Adjustable flow pump unit

Abstract

The utility model relates to the technical field of lubricating pumps, in particular to an adjustable flow pump unit which comprises a valve core pump body and a plunger pump body, and an adjustable valve core and an annular plate are arranged in the valve core pump body; the annular plate is fixedly arranged in the valve core pump body; the adjustable valve element comprises a valve element sleeve, an adjustable valve element rod and an adjusting nut. The valve element sleeve is in sliding connection with the inner wall of the annular plate. A valve core spring is arranged outside the valve core sleeve; the adjustable valve core rod is divided into a top smooth rod and a tail threaded rod; the threaded rod is rotationally installed in the valve element sleeve. The tail part of the threaded rod extends out of the valve core sleeve and is fixedly connected with the adjusting nut; a plunger rod is arranged in the plunger pump body in a sliding manner; a smooth rod at the top of the adjustable valve core rod extends into the plunger pump body and is in sliding connection with the plunger pump body; an oil containing cavity is formed between the smooth rod and the plunger rod; according to the oil pump, the oil outlet amount of the pump body can be adjusted, and application under various oil outlet amount working conditions can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of lubrication pumps, in particular to an adjustable flow pump unit. Background Art

[0002] A lubrication pump is a device used to supply lubricant to lubricated parts. It is widely used in various mechanical equipment to reduce friction and extend equipment life. Its primary function is to ensure smooth equipment operation, reduce equipment failures, and extend machine life. Typically, this type of lubrication pump consists of a plunger, a pump unit, and an internal one-way valve. A cam plate drives the plunger's telescopic movement, achieving oil suction and delivery. However, these pumps generally lack the ability to adjust the pump unit's oil output, making them inadequate for diverse operating conditions. Utility Model Content

[0003] The purpose of this application is to provide an adjustable flow pump unit, aiming to solve the problems in the prior art.

[0004] The embodiment of the present application provides an adjustable flow pump unit, including a valve core pump body and a plunger pump body, wherein an adjustable valve core and an annular plate are provided in the valve core pump body; the annular plate is fixedly arranged in the valve core pump body; the adjustable valve core includes a valve core sleeve, an adjustable valve core rod and an adjusting nut; the valve core sleeve is slidably connected to the inner wall of the annular plate; a valve core spring is provided on the outside of the valve core sleeve; the adjustable valve core rod is divided into a top smooth rod and a tail threaded rod; the threaded rod is rotatably installed in the valve core sleeve through the external thread on the threaded rod surface; the The tail of the threaded rod extends from the valve core sleeve and is fixedly connected to the adjusting nut; a screw plug is provided at the tail end of the valve core pump body; the screw plug is connected to the valve core pump body through a thread; a grease outlet is provided on one side wall of the tail of the valve core pump body; the plunger pump body is located at the top of the valve core pump body; a plunger rod is slidably provided in the plunger pump body; the smooth rod at the top of the adjustable valve core rod extends into the plunger pump body and is slidably connected to the plunger pump body; an oil containing chamber is formed between the smooth rod and the plunger rod; a grease inlet is provided on the pump body at the oil containing chamber.

[0005] Furthermore, a safety valve connecting hole is provided on the other side wall of the tail of the valve core pump body; the safety valve connecting hole is connected to the safety valve.

[0006] Furthermore, the plunger rod is connected to the cam plate.

[0007] Furthermore, a fixing ring and a sealing rubber gasket are provided on the top of the valve core sleeve; and the valve core spring is located between the annular plate and the sealing rubber gasket.

[0008] Furthermore, a slotted screwdriver fixing hole is provided on the adjusting nut.

[0009] The beneficial effects of the present invention are as follows: the present invention designs the valve core mechanism as a length-adjustable structure, and the valve core rod is moved by rotating the thread, so that the top of the valve core rod can move along with the thread, thereby changing the volume of the oil-containing chamber, and ultimately changing the oil output of the pump unit, so that the pump unit has the function of adjusting the oil output, and meets the application under various oil output working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the utility model.

[0011] Figure 2 Schematic diagram of the adjustable valve core structure.

[0012] Figure 3 This is a schematic diagram of the structure of the valve core after adjustment of the utility model.

[0013] Figure 4 Schematic diagram of the adjustable valve core structure after adjustment.

[0014] In the picture:

[0015] 1. Valve core pump body; 11. Grease outlet; 12. Safety valve; 13. Screw plug; 14. Safety valve connecting hole; 2. Plunger pump body; 20. Plunger rod; 21. Oil chamber; 22. Grease inlet; 3. Adjustable valve core; 31. Adjustable valve core rod; 311. Smooth rod; 312. Threaded rod; 32. Valve core sleeve; 321. Sealing gasket; 322. Retaining ring; 33. Adjusting nut; 4. Cam plate; 41. Rotating main shaft; 5. Ring plate; 6. Valve core spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] like Figure 1 and Figure 2The adjustable flow pump unit shown in the figure includes a valve core pump body 1 and a plunger pump body 2, wherein the valve core pump body 1 is provided with an adjustable valve core 3 and an annular plate 5; the annular plate 5 is fixedly arranged in the valve core pump body 1; the adjustable valve core includes a valve core sleeve 32, an adjustable valve core rod 31 and an adjusting nut 33; the valve core sleeve 32 is slidably connected to the inner wall of the annular plate 5; a valve core spring 6 is provided on the outside of the valve core sleeve 32; the adjustable valve core rod 31 is divided into a top smooth rod 311 and a tail threaded rod 312; the threaded rod 312 is rotatably installed in the valve core sleeve 32 through the external thread on the threaded rod surface; the tail of the threaded rod 312 extends from the valve core sleeve 32 and is connected to the adjusting nut The nut 33 is fixedly connected; a screw plug 13 is provided at the tail end of the valve core pump body 1; the screw plug 13 is connected to the valve core pump body 1 by a thread, and the screw plug 13 is detachable, so that the internal adjustment nut 33 can be rotated conveniently with a screwdriver; a grease outlet 11 is provided on one side wall of the tail of the valve core pump body 1; the plunger pump body 2 is located at the top of the valve core pump body 1; a plunger rod 20 is slidably provided in the plunger pump body 2; the top smooth rod 311 of the adjustable valve core rod 31 extends into the plunger pump body 2 and is slidably connected to the plunger pump body 2; an oil containing chamber 21 is formed between the smooth rod 311 and the plunger rod 20; a grease inlet 12 is provided on the pump body at the oil containing chamber 21.

[0018] like Figure 3 and Figure 4 As shown, when the volume of the oil accommodating chamber 21 needs to be adjusted, the screw plug 13 is removed from the valve core pump body 1, and a flat-head screwdriver is used to insert into the pump body through the screw plug opening to control the adjustment nut 33 to rotate. The threaded rod 312 rotates in the valve core sleeve 32, causing the entire adjustable valve core rod 31 to be displaced, thereby changing the distance between the smooth rod 311 and the plunger rod 20, thereby achieving the effect of adjusting the volume of the oil accommodating chamber 21 and realizing the adjustment of the oil output of the pump unit.

[0019] A safety valve connecting hole 14 is provided on the other side wall of the tail of the valve core pump body 1; the safety valve connecting hole 14 is connected to the safety valve 12. When the oil pressure in the valve core pump body 1 is too high, the safety valve 12 opens to discharge the oil and protect the pump body.

[0020] The plunger rod 20 is connected to the cam plate 4. According to the different structures of the cam plate of the lubrication pump, the connection method between the plunger rod 20 and the cam plate 4 can be divided into a hook type and a spring type, which can be selected according to needs. The rotating spindle 41 of the cam plate 4 is controlled by a motor, which drives the cam plate 4 to move and pushes the plunger 20 to do reciprocating motion to achieve fat suction and fat removal.

[0021] A fixing ring 322 and a sealing rubber gasket 321 are provided on the top of the valve core sleeve 32; the valve core spring 6 is located between the annular plate 5 and the sealing rubber gasket 321. When the plunger rod 20 reciprocates under the action of the cam disc 4, the valve core sleeve 32 slides with the annular plate 5. Under the rebound action of the valve core spring 6, the adjustable valve core reciprocates synchronously in the valve core pump body 1, and the grease in the oil chamber is transported to the valve core pump body 1, and finally flows out from the grease outlet.

[0022] The adjusting nut 33 is provided with a slotted screwdriver fixing hole, and a slotted screwdriver can be used to control the adjusting nut.

[0023] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An adjustable flow pump unit, comprising a valve core pump body and a plunger pump body, characterized in that: The cam body is provided with an adjustable valve core and an annular plate; the annular plate is fixedly arranged in the valve core pump body; the adjustable valve core includes a valve core sleeve, an adjustable valve core rod and an adjusting nut; the valve core sleeve is slidably connected to the inner wall of the annular plate; a valve core spring is provided on the outside of the valve core sleeve; the adjustable valve core rod is divided into a top smooth rod and a tail threaded rod; the threaded rod is rotatably installed inside the valve core sleeve through the external thread on the threaded rod surface; the tail of the threaded rod extends from the valve core sleeve and is fixedly connected to the adjusting nut; a screw plug is provided at the tail end of the valve core pump body; the screw plug is threadedly connected to the valve core pump body; a grease outlet is provided on one side wall of the tail end of the valve core pump body; the plunger pump body is located at the top end of the valve core pump body; a plunger rod is slidably provided in the plunger pump body; the top smooth rod of the adjustable valve core rod extends into the plunger pump body and is slidably connected to the plunger pump body; an oil containing chamber is formed between the smooth rod and the plunger rod; a grease inlet is provided on the pump body at the oil containing chamber.

2. The adjustable flow pump unit according to claim 1, characterized in that A safety valve connecting hole is provided on the other side wall of the tail of the valve core pump body; the safety valve connecting hole is connected to the safety valve.

3. The adjustable flow pump unit according to claim 1, characterized in that The plunger rod is connected to the cam plate.

4. The adjustable flow pump unit according to claim 1, characterized in that A fixing ring and a sealing rubber pad are provided on the top of the valve core sleeve; and the valve core spring is located between the annular plate and the sealing rubber pad.

5. The adjustable flow pump unit according to claim 1, characterized in that The adjusting nut is provided with a slotted screwdriver fixing hole.

Images