Electric spark prevention patch board

Abstract

The invention relates to the field of patch boards, in particular to an electric spark prevention patch board which comprises a shell, a conducting strip and a sealing assembly, a fixing cavity is formed in the surface of the shell, the shell is provided with a mounting cavity, a plurality of conducting holes are reserved in the surface of the conducting strip at intervals, at least two jacks are formed in the bottom wall of the fixing cavity at intervals, and the jacks communicate with the mounting cavity. The sealing assembly comprises a sealing base and a sealing baffle, the sealing base is connected to the inner wall of the mounting cavity, a sliding cavity is formed in the surface of the sealing base, and at least two sealing holes are formed in the bottom wall of the sliding cavity at intervals, penetrate through the surface of the sealing base and face the conductive holes in a one-to-one correspondence mode. According to the invention, the arrangement of the sealing seat and the sealing baffle plate realizes the sealed storage of the conductive sheet, guarantees that the dust is not liable to hinder the direct contact between the conductive plug pin on the plug and the inner wall of the conductive hole, enables the contact resistance not to be liable to increase, avoids the generation of electric sparks caused by the rapid temperature rise in the use process of the patch board, and improves the safety of the patch board. Therefore, the use safety of the patch board is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of the power strip, in particular to a power strip capable of preventing electric spark. BACKGROUND

[0002] The power strip is a movable multi-hole socket with power line and plug, which realizes "one socket for multiple uses" through the combination of multiple sockets, saves space and line, and is a commonly used power distribution equipment in daily life.

[0003] In the prior art, the conductive pin of the plug is connected with the conductive sheet through the abutment of the socket hole and the conductive sheet. However, when the power strip is idle, dust is easy to accumulate on the surface of the conductive sheet through the socket hole. The dust hinders the direct contact between the plug and the conductive sheet, significantly increases the contact resistance, concentrates heat at the contact point, rapidly increases the temperature, ionizes the air around the contact point, and thus generates electric spark, thereby reducing the use safety of the power strip. SUMMARY

[0004] In order to improve the problem of use safety of the power strip, the present application provides a power strip capable of preventing electric spark.

[0005] The power strip capable of preventing electric spark provided by the present application adopts the following technical scheme: The power strip capable of preventing electric spark comprises a shell, a conductive sheet and a sealing assembly. The shell is provided with a fixed cavity for embedding the end of the plug. The shell is provided with an installation cavity for installing the conductive sheet. The surface of the conductive sheet is provided with a plurality of conductive holes for embedding the conductive pin of the plug. The bottom wall of the fixed cavity is provided with at least two socket holes for embedding the conductive pin of the plug. The socket hole is communicated with the installation cavity. The socket hole corresponds to the conductive hole. The sealing assembly comprises a sealing seat and a sealing baffle. The sealing seat is connected to the inner wall of the installation cavity. The sealing seat is located on the side of the conductive sheet close to the socket hole. The surface of the sealing seat facing the socket hole is provided with a sliding cavity for sliding the sealing baffle. The sliding cavity is communicated with the socket hole. The bottom wall of the sliding cavity is provided with at least two sealing holes. The sealing hole penetrates the surface of the sealing seat and corresponds to the conductive hole. When the sealing baffle slides towards the direction close to the conductive hole, the surface of the sealing baffle faces the socket hole. When the sealing baffle slides away from the direction of the conductive hole, the sliding cavity is communicated with the sealing hole and the socket hole.

[0006] By adopting the technical scheme, when the patch board is used, the closed baffle is driven to slide along the inner wall of the sliding cavity in a direction away from the conductive hole, the sliding cavity is communicated with the sealing hole and the jack, the end of the plug is embedded into the fixed cavity, the end of the conductive pin on the plug is sequentially arranged through the jack, the sliding cavity and the sealing hole and is embedded into the conductive hole, and the plug is fixed on the patch board; when the patch board is idle, the closed baffle is driven to slide along the inner wall of the sliding cavity in a direction close to the conductive hole, the baffle surface of the closed baffle faces the jack, dust in the outside environment is not easy to enter the sliding cavity through the jack and is accumulated on the surface of the conductive sheet from the sealing hole, the closed preservation of the conductive sheet is realized, dust is not easy to hinder the direct contact between the conductive pin on the plug and the inner wall of the conductive hole, the contact resistance is not easy to increase, the situation that the patch board is rapidly heated to generate electric sparks in the use process is avoided, and therefore the use safety of the patch board is improved.

[0007] Optionally, the closed assembly further comprises an elastic member one, one end of the elastic force direction of the elastic member one is connected to the inner wall of the sliding cavity, the other end of the elastic force direction of the elastic member one is connected to the baffle surface of the closed baffle, the elastic member one has an elastic force to drive the closed baffle to slide in a direction close to the conductive hole, and the baffle surface of the closed baffle faces the jack, the baffle surface of the closed baffle is provided with a closed cavity for the conductive pin on the plug to pass through, the inner wall of the closed cavity facing one of the jacks is provided with a guide surface one, the inclination height of the guide surface one increases with the distance to the conductive sheet decreasing, the end surface of the closed baffle facing the other jack is provided with a guide surface two, the inclination height of the guide surface two increases with the distance to the conductive sheet decreasing, when the two conductive pins on the plug pass through the jacks one by one and face the baffle surface of the closed baffle, the guide surface one abuts against one of the conductive pins of the plug and guides the closed baffle to slide in a direction away from the conductive hole, the sealing hole is communicated with the closed cavity and the conductive hole, the guide surface two abuts against the other conductive pin of the plug and guides the closed baffle to slide away from the conductive hole, and the sliding cavity is communicated with the sealing hole and the jack.

[0008] By adopting the above technical scheme, the elastic member drives the closing baffle to slide along the inner wall of the sliding cavity towards the conductive hole, and the closing baffle plate surface faces the jack, so that the closing baffle is not easy to deviate in the inner wall of the sliding cavity, thereby improving the stability of the closing baffle in closing the conductive sheet; when the two conductive pins on the plug are respectively inserted into the two jacks and face the closing baffle plate surface, one of the conductive pins on the plug faces the guide surface one, and the other conductive pin on the plug faces the guide surface two, the guide surface one abuts against one of the conductive pins on the plug and guides the closing baffle to slide away from the conductive hole, the sealing hole communicates the closing cavity and the conductive hole, and one of the conductive pins on the plug is sequentially inserted into the closing cavity and the sealing hole and embedded into the conductive hole; at the same time, the guide surface two abuts against the other conductive pin on the plug and guides the closing baffle to slide away from the conductive hole, the sliding cavity communicates the sealing hole and the jack, and the other conductive pin on the plug is inserted into the sealing hole and embedded into the conductive hole, thereby realizing automatic sliding of the closing baffle without the need for additional control of the closing baffle by the staff, and improving the use convenience of the patch board.

[0009] Optionally, the closing assembly further comprises a guide rod, one end of the guide rod is connected to the bottom wall of the sliding cavity, and the other end of the guide rod is embedded into the closing cavity, the guide rod is located between the two jacks, and when the closing baffle slides along the inner wall of the sliding cavity, the guide rod slides along the inner wall of the closing cavity.

[0010] By adopting the above technical scheme, when the closing baffle is driven to slide along the inner wall of the sliding cavity, the guide rod is driven to slide along the inner wall of the closing cavity, so that the closing baffle is not easy to deviate when sliding along the inner wall of the sliding cavity, thereby improving the stability of the closing baffle when sliding along the inner wall of the sliding cavity.

[0011] Optionally, the closing assembly further comprises a force applying block, one end of the force applying block is connected to the surface of the guide rod facing the guide surface one, and the other end of the force applying block can abut against the surface of one of the conductive pins on the plug and guide the end surface of the conductive pin to abut against the guide surface one to form positioning.

[0012] By adopting the above technical scheme, when the end of one of the conductive pins on the plug is inserted into the jack and embedded into the sliding cavity, the force applying block is located on the surface of the guide rod facing the guide surface one, the end surface of the force applying block abuts against the surface of one of the conductive pins on the plug and guides the end surface of the conductive pin to abut against the guide surface one to form positioning, so that the end surface of the conductive pin is not easy to deviate from the guide surface one, thereby ensuring that the conductive pin stably abuts against the guide surface one and drives the closing baffle to slide along the inner wall of the sliding cavity away from the conductive hole.

[0013] Optionally, the shell is connected with a pressing assembly, the pressing assembly comprises a plurality of pressing rollers, a plurality of rotating cavities for the pressing rollers to rotate are spaced apart on the inner wall of the fixed cavity, and the wheel surface of the pressing roller protruding from the inner wall of the fixed cavity is in rolling contact with the surface of the plug.

[0014] By adopting the above technical scheme, when the plug is embedded in the fixing cavity, the wheel surface of the compression roller protruding from the inner wall of the fixing cavity is in rolling contact with the surface of the plug, rolling friction is used instead of sliding friction, wear between the plug and the inner wall of the fixing cavity is reduced, the plug is less likely to be loose in the inner wall of the fixing cavity, and the use safety of the patch panel is further improved.

[0015] Optionally, the compression assembly further comprises a compression ring capsule, an outer wall of the compression ring capsule is connected to the inner wall of the fixing cavity, and an inner wall of the compression ring capsule is capable of tightly abutting the outer circumferential surface of the plug to form a seal.

[0016] By adopting the above technical scheme, when the end of the plug is embedded in the fixing cavity, the outer circumferential surface of the plug and the inner wall of the fixing cavity tightly abut the two sides of the compression ring capsule to form a seal, so that dust from the outside is less likely to enter the fixing cavity and adhere to the surface of the conductive plug pin of the plug, and the plug is less likely to be loose in the fixing cavity, thereby improving the connection stability between the conductive plug pin on the plug and the inner wall of the conductive hole.

[0017] Optionally, the compression assembly further comprises a compression ring and a second elastic member, the fixing cavity is provided with a compression cavity for sliding of the compression ring towards the outer side of the compression ring capsule, the compression ring is located on the side of the compression ring capsule away from the jack, one end of the second elastic member in the elastic direction is connected to the inner wall of the compression cavity, and the other end of the second elastic member in the elastic direction is connected to the surface of the compression ring, the second elastic member has an elastic force to drive the compression ring to slide towards the compression ring capsule, and the surface of the compression ring and the inner wall of the fixing cavity have a tendency to clamp the two sides of the compression ring capsule.

[0018] By adopting the above technical scheme, before the plug is installed, the compression ring is driven to slide along the inner wall of the compression cavity away from the compression ring capsule, the pressure of the compression ring on the compression ring capsule disappears, the compression ring capsule rebounds under its own elastic force, the end of the plug is embedded in the fixing cavity, the compression ring is loosened, the second elastic member drives the compression ring to slide towards the compression ring capsule, the surface of the compression ring and the inner wall of the fixing cavity clamp the two sides of the compression ring capsule, the compression ring capsule is deformed along the axial direction under pressure, and the inner wall of the fixing cavity and the outer circumferential surface of the plug clamp the two sides of the compression ring capsule to form a seal, thereby reducing wear between the plug and the compression ring capsule and prolonging the service life of the patch panel.

[0019] Optionally, the shell is connected with a cooling assembly, the cooling assembly comprises a plurality of cooling pistons and a plurality of elastic members, the inner wall of the fixed cavity is provided with a plurality of cooling cavities for the sliding of the cooling pistons, the bottom wall of the fixed cavity is provided with a cooling flow channel, the cooling flow channel is communicated with the plurality of cooling cavities, the elastic member is in one-to-one correspondence with the cooling piston, one end of the elastic member in the elastic force direction is connected to the inner wall of the cooling cavity, the other end of the elastic member in the elastic force direction is connected to the surface of the cooling piston, the elastic member has an elastic force to drive the cooling piston to slide towards the fixed cavity, and the end of the cooling piston protrudes from the inner wall of the fixed cavity, the end surface of the cooling piston protruding from the fixed cavity is provided with a buffer surface, the inclination height of the buffer surface increases with the distance to the elastic member, when the plug end is embedded in the fixed cavity, the buffer surface abuts against the surface of the plug and guides the cooling piston to slide towards the cooling cavity.

[0020] By adopting the above technical scheme, when the plug end is embedded in the fixed cavity, the buffer surface abuts against the surface of the plug and guides the cooling piston to slide towards the cooling cavity, the air pressure in the cooling cavity increases, the air in the cooling cavity is discharged through the cooling flow channel, the air flow in the fixed cavity is pushed to make the air fully contact with the inner wall of the fixed cavity and exchange heat, thereby improving the cooling effect of the shell; when the plug end is separated from the fixed cavity, the pressure of the plug on the cooling piston disappears, the elastic force of the elastic member drives the cooling piston to slide towards the fixed cavity, the air pressure in the cooling cavity decreases, the external air enters the cooling cavity through the cooling flow channel, the air flow in the cooling cavity is improved, the air fully contacts with the inner wall of the cooling cavity and exchanges heat, thereby further improving the cooling effect of the shell.

[0021] Optionally, the cooling assembly further comprises a one-way valve and a plurality of one-way valves, the one-way valve is connected to the inner wall of the cooling flow channel, the one-way valve is used for the air in the cooling flow channel to enter the fixed cavity, the inner wall of the rotating cavity is provided with a plurality of air outlet cavities, the air outlet cavities are communicated with the cooling flow channel, the one-way valve is in one-to-one correspondence with the air outlet cavity and is connected to the inner wall of the air outlet cavity, and the one-way valve is used for the air in the rotating cavity to enter the air outlet cavity.

[0022] By adopting the above technical scheme, when the surface of the plug abuts against the buffer surface and drives the cooling piston to slide towards the cooling cavity, the air in the cooling cavity enters the fixed cavity from the one-way valve through the cooling flow channel, and the air flow in the fixed cavity is pushed; when the plug end is separated from the fixed cavity, the elastic force of the elastic member drives the cooling piston to slide towards the fixed cavity, and the external air enters the cooling cavity through the one-way valve, the air outlet cavity and the cooling flow channel in sequence, and the air flow in the rotating cavity is pushed, so that the air in the rotating cavity fully contacts with the surface of the compression roller and exchanges heat, thereby achieving the cooling of the surface of the compression roller.

[0023] Optionally, the shell is connected with a pre-warning assembly, the pre-warning assembly comprises a pre-warning connecting rod and a pre-warning piston, the fixed cavity is provided with a pre-warning cavity for the pre-warning piston to slide towards the inner wall of the compression ring capsule, the pre-warning cavity is communicated with the inner cavity of the compression ring capsule, the pre-warning cavity is communicated with the cooling flow channel, one end of the pre-warning connecting rod is rotationally connected to the surface of the pre-warning piston, the other end of the pre-warning connecting rod is rotationally connected to the surface of one of the cooling pistons close to the sealing seat, when the cooling piston slides towards the cooling cavity, the pre-warning connecting rod receives the power of the cooling piston and drives the pre-warning piston to slide towards the compression ring capsule, the surface of the compression ring capsule is pressurized and expanded to abut against the outer peripheral surface of the plug to form a seal, and the end surface of the compression ring is flush with the surface of the shell.

[0024] By adopting the above technical scheme, when the end of the plug is completely embedded in the fixed cavity, the buffer surface abuts against the surface of the plug and drives the cooling piston to slide towards the cooling cavity, the pre-warning connecting rod receives the power of the cooling piston and drives the pre-warning piston to slide towards the compression ring capsule, the air in the pre-warning cavity enters the inner cavity of the compression ring capsule, the surface of the compression ring capsule is pressurized and expanded, the inner peripheral wall of the compression ring capsule abuts against the outer peripheral surface of the plug to form a seal, and the compression ring drives the compression ring to slide away from the compression cavity against the elastic element two elastic force, the end surface of the compression ring is flush with the surface of the shell, and the staff can directly judge the installation condition of the plug according to the flush condition of the end surface of the compression ring with the surface of the shell, thereby further improving the use safety of the plugboard.

[0025] In summary, the present application has at least one of the following beneficial technical effects: 1. The sealing seat and the sealing baffle are arranged to realize closed storage of the conductive sheet, prevent dust from hindering direct contact between the conductive pin on the plug and the inner wall of the conductive hole, prevent the contact resistance from being easily increased, avoid the occurrence of the situation that the plugboard is rapidly heated to generate electric sparks during use, and thereby improve the use safety of the plugboard; 2. The elastic element one is arranged to realize automatic sliding of the sealing baffle, without the need for the staff to additionally control the sliding of the sealing baffle, thereby improving the use convenience of the plugboard; 3. The guide rod is arranged to prevent the sealing baffle from deviating when sliding in the inner wall of the sliding cavity, thereby improving the stability of the sealing baffle when sliding in the inner wall of the sliding cavity. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application.

[0027] Figure 2 is a schematic diagram of the overall structure of the conductive sheet and the sealing assembly in the embodiment of the present application.

[0028] Figure 3is a partial sectional view in the embodiments of the present application, mainly showing the cooling assembly.

[0029] Figure 4 is a partial sectional view in the embodiments of the present application, mainly showing the pressing assembly.

[0030] Legend: 1, housing; 11, fixed cavity; 12, mounting cavity; 13, insertion hole; 14, pressing cavity; 15, rotating cavity; 16, cooling cavity; 17, cooling flow channel; 18, air outlet cavity; 19, early warning cavity; 2, conductive sheet; 21, conductive hole; 3, closure assembly; 31, closure seat; 311, sliding cavity; 312, sealing hole; 32, closure baffle; 321, closure cavity; 322, guide surface one; 323, guide surface two; 33, elastic member one; 34, guide rod; 35, force applying block; 4, pressing assembly; 41, pressing ring capsule; 42, pressing ring; 43, elastic member two; 44, pressing roller; 5, cooling assembly; 51, one-way valve one; 52, one-way valve two; 53, cooling piston; 531, buffer surface; 54, elastic member three; 6, early warning assembly; 61, early warning piston; 62, early warning connecting rod. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings Figures 1-4 The present application will be further described in detail.

[0032] The embodiments of the present application disclose an electric spark prevention patch board. Referring to Figure 1 and Figure 2 An electric spark prevention patch board comprises a housing 1, a conductive sheet 2 and a closure assembly 3, a plurality of fixed cavities 11 for embedding the end of a plug are arranged on the surface of the housing 1 at intervals, and the arrangement direction of the fixed cavities 11 is parallel to the length direction of the housing 1.

[0033] Referring to Figure 2 and Figure 3 A mounting cavity 12 for mounting the conductive sheet 2 is left in the housing 1, the number of the conductive sheets 2 can be two or three, and the number of the conductive sheets 2 in the embodiments of the present application is two, the two conductive sheets 2 are fixed on the inner wall of the mounting cavity 12 at intervals, the two conductive sheets 2 are located at the two ends in the width direction of the housing 1, and a plurality of conductive holes 21 for embedding the conductive pins of the plug are arranged on the surface of the conductive sheet 2 at intervals, and the arrangement direction of the conductive holes 21 is parallel to the length direction of the housing 1.

[0034] Referring to Figure 1 and Figure 2The bottom wall of the fixed cavity 11 is spaced apart to provide two insertion holes 13 for the conductive pins of the plug, the insertion holes 13 penetrate the bottom wall of the fixed cavity 11 in the depth direction and are communicated with the mounting cavity 12, the insertion holes 13 correspond to the conductive holes 21 on the conductive sheet 2 one by one and face the conductive holes 21; the number of the closed assemblies 3 in the embodiment is multiple, the multiple closed assemblies 3 are connected to the inner wall of the mounting cavity 12 in a spaced apart manner, the arrangement direction of the closed assemblies 3 is parallel to the length direction of the shell 1, the closed assemblies 3 correspond to the fixed cavities 11 one by one, the closed assemblies 3 can control the on-off of the insertion holes 13 and the conductive holes 21, ensure that the dust cannot easily hinder the direct contact between the conductive pins on the plug and the inner wall of the conductive holes 21, prevent the contact resistance from being easily increased, avoid the occurrence of the situation that the power strip generates electric sparks due to rapid heating in the use process, and thus improve the use safety of the power strip.

[0035] With reference to Figure 1 and Figure 2 The closed assembly 3 comprises a closed seat 31, a closed baffle 32, an elastic member 33, a guide rod 34 and a force applying block 35, the closed seat 31 is fixed to the inner wall of the mounting cavity 12 through bolts, the closed seat 31 is located on the side of the conductive sheet 2 close to the insertion hole 13, the surface of the closed seat 31 facing the insertion hole 13 is provided with a sliding cavity 311 for the sliding of the closed baffle 32, the two insertion holes 13 are communicated with the sliding cavity 311, the bottom wall of the sliding cavity 311 is spaced apart to provide two sealing holes 312, the axis of the sealing hole 312 is parallel to the height direction of the shell 1, the sealing hole 312 penetrates the outer wall of the closed seat 31 along the axis thereof, and the sealing hole 312 corresponds to the conductive hole 21 on the conductive sheet 2 one by one and faces the conductive hole 21.

[0036] With reference to Figure 1 and Figure 2 When the closed baffle 32 slides along the inner wall of the sliding cavity 311 towards the direction close to the conductive hole 21, the plate surface of the closed baffle 32 faces the insertion hole 13, when the closed baffle 32 slides along the inner wall of the sliding cavity 311 towards the direction away from the conductive hole 21, the sliding cavity 311 communicates the sealing hole 312 and the insertion hole 13, so that the dust cannot easily hinder the direct contact between the conductive pins on the plug and the inner wall of the conductive hole 21, the contact resistance is not easily increased, the situation that the power strip generates electric sparks due to rapid heating in the use process is avoided, and thus the use safety of the power strip is improved.

[0037] With reference to Figure 1 and Figure 2The elastic member 33 can be a compression spring or a tension spring. In the embodiment, the elastic member 33 is a compression spring and has a certain deformation capacity. One end of the elastic member 33 in the elastic force direction is connected to the inner wall of the sliding cavity 311, and the other end of the elastic member 33 in the elastic force direction is connected to the plate surface of the closing baffle 32. The elastic member 33 has an elastic force to drive the closing baffle 32 to slide towards the direction close to the conductive hole 21, and the plate surface of the closing baffle 32 tends to face the jack 13, so that the closing baffle 32 is not easy to deviate from the inner wall of the sliding cavity 311, thereby improving the stability of the closing baffle 32 on the inner wall of the sliding cavity 311.

[0038] Referring to Figure 1 and Figure 2 , the plate surface of the closing baffle 32 is provided with a closing cavity 321 for the conductive pin on the plug to pass through. The closing cavity 321 penetrates through both sides of the closing baffle 32. The closing cavity 321 is provided with a guide surface one 322 on the inner wall facing one of the jacks 13. The inclination height of the guide surface one 322 increases with the distance to the conductive sheet 2 decreasing. The end surface of the closing baffle 32 facing the other jack 13 is provided with a guide surface two 323. The inclination height of the guide surface two 323 increases with the distance to the conductive sheet 2 decreasing.

[0039] Referring to Figure 1 and Figure 2 , one end of the guide rod 34 is fixed to the bottom wall of the sliding cavity 311, and the other end of the guide rod 34 is embedded in the closing cavity 321. The guide rod 34 is located between the two jacks 13. When the closing baffle 32 slides on the inner wall of the sliding cavity 311, the guide rod 34 slides on the inner wall of the closing cavity 321, so that the closing baffle 32 is not easy to deviate when sliding on the inner wall of the sliding cavity 311, thereby further improving the stability of the closing baffle 32 when sliding on the inner wall of the sliding cavity 311.

[0040] Referring to Figure 1 and Figure 2 , one end of the force applying block 35 is fixed to the surface of the guide rod 34 facing the guide surface one 322, and the other end of the force applying block 35 can abut against the surface of one of the conductive pins of the plug and guide the end surface of the conductive pin to abut against the guide surface one 322 to form positioning. When the end portions of the two conductive pins on the plug pass through the two jacks 13 one by one and are embedded in the sliding cavity 311, the end surface of the force applying block 35 abuts against the surface of one of the conductive pins of the plug and guides the end surface of the conductive pin to abut against the guide surface one 322 to form positioning. The guide surface one 322 abuts against the end surface of the conductive pin and guides the closing baffle 32 to slide away from the conductive hole 21. The sealing hole 312 connects the closing cavity 321 and the conductive hole 21. The end portion of the conductive pin passes through the closing cavity 321 and the sealing hole 312 and is embedded in the conductive hole 21.

[0041] Referring to Figure 1 and Figure 2Meanwhile, the guiding surface 323 abuts against another conductive pin of the plug and guides the closed baffle 32 to slide away from the conductive hole 21, the sliding cavity 311 is communicated with the sealing hole 312 and the plug hole 13, the end of the conductive pin penetrates through the sealing hole 312 and is embedded in the conductive hole 21, the automatic sliding of the closed baffle 32 is realized, and the staff does not need to separately control the sliding of the closed baffle 32, thereby improving the use convenience of the plug board.

[0042] With reference to Figure 3 and Figure 4 , the shell 1 is provided with the pressing assembly 4, the pressing assembly 4 can improve the abutting force of the plug and the inner wall of the fixed cavity 11; the number of the pressing assembly 4 can be one, two or more, the number of the pressing assembly 4 in the embodiment of the application is multiple, the pressing assembly 4 corresponds to the fixed cavity 11 one by one and is connected to the inner wall of the fixed cavity 11; the pressing assembly 4 comprises a pressing ring capsule 41, a pressing ring 42, an elastic member two 43 and multiple pressing rollers 44, the material of the pressing ring capsule 41 can be rubber or silica gel, the material of the pressing ring capsule 41 in the embodiment of the application is rubber, has a certain deformation ability, the outer circle wall of the pressing ring capsule 41 is fixed to the inner wall of the fixed cavity 11, and the inner circle wall of the pressing ring capsule 41 can abut against the outer peripheral surface of the plug to form a seal, so that impurities are not easy to enter the fixed cavity 11 and adhere to the surface of the conductive pin of the plug, thereby improving the use safety of the plug board.

[0043] With reference to Figure 3 and Figure 4 , the inner wall of the fixed cavity 11 facing the outer circle of the pressing ring capsule 41 is provided with a pressing cavity 14 for sliding of the pressing ring 42, the sliding direction of the pressing ring 42 and the height direction of the shell 1 are parallel to each other, the elastic member two 43 can be a compression spring or a tension spring, the elastic member two 43 in the embodiment of the application is a compression spring, has a certain deformation ability, one end of the elastic force direction of the elastic member two 43 is connected to the inner wall of the pressing cavity 14, the other end of the elastic force direction of the elastic member two 43 is connected to the surface of the pressing ring 42, the elastic member two 43 has an elastic force to drive the pressing ring 42 to slide along the inner wall of the pressing cavity 14 towards the pressing ring capsule 41, and the surface of the pressing ring 42 and the inner wall of the fixed cavity 11 have a tendency to clamp the two sides of the pressing ring capsule 41.

[0044] With reference to Figure 3 and Figure 4 , the inner wall of the fixed cavity 11 is provided with multiple rotating cavities 15 for rotation of the pressing rollers 44, the arrangement direction of the rotating cavities 15 and the height direction of the shell 1 are parallel to each other, the protruding wheel surface of the pressing roller 44 from the inner wall of the fixed cavity 11 rolls in contact with the surface of the plug, the rolling friction replaces the sliding friction, reduces the wear of the plug and the inner wall of the fixed cavity 11, thereby improving the abutting force between the surface of the plug and the inner wall of the fixed cavity 11, making the plug not easy to loosen in the fixed cavity 11, thereby improving the limiting stability of the plug in the fixed cavity 11.

[0045] With reference toFigure 3 And Figure 4 The shell 1 is provided with cooling assemblies 5 capable of pushing the air flow in the fixed cavities 11 to provide cooling efficiency for the shell 1; the number of the cooling assemblies 5 can be one, two or more, and in the embodiment of the application, the number of the cooling assemblies 5 is multiple, the cooling assemblies 5 are in one-to-one correspondence with the fixed cavities 11 and are connected to the inner walls of the fixed cavities 11; the cooling assembly 5 comprises a one-way valve one 51, multiple one-way valves two 52, multiple cooling pistons 53 and multiple elastic members three 54, the material of the cooling piston 53 can be rubber or silica gel, and in the embodiment of the application, the material of the cooling piston 53 is rubber, the inner walls of the fixed cavities 11 are provided with multiple cooling cavities 16 for the sliding of the cooling pistons 53, the arrangement direction of the cooling cavities 16 is parallel to the height direction of the shell 1, the elastic member three 54 can be a compression spring or a tension spring, and in the factual demonstration of the application, the elastic member three 54 is a compression spring having a certain deformation capacity, one end of the elastic member three 54 in the elastic force direction is connected to the bottom wall of the cooling cavity 16, the other end of the elastic member three 54 in the elastic force direction is connected to the surface of the cooling piston 53, the elastic member three 54 has elastic force to drive the cooling piston 53 to slide towards the fixed cavity 11, and the end of the cooling piston 53 tends to protrude from the inner wall of the fixed cavity 11.

[0046] Referring to Figure 3 And Figure 4 The end surface of the cooling piston 53 protruding from the fixed cavity 11 is provided with a buffer surface 531, the inclination height of the buffer surface 531 increases with the distance to the elastic member three 54, the bottom wall of the fixed cavity 11 is provided with a cooling flow channel 17, the cooling flow channel 17 communicates with the multiple cooling cavities 16, the one-way valve one 51 is connected to the inner wall of the cooling flow channel 17, the one-way valve one 51 allows the air in the cooling flow channel 17 to enter the fixed cavity 11, the inner wall of the rotating cavity 15 is provided with an air outlet cavity 18, the air outlet cavity 18 communicates with the cooling flow channel 17, the one-way valve two 52 is in one-to-one correspondence with the air outlet cavity 18 and is connected to the inner wall of the air outlet cavity 18, and the one-way valve two 52 allows the air in the rotating cavity 15 to enter the air outlet cavity 18.

[0047] Referring to Figure 3 And Figure 4When the plug end is embedded in the fixed cavity 11, the buffer surface 531 abuts against the plug surface and drives the cooling piston 53 to slide towards the cooling cavity 16, pushing the air in the cooling cavity 16 to flow through the cooling flow channel 17 from the one-way valve 51 into the fixed cavity 11, pushing the air in the fixed cavity 11 to flow, so that the air fully contacts the inner wall of the fixed cavity 11 and exchanges heat, thereby achieving the cooling of the inner wall of the fixed cavity 11; when the plug end is separated from the fixed cavity 11, the pressure of the plug on the cooling piston 53 disappears, and the elastic member three 54 drives the cooling piston 53 to slide towards the fixed cavity 11, the end of the cooling piston 53 protrudes from the inner wall of the fixed cavity 11, and the air in the rotating cavity 15 enters the air outlet cavity 18 through the one-way valve two 52 and enters the cooling cavity 16 from the cooling flow channel 17, pushing the air in the rotating cavity 15 and the cooling flow channel 17 to flow, so that the surface of the compression roller 44 fully contacts the air and exchanges heat, thereby improving the cooling efficiency of the surface of the compression roller 44.

[0048] With reference to Figure 3 and Figure 4 , the shell 1 is provided with a warning assembly 6, which can inflate the inner cavity of the compression ring bag 41 and tightly abut against the outer peripheral surface of the plug to form a seal; the number of the warning assembly 6 can be one, two or more, and in the embodiment of the application, the number of the warning assembly 6 is multiple, the warning assembly 6 corresponds to the fixed cavity 11 one by one and is connected to the inner wall of the fixed cavity 11, the warning assembly 6 comprises a warning piston 61 and a warning connecting rod 62, the material of the warning piston 61 can be rubber or silicone, and in the embodiment of the application, the material of the warning piston 61 is rubber, which has a certain deformation ability, the inner wall of the fixed cavity 11 facing the compression ring bag 41 is provided with a warning cavity 19 for the sliding of the warning piston 61, the sliding direction of the warning piston 61 and the height direction of the shell 1 are parallel to each other, the warning cavity 19 communicates the inner cavity of the compression ring bag 41 and the cooling flow, one end of the warning connecting rod 62 is rotatably connected to the surface of the warning piston 61, the other end of the warning connecting rod 62 is rotatably connected to the surface of the cooling piston 53 near the closed seat 31, and the warning connecting rod 62 is located on the side of the warning piston 61 away from the compression ring bag 41; when the cooling piston 53 near the closed seat 31 is pressed by the plug to slide towards the cooling flow channel 17, the warning connecting rod 62 rotates, driving the warning piston 61 to slide along the inner wall of the warning cavity 19 towards the compression ring bag 41, the air in the warning cavity 19 enters the inner cavity of the compression ring bag 41, the compression ring bag 41 is pressurized and expanded to tightly abut against the outer peripheral surface of the plug to form a seal, and at the same time, the compression ring bag 41 drives the compression ring 42 to slide towards the shell 1 against the elastic force of the elastic member two 43, the end surface of the compression ring 42 is flush with the surface of the shell 1, so that the staff can directly judge the installation of the plug according to the flush condition of the end surface of the compression ring 42 and the surface of the shell 1, thereby further improving the use safety of the plugboard.

[0049] The implementation principle of the plug board preventing electric spark according to the embodiment of the application is as follows: when the plug board is used, the two conductive plug pins on the plug are respectively inserted into the two plug holes 13 and embedded into the sliding cavity 311, the end surface of the force applying block 35 abuts against the surface of one of the conductive plug pins and guides the end surface of the conductive plug pin to abut against the guide surface one 322 to form positioning, the guide surface one 322 abuts against the end surface of the conductive plug pin and guides the closed baffle 32 to slide away from the conductive hole 21, the sealing hole 312 connects the closed cavity 321 and the conductive hole 21, the end of the conductive plug pin is inserted into the conductive hole 21 through the closed cavity 321 and the sealing hole 312; at the same time, the guide surface two 323 abuts against the other conductive plug pin of the plug and guides the closed baffle 32 to slide away from the conductive hole 21, the sliding cavity 311 connects the sealing hole 312 and the plug hole 13, the end of the conductive plug pin is inserted into the conductive hole 21 through the sealing hole 312, and automatic sliding of the closed baffle 32 is realized, so that it is not necessary for the staff to separately control the sliding of the closed baffle 32, thereby improving the convenience of use of the plug board; when the plug board is idle, the end of the plug is separated from the fixed cavity 11, the elastic member one 33 drives the closed baffle 32 to slide towards the conductive hole 21 by elastic force, and the surface of the closed baffle 32 faces the plug hole 13, so that dust is not easy to hinder the direct contact between the conductive plug pin on the plug and the inner wall of the conductive hole 21, the contact resistance is not easy to increase, the situation that the plug board is rapidly heated to generate electric spark during use is avoided, and the safety of use of the plug board is improved.

[0050] The above are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. An electrical plugboard which is resistant to electrical sparking, characterised in that: Including casing (1), conductive sheet (2) and closed assembly (3), the fixed cavity (11) is reserved for the plug end embedding on the surface of the casing (1), the casing (1) has the installation cavity (12) for the conductive sheet (2) installation, the conductive sheet (2) surface interval is reserved with multiple conductive hole (21) for the conductive pin embedding of plug, the bottom wall of the fixed cavity (11) interval is reserved with at least two insertion hole (13) for the conductive pin embedding of plug, the insertion hole (13) is communicated installation cavity (12), the insertion hole (13) and conductive hole (21) one to one, the closed assembly (3) includes closed seat (31) and closed baffle (32), the closed seat (31) is connected in the inner wall of installation cavity (12), the closed seat (31) is located in the side of conductive sheet (2) close to insertion hole (13), the surface of the closed seat (31) towards insertion hole (13) is reserved with the sliding cavity (311) for the closed baffle (32) sliding, the insertion hole (13) is communicated sliding cavity (311), the bottom wall of the sliding cavity (311) interval is reserved with at least two sealing hole (312), the sealing hole (312) penetrates the surface of closed seat (31) and one to one towards conductive hole (21), when the closed baffle (32) is towards the direction close to conductive hole (21) sliding, the closed baffle (32) board surface towards insertion hole (13), when the closed baffle (32) is towards the direction away from conductive hole (21) sliding, the sliding cavity (311) is communicated sealing hole (312) and insertion hole (13).

2. An anti-sparking patch panel according to claim 1, wherein: The closing assembly (3) further comprises a first elastic member (33), one end of the first elastic member (33) is connected to the inner wall of the sliding cavity (311), the other end of the first elastic member (33) is connected to the plate surface of the closing baffle (32), the first elastic member (33) has a elastic force to drive the closing baffle (32) to slide towards the direction close to the conductive hole (21), and the plate surface of the closing baffle (32) has a tendency to face the jack (13), the plate surface of the closing baffle (32) is provided with a closing cavity (321) for the conductive pin of the plug to pass through, the inner wall of the closing cavity (321) facing one of the jacks (13) is provided with a first guide surface (322), the inclination height of the first guide surface (322) increases with the distance to the conductive sheet (2) decreasing, the end surface of the closing baffle (32) facing the other jack (13) is provided with a second guide surface (323), the inclination height of the second guide surface (323) increases with the distance to the conductive sheet (2) decreasing, when the two conductive pins of the plug pass through the jacks (13) one by one and face the plate surface of the closing baffle (32), the first guide surface (322) abuts one of the conductive pins of the plug and guides the closing baffle (32) to slide away from the conductive hole (21), the sealing hole (312) communicates the closing cavity (321) and the conductive hole (21), the second guide surface (323) abuts the other conductive pin of the plug and guides the closing baffle (32) to slide away from the conductive hole (21), the sliding cavity (311) communicates the sealing hole (312) and the jack (13).

3. An anti-sparking patch panel according to claim 2, wherein: The closing assembly (3) further comprises a guide rod (34), one end of the guide rod (34) is connected to the bottom wall of the sliding cavity (311), the other end of the guide rod (34) is embedded in the closing cavity (321), the guide rod (34) is located between the two jacks (13), when the closing baffle (32) slides on the inner wall of the sliding cavity (311), the guide rod (34) slides on the inner wall of the closing cavity (321).

4. An anti-sparking patch panel according to claim 3, wherein: The closing assembly (3) further comprises a force applying block (35), one end of the force applying block (35) is connected to the surface of the guide rod (34) facing the first guide surface (322), the other end of the force applying block (35) can abut the surface of one of the conductive pins of the plug and guide the end surface of the conductive pin to abut the first guide surface (322) to form positioning.

5. An anti-sparking patch panel according to claim 1, wherein: The shell (1) is connected with a pressing assembly (4), the pressing assembly (4) comprises a plurality of pressing rollers (44), a plurality of rotating cavities (15) for the pressing rollers (44) to rotate are spaced apart on the inner wall of the fixed cavity (11), the wheel surface of the pressing roller (44) protruding from the inner wall of the fixed cavity (11) is in rolling contact with the surface of the plug.

6. An anti-sparking patch panel according to claim 5, wherein: The pressing assembly (4) further comprises a pressing ring capsule (41), the outer wall of the pressing ring capsule (41) is connected to the inner wall of the fixed cavity (11), the inner wall of the pressing ring capsule (41) can abut the outer peripheral surface of the plug to form sealing.

7. An anti-sparking patch panel according to claim 6, wherein: The compression assembly (4) further comprises a compression ring (42) and a second elastic member (43), the fixed cavity (11) is provided with a compression cavity (14) for the sliding of the compression ring (42) towards the inner wall of the outer ring of the compression ring capsule (41), the compression ring (42) is located on the side of the compression ring capsule (41) away from the insertion hole (13), one end of the elastic force direction of the second elastic member (43) is connected to the inner wall of the compression cavity (14), the other end of the elastic force direction of the second elastic member (43) is connected to the surface of the compression ring (42), the second elastic member (43) has an elastic force to drive the compression ring (42) to slide towards the compression ring capsule (41), and the surface of the compression ring (42) and the inner wall of the fixed cavity (11) have a tendency to clamp the compression ring capsule (41) on both sides.

8. An anti-sparking patch panel according to claim 7, wherein: The shell (1) is connected with a cooling assembly (5), the cooling assembly (5) comprises a plurality of cooling pistons (53) and a plurality of third elastic members (54), the inner wall of the fixed cavity (11) is spaced apart to provide a plurality of cooling cavities (16) for the sliding of the cooling pistons (53), the bottom wall of the fixed cavity (11) is provided with a cooling flow channel (17), the cooling flow channel (17) communicates with the plurality of cooling cavities (16), the third elastic member (54) corresponds to the cooling piston (53) one by one, one end of the elastic force direction of the third elastic member (54) is connected to the inner wall of the cooling cavity (16), the other end of the elastic force direction of the third elastic member (54) is connected to the surface of the cooling piston (53), the third elastic member (54) has an elastic force to drive the cooling piston (53) to slide towards the fixed cavity (11), and the end of the cooling piston (53) protrudes from the inner wall of the fixed cavity (11), the end surface of the cooling piston (53) protruding from the fixed cavity (11) is provided with a buffer surface (531), the inclination height of the buffer surface (531) increases with the distance to the third elastic member (54) decreasing, when the plug end is embedded in the fixed cavity (11), the buffer surface (531) abuts the plug surface and guides the cooling piston (53) to slide towards the cooling cavity (16).

9. An anti-sparking patch panel according to claim 8, wherein: The cooling assembly (5) further comprises a one-way valve (51) and a plurality of one-way valves (52), the one-way valve (51) is connected to the inner wall of the cooling flow channel (17), the one-way valve (51) allows air in the cooling flow channel (17) to enter the fixed cavity (11), the inner wall of the rotating cavity (15) is provided with an air outlet cavity (18), the air outlet cavity (18) communicates with the cooling flow channel (17), the one-way valve (52) corresponds to the air outlet cavity (18) one by one and is connected to the inner wall of the air outlet cavity (18), the one-way valve (52) allows air in the rotating cavity (15) to enter the air outlet cavity (18).

10. An anti-sparking patch panel according to claim 8, wherein: The shell (1) is connected with a pre-warning assembly (6), the pre-warning assembly (6) comprises a pre-warning connecting rod (62) and a pre-warning piston (61), the fixed cavity (11) is provided with a pre-warning cavity (19) for the pre-warning piston (61) to slide towards the inner wall of the compression ring capsule (41), the pre-warning cavity (19) is communicated with the inner cavity of the compression ring capsule (41), the pre-warning cavity (19) is communicated with the cooling flow channel (17), one end of the pre-warning connecting rod (62) is rotatably connected to the surface of the pre-warning piston (61), the other end of the pre-warning connecting rod (62) is rotatably connected to the surface of one of the cooling pistons (53) close to the sealing seat (31), when the cooling piston (53) slides towards the cooling cavity (16), the pre-warning connecting rod (62) receives the power of the cooling piston (53) and drives the pre-warning piston (61) to slide towards the compression ring capsule (41), the surface of the compression ring capsule (41) is pressurized and expanded and tightly abuts the outer peripheral surface of the plug to form a seal, and the abutting ring end surface is flush with the surface of the shell (1).

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