Ultrathin leakage-proof fastener

Abstract

The utility model provides an ultra-thin leakage-proof fastener which comprises a threaded cylinder, a connecting rod and a connecting rod. A screw rod is in threaded connection with the interior of the threaded cylinder, a limiting block is fixedly connected to the left end of the screw rod, a first rubber ring is fixedly connected to the left end of the threaded cylinder, the first rubber ring is in sliding connection with the screw rod, an extrusion ring is fixedly connected to the left end of the first rubber ring, and the extrusion ring is in sliding connection with the screw rod. According to the ultrathin leakage-proof fastener, the threaded cylinder is connected to the fastening position in a threaded mode, the extrusion ring and the first rubber ring are located on the back face of the fastening position, at the moment, the screw rod is rotated to enable the limiting block to extrude the extrusion ring, at the moment, the extrusion ring extrudes the first rubber ring, and the first rubber ring is extruded to deform; the deformed first rubber ring can seal the fastening position, and the fastening position can be sealed very conveniently through the structure, so that the fastening position is not prone to water leakage.

Description

TECHNICAL FIELD

[0001] The utility model relates to fastener technical field especially relates to super thin leakproof fastener. BACKGROUND

[0002] Fastener is a kind of mechanical parts widely used for fastening connection. Fastener is widely used in various industries, including energy, electronics, electrical appliances, machinery, chemical industry, metallurgy, mould, hydraulic industry and other industries. It can be seen in various fasteners on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemical industry, instruments and supplies, etc. Fastener is the most widely used mechanical basic part. It has many varieties and specifications, different performance and purpose, and high standardization, serialization and generalization.

[0003] In the technical field of fastener, the existing part fastener has poor sealing effect when in use, especially in water conservancy facilities, the fastening part is prone to water leakage.

[0004] Therefore, it is necessary to provide super thin leakproof fastener to solve the above technical problems. INVENTION CONTENTS

[0005] The utility model provides super thin leakproof fastener, solve the fastener when in use Sealing effect is poor, especially in water conservancy facilities, the fastening part is prone to water leakage problem.

[0006] To solve the above technical problems, the super thin leakproof fastener provided by the utility model comprises a threaded barrel;

[0007] The threaded barrel is internally threadedly connected with a lead screw, the left end of the lead screw is fixedly connected with a limiting block, the left end of the threaded barrel is fixedly connected with a first rubber ring, the first rubber ring is slidably connected with the lead screw, the left end of the first rubber ring is fixedly connected with a pressing ring, and the pressing ring is slidably connected with the lead screw.

[0008] Preferably, the right end of the lead screw is fixedly connected with a hexagonal block, which facilitates the rotation of the lead screw.

[0009] Preferably, the threaded barrel is threadedly connected with a positioning ring on the side surface, and the positioning ring can position the installation depth of the threaded barrel.

[0010] Preferably, the threaded barrel is sleeved with a second rubber ring on the side surface, and the second rubber ring can be sealed by the pressing of the positioning ring.

[0011] Preferably, the lead screw is threadedly connected with a pressing ring on the side surface.

[0012] Preferably, a third rubber ring is fitted around the circumferential side of the lead screw, and the third rubber ring can be sealed to the right end of the threaded cylinder by the compression ring.

[0013] Compared with related technologies, the ultra-thin leak-proof fastener provided by this utility model has the following beneficial effects:

[0014] This utility model provides an ultra-thin leak-proof fastener. A threaded cylinder is threadedly connected to the fastening point, with the compression ring and the first rubber ring positioned on the back of the fastening point. Rotating the screw causes the limiting block to compress the compression ring, which in turn compresses the first rubber ring, causing it to deform. This deformed first rubber ring seals the fastening point. This structure facilitates sealing the fastening point, preventing leaks. Before fastening, the thickness of the fastening point is measured. Then, the positions of the positioning ring and the second rubber ring are adjusted by rotating the positioning ring. When the second rubber ring is in contact with the positioning ring, and the length of the threaded cylinder on the left side of the second rubber ring is the same as the back length of the fastening point, the threaded cylinder is installed and tightened. After installation, the right side of the first rubber ring is flush with the inner side of the fastening point. The deformed first rubber ring then adheres tightly to the fastening point, sealing the inner side. Finally, the positioning ring and compression ring are rotated, allowing the second and third rubber rings to seal the fastening point and the right side of the fastener, respectively. Attached Figure Description

[0015] Figure 1 A schematic diagram of a preferred embodiment of the ultra-thin leak-proof fastener provided by this utility model;

[0016] Figure 2 for Figure 1 The diagram shows the structure of the threaded cylinder and lead screw.

[0017] Figure 3 for Figure 1 The diagram shows the exploded structure of the lead screw and the first rubber ring.

[0018] The following are the labels in the diagram: 1. Threaded cylinder; 2. Lead screw; 3. Limiting block; 4. First rubber ring; 5. Extrusion ring; 6. Hexagonal block; 7. Positioning ring; 8. Second rubber ring; 9. Extrusion ring; 10. Third rubber ring. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Please refer to the following: Figure 1 , Figure 2 and Figure 3 ,in Figure 1 A schematic diagram of a preferred embodiment of the ultra-thin leak-proof fastener provided by this utility model; Figure 2 for Figure 1Structure diagram of the illustrated threaded cylinder and screw rod is shown; Figure 3 For Figure 1 Structure diagram of the illustrated screw rod and first rubber ring is shown, the ultra-thin leak-proof fastener comprises a threaded cylinder 1;

[0021] The threaded cylinder 1 is internally threadedly connected with a screw rod 2, the left end of the screw rod 2 is fixedly connected with a limiting block 3, the left end of the threaded cylinder 1 is fixedly connected with a first rubber ring 4, the first rubber ring 4 is slidably connected with the screw rod 2, the left end of the first rubber ring 4 is fixedly connected with a pressing ring 5, and the pressing ring 5 is slidably connected with the screw rod 2.

[0022] The right end of the screw rod 2 is fixedly connected with a hexagonal block 6, and the hexagonal block 6 is beneficial to rotating the screw rod 2.

[0023] The circumferential surface of the threaded cylinder 1 is threadedly connected with a positioning ring 7, the positioning ring 7 can position the installation depth of the threaded cylinder 1, and the threaded cylinder 1 is prevented from being installed too deep and affecting the sealing effect through the positioning ring 7.

[0024] The circumferential surface of the threaded cylinder 1 is sleeved with a second rubber ring 8, and the second rubber ring 8 can be sealed at the fastening position through the pressing of the positioning ring 7.

[0025] The circumferential surface of the screw rod 2 is threadedly connected with a pressing ring 9.

[0026] The circumferential surface of the screw rod 2 is sleeved with a third rubber ring 10, and the third rubber ring 10 can be sealed at the right end of the threaded cylinder 1 through the pressing of the pressing ring 9.

[0027] The working principle of the ultra-thin leak-proof fastener is as follows:

[0028] First step: in use, the threaded cylinder 1 is threadedly connected at the fastening position, and the pressing ring 5 and the first rubber ring 4 are located at the back of the fastening position, at this time, rotating the screw rod 2 can make the limiting block 3 press the pressing ring 5, at this time, the pressing ring 5 presses the first rubber ring 4, the first rubber ring 4 is deformed by pressing, and the deformed first rubber ring 4 can seal the fastening position.

[0029] Second step: before fastening, the thickness of the fastening position is measured, then the position of the positioning ring 7 and the second rubber ring 8 is adjusted by rotating the positioning ring 7, when the second rubber ring 8 is attached to the positioning ring 7, the length of the left side of the threaded cylinder 1 is equal to the thickness of the fastening position, then the threaded cylinder 1 is installed and fastened, at this time, the right side of the first rubber ring 4 is flush with the inside of the fastening position after the threaded cylinder 1 is installed, at this time, the first rubber ring 4 is tightly attached to the fastening position after deformation, and the inside of the fastening position is sealed, then the positioning ring 7 and the pressing ring 9 are rotated, at this time, the second rubber ring 8 and the third rubber ring 10 can respectively seal the fastening position and the right side of the fastener.

[0030] Compared with the related art, the ultra-thin leakage-proof fastener has the following beneficial effects:

[0031] The threaded cylinder 1 is screwed at the fastening position, and the extrusion ring 5 and the first rubber ring 4 are located at the back of the fastening position; at this time, rotating the lead screw 2 can extrude the extrusion ring 5 by the limiting block 3; at this time, the extrusion ring 5 extrudes the first rubber ring 4, and the first rubber ring 4 is extruded and deformed; the deformed first rubber ring 4 can seal the fastening position; the structure is very convenient for sealing the fastening position, so that the fastening position is not easy to leak water; before fastening, the thickness of the fastening position is measured, then the position of the positioning ring 7 and the second rubber ring 8 is adjusted by rotating the positioning ring 7; when the second rubber ring 8 is attached to the positioning ring 7, the length of the threaded cylinder 1 at the left side of the second rubber ring 8 is the same as the thickness of the fastening position; then the threaded cylinder 1 is installed and fastened; at this time, the right side of the first rubber ring 4 is flush with the inside of the fastening position after the threaded cylinder 1 is installed; at this time, the first rubber ring 4 is tightly attached to the fastening position after deformation, and seals the inside of the fastening position; then the positioning ring 7 and the extrusion ring 9 are rotated; at this time, the second rubber ring 8 and the third rubber ring 10 seal the fastening position and the right side of the fastener, respectively.

[0032] The above is only an embodiment of the present application, and does not limit the patent range of the present application; any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is made by using the content of the present application specification and drawings, is also included in the patent protection range of the present application.

Claims

1. An ultra-thin leakproof fastener, characterized by, Include: Threaded barrel (1); The screw rod (2) is internally threaded and connected with the threaded barrel (1), the left end of the screw rod (2) is fixedly connected with the limiting block (3), the left end of the threaded barrel (1) is fixedly connected with the first rubber ring (4), the first rubber ring (4) is slidably connected with the screw rod (2), the left end of the first rubber ring (4) is fixedly connected with the extrusion ring (5), and the extrusion ring (5) is slidably connected with the screw rod (2).

2. The ultra-thin leakproof fastener of claim 1, wherein, The right end of the screw rod (2) is fixedly connected with the hexagonal block (6), which is conducive to the rotation of the screw rod (2).

3. The ultra-thin leakproof fastener of claim 2, wherein, The threaded barrel (1) is connected with the positioning ring (7) on the side surface, and the installation depth of the threaded barrel (1) can be positioned by the positioning ring (7).

4. The ultra-thin leakproof fastener of claim 3, wherein, The threaded barrel (1) is connected with the second rubber ring (8) on the side surface, and the fastening part can be sealed by extruding the second rubber ring (8) through the positioning ring (7).

5. The ultra-thin leakproof fastener of claim 4, wherein, The screw rod (2) is connected with the extrusion ring (9) on the side surface.

6. The ultra-thin leakproof fastener of claim 5, wherein, The third rubber ring (10) is sleeved on the side surface of the screw rod (2), and the third rubber ring (10) is extruded by the extrusion ring (9) to seal the right end of the threaded barrel (1).

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