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CN-224228802-U - Double-acting manual hydraulic pump

CN224228802UCN 224228802 UCN224228802 UCN 224228802UCN-224228802-U

Abstract

The utility model discloses a double-acting manual hydraulic pump which comprises a pump assembly, a valve block assembly and a reversing valve assembly, wherein the pump assembly comprises a pump body, a fixed foot arranged at the bottom of the pump body, a large elastic cylindrical pin arranged at the top end of the pump body, a handle connected to the large elastic cylindrical pin, an oil tank body arranged at one end of the pump body, a pull rod arranged in the oil tank body and a rear end cover assembled at the end part of the pull rod, and the valve block assembly comprises a valve seat connected to the other end of the pump body. According to the utility model, the handle on the valve seat is rotated to drive the rotating shaft to rotate, the oil channel groove is arranged on the rotating shaft, the pin shaft below the rotating shaft is provided with the hole, the pin shaft and the rotating shaft can realize high-pressure sealing under the action of the spring and the oil pressure, the output of the oil pressure of the two oil ports in different directions can be realized by rotating the connection direction of the oil channel groove, the reversing valve assemblies are respectively arranged on the two sides of the valve block assembly, the oil outlet sequence of the four oil channels can be realized, and the practicability of the device is improved.

Inventors

  • JU JINBIN
  • JIN HAO
  • HAN ZHIQIANG

Assignees

  • 常州爱普超高压液压系统有限公司

Dates

Publication Date
20260512
Application Date
20250424

Claims (6)

  1. 1. A double-acting manual hydraulic pump, characterized by comprising a pump assembly (100), a valve block assembly (200) and a reversing valve assembly (300); The pump assembly (100) comprises a pump body (110), a fixed foot (130) arranged at the bottom of the pump body (110), a large elastic cylindrical pin (140) arranged at the top end of the pump body (110), a handle (150) connected to the large elastic cylindrical pin (140), an oil tank body (160) arranged at one end of the pump body (110), a pull rod (170) arranged in the oil tank body (160) and a rear end cover (190) assembled at the end part of the pull rod (170); The valve block assembly (200) comprises a valve seat (210) connected to the other end of the pump body (110), a pin shaft (220) arranged in the valve seat (210), a spring (230) connected to the outer end of the pin shaft (220), a first socket head cap screw (240) and a second socket head cap screw (250) which are connected to the side surface of the valve seat (210) in a threaded manner, and a rotating shaft (260) arranged in the valve seat (210) and propped against the inner end of the pin shaft (220); The reversing valve assembly (300) comprises an upper valve body (310) arranged on a valve seat (210) through a first inner hexagon screw (240) and a second inner hexagon screw (250), a handle seat (320) connected to the end part of the upper valve body (310), a handle (330) inserted at one side of the handle seat (320), a small elastic cylindrical pin (340) fixedly connected inside the handle seat (320), a cylindrical pin (350) and a steel ball (370) arranged inside the contact position of the small elastic cylindrical pin (340) and the upper valve body (310), and a stop spring (360) connected to the bottom of the steel ball (370) to provide elasticity; The small elastic cylindrical pin (340) is fixedly connected with the rotating shaft (260).
  2. 2. A double acting manual hydraulic pump according to claim 1, characterized in that the number of reversing valve assemblies (300) is two, the two sets of reversing valve assemblies (300) being symmetrically arranged on both sides of the valve block assembly (200).
  3. 3. The double-acting manual hydraulic pump according to claim 1, wherein a pressure gauge (120) is installed on one side of the pump body (110), and a red copper gasket is arranged at a position where the bottom of the pressure gauge (120) is connected with the pump body (110).
  4. 4. A double acting manual hydraulic pump according to claim 1, characterized in that the top and bottom of the tank body (160) are provided with tank cardboard (180) and that the top of the tank body (160) is fitted with a tank handle (161).
  5. 5. A double-acting manual hydraulic pump according to claim 1, characterized in that the handles (150) and the handles (330) are provided with handles (151) and handles (331) of the same material.
  6. 6. A double acting manual hydraulic pump according to claim 1, characterized in that the inner end of the pull rod (170) is connected with a piston which is slidingly connected inside the tank body (160).

Description

Double-acting manual hydraulic pump Technical Field The utility model relates to the technical field of manual hydraulic pumps, in particular to a double-acting manual hydraulic pump. Background The ultra-high pressure manual hydraulic pump is used as a simple and convenient hydraulic power source and is widely applied to the fields of ship industry, coal mine machinery, petrochemical industry, metallurgy, electric power, heavy machinery and the like. The double-acting manual hydraulic pump is accepted by the vast users through the advantages of small volume, light weight, portability, high safety and the like, but the output value is difficult to quickly adjust by using the single output oil duct, and the use difficulty is certain, so that the double-acting manual hydraulic pump is provided. Disclosure of utility model The present utility model aims to solve one of the technical problems existing in the prior art or related technologies. The technical scheme adopted by the utility model is as follows: The utility model provides a manual hydraulic pump of double-acting, includes pump unit spare, valve piece subassembly and switching-over valve unit spare, the pump unit spare includes the pump body, installs at the fixed foot of pump body bottom, sets up big elasticity cylindric lock on the pump body top, connects the handle on big elasticity cylindric lock, installs the oil tank body in pump body one end, set up at the inside pull rod of oil tank body, assemble the rear end cover at the pull rod tip, the valve piece subassembly is including connecting the disk seat at the pump body other end, set up at the inside round pin axle of disk seat, connect the spring on the round pin axle outer end, threaded connection in hexagon socket head cap screw one and hexagon socket head cap screw two of disk seat side, set up at the inside pivot of just supporting with the inner of round pin axle of disk seat, the switching-over valve unit spare includes through hexagon socket head cap screw one and hexagon head cap screw two install the last valve body on the disk seat, connect the handle seat in last valve body tip, peg graft in handle seat one side, fixed connection is at the inside small elasticity cylindric lock, set up at small elasticity cylindric lock and last cylindric lock contact position inside cylindric lock and steel ball, connect and the end provide the position spring of elasticity in the bottom. Preferably, the number of the reversing valve assemblies is two, and the two groups of reversing valve assemblies are symmetrically arranged on two sides of the valve block assembly. Preferably, a pressure gauge is arranged on one side of the pump body, and a red copper gasket is arranged at the position where the bottom of the pressure gauge is connected with the pump body. Preferably, the top and the bottom of the oil tank body are both provided with an oil tank paperboard, and an oil tank handle is installed at the top of the oil tank body. Preferably, the handles and the top ends of the handles are respectively sleeved with a handle sleeve and a handle sleeve which are made of the same material. Preferably, the inner end of the pull rod is connected with a piston, and the piston is connected in the handle sleeve in a sliding way. By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows: In the utility model, the handle 330 on the valve seat is rotated to drive the rotating shaft 260 to rotate, the rotating shaft 260 is provided with the oil way groove, the pin shaft 220 below the rotating shaft is provided with the hole, the pin shaft 220 and the rotating shaft 260 can realize high-pressure sealing under the action of the spring 230 and the oil pressure, the output of the oil pressure of two oil ports in different directions can be realized by rotating the connection direction of the oil way groove, and the two sides of the valve block assembly 200 are respectively provided with the reversing valve assembly 300, so that the oil outlet sequence of four oil channels can be realized, and the practicability of the device is improved. Drawings FIG. 1 is a schematic view of an embodiment of the present utility model; FIG. 2 is a schematic view of an embodiment of the present utility model; fig. 3 is a schematic view (structure) of an embodiment of the present utility model. Reference numerals: 100. 110 parts of a pump body, 120 parts of a pressure gauge, 130 parts of a fixed foot, 140 parts of a large elastic cylindrical pin, 150 parts of a handle, 151 parts of a handle sleeve, 160 parts of an oil tank body, 161 parts of an oil tank handle, 170 parts of a pull rod, 180 parts of an oil tank paperboard, 190 parts of a rear end cover; 200. The valve comprises a valve block assembly, a valve seat, 220, a pin shaft, 230, a spring, 240, a first socket head cap screw, 250, a second socket head cap screw, 260 and a rotating shaft; 300. The reversing valve comprises a reversing va