CN215566677U - Control valve for self-priming pump - Google Patents
Control valve for self-priming pump Download PDFInfo
- Publication number
- CN215566677U CN215566677U CN202120300675.3U CN202120300675U CN215566677U CN 215566677 U CN215566677 U CN 215566677U CN 202120300675 U CN202120300675 U CN 202120300675U CN 215566677 U CN215566677 U CN 215566677U
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- lever arm
- valve
- compound lever
- self
- connecting rod
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Abstract
The utility model provides a control valve for self-priming pump, a serial communication port, include the valve body that is connected to the self-priming pump through vacuum hose, the valve body is fixed on the casing, be equipped with the stopper on the valve rod, the opening part fixed connection of disk seat and valve body, form sealedly when the valve is closed, the valve rod passes the disk seat and the lower extreme of valve rod is connected with the connecting rod, the connecting rod rotates with last compound lever arm to be connected, it is connected to the support with pivot mode through pivot point one to go up compound lever arm, support and casing fixed connection, vertical connecting arm rotates with the other end of last compound lever arm to be connected, vertical connecting arm rotates with lower compound lever arm to be connected, lower compound lever arm is connected to the support with pivot mode through lower pivot point two, the other end of lower compound lever arm rotates with the connecting rod that floats, floating connecting rod and float fixed connection.
Description
Technical Field
The utility model relates to a control valve for a self-priming pump, and belongs to the field of pump equipment.
Background
When the self-priming pump is too long in self-priming time, a vacuum pump needs to be added for assistance, and a control valve needs to be installed between the vacuum pump and the self-priming pump to meet actual needs.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects and shortcomings, the utility model provides a control valve for a self-priming pump.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the utility model provides a control valve for self-priming pump, a serial communication port, include the valve body that is connected to the self-priming pump through vacuum hose, the valve body is fixed on the casing, be equipped with the stopper on the valve rod, the opening part fixed connection of disk seat and valve body, form sealedly when the valve is closed, the valve rod passes the disk seat and the lower extreme of valve rod is connected with the connecting rod, the connecting rod rotates with last compound lever arm to be connected, it is connected to the support with pivot mode through pivot point one to go up compound lever arm, support and casing fixed connection, vertical connecting arm rotates with the other end of last compound lever arm to be connected, vertical connecting arm rotates with lower compound lever arm to be connected, lower compound lever arm is connected to the support with pivot mode through lower pivot point two, the other end of lower compound lever arm rotates with the connecting rod that floats, floating connecting rod and float fixed connection.
The utility model has the following beneficial effects: simple structure has realized the perfect connection of vacuum pump and self priming pump to liquid flow direction vacuum pump in the self priming pump has effectively been prevented.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
fig. 1 is a schematic structural view of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "inside", "outside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
As shown in figure 1, the control valve for the self-priming pump comprises a valve body 2 connected to the self-priming pump through a vacuum hose 1, the valve body 2 is fixed on a shell 15, a limit block 14 is arranged on a valve rod 3, a valve seat 13 is fixedly connected with an opening of the valve body 2 to form a seal when the valve is closed, the valve rod 3 passes through the valve seat 13, the lower end of the valve rod 3 is connected with a connecting rod 4, the connecting rod 4 is rotatably connected with an upper composite lever arm 5, the upper composite lever arm 5 is pivotally connected to a bracket 7 through a pivot point I6, the bracket 7 is fixedly connected with the shell 15, a vertical connecting arm 8 is rotatably connected with the other end of the upper composite lever arm 5, the vertical connecting arm 8 is rotatably connected with a lower composite lever arm 9, the lower composite lever arm 9 is pivotally connected to the bracket 7 through a lower pivot point II 10, and the other end of the lower composite lever arm 9 is rotatably connected with a floating connecting rod 11, the floating connecting rod 11 and the floater 12 are fixedly connected.
In actual operation, in order to improve the self-priming efficiency of the self-priming pump, a vacuum pump is added at the inlet of the self-priming pump for matching use, a vacuum hose 1 is connected with the vacuum pump, a shell 15 is communicated and fixedly connected with the inlet of the self-priming pump, when the liquid level in the housing 15 falls, the float 12 is pulled down by gravity, which is transmitted through a series of connecting arms to move the valve stem 3 downwards and will open the valve, because the action of the stop block 14 causes the valve rod 3 not to be separated from the valve seat 13, the vacuum pump starts to work to pump air out of the upper part of the shell 15, the liquid level in the shell 15 rises, and when the liquid level in the shell 15 is high enough, as the float receives increased buoyancy, the float is forced to move upwardly and the force generated by the float buoyancy is transmitted through a series of connecting arms to the valve stem, the transmitted force closing the valve and thereby preventing liquid from being drawn into the vacuum hose and hence into the vacuum pump.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a control valve for self-priming pump, a serial communication port, include the valve body that is connected to the self-priming pump through vacuum hose, the valve body is fixed on the casing, be equipped with the stopper on the valve rod, the opening part fixed connection of disk seat and valve body, form sealedly when the valve is closed, the valve rod passes the disk seat and the lower extreme of valve rod is connected with the connecting rod, the connecting rod rotates with last compound lever arm to be connected, it is connected to the support with pivot mode through pivot point one to go up compound lever arm, support and casing fixed connection, vertical connecting arm rotates with the other end of last compound lever arm to be connected, vertical connecting arm rotates with lower compound lever arm to be connected, lower compound lever arm is connected to the support with pivot mode through lower pivot point two, the other end of lower compound lever arm rotates with the connecting rod that floats, floating connecting rod and float fixed connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300675.3U CN215566677U (en) | 2021-02-03 | 2021-02-03 | Control valve for self-priming pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120300675.3U CN215566677U (en) | 2021-02-03 | 2021-02-03 | Control valve for self-priming pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215566677U true CN215566677U (en) | 2022-01-18 |
Family
ID=79837952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120300675.3U Active CN215566677U (en) | 2021-02-03 | 2021-02-03 | Control valve for self-priming pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215566677U (en) |
-
2021
- 2021-02-03 CN CN202120300675.3U patent/CN215566677U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |