A blasting hole sealing waterproof cover device

By designing elastic sealing rings and drainage structures that adapt to different orifice diameters, the problems of poor adaptability and inconvenient drainage in existing burst hole sealing devices have been solved, thereby improving the sealing effect and operational efficiency.

CN224382301UActive Publication Date: 2026-06-19YUNNAN GEOLOGY & MINERAL RESOURCES CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN GEOLOGY & MINERAL RESOURCES CONSTR ENG CO LTD
Filing Date
2025-07-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing blast hole sealing devices have poor adaptability, making it difficult to adapt to orifices of different diameters, and lack convenient drainage functions, which affects the sealing effect and subsequent operations.

Method used

A device comprising a cover and an elastic sealing ring is designed. The radial dimension of the elastic sealing ring is adjusted by a control component to adapt to different orifice diameters. A drain hole and a plug are provided in the cover to facilitate the drainage of accumulated water.

Benefits of technology

It achieves sealing adaptation for different orifice diameters, ensuring sealing performance, and avoids water accumulation affecting subsequent operations through drainage structure, thereby improving operational convenience and sealing reliability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224382301U_ABST
    Figure CN224382301U_ABST
Patent Text Reader

Abstract

This utility model discloses a waterproof sealing cap device for burst holes, including a cap body and an elastic sealing ring disposed on the outer surface of the cap body. The outer surface of the cap body has a sealing groove adapted to the elastic sealing ring. Inside the cap body is a control component for pulling the elastic sealing ring to contract. The control component includes a spring, which is fixedly installed inside the cap body. A movable block is fixedly installed on one side of the spring, and a limiting rod is fixedly inserted inside the movable block. An arc-shaped plate is fixedly installed at one end of the limiting rod, and the outer surface of the arc-shaped plate is connected to the inner wall of the elastic sealing ring. The function of this utility model is to achieve radial expansion and contraction of the sealing ring by setting four sets of symmetrical control components, adapting to burst holes of different diameters, solving the problem of poor adaptability of traditional devices, and improving the sealing effect.
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Description

Technical Field

[0001] This utility model relates to the field of blasting auxiliary equipment technology, specifically a blasting hole sealing and waterproof cover device. Background Technology

[0002] During blasting operations, the borehole opening must be sealed and protected from the time the blasting hole is drilled until the blasting operation begins. This is to prevent rainwater, surface water, or debris from entering the hole. If water enters the blasting hole, the explosive may become damp and ineffective, affecting the blasting effect. If debris enters, it may block the hole and interfere with the charging operation.

[0003] In the process of achieving the above, the inventors discovered that the technology has at least the following problems: In the prior art, the blast hole sealing device mostly uses a single-size rubber cover and achieves sealing through interference fit. However, in actual construction, the diameter of the blast hole has a processing error of ±3-5mm. The single-size cover is difficult to adapt to the orifice of different diameters, which easily leads to the problem of poor sealing. At the same time, some sealing devices lack convenient drainage function. If there is water accumulation in the hole beforehand, the water cannot be drained after sealing, which will still affect subsequent operations.

[0004] Therefore, this utility model proposes a waterproof sealing cover device for rupture holes. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a blast hole sealing and waterproof cover device, which solves the problems of poor adaptability to different hole diameters, difficulty in draining water from the hole, and inconvenience in operation of some existing blast hole sealing devices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rupture hole sealing waterproof cover device, comprising a cover body and an elastic sealing ring disposed on the outer surface of the cover body, wherein a sealing groove adapted to the elastic sealing ring is provided on the outer surface of the cover body, and a control component for pulling the elastic sealing ring to contract is provided inside the cover body.

[0007] The control component includes a spring, which is fixedly installed inside the cover. A movable block is fixedly installed on one side of the spring. A limiting rod is fixedly inserted inside the movable block. An arc-shaped plate is fixedly installed at one end of the limiting rod. The outer surface of the arc-shaped plate is connected to the inner wall of the elastic sealing ring.

[0008] Through the above technical solution, the radial dimension of the elastic sealing ring can be adjusted by the control component. When the limit rod is pulled, the arc plate causes the elastic sealing ring to contract, making it easier for the cover to be inserted into the orifice. After the limit rod is released, the spring resets and pushes the moving block, causing the arc plate to squeeze the elastic sealing ring outward to achieve a tight fit with the orifice wall, adapting to blasting holes of different diameters.

[0009] Preferably, the cover has a drainage hole inside, and the inner wall of the drainage hole inside the cover is threaded with a plug, and a rubber sealing plug that matches the drainage hole is fixedly installed at one end of the plug.

[0010] With the above technical solution, when there is water accumulation in the hole, the hole plug can be unscrewed to allow the water to drain out through the drain hole; after drainage is completed, the hole plug can be screwed back on, and the rubber sealing plug can ensure the sealing of the drain hole and prevent external water from entering.

[0011] Preferably, the outer side of the cover is provided with a control groove that communicates with the outside, and the end of the limiting rod away from the arc plate passes through the control groove and is fixedly connected with a pull ring.

[0012] Through the above technical solution, the pull ring provides the operator with a point of force application, making it easier to pull the limit rod in the control groove, thereby adjusting the contraction state of the elastic sealing ring, making the operation more convenient.

[0013] Preferably, the number of control components is four sets, and the four sets of control components are symmetrically arranged in pairs inside the cover.

[0014] Through the above technical solution, the four symmetrically distributed control components can ensure that the elastic sealing ring is subjected to uniform force, ensuring that the ring structure remains stable when it expands or contracts radially, thereby improving the reliability of the seal.

[0015] Preferably, sliders are fixedly installed on both sides of the movable block, and the inside of the cover is provided with a groove that matches the sliders.

[0016] Through the above technical solution, the cooperation between the slider and the groove can limit the movement trajectory of the moving block, prevent it from deviating or rotating during the sliding process, and ensure the stable operation of the control component.

[0017] Preferably, a finger ring is fixedly installed at the end of the hole plug away from the rubber sealing plug.

[0018] The above technical solution makes the ring easy for operators to hold and rotate the plug, making the opening and closing of the drain hole easier.

[0019] Preferably, the inner wall of the control groove inside the cover is provided with a rubber sealing baffle, and a hand-pull column is fixedly installed on the outer side of the rubber sealing baffle.

[0020] Through the above technical solution, the rubber sealing baffle can seal the control groove, preventing rainwater and dust from entering the cover and affecting the operation of the control components. The hand-pulled column makes it easy to open the rubber sealing baffle.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. This utility model, by setting four sets of symmetrical control components, uses the elasticity of springs to push the arc plate to squeeze the elastic sealing ring, which can realize the radial expansion and contraction of the sealing ring, adapt to burst holes of different diameters, solve the problem of poor adaptability of traditional devices, and improve the sealing effect.

[0023] 2. This utility model, by setting a drainage hole, a hole plug and a rubber sealing plug on the cover, can drain the water accumulated in the hole before sealing, avoid water accumulation affecting subsequent operations, and at the same time ensure the sealing performance after drainage, making the function more complete. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a schematic diagram of the elastic sealing ring structure of this utility model;

[0027] Figure 3 This is a side view sectional structural diagram of the present invention;

[0028] Figure 4 This is a frontal cross-sectional view of the present invention.

[0029] Figure 5 This is a schematic diagram of the plug structure of this utility model;

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Cover; 2. Elastic sealing ring; 3. Spring; 4. Moving block; 5. Limiting rod; 6. Arc plate; 7. Hole plug; 8. Rubber sealing plug; 9. Pull ring; 10. Slider; 11. Finger ring; 12. Rubber sealing baffle. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example 1

[0033] like Figures 1 to 4As shown, the existing technology in this embodiment has the following problems: The inventors have found at least the following issues in this technology: In the existing technology, blast hole sealing devices mostly use a single-size rubber cap, achieving sealing through interference fit. However, in actual construction, the blast hole diameter has a processing error of ±3-5mm, making it difficult for a single-size cap to fit orifices of different diameters, easily leading to incomplete sealing. Simultaneously, some sealing devices lack convenient drainage functions; if water is pre-existing in the hole, it cannot drain after sealing, still affecting subsequent operations. Therefore, we propose a waterproof blast hole sealing cap device.

[0034] Therefore, please see Figures 1 to 5 The inventor provides a rupture hole sealing waterproof cover device, including a cover body 1 and an elastic sealing ring 2 disposed on the outer surface of the cover body 1. The outer surface of the cover body 1 is provided with a sealing groove adapted to the elastic sealing ring 2. The cover body 1 is provided with a control component for pulling the elastic sealing ring 2 to contract. There are four sets of control components, and the four sets of control components are symmetrically arranged in pairs inside the cover body 1. The four sets of symmetrically distributed control components can make the elastic sealing ring 2 subjected to uniform force, ensuring that its annular structure remains stable when it expands or contracts radially, and improving the reliability of the seal.

[0035] Please refer to Figure 1 and Figure 4 The control component includes a spring 3, which is fixedly installed inside the cover 1. A movable block 4 is fixedly installed on one side of the spring 3. A limiting rod 5 is fixedly inserted inside the movable block 4. An arc-shaped plate 6 is fixedly installed at one end of the limiting rod 5. The outer surface of the arc-shaped plate 6 is connected to the inner wall of the elastic sealing ring 2. A control groove communicating with the outside is opened on the outer side of the cover 1. The end of the limiting rod 5 away from the arc-shaped plate 6 passes through the control groove and is fixedly connected to a pull ring 9. The pull ring 9 provides a force point for the operator to pull the limiting rod 5 in the control groove, thereby adjusting the contraction state of the elastic sealing ring 2, making the operation more convenient.

[0036] Furthermore, sliders 10 are fixedly installed on both opposite sides of the movable block 4. A groove adapted to the slider 10 is provided inside the cover 1. The cooperation between the slider 10 and the groove restricts the movement trajectory of the movable block 4, preventing it from shifting or rotating during sliding, thus ensuring stable operation of the control component. A rubber sealing baffle 12 is provided on the inner wall of the control groove inside the cover 1. A pull post is fixedly installed on the outer side of the rubber sealing baffle 12. The rubber sealing baffle 12 seals the control groove, preventing rainwater and dust from entering the cover 1 and affecting the operation of the control component. The pull post facilitates opening the rubber sealing baffle 12.

[0037] Please refer to Figure 1 and Figure 5The cover 1 has a drainage hole inside, and a plug 7 is threaded onto the inner wall of the drainage hole. A rubber sealing plug 8, which is compatible with the drainage hole, is fixedly installed at one end of the plug 7. When water accumulates in the hole, the plug 7 can be unscrewed to allow the water to drain through the drainage hole. After drainage, the plug 7 can be screwed back on. The rubber sealing plug 8 ensures the sealing of the drainage hole and prevents external water from entering. A finger ring 11 is fixedly installed at the end of the plug 7 away from the rubber sealing plug 8. The finger ring 11 makes it easier for the operator to grip and rotate the plug 7, making the opening and closing of the drainage hole easier. Example 2

[0038] Based on the above embodiments, the inventors have applied them in practice, and the specific application and working principle are as follows:

[0039] First, before installation, pull open the rubber sealing baffle 12 in the control slot using the hand pull column. Hold the pull ring 9 and pull the limiting rod 5 outward. The moving block 4 slides along the slide groove and compresses the spring 3. The arc plate 6 moves inward with the limiting rod 5, causing the elastic sealing ring 2 to contract. At this time, align the cover 1 with the rupture hole and insert it. Then, release the pull ring 9. The spring 3 returns to its original position and pushes the moving block 4. The slider 10 returns to its original position along the slide groove. The arc plate 6 squeezes the elastic sealing ring 2 to expand outward until the elastic sealing ring 2 tightly fits the hole wall, completing the seal. Finally, push the rubber sealing baffle 12 to close the control slot, ensuring that external water and dust cannot enter.

[0040] To drain the water from the hole, the plug 7 can be unscrewed using the ring 11. The rubber sealing plug 8 will then detach from the drain hole along with the plug 7, allowing the water to flow out through the drain hole. After draining, the ring 11 can be screwed in the opposite direction to reset the plug 7 and the rubber sealing plug 8, sealing the drain hole. To disassemble, the rubber sealing baffle 12 can be pulled open repeatedly and the pull ring 9 can be pulled to retract the elastic sealing ring 2, allowing the cover 1 to be removed from the hole.

[0041] In summary, this blast hole sealing and waterproof cover device achieves adaptive expansion and contraction of the elastic sealing ring 2 through control components to adapt to different hole diameters; solves the problem of water accumulation in the hole through a drainage structure; and improves operational efficiency through convenient operation components, effectively addressing the shortcomings of existing technologies.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof sealing cap device for blasting hole, comprising a cap body (1) and an elastic sealing ring (2) arranged on the outer surface of the cap body (1), characterized in that: The outer surface of the cover (1) is provided with a sealing groove that is compatible with the elastic sealing ring (2), and the inside of the cover (1) is provided with a control component for pulling the elastic sealing ring (2) to retract. The control component includes a spring (3), which is fixedly installed inside the cover (1). A moving block (4) is fixedly installed on one side of the spring (3). A limiting rod (5) is fixedly inserted inside the moving block (4). An arc plate (6) is fixedly installed at one end of the limiting rod (5). The outer surface of the arc plate (6) is connected to the inner wall of the elastic sealing ring (2).

2. The blast hole sealing and waterproof cover device according to claim 1, characterized in that: The cover (1) has a drainage hole inside. The inner wall of the drainage hole inside the cover (1) is threaded with a plug (7). One end of the plug (7) is fixedly installed with a rubber sealing plug (8) that is compatible with the drainage hole.

3. The blast hole sealing and waterproof cover device according to claim 1, characterized in that: The outer side of the cover (1) is provided with a control groove that communicates with the outside. The end of the limiting rod (5) away from the arc plate (6) passes through the control groove and is fixedly connected with a pull ring (9).

4. The blast hole sealing and waterproof cover device according to claim 1, characterized in that: The number of control components is four, and the four control components are symmetrically arranged in pairs inside the cover (1).

5. The blast hole sealing and waterproof cover device according to claim 1, characterized in that: The movable block (4) is fixedly installed with sliders (10) on both sides, and the cover (1) has a groove inside that is adapted to the sliders (10).

6. The blast hole sealing and waterproof cover device according to claim 2, characterized in that: A finger ring (11) is fixedly installed at the end of the plug (7) away from the rubber sealing plug (8).

7. The blast hole sealing and waterproof cover device according to claim 3, characterized in that: The inner wall of the control groove inside the cover (1) is provided with a rubber sealing baffle (12), and a hand-pulled column is fixedly installed on the outer side of the rubber sealing baffle (12).