Fire-fighting explosion-proof electromagnetic valve

Abstract

The utility model discloses a fire-fighting anti-explosion electromagnetic valve which comprises a top anti-explosion installation shell, an electromagnetic valve body, a protection pipe, a wire body, a bottom plugging and sealing assembly, a first sealing sleeve, a third annular groove, a second sealing sleeve and an electromagnetic drive fluid control mechanism. The protection tube is fixedly installed on the right side of the top anti-explosion installation shell, the wire body is arranged in an inner cavity of the protection tube, and the bottom plugging and sealing assembly is arranged at the bottom of the top anti-explosion installation shell. The fire-fighting explosion-proof electromagnetic valve has the advantage of being good in sealing effect, and solves the problems that in the long-term use process of a fire-fighting explosion-proof electromagnetic valve in the prior art, the sealing effect becomes poor due to the fact that a gap exists in the connecting position of a wire and a pipeline, and meanwhile after the fire-fighting explosion-proof electromagnetic valve is disassembled and maintained, the fire-fighting explosion-proof electromagnetic valve needs to be installed again, and the sealing effect is poor. And the sealing performance cannot be ensured not to be influenced.

Description

Technical Field

[0001] This utility model relates to the field of fire-fighting explosion-proof solenoid valve technology, specifically to a fire-fighting explosion-proof solenoid valve. Background Technology

[0002] Explosion-proof solenoid valves are safety control devices widely used in flammable and explosive environments, primarily for controlling the flow of gases or liquids. Designed to meet explosion-proof standards, they can operate safely in hazardous environments, ensuring the safety of industrial production and equipment operation. Explosion-proof solenoid valves typically consist of a valve body, solenoid coil, valve core, and seals, and achieve switching action through electromagnetic principles, featuring fast response and high reliability.

[0003] Existing fire-fighting explosion-proof solenoid valves suffer from poor sealing performance due to gaps at the connection between the wires and pipes during long-term use. Furthermore, after disassembly and maintenance, reinstallation is required, and the sealing performance cannot be guaranteed to remain unaffected. Therefore, there is an urgent need for a fire-fighting explosion-proof solenoid valve to overcome these defects. Utility Model Content

[0004] The purpose of this utility model is to provide a fire-fighting explosion-proof solenoid valve with the advantage of good sealing effect, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire-fighting explosion-proof solenoid valve, comprising a top explosion-proof mounting shell, a solenoid valve body, a protective tube, a wire body, a bottom sealing assembly, a first sealing sleeve, a third annular groove, a second sealing sleeve, and an electromagnetically driven fluid control mechanism. The solenoid valve body is fixedly mounted on the top of the top explosion-proof mounting shell, the protective tube is fixedly mounted on the right side of the top explosion-proof mounting shell, the wire body is disposed in the inner cavity of the protective tube, and the bottom sealing assembly is disposed at the bottom of the top explosion-proof mounting shell. The bottom sealing assembly includes a bottom explosion-proof mounting shell, a sealing ring plate, a first annular groove, an annular seat, a first sealing ring, a slide groove, a slider, a spring, a second annular groove, and a second sealing ring.

[0006] Furthermore, the electromagnetic drive fluid control mechanism is fixedly installed at the center of the top of the inner cavity of the top explosion-proof mounting housing, and the second sealing sleeve is fixedly installed at the top of the inner cavity of the top explosion-proof mounting housing.

[0007] Furthermore, an annular seat is fixedly installed on the top of the bottom explosion-proof mounting housing, a first sealing ring is sleeved on the surface of the annular seat, and a first annular groove is formed inside the bottom explosion-proof mounting housing.

[0008] Furthermore, a sealing ring plate is provided inside the first annular groove, and a second annular groove is provided inside the bottom explosion-proof mounting shell and at the bottom of the first annular groove, and a second sealing ring is fixedly installed in the inner cavity of the second annular groove.

[0009] Furthermore, the inner cavity of the bottom explosion-proof mounting shell is provided with sliding grooves on both sides of the first annular groove, and a slider is slidably connected inside the sliding groove. The side of the slider that is relatively close to the other side is fixedly connected to both sides of the sealing ring plate.

[0010] Furthermore, a spring is fixedly installed in the inner cavity of the slide and at the bottom of the slider, and a third annular groove is provided at the bottom of the top explosion-proof mounting shell.

[0011] Furthermore, the left side of the conductor body extends through the inner cavity of the top explosion-proof mounting shell and is fixedly connected to the right side of the electromagnetic drive fluid control mechanism, and the inner cavity of the protective tube and the surface of the conductor body are fitted with a first sealing sleeve.

[0012] In summary, due to the adoption of the above-mentioned technologies, the beneficial effects of this utility model are:

[0013] This invention transmits electrical signals via a conductor body, guides liquid flow via an electromagnetic valve body, controls the on / off state of the electromagnetic valve body via an electromagnetically driven fluid control mechanism, and adjusts the liquid flow rate. A bottom sealing assembly facilitates maintenance of the entire device. A second sealing sleeve seals the connection between the electromagnetically driven fluid control mechanism and the top explosion-proof mounting housing. A first sealing sleeve seals the gap between the conductor body and the protective tube. During installation, the sealing ring plate penetrates through the third annular groove into the interior of the top explosion-proof mounting housing and is fixed to the bottom explosion-proof mounting housing with bolts. Under force, the bottom of the sealing ring plate penetrates through the second annular groove into the bottom of the bottom explosion-proof mounting housing, and cooperates with the second sealing ring to... The bottom gap is sealed, and the annular seat and the first sealing ring are inserted into the inner cavity of the top explosion-proof mounting shell. Under the action of the first sealing ring, the gap between the inner cavity of the top explosion-proof mounting shell and the annular seat is sealed. The second sealing sleeve further seals the gap between the electromagnetic drive fluid control mechanism and the top explosion-proof mounting shell. Finally, the bolt is tightened to the designated position. During operation, the signal is transmitted to the electromagnetic drive fluid control mechanism under the action of the wire body. The liquid flow rate is controlled by the cooperation of the electromagnetic drive fluid control mechanism and the solenoid valve body. It has the advantage of good sealing effect and solves the problem that the sealing effect of the existing fire-fighting explosion-proof solenoid valve deteriorates due to gaps at the connection between the wire and the pipeline during long-term use. At the same time, after disassembly and maintenance, it is necessary to reinstall it, and the sealing performance cannot be guaranteed to be unaffected. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the top explosion-proof mounting shell of this utility model from another perspective;

[0016] Figure 3 This is a bottom view of the top explosion-proof mounting shell structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the bottom sealing assembly structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the explosion-proof mounting shell at the bottom of this utility model.

[0019] In the diagram: 1. Top explosion-proof mounting housing; 2. Solenoid valve body; 3. Protective tube; 4. Wire body; 5. Bottom sealing assembly; 51. Bottom explosion-proof mounting housing; 52. Sealing ring plate; 53. First annular groove; 54. Annular seat; 55. First sealing ring; 56. Slide groove; 57. Slider; 58. Spring; 59. Second annular groove; 591. Second sealing ring; 6. First sealing sleeve; 7. Third annular groove; 8. Second sealing sleeve; 9. Electromagnetic drive fluid control mechanism. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] This utility model provides, for example Figure 1-5As shown, a fire-fighting explosion-proof solenoid valve includes a top explosion-proof mounting housing 1, a solenoid valve body 2, a protective tube 3, a wire body 4, a bottom sealing assembly 5, a first sealing sleeve 6, a third annular groove 7, a second sealing sleeve 8, and an electromagnetically driven fluid control mechanism 9. The solenoid valve body 2 is fixedly mounted on the top of the top explosion-proof mounting housing 1, the protective tube 3 is fixedly mounted on the right side of the top explosion-proof mounting housing 1, the wire body 4 is disposed in the inner cavity of the protective tube 3, and the bottom sealing assembly 5 is disposed at the bottom of the top explosion-proof mounting housing 1. The bottom sealing assembly 5 includes a bottom explosion-proof mounting housing 51, a sealing ring plate 52, a first annular groove 53, an annular seat 54, a first sealing ring 55, a sliding groove 56, a slider 57, a spring 58, a second annular groove 59, and a second sealing ring 591.

[0022] More specifically, the gap between the conductor body 4 and the protective tube 3 is sealed by setting the first sealing sleeve 6. During installation, the sealing ring plate 52 passes through the third annular groove 7 into the interior of the top explosion-proof mounting shell 1, and is fixed between the top explosion-proof mounting shell 1 and the bottom explosion-proof mounting shell 51 by bolts. Under the action of force, the bottom of the sealing ring plate 52 passes through the second annular groove 59 into the bottom of the bottom explosion-proof mounting shell 51, and seals the bottom gap with the cooperation of the second sealing ring 591. At the same time, the annular seat 54 and the first sealing ring 55 are inserted into the inner cavity of the top explosion-proof mounting shell 1. Under the action of the first sealing ring 55, the gap between the inner cavity of the top explosion-proof mounting shell 1 and the annular seat 54 is sealed. The second sealing sleeve 8 further seals the gap between the electromagnetic drive fluid control mechanism 9 and the top explosion-proof mounting shell 1. Finally, the bolts are tightened to the designated position. During operation, the signal is transmitted to the electromagnetic drive fluid control mechanism 9 under the action of the conductor body 4. The liquid flow rate is controlled by the cooperation of the electromagnetic drive fluid control mechanism 9 and the solenoid valve body 2, which has the advantage of good sealing effect.

[0023] In some embodiments, the electromagnetically driven fluid control mechanism 9 is fixedly installed at the center of the top of the inner cavity of the top explosion-proof mounting housing 1, and the second sealing sleeve 8 is fixedly installed at the top of the inner cavity of the top explosion-proof mounting housing 1. More specifically, the sealing coefficient of the top of the top explosion-proof mounting housing 1 is increased by the cooperation between the second sealing sleeve 8 and the top explosion-proof mounting housing 1.

[0024] In some embodiments, an annular seat 54 is fixedly installed on the top of the bottom explosion-proof mounting housing 51, and a first sealing ring 55 is sleeved on the surface of the annular seat 54. A first annular groove 53 is opened inside the bottom explosion-proof mounting housing 51. More specifically, by setting the annular seat 54, the first sealing ring 55 is conveniently fixed on its surface, mainly to seal the gap between the annular seat 54 and the inner cavity of the top explosion-proof mounting housing 1.

[0025] In some embodiments, a sealing ring plate 52 is provided inside the first annular groove 53, and a second annular groove 59 is provided inside the bottom explosion-proof mounting housing 51 and at the bottom of the first annular groove 53. A second sealing ring 591 is fixedly installed in the inner cavity of the second annular groove 59. More specifically, the sealing ring plate 52 is accommodated by the first annular groove 53, and the second sealing ring 591 is installed by the second annular groove 59.

[0026] In some embodiments, the inner cavity of the bottom explosion-proof mounting housing 51 is provided with sliding grooves 56 on both sides of the first annular groove 53. A slider 57 is slidably connected inside the sliding groove 56. The side of the slider 57 that is relatively close to the other side is fixedly connected to both sides of the sealing ring plate 52. More specifically, the sliding groove 56 is used to limit the slider 57 to prevent the slider 57 from shaking during movement.

[0027] In some embodiments, a spring 58 is fixedly installed in the inner cavity of the slide groove 56 and at the bottom of the slider 57, and a third annular groove 7 is provided at the bottom of the top explosion-proof mounting housing 1. More specifically, the slider 57 is used to limit the sealing ring plate 52 to prevent the sealing ring plate 52 from shaking during movement.

[0028] In some embodiments, the left side of the conductor body 4 extends through the inner cavity of the top explosion-proof mounting housing 1 and is fixedly connected to the right side of the electromagnetic drive fluid control mechanism 9. The inner cavity of the protective tube 3 and the surface of the conductor body 4 are fitted with a first sealing sleeve 6. More specifically, the slider 57 is reset by setting a spring 58.

[0029] Working principle:

[0030] Step 1: During installation, the sealing ring plate 52 passes through the third annular groove 7 into the interior of the top explosion-proof mounting shell 1, and is fixed between the top explosion-proof mounting shell 1 and the bottom explosion-proof mounting shell 51 by bolts. Under the action of force, the bottom of the sealing ring plate 52 passes through the second annular groove 59 into the bottom of the bottom explosion-proof mounting shell 51, and seals the bottom gap with the cooperation of the second sealing ring 591.

[0031] Step 2: Simultaneously, the annular seat 54 and the first sealing ring 55 are inserted into the inner cavity of the top explosion-proof mounting housing 1. Under the action of the first sealing ring 55, the gap between the inner cavity of the top explosion-proof mounting housing 1 and the annular seat 54 is sealed. The second sealing sleeve 8 further seals the gap between the electromagnetic drive fluid control mechanism 9 and the top explosion-proof mounting housing 1. Finally, the bolt is tightened to the designated position. During operation, the signal is transmitted to the electromagnetic drive fluid control mechanism 9 under the action of the wire body 4. The liquid flow rate is controlled by the cooperation of the electromagnetic drive fluid control mechanism 9 and the solenoid valve body 2, which has the advantage of good sealing effect.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A fire-fighting explosion-proof solenoid valve, characterized in that: The device includes a top explosion-proof mounting housing (1), an electromagnetic valve body (2), a protective tube (3), a wire body (4), a bottom sealing assembly (5), a first sealing sleeve (6), a third annular groove (7), a second sealing sleeve (8), and an electromagnetically driven fluid control mechanism (9). The electromagnetic valve body (2) is fixedly installed on the top of the top explosion-proof mounting housing (1), the protective tube (3) is fixedly installed on the right side of the top explosion-proof mounting housing (1), the wire body (4) is located in the inner cavity of the protective tube (3), and the bottom sealing assembly (5) is located at the bottom of the top explosion-proof mounting housing (1). The bottom sealing assembly (5) includes a bottom explosion-proof mounting housing (51), a sealing ring plate (52), a first annular groove (53), an annular seat (54), a first sealing ring (55), a sliding groove (56), a slider (57), a spring (58), a second annular groove (59), and a second sealing ring (591).

2. The fire-fighting explosion-proof solenoid valve according to claim 1, characterized in that: The electromagnetic drive fluid control mechanism (9) is fixedly installed at the center of the top of the inner cavity of the top explosion-proof housing (1), and the second sealing sleeve (8) is fixedly installed at the top of the inner cavity of the top explosion-proof housing (1).

3. The fire-fighting explosion-proof solenoid valve according to claim 1, characterized in that: An annular seat (54) is fixedly installed on the top of the bottom explosion-proof mounting housing (51). A first sealing ring (55) is sleeved on the surface of the annular seat (54), and a first annular groove (53) is opened inside the bottom explosion-proof mounting housing (51).

4. The fire-fighting explosion-proof solenoid valve according to claim 1, characterized in that: The first annular groove (53) is provided with a sealing ring plate (52), and the bottom explosion-proof mounting shell (51) is provided with a second annular groove (59) at the bottom of the first annular groove (53), and a second sealing ring (591) is fixedly installed in the inner cavity of the second annular groove (59).

5. The fire-fighting explosion-proof solenoid valve according to claim 1, characterized in that: The inner cavity of the bottom explosion-proof mounting shell (51) and both sides of the first annular groove (53) are provided with sliding grooves (56). A slider (57) is slidably connected inside the sliding groove (56). The side of the slider (57) that is relatively close to the other side is fixedly connected to both sides of the sealing ring plate (52).

6. The fire-fighting explosion-proof solenoid valve according to claim 1, characterized in that: A spring (58) is fixedly installed in the inner cavity of the slide groove (56) and at the bottom of the slider (57), and a third annular groove (7) is opened at the bottom of the top explosion-proof mounting shell (1).

7. The fire-fighting explosion-proof solenoid valve according to claim 1, characterized in that: The left side of the conductor body (4) extends through the inner cavity of the top explosion-proof mounting shell (1) and is fixedly connected to the right side of the electromagnetic drive fluid control mechanism (9). The inner cavity of the protective tube (3) and the surface of the conductor body (4) are fitted with a first sealing sleeve (6).

Images