Hazardous chemical fire valve

Abstract

The utility model relates to a fire valve for hazardous chemicals. The fire valve comprises a main valve body, a rotating shaft, a rotating handle and a switch indicating mechanism, the rotating shaft is rotatably arranged on the main valve body; the rotating handle is fixedly connected with the rotating shaft; the switch indicating mechanism comprises an indicating box, an indicating piece, a first gear, a second gear and a transmission assembly, the indicating box is fixedly connected with the main valve body, the indicating piece is arranged in the indicating box in a vertically movable mode, the rotating shaft is sleeved with the first gear, and the second gear is meshed with the first gear and movably connected with the indicating box. The second gear is in transmission connection with the indicating piece through the transmission assembly. According to the utility model, the opening degree of the hazardous chemical substance fire valve is visually indicated, so that the time for knowing the rotating direction and the opening degree can be effectively saved, the operation efficiency of operators is improved, the operation of the operators is facilitated, and the storage safety of hazardous chemical substances is improved; due to the fact that the switch indicating mechanism is low in manufacturing cost, production cost of the dangerous chemical fire valve is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hazardous chemicals, in particular to a fire-fighting valve for hazardous chemicals. Background Art

[0002] Dangerous chemicals are chemicals that are flammable, explosive, toxic, harmful, and radioactive, and that can easily cause casualties and property damage during transportation, loading and unloading, and storage and custody, and therefore require special protection.

[0003] In order to improve safety, corresponding fire-fighting pipes are generally installed in hazardous chemical warehouses. These fire-fighting pipes are equipped with fire-fighting valves for controlling the switch, and the switch stroke of such fire-fighting valves is generally large. Existing fire-fighting valves do not have an indicator mechanism for indicating the degree of switch. When the fire-fighting valve needs to be opened to the maximum or closed, the operator cannot immediately know the direction of the rotating switch ring, which results in a long time of trial and error. On the one hand, it is inconvenient for the operator to operate, and on the other hand, it may delay the rescue time in an emergency, resulting in a major accident. Utility Model Content

[0004] Based on this, it is necessary to provide a hazardous chemical fire valve to address the problem that the current fire valve has no indicating mechanism for indicating the degree of opening and closing, which makes it inconvenient for operators to operate, may delay rescue opportunities in emergency situations, and lead to major accidents.

[0005] A hazardous chemicals fire valve, comprising:

[0006] Main valve body;

[0007] A rotating shaft, the rotating shaft is rotatably disposed on the main valve body;

[0008] a rotating handle, the rotating handle being fixedly connected to the rotating shaft; and

[0009] The switch indicating mechanism comprises an indicating box, an indicating member, a first gear, a second gear and a transmission assembly, wherein the indicating box is fixedly connected to the main valve body, the indicating member is movably arranged in the indicating box, the first gear is sleeved outside the rotating shaft, the second gear is meshed with the first gear, the second gear is movably connected to the indicating box, and the second gear is transmission-connected to the indicating member through the transmission assembly.

[0010] The above-mentioned hazardous chemical fire valve can intuitively indicate the opening degree of the hazardous chemical fire valve through the cooperation of the indicator box, the indicator, the first gear, the second gear and the transmission assembly, which can effectively save the time of figuring out the rotation direction and the opening degree, improve the operating efficiency of the operator, facilitate the operator's operation, and improve the safety of hazardous chemical storage; since the cost of the switch indicating mechanism is low, the production cost of the hazardous chemical fire valve is effectively reduced.

[0011] In one embodiment, the transmission assembly includes a screw and a screw seat, the screw passes through the indicator box and is fixedly connected to the second gear, the screw seat is slidably disposed on the screw, and the indicator is fixedly connected to the screw seat.

[0012] In one embodiment, the transmission assembly further includes an upper fixed seat, a lower fixed seat and a bearing, wherein the upper fixed seat and the lower fixed seat are fixedly disposed in the indicator box, one end of the screw rod is connected to the upper fixed seat via the bearing, and the other end of the screw rod is connected to the lower fixed seat via the bearing.

[0013] In one embodiment, the indicator box includes a main box body and a cover plate connected to the main box body, the main box body is provided with a mounting column, the mounting column is axially provided with a screw hole, the cover plate is provided with a through hole, a bolt passes through the through hole and cooperates with the screw hole, and the cover plate is fixedly connected to the main box body.

[0014] In one of the embodiments, a perspective window for exposing the indicator is provided on the cover plate, and the perspective window is in the shape of an elongated strip and is provided along the length direction of the main box body.

[0015] In one of the embodiments, the cover plate is provided with a scale for indicating the degree of opening and closing of the fire valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an assembly structure diagram of a hazardous chemical fire valve in one embodiment of the utility model;

[0017] Figure 2 for Figure 1 A magnified view of part A;

[0018] Figure 3 For Figure 1 The diagram below shows the internal structure of the indicator box in the hazardous chemicals fire valve.

[0019] The meanings of the numbers in the accompanying drawings are:

[0020] 100-Hazardous chemicals fire valve;

[0021] 10-main valve body;

[0022] 20- Rotate the handle;

[0023] 30-switch indicating mechanism, 31-first gear, 32-second gear, 33-indicating box, 331-main box body, 332-cover plate, 333-mounting column, 334-screw hole, 335-through hole, 336-perspective window, 337-scale, 34-screw, 35-screw seat, 36-upper fixing seat, 37-lower fixing seat, 38-indicating member, 39-bearing. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element 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 invention.

[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. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0029] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0030] See also Figure 1 , is a hazardous chemical fire valve 100 according to an embodiment of the present utility model, comprising a main valve body 10, a rotating shaft, a rotating handle 20 and a switch indicating mechanism 30, wherein the rotating shaft is rotatably disposed on the main valve body 10, and the rotating handle 20 is fixedly connected to the rotating shaft. The cooperation between the rotating handle 20 and the rotating shaft controls the switch of the main valve body 10.

[0031] See also Figures 1 to 3The switch indicating mechanism 30 includes an indicating box 33, an indicating member 38, a first gear 31, a second gear 32 and a transmission assembly. The indicating box 33 is fixedly connected to the main valve body 10, and the indicating member 38 is movably arranged in the indicating box 33. The first gear 31 is set outside the rotating shaft, and the second gear 32 is meshed with the first gear 31. The second gear 32 is movably connected to the indicating box 33, and the second gear 32 is transmission-connected to the indicating member 38 through the transmission assembly. In this way, when the operator turns the rotating handle 20, the first gear 31 rotates accordingly, and the cooperation of the second gear 32 and the transmission assembly drives the indicating member 38 to move up and down in the indicating box 33, so as to indicate the opening degree of the hazardous chemical fire valve 100.

[0032] See also Figures 1 to 3 The indicator box 33 includes a main box body 331 and a cover plate 332 connected to the main box body 331. The main box body 331 is provided with a mounting column 333. The mounting column 333 is axially provided with a screw hole 334. The cover plate 332 is provided with a through hole 335. The bolt passes through the through hole 335 and cooperates with the screw hole 334. The cover plate 332 is fixedly connected to the main box body 331. The cover plate 332 is provided with a perspective window 336 for exposing the indicator 38. The perspective window 336 is in a long strip shape and is arranged along the length direction of the main box body 331. The cover plate 332 is provided with a scale 337 for indicating the degree of opening and closing of the fire valve. In this way, the opening degree of the hazardous chemical fire valve 100 can be specifically digitized by the cooperation of the indicator 38, the perspective window 336 and the scale 337, which is more intuitive.

[0033] See also Figures 1 to 3 The transmission assembly includes an upper fixed seat 36, a lower fixed seat 37, a bearing 39, a screw rod 34 and a screw rod seat 35. The upper fixed seat 36 and the lower fixed seat 37 are fixedly arranged in the main box body 331. One end of the screw rod 34 is connected to the upper fixed seat 36 through the bearing 39, and the other end of the screw rod 34 is connected to the lower fixed seat 37 through the bearing 39. The screw rod 34 passes through the upper fixed seat 36 and the main box body 331 and is fixedly connected to the second gear 32. The screw rod seat 35 is slidably arranged on the screw rod 34, and the indicator 38 is fixedly connected to the screw rod seat 35. The indicator 38 is provided with an indicator line, so that it can be more intuitive and clear.

[0034] The installation process of the hazardous chemical fire valve 100 described in this embodiment is as follows: during installation, first ensure that the main valve body 10 is in a closed state, sleeve the first gear 31 onto the outside of the rotating shaft, and then rotate the second gear 32 to make the indicator 38 abut against the lower fixed seat 37, and then fix the indicator box 33 on the main valve body 10, and make the first gear 31 and the second gear 32 mesh with each other.

[0035] The beneficial effect of the utility model is that the opening degree of the hazardous chemical fire valve 100 can be intuitively indicated through the cooperation of the indicator box 33, the indicator member 38, the first gear 31, the second gear 32 and the transmission assembly, which can effectively save the time of figuring out the rotation direction and the opening degree, improve the operating efficiency of the operator, facilitate the operator's operation, and improve the safety of hazardous chemical storage; since the cost of the switch indicating mechanism 30 is low, the production cost of the hazardous chemical fire valve 100 is effectively reduced.

[0036] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A hazardous chemicals fire valve, characterized in that: include: Main valve body; A rotating shaft, the rotating shaft is rotatably disposed on the main valve body; A rotating handle, the rotating handle is fixedly connected to the rotating shaft; as well as The switch indicating mechanism comprises an indicating box, an indicating member, a first gear, a second gear and a transmission assembly, wherein the indicating box is fixedly connected to the main valve body, the indicating member is movably arranged in the indicating box, the first gear is sleeved outside the rotating shaft, the second gear is meshed with the first gear, the second gear is movably connected to the indicating box, and the second gear is transmission-connected to the indicating member through the transmission assembly.

2. The hazardous chemicals fire valve according to claim 1, characterized in that: The transmission assembly includes a screw and a screw seat. The screw passes through the indicator box and is fixedly connected to the second gear. The screw seat is slidably arranged on the screw, and the indicator is fixedly connected to the screw seat.

3. The hazardous chemicals fire valve according to claim 2, characterized in that: The transmission assembly also includes an upper fixed seat, a lower fixed seat and a bearing. The upper fixed seat and the lower fixed seat are fixedly arranged in the indicator box. One end of the screw rod is connected to the upper fixed seat through the bearing, and the other end of the screw rod is connected to the lower fixed seat through the bearing.

4. The hazardous chemicals fire valve according to claim 3, characterized in that: The indicator box includes a main box body and a cover plate connected to the main box body, the main box body is provided with a mounting column, the mounting column is axially provided with a screw hole, the cover plate is provided with a through hole, a bolt passes through the through hole and cooperates with the screw hole, and the cover plate is fixedly connected to the main box body.

5. The hazardous chemicals fire valve according to claim 4, characterized in that: The cover plate is provided with a perspective window for exposing the indicator, the perspective window is in a long strip shape, and the perspective window is arranged along the length direction of the main box body.

6. The hazardous chemicals fire valve according to claim 5, characterized in that: The cover plate is provided with a scale for marking the degree of opening and closing of the fire valve.

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