Medium-pressure grease pump

Abstract

The utility model relates to the technical field of grease pumps, in particular to a medium-pressure grease pump which comprises a pump body, the pump body is provided with a grease barrel, a floating platform is arranged in the grease barrel in a sliding mode, a reed switch is arranged on the outer side wall of the grease barrel, and the grease barrel is provided with a fixing assembly used for fixing the reed switch. The floating platform is provided with an opening and closing assembly used for opening and closing the reed switch. The method and the device have the effect of improving the timeliness of grease supplement.

Description

Technical Field

[0001] This application relates to the technical field of grease pumps, and particularly to a medium-pressure grease pump. Background Art

[0002] A grease pump is a device used in a lubrication system. It is driven by a DC power supply or an AC power supply to deliver grease to each lubrication point, and is applicable to various fields such as plastic machinery equipment and heavy industrial machinery.

[0003] The utility model patent with the authorization announcement number CN213840438U discloses an electric grease pump, which includes an oil tank, a pump body, a motor, an eccentric wheel and an oil outlet assembly. The oil tank is installed above the pump body and is interconnected. The motor is installed in the lower receiving cavity. The eccentric wheel is sleeved on the motor shaft. An installation hole is provided on the side wall of the upper receiving cavity. The pump body has a partition part, and the partition part includes a first partition part, a second partition part and a slide part. The first partition part is higher than the second partition part, and the first partition part and the second partition part are also horizontally staggered. The two ends of the first partition part are arranged opposite to the two ends of the second partition part. The slide part is respectively connected to the corresponding ends of the first partition part and the second partition part. A heating sheet is provided on the lower surface of the first partition part. Since the first partition part is relatively high, heat will not be transferred to the motor in the lower receiving cavity to affect the operation of the motor. It has the advantages of improving the fluidity of the grease without affecting the normal operation of other parts.

[0004] However, when the grease in the oil tank is used up, the staff often cannot find out in time, resulting in the electric grease pump being unable to supply grease to the mechanical equipment normally, and ultimately may cause the mechanical equipment to overheat and be damaged. Utility Model Content

[0005] In order to improve the timeliness of grease replenishment, this application provides a medium-pressure grease pump.

[0006] A medium-pressure grease pump provided by this application adopts the following technical solution:

[0007] A medium-pressure grease pump includes a pump body. An oil cylinder is arranged on the pump body. A floating platform is slidably arranged in the oil cylinder. A reed switch is arranged on the outer side wall of the oil cylinder. The oil cylinder is provided with a fixing component for fixing the reed switch. The floating platform is provided with an opening and closing component for opening and closing the reed switch.

[0008] By adopting the above technical solution, the oil cylinder is used to store grease, and the float floats on the liquid surface of the grease. When the pump body pumps out the grease in the oil cylinder, the grease liquid level drops, and the float drops with the grease liquid level. When the grease drops to the set minimum liquid level, the float starts the reed switch through the opening and closing component. At this time, the reed switch is closed, and the machine equipment determines the oil storage amount by collecting the opening and closing status of the reed switch, which is conducive to improving the timeliness of grease replenishment.

[0009] Optionally, the opening and closing component includes a magnetic ring, which is magnetically induced by the reed switch, a side wall of the floating platform is provided with a ring groove, the magnetic ring is sleeved in the ring groove, and the floating platform is provided with a fixing part for fixing the magnetic ring.

[0010] By adopting the above technical solution, when the floating platform descends, the floating platform drives the magnetic ring to descend, and when the magnetic ring descends close to the reed switch, the reed switch is closed by the magnetic induction of the magnetic ring, which is beneficial to improve the stability of detecting the lowest liquid level of grease in the oil cylinder through the reed switch.

[0011] Optionally, the fixing member is a first bolt, a supporting plate is provided on the bottom surface of the floating platform, and the first bolt passes through the supporting plate and is threadedly connected to the floating platform.

[0012] By adopting the above technical solution, when the magnetic ring needs to be fixed, the magnetic ring is first placed in the ring groove, and then the support plate is attached to the magnetic ring and the bottom surface of the floating platform, and finally the first bolt is threadedly tightened. At this time, the support plate supports the magnetic ring, and the magnetic ring is tightly fixed in the ring groove, which is beneficial to improve the stability of the connection between the magnetic ring and the floating platform.

[0013] Optionally, the fixing assembly includes a fixing seat, the reed switch is arranged on the top surface of the fixing seat, the side wall of the oil cylinder is provided with a fixing platform, the fixing seat is arranged on the top surface of the fixing platform, and the fixing platform is provided with a connecting piece for fixing the fixing seat.

[0014] By adopting the above technical solution, when the reed switch needs to be fixed, the fixing base is first placed on the fixing platform, and then the fixing base is fixed to the fixing platform through the connecting piece. At this time, the reed switch is located on one side of the oil cylinder, and the reed switch is flush with the set minimum grease liquid level, which is beneficial to improve the stability of detecting the minimum grease liquid level in the oil cylinder through the reed switch.

[0015] Optionally, the connecting member is a second bolt, which passes through the fixing seat and is threadedly connected to the fixing platform.

[0016] By adopting the above technical solution, when the second bolt is tightened, the fixing seat is fixed to the top surface of the fixing platform, which is beneficial to improving the detachability of the reed switch.

[0017] Optionally, reinforcing ribs are provided between the fixed platform and the side wall of the oil cylinder.

[0018] By adopting the above technical solution, under the action of the reinforcing ribs, it is beneficial to improve the strength of the fixed platform and the stability of the fixed platform for supporting the reed switch.

[0019] Optionally, a sealing groove is formed in the side wall of the floating platform, and a sealing ring is sleeved on the floating platform based on the sealing groove.

[0020] By adopting the above technical solution, the sealing ring is used to improve the sealing performance between the floating platform and the inner wall of the oil cylinder.

[0021] Optionally, a spring is arranged in the oil cylinder. One end of the spring is connected to the top surface of the floating platform, and the other end of the spring is connected to the inner top wall of the oil cylinder.

[0022] By adopting the above technical solution, when replenishing grease into the oil cylinder, the grease drives the floating platform to rise. At this time, the floating platform compresses the spring. When the pump body pumps out the grease, the spring releases elastic force and drives the floating platform to descend, so that the floating platform always presses against the liquid level of the grease, which is beneficial to improving the stability of the floating platform rising and falling with the liquid level of the grease.

[0023] In summary, the present application includes the following beneficial technical effects:

[0024] The oil cylinder is used to store grease, and the floating platform floats on the liquid level of the grease. When the pump body pumps out the grease in the oil cylinder, the liquid level of the grease drops, and the floating platform drops with the liquid level of the grease. When the grease drops to the set lowest liquid level, the floating platform activates the reed switch through the opening and closing assembly. At this time, the reed switch closes, and the machine equipment judges the oil storage amount of the grease by collecting the opening and closing state of the reed switch, which is beneficial to improving the timeliness of grease replenishment. Description of the Drawings

[0025] Figure 1 is the overall structural schematic diagram of the medium-pressure grease pump of the present application;

[0026] Figure 2 is the schematic diagram of the connection relationship between the floating platform and the spring of the present application;

[0027] Figure 3 is the structural schematic diagram of the fixing component of the present application.

[0028] Description of the reference numerals: 1. Pump body; 2. Floating platform; 3. Reed switch; 4. Magnetic ring; 5. Ring groove; 6. First bolt; 7. Support piece; 8. Sealing groove; 9. Sealing ring; 10. Spring; 11. Fixed seat; 12. Fixed platform; 13. Second bolt; 14. Reinforcing rib; 15. Oil cylinder. Detailed Embodiment

[0029] The following will further elaborate on this application in conjunction with the attached drawings. Figures 1-3 The following will further elaborate on this application in conjunction with the attached drawings.

[0030] Embodiment:

[0031] Refer to Figure 1 and Figure 2 A medium-pressure grease pump includes a pump body 1. In this embodiment, the pump body 1 is a grease pump. An oil cylinder 15 is fixedly installed on the pump body 1, and the oil cylinder 15 is used to store grease. A floating platform 2 is slidably installed in the oil cylinder 15. The floating platform 2 is cylindrical, and the top surface of the floating platform 2 is concave. A reed switch 3 is installed on the outer side wall of the oil cylinder 15. In the art, the reed switch 3 is an electrical switch operated by an applied magnetic field. When there is no external magnetic field, the reed switch 3 is in an open state. The oil cylinder 15 is equipped with a fixing component, and the fixing component is used to fix the reed switch 3. The floating platform 2 is equipped with an opening and closing component, and the opening and closing component is used to open and close the reed switch 3.

[0032] When the amount of grease in the oil cylinder 15 is sufficient, the floating platform 2 presses on the grease liquid surface, and the floating platform 2 is located above the reed switch 3. When the amount of grease in the oil cylinder 15 drops to the set lowest liquid level, the floating platform 2 drops with the drop of the grease liquid surface, and the floating platform 2 closes the reed switch 3 through the opening and closing component. The machine equipment judges the oil storage amount of the grease by collecting the opening and closing state of the reed switch 3.

[0033] Specifically, refer to Figure 1 and Figure 2 The opening and closing component includes a magnetic ring 4. The magnetic ring 4 applies an external magnetic field, and the magnetic ring 4 has magnetic induction with the reed switch 3. A ring groove 5 is formed on the side wall of the floating platform 2 near the bottom, and the magnetic ring 4 is sleeved on the floating platform 2 through the ring groove 5.

[0034] Refer to Figure 2 To facilitate fixing the magnetic ring 4 to the side wall of the floating platform 2, the floating platform 2 is also equipped with a fixing part, and the fixing part is a first bolt 6. A support piece 7 is installed on the bottom surface of the floating platform 2. The number of support pieces 7 is two. At the same time, both support pieces 7 support the bottom surface of the magnetic ring 4. The number of first bolts 6 corresponds to the number of support pieces 7. The two first bolts 6 respectively penetrate through the two support pieces 7 and are threadedly connected to the bottom surface of the floating platform 2.

[0035] When it is necessary to fix the magnetic ring 4, first sleeve the magnetic ring 4 on the ring groove 5, then abut the support piece 7 against the bottom surfaces of the floating platform 2 and the magnetic ring 4, and finally tighten the first bolt 6. At this time, the first bolt 6 fixes the support piece 7 to the bottom surface of the floating platform 2. Under the restriction of the support piece 7, the magnetic ring 4 is fixed on the ring groove 5.

[0036] When the floating platform 2 descends with the grease liquid level, the floating platform 2 drives the magnetic ring 4 to descend. When the magnetic ring 4 approaches the reed switch 3, the magnetic field of the magnetic ring 4 drives the reed switch 3 to close, and this is the lowest grease liquid level set for the oil cylinder 15 at this time.

[0037] It should be noted that, referring to Figure 2 , a sealing groove 8 is provided on the side wall of the floating platform 2, and a sealing ring 9 is sleeved on the floating platform 2 based on the sealing groove 8. The sealing ring 9 is beneficial to improving the sealing performance between the floating platform 2 and the inner wall of the oil cylinder 15, and reducing the overflow of grease above the floating platform 2.

[0038] Referring to Figure 2 , to improve the stability of the floating platform 2 rising and falling with the grease liquid level, a spring 10 is installed in the oil cylinder 15. One end of the spring 10 is fixedly connected to the top surface of the floating platform 2, and the other end of the spring 10 is fixedly connected to the inner top wall of the oil cylinder 15.

[0039] When the floating platform 2 rises with the grease liquid level, the floating platform 2 compresses the spring 10. When the pump body 1 pumps out the grease, the spring 10 releases elastic force and drives the floating platform 2 to always press against the grease liquid level.

[0040] Specifically, referring to Figure 3 , the fixing component includes a fixing seat 11. The fixing seat 11 is in a cuboid shape, and the reed switch 3 is fixedly inserted into the top surface of the fixing seat 11. A fixing platform 12 is fixedly connected to the side wall of the oil cylinder 15, and the fixing seat 11 is placed on the top surface of the fixing platform 12.

[0041] Referring to Figure 3 , to facilitate fixing the fixing seat 11 on the top surface of the fixing platform 12, a connecting piece is installed on the fixing platform 12. The connecting piece is a second bolt 13, and the number of the second bolts 13 is two. The two second bolts 13 are symmetrically installed on both sides of the fixing seat 11 respectively, and the two second bolts 13 respectively penetrate through the fixing seat 11 and are threadedly connected to the fixing platform 12.

[0042] When it is necessary to fix the reed switch 3 on one side of the oil cylinder 15, first fixedly insert the reed into the top surface of the fixing seat 11. Then install the fixing seat 11 on the top surface of the fixing platform 12, and then threadedly tighten the two second bolts 13 respectively. At this time, the fixing seat 11 is fixed on the top surface of the fixing platform 12.

[0043] It is worth noting that, referring to Figure 3 , to facilitate enhancing the overall strength of the fixing platform 12, a reinforcing rib 14 is fixedly connected between the fixing platform 12 and the side wall of the oil cylinder 15. Under the action of the reinforcing rib 14, it is beneficial to improve the self-strength of the fixing platform 12 and better support the reed switch 3.

[0044] In addition, the oil cylinder 15 in this embodiment is made of transparent plastic material, which is beneficial to more intuitively observing the usage situation of the grease.

[0045] Working principle of a medium-pressure grease pump:

[0046] When replenishing grease into the pump body 1, the grease drives the floating platform 2 to rise, and the floating platform 2 further compresses the spring 10.

[0047] When the pump body 1 pumps out grease, the spring 10 of the floating platform 2 releases its elastic force and drives the floating platform 2 to always press against the grease liquid level. When the floating platform 2 descends, the floating platform 2 drives the magnetic ring 4 to descend. Also, when the magnetic ring 4 approaches the reed switch 3, the magnetic field of the magnetic ring 4 drives the reed switch 3 to close, and at this time, it is the lowest grease liquid level set for the oil cylinder 15. The machine equipment judges the oil storage amount of the grease by collecting the opening and closing states of the reed switch 3, so as to replenish the grease into the oil cylinder 15 in a timely manner.

[0048] In summary, the staff judges the oil storage amount of the grease by observing the opening and closing states of the reed switch 3, which is conducive to improving the timeliness of grease replenishment.

[0049] The above are all preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A medium-pressure grease pump, comprising a pump body (1), characterized in that: The pump body (1) is provided with an oil cylinder (15), a floating platform (2) is slidably provided inside the oil cylinder (15), a reed switch (3) is provided on the outer wall of the oil cylinder (15), the oil cylinder (15) is provided with a fixing component for fixing the reed switch (3), and the floating platform (2) is provided with an opening and closing component for opening and closing the reed switch (3); The opening and closing assembly comprises a magnetic ring (4), the magnetic ring (4) and the reed switch (3) are magnetically induced, a ring groove (5) is provided on the side wall of the floating platform (2), the magnetic ring (4) is sleeved in the ring groove (5), and the floating platform (2) is provided with a fixing part for fixing the magnetic ring (4); The fixing assembly comprises a fixing seat (11), the reed switch (3) is arranged on the top surface of the fixing seat (11), the side wall of the oil cylinder (15) is provided with a fixing platform (12), the fixing seat (11) is arranged on the top surface of the fixing platform (12), and the fixing platform (12) is provided with a connecting piece for fixing the fixing seat (11).

2. A medium-pressure grease pump according to claim 1, characterized in that: The fixing member is a first bolt (6), the bottom surface of the floating platform (2) is provided with a supporting sheet (7), the first bolt (6) passes through the supporting sheet (7) and is threadedly connected to the floating platform (2).

3. A medium-pressure grease pump according to claim 1, characterized in that: The connecting member is a second bolt (13), and the second bolt (13) passes through the fixing seat (11) and is threadedly connected to the fixing platform (12).

4. A medium-pressure grease pump according to claim 1, characterized in that: A reinforcing rib (14) is provided between the fixing platform (12) and the side wall of the oil cylinder (15).

5. A medium-pressure grease pump according to claim 1, characterized in that: A sealing groove (8) is provided on the side wall of the floating platform (2), and a sealing ring (9) is sleeved on the floating platform (2) based on the sealing groove (8).

6. A medium-pressure grease pump according to claim 1, characterized in that: A spring (10) is arranged in the oil cylinder (15), one end of the spring (10) is connected to the top surface of the floating platform (2), and the other end of the spring (10) is connected to the top wall inside the oil cylinder (15).

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