A building electrical socket and application method thereof

Abstract

The present invention discloses a building electrical socket and its application method, including an electrical socket body for forming an electrical connection after a plug is inserted; an upper limit block, an insertion hole, a metal spring, a built-in anti-pullout component, a clamping arm and a built-in auxiliary pullout component are arranged in the electrical socket body. The present invention has the following advantages and effects: the two clamping arms in the built-in anti-pullout component can respectively clamp the inner sides of two metal plugs, thereby realizing anti-pullout control of the plug; the built-in auxiliary pullout component can push up the plug after the two clamping arms are separated from the corresponding two metal plugs, so that the two metal plugs are separated from the corresponding metal springs, thereby facilitating the user to pull out the plug without contact, easily and safely; the present invention arranges the built-in anti-pullout structure and the built-in auxiliary pullout structure together in one electrical socket body, which not only has the anti-pullout and auxiliary pullout functions, but also realizes integration through linkage.

Description

Technical Field

[0001] The invention relates to the field of conductive connection of electrical sockets, and in particular to a building electrical socket and an application method thereof. Background Art

[0002] An electrical socket (also called a power outlet) is a device used to connect electrical equipment to an electrical power supply. It is usually mounted on a wall and transfers electricity from the electrical system to the appliance by inserting a plug. The socket can provide power to household appliances, lighting equipment, computers, televisions, etc. The design and shape of electrical sockets vary according to national or regional standards, and the voltage and pin layout also vary. Common types of electrical sockets include two-hole sockets, three-hole sockets (with ground wire), etc.

[0003] In order to improve the functionality of existing electrical sockets, the following optimizations have been made:

[0004] ①An anti-pullout structure is set in the electrical socket. The anti-pullout structure can prevent poor electrical contact, unstable operation of equipment, arcing or sparks at the contact point, and wear of the contact point caused by loose plugs.

[0005] ② An auxiliary pull-out structure is provided in the electrical socket so that when the plug needs to be pulled out, it can be pulled out safely and labor-savingly without contact, thus avoiding the risk of electric shock.

[0006] However, the existing electrical sockets are only provided with a single anti-pulling structure or a pull-out-assisting structure; it is impossible to uniformly and interconnect the two structures in the electrical socket. Summary of the invention

[0007] The object of the present invention is to provide a building electrical socket and an application method thereof to solve the problems raised in the background technology.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions:

[0009] In order to achieve the above-mentioned object, the present invention provides a building electrical socket, comprising an electrical socket body for forming an electrical connection after a plug is inserted; the plug has a plurality of metal inserts, and the electrical socket body is configured with:

[0010] An upper limit block having the same number as the metal inserts of the plug, wherein the upper limit block is provided with insertion holes for inserting the metal inserts of the plug, and the insertion holes also have the function of limiting the metal inserts;

[0011] The number of metal springs is the same as that of the metal inserts of the plug, and the metal springs are located below the corresponding insertion holes. After the metal inserts are inserted into the insertion holes, they will contact with the metal springs and be clamped by the metal springs to form an electrical connection;

[0012] A built-in anti-pullout component, the built-in anti-pullout component is located at the center of two metal plugs that are respectively inserted into the corresponding insertion holes, and the two metal plugs correspond to the neutral line and the live line; the built-in anti-pullout component includes two abutting arms, and the two abutting arms can respectively abut against the inner sides of the two metal plugs located on both sides of the built-in anti-pullout component; and

[0013] Built-in extraction aid;

[0014] When the plug needs to be pulled out, after the two pressing arms in the built-in anti-pulling component are separated from the corresponding two metal plugs, the built-in auxiliary pulling component can push up the plug to separate the two metal plugs from the corresponding metal springs.

[0015] A further configuration is that: the pressing arm in the built-in anti-pullout component is separated from the corresponding two metal plugs by pneumatic control, and the built-in auxiliary pullout component is pneumatically controlled to push up the plug; the built-in anti-pullout component and the built-in auxiliary pullout component are linkage structures and share the same pneumatic control source; the built-in auxiliary pullout component performs the operation of pushing up the plug after the built-in anti-pullout component controls the two pressing arms to separate from the corresponding two metal plugs.

[0016] Further configuration is: the built-in anti-extraction component includes a built-in shell fixed in the electrical socket body, and there is a distance between the built-in shell and the two metal inserts respectively inserted into the corresponding insertion holes; the lower half of the built-in shell is provided with a horizontal lower end chamber, and two groups of anti-extraction units are symmetrically arranged in the lower end chamber along the vertical central axis;

[0017] The two groups of anti-pulling units both include a force-bearing moving block, the outer side of the force-bearing moving block is fixedly provided with the abutting arm, the outer side of the lower end chamber is provided with a first opening for the abutting arm to extend outward from the lower end chamber, the cross-sectional height of the force-bearing moving block is greater than the abutting arm, and the force-bearing moving block can abut against the side wall of the built-in shell to limit the position;

[0018] There is a distance between the force-bearing moving blocks in the two groups of anti-pulling units and an external elastic spring is provided. The external elastic spring can provide elastic force for the two force-bearing moving blocks to move outward.

[0019] Further configuration is: a moving pad is fixedly arranged at the lower end of the force-bearing moving block through a locking piece, a recess is provided at the upper end of the moving pad for the lower end of the force-bearing moving block to extend into, and a second opening is provided on the outer side of the lower end chamber for the moving pad to move; an accompanying bottom block is fixedly arranged at the lower end of the moving pad through a locking piece;

[0020] The lower end of the built-in shell has a mounting opening, and a lower cover is fixedly arranged at the mounting opening; the lower end chamber is provided with a built-in bottom block fixed to the built-in shell through a locking piece, the built-in bottom block is located on the outer side of the accompanying bottom block, and the lower cover is fixed to the built-in bottom block through the locking piece;

[0021] When the force-bearing displacement block collides with the side wall of the built-in shell, a distance is provided between the accompanying bottom block and the built-in bottom block to form a first expansion zone; a first inner hole communicating with the first expansion zone is provided in the lower cover, and gas can be introduced into the first expansion zone through the first inner hole.

[0022] Further configuration is: the built-in auxiliary extraction component includes an upper chamber, the upper chamber is located in the upper half of the built-in shell, and the upper chamber and the lower chamber are separated by the transverse partition area of ​​the built-in shell; an auxiliary extraction block is slidably arranged in the upper chamber, the auxiliary extraction block is adapted to the upper chamber and can move vertically in the upper chamber, and an ejection outlet for the auxiliary extraction block to be ejected upward is provided at the upper end of the upper chamber; an auxiliary extraction slider is fixedly arranged on the right half of the lower end of the auxiliary extraction block, the auxiliary extraction slider can abut against the transverse partition area to limit the position, and the auxiliary extraction block can be hidden in the upper chamber;

[0023] A blocking transverse plate is fixedly provided on the left side wall of the upper end chamber through a locking piece, and an accompanying transverse plate is fixedly provided on the left side of the auxiliary pull-out slider, and the accompanying transverse plate is located below the blocking transverse plate. An inner retraction spring is provided between the blocking transverse plate and the accompanying transverse plate, and the inner retraction spring can provide elastic force for the accompanying transverse plate to move downward; when the auxiliary pull-out slider collides with the transverse partition area, a spacing is provided between the accompanying transverse plate and the transverse partition area to form a second expansion area, and a second inner hole communicating with the second expansion area is provided in the left side wall of the built-in shell, and gas can be introduced into the second expansion area through the second inner hole.

[0024] A further configuration is as follows: two communicating inner holes are provided in the lower cover, and the two communicating inner holes are respectively located on the inner sides of the two first inner holes; when the gas fills the two first expansion areas, the two first expansion areas will expand and push the two accompanying bottom blocks inward, and as the two accompanying bottom blocks move inward, the two first expansion areas will respectively communicate with the corresponding communicating inner holes; and mutual communication is achieved between the second inner hole and the two communicating inner holes by setting a plurality of sections of first inner tubes and a first three-way connecting pipe.

[0025] Further configuration is: an air inlet hole is fixedly provided on the surface of the electrical socket body; an automatic air locking unit is provided inside the electrical socket body and is located below the built-in shell, the automatic air locking unit comprises an air locking inner shell, an air locking inner cavity is provided inside the air locking inner shell, an air locking hole is provided at the upper end of the air locking inner cavity, and the air locking hole and the two first inner holes are interconnected by providing a plurality of sections of second inner tubes and a second three-way pipe;

[0026] An air locking slider is horizontally slidingly arranged in the air locking cavity, a locking contact block is fixedly arranged at the central position of the left end of the air locking slider, the locking contact block is an axisymmetric structure, and the cross-sectional height of the locking contact block gradually increases from left to right; fixed seats are fixedly arranged on the upper and lower inner walls of the left end of the air locking cavity, respectively, and sealing protrusions are fixedly arranged on the two sides of the fixed seats facing each other, and the left end of the locking contact block is a sealing area; the two sealing protrusions can respectively contact the sealing area to separate the air inlet and the air locking hole; an air locking spring is arranged in the air locking cavity to contact the air locking slider to provide an elastic force for the air locking slider to move to the left.

[0027] A further configuration is that: an exhaust hole is opened on the surface of the electrical socket body, and a sealing plug is inserted into the exhaust hole to close it; the first inner tube and the second inner tube are interconnected through the third inner tube, and the third inner tube is connected to the exhaust hole.

[0028] A further configuration is that: a plurality of notches with triangular cross sections are provided at the outer ends of the two abutting arms, and damping filling blocks are fixedly filled in each of the notches.

[0029] In order to achieve the above object, the present invention provides an application method of a building electrical socket, comprising the following steps:

[0030] When configuring the plug, a small amount of gas is introduced into the air inlet, and the two pressing arms are moved inwards under the premise that the auxiliary ejection block is hidden in the upper chamber, so as to avoid obstruction of the plug from being inserted into the electrical socket body; after the plug is inserted into the electrical socket body, the sealing plug is opened to exhaust gas, so that the two pressing arms can respectively press against the inner sides of the corresponding metal plugs;

[0031] When removing the plug, a large amount of gas is introduced into the air inlet. After the two pressing arms move inward, the plug is pushed out of the auxiliary ejection block and the plug can be pulled out upward. Then, the sealing plug is opened to exhaust air, so that the auxiliary ejection block returns to its position and hides in the upper chamber.

[0032] The present invention has the following beneficial effects:

[0033] 1. In the present invention, an upper limit block is provided in the body of the electrical socket for inserting the metal plug of the plug, and can limit the metal plug; the metal spring can be connected with the corresponding metal plug, and then form an electrical connection with the mains; the two pressing arms in the built-in anti-pullout component can respectively press against the inner sides of the two metal plugs, thereby realizing anti-pullout control of the plug; the built-in auxiliary pullout component can push up the plug after the two pressing arms are separated from the corresponding two metal plugs, so that the two metal plugs are separated from the corresponding metal springs, thereby facilitating the user to pull out the plug without contact, safely and easily. The present invention sets the built-in anti-pullout structure and the built-in auxiliary pullout structure together in an electrical socket body, which not only has the functions of anti-pullout and auxiliary pullout, but also realizes integration through linkage, and is creative.

[0034] 2. In the present invention, the built-in anti-pullout component and the built-in auxiliary pullout component are a linkage structure, and only one pneumatic control source is used to control the built-in anti-pullout component and the built-in auxiliary pullout component, which has the advantages of simplifying control and maintenance, reducing purchase costs and reducing energy consumption.

[0035] 3. In the present invention, there is a distance between the built-in shell and the metal plug in the built-in anti-pullout component, which can avoid collision between the built-in shell and the metal plug; the two clamping arms in the two groups of anti-pullout units can respectively clamp the two metal plugs, and the force-bearing moving block can be pressed against the side wall of the built-in shell to limit the position; the external spring can also provide elastic force for the force-bearing moving block to move outward, thereby optimizing the structure and reducing costs.

[0036] 4. In the present invention, the recessed groove on the movable pad is used for the force-bearing movable block to be embedded and fixed, and the second opening is used for the movable pad to move; the installation opening provides installation space for the movable pad, the force-bearing movable block, the built-in bottom block, etc.; the first expansion zone between the accompanying bottom block and the built-in bottom block can receive the introduced gas, and the side wall of the built-in shell can collide with the force-bearing movable block in advance to maintain the existence of the first expansion zone; the first inner hole can introduce gas into the first expansion zone.

[0037] 5. In the present invention, the transverse partition area can separate the upper chamber and the lower chamber which are independent of each other. The upper chamber is provided with an auxiliary ejection block, and the auxiliary ejection slider is fixed at the lower end of the auxiliary ejection block to drive the auxiliary ejection block to move; the auxiliary ejection block can be hidden in the upper chamber to avoid obstructing the plug; the blocking transverse plate can collide with the accompanying transverse plate to prevent the auxiliary ejection block and the auxiliary ejection slider from completely escaping from the upper chamber; a space for installing the retraction spring is formed between the blocking transverse plate and the accompanying transverse plate; the second expansion zone between the accompanying transverse plate and the transverse partition area can receive the introduced gas, and the transverse partition area can collide with the auxiliary ejection slider in advance to maintain the existence of the second expansion zone; the second inner hole can introduce gas into the second expansion zone.

[0038] 6. In the present invention, when the gas fills the two first expansion areas, the two first expansion areas will expand and push the two accompanying bottom blocks inward. As the two accompanying bottom blocks are pushed inward, the two first expansion areas will be connected to the corresponding connecting inner holes respectively, and the gas can then be introduced into the second inner hole through the first inner tube and the first three-way pipe. After the gas is introduced into the second expansion area, the second expansion area will expand and push the auxiliary pull-out block upward, and then the auxiliary pull-out block will push up the plug, so that the two clamping arms are separated from the corresponding two metal inserts, and the user can easily, labor-savingly and installably pull out the plug upward.

[0039] 7. In the present invention, gas leakage can be prevented by setting an automatic air locking unit; the air locking slider will be pushed by the air locking spring and keep moving to the left under normal conditions, and the sealing area will be in close contact with the two sealing protrusions to separate the air inlet and the air locking hole; when the air inlet is introduced into the air, the gas will push the air locking slider to move right, thereby connecting the air inlet and the air locking hole, and the gas will continue to enter and then be introduced into the first expansion area; when the air inlet is not introduced into the air, the sealing area will be in close contact with the two sealing protrusions again, thereby preventing gas leakage in the first expansion area.

[0040] 8. In the present invention, the provision of the exhaust hole can facilitate the exhaust of the gas remaining in the first expansion zone and the second expansion zone, and the sealing plug plays the role of opening and closing the exhaust hole.

[0041] 9. In the present invention, the damping filler filled on the outer side of the abutment arm can increase the friction resistance between the metal insert and the metal insert, thereby further enhancing the anti-pullout effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of an embodiment;

[0043] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0044] Figure 3 for Figure 2 Enlarged view of middle part B;

[0045] Figure 4 for Figure 2 Enlarged view of part C in the middle.

[0046] In the figure: 11, plug; 12, metal insert; 21, electrical socket body; 22, upper limit block; 221, insertion hole; 23, metal spring; 30, tight arm; 301, notch; 302, damping filler; 31, built-in shell; 32, lower chamber; 33, force-bearing shift block; 34, first opening; 35, external spring; 36, moving pad; 361, recessed groove; 37, second opening; 38, accompanying bottom block; 39, built-in bottom block; 41, installation port; 42, lower cover; 43, first expansion area; 44, first inner hole; 51, upper chamber; 52, horizontal partition area; 53, pull-out aid Ejector block; 54, ejector outlet; 55, pull-out aid slider; 56, blocking cross plate; 57, accompanying cross plate; 58, retraction spring; 61, second expansion zone; 62, second inner hole; 71, connecting inner hole; 721, first inner tube; 722, first three-way pipe; 731, second inner tube; 732, second three-way pipe; 81, air inlet; 82, air-locking inner shell; 83, air-locking inner cavity; 84, air-locking hole; 85, air-locking slider; 86, locking contact block; 861, sealing zone; 87, fixing seat; 871, sealing protrusion; 88, air-locking spring; 91, exhaust hole; 92, sealing plug; 93, third inner tube. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0048] As attached Figures 1 to 4 As shown;

[0049] The present embodiment discloses a building electrical socket, including an electrical socket body 21 for forming an electrical connection after a plug 11 is inserted; the plug 11 has a plurality of metal inserts 12, and the electrical socket body 21 is configured with:

[0050] The upper end stopper 22 has the same number as the metal inserts 12 of the plug 11, and the upper end stopper 22 has an insertion hole 221 for inserting the metal inserts 12 of the plug 11, and the insertion hole 221 also has the function of limiting the metal inserts 12;

[0051] Optionally, the structure of the insertion hole 221 is wide at the top and narrow at the bottom to facilitate the insertion of the metal insert 12, and the width of the lower part of the insertion hole 221 will be adapted to the metal insert 12 to prevent the metal insert 12 from shaking;

[0052] The number of metal springs 23 is the same as that of the metal inserts 12 of the plug 11. The metal springs 23 are located below the corresponding insertion holes 221. After the metal inserts 12 are inserted into the insertion holes 221, they will contact with the metal springs 23 and be clamped by the metal springs 23 to form an electrical connection;

[0053] A built-in anti-pullout component, which is located at the center of two metal plugs 12 that are respectively inserted into the corresponding insertion holes 221, and the two metal plugs 12 correspond to the neutral line and the live line; the built-in anti-pullout component includes two abutting arms 30, and the two abutting arms 30 can respectively abut against the inner sides of the two metal plugs 12 located on both sides of the built-in anti-pullout component; and

[0054] Built-in extraction aid;

[0055] When the plug 11 needs to be unplugged, after the two pressing arms 30 in the built-in anti-unplugging assembly are separated from the corresponding two metal plugs 12 , the built-in auxiliary unplugging assembly can push up the plug 11 to separate the two metal plugs 11 from the corresponding metal springs 23 .

[0056] It should be noted that the electrical socket body 21 is preferably adapted to the two-pronged plug 11, and the two metal inserts 12 of the two-pronged plug 11 correspond to the neutral wire and the live wire;

[0057] Optionally, the electrical socket body 21 can also be adapted to the American standard three-pin plug 11, and the metal inserts 12 on both sides of the American standard three-pin plug 11 are vertically parallel and correspond to the neutral wire and the live wire.

[0058] Optionally, the electrical socket body 21 can be adapted to the national standard three-pin plug 11 by replacing the abutting arm 30 .

[0059] Among them, the clamping arm 30 in the built-in anti-pullout component is separated from the corresponding two metal plugs 12 by pneumatic control, and the built-in auxiliary pullout component is pneumatically controlled to push up the plug 11; the built-in anti-pullout component and the built-in auxiliary pullout component are linkage structures, and share the same pneumatic control source; the built-in auxiliary pullout component performs the operation of pushing up the plug 11 after the built-in anti-pullout component controls the two clamping arms 30 to separate from the corresponding two metal plugs 12.

[0060] The built-in anti-extraction component includes a built-in shell 31 fixed in the electrical socket body 21, and there is a distance between the built-in shell 31 and the two metal inserts 12 respectively inserted into the corresponding insertion holes 221; the lower half of the built-in shell 31 is provided with a horizontal lower end chamber 32, and two groups of anti-extraction units are symmetrically arranged in the lower end chamber 32 along the vertical central axis;

[0061] Both groups of anti-pulling units include a force-bearing moving block 33, the outer side of which is fixedly provided with the abutting arm 30, and the outer side of the lower end chamber 32 is provided with a first opening 34 for the abutting arm 30 to extend outward from the lower end chamber 32, the cross-sectional height of the force-bearing moving block 33 is greater than the abutting arm 30, and the force-bearing moving block 33 can abut against the side wall of the built-in housing 31 to limit the position;

[0062] There is a distance between the force-bearing moving blocks 33 in the two groups of anti-pulling units and external elastic springs 35 are provided therebetween. The external elastic springs 35 can provide elastic force for the two force-bearing moving blocks 33 to move outward.

[0063] The lower end of the force-bearing moving block 33 is fixedly provided with a moving cushion block 36 through a locking piece, the upper end of the moving cushion block 36 is provided with a recessed groove 361 for the lower end of the force-bearing moving block 33 to extend into, and the outer side of the lower end chamber 32 is provided with a second opening 37 for the moving cushion block 36 to move; the lower end of the moving cushion block 36 is fixedly provided with an accompanying bottom block 38 through a locking piece;

[0064] Optionally, the locking members used in this embodiment are all bolts;

[0065] The lower end of the built-in housing 31 has a mounting opening 41, and a lower cover 42 is fixedly arranged at the mounting opening 41; a built-in bottom block 39 fixed to the built-in housing 31 through a locking member is arranged in the lower end chamber 32, and the built-in bottom block 39 is located on the outer side of the accompanying bottom block 38, and the lower cover 42 is fixed to the built-in bottom block 39 through a locking member;

[0066] When the force-bearing displacement block 33 collides with the side wall of the built-in shell 31, a distance is provided between the bottom block 38 and the built-in bottom block 39 to form a first expansion zone 43; a first inner hole 44 communicating with the first expansion zone 43 is provided in the lower cover 42, and gas can be introduced into the first expansion zone 43 through the first inner hole 44.

[0067] The built-in auxiliary extraction component includes an upper chamber 51, which is located in the upper half of the built-in shell 31. The upper chamber 51 and the lower chamber 32 are separated by a transverse partition area 52 of the built-in shell 31; an auxiliary extraction block 53 is slidably arranged in the upper chamber 51, and the auxiliary extraction block 53 is adapted to the upper chamber 51 and can move vertically in the upper chamber 51. An ejection outlet 54 is provided at the upper end of the upper chamber 51 for the auxiliary extraction block 53 to be ejected upward; an auxiliary extraction slider 55 is fixedly arranged on the right half of the lower end of the auxiliary extraction block 53, and the auxiliary extraction slider 55 can abut against the transverse partition area 52 to limit the position, and the auxiliary extraction block 53 can be hidden in the upper chamber 51;

[0068] A blocking transverse plate 56 is fixedly provided on the left side wall of the upper end chamber 51 through a locking piece, and an accompanying transverse plate 57 is fixedly provided on the left side of the auxiliary pull-out slider 55. The accompanying transverse plate 57 is located below the blocking transverse plate 56, and an inner retraction spring 58 is provided between the blocking transverse plate 56 and the accompanying transverse plate 57. The inner retraction spring 58 can provide elastic force for the accompanying transverse plate 57 to move downward; when the auxiliary pull-out slider 55 collides with the transverse partition area 52, there is a spacing between the accompanying transverse plate 57 and the transverse partition area 52 to form a second expansion area 61, and a second inner hole 62 communicated with the second expansion area 61 is opened in the left side wall of the built-in shell 31, and gas can be introduced into the second expansion area 61 through the second inner hole 62.

[0069] Among them, two connecting inner holes 71 are provided in the lower cover 42, and the two connecting inner holes 71 are respectively located on the inner sides of the two first inner holes 44; when the gas fills the two first expansion areas 43, the two first expansion areas 43 will expand and push the two accompanying bottom blocks 38 inward, and as the two accompanying bottom blocks 38 move inward, the two first expansion areas 43 will be respectively communicated with the corresponding connecting inner holes 71; the second inner hole 62 and the two connecting inner holes 71 are interconnected by setting a plurality of sections of first inner tubes 721 and a first three-way pipe 722.

[0070] Among them, an air inlet 81 is fixedly provided on the surface of the electrical socket body 21; an automatic air locking unit located below the built-in shell 31 is provided inside the electrical socket body 21, and the automatic air locking unit includes an air locking inner shell 82, an air locking inner cavity 83 is provided inside the air locking inner shell 82, and an air locking hole 84 is provided at the upper end of the air locking inner cavity 83, and the air locking hole 84 and the two first inner holes 44 are interconnected by providing a plurality of second inner tubes 731 and a second three-way pipe 732;

[0071] An air locking slider 85 is horizontally slidingly arranged in the air locking cavity 83, and a locking contact block 86 is fixedly arranged at the central position of the left end of the air locking slider 85. The locking contact block 86 is an axially symmetrical structure, and the cross-sectional height of the locking contact block 86 gradually increases from left to right; fixed seats 87 are fixedly arranged on the upper and lower inner walls of the left end of the air locking cavity 83, and sealing protrusions 871 are fixedly arranged on the two fixed seats 87 facing each other, and the left end of the locking contact block 86 is a sealing area 861; the two sealing protrusions 871 can respectively contact the sealing area 861 to separate the air inlet 81 from the air locking hole 84; an air locking spring 88 is arranged in the air locking cavity 83 to contact the air locking slider 85 to provide an elastic force for the air locking slider 85 to move to the left.

[0072] Optionally, the sealing protrusion and the sealing area 861 are both made of synthetic rubber.

[0073] The electrical socket body 21 has an exhaust hole 91 on its surface, and a sealing plug 92 is inserted into the exhaust hole 91 to seal it; the first inner tube 721 and the second inner tube 731 are connected to each other through the third inner tube 93, and the third inner tube 93 is connected to the exhaust hole 91.

[0074] Optionally, during mold production of the electrical socket body 21 , a recessed area can be provided for the placement and layout of the first inner tube 721 , the second inner tube 731 , the third inner tube 93 , the first three-way pipe 722 , and the second three-way pipe 732 .

[0075] The outer end of the pressing arm 30 is provided with a plurality of notches 301 with triangular cross sections, and each notch 301 is fixedly filled with a damping filler block 302 , which is a synthetic rubber.

[0076] This embodiment discloses an application method of a building electrical socket, comprising the following steps:

[0077] When the plug 11 is configured, a small amount of gas is introduced into the air inlet 81, and the two pressing arms 30 are moved inwards under the premise that the auxiliary ejection block 53 is hidden in the upper end chamber 51, so as to avoid obstruction of the plug 11 from being inserted into the electrical socket body 21; after the plug 11 is inserted into the electrical socket body 21, the sealing plug 92 is opened to exhaust gas, so that the two pressing arms 30 can respectively press against the inner side of the corresponding metal insert 12;

[0078] When removing the plug 11, a large amount of gas is introduced into the air inlet 81. After the two abutting arms 30 move inward, the auxiliary ejection block 53 pushes out the plug 11, and the plug 11 can be pulled out upward; then, the sealing plug 92 is opened to exhaust gas, so that the auxiliary ejection block 53 returns to its original position and hides in the upper end chamber 51.

[0079] The working principle of this embodiment is:

[0080] It should be noted that the present embodiment is adapted to an air pump with an air pressure value of 120PSI. After a complete inflation operation, the gas enters the first expansion zone 43 and causes the first expansion zone 43 to expand. The two clamping arms 30 can move inward to avoid obstructing the normal insertion of the metal insert 12. At this time, the connecting inner hole 71 will be in a state of being closed by the accompanying bottom block 38, and the connecting inner hole 71 is separated from the first expansion zone 43, and the auxiliary pull-out block 53 will not move up.

[0081] 1. When configuring the plug 11, a small amount of gas is introduced into the air inlet 81 through an air pump (for an air pump with an air pressure value of 120PSI, only one complete air pumping operation is required), and the two pressing arms 30 are moved inwardly under the premise that the auxiliary ejection block 53 is hidden in the upper chamber 51 to avoid obstruction of the plug 11 from being inserted into the electrical socket body 21; after the plug 11 is inserted into the electrical socket body 21, the sealing plug 92 is opened to exhaust air, so that the two pressing arms 30 can respectively press against the inner sides of the corresponding metal inserts 12.

[0082] The gas flow path is: the gas is introduced into the first expansion area 43 through the air inlet 81, the air locking hole 84, the second three-way pipe 732, the second inner tube 731 and the first inner hole 44. The two first expansion areas 43 will expand and push the two accompanying bottom blocks 38 inward, so that the two clamping arms 30 move inward.

[0083] 2. When removing the plug 11, a large amount of gas is introduced into the air inlet 81 through an air pump (for an air pump with an air pressure value of 120PSI, only four complete air-inflation operations are required). The introduction of gas will cause the two abutting arms 30 to move inward, and after the two abutting arms 30 move inward, the ejection-assisting block 53 can push out the plug 11, and the plug 11 can be pulled out upward; then, open the sealing plug 92 to exhaust the air, so that the ejection-assisting block 53 returns to its original position and hides in the upper chamber 51.

[0084] The gas flow path is as follows: after the gas is introduced into the first expansion zone 43, the two first expansion zones 43 will expand and push the two accompanying bottom blocks 38 inward, so that the two clamping arms 30 move inward; as the two accompanying bottom blocks 38 move inward, the two first expansion zones 43 will respectively communicate with the corresponding connecting inner holes 71, and the gas can then be introduced into the second inner hole 62 through the first inner tube 721 and the first three-way pipe 722. After the gas is introduced into the second expansion zone 61, the second expansion zone 61 will expand and push the auxiliary pull-out block 53 upward, and then the auxiliary pull-out block 53 will push up the plug 11, so that the two clamping arms 30 are separated from the corresponding two metal inserts 12, and the user can easily, labor-savingly and safely pull out the plug 11 upward.

[0085] The above disclosure is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A building electrical socket, characterized in that: The invention comprises an electrical socket body (21) for forming an electrical connection after a plug (11) is inserted; the plug (11) has a plurality of metal inserts (12), and the electrical socket body (21) is provided with: An upper end limit block (22) having the same number as the metal inserts (12) of the plug (11), wherein an insertion hole (221) for inserting the metal inserts (12) of the plug (11) is provided in the upper end limit block (22), and the insertion hole (221) also has the function of limiting the metal inserts (12); The number of metal springs (23) is the same as that of the metal inserts (12) of the plug (11), the metal springs (23) being located below the corresponding insertion holes (221), and the metal inserts (12) being in contact with the metal springs (23) after being inserted into the insertion holes (221) and being clamped by the metal springs (23) to form an electrical connection; A built-in anti-pullout component, the built-in anti-pullout component is located at the center of two metal plugs (12) respectively inserted into corresponding insertion holes (221), the two metal plugs (12) corresponding to the neutral line and the live line; the built-in anti-pullout component comprises two abutting arms (30), the two abutting arms (30) can respectively abut against the inner sides of the two metal plugs (12) located on both sides of the built-in anti-pullout component; and Built-in extraction aid; When the plug (11) needs to be pulled out, after the two abutting arms (30) in the built-in anti-pulling component are separated from the corresponding two metal plugs (12), the built-in auxiliary pulling component can push up the plug (11) so that the two metal plugs (11) are separated from the corresponding metal springs (23); The abutting arms (30) in the built-in anti-pullout component are separated from the corresponding two metal inserts (12) by means of pneumatic control, and the built-in auxiliary pullout component is pneumatically controlled to push up the plug (11); the built-in anti-pullout component and the built-in auxiliary pullout component are linkage structures and share the same pneumatic control source; the built-in auxiliary pullout component performs the operation of pushing up the plug (11) after the built-in anti-pullout component controls the two abutting arms (30) to separate from the corresponding two metal inserts (12); The built-in anti-pullout component comprises a built-in shell (31) fixed in the electrical socket body (21), and a distance is provided between the built-in shell (31) and two metal inserts (12) respectively inserted into the corresponding insertion holes (221); a horizontal lower end chamber (32) is provided in the lower half of the built-in shell (31), and two groups of anti-pullout units are symmetrically arranged in the lower end chamber (32) along the vertical center axis; The two groups of anti-pulling units both include a force-bearing shift block (33), the outer side of the force-bearing shift block (33) is fixedly provided with the abutting arm (30), the outer side of the lower end chamber (32) is provided with a first opening (34) for the abutting arm (30) to extend outward from the lower end chamber (32), the cross-sectional height of the force-bearing shift block (33) is greater than the abutting arm (30), and the force-bearing shift block (33) can abut against the side wall of the built-in shell (31) to limit the position; There is a distance between the force-bearing shifting blocks (33) in the two groups of anti-pulling units and external elastic springs (35) are provided therebetween. The external elastic springs (35) can provide elastic force for the two force-bearing shifting blocks (33) to move outward.

2. A building electrical socket according to claim 1, characterized in that: A moving cushion block (36) is fixedly arranged at the lower end of the force-bearing moving block (33) by a locking piece, a recessed groove (361) is provided at the upper end of the moving cushion block (36) for the lower end of the force-bearing moving block (33) to extend into, and a second opening (37) is provided on the outer side of the lower end chamber (32) for the moving cushion block (36) to move; an accompanying bottom block (38) is fixedly arranged at the lower end of the moving cushion block (36) by a locking piece; The lower end of the built-in shell (31) has a mounting opening (41), and a lower cover (42) is fixedly arranged at the mounting opening (41); a built-in bottom block (39) fixed to the built-in shell (31) through a locking piece is arranged in the lower end chamber (32), the built-in bottom block (39) is located on the outer side of the accompanying bottom block (38), and the lower cover (42) is fixed to the built-in bottom block (39) through the locking piece; When the force-bearing displacement block (33) collides with the side wall of the built-in shell (31), a spacing is provided between the accompanying bottom block (38) and the built-in bottom block (39) to form a first expansion zone (43); a first inner hole (44) communicating with the first expansion zone (43) is provided in the lower cover (42), and gas can be introduced into the first expansion zone (43) through the first inner hole (44).

3. A building electrical socket according to claim 2, characterized in that: The built-in auxiliary extraction component comprises an upper chamber (51), the upper chamber (51) is located in the upper half of the built-in shell (31), and the upper chamber (51) and the lower chamber (32) are separated by a transverse partition area (52) of the built-in shell (31); an auxiliary extraction block (53) is slidably arranged in the upper chamber (51), the auxiliary extraction block (53) is adapted to the upper chamber (51) and can move vertically in the upper chamber (51), and an ejection outlet (54) is provided at the upper end of the upper chamber (51) for the auxiliary extraction block (53) to be ejected upward; an auxiliary extraction slider (55) is fixedly arranged at the right half of the lower end of the auxiliary extraction block (53), the auxiliary extraction slider (55) can abut against the transverse partition area (52) to limit the position, and the auxiliary extraction block (53) can be hidden in the upper chamber (51); A blocking transverse plate (56) is fixedly arranged on the left side wall of the upper end chamber (51) through a locking piece, and an accompanying transverse plate (57) is fixedly arranged on the left side of the auxiliary pull-out slider (55). The accompanying transverse plate (57) is located below the blocking transverse plate (56). An inner retraction spring (58) is arranged between the blocking transverse plate (56) and the accompanying transverse plate (57). The inner retraction spring (58) can provide elastic force for the accompanying transverse plate (57) to move downward; when the auxiliary pull-out slider (55) collides with the transverse partition area (52), a spacing is formed between the accompanying transverse plate (57) and the transverse partition area (52) to form a second expansion area (61), and a second inner hole (62) communicating with the second expansion area (61) is opened in the left side wall of the built-in shell (31), and gas can be introduced into the second expansion area (61) through the second inner hole (62).

4. A building electrical socket according to claim 3, characterized in that: Two communicating inner holes (71) are provided in the lower cover (42), and the two communicating inner holes (71) are respectively located on the inner sides of the two first inner holes (44); when the gas fills the two first expansion areas (43), the two first expansion areas (43) will expand and push the two accompanying bottom blocks (38) inwardly, and as the two accompanying bottom blocks (38) are pushed inwardly, the two first expansion areas (43) will respectively communicate with the corresponding communicating inner holes (71); and a plurality of first inner tubes (721) and a first three-way pipe (722) are provided between the second inner hole (62) and the two communicating inner holes (71) to achieve mutual communication.

5. A building electrical socket according to claim 4, characterized in that: An air inlet (81) is fixedly provided on the surface of the electrical socket body (21); an automatic air locking unit located below the built-in shell (31) is provided inside the electrical socket body (21); the automatic air locking unit comprises an air locking inner shell (82); an air locking inner cavity (83) is provided inside the air locking inner shell (82); an air locking hole (84) is provided at the upper end of the air locking inner cavity (83); and a plurality of second inner tubes (731) and a second three-way pipe (732) are provided between the air locking hole (84) and the two first inner holes (44) to achieve mutual communication; An air locking slider (85) is horizontally slidably arranged in the air locking cavity (83), and a locking contact block (86) is fixedly arranged at the central position of the left end of the air locking slider (85). The locking contact block (86) is an axisymmetric structure, and the cross-sectional height of the locking contact block (86) gradually increases from left to right; the upper and lower inner walls of the left end of the air locking cavity (83) are respectively fixedly arranged with fixed seats (87), and the two fixed seats (87) are fixedly arranged with sealing protrusions (871) on one side facing each other, and the left end of the locking contact block (86) is a sealing area (861); the two sealing protrusions (871) can respectively contact the sealing area (861) to separate the air inlet (81) and the air locking hole (84); an air locking spring (88) is arranged in the air locking cavity (83) to contact the air locking slider (85) to provide an elastic force for the air locking slider (85) to move leftward.

6. A building electrical socket according to claim 5, characterized in that: An exhaust hole (91) is provided on the surface of the electrical socket body (21), and a sealing plug (92) is inserted into the exhaust hole (91) to seal it; the first inner tube (721) and the second inner tube (731) are interconnected through a third inner tube (93), and the third inner tube (93) is in communication with the exhaust hole (91).

7. A building electrical socket according to claim 1, characterized in that: The outer ends of the two abutting arms (30) are each provided with a plurality of notches (301) with triangular cross sections, and each of the notches (301) is fixedly filled with a damping filling block (302).

8. An application method of a building electrical socket, applied to the building electrical socket according to any one of claims 1 to 7, characterized in that: The following steps are included: When the plug (11) is configured, a small amount of gas is introduced into the air inlet (81), and the two abutting arms (30) are moved inwardly under the premise that the auxiliary extraction block (53) is hidden in the upper end chamber (51), so as to avoid obstruction of the plug (11) from being inserted into the electrical socket body (21); after the plug (11) is inserted into the electrical socket body (21), the sealing plug (92) is opened to exhaust gas, so that the two abutting arms (30) can respectively abut against the inner side of the corresponding metal plug (12); When removing the plug (11), a large amount of gas is introduced into the air inlet (81), and after the two abutting arms (30) move inward, the auxiliary ejection block (53) ejects the plug (11), and the plug (11) can be pulled out upward; then, the sealing plug (92) is opened to exhaust gas, so that the auxiliary ejection block (53) returns to its original position and hides in the upper end chamber (51).

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