CN214092187U

CN214092187U - Plunger pump

Info

Publication number: CN214092187U
Application number: CN202022725568.3U
Authority: CN
Inventors: 谭文拯
Original assignee: Ningbo Jiayin Electrical And Mechanical Technology Co ltd
Current assignee: Ningbo Jiayin Electrical And Mechanical Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-08-31
Anticipated expiration: 2030-11-23

Abstract

The utility model relates to a plunger pump, include: the plunger assembly comprises a plunger barrel and a plunger rod, and the plunger rod is movably arranged in the plunger barrel; the power parts are arranged on one side of the plunger assembly side by side along the radial direction of the plunger rod; the transmission component comprises a transmission part and a curved rod, the transmission part is connected with the power part, one end of the curved rod is connected with the transmission part, the other end of the curved rod is connected with the plunger rod, the power part is used for driving the transmission part to rotate, and the transmission part can drive the curved rod to carry out centrifugal motion by rotating so as to drive the plunger rod to carry out reciprocating linear motion along the plunger cylinder. The plunger pump can effectively shorten the length dimension in the axial direction of the plunger rod, reduce the occupied space and also enable the plunger rod to obtain larger driving force.

Description

Plunger pump

Technical Field

The utility model relates to a power pump technical field especially relates to a plunger pump.

Background

Most of traditional plunger pumps are driven in a linear mode, the power part and the plunger rod are arranged coaxially, and the length of the plunger pump in the axial direction of the plunger rod is too large, so that the plunger pump is large in occupied space and not suitable for occasions with small axial installation space.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a plunger pump capable of effectively shortening the length dimension in the axial direction of the plunger rod, reducing the occupied space, and also capable of obtaining a large driving force for the plunger rod, in view of the above-mentioned problems.

A plunger pump comprising:

the plunger assembly comprises a plunger barrel and a plunger rod, and the plunger rod is movably arranged in the plunger barrel;

the power parts are arranged on one side of the plunger assembly side by side along the radial direction of the plunger rod; and

the transmission component comprises a transmission part and a curved rod, the transmission part is connected with the power part, one end of the curved rod is connected with the transmission part, the other end of the curved rod is connected with the plunger rod, the power part is used for driving the transmission part to rotate, and the transmission part can drive the curved rod to carry out centrifugal motion by rotating so as to drive the plunger rod to carry out reciprocating linear motion along the plunger cylinder.

Specifically, the plunger assembly is used for realizing water sucking and draining actions under the driving of the power part, and when the plunger rod makes reciprocating linear motion along the axial direction of the plunger barrel, negative pressure can be generated, so that the water sucking and draining actions are realized. The transmission assembly is used for realizing power transmission between the power part and the plunger assembly, wherein the transmission part is arranged on the same side of the power part and is connected with a driving shaft of the power part, the curved bar has a certain bending radian, one end of the curved bar is connected with the transmission disc, the other end of the curved bar is connected with the plunger rod, when the power part works, the power part can transmit power to the curved bar through the transmission part, and then the plunger rod can be driven by the curved bar to perform reciprocating linear motion along the axial direction.

When the plunger pump works, power is transmitted to the curved rod through the power part and then the curved rod can drive the plunger rod to perform reciprocating linear motion along the plunger cylinder, so that water absorption and drainage actions are realized. The power part can be arranged on one side of the plunger assembly side by side along the radial direction of the plunger rod by mutually matching the transmission part and the curved rod, and compared with the traditional linear driving plunger pump, the axial length dimension of the plunger pump on the plunger rod can be effectively reduced, so that the overall occupied space is smaller, the linear driving plunger pump can be well suitable for occasions with limited axial installation space, and the application range is wider; meanwhile, the transmission part can drive the curved rod to perform high-speed centrifugal motion, the curved rod drives the plunger rod to perform reciprocating linear motion through centrifugal motion, and the plunger rod can obtain larger driving force due to strong explosive force of the centrifugal motion of the curved rod. The plunger pump of the scheme can effectively shorten the length dimension of the plunger rod in the axial direction, reduce the occupied space and enable the plunger rod to obtain larger driving force.

In one embodiment, the transmission part comprises a transmission disc and an eccentric column arranged on the transmission disc, the axis of the eccentric column deviates from the rotating axis of the transmission disc, the curved bar comprises a curved bar body and a sleeving part arranged at one end of the curved bar body, and the sleeving part is sleeved on the periphery of the eccentric column.

In one embodiment, the driving disc is a fluted disc, and the driving end of the power piece is provided with a gear meshed with the fluted disc.

In one embodiment, the curved rod further comprises a ball head arranged at one end of the curved rod body far away from the socket joint part, and the plunger rod is provided with a ball socket connected with the ball head.

In one embodiment, the outer surface of the curved bar body is provided with a reinforcing rib, and the reinforcing rib is consistent with the extending direction of the curved bar body.

In one embodiment, the plunger pump further comprises a housing, and the plunger assembly, the power member and the transmission assembly are all contained in the housing.

In one embodiment, the casing includes first half shell and second half shell that mutually supports, first half shell with inject first holding chamber, second holding chamber and third holding chamber between the second half shell, first holding chamber with the second holding chamber is arranged side by side, the third holding chamber is located first holding chamber with same one side of second holding chamber, the plunger subassembly accept in first holding intracavity, the power part accept in the second holding intracavity, the transmission assembly accept in the third holding intracavity.

In one embodiment, the first half shell and the second half shell are detachably connected.

In one embodiment, the plunger pump further comprises a battery assembly disposed outside the housing, the battery assembly being electrically connected to the power member.

In one embodiment, the battery assembly comprises a bracket and a battery arranged on the bracket, and the bracket is detachably connected with the shell.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a plunger pump according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of the plunger pump of FIG. 1;

FIG. 3 is an exploded view of the plunger pump of FIG. 1;

FIG. 4 is a schematic view of the transmission member of FIG. 3;

fig. 5 is a schematic structural view of the knee lever in fig. 3.

10. A housing; 11. a first half shell; 12. a second half shell; 101. a first accommodating cavity; 102. a second accommodating cavity; 103. a third accommodating cavity; 20. a plunger assembly; 21. a plunger rod; 22. a plunger barrel; 221. a water outlet; 222. a water inlet; 30. a power member; 31. a gear; 40. a transmission assembly; 41. a transmission member; 411. a drive plate; 412. an eccentric column; 42. a curved bar; 421. a curved bar body; 422. a socket joint part; 423. a ball head; 424. reinforcing ribs; 50. a battery assembly; 51. a support; 52. a battery.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Referring to fig. 1 to fig. 3, wherein fig. 1 is a schematic structural diagram of a plunger pump according to an embodiment of the present invention, fig. 2 is a schematic sectional structural diagram of the plunger pump in fig. 1, and fig. 3 is an exploded structural diagram of the plunger pump in fig. 1. An embodiment of the present application provides a plunger pump including a plunger assembly 20, a power member 30, and a transmission assembly 40. The plunger assembly 20 comprises a plunger barrel 22 and a plunger rod 21, and the plunger rod 21 is movably arranged in the plunger barrel 22; the power elements 30 are arranged on one side of the plunger assembly 20 in the radial direction of the plunger rod 21; the transmission assembly 40 comprises a transmission member 41 and a curved rod 42, the transmission member 41 is connected with the power member 30, one end of the curved rod 42 is connected with the transmission member 41, the other end of the curved rod 42 is connected with the plunger rod 21, the power member 30 is used for driving the transmission member 41 to rotate, and the transmission member 41 can drive the curved rod 42 to perform centrifugal motion by rotating so as to drive the plunger rod 21 to perform reciprocating linear motion along the plunger cylinder 22.

Specifically, the plunger assembly 20 is used for realizing water sucking and draining actions under the driving of the power element 30, wherein the plunger assembly 20 comprises a plunger barrel 22, one end of the plunger barrel 22 is provided with a water outlet 221, the peripheral wall of the plunger barrel 22 is provided with a water inlet 222, the plunger rod 21 is movably arranged in the plunger barrel 22, and when the plunger rod 21 makes a reciprocating linear motion along the axial direction of the plunger barrel 22, negative pressure can be generated, so that the water sucking and draining actions are realized. The transmission assembly 40 is used for realizing power transmission between the power element 30 and the plunger assembly 20, wherein the transmission element 41 is arranged on the same side as the power element 30 and connected with a driving shaft of the power element 30, the curved rod 42 has a certain bending radian, one end of the curved rod 42 is connected with the transmission disc 411, the other end of the curved rod is connected with one end of the plunger rod 21 far away from the water outlet 221, when the power element 30 works, the power element 30 can transmit power to the curved rod 42 through the transmission element 41, and then the plunger rod 21 can be driven by the curved rod 42 to perform reciprocating linear motion along the axial direction. In addition, in the present embodiment, the plunger pump further includes a housing 10, the housing 10 forms a main appearance structure of the plunger pump, and an installation space for installing the plunger assembly 20, the power member 30 and the transmission assembly 40 is formed inside the housing 10. Can be integrated in an organic whole with plunger subassembly 20, power part 30 and transmission assembly 40 through casing 10 for overall structure is compact, can also play the safety protection effect to the internals simultaneously, and casing 10 can generally adopt plastic part injection moulding.

When the plunger pump works, power is transmitted to the curved rod 42 through the transmission piece 41 by the power piece 30, and then the curved rod 42 drives the plunger rod 21 to do reciprocating linear motion along the plunger cylinder 22, so that water sucking and draining actions are realized. Through the mutual matching of the transmission part 41 and the curved rod 42, the power part 30 can be arranged on one side of the plunger assembly 20 side by side along the radial direction of the plunger rod 21, and compared with the traditional linear driving plunger pump, the axial length of the plunger pump on the plunger rod 21 can be effectively reduced, so that the overall occupied space is smaller, the linear driving plunger pump can be well suitable for occasions with limited axial installation space, and the application range is wider; meanwhile, the transmission piece 41 rotates to drive the curved rod 42 to perform high-speed centrifugal motion, the curved rod 42 drives the plunger rod 21 to perform reciprocating linear motion through the centrifugal motion, and the centrifugal motion of the curved rod 42 has strong explosive force, so that the plunger rod 21 can obtain larger driving force. The plunger pump of the scheme can effectively shorten the length dimension of the plunger rod 21 in the axial direction, reduce the occupied space and enable the plunger rod 21 to obtain larger driving force.

Further, referring to fig. 2, fig. 4 and fig. 5, in this embodiment, the transmission member 41 includes a transmission disc 411 and an eccentric column 412 disposed on the transmission disc 411, an axis of the eccentric column 412 is disposed deviating from a rotation axis of the transmission disc 411, the curved rod 42 includes a curved rod body 421 and a sleeve portion 422 disposed at one end of the curved rod body 421, and the sleeve portion 422 is sleeved on a periphery of the eccentric column 412. Specifically, driving plate 411 rotationally installs in casing 10 through the pivot, and eccentric post 412 is located on the quotation of driving plate 411, and curved bar 42 cup joints in the periphery of eccentric post 412 through annular portion 422 that cup joints, and when power component 30 drive driving plate 411 revolutes the rotation of axes, eccentric post 412 can drive the crank and carry out centrifugal motion, and overall structure is compact, and the transmission is reliable. Alternatively, the transmission disc 411 and the eccentric column 412 may be integrally formed, so that the overall structure is stronger, can bear larger centrifugal force, and has a longer service life.

Further, in this embodiment, the transmission disc 411 is a toothed disc, and the driving end of the power member 30 is provided with a gear 31 engaged with the toothed disc. Specifically, as shown in fig. 2, the transmission disc 411 is of a fluted disc structure, the outer edge of one face of the fluted disc provided with the eccentric column 412 is provided with a plurality of teeth along the circumferential direction, the power element 30 is provided with a rotary driving shaft, the rotary driving shaft of the power element 30 is parallel to the axial direction of the plunger rod 21, the gear 31 is connected to the rotary driving shaft of the power element 30, and the gear 31 is meshed with the teeth of the fluted disc. Can drive gear 31 when the rotatory output shaft of power part 30 rotates, and then can drive the fluted disc transmission, drive the motion of cranked rod 42 through the eccentric post 412 on the fluted disc, overall structure is compact, and transmits through gear 31 and fluted disc matched with form, can transmit bigger moment of torsion to can further strengthen drive power.

Further, please refer to fig. 2 and fig. 5, in this embodiment, the curved rod 42 further includes a ball 423 disposed at an end of the curved rod body 421 away from the socket 422, and the plunger rod 21 is provided with a ball socket connected with the ball 423. The connecting between the curved bar 42 and the plunger rod 21 is realized through the ball head 423 and the ball socket, so that a certain rotational degree of freedom is provided between the curved bar 42 and the plunger rod 21, the whole power transmission is smoother, the curved bar 42 and the plunger rod 21 can obtain a certain buffering effect, and the damage can be reduced. Optionally, the curved bar body 421, the socket 422 and the ball 423 are integrally formed.

In addition, the crankshaft 42 is subjected to high-speed centrifugal motion, so that the structural strength is required to be high. Further, as shown in fig. 5, in the present embodiment, the outer surface of the curved bar body 421 is provided with the reinforcing rib 424, the reinforcing rib 424 is consistent with the extending direction of the curved bar body 421, and the reinforcing rib 424 is provided to make the overall structural strength of the curved bar 42 higher, so that the service life of the curved bar 42 can be effectively prolonged.

Further, please refer to fig. 2 and fig. 3, based on the above embodiment, the housing 10 includes a first half shell 11 and a second half shell 12 that are matched with each other, a first accommodating cavity 101, a second accommodating cavity 102 and a third accommodating cavity 103 are defined between the first half shell 11 and the second half shell 12, the first accommodating cavity 101 and the second accommodating cavity 102 are arranged side by side, the third accommodating cavity 103 is located at the same side of the first accommodating cavity 101 and the second accommodating cavity 102, the plunger assembly 20 is accommodated in the first accommodating cavity 101, the power element 30 is accommodated in the second accommodating cavity 102, and the transmission assembly 40 is accommodated in the third accommodating cavity 103.

Specifically, the first half shell 11 and the second half shell 12 may be injection molded by injection molding, the first receiving cavity 101 has a shape corresponding to the shape of the plunger assembly 20, the second receiving cavity 102 has a shape corresponding to the shape of the power element 30, and the third receiving cavity 103 has a shape corresponding to the shape of the transmission assembly 40. When assembling, assemble plunger subassembly 20, power piece 30 and transmission assembly 40 respectively to first half shell 11 on the holding intracavity that corresponds, again with half shell 12 of second and half shell 11 lid close and fix can, easy operation is convenient, can realize the rapid Assembly between plunger subassembly 20, power piece 30 and transmission assembly 40 and the casing 10, can also guarantee assembly stability simultaneously.

The first half shell 11 and the second half shell 12 may be connected and fixed in a detachable manner (e.g., screw connection, snap connection, etc.), or in a non-detachable manner (e.g., adhesion, ultrasonic welding, etc.). Optionally, in this embodiment, the first half shell 11 and the second half shell 12 are detachably connected to each other, so as to facilitate replacement and maintenance of each component inside the housing 10. Specifically to in this embodiment, as shown in fig. 3, the periphery of the first half shell 11 is provided with a first assembling plate, the first assembling plate is provided with a first connecting hole, the periphery of the second half shell 12 is provided with a second assembling plate, the second assembling plate is provided with a second connecting hole, when assembling, the first assembling plate is abutted against the second assembling plate, the first connecting hole is abutted against the second connecting hole, and then the fastener (such as a screw, a bolt, etc.) is inserted into the first connecting hole and the second connecting hole to be locked and fixed.

In order to enable the first half shell 11 and the second half shell 12 to be accurately butted, optionally, a positioning convex part is arranged on the first half shell 11, a positioning groove is arranged on the second half shell, and when the first half shell and the second half shell are assembled, the positioning convex part and the positioning groove are mutually spliced and matched, so that the quick and accurate assembly between the two components can be realized. It is of course also possible to provide the positioning projection on the second half-shell 12 and, correspondingly, the positioning slot on the first half-shell 11. Optionally, a sealing member may be further disposed between the first half shell 11 and the second half shell 12, and a sealing connection between the first half shell 11 and the second half shell 12 is achieved through the sealing member, so as to improve the sealing performance. The sealing element includes, but is not limited to, a rubber sealing ring, a silicone sealing ring, and the like.

Further, as shown in fig. 1, in the present embodiment, the plunger pump further includes a battery assembly 50 disposed outside the housing 10, and the battery assembly 50 is electrically connected to the power member 30. By mounting the battery pack 50 outside the housing 10, the power unit 30 is supplied with electric power through the battery pack 50, and the plunger pump is more convenient to use.

Further, as shown in fig. 5, in the present embodiment, the battery assembly 50 includes a bracket 51 and a battery 52 disposed on the bracket 51, and the bracket 51 is detachably connected to the housing 10. By detachably connecting the bracket 51 to the housing 10, the battery assembly 50 can be easily attached and detached. In actual use, the user may choose to install or not install the battery assembly 50 according to actual requirements. The bracket 51 and the housing 10 are detachably connected by, but not limited to, a snap connection, a screw connection, or the like. For example, a buckle structure may be disposed on the bracket 51, and a clamping groove matched with the buckle structure is disposed on the housing 10, so that the bracket 51 and the housing 10 can be assembled by clamping the buckle structure and the clamping groove. Alternatively, the housing 10 and the bracket 51 may be respectively provided with corresponding mounting holes, and a fastening member (e.g., a screw or a bolt) may be inserted through the mounting holes to be fastened and fixed during the mounting. Optionally, the bracket 51 is detachably connected to the battery 52, so that the battery 52 can be easily removed and replaced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

The "certain body" and the "certain portion" may be a part corresponding to the "member", that is, the "certain body" and the "certain portion" may be integrally formed with the other part of the "member"; the "part" can be made separately from the "other part" and then combined with the "other part" into a whole. The expressions "a certain body" and "a certain part" in the present application are only one example, and are not intended to limit the scope of the present application for reading convenience, and the technical solutions equivalent to the present application should be understood as being included in the above features and having the same functions.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A plunger pump, comprising:

2. The plunger pump according to claim 1, wherein the transmission member comprises a transmission disc and an eccentric post arranged on the transmission disc, an axis of the eccentric post is arranged to deviate from a rotation axis of the transmission disc, the curved rod comprises a curved rod body and a sleeve joint part arranged at one end of the curved rod body, and the sleeve joint part is sleeved on the periphery of the eccentric post.

3. The plunger pump of claim 2 wherein the drive plate is a toothed plate and the drive end of the power element is provided with a gear that engages the toothed plate.

4. The plunger pump of claim 2, wherein the curved bar further comprises a ball head disposed at an end of the curved bar body remote from the socket, and the plunger rod is provided with a ball socket connected to the ball head.

5. The plunger pump according to claim 2, characterized in that the outer surface of the curved rod body is provided with reinforcing ribs, which are aligned with the extension direction of the curved rod body.

6. The plunger pump of any one of claims 1-5, further comprising a housing, wherein the plunger assembly, the power element, and the transmission assembly are contained within the housing.

7. The plunger pump of claim 6, wherein the housing comprises a first half shell and a second half shell which are matched with each other, a first accommodating cavity, a second accommodating cavity and a third accommodating cavity are defined between the first half shell and the second half shell, the first accommodating cavity and the second accommodating cavity are arranged side by side, the third accommodating cavity is positioned on the same side of the first accommodating cavity and the second accommodating cavity, the plunger assembly is accommodated in the first accommodating cavity, the power piece is accommodated in the second accommodating cavity, and the transmission assembly is accommodated in the third accommodating cavity.

8. The plunger pump of claim 7, wherein the first half shell is removably connected to the second half shell.

9. The plunger pump of claim 6, further comprising a battery assembly disposed outside the housing, the battery assembly being electrically connected to the power member.

10. The plunger pump of claim 9, wherein the battery assembly includes a bracket and a battery disposed on the bracket, the bracket being removably coupled to the housing.