CN214741885U

CN214741885U - Double-acting double-displacement manual pump

Info

Publication number: CN214741885U
Application number: CN202120191713.6U
Authority: CN
Inventors: 杨立伟; 栾清泉; 滕儒博
Original assignee: Yantai Weihang Electric Hydraulic Equipment Co ltd
Current assignee: Yantai Weihang Electric Hydraulic Equipment Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-11-16
Anticipated expiration: 2031-01-22

Abstract

The application relates to a two discharge hand-operated pump of two effects, it includes the casing, and a plurality of tubular is inhaled to the one end of casing lateral wall and is returned the hydraulic fluid port, and a plurality of and tubular pressure outlet that the hydraulic fluid port quantity corresponds is inhaled to the tubular is seted up to the other end of casing lateral wall, and plate-type is inhaled back the hydraulic fluid port and is exported with plate-type pressure respectively to the bottom of casing. Install the hydraulic fluid port and the tubular pressure export are inhaled to the tubular of complete set additional on the casing, let the operator select suitable tubular to inhale back the hydraulic fluid port and the tubular pressure export is installed according to the concrete mounted position of casing and tube coupling mode, the hydraulic fluid port is inhaled back to the plate-type and the plate-type pressure export provides a bottom tube coupling mode, make the casing realize two kinds of mounting means of plate-type and tubular, this application has the effect of enlarging installation application range, can provide the hydraulic pressure ability for the jack and the hydraulic lifting platform of various models, thereby accomplish various jacking actions.

Description

Double-acting double-displacement manual pump

Technical Field

The application relates to the field of hydraulic power equipment, in particular to a double-acting double-displacement manual pump.

Background

The hydraulic manual pump device is a universal accessory of a hydraulic product, and can provide hydraulic energy for jacks of various types and hydraulic lifting platforms so as to finish various jacking actions.

The existing chinese patent publication No. CN105526052A discloses a high-pressure manual pump, which includes: the oil pump comprises a pump shell, wherein one side of the pump shell is provided with an oil inlet pipe nozzle and an oil outlet pipe nozzle, and the oil inlet pipe nozzle and the oil outlet pipe nozzle are connected with an oil tank through an oil conveying pipeline; the plunger valve assembly is arranged in the plunger outer barrel assembly positioned in the pump shell; the high-pressure valve assembly is connected with the plunger valve assembly through a hole path; the torque arm assembly is connected with the plunger valve assembly, and the plunger valve assembly rotates through the torque arm assembly to carry out axial reciprocating motion so as to realize pressurization of a hydraulic oil chamber; the crank is connected with the torque arm assembly and is used for driving a piston rod of the plunger valve assembly to do linear reciprocating motion so as to suck or compress oil.

In view of the above-mentioned related arts, the inventor believes that the high-pressure hand pump has the effects of being not easily worn and reliably pressurizing, but the high-pressure hand pump has only one oil suction/return port and one pressure outlet, and has a single position, so that the high-pressure hand pump is installed in a single manner, and the installation and use range of the high-pressure hand pump is relatively small.

SUMMERY OF THE UTILITY MODEL

In order to enlarge the installation and use range of the manual pump, the application provides a double-acting double-displacement manual pump.

The application provides a two discharge capacity manual pump of two effects adopts following technical scheme:

a double-acting double-displacement manual pump comprises a shell, wherein one end of the side wall of the shell is provided with a plurality of tubular oil suction and return ports, the other end of the side wall of the shell is provided with a plurality of tubular pressure outlets corresponding to the tubular oil suction and return ports in number, and the bottom end of the shell is respectively provided with a plate type oil suction and return port and a plate type pressure outlet.

Through adopting above-mentioned technical scheme, hydraulic fluid port and tubular pressure outlet are inhaled to the complete set tubular of having installed additional on the casing, let the operator select suitable tubular to inhale back hydraulic fluid port and tubular pressure outlet and install according to the concrete mounted position of casing and tube coupling mode, the hydraulic fluid port is inhaled back to the plate-type and plate-type pressure outlet provides a bottom tube coupling mode, make the casing realize two kinds of mounting means of plate-type and tubular, have the effect of enlarging installation application range, can provide hydraulic pressure ability for the jack and the hydraulic lifting platform of various models, thereby accomplish various jacking actions.

Optionally, a crank seat is arranged on the shell, a crank is connected to the crank seat, and the end of the crank is arranged in the crank seat.

Through adopting above-mentioned technical scheme, the operator is earlier with the crank installation on the crank seat, reciprocal swing crank, and then drives the reciprocal swing of crank seat, for the inside cavity of hand pump provides power, the crank has increased the arm of force of crank seat, and then the laborsaving crank seat of shaking of the operator of being convenient for.

Optionally, one end of the crank base, which is close to the crank, is sleeved with a tip spring, a plurality of steel balls are arranged in the crank base, one end of each steel ball penetrates through the side wall of the crank base and is arranged in the crank base, and the other end of each steel ball abuts against the tip spring.

Through adopting above-mentioned technical scheme, tip spring housing is on the crank seat while the tip spring is towards inside shrink, drives the inside that the steel ball made the tip of steel ball arrange the crank seat in, and the operator installs the crank in the crank seat this moment, is connected through the conflict extrusion of steel ball and crank seat, improves the stability of crank at the crank seat internal connection.

Optionally, an annular limiting groove is formed in the outer side wall of one end, close to the crank base, of the crank, and the end portion of the steel ball is arranged in the limiting groove and is abutted to the crank.

Through adopting above-mentioned technical scheme, when the operator installed the crank seat with the crank, fallen to the spacing inslot until the tip of steel ball, through the joint cooperation between steel ball and the spacing groove, with the more stable connection of crank in the crank seat, improved the stability of being connected between crank and the crank seat.

Optionally, a handle sleeve is sleeved at one end of the hand crank, which is far away from the crank seat.

Through adopting above-mentioned technical scheme, the grip cover is the rubber material, is rich in elasticity, and when the operator held and used the crank, the grip cover had alleviated impact force between staff and the crank, played the effect that improves the staff and use the travelling comfort when the crank.

Optionally, the positions of the tubular oil suction and return port, the tubular pressure outlet, the plate oil suction and return port and the plate pressure outlet are all provided with sealing rings.

Through adopting above-mentioned technical scheme, the sealing washer is arranged in the position department of tube coupling, and the sealing washer is rich in elasticity, has improved the leakproofness when pipeline and tubular are inhaled back hydraulic fluid port, tubular pressure outlet, plate-type are inhaled back hydraulic fluid port and plate-type pressure outlet connection.

Optionally, plugs are arranged at the positions of the tubular oil suction and return port and the tubular pressure outlet, and plugs are arranged at the positions of the plate oil suction and return port and the plate pressure outlet.

By adopting the technical scheme, when the tubular oil suction and return port and the tubular pressure outlet are not used, the plug is arranged at the positions of the tubular oil suction and return port and the tubular pressure outlet, so that the tubular oil suction and return port and the tubular pressure outlet are plugged, and the tubular oil suction and return port and the tubular pressure outlet are sealed; when the plate-type oil suction return port and the plate-type pressure outlet are not used, the plug is arranged at the position of the plate-type oil suction return port and the position of the plate-type pressure outlet, the plate-type oil suction return port is further plugged with the plate-type pressure outlet, and the plate-type oil suction return port and the plate-type pressure outlet are sealed.

Optionally, a plurality of connecting holes are formed in the edge around the bottom end of the shell.

Through adopting above-mentioned technical scheme, the operator passes through the connecting hole, holds the bolt together with the connecting hole fixedly, with the stable connection of casing on required equipment, makes things convenient for the operator to carry out detachable installation to the casing.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the shell is additionally provided with a set of tubular oil suction and return port and a set of tubular pressure outlet, so that an operator can select a proper tubular oil suction and return port and a proper tubular pressure outlet for installation according to the specific installation position and the pipeline connection mode of the shell, and the plate-type oil suction and return port and the plate-type pressure outlet provide a bottom pipeline connection mode, so that the shell realizes two installation modes of a plate type and a tube type, has the effect of expanding the installation and use range, and can provide hydraulic energy for jacks of various machine types and hydraulic lifting platforms, thereby completing various jacking actions;

2. the hand crank is firstly installed on the crank seat by an operator, and then the hand crank is reciprocated to drive the reciprocating oscillation of the crank seat, so that power is provided for a cavity inside the manual pump, the arm of force of the crank seat is increased by the hand crank, and the crank seat is conveniently swung by the operator in a labor-saving manner;

3. the tip spring housing is in the inside shrink of tip spring orientation on the crank seat simultaneously, drives the steel ball and makes the tip of steel ball arrange the inside of crank seat in, and the operator installs the crank in the crank seat this moment, is connected through the conflict extrusion of steel ball with the crank seat, improves the stability of crank at the crank seat internal connection.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a cross-sectional view of the connection between the hand crank and the crank seat in the embodiment of the present application.

Fig. 3 is a front view of the bottom end of the housing in an embodiment of the present application.

Description of reference numerals: 1. a housing; 11. a tubular oil suction port; 12. a tubular pressure outlet; 13. a plate type oil suction and return port; 14. a plate pressure outlet; 15. connecting holes; 2. a crank seat; 21. a steel ball; 22. a tip spring; 3. a hand crank; 31. a limiting groove; 32. holding the sleeve; 4. a seal ring; 5. a plug; 6. and (6) plugging by screwing.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

The embodiment of the application discloses two discharge manual pumps of two effects.

Referring to fig. 1, a two discharge capacity manual pump of two effects, including casing 1, casing 1 goes up the position department in the middle of top one side and articulates there is crank seat 2, is connected with crank 3 on crank seat 2, and crank seat 2 is arranged in to the tip of crank 3. An operator operates the handle crank 3 to perform the alternate reciprocating motion process of oil absorption and pressure oil through the cavity structure inside the shell 1, oil is filled in the large and small plunger cavities through the oil absorption check valves during oil absorption, the handle crank 3 is continuously operated, and hydraulic oil in the plunger cavities is pressed out of the manual pump through the check valves at all stages along with the rise of pressure. When the pressure rises to 4.4-5.4 MPa (or higher), the bypass valve is opened, the two large plunger cavities are communicated and flow back to the oil tank, the two small plunger cavities continue to work, the pressure tends to be stable when the pressure of the hand crank 3 continues to rise to the pressure set by the overflow valve, the highest working pressure set by the pump is reached, and the working process of the hand pump is realized.

Referring to fig. 2, an annular tip spring 22 is sleeved on one end of the handle base 2 close to the handle 3, and the tip spring 22 is sleeved on the handle base 2 while the tip spring 22 contracts towards the inside. Eight steel balls 21 which are uniformly distributed in an annular shape are placed in the handle base 2, one end of each steel ball 21 penetrates through the side wall of the handle base 2 and is placed in the handle base 2, the other end of each steel ball 21 is abutted to a pointed spring 22, and the end of each steel ball 21 is always kept in the handle base 2 under the condition that the steel balls 21 are not subjected to external force through inward contraction of the pointed springs 22.

Referring to fig. 2, an annular limiting groove 31 is formed in the outer side wall of one end, close to the crank base 2, of the crank 3, the end portion of the steel ball 21 is arranged in the limiting groove 31, and the end portion of the steel ball 21 is matched with the limiting groove 31. When an operator installs the hand crank 3 on the crank base 2, the end of the hand crank 3 firstly abuts against the steel ball 21 and extrudes the steel ball 21 outwards until the end of the steel ball 21 falls into the limiting groove 31, and the hand crank 3 is stably connected in the crank base 2 through the clamping fit between the steel ball 21 and the limiting groove 31.

Referring to fig. 1, a grip sleeve 32 is sleeved on one end of the hand crank 3 away from the crank base 2, and the grip sleeve 32 is made of rubber and is elastic. When the operator holds and uses hand crank 3, grip 32 relaxes the impact force between the hand and hand crank 3, thereby improving the comfort of the hand when using hand crank 3.

Referring to fig. 1, two tubular oil suction and return ports 11 are respectively formed at two ends of a side wall of a housing 1, and the two tubular oil suction and return ports 11 are symmetrically distributed about the housing 1. Two tubular pressure outlets 12 are opened at the other end of the side wall of the shell 1, and the two tubular pressure outlets 12 are also symmetrically distributed around the shell 1. An operator selects a proper tubular oil suction/return port 11 and a proper tubular pressure outlet 12 for installation according to the specific installation position of the shell 1 and the pipeline connection mode.

Referring to fig. 3, the bottom end of the housing 1 is respectively provided with a plate type oil suction return port 13 and a plate type pressure outlet 14, the plate type oil suction return port 13 and the plate type pressure outlet 14 are both arranged on a central line position of the bottom end of the housing 1, and the plate type oil suction return port 13 and the plate type pressure outlet 14 are both close to a middle position of the housing 1. The plate type oil suction and return port 13 and the plate type pressure outlet 14 provide another bottom pipeline connection mode, so that the shell 1 is in a plate type installation mode. Through two different connection modes of plate type and tube type, the installation and use range of the shell 1 is enlarged, and hydraulic energy is provided for jacks of various types and hydraulic lifting platforms, so that various jacking actions are completed. The manual pump also has a series of advantages of beautiful appearance, small volume, various installation forms, strong pressure maintaining capability, simple operation, wide application range and the like.

Referring to fig. 1 and 3, the positions of the tubular oil suction/return port 11, the tubular pressure outlet 12, the plate oil suction/return port 13, and the plate pressure outlet 14 are all provided with sealing rings 4 adapted to the tubular oil suction/return port, and the sealing rings 4 are made of rubber and have elasticity. The sealing ring 4 is arranged at the position where the pipeline is connected, and when the sealing ring 4 is connected with the pipeline, the sealing performance of the pipeline when the pipeline is connected with the tubular oil suction and return port 11, the tubular pressure outlet 12, the plate oil suction and return port 13 and the plate pressure outlet 14 is improved.

Referring to fig. 3, the positions of the tubular oil suction/return port 11 and the tubular pressure outlet 12 are both connected with plugs 5 in threaded connection with the tubular oil suction/return port 11 and the tubular pressure outlet 12, and when the operator does not need to use the tubular oil suction/return port 11 and the tubular pressure outlet 12, the plugs 5 are mounted to seal the tubular oil suction/return port 11 and the tubular pressure outlet 12.

Referring to fig. 3, the positions of the plate type oil suction/return port 13 and the plate type pressure outlet 14 are both connected with the screw plugs 6 matched with the plate type oil suction/return port 13 and the plate type pressure outlet 14 in a threaded manner, and when an operator does not need to use the plate type oil suction/return port 13 and the plate type pressure outlet 14, the screw plugs 5 are mounted to seal the plate type oil suction/return port 13 and the plate type pressure outlet 14. When the pipe type pump is installed, the two pipe type oil suction and return ports 11 and the two pipe type pressure outlets 12 respectively select one position to install the pipe type pump joint according to the installation form of the pipeline, and the other four positions are provided with the plugs 5 and the screw plugs 6. When the pump is installed in a plate mode, the two tubular oil suction and return ports 11 and the two tubular pressure outlets 12 are all provided with plugs 5, and the plate oil suction and return ports 13 and the plate pressure outlets 14 are screwed out of the plugs 6 matched with the pump.

Referring to fig. 3, four connecting holes 15 have been seted up to edge all around of 1 bottom of casing, and the operator passes through connecting hole 15, and is fixed bolt and connecting hole 15, with the stable connection of casing 1 on required equipment, makes things convenient for the operator to carry out detachable installation to casing 1.

The implementation principle of the double-acting double-displacement manual pump in the embodiment of the application is as follows: when the pipe type pump is installed, the two pipe type oil suction and return ports 11 and the two pipe type pressure outlets 12 are respectively selected to be installed with a pipe type pump joint according to the installation form of the pipeline, and the other four positions are provided with plugs 5 and screw plugs 6; when the pump is installed in a plate mode, the plugs 5 are installed on the two tubular oil suction and return ports 11 and the two tubular pressure outlets 12, and the screw plugs 6 matched with the pump are screwed out of the plate oil suction and return ports 13 and the plate pressure outlets 14; and finally, the hand crank 3 is installed in the crank seat 2, and the hand crank 3 is operated to alternately reciprocate through the cavity structure in the shell 1 by reciprocating the hand crank 3 to absorb oil and press oil, so that the working process of the hand pump is realized.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A double-acting double-displacement manual pump is characterized in that: the oil return device comprises a shell (1), wherein one end of the side wall of the shell (1) is provided with a plurality of tubular oil suction and return ports (11), the other end of the side wall of the shell (1) is provided with a plurality of tubular pressure outlets (12) corresponding to the tubular oil suction and return ports (11) in number, and the bottom end of the shell (1) is respectively provided with a plate-type oil suction and return port (13) and a plate-type pressure outlet (14).

2. A double acting, double displacement manual pump as defined in claim 1 wherein: the handle is characterized in that a handle seat (2) is arranged on the shell (1), a hand crank (3) is connected to the handle seat (2), and the end part of the hand crank (3) is arranged in the handle seat (2).

3. A double acting, double displacement manual pump as claimed in claim 2, wherein: one end of the crank base (2) close to the crank (3) is sleeved with a tip spring (22), a plurality of steel balls (21) are arranged in the crank base (2), one end of each steel ball (21) penetrates through the side wall of the crank base (2) and is arranged in the crank base (2), and the other end of each steel ball (21) is abutted to the tip spring (22).

4. A double acting, double displacement manual pump as claimed in claim 3, wherein: an annular limiting groove (31) is formed in the outer side wall of one end, close to the crank base (2), of the crank handle (3), and the end portion of the steel ball (21) is arranged in the limiting groove (31) and is abutted to the crank handle (3).

5. A double acting, double displacement manual pump as claimed in claim 2, wherein: one end of the hand crank (3) far away from the crank seat (2) is sleeved with a handle sleeve (32).

6. A double acting, double displacement manual pump as defined in claim 1 wherein: and sealing rings (4) are arranged at the positions of the tubular oil suction and return port (11), the tubular pressure outlet (12), the plate oil suction and return port (13) and the plate pressure outlet (14).

7. A double acting, double displacement manual pump as defined in claim 1 wherein: the positions of the tubular oil suction return port (11) and the tubular pressure outlet (12) are both provided with plugs (5), and the positions of the plate-type oil suction return port (13) and the plate-type pressure outlet (14) are both provided with plugs (6).

8. A double acting, double displacement manual pump as defined in claim 1 wherein: a plurality of connecting holes (15) are formed in the edge of the periphery of the bottom end of the shell (1).