Five-claw disc structure for seat

Abstract

The utility model relates to the technical field of seat accessories, and discloses a five-claw disc structure for a seat, which comprises a connecting sleeve, a support leg is fixedly mounted on the arc-shaped outer wall of the connecting sleeve, an abutting mechanism is arranged on the inner surface of the connecting sleeve, and the support leg is fixedly mounted on the arc-shaped outer wall of the connecting sleeve. The abutting mechanism comprises a square edge, a rotating rod, an abutting plate, a volute spiral spring, an anti-skid belt and an arc-shaped groove. By arranging the abutting mechanism and matching with the elastic force of the volute spiral spring, the abutting plate is tightly attached to the outer surface of the stool rotating shaft, at the moment, due to the fact that the bottom end of the inserting rod is pushed by the ground and matched with the supporting plate, outward pushing force is generated on the abutting plate, and the abutting plate is kept in the abutting state with the stool rotating shaft; the anti-skid belt and the arc-shaped groove which are arranged in a triangular shape are matched, so that the situation that the stool rotating shaft is not prone to disengagement in the vertical direction after being inserted into the connecting sleeve is avoided, and it is guaranteed that the stool can keep a stable working state after being assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of seat accessories, in particular to a five-claw plate structure for a seat. Background Art

[0002] In office places, office chairs are mostly used, and the most common office chairs use a five-claw plate as the chassis. Some five-claw plates are used with rollers so that the office chair can slide, while some five-claw plates are directly positioned on the ground to ensure the stability of the stool and facilitate people's work.

[0003] The existing five-claw seat plate is usually placed directly on the ground when in use, and the columnar hydraulic rod at the bottom of the seat is inserted into the socket at the center of the five-claw seat plate for installation, so that the seat can be rotated on the ground based on the five-claw seat plate, thereby improving the practicality of the seat.

[0004] However, in actual use of the above-mentioned equipment, since the bottom columnar connecting part of the hydraulic cylinder needs to be inserted into the through hole at the center of the five-claw plate during assembly, the stability of the seat and the normal disassembly and assembly both rely on the connection at this part. In the prior art, only a threaded sleeve is used to cover the top of the through hole after insertion. When the seat is skewed, it may still cause displacement or damage between the inner wall of the through hole and the columnar connecting part, thus affecting the service life of the seat. In view of this, we propose a five-claw plate structure for seats. Utility Model Content

[0005] The purpose of the utility model is to provide a five-claw plate structure for a seat to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a five-claw plate structure for a seat, comprising a connecting sleeve, a supporting foot is fixedly installed on the arc-shaped outer wall of the connecting sleeve, and a tightening mechanism is provided on the inner surface of the connecting sleeve, and the tightening mechanism comprises:

[0007] A square edge is fixedly mounted on the arc-shaped inner wall of the connecting sleeve;

[0008] A rotating rod, the inner wall of the square edge is rotatably mounted with the rotating rod, the rotating rod is penetrated by a clamping plate, and the clamping plate is fixedly connected to the rotating rod, and a spiral spring is sleeved on the arc-shaped outer wall of the rotating rod;

[0009] Anti-skid belt: the side wall of the abutting plate is provided with an anti-skid belt, and an arc groove is opened on the outer surface of the anti-skid belt.

[0010] Preferably, the number of the supporting feet is five groups, and the five groups of supporting feet are evenly distributed in a circular array on the arc-shaped outer wall of the connecting sleeve, the number of the clamping mechanisms is five groups, and the five groups of clamping mechanisms are evenly distributed in a circular array on the arc-shaped inner wall of the connecting sleeve, and the five groups of clamping mechanisms are spaced apart from the five groups of supporting feet, thereby maximizing the stable support of the supporting feet to the connecting sleeve and the rotating shaft of the seat arranged inside it.

[0011] Preferably, the inner wall of the square edge is provided with a swing groove with the same width as the width of the clamping plate, so as to facilitate the clamping plate to rotate inside the swing groove with the rotating rod as the rotation center.

[0012] Preferably, the abutment plate is made of two metal plates whose connecting parts are arranged at an obtuse angle, so that the bottom end of the abutment plate can be in close contact with the surface of the rotating shaft inserted into the connecting sleeve when the rotating rod rotates.

[0013] Preferably, the anti-slip belt is arranged in a triangular shape, and the arc groove is opened on the inclined surface of the anti-slip belt to enhance the anti-slip belt's pressing and blocking effect on the surface of the rotating shaft.

[0014] Preferably, a pushing structure is provided inside the square edge, and the pushing structure includes an insertion rod, the inner wall of the square edge is slidably mounted with the insertion rod, the insertion rod passes through a square plate, and the square plate is fixedly connected to the insertion rod, a return spring is fixedly connected to the upper surface of the square plate, the outer wall of the insertion rod is hinged with a support plate, a straight groove is provided on the inner wall of one end of the support plate away from the insertion rod, and a round rod is fixedly mounted on the side wall of the clamping plate.

[0015] Compared with the prior art, the utility model provides a five-claw plate structure for a seat, which has the following

[0016] Beneficial effects:

[0017] 1. The seat adopts a five-claw plate structure, which is provided with a clamping mechanism and the elastic force of the spiral spring, so that the clamping plate is tightly attached to the outer surface of the seat bench rotating shaft. At this time, due to the push of the ground on the bottom end of the insertion rod, the support plate is cooperated to generate an outward thrust on the clamping plate, so that the clamping plate remains in a clamped state with the seat bench rotating shaft, and the anti-skid belt and arc groove arranged in a triangular shape are cooperated to prevent the seat bench rotating shaft from easily detaching in the vertical direction after being inserted into the interior of the connecting sleeve, thereby ensuring that the seat bench can maintain a stable working state after being assembled.

[0018] 2. The seat uses a five-claw plate structure and is provided with a pushing structure. When the five-claw plate is assembled and placed on the ground, the thrust of the ground on the bottom end of the insertion rod drives the support plate to generate a thrust on the clamping plate, pushing it toward the center of the connecting sleeve, thereby causing it to tightly restrict the seat rotation shaft entering the connecting sleeve. When disassembly is required, it is only necessary to pull the insertion rod outward to cooperate with the support plate and the round rod to cause the clamping plate to deflect toward the swing groove, so as to cause the clamping plate to disengage from the seat rotation shaft, so as to facilitate the staff to disassemble the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the connecting sleeve of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting sleeve of the utility model;

[0022] Figure 4 It is a partial three-dimensional schematic diagram of the tightening mechanism of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping plate of the utility model.

[0024] In the figure: 1. connecting sleeve; 2. supporting foot; 3. square edge; 4. rotating rod; 5. clamping plate; 6. scroll spring; 7. anti-slip belt; 8. arc groove; 9. plug rod; 10. square plate; 11. reset spring; 12. supporting plate; 13. straight notch; 14. round rod. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a five-claw plate structure for a seat, including a connecting sleeve 1, a supporting foot 2 is fixedly installed on the arc-shaped outer wall of the connecting sleeve 1, and a tightening mechanism is provided on the inner surface of the connecting sleeve 1, and the tightening mechanism includes a square edge 3, a rotating rod 4, a tightening plate 5, a spiral spring 6, an anti-slip belt 7 and an arc-shaped groove 8.

[0026] In one embodiment of the utility model, a square edge 3 is fixedly installed on the arc-shaped inner wall of the connecting sleeve 1, a rotating rod 4 is rotatably installed on the inner wall of the square edge 3, a clamping plate 5 passes through the rotating rod 4, and the clamping plate 5 is fixedly connected to the rotating rod 4, a volute spring 6 is sleeved on the arc-shaped outer wall of the rotating rod 4, an anti-slip belt 7 is provided on the side wall of the clamping plate 5, and an arc-shaped groove 8 is opened on the outer surface of the anti-slip belt 7.

[0027] Furthermore, the number of supporting feet 2 is set to five groups, and the five groups of supporting feet 2 are evenly distributed in a circular array on the arc-shaped outer wall of the connecting sleeve 1, and the supporting feet 2 are pressed and formed by carbon steel plates or stainless steel. In addition, a non-slip plastic pad is provided on the lower surface of the end of the supporting foot 2 away from the connecting sleeve 1, and the supporting foot 2 and the connecting sleeve 1 are fixed by laser welding. At the same time, the center of the connecting sleeve 1 is hollow to facilitate the installation of the rotating shaft of the stool. Specifically, the number of clamping mechanisms is set to five groups, and the five groups of clamping mechanisms are evenly distributed in a circular array on the arc-shaped inner wall of the connecting sleeve 1, and the five groups of clamping mechanisms are spaced apart from the five groups of supporting feet 2, thereby maximizing the stable support of the supporting feet 2 to the connecting sleeve 1 and the rotating shaft of the stool arranged therein, so that no matter what angle the connecting sleeve 1 is tilted to, it will not cause a large deformation of the connecting sleeve 1, affecting the safe use of the stool.

[0028] In addition, the inner wall of the square edge 3 is provided with a swing groove with the same width as the clamping plate 5, so that the clamping plate 5 can rotate inside the swing groove with the rotating rod 4 as the rotation center. At the same time, the clamping plate 5 is made of two metal plates with obtuse connecting parts, so that the bottom end of the clamping plate 5 can be tightly attached to the surface of the rotating shaft inserted into the connecting sleeve 1 when the rotating rod 4 rotates, and the outer surface of the rotating shaft is provided with a rectangular groove adapted to the square edge 3, so as to ensure the clamping effect of the clamping mechanism on the rotating shaft. Specifically, there are two groups of clamping plates 5, and the two groups of clamping plates 5 are respectively arranged on the upper and lower sides of the central axis of the square edge 3. Furthermore, the inner surface of the rectangular groove is provided with a circular groove with a diameter larger than the outer diameter of the spiral spring 6, and both ends of the spiral spring 6 They are respectively fixedly connected to the bottom inner wall of the circular groove and the arc-shaped outer wall of the rotating rod 4, so that when the rotating rod 4 rotates, due to the limitation of the elastic force of the spiral spring 6, the rotating rod 4 has a tendency to rotate in the opposite direction to achieve reset, thereby prompting the rotating rod 4 to drive the clamping plate 5 to fit tightly on the outer surface of the rotating shaft. At the same time, the number of anti-slip belts 7 is arranged in multiple groups, and the multiple groups of anti-slip belts 7 are evenly distributed on the side wall of the clamping plate 5 in a linear array, and the anti-slip belts 7 are arranged in a triangular shape, and the arc groove 8 is opened on the inclined surface of the anti-slip belt 7 to enhance the clamping and blocking effect of the anti-slip belt 7 on the surface of the rotating shaft, so as to prevent the rotating shaft from easily detaching in the vertical direction after being inserted into the interior of the connecting sleeve 1, and ensure that the bench can maintain a stable working state after assembly.

[0029] In an embodiment of the utility model, a pushing structure is provided inside the square edge 3, and the pushing structure includes an insertion rod 9. The insertion rod 9 is slidably installed on the inner wall of the square edge 3. The insertion rod 9 passes through a square plate 10, and the square plate 10 is fixedly connected to the insertion rod 9. A return spring 11 is fixedly connected to the upper surface of the square plate 10. A support plate 12 is hinged on the outer wall of the insertion rod 9. A straight groove 13 is provided on the inner wall of the end of the support plate 12 away from the insertion rod 9, and a round rod 14 is fixedly installed on the side wall of the pressing plate 5.

[0030] Specifically, the inner wall of the square edge 3 is provided with a plug hole adapted to the insertion rod 9, and the inner wall of the square edge 3 is provided with a square groove adapted to the square plate 10, and the two ends of the return spring 11 are respectively fixedly connected between the square plate 10 and the inner wall at the top of the square groove, so that the insertion rod 9 can move in the vertical direction inside the square edge 3. At the same time, the round rod 14 is arranged inside the straight notch 13. When the five-claw plate is used, the five-claw plate is placed on the ground. Due to the thrust of the ground on the bottom end of the insertion rod 9, the insertion rod 9 moves upward. This in turn drives the support plate 12 to generate a thrust on the clamping plate 5, pushing it toward the center of the connecting sleeve 1, thereby causing it to tightly restrict the seat rotation shaft entering the connecting sleeve 1, further ensuring the stability of the seat after installation. When the seat needs to be disassembled, the five-claw plate is lifted and the insertion rod 9 is pulled outward to cooperate with the support plate 12 and the round rod 14 to cause the clamping plate 5 to deflect toward the swing groove, so as to cause the clamping plate 5 to disengage from the seat rotation shaft, so that the staff can disassemble the seat.

[0031] In the utility model, when in use, the rotating shaft of the stool is inserted into the internal cavity of the connecting sleeve 1, and the rectangular groove on the outer surface of the rotating shaft is aligned with the square edge 3. After the rotating shaft of the stool is inserted, due to the setting of the spiral spring 6, the clamping plate 5 is tightly fitted on the outer surface of the rotating shaft of the stool. At this time, due to the push of the ground on the bottom end of the insertion rod 9, the support plate 12 is cooperated to generate an outward thrust on the clamping plate 5, so that the clamping plate 5 maintains a clamped state with the rotating shaft of the stool, and cooperates with the anti-slip belt 7 and the arc groove 8 arranged in a triangular shape to prevent the rotating shaft of the stool from easily detaching in the vertical direction after being inserted into the interior of the connecting sleeve 1, thereby ensuring that the stool can maintain a stable working state after being assembled.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A five-claw plate structure for a seat, comprising a connecting sleeve (1), a supporting foot (2) being fixedly mounted on the arc-shaped outer wall of the connecting sleeve (1), characterized in that: The inner surface of the connecting sleeve (1) is provided with a tightening mechanism, and the tightening mechanism comprises: A square edge (3), the square edge (3) being fixedly mounted on the arc-shaped inner wall of the connecting sleeve (1); A rotating rod (4), the inner wall of the square edge (3) is rotatably mounted with the rotating rod (4), the rotating rod (4) is penetrated by a clamping plate (5), and the clamping plate (5) is fixedly connected to the rotating rod (4), and a spiral spring (6) is sleeved on the arc-shaped outer wall of the rotating rod (4); An anti-slip belt (7), the side wall of the abutting plate (5) is provided with an anti-slip belt (7), and an arc-shaped groove (8) is provided on the outer surface of the anti-slip belt (7).

2. The five-claw plate structure for a seat according to claim 1, characterized in that: The number of the supporting feet (2) is five, and the five groups of supporting feet (2) are evenly distributed in a circular array on the arc-shaped outer wall of the connecting sleeve (1); the number of the tightening mechanisms is five, and the five groups of tightening mechanisms are evenly distributed in a circular array on the arc-shaped inner wall of the connecting sleeve (1); and the five groups of tightening mechanisms are spaced apart from the five groups of supporting feet (2).

3. The five-claw plate structure for a seat according to claim 1, characterized in that: The inner wall of the square edge (3) is provided with a swing groove having the same width as that of the abutting plate (5).

4. The five-claw plate structure for a seat according to claim 1, characterized in that: The abutting plate (5) is made of two metal plates whose connecting parts are arranged at an obtuse angle.

5. The five-claw plate structure for a seat according to claim 1, characterized in that: The anti-slip belt (7) is arranged in a triangular shape, and the arc-shaped groove (8) is arranged on the inclined surface of the anti-slip belt (7).

6. The five-claw plate structure for a seat according to claim 1, characterized in that: A pushing structure is arranged inside the square edge (3), and the pushing structure comprises an insert rod (9). The insert rod (9) is slidably mounted on the inner wall of the square edge (3). The insert rod (9) passes through a square plate (10), and the square plate (10) is fixedly connected to the insert rod (9). A return spring (11) is fixedly connected to the upper surface of the square plate (10). A support plate (12) is hingedly connected to the outer wall of the insert rod (9). A straight groove (13) is provided on the inner wall of one end of the support plate (12) away from the insert rod (9). A round rod (14) is fixedly mounted on the side wall of the clamping plate (5).

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