Single-point single-control type centralized lubricating device
By designing a single-point single-control centralized lubrication device including mixing pipe, closure mechanism, linkage structure and automatic closing module, the problems of pressure instability and lubricating oil residue in the existing device are solved, and the lubricating oil output is achieved. Uniformity and stability, and prevent equipment damage and oil leakage.
Patent Information
- Application Number
- CN202411965743.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-02-18
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing single-point single-control centralized lubricating device has unstable pressure when the compressed gas is output, resulting in uneven lubricating oil spraying, and when the lubricating oil is closed, it is easy to drip oil and damage the equipment.
A single-point single-controlled centralized lubrication device including a mixing tube, a closure mechanism, a linkage structure and an automatic closing module are designed. The mixing pipe ensures the stability of the lubricant output through the mixing of compressed gas and lubricant; the sealing mechanism and linkage structure are automatically closed when the lubricating work is stopped to prevent lubricant from remaining; the automatic closing module is automatically closed when the gas and oil transmission are interrupted. , prevent pollution and oil leakage.
Through the design of the mixing tube, the uniformity and stability of the lubricant spray amount is achieved, the equipment damage caused by lubricant residue is avoided, and oil leakage is prevented during disassembly.
Smart Images
Figure CN119468006A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of lubrication devices, in particular to a single-point single-control centralized lubrication device. Background Art
[0002] The single-point single-control centralized lubrication device provides lubricant to the friction parts of the equipment through a certain pressure and flow rate, which is used to reduce the wear and friction of the equipment and improve the reliability and service life of the equipment. The advantage of the single-point single-control centralized lubrication device lies in its single-point control capability, which can independently control a single lubrication point. Compared with the traditional open-loop control system, the single-point single-control centralized lubrication device can more accurately control the supply of lubricant, thereby improving the lubrication effect, saving costs, effectively improving the operating efficiency of the equipment, and reducing the failure rate caused by poor lubrication effect. Existing lubrication devices usually transport pressurized oil to the lubrication point and then spray it evenly on the surface of the lubrication equipment through a special atomizing nozzle to achieve the lubrication effect. Existing lubrication devices often have unstable pressure when compressing gas output, resulting in uneven lubricant spraying. When the lubrication device is turned off, a portion of lubricant will remain in the lubricant nozzle, and the remaining lubricant is easy to drip, causing damage to the equipment.
[0003] Based on this, a single-point single-control centralized lubrication device is now provided to eliminate the disadvantages of the existing device. Summary of the invention
[0004] The object of the present invention is to provide a single-point single-control centralized lubrication device to solve the problems in the background technology.
[0005] To achieve the above object, the present invention provides the following technical solutions:
[0006] A single-point single-control centralized lubrication device comprises a mixing tube, the surface of the mixing tube is fixedly connected to a mounting seat, the surface of the mounting seat is provided with bolts for fixing, the upper end of the mixing tube is provided with a gas delivery seat for inputting high-pressure gas, the rear end of the mixing tube is provided with an oil delivery seat for inputting lubricating oil, the front end of the mixing tube is provided with an atomizing port for outputting atomized lubricating oil, the interior of the mixing tube is provided with a sealing mechanism for timely sealing the lubricating oil, the interior of the atomizing port is provided with a linkage structure for sealing the atomizing port output port when the mixing tube is closed, and the interior of the gas delivery seat is provided with an automatic closing module for automatically closing the gas delivery seat when the gas is cut off.
[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution:
[0008] In an optional solution: the closing mechanism includes a valve block No. 1, the valve block No. 1 is fixedly connected to the inner wall of the mixing tube, a through hole is provided on the surface of the valve block No. 1, a valve block No. 2 is provided on the side of the valve block No. 1 for closing or opening the valve block No. 1, and a transmission mechanism is provided on the side of the valve block No. 2 to drive the valve block No. 2 to move.
[0009] In an optional solution: the transmission mechanism includes a slide groove, the inner wall of the No. 1 valve block is provided with a slide groove, the side of the No. 2 valve block is provided with a slider adapted to the slide groove, and the surface of the No. 2 valve block is provided with an adjustment component for adjusting the output pressure of the No. 2 valve block.
[0010] In an optional solution: the adjustment component includes a buffer seat, the No. 2 valve block includes a sliding sleeve and a sliding ring, a No. 1 spring is arranged inside the sliding sleeve to drive the sliding ring to move, and the sliding ring is rotatably connected to the sliding groove.
[0011] In an optional scheme: the linkage structure includes a sliding rod, which is arranged inside the atomization port, one end of the sliding rod is fixedly connected to the surface of the No. 2 valve block, and the other end of the sliding rod is slidably connected to a sliding sleeve, and the middle of the sliding sleeve is fixedly connected to a scraping element for scraping off the lubricating oil on the inner wall of the atomization port when outputting the lubricating oil.
[0012] In an optional solution: the scraping element includes a scraper blade, the scraper blade is fixedly connected to the surface of the sliding sleeve, and one end of the sliding sleeve is fixedly connected to a switch element for opening or closing the atomization port.
[0013] In an optional solution: the switch member includes a No. 3 valve block, the No. 3 valve block is fixedly connected to the sliding sleeve, the No. 3 valve block is rotatably connected to the inner wall of the atomization port, and a No. 4 valve block is arranged inside the atomization port.
[0014] In an optional scheme: the automatic closing module includes an air guide block, an air guide block is provided inside the air delivery seat, a No. 1 sliding groove is provided in the middle of the air guide block, the No. 1 sliding groove is slidably connected to the No. 1 sliding block, the upper end of the No. 1 sliding block is fixedly connected to the No. 2 spring, the upper end of the No. 2 spring is fixedly connected to the inner wall of the No. 1 sliding groove, the lower end of the No. 1 sliding block is fixedly connected to the No. 1 transmission rod, the lower end of the No. 1 transmission rod is fixedly connected to the No. 1 closing block, an air guide groove is provided on the side of the No. 1 closing block, and a leakage-proof device for automatically closing the oil delivery seat is provided inside the mixing tube.
[0015] In an optional scheme: the leakage prevention device includes a fixed tube, the fixed tube is fixedly connected to the inner wall of the mixing tube, the fixed tube is provided with a guide tube inside, the guide tube is provided with a No. 2 sliding groove in the middle, the No. 2 sliding groove is slidably connected to a No. 2 sliding block, the No. 2 sliding block is fixedly connected to one end of a No. 3 spring, the other end of the No. 3 spring is fixedly connected to the inner wall of the No. 2 sliding groove, the surface of the No. 2 sliding block is fixedly connected to one end of a No. 2 transmission rod, the other end of the No. 2 transmission rod is fixedly connected to a No. 2 closing block, and two guide grooves are provided on the side of the No. 2 closing block.
[0016] In an optional solution: a sealing sleeve is provided on the surface of the No. 2 valve block.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] 1. The present invention mixes compressed gas and lubricating oil through a mixing tube. The lubricating oil impacts the second valve block through the through hole provided on the surface of the first valve block to move. The slider slides in the slide groove to drive the second valve block to rotate and adjust the output. The third valve block automatically adjusts the size of the output port following the rotation amplitude of the second valve block to maintain the output of the lubricating oil.
[0019] 2. The present invention provides a closed storage condition for the lubricating oil by the buffer seat driving the No. 2 valve block to close when the lubrication work is stopped, and the No. 2 valve block drives the No. 3 valve block to close, thereby preventing oil dripping from damaging the equipment.
[0020] 2. The present invention drives the No. 1 sliding block and the No. 1 transmission rod to reset through the No. 2 spring, and the No. 1 transmission rod drives the No. 1 closing block to block the air delivery seat, and drives the No. 2 sliding block and the No. 2 transmission rod to reset through the No. 3 spring, and the No. 2 transmission rod drives the No. 2 closing block to block the oil delivery seat, thereby automatically sealing the interior of the single-point single-control type centralized lubrication device to prevent the air delivery seat and the oil delivery seat from being contaminated, and to prevent oil leakage and damage to the equipment when disassembling the single-point single-control type centralized lubrication device. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural schematic diagram of the present invention.
[0022] Figure 2 It is a schematic structural diagram of the mixing tube of the present invention.
[0023] Figure 3 It is a schematic structural diagram of the mixing tube of the present invention.
[0024] Figure 4 It is a structural schematic diagram of the atomization port of the present invention.
[0025] Figure 5 It is a schematic structural diagram of valve block No. 3 of the present invention.
[0026] Figure 6 It is a schematic structural diagram of the gas guide block of the present invention.
[0027] Figure 7 It is a structural schematic diagram of a No. 1 closing block of the present invention.
[0028] Figure 8 It is a structural schematic diagram of the No. 2 closing block of the present invention.
[0029] Reference numerals: 101. Mixing tube, 102. Mounting seat, 103. Gas delivery seat, 104. Oil delivery seat, 105. Atomizing port, 201. No. 1 valve block, 202. No. 2 valve block, 203. Slide groove, 204. Sliding block, 205. Buffer seat, 301. Sliding rod, 302. Sliding sleeve, 303. Scraper, 304. No. 3 valve block, 305. No. 4 valve block, 401. Guide Gas block, 402, sliding groove No. 1, 403. Spring No. 2, 404. Sliding block No. 1, 405. Transmission rod No. 1, 406. Closing block No. 1, 407. Gas guide groove, 408. Fixed pipe, 409. Diversion pipe, 410. Spring No. 3, 411. Sliding block No. 2, 412. Transmission rod No. 2, 413. Closing block No. 2, 414. Diversion groove, 415. Sliding groove No. 2. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.
[0031] In one embodiment, Figure 1-Figure 3 As shown, a single-point single-control centralized lubrication device includes a mixing tube 101, the surface of the mixing tube 101 is fixedly connected to a mounting seat 102, the surface of the mounting seat 102 is provided with bolts for fixing, the upper end of the mixing tube 101 is provided with a gas delivery seat 103 for inputting high-pressure gas, the rear end of the mixing tube 101 is provided with an oil delivery seat 104 for inputting lubricating oil, the front end of the mixing tube 101 is provided with an atomizing port 105 for outputting atomized lubricating oil, and the interior of the mixing tube 101 is provided with a sealing mechanism for timely sealing the lubricating oil. The atomizing port 105 is provided with a linkage structure for closing the output port of the atomizing port 105 when the mixing tube 101 is closed, and the gas delivery seat 103 is provided with an automatic closing module for automatically closing the gas delivery seat 103 when the gas is cut off. A single-point single-control centralized lubrication device is installed through the mounting seat 102, compressed gas is input through the gas delivery seat 103, and lubricating oil is input through the oil delivery seat 104. The compressed gas and hydraulic oil are mixed in the mixing tube 101, and the mixed compressed gas and hydraulic oil are output through the atomizing port 105 to complete centralized lubrication;
[0032] In one embodiment, Figure 2 and Figure 3As shown, the closing mechanism includes a No. 1 valve block 201, the No. 1 valve block 201 is fixedly connected to the inner wall of the mixing tube 101, the surface of the No. 1 valve block 201 is provided with a through hole, the side of the No. 1 valve block 201 is provided with a No. 2 valve block 202 for closing or opening the No. 1 valve block 201, and the side of the No. 2 valve block 202 is provided with a transmission mechanism for driving the No. 2 valve block 202 to move, the compressed gas and the lubricating oil are mixed inside the mixing tube 101, and the mixed lubricating oil is output through the through hole provided on the surface of the No. 1 valve block 201, and the through hole on the surface of the No. 1 valve block 201 is closed or opened by the No. 2 valve block 202, so as to provide a closed condition for the inside of the mixing tube 101, facilitate the isolation of the lubricating oil from the air, and improve the preservation quality of the lubricating oil;
[0033] In one embodiment, Figure 2 and Figure 3 As shown, the transmission mechanism includes a slide groove 203, the inner wall of the No. 1 valve block 201 is provided with a slide groove 203, the side of the No. 2 valve block 202 is provided with a slider 204 adapted to the slide groove 203, and the surface of the No. 2 valve block 202 is provided with an adjustment component for adjusting the output pressure of the No. 2 valve block 202, the lubricating oil impacts the No. 2 valve block 202 through the through hole provided on the surface of the No. 1 valve block 201 to move, the No. 2 valve block 202 drives the slider 204 to move, and the slider 204 slides in the slide groove 203 to drive the No. 2 valve block 202 to rotate and start oil delivery;
[0034] In one embodiment, Figure 2 and Figure 3 As shown, the regulating assembly includes a buffer seat 205, the No. 2 valve block 202 includes a sliding sleeve and a sliding ring, the sliding sleeve is provided with a No. 1 spring to drive the sliding ring to move, the sliding ring is rotatably connected to the slide groove 203, when the lubricating oil output pressure is strong, the No. 2 valve block 202 is fully opened, when the lubricating oil output pressure is weakened, the buffer seat 205 adjusts the rotation amplitude of the No. 2 valve block 202, reduces the size of the output port, maintains the lubricating oil output pressure, and automatically maintains the lubricating oil output amount;
[0035] In one embodiment, Figure 4 and Figure 5 As shown, the linkage structure includes a sliding rod 301, which is arranged inside the atomizing port 105, one end of the sliding rod 301 is fixedly connected to the surface of the second valve block 202, and the other end of the sliding rod 301 is slidably connected to the sliding sleeve 302. The middle of the sliding sleeve 302 is fixedly connected to a scraping element for scraping the lubricating oil on the inner wall of the atomizing port 105 when the lubricating oil is output. The sliding rod 301 is driven to rotate by the rotation of the second valve block 202, and the sliding rod 301 drives the sliding sleeve 302 to rotate, so as to provide conditions for opening the output port of the atomizing port 105;
[0036] In one embodiment, Figure 4 and Figure 5As shown, the scraping element includes a scraper 303, the scraper 303 is fixedly connected to the surface of the sliding sleeve 302, and one end of the sliding sleeve 302 is fixedly connected to a switch member for opening or closing the atomizing port 105. The scraper 303 is driven to rotate by the rotation of the sliding sleeve 302, and the scraper 303 drives the lubricating oil remaining on the inner wall of the atomizing port 105 during the rotation process;
[0037] In one embodiment, Figure 4 and Figure 5 As shown, the switch member includes a No. 3 valve block 304, the No. 3 valve block 304 is fixedly connected to the sliding sleeve 302, the No. 3 valve block 304 is rotatably connected to the inner wall of the atomizing port 105, and a No. 4 valve block 305 is arranged inside the atomizing port 105, and the No. 3 valve block 304 is driven to rotate by the rotation of the scraper 303, and the size of the output port is automatically adjusted by the rotation amplitude of the No. 3 valve block 304 to maintain the output amount of the lubricating oil;
[0038] In one embodiment, Figure 6-Figure 8 As shown, the automatic closing module includes an air guide block 401, an air guide block 401 is arranged inside the air delivery seat 103, a No. 1 sliding groove 402 is arranged in the middle of the air guide block 401, a No. 1 sliding groove 402 is slidably connected to a No. 1 sliding block 404, an upper end of the No. 1 sliding block 404 is fixedly connected to a No. 2 spring 403, an upper end of the No. 2 spring 403 is fixedly connected to the inner wall of the No. 1 sliding groove 402, a lower end of the No. 1 sliding block 404 is fixedly connected to a No. 1 transmission rod 405, a lower end of the No. 1 transmission rod 405 is fixedly connected to a No. 1 closing block 406, and the No. 1 closing block 406 is fixedly connected to the No. 1 sliding block 406. An air guide groove 407 is provided on the side, and a leak-proof device for automatically closing the oil delivery seat 104 is provided inside the mixing tube 101. By inputting high-pressure gas, the gas is input into the air guide groove 407 through the air guide block 401, and the air guide groove 407 lifts the No. 1 closing block 406 to enter the interior of 101 to react with the lubricating oil. When the gas supply is interrupted, the No. 2 spring 403 drives the No. 1 sliding block 404 to reset, the No. 1 sliding block 404 drives the No. 1 transmission rod 405 to reset, and the No. 1 transmission rod 405 drives the No. 1 closing block 406 to reset, thereby blocking the gas delivery seat 103 and preventing the gas from entering the mixing tube 101.
[0039] In one embodiment, Figure 6-Figure 8As shown, the leakage prevention device includes a fixed tube 408, the fixed tube 408 is fixedly connected to the inner wall of the mixing tube 101, the fixed tube 408 is provided with a guide tube 409 inside, the guide tube 409 is provided with a No. 2 sliding groove 415 in the middle, the No. 2 sliding groove 415 is slidably connected to the No. 2 sliding block 411, the No. 2 sliding block 411 is fixedly connected to one end of the No. 3 spring 410, the other end of the No. 3 spring 410 is fixedly connected to the inner wall of the No. 2 sliding groove 415, the surface of the No. 2 sliding block 411 is fixedly connected to one end of the No. 2 transmission rod 412, the other end of the No. 2 transmission rod 412 is fixedly connected to the inner wall of the No. 2 sliding groove 415, the No. 2 sliding block 411 is fixedly connected to one end of the No. 2 transmission rod 412 The No. 2 closing block 413 is connected, and two guide grooves 414 are provided on the side of the No. 2 closing block 413. By inputting lubricating oil, the lubricating oil enters the guide groove 414 through the guide pipe 409, and the lubricating oil lifts the No. 2 closing block 413 and enters the mixing tube 101 to mix with the gas. When the lubricating oil input is interrupted, the No. 3 spring 410 drives the No. 2 sliding block 411 to reset, the No. 2 sliding block 411 drives the No. 2 transmission rod 412 to reset, and the No. 2 transmission rod 412 drives the No. 2 closing block 413 to reset, thereby blocking the oil delivery seat 104 and preventing oil leakage when disassembling the single-point single-control centralized lubrication device.
[0040] The above embodiment discloses a single-point single-control centralized lubrication device, wherein the single-point single-control centralized lubrication device is installed through the mounting seat 102, compressed gas is input through the gas delivery seat 103, and lubricating oil is input through the oil delivery seat 104. The compressed gas and hydraulic oil are mixed inside the mixing tube 101, and the mixed lubricating oil is output through the through hole provided on the surface of the first valve block 201. The lubricating oil impacts the second valve block 202 through the through hole provided on the surface of the first valve block 201, and the second valve block 202 drives the slider 204 to move, and the slider 204 slides in the slide groove 203. The second valve block 202 is driven to rotate and start oil delivery. When the lubricating oil output pressure is strong, the second valve block 202 is fully opened. When the lubricating oil output pressure is weakened, the buffer seat 205 adjusts the rotation amplitude of the second valve block 202 to reduce the size of the output port, maintain the lubricating oil output pressure, and automatically maintain the lubricating oil output. The second valve block 202 rotates to drive the sliding rod 301 to rotate, the sliding rod 301 drives the sliding sleeve 302 to rotate, and the sliding sleeve 302 rotates to drive the scraper 303 to rotate. During the rotation process, the scraper 303 drives the lubricating oil remaining on the inner wall of the atomizing port 105 to be scraped off. The rotation of the plate 303 drives the No. 3 valve block 304 to rotate. The output port size is automatically adjusted by the rotation amplitude of the No. 3 valve block 304 to maintain the output of the lubricating oil. By inputting high-pressure gas, the gas is input into the inside of the gas guide groove 407 through the gas guide block 401. The gas guide groove 407 lifts the No. 1 closing block 406 to enter the inside of 101 to react with the lubricating oil. When the gas supply is interrupted, the No. 2 spring 403 drives the No. 1 sliding block 404 to reset, the No. 1 sliding block 404 drives the No. 1 transmission rod 405 to reset, and the No. 1 transmission rod 405 drives the No. 1 closing block 406 to reset, so as to realize the gas supply seat 103 is blocked to prevent gas from entering the mixing tube 101. By inputting lubricating oil, the lubricating oil enters the guide groove 414 through the guide tube 409, and the lubricating oil lifts the No. 2 closing block 413 to enter the mixing tube 101 and mix with the gas. When the lubricating oil input is interrupted, the No. 3 spring 410 drives the No. 2 sliding block 411 to reset, the No. 2 sliding block 411 drives the No. 2 transmission rod 412 to reset, and the No. 2 transmission rod 412 drives the No. 2 closing block 413 to reset, thereby sealing the oil delivery seat 104 and preventing oil leakage when disassembling the single-point single-control centralized lubrication device.
[0041] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A single-point single-control centralized lubrication device, comprising a mixing tube (101), the surface of the mixing tube (101) being fixedly connected to a mounting seat (102), the upper end of the mixing tube (101) being provided with a gas delivery seat (103) for inputting high-pressure gas, the rear end of the mixing tube (101) being provided with an oil delivery seat (104) for inputting lubricating oil, the front end of the mixing tube (101) being provided with an atomizing port (105) for outputting atomized lubricating oil, characterized in that: A sealing mechanism for timely sealing the lubricating oil is provided inside the mixing tube (101), a linkage structure for sealing the output port of the atomizing port (105) when the mixing tube (101) is sealed is provided inside the atomizing port (105), and an automatic closing module for automatically sealing the gas delivery seat (103) when the gas is cut off is provided inside the gas delivery seat (103).
2. The single-point single-control centralized lubrication device according to claim 1 is characterized in that: The closing mechanism comprises a valve block No. 1 (201), the valve block No. 1 (201) being fixedly connected to the inner wall of the mixing tube (101), a through hole being provided on the surface of the valve block No. 1 (201), a valve block No. 2 (202) being provided on the side of the valve block No. 1 (201) for closing or opening the valve block No. 1 (201), and a transmission mechanism being provided on the side of the valve block No. 2 (202) for driving the valve block No. 2 (202) to move.
3. The single-point single-control centralized lubrication device according to claim 2 is characterized in that: The transmission mechanism comprises a slide groove (203), the inner wall of the first valve block (201) is provided with a slide groove (203), the side of the second valve block (202) is provided with a sliding block (204) adapted to the slide groove (203), and the surface of the second valve block (202) is provided with an adjusting component for adjusting the output pressure of the second valve block (202).
4. The single-point single-control centralized lubrication device according to claim 3 is characterized in that: The regulating assembly comprises a buffer seat (205), the No. 2 valve block (202) comprises a sliding sleeve and a sliding ring, a No. 1 spring for driving the sliding ring to move is arranged inside the sliding sleeve, and the sliding ring is rotatably connected to the sliding groove (203).
5. The single-point single-control centralized lubrication device according to claim 1, characterized in that: The linkage structure comprises a sliding rod (301), wherein the sliding rod (301) is arranged inside the atomizing port (105), one end of the sliding rod (301) is fixedly connected to the surface of the second valve block (202), the other end of the sliding rod (301) is slidably connected to a sliding sleeve (302), and the middle of the sliding sleeve (302) is fixedly connected to a scraping element for scraping off the lubricating oil on the inner wall of the atomizing port (105) when outputting the lubricating oil.
6. The single-point single-control centralized lubrication device according to claim 5, characterized in that: The scraping element comprises a scraper blade (303), the scraper blade (303) is fixedly connected to the surface of the sliding sleeve (302), and one end of the sliding sleeve (302) is fixedly connected to a switch element for opening or closing the atomization port (105).
7. The single-point single-control centralized lubrication device according to claim 6, characterized in that: The switch element comprises a No. 3 valve block (304), the No. 3 valve block (304) is fixedly connected to the sliding sleeve (302), the No. 3 valve block (304) is rotatably connected to the inner wall of the atomization port (105), and a No. 4 valve block (305) is arranged inside the atomization port (105).
8. The single-point single-control centralized lubrication device according to claim 1, characterized in that: The automatic closing module comprises an air guide block (401), the air delivery seat (103) is provided with an air guide block (401), a first sliding groove (402) is provided in the middle of the air guide block (401), the first sliding groove (402) is slidably connected to a first sliding block (404), the upper end of the first sliding block (404) is fixedly connected to a second spring (403), the upper end of the second spring (403) is fixedly connected to the inner wall of the first sliding groove (402), the lower end of the first sliding block (404) is fixedly connected to a first transmission rod (405), the lower end of the first transmission rod (405) is fixedly connected to a first closing block (406), a side of the first closing block (406) is provided with an air guide groove (407), and a leak-proof device for automatically closing the oil delivery seat (104) is provided inside the mixing tube (101).
9. The single-point single-control centralized lubrication device according to claim 8, characterized in that: The anti-leakage device comprises a fixed tube (408), wherein the fixed tube (408) is fixedly connected to the inner wall of the mixing tube (101), a guide tube (409) is arranged inside the fixed tube (408), a No. 2 sliding groove (415) is arranged in the middle of the guide tube (409), a No. 2 sliding block (411) is slidably connected inside the No. 2 sliding groove (415), the No. 2 sliding block (411) is fixedly connected to one end of a No. 3 spring (410), the other end of the No. 3 spring (410) is fixedly connected to the inner wall of the No. 2 sliding groove (415), the surface of the No. 2 sliding block (411) is fixedly connected to one end of a No. 2 transmission rod (412), the other end of the No. 2 transmission rod (412) is fixedly connected to a No. 2 closing block (413), and two guide grooves (414) are arranged on the side of the No. 2 closing block (413).
10. The single-point single-control centralized lubrication device according to claim 2, characterized in that: A sealing sleeve is provided on the surface of the No. 2 valve block (202).