A hollow sofa that can fit the size of the human body

Abstract

The present invention discloses a hollow sofa that can fit the size of a human body and relates to the technical field of sofas. The hollow sofa comprises a hollow sofa, wherein the top of the hollow sofa is rotatably connected to a rotating backrest, and the rotating backrest and the hollow sofa are both hollow structures. The inner wall of the hollow sofa is slidably connected to symmetrically arranged movable armrests, and the number of the movable armrests is two. A first electric push rod is fixedly installed on the inner wall of the top of the hollow sofa, and a control main body rod is slidably connected to the inner wall of the hollow sofa. The left and right sides of the control main body rod are respectively slidably connected to a matching sliding rod and a track fixing rod. The present invention can control the movable armrest and the fitting guard plate to approach each other by starting the first electric push rod, so that the armrest can fit the upper body and legs of the patient, thereby realizing the adjustment of the wrapping of the human body to fit the human body, increase comfort, increase the sense of security, and be easy to use.

Description

Technical Field

[0001] The present invention relates to the technical field of sofas, and in particular to a hollow sofa that can fit the size of a human body. Background Art

[0002] A hollow sofa refers to a multi-seat chair with soft cushions. Hollow sofas have become essential furniture for many families. However, the sizes of hollow sofas in the prior art are fixed, and only the angle can be adjusted, but the fit with the human body, that is, the wrapping, cannot be adjusted, and its comfort cannot be increased. Therefore, the present invention proposes a hollow sofa that can fit the size of the human body to solve the above problem. Summary of the Invention

[0003] The purpose of this application is to provide a hollow sofa that can fit the size of a human body to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present application provides the following technical solution: A hollow sofa that can fit the size of a human body includes a hollow sofa, wherein the top of the hollow sofa is rotatably connected to a rotating backrest, and the rotating backrest and the hollow sofa are both hollow structures. The inner wall of the hollow sofa is slidably connected to symmetrically arranged movable armrests, and the number of the movable armrests is two. A first electric push rod is fixedly installed on the inner wall of the top of the hollow sofa, and a control main body rod is slidably connected to the inner wall of the hollow sofa. The left and right sides of the control main body rod are respectively slidably connected to the matching sliding rod and the track fixing rod, and the right side of the track fixing rod is fixedly connected to the movable armrest at the right position. The bottom end of the control main body rod is rotatably connected to the tilting and rotating rod, and a connecting mechanism, a control mechanism and a positioning mechanism are respectively provided on the inner wall of the hollow sofa. A symmetrical adjustment mechanism is provided on the inner side of the rotating backrest, and the adjustment mechanism cooperates with the movable armrest. The connecting mechanism cooperates with the first electric push rod and the control main body rod respectively. The control mechanism cooperates with the positioning mechanism and the connecting mechanism respectively, and the positioning mechanism cooperates with the matching sliding rod.

[0005] By means of the above structure, by starting the first electric push rod, the first electric push rod pushes the control main rod downward, the control main rod slides downward on the right side of the cooperating sliding rod and pushes the cooperating sliding rod to move to the left, and the control main rod then drives the track fixing rod to move to the right, so that the movable armrest can move, and it can fit the patient's legs, and the wrapping of the human body can be adjusted to fit the human body, increase comfort, increase sense of security, and be easy to use.

[0006] Preferably, the connecting mechanism includes a rectangular sliding frame, a transmission matching plate and a bearing sliding plate, the bearing sliding plate is slidably connected to the front side of the main frame, the rectangular sliding frame is fixedly connected to the bearing sliding plate, the transmission matching plate is slidably connected to the inner side of the rectangular sliding frame, and the transmission matching plate is fixedly connected to the first electric push rod.

[0007] Furthermore, through the connecting mechanism, the connecting mechanism can connect the first electric push rod and the control main rod in the hollow sofa, so that the control main rod can slide downward on the inner side of the hollow sofa, so that the control main rod can drive the movable armrest on the right side to move to the left.

[0008] Preferably, the control mechanism includes an unlocking connecting rod, a pushing rod and a sliding connecting block, the pushing rod is rotatably connected to the transmission matching plate, the pushing rod is rotatably connected to the sliding connecting block, the sliding connecting block is slidably connected to the front side of the supporting sliding plate, the sliding connecting block cooperates with the unlocking connecting rod, and the unlocking connecting rod is slidably connected to the inner wall of the hollow sofa.

[0009] Furthermore, through the control mechanism, the control mechanism is used to control the positioning mechanism in the hollow sofa to release the cooperating sliding rod, so that the cooperating sliding rod can move in the hollow sofa, and the cooperating sliding rod, the control main body rod and the track fixing rod can be positioned, which greatly increases the stability of the right-side movable armrest during use.

[0010] Preferably, the positioning mechanism includes a fixing plate, two springs and a positioning plate, the fixing plate is fixedly mounted on the inner wall of the hollow sofa, the fixing plate is fixedly connected to the springs, the springs are fixedly connected to the positioning plate, and the positioning plate is slidably connected to the inner wall of the hollow sofa.

[0011] Furthermore, through the positioning mechanism, the positioning mechanism is used to automatically position the matching sliding rod, the control body rod and the track fixing rod in the hollow sofa, which greatly increases the stability of the movable armrest when the position is adjusted.

[0012] Preferably, the adjustment mechanism includes a fitting guard plate, a movable telescopic rod and a connecting auxiliary rod, the fitting guard plate is fixedly connected to the movable telescopic rod, the movable telescopic rod is slidably connected to the inner wall of the rotating backrest, the movable telescopic rod is fixedly connected to the connecting auxiliary rod, and the connecting auxiliary rod is fixedly connected to the movable armrest.

[0013] Furthermore, the adjustment mechanism can adjust the distance between the two shoulders in the hollow sofa so that the distance fits the two shoulders of the user, thereby increasing the comfort of the user leaning on the rotating backrest.

[0014] Preferably, a plurality of positioning rods arranged at equal intervals are fixedly mounted on the bottom end of the positioning plate, and an engaging blocking block is fixedly mounted on the top end of the mating sliding rod, and the top outer side of the engaging blocking block is in sliding contact with the positioning rod.

[0015] Furthermore, after the positioning rod is fitted with the engaging blocking block, the positioning rod can block the engaging blocking block and the matching sliding rod from moving, thereby achieving positioning of the matching sliding rod.

[0016] Preferably, the right side of the hollow sofa is rotatably connected to a second electric push rod, the top left side of the second electric push rod is rotatably connected to the right side of the rotating backrest, and a headrest is fixedly installed on the top of the rotating backrest.

[0017] Furthermore, the second electric push rod is used to adjust the angle of the backrest of the hollow sofa on the right side of the hollow sofa, which is convenient for use.

[0018] Preferably, a vertical sliding groove is provided on the front side of the unlocking connecting rod, a sliding block is fixedly installed on the rear side of the sliding connecting block, and the rear side of the sliding block is slidably connected to the inner wall of the vertical sliding groove.

[0019] Furthermore, the vertical sliding groove is used to push the unlocking connecting rod to the left after the sliding connecting block moves downward, so that the unlocking connecting rod can push the positioning plate to release the matching sliding rod.

[0020] Preferably, a horizontal slide groove is provided on the front side of the hollow sofa, and the outer side of the rear side of the movable armrest is slidably connected to the inner wall of the horizontal slide groove. Symmetrically arranged seat cushions are fixedly installed on the front side of the hollow sofa, and the two seat cushions are in sliding contact with each other on the sides close to each other, and the two seat cushions are respectively in sliding contact with the two movable armrests.

[0021] Furthermore, the horizontal slide groove is used to allow the two movable armrests to approach each other to fit the patient's body, and the seat cushion is used to cover the horizontal slide groove, and the movable armrest passes between the two seat cushions.

[0022] Preferably, a driving gear is fixedly installed on the front side of the bottom end of the tilting and rotating rod, and an L-shaped rack is fixedly installed on the bottom left end of the movable armrest located on the left side, and the L-shaped rack is meshed with the driving gear.

[0023] Furthermore, the driving gear and the L-shaped rack are used to drive the movable armrest at the left position to move to the right when the tilting and rotating rod rotates counterclockwise, so that the two movable armrests are brought closer to each other.

[0024] In summary, the technical effects and advantages of the present invention are as follows:

[0025] 1. The connecting mechanism can connect the first electric push rod and the control main rod in the hollow sofa, so that the control main rod can slide downward inside the hollow sofa, so that the control main rod can drive the movable armrest on the right position to move to the left;

[0026] 2. Through the control mechanism, the control mechanism is used to control the positioning mechanism in the hollow sofa to release the matching sliding rod, so that the matching sliding rod can move in the hollow sofa, and the matching sliding rod, the control main rod and the track fixing rod can be positioned, which greatly increases the stability of the right-side movable armrest when in use;

[0027] 3. Through the positioning mechanism, the positioning mechanism is used to automatically position the matching sliding rod, the control main rod and the track fixing rod in the hollow sofa, which greatly increases the stability of the movable armrest when adjusting the position;

[0028] 4. Through the adjustment mechanism, the distance between the two shoulders can be adjusted in the hollow sofa, so that it can fit the user's two shoulders and increase the comfort of the user leaning on the rotating backrest;

[0029] The present invention can control the moving armrest and the fitting guard plate to move closer to each other by starting the first electric push rod, so that they can fit the patient's upper body and legs, thereby adjusting the wrapping of the human body to fit the human body, increase comfort, increase sense of security, and facilitate use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present application;

[0031] Figure 2 This is a schematic cross-sectional view of the structure of an embodiment of the present application;

[0032] Figure 3 A schematic side view of the structure of an embodiment of the present application;

[0033] Figure 4 A three-dimensional schematic diagram of the structure of an embodiment of the present application;

[0034] Figure 5 The structure of the embodiment of this application is attached Figure 2 Middle A is an enlarged schematic diagram;

[0035] Figure 6 The structure of the embodiment of this application is attached Figure 2 Middle B is an enlarged schematic diagram;

[0036] Figure 7 The structure of the embodiment of this application is attached Figure 2 Middle C is an enlarged schematic diagram;

[0037] Figure 8 The structure of the embodiment of this application is attached Figure 3 Middle D is the enlarged schematic diagram.

[0038] In the figure: 1. Hollow sofa; 2. Moving armrest; 3. Rotating backrest; 4. Fitting guard plate; 5. Moving telescopic rod; 6. First electric push rod; 7. Track fixing rod; 8. Matching sliding rod; 9. Control main body rod; 10. Unlocking connecting rod; 11. Engaging blocking block; 12. L-shaped rack; 13. Tilt and rotate rod; 14. Driving gear; 15. Second electric push rod; 16. Connecting auxiliary rod; 17. Rectangular sliding frame; 18. Transmission matching plate; 19. Push rod; 20. Load-bearing sliding plate; 21. Sliding connecting block; 22. Fixed plate; 23. Spring; 24. Positioning plate; 25. Positioning rod. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] Example

[0041] refer to Figure 1-8 In this embodiment, a hollow sofa that can fit the size of a human body is proposed, including a hollow sofa 1, the top of the hollow sofa 1 is rotatably connected to a rotating backrest 3, the rotating backrest 3 and the hollow sofa 1 are both hollow structures, the inner wall of the hollow sofa 1 is slidably connected to a symmetrically arranged movable armrest 2, the number of which is two, a first electric push rod 6 is fixedly installed on the top inner wall of the hollow sofa 1, a control main body rod 9 is slidably connected to the inner wall of the hollow sofa 1, the left and right sides of the control main body rod 9 are respectively slidably connected to a matching sliding rod 8 and a track fixing rod 7, the right side of the track fixing rod 7 is fixedly connected to the movable armrest 2 at the right position, the bottom end of the control main body rod 9 is rotatably connected to a tilting and rotating rod 13, a connecting mechanism, a control mechanism and a positioning mechanism are respectively provided on the inner wall of the hollow sofa 1, a symmetrically arranged adjustment mechanism is provided on the inner side of the rotating backrest 3, the adjustment mechanism cooperates with the movable armrest 2, the connecting mechanism cooperates with the first electric push rod 6 and the control main body rod 9 respectively, the control mechanism cooperates with the positioning mechanism and the connecting mechanism respectively, and the positioning mechanism cooperates with the matching sliding rod 8.

[0042] By means of the above structure, by starting the first electric push rod 6, the first electric push rod 6 pushes the control main rod 9 downward, the control main rod 9 slides downward on the right side of the matching sliding rod 8 and pushes the matching sliding rod 8 to move to the left, and the control main rod 9 then drives the track fixing rod 7 to move to the right, so that the movable armrest 2 can be moved, and it can fit the patient's legs, and the human body wrapping can be adjusted to fit the human body, increase comfort, increase sense of security, and be easy to use.

[0043] As a preferred implementation scheme of this embodiment, the connecting mechanism includes a rectangular sliding frame 17, a transmission matching plate 18 and a bearing sliding plate 20, the bearing sliding plate 20 is slidingly connected to the front side of the main frame, the rectangular sliding frame 17 is fixedly connected to the bearing sliding plate 20, the transmission matching plate 18 is slidingly connected to the inner side of the rectangular sliding frame 17, and the transmission matching plate 18 is fixedly connected to the first electric push rod 6.

[0044] Furthermore, through the connecting mechanism, the connecting mechanism can connect the first electric push rod 6 and the control main rod 9 in the hollow sofa 1, so that the control main rod 9 can slide downward on the inner side of the hollow sofa 1, so that the control main rod 9 can drive the movable armrest 2 on the right side to move to the left.

[0045] As a preferred implementation manner of this embodiment, the control mechanism includes an unlocking connecting rod 10, a pushing rod 19 and a sliding connecting block 21. The pushing rod 19 is rotatably connected to the transmission matching plate 18, the pushing rod 19 is rotatably connected to the sliding connecting block 21, the sliding connecting block 21 is slidably connected to the front side of the bearing sliding plate 20, the sliding connecting block 21 cooperates with the unlocking connecting rod 10, and the unlocking connecting rod 10 is slidably connected to the inner wall of the hollow sofa 1.

[0046] Furthermore, through the control mechanism, the control mechanism is used to control the positioning mechanism in the hollow sofa 1 to release the cooperating sliding rod 8, so that the cooperating sliding rod 8 can move in the hollow sofa 1, and the cooperating sliding rod 8, the control main rod 9 and the track fixing rod 7 can be positioned, which greatly increases the stability of the right position movable armrest 2 during use.

[0047] As a preferred implementation of this embodiment, the positioning mechanism includes a fixing plate 22, two springs 23 and a positioning plate 24. The fixing plate 22 is fixedly mounted on the inner wall of the hollow sofa 1. The fixing plate 22 is fixedly connected to the spring 23. The spring 23 is fixedly connected to the positioning plate 24. The positioning plate 24 is slidably connected to the inner wall of the hollow sofa 1. Through the positioning mechanism, the positioning mechanism is used to automatically position the matching sliding rod 8, the control main rod 9 and the track fixing rod 7 in the hollow sofa 1, greatly increasing the stability of the moving armrest 2 when adjusting the position.

[0048] As a preferred implementation manner of this embodiment, the adjustment mechanism includes a fitting guard plate 4, a movable telescopic rod 5 and a connecting auxiliary rod 16. The fitting guard plate 4 is fixedly connected to the movable telescopic rod 5, the movable telescopic rod 5 is slidably connected to the inner wall of the rotating backrest 3, the movable telescopic rod 5 is fixedly connected to the connecting auxiliary rod 16, and the connecting auxiliary rod 16 is fixedly connected to the movable armrest 2. Through the adjustment mechanism, the adjustment mechanism can adjust the distance between the two shoulders in the hollow sofa 1, so that it can fit the two shoulders of the user, thereby increasing the comfort of the user leaning on the rotating backrest 3.

[0049] In this embodiment, a plurality of positioning rods 25 arranged at equal intervals are fixedly installed on the bottom end of the positioning plate 24, and an engaging blocking block 11 is fixedly installed on the top end of the mating sliding rod 8. The top outer side of the engaging blocking block 11 is in sliding contact with the positioning rod 25. After the positioning rod 25 is in contact with the engaging blocking block 11, the positioning rod 25 can block the engaging blocking block 11 and the mating sliding rod 8 from moving, thereby realizing the positioning of the mating sliding rod 8.

[0050] In this embodiment, the right side of the hollow sofa 1 is rotatably connected to the second electric push rod 15, and the top left side of the second electric push rod 15 is rotatably connected to the right side of the rotating backrest 3. A headrest is fixedly installed on the top of the rotating backrest 3. The second electric push rod 15 is used to adjust the angle of the rotating backrest 3 of the hollow sofa 1 on the right side of the hollow sofa 1 for easy use.

[0051] In this embodiment, a vertical slide groove is provided on the front side of the unlocking connecting rod 10, and a sliding block is fixedly installed on the rear side of the sliding connecting block 21. The rear side of the sliding block is slidably connected to the inner wall of the vertical slide groove. The vertical slide groove is used to push the unlocking connecting rod 10 to the left after the sliding connecting block 21 moves downward, so that the unlocking connecting rod 10 can push the positioning plate 24 to release the cooperating sliding rod 8.

[0052] In this embodiment, a horizontal slide groove is provided on the front side of the hollow sofa 1, and the outer side of the rear side of the movable armrest 2 is slidably connected to the inner wall of the horizontal slide groove. A symmetrically arranged seat cushion is fixedly installed on the front side of the hollow sofa 1. The two seat cushions are in sliding contact with each other on the side close to each other, and the two seat cushions are respectively in sliding contact with the two movable armrests 2. The horizontal slide groove is used to allow the two movable armrests 2 to approach each other to fit the patient's body. At the same time, the seat cushion is used to block the horizontal slide groove, and the movable armrest 2 passes between the two seat cushions.

[0053] In this embodiment, a driving gear 14 is fixedly installed on the front side of the bottom end of the tilting and rotating rod 13, and an L-shaped rack 12 is fixedly installed on the bottom end of the left end of the movable armrest 2 located on the left side. The L-shaped rack 12 is engaged with the driving gear 14. The driving gear 14 and the L-shaped rack 12 are used to drive the movable armrest 2 on the left side to move to the right when the tilting and rotating rod 13 is rotated counterclockwise, so that the two movable armrests 2 are close to each other.

[0054] Working principle: When the hollow sofa 1 needs to fit the human body and adjust the wrapping of the hollow sofa 1, it is only necessary to start the first electric push rod 6 on the inside of the hollow sofa 1. The first electric push rod 6 first extends downward to push the transmission matching plate 18 to slide on the inside of the rectangular sliding frame 17, first pushing the push rod 19, and the push rod 19 then pushes the sliding connecting block 21 to move to the left, and the sliding connecting block 21 then pushes the unlocking connecting rod 10 to move to the left, and the unlocking connecting rod 10 can move to the left, and the top end of the unlocking connecting rod 10 slides on the bottom of the positioning frame, which can push the positioning plate 24 upward, and the positioning plate 24 can drive the positioning rod 25 to release the engaging blocking block 11, so that the engaging blocking block 11 and the cooperating sliding rod 8 can be unlocked.

[0055] When the first electric push rod 6 continues to extend, it can push the rectangular sliding frame 17 and the bearing sliding plate 20 to move downward, and the bearing sliding plate 20 can push the control main body rod 9 downward, so that the control main body rod 9 can push the tilting and rotating rod 13 to rotate counterclockwise. The control main body rod 9 first slides downward on the right side of the matching sliding rod 8 and pushes the matching sliding rod 8 to move to the left. The control main body rod 9 then drives the track fixing rod 7 to move to the right, which can drive the movable armrest 2 at the right position to move to the left. At the same time, the tilting and rotating rod 13 drives the driving gear 14 to rotate counterclockwise, which can drive the L-shaped rack 12 to move to the right, and the L-shaped rack 12 can drive the movable armrest 2 at the left position to move to the right, so that the two movable armrests 2 are close to each other.

[0056] When the two movable armrests 2 are close to each other, the two movable telescopic rods 5 can also be driven to approach each other. When the two movable telescopic rods 5 are close to each other, the two fitting guard plates 4 will be driven to approach each other. At this time, the movable armrests 2 fit the user's thighs and buttocks, and the fitting guard plates 4 fit the user's shoulders, which can increase the fit between the user and the hollow sofa 1 and increase the wrapping of the hollow sofa 1. A horizontal slide is provided on the front side of the hollow sofa 1, and the outer side of the rear side of the movable armrest 2 is slidably connected to the inner wall of the horizontal slide. A symmetrically arranged seat cushion is fixedly installed on the front side of the hollow sofa 1, and the two seat cushions are slidably connected on the side close to each other. The two seat cushions are in sliding contact with the two movable armrests 2 respectively. The horizontal slide groove is used for the two movable armrests 2 to be close to each other to fit the patient's body. At the same time, the seat cushion is used to block the horizontal slide groove. The movable armrest 2 passes through the middle of the two seat cushions. Then the first electric push rod 6 is retracted upward by one end, and the push rod 19 can be pulled through the transmission matching plate 18. The push rod 19 can pull the sliding connecting block 21 and the unlocking connecting rod 10 to move to the right to release the positioning plate 24. The positioning plate 24 can be reset by the rebound of the two springs 23, so that the positioning rod 25 is fitted with the engagement blocking block 11.

[0057] After the positioning rod 25 is fitted with the engaging blocking block 11, the positioning rod 25 can block the engaging blocking block 11 and the matching sliding rod 8 from moving, thereby realizing the positioning of the matching sliding rod 8, and also realizing the positioning of the control main rod 9 and the track fixing rod 7, so that the movable armrest 2 and the fitting guard plate 4 cannot move, which greatly increases the stability of the movable armrest 2 when adjusting the position. At this time, the second electric push rod 15 can also be started on the right side of the hollow sofa 1, and the second electric push rod 15 can push the rotating backrest 3 to rotate in the hollow sofa 1, so that the angle of the rotating backrest 3 can be adjusted for easy use.

[0058] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hollow sofa that can fit the size of a human body, comprising a hollow sofa (1), characterized in that: The top of the hollow sofa (1) is rotatably connected to a rotating backrest (3), and the rotating backrest (3) and the hollow sofa (1) are both hollow structures. The inner wall of the hollow sofa (1) is slidably connected to symmetrically arranged movable armrests (2), and the number of the movable armrests (2) is two. A first electric push rod (6) is fixedly installed on the inner wall of the top of the hollow sofa (1). A control main body rod (9) is slidably connected to the inner wall of the hollow sofa (1). The left and right sides of the control main body rod (9) are respectively slidably connected to a matching sliding rod (8) and a track fixing rod (7). The track fixing rod (8) is fixed to the inner wall of the hollow sofa (1). The right side of the fixed rod (7) is fixedly connected to the movable armrest (2) at the right position, the bottom end of the control main rod (9) is rotatably connected to the tilting and rotating rod (13), the inner wall of the hollow sofa (1) is respectively provided with a connecting mechanism, a control mechanism and a positioning mechanism, the inner side of the rotating backrest (3) is provided with a symmetrically arranged adjustment mechanism, the adjustment mechanism cooperates with the movable armrest (2), the connecting mechanism cooperates with the first electric push rod (6) and the control main rod (9), the control mechanism cooperates with the positioning mechanism and the connecting mechanism, and the positioning mechanism cooperates with the matching sliding rod (8); The connecting mechanism comprises a rectangular sliding frame (17), a transmission matching plate (18) and a bearing sliding plate (20), wherein the bearing sliding plate (20) is slidably connected to the front side of the main frame, the rectangular sliding frame (17) is fixedly connected to the bearing sliding plate (20), the transmission matching plate (18) is slidably connected to the inner side of the rectangular sliding frame (17), and the transmission matching plate (18) is fixedly connected to the first electric push rod (6); The control mechanism comprises an unlocking connecting rod (10), a pushing rod (19) and a sliding connecting block (21), wherein the pushing rod (19) is rotatably connected to the transmission matching plate (18), the pushing rod (19) is rotatably connected to the sliding connecting block (21), the sliding connecting block (21) is slidably connected to the front side of the bearing sliding plate (20), the sliding connecting block (21) cooperates with the unlocking connecting rod (10), and the unlocking connecting rod (10) is slidably connected to the inner wall of the hollow sofa (1).

2. A hollow sofa that can fit the size of a human body according to claim 1, characterized in that: The positioning mechanism comprises a fixing plate (22), two springs (23) and a positioning plate (24); the fixing plate (22) is fixedly mounted on the inner wall of the hollow sofa (1); the fixing plate (22) is fixedly connected to the springs (23); the springs (23) are fixedly connected to the positioning plate (24); and the positioning plate (24) is slidably connected to the inner wall of the hollow sofa (1).

3. The hollow sofa that can fit the size of the human body according to claim 1, characterized in that: The adjustment mechanism comprises a fitting guard plate (4), a movable telescopic rod (5) and a connecting auxiliary rod (16); the fitting guard plate (4) is fixedly connected to the movable telescopic rod (5); the movable telescopic rod (5) is slidably connected to the inner wall of the rotating backrest (3); the movable telescopic rod (5) is fixedly connected to the connecting auxiliary rod (16); and the connecting auxiliary rod (16) is fixedly connected to the movable armrest (2).

4. The hollow sofa that can fit the size of the human body according to claim 2, characterized in that: A plurality of positioning rods (25) arranged at equal intervals are fixedly mounted on the bottom end of the positioning plate (24), and an engaging blocking block (11) is fixedly mounted on the top end of the matching sliding rod (8), and the outer side of the top of the engaging blocking block (11) is in sliding contact with the positioning rod (25).

5. The hollow sofa that can fit the size of a human body according to claim 1, characterized in that: The right side of the hollow sofa (1) is rotatably connected to a second electric push rod (15), and the left side of the top of the second electric push rod (15) is rotatably connected to the right side of the rotating backrest (3), and a headrest is fixedly installed on the top of the rotating backrest (3).

6. The hollow sofa that can fit the size of a human body according to claim 1, characterized in that: A vertical sliding groove is provided on the front side of the unlocking connecting rod (10), and a sliding block is fixedly installed on the rear side of the sliding connecting block (21), and the rear side of the sliding block is slidably connected to the inner wall of the vertical sliding groove.

7. The hollow sofa that can fit the size of a human body according to claim 1, characterized in that: A horizontal slide groove is provided on the front side of the hollow sofa (1); the outer side of the rear side of the movable armrest (2) is slidably connected to the inner wall of the horizontal slide groove; symmetrically arranged seat cushions are fixedly installed on the front side of the hollow sofa (1); the two seat cushions are in sliding contact with each other on the sides close to each other, and the two seat cushions are in sliding contact with the two movable armrests (2) respectively.

8. The hollow sofa that can fit the size of a human body according to claim 1, characterized in that: A driving gear (14) is fixedly installed on the front side of the bottom end of the tilting and rotating rod (13), and an L-shaped rack (12) is fixedly installed on the bottom end of the left end of the movable armrest (2), and the L-shaped rack (12) is meshed with the driving gear (14).

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