CN210068436U

CN210068436U - Electric diaphragm pump

Info

Publication number: CN210068436U
Application number: CN201920768271.XU
Authority: CN
Inventors: 叶晓华
Original assignee: Shanghai Xia Feibeng Industry Co Ltd
Current assignee: Shanghai Xia Feibeng Industry Co Ltd
Priority date: 2019-05-25
Filing date: 2019-05-25
Publication date: 2020-02-14
Anticipated expiration: 2029-05-25

Abstract

The utility model discloses an electric diaphragm pump, belonging to the field of electric pumps; its technical scheme main points are that the diaphragm pump includes the switching-over valve casing and installs the connecting rod axle in the switching-over valve casing inside, and the switching-over valve casing upper surface threaded connection of diaphragm pump has the threaded rod, and the lower extreme of threaded rod stretches into the switching-over valve casing inside and is equipped with spacing post, seted up on the connecting rod axle with spacing post complex spout, and the length direction of spout is the same with the length direction of connecting rod axle. The utility model provides an easy pivoted problem that takes place in the connecting rod axle course of operation in the conventional switching-over valve case, reached and prevented that the connecting rod axle from rotating and can not cause the effect of influence to connecting rod axle work.

Description

Electric diaphragm pump

Technical Field

The utility model relates to an electric pump field, more specifically the saying so, it relates to an electric diaphragm pump.

Background

The electric diaphragm pump is a novel pump, is applied to industries such as petrifaction, ceramics, metallurgy and the like due to breakthrough development on the material of the diaphragm, and has the characteristics of no need of water filling and strong self-absorption capability. Directly separates the conveyed medium from the transmission mechanical part, so the medium can not leak outwards absolutely.

Reference may now be made to the chinese patent application publication No. CN109149430A, which discloses an electric diaphragm pump comprising: an intermediate; the turbine is rotatably arranged on the intermediate body; the left circular moving cam is arranged on the left end surface of the turbine and is linked with the turbine; the right circular moving cam is arranged on the right end face of the turbine and is linked with the turbine; the worm is meshed with the worm wheel, and the front end of the worm is rotatably arranged on the intermediate body; the driving part is arranged on the intermediate body and connected with the rear end of the worm so as to drive the worm to rotate; the left driven rod penetrates through the left side wall of the intermediate body and can move left and right relative to the left side wall of the intermediate body, and the right end of the left driven rod is attached to the left circular moving cam; the right driven rod penetrates through the right side wall of the middle body and can move left and right relative to the right side wall of the middle body, and the left end of the right driven rod is attached to the right circular moving cam.

Vertical rectangular hole has been seted up to connecting rod axle and bent axle junction to the orbit that makes the bent axle can drive connecting rod axle transverse reciprocating motion for the ellipse, but because the existence in rectangular hole, and the connecting rod axle is cylindrical, so the connecting rod axle can take place to rotate at certain angle at the in-process of motion, so can lead to the fact the influence to the work of diaphragm pump.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an electric diaphragm pump, its cooperation through spacing post and spout can be injectd the connecting rod axle, has realized preventing that the connecting rod axle from rotating and can not cause the purpose of influence to the work of connecting rod axle.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an electric diaphragm pump, is including the diaphragm pump, speed reducer and the motor that set gradually, and the diaphragm pump includes the switching-over valve casing and installs the connecting rod axle in the switching-over valve casing inside, and the switching-over valve casing upper surface threaded connection of diaphragm pump has the threaded rod, and the lower extreme of threaded rod stretches into the switching-over valve casing inside and be equipped with spacing post, the epaxial spout of having seted up with spacing post complex of connecting rod, and the length direction of spout is the same with the length direction of connecting rod axle.

Through adopting above-mentioned technical scheme, spacing post is in the spout, can avoid the connecting rod axle to take place to rotate at transverse motion's in-process connecting rod axle, and spacing post can be in the spout lateral shifting, so can not lead to the fact the influence to the work of connecting rod axle, so can prevent that the connecting rod axle from taking place to rotate, is that the diaphragm pump can normally work.

The utility model discloses further set up to: the lower surface of the limiting column is provided with a slotted hole, a fixing bolt is inserted in the slotted hole, the tail end of the fixing bolt is in threaded connection with the lower end of the threaded rod, the lower ends of the fixing bolt and the threaded rod are not tightly attached, and the limiting column can rotate along the axis of the limiting column.

Through adopting above-mentioned technical scheme, conveniently change spacing post, be convenient for change the serious spacing post of wearing and tearing, and spacing post can rotate along the axis of self, make that spacing post can be better remove in the spout, can reduce the wearing and tearing that spacing post received, increase the life of spacing post.

The utility model discloses further set up to: the upper surface of the reversing valve shell is provided with a plane, the upper end of the threaded rod is fixedly connected with a hexagonal fixing block, and the lower surface of the fixing block is attached to the plane.

Through adopting above-mentioned technical scheme, can be more convenient through the fixed block to the threaded rod application of force, the threaded rod rotates, and has seted up the plane on the reversing valve casing, makes things convenient for the installation of threaded rod.

The utility model discloses further set up to: and the two ends of the connecting rod shaft are respectively sleeved with a self-sliding shaft sleeve, and the self-sliding shaft sleeves are arranged on the reversing valve shell.

Through adopting above-mentioned technical scheme, from smooth shaft sleeve surface itself is more smooth, makes the slip of connecting rod axle more smooth and easy, reduces the wearing and tearing that the connecting rod axle received, improves the life of connecting rod axle.

The utility model discloses further set up to: the two ends of the connecting rod shaft are both provided with a fixed sleeve, and one end of the fixed sleeve, which is far away from the connecting rod shaft, is bolted with a diaphragm;

the fixed sleeve is fixedly connected with a fixed disc at one end close to the connecting rod shaft, and the fixed disc is bolted with the connecting rod shaft.

Through adopting above-mentioned technical scheme, fixed disk and connecting rod axle bolt connect, make things convenient for the installation of fixed cover, and fixed cover and diaphragm bolt connect, so conveniently link together diaphragm and connecting rod axle, improve the efficiency of work.

The utility model discloses further set up to: a plurality of fixing holes with conical cross sections are formed in the surface of the fixing disc, countersunk head bolts are inserted into the fixing holes, and the tail ends of the countersunk head bolts are in threaded connection with the connecting rod shafts.

Through adopting above-mentioned technical scheme, the countersunk head bolt is in the counter sink, can avoid the surface of countersunk head bolt protrusion fixed disk to avoid the countersunk head bolt to cause the influence to the motion of diaphragm.

The utility model discloses further set up to: the holding tank that can hold the fixed disk is seted up at the both ends of connecting rod axle.

Through adopting above-mentioned technical scheme, the holding tank can hold the fixed disk to make the fixed disk can not bulge the both ends of connecting rod axle, the event can further reduce the influence that fixed disk and countersunk head bolt led to the fact the diaphragm.

To sum up, the utility model discloses compare and have following beneficial effect in prior art:

1. the reversing valve shell is in threaded connection with a threaded rod, the lower end of the threaded rod extends into the body and is provided with a limiting post, a sliding groove matched with the limiting post is formed in the connecting rod shaft, and the length direction of the sliding groove is the same as that of the connecting rod shaft, so that the connecting rod shaft is prevented from rotating in the working process, and the working of the connecting rod shaft is not influenced;

2. the one end that the threaded rod was kept away from to spacing post has seted up heavy slotted hole, and it has fixing bolt to peg graft in the heavy slotted hole, fixing bolt's end and threaded rod threaded connection, and fixing bolt not closely laminate with the threaded rod, make spacing post can rotate along the axis of self, so can be that the better at the spout internal motion of spacing post, and reduce the wearing and tearing that spacing post received, increase the life of spacing post.

Drawings

FIG. 1 is a block diagram of an embodiment;

FIG. 2 is an exploded view of the cam according to the embodiment;

FIG. 3 is an exploded view of the highlighted link shaft of the embodiment;

FIG. 4 is a diagram illustrating the structure of the slot hole.

In the figure: 1. a diaphragm pump; 11. a diverter valve housing; 111. a plane; 12. a link shaft; 121. a self-sliding shaft sleeve; 122. a chute; 13. accommodating grooves; 14. fixing the disc; 141. a fixing hole; 142. a countersunk bolt; 15. fixing a sleeve; 16. a membrane; 17. mounting a disc; 171. installing a bolt; 18. a strip hole; 2. a speed reducer; 21. an eccentric wheel; 22. a drive shaft; 3. an electric motor; 4. a threaded rod; 41. a limiting column; 42. a fixed block; 43. sinking the slot hole; 44. and (5) fixing the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Example (b): an electric diaphragm pump, as shown in fig. 1, comprises a diaphragm pump 1, a speed reducer 2 and a motor 3, wherein the speed reducer 2 is arranged between the motor 3 and the diaphragm pump 1; the motor 3 can provide power for the operation of the diaphragm pump 1, and the speed reducer 2 can reduce the rotating speed, so that the diaphragm pump 1 can be driven to operate better.

As shown in fig. 2 and fig. 3, the diaphragm pump 1 includes a connecting rod shaft 12 disposed in a reversing valve housing 11, receiving grooves 13 are disposed at both ends of the connecting rod shaft 12, a fixing plate 14 is bolted in the receiving grooves 13, a fixing sleeve 15 is fixedly connected to a side wall of the fixing plate 14 away from the connecting rod shaft 12, and the fixing sleeve 15 is located at an axis of the fixing plate 14; the end of the fixed sleeve 15 far away from the fixed plate 14 is bolted with a membrane 16; the transverse reciprocating motion of the link shaft 12 can control the movement of the diaphragm 16, thereby enabling the operation of the diaphragm pump 1.

As shown in fig. 2 and 3, the mounting plates 17 are disposed on both sides of the diaphragm 16, the mounting plate 17 on the side of the diaphragm 16 away from the connecting rod shaft 12 is inserted with the mounting bolt 171, and the end of the mounting bolt 171 passes through the diaphragm 16 and the mounting plate 17 and the fixing sleeve 15 are screwed together at the other end, so that the diaphragm 16 can be stably mounted on the connecting rod shaft 12 by the cooperation of the mounting plate 17 and the mounting bolt 171.

As shown in fig. 2 and 3, a plurality of fixing holes 141 with a tapered cross section are formed in the surface of the fixing plate 14, the fixing holes 141 are uniformly distributed around the axis of the fixing plate 14, countersunk bolts 142 are inserted into the fixing holes 141, and the ends of the countersunk bolts 142 are in threaded connection with the connecting rod shaft 12, so that the fixing plate 14 can be stably mounted on the connecting rod shaft 12, and the countersunk bolts 142 and the accommodating grooves 13 are matched, so that the countersunk bolts 142 and the fixing plate 14 cannot protrude out of the surface of the connecting rod shaft 12, and the motion of the diaphragm 16 is not affected.

As shown in fig. 2 and 3, the two ends of the link shaft 12 are further sleeved with self-sliding bushings 121, the self-sliding bushings 121 are fixedly connected with the reversing valve housing 11, the link shaft 12 can slide transversely in the self-sliding bushings 121, the surfaces of the self-sliding bushings 121 are smooth, the link shaft 12 can slide more smoothly, and abrasion of the link shaft 12 on the reversing valve housing 11 can be reduced.

As shown in fig. 2 and 3, an output shaft of the motor 3 is fixedly connected with an input shaft of the speed reducer 2, a plurality of output shafts of the speed reducer 2 extend into the reversing valve housing 11, an eccentric wheel 21 is fixedly connected to an end portion of the output shaft, a driving shaft 22 is fixedly connected to a surface of the eccentric wheel 21 away from the speed reducer 2, the driving shaft 22 is located at an eccentric position of the eccentric wheel 21, an axis of the eccentric wheel 21 is perpendicular to an axis of the connecting rod shaft 12, a vertical elongated hole 18 is formed in the connecting rod shaft 12, and the driving shaft 22 is located in the elongated hole 18; the motor 3 drives the eccentric wheel 21 to rotate, so that the motion track of the driving shaft 22 is elliptical, and one period of rotation of the driving shaft 22 can drive the connecting rod shaft 12 to reciprocate once, thereby driving the diaphragm 16 to move.

As shown in fig. 3, a plane 111 is formed on the circumferential surface of the reversing valve housing 11, a threaded rod 4 is connected to the plane 111 in a threaded manner, a limit post 41 is arranged at the lower end of the threaded rod 4, a sliding groove 122 matched with the limit post 41 is formed on the circumferential surface of the connecting rod shaft 12, and the length direction of the sliding groove 122 is the same as the length direction of the connecting rod shaft 12; because the connecting rod shaft 12 is cylindrical, the connecting rod shaft 12 is easy to rotate in the moving process, so that the diaphragm 16 is twisted, the use of the diaphragm 16 is influenced, and the limiting column 41 is matched with the sliding groove 122, so that the connecting rod shaft 12 can be prevented from rotating, and meanwhile, the transverse movement of the connecting rod shaft 12 cannot be hindered.

As shown in fig. 1 and 3, the hexagonal fixing block 42 is fixedly connected to the upper end of the threaded rod 4, the lower surface of the fixing block 42 is attached to the plane 111, the fixing block 42 can more preventively apply force to the threaded rod 4, the threaded rod 4 is prevented from rotating, and the working efficiency is improved.

As shown in fig. 4, the sunk groove hole 43 is opened to the one end that threaded rod 4 was kept away from to spacing post 41, and it has fixing bolt 44 to peg graft in the sunk groove hole 43, fixing bolt 44's the terminal and the lower extreme threaded connection of threaded rod 4, and spacing post 41 can rotate along the axis of self, conveniently changes spacing post 41, and spacing post 41 can rotate, make sliding in spout 122 that spacing post 41 can be better, reduce the influence that causes when spacing post 41 moves connecting rod shaft 12.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an electric diaphragm pump, includes diaphragm pump (1), speed reducer (2) and motor (3) that set gradually, its characterized in that: diaphragm pump (1) includes the switching-over valve case (11) and installs connecting rod axle (12) inside switching-over valve case (11), the switching-over valve case (11) upper surface threaded connection of diaphragm pump (1) has threaded rod (4), the lower extreme of threaded rod (4) stretches into switching-over valve case (11) inside and is equipped with spacing post (41), seted up on connecting rod axle (12) with spacing post (41) complex spout (122), and the length direction of spout (122) is the same with the length direction of connecting rod axle (12).

2. An electric diaphragm pump according to claim 1, characterized in that: the lower surface of the limiting column (41) is provided with a sunken slotted hole (43), a fixing bolt (44) is inserted in the sunken slotted hole (43), and the tail end of the fixing bolt (44) is in threaded connection with the lower end of the threaded rod (4).

3. An electric diaphragm pump according to claim 1, characterized in that: the upper surface of the reversing valve shell (11) is provided with a plane (111), the upper end of the threaded rod (4) is fixedly connected with a hexagonal fixing block (42), and the lower surface of the fixing block (42) is attached to the plane (111).

4. An electric diaphragm pump according to claim 1, characterized in that: two ends of the connecting rod shaft (12) are sleeved with self-sliding shaft sleeves (121), and the self-sliding shaft sleeves (121) are installed on the reversing valve shell (11).

5. An electric diaphragm pump according to claim 1, characterized in that: the two ends of the connecting rod shaft (12) are respectively provided with a fixed sleeve (15), and one end of the fixed sleeve (15) far away from the connecting rod shaft (12) is bolted with a diaphragm (16);

one end of the fixed sleeve (15) close to the connecting rod shaft (12) is fixedly connected with a fixed disc (14), and the fixed disc (14) is bolted with the connecting rod shaft (12).

6. An electric diaphragm pump according to claim 5, characterized in that: the surface of the fixed disc (14) is provided with a plurality of fixing holes (141) with conical cross sections, countersunk head bolts (142) are inserted into the fixing holes (141), and the tail ends of the countersunk head bolts (142) are in threaded connection with the connecting rod shaft (12).

7. An electric diaphragm pump according to claim 5, characterized in that: the two ends of the connecting rod shaft (12) are provided with accommodating grooves (13) capable of accommodating the fixed disc (14).