CN215174037U

CN215174037U - Grease lubricating pump

Info

Publication number: CN215174037U
Application number: CN202023298768.1U
Authority: CN
Inventors: 梅立文; 李�根; 姜友爱; 焦立军; 冯继冲; 邓帅奇
Original assignee: Zhengzhou Zhongcheng Lubrication Technology Co ltd
Current assignee: Zhengzhou Zhongcheng Lubrication Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-14
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a grease lubricating pump, which comprises an oil tank and a pump body, wherein an oil pumping channel is arranged in the pump body, an exhaust cavity is arranged on the pump body and is communicated with the oil pumping channel, and a pump body exhaust hole communicated with the oil tank is arranged on the side wall; the manual exhaust valve comprises an exhaust valve core movably assembled in the exhaust cavity; the movable stroke of the exhaust valve core is provided with an air-closing position for blocking the exhaust hole of the pump body and the oil pumping channel and an exhaust position for communicating the oil pumping channel and the exhaust hole of the pump body; one end of the exhaust valve core is an operation end which extends out of the pump body for operation. Compare with present grease lubricant pump, the utility model discloses a grease lubricant pump is through discharging gas into the oil tank, can not have the grease to spill over, and the excessive workman's work load that causes of grease is big, the technical problem that work efficiency is low when having solved present grease lubricant pump outwards to exhaust.

Description

Grease lubricating pump

Technical Field

The utility model relates to a grease lubricant pump.

Background

The grease lubricating pump comprises a pump head and an oil tank, grease is stored in the oil tank, and the pump head pressurizes the grease and pumps the grease lubricating pump to a target position. Because the flow shape of the grease in the oil tank is poor, bubbles often exist in the grease, and after the grease in the oil tank is used up, more bubbles also exist after refueling. To the pump head that adopts the gear pump, the clearance between the gear can not be filled up by the grease, causes the gear pump pressure boost to become invalid, also can't follow the oil absorption entering gear in the oil tank, causes the gear idle running. The conventional mode is to set a manual exhaust valve, for example, chinese patent with publication number CN2769662Y discloses a miniature electric grease lubrication pump, the lubrication pump includes a motor, a pump body and a plunger, an oil discharge valve, a pressure regulating valve and a manual exhaust valve are disposed on the pump body, the pump body can be exhausted through the manual exhaust valve, wherein a part of the lubrication pump located at the lower side of an oil storage cylinder forms a pump head of the lubrication pump, the current manual exhaust valve generally discharges air to the outside of the pump head when discharging air, and part of grease overflows when discharging air is finished, and the overflowed grease needs to be cleaned, thereby increasing the workload of workers and reducing the working efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a grease lubricant pump for the excessive workman's work load that causes of grease is big, the technical problem that work efficiency is low when solving present grease lubricant pump outwards to exhaust.

The utility model discloses a grease lubricating pump adopts following technical scheme:

grease lubricant pump, including oil tank, the pump body, be provided with the pump oil passageway in the pump body, dispose on the pump body:

the exhaust cavity is communicated with the oil pumping channel, and a pump body exhaust hole communicated with the oil tank is formed in the side wall of the exhaust cavity;

the manual exhaust valve comprises an exhaust valve core movably assembled in the exhaust cavity;

the movable stroke of the exhaust valve core is provided with an air-closing position for blocking the exhaust hole of the pump body and the oil pumping channel and an exhaust position for communicating the oil pumping channel and the exhaust hole of the pump body;

one end of the exhaust valve core is an operation end which extends out of the pump body for operation.

Has the advantages that: the manual exhaust valve is operated to move to the exhaust position through the manual exhaust valve, so that the oil pumping channel is communicated with the exhaust hole of the pump body, the oil pumping channel in the pump body is communicated with the oil tank, gas in the oil pumping channel is exhausted to the oil tank, the manual exhaust valve is operated to move to the air-closed position through the operation end, the exhaust hole of the pump body is blocked from the oil pumping channel, and the oil pumping channel pumps grease normally. Compare with present grease lubricant pump, the utility model discloses a grease lubricant pump is through discharging gas into the oil tank, can not have the grease to spill over, and the excessive workman's work load that causes of grease is big, the technical problem that work efficiency is low when having solved present grease lubricant pump outwards to exhaust.

Furthermore, the manual exhaust valve comprises an elastic piece, the exhaust valve core is slidably assembled in the exhaust cavity, and the elastic piece exerts elastic force on the exhaust valve core to keep the exhaust valve core at the air closing position. The exhaust valve core can slide to the air-closing position under the action of the elastic piece after sliding to the exhaust position and exhausting, so that the manual exhaust valve can be operated conveniently.

Furthermore, the elastic element is used for applying elastic force to the exhaust valve core to enable the exhaust valve core to move outwards so as to keep the exhaust valve core at the air-closing position, and the exhaust valve core can be moved from the air-closing position to the air-discharging position by pushing the operation end of the exhaust valve core. The air exhaust valve core is pushed by the pushing device to apply force conveniently, and the operation is convenient.

Furthermore, the exhaust cavity is provided with an exhaust valve core mounting opening for mounting the exhaust valve core, the exhaust valve core mounting opening is provided with a stopping piece for limiting the movement of the exhaust valve core to the outside of the pump body, and the exhaust valve core is in stop fit with the stopping piece in the moving direction of the exhaust valve core under the action of the elastic piece when being at the air closing position. The exhaust valve core mounting port facilitates mounting of the exhaust valve core.

Furthermore, the stop piece is a stop cap, and the exhaust valve core penetrates through the stop cap and extends out of the pump body. After the exhaust valve core penetrates through the blocking cap, the blocking effect of the blocking cap on the exhaust valve core is better.

Furthermore, the blocking cap is in threaded connection with the mounting opening of the exhaust valve core. Simple structure and convenient installation.

Furthermore, the elastic part is a spring sleeved on the exhaust valve core, the exhaust cavity comprises a spring accommodating section and an exhaust section positioned on one side of the spring accommodating section, an oil tank communicating hole communicated with an oil tank for oil to enter and exit is formed in the side wall of the spring accommodating section, the pump body exhaust hole is formed in the side wall of the exhaust section, a step surface is formed at the joint of the exhaust section and the spring accommodating section, and one end of the spring abuts against the step surface. The oil tank communicating hole avoids the change of the volume of the spring accommodating cavity to form pressure difference, and the operation of the exhaust valve core is more comfortable.

Furthermore, the part of the exhaust valve core sleeved with the spring is a spring installation section, the exhaust valve core comprises a sealing section, the sealing section is located between the spring installation section and the operation end, and one end of the spring is propped against the end face of the sealing section. Compact structure, and the sealed section can further reduce the leakage of grease.

Furthermore, the exhaust valve core comprises an exhaust control section extending into the exhaust cavity, and when the exhaust valve core is in the air-closed position, the peripheral surface of the exhaust control section plugs the exhaust hole of the pump body to block the exhaust hole of the pump body from the oil pumping channel. The structure of plugging the exhaust hole of the pump body by the peripheral surface of the exhaust control section is simple.

Furthermore, the exhaust control section is provided with a blind hole extending along the moving direction of the exhaust valve core, a valve core exhaust hole is arranged on the hole wall of the blind hole, a valve core exhaust ring groove communicated with the valve core exhaust hole is arranged on the periphery of the exhaust valve core, the valve core exhaust ring groove is communicated with the pump body exhaust hole when the exhaust valve core is in the exhaust position, and the valve core exhaust ring groove is used for plugging the notch by the side wall of the exhaust cavity when the exhaust valve core is in the gas-closed position.

Drawings

FIG. 1 is a sectional view of a grease lubrication pump according to embodiment 1 of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a cross-sectional view of another perspective of a manual purge valve according to embodiment 1 of the present invention;

in the figure: 1. an oil tank; 2. a pump body; 21. an oil pumping channel; 22. an exhaust chamber; 221. a pump body exhaust hole; 222. a spring receiving section; 223. an exhaust section; 224. an oil tank communication hole; 3. a gear pump; 4. a manual exhaust valve; 41. an exhaust valve core; 411. an operation end; 412. an exhaust control section; 413. a sealing section; 414. a spring mounting section; 415. blind holes; 416. a valve core vent hole; 417. a valve core exhaust ring groove; 42. a spring; 5. a blocking cap; 6. and (4) a pull ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships that are assumed to be merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The features and properties of the present invention are described in further detail below with reference to examples.

The utility model discloses embodiment 1 of grease lubrication pump:

as shown in fig. 1 to 3, the grease lubrication pump includes an oil tank 1 and a pump body 2, the pump body 2 is provided with a pump oil passage 21, the pump oil passage 21 is communicated with the oil tank 1, the pump body 2 is provided with a gear pump 3 for pumping out grease in the oil tank 1, and the gear pump 3 pumps out the grease through the pump oil passage 21 after pressurizing the grease. In other embodiments, the grease may be pumped by a plunger pump.

In order to discharge the air in the pump body 2 and avoid the failure of the gear pump 3, the pump body 2 is provided with an exhaust cavity 22 and a manual exhaust valve 4 arranged in the exhaust cavity 22, and the manual exhaust valve 4 comprises an exhaust valve core 41 movably assembled in the exhaust cavity 22 and a spring 42 sleeved on the exhaust valve core 41.

The exhaust chamber 22 is communicated with the oil pumping channel 21, a pump body exhaust hole 221 communicated with the oil tank 1 is formed in the side wall of the exhaust chamber 22, and the pump body exhaust hole 221 is used for exhausting gas in the exhaust chamber 22 into the oil tank 1. The movable stroke of the air exhaust valve core 41 is provided with an air closing position for closing the pump body air exhaust hole 221 to block the pump body air exhaust hole 221 and the pump oil channel 21, and an air exhaust position for opening the pump body air exhaust hole 221 to enable the pump oil channel 21 to be communicated with the pump body air exhaust hole 221 for air exhaust.

As shown in fig. 2, the exhaust cavity 22 has an exhaust valve core installation opening, the exhaust valve core installation opening is in threaded connection with a stop cap 5 for limiting the movement of the exhaust valve core 41 to the outside of the pump body 2, the exhaust valve core 41 passes through the stop cap 5 and then extends out of the pump body 2, one end of the exhaust valve core 41 is an operation end 411 extending out of the pump body 2, the other end of the exhaust valve core 41 extends into the pump body 2, and the exhaust valve core 41 includes an exhaust control section 412 located in the exhaust cavity 22. When the exhaust valve core 41 is in the air-closed position, the spring 42 stops the blocking cap 5 to match with the exhaust valve core 41 in the sliding direction, and the exhaust valve core 41 can move from the air-closed position to the air-discharge position by pushing the operation end 411 of the exhaust valve core 41. The stop cap in the above embodiments constitutes a stop member provided at the mounting port of the exhaust valve spool.

The exhaust valve core 41 further comprises a sealing section 413 and a spring installation section 414 which are positioned on the inner side of the blocking cap 5, one end of the spring 42 is propped against the side wall of the exhaust cavity 22, the other end of the spring is propped against the end face of the sealing section 413, the outer diameter of the sealing section 413 is larger than that of the spring installation section 414, a sealing ring groove is formed in the periphery of the sealing section 413, a sealing ring is arranged in the sealing ring groove, and the sealing section 413 is in sliding sealing fit with the exhaust cavity 22 through the sealing ring. One end of the sealing section 413 is matched with the stop cap 5 in a stop way, so that the exhaust valve core 41 is limited to be separated from the exhaust cavity 22. In this embodiment, the exhaust valve core 41 is moved by pushing the operation section of the exhaust valve core 41.

The exhaust cavity 22 comprises a spring accommodating section 222 and an exhaust section 223 positioned on one side of the spring accommodating section 222, a tank communication hole 224 communicated with the oil tank 1 for oil to enter and exit is formed in the side wall of the spring accommodating section 222, the circumferential size of the inner wall of the exhaust section 223 is smaller than that of the inner wall of the spring accommodating section 222, a step surface is formed at the joint of the exhaust section 223 and the spring accommodating section 222, and one end of the spring 42 is pressed against the step surface. The pump body discharge hole 221 is provided on a side wall of the discharge section 223. When the spring 42 is compressed, the volume of the spring accommodating section 222 is reduced, grease in the spring accommodating section 222 is discharged through the tank communication hole 224, when the spring 42 is reset, the volume of the spring accommodating section 222 is increased, the grease in the tank 1 enters the spring accommodating section 222, the influence of positive pressure or negative pressure formed in the spring accommodating section 222 on operation is reduced, and smooth movement of the exhaust valve core 41 is facilitated.

The exhaust control section 412 of the exhaust valve spool 41 is in sliding engagement with the inner wall of the exhaust section 223. The exhaust control section 412 of the exhaust valve core 41 is provided with a blind hole 415, the opening of the blind hole 415 is communicated with the pump oil channel 21, the blind hole 415 extends along the sliding direction of the exhaust valve core 41, the hole wall of the blind hole 415 is provided with a valve core exhaust hole 416, the periphery of the exhaust valve core 41 is provided with a valve core exhaust ring groove 417 communicated with the valve core exhaust hole 416, and the valve core exhaust ring groove 417 is communicated with the pump body exhaust hole 221 when the exhaust valve core 41 is at the exhaust position, so that the pump oil channel 21 is communicated with the pump body exhaust hole 221 through the blind hole 415, the valve core exhaust hole 416 and the valve core exhaust ring groove 417. The spool vent groove 417 closes the notch by the side wall of the vent chamber 22 when the vent spool 41 is in the closed position.

The utility model discloses a when needing to exhaust in the grease lubrication pump working process, through the operation end 411 of top push exhaust valve core 41, make exhaust valve core 41 slide to the pump body 2, when exhaust valve core 41 removes in the pump body 2, spring 42 is compressed, the grease that the spring held in section 222 passes through oil tank intercommunicating pore 224 and discharges, the grease in the exhaust control section 412 extrusion pump oil passageway 21 of exhaust valve core 41, case exhaust ring groove 417 communicates with each other with pump body exhaust hole 221, gas in the pump oil passageway 21 can pass through blind hole 415, case exhaust hole 416, case exhaust ring groove 417 and pump body exhaust hole 221 are discharged in the oil tank 1. The air bubbles in the oil tank 1 finally overflow under the action of external vibration.

After the exhaust is completed, the exhaust valve core 41 moves outwards under the action of the spring 42 until the valve core exhaust ring groove 417 on the exhaust valve core 41 is staggered with the pump body exhaust hole 221, the notch of the valve core exhaust ring groove 417 is sealed by the side wall of the exhaust cavity 22, the exhaust channel is closed, and the exhaust valve core 41 moves to the air-closed position. The grease in the pump oil channel 21 is recovered to the normal working output pressure value, and the gear set of the gear pump 3 is recovered to the normal working.

When the exhaust valve core 41 is unsmooth in resetting, the exhaust valve core 41 can be straightened to the air-closed position through the pull ring 6 connected with the operation section.

The utility model discloses embodiment 2 of grease lubrication pump, the difference in grease lubrication pump and above-mentioned embodiment 1 only lies in this embodiment: in this embodiment, the exhaust valve core is assembled on the pump body in a threaded manner, and the structure of the exhaust valve core is similar to that of a plug, so that the exhaust hole of the pump body is opened or closed by screwing the exhaust valve core, and the exhaust valve core is switched between the air-closed position and the air-exhaust position.

The utility model discloses embodiment 3 of grease lubrication pump, the difference in grease lubrication pump and above-mentioned embodiment 1 only lies in this embodiment: in the embodiment, the spring mounting section is positioned between the sealing section and the operation end, and the exhaust valve core is pulled to realize the switching between the air closing position and the air exhausting position. The space in which the spring mounting section is located does not need to be sealed from the outside at this time, and therefore the spring accommodating section does not need to be communicated with the oil tank.

The utility model discloses embodiment 4 of grease lubrication pump, the difference in grease lubrication pump and above-mentioned embodiment 1 only lies in this embodiment: in the embodiment, the exhaust valve core extends out of the pump body after being installed in the pump body, and a stop cap is not required to be arranged on the pump body. In other embodiments, the stop cap can be fixed on the pump body by screws; in other embodiments, the stopping member may also be a stopping ring, a snap spring, a baffle, or other stopping structures, and when the baffle is used for stopping, the baffle may be located on one side of the exhaust valve core, and the exhaust valve core does not pass through the baffle.

The utility model discloses embodiment 5 of grease lubrication pump, the difference in grease lubrication pump and above-mentioned embodiment 1 only lies in this embodiment: the exhaust control section of the exhaust valve core in the embodiment is of a solid structure, when the exhaust valve core moves to the exhaust position, the exhaust control section is located on one side of the exhaust hole of the pump body, and the exhaust hole of the pump body is communicated with the oil pumping channel.

The utility model discloses embodiment 6 of grease lubrication pump, the difference in grease lubrication pump and above-mentioned embodiment 1 only lies in this embodiment: in this embodiment, the exhaust chamber is through intercommunication mouth and pump oil passageway intercommunication, and in this embodiment, the exhaust valve core blocks pump body exhaust hole and pump oil passageway through the shutoff intercommunication mouth.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. Grease lubricant pump is provided with pump oil passageway (21) in the oil tank (1), the pump body (2) including, the pump body (2), its characterized in that disposes on the pump body (2):

the exhaust cavity (22) is communicated with the oil pumping channel (21), and a pump body exhaust hole (221) communicated with the oil tank (1) is formed in the side wall of the exhaust cavity;

the manual exhaust valve (4) comprises an exhaust valve core (41) movably assembled in the exhaust cavity (22);

the movable stroke of the exhaust valve core (41) is provided with a gas closing position for blocking the pump body exhaust hole (221) and the pump oil channel (21) and a gas exhaust position for communicating the pump oil channel (21) and the pump body exhaust hole (221);

one end of the exhaust valve core (41) is an operation end (411) which extends out of the pump body (2) for operation.

2. A grease lubrication pump according to claim 1, characterized in that the manual vent valve (4) comprises an elastic member, the vent spool (41) is slidably fitted in the vent chamber (22), and the elastic force exerted by the elastic member on the vent spool (41) holds the vent spool (41) in the closed position.

3. The grease-lubricated pump according to claim 2, wherein the elastic member is used for applying an elastic force to the vent spool (41) to move the vent spool (41) outward to keep the vent spool (41) in the air-closed position, and the vent spool (41) can be moved from the air-closed position to the air-discharge position by pushing the operating end (411) of the vent spool (41).

4. The grease-lubricated pump according to claim 3, wherein the exhaust cavity (22) is provided with an exhaust valve core mounting opening for mounting the exhaust valve core (41), the exhaust valve core mounting opening is provided with a stopper for limiting the movement of the exhaust valve core (41) to the outside of the pump body (2), and the exhaust valve core (41) is in stop fit with the stopper in the direction of movement of the exhaust valve core (41) under the action of the elastic member when in the air-closed position.

5. A grease lubrication pump according to claim 4, characterised in that the stop is a stop cap (5) and the outlet spool (41) protrudes through the stop cap (5) out of the pump body (2).

6. A grease lubrication pump according to claim 5, characterized in that the stop cap (5) is screwed at the exhaust spool mounting port.

7. The grease lubrication pump according to any one of claims 2 to 6, wherein the elastic member is a spring (42) sleeved on the air exhaust valve core (41), the air exhaust cavity (22) comprises a spring accommodating section (222) and an air exhaust section (223) arranged on one side of the spring accommodating section (222), a tank communication hole (224) communicated with the oil tank (1) for the entry and exit of grease is formed in the side wall of the spring accommodating section (222), the pump body exhaust hole (221) is formed in the side wall of the air exhaust section (223), a step surface is formed at the joint of the air exhaust section (223) and the spring accommodating section (222), and one end of the spring (42) abuts against the step surface.

8. The grease-lubricated pump according to claim 7, wherein the part of the exhaust valve core (41) on which the spring (42) is sleeved is a spring mounting section (414), the exhaust valve core (41) comprises a sealing section (413), the sealing section (413) is located between the spring mounting section (414) and the operating end (411), and one end of the spring (42) is pressed against the end face of the sealing section (413).

9. The grease lubrication pump according to any one of claims 1 to 6, characterized in that the air vent valve core (41) comprises an air vent control section (412) extending into the air vent cavity (22), and when the air vent valve core (41) is in the air-closed position, the outer peripheral surface of the air vent control section (412) blocks the pump body air vent hole (221) to block the pump body air vent hole (221) from the pump oil channel (21).

10. The grease lubrication pump according to claim 9, wherein the exhaust control section (412) is provided with a blind hole (415) extending in the moving direction of the exhaust spool (41), a spool exhaust hole (416) is provided on the hole wall of the blind hole (415), a spool exhaust ring groove (417) communicating with the spool exhaust hole (416) is provided on the outer periphery of the exhaust spool (41), the spool exhaust ring groove (417) communicates with the pump body exhaust hole (221) when the exhaust spool (41) is in the exhaust position, and the spool exhaust ring groove (417) blocks the notch by the side wall of the exhaust cavity (22) when the exhaust spool (41) is in the air-off position.