Anti-friction footing screw

Abstract

The utility model discloses an anti-friction footing screw which comprises a screw rod body, a fixing piece is fixedly connected to the side wall of the screw rod body, a contact mechanism used for making contact with the ground is arranged below the screw rod body and comprises a sleeve arranged on the side wall of the screw rod body, and a nut is fixedly connected to the lower end of the sleeve. An injection molding anti-skid sleeve is arranged on the side wall of the nut, and the sleeve is in threaded connection with the screw rod body. The contact mechanism is arranged, the injection molding anti-skid sleeve is detachably connected with the screw rod body, the injection molding anti-skid sleeve can be independently replaced, the long screw rod body does not need to be detached, cost can be saved, maintenance can be convenient, and therefore the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottom screws, in particular to an anti-friction bottom screw. Background Art

[0002] The bottom screw is an important fastener, usually used to fix equipment, machinery or structures on the ground or other bases. Its main function is to provide stable support for the equipment and prevent the equipment from moving or shaking during operation.

[0003] The bottom of the existing vending machines is equipped with anti-friction bottom screws to support the vending machine and play a role in anti-slip and anti-friction. However, many vending machines are installed not only indoors but also outdoors. The vending machine and the bottom screws are exposed to the sun for a long time, and the service life of the injection molded parts at the bottom of the screws is greatly shortened. Moreover, the screw rod is very long. When the injection molded parts are damaged, the whole screw needs to be replaced, which is not only costly but also very troublesome. To solve the above problems, we propose this anti-friction bottom screw. Content of the Utility Model

[0004] The main purpose of the utility model is to provide an anti-friction bottom screw, which can effectively solve the problems in the background art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An anti-friction bottom screw includes a screw rod main body. A fixing piece is fixedly connected to the side wall of the screw rod main body. A contact mechanism for contacting the ground is arranged below the screw rod main body. The contact mechanism includes a sleeve arranged on the side wall of the screw rod main body. A nut is fixedly connected to the lower end of the sleeve. An injection molded anti-slip sleeve is arranged on the side wall of the nut. The sleeve is threadedly connected to the screw rod main body. A protection mechanism for protecting the injection molded anti-slip sleeve is arranged on the side wall of the fixing piece.

[0007] Preferably, the protection mechanism includes a sliding cylinder slidably connected to the side wall of the fixing piece, and a protection cylinder is arranged on the side wall of the sliding cylinder.

[0008] Preferably, the protection cylinder is made of polytetrafluoroethylene material, and the protection cylinder is threadedly connected to the sliding cylinder.

[0009] Preferably, a plurality of fixing blocks are fixedly connected to the side wall of the sliding cylinder, and the cross section of the protection cylinder is circular.

[0010] Preferably, a sealing groove is opened at the lower end of the protection cylinder, and a sealing ring is arranged in the sealing groove.

[0011] Preferably, the cross section of the fixing piece is hexagonal, and the inner cross section of the sliding cylinder is also hexagonal.

[0012] Preferably, the fixing piece is made of metal, and the thickness of the fixing piece is greater than that of the sliding cylinder.

[0013] Preferably, a plurality of the fixing blocks are arranged at equal intervals, and the fixing blocks are made of plastic.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The device is provided with a contact mechanism, and the injection-molded anti-slip sleeve is detachably connected to the screw body, so that the injection-molded anti-slip sleeve can be replaced separately without disassembling the long screw body, which can not only save costs but also facilitate maintenance, thereby improving the practicability of the device;

[0016] 2. The device is provided with a protection mechanism. After the container is put down, the protection cylinder can protect the injection-molded anti-slip sleeve from being exposed to the sun for a long time and soaked in accumulated water, thereby greatly improving the service life of the injection-molded anti-slip sleeve;

[0017] 3. The device is provided with a sealing ring, which can greatly improve the sealing performance of the protection cylinder, avoid long-term accumulation of water stains near the injection-molded anti-slip sleeve and accelerate its corrosion speed, and further improve the service life of the injection-molded anti-slip sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an anti-friction bottom foot screw proposed by the utility model;

[0019] Figure 2 is Figure 1 the front view of;

[0020] Figure 3 is Figure 1 the side view of;

[0021] Figure 4 is Figure 1 the bottom view of;

[0022] Figure 5 is Figure 1 the top view of.

[0023] In the figure: 1 screw body, 2 sleeve, 3 nut, 4 injection-molded anti-slip sleeve, 5 fixing piece, 6 sliding cylinder, 7 protection cylinder, 8 sealing groove, 9 sealing ring, 10 fixing block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with specific embodiments.

[0025] Such as Figures 1-5As shown in the figure, an anti-friction bottom screw includes a screw rod main body 1. A fixing piece 5 is fixedly connected to the side wall of the screw rod main body 1. A contact mechanism for contacting the ground is provided below the screw rod main body 1. The contact mechanism includes a sleeve 2 arranged on the side wall of the screw rod main body 1. A nut 3 is fixedly connected to the lower end of the sleeve 2. An injection-molded anti-slip sleeve 4 is arranged on the side wall of the nut 3. The sleeve 2 is threadedly connected to the screw rod main body 1.

[0026] A protection mechanism for protecting the injection-molded anti-slip sleeve 4 is arranged on the side wall of the fixing piece 5. The protection mechanism includes a sliding cylinder 6 slidably connected to the side wall of the fixing piece 5. A protection cylinder 7 is arranged on the side wall of the sliding cylinder 6.

[0027] In the present utility model, the protection cylinder 7 is made of polytetrafluoroethylene material. The polytetrafluoroethylene material has extremely high weather resistance and anti-ultraviolet performance and is hardly affected by any environmental factors, which can greatly improve the sun protection effect of the injection-molded anti-slip sleeve 4. The protection cylinder 7 is threadedly connected to the sliding cylinder 6, so that the protection cylinder 7 can be detached separately, and it is not necessary to disassemble the whole screw after the protection cylinder 7 is broken.

[0028] In the present utility model, a plurality of fixing blocks 10 are fixedly connected to the side wall of the sliding cylinder 6. After the screw has been installed under the container, the upper half of the sliding cylinder 6 can be held by pinching the two fixing blocks 10, which is convenient for screwing out the protection cylinder 7. The cross section of the protection cylinder 7 is circular. The circular protection cylinder 7 can not only protect the injection-molded anti-slip sleeve 4, but also save space.

[0029] In the present utility model, a sealing groove 8 is opened at the lower end of the protection cylinder 7, and a sealing ring 9 is arranged in the sealing groove 8, which can greatly improve the sealing performance of the protection cylinder 7 and avoid the water stains accumulating near the injection-molded anti-slip sleeve 4 for a long time, accelerating its corrosion speed.

[0030] In the present utility model, the cross section of the fixing piece 5 is hexagonal, and the inner circle cross section of the sliding cylinder 6 is also hexagonal, so that the sliding cylinder 6 can only slide on the fixing piece 5 and cannot rotate, which is convenient for screwing out the protection cylinder 7.

[0031] In the present utility model, the fixing piece 5 is made of metal. The fixing piece 5 bears the bottom of the container. The thickness of the fixing piece 5 is greater than the thickness of the sliding cylinder 6, which is convenient for rotating the injection-molded anti-slip sleeve 4 after the screw is installed under the container. After the protection cylinder 7 contacts the ground, the sliding cylinder 6 is still on the side wall of the fixing piece 5.

[0032] In the present utility model, the plurality of fixing blocks 10 are arranged at equal intervals, so that the fixing blocks 10 can be quickly felt by the operator. The fixing blocks 10 are made of plastic.

[0033] It should be noted that the present utility model is an anti-friction bottom foot screw. The user lifts one corner of the container, and screws the screw rod body 1 into the threaded hole of the container bottom foot by holding the injection-molded anti-slip sleeve 4. After putting down the container, the injection-molded anti-slip sleeve 4 contacts the ground and supports the container, which can prevent the container from slipping and being rubbed. When the injection-molded anti-slip sleeve 4 is worn or broken after long-term use, the user can lift the corner of the container, hold the fixing piece 5, and rotate the injection-molded anti-slip sleeve 4 in the reverse direction to take out the broken injection-molded anti-slip sleeve 4. Then, screw the sleeve 2 of the new injection-molded anti-slip sleeve 4 into the screw rod body 1, so that the injection-molded anti-slip sleeve 4 can be replaced individually without disassembling the long screw rod body 1, which can not only save costs but also facilitate maintenance;

[0034] After the container is put down, the protective cylinder 7 drops to the ground under the action of gravity, which can protect the injection-molded anti-slip sleeve 4 from being exposed to the sun for a long time and soaked in accumulated water, thus greatly improving the service life of the injection-molded anti-slip sleeve 4.

[0035] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An anti-friction foot screw, comprising a screw rod body (1), characterized in that, A fixing piece (5) is fixedly connected to the side wall of the screw main body (1). A contact mechanism for contacting the ground is provided below the screw main body (1). The contact mechanism includes a sleeve (2) arranged on the side wall of the screw main body (1). A nut (3) is fixedly connected to the lower end of the sleeve (2). An injection-molded anti-slip sleeve (4) is provided on the side wall of the nut (3). The sleeve (2) is threadedly connected to the screw main body (1). A protection mechanism for protecting the injection-molded anti-slip sleeve (4) is provided on the side wall of the fixing piece (5).

2. The anti-friction foot screw according to claim 1, characterized in that, The protection mechanism includes a sliding cylinder (6) slidably connected to the side wall of the fixing piece (5). A protection cylinder (7) is provided on the side wall of the sliding cylinder (6).

3. The anti-friction foot screw according to claim 2, wherein, The protection cylinder (7) is made of polytetrafluoroethylene material. The protection cylinder (7) is threadedly connected to the sliding cylinder (6).

4. The anti-friction foot screw according to claim 3, characterized in that, A plurality of fixing blocks (10) are fixedly connected to the side wall of the sliding cylinder (6). The cross section of the protection cylinder (7) is circular.

5. The anti-friction foot screw according to claim 4, characterized in that, A sealing groove (8) is formed at the lower end of the protection cylinder (7). A sealing ring (9) is arranged in the sealing groove (8).

6. The anti-friction bottom foot screw according to claim 5, characterized in that, The cross section of the fixing piece (5) is hexagonal. The inner circle cross section of the sliding cylinder (6) is also hexagonal.

7. The anti-friction foot screw according to claim 2, wherein The fixing piece (5) is made of metal. The thickness of the fixing piece (5) is greater than the thickness of the sliding cylinder (6).

8. The anti-friction foot screw according to claim 4, characterized in that, The plurality of fixing blocks (10) are arranged at equal intervals. The fixing blocks (10) are made of plastic.

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