Single line lubrication system

Abstract

The application relates to a single-line lubricating system which comprises a lubricating pump, a plurality of distributors and a plurality of quantitative distribution valves, fixed pipes are arranged at input and output ports of the lubricating pump, the plurality of distributors and the plurality of quantitative distribution valves, a conveying pipeline comprises a connecting pipe, two auxiliary pipes and two moving pipes, the two auxiliary pipes are fixedly installed at the outer sides of the two ends of the connecting pipe, the two moving pipes correspond to the two auxiliary pipes one by one, sliding grooves are arranged at the outer sides of the auxiliary pipes, moving rings located in the sliding grooves are arranged at the end portions of the moving pipes, the moving rings are movably connected with the auxiliary pipes, internal threads are arranged on the ring surfaces in the moving pipes, quick inserting pipes are arranged at the end portions of the fixed pipes, and external threads matched with the moving pipes are arranged on the ring surfaces of the quick inserting pipes. The end portions of the connecting pipe and the fixed pipe are connected, the moving pipes are moved along the sliding grooves to the direction close to the fixed pipe, the moving pipes are rotated to be screwed with the quick inserting pipes, the conveying pipeline is quickly installed, and each component in the lubricating system is conveniently replaced and maintained.

Description

Technical Field

[0001] This application relates to the field of lubrication systems, and more particularly to a single-line lubrication system. Background Technology

[0002] Single-line lubrication systems are the most widely used total-loss lubrication systems in the machinery industry. The lubrication pump pumps grease from the oil tank, and the grease enters the delivery pipeline through the pressure relief valve. After the system is pressurized, the grease is delivered to the lubrication points through the branch pipeline under the control of the metering valve. It features a variety of lubrication point supply, flexible assembly, precise dosage, convenient installation, and the ability to perform targeted spray lubrication.

[0003] For related technology, please refer to Chinese Patent No. CN210291363U, which discloses a single-line lubrication system, including a delivery pump body, a delivery pipeline connected to the delivery pump body, and several distributors connected to the delivery pipeline; a delivery valve is connected to the end of the delivery pipeline away from the delivery pump body, and a pressurizing device is connected to the end of the delivery valve away from the delivery pipeline. The pressurizing device includes an oil storage tank for storing oil and a pressurizing pump body for pressurizing. The pressurizing device is connected to a pressurizing pipeline, which is connected to the delivery pipeline. A control device for controlling the start and stop of the pressurizing device is provided at the top of the oil storage tank.

[0004] Regarding the aforementioned technologies, in a single-line lubrication system, the connecting delivery pipeline is fixed, making it impossible to quickly assemble or disassemble the delivery pipeline, thus reducing the efficiency of the pipeline assembly and disassembly. Utility Model Content

[0005] To improve the efficiency of disassembly and assembly of delivery pipelines, this application provides a single-line lubrication system.

[0006] This application provides a single-line lubrication system, which adopts the following technical solution: A single-line lubrication system includes a lubrication pump, several distributors, and several metering valves. The lubrication pump, distributors, and metering valves are connected by a delivery pipeline. Fixed pipes are installed at the input and output ports of the lubrication pump, distributors, and metering valves. The delivery pipeline includes a connecting pipe, two auxiliary pipes, and two movable pipes. The two auxiliary pipes are fixedly installed on the outer sides of both ends of the connecting pipe. The two movable pipes correspond one-to-one with the two auxiliary pipes. A sliding groove is formed on the outer side of each auxiliary pipe. A movable ring is provided at the end of each movable pipe within the sliding groove, and the movable ring is movably connected to the auxiliary pipe. An internal thread is formed on the inner surface of the movable pipe. A quick-connect tube is provided at the end of the fixed pipe, and an external thread that mates with the movable tube is formed on the outer surface of the quick-connect tube.

[0007] By adopting the above technical solution, when the lubrication pump, several distributors, and several quantitative distribution valves need to be connected through a delivery pipeline, the ends of the connecting pipe and the fixed pipe are connected, the moving pipe moves along the sliding groove towards the fixed pipe, and the moving pipe is rotated to connect with the quick-connect pipe via a threaded connection, thus achieving rapid installation of the delivery pipeline; when the delivery pipeline needs to be removed, the moving pipe is rotated to move away from the quick-connect pipe, thus separating the moving pipe from the quick-connect pipe, thereby separating the connecting pipe from the fixed pipe, achieving rapid disassembly of the delivery pipeline, improving the disassembly and assembly efficiency of the delivery pipeline, and facilitating the replacement and maintenance of various components in the lubrication system.

[0008] Optionally, a limiting tube is provided on the outside of the fixed tube, and a limiting groove that cooperates with the limiting tube is opened at one end of the auxiliary tube near the fixed tube.

[0009] By adopting the above technical solution, when the connecting pipe is connected to the fixed pipe, the connecting pipe is inserted into the limiting pipe, which facilitates the connection between the fixed pipe and the connecting pipe. The end of the limiting pipe near the auxiliary pipe is connected to the limiting groove, which limits the position of the limiting pipe near the auxiliary pipe and improves the stability of the limiting pipe.

[0010] Optionally, the end of the limiting tube near the sliding groove has a rounded corner.

[0011] By adopting the above technical solution, the rounded corners facilitate the insertion of the connecting pipe into the limiting pipe, thereby improving the ease of connecting the fixing pipe and the connecting pipe.

[0012] Optionally, a sealing groove is provided on the outer side of the end of the connecting pipe and the fixing pipe that are close to each other. A sealing gasket is provided in the sealing groove. The outer side of the sealing gasket is fixedly connected to the inner annular surface of the limiting pipe. A sealing ring is provided in the limiting groove. The inner diameter of the sealing ring is smaller than the outer diameter of the limiting pipe. The sealing ring is elastic.

[0013] By adopting the above technical solution, the sealing gasket improves the sealing performance of the connection between the connecting pipe and the fixed pipe, and prevents grease leakage at the connection between the connecting pipe and the fixed pipe; when the limiting pipe is inserted into the limiting groove, the sealing ring makes an interference fit with the limiting pipe through elasticity, which improves the sealing performance between the limiting pipe and the limiting groove, and prevents grease leakage at the connection between the limiting pipe and the limiting groove.

[0014] Optionally, a gasket is provided between the fixed tube and the moving tube.

[0015] By adopting the above technical solution, the gasket avoids direct contact between the fixed tube and the moving tube, prevents the fixed tube and the moving tube from sticking together, and facilitates the disassembly of the fixed tube and the moving tube.

[0016] Optionally, the outer wall of the end of the movable tube closest to the fixed tube is configured with an external hexagonal structure.

[0017] By adopting the above technical solution, when it is necessary to dismantle the delivery pipeline, the hexagonal structure of the movable tube can be easily rotated with a hexagonal wrench to move the movable tube away from the quick-connect tube, which facilitates the separation of the movable tube from the quick-connect tube and improves the dismantling efficiency of the movable tube and the quick-connect tube.

[0018] Optionally, the outer ring surface of the connecting pipe away from the fixed pipe is provided with a dustproof pipe, the inner ring surface of the dustproof pipe is in contact with the outer ring surface of the moving pipe, and a connecting ring is sleeved on the outer ring surface of the connecting pipe, the connecting ring being connected to the end of the dustproof pipe away from the fixed pipe.

[0019] By adopting the above technical solution, the dust-proof pipe can prevent dust from entering the sliding groove, avoid the moving pipe from being unable to move or being obstructed, and improve the disassembly efficiency of the moving pipe and the limiting pipe.

[0020] Optionally, the delivery pipeline is connected to several metering valves via a connecting block.

[0021] By adopting the above technical solution, the connecting block connects several adjacent quantitative distribution valves. The grease is transported to the connecting block through the delivery pipeline. The connecting block distributes the grease to the quantitative distribution valves, buffering the grease flowing into the quantitative distribution valves and improving the stability of the quantitative distribution valves in receiving grease.

[0022] Optionally, a pressure relief pipeline is connected to one side of the delivery pipeline, and a pressure switch is installed at the end of the pressure relief pipeline away from the delivery pipeline.

[0023] By adopting the above technical solution, the pressure switch monitors the pressure of the grease in the delivery pipeline, and controls the delivery pipeline to release pressure to maintain a stable internal pressure, thereby achieving a stable supply of grease in the delivery pipeline and maintaining the stability of the grease delivery in the delivery pipeline.

[0024] In summary, this application includes at least one of the following beneficial technical effects of a single-line lubrication system: 1. When the lubrication pump, several distributors and several quantitative distribution valves need to be connected through a delivery pipeline, the ends of the connecting pipe and the fixed pipe are connected. The moving pipe moves along the sliding groove towards the fixed pipe. The moving pipe is rotated to make the moving pipe threadedly connected to the quick-connect pipe, realizing the quick installation of the delivery pipeline. When the delivery pipeline needs to be removed, the moving pipe is rotated to move the moving pipe away from the quick-connect pipe, so that the moving pipe is separated from the quick-connect pipe, thereby separating the connecting pipe from the fixed pipe, realizing the quick disassembly of the delivery pipeline, improving the disassembly and assembly efficiency of the delivery pipeline, and facilitating the replacement and maintenance of various components in the lubrication system. 2. The sealing gasket improves the sealing performance of the connection between the connecting pipe and the fixed pipe, preventing grease leakage at the connection point. When the limiting pipe enters the limiting groove, the sealing ring connects the inner side of the sealing ring with the outer side of the limiting pipe through elasticity, improving the sealing performance between the limiting pipe and the limiting groove and preventing grease leakage at the connection point. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of a single-line lubrication system; Figure 2 This is a schematic diagram illustrating the connection relationship between the moving ring and the sliding groove in this application; Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0026] Explanation of reference numerals in the attached drawings: 1. Delivery pipeline; 11. Connecting pipe; 12. Moving pipe; 121. Moving ring; 122. Internal thread; 13. Auxiliary pipe; 131. Sliding groove; 132. Limiting groove; 14. Sealing groove; 141. Sealing gasket; 15. Sealing ring; 16. Dustproof pipe; 161. Connecting ring; 2. Fixed pipe; 21. Quick-connect pipe; 22. External thread; 23. Limiting pipe; 231. Rounded corner; 3. Gasket; 4. Lubrication pump; 5. Distributor; 6. Metering valve; 61. Connecting block; 7. Pressure switch; 71. Pressure relief pipeline. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings.

[0028] This application discloses a single-line lubrication system.

[0029] Reference Figure 1 The system includes a lubrication pump 4, several distributors 5, and several metering valves 6, which are connected by a delivery pipeline 1. The lubrication pump 4 delivers lubricating grease through the delivery pipeline 1 to the distributors 5, and then the distributors 5 deliver the grease through the delivery pipeline 1 to the metering valves 6. The metering valves 6 deliver the lubricating grease to the lubrication points, facilitating the supply to multiple lubrication points and improving the working efficiency of the lubrication points.

[0030] Reference Figure 1 The delivery pipeline 1 is connected to several metering valves 6 via a connecting block 61. The connecting block 61 connects several adjacent metering valves 6. The grease is delivered to the connecting block 61 through the delivery pipeline 1, and then distributed to the metering valves 6 through the connecting block 61. This buffers the grease flowing into the metering valves 6 and improves the stability of the metering valves 6 in receiving the grease.

[0031] Reference Figure 1 A pressure relief pipe 71 is connected to one side of the delivery pipeline, and a pressure switch 7 is installed at the end of the pressure relief pipe 71 away from the delivery pipeline. The pressure switch 7 monitors the pressure of the grease in the delivery pipeline 1, and controls the delivery pipeline 1 to release pressure to maintain a stable internal pressure, thereby achieving a stable supply of grease in the delivery pipeline 1 and maintaining the stability of the grease delivery in the delivery pipeline 1.

[0032] Reference Figure 1 and Figure 2 The lubrication pump 4, several distributors 5, and several quantitative distribution valves 6 are all equipped with fixed pipes 2 at their input and output ports. The delivery pipeline 1 includes a connecting pipe 11, two auxiliary pipes 13, and two moving pipes 12. The two auxiliary pipes 13 are fixedly installed on the outer sides of both ends of the connecting pipe 11. The two moving pipes 12 correspond one-to-one with the two auxiliary pipes 13. A sliding groove 131 is opened on the outer side of the auxiliary pipe 13. A moving ring 121 located in the sliding groove 131 is installed at the end of the moving pipe 12. The moving ring 121 is movably connected to the auxiliary pipe 13. An internal thread 122 is opened on the inner ring surface of the moving pipe 12. A quick-connect pipe 21 is installed at the end of the fixed pipe 2. An external thread 22 that mates with the moving pipe 12 is opened on the outer ring surface of the quick-connect pipe 21.

[0033] When the lubrication pump 4, several distributors 5, and several quantitative distribution valves 6 need to be connected through the delivery pipeline 1, the ends of the connecting pipe 11 and the fixed pipe 2 are connected, and the moving pipe 12 moves along the sliding groove 131 towards the fixed pipe 2. The moving pipe 12 is rotated to make it threadedly connected to the quick-connect pipe 21, thus realizing the quick installation of the delivery pipeline 1. When the delivery pipeline 1 needs to be removed, the moving pipe 12 is rotated to move it away from the quick-connect pipe 21, so that the moving pipe 12 is separated from the quick-connect pipe 21, thereby separating the connecting pipe 11 from the fixed pipe 2, realizing the quick disassembly of the delivery pipeline 1, improving the disassembly and assembly efficiency of the delivery pipeline 1, and facilitating the replacement and maintenance of various components in the lubrication system.

[0034] Reference Figure 2 The outer wall of the end of the movable tube 12 closest to the fixed tube 2 is designed with an external hexagonal structure. When it is necessary to remove the delivery pipeline 1, the movable tube 12 with the external hexagonal structure can be easily rotated with a hexagonal wrench to move the movable tube 12 away from the quick-connect tube 21, which facilitates the separation of the movable tube 12 from the quick-connect tube 21 and improves the disassembly efficiency of the movable tube 12 and the quick-connect tube 21.

[0035] Reference Figure 2A limiting tube 23 is installed on the outside of the fixed tube 2, and a limiting groove 132 that mates with the limiting tube 23 is opened at the end of the auxiliary tube 13 near the fixed tube 2. When the connecting tube 11 is connected to the fixed tube 2, the connecting tube 11 is inserted into the limiting tube 23, which facilitates the connection between the fixed tube 2 and the connecting tube 11. The end of the limiting tube 23 near the auxiliary tube 13 is connected to the limiting groove 132, which limits the position of the limiting tube 23 near the auxiliary tube 13, thereby improving the stability of the limiting tube 23. A gasket 3 is installed between the fixed tube 2 and the moving tube 12. The gasket 3 prevents the fixed tube 2 and the moving tube 12 from directly contacting each other, avoids adhesion between the fixed tube 2 and the moving tube 12, and facilitates the disassembly of the fixed tube 2 and the moving tube 12.

[0036] Reference Figure 3 The end of the limiting tube 23 near the sliding groove 131 has a rounded corner 231. The rounded corner 231 facilitates the insertion of the connecting tube 11 into the limiting tube 23, improving the ease of connecting the fixing tube 2 and the connecting tube 11.

[0037] Reference Figure 2 Both the connecting pipe 11 and the fixed pipe 2 have sealing grooves 14 on their outer sides at their closest points. A sealing gasket 141 is installed within the sealing groove 14, and the outer side of the sealing gasket 141 is fixedly connected to the inner annular surface of the limiting pipe 23. A sealing ring 15 is installed within the limiting groove 132. The inner diameter of the sealing ring 15 is smaller than the outer diameter of the limiting pipe 23, and the sealing ring 15 is made of elastic rubber. The sealing gasket 141 improves the sealing performance of the connection between the connecting pipe 11 and the fixed pipe 2, preventing grease leakage at the connection point. When the limiting pipe 23 is inserted into the limiting groove 132, the sealing ring 15, through elasticity, provides an interference fit with the limiting pipe 23, improving the sealing performance between the limiting pipe 23 and the limiting groove 132, and preventing grease leakage at the connection point.

[0038] Reference Figure 2 A dustproof tube 16 is installed on the outer ring surface of the end of the connecting pipe 11 away from the fixed pipe 2. The inner ring surface of the dustproof tube 16 is in contact with the outer ring surface of the moving pipe 12. A connecting ring 161 is sleeved on the outer ring surface of the connecting pipe 11, and the connecting ring 161 is connected to the end of the dustproof tube 16 away from the fixed pipe 2. The dustproof tube 16 can prevent dust from entering the sliding groove 131, avoid the moving pipe 12 from being unable to move or being obstructed from moving, and improve the disassembly efficiency of the moving pipe 12 and the limiting pipe 23.

[0039] The implementation principle of a single-line lubrication system according to an embodiment of this application is as follows: When a delivery pipeline 1 needs to be connected between the lubrication pump 4, several distributors 5 and several quantitative distribution valves 6, the fixed pipe 2 is inserted into the limiting pipe 23, and the fixed pipe 2 is connected to the connecting pipe 11. The moving pipe 12 moves along the sliding groove 131 towards the fixed pipe 2, and the moving pipe 12 is rotated to make the moving pipe 12 threadedly connected to the quick-connect pipe 21, thereby realizing the quick installation of the delivery pipeline 1. When it is necessary to remove the delivery pipeline 1, the moving pipe 12 is rotated and moved away from the quick-connect pipe 21, so that the moving pipe 12 is separated from the quick-connect pipe 21, thereby separating the connecting pipe 11 from the fixed pipe 2, thereby realizing the quick disassembly of the delivery pipeline 1.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A single-line lubrication system, comprising a lubrication pump (4), a plurality of distributors (5), and a plurality of metering valves (6), wherein the lubrication pump (4), the plurality of distributors (5), and the plurality of metering valves (6) are connected by a delivery pipeline (1), characterized in that: The lubrication pump (4), several distributors (5) and several quantitative distribution valves (6) are all equipped with fixed pipes (2) at their input and output ports. The delivery pipeline (1) includes a connecting pipe (11), two auxiliary pipes (13) and two moving pipes (12). The two auxiliary pipes (13) are fixedly installed on the outside of both ends of the connecting pipe (11). The two moving pipes (12) correspond one-to-one with the two auxiliary pipes (13). The auxiliary pipes (13) have sliding grooves (131) on their outer sides. The moving pipes (12) have moving rings (121) located in the sliding grooves (131) at their ends. The moving rings (121) are movably connected to the auxiliary pipes (13). The moving pipes (12) have internal threads (122) on their inner ring surfaces. The fixed pipes (2) have quick-connect pipes (21) at their ends. The quick-connect pipes (21) have external threads (22) on their outer ring surfaces that cooperate with the moving pipes (12).

2. The single-line lubrication system according to claim 1, characterized in that: A limiting tube (23) is provided on the outside of the fixed tube (2), and a limiting groove (132) that cooperates with the limiting tube (23) is provided on the end of the auxiliary tube (13) near the fixed tube (2).

3. A single-line lubrication system according to claim 2, characterized in that: The limiting tube (23) has a rounded corner (231) at one end near the sliding groove (131).

4. A single-line lubrication system according to claim 2, characterized in that: A sealing groove (14) is provided on the outer side of the end of the connecting pipe (11) and the fixing pipe (2) that are close to each other. A sealing gasket (141) is provided in the sealing groove (14). The outer side of the sealing gasket (141) is fixedly connected to the inner annular surface of the limiting pipe (23). A sealing ring (15) is provided in the limiting groove (132). The inner diameter of the sealing ring (15) is smaller than the outer diameter of the limiting pipe (23). The sealing ring (15) is elastic.

5. A single-line lubrication system according to claim 1, characterized in that: A gasket (3) is provided between the fixed tube (2) and the moving tube (12).

6. A single-line lubrication system according to claim 1, characterized in that: The outer wall of the movable tube (12) near the fixed tube (2) is configured with an external hexagonal structure.

7. A single-line lubrication system according to claim 1, characterized in that: A dustproof tube (16) is provided on the outer ring surface of the end of the connecting tube (11) away from the fixed tube (2). The inner ring surface of the dustproof tube (16) is in contact with the outer ring surface of the moving tube (12). A connecting ring (161) is sleeved on the outer ring surface of the connecting tube (11). The connecting ring (161) is connected to the end of the dustproof tube (16) away from the fixed tube (2).

8. A single-line lubrication system according to claim 1, characterized in that: The delivery pipeline (1) is connected to several quantitative distribution valves (6) through a connecting block (61).

9. A single-line lubrication system according to claim 1, characterized in that: One side of the delivery pipeline (1) is connected to a pressure relief pipeline (71), and a pressure switch (7) is provided at the end of the pressure relief pipeline (71) away from the delivery pipeline (1).

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