CN217951416U - Automatic closing valve for gas boiler blow-off pipe - Google Patents

Abstract

The utility model discloses an automatic shutoff valve for a gas boiler blow-off pipe, which comprises a disc plate, a box body, a first handle, a second handle, a valve rod, a first gear, a clockwork spring timer, a trigger structure, a motor, a second gear and a contact switch, wherein the valve rod, the first gear, the clockwork spring timer, the trigger structure, the motor, the second gear and the contact switch are arranged in the box body; the valve rod is rotationally arranged on the box body, one end of the valve rod penetrates through the side wall of the box body and is fixedly connected with the first handle, the other end of the valve rod penetrates through the side wall of the box body and is welded with the edge of the disc plate, the valve rod is arranged in parallel with the plate surface of the disc plate, and a first gear is fixedly sleeved on the valve rod; one end of a rotating shaft of the clockwork timer penetrates through the side wall of the box body to be fixedly connected with the second handle, and the other end of the rotating shaft of the clockwork timer is fixedly provided with a trigger structure; the motor is electrically connected with a contact switch, and the trigger structure is movably contacted with the contact switch; the output shaft of the motor is sleeved and fixed with a second gear, and the second gear is in meshing transmission connection with the first gear.

Description

Automatic closing valve for gas boiler blow-off pipe

The technical field is as follows:

the utility model relates to the technical field of valves, concretely relates to gas boiler diffuses tub automatic closing valve.

Background art:

before the gas boiler is started, a valve of a gas pipeline is opened, gas is fed into the gas pipeline firstly, and is required to be diffused through a boiler diffusing pipe so as to realize replacement of air in the gas pipeline; the specific operation process is as follows: the operating personnel opens the valve of gas pipeline, opens the valve of diffusing pipe simultaneously, and the gas is discharged from diffusing pipe, carries out the evacuation replacement with the inside air of gas pipeline, ensures that the gas that gets into the gas boiler aircraft nose can not form explosive mist. In the above-mentioned diffusion operation, because the valve of the diffusion pipe that uses at present is manual valve, can't close by oneself, often the operation personnel can appear after accomplishing the diffusion operation, forget the condition of closing the valve of diffusion pipe, also there is new staff because unfamiliar with the application method of diffusion pipe, does not know the condition that must close the valve of diffusion pipe, lead to the gas to discharge from diffusion pipe to the atmosphere for a long time, make a large amount of gas extravagant, and gas flowmeter reading greatly increased, finally lead to user's gas expense to increase suddenly, make to produce a lot of frictions between user and the gas company, arouse many unnecessary disputes.

The utility model has the following contents:

an object of the utility model is to provide a gas boiler diffuses tub automatic closing valve has solved in the operation process that diffuses, because manual operation error makes the valve of diffusing the pipe forget in time to close and lead to the extravagant problem of gas.

The utility model discloses by following technical scheme implement: the automatic shutoff valve of the gas boiler blow-off pipe comprises a disc plate, a box body, a first handle, a second handle, a valve rod, a first gear, a clockwork spring timer, a trigger structure, a motor, a second gear and a contact switch, wherein the valve rod, the first gear, the clockwork spring timer, the trigger structure, the motor, the second gear and the contact switch are arranged in the box body; the valve rod is rotatably arranged on the box body, one end of the valve rod penetrates through the side wall of the box body and is fixedly connected with the first handle, the other end of the valve rod penetrates through the side wall of the box body and is welded with the edge of the disc plate, the valve rod is arranged in parallel with the surface of the disc plate, and the first gear is fixedly sleeved on the valve rod; one end of a rotating shaft of the clockwork timer penetrates through the side wall of the box body to be fixedly connected with the second handle, and the other end of the rotating shaft of the clockwork timer is fixedly provided with the trigger structure; the motor is electrically connected with the contact switch, and the trigger structure is movably contacted with the contact switch; the output shaft of the motor is fixedly sleeved with the second gear, and the second gear is in meshed transmission connection with the first gear.

Preferably, the trigger structure includes a fixing plate, a spring and a roller, one end of the fixing plate is connected with the shaft of the roller through the spring, and the plate surface of the fixing plate is fixedly connected with one end of the rotating shaft of the clockwork spring timer.

Preferably, a first positioning block is fixed in the middle of the outer wall of the box body on the same side as the first handle, a first latch groove is formed in the first positioning block, and the first handle is movably arranged in the first latch groove; the lower part of the outer wall of the box body on the same side as the first handle is fixedly provided with a first limiting block, and the first handle is abutted against the first limiting block when rotated by 90 degrees clockwise through a first bolt groove.

Preferably, a second positioning block is fixed on the upper part of the outer wall of the box body on the same side as the second handle, a second pin slot is formed in the second positioning block, and the second handle is movably arranged in the second pin slot; and a second limiting block is fixed at the lower part of the outer wall of the box body at the same side of the second handle, and the second handle is abutted against the second limiting block when the second handle is clockwise rotated by 180 degrees through the second bolt groove.

The utility model has the advantages that: the utility model drives the disc plate to rotate by rotating the first handle, so that the diffusing pipe is connected for diffusing and emptying; an operator rotates the second handle clockwise to enable the rotating shaft of the clockwork spring timer to drive the trigger structure to rotate, so that the contact switch is closed, the motor is electrified, the output shaft of the motor drives the second gear to rotate, the second gear rotates to drive the first gear, the valve rod, the first handle and the disc plate to synchronously rotate anticlockwise, a diffusing pipe pipeline is in a closed state, and the diffusing and emptying operation is finished; when the pipe way of diffusing is closed, the energy that just releases through the clockwork spring makes trigger structure trigger contact switch, makes contact switch break off, and the circuit of motor cuts off, among the above-mentioned process, only need the manual work will the utility model discloses a first handle is twisted soon to first stopper department, the second handle is twisted soon to second stopper department, need not to rotate once more, just can make gas boiler diffuse pipe be in the closed condition after accomplishing the operation of diffusing automatically, avoid appearing because of the operating personnel is not familiar with the application method who diffuses the pipe or forget to close the valve that diffuses the pipe and lead to the gas to be discharged from diffusing the pipe to the day for a long time, avoided the gas extravagant, make user's gas flowmeter reading and user gas expense reduce by a wide margin to avoid producing the friction between user and the gas company.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partially enlarged view of a in fig. 1.

Fig. 3 is a schematic view of the use state of the disc plate of the present invention when closed.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is a schematic view of the usage status of the disc plate of the present invention when opened.

Fig. 6 is a bottom view of fig. 5.

Fig. 7 is a schematic diagram of the state of the trigger structure and the contact switch when the dish plate is closed.

Fig. 8 is a schematic diagram of the state of the trigger structure and the contact switch when the second handle is rotated clockwise by 90 degrees.

Fig. 9 is a schematic diagram of the state of the trigger structure and the contact switch when the second handle rotates clockwise by more than 90 degrees.

Fig. 10 is a schematic diagram of the state of the trigger structure and the contact switch when the second handle is rotated clockwise by 180 degrees.

The parts in the drawings are numbered as follows: dish board 1, box 2, first handle 3, second handle 4, valve rod 5, first gear 6, clockwork spring timer 7, trigger structure 8, fixed plate 8.1, spring 8.2, gyro wheel 8.3, motor 9, second gear 10, contact switch 11, first locating piece 12, first bolt groove 12.1, first stopper 13, second locating piece 14, second bolt groove 14.1, second stopper 15, diffuse pipe 16.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "front", "rear", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-10, the automatic shutoff valve for the bleeding pipe of the gas boiler comprises a disc plate 1, a box body 2, a first handle 3, a second handle 4, a valve rod 5 arranged in the box body 2, a first gear 6, a clockwork spring timer 7, a trigger structure 8, a motor 9, a second gear 10 and a contact switch 11; the disc plate 1 is rotatably installed inside a diffusing pipe 16 pipeline, the box body 2 is installed on one side of the diffusing pipe 16 pipeline, the valve rod 5 is rotatably arranged on the box body 2, one end of the valve rod 5 penetrates through the side wall of the box body 2 and is welded with the first handle 3, the other end of the valve rod 5 penetrates through the side wall of the box body 2 and is welded with the edge of the disc plate 1, the valve rod 5 is arranged in parallel with the plate surface of the disc plate 1, the first gear 6 is fixedly sleeved on the valve rod 5, the disc plate 1 is driven to rotate by rotating the valve rod 5 through rotating the first handle 3, the diffusing pipe 16 pipeline is communicated, and diffusing and emptying are carried out; one end of the rotating shaft of the clockwork spring timer 7 penetrates through the side wall of the box body 2 and is welded with the second handle 4, and the other end of the rotating shaft of the clockwork spring timer 7 is fixedly provided with a trigger structure 8. The clockwork spring timer 7 used in the utility model is the existing equipment, the specific structure is not described herein any more, the rotating shaft of the clockwork spring timer 7 can drive the clockwork spring to store energy, and the rotating shaft of the clockwork spring timer 7 can drive the trigger structure 8 to rotate by the clockwork spring releasing energy; the trigger structure 8 comprises a fixing plate 8.1, a spring 8.2 and a roller 8.3, one end of the fixing plate 8.1 is connected with a shaft of the roller 8.3 through the spring 8.2, the plate surface of the fixing plate 8.1 is fixedly connected with the other end of a rotating shaft of the clockwork spring timer 7, and the roller 8.3 is arranged to reduce the friction force between the trigger structure 8 and the contact switch 11, so that the trigger process is smoother; the cover is established and is fixed with second gear 10 on the output shaft of motor 9, and second gear 10 is connected with the transmission of first gear 6 meshing, and motor 9 electricity is connected with contact switch 11, and trigger structure 8 and contact switch 11 active contact, the utility model discloses a contact switch 11 that uses is current equipment, and concrete structure is no longer repeated here, makes the pivot of clockwork spring timer 7 drive trigger structure 8 rotatory through operation personnel clockwise rotation second handle 4, makes contact switch 11 closed, and the circular telegram of motor 9, the output shaft of motor 9 drive second gear 10 and rotate, and second gear 10 rotates and drives first gear 6, valve rod 5, first handle 3 and dish board 1 and rotate anticlockwise in step, makes the pipe 16 pipeline of diffusing in the closed condition, finishes the evacuation operation of diffusing; by adjusting the rotation speed of the motor 9, it can be realized that when the pipe of the diffusing pipe 16 is closed, the triggering structure 8 is just rotated to disconnect the contact switch 11 by the energy released by the spring, and the circuit of the motor 9 is cut off.

The utility model is characterized in that a first locating block 12 is fixed in the middle of the outer wall of the box body 2 at the same side with the first handle 3, a first bolt groove 12.1 is arranged on the first locating block 12, the first handle 3 is movably arranged in the first bolt groove 12.1, and the first handle 3 is fixed by inserting a fixing pin in the first bolt groove 12.1; a first limit block 13 is fixed on the lower part of the outer wall of the box body 2 on the same side of the first handle 3, when the first handle 3 is clockwise rotated by 90 degrees through the first bolt groove 12.1, the first handle is abutted against the first limit block 13, and the first handle 3 can be prevented from being excessively rotated through the first limit block 13. A second positioning block 14 is fixed on the upper part of the outer wall of the box body 2 at the same side as the second handle 4, a second bolt groove 14.1 is formed in the second positioning block 14, the second handle 4 is movably arranged in the second bolt groove 14.1, and the second handle 4 is fixed by inserting a fixing pin into the second bolt groove 14.1; a second stopper 15 is fixed to the lower portion of the outer wall of the case 2 on the same side as the second handle 4, and when the second handle 4 is rotated clockwise by 180 degrees by the second latch groove 14.1, the second handle 4 abuts against the second stopper 15, and the second handle 4 can be prevented from being rotated excessively by the second stopper 15.

Instructions for use: as shown in fig. 3 and 4, when the valve of the diffusing pipe 16 is in a closed state, the end of the first handle 3 is located in the first latch groove 12.1 and fixed by the fixing pin, and the end of the second handle 4 is located in the second latch groove 14.1 and fixed by the fixing pin; before the operation personnel start-up gas boiler, open the valve of gas pipeline, open the valve of diffusing pipe 16 simultaneously, the concrete operation of opening the valve of diffusing pipe 16 does: firstly, the fixing pins of the first handle 3 and the second handle 4 are pulled out, then the first handle 3 is rotated to a first limiting block 13 (the first handle 3 rotates 90 degrees clockwise), the first handle 3 drives the valve rod 5 and the disc plate 1 to rotate, the plate surface of the disc plate 1 is parallel to the pipeline direction of the diffusion pipe 16, and therefore the diffusion pipe 16 is communicated to conduct diffusion and evacuation; then, the second handle 4 is rotated clockwise, when the second handle is rotated to 90 degrees, the trigger structure 8 starts to trigger the contact switch 11, and in the continuous rotation process, the trigger structure 8 closes the contact switch 11, the circuit of the motor 9 is switched on, the output shaft of the motor 9 drives the second gear 10 to rotate, the second gear 10 rotates to drive the first gear 6, the valve rod 5, the first handle 3 and the dish plate 1 to synchronously rotate counterclockwise, when an operator rotates the second handle 4 to a second limit block 15 (the second handle 4 rotates clockwise by 180 degrees), the second handle 4 is released, the spring releases energy to drive the rotating shaft of the spring timer 7 to drive the second handle 4 to rotate counterclockwise, and when the second handle rotates to 90 degrees, the trigger structure 8 starts to trigger the contact switch 11, in the continuous rotation process, the trigger structure 8 disconnects the contact switch 11, the circuit of the motor 9 is cut off, at this time, the plate surface of the dish plate 1 is perpendicular to the direction of the pipe 16 pipeline of the bleeding pipe, that is, the pipe 16 pipeline of the bleeding pipe is in a closed state, the bleeding operation is finished, and at the same time, the first handle 3 rotates counterclockwise to the first handle 12.1 (the first handle 3 rotates counterclockwise just to empty); subsequently, the shaft of the clockwork timer 7 continues to rotate the trigger structure 8 counterclockwise until the clockwork energy is discharged and the second handle 4 is just returned to the second latch groove 14.1 (the second handle 4 rotates 90 degrees counterclockwise).

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. The automatic shutoff valve for the diffusing pipe of the gas boiler is characterized by comprising a disc plate, a box body, a first handle, a second handle, a valve rod, a first gear, a spring timer, a trigger structure, a motor, a second gear and a contact switch, wherein the valve rod, the first gear, the spring timer, the trigger structure, the motor, the second gear and the contact switch are arranged in the box body; the valve rod is rotationally arranged on the box body, one end of the valve rod penetrates through the side wall of the box body and is fixedly connected with the first handle, the other end of the valve rod penetrates through the side wall of the box body and is welded with the edge of the disc plate, the valve rod is arranged in parallel with the surface of the disc plate, and the first gear is fixedly sleeved on the valve rod; one end of a rotating shaft of the clockwork spring timer penetrates through the side wall of the box body to be fixedly connected with the second handle, and the other end of the rotating shaft of the clockwork spring timer is fixedly provided with the trigger structure; the motor is electrically connected with the contact switch, and the trigger structure is movably contacted with the contact switch; the output shaft of the motor is fixedly sleeved with the second gear, and the second gear is in meshed transmission connection with the first gear.

2. The automatic shutoff valve for the bleeding pipe of the gas boiler as claimed in claim 1, wherein said trigger structure comprises a fixed plate, a spring and a roller, one end of said fixed plate is connected with the shaft of said roller through said spring, and the plate surface of said fixed plate is fixedly connected with one end of the rotating shaft of said clockwork timer.

3. The automatic shutoff valve for the bleeding pipe of the gas boiler according to claim 1 or 2, characterized in that a first positioning block is fixed in the middle of the outer wall of the box body on the same side as the first handle, the first positioning block is provided with a first latch groove, and the first handle is movably arranged in the first latch groove; and a first limiting block is fixed at the lower part of the outer wall of the box body at the same side as the first handle, and the first handle is abutted against the first limiting block when rotated by 90 degrees clockwise from the first bolt groove.

4. The automatic closing valve for the bleeding pipe of the gas boiler as set forth in claim 3, wherein a second positioning block is fixed to the upper portion of the outer wall of the casing on the same side as the second handle, the second positioning block being provided with a second latch groove, the second handle being movably disposed in the second latch groove; and a second limiting block is fixed at the lower part of the outer wall of the box body at the same side as the second handle, and the second handle is abutted against the second limiting block when the second handle is clockwise rotated by 180 degrees through the second bolt groove.

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