Temporary support for coal mine tunneling

Abstract

The utility model discloses a temporary support for coal mine tunneling in the technical field of coal mine tunneling, which comprises a cabin plate, a shielding net body arranged on the left side of the cabin plate, a telescopic mechanism arranged above the shielding net body, a limiting mechanism arranged below the shielding net body, and a telescopic rod arranged at the lower end of a gas rod body. A first limiting chuck and a second limiting chuck are fixedly mounted at the lower end of a telescopic rod, a limiting lantern ring is arranged on the outer side of the second limiting chuck and fixedly mounted at the upper end of a shielding net body, and a rotating seat is mounted at the upper end of a gas rod body. The telescopic mechanism and the limiting mechanism supplement each other, the telescopic mechanism enables the shielding net body to be adjustable, downward moving or upward moving operation can be rapidly conducted, workers can conveniently and rapidly move the shielding net body to the front of the body, then the shielding effect can be achieved, and the limiting mechanism is used in cooperation with the telescopic mechanism, and the position of the shielding net body can be determined.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mine excavation, in particular to a temporary support for coal mine excavation. Background Art

[0002] Coal mine excavation is a key link in coal mining operations. It involves a series of projects such as excavating tunnels and chambers inside the coal mine to facilitate coal collection, transportation and ventilation. Coal mine excavation plays an important role in ensuring coal mine production safety, improving production efficiency and achieving efficient resource utilization. Excavation operations are the primary step in coal mine production, and they complement coal mining. Coal mine roadheaders are professional equipment used to excavate tunnels and chambers in coal mines. They are key tools for achieving efficient and safe coal mine excavation operations. This type of mechanical equipment can automatically complete the excavation, support, transportation and other tasks of coal mine tunnels, significantly improve excavation efficiency, reduce workers' labor intensity, and reduce safety risks.

[0003] The patent document with application number CN202221328633.1 discloses a coal mine excavation support device, which includes two bases, and a plurality of columns are installed on the top of the base. Two adjacent columns are connected by a side baffle, and the tops of the plurality of columns are connected by a connecting plate. The top of the connecting plate is fixedly connected with a support plate a arranged in an L shape. The support plate a includes a vertical plate and a horizontal plate. The connection between the vertical plate and the horizontal plate is arranged in an arc shape. The two horizontal plates are connected by a rectangular connecting sleeve, and the connecting sleeve is slidably sleeved on the outer side walls of the two support plates a. In the utility model, the distance between the two bases of the coal mine excavation support device can not only be adjusted according to the actual use situation, but also the two sides and the top of the coal mine excavation support device are blocked by baffles to prevent the rocks on the newly blasted top plate and side walls from loosening and falling and injuring people during the excavation process. Based on the search of the above patents and combined with the coal mine excavation support device in the prior art, it is found that when the coal mine excavation support device is used, in the excavation operation of the coal mine, the commonly used temporary support structures are often large-scale shielding facilities, which can provide effective protection for the miners. However, these large support structures have certain shortcomings during use, especially in terms of adjustment. Due to their large size and weight, the adjustment operation not only requires more manpower, but also takes a long time, which affects the excavation efficiency of the coal mine to a certain extent. In addition, not all coal mine excavators are equipped with a complete protection structure. In this case, if a large shielding structure is used, it will not only cause inconvenience in operation, but also increase safety risks due to low efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a temporary support for coal mine excavation to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a temporary support for coal mine excavation, including a machine room plate, a shielding mesh is arranged on the left side of the machine room plate, a telescopic mechanism is arranged above the shielding mesh, and a limiting mechanism is arranged below the shielding mesh, the telescopic mechanism includes a gas rod body, a telescopic rod, a first limit chuck, a second limit chuck, a limit collar, a fixed rod, a rotating seat, a mounting rod and a mounting plate body, a telescopic rod is installed at the lower end of the gas rod body, a first limit chuck and a second limit chuck are fixedly installed at the lower end of the telescopic rod, a limiting collar is arranged on the outer side of the second limit chuck, and the limiting collar is fixedly installed on the upper end of the shielding mesh.

[0006] Optionally, a rotating seat is installed at the upper end of the gas rod body, a mounting rod is fixedly installed at the right end of the rotating seat, and a mounting plate is fixedly installed at one end of the mounting rod away from the rotating seat.

[0007] Optionally, the limiting mechanism includes a support rod body, a connecting ball sleeve, a connecting ball, a connecting rod, a connecting hook, a first hanging plate, a first hook, a second hanging plate and a second hook, and the support rod body is fixedly mounted on the lower end of the shielding net body.

[0008] Optionally, a connecting ball sleeve is fixedly mounted on the lower end of the support rod body, and a connecting ball is arranged on the inner side of the connecting ball sleeve.

[0009] Optionally, a connecting rod is fixedly installed on the lower end of the connecting sphere, a connecting hook is fixedly installed on the lower end of the connecting rod, a first hook is arranged on the outer side of the connecting hook, and a first hanging plate is fixedly installed on the right end of the first hook.

[0010] Optionally, a second hanging plate is provided behind the mounting rod, and a second hook is fixedly mounted on the second hanging plate.

[0011] Optionally, the mounting plate body, the first hanging plate and the second hanging plate are all fixedly mounted on the cabin plate.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] In the utility model, a telescopic mechanism and a limiting mechanism are provided. The telescopic mechanism allows the operator to quickly adjust the position of the shielding net, so as to quickly respond to changes in the working environment. Through the rapid extension and retraction of the telescopic rod, the shielding net can flexibly adapt to different working spaces and working conditions. The use of the telescopic mechanism can greatly reduce the physical labor of the operator. The rapid and accurate adjustment of the shielding net helps to improve the safety of the miners and reduce the risk of accidents caused by untimely adjustment. The limiting mechanism ensures that the shielding net can be accurately positioned. The limiting mechanism allows the operator to easily lock and unlock the position of the shielding net, which is very convenient. The limiting mechanism provides a stable fixation for the shielding net and enhances the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model in a three-dimensional front view;

[0015] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model in a planar rear view;

[0017] Figure 4 The structure of the utility model is schematically shown in a three-dimensional cutaway view. Figure 1 ;

[0018] Figure 5 The structure of the utility model is schematically shown in a three-dimensional cutaway view. Figure 2 ;

[0019] Figure 6 For this utility model Figure 4 A schematic diagram of the structure at the center showing a three-dimensional magnification;

[0020] Figure 7 For this utility model Figure 5 Schematic diagram of the three-dimensional enlarged structure at point B in the middle.

[0021] In the figure: 1, cabin plate; 2, shielding net body; 3, telescopic mechanism; 301, gas rod body; 302, telescopic rod; 303, first limit chuck; 304, second limit chuck; 305, limit collar; 306, fixed rod; 307, rotating seat; 308, mounting rod; 309, mounting plate body; 4, limiting mechanism; 401, support rod body; 402, connecting ball sleeve; 403, connecting ball body; 404, connecting rod; 405, connecting hook; 406, first hanging plate; 407, first hook; 408, second hanging plate; 409, second hook. DETAILED DESCRIPTION

[0022] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 7In the embodiment of the utility model, a temporary support for coal mine excavation includes a machine room plate 1, a shielding net body 2 is arranged on the left side of the machine room plate 1, a telescopic mechanism 3 is arranged above the shielding net body 2, and a limiting mechanism 4 is arranged below the shielding net body 2. The telescopic mechanism 3 includes a gas rod body 301, a telescopic rod 302, a first limiting chuck 303, a second limiting chuck 304, a limiting collar 305, a fixed rod 306, a rotating seat 307, a mounting rod 308 and a mounting plate body 309. The lower end of the gas rod body 301 is equipped with a telescopic rod 302, and the lower end of the telescopic rod 302 is fixedly equipped with a first limiting chuck 303 and a second limiting chuck 304. The outer side of the second limiting chuck 304 is provided with a limiting collar 305. The positioning ring 305 is fixedly installed on the upper end of the shielding net body 2, and a rotating seat 307 is installed on the upper end of the gas rod body 301, and a mounting rod 308 is fixedly installed on the right end of the rotating seat 307, and a mounting plate 309 is fixedly installed on the end of the mounting rod 308 away from the rotating seat 307; the gas rod body 301 provides necessary support for the telescopic mechanism 3 to ensure its stability and reliability, and the gas rod body 301 can achieve rapid telescopic and retractable, thereby improving the operating efficiency, and the telescopic rod 302 can achieve rapid adjustment of the shielding net body 2 by quickly pulling, thereby improving the working efficiency; the clamping effect of the first limiting chuck 303, the second limiting chuck 304 and the limiting ring 305 is convenient for the user to rotate the shielding net body 2 to achieve an adjustable effect;

[0026] The limiting mechanism 4 includes a support rod body 401, a connecting ball sleeve 402, a connecting ball 403, a connecting rod 404, a connecting hook 405, a first hanging plate 406, a first hook 407, a second hanging plate 408 and a second hook 409. The lower end of the shielding net body 2 is fixedly installed with the support rod body 401, the lower end of the support rod body 401 is fixedly installed with the connecting ball sleeve 402, the inner side of the connecting ball sleeve 402 is provided with a connecting ball 403, the lower end of the connecting ball 403 is fixedly installed with a connecting rod 404, the lower end of the connecting rod 404 is fixedly installed with a connecting hook 405, and the outer side of the connecting hook 405 is provided with a first hanging Hook 407, a first hanging plate 406 is fixedly installed on the right end of the first hook 407, a second hanging plate 408 is arranged behind the mounting rod 308, a second hook 409 is fixedly installed on the second hanging plate 408, the mounting plate body 309, the first hanging plate 406 and the second hanging plate 408 are all fixedly installed on the cabin plate 1; the support rod body 401 provides a stable support for the limiting mechanism 4 to ensure its normal operation, the connecting ball sleeve 402 realizes a flexible connection between the connecting ball body 403 and the support rod body 401, and the positioning function of the connecting hook 405 enables the shielding net body 2 to be quickly positioned, thereby improving work efficiency.

[0027] The working principle of the utility model is as follows: the temporary support for coal mine excavation is composed of a shielding net body 2, a telescopic mechanism 3 and a limiting mechanism 4. When using the temporary support for coal mine excavation, the temporary support for coal mine excavation can be first fixedly installed on the machine room plate 1 as a whole, and then the temporary support for coal mine excavation can be installed on the coal mine excavation machine body. However, this installation position can be adjusted according to actual conditions. The telescopic mechanism 3 and the limiting mechanism 4 are activated, and the staff pulls down the shielding net body 2 as a whole. The gas rod body 301 and the telescopic rod 302 with a buffering function can be quickly pulled and adjusted, and the shielding net body 2 as a whole can be quickly placed in front of the staff, and the first limiting chuck 303, the second limiting chuck 304 and the limiting collar 305 have a clamping effect. It is convenient for the user to rotate the shielding net 2 to achieve an adjustable effect. After determining the position of the shielding net 2, the limiting mechanism 4 is activated, and the connecting hook 405 is pulled so that the connecting hook 405 can be hung on the first hook 407, so as to locate the position of the shielding net 2. However, the number and position of the first hanging plate 406 and the first hook 407 can be adjusted and installed according to the use effect of the staff; in summary, the telescopic mechanism 3 and the limiting mechanism 4 complement each other. The telescopic mechanism 3 makes the shielding net 2 adjustable and can be quickly moved down or up, which is convenient for the staff to quickly move the shielding net 2 in front of them, thereby achieving a shielding effect, and the limiting mechanism 4 is used in conjunction with the telescopic mechanism 3 to determine the position of the shielding net 2.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A temporary support for coal mine excavation, comprising a cabin plate (1), a shielding net (2) being arranged on the left side of the cabin plate (1), characterized in that: A telescopic mechanism (3) is arranged above the shielding net body (2), and a limiting mechanism (4) is arranged below the shielding net body (2). The telescopic mechanism (3) comprises a gas rod body (301), a telescopic rod (302), a first limiting chuck (303), a second limiting chuck (304), a limiting collar (305), a fixed rod (306), a rotating seat (307), a mounting rod (308) and a mounting plate body (309). The telescopic rod (302) is mounted at the lower end of the gas rod body (301), the first limiting chuck (303) and the second limiting chuck (304) are fixedly mounted at the lower end of the telescopic rod (302), a limiting collar (305) is arranged on the outer side of the second limiting chuck (304), and the limiting collar (305) is fixedly mounted on the upper end of the shielding net body (2).

2. A temporary support for coal mine excavation according to claim 1, characterized in that: A rotating seat (307) is installed at the upper end of the gas rod body (301), a mounting rod (308) is fixedly installed at the right end of the rotating seat (307), and a mounting plate (309) is fixedly installed at one end of the mounting rod (308) away from the rotating seat (307).

3. A temporary support for coal mine excavation according to claim 1, characterized in that: The limiting mechanism (4) comprises a support rod body (401), a connecting ball sleeve (402), a connecting ball body (403), a connecting rod (404), a connecting hook (405), a first hanging plate (406), a first hook (407), a second hanging plate (408) and a second hook (409); the support rod body (401) is fixedly mounted on the lower end of the shielding net body (2).

4. A temporary support for coal mine excavation according to claim 3, characterized in that: A connecting ball sleeve (402) is fixedly mounted on the lower end of the support rod body (401), and a connecting ball (403) is arranged on the inner side of the connecting ball sleeve (402).

5. A temporary support for coal mine excavation according to claim 4, characterized in that: A connecting rod (404) is fixedly mounted on the lower end of the connecting sphere (403), a connecting hook (405) is fixedly mounted on the lower end of the connecting rod (404), a first hook (407) is arranged on the outer side of the connecting hook (405), and a first hanging plate (406) is fixedly mounted on the right end of the first hook (407).

6. A temporary support for coal mine excavation according to claim 1, characterized in that: A second hanging plate (408) is arranged behind the installation rod (308), and a second hook (409) is fixedly mounted on the second hanging plate (408).

7. A temporary support for coal mine excavation according to claim 1, characterized in that: The mounting plate body (309), the first hanging plate (406) and the second hanging plate (408) are all fixedly mounted on the cabin plate (1).

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