Handle angle adjusting structure

Abstract

The utility model discloses a handle angle adjusting structure, which relates to the field of mechanical joint structures, and adopts the technical scheme that the handle angle adjusting structure comprises a handle and a base, a notch of the handle cavity groove and a notch of the base cavity groove are folded to form an angle adjusting cavity, and the angle adjusting cavity is in axial sliding fit with a handle locking block; the handle locking block is matched with the side wall of the angle adjusting cavity through an axially-arranged key groove structure, the handle cavity groove is provided with a contact inclined face and a handle driving block, and the handle driving block is provided with a driving inclined face matched with the contact inclined face. A handle elastic piece is arranged between the handle locking block and the base cavity groove. The handle driving block is connected with one end of a driving rope, and the other end of the driving rope extends to the handle; the handle driving block is adopted to lock and unlock the relative angle of the handle and the base, the control process is more efficient and convenient, and stability and firmness are better.

Description

Technical Field

[0001] This utility model relates to the field of mechanical joint structures, and in particular to a handle angle adjustment structure. Background Technology

[0002] There are numerous joint structures in fields such as folding strollers, the most common being the stroller handle. The handle joint typically needs to be designed with an adjustable angle to accommodate different users. Currently, related structures, such as the lockable handle joint for folding strollers disclosed in patent document CN102336211A, use a spring pin to fix the inner shaft pin. While this solution allows for angle adjustment, relying solely on a spring pin to lock the angle results in insufficient stability; the spring pin can easily be broken with slight force. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a handle angle adjustment structure, which uses a handle drive block to lock and unlock the relative angle between the handle and the base, resulting in better stability and robustness, more efficient and convenient control, and better stability.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a handle angle adjustment structure, including a handle and a base;

[0005] The handle is provided with a handle turntable at its end, and the surface of the handle turntable is provided with a handle cavity groove; the base is provided with a base turntable, and the surface of the base turntable is provided with a base cavity groove; the openings of the handle cavity groove and the base cavity groove are closed to form an angle adjustment cavity, and the handle turntable and the base turntable are matched and rotate relative to each other.

[0006] The angle adjustment cavity is axially slidably fitted with a handle locking block;

[0007] The handle locking block and the side wall of the angle adjustment cavity are engaged by an axially arranged keyway structure, and the keyway structure is evenly distributed in the circumferential direction of the handle locking block;

[0008] The handle cavity groove is provided with a contact slope, the handle cavity groove is provided with a handle driving block, and the handle driving block is provided with a driving slope that is adapted to the contact slope.

[0009] A handle elastic element is provided between the handle locking block and the base cavity;

[0010] The handle drive block is connected to one end of the drive cable, and the other end of the drive cable extends to the handle;

[0011] When the other end of the drive cord is not pulled, the handle elastic element pushes the handle locking block to move towards the handle cavity groove side, the handle drive block moves closer to the bottom of the handle cavity groove, the contact inclined surface and the drive inclined surface move in the same direction, and the handle drive block is simultaneously located in the handle cavity groove and the base cavity groove.

[0012] When the other end of the drive cord is pulled, the contact inclined surface and the drive inclined surface move in opposite directions, the handle drive block moves away from the bottom of the handle cavity, the handle drive block pushes the handle locking block out of the handle cavity, and the handle locking block is only located in the base cavity.

[0013] In this design, because the handle locking block engages with the sidewall of the angle adjustment cavity using a keyway structure, the handle driving block can only slide axially and cannot rotate circumferentially relative to the base cavity and handle cavity. Unless the handle locking block is only located within the base cavity, the handle driving block needs to be located in both the base cavity and handle cavity simultaneously to lock their relative angle. Furthermore, the keyway structure must be in the circumferential direction. Therefore, after the relative angle between the handle cavity and the base cavity changes, as long as the keyway structure is aligned, the handle locking block can be re-engaged with both the base cavity and handle cavity under the same structure to re-lock them.

[0014] The axial position of the handle locking block in the angle adjustment cavity is determined by the handle elastic element and the handle drive element. Under normal conditions, the handle elastic element pushes the handle locking block to be located only in the handle cavity groove. Since the handle drive element is provided with a drive slope that cooperates with the contact slope, when the drive cable is pulled, the handle drive element will move to one side of the base cavity groove, so that the handle locking block is located in both the base cavity groove and the handle cavity groove at the same time, thereby locking the relative angle between the base cavity groove and the handle cavity groove.

[0015] Preferably, the handle cavity groove has an inner shaft at its center, and the handle locking block is slidably fitted onto the inner shaft. Using an inner shaft improves the stability of the rotational engagement between the handle and the base.

[0016] Preferably, a lifting groove is provided at the bottom of the handle cavity, and the handle drive block is slidably fitted within the lifting groove. This improves the stability of the axial movement of the handle drive block.

[0017] Preferably, one end of the inner shaft is fixed to the bottom of the lifting groove, and the handle drive block has a strip-shaped window through which the inner shaft passes. This further improves the stability of the handle drive block without interfering with the inner shaft.

[0018] Preferably, the handle is provided with a squeezing part, the squeezing part is longitudinally slidably engaged with a driving slider, the driving slider is provided with a squeezing slope, the squeezing part is laterally slidably engaged with an unlocking switch, one side of the unlocking switch is provided with a squeezing section, the other side of the unlocking switch is provided with an unlocking slope adapted to the squeezing slope, an unlocking spring is provided between the unlocking switch and the squeezing part, the unlocking spring pushes the unlocking switch away from the driving slider, the driving slider slides towards one end of the driving cord, pressing the unlocking switch, the unlocking slope pushes the squeezing slope, causing the driving slider to slide away from the driving cord.

[0019] By pushing the release ramp of the unlocking switch, the drive slider can be pushed to slide axially, which in turn pulls the drive cable. Pulling the handle drives the block to move, making control simpler and more efficient.

[0020] Preferably, the base is provided with base cavity grooves at both ends corresponding to the handle, and the handle is provided with handle cavity grooves at both ends. The handle drive block is provided in each of the two handle cavity grooves. The two drive ropes extend from the two handle drive blocks to the squeezing part. The ends of the two drive ropes are connected to the two drive sliders respectively. The unlocking switch is provided with two unlocking inclined surfaces, and the two unlocking inclined surfaces are provided in a one-to-one correspondence with the two drive sliders.

[0021] The two unlocking ramps and two drive sliders enable simultaneous control of two drive cables, and the pressure on both sides of the unlocking switch is more balanced.

[0022] Preferably, the pressing part is disposed on the sliding positioning block, and the side wall of the sliding positioning block is provided with a sliding positioning groove. One side of the unlocking switch extends slidably from the opening of the sliding positioning groove into the interior. The driving slider slides within the sliding positioning groove along its length. The unlocking spring is disposed between the two driving sliders, and the two ends of the unlocking spring abut against the bottom of the sliding positioning groove and the handle driving block, respectively. This facilitates more stable sliding of the two driving sliders.

[0023] Preferably, the handle has an inner channel through which the drive cord extends from the handle drive block to the sliding positioning block, thus avoiding interference with external structures.

[0024] The beneficial effects of this utility model are:

[0025] The handle drive block is used to lock and unlock the relative angle between the handle and the base, making the control process more efficient and convenient, and providing better stability and robustness. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only four of the drawings in this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0028] Figure 2 This is a schematic diagram of a partial explosion according to an embodiment of the present invention;

[0029] Figure 3 This is an exploded view of the base turntable from the inside perspective of an embodiment of the present invention;

[0030] Figure 4 This is an exploded view of the base turntable from the outer perspective of an embodiment of the present invention;

[0031] The components are as follows: 1. Handle; 2. Handle turntable; 3. Handle cavity; 4. Base turntable; 5. Base cavity; 6. Handle locking block; 7. Keyway structure; 8. Contact slope; 9. Handle drive block; 10. Drive slope; 11. Handle elastic element; 12. Drive rope; 13. Inner shaft; 14. Lifting groove; 15. Strip window; 16. Drive slider; 17. Extrusion slope; 18. Unlock switch; 19. Extrusion section; 20. Unlock slope; 21. Unlock spring; 22. Sliding positioning block. Detailed Implementation

[0032] To enhance understanding of this utility model, it will be described in further detail below with reference to the accompanying drawings and embodiments. These embodiments are only used to explain this utility model and do not limit the scope of protection of this utility model.

[0033] Example

[0034] like Figure 1 As shown, the handle angle adjustment structure is characterized by comprising a handle 1 and a base. The base is specifically mounted on the vehicle body.

[0035] The handle 1 is provided with a handle turntable 2 at its end, and the surface of the handle turntable 2 is provided with a handle cavity groove 3; the base is provided with a base turntable 4, and the surface of the base turntable 4 is provided with a base cavity groove 5; the openings of the handle cavity groove 3 and the base cavity groove 5 are closed to form an angle adjustment cavity, and the handle turntable 2 and the base turntable 4 are matched and rotated relative to each other.

[0036] The angle adjustment cavity is axially slidingly fitted with a handle locking block 6.

[0037] The handle locking block 6 is engaged with the side wall of the angle adjustment cavity via an axially arranged keyway structure 7, which is evenly distributed around the circumference of the handle locking block 6. The keyway structure in this design is a spline fit.

[0038] The handle cavity 3 is provided with a contact slope 8, the handle cavity 3 is provided with a handle drive block 9, and the handle drive block 9 is provided with a drive slope 10 adapted to the contact slope 8.

[0039] A handle elastic element 11 is provided between the handle locking block 6 and the base cavity 5.

[0040] The handle drive block 9 is connected to one end of the drive cable 12. In this embodiment, a contact slope 8 is provided on the side of the handle drive block 9 away from the drive cable 12, and the other end of the drive cable 12 extends to the handle 1.

[0041] When the other end of the drive cord 12 is not pulled, the handle elastic element 11 pushes the handle locking block 6 to move towards the handle cavity groove 3, the handle driving block 9 moves close to the bottom of the handle cavity groove 3, the contact inclined surface 8 and the driving inclined surface 10 move in the same direction, and the handle driving block 9 is simultaneously located in the handle cavity groove 3 and the base cavity groove 5.

[0042] When the other end of the drive cord 12 is pulled, the contact inclined surface 8 and the drive inclined surface 10 move in opposite directions, the handle drive block 9 moves away from the bottom of the handle cavity groove 3, and the handle drive block 9 pushes the handle locking block 6 out of the handle cavity groove 3. The handle locking block 6 is only located in the base cavity groove 5.

[0043] In this design, because the handle locking block 6 is engaged with the side wall of the angle adjustment cavity using a keyway structure 7, the handle driving block 9 can only slide axially relative to the base cavity 5 and the handle cavity 3 and cannot rotate circumferentially. Unless the handle locking block 6 is only located in the base cavity 5, the handle driving block 9 needs to be located in both the base cavity 5 and the handle cavity 3 simultaneously to lock their relative angle. Furthermore, the keyway structure 7 must be in the circumferential direction. Therefore, after the relative angle between the handle cavity 3 and the base cavity 5 changes, as long as the keyway structure 7 is aligned, the handle locking block 6 can be engaged with both the base cavity 5 and the handle cavity 3 simultaneously under this structure to relock them.

[0044] The axial position of the handle locking block 6 in the angle adjustment cavity is determined by the handle elastic element 11 and the handle 1 driving element. Under normal conditions, the handle elastic element 11 pushes the handle locking block 6 to be located only in the handle cavity groove 3. Since the handle 1 driving element is provided with a driving inclined surface 10 that cooperates with the contact inclined surface 8, when the driving cable 12 is pulled, the handle 1 driving element will move to one side of the base cavity groove 5, so that the handle locking block 6 is located in both the base cavity groove 5 and the handle cavity groove 3 at the same time, thereby locking the relative angle between the base cavity groove 5 and the handle cavity groove 3.

[0045] An inner shaft 13 is provided at the center of the handle cavity 3, and the handle locking block 6 is slidably engaged with the inner shaft 13. The use of the inner shaft 13 can improve the stability of the rotational engagement between the handle 1 and the base.

[0046] The bottom of the handle cavity 3 is provided with a lifting groove 14, and the handle drive block 9 is slidably fitted within the lifting groove 14. This improves the stability of the axial movement of the handle drive block 9.

[0047] One end of the inner shaft 13 is fixed to the bottom of the lifting groove 14, and the handle drive block 9 has a strip-shaped window hole 15 through which the inner shaft 13 passes. This further improves the stability of the handle drive block 9 and prevents it from interfering with the inner shaft 13.

[0048] The handle 1 is provided with a squeezing part, and the squeezing part is longitudinally slidably engaged with a drive slider 16. The drive slider 16 is provided with a squeezing inclined surface 17. The squeezing part is laterally slidably engaged with an unlocking switch 18. One side of the unlocking switch 18 is provided with a squeezing section 19, and the other side of the unlocking switch 18 is provided with an unlocking inclined surface 20 adapted to the squeezing inclined surface 17. An unlocking spring 21 is provided between the unlocking switch 18 and the squeezing part. The unlocking spring 21 pushes the unlocking switch 18 to move away from the drive slider 16. The drive slider 16 slides towards one end of the drive cord 12. When the unlocking switch 18 is pressed, the unlocking inclined surface 20 pushes the squeezing inclined surface 17, causing the drive slider 16 to slide away from the drive cord 12.

[0049] By pushing the squeezing slope 17 through the unlocking slope 20 of the unlocking switch 18, the drive slider 16 can be pushed to slide axially, which in turn pulls the drive rope 12, causing the handle to move the drive block 9, making the control simpler and more efficient.

[0050] The base is provided with base cavity grooves 5 at both ends corresponding to the handle 1, and handle cavity grooves 3 are provided at both ends of the handle 1. The handle drive block 9 is provided in each of the two handle cavity grooves 3. The two drive ropes 12 extend from the two handle drive blocks 9 to the squeezing part. The ends of the two drive ropes 12 are connected to the two drive sliders 16 respectively. The unlocking switch 18 is provided with two unlocking inclined surfaces 20, and the two unlocking inclined surfaces 20 are provided in a one-to-one correspondence with the two drive sliders 16.

[0051] The two unlocking ramps 20 and the two drive sliders 16 enable simultaneous control of the two drive cables 12, and the pressure on both sides of the unlocking switch 18 is more balanced. In this embodiment, the two unlocking ramps 20 are symmetrically arranged, and the two drive sliders 16 are also symmetrically distributed.

[0052] The pressing part is disposed on the sliding positioning block 22. The sliding positioning block 22 has a sliding positioning groove on its side wall. One side of the unlocking switch 18 extends slidably from the opening of the sliding positioning groove into the interior. The driving slider 16 slides within the sliding positioning groove along its length. The unlocking spring 21 is disposed between the two driving sliders 16. The two ends of the unlocking spring 21 abut against the bottom of the sliding positioning groove and the handle driving block 9, respectively. This facilitates more stable sliding of the two driving sliders 16.

[0053] The handle 1 is provided with an inner channel through which the drive cord 12 extends from the handle drive block 9 to the sliding positioning block 22, thus avoiding interference with external structures.

[0054] The beneficial effects of this utility model are:

[0055] The overall solution uses handle drive block 9 to lock and unlock the relative angle between handle 1 and base, making the control process more efficient and convenient, and improving stability and robustness.

[0056] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A handle angle adjustment structure, characterized in that, Includes handle (1) and base; The handle (1) is provided with a handle turntable (2) at its end, and the handle turntable (2) is provided with a handle cavity groove (3) on its surface; the base is provided with a base turntable (4), and the base turntable (4) is provided with a base cavity groove (5) on its surface; the openings of the handle cavity groove (3) and the base cavity groove (5) are joined together to form an angle adjustment cavity, and the handle turntable (2) and the base turntable (4) are matched and rotated relative to each other; The angle adjustment cavity is axially slidably fitted with a handle locking block (6); The handle locking block (6) and the side wall of the angle adjustment cavity are engaged by an axially arranged keyway structure (7), and the keyway structure (7) is evenly distributed in the circumferential direction of the handle locking block (6). The handle cavity groove (3) is provided with a contact slope (8), the handle cavity groove (3) is provided with a handle drive block (9), and the handle drive block (9) is provided with a drive slope (10) adapted to the contact slope (8). A handle elastic element (11) is provided between the handle locking block (6) and the base cavity (5); The handle drive block (9) is connected to one end of the drive cord (12), and the other end of the drive cord (12) extends to the handle (1); When the other end of the drive cord (12) is not pulled, the handle elastic element (11) pushes the handle locking block (6) to move toward the handle cavity (3) side, the handle drive block (9) moves close to the bottom of the handle cavity (3), the contact inclined surface (8) and the drive inclined surface (10) move in the same direction, and the handle drive block (9) is simultaneously located in the handle cavity (3) and the base cavity (5); When the other end of the drive cord (12) is pulled, the contact inclined surface (8) and the drive inclined surface (10) move in opposite directions, the handle drive block (9) moves away from the bottom of the handle cavity groove (3), the handle drive block (9) pushes the handle locking block (6) out of the handle cavity groove (3), and the handle locking block (6) is only located in the base cavity groove (5).

2. The handle angle adjustment structure according to claim 1, characterized in that: The handle cavity groove (3) is provided with an inner shaft (13) at its center, and the handle locking block (6) is slidably fitted to the inner shaft (13).

3. The handle angle adjustment structure according to claim 2, characterized in that: The bottom of the handle cavity groove (3) is provided with a lifting groove (14), and the handle drive block (9) is slidably engaged in the lifting groove (14).

4. The handle angle adjustment structure according to claim 3, characterized in that: One end of the inner shaft (13) is fixed to the bottom of the lifting groove (14), and the handle drive block (9) provides a strip window (15) through which the inner shaft (13) passes.

5. The handle angle adjustment structure according to claim 4, characterized in that: The handle (1) is provided with a squeezing part, and the squeezing part is longitudinally slidably fitted with a driving slider (16). The driving slider (16) is provided with a squeezing inclined surface (17). The squeezing part is laterally slidably fitted with an unlocking switch (18). One side of the unlocking switch (18) is provided with a squeezing section (19), and the other side of the unlocking switch (18) is provided with an unlocking inclined surface (20) adapted to the squeezing inclined surface (17). An unlocking spring (21) is provided between the unlocking switch (18) and the squeezing part. The unlocking spring (21) pushes the unlocking switch (18) to move away from the driving slider (16). The driving slider (16) slides towards one end of the driving cord (12). When the unlocking switch (18) is pressed, the unlocking inclined surface (20) pushes the squeezing inclined surface (17), causing the driving slider (16) to slide away from the driving cord (12).

6. The handle angle adjustment structure according to claim 5, characterized in that: The base is provided with base cavity grooves (5) at both ends of the handle (1), and handle cavity grooves (3) are provided at both ends of the handle (1). The handle drive blocks (9) are provided in the two handle cavity grooves (3). The two drive ropes (12) extend from the two handle drive blocks (9) to the squeezing part. The ends of the two drive ropes (12) are connected to the two drive sliders (16). The unlocking switch (18) is provided with two unlocking inclined surfaces (20). The two unlocking inclined surfaces (20) are provided in a one-to-one correspondence with the two drive sliders (16).

7. The handle angle adjustment structure according to claim 6, characterized in that: The pressing part is disposed on the sliding positioning block (22), and the side wall of the sliding positioning block (22) is provided with a sliding positioning groove. One side of the unlocking switch (18) extends slidably from the opening of the sliding positioning groove into the interior. The driving slider (16) slides and engages in the sliding positioning groove along the length direction. The unlocking spring (21) is disposed between the two driving sliders (16), and the two ends of the unlocking spring (21) abut against the bottom of the sliding positioning groove and the handle driving block (9) respectively.

8. The handle angle adjustment structure according to claim 7, characterized in that: The handle (1) is provided with an inner channel through which the drive cord (12) extends from the handle drive block (9) to the sliding positioning block (22).

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