Rollator

Abstract

The utility model relates to a rollator and belongs to the technical field of rollators. The rollator comprises two frames which are symmetrically arranged, and adjusting connecting pieces are arranged at the upper ends of the frames; the backrest is arranged between the two frames, and the two ends of the backrest are rotationally connected with the frames through rotating shafts; the supporting arm assembly is arranged on the adjusting connecting piece in a penetrating mode, and the supporting arm assembly has a contraction state in which the supporting arm assembly penetrates through the adjusting connecting piece and an expansion state in which the supporting arm assembly clamps the adjusting connecting piece; and the armrest assembly is arranged on the supporting arm assembly. According to the rollator, the use direction of the backrest and the use direction of the supporting arm assembly can be adjusted according to actual requirements, and the use safety and portability of the rollator are improved.

Description

Technical Field

[0001] The present application relates to the technical field of rollators, and in particular to a rollator. Background Art

[0002] As a walking aid, a rollator can provide stable support to promote the user's ability to walk and move independently. When using a rollator for assisted walking, the human body's hands are supported on the arm assembly or armrests. The overall space formed by the rollator and the user is large, and the center of gravity is close to the human body, which has good stability and balance. However, in actual applications, when the rollator is used for rest or pushed by others, the center of gravity formed by the rollator and the user changes with the user's movements. When the user leans on the backrest, the center of gravity deviates from the frame body, and the rollator is prone to overturning. In addition, the handle of the rollator is located on the other side of the push cart, which makes it inconvenient to push. Utility Model Content

[0003] In order to overcome the problems existing in the related art, the rollator provided in the present application can adjust the use direction of the backrest and the arm assembly according to actual needs, thereby improving the safety and portability of the rollator.

[0004] The first aspect of the present application provides a walker, comprising:

[0005] Two symmetrically arranged vehicle frames, wherein the upper ends of the vehicle frames are provided with adjusting connecting pieces;

[0006] A backrest, arranged between the two frames, with both ends of the backrest being rotatably connected to the frames via a rotating shaft;

[0007] A support arm assembly is provided on the adjusting connecting piece, and the support arm assembly has a contracted state of passing through the adjusting connecting piece and an expanded state of clamping the adjusting connecting piece;

[0008] The handrail assembly is arranged on the supporting arm assembly.

[0009] In some embodiments, the armrest assembly includes an armrest tube arranged in a horizontal direction, one end of the armrest tube extends upward to form a hand-held push handle, and the armrest tube is sleeved on the support arm assembly;

[0010] The support arm assembly also includes a first quick-release lock, which is used to lock the handrail tube and adjust the distance between the handrail tube and the support arm assembly.

[0011] In some embodiments, a plurality of outer adjustment holes are equidistantly arranged on the outer circumference of the adjustment connection member;

[0012] The support arm assembly includes an elastic member; when the support arm assembly is in a contracted state, the free end of the elastic member can pass through the channel of the adjustment connecting member; when the support arm assembly is in an expanded state, the free end of the elastic member abuts against the outer adjustment hole or the end face of the adjustment connecting member.

[0013] In some embodiments, the support arm assembly further comprises a hand support seat and a hand support, the hand support seat is provided with a through hole along its length direction, the handrail tube is passed through the through hole, the hand support seat is provided with a connecting seat arranged around the through hole, and the connecting seat is provided with an axial hole;

[0014] The quick-release lock comprises a quick-release wrench, a pressing piece, and a connecting rod, one end of the connecting rod is movably connected to the quick-release wrench, the connecting rod passes through the pressing piece and the axial hole, and is connected to the connecting seat, and the quick-release wrench is used to push the pressing piece to force the connecting seat to press the handrail tube.

[0015] In some embodiments, the support arm assembly further comprises a sleeve, and an inner adjustment hole matching with the outer adjustment hole is arranged on the outer periphery of the sleeve;

[0016] The elastic member includes a spring clip hook, one end of which is fixed to the inner wall of the sleeve, and the other end is provided with a clip, which passes through the inner adjustment hole and is clipped with the end surface of the outer adjustment hole or the adjustment connector;

[0017] One end of the sleeve is connected to the bottom of the hand support seat.

[0018] In some embodiments, the elastic member includes: a rod body having a first end and a second end relative to each other, the first end being connected to the palm rest seat, the second end being provided with an open groove, the open groove extending toward the palm rest seat, a hook being provided on the side surface of the second end, the hook passing through the inner wall of the adjusting connecting piece, and being engaged with the external adjusting hole or the end face of the adjusting connecting piece.

[0019] In some embodiments, the frame further includes: a bracket body, an armrest frame and a shell cover, the bracket body is connected to the armrest frame, and the armrest frame is arranged in a horizontal direction, the shell cover has a chamber for accommodating the armrest frame, the shell cover is buckled on the armrest frame, a stop plate is arranged on one side surface of the shell cover facing the backrest, the plane of the stop plate is parallel to the armrest frame, the rotating shaft passes through the backrest, the shell cover and the armrest frame, and the rotating shaft is located above the end surface of the stop portion.

[0020] In some embodiments, the backrest includes a flexible backrest belt, a first plate and a second plate, the two ends of the flexible backrest belt are connected to the first plate, the end of the first plate away from the flexible backrest belt is connected to the second plate, the second plate is provided with a pivot hole, the pivot passes through the pivot hole and is threadedly connected to the armrest bracket, and the two side surfaces of the second plate along the vertical direction are parallel to the plane of the stop plate.

[0021] In some embodiments, a plurality of equidistantly distributed sawtooth grooves are provided on the top end surface of the shell cover.

[0022] In some embodiments, the rollator further comprises:

[0023] A folding assembly, disposed between the two frames, and used for folding and unfolding the frames;

[0024] A wheel assembly is detachably arranged at the bottom of the frame;

[0025] The brake mechanism is connected to the hand-held push handle, and the brake module of the brake mechanism is connected to the wheel assembly.

[0026] The technical solution provided by this application may have the following beneficial effects:

[0027] The present application provides a rollator. When the rollator is used for assisted walking, the backrest is rotated so that the backrest is away from the human body to avoid the backrest hindering the legs from moving forward. The direction of the disassembled support arm assembly can be reversed to adjust the relative position of the armrest assembly, so that the armrest assembly can be held after the arm is supported on the support arm assembly. When the user sits on the rollator to rest or is pushed by others, the backrest is rotated so that the leaning direction of the backrest is consistent with the pushing direction, thereby maintaining the balance of the center of gravity of the rollator and avoiding overturning caused by excessive center of gravity shift when leaning on the backrest. The support arm assembly is disassembled to adjust the position of the armrest assembly, so that the pusher can hold the armrest assembly when pushing. The rollator can quickly adjust the direction of the backrest and the support arm assembly, effectively improving the safety level of the rollator and meeting different usage requirements.

[0028] As used herein, the terms parallel and perpendicular are understood to include substantially parallel and substantially perpendicular relative configurations up to approximately plus or minus 15 degrees from perfectly parallel and perfectly perpendicular. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and other objects, features and advantages of the present application will become more apparent through a more detailed description of exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0030] Figure 1is a schematic diagram of the overall structure of a rollator shown in an embodiment of the present application;

[0031] Figure 2 is an exploded schematic diagram of a bracket arm assembly shown in an embodiment of the present application;

[0032] Figure 3 is a schematic structural diagram of a quick-release lock shown in an embodiment of the present application;

[0033] Figure 4 is another structural schematic diagram of the elastic member shown in the embodiment of the present application;

[0034] Figure 5 This application example shows Figure 1 Schematic diagram of the enlarged structure of position A. Description of the drawings:

[0036] 1. frame; 11. adjustment connector; 110. external adjustment hole; 12. bracket body; 13. handrail bracket; 14. shell cover; 130. stop plate; 131. serrated groove;

[0037] 2. backrest; 21. rotating shaft; 22. flexible backrest belt; 23. rotating seat; 230. first plate body; 231. second plate body;

[0038] 3. Support arm assembly; 31. Quick release lock; 310. Quick release wrench; 311. Pressing piece; 312. Connecting rod; 32. Elastic piece; 320. Spring clip buckle; 322. Rod body; 323. Hook; 324. Opening slot; 33. Hand support seat; 34. Hand support; 35. Connecting seat; 36. Sleeve; 360. Inner adjustment hole;

[0039] 4. Handrail assembly; 41. Handrail tube; 42. Hand grip handle;

[0040] 5. Folding components;

[0041] 6. Wheel assembly;

[0042] 7. Braking mechanism. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0044] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0045] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In actual applications, when a rollator is used for rest or pushed by others, the center of gravity formed by the rollator and the user will change with the user's movements. When the user leans on the backrest, the center of gravity shifts and the rollator is prone to overturning. At the same time, the armrest assembly is located on the other side of the pusher, which makes pushing the rollator inconvenient.

[0047] In view of the above problems, an embodiment of the present application provides a rollator, which can adjust the use direction of the backrest 2 and the arm assembly 3 according to actual needs, thereby improving the safety and portability of the rollator.

[0048] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0049] Figure 1 This is a schematic diagram of the overall structure of a rollator provided in an embodiment of the present application.

[0050] like Figure 1 As shown, the rollator comprises: two symmetrically arranged frames 1, the upper ends of the frames 1 are provided with adjustment connectors 11;

[0051] A backrest 2 is disposed between the two vehicle frames 1, and both ends of the backrest 2 are rotatably connected to the vehicle frames 1 via a rotating shaft 21;

[0052] The support arm assembly 3 is passed through the adjusting connecting member 11, and the support arm assembly 3 has a contracted state passing through the adjusting connecting member 11 and an expanded state clamping the adjusting connecting member 11;

[0053] The handrail assembly 4 is arranged on the support arm assembly 3 .

[0054] In the prior art, the front wheel of the rollator is directly arranged under the frame, and the rear wheel extends out of the frame through a bracket. The distance between the rear wheel and the frame is relatively far, which can prevent the user's legs from hitting the rollator when the user is walking with assistance. The seat of the rollator is generally arranged in the middle area of ​​the frame. When the rear wheel extends out of the frame, the center of gravity of the rollator is not in the middle area of ​​the seat, but on the side of the seat close to the rear wheel. Therefore, when the user sits on the rollator and leans on the backrest, the center of gravity of the human body shifts to the side of the front wheel, which eventually causes the rollator to overturn and cause danger.

[0055] When the rollator is used for assisted walking, the backrest 2 is rotated so that the backrest 2 rotates around the axis of the rotating shaft 21, thereby realizing the reversal of the backrest 2. The support arm assembly 3 is disassembled so that the armrest assembly 4 and the backrest 2 are on the same side of the frame 1 and opposite to the user. Under this setting, the user holds the armrest assembly 4 while supporting his hand on the support arm assembly 3. The backrest 2 is away from the human body and does not hinder the movement of the user's legs. When it is necessary to sit down to rest or push the vehicle, the backrest 2 is rotated so that the backrest 2 rotates around the axis of the rotating shaft 21, thereby realizing the reversal of the backrest 2. The support arm assembly 3 is disassembled so that the armrest assembly 4 and the backrest 2 are close to the side of the rear wheel, which plays a role in adjusting the center of gravity of the rollator to avoid overturning, which can effectively improve the safety of the rollator and make it convenient for the pusher to hold the armrest assembly.

[0056] When in use, the support arm assembly 3 is pulled out from the adjusting connector 11 through the contracted state of the support arm assembly 3, the support arm assembly is rotated 180°, and the position of the armrest assembly 4 is changed to the other side, the support arm assembly 3 is inserted into the adjusting connector 11, and the support arm assembly 3 is clamped on the end face of the adjusting connector 11 through the expanded state of the support arm assembly 3 to achieve fixation.

[0057] Figure 2 It is a schematic exploded view of the support arm assembly 3 shown in the embodiment of the present application.

[0058] like Figure 2 The walker in the embodiment of the present application may further include an armrest assembly 4, wherein the armrest assembly 4 includes an armrest tube 41 arranged in a horizontal direction, one end of the armrest tube 41 extends upward to form a hand-grip push handle 42, and the armrest tube 41 is sleeved on the support arm assembly 3;

[0059] The support arm assembly 3 further includes a first quick-release lock 31, which is used to lock the handrail tube 41 and adjust the distance between the handrail tube 41 and the support arm assembly 3. The handrail tube 41 is quickly disassembled through the first quick-release lock 31 and inserted into the other end of the support arm assembly 3, thereby adjusting the direction of the hand-held push handle 42. Without disassembling the support arm assembly 3, the handrail tube 41 can also be changed in direction to meet the pushing requirements.

[0060] In this embodiment, a plurality of outer adjustment holes 110 are equidistantly arranged on the outer circumference of the adjustment connecting member 11;

[0061] The support arm assembly 3 includes an elastic member 32; when the support arm assembly 3 is in a contracted state, the free end of the elastic member 32 can pass through the channel of the adjustment connecting member 11; when the support arm assembly 3 is in an expanded state, the free end of the elastic member 32 abuts against the outer adjustment hole 110 or the end face of the adjustment connecting member 11.

[0062] Specifically, the adjustment connecting member 11 can be a cylindrical shell, an elliptical shell and a special-shaped shell. In this embodiment, the support arm assembly 3 can be inserted into the adjustment connecting member 11 and the position of the support arm assembly 3 can be fixed to realize the reversal of the present application. When the free end of the elastic member 32 is clamped in the external adjustment hole 110, the height of the support arm assembly 3 can be adjusted to meet the usage needs of people of different heights.

[0063] In this embodiment, the support arm assembly 3 further includes a hand support seat 33 and a hand support 34. The hand support seat 33 is provided with a through hole along its length direction. The handrail tube 41 is inserted into the through hole. The hand support seat 33 is provided with a connecting seat 35 arranged around the through hole. The connecting seat 35 is provided with an axial hole.

[0064] The quick release lock 31 includes a quick release wrench 310, a pressing piece 311, and a connecting rod 312. One end of the connecting rod 312 is movably connected to the quick release wrench 310. The connecting rod 312 passes through the pressing piece 311 and the shaft hole and is connected to the connecting seat 35. The quick release wrench 310 is used to push the pressing piece 311 to force the connecting seat 35 to press the handrail tube 41. The handrail tube 41 is inserted into the through hole of the hand support seat 33, and the handrail tube 41 is tightened and loosened by toggling the quick release wrench 310. The direction of the handrail tube 41 can be adjusted by inserting the handrail tube 41 into the other end of the through hole.

[0065] Figure 3 It is a schematic structural diagram of a quick-release lock 31 shown in an embodiment of the present application.

[0066] like Figure 3As shown, the support arm assembly 3 in the embodiment of the present application further includes a sleeve 36, and the outer periphery of the sleeve 36 is provided with an inner adjustment hole 360 ​​that matches the outer adjustment hole 110;

[0067] The elastic member 32 includes a spring clip buckle 320, one end of which is fixed to the inner wall of the sleeve 36, and the other end is provided with a clip, which passes through the inner adjustment hole 360 ​​and is clamped with the end surface of the outer adjustment hole 110 or the adjustment connector 11;

[0068] One end of the sleeve 36 is connected to the bottom of the hand support seat 33. The clip of the hook 323 of the spring clip buckle 320 is exposed in the inner adjustment hole 360. When the inner adjustment hole 360 ​​and the outer adjustment hole 110 are opposite to each other, the sleeve 36 can be clamped to fix the support arm on the adjustment connector 11. When the height of the support arm assembly 3 needs to be adjusted, the clip is pressed to put the support arm assembly 3 in a retracted state, and the sleeve 36 can be freely inserted into the sleeve 36.

[0069] Figure 4 Another schematic diagram of the structure of the elastic member 32 shown in the embodiment of the present application.

[0070] like Figure 4 As shown, the elastic member 32 in the embodiment of the present application includes: a rod body 322, having a first end and a second end opposite to each other, the first end being connected to the hand rest seat 33, the second end being provided with an opening slot 324, the opening slot 324 extending toward the hand rest seat 33, and a hook 323 being provided on the side surface of the second end, the hook 323 passing through the inner wall of the adjustment connecting member 11 and being engaged with the outer adjustment hole 110 or the end surface of the adjustment connecting member 11. The material of the rod body 322 can be plastic, and the rod body 322 can be integrally formed with the hand rest seat 33.

[0071] Figure 5 The embodiment of the present application shows Figure 1 A schematic diagram of the enlarged structure of the A position

[0072] In the embodiment of the present application, the frame 1 may include: a bracket body 12, an armrest bracket and a shell cover 14, the bracket body 12 is connected to the armrest bracket 13, and the armrest bracket 13 is arranged in the horizontal direction, the shell cover 14 has a chamber for accommodating the armrest bracket 13, the shell cover 14 is buckled on the armrest bracket 13, and a stop plate 130 is arranged on the side surface of the shell cover 14 facing the backrest 2, the plane of the stop plate 130 is parallel to the armrest bracket 13, the rotating shaft 21 passes through the backrest 2, the shell cover 14 and the armrest bracket 13, and the rotating shaft 21 is located above the end surface of the stop portion.

[0073] In an embodiment of the present application, the backrest 2 may include a flexible backrest belt 22, a first plate body 230 and a second plate body 231, the two ends of the flexible backrest belt 22 are connected to the first plate body 230, the end of the first plate body 230 away from the flexible backrest belt 22 is connected to the second plate body 231, a rotating shaft 21 hole is provided on the second plate body 231, the rotating shaft 21 passes through the rotating shaft 21 hole and is threadedly connected to the armrest bracket 13, and the two side surfaces of the second plate body 231 along the vertical direction are parallel to the plane of the stop plate 130.

[0074] The plane of the stop plate 130 is a horizontal plane. When the end surface of the second plate body 231 abuts against the stop plate 130, the rotation direction of the backrest 2 can be restricted, so that the leaning surface of the backrest 2 and the seat cushion are kept perpendicular to each other, thereby improving the fit of the backrest 2 to the waist.

[0075] In the embodiment of the present application, a plurality of equidistantly distributed sawtooth grooves 131 are provided on the top end surface of the shell cover 14. The sawtooth grooves 131 can increase the friction force on the user's hand and prevent the user's hand from slipping.

[0076] The material of the shell cover 14 can be metal, plastic or the like. More preferably, acrylic, polycarbonate, polypropylene or the like with high strength and excellent aging resistance are selected. The shell cover 14 made of plastic has low thermal conductivity, which can reduce irritation to the user in cold weather and avoid stress response during use. Preferably, the serrated groove 131 arranged on the top end face of the shell cover 14 can be made of silicone, cloth or the like with good biocompatibility with the human body.

[0077] See also Figure 1 In the embodiment of the present application, the rollator may include:

[0078] A folding assembly 5 is disposed between the two vehicle frames 1, and the folding assembly 5 is used for folding and unfolding the vehicle frames 1;

[0079] A wheel assembly 6 is detachably disposed at the bottom of the frame 1;

[0080] The brake mechanism 7 is connected to the hand-held push handle 42 , and the brake module of the brake mechanism 7 is connected to the wheel assembly 6 .

[0081] It should be specially noted that the folding assembly 5, wheel assembly 6 and brake mechanism 7 in the present application are applications of the prior art. When the walker needs to be placed or carried for travel, the frame 1 can be folded or disassembled through the folding assembly 5 to reduce the packaging volume.

[0082] Compared with the prior art, the rollator provided in the embodiment of the present application can quickly adjust the use direction of the backrest 2 and the arm assembly 3 according to different needs when in use, so as to maintain the balance of the rollator and prevent the rollator from overturning.

[0083] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A rollator, characterized in that: include: Two symmetrically arranged vehicle frames, wherein the upper ends of the vehicle frames are provided with adjusting connecting pieces; A backrest, arranged between the two frames, with both ends of the backrest being rotatably connected to the frames via a rotating shaft; A support arm assembly is provided on the adjusting connecting piece, and the support arm assembly has a contracted state of passing through the adjusting connecting piece and an expanded state of clamping the adjusting connecting piece; The handrail assembly is arranged on the supporting arm assembly.

2. The rollator according to claim 1, characterized in that: The handrail assembly comprises a handrail tube arranged in a horizontal direction, one end of the handrail tube extends upward to form a hand-grip push handle, and the handrail tube is sleeved on the support arm assembly; The support arm assembly also includes a quick-release lock, which is used to lock the handrail tube and adjust the distance between the handrail tube and the support arm assembly.

3. The rollator according to claim 2, characterized in that: The outer circumference of the adjusting connecting piece is provided with a plurality of outer adjusting holes at equal intervals; The support arm assembly includes an elastic member; when the support arm assembly is in a contracted state, the free end of the elastic member can pass through the channel of the adjustment connecting member; when the support arm assembly is in an expanded state, the free end of the elastic member abuts against the outer adjustment hole or the end face of the adjustment connecting member.

4. The rollator according to claim 3, characterized in that: The support arm assembly further comprises a hand support seat and a hand support, wherein the hand support seat is provided with a through hole along its length direction, the handrail tube is passed through the through hole, the hand support seat is provided with a connecting seat arranged around the through hole, and the connecting seat is provided with an axial hole; The quick-release lock comprises a quick-release wrench, a pressing piece, and a connecting rod, one end of the connecting rod is movably connected to the quick-release wrench, the connecting rod passes through the pressing piece and the axial hole, and is connected to the connecting seat, and the quick-release wrench is used to push the pressing piece to force the connecting seat to press the handrail tube.

5. The rollator according to claim 4, characterized in that: The support arm assembly also includes a sleeve, and the outer periphery of the sleeve is provided with an inner adjustment hole that matches the outer adjustment hole; The elastic member includes a spring clip buckle, one end of which is fixed to the inner wall of the sleeve, and the other end is provided with a clip, which passes through the inner adjustment hole and is clipped with the end surface of the outer adjustment hole or the adjustment connector; One end of the sleeve is connected to the bottom of the hand support seat.

6. The rollator according to claim 4, characterized in that: The elastic member includes: a rod body having a first end and a second end opposite to each other, the first end being connected to the hand rest seat, the second end being provided with an open groove, the open groove extending toward the hand rest seat, a hook being provided on the side surface of the second end, the hook passing through the inner wall of the adjusting connecting piece, and being engaged with the outer adjusting hole or the end face of the adjusting connecting piece.

7. The rollator according to claim 1, characterized in that: The frame also includes: a bracket body, an armrest bracket and a shell cover, the bracket body is connected to the armrest bracket, and the armrest bracket is arranged in a horizontal direction, the shell cover has a chamber for accommodating the armrest bracket, the shell cover is buckled on the armrest bracket, a stop plate is arranged on one side of the shell cover facing the backrest, the plane of the stop plate is parallel to the armrest bracket, the rotating shaft passes through the backrest, the shell cover and the armrest bracket, and the rotating shaft is located above the end surface of the stop plate.

8. The rollator according to claim 7, characterized in that: The backrest includes a flexible backrest belt, a first plate body and a second plate body, the two ends of the flexible backrest belt are connected to the first plate body, the end of the first plate body away from the flexible backrest belt is connected to the second plate body, the second plate body is provided with a shaft hole, the shaft passes through the shaft hole and is threadedly connected to the armrest bracket, and the two side surfaces of the second plate body in the vertical direction are parallel to the plane of the stop plate.

9. The rollator according to claim 8, characterized in that: A plurality of equidistantly distributed sawtooth grooves are arranged on the top end surface of the shell cover.

10. The rollator according to any one of claims 2 to 6, characterized in that: The rollator also includes: A folding assembly, disposed between the two frames, and used for folding and unfolding the frames; A wheel assembly is detachably arranged at the bottom of the frame; The brake mechanism is connected to the hand-held push handle, and the brake module of the brake mechanism is connected to the wheel assembly.

Images