CN201560908U

CN201560908U - A truck turning manual pump

Info

Publication number: CN201560908U
Application number: CN200920180591XU
Authority: CN
Inventors: 戴小军
Original assignee: Anhui Dehong Work Manufacture Co Ltd
Current assignee: Anhui Dehong Work Manufacture Co Ltd
Priority date: 2009-11-13
Filing date: 2009-11-13
Publication date: 2010-08-25
Anticipated expiration: 2019-11-13

Abstract

The utility model discloses a truck turning manual pump, which comprises a pump body. A longitudinal plunger bore is arranged in the pump body; a plunger rod is sealed in the plunger bore correspondingly and the upper part thereof is provided with a lifting device. An oil tank is fixedly arranged at one side of the pump body. Mounting holes are opened on the pump body; a column-shaped slidable reversing valve is slid correspondingly in the mounting holes and the external end of the reversing valve is provided with a reversing handle; a left oil pipe joint and a right oil pipe joint are arranged on the pump body outside a blind bore. When the reversing handle is longitudinal arranged, the high pressure oil in the blind bore is discharged from the left oil pipe joint and the right oil pipe joint respectively; when the reversing handle is horizontally arranged, the high pressure oil in the blind bore is discharged from the left oil pipe joint, fed from the right oil pipe joint and then flowed into an internal chamber of the oil tank via an oil return passage in the reversing valve. The utility model has the advantages of supplying high pressure oil supply for the system effectively and simple structure and convenient use.

Description

A kind of truck turns over the act hand pump

Technical field

The utility model belongs to the auto parts and components field, specifically is that a kind of truck turns over the act hand pump.

Background technique

Oil hydraulic pump is a kind of hydraulic element that pressurized liquid is provided for hydraulic transmission, is a kind of of pump.Its function is the pressure energy that the mechanical energy of power engine (as motor and internal-combustion engine etc.) is converted to liquid.Output flow can be regulated as required is called variable displacement pump, and flow can not be regulated is called metering pump.Pump commonly used has 3 kinds of gear pump, vane pump and plunger pumps in the hydraulic system.Gear pump: volume is less, and structure is simpler, and not tight to the turbidity test requirement of oil, price is more cheap; But pump shaft is subjected to unbalanced force, and serious wear is leaked bigger.Vane pump: be divided into double-acting vane pump and single acting vane pump.This pump duty is even, and running is steady, and noise is little, and working pressure and volumetric efficiency are than gear pump height, and structure is than gear pump complexity.Plunger pump: the volumetric efficiency height, leak for a short time, can under high pressure work, use the what high-power hydraulic system mostly; But complex structure, material and requirement on machining accuracy height, price is expensive, and is high to the turbidity test requirement of oil.

The model utility content

The purpose of this utility model provides a kind of truck and turns over the act hand pump, effectively realized system is supplied with high pressure oil, and simple in structure, easy to use.

The technical solution of the utility model is as follows:

A kind of truck turns over the act hand pump, include the pump housing, it is characterized in that: have vertical plunger hole in the described pump housing, be sealed with plunger rod in the plunger hole, the upper end of plunger rod is equipped with stretching device, one side of the pump housing is installed with fuel tank, the pump housing of one side of plunger hole bottom has linked hole and the fuel tank inner chamber connects, have mounting hole on the pump housing, be sliding combined with the selector valve of cylindricality in the mounting hole, the outer end of selector valve is equipped with reversing handle, have axial blind hole in the selector valve, the front end of blind hole is provided with oil inlet passage and has oil discharge passage with the bottom of described plunger hole and connect conducting, is provided with spring in the blind hole, the spring front end is placed with valve body, and described valve body supports the front end that blocks up in blind hole under the spring force effect; Left oil connection, right oil connection are installed on the pump housing in the outside of blind hole; On the blind hole sidewall of described left oil connection, right oil connection top left and right sides have intersect several angle and with two oil ducts of blind hole UNICOM; When selector valve was rotated in two special angles, left oil connection, right oil connection can communicate with two oil ducts of left and right sides respectively.

It is an angle of 90 degrees that two oil ducts of blind hole sidewall left and right sides intersect.

When selector valve rotated to a special angle, plunger hole and blind hole, left oil connection, right oil connection were UNICOMs, and the oil in the fuel tank can be depressed into blind hole through plunger hole, flowed out from left oil connection, right oil connection again; When selector valve rotates to another special angle, the oil inlet passage of the front end of blind hole connects not conducting with the oil discharge passage of the bottom of described plunger hole, left side oil connection, blind hole, right oil connection, one group of left and right sides oil duct are conductings, constitute another oil duct loop, and can insert fuel tank.

Described stretching device includes afterburning sleeve, and the afterburning sleeve outside is fixedly connected with and lifts piece, lifts the lower end of piece and the top of described plunger rod and is movably hinged, and the front end that lifts piece is movably hinged with the top that is articulated in the fork on the pump housing.

When the utility model is positioned at vertical position when reversing handle, high pressure oil in the blind hole is discharged from left oil connection, right oil connection respectively, when reversing handle is positioned at horizontal position, high pressure oil in the blind hole is discharged from left oil connection, from right oil connection oil-feed, enter the fuel tank inner chamber by the drainback passage in the selector valve; Effectively realized system is supplied with high pressure oil, and simple in structure, easy to use.

Description of drawings

Fig. 1 is a plan view of the present utility model.

Fig. 2 is a sectional view of the present utility model.

Fig. 3 is a plan view of the present utility model.

Fig. 4 is an oil duct distribution map on the utility model selector valve sidewall.

Embodiment

Referring to accompanying drawing, a kind of truck turns over the act hand pump, include the pump housing 1, have vertical plunger hole 2 in the pump housing 1, be sealed with plunger rod 3 in the plunger hole 2, the upper end of plunger rod 3 is equipped with stretching device 4, stretching device 4 includes afterburning sleeve 13, afterburning sleeve 13 outsides are fixedly connected with and lift piece 14, lift the lower end of piece and the top of plunger rod 3 and are movably hinged, and the front end that lifts piece 14 is movably hinged with the top that is articulated in the fork 15 on the pump housing 1; One side of the pump housing 1 is installed with fuel tank 5, the pump housing of one side of plunger hole 2 bottoms has linked hole 6 and connects with fuel tank 5 inner chambers, one-way valve 16 is installed in the linked hole 6, have mounting hole on the pump housing 1, be sliding combined with the selector valve 7 of cylindricality in the mounting hole, the outer end of selector valve 7 is equipped with reversing handle 8, have axial blind hole 9 in the selector valve, the front end of blind hole 9 is provided with oil inlet passage and connects conducting with the oil discharge passage that the bottom of plunger hole 2 has, be provided with spring in the blind hole 9, the spring front end has valve body 10, and the rear side of valve body 10 supports the front end that blocks up in blind hole by spring; Left oil connection 11, right oil connection 12 are installed on the pump housing 1 in the outside of blind hole 9;

And arranged on left and right sides has two

oil ducts

17,18 that intersect an angle of 90 degrees on the blind hole sidewall, and two oil duct positions of two oil ducts in left side and right side are identical.

When reversing handle 8 is positioned at horizontal position, a left side oil connection 11, right oil connection 12 can be respectively with the blind hole sidewall on two oil duct 17 UNICOMs, oil in the fuel tank can be depressed into blind hole through plunger hole, flows out from left oil connection, right oil connection through left and right sides oil duct 17 again;

When reversing handle 8 is positioned at horizontal position, left oil connection 11, right oil connection 12 can be respectively with the blind hole sidewall on two oil duct 18 UNICOMs; The oil inlet passage of the front end of blind hole connects not conducting with the oil discharge passage of the bottom of described plunger hole, and left oil connection, blind hole, right oil connection, two oil ducts 18 of left and right sides are conductings, constitute another oil duct loop, and can insert fuel tank.

Claims

1. a truck turns over the act hand pump, include the pump housing, it is characterized in that: have vertical plunger hole in the described pump housing, be sealed with plunger rod in the plunger hole, the upper end of plunger rod is equipped with stretching device, one side of the pump housing is installed with fuel tank, the pump housing of one side of plunger hole bottom has linked hole and the fuel tank inner chamber connects, have mounting hole on the pump housing, be sliding combined with the selector valve of cylindricality in the mounting hole, the outer end of selector valve is equipped with reversing handle, have axial blind hole in the selector valve, the front end of blind hole is provided with oil inlet passage and has oil discharge passage with the bottom of described plunger hole and connect conducting, is provided with spring in the blind hole, the spring front end is placed with valve body, and described valve body supports the front end that blocks up in blind hole under the spring force effect; Left oil connection, right oil connection are installed on the pump housing in the outside of blind hole; On the blind hole sidewall of described left oil connection, right oil connection top left and right sides have intersect several angle and with two oil ducts of blind hole UNICOM; When selector valve was rotated in two special angles, left oil connection, right oil connection can communicate with two oil ducts of left and right sides respectively.

2. turn over the act hand pump according to claim 1 truck, it is characterized in that: described stretching device includes afterburning sleeve, the afterburning sleeve outside is fixedly connected with and lifts piece, lift the lower end of piece and the top of described plunger rod and be movably hinged, the front end that lifts piece is movably hinged with the top that is articulated in the fork on the pump housing.

3. turn over the act hand pump according to claim 1 truck, it is characterized in that: it is an angle of 90 degrees that two oil ducts of described blind hole sidewall left and right sides intersect.