Rotating space chair frame and space chair

Abstract

The utility model belongs to the technical field of outdoor products, and particularly refers to a rotating space chair frame and a space chair, comprising a seat bracket located at the top, a leg bracket located at the bottom and a rotating connector that movably connects the seat bracket and the leg bracket, the rotating connector comprising an upper rotating seat, a lower rotating seat and a rotating shaft, the lower end of the rotating shaft is fixed to the lower rotating seat, the upper end of the rotating shaft is rotatably connected to the upper rotating seat, the seat bracket can be folded and arranged on the upper rotating seat, the leg bracket can be folded and arranged on the lower rotating seat, a first flat pressure bearing is arranged between the upper rotating seat and the lower rotating seat, a second flat pressure bearing is arranged between the upper rotating seat and the rotating shaft, the first flat pressure bearing and the second flat pressure bearing are both sleeved on the rotating shaft, filling the rotation gap between the upper rotating seat and the lower rotating seat and the rotation gap between the upper rotating seat and the rotating shaft respectively, while improving the rotation smoothness, reducing the friction loss rate, extending the service life, and being more stable without shaking during use.

Description

Technical Field

[0001] The utility model belongs to the technical field of outdoor products, in particular to a rotating space chair frame and a space chair. Background Art

[0002] Space chairs, also called folding chairs or outdoor chairs, are easy to fold and carry, and are suitable for use outdoors and in temporary places, such as picnics, camping, fishing, sports events, etc. Space chairs usually include a foldable chair frame and a seat cover mounted on the chair frame. The seat cover is stretched out by the chair frame to support the human body. The chair frame usually includes a plurality of pivoted rods, so that it can be relatively unfolded and folded.

[0003] In order to meet the needs of use, the chair frame can also be set to a rotatable structure, but in order to allow the two connected parts to rotate relative to each other, the connection must not be installed very tightly, and a rotation gap must be retained, which will cause shaking, uneven force, and easy damage. For example, Chinese utility model patent No. 202222807815.3 discloses a rotating folding chair, whose rotating assembly includes an upper connecting seat, a lower connecting seat and a hinge shaft. The patent also points out that the friction loss of the contact surface between the upper rotating seat and the lower rotating seat will increase with the increase of the user's weight. When the degree of wear is large, it is easy to cause relative shaking between the upper rotating seat and the lower rotating seat, affecting the normal service life of the chair. Therefore, the utility model reduces friction damage by setting a wear-resistant gasket between the upper connecting seat and the lower connecting seat.

[0004] Although the above problems have been solved to a certain extent, there is still room for improvement in its structure and use effect. There is a need for a rotating space chair frame and a space chair whose rotating structure rotates more smoothly without shaking. Summary of the invention

[0005] The utility model aims to provide a rotating space chair frame and a space chair which have a simple structure, are smoother and less shaking when rotating, are comfortable and stable, and have a longer service life.

[0006] The purpose of the utility model is achieved in this way:

[0007] A rotating space chair frame comprises a seat bracket located at the top, a leg bracket located at the bottom and a rotating connector located in the middle and movably connecting the seat bracket and the leg bracket, the rotating connector comprises an upper rotating seat, a lower rotating seat and a rotating shaft connecting the upper rotating seat and the lower rotating seat, the lower end of the rotating shaft is fixed to the lower rotating seat, the upper end of the rotating shaft is rotatably connected to the upper rotating seat, the seat bracket can be folded and arranged on the upper rotating seat, the leg bracket can be folded and arranged on the lower rotating seat, a first flat pressure bearing is arranged between the upper rotating seat and the lower rotating seat, a second flat pressure bearing is arranged between the upper rotating seat and the rotating shaft, and the first flat pressure bearing and the second flat pressure bearing are both sleeved on the rotating shaft.

[0008] Furthermore, the first flat pressure bearing and the second flat pressure bearing both include an upper seat ring, a retaining frame, a steel ball and a lower seat ring. The steel ball is arranged on the retaining frame and is located between the upper seat ring and the lower seat ring. The upper and lower ends of the steel ball are in contact with the upper seat ring and the lower seat ring respectively, and the upper seat ring and the lower seat ring can rotate relatively.

[0009] Furthermore, an upper groove is formed at the lower end of the upper rotating seat, and the upper seat ring of the first flat pressure bearing is arranged in the upper groove; a lower groove is formed at the upper end of the lower rotating seat, and the lower seat ring of the first flat pressure bearing is arranged in the lower groove; an upper connecting tube is also formed at the lower end of the upper rotating seat, and a lower connecting tube is also formed at the upper end of the lower rotating seat, the diameter of the upper connecting tube is larger than the diameter of the lower connecting tube, and the upper connecting tube is sleeved on the lower connecting tube.

[0010] Furthermore, a mounting groove is formed on the upper end of the upper rotating seat, and the second flat pressure bearing is arranged in the mounting groove.

[0011] Furthermore, the rotating shaft is a screw, which includes an end cap portion, a rotating shaft portion and a threaded portion from top to bottom. A through connecting hole is opened in the middle of the rotating connecting piece. The screw is inserted from the connecting hole of the upper rotating seat and passes through the connecting hole connected to the lower rotating seat. The end cap portion is arranged on the upper rotating seat, the threaded portion is fixed on the lower rotating seat and a nut is arranged at the end, and the rotating shaft portion can be rotatably sleeved on the upper rotating seat.

[0012] Furthermore, a cap cover is arranged on the upper rotating seat and above the end cap portion, and a lower cover is arranged on the lower rotating seat and below the threaded portion.

[0013] Furthermore, the upper rotating seat is formed with a plurality of mounting ends in the circumference, and a seat bracket is rotatably connected in each of the mounting ends; the lower rotating seat is formed with a plurality of fixed ends in the circumference, and a chair leg bracket is rotatably connected in each of the fixed ends.

[0014] Furthermore, the seat support includes a front support rod and a rear support rod, and the length of the rear support rod is greater than that of the front support rod; the chair leg support includes a plurality of legs, the upper ends of the legs are rotatably arranged on the fixed ends, and the lower ends are detachably provided with anti-slip pads.

[0015] Furthermore, the back leaning rod includes an upper back tube and a lower back tube that are detachably connected, the lower back tube is rotatably arranged on the mounting end, and tube plugs are arranged at both upper and lower ends of the back leaning rod, and an elastic rope is arranged between the two tube plugs. In the folded state, the upper back tube can be removed from the lower back tube for folding.

[0016] A rotating space chair comprises the rotating space chair frame mentioned above, and also comprises a seat surface detachably arranged on the seat support, wherein the seat surface is made of soft material.

[0017] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0018] The utility model provides a rotating space chair frame which can rotate more smoothly without shaking, specifically comprising a seat bracket for installing a chair surface to support a human body, a leg bracket being arranged below the seat bracket, the lower end of the seat bracket and the upper end of the leg bracket being connected by a rotating connecting piece, the rotating connecting piece mainly comprising an upper rotating seat and a lower rotating seat which can rotate relatively, a rotating shaft being arranged in the middle of the upper rotating seat and the lower rotating seat, the upper end of the rotating shaft being movably arranged on the upper rotating seat, the lower end of the rotating shaft being fixed on the lower rotating seat, so that the upper rotating seat can rotate relative to the lower rotating seat around the rotating shaft, and the seat bracket can be foldably arranged on the upper rotating seat, and the leg bracket can be foldably arranged on the lower rotating seat, that is, the seat bracket can rotate relative to the leg bracket, so as to improve the practicality and interest of the utility model, the rotating space chair frame can be simply folded, and the seat bracket and the leg bracket can be folded when not in use to reduce the storage space, so as to facilitate carrying;

[0019] Since the upper rotating seat needs to rotate relative to the lower rotating seat around the rotating axis, greater friction and even wear will occur at the connection between the upper rotating seat and the lower rotating seat, and at the connection between the upper rotating seat and the rotating axis. The utility model arranges a first flat pressure bearing between the upper rotating seat and the lower rotating seat, and a second flat pressure bearing between the upper rotating seat and the rotating axis. The first flat pressure bearing and the second flat pressure bearing are both sleeved on the rotating axis, respectively filling the rotation gap between the upper rotating seat and the lower rotating seat and the rotation gap between the upper rotating seat and the rotating axis, thereby improving the rotation smoothness and reducing the friction loss rate, thereby extending the service life. It will not shake during use and is more stable, thereby improving the use experience and safety.

[0020] The utility model also provides a rotating space chair that rotates more smoothly without shaking, including the above-mentioned rotating space chair frame, and also including a seat surface detachably arranged on the seat support, the seat surface is made of soft material, such as Oxford cloth, which is strong and reliable, has strong load-bearing capacity, is waterproof and dirt-resistant, and in the unfolded state, the upper end of the seat support is unfolded outward, and the lower end of the leg support is stretched outward, and the chair surface is set on the seat support for use; in the folded state, the chair surface is removed from the seat support, the lower ends of the leg support are brought close to each other, and the seat support is folded downward to be close to the leg support. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is one of the three-dimensional diagrams of the utility model (in the unfolded state).

[0022] Figure 2 This is the second stereogram of the utility model (in the unfolded state).

[0023] Figure 3 It is a three-dimensional diagram of the utility model (chair leg bracket folded state).

[0024] Figure 4 It is one of the three-dimensional diagrams of the utility model (folded state).

[0025] Figure 5 This is the second stereogram of the utility model (folded state).

[0026] Figure 6 It is an exploded view of the utility model.

[0027] Figure 7 It is a three-dimensional diagram of a rotating connection.

[0028] Figure 8 is a cross-sectional view of a rotating connection.

[0029] Fig. 9 This is one of the exploded views of a rotating joint.

[0030] Fig.10 This is the second exploded view of the rotating connection.

[0031] Fig.11 It is an exploded view of the first flat pressure bearing or the second flat pressure bearing.

[0032] Fig.12 It is a stereogram of the axis of rotation.

[0033] The meaning of the symbols in the figure:

[0034] 1-seat bracket; 2-foot bracket; 3-rotating connector; 4-upper rotating seat; 5-lower rotating seat;

[0035] 6-rotating shaft; 7-first flat pressure bearing; 8-second flat pressure bearing; 9-upper race; 10-cage;

[0036] 11- steel ball; 12- lower seat ring; 13- upper slot; 14- lower slot; 15- upper connecting pipe;

[0037] 16-lower connecting pipe; 17-installation groove; 18-end cap portion; 19-rotating shaft portion; 20-threaded portion;

[0038] 21-connection hole; 22-nut; 23-cap; 24-lower cover; 25-installation end; 26-fixed end;

[0039] 27-front support rod; 28-rear support rod; 29-support leg; 30-anti-slip foot pad; 31-upper back tube; 32-lower back tube; 33-tube plug. DETAILED DESCRIPTION

[0040] The utility model is further described below in conjunction with specific embodiments:

[0041] A rotating space chair frame includes a seat support 1 located at the top, a leg support 2 located at the bottom, and a rotating connector 3 located in the middle and movably connecting the seat support 1 and the leg support 2. The rotating connector 3 includes an upper rotating seat 4, a lower rotating seat 5, and a rotating shaft 6 connecting the upper rotating seat 4 and the lower rotating seat 5. The lower end of the rotating shaft 6 is fixed to the lower rotating seat 5, and the upper end of the rotating shaft 6 is rotatably connected to the upper rotating seat 4. The seat support 1 can be folded and arranged on the upper rotating seat 4, and the leg support 2 can be folded and arranged on the lower rotating seat 5. A first flat pressure bearing 7 is arranged between the upper rotating seat 4 and the lower rotating seat 5, and a second flat pressure bearing 8 is arranged between the upper rotating seat 4 and the rotating shaft 6. The first flat pressure bearing 7 and the second flat pressure bearing 8 are both sleeved on the rotating shaft 6.

[0042] The utility model provides a rotating space chair frame which can rotate more smoothly without shaking, specifically comprising a seat bracket 1 for installing a chair surface to support a human body, a leg bracket 2 is arranged below the seat bracket 1, the lower end of the seat bracket 1 and the upper end of the leg bracket 2 are connected by a rotating connecting piece 3, the rotating connecting piece 3 is mainly composed of an upper rotating seat 4 and a lower rotating seat 5 which can rotate relatively, a rotating shaft 6 is arranged in the middle of the upper rotating seat 4 and the lower rotating seat 5, the upper end of the rotating shaft 6 is movably arranged on the upper rotating seat 4, and the lower end of the rotating shaft 6 is fixed on the lower rotating seat 5, so that the upper rotating seat 4 can rotate relative to the lower rotating seat 5 around the rotating shaft 6, and the seat bracket 1 can be folded and arranged on the upper rotating seat 4, and the leg bracket 2 can be folded and arranged on the lower rotating seat 5, that is, the seat bracket 1 can rotate relative to the leg bracket 2, so as to improve the practicality and interest of the utility model, and the rotating space chair frame can be simply folded, and the seat bracket 1 and the leg bracket 2 can be folded when not in use to reduce the storage space, so as to be easy to carry;

[0043] Since the upper rotating seat 4 needs to rotate relative to the lower rotating seat 5 around the rotating axis 6, the connection between the upper rotating seat 4 and the lower rotating seat 5, and the connection between the upper rotating seat 4 and the rotating axis 6 will produce greater friction and even wear. The utility model arranges a first flat pressure bearing 7 between the upper rotating seat 4 and the lower rotating seat 5, and a second flat pressure bearing 8 is arranged between the upper rotating seat 4 and the rotating axis 6. The first flat pressure bearing 7 and the second flat pressure bearing 8 are both sleeved on the rotating axis 6, respectively filling the rotation gap between the upper rotating seat 4 and the lower rotating seat 5 and the rotation gap between the upper rotating seat 4 and the rotating axis 6, while improving the rotation smoothness and reducing the friction loss rate, thereby extending the service life. It will not shake during use and is more stable, thereby improving the use experience and safety.

[0044] As a preferred embodiment, the first flat pressure bearing 7 and the second flat pressure bearing 8 are both thrust ball bearings, including an upper race 9, a retaining frame 10, a steel ball 11 and a lower race 12. The steel ball 11 is arranged on the retaining frame 10 and is located between the upper race 9 and the lower race 12. The upper and lower ends of the steel ball 11 are in contact with the upper race 9 and the lower race 12 respectively, and the upper race 9 and the lower race 12 can rotate relatively. The flat pressure bearing has a compact structure and has the advantages of small friction coefficient, high power transmission efficiency, low heat generation, convenient lubrication and maintenance, easy installation, disassembly and maintenance, small internal clearance, high machining accuracy, and can improve the bearing rigidity by applying preload, long service life, etc.

[0045] As a preferred embodiment, an upper groove 13 is formed at the lower end of the upper rotating seat 4, and the upper seat ring 9 of the first flat pressure bearing 7 is arranged in the upper groove 13. Since the contact surface between the upper seat ring 9 and the upper groove 13 is large and there is friction, the upper rotating seat 4 will not rotate relative to the upper seat ring 9. Similarly, a lower groove 14 is formed at the upper end of the lower rotating seat 5, and the lower seat ring 12 of the first flat pressure bearing 7 is arranged in the lower groove 14, and the lower rotating seat 5 will not rotate relative to the lower seat ring 12.

[0046] For the sake of aesthetics and to prevent the first flat pressure bearing 7 from being exposed, impurities from entering, parts from being knocked and falling, etc., an upper connecting tube 15 is formed at the lower end of the upper rotating seat 4, and a lower connecting tube 16 is formed at the upper end of the lower rotating seat 5. The diameter of the upper connecting tube 15 is larger than the diameter of the lower connecting tube 16. The upper connecting tube 15 is sleeved on the lower connecting tube 16 to wrap and hide the first flat pressure bearing 7, reduce the generation of gaps, and the two tubes can further play a role in rotation limiting.

[0047] As a preferred embodiment, a mounting groove 17 is formed at the upper end of the upper rotating seat 4, and the second flat pressure bearing 8 is arranged in the mounting groove 17. The mounting groove 17 provides a position for the installation of the second flat pressure bearing 8, limits the up and down movement of the second flat pressure bearing 8, and avoids shaking and wear.

[0048] As a preferred embodiment, the rotating shaft 6 is a screw, which includes an end cap portion 18, a shaft portion 19 and a threaded portion 20 from top to bottom. A through connecting hole 21 is opened in the middle of the rotating connector 3. The screw is inserted into the connecting hole 21 of the upper rotating seat 4 and penetrates the connecting hole 21 connected to the lower rotating seat 5. The end cap portion 18 is arranged on the upper rotating seat 4 to play a positioning role to prevent the entire screw from falling out of the connecting hole 21 of the upper rotating seat 4. The threaded portion 20 is fixed on the lower rotating seat 5 and a nut 22 is provided at the end. The threaded portion 20 fixes the screw to the lower rotating seat 5. The threaded connection method is simple and easy to disassemble and assemble. The shaft portion 19 can be rotatably sleeved on the upper rotating seat 4. The surface of the shaft portion 19 is smooth, serving as a sleeve rod for the first flat pressure bearing 7 and the second flat pressure bearing 8 and the rotating shaft of the upper rotating seat 4.

[0049] As a preferred embodiment, a cap cover 23 is provided on the upper rotating seat 4 and above the end cap portion 18, and the cap cover 23 is used to close the connection hole 21 of the upper rotating seat 4. A lower cover 24 is provided on the lower rotating seat 5 and below the threaded portion 20, and the lower cover 24 is used to close the connection hole 21 of the lower rotating seat 5. The overall sealing of the rotating connector 3 is better, which prevents impurities from entering and affecting the service life, and is also more complete and beautiful.

[0050] As a preferred embodiment, the upper rotating seat 4 is circumferentially formed with a plurality of mounting ends 25, which are formed obliquely upward, and each of the mounting ends 25 is rotatably connected to a seat bracket 1, and the lower rotating seat 5 is circumferentially formed with a plurality of fixed ends 26, which are formed obliquely downward, and each of the fixed ends 26 is rotatably connected to a leg bracket 2, so that the seat bracket 1 and the leg bracket 2 can be extended and supported in all directions.

[0051] As a preferred embodiment, the seat bracket 1 includes two front support rods 27 and two rear support rods 28. The two front support rods 27 are adjacent to each other, and the two rear support rods 28 are adjacent to each other. The length of the rear support rods 28 is greater than that of the front support rods 27. The rear support rods 28 can be curved to conform to ergonomics and have better supporting performance. The chair leg bracket 2 includes a plurality of support legs 29. The upper ends of the support legs 29 are rotatably arranged on the fixed ends 26, and the lower ends are detachably provided with anti-slip foot pads 30, so that the relative friction between the support legs 29 and the ground is increased, thereby preventing relative sliding and making it safer to use.

[0052] As a preferred embodiment, the front support rod 27 and / or the back support rod 28 of the seat support 1 can be composed of multi-section rods, that is, the ends of each rod can be necked to facilitate mutual connection, so that the length of the rod after folding can be further shortened, making the folding more reasonable. When in use, release the binding force on each rod, shake each rod, and the chair frame can be easily unfolded under the elastic force of the elastic rope. The front support rod 27 and / or the back support rod 28 composed of multi-section rods can also be matched through a connecting rod, that is, one end of each connecting rod is fixed in a rod, and the other end is in a movable socket relationship with the adjacent rod. Of course, each support leg 29 of the chair leg support 2 can also be composed of multi-section rods.

[0053] As a preferred embodiment, the back leaning rod 28 includes an upper back tube 31 and a lower back tube 32 that are detachably connected. The lower back tube 32 is rotatably set on the mounting end 25. Pipe plugs 33 are set at the upper and lower ends of the back leaning rod 28. The setting of the pipe plug 33 can prevent the entry of debris on the one hand, and play a role in installation and fixing on the other hand. An elastic rope is set between the two pipe plugs 33. One end of the elastic rope is tied to the pipe plug 33 of the lower back tube 32, and the other end is tied to the pipe plug 33 of the upper back tube 31. The elastic rope has a pulling force that drives the upper back tube 31 to be inserted into the lower back tube 32, so that the installation is more secure. In the folded state, the upper back tube 31 can be removed from the lower back tube 32 for folding, and the limiting of the elastic rope can prevent the upper back tube 31 from being lost.

[0054] The utility model also provides a rotating space chair that is smoother and less likely to shake when rotating, including the above-mentioned rotating space chair frame, and also includes a seat cover that is detachably arranged on the seat support 1, the seat cover is made of soft material, such as Oxford cloth, which is strong and reliable, has strong load-bearing capacity, is waterproof and dirt-resistant, and the seat cover has the same number of cloth corners as the seat support 1, each of the cloth corners is arranged at the upper end of each seat support 1, and when in the unfolded state, the upper end of the seat support 1 is unfolded outward, and the lower end of the chair leg support 2 is stretched outward, and the seat cover can be used by setting it on the seat support 1. At this time, the edge of the seat cover is in a taut state, and the front support rod 27 and the rear support rod 28 are respectively subjected to the pulling force of the four cloth corners of the seat cover and the limiting of the mounting end 25, and cannot be flipped downward, and can maintain a stable upward open state with good load-bearing capacity; in the folded state, the seat cover is removed from the seat support 1, the lower ends of the chair leg support 2 are close to each other, and the seat support 1 is folded downward to be close to the chair leg support 2, and the storage volume is small and portable.

[0055] As a preferred embodiment, a breathable net or a storage bag is provided on the chair surface to enhance the user experience.

[0056] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotating space chair frame, characterized in that: The invention comprises a seat support (1) located at the top, a leg support (2) located at the bottom, and a rotating connection member (3) located in the middle and movably connecting the seat support (1) and the leg support (2); the rotating connection member (3) comprises an upper rotating seat (4), a lower rotating seat (5), and a rotating shaft (6) connecting the upper rotating seat (4) and the lower rotating seat (5); the lower end of the rotating shaft (6) is fixed to the lower rotating seat (5); the upper end of the rotating shaft (6) is rotatably connected to the upper rotating seat (4); the seat support (1) can be folded and arranged on the upper rotating seat (4); the leg support (2) can be folded and arranged on the lower rotating seat (5); a first flat pressure bearing (7) is arranged between the upper rotating seat (4) and the lower rotating seat (5); a second flat pressure bearing (8) is arranged between the upper rotating seat (4) and the rotating shaft (6); the first flat pressure bearing (7) and the second flat pressure bearing (8) are both sleeved on the rotating shaft (6).

2. The rotating space chair frame according to claim 1, characterized in that: The first flat pressure bearing (7) and the second flat pressure bearing (8) both comprise an upper race (9), a retaining frame (10), a steel ball (11) and a lower race (12); the steel ball (11) is arranged on the retaining frame (10) and is located between the upper race (9) and the lower race (12); the upper and lower ends of the steel ball (11) are in contact with the upper race (9) and the lower race (12) respectively; and the upper race (9) and the lower race (12) can rotate relative to each other.

3. The rotating space chair frame according to claim 2, characterized in that: An upper groove (13) is formed at the lower end of the upper rotating seat (4), and an upper seat ring (9) of the first flat pressure bearing (7) is arranged in the upper groove (13); a lower groove (14) is formed at the upper end of the lower rotating seat (5), and a lower seat ring (12) of the first flat pressure bearing (7) is arranged in the lower groove (14); an upper connecting tube (15) is also formed at the lower end of the upper rotating seat (4), and a lower connecting tube (16) is also formed at the upper end of the lower rotating seat (5); the diameter of the upper connecting tube (15) is greater than the diameter of the lower connecting tube (16), and the upper connecting tube (15) is sleeved on the lower connecting tube (16).

4. The rotating space chair frame according to claim 3 is characterized in that: The upper end of the upper rotating seat (4) is formed with a mounting groove (17), and the second flat pressure bearing (8) is arranged in the mounting groove (17).

5. A rotating space chair frame according to any one of claims 1 to 4, characterized in that: The rotating shaft (6) is a screw rod, which comprises an end cap portion (18), a rotating shaft portion (19) and a threaded portion (20) from top to bottom. A through connecting hole (21) is provided in the middle of the rotating connecting member (3). The screw rod is inserted into the connecting hole (21) of the upper rotating seat (4) and penetrates the connecting hole (21) connected to the lower rotating seat (5). The end cap portion (18) is arranged on the upper rotating seat (4), the threaded portion (20) is fixed on the lower rotating seat (5) and a nut (22) is arranged at the end thereof. The rotating shaft portion (19) is rotatably sleeved on the upper rotating seat (4).

6. The rotating space chair frame according to claim 5, characterized in that: A cap cover (23) is provided on the upper rotating seat (4) and located above the end cap portion (18), and a lower cover (24) is provided on the lower rotating seat (5) and located below the threaded portion (20).

7. A rotating space chair frame according to any one of claims 1 to 4, characterized in that: The upper rotating seat (4) is formed with a plurality of mounting ends (25) in the circumference, and each of the mounting ends (25) is rotatably connected to a seat support (1); the lower rotating seat (5) is formed with a plurality of fixed ends (26) in the circumference, and each of the fixed ends (26) is rotatably connected to a chair leg support (2).

8. The rotating space chair frame according to claim 7, characterized in that: The seat support (1) comprises a front support rod (27) and a rear support rod (28), wherein the rear support rod (28) is longer than the front support rod (27); the chair leg support (2) comprises a plurality of support legs (29), wherein the upper ends of the support legs (29) are rotatably arranged on the fixed ends (26), and the lower ends are detachably provided with anti-slip foot pads (30).

9. The rotating space chair frame according to claim 8, characterized in that: The backrest rod (28) comprises an upper back tube (31) and a lower back tube (32) which are detachably connected. The lower back tube (32) is rotatably arranged on the mounting end (25). The upper and lower ends of the backrest rod (28) are provided with tube plugs (33). An elastic rope is arranged between the two tube plugs (33). When in a folded state, the upper back tube (31) can be removed from the lower back tube (32) for folding.

10. A rotating space chair, characterized in that: It comprises a rotating space chair frame as described in any one of claims 1 to 9, and also comprises a seat surface detachably arranged on the seat support (1), and the seat surface is made of soft material.

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