Smart bed and lumbar lifting mechanism

Abstract

This utility model belongs to the field of furniture technology and discloses a smart bed and a lumbar support mechanism. The smart bed includes: a bed frame; a back panel; a lumbar support panel; the lumbar support panel is hinged to the back panel; a back support assembly for supporting the back panel; the back support assembly is connected to the bed frame, and the back panel is disposed on the back support assembly; a lumbar support lifting assembly for supporting the lumbar support panel; the lumbar support lifting assembly is connected to the back support assembly, and the lumbar support panel is disposed on the lumbar support lifting assembly; a back drive assembly for driving the back panel to rotate relative to the bed frame; the back drive assembly is connected to both the bed frame and the back support assembly; and the lumbar drive assembly for driving the lumbar support panel to rotate relative to the back panel; the lumbar drive assembly is connected to both the back support assembly and the lumbar support lifting assembly. The smart bed provided by this utility model can lift and elevate the user's lumbar region, relieving abdominal pressure, improving comfort, and enhancing the user experience.

Description

Technical Field

[0001] This utility model relates to the field of furniture technology, and in particular to an intelligent bed and a lumbar support mechanism. Background Technology

[0002] The backrest of existing smart beds can be raised electrically. As the backrest is raised by the lifting structure, the angle between the backrest and the buttocks board decreases. Especially when the backrest is raised to the maximum angle, the abdomen will be subjected to certain pressure. This is especially true for obese people, who will experience abdominal pressure and discomfort, affecting the user's comfort.

[0003] Therefore, there is an urgent need for a smart bed and a lumbar support mechanism to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent bed and a lumbar support mechanism that can lift and elevate the user's waist, relieve abdominal pressure, improve comfort, and enhance the user experience.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Firstly, a smart bed is provided, comprising:

[0007] bedstead;

[0008] Backplate, used to at least partially support the back;

[0009] A waist plate for at least partial support of the waist; the waist plate is hinged to the back plate;

[0010] A back support assembly for supporting the back panel; the back support assembly is connected to the bed frame, and the back panel is disposed on the back support assembly;

[0011] A waist lifting assembly is used to support the waist plate; the waist lifting assembly is connected to the back support assembly, and the waist plate is disposed on the waist lifting assembly;

[0012] A back drive assembly for driving the back panel to rotate relative to the bed frame; the back drive assembly is connected to both the bed frame and the back support assembly.

[0013] A waist drive assembly is used to drive the waist plate to rotate relative to the back plate; the waist drive assembly is connected to the back support assembly and the waist lifting assembly respectively.

[0014] As a preferred technical solution, the lumbar support assembly includes: a mounting frame, a pushing member, and a support wheel, wherein the mounting frame is disposed on the bottom surface of the back panel facing the bed frame, the mounting frame is connected to the back support assembly, the first end of the pushing member is connected to the lumbar drive assembly, the support wheel is disposed on the second end of the pushing member, the support wheel rolls to support the lumbar panel, and the pushing member is hinged to the mounting frame.

[0015] As a preferred technical solution, the waist lifting assembly further includes a connecting rod, the two ends of which are respectively connected to two opposing pushing members, and the connecting rod is hinged to the waist drive assembly.

[0016] As a preferred technical solution, the waist lifting assembly further includes a reinforcing rod, the two ends of which are respectively connected to two opposing pushing members.

[0017] As a preferred technical solution, the waist lifting assembly further includes a connector, which is connected to the mounting frame and hinged to the pushing member.

[0018] As a preferred technical solution, the connector is provided with a connection notch and a connection hole, the surface of the connection notch extends to form a connection portion, the connection portion is connected to the mounting bracket, and the connection hole is hinged to the push member.

[0019] As a preferred technical solution, the pusher extends along an arc-shaped path, and extends away from the back plate near the mounting bracket and bends to form a clearance space for avoiding at least part of the back support assembly.

[0020] As a preferred technical solution, the waist lifting assembly further includes: a rolling support member, which extends along the length of the waist plate, and the support wheel presses against the rolling support member and can roll along the rolling support member to abut against the bottom surface of the waist plate facing the bed frame.

[0021] Secondly, a waist-lifting mechanism is also provided, comprising:

[0022] A waist plate for at least partial support of the waist; the waist plate is hinged to a back plate;

[0023] A waist lifting assembly is used to support the waist plate; the waist lifting assembly is connected to a back support assembly on the back plate, and the waist plate is disposed on the waist lifting assembly;

[0024] A waist drive assembly is used to drive the waist plate to rotate relative to the back plate; the waist drive assembly is connected to the back support assembly and the waist lifting assembly respectively;

[0025] The waist lifting assembly includes a mounting frame, a pushing member, and a support wheel. The mounting frame is disposed on the bottom surface of the back plate facing the ground and is connected to the back support assembly. The first end of the pushing member is connected to the waist drive assembly. The support wheel is disposed on the second end of the pushing member and rolls to support the waist plate. The pushing member is hinged to the mounting frame.

[0026] As a preferred technical solution, the waist lifting assembly further includes: a connecting rod, a reinforcing rod, and a connecting member. The two ends of the connecting rod are respectively connected to two opposing pushing members. The connecting rod is hinged to the waist driving assembly. The two ends of the reinforcing rod are respectively connected to two opposing pushing members. The connecting member is connected to the mounting frame and is hinged to the pushing members.

[0027] The beneficial effects of this utility model are:

[0028] The smart bed provided by this utility model has a lumbar support plate on the side of the back panel near the foot of the bed. The lumbar support plate is rotatably connected to the back panel. When the back panel is driven to flip upward by the back drive assembly, the lumbar support assembly drives the lumbar support plate to flip upward through the lumbar lifting assembly, so that the lumbar support plate extends upward beyond the plane of the upper surface of the back panel. The flipped lumbar support plate lifts and elevates the user's waist, reducing the pressure on the user's abdomen caused by the reduced angle between the back panel and the hip panel, thus relieving abdominal pressure, improving comfort, and enhancing the user experience. Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of the intelligent bed provided by this utility model;

[0030] Figure 2 This is a partial structural schematic diagram of the smart bed provided by this utility model;

[0031] Figure 3 This is a partial structural side view of the smart bed provided by this utility model;

[0032] Figure 4 This is a partial structural schematic diagram of the waist lifting assembly provided by this utility model;

[0033] Figure 5 This is a schematic diagram of the connection structure of the connector provided by this utility model.

[0034] In the picture:

[0035] 10. Bed frame;

[0036] 21. Back panel; 211. Clearance hole; 22. Waist panel; 23. Hip panel;

[0037] 30. Waist lifting assembly; 1. Mounting bracket; 2. Pushing component; 3. Support wheel; 4. Connecting rod; 5. Reinforcing rod; 6. Connecting component; 61. Connecting hole; 62. Connecting part; 63. Body part; 631. Longitudinal plate; 632. Transverse plate; 64. Stress hole; 7. Rolling support component; 8. Hinge seat;

[0038] 40. Back support assembly; 41. Back support frame; 42. Sliding support; 43. Back abutment rod; 44. Back abutment wheel; 45. Force application link;

[0039] 51. Waist drive assembly; 52. Back drive assembly;

[0040] 100. Make way. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0044] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0045] This embodiment provides a smart bed, such as Figure 1 As shown, the smart bed includes a bed frame 10, a hip board 23, a back board 21, a lumbar board 22, a back support assembly 40, and a back drive assembly 52. ​​The back board 21 is used to at least partially support the back, the lumbar board 22 is connected to the back board 21 and is used to at least partially support the waist, the hip board 23 is located on the side of the lumbar board 22 near the foot of the bed, the back support assembly 40 is connected to the bed frame 10, the back board 21 is located on the back support assembly 40 and is used to support the back board 21, and the back drive assembly 52 is connected to both the bed frame 10 and the back support assembly 40 and is used to drive the back board 21 to rotate relative to the bed frame 10.

[0046] Furthermore, such as Figures 1-3 As shown, the lumbar support 22 is hinged to the backrest 21 near the foot of the bed via multiple hinge structures. The smart bed also includes a lumbar lifting assembly 30 and a lumbar drive assembly 51. The lumbar lifting assembly 30 is connected to the backrest support assembly 40, and the lumbar support 22 is mounted on the lumbar lifting assembly 30, which supports the lumbar support 22. The lumbar drive assembly 51 is connected to both the backrest support assembly 40 and the lumbar lifting assembly 30, and drives the lumbar support 22 to rotate relative to the backrest 21.

[0047] Specifically, the smart bed provided in this embodiment has a lumbar support 22 between the backrest 21 and the buttocks board 23. The lumbar support 22 is rotatably connected to the backrest 21. When the backrest drive assembly 52 drives the backrest 21 to flip upward, the angle between the backrest 21 and the buttocks board 23 near the foot of the bed decreases. At this time, the lumbar drive assembly 51 drives the lumbar support 22 to flip upward through the lumbar lifting assembly 30, so that the lumbar support 22 extends upward beyond the plane of the upper surface of the backrest 21. The flipped lumbar support 22 lifts and elevates the user's waist, reducing the pressure on the user's abdomen caused by the reduced angle between the backrest 21 and the buttocks board 23, thus relieving abdominal pressure, improving comfort, and enhancing the user experience.

[0048] For example, such as Figures 2-5As shown, the lumbar support assembly 30 includes a mounting frame 1, a pushing member 2, and a support wheel 3. The mounting frame 1 is located on the bottom surface of the backrest plate 21 facing the bed frame 10 and is connected to the backrest support assembly 40. The middle part of the pushing member 2 is hinged to the mounting frame 1, and the first end of the pushing member 2 is connected to the lumbar drive assembly 51. The support wheel 3 is located at the second end of the pushing member 2 and provides rolling support for the lumbar support plate 22. Specifically, the lumbar drive assembly 51 can drive the pushing member 2 to rotate around a horizontal axis. The second end of the pushing member 2 pushes the lumbar support plate 22 relative to the backrest plate 21 through the support wheel 3, while the support wheel 3 supports the lumbar support plate 22 to rotate.

[0049] For example, such as Figure 3 and Figure 4 As shown, the pusher 2 extends along an arc-shaped path and extends away from the back plate 21 near the mounting bracket 1 and bends to form a clearance space 100 for avoiding at least part of the back support assembly 40, so as to avoid interference between the pusher 2 and the back support assembly 40 when the back plate 21 or the waist plate 22 moves.

[0050] For example, such as Figures 2-5 As shown, there are two pushers 2 arranged opposite each other along the width direction of the smart bed. The waist lifting assembly 30 also includes a connecting rod 4. The two ends of the connecting rod 4 are respectively connected to the two pushers 2 arranged opposite each other. The connecting rod 4 is hinged to the waist drive assembly 51.

[0051] For example, such as Figures 2-5 As shown, the waist lifting assembly 30 also includes a reinforcing rod 5, with two opposing pushing members 2 connected to the two ends of the reinforcing rod 5 to improve the structural strength of the waist lifting assembly 30.

[0052] For example, such as Figure 3 and Figure 5 As shown, the waist lifting assembly 30 also includes a connector 6, which is connected to the mounting bracket 1 and hinged to the jacking member 2.

[0053] For example, such as Figure 5 As shown, the connector 6 has a connecting notch and a connecting hole 61. The surface of the connecting notch extends to form a connecting portion 62, which is connected to the mounting frame 1. The connecting hole 61 is hinged to the pusher 2. Specifically, the connector 6 also includes a body portion 63, which is angled with the connecting portion 62. The connecting hole 61 is located in the body portion 63. The body portion 63 and the connecting portion 62 press against two mutually perpendicular sides of the mounting frame 1. At least one of the body portion 63 and the connecting portion 62 is fixed to the mounting frame 1 by welding. The arrangement of the body portion 63 and the connecting portion 62 increases the area of ​​force transmission from the connector 6 to the mounting frame 1, increases the force-bearing area of ​​the mounting frame 1, enhances the connection strength between the pusher 2 and the mounting frame 1, and improves the load-bearing capacity of the waist plate 22 when it is flipped.

[0054] Furthermore, such as Figure 5 As shown, the main body 63 has an L-shaped structure. The main body 63 includes a longitudinal plate 631 and a transverse plate 632 that are connected to each other. The longitudinal plate 631 presses against the mounting frame 1. A connecting hole 61 is provided in the longitudinal plate 631. The transverse plate 632 is connected to the connecting part 62. The connecting part 62 and / or the longitudinal plate 631 are welded to the mounting frame 1.

[0055] For example, the connector 6 is integrally formed, and the connecting part 62 is formed by a bending process.

[0056] For example, such as Figure 5 As shown, stress holes 64 are provided between the longitudinal plate 631, the transverse plate 632 and the connecting part 62. On the one hand, it is convenient to bend to form the connecting part 62, and on the other hand, it is convenient to release the internal stress of the connecting part 6, reduce stress concentration and improve the structural strength of the connecting part 6.

[0057] For example, such as Figure 2 and Figure 3 As shown, the lumbar support assembly 30 also includes a rolling support 7, which extends along the length of the lumbar plate 22. The support wheel 3 presses against the rolling support 7 and can roll along the rolling support 7 to abut against the bottom surface of the lumbar plate 22 facing the bed frame 10. Specifically, the rolling support 7 can be a slide rail, a slide groove structure, or a long strip flat plate structure. The rolling support 7 is made of metal, and its bottom is locked to the bottom surface of the lumbar plate 22. This can prevent abnormal noise from the support wheel 3 when it rolls or cause the bottom surface of the lumbar plate 22 to dent. Sound-absorbing cotton or other noise-reducing materials can also be sandwiched between the rolling support 7 and the lumbar plate 22 to further improve the user experience.

[0058] For example, such as Figure 2 and Figure 4 As shown, the waist drive assembly 51 can adopt a linear drive structure such as an electric push rod or a hydraulic cylinder. The output end of the waist drive assembly 51 is rotatably connected to the push member 2 through the hinge seat 8. When the waist drive assembly 51 extends and retracts in a straight line, it can drive the push member 2 to rotate relative to the back plate 21, thereby causing the waist plate 22 to flip relative to the back plate 21.

[0059] For example, such as Figure 2 As shown, the back plate 21 is provided with a clearance hole 211, which is used to avoid the waist drive assembly 51 and improve the structural compactness.

[0060] For example, such as Figure 1As shown, the back support assembly 40 includes a back support frame 41, a sliding support member 42, a back abutment rod 43, and a back abutment wheel 44. The back support frame 41 and the sliding support member 42 are both disposed on the bottom surface of the back panel 21 facing the bed frame 10. The body of the lumbar drive assembly 51 is hinged to the back support frame 41. The mounting bracket 1 is connected to the back support frame 41. The back support frame 41 is hinged to the bed frame 10. Two back abutment rods 43 are arranged side by side at intervals along the width direction of the smart bed. The first end of the back abutment rod 43 is connected to the bed frame 10. The back abutment wheel 44 is disposed at the second end of the back abutment rod 43. The back abutment wheel 44 at least partially rolls to support the sliding support member 42.

[0061] For example, such as Figure 1 and Figure 2 As shown, the mounting bracket 1 is configured as a U-shaped frame, while the back support frame 41 is configured as an inverted U-shaped structure. The opening directions of the mounting bracket 1 and the back support frame 41 are opposite. The length and width dimensions of the mounting bracket 1 are smaller than those of the back support frame 41. The mounting bracket 1 is located inside the back support frame 41, and the two ends of the mounting bracket 1 are respectively connected to the back support frame 41 to improve the stability of the support and mounting structure.

[0062] For example, the sliding support 42 can be a slide rail, a slide groove structure, or a long strip flat plate structure. The sliding support 42 is made of metal material, and its bottom is locked to the bottom surface of the back plate 21. This can prevent abnormal noise from being generated when the back abutment wheel 44 rolls or cause the bottom surface of the back plate 21 to dent. Sound-absorbing cotton and other noise reduction materials can also be sandwiched between the sliding support 42 and the back plate 21 to further improve the user experience.

[0063] For example, the sliding support 42 and the back support frame 41 can be connected to each other or they can be independent and not connected to each other.

[0064] For example, such as Figure 1 As shown, the force-applying link 45 is connected to two opposing back abutment rods 43 on both sides. The output end of the back drive assembly 52 is connected to the force-applying link 45. The back drive assembly 52 can adopt a linear drive structure such as an electric push rod or a hydraulic cylinder. When the back drive assembly 52 extends and retracts in a straight line, it can drive the back abutment rods 43 to rotate relative to the bed frame 10, thereby causing the back plate 21 to flip relative to the bed frame 10.

[0065] like Figures 1-5As shown, this embodiment also provides a waist lifting mechanism, which includes a waist plate 22, a waist lifting assembly 30, and a waist driving assembly 51. The waist plate 22 is hinged to the back plate 21 and is used to at least partially support the waist. The waist lifting assembly 30 is connected to the back support assembly 40 on the back plate 21. The waist plate 22 is disposed on the waist lifting assembly 30, and the waist lifting assembly 30 is used to support the waist plate 22. The waist driving assembly 51 is connected to the back support assembly 40 and the waist lifting assembly 30 respectively and is used to drive the waist plate 22 to rotate relative to the back plate 21. Furthermore, the waist lifting assembly 30 includes a mounting frame 1, a pushing member 2, and a support wheel 3. The mounting frame 1 is disposed on the bottom surface of the back plate 21 facing the ground and is connected to the back support assembly 40. The pushing member 2 is hinged to the mounting frame 1. The first end of the pushing member 2 is connected to the waist drive assembly 51. The support wheel 3 is disposed on the second end of the pushing member 2 and provides rolling support for the waist plate 22.

[0066] Specifically, when the back panel 21 flips upward, the angle between the back panel 21 and the buttocks panel 23 decreases. At this time, the waist drive assembly 51 drives the waist panel 22 to flip upward through the waist lifting assembly 30, so that the waist panel 22 extends upward beyond the plane of the upper surface of the back panel 21. The flipped waist panel 22 lifts and elevates the user's waist, reducing the pressure on the user's abdomen caused by the reduced angle between the back panel 21 and the buttocks panel 23, and relieving the pressure on the user's abdomen.

[0067] For example, such as Figures 2-5 As shown, the waist lifting assembly 30 also includes a connecting rod 4, a reinforcing rod 5, and a connector 6. The two ends of the connecting rod 4 are respectively connected to two opposing pushing members 2. The connecting rod 4 is hinged to the waist drive assembly 51. The two ends of the reinforcing rod 5 are respectively connected to two opposing pushing members 2. The connector 6 is connected to the mounting bracket 1 and is hinged to the pushing members 2.

[0068] For example, the waist lifting mechanism provided in this embodiment can be applied to furniture such as sofas, beds, and chairs.

[0069] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A smart bed, characterized in that, include: Bed frame (10); Backplate (21) for at least partial support of the back; A lumbar support plate (22) is used to at least partially support the lumbar region; The waist plate (22) is hinged to the back plate (21); A back support assembly (40) is used to support the back panel (21); the back support assembly (40) is connected to the bed frame (10), and the back panel (21) is disposed on the back support assembly (40); A waist lifting assembly (30) is used to support the waist plate (22); the waist lifting assembly (30) is connected to the back support assembly (40), and the waist plate (22) is disposed on the waist lifting assembly (30); A back drive assembly (52) is used to drive the back panel (21) to rotate relative to the bed frame (10); the back drive assembly (52) is connected to the bed frame (10) and the back support assembly (40) respectively; A waist drive assembly (51) is used to drive the waist plate (22) to rotate relative to the back plate (21); the waist drive assembly (51) is connected to the back support assembly (40) and the waist lifting assembly (30) respectively; The lumbar lifting assembly (30) includes: a mounting frame (1), a pusher (2), and a support wheel (3). The mounting frame (1) is located on the bottom surface of the back panel (21) facing the bed frame (10). The mounting frame (1) is connected to the back support assembly (40). The first end of the pusher (2) is connected to the lumbar drive assembly (51). The support wheel (3) is located on the second end of the pusher (2). The support wheel (3) rolls to support the lumbar panel (22). The pusher (2) is hinged to the mounting frame (1).

2. The smart bed according to claim 1, characterized in that, The waist lifting assembly (30) further includes a connecting rod (4), the two ends of which are respectively connected to two opposing push members (2), and the connecting rod (4) is hinged to the waist drive assembly (51).

3. The smart bed according to claim 1, characterized in that, The waist lifting assembly (30) further includes a reinforcing rod (5), the two ends of which are respectively connected to two opposing pushing members (2).

4. The smart bed according to claim 1, characterized in that, The waist lifting assembly (30) further includes a connector (6), which is connected to the mounting bracket (1) and hinged to the pusher (2).

5. The smart bed according to claim 4, characterized in that, The connector (6) is provided with a connection notch and a connection hole (61). The surface of the connection notch extends to form a connection part (62). The connection part (62) is connected to the mounting bracket (1). The connection hole (61) is hinged to the pusher (2).

6. The smart bed according to claim 1, characterized in that, The pusher (2) extends along an arc path and extends away from the back plate (21) near the mounting bracket (1) and bends to form a clearance space (100) for avoiding at least part of the back support assembly (40).

7. The smart bed according to claim 1, characterized in that, The waist lifting assembly (30) further includes a rolling support (7), which extends along the length of the waist plate (22), and the support wheel (3) presses against the rolling support (7) and can roll along the rolling support (7) to abut against the bottom surface of the waist plate (22) facing the bed frame (10).

8. A waist lifting mechanism, characterized in that, include: A waist plate (22) is used to at least partially support the waist; the waist plate (22) is hinged to the back plate (21); A waist lifting assembly (30) is used to support the waist plate (22); the waist lifting assembly (30) is connected to a back support assembly (40) on the back plate (21), and the waist plate (22) is disposed on the waist lifting assembly (30); A waist drive assembly (51) is used to drive the waist plate (22) to rotate relative to the back plate (21); the waist drive assembly (51) is connected to the back support assembly (40) and the waist lifting assembly (30) respectively; The waist lifting assembly (30) includes: a mounting frame (1), a pushing member (2), and a support wheel (3). The mounting frame (1) is located on the bottom surface of the back plate (21) facing the ground. The mounting frame (1) is connected to the back support assembly (40). The first end of the pushing member (2) is connected to the waist drive assembly (51). The support wheel (3) is located on the second end of the pushing member (2). The support wheel (3) rolls to support the waist plate (22). The pushing member (2) is hinged to the mounting frame (1).

9. The waist lifting mechanism according to claim 8, characterized in that, The waist lifting assembly (30) further includes: a connecting rod (4), a reinforcing rod (5) and a connector (6). The two ends of the connecting rod (4) are respectively connected to two opposing pushers (2). The connecting rod (4) is hinged to the waist drive assembly (51). The two ends of the reinforcing rod (5) are respectively connected to two opposing pushers (2). The connector (6) is connected to the mounting bracket (1) and hinged to the pushers (2).

Images