CN204512475U - A kind of fire hydrant bottom sealing device - Google Patents
A kind of fire hydrant bottom sealing device Download PDFInfo
- Publication number
- CN204512475U CN204512475U CN201420849700.3U CN201420849700U CN204512475U CN 204512475 U CN204512475 U CN 204512475U CN 201420849700 U CN201420849700 U CN 201420849700U CN 204512475 U CN204512475 U CN 204512475U
- Authority
- CN
- China
- Prior art keywords
- fire hydrant
- valve rod
- caulking gum
- outer cone
- cone
- 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.)
- Expired - Fee Related
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The utility model discloses a kind of fire hydrant bottom sealing device, relate to fire hydrant field.Comprise regulator control system, sealing system and filtration system, wherein, regulator control system is disposed with drive nut, upper valve rod and lower valve rod from top to bottom, and lower valve rod is by being connected with sealing system through the positioning plate in the middle part of fire hydrant; Sealing system is provided with the annular steelframe posted and fixed with inwall, and annular steelframe inner ring is provided with sealed cover, and the bottom surface retaining ring of sealed cover is wound with outer cone caulking gum, and the outer wall of its inwall and outer cone caulking gum is fitted; The inner side of outer cone caulking gum is provided with the inner cone of fitting with its inwall and reduces pressure block, the lower end of this inner cone decompression block by spring be fixedly installed in the filter screen of water intake bottom fire hydrant and be connected.The utility model seal arrangement can not only reduce high pressure water and directly impact outer cone caulking gum, makes high pressure water become slip to impact with outer cone caulking gum, strengthens sealing effect, also stops entering of sandstone by filtrating equipment.
Description
Technical field
The utility model relates to fire hydrant field, is specifically related to a kind of fire hydrant bottom sealing device.
Background technique
Existing Outdoor Fire Hydrant, in use, sandstone are had because connecting in the water pipeline bottom fire hydrant, cause the sealing effect at fire hydrant sealed bottom place not good, often have water leakage phenomenon to occur, need professional and technical personnel frequently to keep in repair, add the maintenance cost of fire hydrant, waste water resources.Through many experiments, analyzing the reason producing the problems referred to above is: sealing place bottom existing Outdoor Fire Hydrant is pallet shape, sandstone not only upwards cannot wash away with high pressure water, and remain in sealing pallet and be convenient to and accumulate gradually, long-time so cause sealing pallet cannot carry out good sealing again.
Model utility content
The purpose of this utility model is for solving the problem, and provides one that sandstone can be made not retain when impacting with high pressure, has the fire hydrant bottom sealing device of excellent sealing effect.
For achieving the above object, the technological scheme that the utility model adopts is:
A kind of fire hydrant bottom sealing device, comprise regulator control system and sealing system, described regulator control system is positioned at the top of fire hydrant, this regulator control system is connected with the sealing system be located at bottom fire hydrant, it is characterized in that: described regulator control system comprises the drive nut being located at fire hydrant top, this drive nut lower end is connected with vertical upper valve rod, and the lower end of this upper valve rod is connected with lower valve rod by sleeve pipe, and described lower valve rod is located at the middle part of fire hydrant; The middle part of fire hydrant is provided with positioning plate, and described lower valve rod is connected with sealing system through positioning plate; Described sealing system comprises annular steelframe, and the fire hydrant inwall below this annular steelframe and aforementioned positioning plate posts and fixes, and the intermediate throughholes of this annular steelframe is provided with the sealed cover consistent with its internal diameter; The bottom surface retaining ring of described sealed cover is wound with outer cone caulking gum, and the inwall of the outer wall of outer cone caulking gum and described annular steelframe is fitted; The inner side of described outer cone caulking gum is provided with the inner cone of fitting with its inwall and reduces pressure block, the lower end of this inner cone decompression block by spring be fixedly installed in the filter screen of water intake bottom fire hydrant and be connected; Block is reduced pressure with spring until be connected with filter screen through sealing clamp, inner cone successively in the bottom of described lower valve rod.
Described upper valve rod is connected with described sleeve pipe by latch.
Between described sleeve pipe and lower valve rod, damping spring is installed, to strengthen the regulating effect of regulator control system.
Described sealed cover is fixedly connected with described outer cone caulking gum by the set screw vertically penetrated.
Technique effect of the present utility model:
1, decrease high pressure water and directly impact outer cone caulking gum, make high pressure water become slip to impact with outer cone caulking gum; 2, because tapered gap is impartial, large sandstone are filtered net and stop, and are less than the washed away of tapered gap, and taperedly do not impact blind area, so sandstone also cannot retain; 3, only with one piece of outer cone caulking gum, inside and outside is all tapered, and during closedown, outer cone rubber coordinates with base upper steel bowl, and inner cone rubber coordinates with tapered decompression block, and hydraulic impact is larger, seals tighter, and outer cone caulking gum also can complementary seal under inside and outside extruding; 4, assembling and easy to maintenance; 5, eliminate rubber to be occurred by obscission after water slug.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Illustrate: 1, drive nut 2, upper valve rod 3, sleeve pipe 4, latch 5, lower valve rod 6, damping spring 7, positioning plate 8, annular steelframe 9, sealed cover 10, outer cone caulking gum 11, set screw 12, inner cone decompression block 13, spring 14, filter screen.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Fire hydrant bottom sealing device as shown in Figure 1, this device comprises regulator control system, sealing system and filtration system.Wherein, regulator control system is positioned at the top of fire hydrant, and this regulator control system is connected with the sealing system be located at bottom fire hydrant, filtrating equipment be connect with fire hydrant bottom the filter screen (14) of water intake.
In regulator control system, the top of fire hydrant is provided with drive nut (1), this drive nut (1) lower end is connected with vertical upper valve rod (2), the lower end of this upper valve rod (2) is connected with by latch (4), junction point both this latch (4) vertically inserts, sleeve pipe (3) bottom is provided with damping spring (6), to strengthen the regulating effect of regulator control system, until sleeve pipe (3) lower end is connected with the lower valve rod be located in the middle part of fire hydrant (5).Connected positioning plate (7) is gone back at the middle part of fire hydrant, and lower valve rod (5) is connected with sealing system through positioning plate (7).
In sealing system, be provided with the annular steelframe (8) posted and fixed with the fire hydrant inwall of aforementioned positioning plate (7) below, the intermediate throughholes of this annular steelframe (8) is provided with the sealed cover (9) consistent with this intermediate throughholes internal diameter.The set screw (11) that the underrun of sealed cover (9) is vertically inserted is provided with outer cone caulking gum (10), make this outer cone caulking gum (10) be surrounded on the bottom surface of sealed cover (9), and the inwall of the outer wall of this outer cone caulking gum (10) and above-mentioned annular steelframe (8) is fitted.The inner side of outer cone caulking gum (10) is provided with the inner cone of fitting with its inwall and reduces pressure block (12), and the lower end of this inner cone decompression block (12) is connected with the filter screen (14) being fixedly installed in fire hydrant bottom by spring (13); Block (12) is reduced pressure with spring (13) until be connected with filter screen (14) through sealing clamp, inner cone successively in above-mentioned lower valve rod (5) bottom.
During use, by fire-fighting special spanner, drive nut (1) is rotated counterclockwise left, makes drive nut (1) turn upper valve rod (2) and make it move down.When upper valve rod (2) moves down, lower valve rod (5) also extrudes inner cone decompression block (12) and spring (13) downwards simultaneously, and spring (13) is shunk gradually.Now inner cone decompression block (12) departs from gradually inside outer cone caulking gum (10) and allows water pass through, to alleviate the pressure of inner chamber bottom fire hydrant.Lower valve rod (5) drops to after decompression completes, and outer cone caulking gum (10) also departs from annular steelframe (8) gradually, allows current pass through and reaches required flow and bulk range.
After finishing using, by fire-fighting special spanner, drive nut (1) is turned clockwise to the right, make drive nut (1) turn upper valve rod (2) make it move up.When upper valve rod (2) moves up, lower valve rod (5) also synchronously upwards promotes, and now spring (13) starts resilience, and outer cone caulking gum (10) is drawn close and gluing, sealing to the inwall bowl of annular steelframe (8) gradually, blocks current.When after outer cone caulking gum (10) sealing, inner cone decompression block (12) is also gradually near the inner wall surface also extremely sealing of outer cone caulking gum (10), and outer cone caulking gum (10) and inner cone decompression block (12) mutually extrude and reach inside and outside complementation.After having sealed, the pressure by the elastic force of spring (13) and hydraulic pressure and in holding chamber, hydraulic pressure more high sealing performance is also better.
The above only have expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion, improvement and substitute, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (4)
1. a fire hydrant bottom sealing device, comprise regulator control system and sealing system, described regulator control system is positioned at the top of fire hydrant, this regulator control system is connected with the sealing system be located at bottom fire hydrant, it is characterized in that: described regulator control system comprises the drive nut being located at fire hydrant top, this drive nut lower end is connected with vertical upper valve rod, and the lower end of this upper valve rod is connected with lower valve rod by sleeve pipe, and described lower valve rod is located at the middle part of fire hydrant; The middle part of fire hydrant is provided with positioning plate, and described lower valve rod is connected with sealing system through positioning plate; Described sealing system comprises annular steelframe, and the fire hydrant inwall below this annular steelframe and aforementioned positioning plate posts and fixes, and the intermediate throughholes of this annular steelframe is provided with the sealed cover consistent with its internal diameter; The bottom surface retaining ring of described sealed cover is wound with outer cone caulking gum, and the inwall of the outer wall of outer cone caulking gum and described annular steelframe is fitted; The inner side of described outer cone caulking gum is provided with the inner cone of fitting with its inwall and reduces pressure block, the lower end of this inner cone decompression block by spring be fixedly installed in the filter screen of water intake bottom fire hydrant and be connected; Block is reduced pressure with spring until be connected with filter screen through sealing clamp, inner cone successively in the bottom of described lower valve rod.
2. a kind of fire hydrant bottom sealing device according to claim 1, is characterized in that: described upper valve rod is connected with described sleeve pipe by latch.
3. a kind of fire hydrant bottom sealing device according to claim 1, is characterized in that: be provided with damping spring between described sleeve pipe and lower valve rod.
4. a kind of fire hydrant bottom sealing device according to claim 1, is characterized in that: described sealed cover is fixedly connected with described outer cone caulking gum by the set screw vertically penetrated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420849700.3U CN204512475U (en) | 2014-12-30 | 2014-12-30 | A kind of fire hydrant bottom sealing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201420849700.3U CN204512475U (en) | 2014-12-30 | 2014-12-30 | A kind of fire hydrant bottom sealing device |
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CN204512475U true CN204512475U (en) | 2015-07-29 |
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CN201420849700.3U Expired - Fee Related CN204512475U (en) | 2014-12-30 | 2014-12-30 | A kind of fire hydrant bottom sealing device |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117028590A (en) * | 2023-10-09 | 2023-11-10 | 福建辰消科技有限公司 | Fire hydrant valve with high weather resistance |
-
2014
- 2014-12-30 CN CN201420849700.3U patent/CN204512475U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN117028590A (en) * | 2023-10-09 | 2023-11-10 | 福建辰消科技有限公司 | Fire hydrant valve with high weather resistance |
CN117028590B (en) * | 2023-10-09 | 2023-12-05 | 福建辰消科技有限公司 | Fire hydrant valve with high weather resistance |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20181230 |
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CF01 | Termination of patent right due to non-payment of annual fee |