Dustproof door assembly, power supply track and track socket

Abstract

The utility model discloses a dustproof door assembly, a power track and a track socket, a plurality of first dustproof doors and a plurality of second dustproof doors are slidably arranged on a dustproof door support, and the first dustproof doors and the second dustproof doors are alternately arranged along a track insertion port and are driven by an elastic piece to seal the track insertion port; first linkage structures are arranged on the two sides of the first dustproof door, second linkage structures are arranged on the two sides of the second dustproof door, and the second dustproof door is in one-way linkage with the first dustproof door through the second linkage structures and the first linkage structures in the backward stroke, that is, when the first dustproof door slides back to the side away from a track insertion opening, the second dustproof door is in one-way linkage with the first dustproof door. The adjacent second dustproof door is driven to slide together to be away from the track insertion opening, and when the second dustproof door slides to be away from the track insertion opening, the second dustproof door cannot be linked with the adjacent first dustproof door, and the first dustproof door is kept at the original position.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and in particular to a dustproof door component, a power rail and a rail socket. Background Art

[0002] As the quality of life improves, people need to use more and more types of electrical appliances, so the demand for the number of wall sockets is also increasing. The number of ordinary wall sockets is often not enough, and if too many wall sockets are installed, it will affect the appearance. Therefore, track sockets came into being. The track socket includes an adapter and a long track. The track is installed on the wall, and the track socket in the track is electrically connected to the wall power supply line. The adapter has a conductive sheet and a socket. When using the track socket, the conductive sheet of the adapter is inserted into the track slot of the track and contacts the track socket in the track slot. Then the plug of the electrical appliance is inserted into the socket of the adapter, and the electrical appliance can draw power from the adapter. The advantage of the track socket is that the adapter can be moved arbitrarily within a range by sliding the adapter in the track, so that the adapter can power electrical appliances in multiple locations.

[0003] However, the housing of the power rail has a rail opening for inserting the adapter, and dust can easily enter the interior of the power rail through the rail opening, causing wear to the internal conductive plate, thereby reducing the service life of the power rail. Utility Model Content

[0004] The utility model aims to overcome the defects of the prior art and provide a dustproof door assembly, a power rail and a rail socket.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A dustproof door assembly comprises: a plurality of first dustproof doors, a dustproof door bracket and an elastic member, the dustproof door bracket being at least arranged on one side of a track insertion opening, and also comprising a plurality of second dustproof doors, the plurality of first dustproof doors and the plurality of second dustproof doors being slidably arranged on the dustproof door bracket, the first dustproof doors and the second dustproof doors being alternately arranged along the track insertion opening, and the track insertion opening being closed under the driving of the elastic member; a first linkage structure is arranged on both sides of the first dustproof door, and a second linkage structure is arranged on both sides of the second dustproof door, the second dustproof door is unidirectionally linked with the first dustproof door in a retreat stroke through the second linkage structure and the first linkage structure, that is, when the first dustproof door slides back to a side away from the track insertion opening, it drives the adjacent second dustproof door to slide away from the track insertion opening together, and when the second dustproof door slides away from the track insertion opening, the second dustproof door will not link with the adjacent first dustproof door, and the first dustproof door remains in its original position.

[0007] Optionally, a driving end of each of the first dustproof doors corresponding to the track insertion opening is provided with an insertion-direction driving inclined surface, and both sides of the driving end of each first dustproof door are also provided with sliding-direction driving inclined surfaces, respectively.

[0008] Optionally, the driving end of each of the second dustproof doors is also provided with a second insertion driving inclined surface.

[0009] Optionally, the elastic member is arranged between the rear end of the second dustproof door and the dustproof door bracket; when the second dustproof door slides to close the track insertion opening, it drives the adjacent first dustproof door to slide together to close the track insertion opening.

[0010] Optionally, the elastic member is provided between the tail ends of the first dustproof door and the second dustproof door and the dustproof door bracket.

[0011] Optionally, the first linkage structure is a first linkage surface arranged on both sides of the first dustproof door, and the second linkage structure is a second linkage surface arranged on both sides of the second dustproof door, and the first linkage surface is arranged opposite to the second linkage surface.

[0012] Optionally, the two sides of the first dustproof door are V-shaped surfaces, the first linkage surface is arranged perpendicular to the V-shaped surfaces on both sides of the first dustproof door, the two sides of the second dustproof door are also V-shaped surfaces, the second linkage surface is arranged perpendicular to the V-shaped surfaces on both sides of the second dustproof door, and the V-shaped surfaces on both sides of the first dustproof door are in fit and contact with the V-shaped surfaces on both sides of the second dustproof door.

[0013] Optionally, when the first dustproof door and the second dustproof door are driven by the elastic member to close the rail insertion opening, a gap is set between the first linkage surface and the second linkage surface.

[0014] Optionally, the dustproof door bracket is provided with a plurality of first bracket units and a plurality of second bracket units, each first dustproof door is separately provided in a first bracket unit for sliding, and each second dustproof door is separately provided in a second bracket unit for sliding.

[0015] Optionally, the first bracket unit is provided with a first sliding surface and a first limiting boss for sliding the first dustproof door, and the bottom of the first dustproof door is provided with a first sliding portion corresponding to the first sliding surface, and a first limiting sliding groove corresponding to the first limiting boss;

[0016] The second bracket unit is provided with a second sliding surface and a second limiting boss for sliding the second dustproof door, and the bottom of the second dustproof door is provided with a second sliding portion corresponding to the second sliding surface and a second limiting sliding groove corresponding to the second limiting boss.

[0017] Optionally, a first limiting surface is provided at the end of the first limiting slide groove corresponding to the driving end of the dustproof door, and forms a mutual limit with the end of the first limiting boss to limit the retreat stroke of the first dustproof door;

[0018] The end of the second limiting sliding groove corresponding to the driving end of the second dustproof door is provided with a second limiting surface, which forms a mutual limit with the end of the second limiting boss to limit the retreat stroke of the second dustproof door.

[0019] Optionally, the first bracket unit is provided with a first limiting pressing plate arranged opposite to the first sliding surface, a third limiting sliding groove is provided on the first limiting pressing plate, and a third limiting protrusion corresponding to the third limiting sliding groove is provided on the upper part of the first dustproof door;

[0020] The second bracket unit is provided with a second limiting pressure plate arranged opposite to the second sliding surface, the second limiting pressure plate is provided with a fourth limiting sliding groove, and the upper part of the second dustproof door is provided with a fourth limiting protrusion corresponding to the fourth limiting sliding groove.

[0021] Optionally, the elastic member is a columnar spring, a limiting boss is provided at the rear end of the second dustproof door, a limiting hole is provided at the second bracket unit, one end of the columnar spring is sleeved on the limiting boss, and the other end is embedded in the limiting hole.

[0022] Optionally, dustproof door brackets are provided on both sides of the track insertion opening, and a plurality of dustproof doors are symmetrically arranged on the dustproof door brackets on both sides, and the dustproof doors on both sides jointly close the track insertion opening.

[0023] The utility model also provides a power rail, comprising: a rail body and a rail outer frame, the rail outer frame is provided with a cavity, the rail body is arranged in the cavity, and any of the above-mentioned dustproof door components is also arranged on the rail body.

[0024] The utility model also provides a track socket, comprising: an adapter and the power track, wherein the adapter and the power track are pluggable and connected.

[0025] The utility model is used for a dustproof door assembly of a track socket, and the first dustproof door and the second dustproof door are alternately arranged along the track insertion port, the first dustproof door is provided with a first linkage structure on both sides, and the second dustproof door is provided with a second linkage structure on both sides, and the second dustproof door is unidirectionally linked with the first dustproof door in a retreat stroke through the second linkage structure and the first linkage structure, so that when the first dustproof door slides backward, it will drive the second dustproof door to slide together, splitting a space sufficient for the adapter to be inserted and initially slide, and the adjacent first dustproof door will not be affected by the linkage of the second dustproof door and will remain in a closed state, thereby effectively protecting the cleanliness of the inside of the track socket.

[0026] As a further improvement, each of the first dustproof doors is provided with an insertion-direction driving inclined surface at the driving end corresponding to the track insertion port, and each of the first dustproof door driving ends is also provided with sliding-direction driving inclined surfaces on both sides. When the adapter is inserted, it contacts the driving inclined surface, and when continuous downward pressure is applied to the driving inclined surface, the dustproof door slides back to the side away from the track insertion port, splitting a space for the adapter to continue to be inserted. When the adapter needs to slide laterally, the adapter's pin contacts the sliding-direction driving inclined surface and exerts continuous pressure thereon. Under the action of continuous pressure, the first dustproof door slides back to the side away from the track insertion port, splitting a space for the adapter to continue to slide. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of the track socket of the embodiment of the utility model;

[0028] Figure 2 It is a schematic diagram of the cross-sectional structure of the power rail of the first embodiment of the utility model;

[0029] Figure 3 This is a schematic structural diagram of a track frame of the first embodiment of the utility model;

[0030] Figure 4 This is a schematic diagram of the dustproof door arrangement of the first embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the cross-sectional structure of the power rail of the second embodiment of the utility model;

[0032] Figure 6 This is a schematic structural diagram of a dustproof door assembly of a second embodiment of the utility model;

[0033] Figure 7 This is a schematic diagram of the structure of the dustproof door assembly of the second embodiment of the utility model;

[0034] Figure 8 This is a schematic structural diagram of a dustproof door assembly of the second embodiment of the utility model (from another perspective);

[0035] Fig. 9 yes Figure 8 AA section view;

[0036] Fig.10 This is a schematic diagram of the structure of the first dustproof door of the second embodiment of the utility model;

[0037] Fig.11 This is a schematic structural diagram of the first dustproof door of the second embodiment of the utility model (from another perspective);

[0038] Fig.12 This is a schematic diagram of the structure of the second dustproof door of the second embodiment of the utility model;

[0039] Fig.13 This is a schematic diagram of the structure of the second dustproof door of the second embodiment of the utility model (from another perspective);

[0040] Fig.14 This is a schematic diagram of the structure of the dustproof door bracket of the embodiment of the utility model;

[0041] Fig.15 It is a schematic diagram of the state of the dustproof door of the embodiment of the utility model when being driven by the adapter.

[0042] In the figure:

[0043] The dustproof door bracket 1, the first bracket unit 10a, the second bracket unit 10b, the limiting hole 11, the fourth limiting slide groove 12, the second limiting boss 13, the third limiting slide groove 14, the first limiting boss 15, the first sliding surface 16, the second sliding surface 17, the first limiting pressure plate 18, and the second limiting pressure plate 19;

[0044] The second dustproof door 2, the second insertion driving inclined surface 21, the fourth limiting protrusion 22, the second linkage surface 24 (the second linkage structure 24), the second limiting sliding groove 25, the second sliding part 26, and the limiting protrusion 27;

[0045] The first dustproof door 3, the sliding driving inclined surface 31, the third limiting protrusion 32, the insertion driving inclined surface 33, the first linkage surface 34 (the first linkage structure 34), the first limiting sliding groove 35, the first limiting surface 351, and the first sliding portion 36;

[0046] Elastic member 4;

[0047] Track frame 5, cavity 51;

[0048] Track body 7, track insertion opening 71;

[0049] Adapter 9. DETAILED DESCRIPTION

[0050] The following embodiments are combined with the accompanying drawings to further illustrate the specific implementation of the dustproof door assembly of the present utility model. The dustproof door assembly of the present utility model is not limited to the description of the following embodiments.

[0051] like Figure 1 The figure shows a track socket provided by this embodiment, which includes a power track and an adapter 9, and the adapter 9 is pluggable and connected to the power track.

[0052] like Figure 2 and Figure 3As shown, the power track of this embodiment includes a track outer frame 4, a track body 7 and a dustproof door assembly, the track outer frame 4 is provided with a cavity 41, the track body 7 and the dustproof door assembly are arranged in the cavity 41, wherein the track body 7 generally includes an insulating bracket and an electrode conductive sheet arranged in the insulating bracket, so as to achieve a conductive connection with the adapter 9 and achieve insulation with the track outer frame 4 (usually the track outer frame is a hardware profile, of course, the track outer frame can also be an insulating material).

[0053] In this embodiment, the adapters 9 can be arranged on the power rail by increasing or decreasing the number thereof, and can slide in the area of ​​the power rail having the electrode conductive sheet.

[0054] like Figure 2 As shown, the power rail includes two rail bodies 7 and the two rail bodies 7 are arranged relatively in the cavity 41 to form a rail insertion opening 71, and an opening is also provided at a corresponding position of the rail outer frame 4 to facilitate the insertion of the adapter 9. The dustproof door assembly of this embodiment is mainly used to protect the rail insertion opening 71. When no adapter 9 is inserted, the rail insertion opening 71 is always kept closed. When the adapter 9 is inserted, only the dustproof door at the corresponding position of the adapter 9 is opened.

[0055] like Figure 2-4 The dustproof door assembly provided in the present embodiment is shown, and the dustproof door assembly is arranged at the upper end of the track body 7, and comprises: a plurality of first dustproof doors 3, a dustproof door bracket 1 and an elastic member 4; the dustproof door bracket 1 is arranged at least on one side of the track insertion opening 71, and the plurality of first dustproof doors 3 are slidably arranged on the dustproof door bracket 1 through the elastic member 4, and the plurality of first dustproof doors 3 are arranged in an array along the track insertion opening 71, and the track insertion opening 71 is closed under the drive of the elastic member 4; an insertion-direction driving inclined surface 33 is provided at the driving end of each first dustproof door 3 corresponding to the track insertion opening 71, and sliding-direction driving inclined surfaces 31 are also provided on both sides of the driving end of each first dustproof door 3, respectively, when the adapter 9 is inserted, it contacts the driving inclined surface 33, and when the continuous downward pressure acts on the driving inclined surface 33, the dustproof door 3 slides back to the side away from the track insertion opening 71, and cracks the space for the adapter 9 to continue to be inserted. When the adapter 9 needs to slide laterally, the pins of the adapter 9 contact the sliding driving inclined surface 31 and exert continuous pressure thereon. Under the action of the continuous pressure, the first dustproof door 3 slides back to the side away from the track insertion opening 71, creating space for the adapter 9 to continue sliding.

[0056] As a further improvement, in this embodiment, second dustproof doors 2 are respectively provided on both sides of the first dustproof door 3, first linkage structures 34 are provided on both sides of the first dustproof door 3, second linkage structures 24 are provided on both sides of the second dustproof door 2, and the second dustproof door 2 is unidirectionally linked with the first dustproof door 3 in the retreat stroke through the second linkage structure 24 and the first linkage structure 34. The unidirectional linkage described in this embodiment means that when the first dustproof door 3 slides back to the side away from the track insertion port 71 driven by the adapter 9, it can drive the adjacent second dustproof door 2 to slide away from the track insertion port 71 together, and if the adapter 9 directly drives the second dustproof door 2 to slide away from the track insertion port 71, the second dustproof door 2 will not be linked with the adjacent first dustproof door 3, and the first dustproof door 3 will remain in its original position. The second dustproof door 2 is also provided with an elastic member 4, and the second dustproof door 2 closes the track insertion opening 71 under the drive of the corresponding elastic member 4. The driving end of the second dustproof door 2 is also provided with a second insertion driving inclined surface 21, and the adapter 9 can drive the second dustproof door 2 to slide in the retreat direction through the second insertion driving inclined surface 21.

[0057] Due to the existence of the sliding driving inclined surface 31, the gap between two adjacent first dustproof doors 3 will be enlarged. By providing the second dustproof door 2, the gap can be filled to avoid the adapter 9 being stuck when inserted due to the excessive gap.

[0058] Preferably, in this embodiment, the role of the elastic member 4 is to restore the position of the first dustproof door 3 and the second dustproof door 2 so that they maintain the closed state to the track insertion opening 71. Therefore, the first dustproof door 3 and the second dustproof door 2 can both be provided with an elastic member 4 to achieve the return position, that is, the elastic member 4 is provided between the tail ends of the first dustproof door 3 and the second dustproof door 2 and the dustproof door bracket 1. However, since the first dustproof door 3 can be unidirectionally linked to the second dustproof door 2, the forward stroke of the second dustproof door 2 (i.e., the stroke to restore the closed state) can also act on the first dustproof door 3, that is, the second dustproof door can be unidirectionally linked in the forward stroke, and when the second dustproof door 2 slides to close the track insertion opening 71, it drives the adjacent first dustproof door 3 to slide together to close the track insertion opening 71. Therefore, in this embodiment, it is only necessary to set an elastic member 4 at the rear end of the second dustproof door 2. The elastic member 4 is set between the dustproof door bracket 1 and the rear end of the second dustproof door 2. The restoring force of the elastic member 4 of the second dustproof door 2 can be used to drive the first dustproof door 3 to restore its position, and the first dustproof door 3 does not need to be provided with an elastic member 4.

[0059] In this embodiment, if Figure 5-13As shown, the first linkage structure 34 is a first linkage surface 34 arranged on both sides of the first dustproof door 3, and the second linkage structure 24 is a second linkage surface 24 arranged on both sides of the second dustproof door 2, and the first linkage surface 34 is arranged opposite to the second linkage surface 24. In this embodiment, the bottom of both sides of the first dustproof door 3 is provided with a notch to form a first step, and the side wall of the first step forms the first linkage surface 34, and the top of both sides of the second dustproof door 2 is provided with a notch to form a second step, and the side wall of the second step forms the second linkage surface 24, and the two sides of the first dustproof door 3 are partially overlapped on the second dustproof door 2, so that the first linkage surface 34 and the second linkage surface 24 are arranged opposite to each other in the retreat stroke. As other embodiments, the two sides of the first dustproof door 3 can also extend a convex column as the first linkage structure 34, and the two sides of the second dustproof door 2 are provided with a second step, and the side wall of the second step serves as the second linkage structure 24, and the convex column pushes the side wall of the second step to perform a one-way linkage in the retreat stroke. In addition, protruding columns can be extended from both sides of the second dustproof door 2 as the second linkage structure 24, and notches are provided on both sides of the first dustproof door 3 to form a first step. The side walls of the first step form a first linkage structure 34. When the first dustproof door 3 slides back to the side away from the rail insertion opening 71, the side walls of the first step push the protruding columns of the second dustproof door 2 to perform a one-way linkage in the retreat stroke.

[0060] In the assembled state, that is, when the first dustproof door 3 and the second dustproof door 2 close the track insertion opening 71 driven by the elastic member 4, the first linkage surface 34 and the second linkage surface 24 can be in a contact state or a gap setting state. In the contact state, the retreat sliding distance of the first dustproof door 3 is the same as the retreat sliding distance of the second dustproof door 2. In the gap state, the retreat sliding distance of the second dustproof door 2 will be reduced, thereby reducing the opening range of the track insertion opening 71.

[0061] like Figure 6-15 As shown, the first dustproof door 3 and the second dustproof door 2 are alternately arranged along the track insertion opening 71. When the first dustproof door 3 serves as the main body driven by the adapter 9, the first linkage surface 34 is arranged opposite to the second linkage surfaces 24 of the second dustproof doors 2 on the adjacent two sides. The first dustproof door 3 is driven by the adapter 9 to slide in the retreat direction (i.e., away from the track insertion opening), driving the second dustproof door 2 to slide in the retreat direction as well. When the second dustproof door 2 slides forward to the track insertion opening 71 under the action of the elastic member 4, the first linkage surface 34 (i.e., the first dustproof door 3) will be driven to slide in the forward direction to the initial position through the second linkage surface 24.

[0062] When the second dustproof door 2 is driven by the adapter 9 , the second linkage surface 24 does not drive the first linkage surface 34 , that is, does not drive the first dustproof door 3 to slide.

[0063] In this embodiment, if Figure 7-14The dustproof door bracket 1 is arranged on the track body 7. Optionally, the dustproof door bracket 1 and the insulating bracket of the track body 7 are an integrated structure. Of course, they can also be split structures and assembled through a connecting structure. The dustproof door bracket 1 is provided with a plurality of first bracket units 10a and a plurality of second bracket units 10b. Each first dustproof door 3 is separately arranged in a first bracket unit 10a for sliding, and each second dustproof door 2 is separately arranged in a second bracket unit 10b for sliding.

[0064] In this embodiment, the first bracket unit 10a is provided with a first sliding surface 16 and a first limiting boss 15 for sliding of the first dustproof door 3, and the bottom of the first dustproof door 3 is provided with a first sliding portion 36 corresponding to the first sliding surface 16, and a first limiting groove 35 opposite to the first limiting boss 15; the second bracket unit 10b is provided with a second sliding surface 17 and a second limiting boss 13 for sliding of the second dustproof door 2, and the bottom of the second dustproof door 2 is provided with a second sliding portion 26 corresponding to the second sliding surface 17, and a second limiting groove 25 opposite to the second limiting boss 13.

[0065] In this embodiment, the end portion of the first limiting slide groove 35 corresponding to the driving end of the dustproof door 3 is provided with a first limiting surface 351, which forms a mutual limit with the end portion of the first limiting boss 15 to limit the retreat stroke of the first dustproof door 3; the end portion of the second limiting slide groove 25 corresponding to the driving end of the second dustproof door 2 is provided with a second limiting surface 251, which forms a mutual limit with the end portion of the second limiting boss 13 to limit the retreat stroke of the second dustproof door 2.

[0066] In this embodiment, the first bracket unit 10a is provided with a first limiting pressure plate 18 arranged opposite to the first sliding surface 16, the first limiting pressure plate 18 is provided with a third limiting slide groove 14, and the upper part of the first dustproof door 3 is provided with a third limiting protrusion 32 corresponding to the third limiting slide groove 14; the second bracket unit 10b is provided with a second limiting pressure plate 19 arranged opposite to the second sliding surface 17, the second limiting pressure plate 19 is provided with a fourth limiting slide groove 12, and the upper part of the second dustproof door 2 is provided with a fourth limiting protrusion 22 corresponding to the fourth limiting slide groove 12.

[0067] In this embodiment, the elastic member 4 is a columnar spring, a limiting boss 27 is provided at the tail end of the second dustproof door 2, and a limiting hole 11 is provided at the second bracket unit 10b. One end of the columnar spring is sleeved on the limiting boss 27, and the other end is embedded in the limiting hole 11.

[0068] In this embodiment, dustproof door brackets 1 are provided on both sides of the track insertion opening 71, and multiple first dustproof doors 3 and second dustproof doors 2 are symmetrically arranged on the dustproof door brackets 1 on both sides, and the first dustproof doors 3 and second dustproof doors 2 on both sides jointly close the track insertion opening 71.

[0069] Of course, when the width of the rail insertion opening 71 is small, the first dustproof door 3 and the second dustproof door 2 can be set on one side, that is, only the dustproof door bracket 1 needs to be set on one side, which can save material costs and assembly and processing costs. Fig. 9 As shown, it is only necessary to set a corresponding adapter 9 limiting structure on the other side to keep the adapter 9 driving the first dustproof door 3 and the second dustproof door 2 driving inclined surfaces, and the single-sided dustproof door can also achieve the closure of the track insertion port 71.

[0070] like Fig.15 The figure shows the state of each dustproof door when the dustproof door on one side is inserted by the adapter 9. When the adapter 9 is inserted into the track insertion port 71 and drives the first dustproof door 3-1, when the bottom of the adapter 9 rests on the driving inclined surface of the dustproof door 3-1, under the action of external force, the first dustproof door 3-1 slides in the retreat direction, and the first linkage surface 34 drives the second linkage surface 23, causing the adjacent second dustproof door 2-1 to slide in the retreat direction, thereby splitting a space to allow the adapter 9 to be inserted. Due to the action of the adapter 9, the first dustproof door 3-1 in contact with it withdraws from the maximum gap, and at the same time drives the second dustproof door 2-1 to withdraw from the appropriate gap or the maximum gap. When the first dustproof door 3-1 is squeezed out of the maximum gap, it will drive the adjacent second dustproof door 2-1 to move backward appropriately, thereby leaving a certain space for the adapter 9 to slide along both sides in the track. Since the adjacent first dustproof door 3-2 and the second dustproof door 2-1 are one-way linked, the sliding of the second dustproof door 2-1 backward will not drive the first dustproof door 3-2 to move. Therefore, the adjacent first dustproof door 3-2 remains closed, and the retreating first dustproof door 3-1 and the second dustproof door 2-1 are both located at the bottom of the adapter 9, and the adapter 9 will play a temporary dustproof role. When the adapter 9 needs to slide, the adapter 9 contacts the sliding driving inclined surface 31 during the sliding process, and under the continuous force, the adjacent first dustproof door 3-2 will slide in the retreat direction, providing the space required for continuous sliding.

[0071] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on directions or positional relationships shown in the drawings, or directions or positional relationships that are usually placed when in use, and are only for the convenience of description, rather than indicating that the device or element referred to must have a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating relative importance.

[0072] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A dustproof door assembly, comprising: A plurality of first dustproof doors (3), a dustproof door bracket (1) and an elastic member (4), wherein the dustproof door bracket (1) is arranged at least on one side of the track insertion opening (71), and is characterized in that: it also includes a plurality of second dustproof doors (2), the plurality of first dustproof doors (3) and the plurality of second dustproof doors (2) are slidably arranged on the dustproof door bracket (1), the first dustproof doors (3) and the second dustproof doors (2) are alternately arranged along the track insertion opening (71), and the track insertion opening (71) is closed under the drive of the elastic member (4); The first dustproof door (3) is provided with a first linkage structure (34) on both sides, and the second dustproof door (2) is provided with a second linkage structure (24) on both sides. The second dustproof door (2) is unidirectionally linked with the first dustproof door (3) in the retreat stroke through the second linkage structure (24) and the first linkage structure (34), that is, when the first dustproof door (3) slides back to the side away from the track insertion opening (71), it drives the adjacent second dustproof door (2) to slide away from the track insertion opening (71); when the second dustproof door (2) slides away from the track insertion opening (71), the second dustproof door (2) will not be linked with the adjacent first dustproof door (3), and the first dustproof door (3) remains at its original position.

2. The dustproof door assembly according to claim 1, characterized in that: The driving end of each first dustproof door (3) corresponding to the track insertion opening (71) is provided with an insertion driving inclined surface (33), and both sides of the driving end of each first dustproof door (3) are also provided with sliding driving inclined surfaces (31).

3. The dustproof door assembly according to claim 1, characterized in that: The driving end of each of the second dustproof doors (2) is also provided with a second insertion-direction driving inclined surface (21).

4. The dustproof door assembly according to claim 1, characterized in that: The elastic member (4) is arranged between the rear end of the second dustproof door (2) and the dustproof door bracket (1); when the second dustproof door (2) slides to close the track insertion opening (71), it drives the adjacent first dustproof door (3) to slide together to close the track insertion opening (71).

5. The dustproof door assembly according to claim 1, characterized in that: The elastic member (4) is provided between the tail ends of the first dustproof door (3) and the second dustproof door (2) and the dustproof door bracket (1).

6. The dustproof door assembly according to claim 1, characterized in that: The first linkage structure (34) is a first linkage surface arranged on both sides of the first dustproof door (3), and the second linkage structure (24) is a second linkage surface arranged on both sides of the second dustproof door (2), and the first linkage surface and the second linkage surface are arranged opposite to each other.

7. The dustproof door assembly according to claim 6, characterized in that: The first dustproof door (3) has V-shaped surfaces on both sides, and the first linkage surface is arranged perpendicularly to the V-shaped surfaces on both sides of the first dustproof door (3). The second dustproof door (2) also has V-shaped surfaces on both sides, and the second linkage surface is arranged perpendicularly to the V-shaped surfaces on both sides of the second dustproof door (2). The V-shaped surfaces on both sides of the first dustproof door (3) are in fit contact with the V-shaped surfaces on both sides of the second dustproof door (2).

8. The dustproof door assembly according to claim 6, characterized in that: When the first dustproof door (3) and the second dustproof door (2) are driven by the elastic member (4) to close the rail insertion opening (71), a gap is set between the first linkage surface and the second linkage surface.

9. The dustproof door assembly according to claim 1, characterized in that: The dustproof door bracket (1) is provided with a plurality of first bracket units (10a) and a plurality of second bracket units (10b); each first dustproof door (3) is individually arranged in a first bracket unit (10a) for sliding, and each second dustproof door (2) is individually arranged in a second bracket unit (10b) for sliding.

10. The dustproof door assembly according to claim 9, characterized in that: The first bracket unit (10a) is provided with a first sliding surface (16) and a first limiting boss (15) for the first dustproof door (3) to slide, and the bottom of the first dustproof door (3) is provided with a first sliding portion (36) corresponding to the first sliding surface (16) and a first limiting sliding groove (35) corresponding to the first limiting boss (15); The second bracket unit (10b) is provided with a second sliding surface (17) and a second limiting boss (13) for the second dustproof door (2) to slide, and the bottom of the second dustproof door (2) is provided with a second sliding portion (26) corresponding to the second sliding surface (17), and a second limiting sliding groove (25) corresponding to the second limiting boss (13).

11. The dustproof door assembly according to claim 10, characterized in that: The end of the first limiting slide groove (35) corresponding to the driving end of the dustproof door (3) is provided with a first limiting surface (351), which forms a mutual limit with the end of the first limiting boss (15) to limit the retreat stroke of the first dustproof door (3); The second limiting sliding groove (25) is provided with a second limiting surface (251) at the end portion corresponding to the driving end of the second dustproof door (2), and forms a mutual limit with the end portion of the second limiting boss (13) to limit the retreat stroke of the second dustproof door (2).

12. The dustproof door assembly according to claim 11, characterized in that: The first bracket unit (10a) is provided with a first limiting pressure plate (18) arranged opposite to the first sliding surface (16), the first limiting pressure plate (18) is provided with a third limiting sliding groove (14), and the upper part of the first dustproof door (3) is provided with a third limiting protrusion (32) corresponding to the third limiting sliding groove (14); The second bracket unit (10b) is provided with a second limiting pressure plate (19) arranged opposite to the second sliding surface (17), the second limiting pressure plate (19) is provided with a fourth limiting sliding groove (12), and the upper part of the second dustproof door (2) is provided with a fourth limiting protrusion (22) corresponding to the fourth limiting sliding groove (12).

13. The dustproof door assembly according to claim 11, characterized in that: The elastic member (4) is a columnar spring, a limiting convex column (27) is provided at the rear end of the second dustproof door (2), the second bracket unit (10b) is provided with a limiting hole (11), one end of the columnar spring is sleeved on the limiting convex column (27), and the other end is embedded in the limiting hole (11).

14. The dustproof door assembly according to claim 1, characterized in that: Dustproof door brackets (1) are provided on both sides of the track insertion opening (71), and a plurality of dustproof doors (3) are symmetrically arranged on the dustproof door brackets (1) on both sides, and the dustproof doors (3) on both sides jointly close the track insertion opening (71).

15. A power rail comprising: A track body (7) and a track outer frame (5), wherein the track outer frame (5) is provided with a cavity (51), and the track body (7) is arranged in the cavity (51), characterized in that a dustproof door assembly according to any one of claims 1 to 14 is also provided on the track body (7).

16. A track socket, characterized in that: include: An adapter (9) and a power rail as claimed in claim 15, wherein the adapter (9) is pluggably connected to the power rail.

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