阅读说明：本技术 一种消防用多道密封两通旋塞阀 (Multi-sealing two-way plug valve for fire fighting ) 是由 朱华平 于 2021-11-15 设计创作，主要内容包括：本发明公开了一种消防用多道密封两通旋塞阀,涉及阀门技术领域。本发明包括旋塞阀本体和连接件；旋塞阀本体与连接件通过紧固螺栓固定连接；两滑动仓依次滑动配合有第一阀板件和第二阀板件；出水管一端固定连接有单向阀；储水箱内底面设置有抽水泵；进水支管贯穿储水箱与抽水泵出水口固定连接；单向阀与储水箱插接配合。本发明通过连接把手带动转动齿轮的转动,从而带动双向螺纹杆的转动,使得两阀板同步反向移动,实现水流量的调节；当减小水量时,两阀板相互靠近,部分水流通过单向阀流入储水箱中,通过抽水泵将其送入分隔箱中作为补充水源再次进入阀室中,有效减小两阀门受到水流的冲击力,提高其使用寿命。(The invention discloses a multi-sealing two-way plug valve for fire fighting, and relates to the technical field of valves. The plug valve comprises a plug valve body and a connecting piece; the plug valve body is fixedly connected with the connecting piece through a fastening bolt; the two sliding bins are sequentially in sliding fit with a first valve plate piece and a second valve plate piece; one end of the water outlet pipe is fixedly connected with a one-way valve; a water pump is arranged on the inner bottom surface of the water storage tank; the water inlet branch pipe penetrates through the water storage tank and is fixedly connected with the water outlet of the water pump; the one-way valve is matched with the water storage tank in an inserting way. The two valve plates synchronously and reversely move by driving the rotation of the rotating gear through the connecting handle so as to drive the rotation of the bidirectional threaded rod, thereby realizing the regulation of water flow; when the water quantity is reduced, the two valve plates are close to each other, partial water flow flows into the water storage tank through the one-way valve, and the partial water flow is sent into the separation tank through the water suction pump to enter the valve chamber again as a supplementary water source, so that the impact force of the water flow on the two valves is effectively reduced, and the service life of the two valves is prolonged.)

1. The utility model provides a fire control is with two logical plug valves of multichannel sealing which characterized in that:

comprises a plug valve body (1) and a connecting piece (2); the plug valve body (1) is fixedly connected with the connecting piece (2) through a fastening bolt;

the plug valve body (1) comprises a valve chamber (3); sliding bins (4) are symmetrically arranged on two sides of the inner wall of the valve chamber (3) from inside to outside; the two sliding bins (4) are sequentially in sliding fit with a first valve plate piece (5) and a second valve plate piece (6);

water outlet pipes (7) are symmetrically arranged on two sides of the inner wall of the valve chamber (3) below the sliding bin (4) from inside to outside; one end of the water outlet pipe (7) is fixedly connected with a one-way valve (8);

the connecting piece (2) comprises a water storage tank (9) and a water guide pipe (10); a water suction pump (11) is arranged on the inner bottom surface of the water storage tank (9); a water inlet branch pipe (12) is arranged on the inner wall of the water guide pipe (10) from inside to outside; the water inlet branch pipe (12) penetrates through the water storage tank (9) and is fixedly connected with the water outlet of the water suction pump (11); the one-way valve (8) is in plug fit with the water storage tank (9).

2. A multi-sealing two-way plug valve for fire fighting according to claim 1, characterized in that the inner wall of the valve chamber (3) is symmetrically provided with mounting holes (13) above the sliding chamber (4); the mounting hole (13) is matched with a bidirectional threaded rod (14) in a rotating way; one end of the bidirectional threaded rod (14) is fixedly connected with a driven gear (15); a rotating shaft (16) is rotatably matched between the mounting hole (13) and the sliding bin (4) on the outer wall of the valve chamber (3); one end of the rotating shaft (16) is fixedly connected with a rotating gear (17); the rotating gear (17) is meshed with the driven gear (15).

3. A multi-sealing two-way plug valve for fire fighting according to claim 2, characterized in that a connection handle (18) is fixedly connected to the side of the rotation gear (17).

4. A multi-sealing two-way stopcock for fire fighting according to claim 2, characterized in that the first and second valve plate members (5, 6) each comprise a valve plate (19); the surface of the valve plate (19) is fixedly connected with a threaded sleeve (20); the threaded sleeve (20) is in threaded rotation fit with the bidirectional threaded rod (14); one side surface of the valve plate (19) is fixedly connected with a sliding plate (21); the side surface of the valve plate (19) is positioned below the sliding plate (21) and is fixedly connected with a sliding shell (22); a plurality of water leakage holes (23) are formed in each surface of the sliding shell (22).

5. A multichannel sealed two-way plug valve for fire fighting as claimed in claim 4, characterized in that the other opposite side surface of the valve plate (19) of the first valve plate member (5) is fixedly connected with protrusions (24) in a linear array distribution; grooves (25) are distributed on the other opposite side surface of the valve plate (19) of the second valve plate (6) in a linear array; the protrusion (24) is in plug fit with the groove (25).

6. A multi-sealing two-way plug valve for fire fighting according to claim 1, characterized in that a first connecting flange (26) and a second connecting flange (27) are fixedly connected to both ends of the valve chamber (3) in sequence; a third connecting flange (28) and a fourth connecting flange (29) are fixedly connected to two ends of the water guide pipe (10) in sequence; the second connecting flange (27) and the third connecting flange (28) are fixedly connected through fastening bolts.

7. The multi-sealing two-way plug valve for fire fighting according to claim 1, wherein a separation box (30) is fixedly connected to the inner wall of the water conduit (10); the surface of the separation box (30) is hinged and matched with a rotating plate (31); a limiting plate (32) is fixedly connected to the inner wall of the water guide pipe (10) above the water inlet branch pipe (12); a connecting spring (33) is fixedly connected between the rotating plate (31) and the separation box (30); the water outlet end of the water inlet branch pipe (12) is positioned inside the separation tank (30).

8. A multi-sealing two-way stopcock for fire fighting according to claim 1, characterized in that the one-way valve (8) comprises a valve housing (34); a return spring (35) is fixedly connected to the inner wall of the valve shell (34) far away from the water outlet pipe (7); one end of the return spring (35) is fixedly connected with a baffle plate (36); the baffle (36) is in sliding fit with the inner wall of the valve shell (34); a first connecting pipe (37) is arranged on the inner bottom surface of the valve shell (34); a second connecting pipe (38) is arranged at the top of the water storage tank (9); the first connecting pipe (37) is in plug fit with the second connecting pipe (38).

9. A multi-sealing two-way plug valve for fire fighting as defined in claim 8, wherein a third connecting pipe (39) is provided on the inner side of the water storage tank (9); a hose (40) is fixedly connected between the third connecting pipe (39) and the first connecting pipe (37) which is far away from the water storage tank (9).

Technical Field

The invention belongs to the technical field of valves, and particularly relates to a multi-sealing two-way plug valve for fire fighting.

Background

The plug valve is a through valve which can be quickly opened and closed, and can completely prevent the plug valve from contacting with flowing media when the plug valve is fully opened due to the wiping action of the movement between rotary sealing surfaces. When a valve core flow passage rotates to be consistent with a valve body flow passage, the plug valve is opened, and when the valve core flow passage rotates to be vertical to the valve body flow passage, the plug valve is closed, so that sealing is realized through inlet end pressure.

The fire hydrant is provided with the plug valve for controlling the water flow, the connecting flange at the water outlet of the fire hydrant is directly connected with the fire hose, the plug valve is rotated, the valve core and the valve body are subjected to angle change, and the control adjustment and the on-off of the water flow are realized; however, because the water flow at the water outlet of the fire hydrant is large, when the valve core is rotated and adjusted, large impact is caused to the deflected valve core, the valve core is easy to damage, meanwhile, the valve core is easy to be forced to rotate by large water flow, the adjustment of the water flow is influenced, and the service life of the fire hydrant is shortened.

Disclosure of Invention

The invention aims to provide a multi-sealing two-way plug valve for fire fighting, which drives a rotating gear to rotate by connecting a handle, thereby driving a bidirectional threaded rod to rotate, enabling two valve plates to synchronously and reversely move, and realizing the regulation of water flow; when the water quantity is reduced, the two valve plates are close to each other, partial water flow flows into the water storage tank through the one-way valve, and the partial water flow is sent into the separation tank through the water suction pump to enter the valve chamber again as a supplementary water source, so that the impact force of the water flow on the two valves is effectively reduced, the service life of the two valves is prolonged, and the existing problems are solved.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a multi-sealing two-way plug valve for fire fighting, which comprises a plug valve body and a connecting piece, wherein the plug valve body is provided with a plug hole; the plug valve body is fixedly connected with the connecting piece through a fastening bolt; the stopcock body comprises a valve chamber; sliding bins are symmetrically arranged on two sides of the inner wall of the valve chamber from inside to outside; the two sliding bins are sequentially in sliding fit with a first valve plate piece and a second valve plate piece;

water outlet pipes are symmetrically arranged on two sides of the inner wall of the valve chamber below the sliding bin from inside to outside; one end of the water outlet pipe is fixedly connected with a one-way valve;

the connecting piece comprises a water storage tank and a water guide pipe; a water suction pump is arranged on the inner bottom surface of the water storage tank; a water inlet branch pipe is arranged on the inner wall of the water guide pipe from inside to outside; the water inlet branch pipe penetrates through the water storage tank and is fixedly connected with the water outlet of the water pump; the one-way valve is matched with the water storage tank in an inserting mode.

Further, mounting holes are symmetrically formed in the inner wall of the valve chamber above the sliding bin; the mounting hole is matched with a bidirectional threaded rod in a rotating way; one end of the bidirectional threaded rod is fixedly connected with a driven gear; a rotating shaft is arranged on the outer wall of the valve chamber between the mounting hole and the sliding bin in a rotating fit manner; one end of the rotating shaft is fixedly connected with a rotating gear; the rotating gear is meshed and matched with the driven gear.

Furthermore, a connecting handle is fixedly connected to the side surface of the rotating gear.

Further, the first and second valve plates each comprise a valve plate; the surface of the valve plate is fixedly connected with a threaded sleeve; the threaded sleeve is in threaded rotation fit with the bidirectional threaded rod; one side surface of the valve plate is fixedly connected with a sliding plate; the side surface of the valve plate is positioned below the sliding plate and is fixedly connected with the sliding shell; and a plurality of water leakage holes are formed in each surface of the sliding shell.

Further, the other opposite side surface of the valve plate of the first valve plate piece is distributed in a linear array and fixedly connected with bulges; grooves are distributed on the other side surface of the second valve plate, opposite to the valve plate, in a linear array; the protrusion is in inserting fit with the groove.

Furthermore, a first connecting flange and a second connecting flange are fixedly connected to two ends of the valve chamber in sequence; a third connecting flange and a fourth connecting flange are fixedly connected to two ends of the water guide pipe in sequence; and the second connecting flange is fixedly connected with the third connecting flange through a fastening bolt.

Furthermore, a separation box is fixedly connected to the inner wall of the water guide pipe; the surface of the separation box is hinged and matched with a rotating plate; a limiting plate is fixedly connected to the inner wall of the water guide pipe above the water inlet branch pipe; a connecting spring is fixedly connected between the rotating plate and the separation box; the water outlet end of the water inlet branch pipe is positioned in the separation box.

Further, the one-way valve includes a valve housing; a return spring is fixedly connected to the inner wall of the valve shell far away from the water outlet pipe; one end of the return spring is fixedly connected with a baffle plate; the baffle is in sliding fit with the inner wall of the valve shell; a first connecting pipe is arranged on the inner bottom surface of the valve shell; a second connecting pipe is arranged at the top of the water storage tank; the first connecting pipe is in plug-in fit with the second connecting pipe.

Further, a third connecting pipe is arranged on the inner side surface of the water storage tank; and a hose is fixedly connected between the third connecting pipe and the first connecting pipe at the other position far away from the water storage tank.

The invention has the following beneficial effects:

1. the rotary connection handle is rotated to drive the rotary gear to rotate, so that the bidirectional threaded rod is driven to rotate, the two valve plates synchronously and reversely move, the regulation of water flow is realized, a certain angle is formed between the valve core and the valve body in the rotating process instead of the traditional rotary valve core, and larger water flow causes larger impact force on the deflected valve core to force the valve core to deflect, thereby influencing the water flow regulation accuracy.

2. When the water quantity is reduced, the two valve plates are close to each other by rotating the connecting handle, partial water flows into the water storage tank through the one-way valve, and the partial water flows into the separating tank as a supplementary water source to enter the valve chamber again through the water suction pump, so that the impact force of the water flow on the two valves is effectively reduced, and the service life of the two valves is prolonged.

Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.

Drawings

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

Fig. 1 is a schematic structural diagram of a multi-sealing two-way plug valve for fire fighting according to the present invention.

Fig. 2 is a schematic structural diagram of an enlarged schematic structural diagram at a in fig. 1 according to the present invention.

FIG. 3 is a schematic view of the structure of the plug valve body of the present invention.

Figure 4 is a schematic view of another angular configuration of the plug valve body of the present invention.

Fig. 5 is a schematic view of the structure of the bidirectional threaded rod of the present invention.

Fig. 6 is a schematic structural view of a first valve member of the present invention.

Fig. 7 is a schematic structural view of a second valve plate member of the present invention.

Fig. 8 is a schematic structural view of the connector of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a plug valve body, 2-a connecting piece, 3-a valve chamber, 4-a sliding bin, 5-a first valve plate piece, 6-a second valve plate piece, 7-a water outlet pipe, 8-a one-way valve, 9-a water storage tank, 10-a water guide pipe, 11-a water pump, 12-a water inlet branch pipe, 13-a mounting hole, 14-a two-way threaded rod, 15-a driven gear, 16-a rotating shaft, 17-a rotating gear, 18-a connecting handle, 19-a valve plate, 20-a threaded sleeve, 21-a sliding plate, 22-a sliding shell, 23-a water leakage hole, 24-a bulge, 25-a groove, 26-a first connecting flange, 27-a second connecting flange, 28-a third connecting flange, 29-a fourth connecting flange and 30-a separation box, 31-rotating plate, 32-limiting plate, 33-connecting spring, 34-valve housing, 35-return spring, 36-baffle, 37-first connecting pipe, 38-second connecting pipe, 39-third connecting pipe and 40-hose.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, the invention relates to a multi-sealing two-way plug valve for fire fighting, which comprises a plug valve body 1 and a connecting piece 2; the plug valve body 1 is fixedly connected with the connecting piece 2 through a fastening bolt;

the plug valve body 1 comprises a valve chamber 3; sliding bins 4 are symmetrically arranged on two sides of the inner wall of the valve chamber 3 from inside to outside; the two sliding bins 4 are sequentially in sliding fit with a first valve plate piece 5 and a second valve plate piece 6; water outlet pipes 7 are symmetrically arranged on two sides of the inner wall of the valve chamber 3 below the sliding bin 4 from inside to outside; one end of the water outlet pipe 7 is fixedly connected with a one-way valve 8; by means of the one-way valve 8, water can only flow in from the water outlet pipe 7 and flow out from the first connecting pipe 37, and water in the water storage tank 9 is prevented from flowing backwards into the valve casing 34.

Wherein, the inner wall of the valve chamber 3 is symmetrically provided with mounting holes 13 above the sliding bin 4; the mounting hole 13 is rotatably matched with a bidirectional threaded rod 14; one end of the bidirectional threaded rod 14 is fixedly connected with a driven gear 15; a rotating shaft 16 is rotatably matched between the mounting hole 13 and the sliding bin 4 on the outer wall of the valve chamber 3; one end of the rotating shaft 16 is fixedly connected with a rotating gear 17; the rotating gear 17 is meshed with the driven gear 15; the side surface of the rotating gear 17 is fixedly connected with a connecting handle 18; the first valve plate 5 and the second valve plate 6 each comprise a valve plate 19; the surface of the valve plate 19 is fixedly connected with a threaded sleeve 20; the threaded sleeve 20 is in threaded rotation fit with the bidirectional threaded rod 14; one side surface of the valve plate 19 is fixedly connected with a sliding plate 21; the connecting handle 18 is rotated to drive the rotating gear 17 to rotate, so that the bidirectional threaded rod 14 is rotated, the two valve plates 19 are driven to synchronously and reversely move along the two sliding bins 4 respectively, the distance between the two valve plates 19 is adjusted, and the adjustment and control of water flow are realized;

the side surface of the valve plate 19 is positioned below the sliding plate 21 and is fixedly connected with a sliding shell 22; a plurality of water leakage holes 23 are formed on each surface of the sliding shell 22; by providing the slide case 22 with the water leakage holes 23 on each surface, when the two valve plates 19 are gradually brought close, i.e., when the water flow rate is adjusted, part of the water flows into the valve case 34 through the water leakage holes 23 on the slide case 22.

Wherein, the other opposite side surface of the valve plate 19 of the first valve plate 5 is distributed and fixedly connected with bulges 24 in a linear array; the other opposite side surface of the valve plate 19 of the second valve plate 6 is provided with grooves 25 in linear array distribution; the protrusion 24 is in inserted fit with the groove 25; through the insertion fit of the protrusion 24 and the groove 25, the two valve plates 19 are closed more perfectly, and the sealing performance of the first valve plate 5 and the second valve plate 6 is improved.

Wherein, the two ends of the valve chamber 3 are fixedly connected with a first connecting flange 26 and a second connecting flange 27 in sequence; a third connecting flange 28 and a fourth connecting flange 29 are fixedly connected to two ends of the water guide pipe 10 in sequence; the second connecting flange 27 is fixedly connected with the third connecting flange 28 through fastening bolts; all parts are fixedly connected through fastening bolts, so that the installation, the replacement and the maintenance are convenient.

Wherein, the connecting piece 2 comprises a water storage tank 9 and a water guide pipe 10; a water pump 11 is arranged on the inner bottom surface of the water storage tank 9; a water inlet branch pipe 12 is arranged on the inner wall of the water guide pipe 10 from inside to outside; the water inlet branch pipe 12 penetrates through the water storage tank 9 and is fixedly connected with the water outlet of the water pump 11; the one-way valve 8 is matched with the water storage tank 9 in an inserting way; the inner wall of the water guide pipe 10 is fixedly connected with a separation box 30; the surface of the separation box 30 is hinged and matched with a rotating plate 31; a limiting plate 32 is fixedly connected to the inner wall of the water guide pipe 10 above the water inlet branch pipe 12; a connecting spring 33 is fixedly connected between the rotating plate 31 and the separation box 30; the water outlet end of the water inlet branch pipe 12 is positioned inside the separation box 30; the water supplement source in the water storage tank 9 is pumped into the separation tank 30 through the water inlet branch pipe 12 by starting the water suction pump 11, and the water supplement source in the separation tank 30 pushes the rotating plate 31 open to enter the valve chamber 3 along with the increase of the water supplement source; after the water pump 11 is stopped, the rotating plate 31 is pulled back to the limit plate 32 under the elastic force of the connecting spring 33, so that the reset is realized, and the sealing performance of the separation box 30 is ensured.

Wherein the one-way valve 8 comprises a valve housing 34; a return spring 35 is fixedly connected to the inner wall of the valve shell 34 far away from the water outlet pipe 7; one end of the return spring 35 is fixedly connected with a baffle plate 36; the baffle 36 is in sliding engagement with the inner wall of the valve housing 34; the inner bottom surface of the valve housing 34 is provided with a first connection pipe 37; the top of the water storage tank 9 is provided with a second connecting pipe 38; the first connecting pipe 37 is in plug fit with the second connecting pipe 38; when the water flow needs to be adjusted to a small value, the connecting handle 18 is rotated to enable the two valve plates 19 to synchronously move towards each other, part of the water flow enters the valve housing 34 through the water outlet pipe 7, the water flow extrusion baffle plate 36 presses the return spring 35 to move inside the valve housing 34 until the baffle plate 36 slides through the first connecting pipe 37, and the water flow flows into the water storage tank 9 through the first connecting pipe 37 to serve as a supplementary water source.

Wherein, the inner side surface of the water storage tank 9 is provided with a third connecting pipe 39; a hose 40 is fixedly connected between the third connecting pipe 39 and the first connecting pipe 37 which is far away from the water storage tank 9; the water entering the other valve housing 34 enters the water storage tank 9 through the hose 40 to serve as a supplementary water source, and a flow dividing function is achieved.

The specific working principle of the invention is as follows:

fixedly connecting the fourth connecting flange 29 with the fire hydrant through a fastening bolt, and fixedly connecting the first connecting flange 26 with one end of the fire hose through a fastening bolt; when the upper sliding plates 21 of the two valve plates 19 are completely positioned in the sliding bin 4, the distance between the two valve plates 19 is the largest, and the water flow is the largest at the moment; when the bulges 24 of the sliding plates 21 on the two valve plates 19 are in inserted fit with the grooves 25, the plug valve body 1 is in a sealing state; the connecting handle 18 is rotated to drive the rotating gear 17 to rotate, so that the bidirectional threaded rod 14 is rotated, the two valve plates 19 are driven to synchronously and reversely move along the two sliding bins 4 respectively, the distance between the two valve plates 19 is adjusted, and the adjustment and control of water flow are realized; when the two valve plates 19 are gradually close to each other, namely when the water flow is adjusted, part of water flows into the valve housing 34 through the water leakage holes 23 on the sliding housing 22, the water flow extrudes the baffle 36 to press the return spring 35 to move inside the valve housing 34 until the baffle 36 slides through the first connecting pipe 37, the water flows into the water storage tank 9 through the first connecting pipe 37 to serve as a supplementary water source, and the water entering the other valve housing 34 enters the water storage tank 9 through the hose 40 to serve as a supplementary water source to achieve a shunting effect; the water supplement source in the water storage tank 9 is pumped into the separation tank 30 through the water inlet branch pipe 12 by starting the water suction pump 11, and the water supplement source in the separation tank 30 pushes the rotating plate 31 open to enter the valve chamber 3 along with the increase of the water supplement source; after the water pump 11 is stopped, the rotating plate 31 is pulled back to the limit plate 32 under the elastic force of the connecting spring 33, so that the reset is realized, and the sealing performance of the separation box 30 is ensured.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.