Wet alarm valve pipe diameter measuring device

Abstract

The utility model provides a pipe diameter measuring device for a wet alarm valve. The pipe diameter measuring device comprises a main scale, a first inner diameter measuring claw, a second inner diameter measuring claw, a vernier scale, a limiting assembly and a pressing assembly, the first inner diameter measuring claw is fixedly arranged on the main scale, the vernier scale is connected to the main scale in a sliding mode, and the second inner diameter measuring claw is arranged on the vernier scale. The vernier scale is provided with a limiting groove, the limiting assembly is slidably connected in the limiting groove, and the limiting assembly has elasticity and can extrude the main scale; the limiting groove is further provided with a communication hole which is formed outwards, the pressing assembly is arranged in the communication hole in a sliding and penetrating mode and has elasticity, and the limiting assembly can be far away from the main ruler by pressing the pressing assembly. The pipe diameter measuring device for the wet alarm valve can be automatically fixed after the size is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of fire protection, in particular to a wet alarm valve pipe diameter measuring device. Background Art

[0002] The diameter of the pipe connecting the water tank and the wet alarm valve must meet the design requirements to ensure the safety of the fire protection system. When checking whether the design of the relevant pipeline of the on-site wet alarm valve meets the relevant safety requirements such as GB50084, it is usually determined by on-site calculation based on factors such as the water flow rate of the water supply source. After determining the pipe diameter, adjust the caliper to the required size. If the caliper can be stuck in the wet alarm valve, it does not meet the requirements.

[0003] When determining the size, it is often necessary to determine it multiple times, and for this purpose, the caliper needs to be adjusted multiple times. After each adjustment of the caliper, the size needs to be manually fixed, which is still quite troublesome. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model proposes a wet alarm valve pipe diameter measuring device to solve the technical problem mentioned in the above background technology that the size of the caliper needs to be manually fixed every time after adjusting it.

[0005] To solve this technical problem, the technical solution adopted in this application is:

[0006] A wet alarm valve pipe diameter measuring device, comprising a main ruler, a first inner diameter measuring claw, a second inner diameter measuring claw, a vernier ruler, a limit assembly and a pressing assembly;

[0007] The first inner diameter measuring claw is fixed on the main scale, the vernier scale is slidably connected to the main scale, and the second inner diameter measuring claw is arranged on the vernier scale;

[0008] The vernier ruler is provided with a limit groove, the limit assembly is slidably connected in the limit groove, the limit assembly is elastic and can squeeze the main ruler;

[0009] The limiting groove is also provided with a communicating hole opened outwardly, and the pressing component can be slidably penetrated in the communicating hole and has elasticity. Pressing the pressing component can make the limiting component move away from the main scale.

[0010] Furthermore, the limit assembly includes a limit spring and a limit block; one end of the limit spring is connected to the limit groove, and the other end is connected to the limit block, the limit block is slidably connected in the limit groove, and is provided with an inclined surface facing the connecting hole.

[0011] Furthermore, the pressing assembly includes a pressing column, a pressing block and a return spring; the pressing column is slidably connected in the connecting hole, a pressing block is provided at one end of the pressing column away from the limit block, and the pressing block is connected to the vernier scale through the return spring.

[0012] Furthermore, one end of the pressing column close to the limiting block is a spherical surface.

[0013] Furthermore, when the pressing column is pressed to the maximum displacement point, the end of the pressing column still abuts against the inclined surface of the limiting block.

[0014] Compared with the prior art, the advancement of this application is:

[0015] The position of the vernier scale can be fixed by pressing the main scale with the limit component. When the vernier scale needs to be moved, the pressing component is pressed to squeeze the limit component and move the limit component away from the main scale, so that the vernier scale can drive the second inner diameter measuring claw to move to the required size. Then, the pressing component is released, the pressing component moves away from the limit component, and the limit component presses the main scale again under the action of its own elastic force to fix the position. In this way, the position of the second inner diameter measuring claw is fixed by releasing the pressing component without locking it again. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation of the utility model, the following will briefly introduce the drawings required for use in the specific implementation. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0017] Figure 1 A front view of a wet alarm valve pipe diameter measuring device provided by one embodiment of the utility model;

[0018] Figure 2 for Figure 1 A cross-sectional schematic diagram of a wet alarm valve pipe diameter measuring device shown;

[0019] Reference numerals:

[0020] Main ruler 1, first inner diameter measuring jaw 2, second inner diameter measuring jaw 3, vernier ruler 4, limit groove 41, connecting hole 42, limit assembly 5, limit spring 51, limit block 52, pressing assembly 6, pressing column 61, pressing block 62, and return spring 63. DETAILED DESCRIPTION

[0021] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0022] Please also read Figure 1 and Figure 2 , this embodiment provides a wet alarm valve pipe diameter measuring device, including a main ruler 1, a first inner diameter measuring claw 2, a second inner diameter measuring claw 3, a vernier ruler 4, a limit assembly 5 and a pressing assembly 6;

[0023] The first inner diameter measuring jaw 2 is fixed on the main scale 1, the vernier scale 4 is slidably connected to the main scale 1, and the second inner diameter measuring jaw 3 is arranged on the vernier scale 4; it should be understood that the use and connection of the first inner diameter measuring jaw 2 and the second inner diameter measuring jaw 3 are the same as those of a common vernier caliper.

[0024] A limit groove 41 is provided on the vernier scale 4, and the limit assembly 5 is slidably connected in the limit groove 41. The limit assembly 5 is elastic and can squeeze the main scale 1; specifically, the limit groove 41 is connected to the main scale 1, and the limit assembly 5 squeezes the main scale 1 under the action of its own elasticity in a static state, thereby limiting the movement of the vernier scale 4.

[0025] The limiting groove 41 is also provided with a connecting hole 42 opened outward, and the pressing component 6 can be slidably penetrated in the connecting hole 42 and has elasticity. Pressing the pressing component 6 can make the limiting component 5 away from the main scale 1. Specifically, the pressing component 6 is spaced apart from the main scale 1, and after releasing the pressing component 6, the pressing component 6 can be away from the limiting component 5.

[0026] The position of the vernier scale 4 can be fixed by pressing the main scale 1 with the limit component 5. When the position of the vernier scale 4 needs to be moved, the pressing component 6 is pressed to squeeze the limit component 5 and move the limit component 5 away from the main scale 1, so that the vernier scale 4 can drive the second inner diameter measuring claw 3 to move to the required size. Then, the pressing component 6 is released, the pressing component 6 is moved away from the limit component 5, and the limit component 5 presses the main scale 1 again under the action of its own elastic force to fix the position. In this way, the position of the second inner diameter measuring claw 3 is fixed by releasing the pressing component 6 without locking it again.

[0027] In other schemes, the limit assembly 5 includes a limit spring 51 and a limit block 52; one end of the limit spring 51 is connected to the limit groove 41, and the other end is connected to the limit block 52, the limit block 52 is slidably connected in the limit groove 41, and is provided with an inclined surface facing the connecting hole 42. It should be understood that the limit spring 51 is in a compressed state in a static state, and pushes the limit block 52 to squeeze the main scale 1, so as to fix the position of the vernier scale 4. Specifically, a slide groove set toward the main scale 1 is also provided in the limit groove 41, and the limit block 52 is slidably connected in the slide groove. After being pressed, the pressing assembly 6 squeezes the inclined surface of the limit block 52, so that the limit block 52 gradually moves away from the main scale 1.

[0028] In other embodiments, the pressing assembly 6 includes a pressing column 61, a pressing block 62 and a return spring 63; the pressing column 61 is slidably connected to the connecting hole 42, and a pressing block 62 is provided at one end of the pressing column 61 away from the stop block 52, and the pressing block 62 is connected to the vernier scale 4 through the return spring 63. It should be understood that the pressing column 61 can squeeze the inclined surface of the stop block 52 to make the inclined surface block away from the main scale 1.

[0029] In other embodiments, the end of the pressing column 61 close to the limiting block 52 is a spherical surface, which can more conveniently squeeze and drive the limiting block 52 to slide.

[0030] In other embodiments, when the pressing column 61 is pressed to the maximum displacement point, the end of the pressing column 61 still abuts against the inclined surface of the limit block 52. Thus, when the pressing column 61 is released, the pressing column 61 can be better away from the limit block 52.

[0031] The above-mentioned wet alarm valve pipe diameter measuring device can achieve automatic fixed position after adjusting the size.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A wet alarm valve diameter measuring device, characterized in that: It includes a main ruler, a first inner diameter measuring jaw, a second inner diameter measuring jaw, a vernier ruler, a limit assembly and a pressing assembly; The first inner diameter measuring claw is fixed on the main scale, the vernier scale is slidably connected to the main scale, and the second inner diameter measuring claw is arranged on the vernier scale; The vernier ruler is provided with a limit groove, the limit assembly is slidably connected in the limit groove, the limit assembly is elastic and can squeeze the main ruler; The limiting groove is also provided with a communicating hole opened outwardly, and the pressing component can be slidably penetrated in the communicating hole and has elasticity. Pressing the pressing component can make the limiting component move away from the main scale.

2. A wet alarm valve diameter measuring device according to claim 1, characterized in that: The limiting assembly includes a limiting spring and a limiting block; one end of the limiting spring is connected to the limiting groove, and the other end is connected to the limiting block; the limiting block is slidably connected in the limiting groove and is provided with an inclined surface facing the connecting hole.

3. A wet alarm valve diameter measuring device according to claim 2, characterized in that: The pressing assembly includes a pressing column, a pressing block and a return spring; the pressing column is slidably connected in the connecting hole, a pressing block is provided at one end of the pressing column away from the limiting block, and the pressing block is connected to the vernier ruler through the return spring.

4. A wet alarm valve diameter measuring device according to claim 3, characterized in that: One end of the pressing column close to the limiting block is a spherical surface.

5. A wet alarm valve diameter measuring device according to claim 4, characterized in that: When the pressing column is pressed to the maximum displacement point, the end of the pressing column still abuts against the inclined surface of the limiting block.

Images