Detachable swivel chair chassis

Abstract

The utility model discloses a detachable swivel chair chassis, which comprises a foot stool, a middle ring and universal wheels, the surface of the middle ring is provided with five slots which are annularly distributed at equal intervals, the inner side of the foot stool is fixedly connected with connecting blocks, and the connecting blocks are inserted into the slots. According to the swivel chair chassis, the inserting groove and the connecting block are arranged, the foot stool and the middle ring can be connected by inserting the connecting block into the inserting groove, and the foot stool and the middle ring can be separated by pulling the foot stool to move towards the outer side, so that convenient and fast disassembly is completed, and the problem that the existing swivel chair chassis is generally integrally formed and is inconvenient to disassemble is solved. The problems that the whole swivel chair chassis needs to be replaced when one foot stool is damaged, waste is caused, meanwhile, the diameter of the swivel chair chassis is produced as large as possible in order to better keep the stability of the whole swivel chair, and the swivel chair chassis is inconvenient to disassemble or move are solved, and the effect of conveniently disassembling the middle ring and the foot stools is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of swivel chairs, in particular to a detachable swivel chair chassis. Background Art

[0002] A swivel chair is a rotatable chair, which is usually used in offices, homes or schools. It can rotate freely in the horizontal direction, making it convenient for users to switch between different work areas. The swivel chair base is an important component of the swivel chair. It is usually made of metal or plastic, and is used to support the weight of the entire chair and provide a stable rotation function. However, when in use, since the existing swivel chair chassis is usually an integrated setting, when one of the legs is damaged, the entire swivel chair chassis needs to be replaced, which is relatively wasteful. At the same time, in order to better maintain the stability of the entire swivel chair, the diameter of the swivel chair chassis is produced as large as possible, so it is not convenient to disassemble or move it. Utility Model Content

[0003] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a detachable swivel chair chassis, which has the advantage of being easy to disassemble the middle ring and the foot frame, and solves the problem that the existing swivel chair chassis is usually an integrated setting, so when one of the foot frames is damaged, the entire swivel chair chassis needs to be replaced, which is relatively wasteful. At the same time, in order to better maintain the stability of the entire swivel chair, the diameter of the swivel chair chassis is produced as large as possible, so it is not convenient to disassemble or move it.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable swivel chair chassis, including a foot frame, a middle ring and a universal wheel, the foot frame is located on the outside of the middle ring, the universal wheel is fixedly installed on the outside of the bottom of the foot frame, a slot is provided on the surface of the middle ring, and the slots are five and distributed in a circular shape with equal distances, a connecting block is fixedly connected to the inner side of the foot frame, the connecting block is inserted into the inside of the slot, a limiting component is provided at the bottom of the inner wall of the slot, and a connecting component is provided at the bottom of the middle ring.

[0005] As a preferred embodiment of the utility model, the limit assembly includes a mounting groove, the inner wall of the mounting groove is movably connected to a limit block, the bottom of the connection block is provided with a limit groove, and the limit block is inserted into the inside of the limit groove.

[0006] As a preferred embodiment of the utility model, the connecting assembly includes a knob, a spring and a connecting rod, the bottom end of the spring is fixedly connected to the bottom of the inner wall of the mounting groove, the other end of the spring is fixedly connected to the bottom of the limit block, the inner wall of the spring is movably connected to the surface of the connecting rod, the top end of the connecting rod is fixedly connected to the bottom of the limit block, the other end of the connecting rod passes through the middle ring and extends to the bottom of the middle ring, the connecting rod is movably connected to the middle ring, and the bottom of the surface of the connecting rod is threadedly connected to the inner wall of the knob.

[0007] As a preferred embodiment of the utility model, the connecting assembly includes a knob, a spring and a connecting rod, the bottom end of the spring is fixedly connected to the bottom of the inner wall of the mounting groove, the other end of the spring is fixedly connected to the bottom of the limit block, the inner wall of the spring is movably connected to the surface of the connecting rod, the top end of the connecting rod is fixedly connected to the bottom of the limit block, the other end of the connecting rod passes through the middle ring and extends to the bottom of the middle ring, the connecting rod is movably connected to the middle ring, and the bottom of the surface of the connecting rod is threadedly connected to the inner wall of the knob.

[0008] As a preferred embodiment of the utility model, the connecting assembly includes a knob, a spring and a connecting rod, the bottom end of the spring is fixedly connected to the bottom of the inner wall of the mounting groove, the other end of the spring is fixedly connected to the bottom of the limit block, the inner wall of the spring is movably connected to the surface of the connecting rod, the top end of the connecting rod is fixedly connected to the bottom of the limit block, the other end of the connecting rod passes through the middle ring and extends to the bottom of the middle ring, the connecting rod is movably connected to the middle ring, and the bottom of the surface of the connecting rod is threadedly connected to the inner wall of the knob.

[0009] As a preferred embodiment of the utility model, sliding plates are fixedly connected to both sides of the limit block, sliding grooves are opened on both sides of the inner wall of the installation groove, and the outer side of the sliding plate is slidably connected to the outer side of the inner wall of the sliding groove.

[0010] As a preferred embodiment of the utility model, a pull plate is fixedly connected to one end of the connecting rod away from the supporting tube, and five pull plates are provided and distributed equidistantly in a ring shape; a reinforcement plate is fixedly connected to the surface of the middle ring, and five reinforcement plates are provided and distributed equidistantly in a ring shape; the top of the reinforcement plate fits with the bottom of the tripod.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model provides a slot and a connecting block. By inserting the connecting block into the slot, the tripod can be connected to the middle ring. By pulling the tripod to move outward, the tripod can be separated from the middle ring, thereby completing convenient disassembly. This solves the problem that the existing swivel chair chassis is usually an integrated setting, so when one of the tripods is damaged, the entire swivel chair chassis needs to be replaced, which is relatively wasteful. At the same time, in order to better maintain the stability of the entire swivel chair, the diameter of the swivel chair chassis is produced as large as possible, so it is not convenient to disassemble or move it. This achieves the effect of facilitating the separation of the middle ring and the tripod.

[0013] 2. The utility model sets a limit assembly, so that the mounting groove can limit the limit block front and back, left and right, and the limit groove can move the limit block front and back, left and right. Conversely, the front and back, left and right movement of the limit block can limit the connecting block front and back, left and right, and the front and back, left and right limiting of the connecting block can limit the tripod front and back, left and right, thereby preventing the tripod and the connecting block from detaching from the middle ring.

[0014] 3. The utility model sets a connecting component, and the spring can support the limit block, thereby preventing the limit block from being separated from the inside of the limit groove. The up and down movement of the limit block can drive the connecting rod to move up and down. The connecting rod can guide the limit block, thereby preventing the limit block from being offset and stuck in the installation groove. The knob can limit the connecting rod upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the three-dimensional exploded cross-sectional structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the middle ring of the utility model;

[0018] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the connecting block of the utility model.

[0019] In the figure: 1. tripod; 2. middle ring; 3. universal wheel; 4. slot; 5. connecting block; 6. limit assembly; 61. mounting slot; 62. limit block; 63. limit slot; 7. connecting assembly; 71. knob; 72. spring; 73. connecting rod; 8. guide rod; 9. guide slot; 10. supporting tube; 11. plug plate; 12. sliding plate; 13. sliding slot; 14. pull plate; 15. reinforcement plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 4 As shown, the utility model provides a detachable swivel chair chassis, including a tripod 1, a middle ring 2 and a universal wheel 3, the tripod 1 is located on the outside of the middle ring 2, the universal wheel 3 is fixedly installed on the outside of the bottom of the tripod 1, a slot 4 is provided on the surface of the middle ring 2, and the slots 4 are provided with five slots 4 and are distributed in a ring shape with equal distances, a connecting block 5 is fixedly connected to the inner side of the tripod 1, the connecting block 5 is inserted into the inside of the slot 4, a limiting component 6 is provided at the bottom of the inner wall of the slot 4, and a connecting component 7 is provided at the bottom of the middle ring 2.

[0022] refer to Figure 3 The limiting assembly 6 includes a mounting groove 61 , the inner wall of the mounting groove 61 is movably connected to a limiting block 62 , a limiting groove 63 is provided at the bottom of the connecting block 5 , and the limiting block 62 is inserted into the inner part of the limiting groove 63 .

[0023] As a technical optimization scheme of the utility model, by setting the limit assembly 6, the installation groove 61 can limit the limit block 62 forward, backward, left and right, and the limit groove 63 can move the limit block 62 forward, backward, left and right. Conversely, the forward, backward, left and right movement of the limit block 62 can limit the connecting block 5 forward, backward, left and right, and the forward, backward, left and right limiting of the connecting block 5 can limit the tripod 1 forward, backward, left and right, thereby preventing the tripod 1 and the connecting block 5 from detaching from the middle ring 2.

[0024] refer to Figure 3 The connecting assembly 7 includes a knob 71, a spring 72 and a connecting rod 73. The bottom end of the spring 72 is fixedly connected to the bottom of the inner wall of the mounting groove 61, the other end of the spring 72 is fixedly connected to the bottom of the limit block 62, the inner wall of the spring 72 is movably connected to the surface of the connecting rod 73, the top of the connecting rod 73 is fixedly connected to the bottom of the limit block 62, the other end of the connecting rod 73 passes through the middle ring 2 and extends to the bottom of the middle ring 2, the connecting rod 73 is movably connected to the middle ring 2, and the bottom of the surface of the connecting rod 73 is threadedly connected to the inner wall of the knob 71.

[0025] As a technical optimization solution of the utility model, by setting the connecting component 7, the spring 72 can support the limit block 62, thereby preventing the limit block 62 from being separated from the inside of the limit groove 63. The up and down movement of the limit block 62 can drive the connecting rod 73 to move up and down. The connecting rod 73 can guide the limit block 62, thereby preventing the limit block 62 from being offset and stuck in the installation groove 61. The knob 71 can limit the connecting rod 73 upward.

[0026] refer to Figure 3 and Figure 4 The connecting assembly 7 includes a knob 71, a spring 72 and a connecting rod 73. The bottom end of the spring 72 is fixedly connected to the bottom of the inner wall of the mounting groove 61, the other end of the spring 72 is fixedly connected to the bottom of the limit block 62, the inner wall of the spring 72 is movably connected to the surface of the connecting rod 73, the top of the connecting rod 73 is fixedly connected to the bottom of the limit block 62, the other end of the connecting rod 73 passes through the middle ring 2 and extends to the bottom of the middle ring 2, the connecting rod 73 is movably connected to the middle ring 2, and the bottom of the surface of the connecting rod 73 is threadedly connected to the inner wall of the knob 71.

[0027] As a technical optimization solution of the utility model, by setting a guide rod 8 and a guide groove 9, the guide groove 9 can limit the guide rod 8. Conversely, the guide rod 8 can limit the connecting block 5 and the tripod 1. The guide rod 8 is used to facilitate the user to insert the connecting block 5 into the slot 4.

[0028] refer to Figure 1 and Figure 2 The connecting assembly 7 includes a knob 71, a spring 72 and a connecting rod 73. The bottom end of the spring 72 is fixedly connected to the bottom of the inner wall of the mounting groove 61, the other end of the spring 72 is fixedly connected to the bottom of the limit block 62, the inner wall of the spring 72 is movably connected to the surface of the connecting rod 73, the top of the connecting rod 73 is fixedly connected to the bottom of the limit block 62, the other end of the connecting rod 73 passes through the middle ring 2 and extends to the bottom of the middle ring 2, the connecting rod 73 is movably connected to the middle ring 2, and the bottom of the surface of the connecting rod 73 is threadedly connected to the inner wall of the knob 71.

[0029] As a technical optimization scheme of the utility model, by setting the support tube 10 and the plug plate 11, the middle ring 2 can fix the support tube 10, the fixed limit of the support tube 10 can fix the plug plate 11, and the fixed limit of the plug plate 11 can limit the connecting block 5 front, back, left and right, thereby improving the stability of the connecting block 5 and the tripod 1.

[0030] refer to Figure 3 The two sides of the limit block 62 are fixedly connected with sliding plates 12, the two sides of the inner wall of the installation groove 61 are provided with sliding grooves 13, and the outer side of the sliding plate 12 is slidably connected with the outer side of the inner wall of the sliding groove 13.

[0031] As a technical optimization solution of the utility model, by setting the sliding plate 12 and the sliding groove 13, the up and down movement of the limit block 62 can drive the sliding plate 12 to slide up and down inside the sliding groove 13. When the top of the sliding plate 12 is in contact with the top of the inner wall of the sliding groove 13, the sliding groove 13 can limit the sliding plate 12 upward, thereby preventing the limit block 62 from detaching from the inside of the installation groove 61.

[0032] refer to Figure 2 and Figure 3 One end of the connecting rod 73 away from the supporting tube 10 is fixedly connected with a pull plate 14, and five pull plates 14 are arranged and distributed in a ring shape with equal distances. The surface of the middle ring 2 is fixedly connected with a reinforcement plate 15, and five reinforcement plates 15 are arranged and distributed in a ring shape with equal distances. The top of the reinforcement plate 15 fits with the bottom of the tripod 1.

[0033] As a technical optimization solution of the utility model, by setting a pull plate 14 and a reinforcement plate 15, the reinforcement plate 15 can fix the tripod 1, thereby improving the supporting effect of the tripod 1, and by pulling the pull plate 14, the connecting rod 73 can be driven to move downward, and the downward movement of the connecting rod 73 can drive the limit block 62 to move downward and disengage from the inside of the limit groove 63, thereby facilitating the user to pull the connecting block 5 out of the inside of the slot 4.

[0034] The working principle and use process of the utility model are as follows: during use, when it is necessary to disassemble and separate the tripod 1 and the middle ring 2, the user first removes the bolts connecting the middle ring 2 and the support tube 10 by using a tool, and then pulls the support tube 10 upward to make the plug plate 11 disengage from the middle ring 2. At this time, the limit on the top of the connecting block 5 is released, and then the connecting rod 73 is driven downward by pulling the pull plate 14. The downward movement of the connecting rod 73 can drive the limit block 62 to move downward and disengage from the inside of the limit groove 63. At this time, the limit on the bottom of the connecting block 5 is released. Finally, the user can complete the removal of the tripod 1 by pulling the tripod 1 outward to make the connecting block 5 disengage from the inside of the slot 4.

[0035] To sum up: this kind of detachable swivel chair chassis, by setting a slot 4 and a connecting block 5, the foot frame 1 can be connected to the middle ring 2 by inserting the connecting block 5 into the inside of the slot 4, and the foot frame 1 can be separated from the middle ring 2 by pulling the foot frame 1 to move outward, thereby completing convenient disassembly, and solving the problem that since the existing swivel chair chassis is usually an integrated setting, when one of the foot frames is damaged, the entire swivel chair chassis needs to be replaced, which is relatively wasteful, and at the same time, in order to better maintain the stability of the entire swivel chair, the diameter of the swivel chair chassis will be produced as large as possible, so it is not convenient to disassemble or move it.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable swivel chair chassis, comprising a foot frame (1), a middle ring (2) and universal wheels (3), characterized in that: The tripod (1) is located on the outside of the middle ring (2), the universal wheel (3) is fixedly mounted on the outside of the bottom of the tripod (1), a slot (4) is provided on the surface of the middle ring (2), five slots (4) are provided and are distributed in a circular shape at equal distances, a connecting block (5) is fixedly connected to the inside of the tripod (1), the connecting block (5) is plugged into the inside of the slot (4), a limiting component (6) is provided at the bottom of the inner wall of the slot (4), and a connecting component (7) is provided at the bottom of the middle ring (2).

2. The detachable swivel chair chassis according to claim 1, characterized in that: The limiting assembly (6) comprises a mounting groove (61), the inner wall of the mounting groove (61) is movably connected to a limiting block (62), a limiting groove (63) is provided at the bottom of the connecting block (5), and the limiting block (62) is inserted into the limiting groove (63).

3. The detachable swivel chair chassis according to claim 2, characterized in that: The connecting assembly (7) comprises a knob (71), a spring (72) and a connecting rod (73); the bottom end of the spring (72) is fixedly connected to the bottom of the inner wall of the mounting groove (61); the other end of the spring (72) is fixedly connected to the bottom of the limit block (62); the inner wall of the spring (72) is movably connected to the surface of the connecting rod (73); the top end of the connecting rod (73) is fixedly connected to the bottom of the limit block (62); the other end of the connecting rod (73) passes through the middle ring (2) and extends to the bottom of the middle ring (2); the connecting rod (73) is movably connected to the middle ring (2); and the bottom of the surface of the connecting rod (73) is threadedly connected to the inner wall of the knob (71).

4. The detachable swivel chair chassis according to claim 1, characterized in that: Two guide rods (8) are fixedly connected to the inner side of the inner wall of the slot (4), and two guide grooves (9) are provided on the inner side of the connecting block (5), and the guide rods (8) are inserted into the guide grooves (9).

5. The detachable swivel chair chassis according to claim 3, characterized in that: The top of the middle ring (2) is fixedly connected to a support tube (10) by bolts, the support tube (10) is connected to the middle ring (2), the bottom of the support tube (10) is fixedly connected to an insert plate (11), five insert plates (11) are provided and are distributed in a ring shape with equal distances, the side of the insert plate (11) away from the support tube (10) passes through the middle ring (2) and the connecting block (5) in sequence and extends to the inside of the connecting block (5), and the insert plate (11) is movably connected to the middle ring (2) and the connecting block (5).

6. The detachable swivel chair chassis according to claim 2, characterized in that: Sliding plates (12) are fixedly connected to both sides of the limit block (62), sliding grooves (13) are provided on both sides of the inner wall of the installation groove (61), and the outer side of the sliding plate (12) is slidably connected to the outer side of the inner wall of the sliding groove (13).

7. The detachable swivel chair chassis according to claim 5, characterized in that: The end of the connecting rod (73) away from the supporting tube (10) is fixedly connected to a pull plate (14), and five pull plates (14) are arranged and are distributed in a ring shape at equal distances. The surface of the middle ring (2) is fixedly connected to a reinforcement plate (15), and five reinforcement plates (15) are arranged and are distributed in a ring shape at equal distances. The top of the reinforcement plate (15) fits with the bottom of the tripod (1).

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