Telescopic people blocking device used in underground roadway

Abstract

The utility model discloses a telescopic people-blocking device used in an underground roadway, which comprises an adjusting hydraulic oil cylinder, an adjusting hydraulic oil cylinder, an adjusting hydraulic oil cylinder, an adjusting hydraulic oil cylinder and an adjusting hydraulic oil cylinder, the left side of the left fixing plate is fixedly connected with the movable end of the adjusting hydraulic oil cylinder; one end of the blocking chain is fixedly connected with the right side of the left fixing plate, and the other end of the blocking chain extends towards the scraper conveyor; the right fixing plate is fixed to a side plate of a machine head of the scraper conveyor, the left side of the right fixing plate is fixedly connected with the other end of the blocking chain, then the blocking chain is located in the space between the reversed loader and the scraper conveyor, and personnel are prevented from falling into a middle groove of the reversed loader between the reversed loader and the scraper conveyor; the blocking chain is arranged between the scraper conveyor and the hinged groove of the reversed loader, so that the blocking chain can be located in the air, personnel which slip and are about to fall into the middle groove of the reversed loader between the reversed loader and the scraper conveyor are blocked, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the field of coal mine production, and particularly relates to a retractable person-blocking device for underground roadways. Background Art

[0002] A scraper conveyor is a mechanical device for transporting materials, mainly used for short-distance transportation with a horizontal or inclination angle not greater than 15 degrees. It consists of components such as a frame, rollers, scrapers, chains, motors, and speed reducers.

[0003] The full name of a conveyor is a scraper conveyor for gate road. It is a bridge-type scraper conveyor installed in the sectional haulage gateway at the lower outlet of a mine working face. During operation, one end is lapped with the conveyor on the working face, and the other end is connected to the tail of the belt conveyor. Its role in the three-machine matching of large-scale fully mechanized mining technology is to transfer the coal transported by the scraper conveyor on the mining face to the belt conveyor after raising it from the roadway floor.

[0004] At the head of the scraper conveyor in the coal mining face, operations such as unloading side bolts, cleaning floating coal, and end support are required. Since the total length of the discharge chute of the conveyor is 6m, when cleaning floating coal and unloading side bolts at the head of the scraper conveyor, if there is spalling or when lifting a single prop, personnel are prone to slipping and falling into the intermediate chute of the conveyor between the conveyor and the scraper conveyor. Content of the Utility Model

[0005] The purpose of the utility model is to provide a retractable person-blocking device for underground roadways to solve the problem that personnel are prone to falling into the intermediate chute of the conveyor between the conveyor and the scraper conveyor.

[0006] The utility model adopts the following technical solutions: A retractable person-blocking device for underground roadways, comprising:

[0007] An adjusting hydraulic cylinder, horizontally arranged, whose fixed end is fixed on the outer side wall of the articulated chute of the conveyor, and whose movable end extends towards the scraper conveyor;

[0008] A left fixing plate, vertically arranged, whose left side is fixedly connected to the movable end of the adjusting hydraulic cylinder;

[0009] A blocking chain, horizontally arranged, one end of which is fixedly connected to the right side of the left fixing plate, and the other end of which extends towards the scraper conveyor;

[0010] A right fixing plate, vertically arranged, which is fixed on the side plate of the head of the scraper conveyor. The right fixing plate and the left fixing plate are both arranged on the same side of the conveyor. The left side of the right fixing plate is fixedly connected to the other end of the blocking chain, so that the blocking chain is in the space between the conveyor and the scraper conveyor and prevents personnel from falling into the intermediate chute of the conveyor between the conveyor and the scraper conveyor.

[0011] Furthermore, three blocking chains are provided and are arranged at intervals from top to bottom in sequence.

[0012] Furthermore, the controller of the adjusting hydraulic cylinder is electrically connected to the scraper conveyor, and is used to extend the piston rod when the scraper conveyor retreats in the direction away from the working face, and retract when the transfer machine retreats in the direction away from the working face, and then move back and forth.

[0013] Furthermore, the scraper conveyor is located at the uphill position of the roadway, and the articulated slot of the transfer machine is located at the downhill position of the roadway, and the gradient of the roadway ≤ 15 degrees.

[0014] The beneficial effects of the present utility model are as follows:

[0015] By arranging a blocking chain between the articulated slot of the scraper conveyor and the transfer machine, the present utility model can make the blocking chain in mid-air, thereby blocking personnel who slip and are about to fall into the intermediate slot of the transfer machine between the transfer machine and the scraper conveyor, and thus avoiding safety accidents;

[0016] Through three blocking chains arranged at intervals, the present utility model can form a large-area block within a certain range, avoiding the situation where a single blocking chain cannot block the fall of personnel. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the present utility model.

[0018] Wherein: 10, adjusting hydraulic cylinder; 11, articulated slot; 12, scraper conveyor; 13, left fixing plate; 14, blocking chain; 15, right fixing plate. Detailed Embodiments

[0019] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments.

[0020] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is 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. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more. The "direction" in the present utility model is described based on the direction when the present utility model is in Figure 1 the state.

[0021] The present utility model discloses a retractable personnel blocking device for an underground roadway, as Figure 1 shown, which includes an adjusting hydraulic cylinder 10, a left fixing plate 13, a blocking chain 14, and a right fixing plate 15.

[0022] The adjusting hydraulic cylinder 10 is horizontally arranged, the fixed end of the adjusting hydraulic cylinder 10 is fixed on the outer side wall of the hinge slot 11 of the transfer machine, and the movable end of the adjusting hydraulic cylinder 10 extends towards the scraper conveyor 12.

[0023] The left fixing plate 13 is vertically arranged, and the left side of the left fixing plate 13 is fixedly connected to the movable end of the adjusting hydraulic cylinder 10; the blocking chain 14 is horizontally arranged, one end of the blocking chain 14 is fixedly connected to the right side of the left fixing plate 13, and the other end of the blocking chain 14 extends towards the scraper conveyor 12.

[0024] The right fixing plate 15 is vertically arranged, the right fixing plate 15 is fixed on the side plate of the head of the scraper conveyor 12, the right fixing plate 15 and the left fixing plate 13 are both arranged on the same side of the transfer machine, and the left side of the right fixing plate 15 is fixedly connected to the other end of the blocking chain 14, so that the blocking chain 14 is in the space between the transfer machine and the scraper conveyor 12, and prevents personnel from falling into the middle trough of the transfer machine between the transfer machine and the scraper conveyor 12.

[0025] Three blocking chains 14 are provided and are arranged at intervals from top to bottom in sequence. Through the three blocking chains arranged at intervals in the present utility model, a large - area block can be formed within a certain range, preventing a single blocking chain from being unable to block the fall of personnel.

[0026] The controller for adjusting the hydraulic cylinder 10 is electrically connected to the scraper conveyor 12. The controller for adjusting the hydraulic cylinder 10 is configured to extend the piston rod when the scraper conveyor 12 retreats away from the working face, and retract when the transfer conveyor retreats away from the working face, and thus move back and forth.

[0027] The scraper conveyor 12 is located at the uphill position of the roadway, and the articulated chute 11 of the transfer conveyor is located at the downhill position of the roadway, and the slope of the roadway ≤ 15 degrees.

[0028] Embodiment 1

[0029] In a certain coal mine working face, work such as removing side bolts, cleaning floating coal at the head of the scraper conveyor, and end support is required at the head of the scraper conveyor. Since the total length of the discharge chute of the transfer conveyor is 6m, when cleaning floating coal and removing side bolts at the head of the scraper conveyor, if there is rib spalling or when lifting a single prop, personnel are prone to slipping and falling into the intermediate chute of the transfer conveyor between the transfer conveyor and the scraper conveyor. Now, materials are selected to make the present utility model. The right fixing plate 15 and the left fixing plate 13 are made of steel pipes. The details of the required materials are as follows:

[0030]

[0031]

[0032] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A retractable man-blocking device for use in underground tunnels, characterized in that: include: The adjusting hydraulic cylinder (10) is horizontally arranged, with its fixed end fixed on the outer side wall of the hinge groove (11) of the transfer machine, and its movable end extending toward the scraper conveyor (12); A left fixed plate (13) is arranged vertically, and its left side is fixedly connected to the movable end of the adjusting hydraulic cylinder (10); A blocking chain (14) is arranged horizontally, one end of which is fixedly connected to the right side of the left fixed plate (13), and the other end of which extends toward the scraper conveyor (12); The right fixed plate (15) is vertically arranged and fixed on the side plate of the head of the scraper conveyor (12). The right fixed plate (15) and the left fixed plate (13) are arranged on the same side of the transfer machine. The left side of the right fixed plate (15) is fixedly connected to the other end of the blocking chain (14), so that the blocking chain (14) is located in the space between the transfer machine and the scraper conveyor (12), and people are prevented from falling into the middle groove of the transfer machine between the transfer machine and the scraper conveyor (12).

2. A retractable man-blocking device for use in underground tunnels according to claim 1, characterized in that: The blocking chains (14) are provided in three pieces and are arranged in sequence from top to bottom at intervals.

3. The retractable man-blocking device for use in underground tunnels according to claim 1, characterized in that: The controller of the regulating hydraulic cylinder (10) is electrically connected to the scraper conveyor (12) and is used to extend the piston rod when the scraper conveyor (12) moves backward in a direction away from the working surface, and to retract it when the transfer machine moves backward in a direction away from the working surface, thereby performing a reciprocating motion.

4. The retractable man-blocking device for underground tunnels according to claim 1, characterized in that: The scraper conveyor (12) is located at an uphill position of the lane, and the hinge groove (11) of the transfer machine is located at a downhill position of the lane, and the slope of the lane is ≤15 degrees.

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