CN213598127U

CN213598127U - Plunger type metering pump with safety valve

Info

Publication number: CN213598127U
Application number: CN202022780494.3U
Authority: CN
Inventors: 马志国
Original assignee: Jinan Jiemingtiandi Environmental Protection Equipment Co ltd
Current assignee: Jining Derun environmental protection equipment Co.,Ltd.
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-02
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses a plunger type measuring pump from area relief valve, including casing, pump head and relief valve, there is the motor casing upper end through bolted connection, there is the pump head casing one side through bolted connection, there is the import check valve pump head bottom through bolted connection, there is the export check valve pump head upper end through bolted connection, there is the relief valve export check valve upper end through flange joint, there is the buffer relief valve upper end through the pipe connection. Has the advantages that: the utility model discloses a set up relief valve and buffer, the safety operation of plunger type measuring pump and pipe-line system's safety can be guaranteed to the relief valve, simultaneously when the maintenance, through the relief valve alright in order to close the pipeline to dismantle the maintenance to the measuring pump, need not dismantle the pipeline, convenient maintenance, the buffer can also reduce the pulse by output liquid in addition, improves the safety in utilization.

Description

Plunger type metering pump with safety valve

Technical Field

The utility model relates to a plunger type measuring pump technical field, concretely relates to plunger type measuring pump from taking relief valve.

Background

The metering pump is a machine capable of metering and conveying liquid, is also called a metering pump and a proportional pump, is commonly used for various types of pharmaceutical agent adding complete equipment, is also called a dosing pump, can meet various strict technological process requirements, can realize stepless regulation of flow within the range of 0-100%, is a metering and conveying device with corrosion resistance and precise metering, and can be divided into a plunger metering pump, an electromagnetic diaphragm metering pump, a hydraulic diaphragm metering pump and a mechanical diaphragm metering pump.

Present plunger type measuring pump is in the use, because liquid can produce great pulse when flowing from the exit, and then cause the injury to the pipeline, and when maintaining the measuring pump, need dismantle the pipeline earlier and just can maintain, complex operation, increase the clearance degree of difficulty, present plunger type measuring pump is in the use in addition, filler in the casing can produce the loss, and the staff can not in time know the inside pressure variation of casing, thereby influence the leakproofness of measuring pump, lead to the measuring pump measurement inaccurate, influence the result of use, consequently, need a plunger type measuring pump from taking the relief valve to solve current problem.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the prior art not enough, now provide a plunger type measuring pump from area relief valve, solved current plunger type measuring pump in the use, because can produce great pulse when liquid flows from the exit, and then cause the injury to the pipeline, and when maintaining the measuring pump, need dismantle the pipeline earlier and just can maintain, complex operation increases the problem of the clearance degree of difficulty.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a plunger type measuring pump from area relief valve, including casing, pump head and relief valve, there is the motor casing upper end through bolted connection, there is the pump head casing one side through bolted connection, there is the import check valve pump head bottom through bolted connection, there is the export check valve pump head upper end through bolted connection, there is the relief valve export check valve upper end through flange joint, there is the buffer relief valve upper end through the pipe connection.

Furthermore, a touch output shaft of the motor penetrates through the shell, a transmission output shaft of the motor is connected with a worm through a coupler, and one side of the worm is meshed with a worm wheel.

By adopting the technical scheme, the safety valve can ensure the safe operation of the plunger type metering pump and the safety of a pipeline system, and meanwhile, when the plunger type metering pump is maintained, the pipeline can be closed through the safety valve, so that the metering pump is disassembled and maintained, the pipeline does not need to be disassembled, the maintenance is convenient, the pulse of the output liquid can be reduced through the buffer, and the use safety is improved.

Furthermore, the middle part of the worm wheel is connected with a main shaft through a key, the main shaft is connected with the shell in a rotating mode, an eccentric wheel is arranged on one side of the worm wheel and connected with the main shaft through a key, and a connecting rod is connected to one side of the eccentric wheel through a rotating mode.

By adopting the technical scheme, the motor can drive the worm rotates and further drives the worm wheel to rotate, the speed is reduced by the worm wheel and the worm, and the eccentric wheel is driven to rotate by the transmission of the main shaft.

Furthermore, one end of the connecting rod is rotatably connected with a plunger, and a stroke regulator is connected between the connecting rod and the plunger through a clamping groove.

By adopting the technical scheme, the eccentric wheel can drive the connecting rod to move so as to drive the plunger to do reciprocating linear motion, so that the volume in the shell is continuously changed, and the processes of liquid suction and liquid discharge are realized.

Furthermore, one side of the outer shell is rotatably connected with a stroke adjusting hand wheel, one side of the stroke adjusting hand wheel is connected with a locking bolt through threads, and the locking bolt is a triangular bolt.

Through adopting above-mentioned technical scheme, can adjust the stroke of plunger formula measuring pump to satisfy different ration user demands.

Further, motor one side is provided with the manometer, the manometer bottom is pegged graft and is had measuring probe, measuring probe runs through the casing, measuring probe with the casing passes through threaded connection.

Through adopting above-mentioned technical scheme, can real-time measurement the pressure variation in the casing, and pass through the manometer shows the processing, and the staff of being convenient for in time knows the sealed situation of measuring pump, guarantees the leakproofness of measuring pump, improves the result of use.

(III) advantageous effects

Compared with the prior art, the utility model, following beneficial effect has:

1. in order to solve the problems that in the use process of the existing plunger type metering pump, because the liquid can generate larger pulse when flowing out from an outlet, the pipeline is damaged, and when the metering pump is maintained, the pipeline needs to be disassembled first, the operation is complex, and the cleaning difficulty is increased, the utility model discloses a safety valve and a buffer are arranged, the safety valve can ensure the safe operation of the plunger type metering pump and the safety of a pipeline system, and simultaneously, the pipeline can be closed through the safety valve when being maintained, so that the metering pump is disassembled and maintained, the pipeline does not need to be disassembled, the maintenance is convenient, in addition, the buffer can also reduce the pulse of the output liquid, and the use safety is improved;

2. for solving current plunger type measuring pump in the use, the packing in the casing can produce the loss, and the staff can not in time know the inside pressure variation of casing to influence the leakproofness of measuring pump, lead to the measuring pump measurement inaccurate, influence result in the problem of result of use, the utility model discloses a set up manometer and measuring probe, pressure variation in can the real-time measurement casing to through the manometer demonstration processing, the staff of being convenient for in time knows the sealed situation of measuring pump, guarantees the leakproofness of measuring pump, improves the result of use.

Drawings

Fig. 1 is a schematic structural diagram of a plunger type metering pump with a safety valve of the present invention;

fig. 2 is a sectional view of a plunger type metering pump with a safety valve according to the present invention;

fig. 3 is an enlarged view of a position a of the plunger-type metering pump with a safety valve according to the present invention.

The reference numerals are explained below:

1. a buffer; 2. a safety valve; 3. an outlet check valve; 4. a pump head; 5. an inlet check valve; 6. a pressure gauge; 7. a measuring probe; 8. a housing; 9. a motor; 10. a worm; 11. a worm gear; 12. a main shaft; 13. an eccentric wheel; 14. a connecting rod; 15. a plunger; 16. a stroke adjuster; 17. a stroke adjusting hand wheel; 18. and locking the bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the plunger type metering pump with a safety valve in the embodiment comprises a housing 8, a pump head 4 and a safety valve 2, wherein the upper end of the housing 8 is connected with a motor 9 through a bolt, one side of the housing 8 is connected with the pump head 4 through a bolt, the bottom of the pump head 4 is connected with an inlet check valve 5 through a bolt, the upper end of the pump head 4 is connected with an outlet check valve 3 through a bolt, the upper end of the outlet check valve 3 is connected with the safety valve 2 through a flange, the upper end of the safety valve 2 is connected with a buffer 1 through a pipeline, the safety valve 2 can ensure the safe operation of the plunger type 15 metering pump and the safety of a pipeline system, and meanwhile, when in maintenance, the pipeline can be closed through the safety valve 2, so that the metering pump is disassembled and maintained without disassembling the pipeline, the maintenance is convenient, the buffer 1 can reduce, the transmission output shaft of motor 9 is connected with worm 10 through the shaft coupling, worm 10 one side meshing has worm wheel 11, worm wheel 11 middle part has main shaft 12 through the key-type connection, main shaft 12 rotates with casing 8 and is connected, worm wheel 11 one side is provided with eccentric wheel 13, eccentric wheel 13 is connected with main shaft 12 key-type connection, eccentric wheel 13 one side is connected with connecting rod 14 through rotating, motor 9 can drive worm 10 and rotate, and then drive worm wheel 11 and rotate, reduce speed through worm wheel 11 worm 10, transmit through main shaft 12, it rotates to drive eccentric wheel 13, connecting rod 14 one end is rotated and is connected with plunger 15, be connected with stroke regulator 16 through the draw-in groove between connecting rod 14 and the plunger 15, can make eccentric wheel 13 drive connecting rod 14 move, and then drive plunger 15 and do reciprocal linear motion, thereby constantly change the volume size in the.

As shown in fig. 1 to 3, in this embodiment, a stroke adjusting handwheel 17 is rotatably connected to one side of the outer side of the housing 8, and can drive the stroke adjuster 16 to operate to adjust the stroke of the plunger 15 type metering pump, so as to meet different quantitative use requirements, a locking bolt 18 is connected to one side of the stroke adjusting handwheel 17 through a thread, and the locking bolt 18 is a triangular bolt, so that the stroke adjusting handwheel 17 can be locked and fixed.

As shown in fig. 1-3, in this embodiment, a pressure gauge 6 is disposed on one side of the motor 9, a measuring probe 7 is inserted into the bottom end of the pressure gauge 6, the measuring probe 7 penetrates through the casing 8, the measuring probe 7 is connected with the casing 8 through a thread, pressure change in the casing 8 can be measured in real time, and the pressure gauge 6 displays and processes the pressure change, so that a worker can know the sealing condition of the metering pump in time, the sealing performance of the metering pump is guaranteed, and the using effect is improved.

The specific implementation process of this embodiment is as follows: when in use, firstly, the buffer 1 and the inlet one-way valve 5 of the metering pump are connected with an external pipeline, then the locking bolt 18 is loosened, the stroke adjusting hand wheel 17 is rotated, the stroke adjuster 16 in the metering pump is driven to adjust the stroke of the metering pump, then the locking bolt 18 is locked to limit and fix the stroke adjusting hand wheel 17, then the motor 9 drives the worm 10 to rotate, further drives the worm wheel 11 to rotate, the worm 10 decelerates through the worm wheel 11, the main shaft 12 is driven to rotate, the main shaft 12 transmits and drives the eccentric wheel 13 to rotate, further the connecting rod 14 drives the plunger 15 to do reciprocating linear motion, thereby constantly changing the volume in the shell 8, enabling liquid to be sucked into the shell 8 through the inlet one-way valve 5 and then discharged through the outlet one-way valve 3, and the safety valve 2 can ensure the safe operation of the plunger 15 type metering pump and the safety of a pipeline, simultaneously when the maintenance, through relief valve 2 alright in order closing the pipeline, thereby dismantle the maintenance to the measuring pump, need not dismantle the pipeline, convenient maintenance, buffer 1 can reduce by the pulse of output liquid, improve the safety in utilization, in addition at the measuring pump working process, measuring probe 7 can the pressure variation in the real-time measurement casing 8, and show through manometer 6 and handle, the staff of being convenient for in time knows the sealed situation of measuring pump, guarantee the leakproofness of measuring pump, improve the result of use.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the spirit and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by the technical solution of the present invention by those skilled in the art should fall into the protection scope of the present invention, and the technical contents claimed by the present invention have been fully recorded in the claims.

Claims

1. The utility model provides a plunger type measuring pump from taking relief valve which characterized in that: including casing (8), pump head (4) and relief valve (2), there is motor (9) casing (8) upper end through bolted connection, there is pump head (4) casing (8) one side through bolted connection, there is import check valve (5) pump head (4) bottom through bolted connection, there is export check valve (3) pump head (4) upper end through bolted connection, there is relief valve (2) export check valve (3) upper end through flange joint, there is buffer (1) relief valve (2) upper end through pipe connection.

2. The plunger-type metering pump with safety valve of claim 1, wherein: the touch output shaft of the motor (9) penetrates through the shell (8), the transmission output shaft of the motor (9) is connected with a worm (10) through a coupler, and a worm wheel (11) is meshed on one side of the worm (10).

3. The plunger-type metering pump with safety valve of claim 2, wherein: worm wheel (11) middle part has main shaft (12) through the key connection, main shaft (12) with casing (8) rotate to be connected, worm wheel (11) one side is provided with eccentric wheel (13), eccentric wheel (13) with main shaft (12) key-type connection, eccentric wheel (13) one side is connected with connecting rod (14) through rotating.

4. The plunger-type metering pump with safety valve of claim 3, wherein: one end of the connecting rod (14) is rotatably connected with a plunger (15), and a stroke regulator (16) is connected between the connecting rod (14) and the plunger (15) through a clamping groove.

5. The plunger-type metering pump with safety valve of claim 4, wherein: the stroke adjusting mechanism is characterized in that a stroke adjusting hand wheel (17) is rotatably connected to one side outside the shell (8), a locking bolt (18) is connected to one side of the stroke adjusting hand wheel (17) through threads, and a triangular bolt is adopted by the locking bolt (18).

6. The plunger-type metering pump with safety valve of claim 1, wherein: the measuring device is characterized in that a pressure gauge (6) is arranged on one side of the motor (9), a measuring probe (7) is inserted into the bottom end of the pressure gauge (6), the measuring probe (7) penetrates through the shell (8), and the measuring probe (7) is connected with the shell (8) through threads.