CN220769653U - Compact combined pump - Google Patents

Abstract

The utility model discloses a compact combined pump, which comprises a valve seat, an oil tank and a motor pump assembly, wherein an oil duct a, an oil duct b, an oil duct c, an oil return channel, a lifting working port, a descending working port, a first valve cavity and a second valve cavity which is perpendicular to the first valve cavity are arranged in the valve seat, a manual valve rod mechanism is arranged in the first valve cavity, a reversing valve core is arranged in the second valve cavity, an operating rod is arranged on the valve seat, the oil duct a is communicated with the first valve cavity and the second valve cavity, a first one-way valve structure is arranged in the oil duct a, the oil duct b is communicated with the oil tank and the first valve cavity, a one-way blocking ball is arranged between the first valve cavity and the oil duct b, the oil duct c is communicated with the motor pump assembly, the oil return channel is communicated with the oil tank, the other end of the oil return channel penetrates through the peripheral wall of the reversing valve core, and the oil return channel is switched to conduct the lifting working port or the descending working port through rotating the reversing valve core.

Description

Compact combined pump

Technical Field

The utility model relates to the technical field of combination pumps, in particular to a compact combination pump.

Background

The existing flashlight combination pump has two connection modes: (1) The manual pump and the electric pump are respectively fixed on the same bracket and are connected through an oil pipe, so that the manual and electric integrated type is realized; (2) The manual pump is connected with the electric pump through a transition valve block, and an oil way is arranged in the valve block, so that manual and electric connection is realized.

However, the first connection mode of the flashlight combination pump has the following disadvantages: the oil pipe is large in size and weight, is used in places with large installation space and unlimited positions, is connected with the electric pump through the oil pipe, is fixed on the same support, cannot be too small, occupies a large volume, and is additionally provided with a support, so that the weight is increased.

On the other hand, the second connection mode of the flashlight combination pump has the following disadvantages: the oil leakage risk is high, and the processing degree of difficulty is big, simultaneously owing to connect through the transition valve plate between manual pump and the electric pump, fixes respectively on the valve plate, has the oil circuit in the valve plate, and the valve plate needs to increase sealed design with the place that manual pump and electric pump are connected, and the processing degree of difficulty is big, also can increase the oil leakage risk simultaneously.

There is therefore a need for improvements over existing flashlight combination pumps.

Disclosure of Invention

The utility model aims to provide a compact combined pump which has high integration level, small volume and good installation flexibility; in addition, the oil filling amount of the oil can be judged, and the oil leakage of the oil pump can be avoided.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a compact combination pump, including the disk seat and oil tank and the motor pump assembly of setting on the disk seat, be equipped with oil duct a in the disk seat, oil duct b, oil duct c, the oil return passageway, lift the working opening, decline the working opening, first valve pocket and the second valve pocket that sets up perpendicularly with first valve pocket, be equipped with manual valve rod in the first valve pocket, be equipped with the manual lever mechanism of driving the reciprocating motion of manual valve rod along first valve pocket on the disk seat, be equipped with the switching-over case in the second valve pocket, be equipped with the action bars subassembly of driving the reciprocating rotation of switching-over case on the disk seat, oil duct a communicates first valve pocket and second valve pocket, be equipped with first check valve structure in the oil duct a, oil duct b communicates oil tank and first valve pocket, be equipped with one-way shutoff ball between first valve pocket and the oil duct b, oil duct c communicates motor pump assembly and oil duct a, oil return passageway's one end communicates in the oil tank, oil return passageway's the other end runs through the perisporium of switching-over the switching-over valve case, switch-over oil return passageway switches over and lifts the working opening or descends the working opening, can switch over a and lift the working opening simultaneously.

Further, the periphery cover of manual valve rod is equipped with the piston, separates into upper valve pocket and lower valve pocket through the piston with first valve pocket seal, and lower valve pocket is linked together with oil duct a, and the position that first valve pocket corresponds the upper valve pocket is equipped with the relief valve, and the air in the first valve pocket can discharge outside the disk seat through the relief valve while the relief valve can separate hydraulic oil and pass through, is equipped with the inner chamber way that feeds through upper valve pocket and lower valve pocket in the manual valve rod, is equipped with the second check valve structure in the inner chamber way, and the second check valve structure includes the second bulb and supports the second spring of locating on the second bulb, and the second bulb sets up in towards lower valve pocket one side, and elasticity sets up in towards upper valve pocket one side.

Further, the first check valve structure comprises a first ball head, a first elastic piece and a first plug which are sequentially arranged, the oil duct a is provided with a step part, and the first ball head is propped against the step part under the elastic action of the first elastic piece.

Further, the motor pump assembly comprises a motor, a five-plunger pump core and a relay assembly, wherein the output end of the motor is connected with the five-plunger pump core, and the motor is electrically connected with the relay assembly.

Further, be equipped with the lid that ventilates on the oil tank and close the piece, the lid that ventilates is including inserting pipe, connecting cover, filling body and oil pipe, and the oil tank is equipped with the socket, and the cooperation of connecting cover and socket will insert the pipe and assemble in socket department, be equipped with the sealing member between inserting pipe and the outer terminal surface of socket, the one end intercommunication oil tank of inserting pipe is inside, and the oil pipe is connected to the other end of inserting pipe, the inside filling body that is equipped with of inserting pipe, the air in the oil tank can flow towards the oil pipe outwards through the filling body, but the hydraulic oil in the oil tank can't pass through the filling body.

Further, an oil scale extending into the oil tank is arranged at the inner end of the insertion pipe, and the oil liquid amount is judged through the oil scale.

In summary, the utility model has the following beneficial effects:

1. the manual pump and the motor pump assembly are integrated on the valve seat and share the oil way system, the motor pump assembly is perpendicular to the manual pump, space can be greatly saved, the problems that in the prior art, the motor pump assembly and the manual pump are horizontally arranged, the motor pump assembly and the manual pump are fixed through the transition plate, the space cannot be fully utilized, and the volume is large are solved.

2. According to the utility model, through the design of the ventilation cover piece, the oil leakage problem can be solved, and the quantity of hydraulic oil in the oil tank can be detected.

Drawings

Fig. 1 is a schematic view of the overall structure of the present utility model.

Fig. 2 is a schematic view of an oil passage inside a valve seat of the present utility model.

Fig. 3 is a schematic view of the motor pump assembly of the present utility model.

Fig. 4 is a schematic structural view of the ventilation cover of the present utility model.

Fig. 5 is an enlarged view at a of the present utility model.

Fig. 6 is a schematic structural view of the lever assembly of the present utility model.

In the figure: 10. a valve seat; 11. an oil passage a; 12. an oil passage b; 121. one-way blocking ball; 13. an oil passage c; 14. an oil return passage; 15. lifting a working port; 16. lowering the working port; 17. a first valve chamber; 171. a manual valve stem; 172. a piston; 173. an upper valve cavity; 174. a lower valve cavity; 175. a safety valve; 18. a second valve chamber; 181. a reversing valve core; 19. an arc-shaped groove; 20. an oil tank; 21. a ventilation cover; 22. a connecting pipe is inserted; 23. a connection cover; 24. a filler; 25. an oil pipe; 26. a socket part; 27. a seal; 28. an oil scale; 30. a motor pump assembly; 31. a motor; 32. five plunger pump cores; 33. a relay assembly; 40. a manual lever mechanism; 50. a lever assembly; 51. a pin shaft; 52. a rotating shaft; 53. a rotating block; 54. an operation lever; 60. a first one-way valve structure; 70. a second one-way valve structure.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a compact combination pump includes a valve seat 10, and an oil tank 20 and a motor pump assembly 30 provided on the valve seat 10, which constitute the basic structure of the present utility model.

The valve seat 10 is internally provided with an oil duct a11, an oil duct b12, an oil duct c13, an oil return passage 14, a lifting working port 15, a descending working port 16, a first valve cavity 17 and a second valve cavity 18 which is perpendicular to the first valve cavity 17, the first valve cavity 17 is internally provided with a manual valve rod 171, the valve seat 10 is internally provided with a manual rod mechanism 40 which drives the manual valve rod 171 to reciprocate along the first valve cavity 17, the second valve cavity 18 is internally provided with a reversing valve core 181, the valve seat 10 is internally provided with an operating rod assembly 50 which drives the reversing valve core 181 to reciprocate, the oil duct a11 is communicated with the first valve cavity 17 and the second valve cavity 18, the oil duct a11 is internally provided with a first one-way valve structure 60, the oil duct b12 is communicated with the oil tank 20 and the first valve cavity 17, a one-way blocking ball 121 is arranged between the first valve cavity 17 and the oil duct b12, the oil duct c13 is communicated with the motor pump assembly 30 and the oil duct a11, one end of the oil return passage 14 is communicated with the oil tank 20, the other end of the oil return passage 14 penetrates through the peripheral wall of the reversing valve core 181, and the reversing valve core 181 is rotated to switch the oil return passage 14 to lift the lifting working port 15 or the descending working port 16, and the oil duct a11 can be switched to conduct the lifting working port 15 or the lifting working port 16 by rotating the reversing valve core 181.

The outer periphery of the manual valve rod 171 is sleeved with a piston 172, the first valve cavity 17 is hermetically separated into an upper valve cavity 173 and a lower valve cavity 174 by the piston 172, the lower valve cavity 174 is communicated with the oil duct a11, an arc-shaped groove 19 communicated with the upper valve cavity 173 is arranged at a position of the valve seat 10 corresponding to the upper valve cavity 173, a safety valve 175 is arranged at a position of the first valve cavity 17 corresponding to the upper valve cavity 173, and air in the first valve cavity 17 can be discharged outside the valve seat 10 through the safety valve 175 while the safety valve 175 can prevent hydraulic oil from passing through.

The operating rod assembly 50 comprises a pin shaft 51, a rotating shaft 52, a rotating block 53 and an operating rod 54, the rotating block 53 is rotatably arranged on the valve seat 10 through the rotating shaft 52, the non-center of the rotating block 53 is connected with the pin shaft 51, the other end of the pin shaft 51 penetrates through the arc groove 19 to be connected with the manual valve rod 171, the arc width of the arc groove 19 is slightly larger than the outer diameter of the manual valve rod 171, the upper valve cavity 173 is communicated with the inner cavity of the oil tank 20 through the arc groove 19, the rotating block 53 is arranged in the oil tank 20, the rotating shaft 52 extends out of the valve seat 10 relative to the other side of the oil tank 20 and is connected with the operating rod 54, the arc track of the arc groove 19 is matched with the rotating track of the pin shaft 51, the rotating block 53 is driven to rotate through rotating the operating rod 54, the rotating block 53 drives the pin shaft 51 to rotate with the rotating shaft 52 as the rotating shaft center and drives the manual valve rod 171 to move in the first valve cavity 17, and manual oil polishing is achieved.

The manual valve rod 171 is internally provided with an inner cavity channel which is communicated with the upper valve cavity 173 and the lower valve cavity 174, the inner cavity channel is internally provided with a second one-way valve structure 70, the second one-way valve structure 70 comprises a second ball head and a second spring which is propped against the second ball head, the second ball head is arranged on one side facing the lower valve cavity 174, and the second ball head is elastically arranged on one side facing the upper valve cavity 173.

The first check valve structure 60 includes a first ball, a first elastic element, and a first plug that are sequentially disposed, the oil passage a11 is provided with a step portion, and the first ball is abutted to the step portion under the elastic action of the first elastic element.

The reversing valve core 181 is internally provided with a runner a which is arranged in a penetrating way, both ends of the runner a are provided with flow guide ports a, the reversing valve core 181 is internally provided with a runner b which is arranged perpendicular to the runner a, one end of the runner b extends to the runner a and is communicated with the runner a, the other end of the runner b penetrates through the periphery of the reversing valve rod, the outer end of the runner b is provided with the flow guide ports b, when the reversing valve core 181 rotates to a first position, the runner a is communicated with an oil duct a11 and a lifting working port 15, and an oil return channel 14 is communicated with a descending working port 16, and when the reversing valve core 181 rotates to a second position, the runner a is communicated with the oil duct a11 and the descending working port 16, and the oil return channel 14 is communicated with the lifting working port 15.

The motor pump assembly 30 comprises a motor 31, a five-plunger pump core 32 and a relay assembly 33, wherein the output end of the motor 31 is connected with the five-plunger pump core 32, the motor 31 is electrically connected with the relay assembly 33, the relay assembly 33 is a device for controlling the connection of the motor 31 and an external circuit, two interfaces are arranged, one of the interfaces is connected with the motor 31, the other is connected with an external power supply, and the five-plunger pump core 32 is a conversion mechanism for converting low-pressure oil into high-pressure oil.

The oil tank 20 is provided with a ventilation cover assembly 21, the ventilation cover assembly 21 comprises an inserting tube 22, a connecting cover 23, a filling body 24 and an oil tube 25, the oil tank 20 is provided with an inserting port 26, the inserting tube 22 is assembled at the inserting port 26 through the cooperation of the connecting cover 23 and the inserting port 26, a sealing element 27 is arranged between the inserting tube 22 and the outer end face of the inserting port 26, one end of the inserting tube 22 is communicated with the inside of the oil tank 20, the other end of the inserting tube 22 is connected with the oil tube 25, the filling body 24 is arranged inside the inserting tube 22, air in the oil tank 20 can flow outwards towards the oil tube 25 through the filling body 24, but hydraulic oil in the oil tank 20 cannot pass through the filling body 24, and the connecting mode of the connecting cover 23 and the inserting port can be in threaded connection or elastic buckling connection mode.

The oil tank 20 is made of special plastic material, can bear the low temperature of-40 ℃ and the high temperature of more than 80 ℃, has high strength, cannot be easily damaged by external force, and is made of the same material as the oil tank 20.

The inner end of the plug tube 22 is provided with an oil scale 28 extending into the oil tank 20, the oil liquid amount is judged by the oil scale 28, and the hydraulic oil amount is judged by the trace of the hydraulic oil on the oil scale 28 after the connecting cover 23 is covered.

The manual pump (manual valve rod 171) and the motor pump assembly 30 are integrated on the valve seat 10 and share an oil way system, the motor pump assembly 30 is arranged vertically to the manual pump, so that space can be greatly saved, and the problems that the motor pump assembly 30 and the manual pump are horizontally arranged, the space cannot be fully utilized due to the fact that the motor pump assembly 30 and the manual pump are fixed through the transition plate, and the size is large in the prior art are solved.

The utility model can solve the oil leakage problem and detect the quantity of hydraulic oil in the oil tank 20 by designing the ventilation cover piece 21.

The electric use process comprises the following steps: the external power supply supplies power to the relay assembly 33, the motor 31 is started to drive the plungers in the five-plunger pump core 32 to move, hydraulic oil is sucked through the oil duct b12, low-pressure oil is converted into high-pressure oil and output to the oil duct a11, and the high-pressure oil enters the reversing valve core 181 to be distributed and then output.

The manual use process comprises the following steps: external mechanical force drives the manual valve rod 171 to reciprocate through rotating the operating rod 54, when the manual valve rod 171 moves upwards, the lower valve cavity 174 forms negative pressure, hydraulic oil in the oil tank 20 props up the unidirectional blocking ball 121 and enters the lower valve cavity 174, when the manual valve rod 171 moves downwards, the unidirectional blocking ball 121 blocks an oil suction port to enable a lower cavity to be isolated from the oil duct b12, hydraulic oil in the lower valve cavity 174 enters the reversing valve core 181 through the oil duct a11 to be distributed and then is output, and the first unidirectional valve structure 60 is designed before the high-pressure oil enters the reversing valve core 181, so that the rebound or the suction of the operating rod 54 caused by the backflow of the high-pressure oil can be prevented.

The oil circuit system is provided with the safety valve 175 and a plurality of groups of one-way valve structures, so that the damage of hydraulic impact to the pump can be effectively prevented, and when the oil pressure in the lower valve cavity 174 is overlarge, the second one-way valve structure 70 can be jacked up and enter the upper valve cavity 173 to flow back into the oil tank 20.

In both manual and electric use, the hydraulic oil in the oil tank 20 is reduced or increased, when the oil is reduced, external air is required to enter the oil tank 20 through the air exchanging cover member 21, and when the oil is increased, air in the oil can is required to be discharged, and the process is realized through the air exchanging cover member 21.

The foregoing description is only of the preferred embodiments of the utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.

Claims (6)

1. A compact combination pump, characterized by: comprises a valve seat (10) and an oil tank (20) and a motor pump assembly (30) which are arranged on the valve seat (10), wherein an oil duct a (11), an oil duct b (12), an oil duct c (13), an oil return channel (14), a lifting working port (15), a descending working port (16), a first valve cavity (17) and a second valve cavity (18) which is perpendicular to the first valve cavity (17) are arranged in the valve seat (10), a manual valve rod (171) is arranged in the first valve cavity (17), a manual rod mechanism (40) which drives the manual valve rod (171) to reciprocate along the first valve cavity (17) is arranged on the valve seat (10), a reversing valve core (181) is arranged in the second valve cavity (18), an operating rod component (50) which drives the reversing valve core (181) to reciprocate is arranged on the valve seat (10), the oil duct a (11) is communicated with the first valve cavity (17) and the second valve cavity (18), a first check valve structure (60) is arranged in the oil duct a (11), the oil duct b (12) is communicated with the oil tank (20) and the first valve cavity (17), a motor (12) is arranged between the first valve cavity (17) and the oil duct b (12) and the motor assembly is communicated with the oil duct (13), one end (13) of the oil duct (14) is communicated with the oil duct assembly, the other end of the oil return channel (14) penetrates through the peripheral wall of the reversing valve core (181), the reversing valve core (181) is rotated to switch the oil return channel (14) to conduct the lifting working port (15) or the descending working port (16), and meanwhile the oil duct a (11) can be switched to conduct the lifting working port (15) or the descending working port (16).

2. A compact combination pump as defined in claim 1, wherein: the manual valve rod (171) is characterized in that a piston (172) is sleeved on the periphery of the manual valve rod (171), the first valve cavity (17) is hermetically separated into an upper valve cavity (173) and a lower valve cavity (174) through the piston (172), the lower valve cavity (174) is communicated with the oil duct a (11), a safety valve (175) is arranged at the position, corresponding to the upper valve cavity (173), of the first valve cavity (17), air in the first valve cavity (17) can be discharged out of the valve seat (10) through the safety valve (175) while the safety valve (175) can prevent hydraulic oil from passing through, an inner cavity channel which is communicated with the upper valve cavity (173) and the lower valve cavity (174) is arranged in the manual valve rod (171), a second one-way valve structure (70) is arranged in the inner cavity channel, the second one-way valve structure (70) comprises a second ball head and a second spring which is propped against the second ball head, and the second ball head is arranged on one side of the downward valve cavity (174) and is elastically arranged on one side of the upward valve cavity (173).

3. A compact combination pump as defined in claim 1, wherein: the first check valve structure (60) comprises a first ball head, a first elastic piece and a first plug which are sequentially arranged, the oil duct a (11) is provided with a step part, and the first ball head is propped against the step part under the elastic action of the first elastic piece.

4. A compact combination pump as defined in claim 1, wherein: the motor pump assembly (30) comprises a motor (31), a five-plunger pump core (32) and a relay assembly (33), wherein the output end of the motor (31) is connected to the five-plunger pump core (32), and the motor (31) is electrically connected with the relay assembly (33).

5. A compact combination pump as recited in any of claims 1-4, characterised in that: be equipped with on oil tank (20) and exchange air lid and close piece (21), exchange air lid and close piece (21) including plug tube (22), connecting lid (23), packing body (24) and oil pipe (25), oil tank (20) are equipped with socket portion (26), and through connecting lid (23) and socket portion (26) cooperation with plug tube (22) assembly in socket portion (26), be equipped with sealing member (27) between plug tube (22) and socket portion (26) outer terminal surface, inside oil pipe (25) are connected to the one end intercommunication oil tank (20) of plug tube (22), the other end of plug tube (22) is equipped with packing body (24) inside, air in oil tank (20) can flow towards oil pipe (25) outside through packing body (24), but hydraulic oil in oil tank (20) can't pass through packing body (24).

6. A compact combination pump as defined in claim 5, wherein: the inner end of the plug-in pipe (22) is provided with an oil scale (28) which stretches into the oil tank (20), and the oil liquid amount is judged through the oil scale (28).