Retractable seat foot stool

Abstract

The utility model discloses a retractable seat foot stool, which relates to the field of seat feet and comprises a support column, a threaded mounting hole is arranged at the top of the support column, outer support covers are connected to the periphery of the support column, inner rods are slidably arranged in the outer support covers, universal wheels are arranged at the bottom ends of the inner rods, and an extrusion plate is arranged in the support column. Push rods are connected to the periphery of the bottom of the extrusion plate, and the other ends of the push rods are connected with one ends of the inner rods. The telescopic support is screwed into the threaded mounting hole in the supporting column, the telescopic support extrudes the extrusion plate located in the supporting column, the extrusion plate pushes the multiple push rods and extrudes the spring, the push rods move in the strip-shaped opening, the push rods push the multiple inner rods, and the inner rods located in the outer supporting cover are pushed out; when the chair leg is not connected with the telescopic bracket, the extrusion plate can be pushed through the elastic force of the spring, so that the inner rod is retracted into the outer supporting cover, the volume of the whole chair leg is reduced, and the chair leg is convenient to transport and carry.

Description

Technical Field

[0001] The utility model relates to the field of chair legs, and particularly relates to a retractable seat leg bracket. Background Art

[0002] Chair legs are an essential part of chairs. A chair is a piece of furniture for daily use, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion. Some chairs are no longer just used as seats. With the combination of technology, human life has become more convenient.

[0003] Currently, when using chair legs, since most chair legs are integrally formed, it is inconvenient during transportation. In the prior art, in order to facilitate the transportation of chair legs, multiple chair leg rods are mostly disassembled for transportation. When installing them with the seat, multiple chair leg rods need to be assembled manually first, and then the chair legs are connected to the seat, which is rather inconvenient.

[0004] Therefore, it is very necessary to invent a retractable seat leg bracket to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a retractable seat leg bracket to solve the problems mentioned in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A retractable seat leg bracket, including a support column, a threaded mounting hole is opened at the top of the support column, outer support covers are connected to the four sides of the support column, an inner rod is slidably arranged inside the outer support cover, a universal wheel is arranged at the bottom end of the inner rod, an extrusion plate is arranged inside the support column, push rods are connected to the four sides of the bottom of the extrusion plate, the other end of the push rod is connected to one end of the inner rod, strip-shaped openings corresponding to the push rods are connected to the four sides of the support column, a spring is connected to the bottom of the extrusion plate, and the other end of the spring is connected to the inner wall of the bottom of the support column.

[0007] Preferably, a plug rod is connected to the top of the universal wheel, a slot corresponding to the plug rod is opened at the bottom of the inner rod, first threaded holes corresponding to each other are opened on the side walls of the inner rod and the plug rod, and a first bolt is threadedly connected inside the first threaded hole.

[0008] Preferably, a second threaded hole is opened at the bottom of the support column, and a second bolt is threadedly connected inside the second threaded hole. A third threaded hole corresponding to the second bolt is opened at the bottom of the extrusion plate.

[0009] Preferably, limiting sliders are connected to the front and rear sides of the inner rod, and limiting chutes corresponding to the limiting sliders are opened on the front and rear inner side walls of the outer support cover.

[0010] Technical effects and advantages of the present utility model:

[0011] By screwing the telescopic bracket into the threaded mounting hole on the support column, the telescopic bracket squeezes the extrusion plate inside the support column. The extrusion plate pushes multiple push rods and squeezes the springs, causing the push rods to move within the strip-shaped openings. The push rods push multiple inner rods, pushing out the inner rods within the outer support cover. Conversely, when not connected to the telescopic bracket, the extrusion plate can be pushed by the elastic force of the springs, thereby retracting the inner rods into the outer support cover, thus reducing the volume of the entire chair leg and facilitating transportation and carrying. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0013] Figure 2 is the present utility model Figure 1 schematic diagram of the front-side structure;

[0014] Figure 3 is the present utility model Figure 1 schematic diagram of the enlarged structure of part A.

[0015] In the figure: 1, support column; 2, support cover; 3, inner rod; 4, universal wheel; 5, extrusion plate; 6, push rod; 7, spring; 8, insertion rod; 9, first bolt; 10, second bolt; 11, limit slider. Specific Embodiments

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0017] The present utility model provides as Figures 1-3A retractable seat footrest is shown, which includes a support column 1. A threaded mounting hole is provided at the top of the support column 1. Outer support covers 2 are connected to all around the support column 1. An inner rod 3 is slidably arranged inside the outer support cover 2. A universal wheel 4 is provided at the bottom end of the inner rod 3. An extrusion plate 5 is arranged inside the support column 1. Push rods 6 are connected to all around the bottom of the extrusion plate 5. The other end of the push rod 6 is connected to one end of the inner rod 3. Strip-shaped openings corresponding to the push rods 6 are connected to all around the support column 1. A spring 7 is connected to the bottom of the extrusion plate 5. The other end of the spring 7 is connected to the inner wall of the bottom of the support column 1. When connecting the support column 1 with the telescopic bracket on the seat, by screwing the telescopic bracket into the threaded mounting hole on the support column 1, the telescopic bracket extrudes the extrusion plate 5 inside the support column 1. The extrusion plate 5 pushes multiple push rods 6 and compresses the spring 7, so that the push rods 6 move inside the strip-shaped openings. The push rods 6 push multiple inner rods 3, and push out the inner rods 3 inside the outer support cover 2. On the contrary, when not connected to the telescopic bracket, the extrusion plate 5 can be pushed by the elastic force of the spring 7, so as to retract the inner rods 3 into the outer support cover 2, thereby reducing the volume of the entire chair leg and facilitating transportation and carrying.

[0018] A plug rod 8 is connected to the top of the universal wheel 4. A slot corresponding to the plug rod 8 is provided at the bottom of the inner rod 3. Corresponding first threaded holes are provided on the side walls of the inner rod 3 and the plug rod 8, and a first bolt 9 is threadedly connected inside the first threaded hole. By inserting the plug rod 8 into the slot on the inner rod 3 and locking it with the first bolt 9, the universal wheel 4 can be installed.

[0019] A second threaded hole is provided at the bottom of the support column 1, and a second bolt 10 is threadedly connected inside the second threaded hole. A third threaded hole corresponding to the second bolt 10 is provided at the bottom of the extrusion plate 5. By using the second bolt 10 to connect the extrusion plate 5, multiple inner rods 3 can be locked.

[0020] Limit sliders 11 are connected to both the front and rear sides of the inner rod 3. Limit sliding grooves corresponding to the limit sliders 11 are provided on both the front and rear inner side walls of the outer support cover 2. The inner rod 3 pulls the limit sliders 11, so that the limit sliders 11 slide inside the limit sliding grooves on the outer support cover 2, thereby performing sliding groove limit on the inner rod 3.

[0021] The working principle of the present utility model:

[0022] By screwing the telescopic bracket into the threaded mounting hole on the support column 1, the telescopic bracket squeezes the pressing plate 5 located inside the support column 1. The pressing plate 5 pushes multiple push rods 6 and squeezes the spring 7, causing the push rods 6 to move within the strip-shaped opening. The push rods 6 push multiple inner rods 3, pushing out the inner rods 3 located inside the outer support cover 2. Conversely, when not connected to the telescopic bracket, the elastic force of the spring 7 can be used to push the pressing plate 5, thereby retracting the inner rods 3 into the outer support cover 2. By inserting the insertion rod 8 into the slot on the inner rod 3 and locking it with the first bolt 9, the universal wheel 4 can be installed. By using the second bolt 10 to connect the pressing plate 5, multiple inner rods 3 can be locked.

[0023] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A collapsible seat leg, comprising a support column, and a threaded mounting hole is provided at the top of the support column, characterized in that: An outer support cover is connected to the periphery of the support column. An inner rod is slidably arranged in the outer support cover. A universal wheel is arranged at the bottom end of the inner rod. An extrusion plate is arranged in the support column. Push rods are connected to the four peripheries of the bottom of the extrusion plate. The other ends of the push rods are connected to one ends of the inner rods. Strip-shaped openings corresponding to the push rods are connected to the four peripheries of the support column. A spring is connected to the bottom of the extrusion plate. The other end of the spring is connected to the inner wall of the bottom of the support column.

2. The retractable seat leg rest according to claim 1, wherein: A plug rod is connected to the top of the universal wheel. A slot corresponding to the plug rod is opened at the bottom of the inner rod. First threaded holes are opened in the side walls of the inner rod and the plug rod, and a first bolt is threadedly connected in the first threaded holes.

3. The retractable seat leg rest according to claim 1, wherein: A second threaded hole is opened at the bottom of the support column, and a second bolt is threadedly connected in the second threaded hole. A third threaded hole corresponding to the second bolt is opened at the bottom of the extrusion plate.

4. A retractable seat leg according to claim 1, characterized in that: Limit sliders are connected to the front and rear sides of the inner rod. Limit sliding grooves corresponding to the limit sliders are opened on the front and rear inner side walls of the outer support cover.

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