Butterfly chair

Abstract

The utility model relates to the technical field of home furnishing, and discloses a butterfly chair which comprises a sleeve joint, the upper end of the sleeve joint is fixedly connected with second upper connecting pipes, an upper elbow joint is fixedly connected between every two adjacent second upper connecting pipes, the lower end of the sleeve joint is fixedly connected with a first lower connecting pipe, and the lower end of the sleeve joint is fixedly connected with a second lower connecting pipe. The other end of the first lower connecting pipe is fixedly connected with a lower elbow connector, the other end of the lower elbow connector is fixedly connected with a second lower connecting pipe, the other end of the second lower connecting pipe is fixedly connected with one end of a second upper connecting pipe through a sleeving connector, and the upper end of the sleeving connector on the left side is fixedly connected with a first upper connecting pipe. According to the utility model, a full steel pipe structure is adopted, full disassembly and assembly are realized by using the sleeve joint, the lower elbow joint and the upper elbow joint, the occupied space is greatly reduced after disassembly, the carrying and mailing are convenient, all pipe fittings are stably and firmly connected by adopting the sleeve joint, the gravity is dispersed, and the risk of breakage is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of home furnishings, in particular to a butterfly chair. Background Art

[0002] The butterfly chair, with its simple lines, unique shape and practical functions, embodies the principles of modernist design, such as emphasizing that form follows function and pursuing simple and pure aesthetics, and has had a profound impact on modern furniture design. The cloth iron butterfly chair is ergonomic, comfortable to use, and comes in a variety of styles. The cloth iron and plastic structures are convenient for storage but easy to break, while the cloth iron overall structure is relatively sturdy and durable but is too large and heavy to be carried outside.

[0003] After searching, Chinese patent publication number: CN202653622U discloses a folding chair, particularly a folding recliner, which is composed of a pair of butterfly frames and a cloth cover, each butterfly frame has one long and one short butterfly wing, and the pair of butterfly frames are staggered with each other; the two long wings and the two short wings each occupy a corresponding side; the adjacent sides of the two long wings are staggered, and the adjacent sides of the two short wings are staggered, and each crossed side is movably connected by a connecting ring; the butterfly frame is composed of four pipe fittings and connecting parts and is spliced ​​in sequence; the root connection of the butterfly frame is provided with a supporting foot; the two ends of the cloth cover are respectively covered on the wing tips of the two long wings and the wing tips of the two short wings. The invention purpose of this utility model is to provide a butterfly chair that is very convenient to use and can be folded to form several upright poles for easy carrying. At the same time, when unfolded, it is shaped like a butterfly, with beautiful and generous appearance. The above structure does not take into account the inconvenience of disassembly and assembly, resulting in inconvenience in storage and transportation, and trouble in cleaning and maintenance. Utility Model Content

[0004] In order to make up for the above shortcomings, the present invention provides a butterfly chair, which aims to improve the problem in the prior art that the butterfly chair is difficult to disassemble and assemble, resulting in inconvenience in storage and transportation, and trouble in cleaning and maintenance.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a butterfly chair, including a sleeve joint, the upper end of the sleeve joint is fixedly connected to the upper connecting tube 2, the two adjacent upper connecting tubes 2 are fixedly connected with an upper bent tube joint, the lower end of the sleeve joint is fixedly connected to the lower connecting tube 1, the other end of the lower connecting tube 1 is fixedly connected to the lower bent tube joint, the other end of the lower bent tube joint is fixedly connected to the lower connecting tube 2, the other end of the lower connecting tube 2 is fixedly connected to one end of the upper connecting tube 2 through the sleeve joint, the upper end of the left sleeve joint is fixedly connected to the upper connecting tube 1, the other end of the upper connecting tube 1 is fixedly connected to the long connecting tube 1 through the upper bent tube joint, the lower end of the left sleeve joint is fixedly connected to the lower connecting tube 3, the other end of the lower connecting tube 3 is fixedly connected to the long connecting tube 2 through the lower bent tube joint, and the outer wall of the sleeve joint is provided with a positioning mechanism, which is used to position the installation length.

[0006] Through the above technical solution: the sleeve plays a key connecting hub role in the structural construction of the entire chair. The upper end of the sleeve is firmly fixedly connected to the upper connecting tube 2, and the two upper connecting tubes 2 are fixedly connected at adjacent positions through the upper bent tube joint. The upper bent tube joint makes the connection between the upper connecting tubes 2 more stable and meets the requirements of ergonomics and aesthetics. The lower end of the sleeve is fixedly connected to the lower connecting tube 1, and the other end of the lower connecting tube 1 is stably fixedly connected to the lower bent tube joint. The lower bent tube joint is further connected to the lower connecting tube 2, and the other end of the lower connecting tube 2 is fixedly connected to one end of the upper connecting tube 2 again with the help of the sleeve, forming a circular and stable frame structure. The upper connecting tube 1 is also fixedly connected to the upper end of the left sleeve of the chair. The other end of the upper connecting tube 1 is fixedly connected to the long connecting tube 1 through the upper bent tube joint. The lower end of the left sleeve is fixedly connected to the lower connecting tube 3. The other end of the lower connecting tube 3 is fixedly connected to the long connecting tube 2 through the lower bent tube joint. The long connecting tube 2 and the long connecting tube 1 cooperate with each other to jointly construct the left support and external contour of the butterfly chair.

[0007] As a further description of the above technical solution:

[0008] The positioning mechanism includes an opening, which is opened on the outer wall of the sleeve joint. The inner wall of the opening is rotatably connected to a concave block. A threaded groove is opened on the outer wall of the concave block. A matching hole is opened on the left end of the outer wall of the lower connecting tube one. A sleeve is rotatably connected to the middle part of the outer wall of the lower connecting tube one. The left end of the outer wall of the lower connecting tube one is fixedly connected to the limiting block two.

[0009] Through the above technical solution: the opening plays the role of providing basic connection and activity space, the opening is precisely opened on the outer wall of the sleeve, and the inner wall of the opening cooperates with the concave block in a rotational connection manner. The concave block can flexibly rotate in the opening, providing adjustability for subsequent positioning operations, and a threaded groove is opened on the outer wall of the concave block, and a matching hole is opened on the left end of the outer wall of the lower connecting tube one. The shape and size of the matching hole are adapted to the concave block. When the concave block is rotated to a specific position, it can be accurately embedded in the matching hole, thereby realizing the length positioning of the lower connecting tube one relative to the sleeve joint, and a sleeve is rotatably connected to the middle part of the outer wall of the lower connecting tube one. The rotational connection between the sleeve and the lower connecting tube one is smooth and stable, and the sleeve can rotate freely around the lower connecting tube one. The left end of the outer wall of the lower connecting tube one is also fixedly connected to a limit block two, and the limit block two can effectively limit the movement range of the sleeve, so that during the installation process of the butterfly chair, the installation length of each pipe can be determined efficiently and accurately based on the coordinated effect of these components, thereby ensuring the stability and integrity of the entire butterfly chair structure.

[0010] As a further description of the above technical solution:

[0011] The top of the lower elbow joint is fixedly connected with a screw rod, and the outer wall of the screw rod is threadedly connected with a nut.

[0012] Through the above technical solution: the top of the lower bend pipe joint is firmly fixed with a screw, the screw is perpendicular to the top plane of the lower bend pipe joint, and the outer wall of the screw is processed with precise threads, which can achieve a tight and stable threaded connection with the nut.

[0013] As a further description of the above technical solution:

[0014] A sphere is fixedly connected to the bottom surface of the nut, a contact foot is slidably connected to the outer wall of the sphere, and an anti-slip pad is fixedly connected to the bottom surface of the contact foot.

[0015] Through the above technical solution: a sphere is fixedly connected to the center position of the bottom surface of the nut, and the surface of the sphere is smooth and round to ensure that it can smoothly rotate and slide at multiple angles during the sliding connection with the contact foot. The inside of the contact foot has a spherical groove adapted to the sphere, so that the sphere can slide and rotate freely in the groove, thereby realizing multi-directional flexible adjustment of the contact foot relative to the screw. The bottom surface of the contact foot is tightly fixed with an anti-slip pad, which can effectively increase the friction with the ground, prevent the butterfly chair from accidentally sliding and displacing during use, and further improve the stability and safety of the chair.

[0016] As a further description of the above technical solution:

[0017] The inner wall of the second long connecting tube is fixedly connected with a rotating column, and the middle part of the rotating column is fixedly connected with a connecting column.

[0018] Through the above technical solution: a rotating column is fixedly connected to a specific position on the inner wall of the long connecting tube 2, the rotating column is firmly connected to the inner wall of the long connecting tube 2 and is coaxial, a connecting column is fixedly connected to the middle part of the rotating column laterally, and both ends of the connecting column are vertically connected to the rotating column respectively, playing a key connecting and supporting role inside the long connecting tube 2.

[0019] As a further description of the above technical solution:

[0020] One end of the long connecting pipe is fixedly connected to a sleeve, and an outer wall of the sleeve is provided with a recess.

[0021] Through the above technical solution: one end of the long connecting pipe is fixedly connected to the sleeve in a stable and reliable manner, the diameter of the sleeve is adapted to the long connecting pipe, and the two are closely connected to ensure the integrity of the structure. The outer wall of the sleeve is carefully provided with a clearance groove to ensure that the connecting column can be displaced smoothly and unobstructed when passing through the sleeve. At the same time, the clearance groove also provides the necessary space for the connecting column to move within a specific range.

[0022] As a further description of the above technical solution:

[0023] Both ends of the connecting column pass through the sleeve and are fixedly connected to the limiting block 1, and the outer wall of the upper elbow joint is clamped with a cloth surface.

[0024] Through the above technical solution: both ends of the connecting column accurately pass through the sleeve, and are fixedly connected to a limiting block 1 at both ends. The limiting block 1 effectively prevents the connecting column from accidentally falling out of the sleeve, ensuring the stability and reliability of the entire connection structure. The outer wall of the upper bend pipe joint is tightly connected to the cloth surface in a snap-fit ​​manner. The cloth surface material is soft and has good toughness and wear resistance. The snap-fitting part with the upper bend pipe joint has been specially treated, which can not only ensure that the cloth surface will not fall off easily during use, but also make the cloth surface fit smoothly on the pipe joint, providing users with a comfortable contact experience, but also giving the butterfly chair a beautiful appearance design.

[0025] As a further description of the above technical solution:

[0026] An anti-slip groove is provided on the outer wall of the sleeve, and the outer wall of the left end of the concave block is engaged with the inner wall of the matching hole.

[0027] Through the above technical solution: the outer wall of the sleeve is evenly provided with anti-slip grooves, which increase the friction of the outer surface of the sleeve, and can hold the sleeve more firmly, avoiding operational errors caused by hand slippage, and improving the accuracy and convenience of operation. When the concave block is rotated to the appropriate position, the outer wall of the left end can be embedded in the inner wall of the matching hole, thereby realizing the precise definition of the connection length of the relevant pipe fittings. This locking method has good stability and repeatability, and can always maintain accurate positioning effect during multiple installation and disassembly of the butterfly chair, ensuring the consistency and reliability of the overall structure of the butterfly chair.

[0028] The utility model has the following beneficial effects:

[0029] 1. In the present invention, a full steel pipe structure is adopted, and full disassembly and assembly are achieved by means of sleeve joints, lower elbow joints and upper elbow joints. The steel pipe has high strength and rigidity and can withstand greater pressure and weight. Even when used frequently or by multiple people, it is not easy to be deformed or damaged, thereby ensuring the structural stability and safety of the butterfly chair. After disassembly, the fully disassembled butterfly chair can compactly store its various components together, greatly reducing the space occupied and making it convenient to carry, mail and carry. The various pipe fittings are stably and firmly connected by sleeve joints, and the gravity is dispersed, greatly reducing the risk of breakage.

[0030] 2. In the present invention, the concave block is connected by rotation in the open hole. When the lower connecting pipe is inserted into the inner wall of the sleeve joint, one end of the lower connecting pipe presses against the right end of the concave block to rotate the concave block. At this time, the right end of the concave block is inserted into the matching hole to achieve length positioning. Then the sleeve is rotated to the outer wall of the concave block so that the inner wall of the sleeve is threadedly connected to the inner wall of the concave block to achieve fixation. This can ensure the precise connection of each steel pipe component and improve installation efficiency and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a front perspective view of a butterfly chair proposed in the present invention;

[0032] Figure 2 This is a partial structural diagram of the lower connecting pipe 1 of a butterfly chair proposed in the present invention;

[0033] Figure 3 This is a partial structural breakdown diagram of the concave block of a butterfly chair proposed in the present invention;

[0034] Figure 4 This is a diagram showing the partial structure of a butterfly chair sphere proposed in the present invention;

[0035] Figure 5 This is a schematic diagram of the partial structure of a butterfly chair sleeve proposed in the present invention.

[0036] Legend:

[0037] 1. Sleeve joint; 2. Positioning mechanism; 201. Opening; 202. Concave block; 203. Threaded groove; 204. Matching hole; 205. Sleeve; 206. Limit block 2; 3. Lower connecting pipe 1; 4. Lower elbow joint; 5. Lower connecting pipe 2; 6. Upper connecting pipe 1; 7. Long connecting pipe 1; 8. Upper connecting pipe 2; 9. Lower connecting pipe 3; 10. Long connecting pipe 2; 11. Upper elbow joint; 12. Cloth; 13. Anti-slip groove; 14. Screw; 15. Nut; 16. Ball; 17. Contact foot; 18. Anti-slip pad; 19. Sleeve; 20. Gap groove; 21. Connecting column; 22. Rotating column; 23. Limit block 1. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0039] Please see the attached Figure 1 - Attachment Figure 3 , the utility model provides an embodiment: a butterfly chair, including a sleeve joint 1, the upper end of the sleeve joint 1 is fixedly connected to the upper connecting tube 2 8, the two adjacent upper connecting tubes 2 8 are fixedly connected with an upper elbow joint 11, the lower end of the sleeve joint 1 is fixedly connected to the lower connecting tube 1 3, the other end of the lower connecting tube 1 3 is fixedly connected to the lower elbow joint 4, the other end of the lower elbow joint 4 is fixedly connected to the lower connecting tube 2 5, the other end of the lower connecting tube 2 5 is fixedly connected to one end of the upper connecting tube 2 8 through the sleeve joint 1, the upper end of the left sleeve joint 1 is fixedly connected to the upper connecting tube 1 6, the other end of the upper connecting tube 1 6 is fixedly connected to the long connecting tube 1 7 through the upper elbow joint 11, the lower end of the left sleeve joint 1 is fixedly connected to the lower connecting tube 3 9, the other end of the lower connecting tube 3 9 is fixedly connected to the long connecting tube 2 10 through the lower elbow joint 4, the outer wall of the sleeve joint 1 is provided with a positioning mechanism 2, the positioning mechanism 2 is used to position the installation length;

[0040] Specifically, the sleeve joint 1 plays a key role in the structural construction of the entire chair. The upper end of the sleeve joint 1 is firmly fixedly connected to the upper connecting pipe 2 8, and the two upper connecting pipes 2 8 are fixedly connected at adjacent positions through the upper elbow joint 11. The upper elbow joint 11 makes the connection between the upper connecting pipes 2 8 more stable and meets the requirements of ergonomics and aesthetics. The lower end of the sleeve joint 1 is fixedly connected to the lower connecting pipe 1 3, and the other end of the lower connecting pipe 1 3 is stably fixedly connected to the lower elbow joint 4. The lower elbow joint 4 is further connected to the lower connecting pipe 2 5, and the lower connecting pipe 2 The other end of the connecting pipe 2 5 is fixedly connected to one end of the upper connecting pipe 2 8 again with the help of the sleeve joint 1, forming a circular and stable frame structure. The upper connecting pipe 1 6 is also fixedly connected to the upper end of the left sleeve joint 1 of the chair. The other end of the upper connecting pipe 1 6 is fixedly connected to the long connecting pipe 1 7 through the upper bend pipe joint 11. The lower end of the left sleeve joint 1 is fixedly connected to the lower connecting pipe 3 9. The other end of the lower connecting pipe 3 9 is fixedly connected to the long connecting pipe 2 10 via the lower bend pipe joint 4. The long connecting pipe 2 10 and the long connecting pipe 1 7 cooperate with each other to jointly construct the left support and outer contour of the butterfly chair.

[0041] Please see the attached Figure 2 - Attachment Figure 4 The positioning mechanism 2 includes an opening 201, which is provided on the outer wall of the socket 1. The inner wall of the opening 201 is rotatably connected to a concave block 202. A threaded groove 203 is provided on the outer wall of the concave block 202. A matching hole 204 is provided on the left end of the outer wall of the lower connecting tube 3. A sleeve 205 is rotatably connected to the middle of the outer wall of the lower connecting tube 3. The left end of the outer wall of the lower connecting tube 3 is fixedly connected to a limiting block 206.

[0042] Specifically, the opening 201 plays the role of providing basic connection and activity space. The opening 201 is precisely opened on the outer wall of the socket 1. The inner wall of the opening 201 cooperates with the concave block 202 in a rotational connection. The concave block 202 can be flexibly rotated in the opening 201, providing adjustability for subsequent positioning operations. The outer wall of the concave block 202 is provided with a threaded groove 203.

[0043] A matching hole 204 is provided at the left end of the outer wall of the lower connecting tube 3. The shape and size of the matching hole 204 are adapted to the concave block 202. When the concave block 202 is rotated to a specific position, it can be accurately embedded in the matching hole 204, thereby realizing the length positioning of the lower connecting tube 3 relative to the sleeve joint 1. A sleeve 205 is rotatably connected to the middle part of the outer wall of the lower connecting tube 3. The rotational connection between the sleeve 205 and the lower connecting tube 3 is smooth and stable. The sleeve 205 can rotate freely around the lower connecting tube 3. The left end of the outer wall of the lower connecting tube 3 is also fixedly connected to a limit block 206. The limit block 206 can effectively limit the moving range of the sleeve 205, so that the butterfly chair can determine the installation length of each pipe efficiently and accurately based on the coordinated effect of these components during the installation process, thereby ensuring the stability and integrity of the entire butterfly chair structure.

[0044] Please see the attached Figure 2 - Attachment Figure 5 The top of the lower elbow joint 4 is fixedly connected to a screw 14, the outer wall of the screw 14 is threadedly connected to a nut 15, the bottom surface of the nut 15 is fixedly connected to a ball 16, the outer wall of the ball 16 is slidably connected to a contact foot 17, the bottom surface of the contact foot 17 is fixedly connected to an anti-slip pad 18, the inner wall of the long connecting pipe 10 is fixedly connected to a rotating column 22, and the middle part of the rotating column 22 is fixedly connected to a connecting column 21;

[0045] Specifically, the top of the lower elbow joint 4 is firmly fixedly connected with a screw 14, the screw 14 is perpendicular to the top plane of the lower elbow joint 4, the outer wall of the screw 14 is processed with a precise thread, which can achieve a tight and stable threaded connection with the nut 15, and the center position of the bottom surface of the nut 15 is fixedly connected with a ball 16. The surface of the ball 16 is smooth and rounded to ensure that it can smoothly rotate and slide at multiple angles during the sliding connection with the contact foot 17. The contact foot 17 has a spherical groove adapted to the ball 16, so that the ball 16 can slide and rotate freely in the groove, thereby realizing the relative movement of the contact foot 17 Due to the multi-directional flexible adjustment of the screw 14, the bottom surface of the contact foot 17 is tightly fixedly connected with the anti-slip pad 18, which can effectively increase the friction with the ground and prevent the butterfly chair from accidentally sliding and displacing during use, further improving the stability and safety of the chair. A rotating column 22 is fixedly connected to a specific position on the inner wall of the long connecting tube 10. The rotating column 22 is firmly connected to the inner wall of the long connecting tube 10 and is coaxial. A connecting column 21 is fixedly connected to the middle part of the rotating column 22 laterally, and the two ends of the connecting column 21 are respectively vertically connected to the rotating column 22, playing a key connecting and supporting role inside the long connecting tube 10.

[0046] Please see the attached Figure 3 - Attachment Figure 5One end of the long connecting pipe 7 is fixedly connected to the sleeve 19, and the outer wall of the sleeve 19 is provided with a clearance groove 20. Both ends of the connecting column 21 pass through the sleeve 19 and are fixedly connected to the limit block 23. The outer wall of the upper elbow joint 11 is engaged with the cloth surface 12, the outer wall of the sleeve 205 is provided with an anti-slip groove 13, and the outer wall of the left end of the concave block 202 is engaged with the inner wall of the matching hole 204;

[0047] Specifically, one end of the long connecting pipe 7 is fixedly connected to the sleeve 19 in a stable and reliable manner. The diameter of the sleeve 19 is adapted to the long connecting pipe 7, and the two are closely connected to ensure the integrity of the structure. The outer wall of the sleeve 19 is carefully provided with a clearance groove 20. The clearance groove 20 is to ensure that the connecting column 21 can be displaced smoothly and unimpeded when passing through the sleeve 19. At the same time, the clearance groove 20 also provides the necessary space for the movement of the connecting column 21 within a specific range. The two ends of the connecting column 21 accurately pass through the sleeve 19 and are fixedly connected to the limiting blocks 23 at both ends. The limiting blocks 23 effectively prevent the connecting column 21 from accidentally falling out of the sleeve 19, ensuring the stability and reliability of the entire connection structure. The outer wall of the upper elbow joint 11 is tightly connected to the cloth surface 12 in a snap-fit ​​manner. The cloth surface 12 is soft and has good toughness and wear resistance. It is in good contact with the upper elbow joint 11. The snap-fitting parts have been specially treated to ensure that the cloth 12 will not fall off easily during use, and to make the cloth 12 fit smoothly on the pipe joint, providing users with a comfortable contact experience. At the same time, it also gives the butterfly chair a beautiful appearance design. The outer wall of the sleeve 205 is evenly provided with anti-slip grooves 13. The anti-slip grooves 13 increase the friction of the outer surface of the sleeve 205, which can hold the sleeve 205 more firmly, avoiding operational errors caused by hand slippage, and improving the accuracy and convenience of operation. When the concave block 202 is rotated to the appropriate position, the outer wall of the left end can be embedded in the inner wall of the matching hole 204, thereby realizing the precise definition of the connection length of the relevant pipe fittings. This snap-fitting method has good stability and repeatability, and can always maintain accurate positioning effect during multiple installation and disassembly of the butterfly chair, thereby ensuring the consistency and reliability of the overall structure of the butterfly chair.

[0048] Working Principle: The butterfly chair adopts an all-steel pipe structure and is fully disassembled and assembled using the sleeve joint 1, the lower elbow joint 4, and the upper elbow joint 11. The steel pipe has high strength and rigidity and can withstand high pressure and weight. Even under frequent use and with multiple people, it is not easy to deform or damage, ensuring the structural stability and safety of the butterfly chair. After disassembly, the various components of the fully disassembled butterfly chair can be compactly stored together, greatly reducing the space occupied and facilitating transportation, mailing, and carrying. The various pipes are connected stably and firmly using the sleeve joint 1, and the gravity is dispersed, greatly reducing the risk of breakage.

[0049] The concave block 202 is rotated and connected in the opening 201. When the lower connecting pipe 3 is inserted into the inner wall of the sleeve joint 1, one end of the lower connecting pipe 3 presses against the right end of the concave block 202 to rotate the concave block 202. At this time, the right end of the concave block 202 is stuck into the matching hole 204 to achieve length positioning. Then the sleeve 205 is rotated to the outer wall of the concave block 202, so that the inner wall of the sleeve 205 is threadedly connected to the inner wall of the concave block 202 to achieve fixation, which can ensure the precise connection of each steel pipe component and improve installation efficiency and convenience.

[0050] 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 replacements for some of the technical features therein. Any modifications, equivalent replacements, 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 butterfly chair, comprising a sleeve joint (1), characterized in that: The upper end of the sleeve joint (1) is fixedly connected to the upper connecting pipe 2 (8), and the upper elbow joint (11) is fixedly connected between the two adjacent upper connecting pipes 2 (8). The lower end of the sleeve joint (1) is fixedly connected to the lower connecting pipe 1 (3), and the other end of the lower connecting pipe 1 (3) is fixedly connected to the lower elbow joint (4). The other end of the lower elbow joint (4) is fixedly connected to the lower connecting pipe 2 (5), and the other end of the lower connecting pipe 2 (5) is fixedly connected to one end of the upper connecting pipe 2 (8) through the sleeve joint (1). The upper end of the sleeve joint (1) on the left side is fixedly connected to an upper connecting pipe (6), and the other end of the upper connecting pipe (6) is fixedly connected to a long connecting pipe (7) via an upper elbow joint (11). The lower end of the sleeve joint (1) on the left side is fixedly connected to a lower connecting pipe (9), and the other end of the lower connecting pipe (9) is fixedly connected to a long connecting pipe (10) via a lower elbow joint (4). A positioning mechanism (2) is provided on the outer wall of the sleeve joint (1), and the positioning mechanism (2) is used to position the installation length.

2. The butterfly chair according to claim 1, characterized in that: The positioning mechanism (2) comprises an opening (201), the opening (201) being provided on the outer wall of the sleeve (1), the inner wall of the opening (201) being rotatably connected to a concave block (202), the outer wall of the concave block (202) being provided with a threaded groove (203), a matching hole (204) being provided at the left end of the outer wall of the lower connecting tube (3), a sleeve (205) being rotatably connected to the middle of the outer wall of the lower connecting tube (3), and a limit block (206) being fixedly connected to the left end of the outer wall of the lower connecting tube (3).

3. The butterfly chair according to claim 1, characterized in that: A screw rod (14) is fixedly connected to the top of the lower elbow joint (4), and a nut (15) is threadedly connected to the outer wall of the screw rod (14).

4. The butterfly chair according to claim 3, characterized in that: The bottom surface of the nut (15) is fixedly connected to a sphere (16), the outer wall of the sphere (16) is slidably connected to a contact foot (17), and the bottom surface of the contact foot (17) is fixedly connected to an anti-slip pad (18).

5. The butterfly chair according to claim 1, characterized in that: The inner wall of the second long connecting pipe (10) is fixedly connected to a rotating column (22), and the middle part of the rotating column (22) is fixedly connected to a connecting column (21).

6. The butterfly chair according to claim 1, characterized in that: One end of the long connecting pipe (7) is fixedly connected to a sleeve (19), and an outer wall of the sleeve (19) is provided with a clearance groove (20).

7. The butterfly chair according to claim 5, characterized in that: Both ends of the connecting column (21) pass through the sleeve (19) and are fixedly connected to a limiting block (23). The outer wall of the upper elbow joint (11) is engaged with a cloth surface (12).

8. The butterfly chair according to claim 2, characterized in that: The outer wall of the sleeve (205) is provided with an anti-slip groove (13), and the outer wall of the left end of the concave block (202) is engaged with the inner wall of the matching hole (204).

Images