Head and neck thoracic immobilization brace

Abstract

The application provides a head-neck-chest fixing support, and relates to the technical field of medical devices, which comprises a back chest guard plate, four connecting belts connected to the periphery of the back chest guard plate, a front chest guard plate connected between the other end portions of the four connecting belts, a U-shaped support frame connected to the back side of the back chest guard plate, a neck sleeve installed on the top of the U-shaped support frame, a T-shaped rod connected to the bottom of the U-shaped support frame, two nuts A connected to the bottom of the U-shaped support frame on both sides, a vertical pipe seat fixedly installed on the back side of the back chest guard plate, the T-shaped rod slidingly inserted into the vertical pipe seat, a long pipe sleeve sleeved on the bottom outer side of the vertical pipe seat, the long pipe sleeve connected to the T-shaped rod, a short pipe sleeve sleeved on the outer side of the vertical pipe seat, and a spring sleeved on the outer side of the vertical pipe seat. The U-shaped support frame is driven by the T-shaped rod to move up and down, the U-shaped support frame can be flexibly adjusted in height according to the individual differences of the body types of patients, the height position of the neck sleeve is adjusted, and the needs of patients with different body types in the head-neck-chest fixing rehabilitation are met.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a head, neck and chest fixation brace. Background Technology

[0002] Head and neck braces are new medical and healthcare products specifically developed for patients with cervical spondylosis. They are generally lightweight and easy to carry. Their operation is relatively simple, requiring no complicated steps or professional skills. Patients or their families can use them after simple guidance. They are extremely safe and will not cause any pain to patients under normal use. They can effectively prevent secondary injuries to patients caused by improper operation or product defects, and provide reliable and stable fixation support for the neck of patients with cervical spondylosis.

[0003] For example, Chinese patent "CN111658264B A self-service cervical spine health care and treatment traction device" includes a front thoracic and shoulder support, a rear vertebral and shoulder support, a mandibular support, and an occipital support. The front thoracic and shoulder support and the rear vertebral and shoulder support are connected by a first connecting strap, and the mandibular support and the craniooccipital support are connected by a second connecting strap. The mandibular support and the front thoracic and shoulder support are connected by several first support supports, which fit the front of the neck. The craniooccipital support and the rear vertebral and shoulder support are connected by several second support supports, which fit the back of the neck. Both the first and second support supports are flat, retractable connecting tubes, and springs are installed inside the flat, retractable connecting tubes. An elastic adjustment mechanism is provided between the springs and the flat, retractable connecting tubes.

[0004] However, current head, neck, and chest fixation braces are generally rigid in structure and mostly adopt a one-piece design, lacking flexibility and adaptability. This makes it difficult to precisely adjust the brace height according to actual needs, and cannot fully meet the differentiated use needs of people of different weights and ages. In clinical applications, this greatly limits their applicability and effectiveness. Summary of the Invention

[0005] This invention relates to a head, neck, and chest fixation brace, which solves the problem that existing head, neck, and chest fixation braces generally have rigid structures, mostly adopt an integrated design, lack flexibility and adaptability, making it difficult to accurately adjust the brace height according to actual needs, and failing to fully meet the differentiated usage needs of people of different weights and age groups.

[0006] This invention provides a head, neck, and chest fixation brace, specifically comprising a rear chest protector, connecting straps, a front chest protector, a U-shaped support frame, a neck sleeve, a T-shaped rod, a nut A, a vertical tube seat, a long tube sleeve, a short tube sleeve, a spring, a pivot, a screw, and a nut B; the rear chest protector is connected to four connecting straps, and the other ends of the four connecting straps are connected to the front chest protector; the rear side of the rear chest protector is connected to the U-shaped support frame, and the neck sleeve is installed on the top of the U-shaped support frame; the bottom of the U-shaped support frame is connected to a T-shaped rod, and the bottom of both sides of the U-shaped support frame are connected to... There are two nuts A; a vertical tube seat is fixedly installed on the rear side of the rear chest plate, and the bottom of the T-shaped rod is slidably inserted into the vertical tube seat; a long tube sleeve is fitted on the outer side of the bottom of the vertical tube seat, and the long tube sleeve is connected to the T-shaped rod; a short tube sleeve is fitted on the outer side of the vertical tube seat, and the short tube sleeve is located at the top of the long tube sleeve; a spring is fitted on the outer side of the vertical tube seat, and the spring is located at the top of the short tube sleeve, with the short tube sleeve located between the long tube sleeve and the spring; a rotating shaft and a screw are connected to the middle of both sides of the U-shaped support frame, the rotating shaft is connected to the screw, and two nuts B are connected to the outside of the screw.

[0007] Furthermore, two guide holes are symmetrically arranged on the top rear side of the posterior chest protector, through which the two ends of the U-shaped support frame slide. These guide holes guide the vertical movement of the U-shaped support frame, allowing for flexible adjustment of its height according to individual patient body shapes, thereby adjusting the height of the neck brace.

[0008] Furthermore, the interior of the vertical tube base is hollow, the bottom of the T-shaped rod is slidably connected to the interior of the vertical tube base, two sliding holes are symmetrically arranged on the outer side of the vertical tube base, and two support blocks are symmetrically arranged at the bottom of the T-shaped rod, with the two support blocks slidably connected to the two sliding holes respectively.

[0009] Furthermore, the long tube sleeve is rotatably connected to the vertical tube base. Two comb-shaped holes are provided on the outer side of the long tube sleeve, and these holes communicate with the sliding holes. The end of the support block is located within the comb-shaped holes. The U-shaped support frame moves up and down, driven by a T-shaped rod. During this movement, the vertical channel of the comb-shaped holes connects with the sliding holes, allowing the support block to move smoothly up and down within the vertical channel of the comb-shaped holes. When the neck protector is adjusted to the desired height, the long tube sleeve is rotated, connecting the horizontal channel of the comb-shaped holes with the sliding holes. The support block moves to the innermost end of the horizontal channel of the comb-shaped holes, thus achieving the limiting and fixing of the support block.

[0010] Furthermore, the short tube sleeve is slidably connected to the vertical tube seat. Two fixed blocks are symmetrically arranged on the outer side of the vertical tube seat, and two movable holes are symmetrically arranged on the outer side of the short tube sleeve. The two fixed blocks are slidably connected to the two movable holes respectively. The sliding engagement between the fixed blocks and the movable holes provides precise guidance for the movement of the short tube sleeve.

[0011] Furthermore, the long sleeve has two symmetrically arranged limiting grooves at the top and two symmetrically arranged limiting blocks at the bottom of the short sleeve, with the two limiting blocks respectively inserted into the two limiting grooves.

[0012] Furthermore, the top of the spring contacts the vertical tube seat, and the bottom of the spring contacts the top of the short tube sleeve. When the support block moves to the innermost end of the transverse channel of the comb-shaped hole, the limiting block is exactly above the limiting groove. At this time, the short tube sleeve moves downward under the thrust applied by the spring, so that the limiting block is accurately inserted into the limiting groove, thereby locking and fixing the long tube sleeve and effectively preventing the long tube sleeve from rotating.

[0013] Furthermore, both ends of the top of the T-shaped rod are provided with through holes, and the bottom sides of the U-shaped support frame pass through the two through holes respectively.

[0014] Furthermore, both sides of the bottom of the U-shaped support frame are provided with external threads, and nuts A are threadedly connected to the U-shaped support frame. The two nuts A respectively contact the upper and lower sides of the T-shaped rod end. The U-shaped support frame slides within the through hole, which can significantly expand the range of motion adjustment of the neck brace, so as to fully meet the needs of patients of different body types in head, neck and chest fixation rehabilitation. After the U-shaped support frame has completed the sliding adjustment operation, the upper and lower nuts A are tightened to achieve a stable fixation of the U-shaped support frame.

[0015] Furthermore, the U-shaped support frame includes a U-shaped component and two vertical rods. The U-shaped component is connected to the neck brace, and the vertical rods are connected to the rear chest protector and the T-shaped rod. The two sides of the U-shaped component are rotatably connected to the tops of the two vertical rods, and one end of the rotating shaft is rotatably connected to the vertical rod. The other end of the rotating shaft has a through hole inside. The top of the screw is hinged to the U-shaped component, and the bottom of the screw slides through the through hole. Nut B is threadedly connected to the screw, and the two nuts B are in contact with the upper and lower sides of the other end of the rotating shaft, respectively.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In use, this invention guides the U-shaped support frame to move up and down through guide holes, allowing for flexible adjustment of the U-shaped support frame according to individual patient body differences, thereby adjusting the height of the neck brace and meeting the needs of patients of different body types for head, neck, and chest fixation rehabilitation. The T-shaped rod drives the U-shaped support frame to move up and down. During the movement of the T-shaped rod, the vertical channel of the comb-shaped hole connects with the sliding hole, allowing the support block to move smoothly up and down within the vertical channel of the comb-shaped hole. When the neck brace is adjusted to the required height, the long tube sleeve is rotated to connect the horizontal channel of the comb-shaped hole with the sliding hole, moving the support block to the innermost side of the horizontal channel of the comb-shaped hole, thus limiting and fixing the support block and ensuring the stability and reliability of the neck brace.

[0017] 2. In use, this invention provides precise guidance for the movement of the short sleeve through the sliding cooperation between the fixed block and the movable hole, effectively preventing the short sleeve from twisting during movement. When the support block moves to the innermost side of the transverse channel of the comb-shaped hole, the limiting block is exactly above the limiting groove. At this time, the short sleeve moves downward under the thrust of the spring, allowing the limiting block to accurately insert into the limiting groove, thereby locking and fixing the long sleeve and effectively preventing the long sleeve from rotating, further ensuring the stability of the neck protector. When there is a need to readjust the height of the neck protector, the short sleeve is moved upward, the spring contracts due to the force, and the limiting block disengages from the limiting groove, releasing the locking state of the long sleeve. The long sleeve is then rotated in the opposite direction, accurately connecting the vertical channel of the comb-shaped hole with the sliding hole. The support block can then move into the vertical channel of the comb-shaped hole, releasing the limiting state of the support block. The height of the neck protector can then be adjusted adaptively according to the actual situation. The entire operation process is convenient and efficient.

[0018] 3. When in use, the U-shaped support frame slides within the through hole, which can significantly expand the range of motion adjustment of the neck brace, so as to fully meet the needs of patients of different body types in head, neck and chest fixation rehabilitation. After the U-shaped support frame completes the sliding adjustment operation, the upper and lower nuts A are tightened in opposite directions. The nuts A are used to firmly fix the U-shaped support frame, effectively ensuring the stability of the U-shaped support frame in subsequent use.

[0019] 4. In use, the U-shaped component can be rotated and adjusted. According to the different needs of different patients, the U-shaped component drives the neck brace to rotate, and the pitch angle of the neck brace is adaptively adjusted to better meet the actual application needs. During the rotation adjustment of the U-shaped component, the screw slides in the perforation. After the neck brace is adjusted to the required angle, tighten nut B to fix the screw. The screw fixes the U-shaped component, ensuring the stability of the pitch angle of the neck brace.

[0020] Other advantages, objectives and features of the present invention will become apparent in part from the following description, and in part from those skilled in the art through study and practice of the invention. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0022] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0023] In the attached diagram: Figure 1 A schematic diagram of the overall front axle structure of the head, neck, and chest fixation brace of this application is shown; Figure 2A schematic diagram of the overall rear axial structure of the head, neck, and chest fixation brace of this application is shown; Figure 3 A schematic diagram of the connection structure between the rear chest guard, the strap, and the front chest guard of the head, neck, and chest fixation brace of this application is shown. Figure 4 A schematic diagram of the axial structure of the U-shaped support frame of the head, neck and chest fixation brace of this application is shown; Figure 5 A schematic diagram of the connection structure between the T-shaped rod and the vertical tube seat of the head, neck and chest fixation brace of this application is shown; Figure 6 A schematic diagram of the T-shaped rod axial structure of the head, neck, and chest fixation brace of this application is shown; Figure 7 A schematic diagram of the vertical tube seat axial structure of the head, neck and chest fixation brace of this application is shown; Figure 8 This paper shows a schematic diagram of the disassembled structure of the long sleeve and short sleeve of the head, neck and chest fixation brace of this application; Figure 9 A schematic diagram of the U-shaped support frame and screw structure of the head, neck and chest fixation brace of this application is shown.

[0024] Figure label: 1. Rear chest protector; 101. Guide hole; 2. Connecting strap; 3. Front chest protector; 4. U-shaped support frame; 41. U-shaped piece; 42. Vertical rod; 5. Neck protector; 6. T-shaped rod; 601. Through hole; 602. Support block; 7. Nut A; 8. Vertical tube seat; 801. Sliding hole; 802. Fixed block; 9. Long tube sleeve; 901. Comb-shaped hole; 902. Limiting groove; 10. Short tube sleeve; 1001. Movable hole; 1002. Limiting block; 11. Spring; 12. Rotating shaft; 1201. Through hole; 13. Screw; 14. Nut B. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Please refer to Figures 1 to 9 Example 1: This invention proposes a head, neck, and chest fixation brace, comprising a rear chest guard 1, connecting straps 2, a front chest guard 3, a U-shaped support frame 4, a neck sleeve 5, a T-shaped rod 6, a nut A7, a vertical tube seat 8, a long tube sleeve 9, a short tube sleeve 10, a spring 11, a rotating shaft 12, a screw 13, and a nut B14; four connecting straps 2 are connected to the periphery of the rear chest guard 1, and the front chest guard 3 is connected between the other ends of the four connecting straps 2; a U-shaped support frame 4 is connected to the rear side of the rear chest guard 1, and a neck sleeve 5 is installed on the top of the U-shaped support frame 4; T-shaped rods 6 are connected to the bottom of both sides of the U-shaped support frame 4, and two T-shaped rods 6 are connected to each end of the U-shaped support frame 4. Nut A7; A vertical tube seat 8 is fixedly installed on the rear side of the rear chest plate 1, and the bottom of the T-shaped rod 6 is slidably inserted into the vertical tube seat 8; A long tube sleeve 9 is fitted on the outer side of the bottom of the vertical tube seat 8, and the long tube sleeve 9 is connected to the T-shaped rod 6; A short tube sleeve 10 is fitted on the outer side of the vertical tube seat 8, and the short tube sleeve 10 is located at the top of the long tube sleeve 9; A spring 11 is fitted on the outer side of the vertical tube seat 8, and the spring 11 is located at the top of the short tube sleeve 10, and the short tube sleeve 10 is located between the long tube sleeve 9 and the spring 11; A rotating shaft 12 and a screw 13 are connected to the middle of both sides of the U-shaped support frame 4, the rotating shaft 12 is connected to the screw 13, and two nuts B14 are connected to the outside of the screw 13.

[0027] In this embodiment, two guide holes 101 are symmetrically arranged on the top rear side of the rear chest guard plate 1, and the two ends of the U-shaped support frame 4 slide through the two guide holes 101 respectively.

[0028] Using the above technical solution, the U-shaped support frame 4 is guided to move up and down through the guide hole 101. The U-shaped support frame 4 can be flexibly adjusted according to the individual differences in the patient's body shape, thereby adjusting the height of the neck brace 5, so as to meet the needs of patients of different body shapes in head, neck and chest fixation rehabilitation.

[0029] In this embodiment, the interior of the vertical tube base 8 is hollow. The bottom of the T-shaped rod 6 is slidably connected to the interior of the vertical tube base 8. Two sliding holes 801 are symmetrically arranged on the outer side of the vertical tube base 8. Two support blocks 602 are symmetrically arranged on the bottom of the T-shaped rod 6. The two support blocks 602 are slidably connected to the two sliding holes 801 respectively. The long tube sleeve 9 is rotatably connected to the vertical tube base 8. Two comb-shaped holes 901 are arranged on the outer side of the long tube sleeve 9. The comb holes 901 are connected to the sliding holes 801. The ends of the support blocks 602 are located in the comb holes 901.

[0030] Using the above technical solution, the T-shaped rod 6 drives the U-shaped support frame 4 to move up and down. During the up and down movement of the T-shaped rod 6, the vertical channel of the comb-shaped hole 901 will be connected with the sliding hole 801, and the support block 602 can move up and down smoothly within the vertical channel of the comb-shaped hole 901. When the neck protector 5 is adjusted to the required height, the long tube sleeve 9 is rotated to connect the horizontal channel of the comb-shaped hole 901 with the sliding hole 801. The support block 602 moves to the innermost side of the horizontal channel of the comb-shaped hole 901, thereby limiting and fixing the support block 602, and thus ensuring the stability and reliability of the neck protector 5.

[0031] In this embodiment, the short tube sleeve 10 is slidably connected to the vertical tube seat 8. Two fixed blocks 802 are symmetrically arranged on the outer side of the vertical tube seat 8, and two movable holes 1001 are symmetrically arranged on the outer side of the short tube sleeve 10. The two fixed blocks 802 are slidably connected to the two movable holes 1001 respectively.

[0032] By adopting the above technical solution, the sliding cooperation between the fixed block 802 and the movable hole 1001 can provide precise guidance for the movement of the short tube sleeve 10, effectively avoiding the adverse condition of twisting of the short tube sleeve 10 during the movement.

[0033] In this embodiment, the top of the long tube sleeve 9 is symmetrically provided with two limiting grooves 902, and the bottom of the short tube sleeve 10 is symmetrically provided with two limiting blocks 1002. The two limiting blocks 1002 are respectively inserted into the two limiting grooves 902; the top of the spring 11 contacts the vertical tube seat 8, and the bottom of the spring 11 contacts the top of the short tube sleeve 10.

[0034] Using the above technical solution, when the support block 602 moves to the innermost side of the transverse channel of the comb-shaped hole 901, the limiting block 1002 is exactly above the limiting groove 902; at this time, the short tube sleeve 10 moves downward under the pushing force applied by the spring 11, so that the limiting block 1002 is accurately inserted into the limiting groove 902, thereby locking and fixing the long tube sleeve 9, effectively preventing the long tube sleeve 9 from rotating, and providing further assurance for the stability of the neck sleeve 5. When there is a need to readjust the height of the neck brace 5, the short sleeve 10 is moved upward, the spring 11 contracts due to the force, and the limiting block 1002 disengages from the limiting groove 902. The locking state of the long sleeve 9 is released. The long sleeve 9 is rotated in the opposite direction so that the vertical channel of the comb hole 901 is accurately connected with the sliding hole 801. The support block 602 can move into the vertical channel of the comb hole 901, and the limiting state of the support block 602 is released. The height of the neck brace 5 can then be adjusted adaptively according to the actual situation. The whole operation process is convenient and efficient.

[0035] In Example 2, based on Example 1, both ends of the top of the T-shaped rod 6 are provided with through holes 601, and the bottom sides of the U-shaped support frame 4 are respectively inserted into the two through holes 601; both bottom sides of the U-shaped support frame 4 are provided with external threads, and nuts A7 are threadedly connected to the U-shaped support frame 4, with the two nuts A7 respectively contacting the upper and lower sides of the end of the T-shaped rod 6.

[0036] Using the above technical solution, the U-shaped support frame 4 slides within the through hole 601, which can significantly expand the range of motion adjustment of the neck brace 5, so as to fully meet the needs of patients of different body types in head, neck and chest fixation rehabilitation; after the U-shaped support frame 4 completes the sliding adjustment operation, the upper and lower nuts A7 are tightened in opposite directions, and the U-shaped support frame 4 is stably fixed by means of nuts A7, which effectively ensures the stability of the U-shaped support frame 4 in subsequent use.

[0037] In Example 3, based on Examples 1 and 2, the U-shaped support frame 4 includes a U-shaped component 41 and two vertical rods 42. The U-shaped component 41 is connected to the neck brace 5, and the vertical rods 42 are connected to the rear chest protector 1 and the T-shaped rod 6. The bottom of the vertical rods 42 slides through the guide hole 101 and the through hole 601 in sequence. The two sides of the U-shaped component 41 are rotatably connected to the top of the two vertical rods 42 respectively. One end of the rotating shaft 12 is rotatably connected to the vertical rod 42, and the other end of the rotating shaft 12 is provided with a through hole 1201. The top of the screw 13 is hinged and rotatably connected to the U-shaped component 41, and the bottom of the screw 13 slides through the through hole 1201. Nut B14 is threadedly connected to the screw 13, and the two nuts B14 are in contact with the upper and lower sides of the other end of the rotating shaft 12 respectively.

[0038] Using the above technical solution, the U-shaped component 41 can be rotated and adjusted. According to the different application needs of different patients, the neck brace 5 can be rotated by the U-shaped component 41 to adaptively adjust the pitch angle of the neck brace 5, so as to better meet the actual application needs. During the rotation adjustment of the U-shaped component 41, the screw 13 slides in the perforation 1201. After the neck brace 5 is adjusted to the required angle, the nut B14 is tightened to fix the screw 13. The screw 13 fixes the U-shaped component 41 to ensure the stability of the pitch angle of the neck brace 5.

[0039] The working principle of this embodiment is as follows: the T-shaped rod 6 drives the U-shaped support frame 4 to move up and down, and guides the U-shaped support frame 4 through the guide hole 101. The U-shaped support frame 4 can be flexibly adjusted according to the individual differences in the patient's body shape, thereby adjusting the height of the neck brace 5, so as to meet the needs of patients of different body shapes in head, neck and chest fixation rehabilitation. During the up-and-down movement of the T-shaped rod 6, the vertical channel of the comb-shaped hole 901 connects with the sliding hole 801, allowing the support block 602 to move smoothly up and down within the vertical channel of the comb-shaped hole 901. Once the neck sleeve 5 is adjusted to the desired height, the long tube sleeve 9 is rotated to connect the horizontal channel of the comb-shaped hole 901 with the sliding hole 801. The support block 602 moves to the innermost side of the horizontal channel of the comb-shaped hole 901, thus limiting and fixing the support block 602, thereby ensuring the neck... The stability and reliability of the neck sleeve 5 state: When the support block 602 moves to the innermost side of the transverse channel of the comb hole 901, the limiting block 1002 is exactly above the limiting groove 902; at this time, the short tube sleeve 10 moves downward under the thrust applied by the spring 11, so that the limiting block 1002 is accurately inserted into the limiting groove 902, thereby locking and fixing the long tube sleeve 9, effectively preventing the long tube sleeve 9 from rotating, and providing further assurance for the stability of the neck sleeve 5 state; The U-shaped support frame 4 slides within the through hole 601, significantly expanding the range of motion adjustment of the neck brace 5, thus fully meeting the needs of patients of different body types in head, neck, and chest fixation rehabilitation. After the U-shaped support frame 4 completes the sliding adjustment operation, the upper and lower nuts A7 are tightened in opposite directions. Nuts A7 are used to securely fix the U-shaped support frame 4, effectively ensuring the stability of the U-shaped support frame 4 during subsequent use. It can also be used to rotate the neck brace 5 according to the needs of different patients, allowing for adaptive adjustment of the pitch angle of the neck brace 5, better meeting the actual application requirements. During the rotation adjustment of the U-shaped part 41, the screw 13 slides within the through hole 1201. After the neck brace 5 is adjusted to the required angle, the nut B14 is tightened, fixing the screw 13. The screw 13 then fixes the U-shaped part 41, ensuring the stability of the pitch angle of the neck brace 5. When there is a need to readjust the height of the neck brace 5, the short sleeve 10 is moved upward, the spring 11 contracts due to the force, and the limiting block 1002 disengages from the limiting groove 902. The locking state of the long sleeve 9 is released. The long sleeve 9 is rotated in the opposite direction so that the vertical channel of the comb hole 901 is accurately connected to the sliding hole 801. The support block 602 can move into the vertical channel of the comb hole 901, and the limiting state of the support block 602 is released. The height of the neck brace 5 can then be adjusted adaptively according to the actual situation.

Claims

1. A head, neck, and chest fixation brace, comprising a rear chest guard (1), a strap (2), a front chest guard (3), a U-shaped support frame (4), a neck sleeve (5), a T-shaped rod (6), a nut A (7), a vertical tube seat (8), a long tube sleeve (9), a short tube sleeve (10), a spring (11), a rotating shaft (12), a screw (13), and a nut B (14); characterized in that, The rear chest protector (1) is connected to four connecting straps (2) on its periphery, and the other ends of the four connecting straps (2) are connected to the front chest protector (3); the rear side of the rear chest protector (1) is connected to a U-shaped support frame (4), and a neck brace (5) is installed on the top of the U-shaped support frame (4); the bottom of the U-shaped support frame (4) is connected to a T-shaped rod (6), and two nuts A (7) are connected to the bottom of both sides of the U-shaped support frame (4); a vertical tube seat (8) is fixedly installed on the rear side of the rear chest protector (1), and the bottom of the T-shaped rod (6) is slidably inserted into the vertical tube seat (8); the bottom outer side of the vertical tube seat (8) is fitted with There is a long tube sleeve (9), which is connected to the T-shaped rod (6); a short tube sleeve (10) is fitted on the outside of the vertical tube seat (8), and the short tube sleeve (10) is located at the top of the long tube sleeve (9); a spring (11) is fitted on the outside of the vertical tube seat (8), and the spring (11) is located at the top of the short tube sleeve (10), and the short tube sleeve (10) is located between the long tube sleeve (9) and the spring (11); a rotating shaft (12) and a screw (13) are connected to the middle of both sides of the U-shaped support frame (4), the rotating shaft (12) is connected to the screw (13), and two nuts B (14) are connected to the outside of the screw (13).

2. The head, neck, and chest fixation brace according to claim 1, characterized in that, The rear chest guard (1) has two guide holes (101) symmetrically arranged on the top rear side, and the two ends of the U-shaped support frame (4) slide through the two guide holes (101) respectively.

3. The head, neck, and chest fixation brace according to claim 1, characterized in that, The interior of the vertical tube seat (8) is hollow. The bottom of the T-shaped rod (6) is slidably connected to the vertical tube seat (8). Two sliding holes (801) are symmetrically arranged on the outside of the vertical tube seat (8). Two support blocks (602) are symmetrically arranged at the bottom of the T-shaped rod (6). The two support blocks (602) are slidably connected to the two sliding holes (801) respectively.

4. A head, neck, and chest fixation brace according to claim 3, characterized in that, The long tube sleeve (9) is rotatably connected to the vertical tube seat (8). Two comb-shaped holes (901) are provided on the outside of the long tube sleeve (9). The comb-shaped holes (901) are connected to the sliding holes (801). The end of the support block (602) is located inside the comb-shaped holes (901).

5. A head, neck, and chest fixation brace according to claim 1, characterized in that, The short sleeve (10) is slidably connected to the vertical tube seat (8). Two fixed blocks (802) are symmetrically arranged on the outside of the vertical tube seat (8), and two movable holes (1001) are symmetrically arranged on the outside of the short sleeve (10). The two fixed blocks (802) are slidably connected in the two movable holes (1001) respectively.

6. A head, neck, and chest fixation brace according to claim 1, characterized in that, The long sleeve (9) has two symmetrically arranged limiting grooves (902) at the top, and the short sleeve (10) has two symmetrically arranged limiting blocks (1002) at the bottom. The two limiting blocks (1002) are respectively inserted into the two limiting grooves (902).

7. A head, neck, and chest fixation brace according to claim 1, characterized in that, The top of the spring (11) contacts the vertical tube seat (8), and the bottom of the spring (11) contacts the top of the short tube sleeve (10).

8. A head, neck, and chest fixation brace according to claim 1, characterized in that, The top two ends of the T-shaped rod (6) are provided with through holes (601), and the bottom sides of the U-shaped support frame (4) are respectively inserted into the two through holes (601).

9. A head, neck, and chest fixation brace according to claim 8, characterized in that, The bottom of both sides of the U-shaped support frame (4) is provided with external threads. Nut A (7) is threadedly connected to the U-shaped support frame (4). The two nuts A (7) are respectively in contact with the upper and lower sides of the end of the T-shaped rod (6).

10. A head, neck, and chest fixation brace according to claim 1, characterized in that, The U-shaped support frame (4) includes a U-shaped part (41) and two vertical rods (42). The U-shaped part (41) is connected to the neck brace (5). The vertical rods (42) are connected to the back chest plate (1) and the T-shaped rod (6). The two sides of the U-shaped part (41) are rotatably connected to the top of the two vertical rods (42). One end of the rotating shaft (12) is rotatably connected to the vertical rod (42). The other end of the rotating shaft (12) is provided with a through hole (1201). The top of the screw (13) is hinged to the U-shaped part (41). The bottom of the screw (13) slides through the through hole (1201). Nut B (14) is threadedly connected to the screw (13). The two nuts B (14) are in contact with the upper and lower sides of the other end of the rotating shaft (12).

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