Special blasting plug
By designing a frustum-shaped plug made of rubber, the problem of low efficiency in blasting loess mud blockage was solved, enabling convenient storage, transportation, and efficient blasting. This reduced labor and explosive consumption and improved the safety and efficiency of blasting operations.
Patent Information
- Application Number
- CN202520026411.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Traditional methods of plugging blast holes with loess mud are inefficient, labor-intensive, and resource-uneven, limiting the safety and efficiency of blasting operations.
A plug body was designed, made of rubber material, with a frustum-shaped structure, small at the top and large at the bottom, with the cavity facing into the blast hole, for insertion into the blast hole and to withstand the explosive impact force. The detonator lead extends through the groove, simplifying operation and increasing friction.
It enables convenient storage and transportation, reduces worker workload, saves explosives, improves blasting efficiency, reduces costs, and enhances safety and ease of operation.
Smart Images

Figure CN223564865U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of blasting plug, specifically relates to special plug for blasting. BACKGROUND
[0002] Blasting engineering has been widely applied in the fields of mine exploitation, road construction and the like, and how to safely and efficiently carry out blasting operation is concerned, in the blasting operation, using loess mud to block the blasting hole is a kind of measure for controlling blasting damage.
[0003] The traditional special plug for blasting mainly uses loess mud to block, but this method has many disadvantages, first, the use efficiency of loess mud is low, and a large amount of manual labor and time are needed for filling and shaping, second, the distribution of loess mud is not uniform in the global range, and some areas lack loess resources, which restricts its wide application.
[0004] Therefore, the special plug for blasting is provided. CONTENT OF UTILITY MODEL
[0005] The utility model discloses the purpose at: for solving the problem in the background art, the utility model provides special plug for blasting.
[0006] The utility model discloses the purpose in order to realize the above-mentioned purpose specifically adopts the following technical scheme:
[0007] Special plug for blasting, including plug body, the top of plug body is equipped with cavity, the surface of plug body is equipped with recess, plug body and recess are all set up conical frustum structure, and the diameter of the top of plug body is less than the diameter of the bottom of plug body, and the diameter of the bottom of cavity is less than the diameter of the top of cavity.
[0008] Further, the plug body is inserted and installed in the blasting hole opened in the surface of the blasting object when in use, the inside of the blasting hole is filled with the explosive body, the detonator body is arranged in the explosive body, and the detonator lead is connected to the detonator body.
[0009] Further, the detonator lead is inserted into the recess on the surface of the plug body and extends out of the hole of the blasting hole.
[0010] Further, when the plug body is inserted into the inside of the blasting hole, the cavity of the end of the plug body faces the inside of the blasting hole.
[0011] Further, the plug body is made of rubber material.
[0012] Further,
[0013] The utility model has the advantages of the following:
[0014] The volume of the plug body is small, facilitating storage and transportation, reducing dust, saving explosive amount, and the volume of the plug body is small, facilitating carrying, reducing labor amount, being stable in performance, solving hole blocking during blasting, increasing blasting efficiency, and saving energy and reducing consumption.
[0015] The end of the plug body faces the inside of the blasting hole, so that the impact force of the explosion can be borne by the cavity of the end of the plug body during the explosion, and the plug body is made of rubber material, so that the weight is small, facilitating operation and carrying. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a schematic diagram of the plug body of the utility model;
[0017] Figure 2 is a top view of the plug body of the utility model;
[0018] Figure 3 is a sectional view of the plug body of the utility model;
[0019] Figure 4 is a schematic diagram of the plug body of the utility model in use;
[0020] Figure 5 is a schematic diagram of the plug body of the utility model in use when bearing the blasting impact
[0021] Reference signs: 1, plug body; 2, cavity; 3, groove; 4, blasting object; 5, blasting hole; 6, explosive body; 7, detonator body; 8, detonator lead wire. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.
[0023] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the utility model.
[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0025] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] like Figures 1 to 4 As shown, the blasting plug includes a plug body 1, a cavity 2 at the top of the plug body 1, and a groove 3 on the surface of the plug body 1. Both the plug body 1 and the groove 3 are frustoconical in shape. The diameter of the top of the plug body 1 is smaller than the diameter of its bottom, and the diameter of the bottom of the cavity 2 is smaller than the diameter of its top. More specifically, the plug body 1 is small in size, making it easy to store and transport, significantly reducing smoke and dust, and saving explosives. Its small size also makes it easy to carry, reduces worker workload, provides stable performance, solves the problem of blasting hole blockage, increases blasting efficiency, and saves energy and reduces consumption.
[0027] When in use, the plug 1 is inserted into a blast hole 5 opened on the surface of the explosive 4. The blast hole 5 is filled with an explosive body 6, and a detonator body 7 is installed inside the explosive body 6. The detonator body 7 is connected to a detonator lead wire 8. More specifically, after the explosive body 6 and the detonator body 7 are filled into the blast hole 5, the plug 1 is inserted into the interior of the blast hole 5 to seal it.
[0028] The detonator lead 8 passes through the groove 3 on the surface of the plug body 1 and extends out of the hole of the blasting hole 5. More specifically, the groove 3 on the surface of the plug body 1 allows the detonator lead 8 to pass through the groove 3 on the surface of the plug body 1 and extend from inside the blasting hole 5 to the outside of the hole.
[0029] When the plug 1 is inserted into the blast hole 5, the cavity 2 at the end of the plug 1 faces the interior of the blast hole 5. More specifically, by having the end of the plug 1 facing the interior of the blast hole 5, the cavity 2 at the end of the plug 1 can withstand the impact force of the explosion during an explosion.
[0030] The stopper 1 is made of rubber. More specifically, by making the stopper 1 of rubber, its weight is reduced, making it easy to operate and carry.
[0031] As Figure 5 , according to the gas pressure principle, Figure 5 P1 and P2 of the cavity 2 opened at the end of the plug body 1, P1=P2 when the plug body 1 is inserted into the blasting hole 5, and during the explosion, because S1 at P1>S2 at P2, so F1 at P1>F2 at P2, the friction force F1 of the outer wall of the plug body 1 to the inner wall of the blasting hole 5 is greater than the outward pressure F2, so the friction force between the outer wall of the plug body 1 and the inner wall of the blasting hole 5 is increased due to the positive pressure of F1, and the plug body 1 will not be pressed out.
[0032] In summary: through the plug body 1, the volume is small, convenient to store, convenient to transport, reduce dust, save explosive amount, the effect is remarkable, the volume of the plug body 1 is small, convenient to carry, reduce the labor amount of workers, stable performance, solve the blasting hole, increase the blasting efficiency, energy saving and consumption reduction.
[0033] The above shows and describes the basic principle, main features and advantages of the present application. The skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. A blasting plug, characterized in that The application relates to a plug body (1) with a cavity (2) in the top end and a groove (3) on the surface, wherein the plug body (1) and the groove (3) are both in a frustoconical structure, the top end diameter of the plug body (1) is smaller than the bottom end diameter of the plug body (1), and the bottom end diameter of the cavity (2) is smaller than the top end diameter of the cavity (2).
2. The blasting plug of claim 1, wherein The plug body (1) is inserted into the blasting hole (5) on the surface of an explosive (4) during use, the blasting hole (5) is filled with an explosive body (6), the explosive body (6) is provided with a detonator body (7), and the detonator body (7) is connected with a detonator lead wire (8).
3. A blasting plug according to claim 2, characterised in that The detonator lead wire (8) passes through the groove (3) on the surface of the plug body (1) and extends out of the hole of the blasting hole (5).
4. The blasting plug of claim 2, wherein, When the plug body (1) is inserted into the blasting hole (5), the cavity (2) in the end of the plug body (1) faces the inside of the blasting hole (5).
5. The blasting plug of claim 1, wherein, The plug body (1) is made of rubber.