CN204721756U - For the sealed terminal box of pneumatic operated valve - Google Patents
For the sealed terminal box of pneumatic operated valve Download PDFInfo
- Publication number
- CN204721756U CN204721756U CN201520041205.4U CN201520041205U CN204721756U CN 204721756 U CN204721756 U CN 204721756U CN 201520041205 U CN201520041205 U CN 201520041205U CN 204721756 U CN204721756 U CN 204721756U
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- flange
- terminal box
- platform edges
- lid
- operated valve
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Abstract
The utility model is a kind of sealed terminal box for pneumatic operated valve, comprise the box body with opening and the lid closing described opening, described box body comprises bottom surface, from the side that described bottom edge upwards extends, the platform edges that extends internally above described side, described opening is upwards extend from the inward flange of described platform edges to form cylindrical structure, described lid has the flange to downward-extension, described box body and lid are fixed by the some screws penetrating described flange and platform edges successively, are clamped with the packing ring around described opening between described flange and platform edges.The utility model forms the sealing surface with certain depth by the packing ring blocking platform edges and flange gap, and after terminal box is assembled, inside and outside gas cannot be revealed by the gap generation of box body and lid, improves the useful life of element in box.
Description
Technical field
The utility model relates to valve technology field, particularly the sealed terminal box of a kind of good seal performance, long service life.
Background technology
Valve is the control assembly in fluid delivery system, has cut-off, adjustment, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.Valve can be used for the flowing controlling all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Large size valve adopts the kind of pneumatic actuator a lot, its operation principle is that the input pressure of pneumatic regulation meter converts push rod change in displacement to, connect with valve body part and just spool can be moved on to the position corresponding with input signal, therefore pneumatic actuator is also power device.But, the valve of this structure because of tracheae cable more, source of the gas sealing is poor, and easily by the impact of dust and other relevant environmental conditions, once there is gas leakage or covered with dust, may cause wire short-circuiting, Leakage Gas, serious affects useful life.
Therefore, be necessary to provide a kind of new sealed terminal box to solve the problems referred to above.
Utility model content
Main purpose of the present utility model is the sealed terminal box providing a kind of good seal performance, long service life.
The utility model is achieved through the following technical solutions above-mentioned purpose: a kind of sealed terminal box for pneumatic operated valve, comprise the box body with opening and the lid closing described opening, described box body comprises bottom surface, from the side that described bottom edge upwards extends, the platform edges extended internally above described side, described opening is upwards extend from the inward flange of described platform edges to form cylindrical structure, described lid has the flange to downward-extension, described box body and lid are fixed by the some screws penetrating described flange and platform edges successively, the packing ring around described opening is clamped with between described flange and platform edges.
Concrete, described box body and lid are metal material.
Concrete, be provided with the flange collar around described opening above described platform edges.
Further, described flange collar has 1-3.
Concrete, described packing ring has the neck of the described opening outer surface of an encirclement.
Further, described opening outer surface is provided with the raised line for blocking described neck.
Concrete, the lower surface of described flange has embossing.
Adopt technique scheme, the beneficial effect of technical solution of the present invention is: form the sealing surface with certain depth by the packing ring of blocking platform edges and flange gap, after terminal box is assembled, inside and outside gas cannot produce leakage by the gap of box body and lid, improves the useful life of element in box.
Accompanying drawing explanation
Fig. 1 is the explosive view of the utility model for the sealed terminal box of pneumatic operated valve;
Fig. 2 is the vertical view of box body;
Fig. 3 is the enlarged partial sectional view of sealing area.
Numeral in figure:
1-box body, 11-bottom surface, 12-side, 13-platform edges, 131-flange collar, 14-opening, 141-raised line;
2-lid, 21-flange, 211-embossing;
3-screw;
4-packing ring, 41-neck.
Embodiment
Below in conjunction with specific embodiment, the utility model is described in further detail.
As shown in Figure 1 to Figure 3, a kind of sealed terminal box for pneumatic operated valve of the present utility model, comprise box body 1 and the lid 2 of metal material, the platform edges 13 extended internally above the side 12 that box body 1 comprises bottom surface 11, upwards extend from edge, bottom surface 11, from the side 12 and the opening 14 of cylindrical structure upwards extended from the inward flange of platform edges 13, lid 2 has the flange 21 to downward-extension, box body 1 is fixed by four screws 3 penetrating flange 21 and platform edges 13 successively with lid 2, is clamped with the packing ring 4 around opening 14 between flange 21 and platform edges 13.When box body 1 is fixed by screw 3 with lid 2, air inside and outside terminal box can only be passed in and out by the gap of flange 21 with platform edges 13, owing to being provided with packing ring 4 in this gap, therefore terminal box is inside and outside completely cuts off and has longer sealing depth, therefore sealing is better, leakage probability reduces, the long service life of element in box.
As shown in Figure 2 and Figure 3, be provided with two flange collars 131 around opening 14 above platform edges 13, the lower surface of flange 21 has embossing 211.The key of sealing success or failure is whether packing ring 4 upper and lower surface closely cooperates with box body 1 and lid 2, when platform edges 13 lives packing ring 4 from sandwich respectively with flange 21, strain is there is in packing ring 4 with flange collar 131 and embossing 211, form finer and close sealing, wherein each flange collar 131 place can form an interception line, makes air-tightness better.
As shown in Figure 1, Figure 3, packing ring 4 has the neck 41 of encirclement opening 14 outer surface, and opening 14 outer surface is provided with the raised line 141 for blocking neck 41.When after terminal box assembling, neck 41 is under pressure and deformation occurs and is wrapped on opening 14, makes sealing area extend to opening 14 outer wall, adds sealing depth.Time raised line 141 makes lid 2 dismantle, packing ring 4 is stayed on box body 1, avoids dropping.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (7)
1. the sealed terminal box for pneumatic operated valve, comprise the box body with opening and the lid closing described opening, it is characterized in that: described box body comprises bottom surface, from the side that described bottom edge upwards extends, the platform edges that extends internally above described side, described opening is upwards extend from the inward flange of described platform edges to form cylindrical structure, described lid has the flange to downward-extension, described box body and lid are fixed by the some screws penetrating described flange and platform edges successively, are clamped with the packing ring around described opening between described flange and platform edges.
2. the sealed terminal box for pneumatic operated valve according to claim 1, is characterized in that: described box body and lid are metal material.
3. the sealed terminal box for pneumatic operated valve according to claim 1, is characterized in that: be provided with the flange collar around described opening above described platform edges.
4. the sealed terminal box for pneumatic operated valve according to claim 3, is characterized in that: described flange collar has 1-3.
5. the sealed terminal box for pneumatic operated valve according to claim 1, is characterized in that: described packing ring has the neck of the described opening outer surface of an encirclement.
6. the sealed terminal box for pneumatic operated valve according to claim 5, is characterized in that: described opening outer surface is provided with the raised line for blocking described neck.
7. the sealed terminal box for pneumatic operated valve according to claim 1, is characterized in that: the lower surface of described flange has embossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520041205.4U CN204721756U (en) | 2015-01-22 | 2015-01-22 | For the sealed terminal box of pneumatic operated valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520041205.4U CN204721756U (en) | 2015-01-22 | 2015-01-22 | For the sealed terminal box of pneumatic operated valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204721756U true CN204721756U (en) | 2015-10-21 |
Family
ID=54320713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520041205.4U Active CN204721756U (en) | 2015-01-22 | 2015-01-22 | For the sealed terminal box of pneumatic operated valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204721756U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671554A (en) * | 2019-09-25 | 2020-01-10 | 大同新成新材料股份有限公司 | Machine sealing device made of carbon composite material |
| CN110920538A (en) * | 2019-11-07 | 2020-03-27 | 河南美力达汽车有限公司 | Filter for preventing rapid torque in new energy automobile driving |
-
2015
- 2015-01-22 CN CN201520041205.4U patent/CN204721756U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671554A (en) * | 2019-09-25 | 2020-01-10 | 大同新成新材料股份有限公司 | Machine sealing device made of carbon composite material |
| CN110920538A (en) * | 2019-11-07 | 2020-03-27 | 河南美力达汽车有限公司 | Filter for preventing rapid torque in new energy automobile driving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |