Power distribution cabinet for power construction

Abstract

The utility model discloses a power distribution cabinet for power construction, which comprises a cabinet body, a plurality of device fixing frames are fixedly connected in the cabinet body, the cabinet body is provided with a fire extinguishing assembly, the fire extinguishing assembly comprises an inert gas storage tank and a second pipe body, the inert gas storage tank is located at the upper end of the cabinet body, and the second pipe body is located at the lower end of the cabinet body. A first pipe body is installed at one end of the inert gas storage tank, the second pipe body is rotationally connected with the first pipe body, a plurality of third pipe bodies are installed on the second pipe body, a plurality of spraying execution pipes are installed on the third pipe bodies, and the ends, away from the third pipe bodies, of the spraying execution pipes are fixedly connected with hot melting ends. According to the power distribution cabinet for power construction, the fire extinguishing assembly is added, so that when electrical devices in the power distribution cabinet for power construction are at high temperature or burn, the fire extinguishing assembly can timely spray inert gas for cooling or extinguishing fire through the spraying execution pipe, and occurrence of fire disasters of the power distribution cabinet can be reduced to a great extent or spreading of fire behaviors can be inhibited to a great extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of power distribution cabinets, and in particular relates to a power distribution cabinet for electric power construction. Background Art

[0002] Since general power construction often requires the use of high-power electrical equipment, the temperature of the electrical components inside the power distribution cabinet used for power construction is often too high. If the electrical equipment is not used properly during the power construction process, it is easy for the electrical components in the power distribution cabinet to overcurrent and overload, which may directly cause a fire. Especially in high-temperature areas or high-temperature environments, it is more likely to cause the temperature inside the power distribution cabinet used for power construction to rise, posing a greater fire safety hazard.

[0003] Therefore, in view of the above technical problems, it is necessary to provide a distribution cabinet for power construction. Utility Model Content

[0004] The utility model aims to provide a power distribution cabinet for electric power construction to solve the above problems.

[0005] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a distribution cabinet for power construction, including a cabinet body, a plurality of device fixing frames are fixedly connected in the cabinet body, a fire extinguishing assembly is installed on the cabinet body, and the fire extinguishing assembly includes an inert gas storage tank and a second tube body, the inert gas storage tank is located at the upper end of the cabinet body, a first tube body is installed at one end of the inert gas storage tank, the second tube body is rotatably connected to the first tube body, a plurality of third tube bodies are installed on the second tube body, a plurality of injection execution tubes are installed on the third tube body, and a hot melt end is fixedly connected to one end of the plurality of injection execution tubes away from the third tube body.

[0006] In one or more embodiments, a plurality of brackets matching the inert gas storage tanks are fixedly connected to the upper end of the cabinet, and the inert gas storage tanks are clamped in the brackets.

[0007] In one or more embodiments, a stabilizing pad is clamped on an end surface of the bracket that contacts the inert gas storage tank.

[0008] In one or more embodiments, a valve is installed on the first pipe body, and the valve is located on the upper side of the cabinet.

[0009] In one or more embodiments, a through hole matching the outer diameter of the first tube body is formed on the cabinet, and the first tube body passes through the through hole.

[0010] In one or more embodiments, a connecting piece is installed between the first tube body and the second tube body, and the first tube body is rotatably connected to the second tube body through the connecting piece.

[0011] In one or more embodiments, a first internal thread is provided on the inner wall of the connector, a first external thread is provided on the outer wall of the first tube body, and a second external thread is provided on the outer wall of the second tube body, and both the first external thread and the second external thread match the first internal thread.

[0012] In one or more embodiments, the hot melt end includes a first hot melt portion and a second hot melt portion, and the second hot melt portion is located at the top end of the first hot melt portion.

[0013] In one or more embodiments, a plurality of wire holes are opened at the lower end of the cabinet body, a switch handle is installed on the cabinet door, and the injection execution tube is an elastic tube.

[0014] In one or more embodiments, the inner tank of the inert gas storage tank is filled with one or a combination of nitrogen dioxide and nitrogen.

[0015] Compared with the prior art, the utility model installs a fire extinguishing component on the distribution cabinet, which can realize that when the electrical components inside the distribution cabinet used for power construction are at high temperature or burning, the fire extinguishing component can timely spray inert gas through the spray actuator for cooling or fire extinguishing, which can greatly reduce the occurrence of fire in the distribution cabinet or suppress the spread of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art description. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 The present invention is a schematic structural diagram of a power distribution cabinet for electric power construction in one embodiment of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure at A in the middle.

[0019] Figure 3 The present invention is a cross-sectional view of a power distribution cabinet for electric power construction in one embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of a first state of a power distribution cabinet for electric power construction in one embodiment of the utility model.

[0021] Figure 5 This is a schematic diagram of the first state disassembly of a power distribution cabinet for electric power construction in one embodiment of the utility model.

[0022] Figure 6This is a schematic diagram of the second state of a power distribution cabinet for electric power construction in one embodiment of the utility model.

[0023] Figure 7 The present invention is a schematic diagram of the structure of a fire extinguishing component of a power distribution cabinet for electric power construction in one embodiment of the present invention.

[0024] Figure 8 The present invention is a schematic structural diagram of a power distribution cabinet connector for electric power construction in one embodiment of the present invention.

[0025] Fig. 9 It is a structural schematic diagram of a jet execution pipe of a power distribution cabinet for electric power construction in one embodiment of the utility model.

[0026] Description of main reference numerals:

[0027] 1-cabinet body, 101-cabinet door, 102-switch handle, 103-wire hole, 104-through hole, 105-device fixing frame, 2-bracket, 201-stabilizing pad, 3-inert gas storage tank, 301-first tube body, 302-valve, 303-first external thread, 4-connecting piece, 401-first internal thread, 5-second tube body, 501-third tube body, 502-second external thread, 6-injection actuator, 601-first hot melt part, 602-second hot melt part. DETAILED DESCRIPTION

[0028] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0029] Unless explicitly stated otherwise, throughout the specification and claims, the term “comprise” or variations such as “include” or “comprising”, etc., will be understood to include the stated elements or components but not to exclude other elements or components.

[0030] like Figures 1 to 5 As shown, a power distribution cabinet for electric power construction in one embodiment of the utility model comprises a cabinet body 1 and an inert gas storage tank 3. The inert gas storage tank 3 is filled with one or a combination of carbon dioxide and nitrogen.

[0031] Preferably, the inert gas storage tank 3 is filled with 50% high-pressure carbon dioxide or liquid carbon dioxide and 50% high-pressure nitrogen or liquid nitrogen, which has a good fire extinguishing effect and lower cost.

[0032] The cabinet 1 is provided with a bracket 2, and a stabilizing pad 201 is clamped between the inert gas storage tank 3 and the bracket 2. The radian of the stabilizing pad 201 is the same as that of the inert gas storage tank 3. The inert gas storage tank 3 is installed on the bracket 2 and contacts the stabilizing pad 201.

[0033] like Figure 5 As shown, there are three brackets 2, and the stabilizing pad 201 is a flame-retardant rubber pad with anti-skid patterns, which can make the inert gas storage tank 3 more stable on the mounting bracket 2, and facilitate installation and disassembly.

[0034] like Figure 1 to Figure 2 As shown, in order to further achieve the stability of the fixing of the inert gas storage tank 3 on the bracket 2, the upper end of the bracket 2 is higher than the central axis of the inert gas storage tank 3. That is, the part with the largest outer diameter of the inert gas storage tank 3 is clamped in the bracket 2, and the bracket 2 has a certain elasticity, which can clamp the inert gas storage tank 3 in it without other fixing components.

[0035] like Figures 1 to 5 As shown, the outlet end of the inert gas storage tank 3 is equipped with a first tube body 301, and a valve 302 is installed on the first tube body 301. The valve 302 can open or close the inert gas storage tank 3. When the power distribution cabinet for power construction is working normally, the valve 302 is in an open state. During transportation and other processes, the valve 302 is in a closed state.

[0036] like Figure 3 , Figure 5 , Figure 7 and Figure 8 As shown, the first tube body 301 penetrates into the interior of the cabinet body 1 through the through hole 104 provided on the cabinet body 1, and the first tube body 301 and the second tube body 5 are connected through the connecting piece 4. At the same time, the second tube body 5 can be rotated through the first internal thread 4. The rotation of the second tube body 5 within the normal range will not affect the sealing between the second tube body 5 and the first internal thread 4, and between the first internal thread 4 and the first tube body 301.

[0037] Specifically, Figures 6 to 8 As shown, the connector 4 is provided with a first internal thread 401, the first tube 301 is provided with a first external thread 303 matching the first internal thread 401, and the second tube 5 is provided with a second external thread 502 matching the first internal thread 401. When connecting, the connector 4, the first tube 301, and the second tube 5 are simultaneously connected, and rotated rightward by 4. When the first external thread 303 and the second external thread 502 are engaged with the first internal thread 401 for a corresponding number of turns, the first tube 301 and the second tube 5 are connected through the connector 4 to form a concentric pipeline;

[0038] The second tube body 5 can rotate within a certain range under the action of the first internal thread 401 and the second external thread 502. When the fire extinguishing assembly needs to be replaced or inspected after extinguishing the fire, the connecting piece 4 is rotated leftward until the first tube body 301, the connecting piece 4 and the second tube body 5 are separated.

[0039] At the same time, a plurality of third tube bodies 501 are provided on the second tube body 5, and the third tube bodies 501 extend toward the installation position of the electrical components. A plurality of injection execution tubes 6 are installed on the third tube body 501, and the first hot melt part 601 is installed at one end of the injection execution tube 6 away from the third tube body 501.

[0040] like Figure 1 , Figure 6 , Figure 7 As shown, a plurality of wire holes 103 are provided at the bottom of the cabinet 1. When the electrical components in the cabinet 1 need to be wired or repaired, the switch handle 102 is pulled outward to open the cabinet door 101, and the second tube body 5 is rotated clockwise to make the third tube body 501 and the injection execution tube 6 move in a circle around the second tube body 5, so that the third tube body 501 is rotated to a position parallel to the side wall of the cabinet 1, so that the third tube body 501 does not affect the wiring or repair work.

[0041] The above-mentioned rotated position can also block the cabinet door 101, which is more conducive to wiring or maintenance work in the cabinet 1. When the wiring or maintenance work in the cabinet 1 is completed, the second tube body 5 is rotated counterclockwise to make the third tube body 501 in the initial position to ensure that the injection execution tube 6 can be aligned with the circuit components.

[0042] like Figures 7 to 9 As shown, a plurality of injection execution tubes 6 are fixed on the third tube body 501. The injection execution tubes 6 are elastic tubes. The injection execution tubes 6 can adjust the injection direction according to the position of the electrical components on the device fixing frame 105. The injection execution tubes 6 are blocked with a first hot melt portion 601 and a second hot melt portion 602. The first hot melt portion 601 and the second hot melt portion 602 are heat-sensitive materials, wherein the first hot melt portion 601 can be hot melt adhesive or other heat-sensitive materials, and the second hot melt portion 602 can be a heat-sensitive glass ball or other heat-sensitive materials.

[0043] Preferably, the first hot melt portion 601 is hot melt adhesive, and the second hot melt portion 602 is a thermosensitive glass ball, wherein the hot melt adhesive has a melting point of 100-150 degrees Celsius, and the thermosensitive glass ball has a rupture temperature of 68-75 degrees Celsius. In addition to being used to seal the end of the injection execution tube 6, the hot melt adhesive can also be used as a material for bonding the thermosensitive glass ball to the injection execution tube 6.

[0044] Specifically, when the fire in the cabinet is small, when the temperature exceeds the set temperature of the second hot melt part 602, the second hot melt part 602 ruptures, and a small part of the fire extinguishing medium is ejected. Since the second hot melt part 602 has a small diameter, the flow rate of the ejected fire extinguishing medium is small, which can achieve fire extinguishing and cooling while reducing the impact on other electrical components in the cabinet 1. When the flow rate of the fire extinguishing medium ejected from the second hot melt part 602 is insufficient to extinguish the fire, the fire in the cabinet 1 becomes larger and the temperature continues to rise, causing the first hot melt part 601 to melt. Since the diameter of the first hot melt part 601 is larger than that of the second hot melt part 602, the flow rate of the fire extinguishing medium ejected from the injection execution tube 6 increases, achieving the extinguishing of a larger fire.

[0045] When in use, the valve 302 is in the open state. When the electrical components on the device fixing frame 105 in the cabinet 1 catch fire and self-ignite, the second hot melt portion 602 and the first hot melt portion 601 on the spray actuator 6 at the closest distance melt and rupture. There is no blocking material at the hot melt end of the spray actuator 6, forming an open circuit. The fire extinguishing medium in the inert gas storage tank 3 flows to the hot melt end of the spray actuator 6 through the first tube body 301 and the second tube body 5 instantly, and is sprayed out through the hot melt end of the spray actuator 6, realizing the automatic fire extinguishing function. When multiple fires occur in the cabinet or the fire is raging, The first hot-melt portions 601 and the second hot-melt portions 602 are broken at multiple locations, and the hot-melt ends of several injection execution tubes 6 form an open circuit, and the fire-extinguishing medium is sprayed out at the same time to extinguish the fire. After the fire is extinguished, the connecting piece 4 is rotated counterclockwise, the first tube body 301 and the second tube body 5 are removed, and the first tube body 301 is taken out from the through hole 104. After the inert gas storage tank 3 is removed from above the bracket 2, the fire-extinguishing medium can be refilled. At the same time, the hot-melt ends on the injection execution tube 6 can re-seal the first hot-melt portion 601 and the second hot-melt portion 602 according to the actual usage quantity, so as to achieve the purpose of repeated use.

[0046] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A power distribution cabinet for electric power construction, comprising a cabinet body, wherein a plurality of device fixing frames are fixedly connected to the cabinet body, characterized in that: A fire extinguishing assembly is installed on the cabinet, and the fire extinguishing assembly includes an inert gas storage tank and a second tube body. The inert gas storage tank is located at the upper end of the cabinet, a first tube body is installed at one end of the inert gas storage tank, the second tube body is rotatably connected to the first tube body, a plurality of third tube bodies are installed on the second tube body, a plurality of injection execution tubes are installed on the third tube body, and a hot melt end is fixedly connected to one end of the plurality of injection execution tubes away from the third tube body.

2. A power distribution cabinet for electric power construction according to claim 1, characterized in that: A plurality of brackets matching the inert gas storage tanks are fixedly connected to the upper end of the cabinet, and the inert gas storage tanks are clamped in the brackets.

3. A power distribution cabinet for electric power construction according to claim 2, characterized in that: A stabilizing pad is laid on one end surface of the bracket that contacts the inert gas storage tank.

4. A power distribution cabinet for electric power construction according to claim 1, characterized in that: A valve is installed on the first pipe body, and the valve is located on the upper side of the cabinet.

5. A power distribution cabinet for electric power construction according to claim 1, characterized in that: The cabinet body is provided with a through hole matching the outer diameter of the first tube body, and the first tube body passes through the through hole.

6. A power distribution cabinet for electric power construction according to any one of claims 1 to 5, characterized in that: A connecting piece is installed between the first tube body and the second tube body, and the first tube body is rotatably connected to the second tube body through the connecting piece.

7. A power distribution cabinet for electric power construction according to claim 6, characterized in that: The inner wall of the connector is provided with a first internal thread, the outer wall of the first tube is provided with a first external thread, the outer wall of the second tube is provided with a second external thread, and both the first external thread and the second external thread match the first internal thread.

8. A power distribution cabinet for electric power construction according to claim 6, characterized in that: The injection execution tube is an elastic tube.

9. A power distribution cabinet for electric power construction according to claim 1, characterized in that: The hot melt end includes a first hot melt portion and a second hot melt portion, and the second hot melt portion is located at the top end of the first hot melt portion.

10. A power distribution cabinet for electric power construction according to claim 1, characterized in that: The inner tank of the inert gas storage tank is filled with one or a combination of nitrogen dioxide and nitrogen.

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