Automatic reversing device of feeding pump

Abstract

The utility model discloses an automatic reversing device of a feeding pump. The automatic reversing device comprises a feeding pump main body and an air source, the feeding pump body is used for supporting a reversing mechanism element, the air source is used for providing air pressure for a mechanism assembly, the upper side and the lower side of the feeding pump body are provided with an automatic reversing transmission assembly and an element convenient replacement assembly, and a reversing driving switch assembly is arranged on the side of the feeding pump body. The utility model relates to the technical field of feeding pump control, and has the following beneficial effects that the automatic reversing process of the whole pump body can be completed through the automatic reversing transmission assembly and the reversing driving switch assembly, but spring parts in the automatic reversing transmission assembly are consumables, and in order to ensure the normal use of a spring, the automatic reversing driving switch assembly is not needed; according to the scheme, the automatic reversing transmission assembly can be conveniently and regularly disassembled and overhauled to maintain the service life of a spring part through the element convenient replacement assembly, so that the reversing mechanism can operate for a long time, and the automatic reversing function of the mechanism can be smoothly achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding pump control, in particular to an automatic reversing device for a feeding pump. Background Art

[0002] The reversing valve is a valve structure that controls the reversing movement of the pump body. However, during the use of most reversing valves, most of them adopt hydraulic methods to change the running direction of the piston inside the reversing valve, thereby changing the running direction of the pump body piston. The hydraulic reversing valve needs to be manually controlled and cannot automatically reverse, which is very inconvenient. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: an automatic reversing device for a feeding pump, comprising a feeding pump body and an air source; the feeding pump body is used to support the reversing mechanism components, the air source is used to provide air pressure for the mechanism components, the upper and lower sides of the feeding pump body are provided with automatic reversing transmission components and component convenient replacement components, and the side of the feeding pump body is provided with a reversing drive switch component,

[0004] Among them, the automatic reversing transmission assembly includes: a piston groove, a pump body piston, an air inlet, an exhaust duct, a buckle groove, a sealing ring, a blocking buckle, a blocking cap and a spring;

[0005] The piston groove is provided inside the feeding pump body, the air inlet and exhaust passages are provided on the upper and lower sides of the feeding pump body, the exhaust passages are provided on the upper and lower sides of the feeding pump body and are connected to the buckle groove, the pump body piston is installed in the piston groove, the blocking cap is inserted into the buckle groove, the sealing ring is installed on the side of the buckle groove, the blocking buckle is installed in the buckle groove and extends into the piston groove, the spring is sleeved above the blocking buckle and pressed against the bottom of the blocking cap, and the internal air pressure change of the reversing mechanism can be controlled by this component.

[0006] Preferably, the component convenient replacement assembly comprises: a longitudinal buckle slot, a transverse buckle slot, a locking buckle, a switch buckle and a buckle spring;

[0007] The longitudinal buckle groove and the transverse buckle groove are arranged on the upper and lower sides of the feeding pump body and are connected to each other. The locking buckle is installed on the sealing cap and inserted into the longitudinal buckle groove. The switch buckle is installed in the transverse buckle groove. The buckle spring is installed in the transverse buckle groove and abuts against the side of the switch buckle. The sealing cap can be easily disassembled through this component.

[0008] Preferably, the reversing drive switch assembly comprises: a reversing valve box, a lifting slot, an upper cavity, a lower cavity, a lifting piston column, a first contact sensing switch, a second contact sensing switch, an intake branch pipe, an upper electronic valve and a lower electronic valve;

[0009] The reversing valve box is installed on the side of the feeding pump body, the lifting groove is opened in the reversing valve box, the upper cavity and the lower cavity are distributed on the upper and lower sides of the lifting groove and are connected to the air inlet duct, the lifting piston column is installed in the lifting groove, the first contact sensing switch is installed above the lifting groove, the second contact sensing switch is installed below the lifting groove, the upper electronic valve is installed above the feeding pump body and is connected to the top of the piston groove, the lower electronic valve is installed below the feeding pump body and is connected to the bottom of the piston groove. Through this component, the pump body can be driven and controlled to perform automatic reversing.

[0010] Preferably, the first contact sensing switch, the upper electronic valve, the second contact sensing switch and the lower electronic valve are signal-connected via a sensor.

[0011] Preferably, an observation mirror is provided on the reversing valve box.

[0012] Preferably, the air intake branch pipe, the upper electronic valve and the lower electronic valve are connected to the air source during operation.

[0013] Beneficial Effects

[0014] The automatic reversing device of the feeding pump has the following beneficial effects:

[0015] In this case, the automatic reversing process of the entire pump body can be completed through the automatic reversing transmission assembly and the reversing drive switch assembly. However, the spring parts in the automatic reversing transmission assembly are consumables. In order to ensure the normal use of the spring, this case uses convenient component replacement assemblies, which can facilitate regular disassembly and maintenance of the automatic reversing transmission assembly to maintain the working life of the spring parts, so that the reversing mechanism can operate for a long time, thereby smoothly realizing the automatic reversing function of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1-2 It is a schematic diagram of the front cross-sectional structure of an automatic reversing device for a feeding pump described in the utility model.

[0017] Figure 3 This is a schematic diagram of the main appearance structure of an automatic reversing device for a feeding pump described in the utility model.

[0018] Figure 4 It is a partially enlarged schematic diagram of an automatic reversing transmission component of an automatic reversing device for a feeding pump described in the utility model.

[0019] Figure 5 It is a partially enlarged schematic diagram of a component convenient replacement assembly of an automatic reversing device for a feeding pump described in the utility model.

[0020] In the figure: 1. Feeding pump body; 2. Air source; 3. Piston groove; 4. Pump piston; 5. Inlet duct; 6. Exhaust duct; 7. Buckle groove; 8. Sealing ring; 9. Blocking buckle; 10. Blocking cap; 11. Spring; 12. Longitudinal buckle groove; 13. Horizontal buckle groove; 14. Locking buckle; 15. Switch buckle; 16. Buckle spring; 17. Reversing valve box; 18. Lifting groove; 19. Upper cavity; 20. Lower cavity; 21. Lifting piston rod; 22. First contact induction switch; 23. Second contact induction switch; 24. Inlet branch pipe; 25. Upper electronic valve; 26. Lower electronic valve; DETAILED DESCRIPTION

[0021] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0022] See also Figure 1-5 , the utility model provides a technical solution.

[0023] An automatic reversing device for a feeding pump comprises a feeding pump body 1 and an air source 2; the feeding pump body 1 is used to support the reversing mechanism components, the air source 2 is used to provide air pressure for the mechanism components, the upper and lower sides of the feeding pump body 1 are provided with automatic reversing transmission components and component convenient replacement components, and the side of the feeding pump body 1 is provided with a reversing drive switch component.

[0024] The automatic reversing transmission assembly includes: a piston groove 3, a pump piston 4, an air inlet 5, an exhaust duct 6, a buckle groove 7, a sealing ring 8, a blocking buckle 9, a blocking cap 10 and a spring 11;

[0025] The piston groove 3 is opened inside the feeding pump body 1, the air inlet duct 5 and the exhaust duct 6 are opened on the upper and lower sides of the feeding pump body 1, the exhaust duct 6 is opened on the upper and lower sides of the feeding pump body 1 and connected to the buckle groove 7, the pump body piston 4 is installed in the piston groove 3, the blocking cap 10 is inserted into the buckle groove 7, the sealing ring 8 is installed on the side of the buckle groove 7, the blocking buckle 9 is installed in the buckle groove 7 and extends into the piston groove 3, and the spring 11 is mounted on the top of the blocking buckle 9 and pressed against the bottom of the blocking cap 10.

[0026] It should be noted that after the pump body piston 4 starts to move and presses on the blocking buckle 9, the blocking buckle 9 moves upward, so that the upper or lower exhaust duct 6 is connected to the intake duct 5, thereby reducing the air pressure and generating an air pressure difference.

[0027] As a preferred embodiment, further, the component convenient replacement assembly comprises: a longitudinal buckle groove 12, a transverse buckle groove 13, a locking buckle 14, a switch buckle 15 and a buckle spring 16;

[0028] The longitudinal snap groove 12 and the transverse snap groove 13 are arranged on the upper and lower sides of the feeding pump body 1 and are connected to each other. The locking snap 14 is installed on the sealing cap 10 and inserted into the longitudinal snap groove 12. The switch snap 15 is installed in the transverse snap groove 13. The snap spring 16 is installed in the transverse snap groove 13 and abuts against the side of the switch snap 15.

[0029] It should be noted that when the blocking cap 10 needs to be disassembled for maintenance, the switch buckle 15 can be pulled laterally to release the engagement between the switch buckle 15 and the locking buckle 14, and then the blocking cap 10 can be removed.

[0030] As a preferred embodiment, further, the reversing drive switch assembly includes: a reversing valve box 17, a lifting slot 18, an upper cavity 19, a lower cavity 20, a lifting piston rod 21, a first contact sensing switch 22, a second contact sensing switch 23, an intake branch pipe 24, an upper electronic valve 25 and a lower electronic valve 26;

[0031] The reversing valve box 17 is installed on the side of the feeding pump body 1, the lifting groove 18 is opened in the reversing valve box 17, the upper cavity 19 and the lower cavity 20 are distributed on the upper and lower sides of the lifting groove 18 and connected to the air inlet duct 5, the lifting piston column 21 is installed in the lifting groove 18, the first contact sensing switch 22 is installed above the lifting groove 18, and the second contact sensing switch 23 is installed below the lifting groove 18. The upper electronic valve 25 is installed above the feeding pump body 1 and connected to the top of the piston groove 3, and the lower electronic valve 26 is installed below the feeding pump body 1 and connected to the bottom of the piston groove 3.

[0032] It should be noted that after the upper exhaust duct 6 is connected with the air inlet duct 5, the air pressure in the upper cavity 19 will be reduced, so that the lifting piston column 21 will move upward in the lifting groove 18. When the lifting piston column 21 touches the first contact sensing switch 22, the upper electronic valve 25 will be started and the lower electronic valve 26 will be closed. Then the pump body piston 4 will be pushed downward, and then the snap spring 16 will block the snap 9 to re-block the exhaust duct 6 and the air inlet duct 5, so that the pressure difference between the upper cavity 19 and the lower cavity 20 will be restored to be equal. Then the descending pump body piston 4 will touch the blocking snap 9 on the bottom side, thereby reducing the air pressure in the lower cavity 20. At the same time, the lifting piston column 21 starts to descend and contacts the second contact sensing switch 23, so that the upper electronic valve 25 is closed and the lower electronic valve 26 is opened, and then the pump body piston 4 is pushed to move upward. In summary, the above method can complete the automatic control of the telescopic reversing of the pump body.

[0033] Preferably, further, the first contact sensing switch 22, the upper electronic valve 25, the second contact sensing switch 23 and the lower electronic valve 26 are signal-connected via a sensor.

[0034] It should be noted that the sensing element connected by the sensor can more sensitively automatically control the opening and closing of the upper electronic valve 25 and the lower electronic valve 26 .

[0035] Preferably, further, the reversing valve box 17 is provided with an observation mirror.

[0036] It should be noted that the observation mirror is used to observe the situation of the lifting piston rod 21 inside the reversing valve box 17.

[0037] Preferably, further, the air intake branch pipe 24, the upper electronic valve 25 and the lower electronic valve 26 are connected to the air source 2 during operation.

[0038] It should be noted that the gas source 2 can provide stable air pressure for the air intake branch pipe 24, the upper electronic valve 25 and the lower electronic valve 26 at the same time, ensuring that the piston movement of the pump body and the control of the reversing mechanism can proceed smoothly.

[0039] How to operate

[0040] When the pump body starts working, after the air source 2 is connected, by opening the lower electronic valve 26, the pump body piston 4 rises and touches the sealing buckle 9 of the automatic reversing transmission assembly, the entire pump body reversing system can automatically start running without additional operation. When the pump body needs to be shut down, it is only necessary to close the upper electronic valve 25 and the upper electronic valve 25 at the same time to cut off the airflow flowing into the piston groove 3.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic reversing device for a feeding pump, comprising a feeding pump body and an air source; the feeding pump body is used to support the reversing mechanism components, and the air source is used to provide air pressure for the mechanism components, characterized in that The upper and lower sides of the feeding pump body are provided with automatic reversing transmission components and component convenient replacement components, and the side of the feeding pump body is provided with a reversing drive switch component. Among them, the automatic reversing transmission assembly includes: a piston groove, a pump body piston, an air inlet, an exhaust duct, a buckle groove, a sealing ring, a blocking buckle, a blocking cap and a spring; The piston groove is opened inside the feeding pump body, the air inlet and exhaust passages are opened on the upper and lower sides of the feeding pump body, the exhaust passages are opened on the upper and lower sides of the feeding pump body and connected to the buckle groove, the pump body piston is installed in the piston groove, the blocking cap is inserted into the buckle groove, the sealing ring is installed on the side of the buckle groove, the blocking buckle is installed in the buckle groove and extends into the piston groove, and the spring is sleeved above the blocking buckle and pressed against the bottom of the blocking cap.

2. The automatic reversing device for a feeding pump according to claim 1, characterized in that: The component convenient replacement assembly comprises: a longitudinal buckle slot, a transverse buckle slot, a locking buckle, a switch buckle and a buckle spring; The longitudinal buckle groove and the transverse buckle groove are arranged on the upper and lower sides of the feeding pump body and are connected to each other. The locking buckle is installed on the sealing cap and inserted into the longitudinal buckle groove. The switch buckle is installed in the transverse buckle groove. The buckle spring is installed in the transverse buckle groove and abuts against the side of the switch buckle.

3. The automatic reversing device for a feeding pump according to claim 1, characterized in that: The reversing drive switch assembly includes: a reversing valve box, a lifting slot, an upper cavity, a lower cavity, a lifting piston column, a first contact sensing switch, a second contact sensing switch, an intake branch pipe, an upper electronic valve, and a lower electronic valve; The reversing valve box is installed on the side of the feeding pump body, the lifting groove is opened in the reversing valve box, the upper cavity and the lower cavity are distributed on the upper and lower sides of the lifting groove and are connected to the air inlet duct, the lifting piston column is installed in the lifting groove, the first contact sensing switch is installed above the lifting groove, the second contact sensing switch is installed below the lifting groove, the upper electronic valve is installed above the feeding pump body and is connected to the top of the piston groove, and the lower electronic valve is installed below the feeding pump body and is connected to the bottom of the piston groove.

4. The automatic reversing device for a feeding pump according to claim 3, characterized in that: The first contact sensing switch, the upper electronic valve, the second contact sensing switch and the lower electronic valve are signal-connected via a sensor.

5. The automatic reversing device for a feeding pump according to claim 3, characterized in that: An observation mirror is arranged on the reversing valve box.

6. The automatic reversing device for a feeding pump according to claim 3, characterized in that: The air intake branch pipe, the upper electronic valve and the lower electronic valve are connected to the air source during operation.

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