Single point lubrication pump

Abstract

The utility model discloses a single point lubrication pump can guarantee the sealing effect in use not thickened sealing ring, including pump body, driving arrangement, pump oil device and oil bag, be equipped with installation cavity, oil outlet channel and the oil inlet channel of oblique arrangement in the pump body, the top of pump body is provided with one open setting's joint installation mouth, and pump oil device includes plunger, sliding sleeve and check valve, and sliding sleeve and check valve are installed in installation cavity and are one left and right setting, and the oil storage channel is equipped with in sliding sleeve, and sliding sleeve is provided with the oil inlet of communicating with oil storage channel, and one end of oil inlet channel communicates with joint installation mouth, and the other end communicates with oil inlet, and one end of oil outlet channel communicates with check valve, and driving arrangement is installed in pump body, and plunger is installed in the output of driving arrangement and can be installed in oil storage channel axially slip, and a sealing ring is installed in joint installation mouth, and metal structure is embedded in sealing ring, and the oil bag has an oil bag joint, and the oil bag joint is installed in joint installation mouth, and seals the sealing ring to the downward pressure.

Description

Technical Field

[0001] This utility model relates to the field of lubrication equipment, and in particular to a single-point lubrication pump. Background Technology

[0002] In production activities, the lubrication system of equipment plays a very important role. Whether the lubrication system can work properly directly affects the smooth progress of production. In order to ensure smooth production, it is necessary to ensure that the equipment is well lubricated.

[0003] For large equipment, multiple locations often require lubrication, but these locations are sometimes not clustered together. Using lubrication equipment requires long branch lines to supply oil to each location, resulting in a complex and bulky structure that is inconvenient for production layout and installation. Furthermore, when a branch line breaks, the break point becomes a pressure relief point in the system, leading to reduced lubrication pressure and affecting the amount and effectiveness of lubrication. To address this, a single-point lubrication pump has been introduced to the market, capable of providing lubrication to a specific lubrication point and ensuring proper lubrication at that point. Existing single-point lubrication pumps have an inclined oil inlet channel with a connector mounting port at one end. To ensure the sealing effect of the oil tank connector, a sealing ring is installed in the mounting port. When the oil tank is installed, the oil tank connector squeezes the sealing ring, causing it to deform and become trapped in the oil inlet channel, leading to seal failure. Some manufacturers use thicker sealing rings. While these rings have high strength, their thickness prevents the oil tank connector from being properly installed in the mounting port, and their poor rigidity results in a mediocre sealing effect.

[0004] Therefore, there is an urgent need for a single-point lubrication pump that can guarantee a sealing effect even without thickened sealing rings to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a single-point lubrication pump that can guarantee a sealing effect even when using a non-thickened sealing ring.

[0006] To achieve the above objectives, the single-point lubrication pump of this utility model includes a pump body, a drive unit, an oil pumping device, and an oil tank. The pump body has an installation cavity, an oil outlet channel, and an inclined oil inlet channel. An open connector mounting port is provided at the top of the pump body. The oil pumping device includes a plunger, a sliding sleeve, and a check valve. The sliding sleeve and the check valve are each installed in the installation cavity, arranged to the left and right respectively. The sliding sleeve has an oil storage channel and an oil inlet communicating with the oil storage channel. One end of the oil inlet channel communicates with the connector mounting port, and the other end communicates with the oil inlet port. One end of the oil outlet channel communicates with the check valve. The plunger is axially slidable. The pump is mounted on the oil reservoir, the drive unit is mounted on the pump body, the plunger is mounted on the output end of the drive unit, a sealing ring is installed in the connector mounting port, the sealing ring has a metal structure embedded in it, the oil tank has an oil tank connector, the oil tank connector is installed in the connector mounting port and presses down on the sealing ring, the drive unit drives the plunger to slide axially away from the check valve to open the oil inlet and close the check valve, the oil in the oil tank flows into the oil reservoir through the oil inlet channel, the drive unit drives the plunger to slide axially closer to the check valve to close the oil inlet, and pushes the oil in the oil reservoir to open the check valve, the oil in the oil reservoir flows into the oil outlet channel.

[0007] Preferably, the sealing ring also includes an upper adhesive body and a lower adhesive body. The upper adhesive body, the metal structure, and the lower adhesive body are stacked from top to bottom and vulcanized together. The upper adhesive body, the lower adhesive body, and the metal structure are arranged in a ring shape, and the three of them form an oil passage hole.

[0008] Preferably, the bottom of the connector mounting port is provided with a groove, the oil inlet channel is connected to the groove, the edge of the groove is provided with a notch structure facing the oil inlet channel, and part of the sealing ring structure is suspended in the notch structure.

[0009] Preferably, the one-way valve includes a valve body, a valve seat, a mounting head, and a resilient element. The valve seat has a valve cavity, and one end of the valve seat has an oil passage opening into the oil storage channel. The valve body has a plug structure. The mounting head is installed on the end of the valve seat away from the oil passage and seals that end. The resilient element is located between the valve body and the mounting head. The resilient element always has the tendency to push the valve body away from the mounting head, causing the plug structure to be inserted and close the oil passage. The side wall of the valve seat has an oil drain port, and the oil outlet channel communicates with the oil drain port.

[0010] Preferably, the drive unit includes a drive motor, a worm, a worm wheel, and a crank. The drive motor is mounted on the pump body, the worm is mounted on the output end of the drive motor, the worm wheel is centrally pivotally mounted on the pump body, and the worm wheel meshes with the worm for transmission. The first end of the crank is hinged to the worm wheel, and the second end of the crank is hinged to the plunger.

[0011] Preferably, the single-point lubrication pump of this invention also includes a power supply, which is located on one side of the drive motor and electrically connected to the drive motor.

[0012] Preferably, the sliding sleeve has a cylindrical structure, and the valve seat is tightly fitted to one end of the sliding sleeve.

[0013] Preferably, an oil outlet connector is installed at one end of the oil outlet channel.

[0014] Preferably, the single-point lubrication pump of this utility model also includes a protective cover, which is installed on the pump body and covers the drive device, pump body and power supply.

[0015] Preferably, the single-point lubrication pump of this utility model also includes a protective cover, which is installed on the pump body. The protective cover and the protective shield are arranged one above the other. The oil tank is located inside the protective cover. A push spring is installed inside the protective cover. The push spring constantly pushes the oil tank, causing the oil in the oil tank to flow to the oil inlet channel.

[0016] Compared with the prior art, in this utility model, the sealing ring has an embedded metal structure, which allows the sealing ring to maintain its structural rigidity and strength without thickening. When the oil tank joint presses down on the sealing ring, it can seal the oil tank joint, ensuring the sealing effect. The driving device drives the plunger to slide axially away from the one-way valve to open the oil inlet and close the one-way valve, allowing the oil in the oil tank to flow into the oil storage channel through the oil inlet channel. The driving device drives the plunger to slide axially closer to the one-way valve to close the oil inlet and pushes the oil in the oil storage channel to push the one-way valve, allowing the oil in the oil storage channel to flow into the oil outlet channel. Attached Figure Description

[0017] Figure 1 This is a perspective view of the single-point lubrication pump of this utility model.

[0018] Figure 2 This is a perspective view of the single-point lubrication pump of this utility model when it is at another angle.

[0019] Figure 3 This is a perspective view of the single-point lubrication pump of this utility model at another angle after the protective cover is hidden.

[0020] Figure 4 yes Figure 3 Side view of the structure shown.

[0021] Figure 5 yes Figure 4 The structure shown is a cross-sectional view obtained after being cut along line segment AA.

[0022] Figure 6 yes Figure 5 Enlarged view of the structure at point B.

[0023] Figure 7 This is a perspective view of the single-point lubrication pump of this utility model after the protective cover, protective cap, pressure spring, oil tank and part of the pump body are hidden and separated from the sealing ring. Detailed Implementation

[0024] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] This utility model discloses a single-point lubrication pump 100, which is used to output lubricating oil to a specific lubrication point and provide oil lubrication for a specific lubrication position. The oil can be thick oil (such as grease) or thin oil.

[0026] like Figures 1 to 7 As shown, the single-point lubrication pump 100 provided by this utility model includes a pump body 10, a drive device 20, an oil pumping device 30, and an oil reservoir 40. The pump body 10 has an installation cavity, an oil outlet channel 11, and an inclined oil inlet channel 12. An open connector mounting port 13 is provided on the top of the pump body 10. The oil pumping device 30 includes a plunger 31, a sliding sleeve 32, and a one-way valve 33. The sliding sleeve 32 and the one-way valve 33 are each installed in the installation cavity and are arranged to the left and right respectively. The sliding sleeve 32 has an oil storage channel 321, and the sliding sleeve 32 has an oil inlet 322 connected to the oil storage channel 321. One end of the oil inlet channel 12 is connected to the connector mounting port 13, and the other end of the oil inlet channel 12 is connected to the oil inlet 322. One end of the oil outlet channel 11 is connected to the one-way valve 33. The plunger 31 is axially slidably mounted in the oil storage channel 321. The drive unit 20 is mounted on the pump body 10, and the plunger 31 is mounted on the output end of the drive unit 20. A sealing ring 50 is installed in the connector mounting port 13, and a metal structure 51 is embedded in the sealing ring 50. The oil tank 40 has an oil tank connector 41, which is installed in the connector mounting port 13 and presses the sealing ring 50 downward.

[0027] In this invention, a metal structure 51 is embedded in the sealing ring 50, which ensures the structural rigidity and strength of the sealing ring 50 without thickening it. When the oil tank connector 41 presses down on the sealing ring 50, it can seal the oil tank connector 41, ensuring the sealing effect of the oil tank connector 41. The driving device 20 drives the plunger 31 to slide axially away from the one-way valve 33 to open the oil inlet 322 and close the one-way valve 33. The oil in the oil tank 40 flows into the oil storage channel 321 through the oil inlet channel 12. The driving device 20 drives the plunger 31 to slide axially closer to the one-way valve 33 to close the oil inlet 322 and pushes the oil in the oil storage channel 321 to push the one-way valve 33. The oil in the oil storage channel 321 flows into the oil outlet channel 11.

[0028] Specifically, the sealing ring 50 also includes an upper adhesive body 52 and a lower adhesive body 53. The upper adhesive body 52, the metal structure 51, and the lower adhesive body 53 are stacked from top to bottom and vulcanized together, and the three are tightly connected together. The upper adhesive body 52, the lower adhesive body 53, and the metal structure 51 are arranged in a ring shape, and the upper adhesive body 52, the lower adhesive body 53, and the metal structure 51 form an oil passage hole 54 for oil to flow through.

[0029] like Figures 1 to 7 As shown, a groove 14 is provided at the bottom of the connector mounting port 13, and the oil inlet channel 12 communicates with the groove 14. The edge of the groove 14 has a notch structure 15 facing the oil inlet channel 12, and part of the sealing ring 50 is suspended in the notch structure 15. Because the oil inlet channel 12 is inclined, a groove 14 is provided at the bottom of the connector mounting port 13 to facilitate machining the oil inlet channel 12 and to facilitate tool entry. In addition, to ensure that the inclined oil inlet channel 12 can be machined as required, a notch structure 15 facing the oil inlet channel 12 is provided at the edge of the groove 14.

[0030] like Figures 1 to 7 As shown, the one-way valve 33 includes a valve body 331, a valve seat 332, a mounting head 333, and an elastic element 334. The valve seat 332 has a valve cavity 3321, and one end of the valve seat 332 has an oil passage 3322 opening into the oil storage channel 321. The valve body 331 has a plug structure 3311, and the mounting head 333 mounts the end of the valve seat 332 away from the oil passage 3322 and seals that end. The elastic element 334 is located between the valve body 331 and the mounting head 333. The elastic element 334 constantly has the tendency to push the mounting head 333 of the valve body 331, causing the plug structure 3311 to insert and close the oil passage 3322. The side wall of the valve seat 332 has an oil drain port 3323, and the oil outlet channel 11 communicates with the oil drain port 3323. When the plunger 31 slides closer to the check valve 33, the oil storage space in the oil storage channel 321 decreases, the plunger 31 closes the oil inlet 322, the plunger 31 compresses the oil, the oil pressure increases, pushing open the plug structure 3311, thereby opening the oil outlet 3322, and the oil flows into the valve chamber 3321, then through the drain port 3323, and finally into the outlet channel 11. When the plunger 31 slides away from the check valve 33, the oil storage space in the oil storage channel 321 increases, generating negative pressure, the plunger 31 opens the oil inlet 322, the oil in the inlet channel 12 flows through the inlet 322, and then into the oil storage channel 321. Pushed by the elastic element 334, the plug structure 3311 inserts into the oil outlet 3322, preventing the oil in the oil storage channel 321 from flowing into the valve chamber 3321, at which point the oil storage channel 321 retains oil. By repeating this process continuously, oil can be stored and extracted indefinitely.

[0031] like Figures 1 to 7As shown, the drive device 20 of this utility model includes a drive motor 21, a worm 22, a worm wheel 23, and a crank 24. The drive motor 21 is mounted on the pump body 10, the worm 22 is mounted on the output end of the drive motor 21, the worm wheel 23 is pivotally mounted on the pump body 10, and the worm wheel 23 meshes with the worm 22 for transmission. One end of the crank 24 is hinged to the worm wheel 23, and the second end of the crank 24 is hinged to the plunger 31.

[0032] like Figures 1 to 7 As shown, this utility model also includes a power supply 60. The power supply 60 is located on one side of the drive motor 21 and is electrically connected to the drive motor 21. The single-point lubrication pump 100 of this utility model can be installed independently at a specific location requiring oil lubrication to achieve single-point lubrication. Power is supplied to the drive motor 21 via the built-in power supply 60, ensuring normal grease output even in the absence of power or air supply, guaranteeing normal oil supply to the location requiring lubrication. Preferably, in the embodiment provided by this utility model, the power supply 60 is composed of multiple dry cell batteries, for example, a combination of three dry cell batteries. Of course, the power supply 60 can also be selected as a rechargeable battery.

[0033] like Figures 1 to 7 As shown, the sliding sleeve 32 has a cylindrical structure, and the valve seat 332 is tightly fitted to one end of the sliding sleeve 32.

[0034] like Figures 1 to 7 As shown, an oil outlet connector 16 is installed at one end of the oil outlet channel 11 to facilitate oil output.

[0035] like Figures 1 to 6 As shown, the single-point lubrication pump 100 of this utility model also includes a protective cover 70. The protective cover 70 is installed on the pump body 10 and covers the drive device 20, the pump body 10 and the power supply 60 to protect these structures.

[0036] like Figures 1 to 6 As shown, the single-point lubrication pump 100 of this utility model also includes a protective cover 80. The protective cover 80 is installed on the pump body 10, and the protective cover 80 and the protective cover 70 are arranged one above the other. The oil tank 40 is located inside the protective cover 80, and a push spring 81 is provided inside the protective cover 80. The push spring 81 constantly pushes the oil tank 40, so that the oil in the oil tank 40 flows to the oil inlet channel 12.

[0037] The working principle of the single-point lubrication pump 100 of this utility model is briefly explained below: The drive motor 21 drives the worm gear 22 to rotate, which in turn drives the worm wheel 23 to rotate, and consequently drives the crank 24 to swing. First, the crank 24 drives the plunger 31 to slide away from the one-way valve 33, and the space of the oil storage channel 321 continuously increases. When the plunger 31 passes the oil inlet 322 to the left, the oil in the oil tank 40 flows into the oil inlet channel 12 and then into the oil storage channel 321. At this time, the one-way valve 33 is in the closed state. Next, the crank 24 drives the plunger 31 to slide closer to the one-way valve 33, and the space of the oil storage channel 321 continuously decreases. The plunger 31 compresses the oil, and the oil pushes open the plug structure 3311. The oil flows into the valve chamber 3321 and then through the oil outlet 3323, and then flows out into the oil outlet channel 11, realizing oil pumping. This cycle continues, and oil can be pumped as needed.

[0038] It is worth noting that the single-point lubrication pump 100 of this utility model performs oiling according to a certain cycle, and the oiling is intermittent.

[0039] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A single-point lubrication pump, characterized in that: The pump body includes a pump body, a drive unit, an oil pumping device, and an oil tank. The pump body has an installation cavity, an oil outlet channel, and an inclined oil inlet channel. An open connector mounting port is located at the top of the pump body. The oil pumping device includes a plunger, a sliding sleeve, and a check valve. The sliding sleeve and the check valve are each installed in the installation cavity, arranged to the left and right respectively. The sliding sleeve has an oil storage channel and an oil inlet communicating with the oil storage channel. One end of the oil inlet channel communicates with the connector mounting port, and the other end communicates with the oil inlet port. One end of the oil outlet channel communicates with the check valve. The plunger is axially slidably installed in the oil storage channel. The drive unit is installed in the... The pump body has a plunger mounted at the output end of the drive device. A sealing ring with a metal structure embedded in the connector mounting port is installed in the connector mounting port. The oil tank has an oil tank connector, which is installed in the connector mounting port and presses the sealing ring downwards. The drive device drives the plunger to slide axially away from the one-way valve to open the oil inlet and close the one-way valve. The oil in the oil tank flows into the oil storage channel through the oil inlet channel. The drive device drives the plunger to slide axially closer to the one-way valve to close the oil inlet and pushes the oil in the oil storage channel to open the one-way valve. The oil in the oil storage channel flows into the oil outlet channel.

2. The single-point lubrication pump according to claim 1, characterized in that, The sealing ring also includes an upper adhesive body and a lower adhesive body. The upper adhesive body, the metal structure, and the lower adhesive body are stacked from top to bottom and vulcanized together. The upper adhesive body, the lower adhesive body, and the metal structure are arranged in a ring shape, and the three of them form an oil passage hole.

3. The single-point lubrication pump according to claim 1, characterized in that, The bottom of the connector mounting port is provided with a groove, the oil inlet channel is connected to the groove, and the edge of the groove is provided with a notch structure facing the oil inlet channel. Part of the sealing ring structure is suspended in the notch structure.

4. The single-point lubrication pump according to claim 1, characterized in that, The one-way valve includes a valve body, a valve seat, a mounting head, and an elastic element. The valve seat has a valve cavity, and one end of the valve seat has an oil passage opening into the oil storage channel. The valve body has a plug structure. The mounting head is installed on the end of the valve seat away from the oil passage and seals that end. The elastic element is located between the valve body and the mounting head. The elastic element always has the tendency to push the valve body away from the mounting head, causing the plug structure to be inserted and close the oil passage. The side wall of the valve seat has an oil drain port, and the oil outlet channel communicates with the oil drain port.

5. The single-point lubrication pump according to claim 1, characterized in that, The drive device includes a drive motor, a worm, a worm wheel, and a crank. The drive motor is mounted on the pump body, the worm is mounted on the output end of the drive motor, the worm wheel is pivotally mounted on the pump body, and the worm wheel meshes with the worm for transmission. The first end of the crank is hinged to the worm wheel, and the second end of the crank is hinged to the plunger.

6. The single-point lubrication pump according to claim 5, characterized in that, It also includes a power supply, which is located on one side of the drive motor and is electrically connected to the drive motor.

7. The single-point lubrication pump according to claim 4, characterized in that, The sliding sleeve has a cylindrical structure, and the valve seat is tightly fitted to one end of the sliding sleeve.

8. The single-point lubrication pump according to claim 1, characterized in that, An oil outlet connector is installed at one end of the oil outlet channel.

9. The single-point lubrication pump according to claim 6, characterized in that, It also includes a protective cover, which is installed on the pump body and covers the drive unit, the pump body and the power supply.

10. The single-point lubrication pump according to claim 9, characterized in that, It also includes a protective cover, which is installed on the pump body. The protective cover and the protective shield are arranged one above the other. The oil tank is located inside the protective cover. A push spring is installed inside the protective cover. The push spring constantly pushes the oil tank, causing the oil in the oil tank to flow to the oil inlet channel.

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