Fire-fighting explosion-proof pressure switch protection mechanism

Abstract

The utility model relates to the technical field of pressure switch protection, and discloses a fire-fighting explosion-proof pressure switch protection mechanism which comprises a first protection cover, a second protection cover is arranged on one side of the first protection cover, a switch body is arranged in the first protection cover and the second protection cover, connecting blocks are fixedly connected to the two sides of the first protection cover, and the first protection cover and the second protection cover are fixedly connected through bolts. A first clamping groove is formed in the connecting block, mounting blocks are fixedly connected to the two sides of the second protective cover, limiting assemblies are arranged in the mounting blocks, limiting blocks are slidably connected to the outer walls of the limiting assemblies, and connecting rods are rotatably connected to one sides of the limiting blocks. According to the explosion-proof pressure switch protection mechanism, through cooperation of the connecting block, the mounting block, the first clamping block, the connecting rod and the limiting block, the effect of quickly mounting the protection cover is achieved, the problem that when the protection shell needs to be mounted, the protection shell needs to be mounted on the switch through a bolt and a nut in cooperation with a tool, and inconvenience is caused is solved, and the practicability of the explosion-proof pressure switch protection mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure switch protection, in particular to a fire-fighting explosion-proof pressure switch protection mechanism. Background Art

[0002] Fire explosion-proof pressure switch is a device used to monitor and control the liquid or gas pressure in the fire protection system. Its main function is to trigger the switch when the set pressure threshold is reached, thereby activating or stopping the corresponding control equipment, such as fire pumps or valves. The protection mechanism refers to the device or measure used to protect the pressure switch from damage or interference.

[0003] After searching, the announcement number: CN219610258U discloses a pressure switch protection mechanism and heat dissipation device to prevent accidental touch, which relates to the field of pressure switch protection technology, including a protection mechanism and a sealing assembly. The protective shell will protect the outer end of the pressure switch body to prevent people from accidentally touching the adjustment knob, thereby changing the set pressure value. When adjustment is required, the sealing cover can be opened and the pressure switch body can be adjusted through the through hole. When the adjustment is completed, the sealing cover is rotated to cover the upper end of the through hole again for sealing protection. When the sealing cover is closed, the limit assembly will limit the sealing cover to prevent the sealing cover from rotating out of the through hole by itself, thereby avoiding accidental touch by people and achieving the effect of waterproof and dustproof. However, this patent only solves the problem that the box is set on one side of the heat dissipation hole to prevent rainwater and dust from directly entering the protective shell through the heat dissipation hole, and the exhaust hole is set at the bottom of the box to prevent rainwater from entering the inside of the box. The dustproof net and waterproof breathable membrane set at the exhaust hole can prevent external dust or rainwater from flowing into the protective shell through the heat dissipation hole. It does not solve the problem that when the protective shell needs to be installed, the protective shell needs to be installed on the switch with matching tools using bolts and nuts, which is inconvenient and affects the practicability of the explosion-proof pressure switch protection mechanism. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a fire-proof explosion-proof pressure switch protection mechanism, aiming to improve the problem that when the protective shell needs to be installed, it is necessary to use bolts and nuts to match the tools and then install the protective shell on the switch, which is inconvenient and affects the practicality of the explosion-proof pressure switch protection mechanism.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fire-fighting explosion-proof pressure switch protection mechanism comprises a first protective cover, a second protective cover is arranged on one side of the first protective cover, a switch body is arranged inside the first protective cover and the second protective cover, connecting blocks are fixedly connected on both sides of the first protective cover, a card slot 1 is opened inside the connecting block, mounting blocks are fixedly connected on both sides of the second protective cover, a limiting assembly is arranged inside the mounting block, the outer wall of the limiting assembly is slidably connected to the limiting block, a connecting rod is rotatably connected to one side of the limiting block, one end of the connecting rod is rotatably connected to a card block 1, a connecting rod is rotatably connected inside the card block 1, and the outer wall of the card block 1 is embedded in the card slot 1.

[0006] As a further description of the above technical solution:

[0007] The limiting assembly includes a limiting column and a first spring, wherein the first spring is sleeved inside the outer wall of the limiting column, the limiting column and both ends of the first spring are fixedly connected inside the mounting block, and the limiting block is slidably connected inside the outer wall of the limiting column.

[0008] As a further description of the above technical solution:

[0009] A heat insulation layer is arranged inside the first protective cover and the second protective cover, a second card slot is opened inside the first protective cover, a first connecting slot is opened inside the second protective cover, and a sealing ring is arranged inside the first protective cover.

[0010] As a further description of the above technical solution:

[0011] One side of the sealing ring is embedded in the second clamping groove, and the other side of the sealing ring is embedded in the first connecting groove.

[0012] As a further description of the above technical solution:

[0013] A locking block is fixedly connected to the top of the second protective cover, and a through hole is provided inside the locking block.

[0014] As a further description of the above technical solution:

[0015] A strap is fixedly connected to the top of the first protective cover, a second connecting groove is provided inside the strap, and an outer wall of the strap is slidably connected to the inside of the through hole.

[0016] As a further description of the above technical solution:

[0017] The locking block is slidably connected with a slider inside, the bottom of the slider is fixedly connected with a second clamping block, and the outer wall of the second clamping block is embedded in the second connecting groove.

[0018] As a further description of the above technical solution:

[0019] A telescopic rod is arranged inside the locking block, a second spring is sleeved on the outer wall of the telescopic rod, one end of the telescopic rod and the second spring are fixedly connected inside the locking block, and the other ends of the telescopic rod and the second spring are fixedly connected to the top of the slider.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, firstly, the effect of quickly installing the protective cover is achieved through the cooperation between the connecting block, the mounting block, the clamping block 1, the connecting rod and the limit block, which solves the problem that when the protective shell needs to be installed, it is necessary to use bolts and nuts to match the tools and then install the protective shell on the switch, which is inconvenient and affects the practicality of the explosion-proof pressure switch protection mechanism, thereby improving the practicality of the explosion-proof pressure switch protection mechanism.

[0022] 2. In the utility model, through the cooperation between the first protective cover, the second protective cover, the insulation layer, the strap and the locking block, the internal switch body is insulated and fireproofed, which solves the problem that the fire-fighting explosion-proof pressure switch can only block rain and dust, and cannot withstand high temperature baking when a fire occurs, resulting in damage to the switch body and inability to work normally, affecting the stability of the fire-fighting explosion-proof pressure switch, thereby improving the stability of the fire-fighting explosion-proof pressure switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A three-dimensional diagram of the fire-fighting explosion-proof pressure switch protection mechanism proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the internal structure of the mounting block of the fire-proof explosion-proof pressure switch protection mechanism proposed by the utility model;

[0025] Figure 3 A schematic diagram of the internal structure of the second protective cover of the fire-proof explosion-proof pressure switch protection mechanism proposed by the utility model;

[0026] Figure 4 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0027] Figure 5 for Figure 3 Schematic diagram of the local enlarged structure at point B in the middle.

[0028] Legend:

[0029] 1. First protective cover; 2. Second protective cover; 3. Connecting block; 4. Slot 1; 5. Mounting block; 6. Limiting column; 7. Limiting block; 8. Connecting rod; 9. Block 1; 10. Connecting rod; 11. First spring; 12. Switch body; 13. Slot 2; 14. Sealing ring; 15. Connecting slot 1; 16. Strap; 17. Connecting slot 2; 18. Locking block; 19. Through hole; 20. Slider; 21. Block 2; 22. Telescopic rod; 23. Second spring; 24. Insulation layer. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1-3 , the utility model provides an embodiment: a fire explosion-proof pressure switch protection mechanism, comprising a first protective cover 1, a second protective cover 2 is arranged on one side of the first protective cover 1, a switch body 12 is arranged inside the first protective cover 1 and the second protective cover 2, connecting blocks 3 are fixedly connected on both sides of the first protective cover 1, a card slot 4 is opened inside the connecting block 3, mounting blocks 5 are fixedly connected on both sides of the second protective cover 2, a limiting component is arranged inside the mounting block 5, the outer wall of the limiting component is slidably connected to the limiting block 7, one side of the limiting block 7 is rotatably connected to a connecting rod 8, one end of the connecting rod 8 is rotatably connected to a card block 9, the card block 9 is rotatably connected to a connecting rod 10, the outer wall of the card block 9 is embedded in the card slot 4, the limiting component comprises a limiting column 6 and a first spring 11, the first spring 11 is internally sleeved on the outer wall of the limiting column 6, the limiting column 6 and the first spring 11 are fixedly connected to the mounting block 5 at both ends, and the limiting block 7 is internally slidably connected to the outer wall of the limiting column 6;

[0032] Specifically, when installing the outer wall protective cover of the switch body 12, first, we need to tightly buckle the first protective cover 1 and the second protective cover 2 together to ensure that the switch body 12 is completely wrapped in the first protective cover 1 and the second protective cover 2. The importance of this step is that it can effectively protect the switch body 12 from erosion by the external environment and extend its service life. Next, we need to ensure that the card block 9 inside the mounting block 5 on both sides of the second protective cover 2 is completely embedded in the card groove 4. The purpose of this step is to fix the position of the first protective cover 1 and the second protective cover 2 to prevent them from shifting during use. Once the card block 9 is connected and locked with the connecting block 3, the stability of the first protective cover 1 and the second protective cover 2 will be The stability of the protective cover 1 and the second protective cover 2 is greatly improved. In addition, the block 9 is also connected to the limit block 7 through the connecting rod 8. This design enables the first protective cover 1 and the second protective cover 2 to better maintain their shapes and positions when impacted by external forces. The limit blocks 7 on both sides support the block 9 through the tension of the first spring 11, further improving the stability of the protective cover. At the top of the block 9, the connecting rod 10 is responsible for connecting the block 9 and limiting the position. This design is intended to ensure that the first protective cover 1 and the second protective cover 2 can always maintain a stable state during the opening and closing process. Through this design, we can greatly improve the stability of the block 9 and ensure that the first protective cover 1 and the second protective cover 2 can play a good protective role under various working conditions.

[0033] Reference Figure 3-5 The limiting assembly includes a limiting column 6 and a first spring 11. The first spring 11 is sleeved inside the outer wall of the limiting column 6. Both ends of the limiting column 6 and the first spring 11 are fixedly connected inside the mounting block 5. The limiting block 7 is internally slidably connected to the outer wall of the limiting column 6. One side of the sealing ring 14 is embedded in the second card slot 13, and the other side of the sealing ring 14 is embedded in the connection slot 15. The top of the second protective cover 2 is fixedly connected with a locking block 18, and a through hole 19 is opened inside the locking block 18. The top of the first protective cover 1 is fixedly connected with a strap 16, and the strap A second connecting groove 17 is provided inside 16, the outer wall of the strap 16 is slidably connected to the inside of the through hole 19, a slider 20 is slidably connected inside the locking block 18, a second clamping block 21 is fixedly connected to the bottom of the slider 20, the outer wall of the second clamping block 21 is embedded in the second connecting groove 17, a telescopic rod 22 is provided inside the locking block 18, and a second spring 23 is sleeved on the outer wall of the telescopic rod 22, one end of the telescopic rod 22 and the second spring 23 are fixedly connected to the inside of the locking block 18, and the other end of the telescopic rod 22 and the second spring 23 are fixedly connected to the top of the slider 20;

[0034] Specifically, the first protective cover 1 and the second protective cover 2 are sealed by the sealing ring 14 in the first protective cover 1 being embedded in the connecting groove 15 on the second protective cover 2. This sealing method has a high sealing performance and can effectively prevent external impurities and heat from entering the interior of the device. Secondly, the sealing ring 14 is installed in the first protective cover 1 through the card groove 13. This design enables the sealing ring 14 to be stably fixed in position, avoiding the displacement of the sealing ring due to vibration and other reasons. In addition, the strap 16 on the first protective cover 1 passes through the locking block 18 through the through hole 19, so that the card block 21 inside the locking block 18 is embedded in the connecting groove 17 on the strap 16. Locking, this step further improves the tightness of the connection between the first protective cover 1 and the second protective cover 2, and ensures the overall stability of the protective cover. In addition, a heat insulation layer 24 is arranged inside the first protective cover 1 and the second protective cover 2. The heat insulation layer 24 is supported by ceramic fiber. Ceramic fiber is a high temperature resistant and chemically stable material. When a fire occurs, the heat insulation layer 24 can effectively insulate and prevent the fire from spreading to the inside of the equipment, thereby protecting the switch body 12 from damage. Finally, the first protective cover 1 and the second protective cover 2 are both supported by stainless steel. Stainless steel has high strength and corrosion resistance, and can provide sufficient protection strength to ensure that the switch body 12 is not damaged in harsh environments.

[0035] Working principle: When using the fire explosion-proof pressure switch protection mechanism, you first need to install the first protective cover 1 and the second protective cover 2 on the outer wall of the switch body 12. First, buckle the first protective cover 1 and the second protective cover 2 to wrap the switch body 12, so that the card block 9 inside the mounting block 5 on both sides of the second protective cover 2 is embedded in the card groove 4, so that the card block 9 is connected and locked with the connecting block 3, and the card block 9 is connected with the limit block 7 through the connecting rod 8. The limit blocks 7 on both sides support the card block 9 through the tension of the first spring 11. The top of the card block 9 is connected by the connecting rod 10 for limiting, so as to improve the stability of the card block 9. The first protective cover 1 and the second protective cover 2 are connected through the sealing ring 14 in the first protective cover 1 that is embedded in the connecting groove on the second protective cover 2 The first protective cover 1 and the second protective cover 2 are sealed inside. The sealing ring 14 is installed inside the first protective cover 1 through the card slot 2 13. Then, the strap 16 on the first protective cover 1 passes through the locking block 18 through the through hole 19, so that the card block 21 inside the locking block 18 is embedded in the connecting groove 2 17 on the strap 16 for locking, which further improves the tightness of the connection between the first protective cover 1 and the second protective cover 2. A heat insulation layer 24 is arranged inside the first protective cover 1 and the second protective cover 2. The heat insulation layer 24 is supported by ceramic fiber. Ceramic fiber is a high temperature resistant and chemically stable material. It prevents heat insulation through the heat insulation layer 24 when a fire occurs, and prevents damage to the switch body 12. The first protective cover 1 and the second protective cover 2 are both supported by stainless steel, which can provide a certain strength to protect the switch body 12.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire-fighting explosion-proof pressure switch protection mechanism, comprising a first protection cover (1), characterized in that: A second protective cover (2) is arranged on one side of the first protective cover (1), a switch body (12) is arranged inside the first protective cover (1) and the second protective cover (2), connecting blocks (3) are fixedly connected on both sides of the first protective cover (1), a card slot (4) is provided inside the connecting block (3), mounting blocks (5) are fixedly connected on both sides of the second protective cover (2), a limit assembly is arranged inside the mounting block (5), the outer wall of the limit assembly is slidably connected to the limit block (7), one side of the limit block (7) is rotatably connected to a connecting rod (8), one end of the connecting rod (8) is rotatably connected to a card block (9), the card block (9) is rotatably connected to a connecting rod (10), and the outer wall of the card block (9) is embedded in the card slot (4).

2. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 1 is characterized in that: The limiting assembly comprises a limiting column (6) and a first spring (11), wherein the first spring (11) is sleeved inside the outer wall of the limiting column (6), both ends of the limiting column (6) and the first spring (11) are fixedly connected inside the mounting block (5), and the limiting block (7) is slidably connected inside the outer wall of the limiting column (6).

3. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 1 is characterized in that: A heat insulating layer (24) is provided inside the first protective cover (1) and the second protective cover (2), a second card slot (13) is provided inside the first protective cover (1), a first connecting slot (15) is provided inside the second protective cover (2), and a sealing ring (14) is provided inside the first protective cover (1).

4. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 3 is characterized in that: One side of the sealing ring (14) is embedded in the second clamping groove (13), and the other side of the sealing ring (14) is embedded in the first connecting groove (15).

5. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 1 is characterized in that: A locking block (18) is fixedly connected to the top of the second protective cover (2), and a through hole (19) is provided inside the locking block (18).

6. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 1 is characterized in that: A strap (16) is fixedly connected to the top of the first protective cover (1), a second connecting groove (17) is provided inside the strap (16), and the outer wall of the strap (16) is slidably connected to the inside of the through hole (19).

7. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 5, characterized in that: The locking block (18) is slidably connected to a slider (20) inside, and the bottom of the slider (20) is fixedly connected to a second clamping block (21), and the outer wall of the second clamping block (21) is embedded in the second connecting groove (17).

8. The fire-fighting explosion-proof pressure switch protection mechanism according to claim 5 is characterized in that: A telescopic rod (22) is arranged inside the locking block (18), and a second spring (23) is sleeved on the outer wall of the telescopic rod (22); one end of the telescopic rod (22) and the second spring (23) are fixedly connected inside the locking block (18), and the other end of the telescopic rod (22) and the second spring (23) are fixedly connected to the top of the slider (20).

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