Blast hole plugging device for earth-rock engineering blasting
By combining various blocking blocks with ergonomic handles, the limitations of existing devices in terms of extension range and hand strain are solved, achieving a sealing effect that adapts to different orifice diameters and provides comfortable operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-03-24
AI Technical Summary
Existing blast hole sealing devices for earthwork projects have limited range of extension and put a significant strain on the hand when rotated, affecting applicability and user comfort.
A device comprising a rotating plate, a threaded rod, a frustum-shaped sealing block, a threaded groove, a rubber layer, and a sponge sleeve was designed. By combining various sealing blocks, it can adapt to different hole diameters, and the ergonomically designed handle groove and sponge sleeve reduce the rotational burden.
It improves the flexibility and sealing effect of the device, extends the sealing length, increases the practicality and comfort of the device, and reduces the difficulty of operation.
Smart Images

Figure CN224034516U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to earthwork engineering technical field, concretely is a kind of earthwork engineering blasting hole plugging device. BACKGROUND
[0002] In civil engineering, common earthwork engineering includes: site leveling, foundation pit and trench excavation, roadbed excavation, civil air defense engineering excavation, floor filling, roadbed filling and foundation pit backfilling. To reasonably arrange construction plan and minimize arrangement in rainy season, the principle of not occupying or less occupying farmland and arable land and being conducive to land reclamation should be followed to make a reasonable allocation plan for earthwork and make overall arrangements. A blasting hole is drilled in rock or soil layer by drilling machine or rock drill and placed with explosive for blasting, or used as artificial seismic source. The blasting hole is mainly used for mining, tunneling, civil engineering construction, old building demolition and underwater reef removal. The diameter of the blasting hole is determined according to construction requirements and explosive charge diameter. The blasting hole needs to be plugged during blasting to minimize the scattering of blasting debris. Therefore, a blasting hole plugging device is needed to plug the blasting hole.
[0003] The existing blasting hole plugging device for earthwork engineering has the following defects: Patent document CN218120777U discloses a blasting hole plugging device for earthwork engineering, which belongs to the field of blasting construction equipment. It includes a cover plate, a threaded rod, a pipe body fixedly connected to the surface of the cover plate, a moving block rotationally connected to the end of the threaded rod, an installation rod fixedly connected to the bottom of the moving block, an installation head fixedly connected to the end of the installation rod, a rotating wheel provided on the surface of the threaded rod, and a clamping component provided on the collar for rotating the threaded rod. An extrusion component is provided on the pipe body to improve the stability of the device. The extrusion component includes a moving part connected to the moving block. When the moving block moves downward, it drives the moving part to move and abuts against the inner wall of the hole. This solves the problem of unstable connection between the plugging device and the hole interior, easy shaking during use and poor plugging effect caused by different diameters of blasting holes.
[0004] However, although the above-mentioned device can plug the blasting hole, its stretching limit is limited, so it cannot plug the hole when the hole diameter exceeds the stretching range, reducing the application range of the device. Meanwhile, the palm is tired and injured when twisting the device, so the device still has some deficiencies and needs further improvement. UTILITY MODEL CONTENTS
[0005] The utility model discloses a kind of blasting hole plugging devices for earthwork engineering blasting, to solve the problem that the extension range is more limited in the above background art, and when rotating, it can cause greater burden to palm.
[0006] To achieve the above object, the utility model provides the following technical scheme, including rotating plate, the bottom fixedly connected with connecting block of rotating plate, the bottom fixedly connected with bottom plate of connecting block, the bottom fixedly connected with threaded rod of bottom plate;
[0007] Cross plate, the top of the cross plate is fixedly connected with four fixed sleeves, the inside of the fixed sleeve is fixedly connected with handle bar.
[0008] As an optional technical scheme, the lower portion of the rotating plate is provided with a circular platform plugging block, and the circular platform plugging block is arranged in a style with a large circle facing upward and a small circle facing downward.
[0009] As an optional technical scheme, a threaded groove is formed in the top of the circular platform plugging block, and the threaded rod is threadedly connected to the inside of the threaded groove.
[0010] As an optional technical scheme, a rubber layer is fixedly connected to the surface of the circular platform plugging block, and a plurality of rubber protrusions are fixedly connected to the surface of the rubber layer.
[0011] As an optional technical scheme, a cone is fixedly connected to the bottom of the circular platform plugging block, and a protective layer is fixedly connected to the surface of the cone.
[0012] As an optional technical scheme, a cross plate is fixedly connected to the surface of the rotating plate, and a rotating label is fixedly connected to the top of the rotating plate.
[0013] As an optional technical scheme, a sponge sleeve is fixedly connected to the surface of the handle bar, and the sponge sleeve is a protective type sponge with fine internal gaps.
[0014] As an optional technical scheme, a handle groove is formed in the surface of the sponge sleeve, and the handle groove is formed in combination with ergonomics.
[0015] Compared with the prior art, the utility model has the following beneficial effects:
[0016] The collocation of the rotating plate, the threaded rod, the circular table plugging block, the threaded groove, the cross plate, the rotating mark, the handle rod and the sponge cover makes the device capable of selecting and assembling suitable plugging blocks according to different sizes of blasting holes, and since the plugging blocks are relatively more, the device can meet the needs of more blasting holes of different sizes, thereby improving the flexible usability of the device.
[0017] The collocation of the rotating plate, the connecting block, the bottom plate, the threaded rod, the circular table plugging block, the threaded groove, the rubber layer, the rubber convex block and the circular cone makes the device capable of taking the form of the circular table, facilitating plugging of the bottom of the blasting hole, prolonging the plugging length, increasing the plugging tightness, improving the plugging effect and increasing the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a whole structure schematic view of the utility model;
[0019] Figure 2 It is a sectional structure schematic view of the utility model;
[0020] Figure 3 It is a threaded rod structure schematic view of the utility model;
[0021] Figure 4 It is a threaded groove structure schematic view of the utility model;
[0022] Figure 5 It is a handle rod structure schematic view of the utility model.
[0023] In the drawing: 1, rotating plate; 2, connecting block; 3, bottom plate; 4, threaded rod; 5, circular table plugging block; 6, threaded groove; 7, rubber layer; 8, rubber convex block; 9, circular cone; 10, protective layer; 11, cross plate; 12, rotating mark; 13, fixed sleeve; 14, handle rod; 15, sponge cover; 16, handle recess. DETAILED DESCRIPTION EMBODIMENT
[0024] Please refer to Figure 1 , Figure 3 and Figure 4The utility model provides a kind of earthwork and masonry engineering blasting hole plugging device, including rotating plate 1, rotating plate 1 is conveniently installed in cross plate 11, the bottom of rotating plate 1 is fixedly connected with connecting block 2, connecting block 2 is conveniently connected with screw rod 4 for auxiliary cross plate 11, the bottom of connecting block 2 is fixedly connected with bottom plate 3, bottom plate 3 is conveniently installed on screw rod 4, while bottom plate 3 can be contacted with the surface of blasting hole, to assist in plugging work, the bottom of bottom plate 3 is fixedly connected with screw rod 4, screw rod 4 can be connected with screw groove 6, so that the device can be disassembled;
[0025] Cross plate 11 is located on the surface of rotating plate 1, four fixed sleeves 13 are fixedly connected to the top of rotating plate 1, the fixed sleeves 13 are used to fix and assist the installation of handle bar 14 inside, the handle bar 14 is fixedly connected inside the fixed sleeve 13, and the handle bar 14 is convenient for the rotation of the staff.
[0026] As an optional technical solution, a circular table plugging block 5 is arranged below the rotating plate 1, the circular table plugging block 5 can be replaced, and the circular table plugging block 5 is suitable for different sizes, so that it can be convenient for the blasting holes of different sizes.
[0027] As an optional technical solution, screw grooves 6 are formed in the top of the circular table plugging block 5, the screw grooves 6 are uniform in size and can be threadedly connected with the screw rod 4, and the screw rod 4 is threadedly connected with the screw grooves 6 in a direction opposite to the direction in which the cross plate 11 rotates to plug the blasting hole, so that the circular table plugging block 5 will not fall off during the plugging process.
[0028] As an optional technical solution, a sponge sleeve 15 is fixedly connected to the surface of the handle bar 14, and the sponge sleeve 15 is a protective sponge with fine internal gaps, the sponge sleeve 15 can increase the comfort of people's grip,
[0029] As an optional technical solution, handle grooves 16 are formed in the surface of the sponge sleeve 15, and the handle grooves 16 are formed in combination with ergonomics, so that people can easily grip the handle grooves 16. Embodiment
[0030] Please refer to Figure 1 、 Figure 2 And Figure 5 A rubber layer 7 is fixedly connected to the surface of the circular table plugging block 5, the rubber layer 7 has a large number of deformation functions, so that the blasting hole can be better plugged, and a plurality of rubber protrusions 8 are fixedly connected to the surface of the rubber layer 7, so that the rubber protrusions 8 can increase the sealing property of the plugging.
[0031] As an optional technical scheme, the bottom of the circular truncated cone plugging block 5 is fixedly connected with a cone 9, the cone 9 can be stuck into the soil, thereby increasing the stability again, the surface of the cone 9 is fixedly connected with a protective layer 10, the protective layer 10 is made of aluminum alloy material, thereby prolonging the service life, and meanwhile, the protective layer 10 is convenient for cleaning in the later period.
[0032] As an optional technical scheme, the surface of the rotating plate 1 is fixedly connected with a cross plate 11, the cross plate 11 is convenient for installing the handle rod 14, the top of the rotating plate 1 is fixedly connected with a rotating mark 12, the rotating mark 12 can remind the staff of the rotating direction.
[0033] Working principle, when the device is used for the blasting hole plugging work of earthwork engineering blasting, firstly, the staff selects the suitable circular truncated cone plugging block 5 according to the size of the blasting hole, then the threaded rod 4 is threadedly connected and fixed with the threaded groove 6, then the device is inserted into the blasting hole, the cone 9 can be stuck into the inside of the blasting hole, then the staff holds the handle rod 14, and then according to the rotating mark 12, the handle rod 14 is rotated inwardly, thereby the circular truncated cone plugging block 5 can plug the blasting hole, and at the same time, the rubber layer 7 and the rubber convex block 8 can be deformed under pressure, thereby plugging the blasting hole.
[0034] It is apparent for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments but can be implemented in other embodiments without departing from the spirit or essential characteristics of the application. Thus, the embodiments should be considered in all respects as illustrative and not restrictive, the scope of the application to be indicated by the appended claims rather than the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application should be deemed critical unless it is explicitly stated in the claims.
Claims
1. A device for sealing blasting holes in earthwork engineering, comprising a rotating plate (1), characterized in that: The bottom of the rotating plate (1) is fixedly connected to a connecting block (2), the bottom of the connecting block (2) is fixedly connected to a base plate (3), and the bottom of the base plate (3) is fixedly connected to a threaded rod (4). A cross plate (11) is located on the surface of a rotating plate (1). Four fixed sleeves (13) are fixedly connected to the top of the cross plate (11), and a handle (14) is fixedly connected inside the fixed sleeves (13).
2. The blasting hole sealing device for earthmoving engineering blasting according to claim 1, characterized in that: A frustum sealing block (5) is provided below the rotating plate (1), and the frustum sealing block (5) is arranged in a style with the large circle facing up and the small circle facing down.
3. The blasting hole sealing device for earthmoving engineering blasting according to claim 2, characterized in that: The top of the frustum sealing block (5) is provided with a threaded groove (6), and the threaded rod (4) is threadedly connected to the inside of the threaded groove (6).
4. The blasting hole sealing device for earthmoving engineering blasting according to claim 2, characterized in that: A rubber layer (7) is fixedly connected to the surface of the frustum sealing block (5), and a number of rubber protrusions (8) are fixedly connected to the surface of the rubber layer (7).
5. A blasting hole sealing device for earthmoving engineering blasting according to claim 2, characterized in that: The bottom of the frustum sealing block (5) is fixedly connected to a cone (9), and the surface of the cone (9) is fixedly connected to a protective layer (10).
6. A blasting hole sealing device for earthmoving engineering blasting according to claim 1, characterized in that: A cross plate (11) is fixedly connected to the surface of the rotating plate (1), and a rotation mark (12) is fixedly connected to the top of the rotating plate (1).
7. A blasting hole sealing device for earthmoving engineering blasting according to claim 1, characterized in that: A sponge sleeve (15) is fixedly connected to the surface of the handle (14).
8. A blasting hole sealing device for earthmoving engineering blasting according to claim 7, characterized in that: The surface of the sponge sleeve (15) is provided with a handle groove (16), and the handle groove (16) is designed in accordance with ergonomic principles.
Citation Information
Patent Citations
Blast hole plugging device for earth-rock engineering blasting
CN218120777U