Lubricating nipple and lubricating pump

Abstract

The utility model discloses an oil nipple which can avoid oil leakage caused by the fact that a one-way valve cannot be normally closed. In addition, the utility model further discloses a lubricating pump. The oil nipple comprises a body, a connector, a one-way valve and a filter element, a second end of the connector is mounted at a first end of the body, a first channel is arranged in the connector, a second channel and a third channel which are communicated with each other are arranged in the body, the first channel is communicated with the second channel, the filter element is mounted in the second channel, and the one-way valve is mounted in the third channel.

Description

Technical Field

[0001] The utility model relates to the field of lubrication equipment, in particular to an oil filling nozzle and a lubricating pump. Background Art

[0002] A lubricating pump is a kind of lubrication equipment, which is used to provide lubricant for specific lubrication parts, reduce wear and friction during equipment operation, and ensure the normal operation of the equipment.

[0003] Most of the existing lubricating pumps use a fuel dispenser or a fuel filling gun to fill the fuel tank through an oil filling nozzle. A check valve and a filter element are arranged in the oil filling nozzle. The filter element is used to filter out pollutants such as impurities, residues, and metal particles. The check valve opens during fuel filling and closes when fuel filling stops. However, in the prior art, the check valve in the oil filling nozzle is arranged at the front and the filter element is arranged at the back. Impurities, residues, and metal particles in the oil fluid may get stuck in the check valve, resulting in the check valve not closing normally, which causes an oil leakage accident in the fuel tank.

[0004] Therefore, there is an urgent need for an oil filling nozzle and a lubricating pump that can avoid the abnormal closing of the check valve to overcome the above defects. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an oil filling nozzle that can avoid the abnormal closing of the check valve.

[0006] Another purpose of the utility model is to provide a lubricating pump that can avoid oil leakage accidents caused by the abnormal closing of the check valve.

[0007] To achieve the above purpose, the oil filling nozzle provided by the utility model includes a body, a connector, a check valve, and a filter element. The second end of the connector is installed at the first end of the body. A first channel is arranged in the connector. A second channel and a third channel that are connected to each other are arranged in the body. The first channel is communicated with the second channel. The filter element is installed in the second channel, and the check valve is installed in the third channel.

[0008] Preferably, the second end of the connector is sleeved on the first end of the body by means of threaded connection.

[0009] Preferably, a hexagonal structure is arranged on the outer side wall of the second end of the connector, and a hexagonal structure is arranged on the outer side wall of the first end of the body.

[0010] Preferably, a first sealing ring is arranged between the second end of the connector and the first end of the body.

[0011] Preferably, the bottom surface of the second channel is formed into a first conical surface structure, and the first conical surface structure surrounds an insertion port.

[0012] Preferably, an installation cavity is formed in the second end of the connector, the first end of the body penetrates into the installation cavity, and a second conical surface structure is formed at the bottom of the installation cavity.

[0013] Preferably, the one-way valve includes an elastic member and a valve body, a plug and a structural ring are formed at the first end of the valve body, the elastic member is sleeved on the second end of the valve body and pressed against the structural ring, the elastic member always has a tendency to push the valve body so that the plug is inserted into the insertion port, and the plug is sleeved with a second sealing ring.

[0014] Preferably, a retaining ring is installed in the third channel, the elastic member is also pressed against the retaining ring, and the outer side wall of the second end of the main body is provided with a plurality of oil outlets connected with the third channel.

[0015] Preferably, the fueling nozzle of the present invention further comprises a protective sleeve detachably mounted on the joint, the joint is mounted with a connecting piece, a first end of a connecting chain is fixed to the connecting piece and a second end is fixed to the protective sleeve.

[0016] In order to achieve the second objective mentioned above, the utility model further provides a lubrication pump, which includes the above-mentioned oil filling nozzle.

[0017] Compared with the prior art, the oil filling nozzle of the utility model includes a body, a joint, a one-way valve and a filter element. The second end of the joint is installed on the first end of the body, a first channel is provided in the joint, a second channel and a third channel are provided in the body, the first channel is connected to the second channel, the filter element is installed in the second channel, and the one-way valve is installed in the third channel. When filling oil, the oil flows through the first channel, the second channel and the third channel in turn, and the inflowing oil is first filtered by the filter element to filter out impurities, residues and metal particles, and then flows through the one-way valve and flows into the oil tank. Since the oil flowing through the one-way valve does not contain impurities, residues and metal particles, it will not get stuck on the one-way valve, and will not cause the one-way valve to fail to close normally.

[0018] It is understandable that the lubrication pump of the present invention includes the above-mentioned oil filling nozzle, and the one-way valve in the oil filling nozzle can be closed normally to avoid oil leakage accidents in the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the oil filling nozzle of the present utility model.

[0020] Figure 2 It is a three-dimensional exploded view of the fuel nozzle of the utility model.

[0021] Figure 3 It is a bottom view of the oil filling nozzle of the utility model.

[0022] Figure 4 is along Figure 3 The cross-sectional view obtained after cutting along the AA line segment. DETAILED DESCRIPTION

[0023] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the implementation modes and the accompanying drawings.

[0024] As Figures 1 to 4 shown, the present utility model provides a fuel nozzle 100, which comprises a body 10, a connector 20, a check valve 30 and a filter element 40. The second end of the connector 20 is installed at the first end of the body 10. A first channel 21 is provided in the connector 20. A second channel 11 and a third channel 12 which are communicated with each other are provided in the body 10. The first channel 21 is communicated with the second channel 11. The filter element 40 is installed in the second channel 11, and the check valve 30 is installed in the third channel 12.

[0025] The fuel nozzle 100 of the present utility model is applicable to a lubricating pump and can be installed on the lubricating pump. A fuel dispenser or a fuel gun is used to fill the fuel tank through the fuel nozzle 100. When refueling, the oil flows through the first channel 21, the second channel 11 and the third channel 12 in sequence. The incoming oil is first filtered by the filter element 40, filtering out impurities, residues and metal particles, and then flows through the check valve 30 and into the fuel tank. Since the oil flowing through the check valve 30 does not contain impurities, residues and metal particles, it will not get stuck on the check valve 30, and the check valve 30 will not fail to close normally, avoiding oil leakage accidents in the fuel tank.

[0026] Preferably, the second end of the connector 20 is sleeved on the first end of the body 10 by means of threaded connection. Of course, according to actual needs, other connection methods such as clamping can also be selected. To enhance the seal, a first sealing ring 50 is provided between the second end of the connector 20 and the first end of the body 10.

[0027] As Figures 1 to 4 shown, a hexagonal structure 01 is provided on the outer side wall of the second end of the connector 20, and a hexagonal structure 01 is also provided on the outer side wall of the first end of the body 10. With the help of the provided hexagonal structure 01, the second end of the connector 20 can be conveniently sleeved on the first end of the body 10 by using a wrench or the like.

[0028] As Figure 4 shown, the bottom surface of the second channel 11 forms a first conical surface structure 111, and the first conical surface structure 111 surrounds an insertion opening 112. The oil can flow more concentratedly through the insertion opening 112 after passing through the first conical surface structure 111, enabling the oil to more conveniently push open the check valve 30.

[0029] As Figure 4 shown, the second end of the connector 20 forms an installation cavity 22, the first end of the body 10 penetrates into the installation cavity 22, and the bottom of the installation cavity 22 forms a second conical surface structure 23. The provided second conical surface structure 23 can make the oil flow smoothly into the second channel 11.

[0030] As Figure 4As shown, the one-way valve 30 includes an elastic member 31 and a valve body 32. A plug 321 and a structural ring 322 are formed at the first end of the valve body 32. The elastic member 31 is sleeved on the second end of the valve body 32 and abuts against the structural ring 322. The elastic member 31 always has a tendency to push the valve body 32 so that the plug 321 is inserted into the insertion port 112. A second sealing ring 323 is sleeved on the plug 321, and the second sealing ring 323 provides a sealing function. When refueling, the oil pushes the plug 321 out of the insertion port 112, and the one-way valve 30 opens, so that the oil can flow from the second channel 11 into the third channel 12. After stopping refueling, the elastic member 31 will push the valve body 32 to insert the plug 321 into the insertion port 112, and the one-way valve 30 closes. Preferably, the elastic member 31 is selected as a spring, but it is not limited thereto.

[0031] Further, a retaining ring 33 is installed in the third channel 12. The elastic member 31 also abuts against the retaining ring 33. The elastic member 31 is arranged between the retaining ring 33 and the structural ring 322. A plurality of oil outlets 13 communicating with the third channel 12 are formed on the outer side wall of the second end of the body 10. The oil can flow out through the oil outlets 13 or can flow out after passing through the retaining ring 33.

[0032] As Figures 1 to 4 shown, the fuel nozzle 100 of the present utility model further includes a protective sleeve 60 detachably sleeved on the joint 20. A connecting member 61 is sleeved on the joint 20. The first end of a connecting chain 62 is fixed to the connecting member 61 and the second end is fixed to the protective sleeve 60. Preferably, the connecting chain 62 is selected as a ball chain, but it is not limited thereto. The protective sleeve 60 is selected as a rubber tube, but it is not limited thereto.

[0033] The above-disclosed are only the preferred examples of the present utility model, and the scope of the rights of the present utility model cannot be limited thereby. Therefore, all equivalent changes made according to the claims of the present utility model fall within the scope covered by the present utility model.

Claims

1. A grease nipple, suitable for a lubrication pump, characterized in that: It includes a body, a joint, a one-way valve and a filter element, the second end of the joint is installed on the first end of the body, the joint is provided with a first channel, the body is provided with a second channel and a third channel connected to each other, the first channel is connected to the second channel, the filter element is installed in the second channel, and the one-way valve is installed in the third channel.

2. The fuel nozzle according to claim 1, characterized in that: The second end of the connector is sleeved on the first end of the body by threaded connection.

3. The fuel nozzle according to claim 1, characterized in that: The outer side wall of the second end of the joint is provided with a hexagonal structure, and the outer side wall of the first end of the body is provided with a hexagonal structure.

4. The fuel nozzle according to claim 1, characterized in that: A first sealing ring is provided between the second end of the joint and the first end of the body.

5. The fuel nozzle according to claim 1, characterized in that: The bottom surface of the second channel is formed into a first conical surface structure, and the first conical surface structure surrounds an insertion port.

6. The fuel nozzle according to claim 1, characterized in that: A mounting cavity is formed in the second end of the joint, the first end of the body penetrates into the mounting cavity, and the bottom of the mounting cavity forms a second conical surface structure.

7. The fuel nozzle according to claim 5, characterized in that: The one-way valve includes an elastic member and a valve body, a plug and a structural ring are formed at the first end of the valve body, the elastic member is sleeved on the second end of the valve body and pressed against the structural ring, the elastic member always has a tendency to push the valve body so that the plug is inserted into the insertion port, and the plug is sleeved with a second sealing ring.

8. The fuel nozzle according to claim 7, characterized in that: A retaining ring is installed in the third channel, and the elastic member is also pressed against the retaining ring. The outer side wall of the second end of the body is provided with a plurality of oil outlets connected with the third channel.

9. The fuel nozzle according to claim 1, characterized in that: It also includes a protective sleeve which is detachably mounted on the joint. The joint is mounted with a connecting piece. The first end of a connecting chain is fixed to the connecting piece and the second end is fixed to the protective sleeve.

10. A lubrication pump, characterized in that: The invention comprises a fuel filling nozzle as claimed in any one of claims 1 to 9.

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