CN2388452Y

CN2388452Y - Signal output sluice valve

Info

Publication number: CN2388452Y
Application number: CN 99243633
Authority: CN
Inventors: 李长发; 魏忠信
Original assignee: Yinyan Kaipu Environmental Protection Engineering Tech Co Beijing
Current assignee: Yinyan Kaipu Environmental Protection Engineering Tech Co Beijing
Priority date: 1999-08-24
Filing date: 1999-08-24
Publication date: 2000-07-19
Anticipated expiration: 2009-08-24

Abstract

The utility model provides a signal-output sluice valve, comprising a standard sluice valve and a signal box, wherein, the signal box is provided with a screw rod inside; a lifting sleeve on which a rotation stopping structure is arranged is screwed on the screw rod; the sluice valve adopts a standard built-in-bar sluice valve; a driving gear is arranged on the valve bar; a driven gear which is arranged at the outer part of the signal box is meshed with the driving gear; the driven gear is sleeved with the exposed end of the screw rod; a contact wheel of a microswitch contacts against with a shape face of the lifting sleeve; the signal box is arranged at the outer side of a radial valve port on a valve body. The signal-output sluice valve can monitor the opening and the closing states of a valve, and has the advantages of good sealability, easy installation, simple structure, low cost and high safety.

Description

Signal output sluice valve

The utility model relates to a kind of Signal output sluice valve, the Signal output sluice valve in especially a kind of fire-fighting automatic sprinkling system.

At present, the general common manual valve that uses is as service valve in the fire-fighting automatic sprinkling system, when working, this service valve is in normally open all the time in system, but, because this valve does not does not open and close the output signal device of state, can't monitor the keying state of valve, and in actual use, service work often is easy to forget this valve is reopened after finishing, and this valve is difficult to again find by the mistake closing state, like this, in case the generation fire alarm, the fire-fighting automatic sprinkling system can't supply water, and cause it to work; In the patent No. is in the Chinese utility model patent of ZL93223318.X, a kind of Signal sluice valve is disclosed, form by standard Outside screw stem rising through handwheel type gate valve and additional signal device, wherein, drive nut lower end surface in the actuate valve stem lifting in the operation handwheel center portion that is positioned at the standard Outside screw stem rising through handwheel type gate valve installs driving gear additional, and with the signal box in driven gear engagement, driven gear and leading screw are connected as a single entity by pin, on leading screw top the lifting cover is housed, the upper end of lifting cover is provided with the spline nail, and spline nail left end stretches in vertical slotted eye of scaffold; Lifting cover both sides be respectively equipped with that two symmetries are installed and electric on carry out sensitive switch in parallel, its wheel trolley and lifting cover shape be in the face of claiming by touching, by the lifting cover promotion sensitive switch synchronous working of moving up and down.Use the sort signal gate valve, when the rotation handwheel makes the flashboard lifting opening/shutting valve of gate valve, lifting cover in the signal box also will be accordingly with the certain proportion synchronization lifting and promote sensitive switch output " leading to ", " breaking " electrical signal corresponding to the valve opening and closing position, utilize this signal can realize the keying state of remote acoustooptic alarm or monitoring valve, prevent that the mistake of valve from closing.But because the employing of this device is Outside screw stem rising through handwheel type gate valve, sealing is poor, and it is unreliable to be used on the fire product; And, adopting Outside screw stem rising through handwheel type gate valve, screw mandrel is overhanging, and shared height and space are bigger; In addition, the driving gear of telltale is screwed on the drive nut that is installed in valve, therefore, during installation, the drive nut of valve be pulled down, holes, is installed then, and technology is complicated, and is also not quick detachable during damage, brings inconvenience to use; In addition, adopt two sensitive switches, complex structure, cost height; Its wiring terminal exposes, and uses also dangerous.

The purpose of this utility model is to overcome above-mentioned defective, and a kind of Signal output sluice valve is provided, and can monitor the keying state of valve, prevents that the mistake of valve from closing; And good airproof performance, use reliable; Shared height and space are less; Mounting process is simple and convenient; Simultaneously simple in structure, cost is low; Safe in utilization.

To achieve these goals, the utility model provides a kind of Signal output sluice valve, comprise standard gate valve and signal box, be provided with a leading screw in this signal box, spiral shell is provided with a lifting cover on this leading screw, this lifting puts and is provided with spline structure, the standard gate valve is the standard inside screw non-rising stem type gate valve, one driving gear is set on the valve rod of this standard inside screw non-rising stem type gate valve, be meshed with this driving gear be arranged on signal box outside and with the driven gear of the revealed section fit of leading screw, the shape face of the wheel trolley of one sensitive switch and this lifting cover is mutually by touching, and the signal box is located on the valve body of standard inside screw non-rising stem type gate valve outside the radial valve port.

The utility model also can further comprise following technical characteristics: the shape face of lifting cover is corresponding with the keying stroke of standard inside screw non-rising stem type gate valve; The spline structure of lifting cover can be spline nail, and an end of this spline nail radially stretches into this lifting cover along the lifting cover, and the other end stretches in the longitudinal groove on the signal box box body madial wall; Driven gear is positioned at the top of signal box, and expose the upper end of leading screw, stretches out signal box cartridge upper surface and inserts the center hole of driven gear, and the sidewall that a pin passes this driven gear stretches into the sidewall of leading screw; Can the signal box be fixed on the scaffold of standard inside screw non-rising stem type gate valve by a fixed plate; The terminal of sensitive switch can be connected on the terminal board; The leading screw lower end is provided with lifting cover position-limit mechanism, this position-limit mechanism comprises a stop nut, and this stop nut is provided with outside thread, and matching with the tapped through hole of the lower end surface of signal box box body is connected, the upper end of this stop nut is provided with blind hole, and the lower end of leading screw is stretched in this blind hole.

Working principle of the present utility model and effect are as follows: when driving the valve rod rotation when rotation hand wheel, because driving gear is fixedly arranged on the valve rod, therefore driving driving gear rotates together, and the engagement of the driven gear of this driving gear and signal box, this driven gear is fixedlyed connected with the leading screw of signal box again, thereby driving leading screw rotates synchronously, the lifting that spiral shell is established on the leading screw of signal box puts and is provided with spline structure, the rotation of leading screw can not be rotated the lifting cover and can only be moved up and down, lifting puts down when mobile, its shape face promotes the wheel trolley of sensitive switch, by the electrical signal of the outside output of the terminal of sensitive switch corresponding to the valve opening and closing state, utilize this signal, can monitor the keying state of valve, prevent that the mistake of valve from closing.

Because what Signal output sluice valve of the present utility model adopted is the standard inside screw non-rising stem type gate valve, so good airproof performance, uses reliably, and reduced shared height and the space of valve greatly; In addition, set firmly driving gear on valve rod, during installation or removal, only need pull down the handwheel of valve, can easily driving gear be loaded onto or pull down, mounting process is simple, and be easy to use; Simultaneously, this Signal output sluice valve adopts single sensitive switch, and is simple in structure, and cost is low; The terminal of sensitive switch are received on the terminal board, made terminal all airtight, avoided owing to wiring terminal exposes the danger that causes, safe and reliable.

Below in conjunction with drawings and Examples the utility model is elaborated:

Fig. 1 is the plan view of Signal output sluice valve of the present utility model;

Fig. 2 is the side view of Signal output sluice valve of the present utility model;

Fig. 3 is the linkage structure schematic representation of signal box and standard inside screw non-rising stem type gate valve in the Signal output sluice valve of the present utility model;

Fig. 4 is the side view of the attachment portion of signal box and standard inside screw non-rising stem type gate valve in the Signal output sluice valve of the present utility model.

Referring to Fig. 1 and Fig. 3, a kind of Signal output sluice valve, comprise standard gate valve and signal box 10, be provided with a leading screw 3 in this signal box 10, spiral shell is provided with lifting cover 4 on this leading screw 3, this lifting cover 4 is provided with spline structure, this standard gate valve is a standard inside screw non-rising stem type gate valve 20, one driving gear 1 is set on the valve rod 21 of this standard inside screw non-rising stem type gate valve 20, be meshed with this driving gear 1 be arranged on signal box 10 outsides and with the driven gear 2 of the revealed section fit of leading screw 3, the shape face 41 of the wheel trolley 12 of one sensitive switch 11 and this lifting cover 4 is mutually by touching, and signal box 10 is located on the valve body of standard inside screw non-rising stem type gate valve 20 outside the radial valve port, as shown in Figure 3.

In the present embodiment, the shape face 41 of lifting cover 4 is corresponding with the keying stroke of standard inside screw non-rising stem type gate valve 20; The spline structure of lifting cover 4 is a spline nail 5, and an end of this spline nail 5 radially stretches into this lifting cover 4 along lifting cover 4, and the other end stretches in the longitudinal groove 13 on signal box 10 box bodys 6 madial walls, as shown in Figure 3.

In the present embodiment, as shown in Figure 3 and Figure 4, driven gear 2 is positioned at the top of signal box 10, and expose the upper end of leading screw 3, stretch out signal box 10 box bodys, 6 upper surfaces and insert the center hole of driven gear 2, the sidewall that a pin 14 passes this driven gear 2 stretches into the sidewall of leading screw 3.As shown in Figure 1 to Figure 3, a fixed plate 9 is fixed in signal box 10 on the scaffold of standard inside screw non-rising stem type gate valve 20; The terminal of sensitive switch 11 (common port, normally opened contact end and normally-closed contact end) are connected on the terminal board.

As shown in Figure 3, leading screw 3 lower ends can be provided with lifting and overlap 4 position-limit mechanisms, this position-limit mechanism comprises a stop nut 7, this stop nut 7 is provided with outside thread, match with the tapped through hole of the lower end surface of signal box 10 box bodys 6 and to be connected, the upper end of this stop nut 7 is provided with blind hole 15, and the lower end of leading screw 3 is stretched in this blind hole 15.

During use, when unlatching or throttle down, rotation hand wheel and drive valve rod 21 and rotate, because driving gear 1 is fixedly arranged on the valve rod 21, therefore driving driving gear 1 rotates together, and driven gear 2 engagements of this driving gear 1 and signal box 10, this driven gear 2 is fixedlyed connected with the leading screw 3 of signal box 10 again, thereby driving leading screw 3 rotates synchronously, on the lifting cover 4 that spiral shell on the leading screw 3 of signal box 10 is established, be provided with spline structure, the lifting cover can only be moved up and down and can not rotate, the rotation of leading screw 3 moves up and down lifting cover 4, that is to say, the rotation of handwheel is corresponding with moving up and down of lifting cover 4, when lifting cover 4 moved up and down, its shape face 41 promoted the wheel trolley 12 of sensitive switch 11, and shape face 41 is designed to and the corresponding shape in valve opening and closing position, by the electrical signal of the outside output of the terminal of sensitive switch 11 corresponding to the valve opening and closing state, utilize this signal, can monitor the keying state of valve, prevent that the mistake of valve from closing.

Because what Signal output sluice valve of the present utility model adopted is standard inside screw non-rising stem type gate valve 20, so good airproof performance, uses reliably, and reduced shared height and the space of valve greatly; In addition, set firmly driving gear 1 on valve rod 21, during installation or removal, only need pull down the handwheel of valve, can easily driving gear 1 be loaded onto or pull down, mounting process is simple, and be easy to use; Simultaneously, this Signal output sluice valve adopts single sensitive switch, and is simple in structure, and cost is low; The terminal of sensitive switch 11 are received on the terminal board, made terminal all airtight, avoided owing to wiring terminal exposes the danger that causes, safe and reliable.In sum, Signal output sluice valve of the present utility model can be monitored the keying state of valve, prevents that the mistake of valve from closing; And good airproof performance, use reliable; Shared height and space are less; Mounting process is simple and convenient; Simultaneously simple in structure, cost is low; Safe in utilization.

Claims

1, a kind of Signal output sluice valve, comprise standard gate valve and signal box, be provided with a leading screw in this signal box, spiral shell is provided with a lifting cover on this leading screw, this lifting puts and is provided with spline structure, it is characterized in that: described standard gate valve is the standard inside screw non-rising stem type gate valve, one driving gear is set on the valve rod of this standard inside screw non-rising stem type gate valve, be meshed with this driving gear be arranged on described signal box outside and with the driven gear of the exposed junction fit of described leading screw, the shape face of the wheel trolley of one sensitive switch and this lifting cover is mutually by touching, and described signal box is located on the valve body of described standard inside screw non-rising stem type gate valve outside the radial valve port.

2, Signal output sluice valve according to claim 1 is characterized in that: the shape face of described lifting cover is corresponding with the keying stroke of described standard inside screw non-rising stem type gate valve.

3, Signal output sluice valve according to claim 1, it is characterized in that: the spline structure of described lifting cover is a spline nail, one end of this spline nail radially stretches into this lifting cover along described lifting cover, and the other end stretches in the longitudinal groove on the described signal box box body madial wall.

4, Signal output sluice valve according to claim 1, it is characterized in that: described driven gear is positioned at the top of described signal box, expose the upper end of described leading screw, stretch out signal box cartridge upper surface and insert the center hole of described driven gear, the sidewall that a pin passes this driven gear stretches into the sidewall of described leading screw.

5, Signal output sluice valve according to claim 1 is characterized in that: a fixed plate is fixed in described signal box on the scaffold of described standard inside screw non-rising stem type gate valve.

6, Signal output sluice valve according to claim 1 is characterized in that: the terminal of described sensitive switch are connected on the terminal board.

7, according to any one described Signal output sluice valve in the claim 1 to 6, it is characterized in that: described leading screw lower end is provided with lifting cover position-limit mechanism.

8, Signal output sluice valve according to claim 7, it is characterized in that: described position-limit mechanism comprises a stop nut, this stop nut is provided with outside thread, match with the tapped through hole of the lower end surface of described signal box box body and to be connected, the upper end of this stop nut is provided with blind hole, and the lower end of described leading screw is stretched in this blind hole.