Pneumatic pump with sealing structure

Abstract

The utility model discloses a pneumatic pump with a sealing structure, which comprises an oil tank and an oil tank cover, a pneumatic pump component is arranged on the oil tank cover, a sealing component is arranged between the oil tank and the oil tank cover, the sealing component comprises a supporting table and a sealing edge, a sealing notch is formed between the supporting table and the oil tank cover, and the sealing edge is arranged on the supporting table. A sealing rubber strip is arranged between the sealing notch and the sealing edge, the sealing rubber strip is detachably connected with the sealing notch, the sealing notch is further provided with a limiting part used for limiting the sealing rubber strip to be separated from the sealing notch, and the supporting table, the sealing rubber strip and the sealing edge are combined to seal the oil tank and the oil tank cover.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic pumps, in particular to a pneumatic pump with a sealing structure. Background Art

[0002] Pneumatic pumps, also known as pneumatic oil pumps or pneumatic hydraulic pumps, are pumps that use compressed air as a power source to transport liquids and are widely used in the industrial field. Since pneumatic pumps are used in many scenarios and the structures of pneumatic pumps required in different scenarios are also different, in order to make the pneumatic pump have a better sealing effect, it is not easy for the lubricating oil to overflow from between the oil tank and the oil tank cover when the oil tank is filled with lubricating oil. The existing pneumatic pumps with better sealing performance use a sealing structure between the oil tank cover and the oil tank. Common sealing structures include a convex edge in one of the oil tank or the oil tank cover, and a sealing notch in the other. When the oil tank and the oil tank cover are closed, the convex edge can be embedded in the sealing notch and sealed to form a seal, or a fixed sealing gasket is used in one of the oil tank and the oil tank cover. The oil tank or oil tank cover with a fixed sealing gasket cannot remove the sealing gasket, which is not convenient for replacing the sealing gasket, and the sealing gasket is easily damaged after being soaked in lubricating oil. Failure to replace the sealing gasket in time will easily affect the sealing performance. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a pneumatic pump with a sealing structure. The pneumatic pump has a good sealing effect and the sealing strip is easy to disassemble and assemble.

[0004] To achieve the above-mentioned purpose, the utility model provides a pneumatic pump with a sealing structure, including a fuel tank and a fuel tank cover, a pneumatic pump assembly is arranged on the fuel tank cover, a sealing assembly is arranged between the fuel tank and the fuel tank cover, the sealing assembly includes a support platform and a sealing edge, a sealing notch is formed between the support platform and the fuel tank cover, a sealing strip is arranged between the sealing notch and the sealing edge, the sealing strip is detachably connected to the sealing notch, and the sealing notch is also provided with a limiting portion for limiting the sealing strip from escaping from the sealing notch, and the support platform, the sealing strip and the sealing edge are combined to seal the fuel tank and the fuel tank cover.

[0005] The effect that can be produced by adopting the above technical scheme is: the pneumatic pump assembly is provided so that the pump body can use compressed air as a power source to transport liquid. Since there will be a large amount of grease in the oil tank of the pneumatic pump, and the oil tank and the oil tank cover are detachably connected, the grease is easy to seep out from between the oil tank and the oil tank cover. Therefore, a sealing assembly is used to seal them. A sealing strip is provided to clamp the oil tank and the oil tank cover so that the three can be sealed together to prevent the oil in the oil tank from seeping out. The design of the sealing assembly ensures the sealing between the oil tank and the oil tank cover, reduces the risk of fuel leakage, and the sealing strip is placed between the oil tank and the oil tank cover so that it will not be exposed to the outside world and is not easy to be damaged. Without affecting the aesthetics, a sealing notch and a sealing edge are provided, and a limiting portion is provided in the sealing notch. The limiting portion can limit the sealing strip from escaping from the sealing notch to ensure the continuity and integrity of the seal. The sealing notch design between the support platform and the fuel tank cover makes it more convenient to install and disassemble the sealing component, thereby improving the installation efficiency. The detachable design of the sealing component makes it easier to check the sealing effect, which helps to discover and solve problems in a timely manner. Since the sealing strip is elastic, technical personnel in this field can change the sealing strength by adjusting the pressure of the fuel tank and the fuel tank cover on the sealing strip. The structure is simple and easy to disassemble and assemble, which can improve the sealing effect and service life of the pneumatic pump.

[0006] The utility model further provides that: the limiting portion is a limiting lug, the sealing notch is evenly provided with at least one limiting lug circumferentially, and the sealing strip is circumferentially provided in the sealing notch and is interference fit with the limiting lug.

[0007] The effect that can be produced by adopting the above-mentioned technical scheme is: adopting at least one limiting lug evenly distributed circumferentially at the sealing notch position can enable the sealing strip to be clamped between the sealing notch and the limiting lug during installation, and the at least one limiting lug evenly distributed circumferentially can cooperate with the sealing notch to limit the sealing strip from multiple angles at the same time, thereby preventing the sealing strip from falling out of the sealing notch, and also preventing the sealing strip from deviating from the sealing position. After installation, it is more stable and has a better sealing effect.

[0008] The utility model is further configured as follows: a plurality of connection holes are evenly distributed circumferentially on the support platform, and bolts threadedly connected to the connection holes are arranged on the sealing edge at positions corresponding to the connection holes.

[0009] The effect that can be produced by adopting the above technical solution is: the setting of multiple connecting holes can make the connected fuel tank and fuel tank cover more stable and have a better sealing effect. The threaded connection method of the bolts makes the connecting holes easy to disassemble and reinstall, which is convenient for daily maintenance and component replacement. The structure is simple and easy to operate.

[0010] The utility model is further provided with: the pneumatic pump assembly includes an oil inlet channel, one end of the oil inlet channel is fixedly connected to the oil tank cover, and the other end is placed in the oil tank, and the oil inlet channel is detachably connected to a filter screen at one end facing the oil tank.

[0011] The effect that can be produced by adopting the above technical scheme is: when the oil inlet channel absorbs oil, the filter arranged on the oil inlet channel can filter impurities in the oil and prevent impurities from entering the oil inlet channel and causing blockage thereof, thereby improving the transmission efficiency of the oil and fat, and the filter arranged is detachable, making it more convenient to replace the filter.

[0012] The utility model is further configured that: a protective wall is circumferentially extended on the outer peripheral wall of the fuel tank cover toward the fuel tank.

[0013] The effect that can be produced by adopting the above-mentioned technical scheme is: by setting a protective wall on the outer wall of the fuel tank cap toward the fuel tank, the sealing structure between the fuel tank cap and the fuel tank can be protected. The protective wall can reduce the probability of external impurities or liquids entering the fuel tank and keep the fuel in the fuel tank clean. In the event of a collision, the protective wall can provide additional protection and reduce the risk of damage to the fuel tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A cross-sectional view of an embodiment of the utility model;

[0015] Figure 2 It is a three-dimensional diagram of the fuel tank cover of the utility model embodiment;

[0016] Figure 3 This is a structural diagram of the fuel tank of an embodiment of the utility model;

[0017] Figure 4 This is a cross-sectional view of the sealing assembly in use according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] An embodiment of a pneumatic pump with a sealing structure of the present invention is shown in the figure. In order to achieve the above-mentioned purpose, the present invention provides a pneumatic pump with a sealing structure, including a fuel tank 1 and a fuel tank cover 2, a pneumatic pump assembly is arranged on the fuel tank cover 2, a sealing assembly 3 is arranged between the fuel tank 1 and the fuel tank cover 2, the sealing assembly 3 includes a support platform 31 and a sealing edge 32, a sealing notch 33 is formed between the support platform 31 and the fuel tank cover 2, a sealing strip 34 is arranged between the sealing notch 33 and the sealing edge 32, the sealing strip 34 is detachably connected to the sealing notch 33, the sealing notch 33 is also provided with a limiting portion for limiting the sealing strip 34 from escaping from the sealing notch 33, the support platform 3 1. The combination of the sealing strip 34 and the sealing edge 32 seals the fuel tank 1 and the fuel tank cover 2. The pneumatic pump assembly is provided so that the pump body can use compressed air as a power source to transport liquid. Since there is a large amount of grease in the fuel tank 1 of the pneumatic pump, and the fuel tank 1 and the fuel tank cover 2 are detachably connected, the grease is easy to seep out from between the fuel tank 1 and the fuel tank cover 2. Therefore, the sealing assembly 3 is used to seal them. The sealing strip 34 is provided to cooperate with the fuel tank 1 and the fuel tank cover 2 to clamp them, so that the three can cooperate to seal and prevent the oil in the fuel tank 1 from seeping out. The design of the sealing assembly 3 ensures the sealing between the fuel tank 1 and the fuel tank cover 2, reduces the risk of fuel leakage, and the sealing strip 34 is placed between the fuel tank 1 and the fuel tank cover 2. The sealing gap 33 and the sealing edge 32 are not exposed to the outside world, are not easily damaged, and do not affect the appearance. A sealing gap 33 and a sealing edge 32 are set, and a limiting part is set in the sealing gap 33. The limiting part can limit the sealing strip 34 from escaping from the sealing gap 33 to ensure the continuity and integrity of the seal. The design of the sealing gap 33 between the support platform 31 and the fuel tank cover 2 makes it easier to install and remove the sealing component 3, and improves the installation efficiency. The detachable design of the sealing component 3 makes it easier to check the sealing effect, which helps to find and solve problems in time. Since the sealing strip 34 is elastic, technicians in this field can change the sealing strength by adjusting the pressure of the fuel tank 1 and the fuel tank cover 2 on the sealing strip 34. The structure is simple, easy to disassemble and install, and can The sealing effect and service life of the pneumatic pump can be improved; when the oil tank cover 2 and the oil tank 1 of the pneumatic pump are installed, since the sealing notch 33 is set on the oil tank cover 2 in this solution, it is necessary for technicians in this field to press the sealing strip 34 into the sealing notch 33 first, so that the limiting lug 35 and the oil tank cover 2 clamp and limit the sealing strip 34. At this time, since the sealing strip 34 is elastic and can be interference-fitted with the limiting lug 35 and the oil tank cover 2, it is not easy to fall out. The technicians in this field need to press the sealing strip 34 from all angles to ensure that the sealing strip 34 is completely clamped in the sealing notch 33, and finally close the oil tank cover 2 and the oil tank 1 according to the corresponding positions, and fix the two together with the bolts 5;The limiting portion is a limiting lug 35, and the sealing notch 33 is evenly provided with at least one limiting lug 35 in the circumferential direction. The sealing strip 34 is circumferentially arranged in the sealing notch 33 and is interference-fitted with the limiting lug 35. The use of at least one limiting lug 35 evenly distributed circumferentially at the position of the sealing notch 33 can enable the sealing strip 34 to be clamped between the sealing notch 33 and the limiting lug 35 during installation, and the at least one limiting lug 35 evenly distributed circumferentially can cooperate with the sealing notch 33 from multiple angles at the same time to limit the sealing strip 34, thereby preventing the sealing strip 34 from escaping from the sealing notch 33, and also preventing the sealing strip 34 from deviating from the sealing position; a plurality of connecting holes 4 are evenly distributed circumferentially on the support platform 31, and bolts 5 threadedly connected to the connecting holes 4 are provided at positions corresponding to the connecting holes 4 on the sealing edge 32. The use of a plurality of connecting holes 4 can make the connected fuel tank 1 and the fuel tank cover 2 more stable and have a better sealing effect. The threaded connection method of the bolt 5 The connection hole 4 is easy to disassemble and reinstall, which is convenient for daily maintenance and component replacement; the pneumatic pump assembly includes an oil inlet channel 6, one end of which is fixedly connected to the fuel tank cover 2, and the other end is placed in the fuel tank 1. The oil inlet channel 6 is detachably connected to a filter screen 7 at one end facing the fuel tank 1. When the oil inlet channel 6 absorbs oil, the filter screen 7 arranged on the oil inlet channel 6 can filter impurities in the grease to prevent impurities from entering the oil inlet channel 6 and clogging it, thereby improving the transmission efficiency of the grease. The filter screen 7 is detachable, which makes it more convenient to replace the filter screen 7; the outer peripheral wall of the fuel tank cover 2 is circumferentially extended toward the fuel tank 1. The protective wall 8 is arranged on the outer peripheral wall of the fuel tank cover 2 toward the fuel tank 1 to protect the sealing structure between the fuel tank cover 2 and the fuel tank 1. The protective wall 8 can reduce the probability of external impurities or liquids entering the fuel tank 1, keep the fuel in the fuel tank 1 clean, and in the event of a collision, the protective wall 8 can provide additional protection to reduce the risk of damage to the fuel tank 1. ;

[0019] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A pneumatic pump with a sealing structure, comprising a fuel tank and a fuel tank cover, wherein a pneumatic pump assembly is arranged on the fuel tank cover, characterized in that: A sealing assembly is arranged between the fuel tank and the fuel tank cover, and the sealing assembly includes a support platform and a sealing edge. A sealing notch is formed between the support platform and the fuel tank cover, and a sealing strip is arranged between the sealing notch and the sealing edge. The sealing strip and the sealing notch are detachably connected, and the sealing notch is also provided with a limiting portion for limiting the sealing strip from escaping from the sealing notch. The support platform, the sealing strip and the sealing edge are combined to seal the fuel tank and the fuel tank cover.

2. The pneumatic pump with a sealing structure according to claim 1, characterized in that: The limiting portion is a limiting lug, the sealing notch is evenly provided with at least one limiting lug in the circumferential direction, and the sealing strip is circumferentially provided in the sealing notch and is interference-fitted with the limiting lug.

3. The pneumatic pump with a sealing structure according to claim 1, characterized in that: The support platform is evenly distributed with a plurality of connection holes in the circumferential direction, and bolts threadedly connected to the connection holes are arranged on the sealing edge at positions corresponding to the connection holes.

4. The pneumatic pump with a sealing structure according to claim 1, characterized in that: The pneumatic pump assembly includes an oil inlet channel, one end of which is fixedly connected to the oil tank cover and the other end is placed in the oil tank. The oil inlet channel is detachably connected to a filter screen at one end facing the oil tank.

5. The pneumatic pump with a sealing structure according to claim 1, characterized in that: The outer peripheral wall of the fuel tank cover is provided with a protective wall extending circumferentially toward the fuel tank.

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