CN2842004Y - Liquid precompression pump - Google Patents
Liquid precompression pump Download PDFInfo
- Publication number
- CN2842004Y CN2842004Y CN 200520141871 CN200520141871U CN2842004Y CN 2842004 Y CN2842004 Y CN 2842004Y CN 200520141871 CN200520141871 CN 200520141871 CN 200520141871 U CN200520141871 U CN 200520141871U CN 2842004 Y CN2842004 Y CN 2842004Y
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- Prior art keywords
- liquid
- piston cylinder
- way valve
- hole
- housing
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- Expired - Lifetime
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Abstract
The utility model discloses a liquid precompression pump, which comprises a shell body, a liquid inlet one-way valve, a liquid outlet one-way valve, a piston cylinder, and a piston rod, wherein the shell body is provided with a liquid inlet hole, a liquid outlet hole, and a flow rotating hole, and the liquid inlet hole, the liquid outlet hole, and the flow rotating hole are mutually communicated with each other; the liquid inlet one-way valve is arranged at the liquid inlet hole of the shell body, and the liquid inlet one-way valve is provided with a liquid inlet; the liquid outlet one-way valve is arranged at the liquid outlet hole of the shell body, and the liquid outlet one-way valve is provided with a liquid outlet; the piston cylinder is connected to the flow rotating hole of the shell body, and the piston rod is arranged in the piston cylinder; the front part of the piston rod is provided with a piston ring, and the rear part of the piston rod is provided with a handle. Because the utility model uses the method that the piston ring is directly pulled by the piston rod to extract liquid, the time for once a liquid extraction in an operation is shorter, and a valve does not need to be manually closed when the operation is carried out; even if the number of times of reciprocating extractions is larger, compared with a traditional precompression device, the utility model still saves plenty of time for liquid extractions.
Description
Technical field
The utility model relates to the pressure checking field of instrument and apparatus, particularly relates to a kind of pre-press pump of liquid that is applicable in the pressure meter calibration system.
Background technique
At present, the pre-press pump of employed liquid in pressure meter calibration instrument or pressure meter calibration system, mostly be to adopt screw mechanism to form the straight-line displacement of sealing plug, in addition, also need be in the liquid memory outlet port and inlet of pressure checking system respectively establish a valve, when extracting liquid, the valve of closing pressure check system inlet, open the valve in liquid memory outlet port, rotate screw mechanism and drive the operation that liquid is extracted in the sealing plug straight-line displacement, when when the pressure checking system discharges liquid, the valve in closing liquid storage outlet port, the valve of cracking pressure check system inlet rotates screw mechanism and drives the sealing plug straight-line displacement, liquid is released into the pressure checking system, and applies the generation preload pressure.
The pre-press pump of traditional liquid, it is longer that the spiral of manual-lock Open valve, multi-turn operation at any time makes the time of sealing plug single extraction liquid during operation, when if the liquid requirement is many, repeatedly back and forth operation such as extractions has caused the cumulative time of extraction liquid longer.In addition, when sealing plug and screw rod rotate simultaneously, when producing normal direction frictional force, will inevitably produce tangent friction force, and tangent friction force and tangential force friction easily cause the wearing and tearing of seal arrangement, reduced the working life of product.
The model utility content
The purpose of this utility model provides a kind of simple in structure, easy and simple to handle, short pre-press pump of liquid of extraction liquid needed time.
For achieving the above object, technical solution adopted in the utility model: the pre-press pump of a kind of liquid, it includes: a housing, it is provided with inlet opening, a liquid outlet opening and a turn of tidal stream hole, and described inlet opening, liquid outlet opening and turn of tidal stream hole communicate with each other; One feed liquor one-way valve, it is arranged on the inlet opening place of described housing, and described feed liquor one-way valve is provided with a liquid entering hole; One fluid one-way valve, it is arranged on the liquid outlet opening place of described housing, and described fluid one-way valve is provided with a liquid outlet; One piston cylinder, it is connected the place, turn of tidal stream hole of described housing; One piston rod, it is arranged in the described piston cylinder, and the front portion of described piston rod is provided with a piston ring, and the rear portion of piston rod is provided with one handle.
In the pre-press pump of above-mentioned liquid, the front portion of described piston cylinder is provided with a connecting bolt, and described connecting bolt runs through the place, turn of tidal stream hole that is connected housing behind the piston cylinder; The center of connecting bolt is provided with a fluid hole vertically, connecting bolt radially be provided with the through hole that runs through connecting bolt, the liquid outlet place of corresponding through hole of the cylindrical of connecting bolt and piston cylinder is provided with fluid groove, and described piston cylinder is communicated with fluid groove, through hole, fluid hole and turn of tidal stream hole successively.
In the pre-press pump of above-mentioned liquid, adopt between described connecting bolt and the housing to be threaded; The joint of the joint of described connecting bolt and housing and connecting bolt and piston cylinder is provided with seal ring.
In the pre-press pump of above-mentioned liquid, adopt between described feed liquor one-way valve and the housing to be threaded; The joint of feed liquor one-way valve and housing is provided with seal ring.
In the pre-press pump of above-mentioned liquid, adopt between described fluid one-way valve and the housing to be threaded; The joint of fluid one-way valve and housing is provided with seal ring.
In the pre-press pump of above-mentioned liquid, the rear portion of described piston cylinder is provided with the sealing guiding device, and will seal guiding device by a gland and be fixed in the piston cylinder, adopts between described gland and the piston cylinder to be threaded.
The utility model is owing to take above design, it has the following advantages: 1, the utility model is owing to adopt piston rod direct pull piston ring to extract the mode of liquid, the time of single extraction liquid was shorter when this just made operation, need not the manual-lock Open valve during operation, even when back and forth the number of times that extracts is many, still will save many extraction liquid times than traditional prepressing device.2, the angle of the piston cylinder in the utility model can be regulated, and this has just made things convenient for the user to regulate a best work angle when manipulating, and uses more flexibly, designs hommization more.3, simple in structure, with low cost, the long service life of the utility model is beneficial to and promotes and use.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, be the pre-press pump of a kind of liquid provided by the utility model, it includes:
One housing 1, it is provided with inlet opening 11, a liquid outlet opening 12 and a turn of tidal stream hole 13, and described inlet opening 11, liquid outlet opening 12 and turn of tidal stream hole 13 communicate with each other;
One feed liquor one-way valve 2, it is arranged on inlet opening 11 places of housing 1, and feed liquor one-way valve 2 is provided with a liquid entering hole 21, and liquid entering hole 21 can be connected by pipeline with liquid memory;
One fluid one-way valve 3, it is arranged on liquid outlet opening 12 places of housing 1, and fluid one-way valve 3 is provided with a liquid outlet 31, and liquid outlet 31 is connected with the pressure checking loop that needs feed flow by pipeline;
One piston cylinder 4, it is connected 13 places, turn of tidal stream hole of housing 1;
One piston rod 5, it is arranged in the piston cylinder 4, and the front portion of piston rod 5 is provided with a piston ring 51, and the rear portion of piston rod 5 is provided with one handle 52.
In the present embodiment, piston cylinder 4 can be specially with being connected of housing 1: a connecting bolt 6 is set in the front portion of piston cylinder 4, and connecting bolt 6 runs through 13 places, turn of tidal stream hole that are connected housing 1 behind the piston cylinder 4; The center of connecting bolt 6 is provided with a fluid hole 61 vertically, radially being provided with and the fluid hole 61 vertical through holes that run through 62 of connecting bolt 6, liquid outlet 41 places of corresponding through hole 62 of the cylindrical of connecting bolt 6 and piston cylinder 4 are provided with fluid groove 63, after such setting, piston cylinder 4 is communicated with fluid groove 63, through hole 62, fluid hole 61 and turn of tidal stream hole 13 successively.Adopt between connecting bolt 6 and the housing 1 and be threaded; And do not need to be threaded between connecting bolt 6 and the piston cylinder 4, like this, when connecting bolt 6 screw threads unclamp, just can make piston cylinder 4 around connecting bolt 6 rotations, select an angle that helps using operation most, then with connecting bolt 6 screw-threaded couplings.This just makes pre-press operation more flexible.In addition, do not leak in order to guarantee liquid, and be provided with seal ring 64 on the port plane of connecting bolt 6 and piston cylinder 4, housing 1 is provided with seal ring 65 with the plane, another port of piston cylinder 4.
In the present embodiment, can adopt the mode that is threaded between feed liquor one-way valve 2 and the housing 1; And the joint of feed liquor one-way valve 2 and housing 1 is provided with sealing seal ring 22.Also can adopt the mode that is threaded between fluid one-way valve 3 and the housing 1; In addition, fluid one-way valve 3 is provided with seal ring 32 with 1 joint of housing.
In order to guarantee effective cooperation the between piston cylinder 4 and the piston rod 5, the rear portion of piston cylinder 4 is provided with sealing guiding device 42 especially, and will seal guiding device 42 by a gland 43 and be fixed in the piston cylinder 4, adopts between gland 43 and the piston cylinder 4 to be threaded.
The utility model when in use, the liquid entering hole of feed liquor one-way valve 2 is connected by pipeline with liquid memory, the liquid outlet 31 of fluid one-way valve 3 is connected with the pressure checking loop that needs feed flow, and the angle of regulating piston cylinder 4 makes its handle 52 be positioned at most convenient operator's angle then; Operator's pull handle 52, handle 52 drive piston rods 5 and piston ring 51 are moved together backward, because feed liquor one-way valve 2 just can make liquid pass through on the feed liquor direction, and fluid one-way valve 3 just can make liquid pass through on the direction of fluid, like this, liquid in the liquid memory by behind feed liquor one-way valve 2, inlet opening 11, turn of tidal stream hole 13, fluid hole 61, through hole 62 and the fluid groove 63, flow in the piston cylinder 4 successively; The preceding again pushing handle 52 of operator, handle 52 drive piston rods 5 and piston ring 51 are moved forward together, because feed liquor one-way valve 2 just can make liquid pass through on the feed liquor direction, and fluid one-way valve 3 just can make liquid pass through on the direction of fluid, like this, liquid in the piston cylinder 4 is successively by fluid groove 63, through hole 62, fluid hole 61, turn of tidal stream hole 13, behind liquid outlet opening 12 and the fluid one-way valve 3, flow in the pressure checking loop that needs feed flow, if the flowing fluid ratio that needs in the loop more for a long time, then pull handle 52 and preceding pushing handle 52 repeat above-mentioned operation and get final product repeatedly.
Claims (10)
1, the pre-press pump of a kind of liquid is characterized in that it includes:
One housing, it is provided with inlet opening, a liquid outlet opening and a turn of tidal stream hole, and described inlet opening, liquid outlet opening and turn of tidal stream hole communicate with each other;
One feed liquor one-way valve, it is arranged on the inlet opening place of described housing, and described feed liquor one-way valve is provided with a liquid entering hole;
One fluid one-way valve, it is arranged on the liquid outlet opening place of described housing, and described fluid one-way valve is provided with a liquid outlet;
One piston cylinder, it is connected the place, turn of tidal stream hole of described housing;
One piston rod, it is arranged in the described piston cylinder, and the front portion of described piston rod is provided with a piston ring, and the rear portion of piston rod is provided with one handle.
2, the pre-press pump of liquid according to claim 1, it is characterized in that: the front portion of described piston cylinder is provided with a connecting bolt, and described connecting bolt runs through the place, turn of tidal stream hole that is connected housing behind the piston cylinder; The center of connecting bolt is provided with a fluid hole vertically, connecting bolt radially be provided with the through hole that runs through connecting bolt, the liquid outlet place of corresponding through hole of the cylindrical of connecting bolt and piston cylinder is provided with fluid groove, and described piston cylinder is communicated with fluid groove, through hole, fluid hole and turn of tidal stream hole successively.
3, the pre-press pump of liquid according to claim 2 is characterized in that: adopt between described connecting bolt and the housing to be threaded; The joint of the joint of described connecting bolt and housing and connecting bolt and piston cylinder is provided with seal ring.
4, according to claim 1 or the pre-press pump of 2 or 3 described liquid, it is characterized in that: adopt between described feed liquor one-way valve and the housing to be threaded; The joint of feed liquor one-way valve and housing is provided with seal ring.
5, according to claim 1 or the pre-press pump of 2 or 3 described liquid, it is characterized in that: adopt between described fluid one-way valve and the housing to be threaded; The joint of fluid one-way valve and housing is provided with seal ring.
6, the pre-press pump of liquid according to claim 4 is characterized in that: adopt between described fluid one-way valve and the housing to be threaded; The joint of fluid one-way valve and housing is provided with seal ring.
7, according to claim 1 or the pre-press pump of 2 or 3 described liquid, it is characterized in that: the rear portion of described piston cylinder is provided with the sealing guiding device, and will seal guiding device by a gland and be fixed in the piston cylinder, adopt between described gland and the piston cylinder to be threaded.
8, the pre-press pump of liquid according to claim 4, it is characterized in that: the rear portion of described piston cylinder is provided with the sealing guiding device, and will seal guiding device by a gland and be fixed in the piston cylinder, adopts between described gland and the piston cylinder to be threaded.
9, the pre-press pump of liquid according to claim 5, it is characterized in that: the rear portion of described piston cylinder is provided with the sealing guiding device, and will seal guiding device by a gland and be fixed in the piston cylinder, adopts between described gland and the piston cylinder to be threaded.
10, the pre-press pump of liquid according to claim 6, it is characterized in that: the rear portion of described piston cylinder is provided with the sealing guiding device, and will seal guiding device by a gland and be fixed in the piston cylinder, adopts between described gland and the piston cylinder to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520141871 CN2842004Y (en) | 2005-11-24 | 2005-11-24 | Liquid precompression pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520141871 CN2842004Y (en) | 2005-11-24 | 2005-11-24 | Liquid precompression pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842004Y true CN2842004Y (en) | 2006-11-29 |
Family
ID=37445889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520141871 Expired - Lifetime CN2842004Y (en) | 2005-11-24 | 2005-11-24 | Liquid precompression pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842004Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061254A (en) * | 2017-04-08 | 2017-08-18 | 深圳艾卓奇科技有限公司 | A kind of piston pump exhaust structure |
| CN114689238A (en) * | 2021-12-30 | 2022-07-01 | 山东省计量科学研究院 | High-pressure self-cleaning table type hydraulic source |
-
2005
- 2005-11-24 CN CN 200520141871 patent/CN2842004Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061254A (en) * | 2017-04-08 | 2017-08-18 | 深圳艾卓奇科技有限公司 | A kind of piston pump exhaust structure |
| CN114689238A (en) * | 2021-12-30 | 2022-07-01 | 山东省计量科学研究院 | High-pressure self-cleaning table type hydraulic source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING CONST INSTRUMENTS TECHNOLOGY INC. Free format text: FORMER NAME: BEIJING CONST INSTRUMENTS TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 100085, D, block 05A, block 28, information road, Beijing, Haidian District Patentee after: Beijing ConST Instruments Technology Inc. Address before: 100085, Beijing, Haidian District on the road No. 2, 1, international pioneer park, building 7 Patentee before: Beijing CONST Instruments Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061129 |
|
| EXPY | Termination of patent right or utility model |