CN221299388U

CN221299388U - High-precision bellows metering pump

Info

Publication number: CN221299388U
Application number: CN202322961402.5U
Authority: CN
Inventors: 孟宪刚
Original assignee: Shanghai Jinruiheng Fluid Technology Co ltd
Current assignee: Shanghai Jinruiheng Fluid Technology Co ltd
Priority date: 2023-11-02
Filing date: 2023-11-02
Publication date: 2024-07-09
Anticipated expiration: 2033-11-02

Abstract

The utility model relates to a high-precision bellows type metering pump, which comprises a base, wherein a case is fixed on the upper surface of the base, a shell is fixed on the left side of the case, a leakage-proof mechanism is arranged in the shell and used for ensuring the sealing of electrolyte in a pump body, a driving mechanism is arranged on the right side of the case and used for realizing quantitative filling of the electrolyte, and a partition plate is fixed between the inner walls of the opposite sides of the case. This high accuracy bellows formula metering pump, through the cooperation of bellows bag, can let the electrolyte flow only in the inside of bellows bag in shrink and the in-process of extension, thereby can avoid the electrolyte to leak outside the pump when filling, prevent that the phenomenon such as electrolyte crystallization and pollution scene from taking place, through the cooperation of import valve and outlet valve, can follow the inside of sucking pump head and bellows bag with the electrolyte in the feed liquor pipe when bellows bag extends, thereby let out the electrolyte when bellows bag compresses, accomplish the filling of electrolyte.

Description

High-precision bellows metering pump

Technical Field

The utility model relates to the technical field of metering pumps, in particular to a high-precision bellows type metering pump.

Background

The metering pump is also called a constant delivery pump or a proportional pump, can meet the requirements of various strict technological processes, can be used for continuously adjusting the flow rate within the range of 0-100 percent, and is used for conveying liquid (particularly corrosive liquid) as a special volumetric pump.

The existing common filling pump is mainly a plunger pump, electrolyte is sucked and discharged through the reciprocating motion of a motor control plunger, so that quantitative conveying of the electrolyte is realized, but the plunger of the existing common plunger pump cannot enable liquid in the pump to be completely sealed even though the machining precision is higher, and the conditions of liquid seepage and leakage, electrolyte crystallization, pollution to site environment and the like can occur after long-time use, so that the high-precision bellows type metering pump is provided to solve the problems.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a high-precision bellows type metering pump which is provided with a function of completely isolating electrolyte from the external environment, and can ensure the sealing of the electrolyte in a pump body even if used for a long time so as to prevent the conditions of seepage and leakage, electrolyte crystallization, pollution to site environment and the like and ensure the stability of physical properties and chemical properties of the electrolyte.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the high-precision bellows type metering pump comprises a base, wherein an organic case is fixed on the upper surface of the base, a shell is fixed on the left side of the case, a leakage-proof mechanism is arranged in the shell and used for guaranteeing the sealing of electrolyte in a pump body, a driving mechanism is arranged on the right side of the case and used for realizing quantitative filling of the electrolyte, and a partition plate is fixed between the inner walls of the opposite sides of the case;

The leak protection mechanism is including fixing the left pump head at the shell, the right side of pump head is fixed with the bellows bag, the top intercommunication of pump head has the outlet valve, the other end intercommunication of outlet valve has the drain pipe, the bottom intercommunication of pump head has the inlet valve, the other end intercommunication of inlet valve has the feed liquor pipe.

Further, the shape of shell is the cuboid that inside cavity and left side wall were missed, the length sum of shell and quick-witted case and the length looks adaptation of base.

Further, the length and the width of the right side of the pump head are matched with the width and the height of the shell, and the pump head is fixedly connected with the shell through bolts.

Further, the left side of the bellows bag is communicated with the pump head, and the right side of the bellows bag is in a closed state.

Further, actuating mechanism is including fixing the motor on quick-witted case right side, the output shaft of motor runs through and extends to the inside of machine case, and is fixed with the lead screw, the other end of lead screw passes through the bearing with the right side of baffle and rotates to be connected, the outside threaded connection of lead screw has the nut, the left side of nut is fixed with the connecting rod, the other end of connecting rod runs through and extends to the left side of baffle, and is fixed with the connecting block, the other end of connecting block is fixed with the push rod, the other end of push rod runs through and extends to the inside of shell, and with the right side fixed connection of bellows bag.

Further, the number of the connecting rods is two, and the connecting rods are distributed vertically symmetrically through the central axis of the nut.

Further, a guide block is fixed on the right side of the shell, and the outer side of the push rod is in sliding connection with the inner side of the guide block.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. This high accuracy bellows formula metering pump, through the cooperation of bellows bag, can let the electrolyte flow only in the inside of bellows bag in shrink and the in-process of extension, thereby can avoid the electrolyte to leak outside the pump when filling, prevent that the phenomenon such as electrolyte crystallization and pollution scene from taking place, through the cooperation of import valve and outlet valve, can follow the inside of sucking pump head and bellows bag with the electrolyte in the feed liquor pipe when bellows bag extends, thereby let out the electrolyte when bellows bag compresses, accomplish the filling of electrolyte.

2. This high accuracy bellows formula measuring pump through the cooperation of motor, can drive the lead screw and rotate to drive the nut and remove, through the removal of nut, can drive the connecting rod and remove, thereby drive the connecting block and remove, through the removal of connecting block, can drive the push rod and remove, thereby drive the bellows bag and shrink and extend, so as to carry out high accuracy filling to the electrolyte.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a leak-proof mechanism of the present utility model;

FIG. 3 is a schematic diagram of a driving mechanism according to the present utility model.

In the figure: 1 base, 2 machine cases, 3 shells, 4 leakage-proof mechanisms, 401 pump heads, 402 bellows bags, 403 outlet valves, 404 liquid outlet pipes, 405 inlet valves, 406 liquid inlet pipes, 5 driving mechanisms, 501 motors, 502 screw rods, 503 nuts, 504 connecting rods, 505 connecting blocks, 506 push rods and 6 partition plates.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, a high-precision bellows type metering pump in this embodiment includes a base 1, an upper surface of the base 1 is fixed with a casing 2, a left side of the casing 2 is fixed with a casing 3, a leak-proof mechanism 4 is arranged in the casing 3 for ensuring the sealing of electrolyte in a pump body, preventing the electrolyte from leaking, ensuring the stability of physical and chemical properties of the electrolyte, a driving mechanism 5 is arranged on a right side of the casing 2 for realizing quantitative filling of the electrolyte, improving the filling precision of the electrolyte, and a partition 6 is fixed between inner walls of opposite sides of the casing 2.

The shape of the shell 3 is a cuboid with a hollow inside and a missing left side wall, and the sum of the lengths of the shell 3 and the case 2 is matched with the length of the base 1.

Referring to fig. 2, in order to prevent leakage of electrolyte and ensure stability of physical and chemical properties of electrolyte, the leakage prevention mechanism 4 in this embodiment includes a pump head 401 fixed on the left side of a housing 3, a bellows capsule 402 fixed on the right side of the pump head 401, an outlet valve 403 connected to the top end of the pump head 401, a liquid outlet pipe 404 connected to the other end of the outlet valve 403, an inlet valve 405 connected to the bottom end of the pump head 401, and a liquid inlet pipe 406 connected to the other end of the inlet valve 405, wherein when the bellows capsule 402 is elongated, the inlet valve 405 is opened, electrolyte is pumped into the pump head 401 and the bellows capsule 402 from the liquid inlet pipe 406, and when the bellows capsule 402 is compressed, the inlet valve 405 is closed, the outlet valve 403 is opened, and electrolyte inside the bellows capsule 402 and the pump head 401 is discharged from the liquid outlet pipe 404.

In this example, the length and width of the right side of the pump head 401 are adapted to the width and height of the housing 3, and the pump head 401 is fixedly connected with the housing 3 through bolts so as to detach the pump head 401, thereby repairing and maintaining the pump head 401 and the bellows capsule 402, the left side of the bellows capsule 402 is communicated with the pump head 401, and the right side of the bellows capsule 402 is in a closed state, so that the electrolyte only flows inside the bellows capsule 402.

Referring to fig. 3, in order to improve the filling accuracy of the electrolyte, the driving mechanism 5 in this embodiment includes a motor 501 fixed on the right side of the chassis 2, an output shaft of the motor 501 penetrates and extends to the inside of the chassis 2, and is fixed with a screw rod 502, the output shaft of the motor 501 drives the screw rod 502 to rotate, the other end of the screw rod 502 is rotatably connected with the right side of the diaphragm 6 through a bearing, a nut 503 is screwed on the outer side of the screw rod 502, the screw rod 502 drives the nut 503 to move, a connecting rod 504 is fixed on the left side of the nut 503, the nut 503 drives the connecting rod 504 to move, the other end of the connecting rod 504 penetrates and extends to the left side of the diaphragm 6, and a connecting block 505 is fixed, the connecting rod 504 moves on the diaphragm 6, so that the angle of the nut 503 is limited, thereby avoiding the nut 503 from generating an angular offset due to the rotation of the screw rod 502, the connecting rod 504 moves to drive the connecting block 505, the other end of the connecting rod 505 is fixed with a push rod 506, the other end of the push rod 506 penetrates and extends to the inside of the housing 3, and is fixedly connected with the right side of the bellows 402, the connecting block 505 drives the push rod 506 to move, the push rod 506 supports and guides the push rod 506, and the push rod 506 drives the bellows 402 to shrink and extend.

In this example, the number of the connecting rods 504 is two, and the connecting rods are symmetrically distributed up and down along the central axis of the nut 503, so that the connecting block 505 is kept stable during movement, a guide block is fixed on the right side of the housing 3, the outer side of the push rod 506 is slidably connected with the inner side of the guide block, and the movement of the push rod 506 is guided, so that the push rod 506 is prevented from being deviated.

The working principle of the embodiment is as follows:

(1) When electrolyte is filled, the motor 501 is turned on firstly, the output shaft of the motor 501 drives the screw rod 502 to rotate, the screw rod 502 drives the nut 503 to move, the nut 503 drives the connecting rod 504 to move, the connecting rod 504 moves on the partition plate 6 and can limit the angle of the nut 503, so that the nut 503 is prevented from angular deviation caused by rotation of the screw rod 502, the connecting rod 504 moves to drive the connecting block 505 to move, the connecting block 505 drives the push rod 506 to move, the connecting block 505 supports and guides the push rod 506, and the push rod 506 drives the bellows capsule 402 to shrink and stretch.

(2) The push rod 506 drives the bellows bag 402 to extend, at this time, the inlet valve 405 is opened, electrolyte is pumped into the pump head 401 and the bellows bag 402 from the liquid inlet pipe 406, then the motor 501 is controlled to rotate reversely, the push rod 506 drives the bellows bag 402 to compress, at this time, the inlet valve 405 is closed, the outlet valve 403 is opened, electrolyte in the bellows bag 402 and the pump head 401 is led out from the liquid outlet pipe 404, and through the cooperation of the screw rod 502, the nut 503 can be moved with high precision, so that the bellows bag 402 can be stretched or extended with high precision, and the electrolyte can be filled with high precision.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a high accuracy bellows formula metering pump, includes base (1), its characterized in that: the electrolyte quantitative filling device is characterized in that an organic case (2) is fixed on the upper surface of the base (1), a shell (3) is fixed on the left side of the case (2), a leakage-proof mechanism (4) is arranged in the shell (3) and used for guaranteeing the sealing of the electrolyte in a pump body, a driving mechanism (5) is arranged on the right side of the case (2) and used for realizing the quantitative filling of the electrolyte, and a partition plate (6) is fixed between the inner walls of the opposite sides of the case (2);

the leak protection mechanism (4) is including fixing at pump head (401) of shell (3) left side, the right side of pump head (401) is fixed with bellows bag (402), the top intercommunication of pump head (401) has outlet valve (403), the other end intercommunication of outlet valve (403) has drain pipe (404), the bottom intercommunication of pump head (401) has inlet valve (405), the other end intercommunication of inlet valve (405) has feed liquor pipe (406).

2. A high precision bellows metering pump according to claim 1, wherein: the shape of the shell (3) is a cuboid with a hollow inside and a missing left side wall, and the sum of the lengths of the shell (3) and the case (2) is matched with the length of the base (1).

3. A high precision bellows metering pump according to claim 1, wherein: the length and the width of the right side of the pump head (401) are matched with the width and the height of the shell (3), and the pump head (401) is fixedly connected with the shell (3) through bolts.

4. A high precision bellows metering pump according to claim 1, wherein: the left side of the bellows bag (402) is communicated with the pump head (401), and the right side of the bellows bag (402) is in a closed state.

5. A high precision bellows metering pump according to claim 1, wherein: the driving mechanism (5) comprises a motor (501) fixed on the right side of the chassis (2), an output shaft of the motor (501) penetrates through and extends to the inside of the chassis (2), a screw rod (502) is fixed, the other end of the screw rod (502) is rotationally connected with the right side of the partition board (6) through a bearing, a nut (503) is connected with the outer side of the screw rod (502) in a threaded mode, a connecting rod (504) is fixed on the left side of the nut (503), the other end of the connecting rod (504) penetrates through and extends to the left side of the partition board (6), a connecting block (505) is fixed, a push rod (506) is fixed on the other end of the connecting block (505), and the other end of the push rod (506) penetrates through and extends to the inside of the shell (3) and is fixedly connected with the right side of the bellows bag (402).

6. The high precision bellows metering pump of claim 5, wherein: the number of the connecting rods (504) is two, and the connecting rods are distributed symmetrically up and down by the central axis of the nut (503).

7. The high precision bellows metering pump of claim 5, wherein: the right side of the shell (3) is fixedly provided with a guide block, and the outer side of the push rod (506) is in sliding connection with the inner side of the guide block.