cervical collar

Abstract

The utility model relates to a kind of cervical collar. The cervical collar includes chin tray, fixed frame, ratchet and adjusting block, the ratchet is fixedly connected with the chin tray, the ratchet is rotatably connected with the fixed frame, the adjusting block is installed on the fixed frame, it can be switched between locking position and unlocking position along the circumferential direction of the ratchet relative to the fixed frame, the adjusting block includes the elastic rotation-stopping portion and the lever portion exposed to the outside of the fixed frame;When the adjusting block is located in the locking position, the rotation-stopping portion is inserted in the tooth groove of the ratchet;When the adjusting block is located in the unlocking position, the rotation-stopping portion is located outside the tooth groove of the ratchet. The mechanism for realizing the angle adjustment of chin tray of the cervical collar provided by the utility model is simple in structure, and convenient to operate.

Description

Technical Field

[0001] This utility model relates to a neck brace. Background Technology

[0002] A neck brace is a device used to correct head and neck posture. It has a chin tray on which the user's chin can rest. Ideally, the chin tray should be able to rotate and adjust its angle to accommodate different face shapes and neck lengths. Existing neck braces often have complex mechanisms for adjusting the chin tray angle, which are not very convenient to operate. Utility Model Content

[0003] The technical problem to be solved by this utility model is: how to make the mechanism for adjusting the chin tray angle of the neck brace simpler and easier to operate.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A neck brace includes a chin tray, a mounting frame, a ratchet, and an adjusting block. The ratchet is fixedly connected to the chin tray and rotatably connected to the mounting frame. The adjusting block is mounted on the mounting frame and can move between a locked position and an unlocked position relative to the mounting frame along the circumference of the ratchet. The adjusting block includes a resilient anti-rotation part and a lever part protruding from the mounting frame. When the adjusting block is in the locked position, the anti-rotation part is inserted into the tooth groove of the ratchet; when the adjusting block is in the unlocked position, the anti-rotation part is located outside the tooth groove of the ratchet.

[0005] In some embodiments, the adjusting block further includes a first positioning part, the fixing frame has a limiting part, the limiting part is provided with a second positioning part and a third positioning part, the second positioning part and the third positioning part are both matched with the first positioning part; when the adjusting block is in the locked position, the first positioning part is engaged in the second positioning part; when the adjusting block is in the unlocked position, the first positioning part is engaged in the third positioning part.

[0006] In some embodiments, the fixing frame is a hollow structure, the ratchet, the first positioning part and the anti-rotation part are located inside the fixing frame, the fixing frame has a clearance opening that connects the outside and the inside of the fixing frame, the lever part passes through the clearance opening, the limiting part and the fixing frame abut against the adjusting block respectively, and together prevent the adjusting block from moving radially along the ratchet.

[0007] In some embodiments, the mounting bracket includes an upper cover and a lower cover, the upper cover and the lower cover being detachably connected.

[0008] In some embodiments, the neck brace further includes a connecting seat, the chin tray is detachably fixedly connected to the connecting seat, and the connecting seat passes through the upper cover and is detachably fixedly connected to the ratchet.

[0009] In some embodiments, the ratchet has a shaft hole and at least two eccentric holes, the connecting seat has a connector corresponding to the eccentric holes, the connector being inserted into the eccentric holes; the lower cover has a shaft portion, the shaft portion being inserted into the shaft hole; the connecting seat and the lower cover abut against the ratchet respectively, jointly preventing the ratchet from moving along the axial direction of the ratchet.

[0010] In some embodiments, the top cover and the ratchet abut against the connecting seat to prevent the connecting seat from moving axially along the ratchet.

[0011] In some embodiments, the chin tray is inserted into the connector.

[0012] In some embodiments, there are two fixing brackets, which are mirror-symmetrical. The upper covers of the two fixing brackets are opposite to each other. The upper cover is fixed to the lower cover by screws, and the lower cover has a threaded portion corresponding to the screw. The screw passes through the upper cover in sequence and is inserted into the threaded portion. The threaded portion is located inside the fixing bracket.

[0013] In some embodiments, the clearance port limits the range of circumferential movement of the adjusting block along the ratchet.

[0014] The beneficial effects of this utility model are as follows: The chin rest provided by this utility model has a simple structure and is easy to operate for adjusting the angle of the chin tray. The user can directly move the adjusting block to disengage it from the ratchet's tooth groove, thereby unlocking the ratchet and allowing the chin tray to rotate. After adjusting the angle of the chin tray, the user can reverse the movement of the adjusting block to insert it into the ratchet's tooth groove, thereby locking the ratchet. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a neck brace structure according to an embodiment of the present invention; Figure 2 for Figure 1 Enlarged view of region A; Figure 3 This is a cross-sectional view of the chin tray, fixing frame, and rotating frame in this embodiment; Figure 4 This is a schematic diagram of the structure of the lower cover, ratchet, and adjustment block in the locked position in this embodiment; Figure 5 for Figure 4 Enlarged view of region B; Figure 6 This is a schematic diagram of the structure of the lower cover, ratchet, and adjustment block located in the unlocked position in this embodiment; Figure 7 for Figure 6 Enlarged view of region C.

[0016] Label Explanation: 1. Chin tray; 2. Neck support strap; 3. Chest support bar; 4. Adjustment block; 5. Fixing frame; 6. Rotating frame; 5a. Top cover; 5b. Bottom cover; 41. Lever; 42. Anti-rotation part; 43. First positioning part; 51. Clearance opening; 52. Limiting part; 53. Shaft; 54. Threaded connection; 61. Ratchet; 62. Connecting seat; 521. Second positioning part; 522. Third positioning part; 621. Connector. Detailed Implementation

[0017] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0018] A common neck brace structure includes a pair of fixed frames, a chest support bar, a chin tray, and a neck strap. Both ends of the chest support bar, the chin tray, and the neck strap are connected to the two fixed frames. Existing neck brace mechanisms for adjusting the chin tray angle are often complex and inconvenient to operate.

[0019] This utility model provides a neck brace; please refer to [reference needed]. Figure 1 and Figure 3 The neck brace includes a chin tray 1, a fixing frame 5, a ratchet 61, and an adjusting block 4. The ratchet 61 is fixedly connected to the chin tray 1 and rotatably connected to the fixing frame 5. The adjusting block 4 is mounted on the fixing frame 5 and can move between a locked position and an unlocked position relative to the fixing frame 5 along the circumference of the ratchet 61. The adjusting block 4 includes a resilient anti-rotation part 42 and a lever part 41 protruding from the fixing frame 5. Please refer to... Figure 4 When the adjusting block 4 is in the locked position, the anti-rotation part 42 is inserted into the tooth groove of the ratchet 61; please refer to Figure 6 When the adjusting block 4 is in the unlocked position, the anti-rotation part 42 is located outside the tooth groove of the ratchet 61.

[0020] As can be seen from the above description, the beneficial effects of this utility model are as follows: The neck brace provided by this utility model has a simple structure and is easy to operate for adjusting the angle of the chin tray 1. The user can directly move the adjusting block 4 to disengage it from the tooth groove of the ratchet 61, thereby unlocking the ratchet 61 and allowing the chin tray 1 to rotate. After adjusting the angle of the chin tray 1, the user can reverse the movement of the adjusting block 4 to insert it into the tooth groove of the ratchet 61, thereby locking the ratchet 61.

[0021] In some embodiments, please refer to Figure 5 and Figure 7 The adjusting block 4 also includes a first positioning part 43, and the fixing frame 5 has a limiting part 52. The limiting part 52 is provided with a second positioning part 521 and a third positioning part 522, and the second positioning part 521 and the third positioning part 522 are matched with the first positioning part 43. When the adjusting block 4 is in the locked position, the first positioning part 43 is inserted into the second positioning part 521. When the adjusting block 4 is in the unlocked position, the first positioning part 43 is inserted into the third positioning part 522.

[0022] As can be seen from the above description, by having the first positioning part 43 cooperate with the second positioning part 521 and the third positioning part 522 respectively, the stability of the adjusting block 4 when it is in the unlocked position and the locked position is enhanced.

[0023] In some embodiments, please refer to Figure 2 and Figure 3 The fixing frame 5 is a hollow structure. The ratchet 61, the first positioning part 43 and the anti-rotation part 42 are located inside the fixing frame 5. The fixing frame 5 has a clearance opening 51 that connects the outside and the inside of the fixing frame 5. The lever part 41 passes through the clearance opening 51. The limiting part 52 and the fixing frame 5 abut against the adjusting block 4 respectively, and together prevent the adjusting block 4 from moving radially along the ratchet 61.

[0024] As can be seen from the above description, by placing the ratchet 61, the first positioning part 43, and the anti-rotation part 42 inside the fixing frame 5, the neck brace has a simple appearance. By limiting the adjusting block 4 with the limiting part 52 and the fixing frame 5, the radial movement of the adjusting block 4 along the ratchet 61 is prevented.

[0025] In some embodiments, please refer to Figure 3 The mounting bracket 5 includes an upper cover 5a and a lower cover 5b, which are detachably connected.

[0026] As can be seen from the above description, the design of the fixing bracket 5, which is formed by detachably assembling the upper cover 5a and the lower cover 5b, solves the installation problem of the ratchet 61 and the adjusting block 4.

[0027] In some embodiments, please refer to Figure 3The neck brace also includes a connecting seat 62. The chin tray 1 is detachably fixed to the connecting seat 62. The connecting seat 62 passes through the upper cover 5a and is detachably fixed to the ratchet 61.

[0028] As described above, the chin tray 1 is detachably and fixedly connected to the connecting seat 62, facilitating the replacement and cleaning of the chin tray 1. The ratchet 61 is detachably and fixedly connected to the connecting seat 62, making the ratchet 61 replaceable.

[0029] In some embodiments, please refer to Figure 3 and Figure 4 The ratchet 61 has a shaft hole and at least two eccentric holes. The connecting seat 62 has a plug 621 corresponding to the eccentric holes, and the plug 621 is inserted into the eccentric holes. The lower cover 5b has a shaft portion 53, which is inserted into the shaft hole. The connecting seat 62 and the lower cover 5b abut against the ratchet 61 respectively, and together prevent the ratchet 61 from moving along the axial direction of the ratchet 61.

[0030] As described above, the ratchet 61 is inserted into the connecting seat 62 for easy assembly and disassembly. The shaft portion 53, in conjunction with the shaft hole, ensures the stability of the ratchet 61's rotation relative to the fixed frame 5. The connecting seat 62 and the lower cover 5b limit the ratchet 61, preventing it from moving axially.

[0031] In some embodiments, please refer to Figure 3 The upper cover 5a and the ratchet 61 abut against the connecting seat 62 respectively, together preventing the connecting seat 62 from moving axially along the ratchet 61.

[0032] As can be seen from the above description, the upper cover 5a and the ratchet 61 limit the connection seat 62, thus preventing the connection seat 62 from moving axially along the ratchet 61.

[0033] In some embodiments, please refer to Figure 3 The chin tray 1 is inserted into the connector 62.

[0034] As can be seen from the above description, the chin tray 1 is fixed to the connector 62 by a plug-in method, which facilitates the quick assembly and disassembly of the chin tray 1.

[0035] In some embodiments, please refer to Figure 1 and Figure 4 There are two fixing brackets 5, which are mirror symmetrical. The upper covers 5a of the two fixing brackets 5 are opposite each other. The upper cover 5a is fixed to the lower cover 5b by screws. The lower cover 5b has a screw connection part 54 corresponding to the screw. The screw passes through the upper cover 5a in sequence and is inserted into the screw connection part 54. The screw connection part 54 is located inside the fixing bracket 5.

[0036] As can be seen from the above description, when the user uses this neck brace, the screws are located on the inside of the neck brace and are not exposed on the outside of the neck brace, which is more aesthetically pleasing.

[0037] In some embodiments, please refer to Figure 4 and Figure 6 The adjustment block 4 is limited to the range of circumferential movement along the ratchet 61 by the 51-way limit.

[0038] As can be seen from the above description, the clearance port 51 limits the movement range of the adjusting block 4, which can prevent the adjusting block 4 from being moved too far or in the wrong direction.

[0039] Please refer to Figures 1 to 7 One embodiment of this utility model is as follows: A type of neck brace, please refer to Figure 1 It includes a fixed frame 5 and a rotating frame 6. The chest support bar 3 and the neck fixation strap 2 are installed on the fixed frame 5, and the chin tray 1 is installed on the rotating frame 6.

[0040] Please refer to Figure 3 The rotating frame 6 includes a connecting seat 62 and a ratchet 61, with the ratchet 61 located within the fixed frame 5. The ratchet 61 has one shaft hole and two eccentric holes. The connecting seat 62 has a connector 621 corresponding to the eccentric holes, which is inserted into the eccentric holes. The end of the chin tray 1 is inserted into the connecting seat 62. The fixed frame 5 includes an upper cover 5a and a lower cover 5b. The lower cover 5b has a shaft portion 53 inserted into the shaft hole. The upper cover 5a provides a limiting function for the connecting seat 62, preventing the rotating frame 6 from separating from the fixed frame 5 along the axial direction of the ratchet 61.

[0041] Please refer to Figures 4 to 7 The fixed frame 5 has a clearance opening 51, and the adjusting block 4 has a lever portion 41, a first positioning portion 43, and an anti-rotation portion 42. The lever portion 41 is inserted into the clearance opening 51. The fixed frame 5 has a limiting portion 52, which prevents the adjusting block 4 from moving radially relative to the fixed frame 5 along the ratchet 61. The limiting portion 52 has a second positioning portion 521 and a third positioning portion 522, both of which match the first positioning portion 43, preventing the adjusting block 4 from moving circumferentially relative to the fixed frame 5 along the ratchet 61. The anti-rotation portion 42 is elastic, preventing the ratchet 61 from rotating relative to the adjusting block 4, thereby preventing the rotating frame 6 from rotating relative to the fixed frame 5.

[0042] The lever 41 allows the adjusting block 4 to move between the locked and unlocked positions relative to the limiting part 52 along the circumference of the ratchet 61. When the adjusting block 4 is in the locked position, the first positioning part 43 engages with the second positioning part 521, and the anti-rotation part 42 is inserted into the tooth groove of the ratchet 61, preventing the rotating frame 6 from rotating relative to the fixed frame 5. When the adjusting block 4 is in the unlocked position, the first positioning part 43 engages with the third positioning part 522, and the anti-rotation part 42 is located outside the tooth groove of the ratchet 61, allowing the rotating frame 6 to rotate relative to the fixed frame 5, enabling the user to adjust the angle of the chin tray 1.

[0043] In summary, the neck brace provided by this utility model has a simple structure and is easy to operate for adjusting the angle of the chin tray 1. When the user needs to adjust the angle of the chin tray 1, simply move the adjusting block 4 to the unlocked position to release the lock of the adjusting block 4 on the ratchet 61. At this time, the rotating frame 6 can rotate relative to the fixed frame 5 to adjust the chin tray 1 to the appropriate position. Then, move the adjusting block 4 back to the locked position, and the anti-rotation part 42 of the adjusting block 4 re-inserts into the tooth groove of the ratchet 61, preventing the rotating frame 6 from rotating relative to the fixed frame 5.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A neck brace, characterized in that: The device includes a chin tray, a mounting bracket, a ratchet, and an adjusting block. The ratchet is fixedly connected to the chin tray and rotatably connected to the mounting bracket. The adjusting block is mounted on the mounting bracket and can move and switch between a locked position and an unlocked position relative to the mounting bracket along the circumference of the ratchet. The adjusting block includes a resilient anti-rotation part and a lever part protruding from the mounting bracket. When the adjusting block is in the locked position, the anti-rotation part is inserted into the tooth groove of the ratchet; when the adjusting block is in the unlocked position, the anti-rotation part is located outside the tooth groove of the ratchet.

2. The neck brace as described in claim 1, characterized in that: The adjusting block further includes a first positioning part, the fixing frame has a limiting part, the limiting part is provided with a second positioning part and a third positioning part, and the second positioning part and the third positioning part are both matched with the first positioning part; When the adjusting block is in the locked position, the first positioning part is engaged in the second positioning part; when the adjusting block is in the unlocked position, the first positioning part is engaged in the third positioning part.

3. The neck brace as described in claim 2, characterized in that: The fixing frame is a hollow structure. The ratchet, the first positioning part and the anti-rotation part are located inside the fixing frame. The fixing frame has a clearance opening that connects the outside and the inside of the fixing frame. The lever part passes through the clearance opening. The limiting part and the fixing frame abut against the adjusting block respectively, and together prevent the adjusting block from moving radially along the ratchet.

4. The neck brace as described in claim 3, characterized in that: The mounting bracket includes an upper cover and a lower cover, which are detachably connected.

5. The neck brace as described in claim 4, characterized in that: It also includes a connecting seat, the chin tray and the connecting seat are detachably fixedly connected, the connecting seat passes through the upper cover and is detachably fixedly connected to the ratchet.

6. The neck brace as described in claim 5, characterized in that: The ratchet has a shaft hole and at least two eccentric holes. The connecting seat has a connector corresponding to the eccentric holes, which is inserted into the eccentric holes. The lower cover has a shaft portion, which is inserted into the shaft hole. The connecting seat and the lower cover abut against the ratchet respectively, jointly preventing the ratchet from moving along the axial direction of the ratchet.

7. The neck brace as described in claim 6, characterized in that: The upper cover and the ratchet abut against the connecting seat, together preventing the connecting seat from moving along the axial direction of the ratchet.

8. The neck brace as described in claim 5, characterized in that: The chin tray is inserted into the connector.

9. The neck brace as described in claim 4, characterized in that: The number of fixing brackets is two, the two fixing brackets are mirror symmetrical, the upper covers of the two fixing brackets are opposite each other, the upper cover is fixed to the lower cover by screws, and the lower cover has a threaded part corresponding to the screw; the screw passes through the upper cover in sequence and is inserted into the threaded part; the threaded part is located inside the fixing bracket.

10. The neck brace as described in claim 3, characterized in that: The clearance opening limits the range of movement of the adjusting block along the circumference of the ratchet.

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