pull torsion spring is configured to drive the locking member to move through the push-pull torsion spring when the control member moves.

4. The locking mechanism according to claim 3, characterized in that: The push-pull torsion spring has a bending portion, and the adjusting moving part is the bending portion; the feedback part is a convex portion, which is arranged on the base, and the bending portion abuts against the base. When the operating rod moves, the bending portion passes over the convex portion to allow the locking part to enter or leave the locking hole.

5. The locking mechanism according to claim 1, characterized in that: The control member is perpendicular to the locking member, and the control member is rotatably arranged on the moving seat. A push-pull torsion spring is arranged between the control member and the locking member, one of the torsion spring arms of the push-pull torsion spring is fixed on the control member, and the other torsion spring arm of the push-pull torsion spring is arranged on the locking member; the push-pull torsion spring is configured to drive the locking member to move through the push-pull torsion spring when the control member rotates.

6. The locking mechanism according to claim 1, characterized in that: A gear seat is provided on the moving seat, a synchronously rotating gear member is sleeved on the control member, and the adjusting moving member is the gear member; a gear slot is provided on the gear seat, and the gear member is inserted into the gear slot; the gear slot has a first gear position and a second gear position, and a feedback part is provided between the first gear position and the second gear position; the feedback part is a convex part, which protrudes toward the inside of the gear slot, and the gear member switches between the first gear position and the second gear position by crossing the convex part.

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