CN221074572U - Double-pump-head type diaphragm pump with small pulsation - Google Patents
Double-pump-head type diaphragm pump with small pulsation Download PDFInfo
- Publication number
- CN221074572U CN221074572U CN202323253170.4U CN202323253170U CN221074572U CN 221074572 U CN221074572 U CN 221074572U CN 202323253170 U CN202323253170 U CN 202323253170U CN 221074572 U CN221074572 U CN 221074572U
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- valve
- diaphragm
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- 230000010349 pulsation Effects 0.000 title claims abstract description 26
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000009977 dual effect Effects 0.000 claims description 17
- 239000012528 membrane Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003073 embolic effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 235000015094 jam Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 235000021400 peanut butter Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model provides a double-pump head type diaphragm pump with small pulsation, which is characterized in that: the pump body cover is arranged on the front side surface of the pump body shell; the motor is arranged on the rear side surface of the pump body shell, and a motor shaft of the motor extends into the pump body shell; the first pump head and the second pump head are respectively arranged on the left side and the right side of the pump body shell; the first pump head comprises a first internal mechanism arranged in the pump body shell and a first external mechanism arranged in the pump body shell; the first internal mechanism comprises an eccentric wheel, a connecting rod and a diaphragm which are sequentially arranged from the middle part of the pump body shell to the left side surface of the pump body shell along the horizontal straight line direction; the first external mechanism comprises a valve lower plate, a valve upper plate and an end cover which are sequentially arranged from the left side surface to the outer side of the pump body shell along the horizontal linear direction; a sealing diaphragm is arranged between the end cover and the valve upper plate, and a sealing ring and a valve plate are arranged between the valve upper plate and the valve lower plate; the second pump head includes a second internal mechanism disposed within the pump body housing and a second external mechanism disposed within the pump body housing.
Description
Technical Field
The utility model relates to the technical field of diaphragm pumps, in particular to a double-pump-head diaphragm pump with small pulsation.
Background
The diaphragm pump, i.e. the embolic pump, separates the body to be infused from the plunger and the pump cylinder by means of a membrane, thereby protecting the plunger and the pump cylinder. Diaphragm pumps rely on the back and forth actuation of a diaphragm to change the working chamber volume to draw in and expel fluid. Diaphragm pumps are widely used in various fields, such as pumping peanut butter, jam, beer, syrup, etc. in the food field; the pump is applied to pumping various flammable, volatile, strong acid, strong alkali, strong corrosion liquid and the like in the chemical industry field; pumping cement grouting and mortar in the building field; the method is applied to ponding and the like in pumping mines, tunnels, slag and the like in the mining field; pumping sediment, grouting and the like after an oil well is drilled in the petroleum field; the pump is applied to pumping various sewage, wastewater and the like in the field of environmental protection.
The existing diaphragm pump is usually provided with a pump body, the negative pressure is low, the vibration amplitude is large during operation, the balance effect is not good enough, and when the diaphragm pump conveys liquid, the pulsation of the liquid is large, so that large energy consumption is easy to generate, and the production efficiency of diaphragm pump equipment is reduced.
Disclosure of utility model
The present utility model has been made to solve the above problems, and an object of the present utility model is to provide a double-pump-head type diaphragm pump with small pulsation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The utility model provides a double-pump-head diaphragm pump with small pulsation, which is characterized by comprising the following components: the pump comprises a motor, a pump body shell, a first pump head, a second pump head and a pump body cover; the pump body cover is arranged on the front side surface of the pump body shell; the motor is arranged on the rear side surface of the pump body shell, and a motor shaft of the motor extends into the pump body shell; the first pump head and the second pump head are respectively arranged on the left side and the right side of the pump body shell, and the geometric center line of the first pump head is parallel to the geometric center line of the second pump head; the first pump head comprises a first internal mechanism arranged in the pump body shell and a first external mechanism arranged in the pump body shell; the first internal mechanism comprises an eccentric wheel, a connecting rod and a diaphragm which are sequentially arranged from the middle part of the pump body shell to the left side surface of the pump body shell along the horizontal straight line direction; the eccentric wheel is arranged and fixed on a motor shaft of the motor, the eccentric wheel is connected with one end of the connecting rod, the other end of the connecting rod is connected with the diaphragm, and the diaphragm plane of the diaphragm faces the left side surface of the pump body shell; the first external mechanism comprises a valve lower plate, a valve upper plate and an end cover which are sequentially arranged from the left side surface to the outer side of the pump body shell along the horizontal linear direction; the end cover, the valve upper plate and the valve lower plate are fixedly connected to the left side surface of the pump body shell through bolts, a sealing diaphragm is arranged between the end cover and the valve upper plate, and a sealing ring and a valve plate are arranged between the valve upper plate and the valve lower plate; the second pump head comprises a second internal mechanism arranged in the pump body shell and a second external mechanism arranged in the pump body shell; the second internal mechanism has the same structure as the first internal mechanism, and the second external mechanism has the same structure as the second external mechanism.
Further, in the dual pump head type diaphragm pump with small pulsation provided by the utility model, the characteristics can be as follows: the pump body cover is provided with a bearing hole, a bearing is arranged in the bearing hole, and the tail end of a motor shaft of the motor is inserted into the bearing.
Further, in the dual pump head type diaphragm pump with small pulsation provided by the utility model, the characteristics can be as follows: wherein, the front side surface of the valve upper plate is provided with a suction inlet and a discharge outlet at the same time; the first end face of the valve upper plate is provided with a funnel groove, the side face of the funnel groove is communicated with the suction inlet, the sealing diaphragm is arranged at the large-caliber opening of the funnel groove, and the small-caliber opening of the funnel groove is communicated with the second end face of the valve upper plate; the discharge port communicates with the second end face of the valve upper plate.
Further, in the dual pump head type diaphragm pump with small pulsation provided by the utility model, the characteristics can be as follows: wherein, the first end surface of the valve lower plate is provided with a first mounting groove of the valve lower plate and a second mounting groove of the valve lower plate; the second end face of the valve upper plate is provided with a first valve upper plate mounting groove and a second valve upper plate mounting groove; the valve lower plate first mounting groove is matched with the valve upper plate first mounting groove to form a first mounting cavity, and a valve plate and a first sealing ring are arranged in the first mounting cavity; the valve lower plate second mounting groove is matched with the valve upper plate second mounting groove to form a second mounting cavity, and the valve plate and the second sealing ring are mounted in the second mounting cavity.
Further, in the dual pump head type diaphragm pump with small pulsation provided by the utility model, the characteristics can be as follows: wherein the first sealing ring is in a rounded trapezoid annular structure; the second sealing ring is in a round-corner rectangular annular structure.
Further, in the dual pump head type diaphragm pump with small pulsation provided by the utility model, the characteristics can be as follows: the eccentric wheel is axially divided into a first diameter part and a second diameter part, and the diameter of the first diameter part is smaller than that of the second diameter part; one end of the connecting rod is provided with a round hole, and the second diameter part of the eccentric wheel is arranged in the round hole; the other end of the connecting rod is provided with a threaded inner hole, and the connecting rod is in threaded connection with one end of the external threaded connecting piece; the end of the diaphragm is provided with a threaded inner hole, and the diaphragm is in threaded connection with the other end of the external threaded connecting piece.
The utility model has the following functions and effects:
The double-pump-head type diaphragm pump with small pulsation is provided with the double pump heads, the first pump head and the second pump head are respectively arranged on the left side and the right side of the pump body shell, and after the motor is started, the first pump head and the second pump head work simultaneously.
Drawings
FIG. 1 is a schematic diagram of a dual pump head diaphragm pump with reduced pulsations (left side oblique view) in an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a dual pump head diaphragm pump with reduced pulsation (right side oblique view) in an embodiment of the present utility model;
FIG. 3 is a schematic diagram of a dual pump head diaphragm pump with reduced pulsation (bottom view) in an embodiment of the present utility model;
FIG. 4 is a schematic diagram of the motor and other parts of a dual pump head diaphragm pump with small pulsations according to an embodiment of the present utility model;
FIG. 5 is a structural diagram of a pump housing according to an embodiment of the present utility model, (a) is a schematic view of a right oblique viewing angle, and (b) is a schematic view of a left oblique viewing angle;
FIG. 6 is a schematic diagram of the pump body cover, bearings, pump body housing, motor in an embodiment of the utility model;
FIG. 7 is a schematic diagram of an exploded construction of a first pump head and a second pump head in an embodiment of the utility model;
Fig. 8 is a schematic exploded view of part of the components in the first pump head and the second pump head in an embodiment of the utility model.
Reference numerals: 1-a pump body shell; 1 a-mounting holes; 1 b-mounting holes; 1 c-mounting holes; 1 d-stud structure; 1 e-mounting holes; 2-an electric motor; 2 a-a support for the motor; 2 b-motor terminals; 3-a first pump head; 4-a second pump head; 5-pump body cover; 7-a bearing; 8-a bolt; 9-a bolt; 11-eccentric wheel; 11 a-a first diameter portion; 11 b-a second diameter portion; 12-connecting rod; 13-an externally threaded connection; 14-a separator; 15-a valve lower plate; 15 a-a first mounting groove; 15 b-a valve lower plate second mounting groove; 15 c-mounting slots; 16-a first sealing ring; 17-a second sealing ring; 18-valve plates; 19-valve upper plate; 19 a-a funnel; 19 b-suction port; 19 c-an outlet; 19 d-a valve upper plate first mounting groove; 19 e-a valve upper plate second mounting groove; 20-sealing the membrane; 21-end cap.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purposes and the effects of the present utility model easy to understand, the following embodiments specifically describe the technical scheme of the present utility model with reference to the accompanying drawings.
Referring to fig. 1 to 4, an embodiment of the present utility model provides a dual pump head type diaphragm pump with small pulsation, comprising: pump body casing 1, motor 2, first pump head 3, second pump head 4, pump body lid 5.
Referring to fig. 5 (b), a mounting hole 1e is formed in the front side of the pump body casing 1, the mounting hole 1e is a circular hole, and bolt holes are formed in two vertex angle positions of the diagonal line of the front side. Referring to fig. 6, the back surface of the pump body cover 5 is provided with a circular protrusion matched with the mounting hole 1e, the circular protrusion of the pump body cover 5 is inserted into the circular hole, and the pump body cover 5 is fixed on the front side surface of the pump body casing 1 through two bolts 9. The pump body cover 5 is provided with a bearing hole, and a bearing 7 is arranged in the bearing hole.
Referring to fig. 5 (a), a mounting hole 1c is formed in a rear side surface of the pump body casing 1, the mounting hole 1c is a circular hole, and bolt holes are formed in both sides of the mounting hole 1c on the rear side surface. Referring to fig. 6, two bolts 8 are inserted into bolt holes of the rear side face from the inside of the pump body casing 1, and the motor 2 is connected with the two bolts 8, so that the motor 2 is mounted on the rear side face of the pump body casing 1. After the motor is installed, a motor shaft of the motor 2 extends into the pump body casing 1, and the tail end of the motor shaft of the motor 2 is inserted into a bearing 7 installed on the pump body cover 5.
Referring to fig. 1 and 2, in the present embodiment, the motor 2 is a motor with a support 2a, and the support 2a of the motor also serves as a support seat for the whole diaphragm pump. The motor terminal 2b is provided at one side of the motor.
Referring to fig. 5, a mounting hole 1b is formed in the left side surface of the pump body casing 1, a mounting hole 1a is formed in the right side surface, and the mounting hole 1b and the mounting hole 1a are used for mounting the matching diaphragm 14. Four internally threaded stud structures 1d are provided on both the left and right sides, the stud structures 1d being used for the mounting of bolts 22.
As shown in fig. 1 to 4, the first pump head 3 and the second pump head 4 are mounted on the left and right sides of the pump body housing 1, respectively, and the geometric center line of the first pump head 3 (see the broken line b in fig. 7) and the geometric center line of the second pump head 4 (see the broken line b in fig. 7) are parallel to each other.
The first pump head 3 includes a first internal mechanism provided in the pump body housing 1 and a first external mechanism provided in the pump body housing 1. The second pump head 4 includes a second internal mechanism provided in the pump body housing 1 and a second external mechanism provided in the pump body housing 1.
Referring to fig. 7 and 8, the first internal mechanism includes an eccentric 11, a connecting rod 12, and a diaphragm 14 which are sequentially disposed in a horizontal straight line direction from the middle of the pump body casing 1 to the left side surface of the pump body casing 1.
The eccentric wheel 11 is fixed on the motor shaft of the motor 2. The eccentric 11 is of a steel structure, and the eccentric 11 is axially divided into a first diameter portion 11a and a second diameter portion 11b, the diameter of the first diameter portion 11a being smaller than the diameter of the second diameter portion 11 b. One end of the connecting rod 12 is provided with a circular hole in which the second diameter portion 11b of the eccentric 11 is fitted. The other end of the connecting rod 12 is provided with a threaded inner hole, and the connecting rod 12 is in threaded connection with one end of an external threaded connecting piece 13. The end of the diaphragm 14 is provided with a threaded inner hole, and the diaphragm 14 is in threaded connection with the other end of the external threaded connector 13. The upper end portion of the diaphragm 14 is correspondingly mounted at the mounting groove 15c of the valve lower plate 15.
Referring to fig. 7 and 8, the first external mechanism includes a valve lower plate 15, a valve upper plate 19, and an end cap 21, which are disposed in this order in a horizontal straight line direction from the left side surface to the outside of the pump body housing 1.
The end cover 21, the valve upper plate 19 and the valve lower plate 15 are fixedly connected to the stud structure 1d of the pump body casing 1 through bolts 21.
Referring to fig. 7, the valve upper plate 19 is provided with both a suction port 19b and a discharge port 19c at the front side. The first end surface of the valve upper plate 19 is provided with a funnel groove 19a, the side surface of the funnel groove 19a is communicated with the suction inlet 19b, the sealing diaphragm 20 is arranged at the large-caliber opening of the funnel groove 19a, and the small-caliber opening of the funnel groove 19a is communicated with the second end surface of the valve upper plate 19. The discharge port 19c communicates with the second end surface of the valve upper plate 19.
A sealing ring and a valve plate 18 are arranged between the valve upper plate 19 and the valve lower plate 15, and the specific conditions are as follows: referring to fig. 8, a first end surface of the valve lower plate 15 is provided with a valve lower plate first mounting groove 15a and a valve lower plate second mounting groove 15b. Referring to fig. 7, the second end surface of the valve upper plate 19 is provided with a valve upper plate first mounting groove 19d and a valve upper plate second mounting groove 19e. The valve lower plate first mounting groove 15a and the valve upper plate first mounting groove 19d cooperate to form a first mounting cavity, and the valve plate 18 and the first sealing ring 16 are mounted in the first mounting cavity. The first seal ring 16 has a rounded trapezoid annular structure. The valve lower plate second mounting groove 15b and the valve upper plate second mounting groove 19e cooperate to form a second mounting cavity, and a valve plate 18 and a second sealing ring 17 are arranged in the second mounting cavity. The second sealing ring 17 is in a rounded rectangular annular structure.
In the second pump head 4, the second internal mechanism has the same structure as the first internal mechanism of the first pump head 3, and the second external mechanism has the same structure as the second external mechanism of the first pump head 3, and the specific structure can be referred to fig. 7 and 8, and details thereof are not repeated here.
The operation of the dual pump head type diaphragm pump with small pulsation of this embodiment is as follows: the motor 2 drives the two eccentric wheels 11 to rotate after working, thereby driving the two connecting rods 12 to lift, and driving the two diaphragms 13 to move back and forth, so that negative pressure is formed inside the valve lower plate 14 and the pump body shell 1, and pumping operation can be realized. In this embodiment, after the motor 2 works, the first pump head and the second pump head work simultaneously, and because the structures of the first pump head and the second pump head are the same, the pumping frequency and the pumping amplitude of the diaphragm are the same, and the first pump head and the second pump head are respectively positioned at the left side and the right side, so that the dynamic balance of the whole diaphragm pump is good, the vibration is small, the liquid pulsation is small, and the energy consumption loss of the diaphragm pump equipment is reduced.
The above-described embodiments are only preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, but various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model are included in the protection scope of the present utility model.
Claims (6)
1. A dual pump head type diaphragm pump with small pulsation, comprising: the pump comprises a motor, a pump body shell, a first pump head, a second pump head and a pump body cover;
The pump body cover is arranged on the front side surface of the pump body shell;
The motor is arranged on the rear side surface of the pump body shell, and a motor shaft of the motor extends into the pump body shell;
The first pump head and the second pump head are respectively arranged on the left side and the right side of the pump body shell, and the geometric center line of the first pump head and the geometric center line of the second pump head are parallel to each other;
The first pump head comprises a first internal mechanism arranged in the pump body shell and a first external mechanism arranged in the pump body shell;
The first internal mechanism comprises an eccentric wheel, a connecting rod and a diaphragm which are sequentially arranged from the middle part of the pump body shell to the left side surface of the pump body shell along the horizontal straight line direction;
The eccentric wheel is arranged and fixed on a motor shaft of the motor, the eccentric wheel is connected with one end of the connecting rod, the other end of the connecting rod is connected with the diaphragm, and the diaphragm plane of the diaphragm faces to the left side surface of the pump body shell;
The first external mechanism comprises a valve lower plate, a valve upper plate and an end cover which are sequentially arranged from the left side surface to the outer side of the pump body shell along the horizontal linear direction;
The end cover, the valve upper plate and the valve lower plate are fixedly connected to the left side surface of the pump body shell through bolts, a sealing membrane is arranged between the end cover and the valve upper plate, and a sealing ring and a valve plate are arranged between the valve upper plate and the valve lower plate;
the second pump head comprises a second internal mechanism arranged in the pump body shell and a second external mechanism arranged in the pump body shell;
the second internal mechanism is identical in structure to the first internal mechanism, and the second external mechanism is identical in structure to the second external mechanism.
2. A dual pump head diaphragm pump with small pulsations as claimed in claim 1 and characterized by:
The pump body cover is provided with a bearing hole, a bearing is arranged in the bearing hole, and the tail end of a motor shaft of the motor is inserted into the bearing.
3. A dual pump head diaphragm pump with small pulsations as claimed in claim 1 and characterized by:
Wherein, the front side surface of the valve upper plate is provided with a suction inlet and a discharge outlet at the same time;
The first end face of the valve upper plate is provided with a funnel groove, the side face of the funnel groove is communicated with the suction inlet, the sealing diaphragm is arranged at the large-caliber opening of the funnel groove, and the small-caliber opening of the funnel groove is communicated with the second end face of the valve upper plate;
the exhaust port communicates with the second end face of the valve upper plate.
4. A dual pump head diaphragm pump with small pulsation as claimed in claim 3, wherein:
Wherein, the first end surface of the valve lower plate is provided with a first mounting groove of the valve lower plate and a second mounting groove of the valve lower plate;
The second end face of the valve upper plate is provided with a first valve upper plate mounting groove and a second valve upper plate mounting groove;
The valve lower plate first mounting groove is matched with the valve upper plate first mounting groove to form a first mounting cavity, and a valve plate and a first sealing ring are arranged in the first mounting cavity;
The valve lower plate second mounting groove is matched with the valve upper plate second mounting groove to form a second mounting cavity, and the valve plate and the second sealing ring are arranged in the second mounting cavity.
5. A dual pump head diaphragm pump with small pulsation as claimed in claim 4, wherein:
Wherein the first sealing ring is in a rounded trapezoid annular structure;
the second sealing ring is in a round-corner rectangular annular structure.
6. A dual pump head diaphragm pump with small pulsations as claimed in claim 1 and characterized by:
The eccentric wheel is axially divided into a first diameter part and a second diameter part, and the diameter of the first diameter part is smaller than that of the second diameter part;
A round hole is formed in one end of the connecting rod, and the second diameter part of the eccentric wheel is arranged in the round hole;
The other end of the connecting rod is provided with a threaded inner hole, and the connecting rod is in threaded connection with one end of the external threaded connecting piece;
The end of the diaphragm is provided with a threaded inner hole, and the diaphragm is in threaded connection with the other end of the external threaded connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323253170.4U CN221074572U (en) | 2023-11-30 | 2023-11-30 | Double-pump-head type diaphragm pump with small pulsation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323253170.4U CN221074572U (en) | 2023-11-30 | 2023-11-30 | Double-pump-head type diaphragm pump with small pulsation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221074572U true CN221074572U (en) | 2024-06-04 |
Family
ID=91272548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323253170.4U Active CN221074572U (en) | 2023-11-30 | 2023-11-30 | Double-pump-head type diaphragm pump with small pulsation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221074572U (en) |
-
2023
- 2023-11-30 CN CN202323253170.4U patent/CN221074572U/en active Active
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