CN220934547U - Safety door, power rail and rail socket - Google Patents

Abstract

The application relates to a safety door, an electric power rail and a rail socket, and relates to the technical field of rail sockets, comprising a base, wherein a first limiting structure is arranged on the base; the door plate is in sliding fit with the base, a second limiting structure is arranged, and the base is limited to be separated from the base through limiting fit of the first limiting structure and the second limiting structure; and one end of the reset spring acts on the base, and the other end of the reset spring acts on the door plate to drive the door plate to move along the direction deviating from the base. When the adapter is inserted into the electric power track with the safety door structure, the adapter pushes the door plate to move towards the base, the door plate does not shield the track opening any more, and the adapter is in conductive communication with the electric power track. When the adapter is pulled out of the electric power track, the reset spring moves the door plate to move in a direction away from the base, and the door plate resets to a position for shielding the track opening. This electric power track is through the shielding of emergency exit to the track mouth, can promote the security that the power track used, reaches waterproof dustproof effect to extension power track's life.

Description

Safety door, power rail and rail socket

Technical Field

The application relates to the technical field of track sockets, in particular to a safety door, a power track and a track socket.

Background

The track socket is a novel socket product and mainly comprises a power track and an adapter. The power rail, also called a power rail, is usually installed on a wall, a table, a baseboard, etc. The adapter is installed on the power track, gets electricity from the power track, has offered the jack on the adapter for supply consumer to insert gets electricity. The number of adapters mounted on the power rail can be increased or decreased according to the needs, and the position of the adapters on the power rail can be adjusted at will, so that the adapters are popular in the market.

The power rail shell is provided with a rail opening for the adapter to be inserted, and because the opening of the rail opening is wider, foreign matters such as dust particles easily enter the power rail through the rail opening, the functions of all parts in the power rail are interfered, and the use of the power rail is affected. In the related art, in order to solve the technical problem, the installation rubber strip is embedded in the position of the track opening, and in an initial state, the rubber strip is kept to be plate-shaped to seal the track opening, so that foreign matters entering the electric power track through the track opening are reduced, and the interference of the foreign matters on the electric power track is reduced. When the adapter is inserted into the power rail, the rubber strip is bent and deformed, and the adapter is avoided.

In view of the above-mentioned related art, the inventors found that the rubber strip in the related art is a rubber product, and the rubber is aged and deformed after long-term use, which affects the shielding effect on the rail road junction.

Disclosure of utility model

The application provides a safety door, a power rail and a rail socket, which can solve the problems that the rubber strip for shielding a rail mouth is easy to age, so that the blocking effect on foreign matters is weakened, and the use of the power rail is influenced after the foreign matters enter the power rail in the related art.

In a first aspect, the present application provides a safety door, which adopts the following technical scheme:

A safety door comprises a base, wherein a first limiting structure is arranged on the base; the door plate is in sliding fit with the base and is provided with a second limiting structure, and the base is limited to be separated from the base through limiting fit of the first limiting structure and the second limiting structure; one end of the return spring acts on the base, and the other end of the return spring acts on the door plate to drive the door plate to move along the direction deviating from the base; the base comprises a guide rod, the door plate is provided with a guide groove, the guide rod is relatively and slidably arranged in the guide groove, and the guide direction of the guide rod and the guide groove is along the expansion direction of the reset spring.

Optionally, the guide bar with first limit structure sets up relatively, is formed with between the two and holds the chamber, the door plant slide install in hold the intracavity.

Optionally, the number of the second limiting structures on the door panel is at least one, and at least one second limiting structure is symmetrically arranged about a bisector of the door panel in the moving direction; the number of the first limiting structures is the same as that of the second limiting structures, and the setting positions of the first limiting structures on the base correspond to the setting positions of the second limiting structures on the door plate.

Optionally, the terminal surface of door plant has seted up at least one limit structure groove, first limit structure relative sliding mounting in the limit structure groove.

Optionally, a first spring column is arranged on the base, a second spring column is arranged on the door plate, and two ends of the return spring are respectively sleeved on the first spring column and the second spring column.

Optionally, a spring groove is formed in the end face of the guide rod, and when the door plate slides along the base, the second spring column and the return spring slide in the second spring groove.

Optionally, the end of the door plate far away from the base is provided with a closing plate, and the end of the closing plate is provided with a retraction inclined plane which is convenient for applying force to the door plate to retract the door plate.

Optionally, the base still includes two curb plates, first limit structure fixed mounting is in on the curb plate, the door plant retracts extreme position for the curb plate terminal surface with the closure plate supports and pastes.

Optionally, the base is provided with a protruding clamping strip for facilitating the clamping and installation of the base in the power rail.

Optionally, the number of the base is set to be a plurality of, the same side plate is shared between any two adjacent bases, the number of the door plates and the reset springs are set to be a plurality of, each door plate is slidably mounted on the base, and each spring is arranged between the base and the door plate.

In a second aspect, the present application provides a power track, which adopts the following technical scheme:

A power track comprising a housing and the security door of the first aspect; the outer wall of the shell is provided with a rail mouth, the shell is internally provided with a rail cavity for arranging conductors along the extending direction of the shell, the shell is internally provided with one or two safety door cavities, when the number of the safety door cavities is two, the openings of the two safety door cavities are oppositely arranged, the safety door is arranged in the safety door cavity, and the door plate is arranged at the rail mouth; when the adapter is inserted into the rail mouth, the door plate is retracted into the base of the safety door cavity, and when the adapter is pulled out of the rail mouth, the door plate stretches out to shield the rail mouth under the action of the reset spring.

Optionally, an insulating bracket is arranged in the track cavity, a supporting plate for supporting the door plate is formed on one side, close to the track opening, of the insulating bracket in an overhanging manner, and the supporting plate is matched with the door plate of the safety door on the same side in a supporting manner.

In a third aspect, the present application provides a track socket, which adopts the following technical scheme:

a track receptacle comprising an adapter and the power track of the second aspect, the adapter being removably mounted on the power track.

In summary, the present application includes at least one of the following beneficial technical effects:

Through setting up the emergency exit structure, the door plant of emergency exit shelters from power rail's rail mouth, and when the adapter inserted the power rail that has the emergency exit structure, the adapter applys effort to the door plant, promotes the door plant to base direction motion, and the door plant no longer shelters from rail mouth, and reset spring is compressed this moment, adapter and power rail electrically conductive intercommunication. When the adapter is pulled out of the power rail, the reset spring pushes the door plate to move in a direction away from the base under the elastic action of the reset spring, and the door plate resets to a position for shielding the rail mouth. Furthermore, the power rail can improve the use safety of the power rail through shielding the rail opening by the safety door, and achieve the effects of preventing water and dust and prolonging the service life of the power rail;

Through setting up guide bar and guide way structure, the in-process of the relative base sliding motion of door plant, the guide bar slides in the guide way, and the guide bar is directed the direction of motion of door plant, improves the stability of door plant motion in-process.

Drawings

Fig. 1 is a schematic view showing the structure of a safety door according to embodiment 1 of the present application.

Fig. 2 is a schematic view showing the structure of a guide groove according to embodiment 1 of the present application.

Fig. 3 is a schematic diagram showing the structure of a power rail according to embodiment 2 of the present application.

Fig. 4 is a schematic view showing the internal structure of the power rail according to embodiment 2 of the present application.

Fig. 5 is a schematic diagram showing a structure of a track socket according to embodiment 3 of the present application.

Reference numerals illustrate:

100. A safety door; 1. a base; 15. a side plate; 17. a base substrate; 2. a door panel; 3. a return spring; 4. a first limit structure; 5. a second limit structure; 6. a guide rod; 7. a guide groove; 8. a receiving chamber; 9. a limit structure groove; 10. a first spring post; 11. a second spring post; 12. a spring groove; 13. a closing plate; 14. retracting the inclined plane; 16. clamping strips;

200. A power track; 21. a housing; 22. a rail road junction; 23. a track cavity; 24. a safety door cavity; 25. an insulating support; 26. a bearing plate; 27. an end cap; 28. a positioning plate;

300. An adapter.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the present disclosure more apparent, the following detailed description of the embodiments of the present application will be given with reference to fig. 1 to 5.

The embodiment of the application discloses a safety door, and the safety door 100 structure is particularly applied to a power rail 200 of a rail socket. The track socket is a new type of socket product and mainly comprises a power track 200 and an adapter 300. The power rail 200, also referred to as a power rail, is typically mounted in a wall, table, baseboard, or the like. The adapter 300 is installed on the power rail 200, electricity is taken from the power rail 200, and the adapter 300 is provided with a jack for inserting electric equipment to take electricity.

Referring to fig. 1 and 2, a safety door includes a base 1, a door panel 2, and a return spring 3. The base 1 is used for installing on the electric power track 200, and door plant 2 slides and installs on base 1, and reset spring 3 arranges in between base 1 and the door plant 2, and reset spring 3 flexible direction is the same with the direction of movement of door plant 2 for drive door plant 2 moves along the direction of keeping away from base 1.

When the adapter 300 is inserted into the power rail 200 with the safety door 100 structure, the adapter 300 applies force to the door plate 2 to push the door plate 2 to move towards the base 1, the door plate 2 does not shade the rail mouth 22, the reset spring 3 is compressed, and the adapter 300 is in conductive communication with the power rail 200. When the adapter 300 is pulled out from the power rail 200, the return spring 3 pushes the door panel 2 to move away from the base 1 by its own elastic action, and the door panel 2 returns to a position where it shields the rail mouth 22. Furthermore, the power rail 200 can improve the safety of the power rail and can prevent water and dust and prolong the service life of the power rail by shielding the rail mouth 22 by the safety door 100.

Referring to fig. 1 and 2, a base 1 is a fixing member for integrally mounting a safety door 100 on a power rail 200, and a door panel 2 is slidably provided on the base 1.

The base 1 comprises a base substrate 17 and side plates 15 arranged on the base substrate 17, the overall structure of the base 1 is U-shaped, the number of the side plates 15 of one base 1 is two, and two side plates 15 are respectively and vertically arranged at two ends of the base substrate 17. One end integrated into one piece that door plant 2 was kept away from to base substrate 17 is provided with card strip 16, card strip 16 and base substrate 17 parallel arrangement, and when the emergency exit 100 structure was installed at power track 200 through base 1, card strip 16 and power track 200 joint cooperation realized the fixed mounting of base 1 on power track 200 to realize the fixed mounting of emergency exit 100 structure on power track 200.

Referring to fig. 1 and 2, the end portions of the two side plates 15, which are far away from the base substrate 17, are integrally formed with a first limiting structure 4, and the first limiting structure 4 is a plastic block or a plastic block. In the embodiment of the present application, the number of the first limiting structures 4 is two, the two first limiting structures 4 are respectively disposed on the two side plates 15, and the two first limiting structures 4 extend opposite to each other with the side plates 15 as starting points.

Referring to fig. 1 and 3, the door panel 2 is used for shielding a rail mouth 22, and comprises a base plate of the door panel 2 and a closing plate 13 arranged at the end of the base plate of the door panel 2, which is far away from the base 1, and the whole structure of the door panel is plate-shaped. The end part of the base plate of the door plate 2, which is away from the closing plate 13, is provided with a second limiting structure 5, and the second limiting structure 5 is a plastic block or a plastic block. The number of the second limiting structures 5 is at least one, and the number of the second limiting structures 5 is the same as the number of the first limiting structures 4, in the embodiment of the application, the number of the second limiting structures 5 is two, and the two second limiting structures 5 are in one-to-one corresponding collision and limiting with the two first limiting structures 4 respectively.

In the process of reciprocating the door panel 2 relative to the base 1, the door panel 2 has a movement tendency to be separated from the base 1. When the door plate 2 slides along the base 1, the door plate 2 moves along the direction away from the base 1 until the first limiting structure 4 and the second limiting structure 5 are in conflict, and the first limiting structure 4 and the second limiting structure 5 are matched with each other to limit the limiting movement position of the extending direction of the door plate 2, so that the door plate 2 is prevented from being separated from the base 1. The two second limiting structures 5 are respectively in limiting fit with the two first limiting structures 4, so that the door plate 2 is favorably kept in stress balance, and meanwhile, the limiting effect is kept stable. When the door panel 2 is compressed by the adapter 300 to move in a direction approaching to the base 1, the closing plate 13 abuts against the end parts of the two side plates 15, so that the limit of the retraction limit movement position of the door panel 2 is realized.

Referring to fig. 1 and 2, in order to make it easier for the adapter 300 to press the door panel 2 into the power rail 200, the end portion of the closing plate 13 away from the base 1 is inclined to form the retraction inclined plane 14, an included angle formed between the closing plate 13 and the base plate of the door panel 2 is at least greater than 90 degrees, and the closer the included angle degree is to 90 degrees, the more labor is saved for pushing the power rail 200 by the adapter 300, but at the same time, the more difficult for the adapter 300 to accurately contact with the retraction inclined plane 14 in the process of inserting the power rail 200. During insertion of the adapter 300 into the power rail 200, the adapter 300 applies a tilting force to the closure plate 13 to facilitate driving the closure plate 13 to retract into the base 1.

In general, the base 1 and the door panel 2 are made of insulating plastic or plastic, and compared with rubber materials in the prior art, the plastic and plastic materials have higher rigidity, oxidation resistance and high temperature resistance, are not easy to deform, age and fail due to heating. Further, compared with the sealing strip, the safety door 100 has longer service life and is not easy to age and deform. With a better shielding effect on the track opening 22.

Referring to fig. 1 and 2, the end surfaces of the door panel 2 provided with two first limiting structures 4 are provided with at least one limiting structure groove 9, and the number of the limiting structure grooves 9 is the same as that of the first limiting structures 4. The number of the limit structure grooves 9 is two, the setting direction of the limit structure grooves 9 is along the movement direction of the door plate 2, the two limit structure grooves 9 are respectively positioned at the positions, close to two sides, of the end face of the door plate 2 in the thickness direction, and the two first limit structures 4 are respectively arranged in the two limit structure grooves 9.

Through seting up limit structure groove 9 on door plant 2, the in-process that door plant 2 slided relative base 1, first limit structure 4 slides in limit structure groove 9, through the cooperation between them, limit structure groove 9 plays the guide effect relative first limit structure 4, reduces door plant 2 and rocks in the motion process, improves the stability of door plant 2 motion process.

Referring to fig. 1 and 2, a first spring column 10 is integrally formed at a middle position of a base body of a base 1, a second spring column 11 is arranged at a middle position of a base body of a door plate 2, the first spring column 10 and the second spring column 11 are oppositely arranged, a return spring 3 is arranged between the base 1 and the door plate 2, one end of the return spring 3 is sleeved on the first spring column 10 and is abutted against the base body of the base 1, the other end of the return spring is sleeved on the second spring column 11, and the end of the return spring is abutted against the door plate 2. The first spring column 10 and the second spring column 11 limit the two ends of the return spring 3, so that the extension and retraction movement of the return spring 3 is kept on the same straight line as far as possible, and the return spring 3 is prevented from being collapsed from the structure of the safety door 100 due to compression deformation.

Referring to fig. 1 and 2, the middle part of the base 1 is further integrally formed with a guide rod 6, the guide rod 6 is parallel to the side plate 15, a guide groove 7 is formed in one side of the base plate of the door plate 2, which is away from the limit structure groove 9, the guide groove 7 is formed in the direction along which the door plate 2 moves relative to the base 1, and the guide rod 6 is slidably arranged in the guide groove 7. In the sliding movement process of the door plate 2 relative to the base 1, the guide rod 6 slides in the guide groove 7, the guide rod 6 guides the movement direction of the door plate 2, and the stability of the door plate 2 in the movement process is improved.

The end face of the guide rod 6, which is close to the first spring post 10, is provided with a spring groove 12, and the return spring 3 and the second spring post 11 are arranged in the second spring groove 12. During the movement of the door panel 2 relative to the base 1, the second spring post 11 slides in the spring slot 12. The spring groove 12 plays a guiding role in the movement process of the door plate 2 through the second spring column 11, and on the other hand, the spring groove 12 supports the return spring 3 to prevent the return spring 3 from bending and deforming.

The guide rod 6 and two first limit structures 4 are formed with and hold the chamber 8, and in holding the chamber 8 was arranged in to door plant 2 base plate, guide rod 6 and first limit structures 4 carry out spacingly to door plant 2 from two opposite directions this moment, reduce the risk that door plant 2 takes place to break away from with guide rod 6. Therefore, the limiting effect of the first limiting structure 4 and the second limiting structure 5 realizes limiting the extending limit position of the door plate 2; the limiting action of the side plates 15 and the closing plate 13 realizes the limiting of the retraction limit position of the door plate 2; the two side plates 15 limit the two side directions of the door plate 2, and the first limiting structure 4 and the guide rod 6 limit the two end surface directions of the door plate 2.

Referring to fig. 1 and 2, for the power rail 200, the rail opening 22 is long, so the safety door 100 is also required to be long, and the structure of the base 1, the return spring 3 and the door panel 2 is obviously unfavorable for plugging the rail opening 22. The corresponding safety door 100 comprises a plurality of groups of bases 1, return springs 3 and door plates 2, wherein the bases 1 and the door plates 2 are sequentially arranged along the length direction of the track opening 22. In order to facilitate assembly of the structure of the safety door 100, and to reduce the processing cost and improve the stability of the safety door 100, a plurality of seats 1 are generally integrally injection-molded, and the door panel 2 and the return spring 3 are installed in a plurality of accommodating chambers 8 formed by the seats 1. Considering the structural integrity of the base 1, the two adjacent bases 1 share the same side plate 15, the first limiting structures 4 forming the two adjacent accommodating cavities 8 are mounted on the same side plate 15 in a mutually deviating manner, and at this time, the side plate 15 and the two first limiting structures 4 form a cross shape as a whole. The side plates 15 separate the two door panels 2, and avoid interference of the two adjacent door panels 2 in the moving process.

When the adapter 300 is inserted into the power rail 200, the door 2 initially placed at the insertion position of the adapter 300 is pressed into the power rail 200 by the adapter 300, and the door 2 at the other position remains in a state of shielding the rail mouth 22. When the adapter 300 is pulled out from the power rail 200, the compressed door panel 2 is restored to the re-shielding rail mouth 22 by the elastic action of the restoring spring 3.

The length of the base 1 is selected in relation to the length of the track opening 22 of the power track 200. Typically, the base 1 is the same length as the track opening 22 or slightly longer than the track opening 22. However, for a particularly long power rail 200 with a track crossing 22, a plurality of bases 1 may be spliced side by side to form a new base 1 that is suitable for the length of the track crossing 22.

The implementation principle of the embodiment 1 is as follows: in the initial state, the door panel 2 of the safety door 100 shields the track opening 22 of the power track 200, and serves to close the track opening 22. When the adapter 300 is inserted into the power rail 200 through the rail mouth 22, the adapter 300 pushes the door plate 2 to retract into the power rail 200, the door plate 2 contacts the shielding of the rail mouth 22, and the adapter 300 is in conductive communication with the power rail 200. When the adapter 300 is pulled out of the power rail 200, the door plate 2 is reset to the rail opening 22 under the action of the reset spring 3, the rail opening 22 is shielded again, the influence of foreign matters entering the rail opening 22 on the use of the power rail 200 is prevented, and the service life of the power rail 200 is maintained.

The base 1 and the door plate 2 are made of plastic or plastic. Compared with the rubber materials in the prior art, the plastic or plastic is harder, deformation is not easy to occur, the plugging friction effect of the rubber is avoided in the plugging process of the adapter 300, and a user can plug the adapter 300 into the power rail 200 or plug the adapter 300 out of the power rail 200 by using smaller acting force, so that the smoothness of the plugging of the adapter 300 in the power rail 200 is improved. The safety door 100 made of plastic or plastic is not easy to age and deform, has excellent high-temperature resistant effect, prolongs the service life of the safety door 100 and the track socket applying the safety door 100, and improves the use experience of users.

Example 2

Referring to fig. 3 and 4, a power track 200 includes a housing 21 and a security door as described in embodiment 1.

The housing 21 is integrally made of an aluminum alloy or a metal material, and includes a housing body and end caps 27 fixedly mounted at both ends of the housing 21 body by bolts.

The outer wall of the shell 21 is provided with a rail mouth 22, a rail cavity 23 and a safety door cavity 24 are formed in the shell 21 along the length direction of the shell, the rail cavity 23 and the safety door cavity 24 penetrate through the shell 21 body, and openings at two ends of the rail cavity and the safety door cavity are plugged through end covers 27. The number of the track cavities 23 is two, the openings of the two track cavities 23 are arranged in opposite directions, and the track cavities 23 are communicated with the track ports 22. The number of the safety door cavities 24 is two, the openings of the two safety door cavities 24 are arranged in opposite directions, the safety door cavities 24 are communicated with the track opening 22, and the safety door cavities 24 are arranged on one side of the track cavity 23, which is close to the track opening 22.

The safety door described in embodiment 1 is fastened and fixed in the two safety door cavities 24, and the clamping strips 16 on the base 1 of the safety door 100 are fastened and fixed in the safety door cavities 24, so as to limit the result of the safety door 100 along the width direction of the power rail 200. The two ends of the safety door 100 are abutted with the positioning plates 28, the positioning plates 28 are arranged in the safety door cavity 24, and the ends of the two positioning plates 28, which are far away from the safety door 100, are respectively abutted against the two end covers 27. I.e. the positioning plate 28 functions as: the gap between the cap 27 and the safety door 100 is filled to prevent the safety door 100 structure from being displaced in the safety door cavity 24.

At this time, the two safety doors 100 are oppositely arranged, the door plate 2 of the safety door 100 positioned on the right side stretches and contracts leftwards, and the door plate 2 of the safety door 100 positioned on the left side stretches and contracts rightwards. In the initial state, the door panels 2 of the two safety doors 100 are abutted against each other and placed at the track opening 22, and the two safety doors 100 jointly act to shield the track opening 22 of the power track 200.

Insulating supports 25 are inserted into the two track cavities 23, and two ends of each insulating support are installed in the track cavities 23 in a limiting mode through a structure similar to that of the locating plate 28. The openings of the two insulating brackets 25 are oppositely provided with a bearing plate 26, one side of the insulating bracket 25 close to the rail mouth 22 integrally extends towards the rail mouth 22, the bearing plate 26 is in abutting fit with the door plate 2 in the safety door cavity 24, and the bearing plate 26 bears the door plate 2. When the adapter 300 is inserted into the power rail 200, the adapter 300 can generate an acting force on the door plate 2 along the depth direction of the rail mouth 22, and the bearing plate 26 bears the door plate 2, so that the stress balance of the door plate 2 along the depth direction of the rail mouth 22 is realized, and the door plate 2 is prevented from being crushed.

When the adapter 300 matched with the power rail 200 is inserted into the rail mouth 22, the adapter 300 pushes the door plate 2 to retract towards the direction close to the base 1, namely, the door plate 2 retracts into the safety door cavity 24 to avoid the adapter 300 inserted into the power rail 200, and the reset spring 3 is compressed at the moment. When the adapter 300 is pulled out from the track opening 22, the reset spring 3 drives the door plate 2 to move in a direction deviating from the base 1 by utilizing the elastic action of the reset spring until the first limit structure 4 and the second limit structure 5 are in interference limit, and the door plate 2 is reset to a semi-closed state of the track opening 22. The two opposite door plates 2 are mutually abutted to jointly seal the track opening 22, so that the track opening 22 is fully sealed.

Example 3

Referring to fig. 5, a track receptacle includes at least one adapter 300 and the power track 200 described in embodiment 2.

During actual use of the track jack, a suitable number of adapters 300 may be selected based on the use requirements, comprehensively considering the load power and length of the power track 200.

The power rail 200 is provided with the structure of the safety door 100 described in embodiment 1, and when the adapter 300 is not inserted into the rail mouth 22, the door panel 2 of the safety door 100 shields the rail mouth 22, and functions to close the rail mouth 22. When the adapter 300 is inserted into the power rail 200 through the rail hole 22, the adapter 300 applies a force to the door plate 2, the door plate 2 is pushed into the safety door cavity 24, the door plate 2 does not shield the rail hole 22, the adapter 300 is in contact with a conductive conductor arranged in the rail cavity 23, and the adapter 300 is in conductive communication. When the adapter 300 is pulled out from the track opening 22, the adapter 300 does not apply the acting force of the compression return spring 3 to the door plate 2, the return spring 3 rebounds, the door plate 2 is pushed back to the track opening 22 by the return spring 3, and the track opening 22 is shielded again. The arrangement of the structure of the safety door 100 achieves the effects of water resistance and dust prevention, prolongs the service life of the power rail 200, and improves the safety of the power rail 200.

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (13)

1. A safety door, characterized in that: comprising

The base (1) is provided with a first limiting structure (4);

The door plate (2) is in sliding fit with the base (1) and is provided with a second limiting structure (5), and the base (1) is limited to be separated from the base (1) through limiting fit of the first limiting structure (4) and the second limiting structure (5);

A return spring (3), one end of which acts on the base (1) and the other end of which acts on the door plate (2) to drive the door plate (2) to move in a direction away from the base (1);

The base (1) comprises a guide rod (6), the door plate (2) is provided with a guide groove (7), the guide rod (6) is relatively and slidably arranged in the guide groove (7), and the guide direction of the guide rod (6) and the guide groove (7) is along the telescopic direction of the reset spring (3).

2. The safety door according to claim 1, wherein: the guide rod (6) and the first limiting structure (4) are oppositely arranged, a containing cavity (8) is formed between the guide rod and the first limiting structure, and the door plate (2) is slidably installed in the containing cavity (8).

3. The safety door according to claim 1, wherein: the number of the second limiting structures (5) on the door plate (2) is at least one, and at least one second limiting structure (5) is symmetrically arranged about a bisector of the movement direction of the door plate (2); the number of the first limiting structures (4) is the same as that of the second limiting structures (5), and the setting positions of the first limiting structures (4) on the base (1) correspond to the setting positions of the second limiting structures (5) on the door plate (2).

4. A safety door according to claim 1 or 3, characterized in that: at least one limit structure groove (9) is formed in the end face of the door plate (2), and the first limit structure (4) is relatively and slidably arranged in the limit structure groove (9).

5. The safety door according to claim 1, wherein: the novel door is characterized in that a first spring column (10) is arranged on the base (1), a second spring column (11) is arranged on the door plate (2), and two ends of the return spring (3) are respectively sleeved on the first spring column (10) and the second spring column (11).

6. The security door of claim 5, wherein: the end face of the guide rod (6) is provided with a spring groove (12), and when the door plate (2) moves in a sliding mode along the base (1), the second spring column (11) and the return spring (3) slide in the spring groove (12).

7. The safety door according to claim 1, wherein: the end part of the door plate (2) far away from the base (1) is provided with a closing plate (13), and the end part of the closing plate (13) is provided with a retraction inclined plane (14) which is convenient for applying force to the door plate (2) to retract.

8. The security door of claim 7, wherein: the base (1) further comprises two side plates (15), the first limiting structure (4) is fixedly arranged on the side plates (15), and the retraction limit position of the door plate (2) is that the end face of the side plates (15) is abutted to the sealing plate (13).

9. The safety door according to claim 1, wherein: the base (1) is convexly provided with a clamping strip (16) which is convenient for clamping and installing the base (1) in the power rail (200).

10. The safety door according to claim 8 or 9, characterized in that: the number of the bases (1) is multiple, the same side plate (15) is shared between any two adjacent bases (1), the number of the door plates (2) and the number of the return springs (3) are multiple, each door plate (2) is slidably mounted on the base (1), and each spring is arranged between the base (1) and each door plate (2).

11. An electrical power track, characterized by: the power track (200) comprising a housing (21) and the safety door (100) of any one of claims 1-10;

The outer wall of the shell (21) is provided with a rail mouth (22), the shell (21) is internally provided with a rail cavity (23) for arranging conductors along the extending direction of the shell (21), the shell (21) is internally provided with one or two safety door cavities (24), when the number of the safety door cavities (24) is two, the openings of the two safety door cavities (24) are oppositely arranged, a safety door (100) is arranged in the safety door cavity (24), and the door plate (2) is arranged at the rail mouth (22);

When the adapter (300) is inserted into the track opening (22), the door plate (2) is retracted into the base (1) arranged in the safety door cavity (24), and when the adapter (300) is pulled out of the track opening (22), the door plate (2) stretches out of the track opening (22) under the action of the reset spring (3).

12. The power track of claim 11, wherein: an insulating support (25) is arranged in the track cavity (23), one side, close to the track opening (22), of the insulating support (25) is outwards extended to form a supporting plate (26) for supporting the door plate (2), and the supporting plate (26) is in supporting fit with the door plate (2) of the safety door (100) on the same side.

13. A track socket, characterized in that: comprising an adapter (300) and the power rail (200) of claim 11 or 12, said adapter (300) being detachably mounted on said power rail (200).