Wire fixing structure

Abstract

The invention relates to the technical field of wire fixing, and particularly discloses a wire fixing structure which comprises a separator and a cutting member, the separator comprises a lower shell and an upper shell, the upper shell is connected to the lower shell, a plurality of separation cavities are formed between the lower shell and the upper shell and used for separating a plurality of thin wires, and the cutting member is used for cutting the thin wires. The cutting part comprises a connecting part, moving parts, second elastic parts, cutters and guide sleeves, the moving parts are connected with the lower shell through the second elastic parts, the two ends of the connecting part are connected with the two moving parts respectively, the guide sleeves are connected into the upper shell, the connecting part penetrates through the two guide sleeves, and the two ends of the connecting part are connected with the two elastic parts respectively. The guide sleeve is used for guiding the two ends of the connecting part, the connecting part locks the moving part, the second elastic part is in a compressed state, and the cutter is connected to the moving part and located below the thin electric wire. According to the wire fixing structure, fire can be prevented from spreading, so that the surrounding thin wires are prevented from being ignited.

Description

Technical Field

[0001] The present invention relates to the technical field of wire fixing, and specifically relates to a wire fixing structure. Background Art

[0002] The power distribution cabinet is a general term for the motor control center. The power distribution cabinet is mainly divided into power distribution cabinets, lighting distribution cabinets, and metering cabinets. It is the final equipment of the power distribution system. The power distribution cabinet is mainly used in occasions where the load is relatively dispersed and the number of circuits is small. They distribute the electric energy of a certain circuit of the upper-level power distribution equipment to the nearby load. Moreover, the power distribution cabinet is mainly used in places for emergency power supply. When a certain power consumption place loses power, it is necessary to move the power distribution cabinet to this place in time for power supply operations. When the power distribution cabinet is assembled, there are mostly many wires connected inside it for controlling different circuits, and wires of appropriate thickness will be used according to specific situations when connecting electricity.

[0003] A Chinese patent document with the publication number CN112688190B discloses a power distribution cabinet structure convenient for emergency power supply, including a power distribution cabinet box body. A plurality of heat dissipation holes inclined downward are opened on both inner walls of the power distribution cabinet box body. Four walking wheels are rotatably installed at the bottom of the power distribution cabinet box body. First slots with open fronts are opened on both inner walls of the power distribution cabinet box body. A first positioning rod is fixedly installed on the bottom inner wall of the first slot. A moving block is slidably sleeved on the first positioning rod. The top of the moving block located on the left side of the two moving blocks is in movable contact with a T-shaped quick-fixing bolt. The left side of the T-shaped quick-fixing bolt extends to the left side of the power distribution cabinet box body. The left first positioning rod of the two first positioning rods is threadedly sleeved on the T-shaped quick-fixing bolt. A wire management mechanism is provided inside the power distribution cabinet box body.

[0004] During use, pull the ring forward. The ring slides forward on the two T-shaped positioning rods. The ring pulls the two flexible steel cables to slide on the rear sides of the corresponding fixed pulleys respectively. The flexible steel cables pull the corresponding clamping rods to slide in the positioning tubes towards the direction close to the screw rod. While the clamping rods move, the corresponding second springs are compressed and gradually move out of the clamping grooves, thereby releasing the fixation of the second fixing plate. When the ring moves forward to contact the rear side of the mounting block, continue to pull the ring forward. The ring drives the second fixing plate to move forward successively through the mounting block, the second bearing, the screw rod and the first bearing. The second fixing plate is removed from the two second positioning rods. Immediately, the electric wire or cable is placed into the corresponding first semi-circular wire-releasing holes in sequence. Immediately, align the sliding holes with the corresponding second positioning rods. Move the second fixing plate backward. While the second fixing plate moves backward, it is sleeved on the two second positioning rods. When the rear side of the second fixing plate contacts the front side of the first fixing plate, at this time, the clamping rods are aligned with the corresponding clamping grooves. Relax the forward pulling force on the ring. At this time, the second springs in the compressed state reset. The elastic force of the second springs drives the corresponding clamping rods to move away from the screw rod. The clamping rods gradually move into the corresponding clamping grooves. The clamping rods are clamped with the corresponding clamping grooves, thereby fixing the second fixing plate. At this time, the electric wire or cable is located in the corresponding circular wire-releasing holes.

[0005] However, the above patent document still has the following deficiencies: The heat generated when the current passes through the thin electric wire will increase the temperature of the electric wire, thereby accelerating the aging and damage of the insulating layer. And the thin electric wires connected between two electrical components in the power distribution cabinet are usually numerous and concentrated. Once one of the thin electric wires has a short circuit and catches fire due to the aging or damage of the insulating layer, it is easy to ignite the surrounding thin electric wires. Summary of the Invention

[0006] The present invention provides a wire fixing structure, aiming to solve the problem that when one of the thin electric wires has a short circuit and catches fire due to the aging or damage of the insulating layer in the related art, it is easy to ignite the surrounding thin electric wires.

[0007] The wire fixing structure of the present invention includes a separating member and a cutting member. The separating member includes a lower housing and an upper housing. The upper housing is connected to the lower housing. A plurality of separating cavities are formed between the lower housing and the upper housing for separating a plurality of thin electric wires. The cutting members are provided in plurality. The plurality of cutting members are respectively connected in the plurality of separating cavities. The cutting member includes a connecting portion, a moving portion, an elastic portion II, a cutter and a guide sleeve. The moving portion is connected to the lower housing through the elastic portion II. The moving portion, the elastic portion II, the cutter and the guide sleeve are all provided in two. The two ends of the connecting portion are respectively connected to the two moving portions. The guide sleeve is connected in the upper housing. The connecting portion penetrates through the two guide sleeves. The guide sleeve is used for guiding the two ends of the connecting portion, and the connecting portion locks the moving portion and makes the elastic portion II in a compressed state. The cutter is connected to the moving portion. The cutter is located below the thin electric wire.

[0008] The effect is as follows: After the lower housing is installed in the power distribution cabinet, the staff manually move multiple thin wires so that the multiple thin wires all pass through the upper housing, and then the upper housing is installed on the lower housing. At this time, multiple separation chambers are formed between the upper housing and the lower housing, and the multiple thin wires are respectively located in the multiple separation chambers. The multiple thin wires are separated by the multiple separation chambers. When a certain thin wire catches fire due to the aging or damage of the insulating layer, the generated flame can melt the connecting part, thereby releasing the locking of the two moving parts. At this time, the compressed elastic part two can push the moving part and the cutter to move towards the direction close to the thin wire, and cut off the thin wire on fire, thereby preventing the spread of the fire and avoiding igniting the surrounding thin wires.

[0009] Preferably, the cutting part further includes a movable part and a fixed part. The movable part is connected to the moving part, the fixed part is threadedly connected to the movable part, and the connecting part is connected to the movable part through the fixed part.

[0010] The effect is as follows: The connecting part is fixed to the movable part through the fixed part, so as to facilitate the disassembly or replacement of the connecting part.

[0011] Preferably, a fire extinguishing part is further included. A plurality of fire extinguishing parts are provided, and the plurality of fire extinguishing parts are all inserted on the upper housing, and the plurality of fire extinguishing parts are respectively located in the plurality of separation chambers.

[0012] Preferably, the fire extinguishing part includes an installation shell, an airbag, an elastic telescopic part, a pressing part and an air outlet structure. The installation shell is inserted into the separation chamber, the airbag is connected inside the installation shell, the airbag is filled with carbon dioxide gas, the elastic telescopic part is connected to the installation shell, the pressing part is connected to the bottom end of the elastic telescopic part, the bottom of the pressing part is in contact with the top of the airbag, the elastic telescopic part is in a compressed state, and a plurality of air outlet structures are provided. The plurality of air outlet structures are all connected to the bottom of the airbag.

[0013] The effect is as follows: The high temperature of the flame generated by the fire of the thin wire can open the air outlet structure near the fire part of the thin wire. At this time, the elastic telescopic part exerts a downward thrust on the pressing part, so that the carbon dioxide gas in the airbag is blown towards the fire part of the thin wire through the opened air outlet structure. The oxygen around the fire part of the thin wire is blown away by the carbon dioxide gas, so that the fire part of the thin wire goes out due to lack of oxygen, thereby achieving the purpose of extinguishing the fire at the fire part of the thin wire.

[0014] Preferably, the air outlet structure includes an air outlet pipe, a blocking part and an adhesive part. The air outlet pipe is connected to the bottom of the airbag, the adhesive part is coated on the outside of the blocking part, and the blocking part is adhesively connected to the air outlet pipe through the adhesive part.

[0015] The effect is as follows: The high temperature of the flame generated by the fire of the thin wire can melt the adhesive part. At this time, the air pressure in the airbag can blow the blocking part out of the air outlet pipe, thereby opening the air outlet pipe.

[0016] Preferably, the elastic telescopic part includes a sleeve rod, a plug rod and a compression spring. The sleeve rod is connected to the installation shell, the plug rod is inserted into the sleeve rod, the pressing part is connected to the plug rod, and the compression spring is connected between the sleeve rod and the plug rod.

[0017] Preferably, the cutting member further includes a support part. The support part is connected inside the lower shell body and is located in the partition cavity. An installation groove is arranged on the inner side of the support part, and the connecting part is inserted into the installation groove.

[0018] It is characterized in that: the connecting part can be supported by the support part so that the connecting part fits with the thin wire, so that when the thin wire catches fire due to the aging or damage of the insulating layer, the connecting part can be quickly melted.

[0019] Preferably, an inflation head is connected to the bottom of the airbag, and a one-way intake valve is installed on the inflation head.

[0020] The effect is that: the inflation head can be connected to an external carbon dioxide gas transmission device, and the carbon dioxide gas is conveyed into the airbag through the inflation head by the external carbon dioxide gas transmission device, thereby pushing the pressing part upward, so that the plug rod moves in the direction of extending into the sleeve rod, and compresses the compression spring so that the compression spring is in a state of storing energy. The one-way intake valve can prevent the carbon dioxide gas in the airbag from being discharged outward through the inflation head.

[0021] Preferably, the airbag is made of a fireproof material.

[0022] The effect is that: the airbag made of a fireproof material can prevent the thin wire from igniting the airbag when the thin wire catches fire due to the aging or damage of the insulating layer.

[0023] Preferably, a connecting structure is connected between the lower shell body and the upper shell body for fixing the upper shell body on the lower shell body.

[0024] The beneficial effects of the present invention are: 1. After the lower shell body and the upper shell body are connected, a plurality of partition cavities can be formed. Through the plurality of partition cavities, a plurality of thin wires can be separated. And when a certain thin wire catches fire due to the aging or damage of the insulating layer, the generated flame can melt the connecting part, thereby releasing the locking of the two moving parts. At this time, the compressed elastic part two can push the moving part and the cutter to move, and cut off the thin wire on fire, thereby preventing the spread of the fire and avoiding igniting the surrounding thin wires.

[0025] 2. The high temperature of the flame generated by the fire of the thin wire can melt the bonding part on the air outlet structure near the fire part of the thin wire. At this time, the elastic telescopic part exerts a downward thrust on the pressing part, and the air pressure of the carbon dioxide gas in the airbag increases, so that the carbon dioxide gas in the airbag blows the blocking part out of the air outlet pipe, thereby opening the air outlet pipe, and the carbon dioxide gas is blown from the opened air outlet pipe to the fire part of the thin wire, and the oxygen around the fire part of the thin wire is blown away by the carbon dioxide gas, so that the fire part of the thin wire is extinguished due to lack of oxygen, thereby achieving the purpose of extinguishing the fire at the fire part of the thin wire. Brief Description of the Drawings

[0026] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0027] Figure 2 is a planar structural schematic diagram of the present invention.

[0028] Figure 3 is a sectional structural schematic diagram of the present invention.

[0029] Figure 4 is a sectional structural schematic diagram of the connection structure of the present invention.

[0030] Figure 5 is of the present invention Figure 3 magnified structural schematic diagram at A in

[0031] Figure 6 is a sectional structural schematic diagram of the fire extinguishing member of the present invention.

[0032] Figure 7 is a planar structural schematic diagram of the support part and the connection part of the present invention.

[0033] Figure 8 is a sectional structural schematic diagram of the air outlet structure of the present invention.

[0034] Reference Signs: 1. Partition member; 11. Lower housing; 111. Ventilation opening; 12. Upper housing; 13. Connection structure; 131. Insertion part; 132. Mounting seat; 133. Mounting cavity; 134. Locking groove; 135. Lock tongue; 136. Inclined surface; 137. First elastic part; 14. Partition cavity; 15. Leg; 16. First clamping part; 17. Second clamping part; 2. Cutting member; 21. Support part; 211. Mounting groove; 212. Air guiding groove; 22. Connection part; 23. Moving part; 24. Second elastic part; 25. Cutting knife; 26. Guide sleeve; 27. Moving part; 28. Fixed part; 3. Fire extinguishing member; 31. Mounting shell; 32. Airbag; 33. Elastic telescopic part; 34. Pressing part; 35. Air outlet structure; 351. Air outlet pipe; 352. Blocking part; 353. Bonding part; 4. Thin wire. Detailed Embodiments

[0035] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0036] As Figures 1 to 8 shown, the wire fixing structure of the present invention includes a separator 1, a cutting member 2, and a fire extinguishing member 3. The separator 1 can separate and fix a plurality of thin wires 4, so that when one of the thin wires 4 catches fire due to aging or damage of the insulating layer, it will not ignite the surrounding wires. A plurality of cutting members 2 are provided, and the plurality of cutting members 2 are all connected in the separator 1, and the plurality of cutting members 2 are arranged in one-to-one correspondence with the plurality of thin wires 4. When one of the thin wires 4 catches fire, the cutting member 2 corresponding to the thin wire 4 can cut off the thin wire 4, thereby preventing the spread of the fire and avoiding igniting other surrounding thin wires 4, reducing losses. A plurality of fire extinguishing members 3 are provided, and the plurality of fire extinguishing members 3 are all connected in the separator 1, and the plurality of fire extinguishing members 3 are arranged in one-to-one correspondence with the plurality of thin wires 4. When one of the thin wires 4 catches fire, the fire extinguishing member 3 corresponding to the thin wire 4 can extinguish the fire on the thin wire 4, further preventing the spread of the fire.

[0037] When installing a plurality of thin wires 4, the separator 1 separates and fixes the plurality of thin wires 4. When one of the thin wires 4 catches fire due to aging or damage of the insulating layer, the generated flame can trigger the cutting member 2 corresponding to the thin wire 4, so that the cutting member 2 cuts off the burning thin wire 4, and at the same time triggers the fire extinguishing member 3 corresponding to the thin wire 4, and the fire extinguishing member 3 performs a fire extinguishing operation on the burning part of the thin wire 4, thereby preventing the spread of the fire and avoiding igniting other surrounding thin wires 4, reducing losses.

[0038] As Figures 1 to 4As shown in the figure, the separator 1 includes a lower housing 11, an upper housing 12, a connecting structure 13, legs 15 and a clamping structure. The upper housing 12 is installed on the top of the lower housing 11. A plurality of separation cavities 14 are provided between the lower housing 11 and the upper housing 12 for separating a plurality of thin wires 4. In case a certain thin wire 4 catches fire due to the aging or damage of the insulating layer, the thin wire 4 can be separated to prevent the burning thin wire 4 from igniting other thin wires 4 and reduce losses. A plurality of ventilation openings 111 are provided on the lower housing 11 to make all the separation cavities 14 communicate with the outside, so as to ventilate the separation cavities 14 and thus dissipate heat from the thin wires 4 in the separation cavities 14. The connecting structure 13 is connected between the lower housing 11 and the upper housing 12 for connecting the lower housing 11 and the upper housing 12 together. The clamping structure is provided in multiple groups, and two groups of clamping structures are connected in each separation cavity 14 for clamping and fixing the two ends of the thin wire 4 located in the separation cavity 14 respectively. The clamping structure includes a first clamping part 16 and a second clamping part 17. The first clamping part 16 is connected in the upper housing 12, and the second clamping part 17 is connected in the lower housing 11. After the upper housing 12 is fixed to the lower housing 11 through the connecting structure 13, the thin wire 4 is fixed by the first clamping part 16 and the second clamping part 17 on the clamping structure; Continue to refer to Figures 1 to 4 As shown in the figure, the connecting structure 13 includes a plug-in part 131, a mounting seat 132, a locking tongue 135 and a first elastic part 137. The plug-in part 131 is connected to the upper housing 12, and the mounting seat 132 is connected to the lower housing 11. An installation cavity 133 is provided on the mounting seat 132. The bottom of the plug-in part 131 is inserted into the installation cavity 133. A locking groove 134 is provided on the plug-in part 131. The locking tongue 135 is inserted into the installation cavity 133, and one end of the locking tongue 135 away from the lower housing 11 penetrates through the mounting seat 132. The locking tongue 135 is inserted into the locking groove 134. A slope 136 is provided on the locking tongue 135. The first elastic part 137 is a compression spring. The first elastic part 137 is connected between the locking tongue 135 and the inner wall of the installation cavity 133 for driving the locking tongue 135 to reset.

[0039] When separating multiple thin wires 4, first fix the lower housing 11 inside the power distribution cabinet, and pass the multiple thin wires 4 through the lower housing 11. Then move the upper housing 12 to the top of the lower housing 11 and press down the upper housing 12 so that the insertion part 131 is inserted into the installation cavity 133 on the mounting seat 132. During this process, the insertion part 131 contacts the inclined surface 136 of the locking tongue 135, and the insertion part 131 pushes the inclined surface 136 of the locking tongue 135, so that the locking tongue 135 moves towards the direction close to the lower housing 11 until the inclined surface 136 of the locking tongue 135 separates from the insertion part 131, and at the same time compresses the first elastic part 137. After the locking tongue 135 is aligned with the locking groove 134 on the insertion part 131, the locking tongue 135 is pushed under the action of the first elastic part 137, so that the locking tongue 135 moves away from the lower housing 11 and the locking tongue 135 is inserted into the locking groove 134, thus realizing the fixed connection between the lower housing 11 and the upper housing 12.

[0040] When disassembling the upper housing 12 from the lower housing 11, manually press the locking tongue 135 so that the locking tongue 135 moves towards the direction close to the lower housing 11 until the locking tongue 135 disengages from the locking groove 134, thereby releasing the locking of the insertion part 131, and then the upper housing 12 can be removed from the lower housing 11.

[0041] Such as Figures 2 to 6As shown in the figure, a plurality of cutting members 2 are provided. The plurality of cutting members 2 are respectively installed in a plurality of partition cavities 14. When a thin wire 4 in a certain partition cavity 14 catches fire due to aging or damage of the insulating layer, the cutting member 2 in the partition cavity 14 can cut off the thin wire 4, thereby preventing the spread of the fire, avoiding ignition of the surrounding thin wires 4, reducing losses. The cutting member 2 includes a support portion 21, a connecting portion 22, a guide sleeve 26, a cutting structure and a fixing structure. The support portion 21 is connected inside the lower housing 11 and is located in the partition cavity 14. The support portion 21 is V-shaped, and the thin wire 4 is located inside the support portion 21. Two cutting structures are provided. The two cutting structures are respectively connected to the inner ends of both sides of the partition cavity 14. The support portion 21 is located between the two cutting structures. The thin wire 4 can be cut off by the two cutting structures. Two fixing structures are provided. The two fixing structures are respectively connected to the two cutting structures. Both ends of the connecting portion 22 are respectively connected to the two cutting structures through the two fixing structures. The connecting portion 22 is made of a flexible plastic material. An installation groove 211 is provided inside the support portion 21. The connecting portion 22 is inserted into the installation groove 211 inside the support portion 21. The support portion 21 can support the connecting portion 22 so that the connecting portion 22 fits the thin wire 4. The two cutting structures can be locked by the connecting portion 22. When the thin wire 4 catches fire due to aging or damage of the insulating layer, the generated flame can melt the connecting portion 22, so that the connecting portion 22 releases the lock on the two cutting structures, and then the two cutting structures cut off the thin wire 4. Two guide sleeves 26 are provided. Both of the two guide sleeves 26 are connected to the inner bottom wall of the upper housing 12. The connecting portion 22 passes through the two guide sleeves 26. The two guide sleeves 26 can guide both ends of the connecting portion 22.

[0042] Continue to refer to Figures 2 to 6 As shown in the figure, the cutting structure includes a moving portion 23, a second elastic portion 24 and a cutter 25. The moving portion 23 is inserted into the lower housing 11. The moving portion 23 is made of a non-conductive ceramic material. The second elastic portion 24 is a compression spring. The second elastic portion 24 is connected between the moving portion 23 and the lower housing 11. The cutter 25 is connected to the top of the moving portion 23. When the cutting structure is locked by the connecting portion 22, the second elastic portion 24 is in a compressed state. After the connecting portion 22 is melted, the lock of the cutting structure is released. At this time, the second elastic portion 24 drives the moving portion 23 and the cutter 25 to move towards the direction close to the thin wire 4, so that the cutter 25 cuts off the thin wire 4 and passes over the thin wire 4, and the cutter 25 does not contact the thin wire 4, thereby avoiding the cutter 25 contacting and conducting electricity with the thin wire 4 after stopping moving.

[0043] Continue to refer to Figures 2 to 6As shown, the fixing structure includes a movable part 27 and a fixing part 28. The movable part 27 is connected to the moving part 23, and the fixing part 28 is threadedly connected to the movable part 27. One end of the connecting part 22 is inserted into the movable part 27, and the connecting part 22 can be squeezed and fixed on the movable part 27 through the fixing part 28, so as to facilitate the subsequent disassembly and replacement of the connecting part 22. When the moving part 23 drives the cutter 25 to move upward and cut off the thin wire 4, and after the cutter 25 passes over the thin wire 4, the two ends of the cut thin wire 4 can be squeezed and fixed on the first clamping part 16 through the movable parts 27 of the two fixing structures, so as to facilitate the fire extinguishing member 3 to extinguish the fire at the ignition point of the thin wire 4.

[0044] When the thin wire 4 catches fire due to the aging or damage of the insulating layer, the generated flame will melt the connecting part 22, thereby releasing the locking of the cutting structure, so that the second elastic part 24 drives the moving part 23 and the cutter 25 to move towards the direction close to the thin wire 4, so that the cutter 25 cuts off the thin wire 4 and passes over the thin wire 4, and the cutter 25 does not contact the thin wire 4. When the moving part 23 moves, it drives the movable part 27 close to the thin wire 4. At this time, the two ends of the cut thin wire 4 can be squeezed and fixed on the first clamping part 16 through the movable parts 27 of the two fixing structures, so as to facilitate the fire extinguishing member 3 to extinguish the fire at the ignition point of the thin wire 4.

[0045] A monitoring device is installed on the partition 1. The monitoring device monitors the thin wire 4. After the thin wire 4 catches fire due to the aging or damage of the insulating layer, the monitoring device can cut off the main power switch or the corresponding line circuit breaker, so as to facilitate the subsequent safe cutting of the thin wire 4 (the monitoring device is a prior art and will not be elaborated here). At this time, after cutting off the main power switch or the corresponding line circuit breaker, although the thin wire 4 is no longer conductive, affected by the insulating layer of the thin wire 4 itself, the insulating layer will still continue to burn. At this time, the burning thin wire 4 is separated by the partition 1, and the burning part of the thin wire 4 is cut off by the cutting member 2, which can prevent the fire from spreading to other thin wires 4 and reduce the loss.

[0046] Such as Figure 3 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, multiple fire extinguishing components 3 are provided. The multiple fire extinguishing components 3 are respectively inserted into multiple upper shells 12 and are respectively located in multiple partition chambers 14. The fire extinguishing component 3 includes an installation shell 31, an airbag 32, an elastic telescopic part 33, a pressing part 34 and an air outlet structure 35. The installation shell 31 is inserted into the upper shell 12 and extends into the partition chamber 14. The bottom of the installation shell 31 is hollow. The airbag 32 is connected inside the installation shell 31. The elastic telescopic part 33 is connected to the inner top wall of the upper shell 12 and is located above the airbag 32. The elastic telescopic part 33 includes a sleeve rod, a plug rod and a compression spring. The sleeve rod is connected to the inner top wall of the upper shell 12. The plug rod is inserted into the bottom of the sleeve rod. The compression spring is connected between the sleeve rod and the plug rod. The pressing part 34 is connected to the bottom of the plug rod, and the bottom of the pressing part 34 is in contact with the top of the airbag 32. The airbag 32 is filled with carbon dioxide gas. When the airbag 32 is filled with carbon dioxide, it can push the pressing part 34 upward, so that the plug rod moves in the direction of extending into the sleeve rod and compresses the compression spring, so that the compression spring is in a state of storing energy. Multiple air outlet structures 35 are provided. The multiple air outlet structures 35 are all connected to the bottom of the airbag 32 and are equidistantly arranged. When the insulating layer of the thin wire 4 ages or is damaged and catches fire, the air outlet structure 35 close to the fire area of the thin wire 4 can be opened, and under the action of the compression spring, the pressing part 34 is pushed to squeeze the airbag 32, and the carbon dioxide gas in the airbag 32 is extruded, so that the carbon dioxide gas in the airbag 32 can be blown to the fire area of the thin wire 4 through the air outlet structure 35 corresponding to the fire area of the thin wire 4, and the oxygen around the fire area of the thin wire 4 is blown away by the carbon dioxide gas, so that the fire area of the thin wire 4 is extinguished due to lack of oxygen, so as to achieve the purpose of extinguishing the fire area of the thin wire 4. The airbag 32 is made of fireproof material to prevent the airbag 32 from being ignited when the thin wire 4 catches fire due to the aging or damage of the insulating layer. The bottom of the airbag 32 is connected with an inflation head, and a one-way intake valve is installed on the inflation head. When delivering carbon dioxide gas into the airbag 32, the inflation head can be connected to an external carbon dioxide gas delivery device, and the carbon dioxide gas is delivered into the airbag 32 through the inflation head by the external carbon dioxide gas delivery device, so as to push the pressing part 34 upward, so that the plug rod moves in the direction of extending into the sleeve rod and compresses the compression spring, so that the compression spring is in a state of storing energy. The one-way intake valve can prevent the carbon dioxide gas in the airbag 32 from being discharged outward through the inflation head.

[0047] Continue to refer to Figure 3 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, the air outlet structure 35 includes an air outlet pipe 351, a plugging part 352, and an adhesive part 353. The air outlet pipe 351 is connected to the bottom of the airbag 32. The adhesive part 353 is glue, and the adhesive part 353 is coated on the outer side of the plugging part 352. The plugging part 352 is adhesively connected to the air outlet pipe 351 through the adhesive part 353, thereby plugging and sealing the air outlet pipe 351. When the thin wire 4 catches fire due to the aging or damage of the insulating layer, the air outlet structure 35 close to the generated flame is exposed to high temperature, and the adhesive part 353 on the air outlet structure 35 is melted. At this time, the elastic telescopic part 33 pushes the pressing part 34 to apply a downward pressure on the airbag 32, so that the air pressure in the airbag 32 increases. The plugging part 352 can be blown out of the air outlet pipe 351 through the air pressure in the airbag 32, so that the air outlet pipe 351 is no longer blocked and sealed by the plugging part 352. The carbon dioxide gas in the airbag 32 can be blown to the fire area of the thin wire 4 from the air outlet pipe 351, thereby blowing away the oxygen around the fire area of the thin wire 4, so that the fire area of the thin wire 4 goes out due to lack of oxygen. A plurality of air guiding grooves 212 are arranged on the inner side of the supporting part 21, which are used to guide the carbon dioxide gas to the fire area of the thin wire 4 to enhance the fire extinguishing effect on the thin wire 4.

[0048] Before installing the plurality of fire extinguishing members 3 on the partition member 1, first, carbon dioxide gas is transported into the airbag 32 of the plurality of fire extinguishing members 3 through an external carbon dioxide gas transportation device, thereby pushing the pressing part 34 upward, so that the insertion rod moves in the direction of extending into the sleeve rod, and compresses the compression spring, so that the compression spring is in a state of storing energy. Subsequently, the plurality of fire extinguishing members 3 are installed on the partition member 1. When the thin wire 4 catches fire due to the aging or damage of the insulating layer, the air outlet structure 35 close to the generated flame is exposed to high temperature, and the adhesive part 353 on the air outlet structure 35 is melted. At this time, the elastic telescopic part 33 pushes the pressing part 34 to apply a downward pressure on the airbag 32, so that the air pressure in the airbag 32 increases. The plugging part 352 can be blown out of the air outlet pipe 351 through the air pressure in the airbag 32, so that the air outlet pipe 351 is no longer blocked and sealed by the plugging part 352. The carbon dioxide gas in the airbag 32 can be blown to the fire area of the thin wire 4 from the air outlet pipe 351, thereby blowing away the oxygen around the fire area of the thin wire 4, so that the fire area of the thin wire 4 goes out due to lack of oxygen.

[0049] Working principle: Before installing the plurality of fire extinguishing members 3 on the partition member 1, first, carbon dioxide gas is transported into the airbag 32 of the plurality of fire extinguishing members 3 through the inflation head on the airbag 32 by an external carbon dioxide gas transportation device, thereby pushing the pressing part 34 upward, so that the insertion rod moves in the direction of extending into the sleeve rod, and compresses the compression spring, so that the compression spring is in a state of storing energy. Subsequently, the plurality of fire extinguishing members 3 are installed on the partition member 1.

[0050] Fix the lower housing 11 inside the power distribution cabinet, place multiple thin wires 4 respectively in multiple partition cavities 14 inside the lower housing 11, then move the upper housing 12 to the top of the lower housing 11 and press down the upper housing 12 so that the plug-in part 131 is inserted into the installation cavity 133 on the mounting seat 132. During this process, the plug-in part 131 pushes the inclined surface 136 of the locking tongue 135, so that the locking tongue 135 moves towards the direction close to the lower housing 11 and compresses the first elastic part 137. After the locking tongue 135 is aligned with the locking groove 134 on the plug-in part 131, the locking tongue 135 is inserted into the locking groove 134 under the action of the first elastic part 137, thereby fixing the lower housing 11 and the upper housing 12.

[0051] When one of the thin wires 4 catches fire due to the aging or damage of the insulating layer, the monitoring device cuts off the main power switch or the corresponding line circuit breaker so that the thin wire 4 is de-energized. The flame generated on the thin wire 4 melts the connecting part 22. At this time, the second elastic part 24 drives the moving part 23 and the cutter 25 to move upward, so that the cutter 25 cuts off the thin wire 4 and moves over the thin wire 4, so that the cutter 25 does not contact the thin wire 4. When the moving part 23 moves upward, it drives the movable part 27 to move upward. Through the movable parts 27 on the two fixing structures, the two ends of the cut thin wire 4 can be squeezed and fixed on the first clamping part 16, and then the cut thin wire 4 is retained in the partition cavity 14.

[0052] When the thin wire 4 catches fire due to the aging or damage of the insulating layer, the air outlet structure 35 close to the generated flame is exposed to high temperature, and the bonding part 353 on the air outlet structure 35 is melted. At this time, because the elastic telescopic part 33 pushes the pressing part 34 to apply a downward pressure to the airbag 32, the air pressure in the airbag 32 increases. Through the air pressure in the airbag 32, the blocking part 352 can be blown out of the air outlet pipe 351 so that the air outlet pipe 351 is no longer blocked. The carbon dioxide gas in the airbag 32 can be blown from the air outlet pipe 351 to the fire area of the thin wire 4, thereby blowing away the oxygen around the fire area of the thin wire 4, so that the fire area of the thin wire 4 goes out due to lack of oxygen.

[0053] When disassembling the upper housing 12 from the lower housing 11, press the locking tongue 135 so that the locking tongue 135 moves towards the direction close to the lower housing 11, so that the locking tongue 135 is disengaged from the locking groove 134, thereby releasing the locking of the plug-in part 131, and then the upper housing 12 can be removed from the lower housing 11.

[0054] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A wire fixing structure, characterized in that, It includes a separator (1) and a cutting member (2). The separator (1) includes a lower housing (11) and an upper housing (12). The upper housing (12) is connected to the lower housing (11). A plurality of separation cavities (14) are formed between the lower housing (11) and the upper housing (12) for separating a plurality of thin electric wires. The cutting members (2) are provided in plurality, and the plurality of cutting members (2) are respectively connected in the plurality of separation cavities (14). The cutting member (2) includes a connecting portion (22), a moving portion (23), a second elastic portion (24), a cutter (25) and a guide sleeve (26). The moving portion (23) is connected to the lower housing (11) through the second elastic portion (24). The moving portion (23), the second elastic portion (24), the cutter (25) and the guide sleeve (26) are all provided in two. The two ends of the connecting portion (22) are respectively connected to the two moving portions (23). The guide sleeve (26) is connected inside the upper housing (12). The connecting portion (22) passes through the two guide sleeves (26). The guide sleeve (26) is used for guiding the two ends of the connecting portion (22), and the connecting portion (22) locks the moving portion (23) and makes the second elastic portion (24) in a compressed state. The cutter (25) is connected to the moving portion (23), and the cutter (25) is located below the thin electric wire.

2. The wire fixing structure according to claim 1, wherein The cutting member (2) further includes a movable portion (27) and a fixed portion (28). The movable portion (27) is connected to the moving portion (23). The fixed portion (28) is threadedly connected to the movable portion (27). The connecting portion (22) is connected to the movable portion (27) through the fixed portion (28).

3. The wire fixing structure according to claim 1, wherein, It further includes a fire extinguishing member (3). The fire extinguishing members (3) are provided in plurality. The plurality of fire extinguishing members (3) are all inserted into the upper housing (12), and the plurality of fire extinguishing members (3) are respectively located in the plurality of separation cavities (14).

4. The wire fixing structure according to claim 3, characterized in that, The fire extinguishing member (3) includes an installation shell (31), an airbag (32), an elastic telescopic portion (33), a pressing portion (34) and an air outlet structure (35). The installation shell (31) is inserted into the separation cavity (14). The airbag (32) is connected inside the installation shell (31). The airbag (32) is filled with carbon dioxide gas. The elastic telescopic portion (33) is connected to the installation shell (31). The pressing portion (34) is connected to the bottom end of the elastic telescopic portion (33). The bottom of the pressing portion (34) is in contact with the top of the airbag (32). The elastic telescopic portion (33) is in a compressed state. The air outlet structures (35) are provided in plurality, and the plurality of air outlet structures (35) are all connected to the bottom of the airbag (32).

5. The wire fixing structure according to claim 4, characterized in that, The air outlet structure (35) includes an air outlet pipe (351), a blocking portion (352) and an adhesive portion (353). The air outlet pipe (351) is connected to the bottom of the airbag (32). The adhesive portion (353) is coated on the outside of the blocking portion (352). The blocking portion (352) is adhesively connected to the air outlet pipe (351) through the adhesive portion (353).

6. The wire fixing structure according to claim 4, characterized in that, The elastic telescopic portion (33) includes a sleeve rod, a plug rod and a compression spring. The sleeve rod is connected to the installation shell (31). The plug rod is inserted into the sleeve rod. The pressing portion (34) is connected to the plug rod. The compression spring is connected between the sleeve rod and the plug rod.

7. The wire fixing structure according to claim 1, characterized in that, The cutting member (2) further includes a support portion (21). The support portion (21) is connected inside the lower housing (11), and the support portion (21) is located in the partition cavity (14). An installation groove (211) is provided on the inner side of the support portion (21), and the connecting portion (22) is inserted into the installation groove (211).

8. The wire fixing structure according to claim 4, characterized in that, The bottom of the airbag (32) is connected with an inflation head, and a one-way intake valve is installed on the inflation head.

9. The wire fixing structure according to claim 4, wherein, The airbag (32) is made of a fireproof material.

10. The wire fixing structure according to claim 1, characterized in that, A connecting structure (13) is connected between the lower housing (11) and the upper housing (12) for fixing the upper housing (12) on the lower housing (11).

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