Auxiliary walking frame for nursing

Abstract

The utility model discloses a nursing auxiliary walking frame which comprises a movable frame, an expansion device is arranged on the movable frame, a fixing sleeve is arranged on one side of the movable frame, a control device is connected to the top end of the fixing sleeve, and the control device comprises a connecting sleeve, a matching sleeve, a spring, a clamping plate, a sliding block, an inner side sleeve, an adaptive sleeve, a sliding groove and a sliding plate. The clamping plate is connected with the sliding block through the spring, the sliding block is connected to one side of the sliding plate, the sliding groove is obliquely formed in the connecting sleeve, the reinforcing mechanism is installed on the outer side of the connecting sleeve, and the reinforcing mechanism comprises a movable block, a movable plate, a fixed block, a clamping sleeve, a limiting block, a clamping block, a supporting rod, a movable spring, a clamping spring and a via hole; the supporting rod is connected to one side of the clamping sleeve, the movable spring is connected with the movable block and the fixed block, the via hole is formed in the movable plate, the clamping spring is connected with the two adjacent clamping blocks, and the problems of handle structural design, height adjustment and structural stability are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of nursing assistive walking frame, and more specifically, it relates to a nursing assistive walking frame. Background Technology

[0002] With the increasing trend of population aging and the continuous improvement of rehabilitation medical needs, nursing assistive walking frames have become an indispensable and important assistive tool in the daily lives of the elderly and rehabilitation patients. However, current products still have key technical problems that need to be solved in terms of handle structure design, height adjustment and structural stability.

[0003] In existing technologies, the handle structure of nursing assistive walking frames generally adopts a simple horizontal design. This structure has revealed significant defects in practical applications. Specifically, traditional handle structures usually only have a single horizontal grip bar. Some elderly patients and rehabilitation patients have varying degrees of insufficient leg support, which makes it impossible to provide good support for the body. More importantly, some patients experience hand fatigue and discomfort during use, and some patients even have to stop walking due to unstable grip. This simple horizontal handle design not only fails to meet the needs of different patients, but also increases the safety risks during use.

[0004] Secondly, regarding the issue of handle height adjustment, existing technologies generally adopt a fixed height design. When the handle height does not match the patient's height, the effectiveness of use decreases significantly: if the fixed handle height is too high, it causes shoulder fatigue and discomfort for the patient; if the fixed handle height is too low, it causes the patient to bend over. Moreover, medical institutions need to provide services to patients of different heights at the same time, but traditional walking frames cannot meet this need, forcing institutions to equip themselves with multiple walking frames of different heights. Cost analysis shows that this multi-device configuration increases equipment procurement costs, storage space requirements, and the difficulty of equipment management and maintenance.

[0005] Furthermore, while some improved products have indeed emerged on the market to address the aforementioned height adjustment issue by introducing stepless adjustment mechanisms to achieve personalized handle height adjustment, these improved structures present significant safety hazards. Although these designs exhibit sufficient fixing force under static conditions, they demonstrate significant instability in dynamic usage environments. Specifically, when the walking frame moves, the system generates noticeable bumps and impacts, which are directly transmitted to the adjustment structure. After a period of use, the stability of the adjustment structure decreases, and signs of loosening appear. More seriously, under prolonged bumping, some even experience sudden changes in handle height, leading to loss of balance and an increased risk of falls. This technical defect, stemming from the simple structure and susceptible to loosening or even displacement due to bumps and forces, has become a key bottleneck restricting the widespread application of improved products, significantly impacting patient safety and user experience. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] In view of the problems existing in the prior art, this utility model provides a nursing auxiliary walking frame to solve the technical problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: a nursing auxiliary walking frame, including a movable frame, an extension device on the movable frame, a fixed sleeve fixedly mounted on one side of the movable frame, a control device connected to the top of the fixed sleeve, the control device including a connecting sleeve, a mating sleeve, a spring, a clamping plate, a sliding block, an inner sleeve, an adapter, a sliding groove, and a sliding plate, the connecting sleeve being fixedly mounted at one end of the fixed sleeve, the mating sleeve being rotatably mounted on the outside of the connecting sleeve, the clamping plate being movably connected to the sliding block via a spring, the adapter being disposed in the connecting sleeve, the sliding block being fixedly connected to one side of the sliding plate, the outer wall of the inner sleeve being movably connected to the inner wall of the mating sleeve via threads, and the sliding groove being inclinedly formed. In the connecting sleeve, the sliding plate is slidably disposed in the sliding groove. A reinforcing mechanism is installed on the outside of the connecting sleeve. The reinforcing mechanism includes a moving block, a moving plate, a fixed block, a locking sleeve, a limiting block, a locking block, a support rod, a moving spring, a locking spring, and a through hole. The moving block is fixedly installed on one side of the moving plate. The moving plate is rotatably installed on the outside of the connecting sleeve. The fixed block is fixedly installed on the outside of the connecting sleeve. The locking sleeve is disposed on the outside of the connecting sleeve. The limiting block is fixedly installed on the outside of the connecting sleeve. The locking block is movably disposed on one side of the mating sleeve. The support rod is fixedly connected to one side of the locking sleeve. The two ends of the moving spring are connected to the moving block and the fixed block. The through hole is opened on the moving plate. The two ends of the locking spring are respectively connected to two adjacent locking blocks.

[0010] The present invention is further configured such that the extension device includes a protective sleeve, a protective plate, a movable wheel, a telescopic rod, a longitudinal rod, and a crossbar. The protective sleeve is detachably installed on the outside of the longitudinal rod and the outside of the crossbar, respectively. The protective plate is fixedly installed above the longitudinal rod. The bottom end of the telescopic rod slides into the fixed sleeve. The longitudinal rod is fixedly connected to the crossbar. The crossbar is fixedly connected to the top end of the telescopic rod. The movable wheel is rotatably installed on the bottom end of the movable frame and the fixed sleeve.

[0011] The present invention is further configured such that an adapter plate is connected to one side of the sliding block, and an adapter groove is provided in the adapter plate, and the adapter plate slides in the adapter groove.

[0012] The present invention is further configured such that the side wall of the connecting sleeve is provided with a mating groove, a mating block is slidably provided in the mating groove, and the inner wall of the inner sleeve is fixedly connected to the outer wall of the matching sleeve through the mating block.

[0013] The present invention is further configured such that a moving rod is fixedly connected to one side of the moving block, a moving hole is provided in the fixed block, and one end of the moving rod is slidably inserted into the moving hole.

[0014] The present invention is further configured such that a locking wheel is rotatably provided on one side of the locking block, the locking wheel is locked between two limiting blocks, a plurality of locking rails are fixedly provided on one side of the mating sleeve, a locking groove is provided in the locking block, and the locking rails are adapted to the locking grooves.

[0015] The present invention is further configured such that a sliding groove is provided on the outer side of the connecting sleeve, a slider is fixedly provided on the inner side of the locking sleeve, the slider slides in the sliding groove, and a support spring is movably sleeved on the outer side of the support rod, with one end of the support spring being in contact with the moving plate.

[0016] The present invention is further configured such that a sliding rod is fixedly provided on one side of the clamping plate, a sliding groove is provided in the sliding block, one end of the sliding rod slides into the sliding groove, and a plurality of anti-slip strips are fixedly provided on the inner side of the clamping plate.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides a nursing auxiliary walking frame, which has the following beneficial effects:

[0019] 1. The extension device, through the coordinated design of detachable sleeves, plates, longitudinal bars, and crossbars, provides flexible usage methods for patients with different support needs. For patients with strong upper limb strength, they can directly grasp the sleeves on the crossbars to move the walking frame; while for patients with weaker muscles, they can place their forearms stably on the plates while holding the sleeves on the longitudinal bars with both hands, using the overall strength of their upper limbs for support, and then using the longitudinal bars to drive the crossbars to move. This dual support mode design significantly improves the clinical applicability of the device, enabling patients with different muscle strength levels to obtain the best assistance effect. The combined use of plates and sleeves not only increases the comfort of the patient's contact surface, but also effectively disperses pressure and avoids discomfort caused by prolonged use.

[0020] 2. The control device employs a precise fit of components such as a connecting sleeve, mating sleeve, spring, and clamping plate to achieve convenient and reliable height adjustment. When height adjustment is required, rotating the mating sleeve drives the internal mechanism to disengage the clamping plate from the telescopic rod, allowing for free height adjustment. Once adjusted to the desired position, rotating the mating sleeve in the opposite direction relocks the device. The innovative feature of this device is its inclined sliding groove design, which allows the sliding block to automatically adjust its position during movement. Combined with the elastic reset function of the spring, this ensures that the contact pressure between the clamping plate and the telescopic rod is always at its optimal level. The anti-slip strip further enhances clamping stability. This design guarantees the flexibility of adjustment and enables personalized height adjustment.

[0021] 3. The reinforcement mechanism provides reliable stability for the entire adjustment system through a multi-locking mechanism consisting of components such as the moving plate, locking sleeve, and support rod. The precise cooperation between the locking wheel and the limiting block forms the first line of defense, the support rod's support for the locking sleeve constitutes the second line of defense, and the guide and limit of the slider in the groove forms the third line of protection. This multi-level protection design ensures rigid fixation at any height, avoiding loosening or displacement that may occur during use. It is particularly worth mentioning that while ensuring stability, the mechanism still allows for convenient height adjustment. The entire adjustment process can be completed with simple rotation and pushing / pulling, greatly improving the convenience of clinical use. The design of the entire reinforcement system fully considers ergonomic principles, making the operation process conform to natural movement habits and greatly reducing the difficulty of use for medical staff and patients. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a nursing auxiliary walking frame according to the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the control device and the reinforcing mechanism in this utility model;

[0024] Figure 3This is a cross-sectional structural diagram of the control device and the reinforcing mechanism in this utility model;

[0025] Figure 4 This is a schematic diagram of the dispersed structure of the control device and the reinforcement mechanism in this utility model;

[0026] Figure 5 This is a schematic diagram of the dispersed structure of the matching and sliding block parts in this utility model.

[0027] In the diagram: 1. Movable frame; 2. Fixed sleeve; 3. Connecting sleeve; 4. Mating sleeve; 5. Spring; 6. Clamping plate; 7. Sliding block; 8. Inner sleeve; 9. Adaptor; 10. Sliding groove; 11. Sliding plate; 12. Movable block; 13. Movable plate; 14. Fixed block; 15. Locking sleeve; 16. Restricting block; 17. Locking block; 18. Support rod; 19. Movable spring; 20. Locking spring; 21. Through hole; 2 2. Protective sleeve; 23. Protective plate; 24. Moving wheel; 25. Telescopic rod; 26. Longitudinal rod; 27. Cross rod; 28. Adapter plate; 29. ​​Adapter groove; 30. Mating groove; 31. Mating block; 32. Moving rod; 33. Moving hole; 34. Locking wheel; 35. Locking rail; 36. Locking groove; 37. Sliding groove; 38. Sliding block; 39. Support spring; 40. Sliding rod; 41. Sliding groove; 42. Anti-slip strip. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5A nursing assistive walking frame includes a movable frame 1 with an extension device. A fixed sleeve 2 is fixedly mounted on one side of the movable frame 1, and a control device is connected to the top of the fixed sleeve 2. The control device includes a connecting sleeve 3, a mating sleeve 4, a spring 5, a clamping plate 6, a sliding block 7, an inner sleeve 8, an adapter 9, a sliding groove 10, and a sliding plate 11. The connecting sleeve 3 is fixedly installed at one end of the fixed sleeve 2, and the mating sleeve 4 is rotatably installed on the outside of the connecting sleeve 3. The clamping plate 6 is movably connected to the sliding block 7 via the spring 5. The adapter 9 is disposed in the connecting sleeve 3. The sliding block 7 is fixedly connected to one side of the sliding plate 11. The outer wall of the inner sleeve 8 is movably connected to the inner wall of the mating sleeve 4 via threads. The sliding groove 10 is inclinedly opened in the connecting sleeve 3, and the sliding plate 11 is slidably disposed in the sliding groove 10. A reinforcing mechanism is installed on the outside of the connecting sleeve 3. The reinforcing mechanism includes a moving block 12, a moving plate 13, a fixed block 14, a locking sleeve 15, a limiting block 16, a locking block 17, a support rod 18, a moving spring 19, a locking spring 20, and a through hole 21. The moving block 12 is fixedly installed on one side of the moving plate 13. The moving plate 13 is rotatably installed on the outside of the connecting sleeve 3. The fixed block 14 is fixedly installed on the outside of the connecting sleeve 3. The locking sleeve 15 is located on the outside of the connecting sleeve 3. The limiting block 16 is fixedly installed on the outside of the connecting sleeve 3. The locking block 17 is movably located on one side of the mating sleeve 4. The support rod 18 is fixedly connected to one side of the locking sleeve 15. The two ends of the moving spring 19 are connected to the moving block 12 and the fixed block 14. The through hole 21 is opened on the moving plate 13. The two ends of the locking spring 20 are respectively connected to two adjacent locking blocks 17.

[0032] The extension device includes a protective sleeve 22, a protective plate 23, a movable wheel 24, a telescopic rod 25, a vertical rod 26, and a horizontal rod 27. The protective sleeve 22 is detachably installed on the outside of the vertical rod 26 and the outside of the horizontal rod 27. The protective plate 23 is fixedly installed above the vertical rod 26. The bottom end of the telescopic rod 25 slides into the fixed sleeve 2. The vertical rod 26 is fixedly connected to the horizontal rod 27. The horizontal rod 27 is fixedly connected to the top end of the telescopic rod 25. The movable wheel 24 is rotatably installed on the bottom end of the movable frame 1 and the fixed sleeve 2.

[0033] In this embodiment, when the device is needed, for patients with sufficient support, the patient can directly hold the sheath 22 at one end of the crossbar 27 and push the mobile frame 1 to move through the crossbar 27 to achieve the purpose of assisted walking. For patients with insufficient support, the patient can place their forearm on the guard plate 23 and then hold the sheath 22 at one end of the vertical bar 26 with both hands, so that the forearm and upper arm can work together to support the patient. Then, the vertical bar 26 drives the crossbar 27, and then drives the mobile frame 1 to move through the moving wheels 24 to achieve the purpose of assisted walking.

[0034] Please see Figures 2-5As a further implementation of the overall device: an adapter plate 28 is connected to one side of the sliding block 7, and an adapter groove 29 is opened in the adapter 9, and the adapter plate 28 slides in the adapter groove 29.

[0035] The side wall of the connecting sleeve 3 is provided with a mating groove 30, and a mating block 31 is slidably provided in the mating groove 30. The inner wall of the inner sleeve 8 is fixedly connected to the outer wall of the suitable sleeve 9 through the mating block 31.

[0036] A movable rod 32 is fixedly connected to one side of the movable block 12, and a movable hole 33 is opened in the fixed block 14. One end of the movable rod 32 is slidably inserted into the movable hole 33.

[0037] A locking wheel 34 is provided on one side of the locking block 17. The locking wheel 34 is locked between two limiting blocks 16. Multiple locking rails 35 are fixed on one side of the fitting sleeve 4. A locking groove 36 is opened in the locking block 17. The locking rail 35 is adapted to the locking groove 36.

[0038] A groove 37 is provided on the outer side of the connecting sleeve 3, and a slider 38 is fixedly provided on the inner side of the locking sleeve 15. The slider 38 slides in the groove 37. A support spring 39 is movably sleeved on the outer side of the support rod 18. One end of the support spring 39 is in contact with the moving plate 13.

[0039] A sliding rod 40 is fixedly provided on one side of the clamping plate 6, and a sliding groove 41 is provided in the sliding block 7. One end of the sliding rod 40 slides into the sliding groove 41, and multiple anti-slip strips 42 are fixedly provided on the inner side of the clamping plate 6.

[0040] More specifically, when the handle height needs to be adjusted according to usage requirements, i.e., the extension length of the telescopic rod 25 is adjusted, firstly, the moving plate 13 is rotated forward. Then, the moving plate 13 will drive the through hole 21 and the moving block 12 installed on one side to rotate forward. Then, the moving block 12 will drive the moving rod 32 set on one side to rotate forward along the moving hole 33 opened in the fixed block 14. The moving block 12 and the fixed block 14 will cooperate to compress the moving spring 19. When the moving spring 19 is compressed to the limit, the through hole 21 just rotates to a position concentric with the support rod 18. Then, the locking sleeve 15 is pushed. The locking sleeve 15 drives the slider 38 set on the inner side to slide along the slide groove 37. The locking sleeve 15 also drives the multiple support rods 18 set on one side to slide through. The device is inserted into the through hole 21. Then, the locking sleeve 15 no longer limits the outer side of the locking wheel 34. Then, the mating sleeve 4 rotates forward, and the mating sleeve 4 drives the locking rail 35 installed on one side to rotate forward. The locking rail 35, in conjunction with the locking groove 36, drives the locking block 17 to rotate. Then, the locking block 17 drives the locking wheel 34 to move outward between the two limiting blocks 16. The locking wheel 34 drives the locking block 17 to slide outward along the locking rail 35 and the locking groove 36. At the same time, the locking block 17 drives the locking spring 20 to stretch outward. Meanwhile, since the inner wall of the mating sleeve 4 is movably connected to the outer wall of the inner sleeve 8 through the thread, the inner sleeve 8 drives the mating block 31 to slide along the mating groove 30. Then, the mating block 31 drives the inner connected adapter 9 to slide. Then, the adapter 9 passes through... The sliding block 7 moves due to the interaction between the adapter groove 29 and the adapter plate 28. This causes the sliding block 7 to move the sliding plate 11 on one side along the inclined sliding groove 10. The sliding block 7, through the interaction of the sliding rod 40 and the sliding groove 41, moves the spring 5 and the clamping plate 6. The sliding plate 11 then causes the sliding block 7 to spread outwards, allowing the adapter plate 28 on one side to slide outwards along the adapter groove 29. The distance between the sliding block 7 and the clamping plate 6 gradually increases, causing the spring 5 to gradually return to its original position. The sliding rod 40 slides relative to the spring 5 in the sliding groove 41. When the spring 5 is fully returned to its original position, the sliding block 7, through the spring 5, moves the clamping plate 6 outwards, so that the inner wall of the clamping plate 6 no longer contacts the outer wall of the telescopic rod 25. Then, the sliding block moves up and down... The sliding telescopic rod 25 causes the top-mounted crossbar 27 and the vertical rod 26 mounted on one side of the crossbar 27 to slide, thereby adjusting the handle height. After the height is adjusted appropriately, the mating sleeve 4 is rotated in the opposite direction. This causes the mating sleeve 4 to rotate the locking block 17 in the opposite direction through the locking rail 35 and locking groove 36 on one side, so that it rotates back between the two original limiting blocks 16. Then, the locking spring 20 resets and pulls the locking block 17 to slide inward along the locking rail 35 and locking groove 36, so that the locking block 17 drives the locking wheel 34 to re-engage between the two original limiting blocks 16. Then, the locking sleeve 15 is released, and the support spring 39 pushes the locking sleeve 15 to slide back to its original position. Then, the locking sleeve 15 drives the slider 38 to slide back to its original position along the sliding groove 37.Then, the locking sleeve 15 will drive the support rod 18 to slide and reset. After the support spring 39 is fully reset, the support rod 18 will no longer limit the moving plate 13 through the through hole 21. Then, the moving spring 19 will push the moving block 12 to rotate and reset. Then, the moving block 12 will drive the moving rod 32 to rotate and reset along the moving hole 33. The moving block 12 will also drive the moving hole 33 to rotate and reset to a position that does not correspond to the support rod 18 through the moving plate 13. Then, the support rod 18 will limit and support the locking sleeve 15 to one side of the moving plate 13. With the slider 38 and the slide groove 37 limiting the locking sleeve 15, the locking sleeve 15 cannot slide. Then, the inner wall of the locking sleeve 15 limits the outer wall of the locking wheel 34, so that the locking wheel 34 and the locking block 17 cannot move outward. This achieves the rotation limit of the mating sleeve 4, thereby ensuring the stability of the clamping device, ensuring the structural stability of the equipment after height adjustment, and ensuring stable use.

[0041] In summary, when using or operating the device: When the device is needed, for patients with sufficient support, the patient can directly hold the sleeve 22 at one end of the crossbar 27 and push the moving frame 1 through the crossbar 27 to achieve the purpose of assisted walking. For patients with insufficient support, the patient can place their forearm on the guard plate 23 and then hold the sleeve 22 at one end of the vertical bar 26 with both hands, so that the forearm and upper arm can work together to support the patient. Then, the vertical bar 26 drives the crossbar 27, which in turn drives the moving frame 1 to move through the moving wheels 24 to achieve the purpose of assisted walking.

[0042] When the handle height needs to be adjusted according to usage requirements, i.e., the extension length of the telescopic rod 25 is adjusted, firstly, the movable plate 13 is rotated clockwise. Then, the movable plate 13 will drive the through hole 21 and the movable block 12 installed on one side to rotate clockwise. Then, the movable block 12 will drive the movable rod 32 set on one side to rotate clockwise along the movable hole 33 opened in the fixed block 14. The movable block 12 and the fixed block 14 will cooperate to compress the movable spring 19. When the movable spring 19 is compressed to its limit, the through hole 21 just rotates to a position concentric with the support rod 18. Then, the locking sleeve 15 is pushed. The locking sleeve 15 drives the slider 38 set on the inner side to slide along the slide groove 37. The locking sleeve 15 also drives the multiple support rods 18 set on one side to slide into the through hole. In step 21, the locking sleeve 15 no longer limits the outer side of the locking wheel 34, and then the mating sleeve 4 rotates forward. The mating sleeve 4 drives the locking rail 35 installed on one side to rotate forward, and the locking rail 35, in conjunction with the locking groove 36, drives the locking block 17 to rotate. Then the locking block 17 drives the locking wheel 34 to move out from between the two limiting blocks 16, and the locking wheel 34 drives the locking block 17 to slide outward along the locking rail 35 and the locking groove 36. At the same time, the locking block 17 will drive the locking spring 20 to stretch outward. Meanwhile, since the inner wall of the mating sleeve 4 is movably connected to the outer wall of the inner sleeve 8 through threads, the inner sleeve 8 drives the mating block 31 to slide along the mating groove 30. Then the mating block 31 drives the inner connected adapter 9 to slide. Then the adapter 9 passes through the... The engagement of the groove 29 and the adapter plate 28 causes the sliding block 7 to move, which in turn causes the sliding plate 11 on one side to slide along the inclined sliding groove 10. The sliding block 7, through the cooperation of the sliding rod 40 and the sliding groove 41, causes the spring 5 and the clamping plate 6 to move. Then, the sliding plate 11 causes the sliding block 7 to spread outwards, causing the adapter plate 28 on one side to slide outwards along the adapter groove 29. The distance between the sliding block 7 and the clamping plate 6 gradually increases, causing the spring 5 to gradually return to its original position. The sliding rod 40 slides relative to the spring 5 in the sliding groove 41. When the spring 5 has fully returned to its original position, the sliding block 7, through the spring 5, causes the clamping plate 6 to move outwards, so that the inner wall of the clamping plate 6 no longer contacts the outer wall of the telescopic rod 25, and then it slides up and down. The telescopic rod 25 is moved, causing the top horizontal bar 27 and the vertical bar 26 mounted on one side of the horizontal bar 27 to slide, thereby adjusting the handle height. After the height is adjusted appropriately, the mating sleeve 4 is rotated in the opposite direction, causing the mating sleeve 4 to rotate in the opposite direction through the locking rail 35 and locking groove 36 on one side, driving the locking block 17 to rotate between the two original limiting blocks 16. Then, the locking spring 20 resets and pulls the locking block 17 to slide inward along the locking rail 35 and locking groove 36, causing the locking block 17 to drive the locking wheel 34 to re-lock between the two original limiting blocks 16. Then, the locking sleeve 15 is released, and the support spring 39 pushes the locking sleeve 15 to slide back to its original position. Then, the locking sleeve 15 drives the slider 38 to slide back to its original position along the slide groove 37.Then, the locking sleeve 15 will drive the support rod 18 to slide and reset. After the support spring 39 is fully reset, the support rod 18 will no longer limit the moving plate 13 through the through hole 21. Then, the moving spring 19 will push the moving block 12 to rotate and reset. Then, the moving block 12 will drive the moving rod 32 to rotate and reset along the moving hole 33. The moving block 12 will also drive the moving hole 33 to rotate and reset to a position that does not correspond to the support rod 18 through the moving plate 13. Then, the support rod 18 will limit and support the locking sleeve 15 to one side of the moving plate 13. With the slider 38 and the slide groove 37 limiting the locking sleeve 15, the locking sleeve 15 cannot slide. Then, the inner wall of the locking sleeve 15 limits the outer wall of the locking wheel 34, so that the locking wheel 34 and the locking block 17 cannot move outward. This achieves the rotation limit of the mating sleeve 4, thereby ensuring the stability of the clamping device, ensuring the structural stability of the equipment after height adjustment, and ensuring stable use.

[0043] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A nursing assistive walking frame, comprising a movable frame (1), characterized in that: An extension device is provided on the movable frame (1). A fixed sleeve (2) is provided on one side of the movable frame (1). A control device is connected to the top of the fixed sleeve (2). The control device includes a connecting sleeve (3), a mating sleeve (4), a spring (5), a clamping plate (6), a sliding block (7), an inner sleeve (8), a fitting sleeve (9), a sliding groove (10), and a sliding plate (11). The clamping plate (6) is connected to the sliding block (7) through the spring (5). The sliding block (7) is connected to one side of the sliding plate (11). The outer wall of the inner sleeve (8) is connected to the inner wall of the mating sleeve (4) through threads. The sliding groove (10) is inclinedly opened in the connecting sleeve (3). A reinforcing mechanism is installed on the outside of the connecting sleeve (3). The reinforcing mechanism includes a moving block (12), a moving plate (13), a fixing block (14), a locking sleeve (15), a limiting block (16), a locking block (17), a support rod (18), a moving spring (19), a locking spring (20), and a through hole (21). The limiting block (16) is installed on the outside of the connecting sleeve (3). The support rod (18) is connected to one side of the locking sleeve (15). The moving spring (19) is connected to the moving block (12) and the fixing block (14). The through hole (21) is opened on the moving plate (13). The locking spring (20) is connected to two adjacent locking blocks (17).

2. The nursing assistive walking frame according to claim 1, characterized in that: The extension device includes a protective sleeve (22), a protective plate (23), a movable wheel (24), a telescopic rod (25), a vertical rod (26), and a horizontal rod (27). The protective sleeve (22) is detachably installed on the outside of the vertical rod (26) and the outside of the horizontal rod (27). The protective plate (23) is fixedly installed above the vertical rod (26). The bottom end of the telescopic rod (25) slides into the fixed sleeve (2). The vertical rod (26) is fixedly connected to the horizontal rod (27). The horizontal rod (27) is fixedly connected to the top end of the telescopic rod (25). The movable wheel (24) is rotatably installed on the bottom end of the movable frame (1) and the fixed sleeve (2).

3. A nursing assistive walking frame according to any one of claims 1 or 2, characterized in that: The sliding block (7) is connected to an adapter plate (28) on one side, and the adapter plate (9) is provided with an adapter groove (29). The adapter plate (28) slides in the adapter groove (29).

4. The nursing assistive walking frame according to claim 3, characterized in that: The connecting sleeve (3) has a mating groove (30) on its side wall, and a mating block (31) is slidably provided in the mating groove (30). The inner wall of the inner sleeve (8) is fixedly connected to the outer wall of the matching sleeve (9) through the mating block (31).

5. The nursing assistive walking frame according to claim 1, characterized in that: A moving rod (32) is fixedly connected to one side of the moving block (12), and a moving hole (33) is opened in the fixed block (14). One end of the moving rod (32) slides into the moving hole (33).

6. The nursing assistive walking frame according to claim 5, characterized in that: The locking block (17) has a locking wheel (34) on one side that rotates and engages between two limiting blocks (16). The fitting sleeve (4) has multiple locking rails (35) fixed on one side. The locking block (17) has a locking groove (36) and the locking rails (35) are adapted to the locking grooves (36).

7. A nursing assistive walking frame according to claim 6, characterized in that: The connecting sleeve (3) has a groove (37) on its outer side, and the locking sleeve (15) has a slider (38) fixedly installed on its inner side. The slider (38) slides in the groove (37). The support rod (18) has a support spring (39) movably sleeved on its outer side. One end of the support spring (39) is in contact with the moving plate (13).

8. The nursing assistive walking frame according to claim 7, characterized in that: A sliding rod (40) is fixedly provided on one side of the clamping plate (6), and a sliding groove (41) is provided in the sliding block (7). One end of the sliding rod (40) slides into the sliding groove (41), and multiple anti-slip strips (42) are fixedly provided on the inner side of the clamping plate (6).

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