Height adjustable foot mat device and corresponding desk chair

Abstract

This utility model provides an adjustable height foot pad device and a corresponding desk and chair. The adjustable height foot pad device includes a foot pad body, a height adjustment knob, and an anti-slip and sound-absorbing pad. The height adjustment knob includes a rotary knob and a stud, with the rotary knob located on the bottom surface of the foot pad body. The stud is threadedly connected to the foot pad body. The anti-slip and sound-absorbing pad is made of soft material and is fixedly connected to the bottom surface of the foot pad body, located on one side of the rotary knob in the horizontal direction. When the height adjustment knob is rotated, the stud will screw in or out, thereby adjusting the distance between the rotary knob and the foot pad body, thus changing the overall height of the adjustable height foot pad device, achieving the function of adjusting the stability of the desk and chair to adapt to uneven ground. The soft material used in the anti-slip and sound-absorbing pad has a certain degree of elasticity, giving it shock absorption and noise reduction functions. At the same time, its thickness can change with the height adjustment knob, maintaining contact with the ground at all times to better exert its shock absorption and noise reduction effect.

Description

Technical Field

[0001] This utility model relates to the field of school desks and chairs, and in particular to an adjustable height foot pad device and a corresponding school desk and chair. Background Technology

[0002] School desks and chairs typically have multiple feet that contact the ground. To prevent the desks and chairs from moving or making noise, shims are placed on these feet. If the shims are made of soft material, the desks and chairs can easily become unstable. In addition, in many cases, the ground is not flat, and whether or not there are shims, the desks and chairs will be unstable when placed on the ground, making them inconvenient to use. Utility Model Content

[0003] This utility model provides an adjustable height foot pad device and a corresponding desk and chair, which enables the desk and chair to be placed stably on the ground and has a quiet and anti-slip effect.

[0004] The adjustable height foot pad device provided by this utility model is used to be installed on the foot tube of a school desk and chair to adjust the stability of the school desk and chair, including a foot pad body, a height adjustment knob and an anti-slip and silent pad; The foot pad body is used to connect with the foot tube; The height adjustment knob includes a rotary knob and a stud. The rotary knob is located on the bottom surface of the foot pad body. The stud is vertically arranged, with its bottom end fixedly connected to the rotary knob, and the stud is threadedly connected to the foot pad body. The anti-slip and noise-reducing pad is made of soft material and is fixedly connected to the bottom surface of the main body of the foot pad, located on the horizontal side of the rotary knob.

[0005] The foot pad body is formed by in-mold injection molding, and it has internal and external threaded nuts embedded in it. The internal and external threaded nuts are made of metal, and the stud is threadedly connected to the internal and external threaded nuts.

[0006] The bottom surface of the stud is exposed at the bottom surface of the rotary knob and is provided with a hexagonal hole.

[0007] The stud is made of metal, the rotary knob is made of engineering plastic, and the stud and the rotary knob are integrally injection molded in the mold.

[0008] The anti-slip and silent pad is made of a soft material with a high coefficient of friction, and its bottom is provided with mesh anti-slip protrusions.

[0009] The bottom surface of the foot pad body is provided with blind holes, and the anti-slip and silent pad is adhered to the blind holes and protrudes from the bottom surface of the foot pad body.

[0010] The foot tube is horizontally positioned and has an open end; the foot pad body includes a supporting foot and a sealing plug, the supporting foot being connected to the bottom of the foot tube; the sealing plug is located at the top end of the supporting foot and is inserted into the end opening of the foot tube. The height adjustment knob and the anti-slip and noise-reducing pad are arranged along the length of the foot tube and are located at the bottom of the support foot. The height adjustment knob is located at the end of the foot tube relative to the anti-slip and noise-reducing pad.

[0011] The sealing plug includes an insertion part and a sealing part. The insertion part is annular and is inserted into the foot tube. The sealing part is fixed to one end of the insertion part and is located outside the foot tube. The outer peripheral surface of the sealing part is aligned with the outer peripheral surface of the foot tube and is connected to the support foot. The top of the support leg is provided with a reinforcing block, and an internal or external threaded nut for connecting the stud is embedded in the reinforcing block. The reinforcing block is connected to the bottom of the insertion part and the inner side of the sealing plug, and the reinforcing block extends into the ring of the insertion part. A notch is provided on the bottom side of the end of the leg tube, and the reinforcing block is inserted into the notch.

[0012] The support foot is provided with a screw through hole and is fixed to the bottom of the foot tube by a screw; the screw through hole is located between the height adjustment knob and the anti-slip and silent pad.

[0013] On the other hand, this utility model also provides a desk and chair, including a leg tube and the aforementioned adjustable height foot pad device, wherein the foot pad body is connected to the leg tube.

[0014] The adjustable height foot pad device and corresponding desks and chairs provided by this utility model utilize the threaded engagement between the stud and the foot pad body when the height adjustment knob is rotated. The stud will screw in or out, thereby adjusting the distance between the knob and the foot pad body, thus changing the overall height of the adjustable height foot pad device, thereby achieving the function of adjusting the stability of the desk and chair to adapt to uneven bottom surfaces. The anti-slip and sound-absorbing pad is made of soft material with a certain degree of elasticity, which gives it shock absorption and noise reduction functions. At the same time, the thickness of the anti-slip and sound-absorbing pad can change with the height adjustment knob, and the anti-slip and sound-absorbing pad can always maintain contact with the ground, thereby better exerting its shock absorption and noise reduction effect. Attached Figure Description

[0015] Figure 1 A partial structural diagram of the desk and chair at one end of the leg tubes provided in a preferred embodiment of this utility model; Figure 2 yes Figure 1 Exploded view of the middle leg tube and adjustable height foot pad device; Figure 3 yes Figure 2Cross-sectional view of the middle leg tube and adjustable height foot pad device; Figure 4 yes Figure 2 A schematic diagram of the adjustable height foot pad device. Detailed Implementation

[0016] 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 some embodiments of the present utility model, and not all embodiments. 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 protection scope of the present utility model.

[0017] In the diagram, units with similar structures are represented by the same labels.

[0018] This utility model provides a school desk and chair, which includes leg tubes 200 and height-adjustable foot pads 100. Figure 1 The diagram shows a partial structure of the desk and chair at one end of the leg tube 200. An adjustable height foot pad device 100 is installed on the leg tube 200 to fine-tune the height of the end of the leg tube 200. The desk and chair may include two leg tubes 200, which are horizontally positioned. Both ends of the leg tube 200 are equipped with adjustable height foot pad devices 100, meaning the desk and chair may include four adjustable height foot pad devices 100 for adjustment from four different positions to achieve a stable state.

[0019] The adjustable height foot pad device 100 includes a foot pad body 1, a height adjustment knob 2, and an anti-slip and silent pad 3. The foot pad body 1 is used to connect to the foot tube 200. The height adjustment knob 2 and the anti-slip and silent pad 3 are both located at the bottom of the foot pad. The height adjustment knob 2 is used to adjust the height, and the anti-slip and silent pad 3 can achieve anti-slip and silent operation.

[0020] The height adjustment knob 2 includes a rotary knob 21 and a stud 22. The rotary knob 21 is located on the bottom surface of the foot pad body 1 and can be used to abut against the ground to ensure the stability of the adjustable height foot pad device 100 in contact with the ground. The stud 22 is vertically arranged, with its bottom end fixedly connected to the rotary knob 21, and the stud 22 is threadedly connected to the foot pad body 1. When the height adjustment knob 2 is rotated, the threaded engagement between the stud 22 and the foot pad body 1 causes the stud 22 to screw in or out, thereby adjusting the distance between the rotary knob 21 and the foot pad body 1, changing the overall height of the adjustable height foot pad device 100, and thus achieving the function of adjusting the stability of the desk and chair to adapt to uneven ground.

[0021] The anti-slip and noise-reducing mat 3 is made of soft material and is fixed to the bottom surface of the main body 1 of the foot pad, located on the horizontal side of the rotary knob 21. The soft material used in the anti-slip and noise-reducing mat 3 has a certain degree of elasticity, which enables it to absorb shock and reduce noise. At the same time, the thickness of the anti-slip and noise-reducing mat 3 can be changed with the height adjustment knob 2, so that the anti-slip and noise-reducing mat 3 can always maintain contact with the ground, thereby better exerting its shock absorption and noise reduction effect.

[0022] In this embodiment, as Figure 2 and Figure 3 As shown, the foot pad body 1 is injection molded, and it has internally and externally threaded nuts 10 embedded within it. The internally and externally threaded nuts 10 are made of metal, and the stud 22 is threadedly connected to them. Using metal internally and externally threaded nuts to connect with the stud 22 improves service life. The external threads on the outer surface of the internally and externally threaded nuts 10 enhance the bonding strength with the intersecting body, ensuring that after injection molding, the internally and externally threaded nuts 10 are firmly embedded in the foot pad body 1, thus improving structural strength.

[0023] like Figure 2 As shown, the end of the foot tube 200 is open. The foot pad body 1 supports the foot tube 200 while simultaneously closing the opening at the end of the foot tube 200. Specifically, in conjunction with... Figure 2 , Figure 3 and Figure 4 As shown, the foot pad body 1 includes a support foot 11 and a sealing plug 12. The support foot 11 is connected to the bottom of the foot tube 200, and the sealing plug 12 is located at the top end of the support foot 11. The sealing plug 12 is inserted into the end opening of the foot tube 200. The sealing plug 12 can be used to seal the end of the foot tube 200 to prevent foreign objects from entering and affecting the service life.

[0024] The height adjustment knob 2 and the anti-slip noise reduction pad 3 are arranged along the length of the foot tube 200 and located at the bottom of the support foot 11. The support foot 11 allows for convenient placement of the height adjustment knob 2 and the anti-slip noise reduction pad 3, and the length of the foot tube 200 makes the layout compact. The height adjustment knob 2 is positioned relative to the anti-slip noise reduction pad 3 near the end of the foot tube 200, making it convenient for the user to rotate and adjust it at the end of the foot tube 200.

[0025] The sealing plug 12 further includes an insertion portion 121 and a sealing portion 122. The insertion portion 121 is annular and inserts into the foot tube 200, enabling the sealing plug 12 and the foot tube 200 to be inserted and fitted together. The outer peripheral surface of the sealing portion 122 is aligned with the outer peripheral surface of the foot tube 200, effectively sealing the end of the foot tube 200 and resulting in a clean and aesthetically pleasing appearance after connection. The sealing portion 122 is connected to the support foot 11, allowing them to be integrally molded by injection molding.

[0026] Combination Figure 3 and Figure 4As shown, a reinforcing block 13 is provided on the top of the support foot 11. An internal or external thread nut 10 for connecting the stud 22 is embedded in the reinforcing block 13. The internal or external thread nut 10 can be easily installed by using the reinforcing block 13, thereby improving the bonding strength between the internal or external thread nut and the foot pad body 1.

[0027] The reinforcing block 13 is connected to the bottom of the insertion part 121 and the inner side of the sealing plug 12, and the reinforcing block 13 extends into the ring of the insertion part 121. A notch is provided on the bottom side of the end of the foot tube 200, and the reinforcing block 13 is inserted into the notch. This allows the reinforcing block 13 to be located inside the foot tube 200, increasing the vertical dimension of the reinforcing block 13 to facilitate the installation of a longer internal and external thread nut 10, which is beneficial to the stability of the threaded engagement between the internal and external thread nut 10 and the stud 22. The connection between the reinforcing block 13 and the insertion part 121 and the sealing plug 12, combined with the connection between the sealing part 122 and the support foot 11, can improve the structural strength of the connection between the sealing plug 12 and the support foot 11. The insertion of the reinforcing block 13 into the notch can improve the connection strength between the foot pad body 1 and the foot tube 200.

[0028] The support foot 11 is provided with a screw through hole 111 and is fixed to the bottom of the foot tube 200 by screws. The jelly is located between the height adjustment knob 2 and the anti-slip and silent pad 3. The screw through hole 111 allows screws to be easily passed through the screw through hole 111 and the support foot 11 to be fixed to the foot tube 200, which facilitates the assembly and connection between the adjustable height foot pad device 100 and the foot tube 200.

[0029] The overall height of the adjustable height foot pad device 100 can be adjusted by rotating the height adjustment knob 21. The user can operate the knob 21 to rotate the height adjustment knob 2. In this embodiment, as... Figure 1 , Figure 2 and Figure 3 As shown, the stud 22 is exposed on the bottom surface of the rotary knob 21 and is provided with a hexagonal hole 221. The user can also use a hexagonal tool to insert into the hexagonal hole 221. The hexagonal tool directly acts on the stud 22 to drive the height adjustment knob 2 to rotate.

[0030] The stud 22 is made of metal to improve the reliability of the threaded connection. The rotary knob 21 is made of engineering plastic to avoid scratching the ground. The stud 22 and the rotary knob 21 are integrally injection molded to improve the connection strength and ensure that they rotate simultaneously.

[0031] The anti-slip and noise-reducing pad 3 is made of soft material with a high coefficient of friction. The bottom of the pad has mesh anti-slip protrusions 31 to improve the anti-slip and noise reduction effect of the anti-slip and noise-reducing pad 3.

[0032] The bottom surface of the foot pad body 1 is provided with blind holes 112. The anti-slip and sound-absorbing pad 3 is adhered to the blind holes 112 and protrudes from the bottom surface of the foot pad body 1. The bottom surface of the foot pad body 1 is also the bottom surface of the support foot 11. The blind holes 112 facilitate the positioning and assembly between the anti-slip and sound-absorbing pad 3 and the foot pad body 1, and also allow for an increase in the thickness of the anti-slip and sound-absorbing pad 3 to facilitate its deformation.

[0033] The adjustable height foot pad device 100 provided by this utility model has a height adjustment knob 2 installed at the bottom of the foot pad body 1. By rotating the knob 21 or by using a hexagonal key, the overall height of the adjustable height foot pad device 100 can be changed, so that the desks and chairs can be placed stably on uneven ground.

[0034] The bottom of the main body 1 of the foot pad is equipped with an anti-slip and sound-absorbing pad 3, which makes the desks and chairs quiet and anti-slip.

[0035] The main body 1 of the foot pad is provided with screw holes 111, which can be screwed into the screw holes 111 to fix it to the leg tube 200 of the desk and chair, making assembly convenient.

[0036] In summary, although the present invention has been disclosed above with reference to preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those skilled in the art can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the scope defined in the claims.

Claims

1. An adjustable height foot mat device for mounting to a leg tube of a desk chair to adjust the levelness of the desk chair, characterized by, Includes the main body of the foot pad, height adjustment knob, and anti-slip and noise-reducing pad; The foot pad body is used to connect with the foot tube; The height adjustment knob includes a rotary knob and a stud. The rotary knob is located on the bottom surface of the foot pad body. The stud is vertically arranged, with its bottom end fixedly connected to the rotary knob, and the stud is threadedly connected to the foot pad body. The anti-slip and noise-reducing pad is made of soft material and is fixedly connected to the bottom surface of the main body of the foot pad, located on the horizontal side of the rotary knob.

2. The height adjustable foot cushion device of claim 1, wherein, The main body of the foot pad is formed by in-mold injection molding, and it has internal and external threaded nuts embedded in it. The internal and external threaded nuts are made of metal, and the stud is threadedly connected to the internal and external threaded nuts.

3. The height adjustable foot cushion device of claim 1, wherein, The bottom surface of the stud is exposed at the bottom surface of the rotary knob and is provided with a hexagonal hole.

4. The height adjustable foot cushion device of claim 1, wherein, The stud is made of metal, and the rotary knob is made of engineering plastic. The stud and the rotary knob are integrally injection molded in the mold.

5. The height adjustable foot cushion device of claim 1, wherein, The anti-slip and silent pad is made of a soft material with a high coefficient of friction, and its bottom is provided with mesh anti-slip protrusions.

6. The height adjustable foot cushion device of claim 1, wherein, The bottom surface of the foot pad body is provided with blind holes, and the anti-slip and sound-absorbing pad is adhered to the blind holes and protrudes from the bottom surface of the foot pad body.

7. The height adjustable foot cushion device according to any of claims 1-6, characterized in that, The foot tube is horizontally arranged and has an open end; the foot pad body includes a support foot and a sealing plug, the support foot is connected to the bottom of the foot tube; the sealing plug is disposed at the top end of the support foot and is inserted into the end opening of the foot tube; The height adjustment knob and the anti-slip and noise-reducing pad are arranged along the length of the foot tube and are located at the bottom of the support foot. The height adjustment knob is located at the end of the foot tube relative to the anti-slip and noise-reducing pad.

8. The height adjustable foot cushion device of claim 7, wherein, The sealing plug includes an insertion part and a sealing part. The insertion part is annular and is inserted into the foot tube. The sealing part is fixed to one end of the insertion part and is located outside the foot tube. The outer peripheral surface of the sealing part is aligned with the outer peripheral surface of the foot tube and is connected to the support foot. The top of the support leg is provided with a reinforcing block, and an internal or external threaded nut for connecting the stud is embedded in the reinforcing block. The reinforcing block is connected to the bottom of the insertion part and the inner side of the sealing plug, and the reinforcing block extends into the ring of the insertion part. A notch is provided on the bottom side of the end of the leg tube, and the reinforcing block is inserted into the notch.

9. The height adjustable foot cushion device of claim 7, wherein, The support foot is provided with a screw through hole and is fixed to the bottom of the foot tube by a screw; the screw through hole is located between the height adjustment knob and the anti-slip and silent pad.

10. A type of school desk and chair, characterized in that, Includes a foot tube and an adjustable height foot pad device as described in any one of claims 1-9, wherein the foot pad body is connected to the foot tube.

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