Stainless steel water flow indicator

Abstract

The utility model relates to the technical field of fire fighting equipment, in particular to a stainless steel water flow indicator which comprises a detection part and two connectors. The detection part is provided with an indicator body, a connecting pipe and a swing piece, the indicator body is arranged on the connecting pipe, and the swing piece is arranged on the inner side of the connecting pipe and connected with the indicator body; the two connectors are respectively arranged at the water inlet end and the water outlet end of the connecting pipe; according to the water flow indicator, when the water flow indicator faces pipelines of different sizes, the water flow indicator can be connected with the corresponding pipelines by replacing the connectors, and the application range of the water flow indicator can be widened through the design.

Description

Technical Field

[0001] The utility model relates to the technical field of fire fighting equipment, and specifically relates to a stainless steel water flow indicator. Background Art

[0002] The water flow indicator is an alarm device used in the automatic sprinkler fire extinguishing system to convert the water flow signal into an electrical signal. It uses the flow of water in the pipe network to push the sensor component and trigger the micro switch, thereby converting the water flow signal into an electrical signal and feeding it back to the fire control center. It can be used to detect the operation of the automatic sprinkler fire extinguishing system and determine the area where the fire occurs.

[0003] In the prior art, for example, a Chinese patent discloses a water flow indicator with an alarm function, with announcement number CN214893497U. The water flow indicator rotates in the lock head according to the scale on the surface of the calibration panel. When the water flow indicator rotates, the main arm is driven by the linkage main rod to rotate. The main arm pushes the detection blade in the middle. When the detection blade is pushed to the specified stroke, it is determined whether to trigger the alarm to avoid consuming a large amount of water. The flange specifications of the water flow indicator are fixed, that is, the size of the flange of the water flow indicator needs to be compatible with the size of the water pipe in the pipe network. In actual situations, the specifications of the water pipes in the pipe network are different. In the face of pipelines of different sizes, water flow indicators of different specifications must be replaced to meet the requirements. This makes the application range of the existing water flow indicators not high. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a stainless steel water flow indicator, which can improve the application range of the water flow indicator.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel water flow indicator, comprising a detection part and two connecting heads; the detection part has an indicator body, a connecting pipe and a swinging piece, the indicator body is arranged on the connecting pipe, the swinging piece is arranged on the inner side of the connecting pipe and connected to the indicator body; the two connecting heads are respectively arranged at the water inlet end and the water outlet end of the connecting pipe; the two connecting heads are both detachably connected to the connecting pipe.

[0006] Preferably, the connecting head comprises a flange pipe and a flange plate; the flange plate is coaxially fixed to the flange pipe; after assembly, the connecting pipe is at least partially embedded in the flange pipe, and the flange plate is away from the connecting pipe.

[0007] Preferably, the inner diameter of the flange pipe is the same as the inner diameter of the connecting pipe.

[0008] Preferably, it also includes tension bolts; the connecting head also includes a connecting plate; the connecting plate is coaxially fixed to the flange pipe; after assembly, the connecting plates located on both sides of the connecting pipe are fixed by tension bolts.

[0009] Preferably, the flange pipe is connected to the connecting pipe via threads.

[0010] Preferably, it also includes two sealing rings; the sealing rings are arranged in a one-to-one correspondence with the connecting heads; the sealing rings are arranged between the flange pipe and the connecting pipe.

[0011] Preferably, an annular groove is provided on the inner circumference of the flange pipe; and the sealing ring is arranged in the annular groove.

[0012] Preferably, the connector is an integrated structure.

[0013] Preferably, there are a plurality of tension bolts, and the plurality of tension bolts are evenly distributed around the axis of the connecting pipe.

[0014] Compared with the prior art, the beneficial effect of the utility model is that by detachably arranging connecting heads for connecting pipelines on both sides of the water flow indicator detection part, the connecting heads serve as replaceable components. When facing pipelines of different sizes, the connecting heads can be replaced to connect to the corresponding pipelines. This design can improve the application range of the water flow indicator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the water flow indicator of the utility model;

[0016] Figure 2 This is a schematic diagram of the connector structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the left side structure of the water flow indicator of the utility model;

[0018] Figure 4 For the utility model Figure 3 AA section diagram of the mid-water flow indicator;

[0019] Figure 5 For the utility model Figure 3 Schematic diagram of the cross-sectional structure of the mid-water flow indicator along the BB axis.

[0020] In the figure: 1 detection part, 2 first connecting head, 3 second connecting head, 4 tension bolts, 5 sealing ring, 11 indicator body, 12 base, 13 connecting pipe, 14 swing plate, 21 connecting plate, 22 flange pipe, 23 flange plate, 24 annular groove. DETAILED DESCRIPTION

[0021] The following describes the specific implementation of the utility model in detail in conjunction with the accompanying drawings so that those skilled in the art can more clearly understand how to practice the utility model. Although the utility model is described in conjunction with its preferred specific embodiments, these embodiments are only illustrative, rather than limiting the scope of the utility model.

[0022] Specific embodiment 1: Please refer to Figure 1-5 A stainless steel water flow indicator comprises: a detection part 1, a first connecting head 2, a second connecting head 3, two tension bolts 4 and two sealing rings 5, wherein the detection part 1 is fixed between the first connecting head 2 and the second connecting head 3 by the tension bolts 4, wherein the first connecting head 2 and the second connecting head 3 have the same structure, when in use, the detection part 1 is installed on the pipeline by the first connecting head 2 and the second connecting head 3, in addition, the specification of the first connecting head 2 is changeable, and the first connecting head 2 is detachably connected to the detection part 1 as a replaceable component, when facing pipelines of different sizes, the corresponding pipeline can be connected by replacing the connecting head, and this design can improve the application range of the water flow indicator.

[0023] Specifically, the detection part 1 includes an indicator body 11, a base 12, a connecting tube 13 and a swinging piece 14. The base 12 is a tubular structure. The base 12 is fixedly arranged on the outer periphery of the connecting tube 13 by welding. At the same time, the inner space of the base 12 is communicated with the inner space of the connecting tube 13. The indicator body 11 is fixedly arranged on the base 12. The swinging piece 14 is arranged on the inner side of the connecting tube 13 and connected to the indicator body 11. The indicator body 11 is provided with sensing components such as a travel switch. When in use, the indicator body 11 is connected to the control center of the peripheral device through an electrical signal. When water flows through the connecting tube 13, the water flows and hits the swinging piece 14 to cause the swinging piece 14 to deviate. The swinging piece 14 pushes the travel switch inside the indicator body 11. The travel switch transmits an electrical signal to the control center to alarm its area.

[0024] Since the first connector 2 and the second connector 3 have the same structure, the first connector 2 is taken as an example for description: the first connector 2 is composed of a connecting plate 21, a flange pipe 22 and a flange 23, and the connecting plate 21 and the flange 23 are connected by the flange pipe 22, so that the first connector 2 becomes an integrated structure; in this embodiment, the first connector 2 is a replaceable component, and the size of the flange 23 is not limited. Therefore, in actual use, the size of the first connector 2, that is, the size of the flange 23, can be adjusted accordingly according to the size of the pipeline to adapt to the installation;

[0025] Furthermore, an annular groove 24 is provided on the inner circumference of the flange pipe 22, and the sealing ring 5 is installed in the annular groove 24; after assembly, the water inlet end of the connecting pipe 13 is at least partially embedded in the flange pipe of the first connecting head 2, and the water outlet end of the connecting pipe 13 is at least partially embedded in the flange pipe of the second connecting head 3, and the inner diameter of the flange pipe 22 is the same as the inner diameter of the connecting pipe 13 to make the interior of the water flow indicator smoother; after assembly, the flange plate of the first connecting head 2 and the flange plate of the second connecting head 3 are both far away from the detection part 1, while the connecting plate of the first connecting head 2 and the connecting plate of the second connecting head 3 are both far close to the detection part 1, and the connecting plate of the first connecting head 2 and the connecting plate of the second connecting head 3 are connected and fixed by tension bolts 4; the two tension bolts 4 are evenly distributed around the axis of the connecting pipe 13, and with the tightening of the tension bolts 4, the structure of the water flow indicator is more compact.

[0026] Through this technical solution, by detachably providing connecting heads for connecting pipelines on both sides of the water flow indicator detection part, the connecting heads serve as replaceable components. When faced with pipelines of different sizes, the connecting heads can be replaced to connect to the corresponding pipelines. This design can improve the application range of the water flow indicator.

[0027] Embodiment 2: Different from Embodiment 1, when the first connector 2 and the second connector 3 are installed at the two ends of the connecting pipe 13, they do not need to be connected and fixed by the tension bolts 4. For example, external threads can be provided on the outer periphery of both ends of the connecting pipe 13, and internal threads can be provided on the inner periphery of the flange pipe at the corresponding end. The external threads match the internal threads. The first connector 2 and the second connector 3 can also be fixedly installed at the two ends of the connecting pipe 13 by threaded connection. Compared with Embodiment 1, the advantage of such a setting is that it simplifies the structure of the water flow indicator, reduces the production cost, and also improves the assembly efficiency of the water flow indicator.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stainless steel water flow indicator, characterized in that: The invention comprises a detection part (1) and two connecting heads; the detection part (1) comprises an indicator body (11), a connecting pipe (13) and a swinging piece (14); the indicator body (11) is arranged on the connecting pipe (13); the swinging piece (14) is arranged on the inner side of the connecting pipe (13) and connected to the indicator body (11); the two connecting heads are respectively arranged at the water inlet end and the water outlet end of the connecting pipe (13); and the two connecting heads are detachably connected to the connecting pipe (13).

2. A stainless steel water flow indicator according to claim 1, characterized in that: The connecting head comprises a flange pipe (22) and a flange plate (23); the flange plate (23) is coaxially fixedly connected to the flange pipe (22); after assembly, the connecting pipe (13) is at least partially embedded in the flange pipe (22), and the flange plate (23) is away from the connecting pipe (13).

3. A stainless steel water flow indicator according to claim 2, characterized in that: The inner diameter of the flange pipe (22) is the same as the inner diameter of the connecting pipe (13).

4. A stainless steel water flow indicator according to claim 2, characterized in that: It also includes tension bolts (4); the connector also includes a connection plate (21); the connection plate (21) is coaxially fixedly connected to the flange pipe (22); after assembly, the connection plates (21) located on both sides of the connection pipe (13) are fixedly connected by the tension bolts (4).

5. A stainless steel water flow indicator according to claim 2, characterized in that: The flange pipe (22) is connected to the connecting pipe (13) via threads.

6. A stainless steel water flow indicator according to claim 1, characterized in that: It also includes two sealing rings (5); the sealing rings (5) are arranged in a one-to-one correspondence with the connecting heads; the sealing rings (5) are arranged between the flange pipe (22) and the connecting pipe (13).

7. A stainless steel water flow indicator according to claim 6, characterized in that: An annular groove (24) is formed on the inner circumference of the flange pipe (22); the sealing ring (5) is arranged in the annular groove (24).

8. A stainless steel water flow indicator according to claim 1 or 4, characterized in that: The connector is an integrated structure.

9. A stainless steel water flow indicator according to claim 4, characterized in that: A plurality of the tension bolts (4) are provided; the plurality of tension bolts (4) are evenly distributed around the axis of the connecting pipe (13).

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