CN215170664U

CN215170664U - Diaphragm pump with good sealing performance

Info

Publication number: CN215170664U
Application number: CN202121254028.XU
Authority: CN
Inventors: 何伟明
Original assignee: Enping Jiewei Innovative Material Co ltd
Current assignee: Enping Jiewei Innovative Material Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-14
Anticipated expiration: 2031-06-07

Abstract

The utility model discloses a better diaphragm pump of leakproofness relates to pneumatic diaphragm pump equipment technical field, including trunk line, air cavity, diaphragm, limiter, power chamber, push rod, servo motor, carousel, movable rod, lead screw, through-hole, disc, sealing washer, play liquid tank, advance liquid case, cavity, movable block, pressure ball, dead lever, arc piece, seal block, connecting rod, installation pole, buffer board and buffer spring. The utility model discloses a set up push rod and pressure ball, when the pressure ball moves downwards, the outer wall in close contact with of seal block and pressure ball carries out sealing work to advancing the liquid case and going out the liquid case, avoids the device gap to appear, has guaranteed the working effect of device, and through setting up buffer board and buffer spring, liquid promotes the buffer board and moves left, and buffer spring is compressed, plays absorbing effect, avoids the diaphragm during operation to cause the impact to the trunk line, has guaranteed the security that the device used.

Description

Diaphragm pump with good sealing performance

Technical Field

The utility model relates to a pneumatic diaphragm pump equipment technical field specifically is a better diaphragm pump of leakproofness.

Background

The pneumatic diaphragm pump is a novel conveying machine adopting compressed air as a power source, and can pump out and suck up various corrosive liquids, such as strong acid, strong alkali and other strong corrosive media. The pneumatic diaphragm pump adopts chloroprene rubber, fluororubber, nitrile rubber, polytetrafluoroethylene, poly-tetra-hexaethylene and the like according to different liquid media so as to meet the requirements of different users. The pneumatic diaphragm pump is mainly characterized in that the pneumatic diaphragm pump does not need to be filled with water, can pump flowing liquid and convey some fluid media with particles or some media which are difficult to flow, changes the volume of a working chamber by means of reciprocating fluctuation of a diaphragm so as to realize the work of sucking and discharging the liquid, and has a plurality of advantages of conveying machines such as a self-sucking pump, a shield pump, an impurity pump and the like.

The existing pneumatic diaphragm pump generally selects a pressure ball as an inlet and outlet check valve for use, and when fluid with particles is conveyed, the pressure ball is easily clamped by small particles, so that the sealing effect of the pressure ball is reduced, a material is pressed back to a feed inlet when the material is discharged, and the working effect of the device is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a better diaphragm pump of leakproofness to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a diaphragm pump with better sealing performance comprises a main pipeline, wherein an air cavity is arranged on one side of the outer wall of the main pipeline, the main pipeline is communicated with the air cavity, a diaphragm is arranged on the inner wall of the air cavity in a matching manner, a limiter is arranged on one side, away from the main pipeline, of the outer wall of the air cavity, a power mechanism is arranged on one side, away from the limiter, of the outer wall of the diaphragm, a fixing mechanism is arranged on one side, away from the limiter, of the outer wall of the diaphragm, a liquid outlet box is arranged at the top end of the main pipeline, a liquid inlet box is arranged at the bottom end of the main pipeline, cavities are formed in the liquid outlet box and the liquid inlet box, the cavities are communicated with the main pipeline, connecting channels are symmetrically arranged on one side, away from the outer wall of the liquid outlet box and the liquid inlet box, two sides of the inner wall of the cavities are provided with a same sliding-connected movable block, a pressure ball in rotating connection is arranged at the center of the bottom of the movable block, fixing rods are symmetrically arranged on two sides of the pressure ball, the cavity inner wall bottom bilateral symmetry is equipped with sliding connection's arc piece, two the adjacent one side matching of arc piece outer wall is equipped with sealed piece, the arc piece is kept away from sealed piece one side is equipped with the connecting rod of rotation connection, connecting rod one end with the dead lever bottom is rotated and is connected, the trunk line inside in fixed establishment one side is equipped with buffer gear.

Furthermore, power unit includes the power chamber, the power chamber with the air cavity intercommunication, power intracavity wall matches and is equipped with sliding connection's push rod, push rod one end extend to inside the air cavity and with limiter fixed connection, power intracavity wall in push rod one side is equipped with servo motor, servo motor output shaft cover is equipped with the carousel, carousel outer wall one side is equipped with the movable rod of rotation connection, movable rod one end with the push rod rotates to be connected, drives the left and right sides reciprocating motion of push rod.

Further, the fixing mechanism comprises a screw rod, the screw rod is rotatably connected with the air cavity, a through hole matched with the screw rod is formed in one side, close to the diaphragm, of the outer wall of the push rod, a disc is sleeved on one side, far away from the through hole, of the outer wall of the screw rod, a sealing ring is arranged on one side, close to the diaphragm, of the outer wall of the disc, and the push rod and the diaphragm are tightly fixed.

Furthermore, the limiter is internally provided with a through groove matched with the screw rod, the through hole is internally provided with a screw rod nut matched with the screw rod, the through groove ensures the stability of the screw rod during movement, and the screw rod moves by arranging the screw rod nut.

Further, the inner wall of the cavity is provided with a slide rail matched with the movable block, the bottom of the fixed rod is provided with a ball bearing matched with the connecting rod, the slide rail ensures the stability of the movable block during movement, and the ball bearing ensures the smooth operation of the connecting rod during operation.

Further, buffer gear includes two installation poles, two installation pole symmetry set up in trunk line inner wall one side, two installation pole outer wall in the inside cover of trunk line is equipped with same sliding connection's buffer board, the buffer board outer wall is close to trunk line inner wall one side evenly is equipped with a plurality of buffer spring, buffer spring one end with trunk line inner wall fixed connection cushions the pressure that produces when diaphragm moves.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a set up push rod, diaphragm, arc piece and pressure ball, when the pressure ball moves downwards, promote two arc pieces and be close to each other, the outer wall in close contact with of seal block and pressure ball, two seal blocks and the cooperation of pressure ball, to the work of sealing of liquid inlet box and play liquid tank, avoid the tiny particle to block the pressure ball to make the device appear the gap, guaranteed the working effect of device.

2. The utility model discloses a set up buffer board and buffer spring, liquid at first contacts with the buffer board, and the buffer board moves left, and buffer spring is compressed, plays absorbing effect, avoids diaphragm during operation to cause the impact to the trunk line, has guaranteed the security of device use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a front cross-sectional view of the present invention in its entirety;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the present invention at B of FIG. 1;

fig. 4 is an enlarged schematic view of fig. 1 at C according to the present invention;

in the figure: 1. a main pipeline; 2. an air cavity; 3. a diaphragm sheet; 4. a limiter; 5. a power cavity; 6. a push rod; 7. a servo motor; 8. a turntable; 9. a movable rod; 10. a screw rod; 11. a through hole; 12. a disc; 13. a seal ring; 14. a liquid outlet box; 15. a liquid inlet tank; 16. a cavity; 17. a movable block; 18. a pressure ball; 19. fixing the rod; 20. an arc-shaped block; 21. a sealing block; 22. a connecting rod; 23. mounting a rod; 24. a buffer plate; 25. a buffer 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 work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a diaphragm pump with better sealing performance comprises a main pipeline 1, wherein an air cavity 2 is arranged on one side of the outer wall of the main pipeline 1, the main pipeline 1 is communicated with the air cavity 2, a diaphragm 3 is arranged on the inner wall of the air cavity 2 in a matching manner, a limiter 4 is arranged on one side, far away from the main pipeline 1, of the outer wall of the diaphragm 3, a power mechanism is arranged on one side, far away from the main pipeline 1, of the outer wall of the air cavity 2, the power mechanism comprises a power cavity 5, the power cavity 5 is communicated with the air cavity 2, a push rod 6 in sliding connection is arranged on the inner wall of the power cavity 5 in a matching manner, one end of the push rod 6 extends into the air cavity 2 and is fixedly connected with the limiter 4, a servo motor 7 is arranged on one side, close to the push rod 6, of the inner wall of the power cavity 5 is sleeved with a rotary table 8, a movable rod 9 in rotary connection is arranged on one side of the outer wall of the rotary table 8, one end of the movable rod 9 is in rotary connection with the push rod 6, a fixing mechanism is arranged on one side of the outer wall of the diaphragm 3, which is far away from the limiter 4, the fixing mechanism comprises a lead screw 10, the lead screw 10 is rotatably connected with the air cavity 2, one side of the outer wall of the push rod 6, which is close to the diaphragm 3, is provided with a through hole 11 matched with the lead screw 10, one side of the outer wall of the lead screw 10, which is far away from the through hole 11, is sleeved with a disc 12, one side of the outer wall of the disc 12, which is close to the diaphragm 3, is provided with a sealing ring 13, the top end of the main pipeline 1 is provided with a liquid outlet box 14, the bottom end of the main pipeline 1 is provided with a liquid inlet box 15, cavities 16 are respectively arranged in the liquid outlet box 14 and the liquid inlet box 15, the cavities 16 are communicated with the main pipeline 1, connecting channels are symmetrically arranged on one side of the outer wall of the liquid outlet box 14 and the outer wall of the liquid inlet box 15, two sides of the inner wall of the cavity 16 are provided with the same sliding-connected movable block 17, the center of the bottom of the movable block 17 is provided with a pressure ball 18 which is rotatably connected, the movable block 17 bottom in 18 bilateral symmetry of pressure ball is equipped with

dead lever

19, 16 inner walls of cavity bottom bilateral symmetry are equipped with sliding connection's arc piece 20, two the adjacent one side matching of 20 outer walls of arc piece is equipped with seal block 21, arc piece 20 is kept away from seal block 21 one side is equipped with the connecting rod 22 of rotating the connection, connecting rod 22 one end with the dead lever 19 bottom is rotated and is connected.

The limiter 4 is internally provided with a through groove matched with the screw rod 10, the through hole 11 is internally provided with a screw rod nut matched with the screw rod 10, the through groove limits the moving direction of the screw rod 10, the stability of the screw rod 10 during moving is ensured, and the screw rod 10 and the screw rod nut rotate relatively, so that the screw rod 10 is driven to move towards the through hole 11.

The inner wall of the cavity 16 is provided with a slide rail matched with the movable block 17, the bottom of the fixed rod 19 is provided with a ball bearing matched with the connecting rod 22, the slide rail limits the moving direction of the movable block 17 and the moving direction of the movable block 17, the ball bearing is arranged to replace the rotation, and the smooth operation of the connecting rod 22 during the rotation is ensured.

The implementation mode is specifically as follows: when the device is used, by arranging the push rod 6, the diaphragm 3, the arc-shaped block 20 and the pressure ball 18, during installation, the screw rod 10 is aligned with the through hole 11, the disc 12 is manually rotated to drive the screw rod 10 to move towards the inside of the through hole 11, the diaphragm 3, the limiter 4 and the push rod 6 are fixed through the screw rod 10, after a certain distance, the sealing ring 13 is contacted with the outer wall of the diaphragm 3 to play a sealing role, the limiter 4 is used for avoiding overlarge local deformation of the diaphragm 3 and ensuring the safety of the device, during work, the servo motor 7 starts working to drive the turntable 8 to move, the movable rod 9 moves along with the movement, so as to drive the push rod 6 to reciprocate left and right, the diaphragm 3 reciprocates left and right, when the diaphragm 3 moves right, the main pipeline 1 starts to suck liquid due to the air pressure effect, the pressure ball 18 in the liquid outlet box 14 moves downwards due to the pressure, the liquid outlet box 14 is sealed, the pressure ball 18 in the liquid inlet box 15 moves upwards, liquid is sucked into the main pipeline 1 through the connecting channel and the liquid inlet box 15 to finish liquid suction work, when the diaphragm 3 moves downwards, the pressure ball 18 in the liquid inlet box 15 moves downwards due to pressure action to block the liquid inlet box 15, the pressure ball 18 in the liquid outlet box 14 moves upwards to discharge redundant liquid through the liquid outlet box 14 and the connecting channel, liquid suction and liquid discharge work is realized through reciprocating motion of the diaphragm 3, when the pressure ball 18 moves downwards, the movable block 17 moves downwards along with the pressure ball, so that the two fixing rods 19 are driven to move downwards, the connecting rod 22 moves along with the fixing rods 19 to push the two arc-shaped blocks 20 to be close to each other, the two arc-shaped blocks 20 move to one side of the pressure ball 18 to push the sealing block 21 to be in close contact with the outer wall of the pressure ball 18, two sealing blocks 21 and pressure ball 18 cooperation carry out sealing work to liquid inlet box 15 and play liquid box 14, avoid the tiny particle to block pressure ball 18 and make the device appear the gap, have guaranteed the working effect of device.

Referring to fig. 1 and 4, the present invention provides a technical solution: the utility model provides a better diaphragm pump of leakproofness, still including set up in 1 inside buffer gear of trunk line, buffer gear is located fixed establishment one side, buffer gear includes two installation poles 23, two installation pole 23 symmetry set up in 1 inner wall one side of trunk line, two installation pole 23 outer wall in 1 inside cover of trunk line is equipped with same sliding connection's buffer board 24, the buffer board 24 outer wall is close to 1 inner wall one side of trunk line evenly is equipped with a plurality of buffer spring 25, buffer spring 25 one end with 1 inner wall fixed connection of trunk line.

The implementation mode is specifically as follows: during the use, through setting up buffer board 24 and buffer spring 25, go on when diaphragm 3 goes on left, the inside liquid that is located air cavity 2 is pushed to the inside of trunk line 1, cause the impact to trunk line 1, influence the security of device, when diaphragm 3 promotes liquid and moves left, liquid at first contacts with buffer board 24, installation pole 23 plays limiting displacement to buffer board 24's direction of motion, buffer board 24 moves left, buffer spring 25 is compressed, play absorbing effect, avoid diaphragm 3 during operation to cause the impact to trunk line 1, the security of device use has been guaranteed.

The utility model discloses a theory of operation:

referring to the attached drawings 1-3 of the specification, by arranging the push rod 6, the diaphragm 3, the arc blocks 20 and the pressure ball 18, when the pressure ball 18 moves downwards, the two arc blocks 20 are pushed to be close to each other, the sealing blocks 21 are in close contact with the outer wall of the pressure ball 18, the two sealing blocks 21 are matched with the pressure ball 18, the liquid inlet box 15 and the liquid outlet box 14 are sealed, the pressure ball 18 is prevented from being clamped by small particles, gaps are prevented from appearing in the device, and the working effect of the device is ensured.

Further, referring to the attached drawings 1 and 4 of the specification, by arranging the buffer plate 24 and the buffer spring 25, liquid firstly contacts with the buffer plate 24, the buffer plate 24 moves leftwards, the buffer spring 25 is compressed, the shock absorption effect is achieved, the impact on the main pipe 1 when the diaphragm 3 works is avoided, and the use safety of the device is guaranteed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a better diaphragm pump of leakproofness, includes trunk line (1), its characterized in that: an air cavity (2) is arranged on one side of the outer wall of the main pipeline (1), the main pipeline (1) is communicated with the air cavity (2), a diaphragm (3) is arranged on the inner wall of the air cavity (2) in a matching manner, a limiter (4) is arranged on one side, far away from the main pipeline (1), of the outer wall of the diaphragm (3), a power mechanism is arranged on one side, far away from the main pipeline (1), of the outer wall of the air cavity (2), a fixing mechanism is arranged on one side, far away from the limiter (4), of the outer wall of the diaphragm (3), a liquid outlet box (14) is arranged at the top end of the main pipeline (1), a liquid inlet box (15) is arranged at the bottom end of the main pipeline (1), cavities (16) are formed in the liquid outlet box (14) and the liquid inlet box (15), the cavities (16) are communicated with the main pipeline (1), and connecting channels are symmetrically arranged on one sides, far away from the outer walls of the liquid outlet box (14) and the liquid inlet box (15), cavity (16) inner wall both sides are equipped with same sliding connection's movable block (17), movable block (17) bottom center is equipped with rotates pressure ball (18) of connecting, movable block (17) bottom in pressure ball (18) bilateral symmetry is equipped with dead lever (19), cavity (16) inner wall bottom bilateral symmetry is equipped with sliding connection's arc piece (20), two the adjacent one side matching of arc piece (20) outer wall is equipped with seal block (21), arc piece (20) are kept away from seal block (21) one side is equipped with rotates connecting rod (22) of connecting, connecting rod (22) one end with dead lever (19) bottom is rotated and is connected, trunk line (1) inside in fixed establishment one side is equipped with buffer gear.

2. A diaphragm pump having a good sealing performance according to claim 1, wherein: power unit includes power chamber (5), power chamber (5) with air cavity (2) intercommunication, power chamber (5) inner wall matching is equipped with sliding connection's push rod (6), push rod (6) one end extend to air cavity (2) inside and with limiter (4) fixed connection, power chamber (5) inner wall in push rod (6) one side is equipped with servo motor (7), servo motor (7) output shaft cover is equipped with carousel (8), carousel (8) outer wall one side is equipped with movable rod (9) of rotation connection, movable rod (9) one end with push rod (6) rotate and are connected.

3. A diaphragm pump having a good sealing performance according to claim 2, wherein: the fixing mechanism comprises a screw rod (10), the screw rod (10) is rotatably connected with the air cavity (2), a through hole (11) matched with the screw rod (10) is formed in one side, close to the diaphragm (3), of the outer wall of the push rod (6), a disc (12) is sleeved on one side, away from the through hole (11), of the outer wall of the screw rod (10), and a sealing ring (13) is arranged on one side, close to the diaphragm (3), of the outer wall of the disc (12).

4. A diaphragm pump having a good sealing performance according to claim 3, wherein: the limiting device (4) is internally provided with a through groove matched with the screw rod (10), and the through hole (11) is internally provided with a screw rod nut matched with the screw rod (10).

5. A diaphragm pump having a good sealing performance according to claim 1, wherein: the inner wall of the cavity (16) is provided with a slide rail matched with the movable block (17), and the bottom of the fixed rod (19) is provided with a ball bearing matched with the connecting rod (22).

6. A diaphragm pump having a good sealing performance according to claim 1, wherein: buffer gear includes two installation poles (23), two installation pole (23) symmetry set up in trunk line (1) inner wall one side, two installation pole (23) outer wall in trunk line (1) inside cover is equipped with same sliding connection's buffer board (24), buffer board (24) outer wall is close to trunk line (1) inner wall one side evenly is equipped with a plurality of buffer spring (25), buffer spring (25) one end with trunk line (1) inner wall fixed connection.