CN218293770U

CN218293770U - Hand pump

Info

Publication number: CN218293770U
Application number: CN202221215625.6U
Authority: CN
Inventors: 刘洋
Original assignee: Fengcheng Army And Civil Petroleum Machinery Co ltd
Current assignee: Fengcheng Army And Civil Petroleum Machinery Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2023-01-13
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses a hand pump, include the pump body and set up in the flowmeter of pump body top, one side through connection of the pump body has the piston rod, the top rigid coupling of the pump body has into the oil extraction valve gap, the oil feed interface has been seted up in the front of advancing the oil extraction valve gap, the flowmeter rigid coupling is in the top of advancing the oil extraction valve gap, the front of flowmeter is provided with out the oil interface, the front cover is equipped with the cylinder liner with the inside clamp of back lid, the top of cylinder liner is provided with into the oil extraction disk seat, advance oil valve and oil extraction valve and link to each other with advancing the oil extraction disk seat through advancing oil valve spring and oil extraction valve spring respectively. The utility model relates to a manual appurtenance technical field, this hand pump reasonable in design, processing is simple, and the detachable design of the pump body is easily assembled and is maintained, and whole weight is lighter, convenient to carry. The internal structure has reasonable design, easy single operation, reliable performance, time and labor saving in operation and reliable performance.

Description

Hand pump

Technical Field

The utility model relates to a manual appurtenance technical field specifically is a hand pump.

Background

The hand pump is mainly used for filling oil for vehicles and engineering machinery or transferring oil by dumping between different oil storage devices under the conditions of emergency maneuvering and no external power, and is suitable for conveying light oil such as gasoline, diesel oil and the like and also can convey high-viscosity auxiliary oil such as lubricating oil and the like.

The hand pump is composed of a pump body, an oil inlet and outlet valve, a valve seat, a valve cover, a piston, a pump cover, a pump shaft, a middle connecting rod, a transmission rod and the like, wherein the pump body, the valve seat, the valve cover, the piston, the pump shaft seat and the sealing cover are cast and processed by cast iron, the piston is installed in the pump body and is connected with the middle connecting rod through a pin shaft, the other end of the middle connecting rod is connected with the transmission rod through a pin shaft, the transmission rod is fixedly installed on the pump shaft processed into a square shape, when the pump shaft is shaken by a crank front and back, the piston does reciprocating motion in the pump body, and under the action of the oil inlet and outlet valve, the piston generates positive and negative pressure during the reciprocating motion so that a medium enters or is discharged out of the pump body to achieve the purpose of oil transportation. Because most parts of the hand pump are cast iron parts, the hand pump is large in size, heavy in weight, inconvenient to carry, move and use, difficult to operate by a single person with large resistance, time-consuming and labor-consuming in operation and unreliable in performance.

Disclosure of Invention

Not enough to prior art, the utility model provides a hand pump has solved current hand pump and has carried inconvenient and awkward problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a hand pump comprises a pump body and a flowmeter arranged above the pump body, wherein a piston rod is connected to one side of the pump body in a penetrating manner, a guide sleeve is arranged at the joint of the pump body and the piston rod, a rocking handle is connected to the piston rod, a piston is arranged at one end of the piston rod penetrating into the pump body, a piston ring is arranged on the outer ring of the piston, the pump body comprises a front cover and a rear cover which are fixedly connected through a stud bolt, the piston rod penetrates through the rear cover, an oil inlet and outlet valve cover is fixedly connected to the upper portion of the pump body, an oil inlet connector is arranged on the front side of the oil inlet and outlet valve cover, the flowmeter is fixedly connected to the upper portion of the oil inlet and outlet valve cover, and an oil outlet connector is arranged on the front side of the flowmeter;

the front cover and the rear cover are internally provided with a cylinder sleeve in a clamping mode, an oil inlet and outlet valve seat is arranged above the cylinder sleeve, holes are formed in two sides of the oil inlet and outlet valve seat, an oil inlet valve and an oil outlet valve are arranged in the holes respectively, and the oil inlet valve and the oil outlet valve are connected with the oil inlet and outlet valve seat through an oil inlet valve spring and an oil outlet valve spring respectively.

Preferably, the upper surface of the oil inlet and outlet valve seat is abutted to the oil inlet and outlet valve cover, and the contact surfaces of the oil inlet and outlet valve seat, the oil inlet and outlet valve cover and the cylinder sleeve are respectively provided with a valve cover rubber gasket and a valve seat rubber gasket.

Preferably, the contact surface of the cylinder sleeve and the valve body is provided with an O-shaped ring.

Preferably, a sealing ring is arranged at the joint of the guide sleeve and the rear cover.

Preferably, the piston ring is connected to the piston by a piston ring spring.

Preferably, one end of a support is hinged to the lower portion of the rocking handle, and the other end of the support is hinged to the rear cover.

Advantageous effects

The utility model provides a hand pump. The method has the following beneficial effects: this hand pump reasonable in design, processing is simple, and the detachable design of the pump body is easily assembled and is maintained, and whole weight is lighter, convenient to carry. The internal structure has reasonable design, easy single operation, reliable performance, time and labor saving in operation and reliable performance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged view of a point a in fig. 1 according to the present invention.

In the figure: 1. flowmeter, 2, oil outlet interface, 3, oil inlet and outlet valve cover, 4, oil inlet interface, 5, oil outlet valve, 6, oil outlet valve spring, 7, oil inlet and outlet valve seat, 8, O-shaped ring, 9, front cover, 10, piston ring, 11, piston, 12, stud, 13, rear cover, 14, piston rod, 15, guide sleeve, 16, support, 17, sealing ring, 18, cylinder sleeve, 19, valve seat rubber gasket, 20, valve cover rubber gasket, 21, oil inlet valve spring, 22, oil inlet valve, 23, rocking handle, 24, piston ring spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

As shown in fig. 1-2, the hand pump comprises a pump body, wherein the pump body comprises a front cover 9 and a rear cover 13 which are fixedly connected through a stud bolt 12, a piston rod 14 penetrates through one side of the pump body, the piston rod 14 penetrates through the rear cover 13, a guide sleeve 15 is arranged at the joint of the pump body and the piston rod 14, and a sealing ring 17 is arranged at the joint of the guide sleeve 15 and the rear cover 13.

Protecgulum, hou gai, piston are the aluminum alloy casting, compare easy to process with present equal hand pump product, and the installation maintenance is simple, and is small, and weight only has 9KG, is 41% of current hand pump weight, so convenient to carry, the operation is light, the dependable performance.

A rocking handle 23 is connected to the piston rod 14, the piston rod 14 is connected with the rocking handle 23 through a pin shaft, one end of a support 16 is hinged below the rocking handle 23, and the other end of the support 16 is hinged with the rear cover 13;

the piston 11 is arranged at one end of the piston rod 14 penetrating into the pump body, the piston 11 and the piston rod 14 are fixedly connected in a thread form and are arranged in the stainless steel cylinder sleeve 18, the piston ring 10 is arranged on the outer ring of the piston 11, and the piston ring 10 is connected with the piston 11 through a piston ring spring 24.

The top rigid coupling of the pump body has into oil extraction valve gap 3, and oil feed interface 4 has been seted up in the front of advancing oil extraction valve gap 3, and the top rigid coupling of advancing oil extraction valve gap 3 has flowmeter 1, and flowmeter 1's front is provided with oil outlet interface 2.

A cylinder sleeve 18 is clamped in the front cover 9 and the rear cover 13, the sleeve 18 is made of stainless steel, the cylinder sleeve 18 is clamped by a shaft bolt, an oil inlet and outlet valve seat 7 is arranged above the cylinder sleeve 18, holes are formed in two sides of the oil inlet and outlet valve seat 7, an oil inlet valve 22 and an oil outlet valve 5 are respectively arranged in the two holes, and the oil inlet valve 22 and the oil outlet valve 5 are respectively connected with the oil inlet and outlet valve seat 7 through an oil inlet valve spring 21 and an oil outlet valve spring 6;

the cylinder sleeve 18 is made of stainless steel and has good wear resistance and corrosion resistance.

The upper surface of the oil inlet and outlet valve seat 7 is abutted against the oil inlet and outlet valve cover 3, and the contact surfaces of the oil inlet and outlet valve seat 7, the oil inlet and outlet valve cover 3 and the cylinder sleeve 18 are respectively provided with a valve cover rubber gasket 20 and a valve seat rubber gasket 19;

the contact surface of the cylinder sleeve 18 and the valve body is provided with an O-shaped ring 8.

Specifically, when the rocking handle 23 is supported by the bracket 16, and the rocking handle 23 is rocked back and forth, the piston 11 and the piston rod 14 are driven by the rocking handle 23, the piston 11 reciprocates in the cylinder sleeve, and under the action of the oil discharge valve 5 and the oil inlet valve 22, the piston 11 generates positive and negative pressure during reciprocating motion, so that a medium enters or is discharged from the cylinder sleeve 18 to achieve the purpose of oil transportation.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hand pump, includes the pump body and sets up flowmeter (1) in pump body top, one side through connection of the pump body has piston rod (14), the pump body is provided with uide bushing (15) with the junction of piston rod (14), be connected with rocking handle (23) on piston rod (14), the one end that piston rod (14) run through into the pump body is provided with piston (11), the outer lane of piston (11) is provided with piston ring (10), its characterized in that: the pump body comprises a front cover (9) and a rear cover (13) which are fixedly connected through a stud bolt (12), the piston rod (14) penetrates through the rear cover (13), an oil inlet and outlet valve cover (3) is fixedly connected above the pump body, an oil inlet interface (4) is arranged on the front side of the oil inlet and outlet valve cover (3), the flowmeter (1) is fixedly connected above the oil inlet and outlet valve cover (3), and an oil outlet interface (2) is arranged on the front side of the flowmeter (1);

the oil-gas separation type oil-gas separation device is characterized in that a cylinder sleeve (18) is clamped inside the front cover (9) and the rear cover (13), an oil inlet and outlet valve seat (7) is arranged above the cylinder sleeve (18), holes are formed in the two sides of the oil inlet and outlet valve seat (7), an oil inlet valve (22) and an oil outlet valve (5) are arranged in the holes respectively, and the oil inlet valve (22) and the oil outlet valve (5) are connected with the oil inlet and outlet valve seat (7) through an oil inlet valve spring (21) and an oil outlet valve spring (6) respectively.

2. A hand pump according to claim 1, wherein: the upper surface of the oil inlet and outlet valve seat (7) is abutted to the oil inlet and outlet valve cover (3), and the contact surfaces of the oil inlet and outlet valve seat (7), the oil inlet and outlet valve cover (3) and the cylinder sleeve (18) are respectively provided with a valve cover rubber gasket (20) and a valve seat rubber gasket (19).

3. A hand pump according to claim 1, wherein: and an O-shaped ring (8) is arranged on the contact surface of the cylinder sleeve (18) and the valve body.

4. The hand pump as defined in claim 1, wherein: and a sealing ring (17) is arranged at the joint of the guide sleeve (15) and the rear cover (13).

5. A hand pump according to claim 1, wherein: the piston ring (10) is connected to the piston (11) by a piston ring spring (24).

6. A hand pump according to claim 1, wherein: one end of a support (16) is hinged below the rocking handle (23), and the other end of the support (16) is hinged with the rear cover (13).