Portable roadway whitewashing device for underground coal mine

By designing a convenient tunnel spraying device underground in the coal mine, the circular groove and ball structure in the spray gun barrel are used to achieve telescopic nozzle, combined with protective cover and return pipe, the problems of liquid leakage and material waste of the spray sprayer are solved, and meticulous Spray and safe operation.

CN222174467UActive Publication Date: 2024-12-17CHANGCUN COAL MINE OF SHANXI LUAN ENVIRONMENTAL PROTECTION ENERGY DEV CO LTD
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Patent Information

Application Number
CN202420777745.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-16
Publication Date
2024-12-17
Estimated Expiration
2034-04-16

AI Technical Summary

Technical Problem

Existing white sprayers are prone to leakage when used in coal mines, with large spray areas and no detailed spraying of edges and corners, resulting in waste of materials and requires a large number of manual wrapping facilities and climbing operations.

Method used

A convenient underground tunnel spraying device of coal mines is designed, including a spray gun barrel, a pipe collection device and a static air duct. The spray gun barrel is equipped with a circular groove and a ball structure for telescopic nozzle, and a protective cover and a return pipe are used to collect excess. Paint, static pressure air duct adjusts spraying conditions, and the pipe collection device is easy to carry.

Benefits of technology

It achieves a meticulous spraying effect, reduces material waste, avoids climbing operations, improves operational convenience and safety, and reduces pollution.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222174467U_ABST
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Abstract

A circular groove is formed in a spray gun pipe, broken through grooves are formed in the two sides of the circular groove, a telescopic spray pipe with a ball is arranged at the bottom end of the circular groove, and when the device needs to stretch out and draw back, the telescopic spray pipe is rotated to enable the ball to rotate to the broken circular groove, so that the pipeline is stretched out and drawn back, and the ball is clamped in the circular groove; a protective cover is arranged at the top end, redundant paint is effectively prevented from dripping during white spraying, the redundant paint is collected through a backflow pipe and then flows back to a skip car, the top end of a spray head is flattened, and a static pressure air pipe is used for controlling the temperature, humidity and airflow speed of a white spraying area. The stability and consistency of a spraying material in the white spraying process can be ensured by adjusting air flow in the static pressure air pipe, the white spraying effect is improved, the static pressure air pipe is beneficial for limiting spray within a white spraying area and preventing the spray from flying into the surrounding environment, pollution and waste are reduced, and meanwhile the pipe collecting device can clamp the spray gun pipe after use is finished.
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Description

Technical Field

[0001] The utility model relates to the technical field of white-spraying machine equipment, in particular to a convenient underground coal mine tunnel white-spraying device. Background Art

[0002] The existing white spraying machines have the problem of liquid leakage. The spraying coverage area is large, but detailed spraying cannot be achieved at the corners. During use, it is easy to cause material waste, and a lot of manpower is required to wrap the surrounding facilities before white spraying. At the same time, high-altitude operations are also required. There is an urgent need for a new type of white spraying equipment to achieve more detailed spraying, ensure accurate spraying and avoid the need for high-altitude operations. Utility Model Content

[0003] The utility model aims to provide a convenient tunnel whitewashing device in coal mines to solve the problems of easy leakage of whitewashing machines, large whitewashing area, inability to spray fine corners, easy waste of materials during use, high labor input for wrapping facilities along the way before whitewashing, and need for high-altitude operations.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a convenient underground coal mine tunnel white spraying device, which is installed on a white spraying vehicle, comprises a spray gun tube and a tube collecting device, wheels are connected to the left and right sides of the lower middle part of the white spraying vehicle, a hose is connected to the lower front end of the white spraying vehicle, the front end of the hose is fixedly connected to the spray gun tube, a first valve is arranged on the spray gun tube, a telescopic nozzle is installed at the front end of the spray gun tube, a nozzle is fixedly connected to the front end of the telescopic nozzle, a static pressure air duct is connected to the upper part of the telescopic nozzle, a second valve is arranged on the static pressure air duct, the tube collecting device comprises a shell, a clamping block, a reset spring, and a limit column, the shell is fixedly connected to the upper front end of the white spraying vehicle, the shell is an arc-shaped opening frame, the left and right ends of the arc-shaped opening of the shell are rotatably connected to the clamping blocks, the left and right ends of the shell are fixedly connected to the reset springs, the other end of the reset spring is fixedly connected to the outer side wall of the clamping block, the arc-shaped opening of the shell and the two clamping blocks constitute a first hose channel, rollers are vertically arranged at the front ends of the two clamping blocks, and a second hose channel is constituted between the two rollers.

[0005] Preferably, circular grooves are evenly distributed in the spray gun tube, and fixed blocks are symmetrically fixedly connected to the left and right sides of the bottom end of the telescopic nozzle, and the top of the fixed block is connected to a ball bearing that cooperates with the circular grooves of the spray gun tube.

[0006] Preferably, grooves are symmetrically provided on the left and right sides of the circular groove, and the balls of the fixed block match the grooves for quickly extending and retracting the telescopic nozzle.

[0007] Preferably, the nozzle outlet end is a flat outlet.

[0008] Preferably, a protective cover is connected between the telescopic nozzle and the nozzle. The protective cover is arranged in a trapezoidal shape. A one-way reflux pipe is fixedly connected to the upper part of the protective cover. The other end of the one-way reflux pipe is connected to the material bin of the whitewashing vehicle for recovering the whitewashing liquid to the material bin of the whitewashing vehicle.

[0009] Preferably, a material injection port is provided at the top of the white material spraying vehicle, and an air duct access port is provided at the rear end of the white material spraying vehicle.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] A circular groove is set in the spray gun tube, and disconnected through grooves are set on both sides of the circular groove. A telescopic nozzle with a ball is set at the bottom. When telescoping is required, the telescopic nozzle is rotated to make the ball rotate to the disconnected circular groove, thereby realizing the telescopic pipeline. Subsequently, the ball is stuck in the circular groove and the spraying is limited. At the same time, a protective cover is set at the top to effectively prevent excess paint from dripping during spraying. The excess paint is collected through the reflux pipe and returned to the material cart. The top of the nozzle is flattened, and the static pressure air duct is used to control the temperature, humidity and air flow velocity in the spraying area. Adjusting the air flow in the static pressure air duct can ensure the stability and consistency of the spray material during the spraying process and improve the spraying effect. The static pressure air duct helps to limit the spray within the spraying area to prevent the spray from flying into the surrounding environment, reducing pollution and waste. At the same time, the pipe collection device can clamp the spray gun tube after use for easy carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall front structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the spray gun tube structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the structure of the spray gun tube and the telescopic spray pipe cooperating with each other in the utility model.

[0015] Figure 4 It is a schematic diagram of the structure of the tube collecting device of the present utility model.

[0016] In the figure: 1. White material spraying vehicle; 201. Spray gun tube; 202. Telescopic nozzle; 203. Spray head; 204. Static pressure air duct; 205. First valve; 206. Second valve; 3. Material injection port; 4. Air duct access port; 5. Protective cover; 6. Tube collecting device. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" 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 according to specific circumstances.

[0020] 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.

[0021] Example 1: Please refer to Figure 1-3The utility model provides an embodiment: a convenient underground coal mine tunnel white spraying device, which is installed on a white spraying vehicle 1, including a spray gun tube 201 and a tube collecting device 6. Wheels are connected to the left and right sides of the lower middle part of the white spraying vehicle 1. The white spraying vehicle 1 serves as the basis and mobile platform of the device, and the bottom end is fixedly connected to the wheels for easy movement in the mine. At the same time, the wheels are arranged in the middle for easy angle adjustment during spraying, thereby avoiding damage to the hose. A hose is connected to the lower front end of the white spraying vehicle 1, and the hose connects the white spraying vehicle 1 and the spray gun tube 201 for conveying white spraying materials. The front end of the hose is fixedly connected to the spray gun tube 201, and a first valve 205 is arranged on the spray gun tube 201. The first valve 205 is used to control the flow of the white spraying material. A telescopic nozzle 202 is installed at the front end, and a nozzle 203 is fixedly connected to the front end of the telescopic nozzle 202. The nozzle 203 is located at the top of the telescopic nozzle 202 and is used to spray the whitening material onto the target surface. A static pressure air duct 204 is connected to the top of the telescopic nozzle 202. A second valve 206 is provided on the static pressure air duct 204 to control the air flow in the static pressure air duct 204 and adjust the temperature, humidity and air flow speed of the whitening area. Circular grooves are evenly distributed in the spray gun tube 201. Fixed blocks are symmetrically fixedly connected to the left and right sides of the bottom end of the telescopic nozzle 202. Ball bearings are connected to the top of the fixed block to cooperate with the circular groove of the spray gun tube 201. Grooves are symmetrically opened on the left and right sides of the circular groove. The ball bearings of the fixed block match the grooves to quickly extend the telescopic nozzle 202. The ball is fixed on the fixed block at the bottom of the telescopic nozzle 202, and cooperates with the circular groove to realize the telescopic function. The two sides of the circular groove are designed to be disconnected. When telescopic or retractable, the telescopic nozzle 202 is rotated, and the ball is rotated to the discontinuity of the circular groove, and then it can be retracted and extended. After being retracted to the white spraying position, the telescopic nozzle 202 is rotated and stuck in the circular groove for limiting. The outlet end of the nozzle 203 is a flat outlet, which is used to ensure the stability of the spraying material during the white spraying process. The flat outlet of the nozzle 203 and the control of the static pressure air duct 204 can ensure the stability and consistency of the spraying material during the white spraying process, thereby reducing the waste of materials. A material injection port 3 is provided at the top of the white spraying material vehicle 1, and a duct access port 4 is provided at the right end of the white spraying material vehicle 1. The device is installed on the whitewashing vehicle 1 and can be easily moved to the area that needs whitewashing, which improves the flexibility and convenience of operation. The whitewashing device on the whitewashing vehicle 1 transports the whitewashing material through a hose. The first valve 205 set in the spray gun tube 201 controls the flow of the whitewashing material. The circular groove and groove in the spray gun tube 201 are connected to the telescopic nozzle 202. The telescopic nozzle 202 is rotated, and the ball is rotated to the discontinuity of the circular groove, and then it can be retracted. After being retracted to the whitewashing position, the telescopic nozzle 202 is rotated and stuck in the circular groove for limiting. The nozzle 203 sprays the whitewashing material onto the surface that needs to be whitewashed. At the same time, the second valve 206 is closed and opened to control the temperature, humidity and air flow speed of the whitewashing area of ​​the static pressure air duct 204, thereby improving the whitewashing effect.

[0022] Example 2: Please refer to Figure 1 , 4 , based on Example 1, it also has the following structure:

[0023] The tube collecting device 6 includes a shell, a clamping block, a return spring, and a roller. The shell is fixedly connected to the upper front end of the white material spraying vehicle 1. The shell is an arc-shaped opening frame. The left and right ends of the arc-shaped opening of the shell are rotatably connected with clamping blocks. The left and right ends of the shell are fixedly connected with return springs. The return spring is fixed to the left and right sides of the shell to provide elastic support and automatic return function. The other end of the return spring is fixedly connected to the outer wall of the clamping block. The arc-shaped opening of the shell and the two clamping blocks constitute a first hose channel. Rollers are vertically arranged at the front ends of the two clamping blocks, and a second hose channel is formed between the two rollers. After use, the spray gun tube 201 is put into the tube collecting device 6, and the roller of the tube collecting device 6 rotates to collect the spray gun tube 201 into the arc groove to accommodate the spray gun tube 201. When it needs to be taken out, the clamping block rotates to squeeze the return spring, and then the spray gun tube 201 is taken out. The pulling force of the return spring resets it. An anti-static spring is connected between the telescopic nozzle 202 and the nozzle 203. Shield 5, shield 5 is connected between telescopic nozzle 202 and nozzle 203, is arranged in trapezoidal shape, is used to protect nozzle 203 and surrounding environment, prevents white spray liquid from splashing, shield 5 is connected between telescopic nozzle 202 and nozzle 203, shield 5 is arranged in trapezoidal shape, a one-way reflux pipe is fixedly connected on shield 5, the other end of the one-way reflux pipe is connected to the silo of white spray material vehicle 1, is used to recover white spray liquid to the silo of white spray material vehicle 1, white spray material vehicle 1 is moved to the position where white spraying is required, spray gun pipe 201 conveys white spray material through hose, shield 5 between telescopic nozzle 202 and nozzle 203 collects the excess paint sprayed, prevents the excess paint from falling, and recovers the white spray liquid to the silo through reflux pipe, realizes high efficiency, environmental protection and safety of white spraying operation, the design of pipe collecting device 6 and shield 5 takes into account the convenience and safety of operators, makes the use of white spraying device more convenient and efficient.

[0024] The above is only an embodiment of the utility model, and the common sense such as the known specific structure and characteristics in the scheme is not described too much here. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A portable underground coal mine tunnel whitewashing device, installed on a whitewashing vehicle (1), characterized in that: The invention comprises a spray gun tube (201) and a tube collecting device (6). The left and right sides of the lower middle part of the spray gun vehicle (1) are connected to wheels. The lower front end of the spray gun vehicle (1) is connected to a hose. The front end of the hose is fixedly connected to the spray gun tube (201). The spray gun tube (201) is provided with a first valve (205). The front end of the spray gun tube (201) is provided with a telescopic nozzle (202). The front end of the telescopic nozzle (202) is fixedly connected to a nozzle (203). The upper end of the telescopic nozzle (202) is connected to a static pressure air duct (204). The static pressure air duct (204) is connected to the static pressure air duct (204). 04) is provided with a second valve (206), the tube collecting device (6) comprises a shell, a clamping block, a return spring, and a limit column, the shell is fixedly connected to the upper front end of the white material spraying vehicle (1), the shell is an arc-shaped opening frame, the left and right ends of the arc-shaped opening of the shell are rotatably connected with clamping blocks, the left and right ends of the shell are fixedly connected with return springs, the other end of the return spring is fixedly connected to the outer wall of the clamping block, the arc-shaped opening of the shell and the two clamping blocks form a first hose channel, the front ends of the two clamping blocks are vertically provided with rollers, and the second hose channel is formed between the two rollers.

2. A portable underground coal mine tunnel whitewashing device according to claim 1, characterized in that: Circular grooves are evenly distributed in the spray gun tube (201), and fixed blocks are symmetrically fixedly connected to the left and right sides of the bottom end of the telescopic spray pipe (202), and the top of the fixed block is connected to a ball bearing that cooperates with the circular groove of the spray gun tube (201).

3. A portable underground coal mine tunnel whitewashing device according to claim 2, characterized in that: Grooves are symmetrically provided on the left and right sides of the circular groove, and the balls of the fixed block match the grooves for quickly extending and retracting the telescopic nozzle (202).

4. A portable underground coal mine tunnel whitewashing device according to claim 1, characterized in that: The outlet end of the nozzle (203) is a flat outlet.

5. The portable underground coal mine tunnel whitewashing device according to claim 3 is characterized in that: A protective cover (5) is connected between the telescopic nozzle (202) and the nozzle (203). The protective cover (5) is arranged in a trapezoidal shape. A one-way return pipe is fixedly connected to the upper portion of the protective cover (5). The other end of the one-way return pipe is connected to the material bin of the whitening material spraying vehicle (1) for recovering the whitening liquid to the material bin of the whitening material spraying vehicle (1).

6. A portable underground coal mine tunnel whitewashing device according to claim 1, characterized in that: The top of the white material spraying vehicle (1) is provided with a material injection port (3), and the rear end of the white material spraying vehicle (1) is provided with an air duct access port (4).