CN218895710U - Simple hole plugging device - Google Patents
Simple hole plugging device Download PDFInfo
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- CN218895710U CN218895710U CN202222757994.4U CN202222757994U CN218895710U CN 218895710 U CN218895710 U CN 218895710U CN 202222757994 U CN202222757994 U CN 202222757994U CN 218895710 U CN218895710 U CN 218895710U
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- plug
- bracket
- hole
- blast hole
- plugging device
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Abstract
The utility model discloses a simple hole plugging device, which comprises a plug, a bracket, a screw rod, a gasket, a plug and a blast hole, wherein the plug is arranged on the bracket; one end of the plug is a pointed end and faces the plug, so that friction force between the plug and the hole wall is increased, and the plug is prevented from punching a blast hole; the bracket is of a diamond structure and is used for being clamped in the blast hole; the screw rod is used for adjusting the width of the bracket; the gasket is positioned at the contact position of the bracket and the blast hole and is used for increasing the friction force between the bracket and the blast hole. The simple hole plugging device disclosed by the utility model can effectively improve the hole plugging effect of the blast hole, thereby improving the blasting effect, and is suitable for various underground blasting projects. In addition, the hole plugging device is simple and convenient to operate in practical application, low in cost and remarkable in economic benefit.
Description
Technical Field
The utility model relates to the technical field of blasting engineering, in particular to a simple hole plugging device.
Background
The drilling and blasting method has strong adaptability to geological conditions and low excavation cost, so that the current tunnel is mainly tunneled by the drilling and blasting method. The blasting process often uses stemming and other materials to block holes, and the blocking holes can enhance the blasting effect, so that the effect is very important. However, tunnel blasting and tunneling generally adopts small-diameter blastholes, the number of blastholes of a face surface of the small-diameter blastholes is up to hundreds, and the blocking of the blastholes is a troublesome problem. The current blasthole blockage still passes through manual operation, namely the time-consuming blockage quality is very poor, the punching problem is serious, the explosive gas escapes prematurely, the rock breaking effect of the explosive cannot be fully exerted, the expected effect of tunnel blasting cannot be achieved, the utilization rate of the explosive is greatly reduced, and even a large amount of overexcavation, undermining, blasting flyrock and the like are caused. In addition, in order to save hole blocking time, the partial tunnel blasting is direct without blocking, and 1-2 volumes of explosive are put in each blast hole, so that the noise is larger, the effective energy utilization rate of the explosive is lower, and the specific explosive consumption is higher.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a simple hole plugging device which can improve the hole plugging quality, prolong the acting time of an expansion substance, improve the breaking degree of rock and the effective energy utilization rate of the expansion substance, and ensure the tunnel blasting effect, thereby improving the tunnel blasting tunneling progress.
The technical scheme for solving the technical problems is as follows: the simple hole plugging device is characterized by comprising a plug, a bracket, a screw rod, a gasket, a plug and a blast hole; one end of the plug is a pointed end and faces the plug, so that friction force between the plug and the hole wall is increased, and the plug is prevented from punching a blast hole; the bracket is of a diamond structure and is used for being clamped in the blast hole; the screw rod is used for adjusting the width of the bracket; the gasket is positioned at the contact position of the bracket and the blast hole and is used for increasing the friction force between the bracket and the blast hole.
According to a preferred scheme of the utility model, the plug is made of wood, plastic, metal and the like, the tip end of the plug can be of a wedge-shaped or conical structure, the diameter of the plug is slightly smaller than that of the blast hole, and a round hole is formed in the center of the bottom of the plug and used for accommodating the tail of the screw rod.
According to a preferred scheme of the utility model, the bracket is made of metal materials, such as steel, aluminum alloy and the like, the minimum width of the bracket after contraction is required to be smaller than the diameter of the blast hole, and the maximum width of the bracket after expansion is required to be larger than the diameter of the blast hole, so that the bracket can provide a supporting effect for the plug.
According to a preferred scheme of the utility model, two ends of the support are provided with small holes, wherein the small holes at one end are provided with threads matched with the screw rod, and the inner diameter of the small holes at the other end is required to be larger than the outer diameter of the screw rod.
According to one preferable scheme of the utility model, the screw rod is made of metal, the length of the screw rod is longer than the diagonal line of the bracket, and the rest part of the screw rod can extend into the round hole at the bottom of the plug.
In a preferred embodiment of the present utility model, the pad may be made of rubber, polyurethane, or the like, and needs to be fixed on the bracket.
In a preferred embodiment of the utility model, the plug is made of stemming machine, the diameter of the plug is slightly smaller than that of the blast hole, and the plug can be scattered after being impacted.
In a preferred scheme of the utility model, the expansion materials are emulsion explosives, ammonium nitrate fuel oil explosives, static breaking agents and the like.
The simple hole plugging device has the working principle that the whole device is clamped in the blast hole by expanding the width of the bracket through the screw rod in the device, so that the friction force between the hole plugging device and the blast hole is increased; in addition, if the plug outwards slides along the blast hole under the action of the expansion substance, the tip of the plug can be inserted into the plug, so that the diameter of the plug is increased, the friction between the plug and the blast hole is increased, and the plug is prevented from being punched out of the blast hole.
Compared with the prior art, the utility model has the following beneficial effects: the simple hole plugging device provided by the utility model can effectively prevent plugs from being punched out of blast holes, prolong the action time of expansion substances, improve the breaking degree of rock and the effective energy utilization rate of the expansion substances, and ensure the tunnel blasting effect, thereby improving the tunnel blasting tunneling progress.
The simple hole plugging device provided by the utility model is time-saving and labor-saving in practical application, is simple and convenient to operate, is favorable for on-site construction management, and has obvious economic and social benefits.
Drawings
FIG. 1 is a schematic diagram of a simple hole plugging device provided by the utility model.
Fig. 2 is a schematic diagram of a bracket part in detail in the simple hole plugging device provided by the utility model.
FIG. 3 is a schematic diagram of the use process of the simple hole plugging device provided by the utility model.
Wherein, 1-end cap, 2-support, 3-screw pole, 4-gasket, 5-plug, 6-big gun hole, 7-inflation material.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.
Example 1
Referring to fig. 1 and 2, the simple hole plugging device is characterized by comprising a plug 1, a bracket 2, a screw rod 3, a gasket 4, a plug 5 and a blast hole 6; one end of the plug 1 is a pointed end and faces the plug 5, so as to increase friction between the plug 5 and the blast hole 6, thereby effectively preventing the plug 5 from punching the blast hole 6; the bracket 2 is of a diamond structure and is used for being clamped in the blast hole 6; the screw rod 3 is used for adjusting the width of the bracket 2; the gasket 4 is located at a position where the bracket 2 contacts with the blast hole 6, and is used for increasing friction between the bracket 2 and the blast hole 6.
Referring to fig. 1 and 2, the blast hole 6 is a horizontal hole in tunnel blasting, the diameter of the horizontal hole is 50mm, and the hole depth is 4m.
Referring to fig. 1 and 2, the plug 1 is made of wood, the tip end of the plug is of a wedge-shaped structure, the diameter of the plug is 47mm and is slightly smaller than the diameter (50 mm) of the blast hole 6, a round hole is formed in the center of the bottom of the plug 1, and the diameter of the round hole is 5mm and is used for accommodating the tail of the screw rod 3.
Referring to fig. 1 and 2, the support 2 is a stainless steel support, has a certain mechanical strength, can bear the pressure of more than 10kN, has a minimum width of 30mm after shrinkage, is smaller than the diameter (50 mm) of the blast hole 6, has a maximum width of 80mm after expansion, is larger than the diameter (50 mm) of the blast hole 6, and is used for providing a supporting function for the plug 1.
Referring to fig. 1 and 2, the two ends of the bracket 2 are provided with small holes, wherein the small holes at one end are provided with threads matched with the screw rod 3, and the inner diameter of the small holes at the other end is 5mm and is larger than the outer diameter (4 mm) of the screw rod 3.
Referring to fig. 1 and 2, the included angle of the end with the hole of the bracket 2 is 120 degrees, and the included angle of the end with the gasket 4 is 60 degrees.
Referring to fig. 1 and 2, the screw rod 3 is made of stainless steel, the length of the screw rod is longer than the diagonal line of the bracket 2, and the rest part of the screw rod can extend into the round hole at the bottom of the plug 1.
Referring to fig. 1 and 2, the spacer 4 may be made of rubber, and needs to be fixed on the bracket 2.
Referring to fig. 1 and 2, the plug 5 is made of stemming machine, and the ratio is: soil, sand and water=5:1:1, the diameter of the molded sand is 45mm and slightly smaller than the diameter (50 mm) of a blast hole, the length of the molded sand is 0.8m, and the molded sand can be dispersed after impacting the plug 1.
Referring to fig. 3, the expansion material may be an emulsion explosive, an ammonium nitrate fuel oil explosive, a static breaker, or the like.
Referring to fig. 1, 2 and 3, the working principle of the simple hole plugging device of the utility model is further described below with reference to the accompanying drawings: the working principle of the utility model is that the width of the bracket 2 is expanded through the screw rod 3 in the device, so that the whole device is clamped in the blast hole 6, thereby increasing the friction force between the hole blocking device and the blast hole 6; in addition, if the plug 5 slides along the blast hole 6 toward the orifice by the expansion material 7, the tip of the plug 1 is inserted into the plug 5, and the diameter of the plug 5 is increased, thereby increasing the friction between the plug 5 and the blast hole 6 and preventing the plug 5 from being punched out of the blast hole 6.
The foregoing is illustrative of the present utility model and is not to be construed as limiting thereof, but rather as various changes, modifications, substitutions, combinations, and simplifications which may be made therein without departing from the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (6)
1. The simple hole plugging device is characterized by comprising a plug, a bracket, a screw rod, a gasket, a plug and a blast hole; one end of the plug is a pointed end and faces the plug, so that friction force between the plug and the hole wall is increased, and the plug is prevented from punching a blast hole; the bracket is of a diamond structure and is used for being clamped in the blast hole; the screw rod is used for adjusting the width of the bracket; the gasket is positioned at the contact position of the bracket and the blast hole and is used for increasing the friction force between the bracket and the blast hole.
2. The simple hole plugging device according to claim 1, wherein the plug is of a wedge-shaped structure with a diameter slightly smaller than the blast hole, and a round hole is formed in the center of the bottom of the plug for accommodating the tail of the lead screw.
3. The device of claim 1, wherein the bracket is made of metal, and the minimum width of the bracket after contraction is smaller than the diameter of the blast hole, and the maximum width of the bracket after expansion is larger than the diameter of the blast hole, so that the bracket can provide a supporting function for the plug.
4. The device of claim 1, wherein the two ends of the bracket are provided with small holes, wherein the small holes at one end are provided with threads matched with the screw rod, and the inner diameter of the small holes at the other end is required to be larger than the outer diameter of the screw rod.
5. The easy hole plugging device according to claim 1, wherein the lead screw is longer than the diagonal of the bracket, and the remaining part thereof is allowed to extend into the round hole at the bottom of the plug.
6. The simple and convenient hole plugging device according to claim 1, wherein the gasket is made of rubber material and needs to be fixed on the bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222757994.4U CN218895710U (en) | 2022-10-20 | 2022-10-20 | Simple hole plugging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222757994.4U CN218895710U (en) | 2022-10-20 | 2022-10-20 | Simple hole plugging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218895710U true CN218895710U (en) | 2023-04-21 |
Family
ID=86003324
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222757994.4U Active CN218895710U (en) | 2022-10-20 | 2022-10-20 | Simple hole plugging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218895710U (en) |
-
2022
- 2022-10-20 CN CN202222757994.4U patent/CN218895710U/en active Active
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