A lubricating pump with a lubricating nozzle

Abstract

The utility model discloses a kind of oil filler neck and lubricating pump, which can make one-way valve have good guidance and not easy to run off. The utility model's oil filler neck includes body, joint, filter core and one-way valve, the second end of joint is installed in the first end of body, first passage is equipped in joint, second passage and third passage are equipped in body, first passage is communicated with second passage, filter core is installed in second passage, one-way valve is equipped in third passage, one-way valve is used to control the communication or disconnection of second passage and third passage, one-way valve includes valve core and elastic member, body is equipped with plug-in hole between second passage and third passage, the first end of valve core forms action end, action end is inserted into plug-in hole, connection channel is equipped in action end, connection channel is communicated with second passage, the side surface of action end is penetrated with the connection port communicated with connection channel, elastic member is tightly closed to valve core, so that action end has the tendency of being inserted into plug-in hole constantly.

Description

Technical Field

[0001] This utility model relates to the field of lubrication equipment, and in particular to an oil filler and a lubrication pump. Background Technology

[0002] A lubrication pump is a lubrication device used to provide lubricant to specific lubrication points, reducing wear and friction during equipment operation and ensuring normal equipment operation.

[0003] Most existing lubrication pumps use a fuel dispenser or nozzle to fill the fuel tank through a fuel inlet. The inlet contains a check valve and a filter element. The filter element removes impurities, residues, metal particles, and other contaminants. The check valve opens during filling and closes when filling stops. However, existing check valves lack guidance during movement, making them prone to deviation during reciprocating motion. This can lead to leaks, valve jamming, and damage to the sealing rings on the check valve due to frequent impacts. Therefore, there is an urgent need for a fuel inlet and lubrication pump that provides good guidance for the check valve to overcome these shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a filler nozzle that enables the one-way valve to have good guidance and is not prone to deviation.

[0005] Another objective of this invention is to provide a lubrication pump that includes an oil nozzle that provides good guidance for the one-way valve and prevents it from deviating from its intended path.

[0006] To achieve the above objectives, the filler nozzle of this utility model includes a body, a connector, a filter element, and a one-way valve. The second end of the connector is installed at the first end of the body. The connector has a first channel, and the body has a second channel and a third channel. The first channel and the second channel are connected. The filter element is installed in the second channel, and the one-way valve is located in the third channel. The one-way valve is used to control the connection or disconnection of the second channel and the third channel. The one-way valve includes a valve core and an elastic element. The body has an insertion through hole between the second channel and the third channel. The first end of the valve core forms an actuating end, which is inserted into the insertion through hole. The actuating end has a connecting channel that is connected to the second channel. The side of the actuating end has a connecting port that is connected to the connecting channel. The elastic element is pressed against the valve core so that the actuating end always tends to be inserted into the insertion through hole, and the valve core closes the insertion through hole, thereby disconnecting the second channel and the third channel. When oil of a certain pressure is injected into the first channel, the valve core is pushed to slide closer to the second end of the body, so that a part of the structure of the actuating end exits the insertion through hole, and the connecting port is exposed in the third channel.

[0007] Preferably, the connection channel opens on the end face of the actuating end.

[0008] Preferably, the second end of the valve core forms a mounting end, and the elastic element is fitted onto the mounting end.

[0009] Preferably, the one-way valve also includes a first sealing ring. The valve core has a radially outwardly protruding positioning portion formed between the actuating end and the mounting end. The first sealing ring is fitted onto the actuating end and close to the positioning portion. The first sealing ring is located between the connection port and the positioning portion. An abutment structure is provided in the body between the second channel and the third channel. The center of the abutment structure forms a through-hole. When the oil injection stops, the valve core is pushed away from the second end of the body by the pressure of the elastic element, so that the first sealing ring is pressed against the abutment structure, thereby disconnecting the second channel and the third channel.

[0010] Preferably, the filler nozzle of this utility model further includes a limiting structure, which is located in the third channel and close to the second end of the body. One end of the elastic member abuts against the positioning part and the other end abuts against the limiting structure.

[0011] Preferably, the limiting structure has an assembly structure protruding towards the valve core, and the other end of the elastic element is fitted onto the assembly structure.

[0012] Preferably, the limiting structure has an assembly structure protruding towards the valve core, and the other end of the elastic element is fitted onto the assembly structure.

[0013] Preferably, the positioning part is an annular structure surrounding the valve core, and the outer wall of the body is provided with an installation annular groove, on which a second sealing ring is installed.

[0014] Preferably, the side of the main body has several first oil outlet holes that communicate with the third channel, and the limiting structure has a second oil outlet hole that communicates with the third channel.

[0015] Preferably, the second end of the connector is sleeved on the first end of the body and is detachably connected to the first end of the body by means of a threaded connection. The outer side wall of the second end of the connector forms a first hexagonal structure, and the outer side wall of the body forms a second hexagonal structure. The first hexagonal structure and the second hexagonal structure are arranged adjacent to each other, and the connector is detachably fitted with a protective sleeve.

[0016] Preferably, in order to achieve the second objective mentioned above, the present invention also provides a lubrication pump, which includes the aforementioned oil filler nozzle.

[0017] Compared with the prior art, in this utility model, during oil injection, the valve core is pushed by the oil to slide closer to the second end of the body, but the actuating end is not completely withdrawn from the insert through hole. Only a part of the structure withdraws from the insert through hole. Therefore, the valve core is limited and guided by the insert through hole during the sliding process, which avoids the valve core from deviating during the sliding process and avoids the leakage problem caused by the one-way valve not being able to completely close the insert through hole. The valve core will not completely come out of the insert through hole, which avoids the problem of jamming due to not being able to align with the insert through hole. Attached Figure Description

[0018] Figure 1 This is a perspective view of the fuel nozzle of this utility model.

[0019] Figure 2 This is a perspective view of the filler nozzle of this utility model after it has been separated from the connector.

[0020] Figure 3 This is a perspective view of the fuel nozzle of this utility model after it has been separated from the protective sleeve.

[0021] Figure 4 This is a front view of the filler nozzle of this utility model.

[0022] Figure 5 This utility model relates to the edge of a fuel filler nozzle. Figure 4 The sectional view obtained after cutting along line segment AA.

[0023] Figure 6 This is an exploded view of the filler nozzle of this utility model after the protective cover and connector are hidden. Detailed Implementation

[0024] To explain the technical content and structural features of this utility model in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0025] like Figures 1 to 6 As shown, this utility model discloses a filler nozzle 100, which is suitable for use on lubrication pumps. Of course, depending on the actual application needs, it can be applied to other equipment. When the filler nozzle 100 of this utility model is used on a lubrication pump, a fuel dispenser or fuel gun can be used to add fuel to the fuel tank through the filler nozzle 100.

[0026] The filler nozzle 100 of this utility model includes a body 10, a connector 20, a filter element 30, and a one-way valve 40. The second end of the connector 20 is mounted on the first end of the body 10. The connector 20 has a first channel 21, and the body 10 has a second channel 11 and a third channel 12. The first channel 21 and the second channel 11 are connected. The filter element 30 is mounted in the second channel 11, and the one-way valve 40 is located in the third channel 12. The one-way valve 40 is used to control the connection or disconnection of the second channel 11 and the third channel 12. The one-way valve 40 includes a valve core 41 and an elastic element 42. The body 10 has an insertion through hole 13 between the second channel 11 and the third channel 12. The first end of the valve core 41 forms an actuating end 411, which is inserted into the insertion through hole 13. The actuating end 411 has a connecting channel 412 that communicates with the second channel 11. The side of the actuating end 411 has a connecting port 413 that communicates with the connecting channel 412. The elastic element 42 abuts against the valve core 41, so that the actuating end 411 always tends to penetrate the insert through hole 13, and causes the valve core 41 to close the insert through hole 13, thereby disconnecting the second channel 11 and the third channel 12. When oil of a certain pressure is injected into the first channel 21, the valve core 41 is pushed to slide towards the second end close to the body 10, so that a part of the structure of the actuating end 411 is withdrawn from the insert through hole 13, and the connection port 413 is exposed in the third channel 12. At this time, the second channel 11 and the third channel 12 are connected by the connecting channel 412 and the connection port 413. The oil flows through the second channel 11 and the filter element 30, then flows into the third channel 12, and finally flows out.

[0027] Unlike existing technologies, in this invention, during oil injection, the valve core 41 is pushed by the oil to slide closer to the second end of the body 10. However, the actuating end 411 is not completely withdrawn from the insert through hole 13; only a portion of the structure withdraws from the insert through hole 13. Therefore, the valve core 41 is limited and guided by the insert through hole 13 during the sliding process, preventing the valve core 41 from deviating during the sliding process and avoiding leakage caused by the one-way valve 40 failing to completely close the insert through hole 13. The valve core 41 will not completely detach from the insert through hole 13, avoiding the problem of jamming due to failure to align with the insert through hole 13.

[0028] Preferably, the filter element 30 can be a solid or hollow structure, and the structure can be a filter screen, sponge, etc., without specific limitations, as long as it meets the filtration requirements. It is worth noting that injecting oil at a certain pressure into the first channel 21 means that the oil injected into the first channel 231 is sufficient to push the valve core 41 to slide closer to the second end of the body 10, but the oil is not enough to completely push the valve core 41 out of the insert through hole 13. Part of the structure of the actuating end 411 is still in the insert through hole 13. The oil pressure value is not specifically limited.

[0029] like Figures 1 to 6As shown, the connecting channel 412 opens onto the end face of the operating end 411, and the oil filtered by the filter element 30 flows directly into the connecting channel 412.

[0030] like Figures 1 to 6 As shown, the second end of the valve core 41 forms a mounting end 414, and the elastic element 42 is fitted onto the mounting end 414 to enhance the installation stability between the valve core 41 and the elastic element 42. Preferably, in the embodiment provided by this utility model, the elastic element 42 is selected as a spring.

[0031] like Figures 1 to 6 As shown, the one-way valve 40 also includes a first sealing ring 43, and the valve core 41 forms a radially outwardly protruding positioning portion 415 between the actuating end 411 and the mounting end 414. The first sealing ring 43 is fitted onto the actuating end 411 and close to the positioning portion 415, and the first sealing ring 43 is located between the connection port 413 and the positioning portion 415. An abutment structure 14 is provided inside the body 10 between the second channel 11 and the third channel 12, and the abutment structure 14 forms a through-hole 13. When oil injection stops, the valve core 41 is pushed by the pressure of the elastic member 42 and slides away from the second end of the body 10, so that the first sealing ring 43 is pressed against the abutment structure 14, thereby disconnecting the second channel 11 and the third channel 12. Since the first sealing ring 43 is located between the connection port 413 and the positioning part 415, after the first sealing ring 43 is pressed against the abutment structure 14, the connection port 413 will inevitably be in the connection channel 412, and the first sealing ring 43 will disconnect the second channel 11 and the third channel 12.

[0032] like Figures 1 to 6 As shown, the filler nozzle 100 of this utility model also includes a limiting structure 50, which is located in the third channel 12 and close to the second end of the body 10. The first end of the elastic member 42 abuts against the positioning part 415, and the other end abuts against the limiting structure 50. Further, the limiting structure 50 has an assembly structure 51 protruding towards the valve core 41, and the other end of the elastic member 42 is fitted into the assembly structure 51 to improve the installation stability of the elastic member 42. Preferably, the assembly structure 51 is generally columnar to facilitate the fitting of the elastic member 42, but it is not limited to this type of structure.

[0033] like Figures 1 to 6 As shown, the positioning part 415 is an annular structure that surrounds the valve core 41.

[0034] like Figures 1 to 6As shown, the side of the main body 10 has several first oil outlet holes 15 communicating with the third channel 12, and the limiting structure 50 has a second oil outlet hole 52 communicating with the third channel 12. During oil injection, the oil flowing into the third channel 12 can flow out through the first oil outlet holes 15 and the second oil outlet hole 52, and finally flow into the oil tank of the lubrication pump. In addition to the first oil outlet holes 15 on the side of the main body 10, the limiting structure 50 also has a second oil outlet hole 52 to improve the oil flow. Preferably, a total of 4 first oil outlet holes 15 are provided on the side of the main body 10, but it is not limited to this number and the number of holes can be adjusted as needed.

[0035] like Figures 1 to 6 As shown, the second end of the connector 20 is sleeved on the first end of the body 10 and detachably connected to the first end of the body 10 via a threaded connection. A first hexagonal structure 22 is formed on the outer wall of the second end of the connector 20, and a second hexagonal structure 16 is formed on the outer wall of the body 10. The first hexagonal structure 22 and the second hexagonal structure 16 are arranged adjacent to each other. The first hexagonal structure 16 and the second hexagonal structure 22 facilitate the removal of the connector 20 from the body 10. A protective sleeve 60 is detachably fitted onto the connector 20, providing protection against contamination from dust, rainwater, oil, etc.

[0036] like Figures 1 to 6 As shown, the outer side wall of the body 10 has a mounting ring groove 17, and a second sealing ring 70 is installed in the mounting ring groove 17. After the oil nozzle 100 is installed into the lubrication pump, the second sealing ring 70 provides a seal to prevent oil leakage. The mounting ring groove 17 can improve the installation stability of the second sealing ring 70.

[0037] It is also worth noting that in this invention, the filter element 30 is installed in the second channel 11. The oil flowing into the second channel 11 from the first channel 21 is first filtered by the filter element 30, which filters out impurities, residues and metal particles. Then, the oil flowing through the one-way valve 40 does not contain impurities, residues and metal particles. Therefore, it is not easy for the one-way valve 40 to get stuck during the reciprocating motion, and it will not cause the one-way valve 40 to fail to close properly, thus avoiding oil leakage.

[0038] In the embodiments provided by this utility model, the filler nozzle 100 has a straight-through structure.

[0039] The above-disclosed examples are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall fall within the scope of the present utility model.

Claims

1. A fuel injector, characterized in that, The system includes a body, a connector, a filter element, and a one-way valve. The second end of the connector is mounted on the first end of the body. The connector has a first channel. The body has a second channel and a third channel, which are connected. The filter element is mounted in the second channel. The one-way valve is located in the third channel and is used to control the connection or disconnection of the second and third channels. The one-way valve includes a valve core and an elastic element. The body has an insertion through hole between the second and third channels. The first end of the valve core forms an actuating end, which passes through the insertion hole. The actuating end has a through hole and a connecting channel that communicates with the second channel. The side of the actuating end has a connecting port that communicates with the connecting channel. The elastic element abuts against the valve core so that the actuating end always tends to penetrate the insert through hole and causes the valve core to close the insert through hole, thereby disconnecting the second channel and the third channel. When oil of a certain pressure is injected into the first channel, the valve core is pushed to slide towards the second end of the body, so that a part of the structure of the actuating end exits the insert through hole, and the connecting port is exposed in the third channel.

2. The filler nozzle according to claim 1, characterized in that, The connection channel opens onto the end face of the actuating end.

3. The filler nozzle according to claim 1, characterized in that, The second end of the valve core forms a mounting end, and the elastic element is fitted onto the mounting end.

4. The filler nozzle according to claim 3, characterized in that, The one-way valve also includes a first sealing ring. The valve core has a radially outwardly protruding positioning portion formed between the actuating end and the mounting end. The first sealing ring is fitted onto the actuating end and close to the positioning portion. The first sealing ring is located between the connection port and the positioning portion. The body has an abutment structure between the second channel and the third channel. The center of the abutment structure forms the insertion through hole. When the oil injection stops, the valve core is pushed away from the second end of the body by the pressure of the elastic element, so that the first sealing ring is pressed against the abutment structure, thereby disconnecting the second channel and the third channel.

5. The filler nozzle according to claim 4, characterized in that, It also includes a limiting structure, which is located in the third channel and close to the second end of the body, with one end of the elastic member abutting against the positioning part and the other end abutting against the limiting structure.

6. The filler nozzle according to claim 5, characterized in that, The limiting structure has an assembly structure protruding toward the valve core, and the other end of the elastic element is fitted onto the assembly structure.

7. The filler nozzle according to claim 4, characterized in that, The positioning part is an annular structure surrounding the valve core, and the outer side wall of the body is provided with an installation annular groove, on which a second sealing ring is installed.

8. The filler nozzle according to claim 5, characterized in that, The side of the main body has several first oil outlet holes that communicate with the third channel, and the limiting structure has a second oil outlet hole that communicates with the third channel.

9. The filler nozzle according to claim 1, characterized in that, The second end of the connector is sleeved on the first end of the body and is detachably connected to the first end of the body by means of a threaded connection. The outer side wall of the second end of the connector forms a first hexagonal structure, and the outer side wall of the body forms a second hexagonal structure. The first hexagonal structure and the second hexagonal structure are arranged adjacent to each other. The connector is detachably fitted with a protective sleeve.

10. A lubrication pump, characterized in that, Including the fuel nozzle as described in any one of claims 1-9.

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