CN110676628A - A convertible cartridge plug-in board - Google Patents

Abstract

The invention relates to a convertible cylinder plug board, which comprises a board main body, a cylinder plug, a sleeve connector, an electric shock prevention sleeve set, an external plug and a wire tube, wherein the board main body is provided with a plurality of through holes; the method is characterized in that: the inserting plate main body is also provided with a blocking plate and a bottom plate; the partition plate divides the plug board main body into a use cavity and a circuit cavity, and one or more fixed bottom posts are further arranged on the partition plate; the electric shock prevention sleeve set consists of a bottom sleeve, a live wire reset contact ring, a reset spring, an insulating isolation plate, a live wire conductive fixing plate and a covering component; a fixed inner ring platform and a limiting inner ring platform are arranged in the bottom sleeve; a fixed outer boss and a limiting outer boss are arranged outside the fixed bottom column; the bottom sleeve is sleeved on the fixed bottom column, a movable inner annular cavity is formed between the fixed inner annular platform and the fixed outer boss, and a live wire inner annular cavity is formed between the limiting outer boss and the limiting inner annular platform; the live wire reset contact ring, the reset spring and the insulating isolation plate are sequentially arranged in the movable inner ring cavity. The invention has the functions of high-grade water resistance and electric shock resistance, is convenient to use and can be directly used.

Description

A convertible cartridge plug-in board

technical field

The invention relates to a plug-in board, in particular to a convertible-tube plug-in board.

Background technique

Today, in the 21st century, there are many types of sockets on the market, mainly around the functions of anti-electric shock, lightning protection, anti-surge and other functions, and these protection functions also have different levels, and different protection levels have different protection capabilities; The existing anti-electric shock mainly achieves the purpose of preventing electric shock by preventing people from entering into the circuit structure; this kind of anti-electric shock level, relative to the anti-electric shock, is a low-level protection method, and its specificity cannot be To achieve a moderate level of splash water and electric shock; it is impossible to achieve a high level of waterproof and electric shock; and with the development of the times, the low-level anti-electric shock can no longer meet the increasingly complex lifestyle.

Some advanced anti-shock structures are very inconvenient to use.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problem of preventing electric shock, to provide a switchable cartridge plug-in board, and to provide a high-level waterproof and electric shock-proof socket.

In order to realize the above-mentioned purpose of the invention, the present invention adopts the following technical solutions:

A convertible cartridge plug-in board, comprising a plug-in board main body, a plug-in plug, a socket, an anti-electric shock sleeve, an external plug and a wire tube; it is characterized in that: the plug-in board main body is further provided with a blocking plate and a bottom The blocking board divides the main body of the plug-in board into a use cavity and a circuit cavity, and one or more fixed bottom columns are also arranged on the blocking board; , an insulating isolation plate, a live wire conductive fixing plate and a cover assembly; the bottom sleeve is provided with a fixed inner ring platform and a limit inner ring platform; the fixed bottom column is provided with a fixed outer boss and a limit outer boss The bottom sleeve is sleeved on the fixed bottom column, a movable inner ring cavity is formed between the fixed inner ring platform and the fixed outer boss, and the limit outer boss and the limit inner ring platform are formed between The live wire inner ring cavity; the live wire reset contact ring, the reset spring, the insulating isolation plate are sequentially installed into the movable inner ring cavity, the live wire reset contact ring is partially located in the live wire inner ring cavity, and the live wire conductive fixing plate is buckled or screw fit, fixed outside the movable inner ring cavity; the reset spring is specifically located between the live wire reset contact ring and the insulation isolation plate; the insulation isolation plate is provided with a live wire through hole; the live wire conductive fixing plate There is also an extended contact boss and a live wire connection fixing seat, and the extended contact boss runs through the live wire through hole;

The covering component is composed of a covering sleeve, a neutral wire conductive sleeve, an insulating isolation sleeve and a ground wire conductive sleeve; the covering sleeve is provided with a neutral wire guide groove and a ground wire guide groove; the neutral wire conducts electricity A neutral wire connection fixing seat is arranged on the collar; a ground wire connection fixing seat is arranged on the ground wire conductive collar; On the sleeve, the insulating isolation collar is specifically located between the neutral wire conductive collar and the ground wire conductive collar; the neutral wire connection fixing seat is sleeved in the neutral wire guide groove; the ground wire connection fixing seat sleeve Connected to the ground wire guide groove;

The cover assembly is fixed in the bottom sleeve by means of snap-fit and thread fit;

The surface of the barrel plug is provided with an insulating elastic sleeve, and the insulating elastic sleeve is provided with two or more clamping parts, and the clamping parts are sequentially provided with a zero line contact and a ground line contact from top to bottom. head and live contacts;

The socket is composed of two socket covers and a collar; the surface of the socket is also provided with a national standard plug interface; the external plug first passes through the collar and cooperates with the national standard interface plug, and then two The socket cover wraps the external plug, and finally the collar is fixed to the outer ring portion of the combined socket cover by means of threads or snaps.

When in use: the socket is sleeved with the anti-shock sleeve, so that the neutral contact, the ground contact and the live contact are respectively connected with the neutral conductive collar, the ground conductive collar and the live reset contact ring. At the same time, a conflicting elastic force is generated between the insulating elastic sleeve and the blocking plate, and the insulating elastic sleeve moves back together with the clamping part, so that the live wire contact starts to squeeze the live wire reset contact ring to overcome the elastic force of the internal reset spring, Contact with the extended contact boss to conduct electricity; at this time, the elastic force generated between the insulating elastic sleeve and the barrier plate has declined, and the remaining force is still greater than the elastic force of the return spring, but the clamping part cannot be released from the electric shock Set; form a balance of forces to ensure normal power on;

When not in use: Continue to pull the cartridge plug out to break the originally formed force balance, so that the clamping part is separated from the anti-shock set.

As a preference of the present invention, one or more drainage holes are provided at the bottom of the use cavity.

As a preference of the present invention: the electric wire tube is composed of a live wire, a neutral wire and a ground wire; one end of the live wire is fixed in the live wire connection fixing seat; one end of the neutral wire is fixed in the neutral wire connection fixing seat; the ground wire One end of the wire is fixed to the ground wire connection holder.

As a preferred option of the present invention, the socket cover is provided with a circuit half opening, and both the socket cover and the circuit half opening are also provided with a sealing ring.

As a preference of the present invention: the main body of the plug-in board is also provided with a use cavity sealing plate; the use cavity sealing plate is provided with openings with the same number as the anti-shock components, and the diameter of the openings is larger than the diameter of the plug-in plug Size; the use cavity sealing plate is used to reduce the exposed area of the use cavity.

As a preferred aspect of the present invention, the main body of the plug-in board is further provided with a circuit sealing board; the circuit sealing board is used to close the circuit cavity.

As a preference of the present invention: the length of the insulating elastic sleeve is longer than the sum of the distance between the anti-electric shock assembly and the barrier plate, the squeezing rebound distance of the live wire reset contact ring and the error distance; Before the contact ring is completely separated from the live wire, the insulating elastic sleeve is still closely matched with the blocking plate; the liquid and gas inside and outside the insulating elastic sleeve are blocked by the insulating elastic sleeve and cannot flow; and when the live wire contact is completely separated from the live wire After the contact ring is reset, the moving distance of the contact ring needs to be greater than the error distance before the insulating elastic sleeve is separated from the blocking plate, so that the liquid inside and outside the insulating elastic sleeve can circulate again.

As a further preference of the present invention: the insulating elastic sleeve is sealed with the blocking plate before the live wire contact contacts the live wire reset contact ring; and after the live wire contact contacts the live wire reset contact ring, the pressing external force disappears , the insulating elastic sleeve will release the excess elastic force, so that the live wire contact squeezes the live wire reset contact ring, so that the live wire reset contact ring and the extended contact boss come into contact; at this time, the live wire circuit is connected.

As a further preference of the present invention: the outer height of the ground wire conductive sleeve ring is higher than the neutral wire conductive sleeve ring; therefore, when the neutral wire contact and the neutral wire conductive sleeve ring are disengaged, the ground wire conductive sleeve The ring also remains in contact with the ground contact.

As a further preference of the present invention: the contact range of the ground wire conductive collar and the ground wire contact is greater than the contact range of the live wire contact and the live wire reset contact ring; therefore, when the live wire contact and the live wire reset contact ring are out of contact , the ground wire conductive collar is still in contact with the ground wire contact.

Compared with the prior art, after adopting the above-mentioned technical scheme, it has the following beneficial effects:

1. Quick fit, no need to align, just insert and use; no need to distinguish between ground wire, live wire and neutral wire.

2. It has a high level of waterproof and anti-electric shock; as long as the water does not diffuse into the anti-electric shock components, the water penetrates into the circuit cavity, and the use of the plug-in socket and the anti-electric shock components will not cause electric shock.

3. After the cartridge inserter and the anti-shock assembly are successfully matched, even if the socket is completely soaked in water, as long as the airtightness of the anti-shock assembly and its direct air tightness with the fixed bottom column are well done, and the circuit cavity does not enter water, the cartridge can be inserted An independent airtight space will also be formed between the device and the baffle plate, so there is no need to worry about the entry of water; its normal use can still be guaranteed.

Fourth, it can be used in combination with the existing national standard plugs.

Description of drawings

FIG. 1 is a perspective view of an embodiment of the present invention.

FIG. 2 is a front view of an embodiment of the present invention.

FIG. 3 is a cross-sectional view at A-A of the embodiment of the present invention.

FIG. 4 is a perspective view of FIG. 3 of the present invention.

FIG. 5 is a partial enlarged view of the position R of FIG. 4 of the present invention.

FIG. 6 is a top view of an embodiment of the present invention.

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 6 of the present invention.

FIG. 8 is a perspective view of FIG. 7 of the present invention.

FIG. 9 is a partial enlarged view of the part D of FIG. 8 of the present invention.

Figure 10 is an exploded view of the cartridge inserter and socket of the present invention.

FIG. 11 is a perspective exploded view of the main body of the plug board of the present invention.

FIG. 12 is a partial enlarged view of the position H of FIG. 11 of the present invention.

13 is a perspective view of the anti-electric shock assembly of the present invention.

14 is a perspective view of the cover assembly of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings.

Example:

As shown in Figures 1 to 14, a convertible cartridge plug-in board includes a plug-in board main body 1, a cylindrical plug-in 2, a socket 3, an electric shock-proof sleeve 4, an external plug 6 and a wire tube 5; it is characterized in that : The main body 1 of the plug board is also provided with a blocking plate 10 and a bottom plate 14; the blocking board 10 divides the main body 1 of the plug board into a use cavity 11 and a circuit cavity 12, and the blocking board 10 is also provided with one or more The bottom column 15 is fixed; the anti-electric shock sleeve 4 is composed of a bottom sleeve 48, a live wire reset contact ring 47, a reset spring 46, an insulating isolation plate 45, a live wire conductive fixing plate 44 and a cover assembly 49; the bottom sleeve 48 There is a fixed inner ring platform 482 and a limit inner ring platform 481 inside; the fixed bottom column 15 is provided with a fixed outer boss 152 and a limit outer boss 151; the bottom sleeve 48 is sleeved on the fixed bottom column 15, a movable inner ring cavity 72 is formed between the fixed inner ring platform 482 and the fixed outer boss 152, and a live wire inner ring cavity 71 is formed between the limit outer boss 151 and the limit inner ring platform 481; The live wire reset contact ring 47, the reset spring 46, and the insulating isolation plate 45 are sequentially installed into the movable inner ring cavity 72. The live wire reset contact ring 47 is partially located in the live wire inner ring cavity 71, and the live wire conductive fixing plate 44 passes through the clamp. It is fixed outside the movable inner ring cavity 72 by means of buckle or screw fitting; the reset spring 46 is specifically located between the live wire reset contact ring 47 and the insulating isolation plate 45; the insulating isolation plate 45 is provided with a live wire through hole 451; The live wire conductive fixing plate 44 is further provided with an extended contact boss 442 and a live wire connection fixing seat 441, and the extended contact boss 442 penetrates through the live wire through hole 451;

The cover assembly 49 is composed of a cover sleeve 40, a neutral wire conductive collar 41, an insulating isolation collar 42 and a ground wire conductive collar 43; the cover sleeve 40 is provided with a neutral wire guide groove 401 and a ground wire guide. Slot 402; the neutral wire conductive collar 41 is provided with a neutral wire connection fixing base 411; the ground wire conductive collar 43 is provided with a ground wire connection fixing base 431; the neutral wire conductive collar 41 is insulated and isolated The collar 42 and the ground wire conductive collar 43 are sequentially sleeved on the cover sleeve 40, and the insulating isolation collar 42 is specifically located between the neutral wire conductive collar 41 and the ground wire conductive collar 43; the neutral wire is connected to The fixing base 411 is sleeved in the neutral wire guide groove 401; the ground wire connecting fixing base 431 is sleeved into the ground wire guide groove 402;

The cover assembly 49 is fixed in the bottom sleeve 48 by means of snap and screw fit;

An insulating elastic sleeve 23 is provided on the surface of the cartridge inserter 2, and two or more clamping portions 21 are arranged in the insulating elastic sleeve 23. The clamping portions 21 are sequentially provided with zero line contacts from top to bottom. head 213, ground contact 212 and live contact 211;

The socket 3 is composed of two socket covers 31 and a collar 32; the surface of the socket 2 is also provided with a national standard plug interface 22; the external plug 6 first passes through the collar 32, and is connected with the national standard interface. The plugs 22 are matched with each other, then the two socket covers 31 wrap the external plug 6, and finally the collar 32 is fixed to the outer ring portion of the combined socket cover 31 by means of threads or snaps.

In order to prevent water accumulation in the use cavity, keep the use cavity dry, and avoid excessive water accumulation and hidden dangers affecting actual use, the bottom of the use cavity 11 is provided with one or more drain holes 111 .

As a preference of the present invention: the electric wire tube 5 is composed of a live wire 51, a neutral wire 52 and a ground wire 53; one end of the live wire 51 is fixed in the live wire connection fixing seat 441; one end of the neutral wire 52 is fixed on the neutral wire Connect the fixing base 411 ; one end of the ground wire 53 is fixed to the ground wire connecting fixing base 431 .

As a preferred embodiment of the present invention, the socket cover 31 is provided with a circuit half opening 311, and both the socket cover 31 and the circuit half opening 311 are also provided with a sealing ring.

As a preferred option of the present invention: the plug-in board main body 1 is further provided with a use cavity sealing plate 13; the use cavity sealing plate 13 is provided with openings in the same number as the anti-shock components 4, and the diameter of the openings is larger than that of the cylinder The diameter of the plug 2; the use cavity sealing plate 13 is used to reduce the exposed area of the use cavity 11 .

As a preferred option of the present invention, the main body 1 of the plug-in board is further provided with a circuit sealing board 14 ; the circuit sealing board 14 is used to close the circuit cavity 12 .

In order to achieve high-level waterproof and anti-electric shock, the length of the insulating elastic sleeve 23 is longer than the sum of the distance between the anti-electric shock assembly 4 and the blocking plate 10, the squeezing rebound distance and the error distance of the live wire reset contact ring 47; Before the live wire contact 211 of the part 21 is completely separated from the live wire reset contact ring 47, the insulating elastic sleeve 23 is still in a close fit with the blocking plate 10; the liquid and gas inside and outside the insulating elastic sleeve 23 are blocked by the insulating elastic sleeve 23. , can not flow; and when the live wire contact 211 is completely separated from the live wire reset contact ring 47, the moving distance of its continuous movement needs to be greater than the error distance, the insulating elastic sleeve 23 will be separated from the blocking plate 10, so that the insulating elastic sleeve is separated. The liquid inside and outside 23 recirculates; the insulating elastic sleeve 23 has been sealed with the blocking plate 10 before the live wire contact 211 contacts the live wire reset contact ring 47; and after the live wire contact 211 contacts the live wire reset contact ring 47, then After the pressing external force disappears, the insulating elastic sleeve 23 will release the excess elastic force, so that the live wire contact 211 squeezes the live wire reset contact ring 47, so that the live wire reset contact ring 47 and the extended contact boss 442 come into contact; at this time, The live wire circuit is on.

In order to further increase the safety, the ground wire is the last to be disconnected, so even if an accident occurs when the live wire is disconnected, the ground wire can be ensured to provide safety protection. The outer height of the ground wire conductive collar 43 is higher than the neutral wire. The conductive collar 41; therefore, when the neutral contact 213 and the neutral conductive collar 41 are disengaged, the ground conductive collar 43 also remains in contact with the ground contact 212; the ground conductive collar 43 The contact range with the ground contact 212 is larger than the contact range between the live contact 211 and the live reset contact ring 47; therefore, when the live contact 211 and the live reset contact ring 47 are out of contact, the ground conductive collar 43 also remains. Keep in contact with the ground contact 212.

Instructions:

When in use: the socket 2 is sleeved with the anti-electric shock sleeve 4, so that the neutral contact 213, the ground contact 212 and the live contact 211 are respectively connected with the neutral conductive collar 41 and the ground conductive collar 43 and the live wire reset contact ring 47 cooperate with each other, and at the same time, a conflicting elastic force is generated between the insulating elastic sleeve 23 and the blocking plate 10, and the insulating elastic sleeve 23 moves back together with the clamping portion 21, so that the live wire contact 211 starts to squeeze the live wire. The contact ring 47 is reset to overcome the elastic force of the internal reset spring 46 and come into contact with the extended contact boss 422, thereby conducting electricity; and in this state, the elastic force generated between the insulating elastic sleeve 23 and the blocking plate 10 has declined, The remaining force is still greater than the elastic force of the return spring 46, but the clamping portion 21 cannot be separated from the anti-shock set 4; a balance of force is formed to ensure normal power-on;

When not in use: Continue to pull the plug-in plug 2 out to break the originally formed force balance, so that the clamping portion 21 is separated from the anti-shock sleeve 4 .

In the description of the present invention, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", " The orientation or positional relationship indicated by vertical, horizontal, top, bottom, inner, outer, etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and The description is simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

The above are the preferred embodiments of the present invention. For those of ordinary skill in the art, several modifications and improvements can be made without departing from the principles of the present invention, which should also be regarded as the protection scope of the present invention.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments are to be regarded in all respects as illustrative and not restrictive, and the scope of the invention is to be defined by the appended claims rather than the foregoing description, which are therefore intended to fall within the scope of the claims. All changes within the meaning and scope of the equivalents of , are included in the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (10)

1. A convertible cartridge plug-in board, comprising a plug-in board main body (1), a cylindrical plug (2), a socket (3), an electric shock protection sleeve (4), an external plug (6) and a wire tube ( 5); characterized in that: the main body (1) of the plug board is further provided with a blocking plate (10) and a bottom plate (14); the blocking board (10) divides the main body (1) of the plug board into use chambers ( 11) and the circuit cavity (12), the blocking plate (10) is further provided with one or more fixed bottom posts (15); (47), return spring (46), insulating isolation plate (45), live wire conductive fixing plate (44) and cover assembly (49); the bottom sleeve (48) is provided with a fixed inner ring platform (482) and a limit inner ring platform (481); the fixed bottom column (15) is provided with a fixed outer boss (152) and a limit outer boss (151); the bottom sleeve (48) is sleeved on the fixed On the bottom column (15), a movable inner ring cavity (72) is formed between the fixed inner ring platform (482) and the fixed outer boss (152), and the limit outer boss (151) and the limit inner ring A live wire inner ring cavity (71) is formed between the platforms (481); the live wire reset contact ring (47), the reset spring (46), the insulating isolation plate (45) are sequentially loaded into the movable inner ring cavity (72), The live wire reset contact ring (47) is partially located in the live wire inner ring cavity (71), and the live wire conductive fixing plate (44) is fixed outside the movable inner ring cavity (72) by means of snap-fit or screw fit; the The reset spring (46) is specifically located between the live wire reset contact ring (47) and the insulating isolation plate (45); the insulating isolation plate (45) is provided with a live wire through hole (451); the live wire conductive fixing plate (44) ) is also provided with an extended contact boss (442) and a live wire connection fixing seat (441), the extended contact boss (442) passing through the live wire through hole (451); The covering assembly (49) is composed of a covering sleeve (40), a neutral wire conductive sleeve (41), an insulating isolation sleeve (42) and a ground wire conductive sleeve (43); the covering sleeve (40) A neutral wire guide groove (401) and a ground wire guide groove (402) are provided thereon; the neutral wire conductive sleeve ring (41) is provided with a neutral wire connection fixing seat (411); the ground wire conductive sleeve ring (43) ) is provided with a ground wire connection fixing seat (431); the neutral wire conductive collar (41), the insulating isolation collar (42) and the ground wire conductive collar (43) are sequentially sleeved on the cover sleeve (40) Above, the insulating isolation collar (42) is specifically located between the neutral wire conductive collar (41) and the ground wire conductive collar (43); the neutral wire connection fixing seat (411) is sleeved on the neutral wire guide groove (401); the ground wire connection fixing base (431) is sleeved on the ground wire guide groove (402); The cover assembly (49) is fixed in the bottom sleeve (48) by means of snap-fit and thread fit; An insulating elastic sleeve (23) is provided on the surface of the cartridge inserter (2), and two or more clamping portions (21) are provided in the insulating elastic sleeve (23), and the clamping portions (21) A neutral contact (213), a ground contact (212) and a live contact (211) are arranged in sequence from top to bottom; The socket (3) is composed of two socket covers (31) and a collar (32); the surface of the socket (2) is further provided with a national standard plug interface (22); the external plug ( 6) First pass through the ferrule (32) to mate with the national standard interface plug (22), then the two socket covers (31) wrap the external plug (6), and finally the ferrule (32) is threaded or snapped. is fixed to the outer ring portion of the assembled socket cover (31). 2 . The convertible cartridge plug-in board according to claim 1 , characterized in that: the bottom of the use cavity ( 11 ) is provided with one or more drain holes ( 111 ). 3 . 3. A switchable cartridge plug-in board according to claim 1, characterized in that: the electric wire tube (5) is composed of a live wire (51), a neutral wire (52) and a ground wire (53); the One end of the live wire (51) is fixed in the live wire connecting holder (441); one end of the neutral wire (52) is fixed on the neutral wire connecting holder (411); one end of the ground wire (53) is fixed on the ground wire Attach Mount (431). 4. A switchable cartridge plug-in board according to claim 1, characterized in that: the socket cover (31) is provided with a circuit half opening (311), the socket cover (31) and the circuit The half openings (311) are also provided with sealing rings. 5. A switchable cartridge plug-in board according to claim 1, characterized in that: the plug-in board main body (1) is further provided with a use cavity sealing plate (13); the use cavity sealing board (13) ) is provided with openings in the same number as the anti-shock components (4), and the diameter of the openings is larger than the diameter of the barrel inserter (2); the use cavity sealing plate (13) is used to reduce the use cavity (11) exposed area. 6. A switchable cartridge plug-in board according to claim 1, characterized in that: the plug-in board main body (1) is further provided with a circuit sealing board (14); the circuit sealing board (14) is used for in the closed circuit cavity (12). 7. A switchable cartridge plug-in board according to claims 1 to 6, characterized in that: the length of the insulating elastic sleeve (23) is longer than the distance between the anti-electric shock assembly (4) and the barrier plate (10) , the sum of the squeezing and rebounding distance and the error distance of the live wire reset contact ring (47); ensure that the insulating elastic sleeve is fully insulated before the live wire contact (211) of the clamping part (21) is completely separated from the live wire reset contact ring (47). (23) It is still closely matched with the blocking plate (10); the liquid and gas inside and outside the insulating elastic sleeve (23) are blocked by the insulating elastic sleeve (23) and cannot flow; and when the live wire contact (211) After it is completely separated from the live wire reset contact ring (47), the moving distance of its continuous movement needs to be greater than the error distance, and the insulating elastic sleeve (23) will be separated from the blocking plate (10), so that the insulating elastic sleeve (23) is inside and outside. fluid recirculation. 8 . The switchable cartridge plug-in board according to claim 7 , wherein the insulating elastic sleeve ( 23 ) has been contacted with the live wire contact ( 211 ) before the live wire contact ( 211 ) contacts the live wire reset contact ring ( 47 ). 9 . The blocking plate (10) is sealed; and when the live wire contact (211) contacts the live wire reset contact ring (47), after the pressing force disappears, the insulating elastic sleeve (23) will release the excess elastic force, so that the live wire touches the contact ring (47). The head (211) squeezes the live wire reset contact ring (47), so that the live wire reset contact ring (47) and the extended contact boss (442) come into contact; at this time, the live wire circuit is connected. 9. A switchable cartridge plug-in board according to claim 8, characterized in that: the outer height of the ground wire conductive collar (43) is higher than that of the neutral wire conductive collar (41); Therefore, when the neutral wire contact (213) and the neutral wire conductive collar (41) are disengaged, the ground wire conductive collar (43) also remains in contact with the ground wire contact (212). 10. A switchable cartridge plug-in board according to claim 8, characterized in that: the contact range between the ground wire conductive collar (43) and the ground wire contact (212) is larger than that of the live wire contact (211) ) and the contact range of the live wire reset contact ring (47); therefore, when the live wire contact (211) and the live wire reset contact ring (47) are out of contact, the ground wire conductive collar (43) is still in contact with the ground wire contact (43). 212) Keep in touch.

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