CN205261194U - Manual release grease pump - Google Patents

Abstract

The utility model discloses a manual release grease pump, including grease pump body, grease pump body include with the oil tank with inhale oil discharge device, oil tank and positive displacement distributor intercommunication, the oil discharge device that inhales include suction oil piston and hand pole, suction oil piston and oil tank intercommunication, the hand pole be connected with suction oil piston's plunger rod, grease pump body on be provided with manual pressure relief device, manual pressure relief device and oil tank between form airtight return circuit. This manual release grease pump, easy operation can make each lubrication points sufficient lubrication, and manual pressure -relief valve device action sensitivity can reach 100%, and it is extensive to be suitable for the grease, and the supporting formula of resisting, positive displacement, lubricating system application scope is extensive for the formula of going forward one by one, has the high performance -price ratio, is fit for promoting the middle and high end customer and uses.

Description

A manual pressure relief grease pump

technical field

The utility model relates to the technical field of grease pumps, in particular to a manual pressure relief grease pump.

Background technique

At present, the manual grease pumps in the market are all straight-through type, and most of them are equipped with proportional metering parts to form a resistive lubrication system, which is limited in application occasions and is mainly aimed at low-end customers. Due to the reasons of the whole system, individual lubrication points may not be fully lubricated. , leading to wear and tear of equipment lubrication points, reducing equipment accuracy and reducing production efficiency.

Chinese patent literature (announcement date: January 19, 2005, announcement number: CN2672426Y) discloses a hand-operated grease pump, which consists of a pump body, a grease tank, a plunger chamber, a plunger, a manual mechanism, a pressure regulating valve and a stop valve. The plunger chamber is located in the pump body, one end of the plunger is in contact with the pressure regulating valve and the check valve, the pressure regulating valve is connected with the oil outlet channel, the plunger can reciprocate in the chamber, and the plunger The other end of the plug protrudes out of the pump body and is hinged with the manual mechanism. The grease tank is a plastic soft corrugated tank, and the outlet at the lower end communicates with the grease inlet channel in the pump body and is sealed with the pump body. The new type has the characteristics of simple structure and convenient operation, and can be widely used in various mechanical lubrication with grease lubrication; when in use, the corrugated tank shrinks with the reduction of the internal grease until the grease is basically used up; when it is necessary to add grease, only It only needs to replace the corrugated tank, and it is not necessary to directly fill the grease by hand, which is simple and hygienic, and will not mix air in the grease, avoiding the occurrence of the empty pump phenomenon.

Although the above technical solution provides a hand-operated grease pump, it solves the problem of avoiding the empty pump phenomenon.

Utility model content

The purpose of this utility model is to solve the problems in the prior art that individual lubricating points cannot be sufficiently lubricated, resulting in wear of the lubricating points of the equipment, low precision of the equipment, and low production efficiency, and provide a simple operation, high sensitivity, which can make All lubricating points are fully lubricated, and a wide range of manual pressure relief grease pumps are used.

The technical solution adopted by the utility model to achieve its technical purpose is: a manual pressure relief grease pump, including a grease pump body, the grease pump body includes an oil tank and an oil suction and discharge device, and the oil tank is communicated with a volumetric distributor , the oil suction and discharge device includes an oil suction and discharge piston and a hand pressure rod, the oil suction and discharge piston is in communication with the oil tank, the hand pressure rod is connected with the plunger rod of the oil suction and discharge piston, and the grease pump body is provided with There is a manual pressure relief device, and a closed circuit is formed between the manual pressure relief device and the fuel tank. The manual pressure relief grease pump is equipped with a manual pressure relief device, so that the manual pressure relief device and the oil tank form a closed circuit. When lubrication is required, the manual pressure lever is pulled back and forth to drive the plunger rod of the oil suction and discharge piston to realize the inner cavity of the oil tank. The body volume changes to achieve oil suction and discharge. When the hand lever is pushed, the volume of the cavity becomes smaller to generate a high-pressure area, and the grease will move to each connected volumetric distributor, and the grease will be stored in the distributor. However, the other high-pressure The oil will reach the manual pressure relief device, forming a closed circuit as a whole. At this time, press the manual pressure relief device, and the high-pressure oil will flow into the oil tank, completing a pressure relief and an oil discharge action at the same time. Quantitative oil discharge can be realized by repeated operations like this. Moreover, the manual pressure relief grease pump is easy to operate and has high sensitivity, which can fully lubricate each lubrication point and is widely used.

As a preference, the manual pressure relief device includes a lower valve body, an upper valve body and a valve core, the lower valve body and the upper valve body are screw-tightly connected, and the inside of the lower valve body and the upper valve body is provided with a valve Core chamber, the lower valve body is provided with an oil return hole communicating with the valve core chamber, the valve core is arranged in piston form with the valve core chamber, the valve core is provided with a retaining spring, and the A spring is sheathed on the valve core between the jump ring and the lower valve body. The rear-action pressure relief device is equipped with an upper valve body, a lower valve body and a valve core. This structure is convenient for setting an oil return hole and achieving the purpose of manual pressure relief. When pressure relief is required, press the manual pressure relief valve, and the high-pressure oil will flow along the valve The oil return hole in the body flows into the oil tank, completing a pressure relief and an oil discharge action at the same time.

As a preference, the lower valve body is provided with a high-pressure grease inlet, and the high-pressure grease inlet communicates with the fuel tank through a bent oil pipeline. It is connected to the oil tank through the oil bend pipe, so that the high-pressure grease that does not flow into the distributor will reach the manual pressure relief device along the oil bend pipe, forming a closed circuit as a whole.

Preferably, the bent oil pipeline is connected to the oil tank through an oil pipe joint and a straight joint. This facilitates connection with the fuel tank to form a sealed circuit.

As a preference, the spool includes a spool handle and a spool body, the spool handle is arranged outside the upper valve body, the spool body is provided with oil holes, and the oil holes are respectively connected to The high-pressure grease inlet is connected to the oil return hole. The spool is provided with a spool handle and a spool body, which is convenient for manually pressing the spool handle for pressure relief, and the setting of the oil hole is convenient for forming a sealed circuit.

Preferably, the lower valve body is provided with an external thread connected with the oil tank. The external thread is provided for easy connection with the fuel tank.

Preferably, the upper end of the oil tank is provided with a sealed oil tank cover, and the oil tank is arranged on the pump seat.

The beneficial effects of the utility model are: the manual pressure relief grease pump is easy to operate, can fully lubricate each lubricating point, the action sensitivity of the manual pressure relief valve device can reach 100%, is suitable for a wide range of grease, and is equipped with resistive, volumetric, delivery The advanced lubrication system has a wide range of applications and is cost-effective. It is suitable for promoting the use of high-end customers.

Description of drawings

Fig. 1 is a kind of structural representation of manual pressure relief grease pump of the present utility model;

Fig. 2 is a kind of structural representation of manual pressure relief device in the utility model;

In the figure: 1. Grease pump body, 2. Oil tank, 3. Oil suction and discharge device, 4. Oil suction and discharge piston, 5. Hand lever, 6. Manual pressure relief device, 7. Lower valve body, 8. Upper valve body, 9. Spool, 10. Spool cavity, 11. Oil return hole, 12. Circlip, 13. Spring, 14. High-pressure grease inlet, 15. Bent oil pipeline, 16. Oil pipe joint, 17. Straight-through joint, 18. Spool handle, 19, spool body, 20, oil hole, 21, external thread, 22, sealing oil tank cap, 23, pump seat.

detailed description

The technical solution of the utility model will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

Example 1:

In the embodiment shown in Figure 1, a manual pressure relief grease pump includes a grease pump body 1, the grease pump body 1 includes an oil tank 2 and an oil suction and discharge device 3, the oil tank 2 communicates with a volumetric distributor, and the oil suction and discharge device 3 It includes the oil suction and discharge piston 4 and the hand pressure rod 5, the oil suction and discharge piston 4 is connected with the fuel tank 2, the hand pressure rod 5 is connected with the plunger rod of the oil suction and discharge piston 4, and the grease pump body 1 is provided with a manual pressure relief device 6, which can be manually discharged. A closed circuit is formed between the pressure device 6 and the oil tank 2.

The manual pressure relief device 6 includes a lower valve body 7, an upper valve body 8 and a valve core 9 (see Figure 2). The lower valve body 7 and the upper valve body 9 are connected in a threaded and sealed connection. The spool cavity 10, the lower valve body 7 is provided with an oil return hole 11 communicating with the spool cavity 10, the spool 9 and the spool cavity 10 are arranged in piston form, the spool 9 is provided with a circlip 12, the circlip 12 A spring 13 is sheathed on the valve core 9 between the lower valve body 7 . The lower valve body 7 is provided with a high-pressure grease inlet 14, and the high-pressure grease inlet 14 communicates with the oil tank 2 through a curved oil pipeline 15. The bent oil pipeline 15 is connected with the fuel tank 2 through the oil pipe joint 16 and the straight joint 17 .

The spool 9 includes a spool handle 18 and a spool body 19, the spool handle 18 is arranged on the outside of the upper valve body 8, the spool body 19 is provided with an oil hole 20, and the oil hole 20 is connected with the high-pressure grease inlet 14 and the oil return port respectively. Hole 11 communicates.

The lower valve body 7 is provided with an external thread 21 connected with the oil tank 2 . The upper end of the oil tank 2 is provided with a sealed oil tank cover 22 , and the oil tank 2 is arranged on the pump seat 23 .

The manual pressure relief grease pump includes a sealed oil tank cover 22, an oil tank 2, a pump seat 23, a straight joint 17, an oil pipe joint 16, a curved oil pipeline 15, a manual pressure relief valve device 6, and a hand lever 5. When lubrication is required, pull the hand lever 5 back and forth to drive the plunger rod of the oil suction and discharge piston 4 to move to realize the change in the volume of the cavity to realize oil suction and discharge. When the hand lever 5 is pushed, the volume of the cavity becomes smaller to generate a high pressure area The grease will move to each connected volumetric distributor, and the grease will be stored in the distributor, but the other high-pressure oil will reach the manual pressure relief device 6 along the curved oil pipe 15, forming a closed circuit as a whole. At this time, press With the spool handle 18 of the manual pressure relief device 6, the high-pressure oil flows into the oil tank 2 along the high-pressure grease inlet 14, the oil hole 20, and the oil return hole 11, and completes a pressure relief and also completes an oil discharge action at the same time. Quantitative oil discharge can be realized by repeated operations like this.

The manual pressure relief grease pump is easy to operate, and the action sensitivity of the manual pressure relief device can reach 100%. It is suitable for a wide range of greases (NLGI000, 00, 0, 1#), and it is equipped with resistive, volumetric, and progressive lubrication systems for a wide range of applications. , with high cost performance, suitable for promoting the use of high-end customers.

Claims (7)

1. a manual release grease pump, comprise grease pump body (1), it is characterized in that: described grease pump body (1) comprises fuel tank (2) and inhales discharge equipment (3), described fuel tank (2) is communicated with positive displacement distributor, described suction discharge equipment (3) comprises suction oil piston (4) and hand bar (5), described suction oil piston (4) is communicated with fuel tank (2), described hand bar (5) is connected with the plunger rod of suction oil piston (4), on described grease pump body (1), be provided with manual pressure relief device (6), between described manual pressure relief device (6) and fuel tank (2), form closed loop.

2. the manual release grease pump of one according to claim 1, it is characterized in that: described manual pressure relief device (6) comprises lower valve body (7), upper valve body (8) and spool (9), described lower valve body (7) is connected with upper valve body (8) thread seal, described lower valve body (7) and upper valve body (8) inside are provided with spool chamber (10), on described lower valve body (7), be provided with the spill port (11) being communicated with spool chamber (10), described spool (9) is equipped with spool chamber (10) piston type, on described spool (9), be provided with jump ring (12), on spool (9) between described jump ring (12) and lower valve body (7), be arranged with spring (13).

3. the manual release grease pump of one according to claim 2, is characterized in that: on described lower valve body (7), be provided with high pressure grease import (14), described high pressure grease import (14) is communicated with fuel tank (2) by curved oil pipe line (15).

4. the manual release grease pump of one according to claim 3, is characterized in that: described curved oil pipe line (15) is connected with fuel tank (2) with straight coupling (17) by oil connection (16).

5. the manual release grease pump of one according to claim 3, it is characterized in that: described spool (9) comprises spool handle (18) and valve core (19), described spool handle (18) is arranged on the outside of upper valve body (7), on described valve core (19), be provided with oilhole (20), described oilhole (20) is communicated with high pressure grease import (14) and spill port (11) respectively.

6. the manual release grease pump of one according to claim 2, is characterized in that: on described lower valve body (7), be provided with the external screw thread (21) being connected with fuel tank (2).

7. according to the manual release grease pump of one described in claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that: fuel tank (2) upper end is provided with Seal Oil case lid (22), described fuel tank (2) is arranged on pump seat (23).