CN102921135A - Pressure adjustment and stabilization type indoor hydrant - Google Patents
Pressure adjustment and stabilization type indoor hydrant Download PDFInfo
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- CN102921135A CN102921135A CN2012101795844A CN201210179584A CN102921135A CN 102921135 A CN102921135 A CN 102921135A CN 2012101795844 A CN2012101795844 A CN 2012101795844A CN 201210179584 A CN201210179584 A CN 201210179584A CN 102921135 A CN102921135 A CN 102921135A
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Abstract
The present invention provides a pressure adjustment and stabilization type indoor hydrant, which comprises a valve body, a valve head, a valve rod and a pressure stabilization member, wherein the valve rod sequentially penetrates through the valve head, the valve body and the pressure stabilization member, the valve head comprises a valve cover and a valve cover sleeve coaxially arranged on the inner wall of the valve cover, the valve cover and the valve cover sleeve are respectively provided with a through structure, the outer side of the valve cover is provided with a pressure gauge hole, the pressure gauge hole is provided with a pressure gauge, the valve cover sleeve is provided with a valve cover sleeve through hole communicated with the pressure gauge hole, the valve rod sequentially comprises a first rod portion, a sealing groove member and a second rod portion from top to bottom, the second rod portion is a hollow rod portion, the outer diameter of a non-recessed position of the sealing groove member is matched with the inner diameter of the valve cover and the valve cover sleeve, and is larger than the outer diameter of the hollow rod portion, a recessed position of the sealing groove member is provided with a groove through hole, and one hollow rod portion end penetrating out of the pressure stabilization member is connected with a fixation member. With the present invention, tests and displays of static state water pressure and/or dynamic state water pressure can be achieved, maintenance and use convenience can be improved, and maintenance cost can be reduced.
Description
Technical field
The present invention relates to the fire-fighting equipment technical field, particularly relate to a kind of voltage-regulation voltage-stabilization type indoor fire hydrant.
Background technology
Indoor fire hydrant be pipe network in house to delivery of water, be with valvular interface, can be used as the indoor fixedly fire fighting devices such as factory, warehouse, skyscraper, public building, boats and ships, usually be installed in the fire hydrant box, support the use with equipment such as fire hose and hydraulic giants.
Indoor fire hydrant does not need to use as a rule, and uses when breaking out of fire.In use, the delivery port of indoor fire hydrant connects an end of fire hose, and the other end of fire hose connects fire-fighting lance, and the hand-held fire-fighting lance of fire fighter is aimed at burning things which may cause a fire disaster with water, burning things which may cause a fire disaster is put out.If in the scene of fire, not water outlet of indoor fire hydrant, perhaps, the water outlet pressure of indoor fire hydrant is too little, then can miss the best opportunity of fire suppression, causes irretrievable loss; If the water outlet pressure of indoor fire hydrant is too large, will form very strong recoil strength to the fire fighter of hand-held fire-fighting lance, there is very large potential safety hazard during the fire fighter one man operation, can operate therefore usually need many people to cooperate.
Because fire has sudden and urgent usually, in order to guarantee that indoor fire hydrant can normally use in the scene of fire, need to guarantee constantly that indoor fire hydrant has the certain hydraulic pressure of maintenance between water and water inlet and the delivery port, therefore need to carry out periodic maintenance to indoor fire hydrant.Prior art safeguards indoor fire hydrant, and whether normally regularly open valve gap inspection has water in fastening, and detects advancing/delivery port pressure inside and outside the bolt by external manometric mode.The prior art inconvenience safeguards that indoor fire hydrant and maintenance cost are high.
Summary of the invention
The invention provides a kind of voltage-regulation voltage-stabilization type indoor fire hydrant, the convenience of safeguarding and using in order to improve indoor fire hydrant reduces maintenance cost.
The invention provides a kind of voltage-regulation voltage-stabilization type indoor fire hydrant, comprise valve body, also comprise:
Valve head, valve rod and voltage stabilizing part, described valve rod run through described valve head, described valve body and described voltage stabilizing part successively;
Described valve head comprises valve gap and the coaxial valve gap cover that is arranged on described valve gap inwall, logical structure during described valve gap and described valve gap cover have respectively; The outside of described valve gap offers the Pressure gauge hole, and described Pressure gauge is provided with Pressure gauge on the hole, and described valve gap puts and offers the valve gap cover through hole that is communicated with described Pressure gauge hole, with mineralization pressure table water channel between described valve gap cover through hole and described Pressure gauge hole;
Described valve rod comprises the first bar section, sealed groove spare and the second bar section from top to bottom, and described the second bar section is rod blank; The internal diameter coupling of the external diameter at the non-depression position of described sealed groove spare and described valve gap and described valve gap cover and greater than the external diameter of described rod blank; The depression position of described sealed groove spare offers the groove through hole, with inner to forming matrix valve rod water channel the described groove through hole from described rod blank;
The end that described rod blank passes described voltage stabilizing part connects a fixture.
The static hydraulic pressure of water inlet of valve body and/or the dynamic water-pressure of delivery port can be tested and show to voltage-regulation voltage-stabilization type indoor fire hydrant provided by the invention.On the one hand, operating personnel can judge very easily indoor fire hydrant according to Pressure gauge demonstration hydraulic pressure value and whether be in normal work shape body, as when indoor fire hydrant does not use, need not to open key inside, whether can determine easily associated pipe by manometric hydraulic pressure has water and/or water outlet pressure whether to meet pre-provisioning request, determine whether accordingly to carry out associated maintenance, improved the convenience of safeguarding and using and reduced maintenance cost.On the other hand, operating personnel are in the process of using indoor fire hydrant, can can monitor according to the force value that Pressure gauge shows when reconciling the valve body lifting height, water outlet pressure is too high makes troubles and such as the potential safety hazard under the situations such as one man operation to operating personnel's operation to reduce.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the optional cross-sectional view of voltage-regulation voltage-stabilization type indoor fire hydrant provided by the invention;
Fig. 2 is the optional perspective view of voltage-regulation voltage-stabilization type indoor fire hydrant provided by the invention;
Fig. 3 is the optional cross-sectional view of valve head provided by the invention;
Fig. 4 is the optional cross-sectional view of valve rod provided by the invention;
Fig. 5 is the optional cross-sectional view of voltage stabilizing part provided by the invention;
Fig. 6 is the optional structural representation of impeller provided by the invention;
Fig. 7 is the optional cross-sectional view of the rotatable voltage-regulation voltage-stabilization type of delivery port provided by the invention indoor fire hydrant;
Fig. 8 is the optional cross-sectional view of the rotatable voltage-regulation voltage-stabilization type of integral body provided by the invention indoor fire hydrant.
Description of reference numerals:
The 1-valve rod; 2-valve rod screw; The 3-valve gap; The 4-handwheel;
5-sealed groove spare; 6-valve gap cover; 7-matrix valve rod water channel;
The 8-Pressure gauge; 9-static pressure test water channel; 10-Pressure gauge water channel;
The 11-key; The 12-fixed interface; The 13-intercepter plate; The 14-sealing gasket;
The 15-mechanical sealing member; The 16-fixed screw; The 17-impeller; The 18-base;
19-the first steel ball; 20-the first O-ring seal; 101-solid hopkinson bar section; The 102-rod blank;
1011-the first threaded portion; 1012-the second threaded portion; 501-groove through hole;
1021-rod blank screw thread; 131-the first cylinder; The 132-end face that dams; 133-the second cylinder;
The 1701-cutting edge; 601-valve gap cover through hole; 801-Pressure gauge hole;
301-valve gap the first threaded portion; 302-valve gap the second threaded portion.
The specific embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not paying the every other embodiment that obtains under the creative work prerequisite.
Fig. 1 is the optional cross-sectional view of voltage-regulation voltage-stabilization type indoor fire hydrant provided by the invention, and Fig. 2 is the optional perspective view of voltage-regulation voltage-stabilization type indoor fire hydrant provided by the invention.As depicted in figs. 1 and 2, the voltage-regulation voltage-stabilization type indoor fire hydrant that the present embodiment provides comprises: valve body, valve head, valve rod 1 and voltage stabilizing part, valve rod 1 run through valve head, valve body and voltage stabilizing part successively.
Valve body can comprise: key 11, be used for the base 18 that is connected with inlet pipeline and the fixed interface 12 that is connected being connected with delivery hose.The top of key 11, bottom and a side be opening respectively, and base 18 is connected with the opening part of key 11 bottoms, and fixed interface 12 is connected with the lateral opening place of key 11.
Valve head can comprise: valve gap 3 and the coaxial valve gap cover 6 that is arranged on valve gap 3 inwalls, logical structure during valve gap 3 and valve gap cover 6 have respectively.As shown in Figure 3, the outside of valve gap 3 offers Pressure gauge hole 801, be provided with Pressure gauge 8 on the Pressure gauge hole 801, offer the valve gap cover through hole 601 that is communicated with Pressure gauge hole 801 on the valve gap cover 6, with mineralization pressure table water channel 10 between valve gap cover through hole 601 and Pressure gauge hole 801.Pressure gauge 8 can be but is not limited to dial type Pressure gauge or digital pressure gauge etc.Valve gap cover through hole 601 can be lower than Pressure gauge hole 801, and perhaps, valve gap cover through hole 601 can be concordant with Pressure gauge hole 801 etc.
The end that rod blank 102 passes the voltage stabilizing part connects a fixture.
Be provided with Pressure gauge 8 on the valve head of the voltage-regulation voltage-stabilization type indoor fire hydrant that the present embodiment provides, the groove position of the sealed groove spare of valve rod 5 offers groove through hole 501, and the rod blank 101 of groove through hole 501 and valve rod forms matrix valve rod water channel 7.In the process of valve rod 1 oscilaltion:
(1) when docks with valve gap cover through hole 601 at the depression position that valve rod 1 is in sealed groove spare 5, namely when valve rod 1 is in the water inlet closed condition, matrix valve rod water channel 7 and Pressure gauge water channel 10 are communicated with, form static pressure test water channel 9, the hydraulic pressure of Pressure gauge 8 tests and demonstration static pressure test water channel 9, this moment, the hydraulic pressure of Pressure gauge 8 demonstrations was indoor fire hydrant water inlet hydraulic pressure, was also referred to as static hydraulic pressure.
(2) when dock with valve gap cover through hole 601 at the non-depression position that valve rod 1 rises to sealed groove spare 5, because the external diameter at the non-depression position of sealed groove spare 5 is respectively greater than the external diameter of sunk part and the external diameter of rod blank, therefore, matrix valve rod water channel 7 and 10 cut-offs of Pressure gauge water channel, and the key internal cavities is not communicated with Pressure gauge water channel 10 yet, at this moment, the hydraulic pressure of Pressure gauge 8 tests is 0, and namely Pressure gauge 8 makes zero.
When the outer surface that (3) continues to rise to rod blank 102 when valve rod 1 docks with valve gap cover through hole 601, because the external diameter of rod blank 102 is less than the external diameter at the non-depression position of sealed groove spare 5, the key internal cavities is communicated with Pressure gauge water channel 10, form a dynamically pressure testing water channel, the hydraulic pressure of Pressure gauge 8 tests and demonstration dynamically pressure testing water channel, this moment, the hydraulic pressure of Pressure gauge 8 demonstrations was indoor fire hydrant delivery port hydraulic pressure, was also referred to as dynamic water-pressure.The lifting height of valve rod 1 is different, and the dynamic water-pressure that Pressure gauge 8 shows is different, and 1 liter of valve rod must be higher usually, and the dynamic water-pressure that Pressure gauge 8 shows is larger.
(4) when dock with valve gap cover through hole 601 at the non-depression position that valve rod drops to sealed groove spare 5, because the external diameter at the non-depression position of sealed groove spare 5 is respectively greater than the external diameter of sunk part and the external diameter of rod blank, therefore, matrix valve rod water channel 7 and 10 cut-offs of Pressure gauge water channel, 10 cut-offs of matrix valve rod water channel 7 and Pressure gauge water channel, and the key internal cavities is not communicated with Pressure gauge water channel 10 yet, at this moment, the hydraulic pressure of Pressure gauge 8 tests is 0, and namely Pressure gauge 8 makes zero.
(5) when dock with valve gap cover through hole 601 at the depression position that valve rod continues to drop to sealed groove spare 5, valve rod 1 water inlet is closed, matrix valve rod water channel 7 and Pressure gauge water channel 10 are communicated with, form static pressure test water channel 9, the hydraulic pressure of Pressure gauge 8 tests and demonstration static pressure test water channel 9, this moment, the hydraulic pressure of Pressure gauge 8 demonstrations was indoor fire hydrant water inlet hydraulic pressure, was also referred to as static hydraulic pressure.
This shows, the static hydraulic pressure of water inlet of valve body and/or the dynamic water-pressure of delivery port can be tested and show to the voltage-regulation voltage-stabilization type indoor fire hydrant that the present embodiment provides.On the one hand, operating personnel can judge very easily indoor fire hydrant according to Pressure gauge demonstration hydraulic pressure value and whether be in normal work shape body, as when indoor fire hydrant does not use, need not to open key inside, whether can determine easily associated pipe by manometric hydraulic pressure has water and/or influent pressure whether to meet pre-provisioning request, determine whether accordingly to carry out associated maintenance, improved the convenience of safeguarding and using and reduced maintenance cost.On the other hand, operating personnel are in the process of using indoor fire hydrant, can can monitor according to the force value that Pressure gauge shows when reconciling the valve body lifting height, water outlet pressure is too high makes troubles and such as the potential safety hazard under the situations such as one man operation to operating personnel's operation to reduce.
This fire hydrant is not only seen the just undesired but also different place of fire-fighting equipment operation, different floor, different height, different pressure, all can be used, hydraulic pressure low unblocked, can regulate the best hydraulic pressure of fire extinguishing when hydraulic pressure is high and put out a fire.
This fire hydrant is not owing to arranging decompressor, therefore crosses when low when fire fighting hydraulic pressure, and the water outlet pressure loss of valve is very little, even does not lose; When fire fighting hydraulic pressure is too high, can water outlet pressure be controlled in the safe water outlet pressure scope by pressure regulation.For example: when operating personnel when using indoor fire hydrant, if during fire fighting hydraulic pressure excessively low (such as hydraulic pressure less than 0.25MPa), fire hydrant can be opened fully, the pressure loss that produces because of flow resistance is no more than 0.02MPa, farthest guarantee water outlet pressure, improve fire-fighting efficiency, protection people's personal safety and property safety; If during fire fighting hydraulic pressure too high (such as hydraulic pressure greater than 0.35MPa), operating personnel's Open valve slowly then, after observation Pressure gauge registration is made zero by static intake pressure value, Pressure gauge registration (being dynamic delivery port force value this moment) raises gradually, adjust dynamic delivery port pressure in safe water outlet pressure scope (as in the 0.25MPa ~ 0.35MPa), to reduce the too high damage that operating personnel are brought personal injury and greatly reduce fire fighting device (such as fire hose) of water outlet pressure.
On the basis of technique scheme, in order further to improve the effect of voltage stabilizing, optional, as shown in Figure 5, the voltage stabilizing part comprises: the intercepter plate 13 of coaxial flexible connection and impeller 17, the maximum outside diameter of intercepter plate 13 are provided with sealing gasket 14 greater than the external diameter of impeller 17 between intercepter plate 13 and the impeller 17.Intercepter plate 13 can comprise successively the first cylinder 131 of connecting, end face 132 and the second cylinder 133 dam; Dam the external diameter of end face 132 respectively greater than the external diameter of the first cylinder 131 and the external diameter of the second cylinder 133, the external diameter of the external diameter of the first cylinder 131 and rod blank 102 coupling and less than the external diameter of the second cylinder 133, impeller 17 is set on the second cylinder 133.As shown in Figure 6, the outer surface of impeller 17 offers a plurality of cutting edges 1701, and the quantity of cutting edge 1701 can be but is not limited to 6, and each cutting edge is evenly distributed on the outer surface of impeller 17, and each cutting edge 1701 to offer direction opposite with the ascent direction of solid hopkinson bar section 101.For example: solid hopkinson bar section 101 is formed with the first threaded portion with the position of valve head coupling, as shown in Figure 4; Each cutting edge 1701 to offer direction opposite with the screw thread ascent direction of the first threaded portion 1701 of solid hopkinson bar section 101.Particularly, if the screw thread ascent direction of the first threaded portion 1701 is counterclockwise, then the direction of offering of each cutting edge 1701 is clockwise direction; Vice versa.
The mechanism that processing like this can improve the indoor fire hydrant voltage stabilizing is: when valve rod rose, the water inlet of valve body was opened, and because being subject to the water impact of inlet pipeline, valve rod and voltage stabilizing part integral body usually transfer can occur.If impeller 17 outer surfaces are not offered cutting edge, impeller 17 is identical with the probability that is rotated counterclockwise clockwise.The present embodiment is because the outer surface of impeller 17 evenly offers a plurality of cutting edges, and each cutting edge to offer direction opposite with the ascent direction of valve rod, therefore, when the outer surface of impeller 17 is subject to the impact of ascending current, each cutting edge can well be restricted to the direction of rotation of impeller opposite with the valve rod ascent direction, thereby apply reaction force with the transfer of valve rod current to valve rod, can suppress the transfer of valve rod by this reaction force, so that valve rod keeps stablizing as far as possible, valve rod can remain on the stable height thus, and then so that the hydraulic pressure of delivery port keeps stable, reach the purpose of voltage stabilizing.
Optionally, impeller 17 is connected with the second cylinder 133 screw mandrels, so that impeller increases the fastening force of itself and the second cylinder 133 in rotary course, better suppresses thus 133 rotations of the second cylinder.
The convenience that is connected with valve body in order to improve valve gap and valve rod, optionally, the top of valve gap 3 is provided with valve gap first threaded portion 301 of mating with the first threaded portion 1011 of solid hopkinson bar section 101, and the bottom of described valve gap is provided with valve gap second threaded portion 302 of mating with the top of valve body.Optionally, the first threaded portion 1011 of solid hopkinson bar section 101 can be external screw thread, and valve gap the first threaded portion 301 can be the internal thread with the first threaded portion 1011 couplings; The top of valve body is formed with internal thread such as the top of key 11, and valve gap the second threaded portion 302 is the external screw thread of the internal thread coupling that forms with key 11 tops.
The convenience that is connected with fixture in order to improve rod blank, optionally, the end that rod blank 102 is passed the voltage stabilizing part is formed with rod blank screw thread 1021, as shown in Figure 1, fixture can be but is not limited to fixed screw 16, and the end that rod blank 102 is passed the voltage stabilizing part is threaded with fixed screw 1021.
Inner in order to prevent that current from entering the voltage stabilizing part, improve the sealing of voltage stabilizing part, optional, such as fixed screw 1021 fixtures such as grade and dam and be provided with mechanical sealing member 15 between the end face 132, such as Fig. 1 and shown in Figure 5, mechanical sealing member 15 is set on the rod blank 102.Further, optional in order to reduce mechanical sealing member 15 and to dam the wearing and tearing of end face 132 in rotary course, mechanical sealing member 15 can be ceramic plane with the contact-making surface of the end face 132 that dams.
For the ease of the lifting of control valve rod, optional, an end that exposes valve head such as the first bar section such as 101 grades of solid hopkinson bar section is connected with handwheel 4, as shown in Figure 1, by rotation hand wheel, the liftable valve rod.The connected mode of solid hopkinson bar section 101 and handwheel 4 is for example: solid hopkinson bar section 101 forms the second threaded portion 1012 away from an end of sealed groove spare, handwheel sleeve 4 is located on the second threaded portion 1012, and the part that handwheel 4 is exposed in the second threaded portion 1012 is connected with valve rod screw 2.
For the relation between meticulous control valve rod lifting height and the water outlet pressure, can carry out appropriate design to the pitch such as the first threaded portion of the first bar section such as 101 grades of solid hopkinson bar section, suitably smaller as with the design of the pitch of the first threaded portion, like this when hand wheel rotating one circle, the valve rod lifting height is not too large, so that meticulous control water outlet pressure.Optionally, the pitch of the first threaded portion is (2mm-6mm) * 360 °.
The convenience of using in order further to improve above-mentioned arbitrary indoor fire hydrant also can be designed to rotational structure with indoor fire hydrant.For example: above-mentioned arbitrary indoor fire hydrant can be designed to the rotary-type indoor fire hydrant of delivery port; Perhaps, above-mentioned arbitrary indoor fire hydrant can be designed to the indoor fire hydrant of integral-rotation; Perhaps, above-mentioned arbitrary indoor fire hydrant can be designed to the water inlet rotary indoor fire hydrant, etc.
The indoor fire hydrant that above-mentioned delivery port is rotary-type, as shown in Figure 7, key 11 is connected with fixed interface 12 rotary types, such as key 11 and fixed interface 12 360 ° of rotations etc. can occur.Above-mentioned water inlet rotatable type indoor fire hydrant, key is connected with the base rotary type, such as key 11 and base 18 360 ° of rotations etc. can occur.Above-mentioned whole rotatable type indoor fire hydrant, as shown in Figure 8, key 11 and base 18 with fixed interface 12 respectively rotary types is connected, such as key 11 and fixed interface 12 360 ° of rotations, key 11 and bases 18 can occur can occur 360 ° and rotate etc.
Being rotatably connected between key and the base can connect by steel ball realizes.For example as shown in Figure 8: the junction of key 11 and base 18 evenly is provided with a plurality of the first steel balls 19, and key 11 is connected with base by a plurality of the first steel ball 19 rotary types connections.Being rotatably connected also between key and the fixed interface can realize by steel ball, for example: the junction of key 11 and fixed interface 12 evenly is provided with a plurality of the second steel balls, and key 11 is connected with fixed interface by a plurality of the second steel ball rotary types connection (not shown)s.
In order to improve the sealing of indoor fire-fighting water water inlet and/or delivery port, can be provided with O-ring seal between key and base or the fixed interface.For example: the junction of key 11 and base 18 also is provided with the first O-ring seal 20.And/or the junction of key 11 and fixed interface 12 also is provided with the second O-ring seal (not shown).
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, do not have the part that describes in detail among certain embodiment, can be referring to the associated description of other embodiment.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (18)
1. a voltage-regulation voltage-stabilization type indoor fire hydrant comprises valve body, it is characterized in that, also comprises:
Valve head, valve rod and voltage stabilizing part, described valve rod run through described valve head, described valve body and described voltage stabilizing part successively;
Described valve head comprises valve gap and the coaxial valve gap cover that is arranged on described valve gap inwall, logical structure during described valve gap and described valve gap cover have respectively; The outside of described valve gap offers the Pressure gauge hole, and described Pressure gauge is provided with Pressure gauge on the hole, and described valve gap puts and offers the valve gap cover through hole that is communicated with described Pressure gauge hole, with mineralization pressure table water channel between described valve gap cover through hole and described Pressure gauge hole;
Described valve rod comprises the first bar section, sealed groove spare and the second bar section from top to bottom, and described the second bar section is rod blank; The internal diameter coupling of the external diameter at the non-depression position of described sealed groove spare and described valve gap and described valve gap cover and greater than the external diameter of described rod blank; The depression position of described sealed groove spare offers the groove through hole, with inner to forming matrix valve rod water channel the described groove through hole from described rod blank;
The end that described rod blank passes described voltage stabilizing part connects a fixture.
2. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 1 is characterized in that, described voltage stabilizing part comprises:
The intercepter plate of coaxial flexible connection and impeller, the maximum outside diameter of described intercepter plate is greater than the external diameter of described impeller, be provided with sealing gasket between described intercepter plate and the described impeller, the outer surface of described impeller offers a plurality of cutting edges, each described cutting edge to offer direction opposite with the ascent direction of described the first bar section.
3. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 2 is characterized in that,
Described intercepter plate comprises successively the first cylinder of connecting, end face and the second cylinder dam; The external diameter of the described end face that dams is respectively greater than the external diameter of described the first cylinder and the external diameter of described the second cylinder, the external diameter of described the first cylinder and the external diameter of described rod blank coupling and less than the external diameter of described the second cylinder, described impeller set is located on described the second cylinder.
4. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 3 is characterized in that, described fixture and described damming are provided with mechanical sealing member between the end face, and described mechanical sealing member is set on the described rod blank.
5. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 4 is characterized in that, the contact-making surface of described mechanical sealing member and the described end face that dams is ceramic plane.
6. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 2 is characterized in that, described impeller is connected with described the second cylinder screw mandrel.
7. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 1 is characterized in that, the end that described valve head exposes in described the first bar section is connected with handwheel.
8. arbitrary described voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 1-7, it is characterized in that, the end that described rod blank is passed described voltage stabilizing part is formed with the rod blank screw thread, described fixture is fixed screw, and the end that described rod blank is passed described voltage stabilizing part is threaded with described fixed screw.
9. arbitrary described voltage-regulation voltage-stabilization type indoor fire hydrant is characterized in that according to claim 1-7, and described the first bar section is solid hopkinson bar section, and the position of described solid hopkinson bar section and described valve head coupling is formed with the first threaded portion.
10. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 9 is characterized in that, each described cutting edge to offer direction opposite with the screw thread ascent direction of the first threaded portion of described solid hopkinson bar section.
11. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 10 is characterized in that, the pitch of described the first threaded portion is (2mm-6mm) * 360 °.
12. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 9, it is characterized in that, described solid hopkinson bar section forms the second threaded portion away from an end of described sealed groove spare, described handwheel sleeve is located on described the second threaded portion, and the part that described handwheel is exposed in described the second threaded portion is connected with the valve rod screw.
13. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 9, it is characterized in that, the top of described valve gap is provided with valve gap the first threaded portion with described the first threaded portion coupling, and the bottom of described valve gap is provided with valve gap second threaded portion of mating with the top of described valve body.
14. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 9 is characterized in that, described valve gap cover through hole is lower than described Pressure gauge hole, and perhaps, described valve gap cover through hole is concordant with described Pressure gauge hole.
15. visual pressure indoor fire hydrant voltage-regulating and voltage-stabilizing device according to claim 9 is characterized in that described Pressure gauge is dial type Pressure gauge or digital pressure gauge.
16. arbitrary described voltage-regulation voltage-stabilization type indoor fire hydrant is characterized in that according to claim 1-7,
Described valve body comprises: key, be used for the base that is connected with inlet pipeline and the fixed interface that is connected being connected with fire hose;
Described key is connected with described base rotary type, and/or described key is connected with described fixed interface rotary type.
17. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 16 is characterized in that,
The junction of described key and described base evenly is provided with a plurality of the first steel balls, described key be connected base and connect by a plurality of described the first steel ball rotary types;
And/or the junction of described key and described fixed interface evenly is provided with a plurality of the second steel balls, described key be connected fixed interface and connect by a plurality of described the second steel ball rotary types.
18. voltage-regulation voltage-stabilization type indoor fire hydrant according to claim 16 is characterized in that,
The junction of described key and described base also is provided with the first O-ring seal;
And/or the junction of described key and described fixed interface also is provided with the second O-ring seal.
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| CN201210179584.4A CN102921135B (en) | 2012-06-01 | 2012-06-01 | Pressure adjustment and stabilization type indoor hydrant |
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| CN201210179584.4A CN102921135B (en) | 2012-06-01 | 2012-06-01 | Pressure adjustment and stabilization type indoor hydrant |
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| CN102921135B CN102921135B (en) | 2015-03-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102921134A (en) * | 2012-06-01 | 2013-02-13 | 江苏龙力神精工科技有限公司 | Pressure visualization indoor hydrant pressure adjustment and stabilization apparatus |
| CN103480113A (en) * | 2013-10-12 | 2014-01-01 | 江苏耀捷建设工程有限公司 | Fire hydrant |
| CN105498136A (en) * | 2015-12-21 | 2016-04-20 | 江苏龙力神精工科技有限公司 | Pressure stabilizing fire hydrant |
| CN106267668A (en) * | 2016-09-21 | 2017-01-04 | 江苏龙力神精工科技有限公司 | Voltage stabilizing fire hydrant |
| CN107386366A (en) * | 2017-08-01 | 2017-11-24 | 合肥市漫通科技有限公司 | A kind of fire hydrant of pressure-adjustable |
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| CN202637787U (en) * | 2012-06-01 | 2013-01-02 | 江苏龙力神精工科技有限公司 | Visual-pressure indoor fire hydrant pressure-regulating pressure-stabilizing device |
| CN202637788U (en) * | 2012-06-01 | 2013-01-02 | 江苏龙力神精工科技有限公司 | Pressure regulation and stabilization indoor fire hydrant |
| CN102921134A (en) * | 2012-06-01 | 2013-02-13 | 江苏龙力神精工科技有限公司 | Pressure visualization indoor hydrant pressure adjustment and stabilization apparatus |
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| JP2008151333A (en) * | 2006-11-21 | 2008-07-03 | Kitaura Seisakusho:Kk | Pressure reducing valve with water stopping function |
| CN102091392A (en) * | 2010-11-30 | 2011-06-15 | 江苏龙力神精工科技有限公司 | Spherical rapid hydraulic fire hydrant and working method thereof |
| CN102228734A (en) * | 2011-04-11 | 2011-11-02 | 江苏龙力神精工科技有限公司 | Automatic pressure reduction pressure stabilization type fast hydraulic indoor fire hydrant |
| CN202637787U (en) * | 2012-06-01 | 2013-01-02 | 江苏龙力神精工科技有限公司 | Visual-pressure indoor fire hydrant pressure-regulating pressure-stabilizing device |
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| CN102921134A (en) * | 2012-06-01 | 2013-02-13 | 江苏龙力神精工科技有限公司 | Pressure visualization indoor hydrant pressure adjustment and stabilization apparatus |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102921134A (en) * | 2012-06-01 | 2013-02-13 | 江苏龙力神精工科技有限公司 | Pressure visualization indoor hydrant pressure adjustment and stabilization apparatus |
| CN102921134B (en) * | 2012-06-01 | 2015-03-04 | 江苏龙力神精工科技有限公司 | Pressure visualization indoor hydrant pressure adjustment and stabilization apparatus |
| CN103480113A (en) * | 2013-10-12 | 2014-01-01 | 江苏耀捷建设工程有限公司 | Fire hydrant |
| CN105498136A (en) * | 2015-12-21 | 2016-04-20 | 江苏龙力神精工科技有限公司 | Pressure stabilizing fire hydrant |
| CN106267668A (en) * | 2016-09-21 | 2017-01-04 | 江苏龙力神精工科技有限公司 | Voltage stabilizing fire hydrant |
| CN107386366A (en) * | 2017-08-01 | 2017-11-24 | 合肥市漫通科技有限公司 | A kind of fire hydrant of pressure-adjustable |
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| Publication number | Publication date |
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| CN102921135B (en) | 2015-03-04 |
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