Anti-blocking device for pressure test port of intelligent fire hydrant

Abstract

The utility model discloses an intelligent fire hydrant pressure test port anti-blocking device which comprises a valve clack (1) used for controlling water flow circulation in a valve body, a pressure sensor (2) used for monitoring water pressure and a filter cartridge (3), the valve clack (1) is horizontally arranged in the valve body, the top of the valve clack (1) is provided with a pressure test port used for installing the pressure sensor (2), and the filter cartridge (3) is arranged in the valve body. The filter cartridge (3) is detachably connected with the bottom, facing a water source, of the valve clack (1), a water flow channel is formed in the valve clack (1) and communicated with the filter cartridge (3) and the pressure testing opening, filter holes (31) are annularly distributed in the side wall of the filter cartridge (3) so as to filter water flow entering the water flow channel, impurities are prevented from blocking the water flow channel, and the filter cartridge (3) is provided with a water inlet and a water outlet. Therefore, the pressure test port can be prevented from being blocked, and the accuracy of product pressure signal acquisition is ensured.

Description

Technical Field

[0001] The utility model relates to the field of fire-fighting equipment, in particular to an anti-blocking device for a pressure test port of an intelligent fire hydrant. Background Art

[0002] During the product pressure detection of the existing intelligent fire hydrants, impurities in the pipeline are very easy to block the pressure acquisition hole of the fire hydrant during the installation process. Because the existing pressure acquisition scheme of the intelligent fire hydrant is to install a pressure sensor at the exact center of the valve flap of the fire hydrant, and the pressure acquisition hole of the pressure sensor is connected to the valve flap by a threaded connection hole structure. Water flow enters the pressure acquisition hole of the pressure sensor from the threaded connection hole. If there are impurities in the water flow, they will block the threaded connection hole and the sensor pressure acquisition hole after entering the threaded connection hole, resulting in inaccurate acquisition of the product pressure signal or inability to acquire the pipeline pressure. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide an anti-blocking device for a pressure test port of an intelligent fire hydrant in view of the above-mentioned defect that the pressure acquisition hole of the sensor in the prior art is easy to be blocked, resulting in inaccurate acquisition of the product pressure signal or inability to acquire the pipeline pressure.

[0004] The technical solution adopted by the utility model to solve its technical problem is to construct an anti-blocking device for a pressure test port of an intelligent fire hydrant, which includes a valve flap for controlling the water flow in the valve body, a pressure sensor for monitoring the water pressure, and a filter cylinder. The valve flap is horizontally arranged in the valve body. A pressure test port for installing the pressure sensor is arranged at the top of the valve flap. The filter cylinder is detachably connected to the bottom of the valve flap facing the water source. A water flow channel is opened inside the valve flap, and the water flow channel communicates the filter cylinder and the pressure test port. Filter holes are distributed around the side wall of the filter cylinder to filter the water flow entering the water flow channel and prevent impurities from blocking the water flow channel.

[0005] Further, in the anti-blocking device for a pressure test port of the intelligent fire hydrant of the utility model, a bent pipe for introducing water source is connected to the bottom of the valve body, and the valve flap is located at the narrow mouth position of the valve body close to the bent pipe; the filter holes are densely distributed on the peripheral side of the filter cylinder, the filter cylinder extends into the bent pipe, and the axial direction of the filter cylinder is parallel to the axial direction of the valve flap, and part of the side wall of the filter cylinder is always free from direct impact of the water flow.

[0006] Further, in the anti-blocking device for a pressure test port of the intelligent fire hydrant of the utility model, the filter cylinder is connected to the valve flap through a drainage member;

[0007] An installation hole for installing the drainage member is opened at the bottom of the valve flap, and the installation hole extends along the axial direction of the valve flap into the valve flap interior;

[0008] A water flow guiding hole is formed at the bottom of the drainage member. The water flow guiding hole extends into the drainage member and is connected to the water flow channel. A drainage port for discharging the filtered water flow is formed at the top of the filter cartridge. The top of the filter cartridge is connected to the bottom of the drainage member, and the drainage port covers the water flow guiding hole.

[0009] Further, in the anti-blocking device for the pressure test port of the intelligent fire hydrant according to the present invention, the aperture of the filtering hole is smaller than the aperture of the water flow guiding hole, the aperture of the water flow guiding hole is smaller than the aperture of the water flow channel, and the aperture of the drainage port is larger than the aperture of the water flow guiding hole and the aperture of the water flow channel.

[0010] Further, in the anti-blocking device for the pressure test port of the intelligent fire hydrant according to the present invention, the water flow guiding hole includes a first guiding hole that extends from the bottom of the drainage member along the axial direction of the valve flap into the drainage member, and a second guiding hole that is connected to the first guiding hole and extends along the radial direction of the valve flap to the side wall of the drainage member to communicate with the water flow channel.

[0011] Further, in the anti-blocking device for the pressure test port of the intelligent fire hydrant according to the present invention, the pressure test port is eccentrically arranged at the top of the valve flap and extends along the axial direction of the valve flap;

[0012] The water flow channel includes a first drainage channel and a second drainage channel. One end of the first drainage channel is connected to the water flow guiding hole and extends along the radial direction of the valve flap. The first drainage channel is located below the pressure test port. The second drainage channel extends along the axial direction of the valve flap and is connected between the pressure test port and the first drainage channel.

[0013] Further, in the anti-blocking device for the pressure test port of the intelligent fire hydrant according to the present invention, the other end of the first drainage channel extends to penetrate through the circumferential side of the valve flap and is connected to a screw for blocking. The second drainage channel is connected between the two ends of the first drainage channel.

[0014] Further, in the anti-blocking device for the pressure test port of the intelligent fire hydrant according to the present invention, the installation hole is a bolt hole; the drainage member is a bolt, the screw rod of which is matched with the bolt hole, and the head of which is in interference fit with the top of the filter cartridge.

[0015] Further, in the anti-blocking device for the pressure test port of the intelligent fire hydrant according to the present invention, the filter cartridge is in a cylindrical shape with an open top to form a drainage port and a plurality of through holes are formed at the bottom. The top edge of the filter cartridge extends along the radial direction to form an annular flange, and an installation groove for interference fit with the annular flange is formed at the head of the bolt.

[0016] Furthermore, in the anti-blocking device for the intelligent fire hydrant pressure test port of the present utility model, the valve flap includes a valve flap body and a sealing plate covering the bottom of the valve flap body. The mounting hole penetrates through the sealing plate and extends into the valve flap body, and the water flow channel is located within the valve flap body.

[0017] The anti-blocking device for the intelligent fire hydrant pressure test port of the present utility model has the following beneficial effects: In the present utility model, a pressure test is set at the top of the valve flap to install a pressure sensor, a filter cylinder is detachably connected to the bottom of the valve flap, a water flow channel is provided inside the valve flap to connect the filter cylinder and the pressure measuring channel of the pressure sensor, and filter holes are evenly distributed on the side wall of the filter cylinder to filter the water flowing into the water flow channel, preventing impurities from blocking the water flow channel, thereby preventing the pressure test port from being blocked and ensuring the accuracy of product pressure signal acquisition. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings:

[0019] Figure 1 is a schematic structural diagram of the anti-blocking device for the intelligent fire hydrant pressure test port of the present utility model;

[0020] Figure 2 is a cross-sectional view of the anti-blocking device for the intelligent fire hydrant pressure test port of the present utility model;

[0021] Figure 3 is a schematic diagram of the self-cleaning principle of the filter cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] To facilitate the understanding of the present utility model, the following will describe the present utility model more comprehensively with reference to the relevant drawings. The typical embodiments of the present utility model are given in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive. It should be understood that the embodiments of the present utility model and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. Without conflict, the technical features in the embodiments of the present utility model and the embodiments can be combined with each other.

[0023] Reference Figure 1-2, the anti-blocking device for the intelligent fire hydrant pressure test port in this embodiment includes a valve flap 1 for controlling the water flow in the valve body, a pressure sensor 2 for monitoring the water pressure, and a filter cartridge 3.

[0024] The valve body is a well-known structure of the fire hydrant. Its top is a connecting bolt body, and a valve rod is installed on the bolt body. The valve flap 1 is horizontally arranged in the valve body, that is, the radial direction of the valve flap 1 is horizontal and the axial direction is vertical. The valve rod is connected to the connecting head 110 at the center of the top of the valve flap 1. The bottom of the valve body is connected to a bent pipe, and the bent pipe is used to introduce the fire water source. A narrow mouth that is wider at the top and narrower at the bottom is formed at the position of the valve body close to the bent pipe, and the valve flap 1 is located at this narrow mouth position. Under normal circumstances, the valve rod controls the valve flap 1 at a height that blocks the narrow mouth, and the water flow cannot pass through the narrow mouth and enter the bolt body; when the fire water needs to be used, the valve rod pulls up the valve flap 1, so that the water flow can enter the valve body and the bolt body from the narrow mouth.

[0025] In this embodiment, a pressure test port for installing the pressure sensor 2 is provided at the top of the valve flap 1. The filter cartridge 3 is detachably connected to the bottom of the valve flap 1 facing the water source. A water flow channel is opened inside the valve flap 1, and the water flow channel communicates the filter cartridge 3 and the pressure test port. Filter holes 31 are distributed around the side wall of the filter cartridge 3 to filter the water flow entering the water flow channel and prevent impurities from blocking the water flow channel. As Figure 2 The dotted arrow in shows the path of the water flow reaching the pressure test port. The present utility model filters the water flow before it enters this path to ensure that this path is not blocked, and thus the pressure test port will not be blocked.

[0026] Specifically, the valve flap 1 includes a valve flap body 11 located above and a sealing plate 12 covering the bottom of the valve flap body 11. The filter cartridge 3 is connected to the valve flap 1 through a drainage member 4.

[0027] The pressure test port is eccentrically arranged at the top of the valve flap body 11, and the pressure test port extends along the axial direction of the valve flap 1. Therefore, the pressure sensor 2 is vertically and eccentrically installed on the valve flap body 11. This pressure test port is specifically a threaded connection hole, and the pressure sensor 2 is connected to it by means of threaded cooperation.

[0028] The water flow channel is located within the valve flap body 11. Specifically, the water flow channel includes a first drainage channel 111 and a second drainage channel 112. The inlet end of the first drainage channel 111 is connected to the water flow guiding hole 41 and extends along the radial direction of the valve flap 1. The other end of the first drainage channel 111 extends through the circumferential side of the valve flap 1 and is connected to the screw 6 for plugging. The first drainage channel 111 is located below the pressure test port. The second drainage channel 112 extends along the axial direction of the valve flap 1 and is connected between the pressure test port and the first drainage channel 111. The connection position of the second drainage channel 112 and the first drainage channel 111 is between the two ends of the first drainage channel 111.

[0029] A mounting hole for mounting the drainage member 4 is provided at the center of the bottom of the sealing plate 12. The mounting hole penetrates the sealing plate 12 along the axial direction of the sealing plate 12 and extends into the valve flap body 11. Specifically, the mounting hole is a bolt hole, and the drainage member 4 is a bolt with its head facing down and its screw rod facing up. The screw rod of the bolt is matched with the bolt hole, that is, the screw rod passes through the sealing plate 12 and extends into the valve flap body 11. The head of the bolt is in interference fit with the top of the filter cartridge 3.

[0030] A water flow guiding hole 41 is provided at the center of the bottom of the drainage member 4 (i.e., the center of the head of the bolt). The water flow guiding hole 41 extends into the screw rod of the drainage member 4 and is connected to the water flow channel. Specifically, the water flow guiding hole 41 includes a first guiding hole 411 that starts from the center of the bottom of the head of the drainage member 4 and extends along the axial direction of the valve flap 1 into the screw rod of the drainage member 4, and a second guiding hole 412 that is connected to the first guiding hole 411 and extends along the radial direction of the valve flap 1 to the side wall of the screw rod of the drainage member 4 to communicate with the water flow channel. That is, the first guiding hole 411 extends vertically, and the second guiding hole 412 extends horizontally. The top of the filter cartridge 3 is open to form a drainage port for discharging the filtered water flow. The top of the filter cartridge 3 is connected to the bottom of the drainage member 4, and the drainage port covers the inlet of the first guiding hole 411. The second guiding hole 412 is aligned with the inlet end of the first drainage channel 111.

[0031] Among them, the aperture of the drainage port at the top of the filter cartridge 3 is the largest, which is much larger than the apertures of the first guiding hole 411, the second guiding hole 412, the first drainage channel 111, and the second drainage channel 112. The apertures of the first guiding hole 411 and the second guiding hole 412 are the same and smaller than the apertures of the first drainage channel 111 and the second drainage channel 112. The aperture of the filter hole 31 is the smallest, much smaller than the apertures of the first guiding hole 411 and the second guiding hole 412.

[0032] The filter cartridge 3 is cylindrical with an open top forming a drain outlet and a plurality of through holes opened at the bottom. The filter holes 31 are evenly and densely distributed on the circumferential side of the filter cartridge 3. The top edge of the filter cartridge 3 extends radially to form an annular flange, and the head of the bolt is provided with a mounting groove for interference fit with the annular flange. After the top of the filter cartridge 3 is assembled into the mounting groove at the head of the bolt, it will extend into the elbow pipe. Since the axial direction of the filter cartridge 3 is parallel to the axial direction of the valve flap 1 and their central axes coincide, and the elbow pipe is bent at 90°, the water flow direction from the elbow pipe is perpendicular to the filter cartridge 3, as Figure 3 shown. Therefore, part of the side wall of the filter cartridge 3 is always below the water flow and is not directly impacted by the water flow from the elbow pipe. The area below the water flow will always be washed and cleaned, so the filter cartridge 3 will not be completely wrapped and blocked, achieving the effect of self-cleaning, and thus can be used for a long time.

[0033] In summary, the anti-blocking device for the intelligent fire hydrant pressure test port of the present utility model has the following beneficial effects: In the present utility model, a pressure sensor is installed by setting a pressure test at the top of the valve flap. A filter cartridge is detachably connected to the bottom of the valve flap. A water flow channel is opened inside the valve flap to connect the filter cartridge and the pressure measuring channel of the pressure sensor. Filter holes are distributed around the side wall of the filter cartridge to filter the water flow entering the water flow channel, preventing impurities from blocking the water flow channel, thereby preventing the pressure test port from being blocked and ensuring the accuracy of product pressure signal acquisition.

[0034] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal" and similar expressions used herein are only for the purpose of illustration.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0036] The ordinal terms such as "first", "second" used in this specification can be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the claims of the present invention, the first component can be named the second component, and similarly, the second component can also be named the first component.

[0037] The embodiments of the present utility model have been described above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present utility model, those of ordinary skill in the art can also make many forms without departing from the purpose of the present utility model and the scope protected by the claims. All of these fall within the protection scope of the present utility model.

Claims

1. A smart fire hydrant pressure test port anti-blocking device, characterized in that: The invention comprises a valve flap (1) for controlling the flow of water in a valve body, a pressure sensor (2) for monitoring water pressure, and a filter cartridge (3), wherein the valve flap (1) is horizontally arranged in the valve body, a pressure test port for installing the pressure sensor (2) is arranged at the top of the valve flap (1), the filter cartridge (3) is detachably connected to the bottom of the valve flap (1) facing the water source, a water flow channel is provided inside the valve flap (1), the water flow channel connects the filter cartridge (3) and the pressure test port, and filter holes (31) are arranged on the side wall of the filter cartridge (3) to filter the water flow entering the water flow channel to prevent impurities from clogging the water flow channel.

2. The intelligent fire hydrant pressure test port anti-blocking device according to claim 1 is characterized in that: The filter cartridge (3) is connected to the valve flap (1) via a flow guide member (4); A mounting hole for mounting the flow guide member (4) is provided at the bottom of the valve flap (1), and the mounting hole extends along the axial direction of the valve flap (1) to the interior of the valve flap (1); A water flow conducting hole (41) is provided at the bottom of the flow guiding member (4), the water flow conducting hole (41) extends into the interior of the flow guiding member (4) and is connected to the water flow channel; a drain port for discharging filtered water is provided at the top of the filter cartridge (3), the top of the filter cartridge (3) is connected to the bottom of the flow guiding member (4), and the drain port covers the water flow conducting hole (41).

3. The intelligent fire hydrant pressure test port anti-blocking device according to claim 2 is characterized in that: The pore size of the filtering hole (31) is smaller than the pore size of the water flow conducting hole (41), the pore size of the water flow conducting hole (41) is smaller than the pore size of the water flow channel, and the pore size of the drainage port is larger than the pore size of the water flow conducting hole (41) and the pore size of the water flow channel.

4. The intelligent fire hydrant pressure test port anti-blocking device according to claim 2 is characterized in that: The water flow conducting hole (41) comprises a first conducting hole (411) extending from the bottom of the flow guiding member (4) along the axial direction of the valve flap (1) to the inside of the flow guiding member (4), and a second conducting hole (412) connected to the first conducting hole (411) and extending along the radial direction of the valve flap (1) to the side wall of the flow guiding member (4) so ​​as to communicate with the water flow channel.

5. The intelligent fire hydrant pressure test port anti-blocking device according to claim 2 is characterized in that: The pressure test port is eccentrically arranged at the top of the valve flap (1), and the pressure test port extends along the axial direction of the valve flap (1); The water flow channel comprises a first drainage channel (111) and a second drainage channel (112); one end of the first drainage channel (111) is connected to the water flow conducting hole (41) and extends in the radial direction of the valve flap (1); the first drainage channel (111) is located below the pressure test port; and the second drainage channel (112) extends in the axial direction of the valve flap (1) and is connected between the pressure test port and the first drainage channel (111).

6. The intelligent fire hydrant pressure test port anti-blocking device according to claim 5 is characterized in that: The other end of the first drainage channel (111) extends to the peripheral side of the valve flap (1) and is connected to the screw (6) to achieve blocking, and the second drainage channel (112) is connected between the two ends of the first drainage channel (111).

7. The intelligent fire hydrant pressure test port anti-blocking device according to claim 2 is characterized in that: The mounting hole is a bolt hole; the flow guide member (4) is a bolt, the screw rod of which cooperates with the bolt hole, and the head of which cooperates with the top of the filter cartridge (3) in an interference fit.

8. The intelligent fire hydrant pressure test port anti-blocking device according to claim 7 is characterized in that: The filter cartridge (3) is cylindrical in shape and has an open top to form a drainage port and a plurality of through holes at the bottom. The top edge of the filter cartridge (3) extends in a radial direction to form an annular flange, and the head of the bolt has an installation groove that is rigidly matched with the annular flange.

9. The intelligent fire hydrant pressure test port anti-blocking device according to claim 2 is characterized in that: The valve flap (1) comprises a valve flap body (11) and a sealing plate (12) covering the bottom of the valve flap body (11); the mounting hole passes through the sealing plate (12) and extends into the valve flap body (11); and the water flow channel is located in the valve flap body (11).

10. The intelligent fire hydrant pressure test port anti-blocking device according to claim 1, characterized in that: The bottom of the valve body is connected to a curved pipe for introducing water, and the valve flap (1) is located at the gorge of the valve body close to the curved pipe; The filter holes (31) are densely distributed around the filter cartridge (3), the filter cartridge (3) extends into the bent pipe, and the axial direction of the filter cartridge (3) is parallel to the axial direction of the valve flap (1), and a portion of the side wall of the filter cartridge (3) is always protected from direct impact by the water flow.

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