Cervical traction chair
By designing a semi-prone position and adjustable chest and head pillow devices, combined with a rope shaft locking mechanism, the problems of patients unconsciously bending and small changes in traction angle in existing cervical traction chairs have been solved, achieving better traction effect and comfort.
Patent Information
- Application Number
- CN202423281614.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing cervical traction chairs are prone to affecting the traction effect when patients unconsciously bend their backs or sway their bodies during use. In addition, the traction angle changes little, resulting in unsatisfactory comfort and traction effect.
A cervical traction chair was designed, which adopts a semi-prone position and allows for height and angle adjustment through chest pillow and head pillow adjustment devices. Combined with a rope shaft locking mechanism, it ensures the patient remains stable and provides good support and traction effect.
It improves patient comfort and traction effect, avoids the problem of involuntary back bending, allows for long-term traction, is suitable for patients of different body types, and improves ease of use and safety.
Smart Images
Figure CN223887087U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a cervical vertebra rehabilitation auxiliary equipment, especially a cervical vertebra traction chair. BACKGROUND
[0002] The cervical vertebra traction chair is an instrument for cervical vertebra traction and correction, and the existing cervical vertebra traction chair usually suspends a cervical vertebra traction belt above a seat, and when traction is performed on the cervical vertebra, a patient sits on the seat, keeps the upper body upright, and is tractioned by the cervical vertebra traction belt. In the process of using the cervical vertebra traction chair, the patient's position is not easy to fix, and if the patient unconsciously bends the back or shakes the body, the traction effect will be affected, and the patient needs to keep the back straight during the traction process, which is not comfortable and is difficult to last. In addition, the traction angle of the traction method changes little, and the traction effect is not ideal. SUMMARY
[0003] The utility model provides a cervical vertebra traction chair which can prevent the patient from unconsciously bending the back during the traction process and can adjust the traction angle and has good traction effect.
[0004] To achieve the above object, the utility model provides a cervical vertebra traction chair which comprises a chair frame, a seat plate, a chest pillow and a headrest, the seat plate is fixed on the chair frame, the chest pillow and the headrest are installed on the chair frame through a chest pillow adjusting device and a headrest adjusting device respectively, the headrest adjusting device comprises a headrest bracket, a head pulling block is slidably arranged on the headrest bracket, a neck pulling shaft is arranged above the top end of the head pulling block, a pulling rope rod is arranged below the bottom end of the head pulling block, a pulling rope shaft is rotatably arranged at the top end of the headrest bracket, the pulling rope shaft is provided with a pulling rope shaft locking mechanism to lock the pulling rope shaft, the headrest is fixed on the head pulling block, and a containing cavity for placing the face of a user is arranged on the headrest. When the cervical vertebra traction chair with the technical scheme is used to perform cervical vertebra traction on a patient, the patient sits on the seat plate, lies on the chest pillow, and places the face in the containing cavity. The semi-prone position is more comfortable than the upright sitting position, can relieve the mental stress of the patient, enables the patient to insist on the traction, and can achieve good traction effect in cooperation with a doctor for long-term traction, so that the cervical vertebra is corrected. The cervical vertebra traction chair does not have the problem that the patient unconsciously bends the back during the traction process in the sitting position of the prior art, and has good traction effect.
[0005] Further, the headrests are two in number and are arranged at intervals, and the gap between the two forms the accommodating cavity, the bottom of each of the two headrests is fixedly connected with the head pulling block, the top end of each of the two head pulling blocks is fixedly connected with a support rod, the two ends of the neck pulling shaft are connected with the top of the two support rods respectively, and the two head pulling blocks are slidably connected with the guide rails fixed on the two sides of the headrest bracket through sliding blocks. The headrests are two in number and simple in structure, the patient places the face in the gap between the two headrests during use, the use is convenient, and the comfort is high.
[0006] Further, the headrest adjusting device further comprises a lifting adjusting frame, a lifting adjusting gas support rod and an angle adjusting gas support rod, the lifting adjusting frame is slidably connected with the stand of the chair frame, the top thereof is connected with the headrest bracket through a first damping hinge, one end of the lifting adjusting gas support rod is fixedly connected with the lifting adjusting frame, the other end thereof is connected with the bottom frame of the chair frame, a stepping plate for controlling the extension and retraction of the lifting adjusting gas support rod is arranged on the bottom frame, one end of the angle adjusting gas support rod is hingedly connected with the lifting adjusting frame, the other end thereof is hingedly connected with the headrest bracket through a fixing seat, and an angle adjusting handle is arranged on the fixing seat. The height and the pitch angle of the headrest are adjusted through the lifting adjusting gas support rod and the angle adjusting gas support rod, so that the requirements of different users are met.
[0007] Further, the chair frame comprises a horizontally arranged bottom frame, a vertically arranged stand and a support, the stand is made of two parallel arranged round pipes, the bottom ends of the two round pipes are fixedly connected with the bottom frame, the top end of the stand is inserted with the lifting adjusting frame, the support is L-shaped, one end of the support is fixedly connected with the stand, the other end thereof is fixedly connected with the bottom frame, and the seat plate is fixedly arranged on the support. The chair frame is simple in structure and easy to manufacture.
[0008] Further, the chest pillow adjusting device comprises a chest pillow bracket, a chest pillow adjusting gas support rod and a chest pillow locking mechanism, the chest pillow is slidably arranged on the chest pillow bracket through a sliding mechanism, the bottom surface of the chest pillow bracket is fixedly connected with an adjusting block in the middle, the bottom surface of the chest pillow bracket is fixed on the stand through the chest pillow locking mechanism at the lower part, the adjusting block is connected with the chest pillow adjusting gas support rod through a second damping hinge, and the chest pillow adjusting gas support rod is arranged on the stand. The chest pillow adjusting device is simple in structure, the angle and the front and back of the chest pillow can be adjusted, the height can be adjusted through the cooperation of the sliding block and the guide rod, the use is convenient, and the requirements of different users can be met.
[0009] Further, the sliding mechanism comprises a sliding plate, a guide rod fixed in the chest pillow bracket and a sliding block, the sliding plate is fixedly connected with the bottom surface of the chest pillow, the other surface of the sliding plate relative to the chest pillow is fixedly connected with the sliding block, the sliding block is installed on the guide rod and forms a sliding pair with the guide rod, one side or both sides of the sliding plate are provided with locking plates arranged perpendicularly to the sliding plate, locking holes are formed in the locking plates, and locking knobs are threadedly connected in the locking holes.
[0010] Further, the chest pillow locking mechanism comprises a locking piece and a locking rod, one end of the locking piece is hingedly connected with the stand, the other end of the locking piece is fixedly connected with an adjusting rod, one end of the locking rod is hingedly connected with the bottom surface of the chest pillow bracket, and the other end of the locking rod passes through the locking piece and is locked by a locking nut.
[0011] Further, the pull rope shaft locking mechanism comprises a ratchet fixed on the pull rope shaft, a ratchet buckle and an unlocking block, the ratchet shaft is fixed on one end of the pull rope shaft, one end of the ratchet buckle is rotatably connected with the headrest bracket, the other end of the ratchet buckle is fixedly connected with the unlocking block, pawls matched with the ratchet are arranged on the ratchet buckle, and an unlocking handle is arranged on the unlocking block.
[0012] Further, the cervical vertebra traction chair further comprises a hand support fixed on the chair frame through a hand support frame.
[0013] Compared with the prior art, the cervical vertebra traction chair has the following technical effects:
[0014] 1. When the cervical vertebra traction chair is used to perform cervical vertebra traction on a patient, the patient sits on the seat plate, lies on the chest pillow and places the face in the accommodating cavity, the semi-prone position is more comfortable than the straight-back sitting position, can relieve the mental stress of the patient, enables the patient to insist on traction, and can achieve good traction effect in cooperation with a doctor for long-term traction, so that the cervical vertebra is corrected, and the problem that the patient's back is unconsciously bent during traction in the sitting position in the prior art does not exist, and the traction effect is good.
[0015] 2. The chest pillow of the cervical vertebra traction chair can provide a good supporting force for the chest, the headrest supports the head of the patient, provides a supporting force for the head of the patient, improves the comfort of the head of the patient, and enables the head of the patient to be kept stable, so that the patient can be kept still and the problem that the traction effect is affected due to displacement of the patient's body during traction does not exist.
[0016] 3. The chest pillow and head pillow of this utility model can be adjusted in height, angle and distance between the chest pillow and head pillow through the chest pillow adjustment device and head pillow adjustment device respectively, so as to be suitable for patients of different body types. Furthermore, by adjusting the position and angle of the chest pillow and head pillow through the chest pillow adjustment device and head pillow adjustment device respectively, the chest pillow and head pillow can be adaptively adjusted, which effectively improves the user's convenience.
[0017] 4. The headrest and chest pillow of this utility model are designed to be separate and can be adjusted separately through corresponding adjustment devices. The user can adjust the headrest without affecting the chest sensation. The headrest can be moved up and down, forward and backward, and tilted. The headrest adjustment device can also adjust the traction angle, thereby providing different traction effects on the patient's neck and improving the traction effect.
[0018] 5. The sliding design between the headrest and the headrest bracket of this utility model facilitates the user's adjustment of the traction force and makes it convenient to use.
[0019] 6. The pull rope of this utility model has a pull rope shaft locking mechanism, which can lock the pull rope shaft. It is convenient to use. The pull rope shaft locking mechanism with ratchet and pawl can not only make fine adjustments to the position to adjust the traction force, but also has a stable structure after locking, preventing accidents during traction and ensuring the safety of the cervical traction chair. It is highly safe.
[0020] 7. The hand support of this utility model provides support for the patient's arm, effectively avoiding the problem of discomfort caused by the arm having nowhere to rest during traction, increasing the patient's comfort, relieving arm fatigue, allowing the patient's body to be in a relaxed state during traction, relieving mental stress, improving the traction effect, and playing an auxiliary role in the patient's traction duration. Attached Figure Description
[0021] The accompanying drawings, which form part of this specification and serve to further illustrate the preferred embodiments of the present invention, and together with the specification, serve to explain the principles of the present invention. In the drawings:
[0022] Figure 1 This is a schematic diagram of the cervical traction chair of this utility model;
[0023] Figure 2 yes Figure 1 A schematic diagram of the side view structure;
[0024] Figure 3 This is a schematic diagram of the rope shaft locking mechanism of the cervical traction chair of this utility model.
[0025] The labels in the diagram represent the following: 1. Chair frame, 101. Base frame, 102. Upright frame, 103. Support, 104. Fixing block; 2. Seat plate; 3. Chest pillow; 4. Headrest; 5. Receiving cavity; 6. Headrest adjustment device, 601. Headrest bracket, 602. Headrest pull block, 603. Guide rail, 604. Slider, 605. Connecting piece, 606. Lifting adjustment frame, 607. Lifting adjustment gas strut, 608. Angle adjustment gas strut, 609. Mounting plate, 610. First damping hinge, 611. Foot pedal, 612. Fixing seat; 8. Cable locking mechanism, 801. Ratchet, 802. Ratchet buckle, 802. A. Mounting part, 802; B. Locking part, 803; C. Unlocking part, 803; Unlocking block, 804; Pawl, 805; Unlocking handle; 9. Chest pillow adjustment device, 901; Chest pillow bracket, 902; Locking knob, 903; Mounting bracket, 904; Moving block, 905; Second damping hinge, 906; Chest pillow locking mechanism, 961; Locking plate, 961; 962; Locking rod, 963; Connecting shaft, 964; Sleeve, 965; Locking nut, 964; 907; Slide plate, 908; Adjusting block; 10. Mounting block; 11. Rubber foot; 12. Pull rope shaft; 13. Support rod; 14. Hand support; 15. Hand support bracket. Detailed Implementation
[0026] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.
[0027] Example: Figure 1 and 2As shown, this embodiment provides a cervical traction chair, which includes a chair frame 1, a seat board 2, a chest pillow 3, and a head pillow 4. The head pillow 4 has a cavity 5 for placing the patient's face. The seat board 2 is fixed to the chair frame 1. The chest pillow 3 and head pillow 4 are respectively mounted on the chair frame 1 via a chest pillow adjustment device 9 and a head pillow adjustment device 6. When using this cervical traction chair for cervical traction, the patient sits on the seat board 1, lies prone on the chest pillow 3, and places their face in the cavity 5. This semi-prone position is more comfortable than a seated position with an upright back, allowing the patient to undergo traction for extended periods, relieving mental stress and improving the traction effect. Furthermore, the chest pillow 3 provides good support for the chest, keeping the patient still and preventing the traction effect from being affected by body displacement during traction. The head pillow 4 supports the patient's head, providing support and improving head comfort while also keeping the head stable. The chest pillow 3 and head pillow 4 can be adjusted in height, angle, and distance between them via the chest pillow adjustment device 6 and head pillow adjustment device 9, respectively, making them suitable for patients of different body types. Furthermore, the position and angle of the chest pillow 3 and head pillow 4 can be adjusted via the chest pillow adjustment device 9 and head pillow adjustment device 6, respectively, allowing for adaptive adjustments and effectively improving user convenience. The head pillow adjustment device 6 allows for adjustment of the traction angle, thus providing different traction effects on the patient's neck and improving the traction effect. When using this cervical traction chair, the patient's position is semi-prone, eliminating the problem of involuntary back bending during traction that exists in existing seated positions, resulting in better traction effects.
[0028] The chair frame 1 in this embodiment includes a horizontally arranged base frame 101, a vertically arranged upright frame 102, and a support 130. The base frame 101 is an I-beam frame consisting of a longitudinal rod and crossbars fixed to both ends of the longitudinal rod by welding. Rubber feet 11 are fitted to both ends of the two crossbars. Both the longitudinal rod and the crossbars are square tubes or square steel. The upright frame 102 is made of two parallel round tubes. The bottom ends of the two round tubes are fixedly connected to the base frame 101 by fixing blocks 104. Specifically, the two fixing blocks 104 are fixed to the longitudinal rod by welding. The top end of the upright frame 102 is inserted into a lifting adjustment frame 606, allowing the lifting adjustment frame 606 to slide along the upright frame 102. The bracket 103 is L-shaped and is made of two vertical square tubes welded together. One end of the bracket 103 is fixedly connected to the upright 102 through the fixing plate 105, and the other end is fixedly connected to the base frame 101 by welding. A seat plate 1 is fixedly installed on the bracket 103. Multiple reinforcing blocks are arranged at intervals and welded to the bracket 103 at the fixing point of the seat plate 1 to improve the stability of the seat plate 1.
[0029] The headrest adjustment device in this embodiment has the following structure: The headrest adjustment device 6 includes a headrest bracket 601, a head pull block 602 slidably mounted on the headrest bracket 601, a neck pull shaft 7 above the top of the head pull block 602, a pull rope rod 11 below the bottom of the head pull block 602, and a pull rope shaft 12 at the top of the headrest bracket 601. Both ends of the pull rope shaft 12 are connected to mounting blocks 10 fixed to the top of the headrest bracket 601, and both ends of the pull rope shaft 12 are rotatably connected to the corresponding mounting blocks 10. The pull rope shaft 12 has a pull rope shaft locking mechanism 8 to lock the pull rope shaft 12. The headrest 4 is fixed on the head pull block 602, and the headrest 3 moves along the headrest bracket 601 by pulling the head pull block 602.
[0030] In this embodiment, there are two headrests 4, with a gap between them forming a receiving cavity 5. Each headrest 4 has a head pull block 602 fixedly connected to its bottom, and a support rod 13 fixedly connected to the top of each head pull block 602. The two ends of the neck pull shaft 7 are connected to the tops of the two support rods 13 respectively. Each head pull block 602 is slidably connected to guide rails 603 fixed on both sides of the headrest bracket 601 via sliders 604. To improve the stability of the connection between the guide rails 603 and the headrest bracket 601, several spaced connecting pieces 605 are fixedly connected to the side of the headrest bracket 601. The connecting pieces 605 are welded to the headrest bracket 601, and the guide rails 603 are connected to the connecting pieces 605 by bolts. In other embodiments, only one headrest 4 may be used, with a receiving cavity 5 provided on the headrest 4 for placing the patient's face.
[0031] The headrest adjustment device 6 in this embodiment also includes a lifting adjustment frame 606, a lifting adjustment gas strut 607, and an angle adjustment gas strut 608. The lifting adjustment frame 606 consists of two circular inserts and a circular connecting rod connected to the top of the circular inserts. The inserts are inserted into the upright frame 102 and slidably connected to the upright frame 102. Under the action of the lifting adjustment gas strut 607, the two inserts of the lifting adjustment frame 606 slide up and down in the two circular tubes of the upright frame 102, thereby adjusting the height of the headrest 1. One end of the lifting adjustment gas strut 607 is fixedly connected to the lifting adjustment frame 606, and the other end is connected to the base frame 101. A foot pedal 611 for controlling the extension and retraction of the lifting adjustment gas strut 607 is provided on the base frame 101. A mounting plate 609 is fixedly connected to the top of the upright frame 102. The mounting plate 609 is inclined downward. Specifically, the mounting plate 609 is welded to the circular connecting rod, and mounting plates 609 are fixedly connected to both ends of the circular connecting rod. A first damping hinge 610 is installed on both mounting plates 609. The upright frame 102 is connected to the headrest bracket 601 through the first damping hinge 610. Under the action of the angle adjusting gas strut 608, the headrest 1 rotates around the hinge axis of the first damping hinge 610 to realize the angle adjustment of the headrest 1. One end of the angle adjusting gas strut 608 is hinged to the lifting adjustment frame 606, and the other end is hinged to the headrest bracket 601 through the fixed seat 612. An angle adjusting handle 613 is provided on the fixed seat 612. The connection method of the angle adjusting gas strut 608, the fixed seat 612 and the headrest bracket 601 is as follows: the fixed seat 612 is fixedly connected to the headrest bracket 601, and the angle adjusting gas strut 608 is hinged to the fixed seat 612.
[0032] In this embodiment, the chest pillow adjustment device 9 includes a chest pillow bracket 901, a chest pillow adjustment gas strut (not shown in the figure), and a chest pillow locking mechanism 906. The chest pillow 3 is slidably mounted on the chest pillow bracket 901 via a sliding mechanism. An adjustment block 908 is fixedly connected to the center of the bottom surface of the chest pillow bracket 901. The lower part of the bottom surface of the chest pillow bracket 901 is connected to the upright frame 102 via the chest pillow locking mechanism 906. The adjustment block 908 is connected to the chest pillow adjustment gas strut via a second damping hinge 905. The chest pillow adjustment gas strut is mounted on the upright frame 102. Specifically, the chest pillow adjusting gas strut is mounted on the upright frame 102 via a mounting bracket 903. The mounting bracket 903 includes a hollow mounting cylinder, which is fixedly connected to the upright frame 102 via a connecting piece. The chest pillow adjusting gas strut is installed inside the mounting cylinder. One end of the chest pillow adjusting gas strut is fixedly connected to a moving block 904, and the other end is provided with an adjusting handle. The moving block 904 is located at the end of the mounting cylinder near the chest pillow 3 and is located on the outside of the mounting cylinder. The moving block 904 is connected to the second damping hinge 905. Under the action of the chest pillow adjusting gas strut, the moving block 904 drives the adjusting block 908 to move back and forth. The adjusting block 908 drives the chest pillow bracket 901 to move, which in turn drives the chest pillow 3 to move. This causes the chest pillow 3 to rotate around the hinge axis between the chest pillow locking mechanism 906 and the chest pillow bracket 901, thereby adjusting the angle of the chest pillow 3.
[0033] The structure of the chest pillow locking mechanism in this embodiment is as follows: See Figure 1 and Figure 2 The chest pillow locking mechanism 906 includes a locking plate 961 and a locking rod 962. One end of the locking plate 961 is fixedly connected to the upright frame 102 and is inclined. A sleeve 964 is fixedly connected to one end of the locking plate 961. A connecting shaft 963 is fixedly connected to the upright frame 102. The sleeve 964 is fitted onto the connecting shaft 963, and the connecting shaft 963 and the sleeve 964 are interference-fitted to prevent the sleeve 964 from rotating. The locking rod 962 is a threaded rod, one end of which is hinged to the lower part of the bottom surface of the chest pillow bracket 901, and the other end passes through the locking plate 961 and is locked by a locking nut 965. The cervical traction chair with this chest pillow locking mechanism can not only adjust the angle of the chest pillow 3 by adjusting the chest pillow adjustment gas strut, but also adjust the angle of the chest pillow 3 by adjusting the length of the locking rod 962 extending out of the locking plate 961, improving the user's convenience and facilitating the installation of the chest pillow bracket 901 for easier assembly. In other embodiments, the locking rod 962 is a stepped rod with one end larger than the other. Its larger end is hinged to the chest pillow bracket 901 through a hinge seat and a hinge shaft, and its smaller end is inserted into the hole of the adjusting locking rod 962. Positioning is achieved through the cooperation of the stepped surface and the locking piece 961.
[0034] It should be noted that the lifting gas strut, angle adjustment gas strut, and chest pillow adjustment gas strut of the headrest adjustment device described in this utility model are all commercially available products. How they extend and retract is existing technology, and how they are adjusted by the adjustment handle or foot pedal is also existing technology, which will not be described in detail here.
[0035] In this embodiment, the chest pillow 3 is slidably connected to the chest pillow bracket 901 via a sliding mechanism, thereby facilitating the adjustment of the height of the chest pillow 3. (See also...) Figure 2 The sliding mechanism includes a sliding plate 907, a guide rod fixed within a chest pillow bracket 901, and a sliding block. The chest pillow bracket 901 is a rectangular frame structure welded from metal square tubing. Since the guide rod and sliding block are installed within the chest pillow bracket 901, after the chest pillow 3 is installed (not shown in the accompanying drawings), the sliding plate 907 is fixedly connected to the bottom surface of the chest pillow 3. The other side of the sliding plate 907, opposite the chest pillow, is fixedly connected to the sliding block. The sliding block is mounted on the guide rod and forms a sliding pair with it. This structure allows the chest pillow 3 to reciprocate linearly along the guide rod under the action of the sliding block, thereby adjusting the position of the device. A locking plate perpendicular to the sliding plate is provided on one or both sides of the sliding plate 907, meaning the cross-section of the sliding plate 907 is L-shaped or π-shaped. A locking hole 902 is provided on the locking plate. The locking hole 907 is internally threaded with a locking knob 902. After the chest pillow 3 is adjusted to its proper position, rotating the locking knob 902 causes its inner end face to press against the chest pillow support 901, thus locking the chest pillow 3. To readjust the chest pillow 3, simply rotate the locking knob 902 in the opposite direction. This design is convenient to use. To reduce the weight of the sliding plate 907, a slotted hole is provided on the locking plate.
[0036] like Figure 3As shown, the structure of the pull rope shaft locking mechanism in this embodiment is as follows: The pull rope shaft locking mechanism 8 includes a ratchet 801, a ratchet buckle 802, and an unlocking block 803 fixed on the pull rope shaft 12. The ratchet shaft 801 is fixed at one end of the pull rope shaft 12. The ratchet shaft 801 and the pull rope shaft 12 are connected by a key. A connecting hole 806 is provided on the ratchet buckle 802. The connecting hole 806 is connected to a pin that is adapted to the connecting hole on the headrest bracket 601. The gap between the two is fitted so that one end of the ratchet buckle 802 is rotatably connected to the headrest bracket 601. The other end of the ratchet buckle 802 is fixedly connected to the unlocking block 803. A pawl 804 adapted to the ratchet 801 is provided on the ratchet buckle 802. The pawl 804 engages with the teeth of the ratchet 801 to lock the ratchet 801. An unlocking handle 805 is provided on the unlocking block 803. By turning the unlocking handle 805, the ratchet latch 802 rotates around the pin, thereby unlocking the ratchet 801. The ratchet latch 802 is located above the ratchet 801, and the pawl 804 engages with the ratchet 801 to stop it. One end of the ratchet latch 802 is a mounting part 802A for connecting to the headrest bracket 601, and the other end is an unlocking part 802C for mounting the unlocking block 803. The unlocking block 803 is welded to the unlocking part 802C, and the middle part of the ratchet latch 802 is a locking part 802B. A pawl 804 is located on the lower center of the ratchet buckle 802. The pawl 804 and the ratchet buckle 802 are an integral structure, which can be formed by milling during processing. An upwardly curved part is provided on the lower side of the ratchet buckle 802 to create space to avoid interference between the ratchet buckle 802 and the ratchet 801. This space extends from the pawl 804 toward the unlocking part 802C. The rope shaft locking mechanism using this ratchet and pawl not only allows for fine-tuning of the position to meet the needs of different patients, but also ensures structural stability after locking, preventing accidents during traction and guaranteeing the safety of the cervical traction chair.
[0037] As another embodiment of this utility model: This embodiment adds a hand support to the above embodiment, while the other structures are the same as those in the above embodiment. Figure 1 and 2 As shown, the cervical traction chair in this embodiment also includes hand rests 14, with two hand rests 14 fixed to the upright frame 102 of the chair frame 1 via hand rest brackets 15. The hand rests provide support for the patient's arms, effectively preventing discomfort caused by a lack of support during traction, increasing patient comfort, relieving arm fatigue, allowing the patient to relax during traction, improving the traction effect, and aiding in the duration of traction.
[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cervical traction chair, comprising a chair frame, a seat, a chest pillow, and a headrest, wherein the seat is fixed to the chair frame, and the chest pillow and the headrest are respectively mounted on the chair frame via a chest pillow adjustment device and a headrest adjustment device, characterized in that, The headrest adjustment device includes a headrest bracket, a head pull block slidably mounted on the headrest bracket, a neck pull shaft above the top of the head pull block, a pull rope rod below its bottom end, a pull rope shaft at the top of the headrest bracket, and a pull rope shaft having a pull rope shaft locking mechanism to lock the pull rope shaft. The headrest is fixed on the head pull block, and the headrest has a receiving cavity for placing the patient's face.
2. The cervical traction chair according to claim 1, characterized in that, The number of headrests is two, and there is a gap between the two headrests, which is a receiving cavity. The bottom of each of the two headrests is fixedly connected to the head pull block, and the top of each of the two head pull blocks is fixedly connected to the support rod. The two ends of the neck pull shaft are respectively connected to the top of the two support rods. The two head pull blocks are slidably connected to the guide rails fixed on both sides of the headrest bracket by sliders.
3. The cervical traction chair according to claim 1 or 2, characterized in that, The headrest adjustment device further includes a lifting adjustment frame, a lifting adjustment gas strut, and an angle adjustment gas strut. The lifting adjustment frame is slidably connected to the upright of the chair frame, and its top is connected to the headrest support via a first damping hinge. One end of the lifting adjustment gas strut is fixedly connected to the lifting adjustment frame, and the other end is connected to the base frame of the chair frame. A foot pedal for controlling the extension and retraction of the lifting adjustment gas strut is provided on the base frame. One end of the angle adjustment gas strut is hinged to the lifting adjustment frame, and the other end is hinged to the headrest support via a fixed seat. An angle adjustment handle is provided on the fixed seat.
4. The cervical traction chair according to claim 3, characterized in that, The chair frame consists of a horizontally arranged base frame, a vertically arranged upright frame, and a support frame. The upright frame includes two parallel round tubes, the bottom ends of which are fixedly connected to the base frame, and the top end of the upright frame is inserted into the lifting adjustment frame. The support frame is L-shaped, with one end fixedly connected to the upright frame and the other end fixedly connected to the base frame. The seat plate is fixedly mounted on the support frame.
5. The cervical traction chair according to claim 4, characterized in that, The chest pillow adjustment device includes a chest pillow bracket, a chest pillow adjustment gas strut, and a chest pillow locking mechanism. The chest pillow is slidably mounted on the chest pillow bracket via a sliding mechanism. An adjustment block is fixedly connected to the center of the bottom surface of the chest pillow bracket, and the lower part of its bottom surface is hinged to the upright frame via the chest pillow locking mechanism. The adjustment block is connected to the chest pillow adjustment gas strut via a second damping hinge, and the chest pillow adjustment gas strut is mounted on the upright frame.
6. The cervical traction chair according to claim 5, characterized in that, The sliding mechanism includes a sliding plate, a guide rod fixed inside the chest pillow bracket, and a sliding block. The sliding plate is fixedly connected to the bottom surface of the chest pillow, and the other side of the sliding plate opposite to the chest pillow is fixedly connected to the sliding block. The sliding block is mounted on the guide rod and forms a sliding pair with the guide rod. A locking plate is provided on one or both sides of the sliding plate and is perpendicular to the sliding plate. A locking hole is provided on the locking plate, and a locking knob is threaded into the locking hole.
7. The cervical traction chair according to claim 5, characterized in that, The chest pillow locking mechanism includes a locking plate and a locking rod. The locking plate is fixedly connected to the upright and is inclined. One end of the locking rod is hinged to the lower part of the bottom surface of the chest pillow bracket, and the other end passes through the locking plate and is locked by a locking nut.
8. The cervical traction chair according to claim 1, characterized in that, The aforementioned pull rope shaft locking mechanism includes a ratchet, a ratchet buckle, and an unlocking block fixed on the pull rope shaft. The ratchet shaft is fixed to one end of the pull rope shaft. One end of the ratchet buckle is rotatably connected to the headrest bracket, and the other end is fixedly connected to the unlocking block. A pawl adapted to the ratchet is provided on the ratchet buckle, and an unlocking handle is provided on the unlocking block.
9. The cervical traction chair according to claim 8, characterized in that, The cervical traction chair also includes a hand rest, which is fixed to the chair frame by a hand-chest pillow bracket.