Mine forcible entry device

Abstract

The utility model provides a mine forcible entry device which comprises a crowbar and a baffle, the front end and the rear end of the crowbar are respectively provided with a prying head, the baffle is fixedly connected with the crowbar, and the axial direction of the crowbar is perpendicular to the surface of the baffle. By the adoption of the technical scheme, when an operator uses a crowbar to lift a heavy object in a mine, due to the fact that the crowbar is fixedly connected with the baffle, when the heavy object is lifted into the air, even if some matter components fall off, the baffle blocks the falling matter components, the situation that the falling matter components injure the body of the operator can be avoided, and the safety of the operator is guaranteed. And in addition, after one end of the crowbar is inserted into the ground, the baffle can also serve as a stable lever fulcrum, so that a heavy object is convenient to lift, and the labor intensity of an operator is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of crowbar technology, and in particular to a mine demolition device. Background Technology

[0002] In mining operations, crowbars are a common ore dismantling device. Crowbars are generally made of long metal rods. When using a crowbar to break ore, the operator needs to insert one end of the crowbar into the ore body and then apply force to the other end of the crowbar. According to the lever principle, the intersection of the crowbar and the ground is the fulcrum. The operator can use the lever principle to lift up some of the heavy objects buried underground.

[0003] In the prior art, patent document with publication number "CN217518193U" discloses a telescopic crowbar for dismantling concrete formwork, including a crowbar body, a crowbar retraction rod inserted inside the crowbar body, a first pressing block mounted on the surface of the crowbar body, a second insertion groove formed on the surface of the crowbar body, a second sliding groove formed inside the crowbar retraction rod, and a moving plate installed inside the second sliding groove. Using this patented technical solution, the first pressing block moves the first insertion block downwards, pressing the third insertion block to disengage from the second insertion groove, thus facilitating the extraction of the crowbar retraction rod from the crowbar body. A second spring presses the moving plate, moving the third insertion block upwards. The third insertion block inserts into the first insertion groove, facilitating the fixation of the crowbar retraction rod, thereby making it easy to extract and fix the crowbar retraction rod from the crowbar body, thus facilitating retraction and making it easier to carry and store.

[0004] However, when operators use crowbars to lift heavy objects in the mine, the objects often contain a variety of materials such as minerals, rocks, and soil. Due to the low bonding force between different material components, some material components will detach when the object is lifted into the air and slide down the length of the crowbar to the position where the operator holds the crowbar. Because these materials have a high density, they generate a huge impact as the falling speed increases, which can cause great physical injury to the operator. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a mine demolition device.

[0006] This utility model is achieved through the following technical solution.

[0007] This utility model provides a mine demolition device, including a crowbar and a baffle. The crowbar is provided with pry heads at its front and rear ends, the baffle is fixedly connected to the crowbar, and the axis of the crowbar is perpendicular to the surface of the baffle.

[0008] The crowbar is welded to the baffle as a single unit.

[0009] The working section is between one end of the crowbar and the baffle, and the handheld section is between the other end of the crowbar and the baffle. The length ratio of the working section to the handheld section is 1:4.

[0010] The baffle is a circular thin-walled steel plate with an outer diameter of not less than 300 mm and a thickness of not less than 2-5 mm.

[0011] The surface of the baffle is also provided with several ventilation holes, the diameter of which does not exceed 10mm.

[0012] The crowbar and the crowhead are connected by a threaded pair.

[0013] The cross-sectional profile of the crowbar is a regular octagon with a distance of 25-35mm between opposite sides.

[0014] The length of the crowbar is 2000mm to 3000mm.

[0015] The pry bar is in the shape of a regular octagonal pyramid or an isosceles triangular thin plate.

[0016] The length of the pry bar shall not be less than 100mm.

[0017] The beneficial effects of this utility model are as follows: When an operator uses a crowbar to lift a heavy object in a mine, the crowbar is fixedly connected to the baffle. When the heavy object is lifted into the air, even if some of its components fall off, the baffle will block the falling components, thus preventing them from causing injury to the operator and improving safety. In addition, when one end of the crowbar is inserted into the ground, the baffle can also serve as a stable lever fulcrum, making it easier to lift the heavy object and reducing the operator's labor intensity. Attached Figure Description

[0018] Figure 1 This is the front view of this utility model;

[0019] Figure 2 This is the front view of the baffle of this utility model.

[0020] In the picture: 1-crowbar, 2-baffle, 3-pry head, 4-ventilation hole. Detailed Implementation

[0021] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0022] like Figures 1 to 2As shown, this utility model provides a mine demolition device, including a crowbar 1 and a baffle 2. The front and rear ends of the crowbar 1 are respectively provided with pry heads 3. The baffle 2 is fixedly connected to the crowbar 1, and the axis of the crowbar 1 is perpendicular to the surface of the baffle 2.

[0023] By adopting the technical solution of this utility model, when an operator uses a crowbar to lift a heavy object in a mine, since the crowbar is fixedly connected to the baffle, even if some of the material components fall off when the heavy object is lifted into the air, the baffle will block the falling material components, thus preventing the falling material components from causing injury to the operator's body and improving safety. In addition, when one end of the crowbar is inserted into the ground, the baffle can also serve as a stable lever fulcrum, making it easier to lift the heavy object and reducing the operator's labor intensity.

[0024] Specifically, the crowbar 1 and the baffle 2 are welded together as one piece. One end of the crowbar 1 and the baffle 2 form the working section, and the other end of the crowbar 1 and the baffle 2 form the handheld end. The length ratio of the working section to the handheld section is 1:4. The baffle 2 is a circular thin-walled steel plate with an outer diameter of not less than 300mm and a thickness of not less than 2-5mm.

[0025] In addition, the surface of the baffle 2 is provided with several ventilation holes 4, the diameter of which does not exceed 10mm. Using the technical solution of this utility model, because the surface of the baffle is provided with ventilation holes, the material components that fall off from the heavy object accumulate on the surface of the baffle, and the internal airflow is discharged through the ventilation holes, preventing the formation of internal cavities and avoiding secondary collapse of the material components piled on the surface of the baffle.

[0026] Furthermore, the crowbar 1 and the pry head 3 are connected by a threaded pair. The cross-sectional profile of the crowbar 1 is a regular octagon with a side-to-side distance of 25-35 mm. The length of the crowbar 1 is 2000 mm to 3000 mm. The pry head 3 is in the shape of a regular octagonal pyramid or an isosceles triangular plate. The length of the pry head 3 is not less than 100 mm.

Claims

1. A mine breaking device, characterized by: Includes a crowbar (1) and a baffle (2). The crowbar (1) has pry heads (3) at its front and rear ends respectively. The baffle (2) is fixedly connected to the crowbar (1), and the axis of the crowbar (1) is perpendicular to the surface of the baffle (2). The crowbar (1) and the baffle (2) are welded together. One end of the crowbar (1) and the baffle (2) serve as the working section, and the other end of the crowbar (1) and the baffle (2) serve as the handheld end. The length ratio of the working section to the handheld section is 1:

4. The surface of the baffle (2) is also provided with several ventilation holes (4), and the diameter of the ventilation holes (4) does not exceed 10mm.

2. A mine breaking device as claimed in claim 1, characterised in that: The baffle (2) is a circular thin-walled steel plate with an outer diameter of not less than 300 mm and a thickness of not less than 2-5 mm.

3. The mine demolition device as described in claim 1, characterized in that: The crowbar (1) and the crowhead (3) are connected by a threaded pair.

4. A mine breaking device as claimed in claim 1 or claim 3 wherein: The cross-sectional profile of the crowbar (1) is a regular octagon with a distance of 25-35 mm between opposite sides.

5. A mine breaking device as claimed in claim 4, characterised in that: The length of the crowbar (1) is 2000mm to 3000mm.

6. A mine demolition device as described in claim 1 or 3, characterized in that: The pry bar (3) is in the shape of a regular octagonal pyramid or an isosceles triangular thin plate.

7. A mine breaking device as claimed in claim 6, characterised in that: The length of the pry bar (3) shall not be less than 100 mm.

Images