Long-distance liquid supply pipeline connecting piece for coal mine

Abstract

The long-distance liquid supply pipeline connecting piece for the coal mine comprises pipelines, and the male ends and the female ends of every two adjacent pipelines are connected in an inserted mode. The outer side of the connecting position of the pipelines on the left side and the right side is sleeved with a hoop, the male end and the female end of each pipeline are both in threaded connection with a compression nut, the compression nuts compress the hoops when rotating and translating along the threads, and connection of the pipelines is achieved; a clamping groove is formed in the periphery of the male end of the pipeline, a sealing ring is placed in the clamping groove, the outer side of the sealing ring and the inner wall of the pipeline extrude each other, and sealing is achieved through the sealing ring. According to the long-distance liquid supply pipeline connecting piece for the coal mine, the pressing nut moves to extrude the upper hoop and the lower hoop, multiple sealing is achieved, the sealing performance of the pipeline connecting position is effectively improved, the layout is compact, installation and use are convenient and fast, the sealing performance is good, the male ends and the female ends of the two adjacent pipelines are firmly installed, and the long-distance liquid supply pipeline connecting piece is suitable for long-distance liquid supply.

Description

Technical Field

[0001] The utility model relates to the technical field of mining pipelines, in particular to a long-distance liquid supply pipeline connector for coal mines. Background Art

[0002] Coal mines are places with complex dust environments. The long-term presence of coal dust can easily cause mine accidents. Emulsions can be sprayed or coated on coal mine roads, tunnels and other places to form a stable emulsion film, which plays a role in adhesion and dust suppression, reducing dust emission and diffusion. At the same time, emulsions can prevent the generation of coal dust sparks, reduce the risk of fire and explosion, and ensure the safety of miners and workers. Generally, coal mines are mined at a relatively deep depth, so the distance for transporting emulsions is relatively long, so multiple pipelines are required for connection.

[0003] For example, a long-distance liquid supply pipe clamp connection assembly for coal mines with publication number CN216867798U includes a first pipe and a second pipe that need to be connected. The outer sides of the first pipe and the second pipe are both provided with an outer clamp, a clamping nut, an inner clamp and a straight-through piece for connection.

[0004] The connection assembly is used to achieve connection by rotating the compression nut and the clamp, and the two pipes are connected through a straight-through piece. The pipe connection on the straight-through piece is not a direct connection. Seals need to be installed at the contact position between the straight-through piece and the pipe, which is inconvenient to install and also increases material costs. Utility Model Content

[0005] The utility model aims to provide a long-distance liquid supply pipeline connector for coal mines, so as to solve the problem in the background technology that the straight-through parts and the contact positions of the pipelines in the current market need to be installed with seals, which is inconvenient to install and also increases the material cost.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a long-distance liquid supply pipeline connector for coal mines, comprising a pipeline, wherein the male ends and female ends of two adjacent pipelines are plugged into each other; and further comprising:

[0007] Clamps are sleeved on the outside of the pipe connection positions on the left and right sides. The male and female ends of the pipes are threadedly connected with compression nuts. When the compression nuts rotate and translate along the threads, they press the clamps tightly to achieve the connection of the pipes.

[0008] A clamping groove is provided around the male end of the pipe, a sealing ring is placed inside the clamping groove, the outer side of the sealing ring is pressed against the inner wall of the pipe, and sealing is achieved by the setting of the sealing ring.

[0009] Preferably, a fixing frame is passed through and fixed to both the male end and the female end of the pipe, and a spring piece is installed on the inner wall of the fixing frame, and a fixing block is installed at an equal angle on the outer side of the clamping nut.

[0010] Preferably, the fixing block and the spring sheet are engaged with each other, the spring sheet and the fixing block are both inclined, and the inclination degrees of the fixing block and the spring sheet are the same.

[0011] Preferably, the moving distance of the clamping nut is smaller than the overlapping distance between the clamping nut and the fixing frame, and the moving distance of the clamping nut is smaller than the length of the spring sheet. The setting of the spring sheet allows the clamping nut to rotate in only one direction, thereby preventing the clamping nut from loosening.

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

[0013] 1. The utility model is provided with a clamping nut and a clamping hoop, and the clamping nut is threadedly connected to the pipeline. The clamping nut moves synchronously during the rotation, and the movement of the clamping nut squeezes the upper and lower clamps to achieve multi-pass sealing, which effectively improves the sealing of the pipeline connection. The utility model is ingenious in conception, compact in layout, convenient and quick to install and use, with good sealing. The male end and the female end of two adjacent pipelines are firmly installed, which is suitable for long-distance liquid supply. The pipeline can be disconnected at the connection position where the pressure is too high due to being too long. The connection method is simple, the construction labor intensity is low, the labor intensity is reduced, the economy is higher, and it is more convenient in processing and assembly.

[0014] 2. The utility model is provided with a fixing frame, a spring sheet and a fixing block. When the clamping nut rotates counterclockwise, the spring sheet will not affect the normal rotation of the clamping nut. When the clamping nut rotates clockwise, the spring sheet will resist the fixing block to limit the clamping nut, so that the clamping nut can only rotate in one direction. The clamping nut will not loosen between the pipeline, thereby making the pipeline connection more secure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the clamp of the utility model;

[0017] Figure 3 This is a schematic diagram of the main cross-sectional structure of the compression nut of the utility model;

[0018] Figure 4 This is a schematic diagram of the side section structure of the fixed frame of the utility model;

[0019] Figure 5 This is a schematic diagram of the main cross-sectional structure of the pipeline of the utility model.

[0020] In the figure: 1. pipe; 2. clamp; 3. slot; 4. fixing frame; 5. spring; 6. sealing ring; 7. fixing block; 8. tightening nut. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0023] A long-distance liquid supply pipeline connector for coal mines includes a pipeline 1, and the male ends and female ends of two adjacent pipelines 1 are plugged into each other; it also includes: a clamp 2 is sleeved on the outer side of the connection position of the pipeline 1 on the left and right sides, and the male end and the female end of the pipeline 1 are both threadedly connected with a clamping nut 8, and the clamping nut 8 is pressed against the clamp 2 when it rotates and translates along the thread to achieve the connection of the pipeline 1; a clamping groove 3 is opened around the male end position of the pipeline 1, and a sealing ring 6 is placed inside the clamping groove 3, and the outer side of the sealing ring 6 is pressed against the inner wall of the pipeline 1, and sealing is achieved by the setting of the sealing ring 6.

[0024] Install the sealing ring 6 into the slot 3 at the male end of one pipe 1, and then insert it into the female end of another pipe 1 to connect the two pipes 1. Then place the clamp 2 up and down to hold the connection position of the two pipes 1. Then other personnel rotate the clamping nuts 8 at both ends counterclockwise. The two clamping nuts 8 are close to each other and sleeved on the outside of the clamp 2 to tighten the clamp 2 to complete the assembly. The connection method is simple, the construction labor intensity is low, and the labor intensity is reduced.

[0025] The male end and the female end of the pipe 1 are both penetrated and fixed with a fixing frame 4, and the inner wall of the fixing frame 4 is installed with a spring piece 5, and the outer side of the clamping nut 8 is installed with a fixing block 7 at an equal angle, and the fixing block 7 and the spring piece 5 are engaged with each other. The spring piece 5 and the fixing block 7 are both inclined, and the inclination degree of the fixing block 7 and the spring piece 5 is the same. The moving distance of the clamping nut 8 is less than the overlapping distance between the clamping nut 8 and the fixing frame 4, and the moving distance of the clamping nut 8 is less than the length of the spring piece 5. Through the setting of the spring piece 5, the clamping nut 8 can only rotate in one direction, thereby preventing the clamping nut 8 from loosening.

[0026] The male end and the female end of the pipe 1 are both CNC precision-machined connectors. The pipe 1 is used to transport the emulsion needed for coal mining. The locking nut 8 drives the fixed block 7 to rotate synchronously during the counterclockwise rotation. The locking nut 8 can only rotate counterclockwise and cannot rotate clockwise through the setting of the fixed block 7 and the spring piece 5. The spring piece 5 limits the locking nut 8, so that the locking nut 8 can only rotate in one direction, which can prevent the locking nut 8 from loosening and is suitable for long-distance transportation. The connection position will not fall off.

[0027] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A long-distance liquid supply pipeline connector for coal mines, comprising a pipeline (1), wherein the male ends and female ends of two adjacent pipelines (1) are plugged into each other, and characterized in that: Also includes: A clamp (2) is sleeved on the outer side of the connection position of the left and right pipes (1), and the male end and the female end of the pipe (1) are both threadedly connected with a clamping nut (8), and the clamping nut (8) is pressed against the clamp (2) when it rotates and translates along the thread, thereby achieving the connection of the pipe (1); A clamping groove (3) is provided around the male end of the pipe (1), a sealing ring (6) is placed inside the clamping groove (3), and the outer side of the sealing ring (6) and the inner wall of the pipe (1) are pressed against each other, so that sealing is achieved by the arrangement of the sealing ring (6).

2. A long-distance liquid supply pipeline connector for coal mines according to claim 1, characterized in that: The male end and the female end of the pipe (1) are both penetrated and fixed with a fixing frame (4), and the inner wall of the fixing frame (4) is installed with a spring piece (5), and the outer side of the clamping nut (8) is installed with a fixing block (7) at an equal angle.

3. A long-distance liquid supply pipeline connector for coal mines according to claim 2, characterized in that: The fixing block (7) and the spring sheet (5) are mutually engaged, and both the spring sheet (5) and the fixing block (7) are arranged to be inclined, and the fixing block (7) and the spring sheet (5) have the same degree of inclination.

4. A long-distance liquid supply pipeline connector for coal mines according to claim 3, characterized in that: The moving distance of the clamping nut (8) is less than the overlapping distance between the clamping nut (8) and the fixing frame (4), and the moving distance of the clamping nut (8) is less than the length of the spring sheet (5). The setting of the spring sheet (5) allows the clamping nut (8) to rotate in only one direction, thereby preventing the clamping nut (8) from loosening.

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