CN220059868U - Hydraulic diaphragm metering pump - Google Patents
Hydraulic diaphragm metering pump Download PDFInfo
- Publication number
- CN220059868U CN220059868U CN202321556903.9U CN202321556903U CN220059868U CN 220059868 U CN220059868 U CN 220059868U CN 202321556903 U CN202321556903 U CN 202321556903U CN 220059868 U CN220059868 U CN 220059868U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- steel sheet
- diaphragm
- cavity
- elastic steel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 230000009471 action Effects 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000010720 hydraulic oil Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Abstract
The utility model discloses a hydraulic diaphragm metering pump, and relates to the technical field of metering pumps; the utility model comprises a pump body, wherein a hydraulic cavity and a medium cavity are formed in the pump body, a flow channel is communicated between the hydraulic cavity and the medium cavity, two opposite sides of the pump body are respectively communicated with the medium cavity, a suction valve and a discharge valve are respectively communicated with the medium cavity, and a hydraulic pipe communicated with the hydraulic cavity is arranged at one side of the pump body; a diaphragm disposed within the hydraulic chamber; an elastic steel sheet in an arc-shaped structure; according to the utility model, the elastic steel sheet arranged in the hydraulic cavity is of an arc-shaped structure, the arc-shaped end of the elastic steel sheet is overlapped with the diaphragm, the two ends of the elastic steel sheet are slidably arranged on the inner wall of the hydraulic cavity, when the diaphragm deforms under the action of hydraulic pressure, the elastic steel sheet deforms along with the diaphragm and always supports the diaphragm, so that the diaphragm is effectively prevented from being damaged under a high-pressure environment, and meanwhile, the elastic reset of the elastic steel sheet is also beneficial to the deformation reset of the diaphragm, so that the service life of the diaphragm is prolonged.
Description
Technical Field
The utility model relates to the technical field of metering pumps, in particular to a hydraulic diaphragm 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, is a special volumetric pump for conveying liquid (particularly corrosive liquid), and can be divided into a plunger and a piston according to different overflow parts; mechanical diaphragm type; hydraulic diaphragm type.
At present, a diaphragm metering pump gradually replaces a plunger metering pump to become a development trend, the diaphragm metering pump pushes hydraulic oil by the reciprocating motion of a plunger, the hydraulic oil pushes a diaphragm to make reciprocating motion to realize the suction and discharge of media, and when the diaphragm metering pump is continuously used, the pressure resistance of the diaphragm is reduced due to more times of deformation of the diaphragm, so that the service life of the diaphragm is influenced, therefore, the utility model provides the hydraulic diaphragm metering pump.
Disclosure of Invention
The utility model aims at: to solve the above-described problems in the background, the present utility model provides a hydraulic diaphragm metering pump.
The utility model adopts the following technical scheme for realizing the purposes:
a hydraulic diaphragm metering pump comprising:
the hydraulic pump comprises a pump body, wherein a hydraulic cavity and a medium cavity are formed in the pump body, a flow channel is communicated between the hydraulic cavity and the medium cavity, two opposite sides of the pump body are respectively communicated with the medium cavity, a suction valve and a discharge valve are respectively communicated with the medium cavity, and a hydraulic pipe communicated with the hydraulic cavity is arranged on one side of the pump body;
a diaphragm disposed within the hydraulic chamber;
the two ends of the elastic steel sheet are slidably arranged on the inner wall of the hydraulic cavity and are respectively positioned on two sides of the flow channel;
and the guide piece is arranged in the flow channel and is used for guiding the deformation of the elastic steel sheet.
Further, two sliding rods are connected to opposite sides of the inner wall of the hydraulic cavity, two movable plates are sleeved on the two sliding rods in a sliding mode, and two ends of the elastic steel sheet are hinged to the two movable plates respectively.
Further, a first spring sleeved on the sliding rod is arranged between the opposite sides of the two movable plates and the opposite sides of the inner wall of the hydraulic cavity respectively.
Further, the guide includes:
a collar disposed within the flow channel by struts;
one end of the guide rod is connected with the elastic steel sheet, and the other end of the guide rod penetrates through the lantern ring in a sliding manner and is provided with a limiting block.
Further, a second spring sleeved on the guide rod is arranged between the lantern ring and the elastic steel sheet.
Further, the inner wall of the hydraulic pipe is connected with an elastic bag body.
Further, the inner wall of the hydraulic pipe is provided with a positioning pipe, an annular cavity is formed between the positioning pipe and the hydraulic pipe, and the elastic bag body is positioned in the annular cavity.
Further, one ends of the hydraulic tube and the positioning tube located in the hydraulic chamber are configured to be horn-shaped.
The beneficial effects of the utility model are as follows: according to the utility model, the elastic steel sheet arranged in the hydraulic cavity is of an arc-shaped structure, the arc-shaped end of the elastic steel sheet is overlapped with the diaphragm, the two ends of the elastic steel sheet are slidably arranged on the inner wall of the hydraulic cavity, when the diaphragm deforms under the action of hydraulic pressure, the elastic steel sheet deforms along with the diaphragm and always supports the diaphragm, so that the diaphragm is not damaged under a high-pressure environment, and meanwhile, the elastic reset of the elastic steel sheet is also beneficial to the deformation reset of the diaphragm, so that the service life of the diaphragm is prolonged.
Drawings
FIG. 1 is a perspective view of the structure of the present utility model;
FIG. 2 is a perspective cross-sectional view of the present utility model;
FIG. 3 is an enlarged view of the utility model at A in FIG. 2;
FIG. 4 is an enlarged view of the utility model at B in FIG. 2;
reference numerals: 1. a pump body; 2. a hydraulic chamber; 3. a medium chamber; 4. a flow channel; 5. a suction valve; 6. a discharge valve; 7. a hydraulic pipe; 8. a diaphragm; 9. an elastic steel sheet; 10. a guide member; 11. a slide bar; 12. a movable plate; 13. a first spring; 14. a second spring; 15. an elastic bladder; 16. a positioning tube; 1001. a collar; 1002. a guide rod.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 to 4, a hydraulic diaphragm metering pump according to an embodiment of the present utility model includes: the pump body 1, offer the hydraulic pressure cavity 2 and medium cavity 3 in the pump body 1, there are flow channels 4 between medium cavity 3 and the hydraulic pressure cavity 2, wherein two opposite sides of the pump body 1 communicate with medium cavity 3 and suck the valve 5 and discharge the valve 6 separately, one side of the pump body 1 has hydraulic pressure pipe 7 communicated with hydraulic pressure cavity 2; the diaphragm 8 is arranged in the hydraulic cavity 2, the diaphragm 8 is used for dividing the hydraulic cavity 2 into an upper cavity and a lower cavity which are not communicated with each other, and the lower cavity is communicated with the flow channel 4; the elastic steel sheet 9 is in an arc-shaped structure, two ends of the elastic steel sheet 9 are arranged on the inner wall of the hydraulic cavity 2 in a sliding manner and are respectively positioned on two sides of the flow channel 4, and two opposite sides of the elastic steel sheet 9 are not in contact with the inner wall of the hydraulic cavity 2; the guide piece 10 is arranged in the flow channel 4 and is used for guiding deformation of the elastic steel sheet 9, hydraulic oil is injected into the hydraulic cavity 2 through the hydraulic pipe 7 when the pump body 1 is in use, the diaphragm 8 is deformed downwards under the hydraulic pressure of the hydraulic oil, the diaphragm 8 is abutted against the arched end of the elastic steel sheet 9 when being deformed downwards, the elastic steel sheet 9 is of an arc-shaped structure, and the two ends are in sliding connection with the inner wall of the hydraulic cavity 2, so that the elastic steel sheet 9 is elastically deformed under the action of the deformation of the diaphragm 8, the two ends are respectively and slidably far away, after the hydraulic oil in the hydraulic pipe 7 is removed, the diaphragm 8 is driven to be deformed and reset under the elastic reset of the elastic steel sheet 9, so that the diaphragm 8 is deformed and reset, when the diaphragm 8 is deformed and reset, the pressure of the lower cavity is changed, the pressure is conducted to the medium cavity 3, the suction valve 5 and the discharge valve 6 are matched to suck one row of liquid to be pumped and conveyed, and the whole device is used for supporting the diaphragm 8 under the change of the pressure, the diaphragm 8 is always supported under the action of elasticity, the diaphragm 8 is effectively prevented from being damaged under the action of high-efficiency, and the service life of the diaphragm 8 is prolonged.
As shown in fig. 2 and fig. 4, in some embodiments, two sliding rods 11 are connected to opposite sides of an inner wall of the hydraulic chamber 2, two movable plates 12 are slidably sleeved on the two sliding rods 11, two ends of the elastic steel sheet 9 are hinged to the two movable plates 12 respectively, through the arranged sliding rods 11, the two movable plates 12 arranged on the sliding rods 11, and two ends of the elastic steel sheet 9 are hinged to the two movable plates 12 respectively, so that the two ends of the elastic steel sheet 9 can be ensured to slide respectively under the action of pressure, deformation of the elastic steel sheet 9 is met, meanwhile, the two ends of the elastic steel sheet 9 slide more smoothly, and the sliding of the two ends of the elastic steel sheet cannot be interfered by deformation force, so that the practicability is improved.
As shown in fig. 2, in some embodiments, a first spring 13 sleeved on the slide rod 11 is installed between opposite sides of the two movable plates 12 and opposite sides of an inner wall of the hydraulic cavity 2, and through the first spring 13, when the elastic steel sheet 9 is deformed, two ends of the elastic steel sheet 9 drive the two movable plates 12 to respectively squeeze the first springs 13 on two sides, and when the elastic steel sheet 9 is deformed and reset, the first springs 13 on two sides are used for assisting the elastic steel sheet 9 to reset under the interference of elasticity, so that the reset stability of the elastic steel sheet 9 is ensured.
As shown in fig. 4, in some embodiments, the guide 10 includes: a collar 1001 provided in the flow channel 4 by a strut; and one end of the guide rod 1002 is connected with the elastic steel sheet 9, the other end of the guide rod 1002 penetrates through the lantern ring 1001 in a sliding manner and is provided with a limiting block, preferably, the guide rod 1002 is connected to the central bottom end of the elastic steel sheet 9, and when the elastic steel sheet 9 is elastically deformed, the guide rod 1002 vertically slides in the lantern ring 1001, so that the deformation direction of the elastic steel sheet 9 is limited, the two ends of the guide rod can synchronously slide for the same distance, and the resetting stability of the guide rod is ensured.
As shown in fig. 4, in some embodiments, a second spring 14 sleeved on the guide rod 1002 is installed between the collar 1001 and the elastic steel sheet 9, through the second spring 14, the elastic steel sheet 9 can squeeze the second spring 14 when elastically deformed, and when the elastic steel sheet 9 is elastically deformed and restored, the elastic force of the second spring 14 is utilized to support the deformation and restoration of the elastic steel sheet 9, so that the restoration stability of the elastic steel sheet 9 is further improved.
As shown in fig. 2 and 3, in some embodiments, an elastic bag body 15 is connected to the inner wall of the hydraulic pipe 7, preferably, an opening of the elastic bag body 15 is communicated with the hydraulic pipe 7, through the arranged elastic bag body 15, when hydraulic oil is injected, the hydraulic oil can be injected into the elastic bag body 15, as the hydraulic oil is continuously injected, the elastic bag body 15 deforms under the action of the pressure, so that the end part of the elastic bag body 15 is abutted against the diaphragm 8, the hydraulic oil is limited and guided by the elastic bag body 15, the abutting point of the diaphragm 8 corresponds to the arched end of the elastic steel sheet 9, the pressure of the diaphragm 8 is diffused from the central point, and the abutting bearing of the elastic steel sheet 9 is matched, so that the pressure-resistant effect on the diaphragm 8 is further played.
As shown in fig. 3, in some embodiments, a positioning tube 16 is disposed on an inner wall of the hydraulic tube 7, an annular cavity is formed between the positioning tube 16 and the hydraulic tube 7, the elastic bag body 15 is located in the annular cavity, and the elastic bag body 15 is used for guiding deformation of the elastic bag body 15 by the arrangement of the positioning tube 16, so as to limit the expansion and contraction direction of the elastic bag body 15, so that the elastic bag body 15 can be deformed or reset better, and the practicability is improved.
As shown in fig. 2, in some embodiments, one end of the hydraulic tube 7 and the positioning tube 16 located in the hydraulic cavity 2 is configured to be horn-shaped, and since the elastic bag body 15 is diffusion deformed from a central point after being pressed against the diaphragm 8 under the injection of hydraulic oil, the contraction and the restoration of the elastic bag body 15 are more facilitated through the horn-shaped configuration, so that the hydraulic tube 7 and the positioning tube 16 cannot interfere with the restoration of the hydraulic tube, and the hydraulic oil can be completely discharged, thereby improving the practicability.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A hydraulic diaphragm metering pump, comprising:
the hydraulic pump comprises a pump body (1), wherein a hydraulic cavity (2) and a medium cavity (3) are formed in the pump body (1), a flow channel (4) is communicated between the hydraulic cavity (2) and the medium cavity (3), suction valves (5) and discharge valves (6) are respectively communicated with the medium cavity (3) at two opposite sides of the pump body (1), and a hydraulic pipe (7) communicated with the hydraulic cavity (2) is arranged at one side of the pump body (1);
a diaphragm (8) disposed within the hydraulic chamber (2);
the elastic steel sheet (9) is of an arc-shaped structure, and two ends of the elastic steel sheet (9) are slidably arranged on the inner wall of the hydraulic cavity (2) and are respectively positioned on two sides of the flow channel (4);
and a guide (10) which is arranged in the flow channel (4) and is used for guiding the deformation of the elastic steel sheet (9).
2. The hydraulic diaphragm metering pump according to claim 1, wherein two sliding rods (11) are connected to opposite sides of the inner wall of the hydraulic chamber (2), two movable plates (12) are slidably sleeved on the two sliding rods (11), and two ends of the elastic steel sheet (9) are hinged to the two movable plates (12) respectively.
3. The hydraulic diaphragm metering pump according to claim 2, characterized in that a first spring (13) is mounted between the opposite sides of the two movable plates (12) and the opposite sides of the inner wall of the hydraulic chamber (2), respectively, and is sleeved on the slide rod (11).
4. The hydraulic diaphragm metering pump according to claim 1, characterized in that the guide (10) comprises:
a collar (1001) disposed within the flow channel (4) by struts;
and one end of the guide rod (1002) is connected with the elastic steel sheet (9), and the other end of the guide rod penetrates through the lantern ring (1001) in a sliding manner and is provided with a limiting block.
5. The hydraulic diaphragm metering pump of claim 4, wherein a second spring (14) is mounted between the collar (1001) and the elastic steel sheet (9) and is sleeved on the guide rod (1002).
6. The hydraulic diaphragm metering pump according to claim 1, characterized in that the inner wall of the hydraulic tube (7) is connected with an elastic bladder (15).
7. The hydraulic diaphragm metering pump according to claim 6, characterized in that the inner wall of the hydraulic tube (7) is provided with a positioning tube (16), an annular cavity is provided between the positioning tube (16) and the hydraulic tube (7), and the elastic bladder (15) is located in the annular cavity.
8. The hydraulic diaphragm metering pump according to claim 7, characterized in that the end of the hydraulic tube (7) and the positioning tube (16) located in the hydraulic chamber (2) is configured as a horn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321556903.9U CN220059868U (en) | 2023-06-16 | 2023-06-16 | Hydraulic diaphragm metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321556903.9U CN220059868U (en) | 2023-06-16 | 2023-06-16 | Hydraulic diaphragm metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059868U true CN220059868U (en) | 2023-11-21 |
Family
ID=88754554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321556903.9U Active CN220059868U (en) | 2023-06-16 | 2023-06-16 | Hydraulic diaphragm metering pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059868U (en) |
-
2023
- 2023-06-16 CN CN202321556903.9U patent/CN220059868U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3884598A (en) | Piston assembly for diaphragm pump | |
| CN105952633A (en) | Straight-through combination valve applied to high-pressure reciprocation plunger pump hydraulic end | |
| CN220059868U (en) | Hydraulic diaphragm metering pump | |
| CN100381703C (en) | Diaphragm pump | |
| CN212360123U (en) | Micro-flow metering pump with diaphragm mechanism | |
| CN203560050U (en) | Five-plunger high-pressure pump power end capable of reducing torque of crankshaft | |
| CN215109306U (en) | Pump head and pump body structure of liquid chromatography infusion pump | |
| CN108533478B (en) | A kind of mechanically actuated diaphragm metering pump that outlet pressure improves | |
| CN213870247U (en) | Hydraulic end of three-plunger reciprocating ultrahigh pressure plunger pump | |
| CN215486940U (en) | Hydraulic cylinder sealing device | |
| JP2010229955A (en) | Electromagnetic pump | |
| CN210889284U (en) | Pneumatic diaphragm pump | |
| CN2565691Y (en) | Double pipeline hydraulic brake main cylinder | |
| CN220849969U (en) | Diaphragm chamber discharging mechanism of volumetric pump | |
| CN220319739U (en) | Reciprocating metering pump | |
| CN219932412U (en) | Adjustable diaphragm pump | |
| CN220849968U (en) | Diaphragm chamber feeding mechanism of volumetric pump | |
| CN207961503U (en) | A kind of elastic piston sealing structure and medical high-pressure pumping system | |
| CN214743561U (en) | Plug-in mounting piston type one-way valve | |
| CN220248334U (en) | Liquid inlet and outlet valve group structure and ultrahigh-pressure plunger pump | |
| CN211738123U (en) | One-way valve capable of conveying high-viscosity medium | |
| CN220551206U (en) | Fluid end assembly and plunger pump | |
| CN108317249A (en) | A kind of elastic piston sealing structure and medical high-pressure pumping system | |
| CN219865450U (en) | One-way valve of diaphragm pump | |
| CN216342617U (en) | Ultrahigh pressure metering pump adopting metal diaphragm structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |