CN212928081U - Hand pump - Google Patents

Abstract

The utility model discloses a manual pump, which comprises a pump body, a piston component, a joint bearing and a rocker component; the pump body is provided with a pump cavity and is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the pump cavity, the piston component partially extends into the pump cavity and can do linear reciprocating motion in the pump cavity, the piston component comprises a piston and a piston rod, the piston is connected with one end of the piston rod, the other end of the piston rod is provided with a blind hole extending inwards, the blind hole is provided with an internal thread, the joint bearing comprises a rod end and a ball end, the rod end is provided with an external thread, and the external thread of; wherein, the rod end still spiro union has at least one nut to fixed rod end stretches into the degree of blind hole when the external screw thread of rod end and the internal thread spiro union of blind hole, the ball end is rotationally connected to the rocker component. The utility model discloses compact structure, the range of shaking of rocker component is adjustable, and is particularly suitable for carrying or bearing.

Description

Hand pump

Technical Field

The utility model discloses a hand pump.

Background

The manual pump is a device for conveying liquid medicine or pressurizing liquid through manual force application, does not need electric drive, is convenient and safe to use, can only bear the pressure of 0 to 0.4Mpa generally in the conventional manual pumps such as sprinkling cans and pesticide pots on the market, and cannot be applied to working scenes higher than the bearing pressure of the conventional manual pumps such as tree injection and medicine spraying. And the rocking range of present manual pump rocker is fixed, can't adjust, and different operating personnel's arm exhibition is different, and it is very inconvenient that some operating personnel operate when also carrying out the rocker.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand pump can bear the high pressure and the range of shaking of rocker is adjustable, is applicable to multiple application scene.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a manual pump comprises a pump body, a piston component, a joint bearing and a rocker component; the pump body is provided with a pump cavity and is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the pump cavity, the piston component partially extends into the pump cavity and can do linear reciprocating motion in the pump cavity, the piston component comprises a piston and a piston rod, the piston is connected with one end of the piston rod, the other end of the piston rod is provided with a blind hole extending inwards, the blind hole is provided with an internal thread, the joint bearing comprises a rod end and a ball end, the rod end is provided with an external thread, and the external thread of the rod end is matched with the internal thread of the blind hole in a; the rod end is further connected with at least one nut in a threaded mode so that the degree of the rod end extending into the blind hole can be fixed when the external thread of the rod end is in threaded connection with the internal thread of the blind hole, and the rocker member is rotatably connected with the ball end.

In one embodiment, the side wall of the pump body is convexly provided with an ear plate, the rocker member comprises a connecting rod, a rocker and a connecting block, and the connecting block is sequentially provided with a first mounting position, a second mounting position and a third mounting position; one end of the connecting rod is rotatably connected with the lug plate, the other end of the connecting rod is rotatably connected with the second mounting position, the ball end is rotatably connected with the first mounting position, and the rocker is fixedly connected with the third mounting position.

In one embodiment, the pump body comprises a pump shell and a base, the pump cavity is arranged in the pump shell, and the base is connected to the bottom of the pump shell; the base includes the bottom plate, the round hole has been seted up in bottom plate center department, the piston rod passes the round hole stretches into the pump chamber, be equipped with flange bearing, oil blanket and retaining ring from top to bottom in proper order between piston rod and the bottom plate.

In one embodiment, the bottom plate is rectangular, screw holes are respectively formed in four top corners of the bottom plate, the bottom plate is fixedly connected with the bottom of the pump shell through screws, an embedding groove is formed in the upper surface of the bottom plate, and a sealing ring is installed in the embedding groove to seal an installation gap between the bottom plate and the pump shell.

In one embodiment, two opposite side walls of the pump shell are respectively provided with a pipeline and communicated with the pump cavity, and two plugs are respectively screwed at the pipe orifices of the pipelines.

In one embodiment, the side wall of the pump shell is provided with a plurality of mounting holes for connecting screws.

In one embodiment, the pump housing is integrally formed with the ear plate.

In one embodiment, the liquid inlet and the liquid outlet are respectively connected with a straight-through one-way valve.

In one embodiment, two nuts are screwed on the rod end of the oscillating bearing.

In one embodiment, the pump body and piston member are both made of stainless steel.

The utility model has the advantages that:

an object of the utility model is to provide a hand pump can bear the high pressure and rocker member's shaking range is adjustable, is applicable to multiple application scene. Furthermore, the manual pump has compact structure and is very suitable for carrying or carrying.

Drawings

Fig. 1 is a schematic view of a main structure of a hand pump according to the present invention;

fig. 2 is a schematic view of a simple structure of a hand pump according to the present invention;

fig. 3 is a schematic sectional view of a hand pump according to the present invention;

fig. 4 is an exploded view of a hand pump according to the present invention;

fig. 5 is a schematic view of the present invention showing the use state of the rocking range of the rocking lever member.

Detailed Description

Referring to fig. 1 to 4, the main structure of a hand pump provided by the present invention is schematically shown. The hand pump includes a pump body 1, a piston member 2, a joint bearing 3, and a rocker member 4. The pump body 1 and the piston member 2 can be made of stainless steel, so that the capacity of the hand pump for bearing high pressure is improved. In this embodiment, the pump body 1 and the piston member 2 are both made of 304 stainless steel. The utility model provides a hand pump can be used for technologies such as trees injection, spraying, laxative, nevertheless does not regard this as the limit.

The pump body 1 has a pump chamber 11 and is provided with a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet communicate with the pump chamber 11. The piston member 2 partially extends into the pump chamber 11 and is linearly reciprocable within the pump chamber 11. The piston member 2 comprises a piston 21 and a piston rod 22. The piston 21 is connected with one end of the piston rod 22, and two O-rings 24 are sleeved on the piston 21. The other end of the piston rod 22 is provided with an inwardly extending blind bore 23. The blind hole 23 is provided with an internal thread. The spherical joint bearing 3 comprises a rod end 31 and a ball end 32, wherein the rod end 31 is provided with an external thread (not shown in the figure), and the external thread of the rod end 31 is in threaded connection with the internal thread of the blind hole 23. Wherein, the rod end 31 is further screwed with at least one nut 33 to fix the extent to which the rod end 31 extends into the blind hole 23 when the external thread of the rod end 31 is screwed with the internal thread of the blind hole 23, and the rocker member 4 is rotatably connected with the ball end 32. Accordingly, the operator can adjust the swing range of the rocker 42 by adjusting the degree of the rod end 31 extending into the blind hole 23 according to the operation habit.

Specifically, the pump body 1 includes a pump case 12 and a base 13, the pump chamber 11 is provided in the pump case 12, and the base 13 is attached to the bottom of the pump case 12. An ear plate 14 is projected from the side wall of the pump casing 12, and the ear plate 14 is integrally formed with the pump casing 12. Two opposite side walls of the pump shell 12 are respectively provided with a pipeline 15 and communicated with the pump cavity 11, and two screw plugs 16 are respectively screwed at the pipe orifices of the pipelines 15. A plurality of mounting holes (not shown) to which the screws 5 can be attached may be further provided in the side wall of the pump housing 12. So can conveniently install the manual pump in the outside of medicinal cupping, laxative equipment through screw 5. The liquid inlet and the liquid outlet are arranged on the pump shell 12 and close to the top of the pump shell 12, and a through one-way valve 17 is respectively connected on the liquid inlet and the liquid outlet. The available media in the pump chamber 11 include, among others: water, oil, pesticide, plant maintenance liquid, acid-base solution, etc.

The rocker member 4 includes a link 41, a rocker 42 and a connecting block 43. The connecting block 43 is provided with a first mounting position 44, a second mounting position 45 and a third mounting position 46 in sequence. One end of the connecting rod 41 is rotatably connected with the lug plate 14, and the other end is rotatably connected with the second mounting position 45; the ball end 32 is rotatably connected to the first mounting location 44; the rocker 42 is fixedly connected to the third mounting location 46. Specifically, one end of the connecting rod 41 is rotatably connected with the ear plate 14 through a screw 5, and the other end is rotatably connected with the second mounting position 45 through a screw 5; the ball end 32 is rotatably connected with the first mounting position 44 through a screw 5; the rocker 42 is fixedly connected with the third mounting position 46 through a screw 5. And the screw 5 may be sleeved with a washer 51.

The base 13 includes a bottom plate 131, a circular hole 132 is formed in the center of the bottom plate 131, and the piston rod 22 passes through the circular hole 132 and extends into the pump chamber 11. A flange bearing 133, an oil seal 134 and a retainer ring 135 are arranged between the piston rod 22 and the bottom plate 131 from top to bottom in sequence. In this embodiment, the bottom plate 131 is rectangular, and four corners thereof are respectively provided with a screw hole and fixedly connected to the bottom of the pump casing 12 through screws 5, and the screws 5 may also be sleeved with a gasket 51. The upper surface of the bottom plate 131 is provided with a caulking groove 136, and a sealing ring 137 is installed in the caulking groove 136 to seal an installation gap between the bottom plate 131 and the pump shell 12.

Optionally, two nuts 33 are screwed on the rod end 31 of the joint bearing 3. Through the degree that rotatory piston rod 22 stretched into blind hole 23 with adjustment rod end 31, after the degree that the rod end 31 of adjusting joint bearing 3 stretched into piston rod 22 blind hole 23, two nuts 33 of rotation in proper order made one of them nut 33 butt piston rod 22's tip, and then the degree that fixed rod end 31 stretched into blind hole 23, made another nut 33 butt this nut 33, and then prevented nut 33 and drop according to two nut 33 locking principles, also further fixed rod end 31 stretches into the degree of blind hole 23 simultaneously. Referring to fig. 5, the rocking range of the rocker 42 can be adjusted by adjusting the extent of the rod end 31 extending into the blind hole 23, so as to adapt to different operating habits of operators.

To sum up, the utility model provides a manual pump can bear the high pressure and the rocking range of rocker component is adjustable, is applicable to multiple application scene. Moreover, the structure is compact, and the utility model is very suitable for carrying or carrying.

The above description is the preferred embodiment of the present invention and the technical principle applied by the same, and for those skilled in the art, without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformation, simple replacement, etc. based on the technical solution of the present invention all belong to the protection scope of the present invention.

Claims (10)

1. A manual pump, characterized in that it comprises a pump body, a piston member, a spherical plain bearing and a rocker member; the pump body is provided with a pump cavity and is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are communicated with the pump cavity, the piston component partially extends into the pump cavity and can do linear reciprocating motion in the pump cavity, the piston component comprises a piston and a piston rod, the piston is connected with one end of the piston rod, the other end of the piston rod is provided with a blind hole extending inwards, the blind hole is provided with an internal thread, the joint bearing comprises a rod end and a ball end, the rod end is provided with an external thread, and the external thread of the rod end is matched with the internal thread of the blind hole in a; the rod end is further connected with at least one nut in a threaded mode so that the degree of the rod end extending into the blind hole can be fixed when the external thread of the rod end is in threaded connection with the internal thread of the blind hole, and the rocker member is rotatably connected with the ball end.

2. The manual pump of claim 1, wherein the side wall of the pump body is provided with an ear plate in a protruding manner, the rocker member comprises a connecting rod, a rocker and a connecting block, and the connecting block is provided with a first mounting position, a second mounting position and a third mounting position in sequence; one end of the connecting rod is rotatably connected with the lug plate, the other end of the connecting rod is rotatably connected with the second mounting position, the ball end is rotatably connected with the first mounting position, and the rocker is fixedly connected with the third mounting position.

3. The hand pump of claim 2, wherein said pump body includes a pump housing and a base, said pump cavity being disposed within said pump housing, said base being attached to a bottom of said pump housing; the base includes the bottom plate, the round hole has been seted up in bottom plate center department, the piston rod passes the round hole stretches into the pump chamber, be equipped with flange bearing, oil blanket and retaining ring from top to bottom in proper order between piston rod and the bottom plate.

4. The hand pump as claimed in claim 3, wherein said bottom plate is rectangular, and has screw holes at four corners thereof and is fixedly coupled to the bottom of said pump housing by screws, and a caulking groove is formed on the upper surface of said bottom plate, and a sealing ring is fitted in said caulking groove to seal a mounting gap between said bottom plate and said pump housing.

5. A hand pump according to claim 3, wherein a pipe is provided on each of the opposite side walls of the pump casing to communicate with the pump chamber, and two plugs are screwed to the pipe ports of the pipes, respectively.

6. A hand pump according to claim 3, wherein the side wall of the pump casing is provided with a plurality of mounting holes to which screws can be attached.

7. A hand pump according to claim 3, wherein said pump housing is integrally formed with said ear plate.

8. A hand operated pump according to claim 1 wherein the inlet and outlet ports are each connected to a through one way valve.

9. Manual pump according to any of claims 1 to 8, characterized in that said rod end of said oscillating bearing is threaded with two said nuts.

10. The hand pump of claim 9, wherein said pump body and piston member are both formed of stainless steel.

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