CN215258119U - Coaxial pilot-operated type double-flow electromagnetic valve - Google Patents
Coaxial pilot-operated type double-flow electromagnetic valve Download PDFInfo
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- CN215258119U CN215258119U CN202121216225.2U CN202121216225U CN215258119U CN 215258119 U CN215258119 U CN 215258119U CN 202121216225 U CN202121216225 U CN 202121216225U CN 215258119 U CN215258119 U CN 215258119U
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Abstract
The utility model discloses a coaxial guide's formula double flow solenoid valve that oiling machine was used belongs to tanker aircraft solenoid valve technical field. The pilot head assembly of the existing double-flow electromagnetic valve is connected with the valve body in a threaded manner, so that the coaxiality of the pilot head assembly and the pilot hole of the valve body is not high, and the sealing effect is not ideal; the pilot head assembly and the coil are fixed by nuts, so that the hidden danger of looseness exists, and the stable performance of the double-flow electromagnetic valve is influenced. The pilot head assembly and the valve body of the utility model are in clearance fit, and the connection mode of fixing is pressed by screws, thus effectively improving the sealing performance; and the front end of the pilot head assembly is provided with a thread and a clamp spring groove structure, so that the stability of the product is improved, and the selection diversity of a user is considered.
Description
Technical Field
The utility model relates to a coaxial guide's formula double flow solenoid valve that oiling machine was used belongs to tanker aircraft solenoid valve technical field.
Background
The existing double-flow electromagnetic valve for the oiling machine generally comprises a coil, a valve body, a valve cover, a pilot head assembly, a diaphragm assembly and a main spring, wherein the valve body and the valve cover are used as a structural foundation, the pilot head assembly and the valve body are connected in a threaded mode, and due to the existence of a threaded gap, the coaxiality of the pilot head assembly and a pilot hole of the valve body is not high, so that when a movable iron core of the pilot head assembly axially acts, the contact with a valve port of the pilot hole of the valve body is not tight enough, and the sealing effect is not ideal; the pilot head assembly and the coil are fixed by the nut, and the nut has the hidden trouble of looseness in the using process of the oiling machine, so that the stability of the double-flow electromagnetic valve is influenced.
Disclosure of Invention
To the above-mentioned not enough, the utility model aims at providing a coaxial guide's formula double flow solenoid valve that the leakproofness is good, stable performance.
The following technical scheme is adopted specifically: a coaxial pilot type double-flow electromagnetic valve comprises a coil, a pilot head assembly, a valve body, a diaphragm assembly, a main spring and a valve cover which are sequentially combined from top to bottom; the pilot head assembly is in clearance fit with the valve body, and is pressed and fixed by a screw; the front end of the pilot head assembly is provided with a thread and a clamp spring groove structure.
Drawings
Fig. 1 is a schematic structural diagram of the present invention. Fig. 2 is a cross-sectional view taken along a-a in fig. 1.
In fig. 1, 1: coil, 2: valve body pilot hole, 3: valve body, 4: valve cover, 5: diaphragm assembly, 6: main spring, 7: movable iron core, 8: a pilot head assembly. In fig. 2, 9: circlip, 10: and (4) screws.
Detailed Description
As shown in fig. 1-2, a coaxial pilot type dual-flow solenoid valve includes a coil 1, a pilot head assembly 8, a valve body 3, a diaphragm assembly 5, a main spring 6, and a valve cover 4, which are sequentially combined from top to bottom. The coaxial pilot type double-flow electromagnetic valve is characterized in that the pilot head assembly 8 and the valve body 3 are in clearance fit, and a screw 10 is used for pressing and fixing the connection mode, so that the pilot head assembly 8 and the valve body pilot hole 2 are high in coaxiality, the movable iron core 7 in the pilot head assembly 8 is in closer contact with a valve port of the valve body pilot hole 2, and the sealing performance is better.
According to the coaxial pilot type double-flow electromagnetic valve, the front end of the pilot head assembly 8 is provided with the threads and the clamp spring groove structure, so that the coil 1 can be fixed by the clamp spring 9 and is not easy to loosen, the requirement of threaded connection is reserved for part of users, and the stability of the product is improved.
Claims (2)
1. A coaxial pilot type double-flow electromagnetic valve comprises a coil (1), a pilot head assembly (8), a valve body (3), a diaphragm assembly (5), a main spring (6) and a valve cover (4), which are sequentially combined from top to bottom; the pilot valve is characterized in that the pilot head assembly (8) and the valve body (3) are in clearance fit and are fixedly pressed by a screw (10).
2. The dual flow solenoid valve as claimed in claim 1 wherein said pilot head assembly (8) is provided with a screw thread and snap spring slot arrangement at the forward end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121216225.2U CN215258119U (en) | 2021-06-02 | 2021-06-02 | Coaxial pilot-operated type double-flow electromagnetic valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121216225.2U CN215258119U (en) | 2021-06-02 | 2021-06-02 | Coaxial pilot-operated type double-flow electromagnetic valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215258119U true CN215258119U (en) | 2021-12-21 |
Family
ID=79475729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121216225.2U Active CN215258119U (en) | 2021-06-02 | 2021-06-02 | Coaxial pilot-operated type double-flow electromagnetic valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215258119U (en) |
-
2021
- 2021-06-02 CN CN202121216225.2U patent/CN215258119U/en active Active
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