Fire hydrant blank cap with pressure detection indication function
By integrating pressure detection module and indicator light on the fire hydrant muffled cover, the problem that the existing fire hydrant muffled cover cannot judge the internal pressure is solved, and the high-pressure gas is reminded before opening the muffled cover, which improves the safety of use.
Patent Information
- Application Number
- CN202421520901.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-01
AI Technical Summary
The existing fire hydrant cover cannot be judged internal pressure before use, which may cause high-pressure gas to rush out, causing accidental injuries to personnel, and pose a safety hazard.
A fire hydrant muffle cover including a stuffy cover body, a pressure detection module and a pressure indicator lamp are designed. The pressure detection module consists of a parallel array of bumper plates, pressure sensors, pressure transfer blocks and contact balls that are elastically installed on the inner wall of the stuffed cover. The pressure sensor is triggered by extruding the bumper plate and the pressure magnitude is indicated by the pressure indicator light.
Before opening the suffocation cover, remind the internal pressure by changing the color of the pressure indicator to help the user avoid accidental injury and increase the safety of use.
Smart Images
Figure CN222918025U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fire-fighting equipment, in particular to a pressure detection and indication fire hydrant blank cap. Background Art
[0002] The blank cap is a device installed at the water outlet of the fire hydrant for plugging. When the fire hydrant is not opened for a long time, a large amount of gas will accumulate inside, resulting in continuous increase in pressure. At present, the internal pressure of the existing fire hydrant blank cap cannot be judged before use. Therefore, when it is opened, it may cause accidental injury to personnel due to the rush of high-pressure gas, posing a safety hazard. Summary of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a pressure detection and indication fire hydrant blank cap, aiming to solve the technical problem that the internal pressure of the existing fire hydrant blank cap cannot be judged before use, and it may cause accidental injury to personnel due to the rush of high-pressure gas when it is opened, posing a safety hazard.
[0004] The technical solution of the utility model is: a pressure detection and indication fire hydrant blank cap, including a blank cap body, a pressure detection module and a pressure indicator lamp arranged on the blank cap body. The pressure detection module includes a plurality of parallel collision plates elastically installed on the inner wall of the blank cap body, and a pressure sensor corresponding to each collision plate respectively; a pressure transmission block is arranged on one side of the collision plate, the pressure transmission block is elastically installed inside the blank cap body, a contact rolling ball is arranged on the side of the pressure transmission block close to the collision plate, when the pressure transmission block moves under force, it drives the contact rolling ball to move, and the contact rolling ball triggers the corresponding pressure sensor by pressing different collision plates and indicates the pressure magnitude through the pressure indicator lamp.
[0005] Further, in the utility model, each collision plate is installed on the inner wall of the blank cap body through a limit telescopic column and a first spring.
[0006] Further, in the utility model, in the direction from the inner side to the outer side of the blank cap body, one end of each collision plate on the inner side is provided with a guiding slope surface, and one end of the collision plate except the last one on the outer side is provided with a guiding protrusion.
[0007] Further, in the utility model, the slope of the guiding slope surface on the second to the last collision plates is smaller than the slope of the guiding slope surface on the first collision plate, so that the guiding slope surfaces and the guiding protrusions of adjacent two collision plates can better cooperate to guide the rolling of the contact rolling ball.
[0008] Further, in the utility model, one end of the pressure transmission block is slidably connected to the inner wall of the blank cap body, and the other end is connected to the blank cap body through a second spring.
[0009] Further, in the utility model, the pressure indicator lamp is embedded in the outer side surface of the blank cap body.
[0010] The utility model has the following advantages compared with the prior art: when the internal pressure of the fire hydrant blank cap of the utility model is too high, the pressure transfer block will be pressed to move, trigger the corresponding pressure sensor by squeezing the collision plate, and then transmit the signal to the pressure indicator light. The pressure indicator light can remind the size of the internal pressure by changing different colors, helping the user to be reminded before opening the blank cap to avoid accidental injury and increasing the use safety. Brief Description of the Drawings
[0011] Figure 1 is a structural schematic diagram of the utility model;
[0012] Figure 2 is a schematic diagram of the first use state of the utility model;
[0013] Figure 3 is a schematic diagram of the second use state of the utility model;
[0014] Figure 4 is a schematic diagram of the third use state of the utility model.
[0015] Wherein: 1. Blank cap body; 2. Pressure detection module; 3. Pressure indicator light; 4. Collision plate; 4a. Guide slope; 4b. Guide protrusion; 5. Pressure sensor; 6. Pressure transfer block; 7. Contact rolling ball; 8. Limit telescopic column; 9. First spring; 10. Second spring. Detailed Embodiment
[0016] The following makes a specific description of the detailed embodiment of the utility model with reference to the drawings.
[0017] Embodiment:
[0018] Combined with the drawings, a detailed embodiment of a pressure detection and indication fire hydrant blank cap of the utility model is shown. As Figure 1 , it mainly includes a blank cap body 1, a pressure detection module 2 and a pressure indicator light 3 arranged on the blank cap body 1. The pressure indicator light 3 is embedded in the outer side surface of the blank cap body 1 and can change different colors according to the pressure size detected by the pressure detection module 2 to play a reminder role.
[0019] In this embodiment, as Figure 2 , the pressure detection module 2 includes three collision plates 4 arranged side by side and elastically installed on the inner wall of the blank cap body 1, and pressure sensors 5 respectively arranged corresponding to each collision plate 4. Each collision plate 4 is installed on the inner wall of the blank cap body 1 through a limit telescopic column 8 and a first spring 9. When the collision plate 4 is forced to move inward, the limit telescopic column 8 can trigger the pressure sensor 5, and the first spring 9 is compressed by force; when the collision plate 4 is not forced, under the action of the first spring 9, the collision plate 4 can be reset.
[0020] On one side of the striker plate 4, there is a pressure transfer block 6. One end of the pressure transfer block 6 is slidably connected to the inner wall of the blank cover body 1, and the other end is connected to the blank cover body 1 through a second spring 10. On the side of the pressure transfer block 6 close to the striker plate 4, there is a contact ball 7. When the pressure transfer block 6 moves under force, it drives the contact ball 7 to move. The contact ball 7 triggers the corresponding pressure sensor 5 by pressing different striker plates 4 and indicates the pressure magnitude through the pressure indicator light 3.
[0021] In this embodiment, on the inner side end of each striker plate 4 in the direction from the inside to the outside of the blank cover body 1, there is a guiding slope 4a to facilitate guiding the rolling of the contact ball 7. At the same time, on the outer side end of the two striker plates 4 except the last one, there are guiding protrusions 4b, and the guiding protrusions 4b facilitate the reciprocating rolling of the contact ball 7.
[0022] In this embodiment, in the direction from the inside to the outside of the blank cover body 1, the slope of the guiding slope 4a on the second and third striker plates 4 is smaller than the slope of the guiding slope 4a on the first striker plate 4, so that the guiding slopes 4a and the guiding protrusions 4b of adjacent two striker plates 4 can better cooperate to guide the rolling of the contact ball 7 and prevent the contact ball 7 from getting stuck.
[0023] When the present utility model works specifically, when the internal pressure of the fire hydrant blank cover gradually increases, the pressure transfer block 6 is pressed and moves outwards. The contact ball 7 first presses the first striker plate 4 and triggers the first pressure sensor 5, and the pressure indicator light 3 changes to a corresponding color to remind of the internal pressure magnitude, as Figure 2 shown. When the pressure continues to increase, the contact ball 7 rolls over the guiding protrusion 4b of the first striker plate 4 and squeezes the second striker plate 4 along the guiding slope 4a of the second striker plate 4, triggering the second pressure sensor 5, and the pressure indicator light 3 immediately changes to a different color, as Figure 3 shown. Similarly, the triggering of the third striker plate 4 and the change of the pressure indicator light 3 are the same as those of the second striker plate 4, which will not be elaborated here.
[0024] Certainly, the above embodiments are only for explaining the technical concept and features of the present utility model, and the purpose is to enable those who are familiar with this technology to understand the content of the present utility model and implement it accordingly, and cannot be used to limit the protection scope of the present utility model. All modifications made according to the spirit essence of the main technical solution of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A pressure detection indicating fire hydrant cover, characterized in that: The invention comprises a cover body (1), a pressure detection module (2) and a pressure indicator light (3) arranged on the cover body (1); the pressure detection module (2) comprises a plurality of parallel-arranged bumper plates (4) elastically mounted on the inner wall of the cover body (1), and a pressure sensor (5) respectively arranged corresponding to each bumper plate (4); a pressure transmission block (6) is arranged on one side of the bumper plate (4); the pressure transmission block (6) is elastically mounted in the cover body (1); a contact ball (7) is arranged on the side of the pressure transmission block (6) close to the bumper plate (4); when the pressure transmission block (6) is moved by force, the contact ball (7) is driven to move; the contact ball (7) triggers the corresponding pressure sensor (5) by pressing different bumper plates (4) and indicates the pressure magnitude through the pressure indicator light (3).
2. A pressure detection indicating fire hydrant cover according to claim 1, characterized in that: Each of the bumper plates (4) is mounted on the inner wall of the cover body (1) via a limiting telescopic column (8) and a first spring (9).
3. The pressure detection indicating fire hydrant cover according to claim 1, characterized in that: In the direction from the inside to the outside of the cover body (1), a guide slope (4a) is provided at the inner end of each bumper plate (4), and a guide protrusion (4b) is provided at the outer end of each bumper plate (4) except the last one.
4. A pressure detection indicating fire hydrant cover according to claim 3, characterized in that: The slope of the guide slope (4a) on the second to last bumper plates (4) is smaller than the slope of the guide slope (4a) on the first bumper plate (4), so that the guide slopes (4a) and the guide protrusions (4b) of two adjacent bumper plates (4) can better cooperate to guide the contact ball (7) to roll.
5. The pressure detection indicating fire hydrant cover according to claim 1, characterized in that: One end of the pressure transmission block (6) is slidably connected to the inner wall of the cover body (1), and the other end is connected to the cover body (1) via a second spring (10).
6. The pressure detection indicating fire hydrant cover according to claim 1, characterized in that: The pressure indicator light (3) is embedded in the outer side surface of the cover body (1).