Self-fastening waterproof bolt kit

Abstract

The utility model provides a self-fastening waterproof bolt suite. The self-fastening waterproof bolt suite comprises a bolt, a supporting sleeve frame and a movable nut block. The bolt comprises an end head and a screw rod, threads are arranged on the screw rod, and the diameter of the end head is larger than that of the screw rod; the supporting sleeve frame comprises a supporting circular ring, a sliding frame and sliding grooves, one end of the sliding frame is fixed to the supporting circular ring, the other end of the sliding frame horizontally extends in the axial direction of the supporting circular ring, and the sliding grooves are a pair of through grooves formed in the sliding frame and formed in the axial direction; a screw hole matched with the screw rod is formed in the center of the movable nut block, sliding rods clamped into the sliding grooves are arranged at the two ends of the movable nut block, and the movable nut block can horizontally slide along the sliding grooves and can also rotate around the sliding rods. The self-fastening waterproof bolt kit has the advantages of being capable of being installed on a closed structure and good in installation firmness.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproof bolts for municipal and power engineering, and specifically, to a self-fastening waterproof bolt kit. Background Art

[0002] Existing fastening bolts are mainly divided into ordinary nut bolt kits, self-tapping bolts, tensile rivet bolts, etc. The following are the specific disadvantages:

[0003] (1) It is impossible to install nuts on closed steel materials with ordinary nut bolt kits.

[0004] (2) Self-tapping bolts have no nut fastening and low tensile strength.

[0005] (3) Tensile rivet bolts have great installation limitations, limited tensile strength, and large layout workload.

[0006] In addition, some self-fastening bolts use additional tooth-like self-locking structures on nuts and screw rods to prevent loosening, which have good self-locking effects, but still difficult to solve the problem of installation on closed steel materials, and there are defects in installation flexibility. Content of the Utility Model

[0007] The purpose of the utility model is to overcome the deficiencies of the prior art, and thus provide a self-fastening waterproof bolt kit that can be installed on a closed structure and has good installation firmness.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is: a self-fastening waterproof bolt kit, including a bolt, a support sleeve frame, and a movable nut block;

[0009] The bolt includes a head and a screw rod, the screw rod is provided with threads, and the diameter of the head is greater than that of the screw rod;

[0010] The support sleeve frame includes a support ring, a sliding frame, and a sliding groove. One end of the sliding frame is fixed on the support ring, and the other end extends horizontally along the axial direction of the support ring. The sliding groove is a pair of axially arranged through grooves formed on the sliding frame;

[0011] A screw hole for fitting the screw rod is provided at the center of the movable nut block. Slide rods that are inserted into the sliding grooves are provided at both ends of the movable nut block. The movable nut block can slide horizontally along the sliding grooves and can also rotate around the slide rods.

[0012] Preferably, the sliding frames are arranged in pairs. The outer end face of a single sliding frame is an arc surface, and the outer end arc surfaces of the two sliding frames are on the same circumferential surface.

[0013] Preferably, a sealing gasket groove is provided at the outer end of the support ring, and a sealing gasket is sleeved on the bolt.

[0014] Preferably, the movable nut block is an eccentric metal block based on the sliding rod.

[0015] Preferably, a top head is provided at the outer end of the sliding rod, and the diameter of the top head is larger than the width of the sliding groove.

[0016] Preferably, the bolt and the movable nut block are both made of steel or iron.

[0017] Preferably, the sealing gasket is made of PVC plastic material.

[0018] Preferably, the length of the movable nut block is larger than the diameter of the support ring.

[0019] Preferably, the support sleeve frame is an integral structure as a whole.

[0020] Preferably, the support sleeve frame is made of stainless steel, cast iron or aluminum alloy.

[0021] The utility model has substantial features and progress compared with the prior art. Specifically, the support sleeve frame of the utility model is designed with a movable nut block and is designed as an integral structure. In a closed structure, holes can be drilled, and then the support sleeve frame is installed into the holes. After that, the movable nut block is rotated 90°, and then a bolt is screwed in and locked with the movable nut block to realize the installation on the nut side, solving the problem that there is no installation space and path for the nut in the closed structure.

[0022] In this form of multi-part complete set design, parts are not easily lost during the installation process, and the utilization efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the cooperation of a self-tightening waterproof bolt kit in the utility model.

[0024] Figure 2 is an assembly drawing of a self-tightening waterproof bolt kit in the utility model.

[0025] In the figure: 1. bolt; 2. support sleeve frame; 3. movable nut block; 4. sealing gasket; 11. end; 12. screw rod; 21. support ring; 22. sliding frame; 23. sliding groove; 31. screw hole; 32. sliding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The technical solution of the utility model will be further described in detail below through specific embodiments.

[0027] As Figure 1 and Figure 2 shown, a self-tightening waterproof bolt kit includes a bolt 1, a support sleeve frame 2 and a movable nut block 3.

[0028] The bolt 1 includes a head 11 and a screw rod 12. Threads are arranged on the screw rod 12. The diameter of the head 11 is greater than that of the screw rod 12. In this embodiment, the bolt is made of stainless steel. In other embodiments, iron materials can also be selected. The overall structure of the bolt 1 only has differences in specifications from traditional bolts.

[0029] The support sleeve 2 includes a support ring 21, a sliding frame 22, and a chute 23. One end of the sliding frame 22 is fixed to the support ring 21, and the other end extends horizontally along the axial direction of the support ring 21. The chute 23 is a pair of axially arranged through grooves formed on the sliding frame 22. In this embodiment, the support sleeve 2 is an integral structure, and the material of the support sleeve 2 is stainless steel or cast iron or aluminum alloy.

[0030] In this embodiment, the sliding frames 22 are arranged in pairs. The outer end face of a single sliding frame 22 is an arc surface, and the outer end arc surfaces of the two sliding frames 22 are on the same circumferential surface.

[0031] A gasket groove is provided at the outer end of the support ring 21. A gasket 4 is sleeved on the bolt 1. The material of the gasket is PVC plastic material.

[0032] A screw hole 31 for mating with the screw rod is provided at the center of the movable nut block 3. Slide rods 32 that are inserted into the chute are provided at both ends of the movable nut block 3. The movable nut block 3 can slide horizontally along the chute 23 and can also rotate around the slide rods 32. The movable nut block 3 is an eccentric metal block with the slide rods 32 as the reference, so that after being installed in place, it can be self-eccentric and flip 90° under its own weight. The length of the movable nut block 3 is greater than the diameter of the support ring 31, so that it can be stuck inside the closed structure.

[0033] To prevent the movable nut block 3 from slipping off, a top head is provided at the outer end of the slide rod 32. The diameter of the top head is greater than the width of the chute 23. The material of the movable nut block 3 is steel or iron material.

[0034] Technical principle description:

[0035] This self-tightening waterproof bolt kit is especially applicable to one-way installation environments with enclosed spaces, such as internally enclosed grounding terminals, temporary scaffolding, or cable brackets. Due to the enclosed internal space or limited space, there is no operating space or it is impossible to operate on the nut side. Before installing the bolt, if there is no installation hole in the installation structure, use a drilling machine to drill holes in advance; during installation, first insert the support sleeve rail into the installation hole. The movable nut block 3 deflects 90° under its own weight, or insert the bolt into the support sleeve rail. During the insertion process, the tail of the bolt abuts against the inclined surface at the edge of the sliding and rotating nut block, causing the nut block to rotate until the axial direction of the nut hole coincides with the axial direction of the bolt. Then rotate the bolt clockwise to make the nut block and the bolt thread engage and slide towards each other, as Figure 2 shown, and finally closely fit with the wall panel of the installation structure to achieve the effect of tightening on both sides.

[0036] It changes the traditional form of installing bolts and nuts facing each other. After installation, the effect is beautiful, safe and reliable, and the use performance is superior. And through on-site tests, the construction installation efficiency and quality have been greatly improved, fully meeting the use functions of photovoltaic brackets, grounding terminals, cable brackets, and temporary scaffolding, saving labor and shortening the construction period.

[0037] In the tightening of the grounding terminal, the present invention increases the contact area of the metal; in the installation of the temporary scaffolding, not only the installation tightness is good, but also good waterproof performance is ensured; in the installation of the cable bracket, the difficulty of operating in a narrow space is solved, and the layout form of the cable bracket is also optimized in reverse.

[0038] Relevant experimental verification work has been carried out for this solution. Relying on the 100,000 kW photovoltaic project supporting the 25,000 kW / 100,000 kW·h grid-connected energy storage in Liushuquan, there are many tasks such as bracket installation, component installation, and cable installation in this project. The bolt tightening work is numerous, and the subsequent maintenance work is frequent. This solution speeds up the speed and precision of relevant installation work during the construction process, ensures the construction quality, improves customer satisfaction, and has certain innovation and economic value.

[0039] Finally, it should be noted that: The above has made a detailed description of the preferred embodiment of this patent, but this patent is not limited to the above embodiment. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can also be made without departing from the purpose of this patent.

Claims

1. A self-tightening waterproof bolt kit, characterized in that: It includes a bolt, a support sleeve frame and a movable nut block; The bolt includes a head and a screw rod, a thread is arranged on the screw rod, and the diameter of the head is larger than that of the screw rod; The support sleeve frame includes a support ring, a sliding frame and a chute. One end of the sliding frame is fixed on the support ring, and the other end extends horizontally along the axial direction of the support ring. The chute is a pair of axially arranged through grooves formed on the sliding frame; A screw hole for mating with the screw rod is arranged at the center of the movable nut block. Slide bars that are inserted into the chute are arranged at both ends of the movable nut block. The movable nut block can slide horizontally along the chute and can also rotate around the slide bars.

2. The self-tightening waterproof bolt kit according to claim 1, characterized in that: The sliding frames are arranged in pairs. The outer end face of a single sliding frame is an arc surface, and the outer end arc surfaces of the two sliding frames are on the same circumferential surface.

3. The self-tightening waterproof bolt kit according to claim 2, wherein: A gasket groove is arranged at the outer end of the support ring, and a gasket is sleeved on the bolt.

4. The self-tightening waterproof bolt kit according to claim 2 or 3, characterized in that: The movable nut block is an eccentric metal block with the slide bars as the reference.

5. The self-tightening waterproof bolt kit according to claim 4, characterized in that: A top head is arranged at the outer end of the slide bar, and the diameter of the top head is larger than the width of the chute.

6. The self-tightening waterproof bolt kit according to claim 5, wherein: The bolt and the movable nut block are both made of steel or iron.

7. The self-tightening waterproof bolt kit according to claim 3, characterized in that: The gasket is made of PVC plastic material.

8. The self-tightening waterproof bolt kit according to claim 1 or 6, characterized in that: The length of the movable nut block is larger than the diameter of the support ring.

9. The self-tightening waterproof bolt kit according to claim 8, wherein: The support sleeve frame is an integral structure as a whole.

10. The self-tightening waterproof bolt kit according to claim 9, characterized in that: The support sleeve frame is made of stainless steel or cast iron or aluminum alloy.

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