Mobile stool leg structure

Abstract

The utility model discloses a mobile stool supporting leg structure, include: stool surface, its bottom is connected with support rod, connecting seat is located below the stool surface, including the distribution of two connecting plates of up and down, and there is a gap between two connecting plates, and the support rod of stool surface bottom vertically passes the middle part of two connecting plates of up and down and is fixedly connected with it, stool leg, be provided with a plurality of and set L type, and the top of stool leg is inserted into the gap between two connecting plates in horizontal straight line, and through first bolt, each stool leg is connected together with connecting seat, connecting rod, be provided with a plurality of and be located between two adjacent stool legs, form a whole with a plurality of stool legs, restraint part is used for limiting the position of stool leg relative connecting seat, the stool leg of the present application can not produce the wobble under the long -time use, even if first bolt has produced the loosening, and the stool leg is still more stable, and as long as the stool leg does not completely withdraw connecting seat, under the limitation of restraint part and connecting seat, the stool leg still has stable and firm supporting performance.

Description

Technical Field

[0001] This utility model relates to the field of mobile stool support technology, and in particular to a mobile stool support structure. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] A portable stool refers to a stool with wheels at the bottom. Because it is moved frequently and affected by vibration, the screws at the joints of the stool legs are prone to loosening or even falling off, causing the stool legs to wobble and making it uncomfortable to use.

[0004] To prevent stool legs from loosening, common methods include: 1. manufacturing the stool legs and stool as a single piece; 2. increasing the number of connecting bolts and using washers to prevent loosening; 3. adding connecting rods between the stool legs, etc. However, the above methods are often accompanied by problems such as high manufacturing costs, high process requirements, and complicated assembly. Moreover, simply increasing the number of connecting bolts can only slightly extend the period of stool leg wobbling; there is room for improvement. Therefore, this application provides a movable stool leg structure that can greatly extend the period of stool leg loosening. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned shortcomings by providing a mobile stool support leg structure.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A mobile stool support leg structure, comprising: The stool seat has a support rod attached to its bottom; The connecting seat, located below the stool surface, includes two connecting plates distributed vertically, with a gap between the two connecting plates. The support rod at the bottom of the stool surface passes vertically through the middle of the two connecting plates and is fixedly connected to them. The stool legs are L-shaped and there are multiple of them. The top of the stool legs is inserted horizontally into the gap between the two connecting plates, and each stool leg is connected to the connecting seat by the first bolt, preventing the stool legs from straight out of the connecting seat. The connecting rods, which are multiple and located between two adjacent stool legs, connect the multiple stool legs into a whole; The constraint component is used to prevent one end of the corresponding connecting seat of the stool leg from rotating relative to the connecting seat and from moving left or right.

[0007] Furthermore, the tops of multiple stool legs form a polygonal closed structure within the connecting seat, and the constraint component is an inclined surface provided at one end of the top of each stool leg, the inclined surface being used to abut against the side of the adjacent stool leg.

[0008] Furthermore, the constraint component includes a first protrusion disposed on at least one connecting plate. The first protrusion is provided at least one and is located at the position of the corresponding stool leg on the connecting plate. A first sliding groove is provided at the position of the corresponding first protrusion on the stool leg. The first sliding groove extends through the top of the stool leg along the contour direction of the stool leg, and the first protrusion slides in cooperation with the first sliding groove.

[0009] Furthermore, the first protrusion is elongated.

[0010] Furthermore, the first protrusion is dot-shaped or line segment-shaped and has multiple protrusions, which are distributed in a straight line at intervals.

[0011] Furthermore, the first protrusion is integrally formed with the connecting seat through a stamping process.

[0012] Furthermore, the first groove is integrally formed with the stool leg through a stamping process.

[0013] Furthermore, each connecting rod encloses a closed space at the bottom of the stool leg, and a support net is provided in the closed space, which is laid in a planar shape within the closed space.

[0014] Furthermore, a fixing plate is provided at the position of the corresponding connecting rod at the bottom of the stool leg, and the fixing plate and the corresponding connecting rod are connected together by a second bolt.

[0015] Furthermore, a second protrusion is provided at the top or bottom position of the corresponding connecting rod of the fixing plate. The second protrusion is elongated and extends along the length of the connecting rod and is vertically inserted into the connecting rod. A second sliding groove is provided at the position of the corresponding second protrusion of the connecting rod to slide and engage with the second protrusion.

[0016] The beneficial effects of this utility model are reflected in: This application designs the stool legs in an L-shape, with the top of the stool legs inserted laterally into the gap between two connecting plates. Simultaneously, a constraint component laterally constrains the stool legs, preventing them from rotating, swaying, or moving out of the connecting plate. This ensures the stool legs can only move linearly along the direction of insertion into the connecting plate. Furthermore, a connecting rod connects multiple stool legs into a single unit, further restricting their linear movement. This prevents the stool legs from wobbling during prolonged use. Even if the first bolt loosens, the stool legs remain relatively stable. Even if the first bolt falls off and the bolts between the connecting rod and the stool legs loosen, causing displacement of the stool legs relative to the connecting plate in the linear direction, as long as the stool legs do not completely exit the connecting plate, the constraint component and the connecting plate maintain stable and reliable support. Attached Figure Description

[0017] Figure 1This is an exploded view of the movable stool support leg structure described in this utility model; Figure 2 for Figure 1 Enlarged view at point A in the middle; Figure 3 for Figure 1 Enlarged view at point B; Figure 4 for Figure 1 A magnified view at point C; Figure 5 This is a distribution diagram of the various stool legs described in this utility model; Figure 6 This is a distribution diagram of the first protrusion in this utility model; Figure 7 This is an overall structural diagram of the connector described in this utility model.

[0018] In the picture: 1. Connecting seat; 11. Connecting plate; 12. First protrusion; 2. Stool surface; 21. Support rod; 3. Stool leg; 31. Inclined surface; 32. First groove; 33. Fixing plate; 34. Second bolt; 35. Second protrusion; 4. First bolt; 5. Connecting rod; 51. Second groove; 6. Bearing net. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] Please see Figure 1-7 This utility model discloses a mobile stool support leg structure, comprising: The seat 2 has a support rod 21 connected to its bottom; The connecting seat 1, located below the stool surface 2, includes two connecting plates 11 distributed vertically, with a gap between the two connecting plates 11. The support rod 21 at the bottom of the stool surface 2 passes vertically through the middle of the two connecting plates 11 and is fixedly connected to them. The stool legs 3 are L-shaped and there are multiple of them. Each stool leg 3 has a caster at its bottom. The top of the stool leg 3 is horizontally inserted into the gap between the two connecting plates 11. Each stool leg 3 is connected to the connecting seat 1 by the first bolt 4 (the first bolt 4 vertically penetrates the two connecting plates 11 and the corresponding stool leg 3 and is locked by a nut) to prevent the stool leg 3 from exiting the connecting seat 1 in a straight line. Linkage 5, with multiple links located between two adjacent stool legs 3, connects the multiple stool legs 3 together to form a whole; The constraint component is used to prevent one end of the corresponding connecting seat 1 of the stool leg 3 from rotating relative to the connecting seat 1 and from swaying left and right, and to prevent the stool leg 3 from moving out of the connecting seat 1 from the side of the connecting seat 1.

[0021] This application designs the stool leg 3 in an L-shape, with the top of the stool leg 3 inserted laterally into the gap between the two connecting plates 11. At the same time, the stool leg 3 is laterally constrained by the constraint component to prevent the stool leg 3 from rotating, swaying left and right relative to the connecting seat 1, and moving out of the side of the connecting seat 1. In this way, the stool leg 3 can only move in a straight line along the direction of insertion into the connecting plate 11. The connecting rod 5 connects multiple stool legs 3 into a whole, which further restricts the movement of the stool leg 3 in the straight direction. Thus, the stool leg 3 can not wobble during long-term use. Even if the first bolt 4 becomes loose, the stool leg 3 is still relatively stable. Even if the first bolt 4 falls off and the bolt between the connecting rod 5 and the stool leg 3 becomes loose, causing the stool leg 3 to be displaced in the straight direction relative to the connecting seat 1, as long as the stool leg 3 does not completely exit the connecting seat 1, under the constraint of the constraint component and the connecting seat 1, the stool leg 3 still has stable and reliable support performance.

[0022] Preferably, the support rod 21 at the bottom of the seat 2 can be a gas spring commonly found in height-adjustable chairs on the market.

[0023] Preferably, the stool leg 3 is located between the two connecting plates 11, and its upper and lower surfaces are in contact with the two connecting plates 11, thereby limiting the vertical movement of the stool leg 3.

[0024] In one embodiment, the tops of multiple stool legs 3 form a closed polygonal structure within the connecting seat 1. The constraint component is an inclined surface 31 located at one end of the top of each stool leg 3, which is used to abut against the side of the adjacent stool leg 3. This design allows for a longer insertion length at the top of the stool leg 3, making the stool leg 3 more reliable and less likely to detach from the connecting seat 1. Furthermore, this distribution structure can cooperate with the inclined surface 31 located at one end of the top of each stool leg 3. After the inclined surface 31 contacts the side of the stool leg 3, the stool leg 3 is constrained by the side of the other stool leg 3, making it difficult for the stool leg 3 to rotate or move out of the connecting seat 1 from the side, thus forcing the stool leg 3 to move only in the insertion direction.

[0025] In one embodiment, the constraint component includes a first protrusion 12 disposed on at least one connecting plate 11. The first protrusion 12 is provided at least once and is located at the position of the corresponding stool leg 3 on the connecting plate 11. The stool leg 3 is provided with a first sliding groove 32 at the position of the corresponding first protrusion 12. The first sliding groove 32 extends through the top end of the stool leg 3 along the contour direction of the stool leg 3. The first protrusion 12 and the first sliding groove 32 are slidably engaged.

[0026] In practice, when the top of the stool leg 3 is inserted into the gap between the two connecting plates 11, the first protrusion 12 is located in the first sliding groove 32. Under the limiting cooperation of the first protrusion 12 and the first sliding groove 32, the stool leg 3 is prevented from rotating relative to the connecting seat 1 and from moving left and right.

[0027] In one embodiment, the first protrusion 12 is elongated; or the first protrusion 12 is dot-shaped (i.e., cylindrical or hemispherical) or line segment-shaped and there are multiple protrusions distributed in a straight line. This design can better constrain the stool legs 3.

[0028] In one embodiment, the first protrusion 12 is integrally formed with the connecting seat 1 by a stamping process. The first groove 32 is also integrally formed with the stool leg 3 by a stamping process. This design results in lower overall manufacturing and material costs, and the structure is relatively simple.

[0029] In one embodiment, each connecting rod 5 encloses a closed space at the bottom of the stool leg 3, and a carrying net 6 is provided in the closed space, which is laid in a planar shape within the closed space.

[0030] In practice, the carrying net bag 6 can be connected to the corresponding connecting rod 5 through various methods such as gluing, hooking, and fixing with fasteners, so that the carrying net bag 6 can be opened to accommodate items and provide storage space. Alternatively, the carrying net bag 6 can be fixed to the corresponding caster position on the fixed base on the top of the caster for connection with the stool leg 3.

[0031] In one embodiment, a fixing plate 33 is provided at the position of the corresponding connecting rod 5 at the bottom of the stool leg 3. The fixing plate 33 and the corresponding connecting rod 5 are connected together by a second bolt 34 (the second bolt 34 vertically penetrates the fixing plate 33 and the corresponding connecting rod 5 and is locked by a nut).

[0032] In one embodiment, a second protrusion 35 is provided on the top or bottom surface of the corresponding connecting rod 5 of the fixing plate 33. The second protrusion 35 is elongated and extends along the length of the connecting rod 5 and is vertically inserted into the connecting rod 5. A second groove 51 is provided on the connecting rod 5 at the position corresponding to the second protrusion 35, which slides and engages with the second protrusion 35. With this design, the second protrusion 35 and the second groove 51 can also transmit the torsional force to the connecting rod 5 and then to the entire stool leg 3 through the connecting rod 5. This can effectively reduce the force acting on a single stool leg 3, and at the same time, it can also restrict the stool leg 3 in the opposite direction.

[0033] Preferably, both the second protrusion 35 and the second groove 51 can be manufactured by stamping.

[0034] Preferably, the second groove 51 can extend through one end of the connecting rod 5 along the length direction of the connecting rod 5.

[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0037] Additionally, "multiple" refers to two or more.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile stool support leg structure, characterized in that, include: The seat (2) has a support rod (21) connected to its bottom; The connecting seat (1) is located below the stool surface (2) and includes two connecting plates (11) distributed vertically. There is a gap between the two connecting plates (11). The support rod (21) at the bottom of the stool surface (2) passes vertically through the middle of the two connecting plates (11) and is fixedly connected to them. The stool legs (3) are L-shaped and there are multiple of them. The top of the stool legs (3) is inserted horizontally into the gap between the two connecting plates (11) and each stool leg (3) is connected to the connecting seat (1) by the first bolt (4) to prevent the stool legs (3) from exiting the connecting seat (1) in a straight line. Linkage (5) is provided in multiple places and located between two adjacent stool legs (3) to form multiple stool legs (3) into a whole; The constraint component is used to prevent one end of the corresponding connecting seat (1) of the stool leg (3) from rotating relative to the connecting seat (1) and from moving left and right.

2. The movable stool support leg structure according to claim 1, characterized in that, The tops of multiple stool legs (3) form a polygonal closed structure within the connecting seat (1). The constraint component is an inclined surface (31) set at one end of the top of each stool leg (3). The inclined surface (31) is used to abut against the side of the adjacent stool leg (3).

3. The movable stool support leg structure according to claim 1 or 2, characterized in that, The constraint component includes a first protrusion (12) disposed on at least one connecting plate (11). The first protrusion (12) is provided at least once and is located at the position of the corresponding stool leg (3) on the connecting plate (11). The stool leg (3) is provided with a first sliding groove (32) at the position of the corresponding first protrusion (12). The first sliding groove (32) extends through the top end of the stool leg (3) along the contour direction of the stool leg (3). The first protrusion (12) and the first sliding groove (32) are slidably engaged.

4. The movable stool support leg structure according to claim 3, characterized in that, The first protrusion (12) is elongated.

5. The movable stool support leg structure according to claim 3, characterized in that, The first protrusion (12) is dot-shaped or line segment-shaped and has multiple parts, which are distributed in a straight line at intervals.

6. The movable stool support leg structure according to claim 3, characterized in that, The first protrusion (12) is integrally formed with the connecting seat (1) by a stamping process.

7. The movable stool leg structure according to claim 3, characterized in that, The first groove (32) is integrally formed with the stool leg (3) by stamping process.

8. The movable stool support leg structure according to claim 1 or 2, characterized in that, Each of the connecting rods (5) encloses a closed space at the bottom of the stool leg (3), and a carrying net (6) is provided in the closed space. The carrying net (6) is laid in a planar shape in the closed space.

9. The movable stool support leg structure according to claim 1 or 2, characterized in that, A fixing plate (33) is provided at the position of the corresponding connecting rod (5) at the bottom of the stool leg (3), and the fixing plate (33) and the corresponding connecting rod (5) are connected together by the second bolt (34).

10. The movable stool leg structure according to claim 9, characterized in that, The fixing plate (33) is provided with a second protrusion (35) at the top or bottom of the corresponding connecting rod (5). The second protrusion (35) is elongated and extends along the length of the connecting rod (5) and is vertically inserted into the connecting rod (5). The connecting rod (5) is provided with a second groove (51) at the position of the corresponding second protrusion (35) to slide and engage with the second protrusion (35).

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