A neck-hanging support

Abstract

The utility model relates to the technical field of shooting support, specifically relates to a neck-hanging support. The neck-hanging support includes mounting seat, fixed mechanism, neck-hanging piece and lock catch mechanism, and fixed mechanism is connected with mounting seat, and fixed mechanism is used for connecting shooting equipment, one end of neck-hanging piece is connected with mounting seat, and the other end is provided with the joint part, and the lock catch mechanism includes the push -push assembly and the spacing piece of mounting seat, and push -push assembly partly exposes in the outside of mounting seat, and push -push assembly is provided with first gear tooth, and the second gear tooth of the meshing of first gear tooth is provided with the buckling part on the spacing piece, and the buckling part can cooperate with the joint part to lock the neck-hanging piece, and push -push assembly force drives first gear tooth to remove, and then through the meshing effect of first gear tooth and second gear tooth drives the spacing piece to move in mounting seat, to make the buckling part separate the joint part, realize unlocking. The application can greatly reduce the jamming feeling in the unlocking process of neck-hanging piece, make the operation hand feeling more smooth, improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of shooting bracket technology, and in particular to a neck bracket. Background Technology

[0002] Currently, with the improvement of people's living standards, photography has gradually integrated into daily life from a professional field, becoming an important way for the public to record life's moments. A neck mount has recently appeared on the market, which can be hung around the neck and can also connect to shooting devices such as mobile phones or cameras. When not using the shooting equipment, it can be hung around the neck using the neck mount, freeing up the hands.

[0003] To facilitate user comfort, neck braces generally employ an openable / closable neck strap. One end of the neck strap is unlocked and locked via a push-button mechanism on the mounting base. Pushing the button opens the neck strap for easy insertion, while resetting the button automatically locks it, ensuring a secure fit. However, existing neck braces suffer from issues such as jamming and uneven resistance during unlocking, resulting in a poor user experience. Utility Model Content

[0004] This utility model provides a neck brace to solve the problem of jamming and uneven resistance during the unlocking process of the neck brace, which leads to a poor user experience.

[0005] This utility model discloses a neck brace, comprising:

[0006] Mounting base;

[0007] A fixing mechanism is connected to the mounting base, and the fixing mechanism is used to connect the shooting equipment;

[0008] The neck hanger has one end connected to the mounting base and the other end provided with a snap-fit ​​part;

[0009] The locking mechanism includes a pushing component and a limiting component disposed on the mounting base. The pushing component is partially exposed outside the mounting base. The pushing component is provided with a first gear tooth. The limiting component is provided with a fastening part and a second gear tooth that meshes with the first gear tooth. The fastening part can cooperate with the snap-fit ​​part to lock the neck hanger.

[0010] The pushing component is driven by force to move the first gear tooth, and then the meshing action of the first gear tooth and the second gear tooth drives the limiting member to move within the mounting base, so that the fastening part disengages from the locking part and unlocks.

[0011] Optionally, the limiting member includes a transmission part and a swing arm part connected to the transmission part. The second gear tooth is disposed on the transmission part on the side facing the first gear tooth. The fastening part is disposed on the transmission part. The swing arm part is rotatably mounted on the mounting base so as to drive the fastening part to engage with or move away from the locking part.

[0012] Optionally, the mounting base is provided with a guide arm, the guide arm including a first guide surface arranged along the rotation direction of the swing arm, and the transmission part including a second guide surface adapted to the first guide surface. When the swing arm rotates within the mounting base, the second guide surface slides along the first guide surface.

[0013] Optionally, the mounting base is further provided with a positioning post and a first limiting arm, and the locking mechanism further includes a torsion spring. The swing arm is provided with a positioning hole, and the positioning post passes through the mounting hole of the torsion spring and the positioning hole. One torsion arm end of the torsion spring abuts against the swing arm, and the other torsion arm end abuts against the first limiting arm, so as to store energy under pressure deformation when the fastening part is disengaged from the snap-fit ​​part, and reset the fastening part when the energy is released.

[0014] Optionally, the mounting base is also provided with a second limiting arm, which abuts against the swing arm when the torsion spring releases its energy and drives the swing arm to rotate to its maximum angle.

[0015] Optionally, the mounting base is provided with a first through hole, a second through hole, and a guide hole located between the first through hole and the second through hole. The guide hole extends along the line connecting the first through hole and the second through hole. One end of the neck hanger passes through the first through hole and is connected to the mounting base, while the other end can pass through the second through hole, so that the snap-fit ​​part cooperates with the fastening part to lock the neck hanger. The pushing component moves along the guide hole under force.

[0016] Optionally, the pushing assembly includes a push button and a transmission seat. The first gear tooth is located on the side of the transmission seat facing away from the push button. The push button includes a guide rod and a pushing part exposed outside the mounting seat. One end of the guide rod is connected to the pushing part, and the other end passes through the guide hole and is connected to the transmission seat. The pushing part is driven by force to move the guide rod and the guide hole.

[0017] Optionally, a hook portion is provided at one end of the guide rod away from the pushing part, and a slot is provided on the transmission seat. The guide rod is inserted into the slot, and the hook portion abuts against the side of the transmission seat opposite to the pushing part to prevent the push button from disengaging from the mounting seat.

[0018] Optionally, the snap-fit ​​part is a snap-fit ​​slot, and the fastening part is a snap-fit ​​block that can snap into the snap-fit ​​slot.

[0019] Optionally, the other end of the neck hanger includes an end face and a peripheral surface surrounding the end face, the slot is disposed on the peripheral surface, and a first chamfer is provided at the connection position between the end face and the peripheral surface; and / or, a second chamfer is provided at the connection position between the end wall of the snap-fit ​​block near the second through hole and the groove wall of the slot.

[0020] The beneficial effects of the neck hanger provided in this embodiment of the utility model are as follows: by setting a fixing mechanism and connecting it to the mounting base, the fixing mechanism can connect to the shooting device and fix the shooting device on the neck hanger. The force of the pushing component of the locking mechanism can drive the first gear on the pushing component to move. Thus, through the meshing action of the first gear and the second gear on the limiting member, the fastening part on the limiting member is driven away from the snap-fit ​​part on the neck hanger, thereby unlocking the neck hanger. Since the meshing action of the first gear and the second gear makes the force between the pushing component and the limiting member gradually transmitted, it can greatly reduce the feeling of jamming during the unlocking process of the neck hanger, making the operation smoother and improving the user experience. Attached Figure Description

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 This is a three-dimensional structural diagram of the neck brace according to an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the locking assembly of this utility model in the state of being installed on the mounting base and locking the neck piece;

[0024] Figure 3 This is a three-dimensional structural diagram of the limiting member according to an embodiment of the present utility model;

[0025] Figure 4 This is a three-dimensional structural diagram of the pushing component according to an embodiment of the present utility model;

[0026] Figure 5 This is a partial internal structure diagram of the mounting base according to an embodiment of the present utility model;

[0027] Figure 6 This is a partial structural schematic diagram of the neck hanger according to an embodiment of the present utility model.

[0028] The labels for the attached figures are as follows:

[0029] 10. Mounting base; 10a. First through hole; 10b. Second through hole; 10c. Guide hole; 11. Guide arm; 11a. First guide surface; 12. Positioning post; 13. First limiting arm; 14. Second limiting arm; 20. Fixing mechanism; 30. Neck hanger; 30a. End face; 30b. Peripheral surface; 30c. First chamfer; 31. Snap-fit ​​part; 31a. Slot; 40. Locking mechanism; 41. Pushing assembly; 411. Push button; 4111. Guide rod; 41111. Hook part; 4112. Pushing part; 412. Transmission seat; 4121. First gear tooth; 412a. Slot; 42. Limiting part; 42a. Second chamfer; 421. Fastening part; 4211. Snap-fit ​​block; 422. Second gear tooth; 423. Transmission part; 423a. Second guide surface; 424. Swing arm part; 423a. Positioning hole; 43. Torsion spring. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0031] This utility model embodiment provides a neck brace, such as Figures 1 to 4 As shown, the neck bracket includes a mounting base 10, a fixing mechanism 20, a neck hanging component 30, and a locking mechanism 40.

[0032] The fixing mechanism 20 is connected to the mounting base 10, and the fixing mechanism 20 is used to connect the shooting equipment.

[0033] One end of the neck hanger 30 is connected to the mounting base 10, and the other end is provided with a snap-fit ​​part 31.

[0034] The locking mechanism 40 includes a pushing component 41 and a limiting member 42 disposed on the mounting base 10. The pushing component 41 is partially exposed outside the mounting base 10. The pushing component 41 is provided with a first gear 4121. The limiting member 42 is provided with a fastening part 421 and a second gear 422 that meshes with the first gear 4121. The fastening part 421 can cooperate with the locking part 31 to lock the neck hanger 30.

[0035] The pushing component 41 is driven by force to move the first gear 4121, and then the meshing action of the first gear 4121 and the second gear 422 drives the limiting member 42 to move within the mounting base 10, so that the fastening part 421 disengages from the locking part 31 and unlocks.

[0036] In this embodiment, the neck hanger is connected to the mounting base 10 via a fixing mechanism 20. The fixing mechanism 20 can connect to a shooting device and fix the shooting device on the neck hanger. When the pushing component 41 of the locking mechanism 40 is subjected to force, it can drive the first gear 4121 on the pushing component 41 to move. Thus, through the meshing action of the first gear 4121 and the second gear 422 on the limiting member 42, the fastening part 421 on the limiting member 42 is driven away from the snap-fit ​​part 31 on the neck hanger 30, thereby unlocking the neck hanger 30. Since the meshing action of the first gear 4121 and the second gear 422 causes the force between the pushing component 41 and the limiting member 42 to be gradually transmitted, the feeling of jamming during the unlocking process can be greatly reduced, making the operation smoother and improving the user experience.

[0037] refer to Figures 2 to 4 In an optional embodiment of this application, the limiting member 42 includes a transmission part 423 and a swing arm part 424 connected to the transmission part 423. The second gear tooth 422 is disposed on the side of the transmission part 423 facing the first gear tooth 4121. The fastening part 421 is disposed on the transmission part 423. The swing arm part 424 is rotatably mounted on the mounting base 10 so as to drive the fastening part 421 to engage with or move away from the locking part 31.

[0038] Specifically, the second gear 422 on the transmission part 423 meshes with the first gear 4121 of the pushing assembly 41. When the pushing assembly 41 is driven by force to move the first gear 4121, the motion force of the pushing assembly 41 is transmitted to the transmission part 423 through the meshing action between the first gear 4121 and the second gear 422, causing the transmission part 423 to generate corresponding motion. Since the swing arm part 424 is rotatably mounted on the mounting base 10, the movement of the transmission part 423 will drive the swing arm part 424 to rotate around its rotation fulcrum, thereby realizing the transmission of force and converting the pushing force of the pushing assembly 41 into the rotational power of the swing arm part 424. This drives the fastening part 421 to rotate to engage with the snap-fit ​​part 31 on the neck hanger 30, thereby locking the neck hanger 30 on the mounting base 10, or driving the fastening part 421 to rotate away from the snap-fit ​​part 31 on the neck hanger 30, thereby unlocking the neck hanger 30. The above structural design allows the force to be directly transmitted from the first gear tooth 4121 to the latching part 421 on the transmission part 423, reducing energy loss in the intermediate links and ensuring that the small movements of the pushing component 41 can be accurately converted into the displacement of the latching part 421.

[0039] In other embodiments, the pushing component 41 may be forced to move the first gear 4121, and the meshing action of the first gear 4121 and the second gear 422 may cause the limiting member 42 to move horizontally on the mounting base 10, thereby causing the fastening part 421 to move to engage with the snap-fit ​​part 31 on the neck hanger 30, so as to lock the neck hanger 30 on the mounting base 10, or to move the fastening part 421 away from the snap-fit ​​part 31 on the neck hanger 30, thereby unlocking the neck hanger 30.

[0040] refer to Figure 2 and Figure 5 In an optional embodiment of this application, a guide arm 11 is provided on the mounting base 10. The guide arm 11 includes a first guide surface 11a arranged along the rotation direction of the swing arm portion 424. The transmission portion 423 includes a second guide surface 422a adapted to the first guide surface 11a. When the swing arm portion 424 rotates within the mounting base 10, the second guide surface 422a slides along the first guide surface 11a.

[0041] Specifically, the first guide surface 11a, designed along the rotation direction of the swing arm 424, is adapted to the second guide surface 422a of the transmission part 423. This guide surface 11a guides the transmission part 423 to move along a fixed arc trajectory, preventing deviation and further reducing fluctuations. This ensures that the fastening part 421 is accurately aligned with the locking part 31, improving the reliability of locking and unlocking the neck hanger 30, and further improving the smoothness of unlocking the neck hanger 30. In addition, the first guide surface 11a and the second guide surface 422a can distribute some of the lateral force generated by the meshing of the first gear teeth 4121 and the second gear teeth 422 onto the guide arm 11, alleviating single-point pressure, reducing the wear rate of the first gear teeth 4121 and the second gear teeth 422, extending the service life of the locking mechanism 40, and adapting to scenarios with frequent unlocking.

[0042] Further reference Figures 2 to 5 The mounting base 10 is also provided with a positioning post 12 and a first limiting arm 13. The locking mechanism 40 also includes a torsion spring 43. The swing arm 424 is provided with a positioning hole 423a. The positioning post 12 passes through the mounting hole and the positioning hole 423a of the torsion spring 43. One torsion arm end of the torsion spring 43 abuts against the swing arm 424, and the other torsion arm end abuts against the first limiting arm 13, so that it is subjected to pressure deformation to store energy when the fastening part 421 is disengaged from the locking part 31, and resets the fastening part 421 when the energy is released.

[0043] Specifically, by setting a torsion spring 43, during unlocking, the swing arm 424 rotates, causing the fastening part 421 to disengage from the locking part 31. During this process, the swing arm 424 presses one torsion arm end of the torsion spring 43, causing the torsion spring 43 to deform under pressure and store energy. After the unlocking force is released, the torsion spring 43 releases energy and pushes the swing arm 424 to rotate in the opposite direction through elastic force, causing the fastening part 421 to automatically return to the locked position that cooperates with the locking part 31, eliminating the need for manual reset by the user and improving operational convenience. On the other hand, the torsion spring 43 normally applies a continuous elastic force to the swing arm 424, ensuring that the fastening part 421 always presses tightly against the locking part 31, enhancing the tightness of the fit between the two, resisting slight vibrations or external interference, preventing the fastening part 421 from accidentally disengaging from the locking part 31 and causing the neck hook 30 to loosen, thus improving the locking reliability of the locking mechanism 40. The positioning post 12 passes through both the mounting hole of the torsion spring 43 and the positioning hole 423a of the swing arm 424, serving the dual function of positioning the torsion spring 43 and limiting the rotation fulcrum of the swing arm 424. The first limiting arm 13 provides stable support for the other torsion arm end of the torsion spring 43. The three components work together compactly without the need for additional complex fixing structures, adapting to the limited internal space of the mounting base 10 and meeting the miniaturization design requirements of the neck hanger.

[0044] Further reference Figures 2 to 5 The mounting base 10 is also provided with a second limiting arm 14. When the torsion spring 43 releases energy and drives the swing arm 424 to rotate to the maximum angle, the second limiting arm 14 abuts against the swing arm 424.

[0045] When the user unlocks the neck hanger 30 and removes it from the mounting base 10, the elastic potential energy of the torsion spring 43 may cause the swing arm 424 to continue rotating, resulting in excessive rotation. To solve this problem, a second limit arm 14 is provided. When the torsion spring 43 releases its energy and causes the swing arm 424 to rotate to its maximum angle, the second limit arm 14 abuts against the swing arm 424, which can limit the rotation angle of the swing arm 424, prevent the swing arm 424 from rotating excessively, prevent the second gear 422 on the transmission part 423 from disengaging from the first gear 4121, and improve the stability of the locking mechanism 40.

[0046] refer to Figure 1 , Figure 2 and Figure 5 In an optional embodiment of this application, the mounting base 10 is provided with a first through hole 10a, a second through hole 10b, and a guide hole 10c located between the first through hole 10a and the second through hole 10b. The guide hole 10c extends along the line connecting the first through hole 10a and the second through hole 10b. One end of the neck hanger 30 passes through the first through hole 10a and is connected to the mounting base 10, while the other end can pass through the second through hole 10b, so that the snap-fit ​​part 31 and the fastening part 421 cooperate to lock the neck hanger 30, and the pushing component 41 moves along the guide hole 10c under force.

[0047] Specifically, the first through hole 10a allows one end of the neck hanger 30 to pass into the mounting base 10 and connect to it. The second through hole 10b provides a reference for locking and unlocking the other end of the neck hanger 30, allowing the user to directly insert the other end of the neck hanger 30 into the second through hole 10b. The guide hole 10c located between the first through hole 10a and the second through hole 10b provides a path for the pushing component 41 to move under force, ensuring that when the pushing component 41 drives the first gear 4121 to move, it can stably mesh with the second gear 422 of the limiting component 42. This provides precise guidance for the transmission of the unlocking action, further reducing the feeling of jamming during the unlocking process, making the operation smoother, and further improving the user experience.

[0048] In addition, the guide hole 10c is located between the first through hole 10a and the second through hole 10b. The pushing component 41, which moves along the guide hole 10c, is adjacent to the first through hole 10a and the second through hole 10b. This allows full use of the space between the mounting positions at both ends of the neck hanger 30 inside the mounting base 10, resulting in a more compact overall structure and facilitating the miniaturization of the entire neck hanger bracket.

[0049] The end face 30a of the mounting base 10 with the guide hole 10c can be a plane or an arc-shaped convex surface. When the end face 30a of the mounting base 10 is a plane, the pushing component 41 is forced to move along the guide hole 10c on the plane; when the end face 30a of the mounting base 10 is an arc-shaped convex surface, the pushing component 41 is forced to move along the guide hole 10c on the arc-shaped convex surface.

[0050] refer to Figures 2 to 5 In an optional embodiment of this application, the pushing assembly 41 includes a push button 411 and a transmission seat 412. A first gear tooth 4121 is provided on the transmission seat 412 on the side facing away from the push button 411. The push button 411 includes a guide rod 4111 and a pushing part 4112 exposed outside the mounting base 10. One end of the guide rod 4111 is connected to the pushing part 4112, and the other end passes through a guide hole 10c and is connected to the transmission seat 412. The pushing part 4112 is driven by force to move the guide rod 4111 through the guide hole 10c.

[0051] Specifically, the pressing part 4112 is exposed outside the mounting base 10, allowing the user to directly apply force. One end of the guide rod 4111 is connected to the pressing part 4112, and the other end passes through the guide hole 10c and connects to the transmission base 412. It can stably transmit the force applied by the user to the transmission base 412, and then transmit it to the second gear 422 of the limiting member 42 through the first gear 4121 on the transmission base 412, driving the limiting member 42 to rotate, so that the fastening part 421 engages with or disengages from the locking part 31, avoiding power dispersion and ensuring that the unlocking force is effectively transmitted to the limiting member 42 through the transmission base 412. The guide hole 10c can provide guidance for the movement of the guide rod 4111 and the pressing part 4112.

[0052] Further reference Figure 2 and Figure 4 A hook portion 41111 is provided at one end of the guide rod 4111 away from the pushing part 4112. A slot 412a is provided on the transmission seat 412. The guide rod 4111 is inserted into the slot 412a, and the hook portion 41111 abuts against the side of the transmission seat 412 away from the pushing part 4112 to prevent the push button 411 from disengaging from the mounting seat 10.

[0053] Specifically, when the push button 411 is subjected to an outward force, the hook portion 41111 will be blocked by the transmission seat 412, preventing the guide rod 4111 from dislodging from the guide hole 10c and the slot 412a, and preventing the push button 411 from detaching from the mounting seat 10. This ensures that the push button 411 remains connected to the mounting seat 10 and the transmission seat 412, preventing the locking mechanism 40 from disintegrating and extending the overall service life of the neck bracket. In terms of assembly, during the assembly of the push assembly 41, the guide rod 4111 can be inserted from the slot 412a into the slot 412a of the transmission seat 412, with the hook portion 41111 abutting against the transmission seat 412, thus fixing the push button 411 to the transmission seat 412. Assembly is simple, operation is convenient, and production efficiency is improved.

[0054] refer to Figure 2 , Figure 3 and Figure 6 In an optional embodiment of this application, the snap-fit ​​part 31 is a snap-fit ​​groove 31a, and the fastening part 421 is a snap-fit ​​block 4211 that can snap into the snap-fit ​​groove 31a.

[0055] Specifically, the locking block 4211 can directly engage with the slot 31a, forming a physical lock to prevent the neck piece 30 from moving axially or radially, thus preventing accidental loosening during use and ensuring a stable locking state. When the locking mechanism 40 unlocks, the limiting member 42 drives the locking block 4211 to disengage from the slot 31a. The locking block 4211 can quickly disengage along the opening direction of the slot 31a, adapting to the gear transmission trajectory driven by the pushing component 41, ensuring smooth unlocking. The slot 31a and the locking block 4211 have simple shapes and can be directly integrally formed on the neck piece 30 and the limiting member 42 (such as injection molding), eliminating the need for additional complex structures, reducing production difficulty, minimizing assembly errors, and ensuring fitting accuracy.

[0056] refer to Figure 2 , Figure 3 and Figure 6 In an optional embodiment of this application, the other end of the neck hanger 30 includes an end face 30a and a peripheral surface 30b surrounding the end face 30a. A slot 31a is disposed on the peripheral surface 30b. A second chamfer 42a is provided at the connection position between the end face 30a and the peripheral surface 30b. And / or, a second chamfer 42a is provided at one end of the snap-fit ​​block 4211 near the second through hole 10b.

[0057] A first chamfer 30c is provided between the end face 30a and the peripheral surface 30b of the other end of the neck member 30. During the insertion of the other end of the neck member 30 into the second through hole 10b, the first chamfer 30c first abuts against the locking block 4211, driving the locking block 4211 away from the neck member 30 until it contacts the peripheral surface 30b and is smoothly inserted into the slot 31a. A second chamfer 42a is provided on the locking block 4211. This design allows the second chamfer 42a to first abut against the other end of the neck member 30, driving the limiting member 42 away from the neck member 30 until the locking block 4211 is smoothly inserted into the slot 31a. Of course, a first chamfer 30c can also be provided at the connection position between the end face 30a and the peripheral face 30b of the neck hanger 30, and a second chamfer 42a can be provided at the end of the snap-fit ​​block 4211 near the second through hole 10b. This can make the locking process of the neck hanger 30 smoother, which also simplifies the operation process. Users do not need to work hard to find the correct alignment angle, saving time and effort, and can complete the locking operation more quickly, thus improving efficiency.

[0058] In optional embodiments of this application, the fixing mechanism 20 can be implemented using conventional structures for connecting and fixing shooting equipment, such as magnetic fixing components and clamping components. The specific structure of the fixing mechanism 20 is not limited here.

[0059] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A neck brace, characterized in that, include: Mounting base; A fixing mechanism is connected to the mounting base, and the fixing mechanism is used to connect the shooting equipment; The neck hanger has one end connected to the mounting base and the other end provided with a snap-fit ​​part; The locking mechanism includes a pushing component and a limiting component disposed on the mounting base. The pushing component is partially exposed outside the mounting base. The pushing component is provided with a first gear tooth. The limiting component is provided with a fastening part and a second gear tooth that meshes with the first gear tooth. The fastening part can cooperate with the snap-fit ​​part to lock the neck hanger. The pushing component is driven by force to move the first gear tooth, and then the meshing action of the first gear tooth and the second gear tooth drives the limiting member to move within the mounting base, so that the fastening part disengages from the locking part and unlocks.

2. The neck brace according to claim 1, characterized in that, The limiting member includes a transmission part and a swing arm part connected to the transmission part. The second gear tooth is disposed on the transmission part on the side facing the first gear tooth. The fastening part is disposed on the transmission part. The swing arm part is rotatably mounted on the mounting base so as to drive the fastening part to engage with or move away from the locking part.

3. The neck brace according to claim 2, characterized in that, The mounting base is provided with a guide arm, the guide arm includes a first guide surface arranged along the rotation direction of the swing arm, and the transmission part includes a second guide surface adapted to the first guide surface. When the swing arm rotates in the mounting base, the second guide surface slides along the first guide surface.

4. The neck brace according to claim 2, characterized in that, The mounting base is also provided with a positioning post and a first limiting arm. The locking mechanism also includes a torsion spring. The swing arm is provided with a positioning hole. The positioning post passes through the mounting hole of the torsion spring and the positioning hole. One torsion arm end of the torsion spring abuts against the swing arm, and the other torsion arm end abuts against the first limiting arm, so as to store energy by compressive deformation when the fastening part is disengaged from the locking part, and reset the fastening part when the energy is released.

5. The neck brace according to claim 4, characterized in that, The mounting base is also provided with a second limiting arm. When the torsion spring releases energy and drives the swing arm to rotate to the maximum angle, the second limiting arm abuts against the swing arm.

6. The neck brace according to claim 1, characterized in that, The mounting base is provided with a first through hole, a second through hole, and a guide hole located between the first through hole and the second through hole. The guide hole extends along the line connecting the first through hole and the second through hole. One end of the neck hanger passes through the first through hole and is connected to the mounting base, while the other end can pass through the second through hole, so that the snap-fit ​​part and the fastening part cooperate to lock the neck hanger. The pushing component moves along the guide hole under force.

7. The neck brace according to claim 6, characterized in that, The pushing assembly includes a push button and a transmission seat. The first gear tooth is located on the side of the transmission seat facing away from the push button. The push button includes a guide rod and a pushing part exposed outside the mounting seat. One end of the guide rod is connected to the pushing part, and the other end passes through the guide hole and is connected to the transmission seat. The pushing part is driven by force to move the guide rod and the guide hole.

8. The neck brace according to claim 7, characterized in that, A hook portion is provided at one end of the guide rod away from the pushing part, and a slot is provided on the transmission seat. The guide rod is inserted into the slot, and the hook portion abuts against the side of the transmission seat opposite to the pushing part to prevent the push button from disengaging from the mounting seat.

9. The neck brace according to claim 6, characterized in that, The latching part is a latching slot, and the fastening part is a latching block that can be latched into the latching slot.

10. The neck brace according to claim 9, characterized in that, The other end of the neck hanger includes an end face and a peripheral surface surrounding the end face. The slot is disposed on the peripheral surface, and a first chamfer is provided at the connection position between the end face and the peripheral surface; and / or, a second chamfer is provided at the connection position between the end wall of the snap-fit ​​block near the second through hole and the groove wall of the slot.

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