Saddle water flow indicator

Abstract

The utility model belongs to the field of fire fighting equipment, and provides a saddle water flow indicator. Comprising a body, a swing assembly and a microswitch. Wherein the swing assembly comprises a swing shaft hinged to the body, blades and an eccentric block, the blades and the eccentric block are connected to the two ends of the swing shaft respectively, the swing shaft is sleeved with the eccentric block, the eccentric block and the swing shaft are eccentrically arranged, and friction damping for limiting the eccentric block to rotate around the central axis of the swing shaft within a certain range is formed between the eccentric block and the swing shaft; the microswitch is arranged on the swing path of the swing shaft and is contacted by the eccentric block in an abutting mode.

Description

Technical Field

[0001] The present application belongs to the field of fire fighting equipment, and more specifically, to a saddle water flow indicator. Background Art

[0002] As an important infrastructure for fire prevention and control, one of the key components of the fire protection pipe system is the water flow indicator. The main function of this type of equipment is to monitor the water flow in the pipe in real time. Once a fire or other emergency occurs, it can quickly convert the water flow signal into an electrical signal, thereby triggering the alarm system or starting the corresponding fire protection equipment. Since fire protection pipe systems in different scenarios often require water flow indicators with different detection accuracy, and traditional water flow indicators are usually fixed in water flow detection accuracy due to structural design limitations, they cannot meet market needs well. Therefore, it is necessary to solve the above technical problems. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a saddle water flow indicator to solve the technical problem of fixed detection accuracy of water flow indicators in the prior art.

[0004] To achieve the above purpose, the technical solution adopted in this application is: to provide a saddle water flow indicator, including:

[0005] ontology;

[0006] A swing assembly, comprising a swing shaft hinged on the body and blades and eccentric blocks respectively connected to both ends of the swing shaft, wherein the eccentric block is sleeved on the swing shaft and eccentrically arranged on the swing shaft, and a friction damping is formed between the eccentric block and the swing shaft to limit the rotation of the eccentric block around the central axis of the swing shaft within a certain range;

[0007] A micro switch is arranged on the swing path of the swing shaft and is triggered by the eccentric block.

[0008] Optionally, the eccentric block is made of rubber material.

[0009] Optionally, the blade is detachably connected to the swing shaft.

[0010] Optionally, the swing assembly further comprises a fastener that crosses the blade and the swing shaft, and the fastener is elastically opened in holes in the blade and the swing shaft through which the fastener passes.

[0011] Optionally, the swing shaft is disposed on the body, and the swing assembly further comprises a sealing member which is sleeved on the swing shaft and seals the swing shaft and the body;

[0012] The seal forms a first sealing portion, a second sealing portion and a third sealing portion which are sequentially distributed along the radial direction of the swing shaft, and the thickness of the first sealing portion and the third sealing portion in the axial direction of the swing shaft are both greater than the thickness of the second sealing portion in the axial direction of the swing shaft.

[0013] Optionally, the seal is sealingly sleeved on the swing shaft via the first sealing portion, and the thickness of the first sealing portion in the axial direction of the swing shaft is greater than the thickness of the third sealing portion in the axial direction of the swing shaft.

[0014] Optionally, the saddle water flow indicator further comprises an outer cover detachably connected to the body, the outer cover cooperates with the body to form a cavity for accommodating the micro switch;

[0015] The main body is provided with a wiring hole for the micro switch to connect to an external working circuit.

[0016] The beneficial effect of the saddle water flow indicator provided by the present application is that: compared with the prior art, in the saddle water flow indicator provided by the present application, the swing shaft hinged on the body can swing relative to the body during the process of water flow impacting the blades and drive the eccentric block connected to the swing shaft to abut against the micro switch to trigger the micro switch. Since the eccentric block and the swing shaft are eccentrically arranged and a friction damping is formed between the two that can limit the rotation of the eccentric block around the central axis of the swing shaft within a certain range, the friction damping between the eccentric block and the swing shaft can keep the eccentric block in a stable relative position relationship with the swing shaft when there is no external force adjustment, and artificially controlling the rotation of the eccentric block around the swing shaft can adjust the distance between the swing block and the micro switch and realize the adjustment of the detection accuracy of the saddle water flow indicator in the present application, which has a flexibility of use far superior to the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 An exploded view of the overall structure of the saddle water flow indicator provided in an embodiment of the present application;

[0019] Figure 2 A front view of the overall structure of the saddle water flow indicator provided in the embodiment of the present application;

[0020] Figure 3 For along Figure 2 The cross-sectional structure diagram along the AA line;

[0021] Figure 4 for Figure 3 Enlarged view of the structure at point B in the middle.

[0022] Among them, the figure marks in the figure are: 101, main body; 102, swing shaft; 103, blade; 104, eccentric block; 105, micro switch; 106, fastener; 107, seal; 171, first sealing part; 172, second sealing part; 173, third sealing part; 108, outer cover; 109, wiring hole. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0025] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Please also read Figures 1 to 4 Now, a saddle water flow indicator provided by the embodiment of the present application is described. The saddle water flow indicator comprises a body 101, a swing component and a micro switch 105. Among them:

[0028] The swing assembly includes a swing shaft 102 hinged on the body 101, and blades 103 and eccentric blocks 104 respectively connected to both ends of the swing shaft 102. The eccentric block 104 is sleeved on the swing shaft 102 and eccentrically arranged with the swing shaft 102. A friction damping is formed between the eccentric block 104 and the swing shaft 102 to limit the rotation of the eccentric block 104 around the central axis of the swing shaft 102 within a certain range. The micro switch 105 is arranged on the swing path of the swing shaft 102 and is triggered by the eccentric block 104.

[0029] According to the above structure provided in the present embodiment, in the saddle water flow indicator provided in the embodiment, the swing shaft 102 hinged on the body 101 can swing relative to the body 101 during the process of water flow impacting the blade 103 and drive the eccentric block 104 connected to the swing shaft 102 to abut against the micro switch 105 to trigger the micro switch 105. Since the eccentric block 104 and the swing shaft 102 are eccentrically arranged and a friction damping is formed between the two that can limit the rotation of the eccentric block 104 around the central axis of the swing shaft 102 within a certain range, the friction damping between the eccentric block 104 and the swing shaft 102 can keep the eccentric block 104 in a stable relative position relationship with the swing shaft 102 when there is no external force adjustment, and artificially controlling the rotation of the eccentric block 104 around the swing shaft 102 can adjust the distance between the swing block and the micro switch 105 and realize the adjustment of the detection accuracy of the saddle water flow indicator in the present embodiment, which has a flexibility of use far superior to the prior art.

[0030] In another embodiment of the present application, please refer to Figures 1 to 4 , the eccentric block 104 is made of rubber material. According to the above structure provided in this embodiment, the eccentric block 104 made of rubber material can be more conveniently adjusted relative to the swing shaft 102, which is conducive to further improving the use flexibility of the saddle water flow indicator in this embodiment. Preferably, the eccentric block 104 made of rubber material in this embodiment can be made of nitrile rubber.

[0031] In another embodiment of the present application, please refer to Figures 1 to 4 The blade 103 is detachably connected to the swing shaft 102. According to the above structure provided in this embodiment, the blade 103 detachably connected to the swing shaft 102 can be easily replaced, which is conducive to significantly extending the service life of the saddle water flow indicator in this embodiment.

[0032] In another embodiment of the present application, please refer to Figures 1 to 4The swing assembly further includes a fastener 106 that crosses the blade 103 and the swing shaft 102, and the fastener 106 elastically expands in the holes of the blade 103 and the swing shaft 102 through which the fastener 106 passes. According to the above structure provided in this embodiment, the fastener 106 that passes through the blade 103 and the swing shaft 102 can not only connect the blade 103 and the swing shaft 102, but also can make the blade 103 and the swing shaft 102 have a stable relative connection relationship due to the elastic expansion in the holes of the blade 103 and the swing shaft 102 through which the fastener 106 passes.

[0033] In another embodiment of the present application, please refer to Figures 1 to 4 The swing shaft 102 is disposed on the body 101, and the swing assembly further includes a seal 107 which is sleeved on the swing shaft 102 and seals the swing shaft 102 and the body 101. In this embodiment, the seal 107 forms a first seal portion 171, a second seal portion 172 and a third seal portion 173 which are sequentially distributed along the radial direction of the swing shaft 102, and the thickness of the first seal portion 171 and the third seal portion 173 in the axial direction of the swing shaft 102 is greater than the thickness of the second seal portion 172 in the axial direction of the swing shaft 102. According to the above structure provided in this embodiment, since the second seal portion 172 is located between the first seal portion 171 and the third seal portion 173 in the radial direction of the swing shaft 102, during the swinging process of the swing shaft 102, the second seal portion 172 with a smaller thickness can be more conveniently deformed and adapted to the swinging of the swing shaft 102, so that the swing shaft 102 can be well sealed and connected to the body 101 during the swinging process relative to the body 101, effectively avoiding the phenomenon of water leakage in the fire hose.

[0034] In another embodiment of the present application, please refer to Figures 1 to 4 The seal 107 is sealed and sleeved on the swing shaft 102 through the first seal portion 171, and the thickness of the first seal portion 171 in the axial direction of the swing shaft 102 is greater than the thickness of the third seal portion 173 in the axial direction of the swing shaft 102. According to the above structure provided in this embodiment, since the first seal portion 171 has a greater thickness in the axial direction of the swing shaft 102, the sealing connection effect between the swing shaft 102 and the body 101 can be further improved.

[0035] In another embodiment of the present application, please refer to Figures 1 to 4The saddle water flow indicator also includes an outer cover 108 that is detachably connected to the body 101. The outer cover 108 cooperates with the body 101 to form a cavity for accommodating the micro switch 105. The body 101 is provided with a wiring hole 109 for the micro switch 105 to connect to an external working circuit. According to the above structure provided in this embodiment, the outer cover 108 can better prevent water vapor from entering the cavity formed by cooperating with the body 101, which is conducive to enabling the saddle water flow indicator provided in this embodiment to be used stably for a longer period of time. Here, the U-shaped bolts used to install the saddle water flow indicator on the fire pipe and the sealing ring used to seal between the body and the fire pipe can adopt the existing technology.

[0036] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A saddle water flow indicator, characterized in that: include: Ontology(101); A swing assembly, comprising a swing shaft (102) hinged on the body (101), and blades (103) and eccentric blocks (104) respectively connected to both ends of the swing shaft (102); the eccentric block (104) is sleeved on the swing shaft (102) and eccentrically arranged with respect to the swing shaft (102); a friction damping is formed between the eccentric block (104) and the swing shaft (102) to limit the rotation of the eccentric block (104) around the central axis of the swing shaft (102) within a certain range; A micro switch (105) is arranged on the swing path of the swing shaft (102) and is triggered by the abutment of the eccentric block (104).

2. The saddle water flow indicator according to claim 1, characterized in that: The eccentric block (104) is made of rubber material.

3. The saddle water flow indicator according to claim 1, characterized in that: The blade (103) is detachably connected to the swing shaft (102).

4. The saddle water flow indicator according to claim 3, characterized in that: The swing assembly further comprises a fastener (106) that crosses the blade (103) and the swing shaft (102), and the fastener (106) elastically expands in holes in the blade (103) and the swing shaft (102) through which the fastener (106) passes.

5. The saddle water flow indicator according to claim 1, characterized in that: The swing shaft (102) is disposed on the body (101), and the swing assembly further comprises a sealing member (107) which is sleeved on the swing shaft (102) and enables the swing shaft (102) and the body (101) to be sealed and connected; The sealing member (107) forms a first sealing portion (171), a second sealing portion (172) and a third sealing portion (173) which are sequentially distributed along the radial direction of the swing shaft (102); the thickness of the first sealing portion (171) and the third sealing portion (173) in the axial direction of the swing shaft (102) are both greater than the thickness of the second sealing portion (172) in the axial direction of the swing shaft (102).

6. The saddle water flow indicator according to claim 5, characterized in that: The sealing member (107) is sealingly sleeved on the swing shaft (102) via the first sealing portion (171); the thickness of the first sealing portion (171) in the axial direction of the swing shaft (102) is greater than the thickness of the third sealing portion (173) in the axial direction of the swing shaft (102).

7. The saddle water flow indicator according to claim 1, characterized in that: The saddle water flow indicator further comprises an outer cover (108) detachably connected to the body (101), wherein the outer cover (108) cooperates with the body (101) to form a cavity for accommodating the micro switch (105); The body (101) is provided with a wiring hole (109) for connecting the micro switch (105) to an external working circuit.

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