Connecting structure for stool legs and stool surface of station stool

Abstract

The utility model discloses a connecting structure of a stool leg and a stool surface of a station stool, which comprises an inserting piece on the bottom surface of a stool plate, and the inserting piece can be longitudinally inserted into an inserting groove on the upper part of the stool leg; a friction meshing piece is arranged in the inserting groove, and the friction meshing piece forms clamping force on the inserting part of the inserting piece. And the friction occlusion piece can increase the clamping force on the insertion part of the insertion piece under the action of gravity sitting pressure of people. According to the utility model, the connection between the stool legs and the stool surface is firmer and more reliable under the action of gravity sitting pressure of people.

Description

Technical Field

[0001] This utility model relates to the field of workstation bench technology, and in particular to a connection structure between the bench legs and the bench surface of a workstation bench. Background Technology

[0002] In production workshops of garment and electronics factories, employees inevitably need to maintain a seated working state for long periods of time. Traditional benches are connected to the bench seat and legs by rigid fasteners such as bolts. As workers sit for longer periods of time, gaps are easily formed at the connection due to wear or pressure, resulting in loosening and wobbling. As a result, the lifespan of the benches with stable structures is usually short, and unstable benches have a significant impact on the health of employees who sit for long periods of time. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides a connection structure between the legs and the seat of a workbench, which can make the connection between the legs and the seat more firm and reliable under the pressure of a person's weight.

[0004] Technical solution: To achieve the above objectives, the present invention provides a connection structure between the legs and the seat of a workbench, including a plug-in structure. The lower side of the seat and the upper part of the legs are connected by the plug-in structure. The plug-in structure includes a plug and a slot, and the plug can be inserted longitudinally into the slot.

[0005] The slot is equipped with a friction engagement component, and the peripheral surface of the plug is formed with a bite. In the assembled state, the plug engages in the bite, causing the wall where the bite is located to deform, thereby generating an expansion force on the bite.

[0006] Furthermore, the end of the friction engagement member is set lower than the groove of the slot; the outer side of the wall of the insert with the engagement is provided with a side stop, which fits against the outer side of the groove wall of the slot in the assembled state.

[0007] Furthermore, two symmetrical friction engagement members are provided, and the two friction engagement members form a clamping force on the insertion part of the plug, and the clamping force can be increased under the pressure of a person's weight.

[0008] Furthermore, the plug is a rectangular tube with its inner wall recessed to form the bite.

[0009] Furthermore, the two walls of the insert with the bite are connected by a reinforcing member located at the root of the concave portion of the two walls.

[0010] Furthermore, the friction engagement element is a strip, the bite is a strip-shaped groove, and both the strip and the bite are arranged longitudinally.

[0011] Furthermore, a support body is provided on the lower side of the stool board, and an insertion hole is provided on the upper part of the stool leg. A longitudinal force-bearing component is provided in the insertion hole. The support body is inserted into the insertion hole, and the force-bearing component provides support to the inserted part of the support body.

[0012] Furthermore, the two supports are located on both sides of the plug-in structure.

[0013] Furthermore, the load-bearing beam of the stool passes through the support body, and the upper part of the stool leg is provided with a groove corresponding to the load-bearing beam. The insertion hole is located at the bottom of the groove, and the groove forms a constraint force in the beam width direction on the embedded part of both the load-bearing beam and the support body.

[0014] Furthermore, the support body and the corresponding load-bearing beam are integrally formed structures.

[0015] Beneficial effects: The connection structure between the legs and the seat of the workbench of this utility model can gradually increase the locking force between the interlocking parts under the pressure of a person's weight, achieving the effect of getting tighter the longer you sit on it. Moreover, through the effect of the middle part getting tighter and the sides being supported by force, the workbench becomes more and more in line with the body structure of the worker sitting on it, achieving the effect of not getting tired after sitting for a long time. Attached Figure Description

[0016] Figure 1 This is a structural diagram of an embodiment of a workstation bench using the connection structure of this utility model;

[0017] Figure 2 This is a schematic diagram of one embodiment of the connection structure of this utility model. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] As attached Figure 1-2The aforementioned connection structure between the legs and seat of a workbench includes an insertion structure. The lower side of the seat 1 and the upper part of the legs 3 are engaged through the insertion structure. The insertion structure includes a plug 4 and a slot 5. The plug 4 can be inserted longitudinally into the slot 5; the insertion of the plug 4 relative to the slot 5 provides a fastening effect. Furthermore, a friction engagement element is provided inside the slot 5, and a bite 7 is formed on the circumferential surface of the plug 4. In the assembled state, the plug 4 engages with the bite 7, causing deformation of the wall where the bite 7 is located, thereby generating an expansion force on the bite 7. When a person sits on the seat, the weight of the seat presses down on the seat, and the legs support the ground, causing the plug 4 to tend to insert further relative to the slot 5. As the insertion depth of the plug 4 relative to the slot 5 increases, the engagement area between the friction engagement element and the corresponding bite increases, thus increasing the area of ​​both friction and expansion force. This makes the connection between the seat and legs tighter, and as the bench is used for a longer period, the connection between the seat and legs becomes more robust and reliable.

[0020] The plug-in 4 can be set on the lower side of the stool board 1 or the upper part of the stool leg 3, while the slot 5 is set on the upper part of the stool leg 3 or the lower side of the stool board 1.

[0021] The end of the friction engagement member is positioned below the opening of the slot 5; a side baffle 9 is provided on the outer side of the wall of the insert 4 with the bite 7, which fits against the outer side of the slot wall of the slot 5 in the assembled state. This ensures that when the insert 4 is first inserted into the slot 5, the friction engagement member does not engage with the bite, but the slot 5 is in contact with the side baffle. As the insert continues to be inserted, the side baffle provides lateral constraint on the slot wall with the friction engagement member, thus preventing the slot wall from deforming outwards when the friction engagement member engages with the bite, and only causing the wall of the insert 4 with the bite to deform inwards. Firstly, the side baffle and the slot wall are always in a longitudinal state. The constraint of the side baffle on the slot wall maintains the longitudinal insertion relationship between the stool leg and the stool board. Simultaneously, after the insert wall deforms, the deformed wall can clamp the slot wall between the two with the adjacent side baffle, thereby further enhancing the connection and strength. Furthermore, as the insertion depth of the plug increases, the contact area between the side baffle and the outer surface of the slot also increases, further enhancing the effect of getting tighter the more you sit on it.

[0022] The friction engagement element is provided in two symmetrical parts, which together create a clamping force on the insertion part of the plug 4, and the clamping force can increase under the pressure of a person's weight. This further enhances the clamping force, making the effect of getting tighter the more you sit on it more significant.

[0023] Preferably, the insert 4 is a rectangular tube with its inner wall recessed to form the bite 7. The insert 4 can be made of polypropylene (PP) engineering plastic. When the stool board and stool legs are made of the same material, it can be integrally injection molded with the stool legs or stool board, improving the connection strength between the insert and the stool legs or stool board. The plastic insert 4 has a certain degree of toughness, and the tube made can deform under the biting action of the friction biting parts, thereby obtaining an expansion force or clamping force effect.

[0024] The two walls of the insert 4, which have bite joints 7, are connected by a reinforcing member 41 located at the root of the concave portion of the two walls. This design allows the insert wall to deform more easily near the port and less easily near the root. When the corresponding position of the reinforcing member begins to enter the slot, the relative insertion resistance increases significantly, hindering further insertion of the insert. At this point, the connection strength between the stool board and the stool leg reaches its maximum. Simultaneously, it avoids longitudinal stress on the walls of both the insert and the slot, thus preventing deformation caused by longitudinal stress.

[0025] The root of the plug 4 wall and the side baffle can be connected by a reinforcing rib. The reinforcing rib and the reinforcing member 41 work together to strengthen the root of the plug and prevent it from breaking relative to the bench surface under strong stress.

[0026] The friction engagement element is a strip 6, and the bite 7 is a strip-shaped groove. Both the strip 6 and the bite 7 are arranged longitudinally. In terms of size design, the outer contour dimension of the plug 4 can be set to match the inner contour dimension of the slot 5, allowing the plug 4 to be inserted into the slot 5 with a tight fit. The degree of protrusion of the strip 6 relative to the slot wall is adapted to the degree of concavity of the bite 7, so that the limiting strip just laterally presses against the bite 7 part, thereby enhancing the force between the plug and the slot mating surface, improving the connection strength and stability. As the insertion depth increases due to the sitting pressure, the mating surface between the plug and the slot increases, resulting in a more and more secure connection.

[0027] Alternatively, the outer contour dimensions of the plug 4 can be made to match the inner contour dimensions of the slot 5, but the protrusion of the strip 6 is slightly greater than the concavity of the bite 7, so that as the plug wall undergoes a certain degree of concave deformation within its toughness range, and the toughness that can be deformed is smaller closer to the root, the clamping force generated will increase, thereby achieving an increasingly tighter effect.

[0028] A support body 8 is provided on the lower side of the stool board 1, and an insertion hole is provided on the upper part of the stool leg 3. A longitudinal force-bearing component is provided in the insertion hole. The support body 8 is inserted into the insertion hole, and the force-bearing component provides support for the inserted part of the support body 8. The load-bearing structure composed of the support body and the force-bearing component distributes the force at the insertion point and slot, avoiding excessive sitting pressure that could damage the insertion structure.

[0029] The two supports 8 are located on both sides of the plug-in structure. Preferably, the plug-in structure is located on the central axis of the stool, and the two supports 8 are symmetrically located on both sides of the plug-in structure. Due to the support relationship between the supports and the load-bearing components, the stool at the corresponding position of the supports does not tend to press closer to the stool legs. However, due to the toughness of the plastic stool body, the stool at the corresponding position of the plug-in structure tends to press closer to the stool legs. That is, the central plug-in fastening part has the characteristic of becoming tighter with sitting, while the two load-bearing parts do not. Thus, under the pressure of a person's weight, as the plug and slot are gradually pressed together, the stool gradually forms a concave arc structure in the middle. Due to the difference in weight of each person, the sitting pressure effect is different, and the degree of concavity of the stool after long-term sitting pressure is also different. Therefore, when this connection structure is applied to a single-person short stool, since each worker usually has a fixed workstation, the workstation stool can gradually form a curved surface structure adapted to the worker as the sitting pressure time increases.

[0030] The load-bearing beam 11 of the stool 1 passes through the support body 8. The upper part of the stool leg 3 is provided with a groove 31 corresponding to the load-bearing beam 11. The insertion hole is located at the bottom of the groove 31. The groove 31 forms a constraint force in the beam width direction on the embedded parts of both the load-bearing beam 11 and the support body 8. When the workbench is a long bench, two relatively parallel load-bearing beams are usually provided in the length direction of the stool board, and the two load-bearing beams are symmetrical in the width direction of the stool board. The two load-bearing beams pass through the support bodies 8 on both sides of the insertion hole, so that the sitting pressure on the stool board is transmitted to the stool leg along the two load-bearing beams through the support body and the force-bearing component.

[0031] The support 8 and the corresponding load-bearing beam 11 are integrally molded structures. The load-bearing beam can be made of metal rods, which are integrally injection molded with the plastic bench body, making the bench structure more stable.

[0032] Preferably, the insert 4 is located on the lower side of the stool board 1, the slot 5 is located on the upper part of the stool leg 3, and when two friction engagement parts are provided, a positioning groove 2 is formed between the side baffles 9 on both sides of the insert. The upper part of the stool leg 3 is inserted into the positioning groove 2, forming a mutual insertion relationship between the stool leg and the stool board. The positioning groove 2 can determine the insertion position and orientation of the stool leg relative to the bottom surface of the stool board.

[0033] The above are merely preferred embodiments of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A connection structure between the legs and the seat of a workbench, characterized in that: It includes a plug-in structure, in which the lower side of the stool board (1) and the upper part of the stool leg (3) are connected by a plug-in structure. The plug-in structure includes a plug (4) and a slot (5). The plug (4) can be inserted longitudinally into the slot (5). The slot (5) is provided with a friction engagement member inside, and the insert (4) has a bite (7) formed on its peripheral surface. When assembled, it engages in the bite (7), causing the wall where the bite (7) is located to deform, thereby generating an expansion force on the bite (7).

2. The connection structure between the legs and the seat of a workbench according to claim 1, characterized in that: The end of the friction engagement member is set below the groove of the slot (5); the side stop (9) is provided on the outside of the wall of the insert (4) with the bite (7) and fits against the outside of the groove wall of the slot (5) in the assembled state.

3. The connection structure between the legs and the seat of a workbench according to claim 2, characterized in that: Two symmetrical friction engagement members are provided. The two friction engagement members form a clamping force on the insertion part of the plug (4), and the clamping force can be increased under the action of human gravity sitting pressure.

4. The connection structure between the legs and the seat of a workbench according to claim 3, characterized in that: The plug (4) is a rectangular tube with an indentation in its inner wall to form the bite (7).

5. The connection structure between the legs and the seat of a workbench according to claim 4, characterized in that: The two walls of the plug (4) with bite (7) are connected by a reinforcing member (41), which is located at the root of the concave portion of the two walls.

6. The connection structure between the legs and the seat of a workbench according to claim 1, characterized in that: The friction engagement element is a strip (6), and the bite (7) is a strip-shaped groove. Both the strip (6) and the bite (7) are arranged longitudinally.

7. The connection structure between the legs and the seat of a workbench according to claim 3, characterized in that: A support body (8) is provided on the lower side of the stool board (1), and an insertion hole is provided on the upper part of the stool leg (3). A longitudinal force-bearing component is provided in the insertion hole. The support body (8) is inserted into the insertion hole, and the force-bearing component provides support force to the inserted part of the support body (8).

8. The connection structure between the legs and the seat of a workbench according to claim 7, characterized in that: The two supports (8) are located on both sides of the plug-in structure.

9. The connection structure between the legs and the seat of a workbench according to claim 8, characterized in that: The load-bearing beam (11) of the stool board (1) passes through the support body (8). The upper part of the stool leg (3) is provided with a groove (31) corresponding to the load-bearing beam (11). The insertion hole is located at the bottom of the groove (31). The groove (31) forms a constraint force in the beam width direction on the embedded parts of the load-bearing beam (11) and the support body (8).

10. The connection structure between the legs and the seat of a workbench according to claim 9, characterized in that: The support (8) and the corresponding load-bearing beam (11) are integrally formed structures.

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