CN101637638A - Non-return valve unit for fire fighting equipment and water supply pipe with the same for fire fighting equipment - Google Patents
Non-return valve unit for fire fighting equipment and water supply pipe with the same for fire fighting equipment Download PDFInfo
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- CN101637638A CN101637638A CN200910134990A CN200910134990A CN101637638A CN 101637638 A CN101637638 A CN 101637638A CN 200910134990 A CN200910134990 A CN 200910134990A CN 200910134990 A CN200910134990 A CN 200910134990A CN 101637638 A CN101637638 A CN 101637638A
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Abstract
The present invention provides a non-return valve unit for fire fighting equipment and water supply pipe with the same for fire fighting equipment. The aim of the invention is to provide the non-return valve unit which has the advantages of small size, light weight, excellent maintenance performance and suitability for the water supply pipe for fire fighting equipment. The composition of the non-return valve unit is as follows: the openings at two ends of the cylindrical water supply pipe are provided with flanges; an annular valve seat which projects to the central direction of the cylinder is provided at the inner circumferential surface of the water supply pipe; a central valve seat which divides the annular valve seat to two parts along the diameter of the annular valve seat is provided; therefore two semicircular paths are formed on the water supply path; the downstream side of the central valve seat is provided with a common central shaft which extends along the central valve seat; the common central shaft can rotatablely support each linear part of one pair of semicircular open and close valves; a force applying component is used so that two semicircular open and close valves commonly cling on to the annular valve seat and the central valve seat for forming the non-return valve which can close the two semicircular paths; and the upstream side and the downstream side of the non-return valve are respectively provided with a water discharge outlet with a penetration mode.
Description
Technical field
The present invention relates to a kind of fire-fighting equipment flow pipe device, for example in buildings such as high-rise mansion, it is medium with the flow pipe route way that is arranged at the fire hydrant in the building that it is arranged on the ground water delivery nozzle that is connected near building, be used for from water delivery nozzle the present invention relates to the fire-fighting equipment flow pipe device that is applicable to the non-return valve unit of this device and uses this non-return valve unit to fire hydrant put out a fire the sending water, prevent adverse current of water, draining etc.
Background technology
In the past, this fire-fighting equipment with the flow pipe device from preventing the needs of functions such as adverse current, sealing, draining, have a plurality of short tubes of non-return valve, sealing valve, draining valve and constitute by connection, this flow pipe device is arranged in the pipe arrangement route way of sending the water pipe arrangement that connects water delivery nozzle and mansion side, near in the underground concrete ground well of mansion.
The construction method of this flow pipe device proposes to have the non-return valve of preparation short tube, draining valve short tube, sealing valve single tube, it forms by in advance non-return valve, draining valve, sealing valve being contained in respectively in the short flow pipe, utilizes ring flange to connect these single tubes in above-mentioned concrete recess and constitutes and connect flow pipe device (patent documentation 1).
In addition, propose to have in single tube, to form non-return valve, sealing valve, in accommodating case, utilize the connector that has draining valve to connect these a plurality of single tubes, connect flow pipe device (patent documentation 2) thereby constitute.
Patent documentation 1: Japanese kokai publication hei 10-25775 communique
Patent documentation 2: Japanese kokai publication hei 11-226146 communique
But, there are the following problems for the device that patent documentation 1 is put down in writing: because the non-return valve single tube only has the function of non-return valve, need connect the special-purpose single tube of 2 draining valves in the both sides of non-return valve, also need to connect sealing valve single tube on a draining valve single tube therein, so increase coupling part, make all structure large-scaleizations of flow pipe simultaneously,, when carrying out construction operation, need more labour and time owing to need utilize ring flange to connect more single tube.
There are the following problems for the device that patent documentation 2 is put down in writing: because non-return valve has used the piston-type of the valve body that slides abreast with water (flow) direction, institute so that the non-return valve single tube from long on left and right directions and maximize, whole connection flow pipe device self is maximized, in addition, because connector is provided with discharge outlet, open and close handle that discharge outlet uses also be located at connector from one's body, so the switching operation of handle also can cause the endurance issues of connector.
The present invention makes in view of the above-mentioned problem of device in the past, its purpose is, provide a kind of can be small-sized light weight ground constitute, can improve the non-return valve unit for fire fighting of transaction capabilities of site operation and the fire-fighting equipment flow pipe device that uses this non-return valve unit for fire fighting simultaneously.
Summary of the invention
In order to achieve the above object, the non-return valve unit for fire fighting of the 1st technical scheme of the present invention, it is characterized in that, both ends open portion at the cylindric flow pipe of left and right sides opening is provided with ring flange, at the inner peripheral surface of this flow pipe towards the outstanding ring-type valve seat that is provided with of cylinder center's direction, be provided with simultaneously along the diameter of this ring-type valve seat central valve seat this ring-type valve seat left and right sides linearity divided into two parts, form 2 semicircle paths on the water route sending of above-mentioned flow pipe thus, at the common center axle of the downstream of above-mentioned central valve seat setting along central valve seat, above-mentioned common center axle can support each inboard straight line portion of a pair of semicircle open and close valve rotationally, make above-mentioned two semicircle open and close valves be close to above-mentioned ring-type valve seat and central valve seat usually with force application part simultaneously, constitute the non-return valve that can seal above-mentioned two semicircle paths thus, and the primary side between the above-mentioned ring flange of above-mentioned non-return valve and upstream side send to run through on the water route discharge outlet is set, and the secondary side between the above-mentioned ring flange in non-return valve and downstream send to run through on the water route discharge outlet is set simultaneously.
By constituting non-return valve unit in this wise, can make the big or small miniaturization of non-return valve unit self, simultaneously can the primary side in non-return valve unit sending water route and secondary side to send be provided with draining valve respectively, can constitutes the non-return valve unit with drain function in extremely small-sized light weight ground on the water route.
The non-return valve unit for fire fighting of the 2nd technical scheme of the present invention, be according to the described non-return valve unit for fire fighting of above-mentioned the 1st technical scheme, it is characterized in that, on each discharge outlet that above-mentioned primary side send water route and secondary side to send water route, be connected with draining valve respectively.
By constituting in this wise, can constitute to very small-sized light weight the independent non-return valve unit of the drain function that also has primary side and secondary side.
The non-return valve unit for fire fighting of the 3rd technical scheme of the present invention, according to the above-mentioned the 1st or the 2nd described non-return valve unit for fire fighting of technical scheme, it is characterized in that, connecting on the ring flange of above-mentioned downstream under the state of sealing valve cell, when the open and close valve of above-mentioned semicircle open and close valve and above-mentioned sealing valve cell is all opened, make the spacing of end of two open and close valves very little.
By constituting in this wise, owing to making the spacing of above-mentioned semicircle open and close valve and above-mentioned open and close valve become the minimum spacing that is close, so can constitute the fire-fighting equipment flow pipe that the sealing valve cell is connected in the state of non-return valve unit extremely small-sizedly.
The fire-fighting equipment of the 4th technical scheme of the present invention flow pipe device, it has been to use the above-mentioned the 1st or the fire-fighting equipment flow pipe device of the described non-return valve unit for fire fighting of the 2nd technical scheme, it is characterized in that, form the recess of prescribed depth on ground, be embedded in flow pipe at this recess and accommodate case, relatively set primary side flow pipe and secondary side flow pipe in this relative side of accommodating case, above-mentioned non-return valve unit is connected in above-mentioned primary side flow pipe, connects above-mentioned secondary side flow pipe by the sealing valve cell in the downstream of this non-return valve unit.
By constituting in this wise, can realize that the coupling part of flow pipe is less, the easier fire-fighting equipment of construction flow pipe device.
The fire-fighting equipment of the 5th technical scheme of the present invention flow pipe device, it is to utilize the above-mentioned the 1st or the fire-fighting equipment flow pipe device of the 2nd described non-return valve unit for fire fighting, it is characterized in that, form the recess of prescribed depth on ground, be embedded in flow pipe at this recess and accommodate case, relatively set primary side flow pipe and secondary side flow pipe in this relative side of accommodating case, above-mentioned non-return valve unit is connected in above-mentioned primary side flow pipe, connects above-mentioned secondary side flow pipe by sealing valve cell and short and thick pipe in the downstream of this non-return valve unit.
By such formation, can realize that the coupling part of flow pipe is less, the easier fire-fighting equipment of construction flow pipe device.In addition, because the effect of short and thick pipe, can not make the vibration etc. of secondary side flow pipe be directly passed to the sealing valve cell.
Adopt the present invention, can make the big or small miniaturization of non-return valve unit self, simultaneously can the primary side in non-return valve unit sending water route and secondary side to send be provided with draining valve respectively, can constitutes the non-return valve unit that also has drain function in extremely small-sized light weight ground on the water route.
In addition, owing to the semicircle open and close valve of non-return valve unit and the spacing of the open and close valve of the sealing valve cell that is connected with this non-return valve unit are constituted minimum, so can constitute the fire-fighting equipment flow pipe that the sealing valve cell is connected in the state of non-return valve unit extremely small-sizedly.
In addition, because non-return valve unit of the present invention is used with flow pipe as fire-fighting equipment, can realize that the coupling part of flow pipe is less, the easier fire-fighting equipment of construction flow pipe device.
Description of drawings
Fig. 1 is the vertical view cutaway drawing of non-return valve unit of the present invention.
Fig. 2 is the side view cutaway drawing of non-return valve unit shown in Figure 1.
Fig. 3 is the sectional elevation of the secondary side of non-return valve unit shown in Figure 1.
Fig. 4 is the front view of the primary side of non-return valve unit shown in Figure 1.
Fig. 5 is the side view of non-return valve unit shown in Figure 1.
Fig. 6 is the stereogram of non-return valve unit shown in Figure 1.
Fig. 7 is to use the vertical view of the fire-fighting equipment of non-return valve unit shown in Figure 1 with the flow pipe device.
Fig. 8 is the front view of flow pipe device shown in Figure 7.
Fig. 9 is the side view of flow pipe device shown in Figure 7.
Figure 10 is the vertical view of other embodiments of flow pipe device shown in Figure 7.
Figure 11 is the side view of other embodiments of flow pipe device shown in Figure 7.
The specific embodiment
Fig. 1, Fig. 2 are the cutaway view of fire-fighting equipment of the present invention with the non-return valve unit of flow pipe, and Fig. 1 represents vertical view cutaway drawing, and Fig. 2 represents side view cutaway drawing.
In these figure, Reference numeral 1 is a non-return valve unit, this non-return valve unit 1 comprises that two ends, the left and right sides have the cylindrical body 1 ' of circular open portion (both ends open portion) 1a, 1a ' and circular peristome 1a, 1a ' go up circular ring flange 1b, the 1b ' that is provided with integratedly with above-mentioned cylindrical body 1 ' at two ends, the left and right sides, is formed with the water route R that send cylindraceous in the inside of this non-return valve unit.In addition, above-mentioned ring flange 1b, 1b ' are the ring flanges (12 hole H are with reference to Fig. 3 etc.) that is used for the JIS specification of flow pipe, and ring flange 18a, the 21a of the existing flow pipe 18,21 that is connected with this check pipe unit 1 etc. form same size (with reference to Fig. 9).
The inner peripheral surface 1 of the cylindrical body 1 ' of this non-return valve unit 1 " substantial middle portion on, the outstanding ring-type valve seat 2 that is formed with from inner peripheral surface towards the axle M of cylinder center direction (cylinder center's direction).This ring-type valve seat 2 has inclined plane 2a, this inclined plane 2a forms towards the cylindrical body central portion with the relative face (primary side send the water route R face of 1 side) of arrow A direction of expression water (flow) direction, and secondary side is formed with from minor diameter part 2b towards above-mentioned inner peripheral surface 1 " the valve seat 2c that forms of vertical plane.In addition, in this non-return valve unit 1, with the upstream side of ring-type valve seat 2 send water route to be called primary side to send water route R 1, the downstream of above-mentioned ring-type valve seat 2 send water route to be called secondary side to send water route R2.
Above-mentioned central shaft 6 can support 2 sealings disk 4a, the 4b of above-mentioned thin board type non-return valve 4 rotationally, position in some downstreams of the above-mentioned valve seat 2c of above-mentioned ring-type valve seat 2 makes above-mentioned central shaft 6 upper and lower end parts fixing by above-mentioned protuberance 5,5 ' supporting, and make the above-mentioned diameter line N of cylindrical body 1 ' and the central valve seat 3a in above-mentioned inboard parallel, thus above-mentioned central shaft 6 is fixed with upright state along the vertical direction.
Above-mentioned interference prevents that axle 7 is adjacent with above-mentioned central shaft 6 in the position in some downstreams of above-mentioned central shaft 6, and it is parallel with this central shaft 6, promptly along the diameter line N of above-mentioned cylindrical body 1 ', it is fixing to make above-mentioned interference prevent that axle 7 upper and lower end parts from similarly being supported by above-mentioned protuberance 5,5 ', fixes with upright state along the vertical direction thus.
Above-mentioned sealing disk 4a, 4b form semi-circular shape respectively, inboard straight line portion 4a ', 4b ' by central authorities are close to the central valve seat 3a in above-mentioned inboard respectively, and above-mentioned semi-circular portion (end) 4a ", 4b " be close to above-mentioned valve seat 2c, thereby make above-mentioned primary side send water route R 1 and secondary side to send water route R2 can stop to send water.
Top and the bottom at above-mentioned central shaft 6 can be with carrying cylinder 8a, 8b rotatably, be bonded with the plate face 4c (with reference to Fig. 3) of an above-mentioned sealing with the downstream of disk 4a from these carrying cylinders 8a, 8b towards radially extended support plate 8a ', 8b ', above-mentioned thus sealing can be supported by axle towards arrow B, C direction around above-mentioned central shaft 6 rotationally with disk 4a.
In addition, above-mentioned central shaft 6 with above-mentioned carrying cylinder 8a, 8b adjacent just below, can be with carrying cylinder 9a, 9b rotatably up and down, be bonded with the above-mentioned sealing plate face 4d (with reference to Fig. 3) with the downstream of disk 4b from these carrying cylinders 9a, 9b towards radially extended support plate 9a ', 9b ', above-mentioned thus sealing can be around above-mentioned central shaft 6 towards arrow B with disk 4b ', C ' direction supports by axle rotationally.
In addition, the spring 10b of bottom is connected to the downstream lateral plates 4d of above-mentioned another sealing with disk 4b with one end 10b ', in the sealing position, be that its inboard straight line portion 4b ' is close to central valve seat 3a in above-mentioned inboard and semi-circular portion 4b " be close on the position of above-mentioned valve seat 2c usual with certain active force towards arrow C ' direction applies active force to this sealing with disk 4b.
Thereby, above-mentioned sealing is positioned at the solid line position of Fig. 1 by the active force of above-mentioned spring 10a, 10b usually with disk 4a, 4b, seal above-mentioned 2 semicircle path Ra and Rb, make primary side send water route R 1 and secondary side to send water route R2 to stop to send the state of water thereby become.In addition, when the arrow A direction produces current, because the pressure of these current, above-mentioned sealing is opened, thereby is produced current from primary side to secondary side towards arrow B, B ' direction with the active force of disk 4a, 4b antagonistic spring 10a, 10b.
In addition, above-mentioned sealing send the current of water route R2 with disk 4a, 4b by sent water route R 1 by primary side towards secondary side, open to the two point chain-dotted line position of Fig. 1 with maximum opening, but support plate 8a ', the 8b ' of each disk 4a, 4b, 9a ', 9b ' are by preventing that with interference axle 7 butts are prevented from further rotating at this moment.
In addition, send water route R2 when primary side send water route R 1 to produce current from secondary side, perhaps send water route R 1 when secondary side send the impetus of the current of water route R2 to reduce from primary side, restoring force by above-mentioned current or above-mentioned spring 10a, 10b makes sealing rotate and return towards arrow C, C ' direction with disk 4a, 4b, makes primary side send water route R1 and secondary side to send water route R2 to stop to send water and brings into play function as the thin board type non-return valve.
Above-mentioned sealing is located at as upper/lower positions with disk 4a, 4b, under its maximum opening state (the two point chain-dotted line of Fig. 1), when using the maximum opening state (during standard-sized sheet) of disk (open and close valve) 13 in abutting connection with the sealing of the butterfly sealing valve cell 12 (representing with the two point chain-dotted line among Fig. 1) that is provided with (state of Fig. 1, Fig. 2), it is located at and is not interfered the position of this sealing with disk 13.Specifically, use under the full-gear of disk 13 at sealing, at the semi-circular portion 4a of sealing with disk 4a, 4b ", 4b " when all opening top ends (end) 4 ', 4 ' and the end of sealing with disk 13 of above-mentioned full-gear between produce minimum spacing (minimum spacing that is close) t, both are provided with on mutually noninterferes ground.In addition, spacing t can constitute for example about 10mm～20mm.
In Fig. 1, Reference numeral 12 has been to use the sealing valve cell of so-called butterfly valve, can use universal product.This sealing valve cell 12 constitutes by sealing is rotated towards arrow D, E direction with disk 13 and obtains different conditions, sealing rotates to horizontal level with disk 13 towards the arrow E direction, can obtain the release position that makes above-mentioned secondary side send water route R2 to be communicated with the downstream, above-mentioned sealing rotates to the upright position with disk 13 towards arrow D direction, can obtain the sealing state that send water route R2 and downstream to intercept water above-mentioned secondary side.
Above-mentioned sealing with the switching of disk 13 constitute with bevel gear etc. between the central shaft P of this disk 13 and open and close the rotating shaft 16 of handle 16 ' " between and utilize power transmission shaft 25 to connect, make the above-mentioned sealing can be by above-mentioned switching handle 16 ' driven opening at random with disk 13.
This sealing valve cell 12 by interior be equipped with above-mentioned sealing with the main body 12a of disk 13, from main body 12a towards horizontal direction outstanding handle installation portion 12b, open and close above-mentioned sealing and constitute with the handle 16 ' of disk 13.
Because the present invention is by constituting as described above, so when constructing at the scene, accommodate recess (recess) 19 and (, accommodate the flow pipes that 19 li of recesses embed the rectangular shape of configuration top and bottom opening at this flow pipe and accommodate case 20 at the underground flow pipe such as concrete ground well that is arranged with reference to Fig. 7～Fig. 9).At this moment,, exposed ground,, draining (fire extinguishing water) has been infiltrated naturally in underground so be paved with gravel 23 etc. because above-mentioned flow pipe is accommodated the lower surface opening of case 20.In addition, Reference numeral G is ground.
Below, the relative side of accommodating case 20 at above-mentioned flow pipe is at underground configuration primary side flow pipe 21 and the secondary side flow pipe 18 of running through, the primary side ring flange 1b of non-return valve unit 1 is connected in the ring flange 21a of primary side flow pipe 21, by bolt and nut S with above-mentioned two ring flange 21a, 1b combination.
In addition, by sealing valve cell 12 secondary side flow pipe 18 is connected in the secondary side of above-mentioned non-return valve unit 1, with the ring flange 18a of the ring flange 1b ' of the secondary side of above-mentioned non-return valve unit 1 and above-mentioned secondary side flow pipe 18 with the state of the above-mentioned sealing valve 12 of clamping between it by bolt and nut S combination.In addition, at this moment, optimum is that the discharge outlet of the draining valve 17 of non-return valve unit 1 is disposed towards ground side ground, and sealing valve handle 16 ' is installed (with reference to Fig. 8) up.
Then, accommodate the top opening of case 20 with the above-mentioned flow pipe of loam cake 22 sealings.Under the above-mentioned situation, usually, non-return valve unit 1 is made by manufacturing works, and sealing valve cell 12 is prepared by the constructor at scene, as Fig. 7～construct shown in Figure 9ly.
On the other hand, there are manufacturing works to deliver goods to constructor's situation with the state that non-return valve unit 1 is connected with sealing valve cell 12.At this moment, shown in Figure 10,11, manufacturing works will make to non-return valve unit 1 and sealing valve cell 12 and single tube (two ends have the short and thick pipe of ring flange 24a, 24b) 24, deliver goods to the constructor with the state that has connected short and thick pipe 24.At this moment, will become the ring flange 24b that on the ring flange 18a of secondary side flow pipe 18, connects the secondary side of short and thick pipe 24 at the scene.By like this with short and thick pipe 24 between sealing valve cell 12 and secondary flow pipe 18, can constitute and make the moving of the secondary side flow pipe that causes by earthquake and other reasons, vibration etc. can directly not be passed to sealing valve cell 12, can realize the stronger fire-fighting equipment of resistance to shock flow pipe device.
As mentioned above, according to the present invention, because non-return valve unit is made of so-called thin board type non-return valve, so can make the big or small miniaturization of non-return valve self, simultaneously can send water route and secondary side to send water route that discharge outlet (draining valve) is set respectively by the primary side in non-return valve unit, therefore can constitute the non-return valve unit that also has drain function in extremely small-sized light weight ground.
In addition, because the primary side and the secondary side of non-return valve unit have draining valve, so the independent non-return valve unit that also has drain function can be constituted on miniaturization ground very much.
In addition, because non-return valve unit is small-sized and in light weight,, can easily keep in repair on the ground so when the maintenance non-return valve unit, be easy to unload.
In addition, by the semicircle open and close valve (sealing disk) of non-return valve unit and the spacing of open and close valve (sealing disk) when all opening that be connected in the sealing valve cell of this non-return valve unit are constituted the minimum spacing that is close, the fire-fighting equipment that connects the state of sealing valve cell on non-return valve unit can be constituted with flow pipe extremely small-sizedly.
In addition, because non-return valve unit of the present invention is used with flow pipe as fire-fighting equipment, the coupling part of flow pipe is less, and non-return valve unit is small-sized and in light weight, so can realize the fire-fighting equipment flow pipe device of construction easily.
Particularly, when underground buried type, become and carry out installation exercise in narrow place, such fire-fighting equipment flow pipe device preferably as far as possible with small-sized in light weight and the coupling part is less, can be realized by small-sized and lightweight non-return valve unit of the present invention in each flow pipe unit.
In addition, fire-fighting equipment is made of non-return valve unit and sealing valve cell with the flow pipe device, the coupling part of ring flange is less, so can reduce as far as possible by changing leaking of the flow pipe self cause all the year round.
In addition, because contraction in length that can flow pipe is all and constituting so can constitute the concrete ground well or accommodate case lessly, also can constitute loam cake simultaneously small-sizedly small-sizedly.
The underground fire-fighting equipment flow pipe of burying underground, cover oversize vehicles such as also can carrying truck sometimes thereon, the needs imagination is loaded with the situation of heavier load and designs, according to non-return valve unit of the present invention, the miniaturization as much as possible of flow pipe device can be able to be realized the fire-fighting equipment flow pipe device of design easily.
Non-return valve unit of the present invention can be as the fire-fighting equipment of various buildings such as high-rise mansion with the extensive use of flow pipe device.
Claims (5)
1. a non-return valve unit for fire fighting is characterized in that,
Both ends open portion at the cylindric flow pipe of left and right sides opening is provided with ring flange;
At the inner peripheral surface of this flow pipe towards the outstanding ring-type valve seat that is provided with of cylinder center's direction, be provided with simultaneously along the diameter of this ring-type valve seat central valve seat, thus at 2 the semicircle paths of shape on the water route that send of above-mentioned flow pipe this ring-type valve seat left and right sides linearity divided into two parts;
At the common center axle of the downstream of above-mentioned central valve seat setting along central valve seat, above-mentioned common center axle can support each inboard straight line portion of a pair of semicircle open and close valve rotationally, utilize force application part to make above-mentioned two semicircle open and close valves be close to above-mentioned ring-type valve seat and central valve seat usually simultaneously, constitute the non-return valve that can seal above-mentioned two semicircle paths thus;
And the primary side between the above-mentioned ring flange of above-mentioned non-return valve and upstream side send to run through on the water route discharge outlet is set, and the secondary side between the above-mentioned ring flange in non-return valve and downstream send to run through on the water route discharge outlet is set simultaneously.
2. non-return valve unit for fire fighting according to claim 1 is characterized in that,
On each discharge outlet that above-mentioned primary side send water route and secondary side to send water route, be connected with draining valve respectively.
3. non-return valve unit for fire fighting according to claim 1 and 2 is characterized in that,
Connecting on the ring flange of above-mentioned downstream under the state of sealing valve cell, when the open and close valve of above-mentioned semicircle open and close valve and above-mentioned sealing valve cell is all opened, making the spacing of end of two open and close valves very little.
4. fire-fighting equipment flow pipe device, it has used claim 1 or 2 described non-return valve unit for fire fighting, it is characterized in that,
Form the recess of prescribed depth on ground, be embedded in flow pipe at this recess and accommodate case, relatively set primary side flow pipe and secondary side flow pipe in this relative side of accommodating case;
Above-mentioned non-return valve unit is connected in above-mentioned primary side flow pipe, connects above-mentioned secondary side flow pipe by the sealing valve cell in the downstream of this non-return valve unit.
5. fire-fighting equipment flow pipe device, it uses claim 1 or 2 described non-return valve unit for fire fighting, it is characterized in that,
Form the recess of prescribed depth on ground, be embedded in flow pipe at this recess and accommodate case, relatively set primary side flow pipe and secondary side flow pipe in this relative side of accommodating case, above-mentioned non-return valve unit is connected in above-mentioned primary side flow pipe, connects above-mentioned secondary side flow pipe by sealing valve cell and short and thick pipe in the downstream of this non-return valve unit.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008196192 | 2008-07-30 | ||
| JP2008-196192 | 2008-07-30 | ||
| JP2008196192 | 2008-07-30 | ||
| JP2009029874A JP4603083B2 (en) | 2008-07-30 | 2009-02-12 | Check valve unit for fire fighting equipment and water pipe device for fire fighting equipment using the same |
| JP2009029874 | 2009-02-12 | ||
| JP2009-029874 | 2009-02-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101637638A true CN101637638A (en) | 2010-02-03 |
| CN101637638B CN101637638B (en) | 2012-08-29 |
Family
ID=41612937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101349907A Expired - Fee Related CN101637638B (en) | 2008-07-30 | 2009-04-20 | Non-return valve unit for fire fighting equipment and water supply pipe with the same for fire fighting equipment |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4603083B2 (en) |
| CN (1) | CN101637638B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102135655B1 (en) * | 2019-03-14 | 2020-07-20 | 주식회사 비엠티 | Connecting module having separating device in emergency situations |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067782U (en) * | 1990-02-17 | 1990-12-19 | 胡德英 | Butt-clamping rotation one-way valve |
| CN2071735U (en) * | 1990-06-09 | 1991-02-20 | 吕金超 | Butterfly non-return valve |
| JPH0481000U (en) * | 1990-11-27 | 1992-07-14 | ||
| JP3007045B2 (en) * | 1996-07-09 | 2000-02-07 | 株式会社北浦製作所 | Consolidated water pipe facility |
| JP3254182B2 (en) * | 1998-02-12 | 2002-02-04 | 株式会社北浦製作所 | Consolidated water pipe facility |
| JP3560948B2 (en) * | 2001-11-14 | 2004-09-02 | 勝広 宮本 | Paddle type running water detector for fire extinguishing equipment |
| JP2005147214A (en) * | 2003-11-13 | 2005-06-09 | Yokoi Seisakusho:Kk | Connection water pipe valve with check valve function |
-
2009
- 2009-02-12 JP JP2009029874A patent/JP4603083B2/en active Active
- 2009-04-20 CN CN2009101349907A patent/CN101637638B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010053681A (en) | 2010-03-11 |
| JP4603083B2 (en) | 2010-12-22 |
| CN101637638B (en) | 2012-08-29 |
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