Cabinet position interlocking device for rubber membrane gas cabinet

Abstract

The utility model discloses a cabinet position interlocking device for a rubber film gas cabinet, and relates to the technical field of gas cabinets. A steering member; the guide rail extends in the vertical direction; the counterweight piece is arranged on the guide rail, and is connected with the gas holder piston after being wound on the steering piece through a steel wire rope; the first cabinet position interlocking mechanism is used for being installed outside the side wall of the gas cabinet and comprises a first box body and a second box body, the first travel switch is arranged in the first box body; the first transmission mechanism can rotate, part of the first transmission mechanism is located in the first box body, part of the first transmission mechanism is located outside the first box body, and the counterweight part can touch the first transmission mechanism located outside the first box body in the process of moving upwards along the guide rail, so that the first transmission mechanism rotates and triggers the first travel switch; and the second cabinet position interlocking mechanism is mounted outside the side wall of the gas cabinet. According to the invention, low-position and high-position interlocking of the cabinet volume can be realized through a mechanical structure.

Description

Technical Field

[0001] This utility model relates to the field of gas holder technology, and in particular to a cabinet interlocking device for a rubber membrane gas holder. Background Technology

[0002] To ensure the safe and stable operation of gas holders, such as rubber diaphragm-sealed gas holders, and to prevent structural damage and accidents caused by top-up or rapid bottom-down movements, gas holders should be equipped with high-pressure and low-pressure audible and visual alarms and interlocking protection systems. Gas holders are typically equipped with instrument-type gas holder level detection devices, generally using laser or radar level gauges. These instruments are precision instruments and also prone to wear and tear. Due to their high precision, they are also sensitive to environmental conditions and are susceptible to errors caused by the harsh environment inside the gas holder. Therefore, gas holders need to be equipped with a mechanical interlocking device for interlocking protection with the electrical equipment, allowing them to act as backups for each other and ensuring the safe operation of the gas holder. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a mechanical interlocking device for rubber membrane gas holders, which can realize the low-level and high-level interlocking of the cabinet volume through a mechanical structure.

[0004] The specific technical solution of this utility model embodiment is as follows:

[0005] A cabinet position interlocking device for a rubber membrane gas holder, the cabinet position interlocking device comprising:

[0006] Gas holder piston;

[0007] A steering component for installation on the top of the gas holder;

[0008] A guide rail that extends vertically and is installed on the outside of the side wall of a gas holder;

[0009] A counterweight is installed on the guide rail, and the counterweight can move up and down along the guide rail. The counterweight is connected to the gas holder piston after being wound around the deflector by a steel wire rope.

[0010] A first cabinet interlocking mechanism for installation on the side wall of a gas holder includes: a first housing; a first limit switch disposed in the first housing; and a rotatable first transmission mechanism, part of which is located in the first housing and part of which is located outside the first housing. The counterweight can touch the first transmission mechanism located outside the first housing during its upward movement along the guide rail, so as to rotate the first transmission mechanism and trigger the first limit switch.

[0011] The second cabinet position interlocking mechanism for installation outside the sidewall of the gas cabinet comprises a second box body, a second travel switch arranged in the second box body, and a second transmission mechanism capable of rotating, part of which is located in the second box body and part of which is located outside the second box body, and the counterweight can touch the second transmission mechanism outside the second box body during downward movement along the guide rail to make the second transmission mechanism rotate and trigger the second travel switch.

[0012] The installation height of the first cabinet position interlocking mechanism is higher than that of the second cabinet position interlocking mechanism.

[0013] Preferably, the guide rail comprises two tracks arranged oppositely, and the counterweight is provided with two pulleys arranged oppositely, each of which cooperates with the corresponding track.

[0014] Preferably, the first transmission mechanism comprises a first lever installed on the first box body through a first mounting shaft and capable of rotating around the first mounting shaft, and a first impact piece installed at one end of the first lever, the other end of the first lever being capable of triggering the first travel switch during rotation of the first lever.

[0015] Preferably, one end of the first lever is provided with a first counterweight.

[0016] Preferably, the first lever is provided with a first limiting block below the side of one end, so that the first impact piece at one end of the first lever is kept in a position capable of being touched by the counterweight.

[0017] Preferably, the second transmission mechanism comprises a second lever installed on the second box body through a second mounting shaft and capable of rotating around the second mounting shaft, and a second impact piece installed at one end of the second lever, the other end of the second lever being capable of triggering the second travel switch during rotation of the second lever.

[0018] Preferably, the other end of the second lever is provided with a second counterweight.

[0019] Preferably, the second lever is provided with a second limiting block above the side of one end, so that the second impact piece at one end of the second lever is kept in a position capable of being touched by the counterweight.

[0020] Preferably, the first box body and the first transmission mechanism are provided with a corrosion-resistant coating.

[0021] Preferably, the second box body and the second transmission mechanism are provided with a corrosion-resistant coating.

[0022] The technical scheme of the utility model has the following remarkable beneficial effects:

[0023] 1, this application can be used as rubber film sealed type coal gas tank in instrument detection facility mechanical supplementary backup facilities, in considering the cooperation with the leveling device counterweight operation mode at the same time, ensure the installation of cabinet interlock device convenient, good versatility, convenient replacement and low cost. This application and instrument detection facility are backup for each other, common protection of the safe operation of the gas tank, improve the safety of gas tank.

[0024] 2, the first cabinet interlock mechanism has a first box body, and the second cabinet interlock mechanism has a second box body, so as to play a protection role, the stroke switch and most of the transmission mechanism are installed in the box body, only the impact piece and the first counterweight block are exposed outside the box body. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present utility model disclosure in any way. In addition, the shape and scale of each component in the drawings are only schematic and are used to help understand the present utility model, and are not specific limitations on the shape and scale of each component of the present utility model. Those skilled in the art can choose various possible shapes and scales to implement the present utility model according to specific circumstances under the guidance of the present utility model.

[0026] Figure 1 It is a side view of the cabinet interlock device installed in the gas tank in the embodiment of the present utility model;

[0027] Figure 2 It is a front view of the cabinet interlock device installed in the gas tank in the embodiment of the present utility model;

[0028] Figure 3 It is a front view of the first cabinet interlock mechanism in the embodiment of the present utility model;

[0029] Figure 4 It is a top view of the first cabinet interlock mechanism in the embodiment of the present utility model;

[0030] Figure 5 It is a front view of the second cabinet interlock mechanism in the embodiment of the present utility model;

[0031] Figure 6 It is a top view of the second cabinet interlock mechanism in the embodiment of the present utility model;

[0032] Figure 7 It is a schematic diagram of the installation of the first cabinet interlock mechanism in the embodiment of the present utility model;

[0033] Figure 8 It is the installation schematic view of the second cabinet position interlocking mechanism in the embodiment of the utility model;

[0034] Figure 9 It is the schematic view of the first transmission mechanism which is touched by the counterweight installed on the guide rail outside the first box body in the embodiment of the utility model;

[0035] Figure 10 It is the schematic view of the second transmission mechanism which is touched by the counterweight installed on the guide rail outside the second box body in the embodiment of the utility model.

[0036] The reference signs of the above drawing are:

[0037] 1, gas cabinet piston; 2, turning piece; 3, guide rail; 31, track; 4, counterweight; 41, pulley; 5, first cabinet position interlocking mechanism; 51, first box body; 52, first travel switch; 531, first lever; 532, first mounting shaft; 533, first impact piece; 534, first counterweight block; 54, first limit stopper; 55, first mounting bracket; 6, second cabinet position interlocking mechanism; 61, second box body; 62, second travel switch; 631, second lever; 632, second mounting shaft; 633, second impact piece; 634, second counterweight block; 64, second limit stopper; 65, second mounting bracket; 7, steel wire rope; 8, first support; 9, second support; 100, gas cabinet; 200, maintenance platform. DETAILED DESCRIPTION

[0038] The details of the utility model can be more clearly understood in combination with the description of the specific embodiment of the utility model and the drawings. However, the specific embodiment of the utility model described herein is only used for the purpose of explaining the utility model, and cannot be understood as the limitation of the utility model in any way. Under the guidance of the utility model, the skilled person can conceive any possible deformation based on the utility model, which should be regarded as belonging to the scope of the utility model.

[0039] In order to realize the low position and high position interlocking of the cabinet volume through the mechanical structure, a cabinet position mechanical interlocking device for rubber membrane gas cabinet is provided in the application, Figure 1 It is the side view of the cabinet position interlocking device installed in the gas cabinet in the embodiment of the utility model, Figure 2 It is the front view of the cabinet position interlocking device installed in the gas cabinet in the embodiment of the utility model, Figure 3 It is the front view of the first cabinet position interlocking mechanism in the embodiment of the utility model, Figure 4 It is the top view of the first cabinet position interlocking mechanism in the embodiment of the utility model, Figure 5 It is the front view of the second cabinet position interlocking mechanism in the embodiment of the utility model, Figure 6As shown in the plan view of the second cabinet position interlocking mechanism in the embodiment of the utility model, Figures 1 to 6 The cabinet position interlocking device for the rubber membrane gas tank can include: a gas tank piston 1; a turning piece 2 for being installed at the top of the gas tank; a guide rail 3 extending in the vertical direction for being installed outside the side wall of the gas tank; a counterweight 4 installed on the guide rail 3; a first cabinet position interlocking mechanism 5 for being installed outside the side wall of the gas tank; and a second cabinet position interlocking mechanism 6 for being installed outside the side wall of the gas tank.

[0040] As shown in the plan view of the second cabinet position interlocking mechanism in the embodiment of the utility model, Figure 1 and Figure 2 The gas tank 100 can be a rubber membrane sealing type gas tank 100. The counterweight 4 can move up and down along the guide rail 3. The turning piece 2 can provide a direction change for the steel wire rope 7 to facilitate the counterweight 4 to produce a linkage with the gas tank piston 1. The counterweight 4 can be connected with the gas tank piston 1 through the steel wire rope 7 winding around the turning piece 2. The stroke of the counterweight 4 is completely consistent with the stroke of the gas tank piston 1.

[0041] As feasible, Figure 9 As shown in the schematic view of the first transmission mechanism touched by the counterweight installed on the guide rail outside the first box body in the embodiment of the utility model, Figure 10 As shown in the schematic view of the second transmission mechanism touched by the counterweight installed on the guide rail outside the second box body in the embodiment of the utility model, Figure 9 and Figure 10 The guide rail 3 can include two tracks 31 arranged oppositely. The counterweight 4 is installed with two pulleys 41 arranged oppositely, each pulley 41 cooperates with the track 31 corresponding to itself, so that the counterweight 4 is limited on the two tracks 31, and the counterweight 4 can move up and down along the guide rail 3 smoothly through the pulley 41.

[0042] As shown in the schematic view of the first transmission mechanism touched by the counterweight installed on the guide rail outside the first box body in the embodiment of the utility model, Figure 3 and Figure 4 The first cabinet position interlocking mechanism 5 can include: a first box body 51; a first stroke switch 52 arranged in the first box body 51; a first transmission mechanism 53 capable of rotating, part of the first transmission mechanism 53 is located in the first box body 51, and part of the first transmission mechanism 53 is located outside the first box body 51, the counterweight 4 can touch the first transmission mechanism 53 located outside the first box body 51 during moving upward along the guide rail 3, so as to make the first transmission mechanism 53 rotate and trigger the first stroke switch 52. Then, the first stroke switch 52 outputs an electric signal, which can be transmitted to the control room, and the interlocking protection action is completed through the program in the control system.

[0043] Figure 7 As shown in the installation schematic view of the first cabinet position interlocking mechanism in the embodiment of the utility model, Figure 7As shown, the first box 51 can be installed on the outer wall of the gas cabinet 100 through the first support 8. One side of the first box 51 in the horizontal direction has a notch, so that part of the first transmission mechanism 53 can extend out of the first box 51. The first travel switch 52 can be fixedly installed on the first box 51 through the first mounting support 55. The trigger part of the first travel switch 52 can be located on one side in the horizontal direction.

[0044] As shown in Figure 3 and Figure 4 , the first transmission mechanism 53 can include: a first lever 531 installed on the first box 51 through a first mounting shaft 532, the first lever 531 being able to rotate about the first mounting shaft 532; a first impact piece 533 installed on one end of the first lever 531, the other end of the first lever 531 being able to trigger the first travel switch 52 when the first lever 531 rotates. When the cabinet capacity decreases, the counterweight 4 moves upward under the action of the steel wire rope 7, and when it reaches the first cabinet position interlocking mechanism 5, the counterweight 4 can touch the first impact piece 533 located outside the first box 51, so that the first lever 531 rotates in the counterclockwise direction, and the other end of the first lever 531 triggers the first travel switch 52.

[0045] When the counterweight 4 moves downward away from the first cabinet position interlocking mechanism 5, in order to restore one end (the right end) of the first lever 531 to a position that can be touched by the counterweight 4, one end (the right end) of the first lever 531 has a first counterweight 534, so that the first lever 531 can automatically rotate clockwise to restore to a position that can be touched by the counterweight 4, such as a horizontal position. In order to make the first lever 531 automatically rotate clockwise to restore and always remain in a position that can be touched by the counterweight 4, a first limit block 54 is provided below one side of the first lever 531 towards one end, so that the first impact piece 533 of one end of the first lever 531 remains in a position that can be touched by the counterweight 4.

[0046] As shown in Figure 5 and Figure 6 , the second cabinet position interlocking mechanism 6 can include: a second box 61; a second travel switch 62 provided in the second box 61; a second transmission mechanism 63 capable of rotating, part of the second transmission mechanism 63 being located in the second box 61 and part of the second transmission mechanism 63 being located outside the second box 61, the counterweight 4 being able to touch the second transmission mechanism 63 located outside the second box 61 during downward movement along the guide rail 3, so that the second transmission mechanism 63 rotates and triggers the second travel switch 62. Then, the second travel switch 62 outputs an electrical signal, which can be transmitted to the control room, and the interlocking protection action is completed through the program in the control system.

[0047] Figure 8The installation schematic view of the second cabinet position interlocking mechanism in the embodiment of the utility model is shown in the figure, Figure 8 The second box body 61 is installed on the maintenance platform 200 outside the outer wall of the gas tank 100 through the second support 9. One side of the second box body 61 in the horizontal direction has a notch, so that part of the second transmission mechanism 63 can extend outside the second box body 61. The second travel switch 62 can be fixedly installed on the second box body 61 through the second mounting support 65. The trigger part of the second travel switch 62 can be located on one side in the horizontal direction.

[0048] As shown in the figure, Figure 5 and Figure 6 The second transmission mechanism 63 can include: a second lever 631, the second lever 631 is installed on the second box body 61 through a second mounting shaft 632, and the second lever 631 can rotate around the second mounting shaft 632; a second impact piece 633 installed on one end of the second lever 631, and the other end of the second lever 631 can trigger the second travel switch 62 when the second lever 631 rotates. When the tank capacity rises, the counterweight 4 moves downward under the action of the steel wire rope 7, and when it reaches the second cabinet position interlocking mechanism 6, the counterweight 4 can touch the second impact piece 633 located outside the second box body 61, so that the second lever 631 rotates in the clockwise direction, and the other end of the second lever 631 triggers the second travel switch 62.

[0049] When the counterweight 4 moves upward away from the second cabinet position interlocking mechanism 6, in order to restore one end (the right end) of the second lever 631 to a position that can be touched by the counterweight 4, the other end (the left end) of the second lever 631 has a second counterweight 634, so that the second lever 631 can automatically rotate counterclockwise to restore to a position that can be touched by the counterweight 4, for example, a horizontal position. In order to make the second lever 631 automatically rotate counterclockwise to restore and always remain in a position that can be touched by the counterweight 4, a second limiting block 64 is arranged on the side of the second lever 631 towards the upper side of one end, so that the second impact piece 633 of one end of the second lever 631 remains in a position that can be touched by the counterweight 4.

[0050] The installation height of the first cabinet position interlocking mechanism 5 is higher than the installation height of the second cabinet position interlocking mechanism 6. As a possibility, the first cabinet position interlocking mechanism 5 is used to detect the low tank capacity of the gas tank 100, for example, 5% tank capacity, and the second cabinet position interlocking mechanism 6 is used to detect the high tank capacity of the gas tank 100, for example, 95% tank capacity.

[0051] In addition to the travel switch, the first box body 51 and the first transmission mechanism 53 can be made of ordinary carbon steel. Since the use environment is outdoor, the first box body 51 and the first transmission mechanism 53 can have a corrosion-resistant coating. Similarly, the second box body 61 and the second transmission mechanism 63 can be made of ordinary carbon steel. The second box body 61 and the second transmission mechanism 63 can have a corrosion-resistant coating. The travel switch is a standard electrical component, and a mature existing product can be directly used.

[0052] When the gas tank piston 1 goes up, the counterweight 4 goes down along the guide rail 3, and when it reaches the second tank position interlocking mechanism 6, for example, when the tank capacity is 95%, the lower end of the counterweight 4 hits the second impact piece 633 of the second tank position interlocking mechanism 6, driving the second lever 631 to rotate around the second mounting shaft 632. The other end of the second lever 631 triggers the trigger part of the second travel switch 62, causing it to output an electrical signal, which is transmitted to the control room to trigger the interlocking protection action. With the interlocking protection action in effect, the up-going gas tank piston 1 falls back, and the counterweight 4 goes up, and when they reach the normal tank position, the counterweight 4 disengages from the second impact piece 633 of the second tank position interlocking mechanism 6. The second counterweight block 634, under the action of gravity, drives the second lever 631 to rotate around the second mounting shaft 632 to the horizontal position, and the second lever 631 is blocked by the second limit stop 64, remaining in the horizontal position. The second lever 631 completes the reset, and at the same time, the trigger part of the second travel switch 62 disengages from the second lever 631, interrupting the output of the electrical signal, and the system interlocking protection action in the control room is lifted.

[0053] Conversely, when the gas tank piston 1 goes down, the counterweight 4 goes up along the guide rail 3, and when it reaches the first tank position interlocking mechanism 5, for example, when the tank capacity is 5%, the upper end of the counterweight 4 hits the first impact piece 533 of the first tank position interlocking mechanism 5, driving the first lever 531 to rotate around the first mounting shaft 532. The other end of the first lever 531 triggers the trigger part of the first travel switch 52, causing it to output an electrical signal, which is transmitted to the control room to trigger the interlocking protection action. With the interlocking protection action in effect, the down-going gas tank piston 1 rises back, and the counterweight 4 goes down, and when they reach the normal tank position, the counterweight 4 disengages from the first impact piece 533 of the first tank position interlocking mechanism 5. The first counterweight block 534, under the action of gravity, drives the first lever 531 to rotate around the first mounting shaft 532 to the horizontal position, and the first lever 531 is blocked by the first limit stop 54, remaining in the horizontal position. The first lever 531 completes the reset, and at the same time, the trigger part of the first travel switch 52 disengages from the first lever 531, interrupting the output of the electrical signal, and the system interlocking protection action in the control room is lifted.

[0054] The turning part 2, the guide rail 3, the counterweight part 4, the first tank position interlocking mechanism 5 and the second tank position interlocking mechanism 6 in the tank position interlocking device for the rubber membrane gas tank in the application are all installed outdoors, in order to ensure the requirements of the travel switch on the working environment, the first tank position interlocking mechanism 5 has a first box body 51, and the second tank position interlocking mechanism 6 has a second box body 61, thereby playing a protection role, the travel switch and most of the transmission mechanism are installed in the box body, and only the impact part and the first counterweight block 534 are exposed outside the box body.

[0055] The application can be used as a mechanical backup facility of the sealed gas tank 100 tank instrument detection facility, while considering the cooperation with the leveling device counterweight operation mode, the installation of the tank position interlocking device is convenient, good in universality, convenient to replace and low in cost. The application and the instrument detection facility are backup for each other, and the safety operation of the gas tank 100 is jointly protected, and the safety of the gas tank is improved.

[0056] All articles and references disclosed, including patent applications and publications, are incorporated herein by reference for all purposes. The term "consisting essentially of to describe combinations shall include the elements, ingredients, components or steps identified, and such other elements, ingredients, components or steps that do not materially affect the basic and novel characteristics of the combinations. The use of the term "comprising" or "including" to describe combinations herein is also intended to cover embodiments consisting essentially of the elements, ingredients, components or steps. By use of the term "may" herein, it is intended that any property so described can or can not be present. Multiple elements, ingredients, components or steps can be provided by a single integrated element, ingredient, component or step. Alternatively, a single integrated element, ingredient, component or step might be divided into separate multiple elements, ingredients, components or steps. To "comprise" or "include" an element or list of elements is not intended to foreclose the adding of other elements or steps to those already provided.

[0057] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same and similar parts between the embodiments can be referred to each other. The above embodiments are only for illustrating the technical concept and characteristics of the utility model, and the purpose is to enable those skilled in the art to understand the content of the utility model and implement it, and it cannot limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit and essence of the utility model should be covered within the protection scope of the utility model.

Claims

1. A tank position interlock device for a rubber membrane gasholder, characterized by, The tank position interlocking device for the coal gas tank comprises: a gas tank piston; a turning piece installed at the top of the gas tank; a guide rail extending in the vertical direction installed outside the sidewall of the gas tank; a counterweight installed on the guide rail, which can move up and down along the guide rail, and is connected with the gas tank piston through a steel wire rope winding around the turning piece; a first tank position interlocking mechanism installed outside the sidewall of the gas tank, comprising: a first box body; a first travel switch arranged in the first box body; a first transmission mechanism capable of rotating, part of which is located in the first box body and part of which is located outside the first box body, and the counterweight can touch the first transmission mechanism located outside the first box body during upward movement along the guide rail, so as to rotate the first transmission mechanism and trigger the first travel switch; a second tank position interlocking mechanism installed outside the sidewall of the gas tank, comprising: a second box body; a second travel switch arranged in the second box body; a second transmission mechanism capable of rotating, part of which is located in the second box body and part of which is located outside the second box body, and the counterweight can touch the second transmission mechanism located outside the second box body during downward movement along the guide rail, so as to rotate the second transmission mechanism and trigger the second travel switch; The installation height of the first tank position interlocking mechanism is higher than that of the second tank position interlocking mechanism.

2. The tank position interlocking device for a rubber membrane gasholder according to claim 1, characterized by The guide rail comprises two tracks arranged oppositely, and the counterweight is provided with two pulleys arranged oppositely, each of which cooperates with the corresponding track.

3. The tank position interlocking device for a rubber membrane gasholder according to claim 1, characterized by The first transmission mechanism comprises: a first lever installed on the first box body through a first installation shaft, which can rotate around the first installation shaft; a first impact piece installed at one end of the first lever, and the other end of the first lever can trigger the first travel switch during rotation of the first lever.

4. The tank position interlocking device for a rubber membrane gasholder according to claim 3, characterized by One end of the first lever is provided with a first counterweight.

5. The tank position interlocking device for a rubber membrane gasholder according to claim 3, characterized by The first lever is provided with a first limiting block below the side of one end, so that the first impact piece at one end of the first lever is kept in a position that can be touched by the counterweight.

6. The tank position interlocking device for a rubber membrane gasholder according to claim 1, characterized by The second transmission mechanism comprises: a second lever installed on the second box body through a second installation shaft, which can rotate around the second installation shaft; a second impact piece installed at one end of the second lever, and the other end of the second lever can trigger the second travel switch during rotation of the second lever.

7. The tank position interlocking device for a rubber membrane gasholder according to claim 6, characterized by The other end of the second lever is provided with a second counterweight.

8. The tank position interlocking device for a rubber membrane gasholder according to claim 6, characterized by The second lever is provided with a second limiting block above the side of one end, so that the second impact piece at one end of the second lever is kept in a position that can be touched by the counterweight.

9. The tank position interlocking device for a rubber membrane gasholder according to claim 1, characterized by, The first box body and the first transmission mechanism are provided with a corrosion-resistant coating.

10. The bay interlock for a rubber membrane gasholder according to claim 1, characterized in that, The second box body and the second transmission mechanism are provided with a corrosion-resistant coating.

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