Sealing door, guide rail and track socket

Abstract

The utility model provides a sealing door, a guide rail and a track socket, and belongs to the technical field of electronics. The sealing door comprises a base, an overturning piece and a torsional spring. The overturning piece comprises a door body, a shaft sleeve and a rotating shaft, the door body is connected with the shaft sleeve, the rotating shaft is sleeved with the shaft sleeve, and the rotating shaft is rotatably inserted into the base; the shaft sleeve is sleeved with the torsion spring, and the torsion spring is compressed between the base and the door body. A limiting structure is arranged between the base and the shaft sleeve and used for limiting the overturning angle of the door body relative to the base. According to the invention, the assembly difficulty can be effectively reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] This disclosure belongs to the field of electronic technology, and specifically relates to a closed door, a guide rail, and a track socket. Background Technology

[0002] A track socket is a new type of socket, which mainly consists of a rail and an adapter. The adapter can be selectively plugged into the appropriate position in the socket of the rail.

[0003] In related technologies, the guide rail includes a housing and a sealing door, which is installed inside the housing and is used to close or open the socket on the housing.

[0004] However, the process of assembling the closed door into the housing is challenging due to the door's inherent mobility, which hinders assembly efficiency. Utility Model Content

[0005] This disclosure provides a closed door, a guide rail, and a track socket, which can effectively reduce assembly difficulty and improve assembly efficiency. The technical solution is as follows:

[0006] In a first aspect, embodiments of this disclosure provide a closed door, including a base, a flipping element, and a torsion spring;

[0007] The flipping component includes a door body, a bushing, and a rotating shaft. The door body is connected to the bushing, the bushing is sleeved on the rotating shaft, and the rotating shaft is rotatably inserted into the base.

[0008] The torsion spring is sleeved outside the bushing, and the torsion spring is compressed between the base and the door body;

[0009] A limiting structure is provided between the base and the bushing, which is used to limit the rotation angle of the door body relative to the base.

[0010] In one implementation of this disclosure, an outer wall of the base is a mounting reference surface, which is perpendicular to the plane where the door's flipping trajectory is located;

[0011] Under the limiting structure, the door can rotate between a first position and a second position on the base. When the door is in the first position, there is a first flip angle between the door and the mounting reference surface, which is not greater than 90°. When the door is in the second position, there is a second flip angle between the door and the mounting reference surface, which is less than the first flip angle.

[0012] In another implementation of this disclosure, the limiting structure includes a first limiting groove and a limiting protrusion;

[0013] One of the first limiting groove and the limiting protrusion is located on the outer wall of the bushing, and the other of the first limiting groove and the limiting protrusion is located on the base;

[0014] When the limiting protrusion abuts against the groove wall of the first limiting groove, the door body is located in the first position or the second position.

[0015] In another implementation of this disclosure, the extending direction of the first limiting groove is consistent with the rotation direction of the bushing. When the limiting protrusion abuts against the first end of the extending direction of the first limiting groove, the door body is located in the first position. When the limiting protrusion abuts against the second end of the extending direction of the first limiting groove, the door body is located in the second position.

[0016] In another implementation of this disclosure, the first limiting groove is located on the outer wall of the bushing, and the first limiting groove extends circumferentially along the bushing.

[0017] The base includes a shaft bracket and a mounting bracket. The shaft bracket is connected to one side of the mounting bracket. One end of the limiting protrusion is connected to the mounting bracket, and the other end of the limiting protrusion is located in the first limiting groove. The rotating shaft is inserted into the shaft bracket.

[0018] In another implementation of this disclosure, one side of the mounting bracket corresponding to the bushing is a concave surface, at least part of the bushing is located within the concave surface, the concave surface has an accommodating opening, the limiting protrusion is located within the accommodating opening, and one end of the limiting protrusion is connected to the inner sidewall of the accommodating opening.

[0019] In another implementation of this disclosure, under the limiting structure, the door body can rotate between the first position and the third position of the base. When the door body is in the third position, there is a third flip angle between the door body and the mounting reference surface, and the third flip angle is greater than 90°.

[0020] In another implementation of this disclosure, the limiting structure further includes a second limiting groove;

[0021] The second limiting groove and the first limiting groove are located together on the outer wall of the bushing or the base;

[0022] When the limiting protrusion abuts against the groove wall of the second limiting groove, the bushing is located in the third position.

[0023] In another implementation of this disclosure, the extension direction of the second limiting groove is consistent with the extension direction of the first limiting groove and is located on the same plane. When the limiting protrusion abuts against the end of the second limiting groove away from the first limiting groove, the bushing is located in the third position. The end of the second limiting groove near the first limiting groove has a transition slope, and the transition slope extends toward the first limiting groove.

[0024] Secondly, embodiments of this disclosure provide a guide rail, including a housing and the enclosed door described in the first aspect;

[0025] The shell wall of the housing has an insertion hole, and the inner wall of the housing has a mounting slide rail, the length direction of the mounting slide rail being consistent with the length direction of the insertion hole;

[0026] The sealing door is installed within the mounting rail to close or open the socket.

[0027] Thirdly, embodiments of this disclosure provide a track socket, including an adapter and the guide rail described in the second aspect;

[0028] The adapter is plugged into the socket on the guide rail.

[0029] The beneficial effects of the technical solutions provided in this disclosure are:

[0030] The closed door provided in this embodiment can be applied to the guide rail of a track socket. The closed door includes a base, a flipping component, and a torsion spring. The base supports the flipping component and serves to assemble the closed door into the guide rail. The flipping component includes a door body, a bushing, and a pivot. The pivot is rotatably inserted into the base, and the door body is mounted on the pivot via the bushing, allowing the door body to flip relative to the base. The torsion spring is compressed between the base and the door body, and its elasticity drives the door body to flip relative to the base. Because there is a limiting structure between the base and the bushing, the flipping angle of the door body relative to the base can be limited. Therefore, during the assembly of the closed door into the guide rail, the flipping angle of the door body relative to the base can be limited to a suitable angle, thus facilitating the assembly of the closed door and the guide rail.

[0031] In other words, the closed door provided in this embodiment of the present disclosure uses its own limiting structure to limit the rotation angle of the door body relative to the base to a suitable rotation angle, thereby temporarily restricting the mobility of the closed door itself, thereby reducing the assembly difficulty between the closed door and the guide rail and improving the assembly efficiency. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of the guide rail provided in an embodiment of this disclosure;

[0034] Figure 2 This is a schematic diagram of the closed door within the guide rail provided in an embodiment of this disclosure;

[0035] Figure 3 This is a schematic diagram of the structure of a closed door provided in an embodiment of this disclosure;

[0036] Figure 4 This is a partial cross-sectional view of a closed door provided in an embodiment of this disclosure;

[0037] Figure 5 This is a schematic diagram of the position of the door provided in an embodiment of this disclosure.

[0038] The symbols in the diagram represent the following meanings:

[0039] 10. Base;

[0040] 10a. Mounting reference surface; 10b. Concave surface; 110. Shaft bracket; 120. Mounting bracket; 130. Accommodation opening;

[0041] 20. Flip-over parts;

[0042] 210, door body; 210a, plane; 220, bushing; 230, pivot;

[0043] 30. Torsion spring;

[0044] 40. Limiting structure;

[0045] 410. First limiting groove; 420. Limiting protrusion; 430. Second limiting groove; 440. Transition slope;

[0046] a) First flip angle; b) Second flip angle; c) Third flip angle;

[0047] 1. Shell;

[0048] 11. Socket; 12. Mounting rail;

[0049] 2. Close the door.

[0050] The accompanying drawings have illustrated specific embodiments of this disclosure, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this disclosure to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0051] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0052] This disclosure provides a track socket, which includes an adapter and a guide rail, with the adapter plugged into a socket on the guide rail.

[0053] In the above implementation, the guide rail is mounted on a carrier (wall, cabinet, etc.) and connected to the indoor electrical circuit. The adapter can be selectively plugged into the appropriate position in the socket of the guide rail, so that the adapter is electrically connected to the guide rail for accepting the plug of the electrical appliance.

[0054] It is worth noting that multiple adapters can be plugged into the guide rail, and the number of adapters can be selected according to actual needs; this disclosure does not limit this.

[0055] Figure 1 See the schematic diagram of the guide rail structure. Figure 1 In this embodiment, the guide rail includes a housing 1 and a sealing door 2. The housing 1 has an insertion hole 11 on its wall and a mounting rail 12 on its inner wall. The length direction of the mounting rail 12 is aligned with the length direction of the insertion hole 11. The sealing door 2 is installed inside the mounting rail 12 to close or open the insertion hole 11 (see...). Figure 2 (The upper side is in a closed state, and the lower side is in an open state).

[0056] In the above implementation, the housing 1 is the main structure of the guide rail, and it is equipped with structural components such as conductive copper busbars. The mounting rail 12 is located on the inner wall of the housing 1 and is used to support the sealing door 2. The sealing door 2 is assembled into the housing 1 via the mounting rail 12 and is used to close or open the socket 11. When the track socket is idle, the sealing door 2 closes the socket 11, thereby preventing debris from entering the guide rail and improving electrical safety. When an adapter needs to be plugged in, the sealing door 2 opens, allowing the conductive structure of the adapter to pass through the socket 11 and contact the conductive copper busbar inside the housing 1 to receive power.

[0057] In this embodiment, the housing 1 is an integral structural component, which can improve manufacturing efficiency and reduce manufacturing costs.

[0058] However, compared to the split-type housing 1 in related technologies, the integrated housing 1 requires the sealing door 2 to be inserted from the end opening of the housing 1 when assembling the sealing door 2. Since the end opening of the housing 1 is smaller, the outer contour of the sealing door 2 is larger than the end opening of the housing 1, which makes the assembly of the sealing door 2 difficult.

[0059] To address this problem, embodiments of this disclosure provide a closed door. Figure 3 This is a structural diagram of the closed door, combined with... Figure 3 In this embodiment, the closed door includes a base 10, a flipping element 20, and a torsion spring 30.

[0060] The flipping component 20 includes a door body 210, a bushing 220, and a rotating shaft 230. The door body 210 is connected to the bushing 220, and the bushing 220 is sleeved on the outside of the rotating shaft 230, which is rotatably inserted into the base 10. A torsion spring 30 is sleeved on the outside of the bushing 220 and compressed between the base 10 and the door body 210. A limiting structure 40 is provided between the base 10 and the bushing 220 to limit the flipping angle of the door body 210 relative to the base 10.

[0061] The closed door provided in this embodiment can be applied to the guide rail of a track socket. The closed door includes a base 10, a flipping component 20, and a torsion spring 30. The base 10 supports the flipping component 20 and serves to assemble the closed door into the guide rail. The flipping component 20 includes a door body 210, a bushing 220, and a rotating shaft 230. The rotating shaft 230 is rotatably inserted into the base 10, and the door body 210 is mounted on the rotating shaft 230 via the bushing 220, allowing the door body 210 to flip relative to the base 10. Figure 3 (The solid arrow in the middle illustrates the flipping trajectory). The torsion spring 30 is compressed between the base 10 and the door body 210. Through its own elasticity, it can drive the door body 210 to flip relative to the base 10. Since there is a limiting structure 40 between the base 10 and the bushing 220, the flipping angle of the door body 210 relative to the base 10 can be limited. Therefore, during the process of assembling the closed door into the guide rail, the flipping angle of the door body 210 relative to the base 10 can be limited to a suitable flipping angle, thereby facilitating the assembly between the closed door and the guide rail.

[0062] In other words, the closed door provided in this embodiment of the present disclosure uses its own limiting structure 40 to limit the rotation angle of the door body 210 relative to the base 10 to a suitable rotation angle, thereby temporarily restricting the mobility of the closed door itself, thereby reducing the assembly difficulty between the closed door and the guide rail and improving the assembly efficiency.

[0063] See also Figure 3In this embodiment, an outer wall of the base 10 is a mounting reference surface 10a. The mounting reference surface 10a is perpendicular to the plane 210a where the door body 210 flips. The flipping trajectory of the door body 210 is circular, and the circle is coaxial with the rotating shaft 230. That is to say, the plane 210a where the door body 210 flips is located is perpendicular to both the mounting reference surface 10a and the rotating shaft 230.

[0064] After the closed door is installed in place within the mounting rail 12, the mounting reference surface 10a is parallel to the inner wall of the housing 1 where the mounting rail 12 is located. When the closed door is in the closed state, the included angle between the door body 210 and the mounting reference surface 10a is 90°, and when the closed door is in the open state, the included angle between the door body 210 and the mounting reference surface 10a is less than 90°.

[0065] Therefore, when the door is closed, it can be inserted into the mounting rail 12 through the end opening of the housing 1, that is, when the angle between the door body 210 and the mounting reference surface 10a is 90°. When the angle between the door body 210 and the mounting reference surface 10a decreases, the outer contour dimension of the closed door will decrease accordingly, and it can still be inserted into the mounting rail 12 through the end opening of the housing 1. Conversely, when the angle between the door body 210 and the mounting reference surface 10a increases, the outer contour dimension of the closed door will increase accordingly, making it difficult to insert into the mounting rail 12 through the end opening of the housing 1.

[0066] Based on this, in this embodiment, under the limiting structure 40, the door 210 can be in the first position of the base 10 ( Figure 2 (upper side) and second position ( Figure 2 The door 210 rotates between the lower side and the mounting reference surface 10a. When the door 210 is in the first position, there is a first flip angle a between the door 210 and the mounting reference surface 10a. The first flip angle a is not greater than 90°. When the door 210 is in the second position, there is a second flip angle b between the door 210 and the mounting reference surface 10a. The second flip angle b is less than the first flip angle a.

[0067] As mentioned above, the door 210 is able to be in the first and second positions through the limiting structure 40. The limiting structure 40 will be introduced below.

[0068] Figure 4 This is a partial sectional view of a closed door, combined with... Figure 4 In this embodiment, the limiting structure 40 includes a first limiting groove 410 and a limiting protrusion 420. One of the first limiting groove 410 and the limiting protrusion 420 is located on the outer wall of the bushing 220, and the other of the first limiting groove 410 and the limiting protrusion 420 is located on the base 10. When the limiting protrusion 420 abuts against the groove wall of the first limiting groove 410, the door 210 is in the first position (see...). Figure 4 (left side) or second position (see left side) Figure 4 (Right side)

[0069] In the above implementation, the limiting structure 40 includes a first limiting groove 410 and a limiting protrusion 420 that cooperate with each other. The limiting protrusion 420 is located within the first limiting groove, and the limiting function is achieved by the abutment between the limiting protrusion 420 and the groove wall of the first limiting groove. It is easy to understand that since the first limiting groove 410 and the limiting protrusion 420 are located on the bushing 220 and the base 10 respectively, limiting the position between the first limiting groove 410 and the limiting protrusion 420 is equivalent to limiting the position between the bushing 220 and the base 10, that is, the door body 210 is located at the position of the base 10.

[0070] See also Figure 4 In this embodiment, the extension direction of the first limiting groove 410 is consistent with the rotation direction of the bushing 220. When the limiting protrusion 420 abuts against the first end of the extension direction of the first limiting groove 410, the door body 210 is located in the first position. When the limiting protrusion 420 abuts against the second end of the extension direction of the first limiting groove 410, the door body 210 is located in the second position.

[0071] In the above implementation, the limiting protrusion 420 can move along the extension direction of the first limiting groove 410, and the extension length of the first limiting groove 410 is the maximum stroke of the limiting protrusion 420 within the first limiting groove 410. By adjusting the extension length of the first limiting groove 410, the included angle range between the door body 210 and the mounting reference surface 10a can be adjusted.

[0072] As can be seen from the preceding text, the first limiting groove 410 can be located on either the outer wall of the bushing 220 or the base 10. If the first limiting groove 410 is located on the outer wall of the bushing 220, then the limiting protrusion 420 is located on the base 10. If the first limiting groove 410 is located on the base 10, then the limiting protrusion 420 is located on the outer wall of the bushing 220.

[0073] See also Figure 4 In this embodiment, the first limiting groove 410 is located on the outer wall of the bushing 220 and extends circumferentially along the bushing 220. The base 10 includes a shaft bracket 110 and a mounting bracket 120. The shaft bracket 110 is connected to one side of the mounting bracket 120. One end of the limiting protrusion 420 is connected to the mounting bracket 120, and the other end of the limiting protrusion 420 is located in the first limiting groove 410. The rotating shaft 230 is inserted into the shaft bracket 110.

[0074] In the above implementation, the base 10 includes a shaft bracket 110 and a mounting bracket 120. The shaft bracket 110 is the mounting base for the rotating shaft 230, and the mounting bracket 120 is used to realize the assembly between the base 10 and the mounting slide rail 12.

[0075] In other embodiments, the positions of the first limiting groove 410 and the limiting protrusion 420 may also be interchanged, and this disclosure does not limit this.

[0076] In this embodiment, the shaft bracket 110 and the mounting bracket 120 are integrated structural components, which can effectively improve the manufacturing efficiency of the base 10 and reduce the manufacturing cost.

[0077] See also Figure 4 In this embodiment, one side of the mounting bracket 120 is a concave surface 10b corresponding to the bushing 220. The bushing 220 is at least partially located within the concave surface 10b. The concave surface 10b has an accommodating opening 130. A limiting protrusion 420 is located within the accommodating opening 130. One end of the limiting protrusion 420 is connected to the inner sidewall of the accommodating opening 130.

[0078] In the above implementation, since part of the bushing 220 is located within the concave surface 10b, the bushing 220 can be closer to the limiting protrusion 420 within the accommodating opening 130, so that the limiting protrusion 420 can be inserted into the first limiting groove 410 on the bushing 220. Furthermore, the concave surface 10b also avoids interference between the mounting bracket 120 and the bushing 220, effectively improving reliability.

[0079] For example, the bushing 220 is a cylindrical structural component, the inner contour of the concave surface 10b is an arc surface, and the axis of the bushing 220 and the axis of the concave surface 10b are coaxial.

[0080] As can be seen from the preceding text, under the limiting structure 40, the door 210 can be in the first position of the base 10 (see...). Figure 5 (middle) and second position (see Figure 5 The door 210 can rotate between the lower side and the lower side. In this embodiment, in addition to being limited by the limiting structure 40, the door 210 can also rotate between the first position and the third position of the base 10 (see the lower side). Figure 5 Rotate between the upper side and the upper side.

[0081] In this embodiment, when the door 210 is in the third position, there is a third flip angle c between the door 210 and the mounting reference surface 10a, and the third flip angle c is greater than 90°.

[0082] In the above implementation, when the door 210 is in the third position, the third rotation angle c between the door 210 and the mounting reference surface 10a is relatively large, allowing the door 210 to unfold relative to the base 10. This facilitates the installation of the torsion spring 30, thereby reducing the assembly difficulty of the closed door and improving its assembly efficiency.

[0083] See you again Figure 4 In this embodiment, the limiting structure 40 also includes a second limiting groove 430. The second limiting groove 430 and the first limiting groove 410 are located together on the outer wall of the bushing 220 or the base 10. When the limiting protrusion 420 abuts against the groove wall of the second limiting groove 430, the bushing 220 is in the third position.

[0084] In the above implementation, the limiting structure 40 includes a second limiting groove 430 and a limiting protrusion 420 that cooperate with each other. The limiting protrusion 420 can be located within the second limiting groove. The limiting function is achieved by the abutment between the limiting protrusion 420 and the groove wall of the second limiting groove. It is easy to understand that since the second limiting groove 430 and the limiting protrusion 420 are located on the bushing 220 and the base 10 respectively, limiting the position between the second limiting groove 430 and the limiting protrusion 420 is equivalent to limiting the position between the bushing 220 and the base 10, that is, the door body 210 is located at the position of the base 10.

[0085] It is worth noting that since the second limiting groove 430 and the first limiting groove 410 are both located on the outer wall of the bushing 220 or the base 10, that is, the second limiting groove 430 and the first limiting groove 410 are located in the same position, the limiting protrusion 420 can cooperate with both the first limiting groove 410 and the second limiting groove 430. Of course, when the limiting protrusion 420 cooperates with the second limiting groove 430, the limiting protrusion 420 is located within the second limiting groove 430. When the limiting protrusion 420 needs to cooperate with the first limiting groove 410, the limiting protrusion 420 moves from the second limiting groove 430 to the first limiting groove 410.

[0086] To facilitate the movement of the limiting protrusion 420 from the second limiting groove 430 to the first limiting groove 410, in this embodiment, the extension direction of the second limiting groove 430 is consistent with the extension direction of the first limiting groove 410 and is located on the same plane. When the limiting protrusion 420 abuts against the end of the second limiting groove 430 away from the first limiting groove 410, the bushing 220 is located in the third position. The end of the second limiting groove 430 near the first limiting groove 410 has a transition slope 440, which extends toward the first limiting groove 410.

[0087] It is worth noting that the limiting protrusion 420 should first be located in the second groove to facilitate the assembly of the torsion spring 30. After the torsion spring 30 is assembled, the flipping part 20 is turned so that the limiting protrusion 420 moves to the first limiting groove 410 via the transition ramp 440 in preparation for assembling the closed door into the guide rail.

[0088] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” “third,” and similar terms used in this patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an” or “a” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising” or “including” and similar terms mean that the elements or objects preceding “comprising” or “including” encompass the elements or objects listed following “comprising” or “including” and their equivalents, and do not exclude other elements or objects. The terms “connected” or “linked” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The terms “upper,” “lower,” “left,” “right,” etc., are used only to indicate relative positional relationships; when the absolute position of the described objects changes, the relative positional relationship may also change accordingly.

[0089] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A closure door, characterized in that Includes a base (10), a flipping component (20), and a torsion spring (30); The flipping component (20) includes a door body (210), a bushing (220), and a rotating shaft (230). The door body (210) is connected to the bushing (220). The bushing (220) is sleeved on the outside of the rotating shaft (230). The rotating shaft (230) is rotatably inserted into the base (10). The torsion spring (30) is sleeved outside the bushing (220), and the torsion spring (30) is compressed between the base (10) and the door body (210); A limiting structure (40) is provided between the base (10) and the bushing (220), the limiting structure (40) being used to limit the rotation angle of the door body (210) relative to the base (10).

2. The closure door according to claim 1, characterized in that One outer wall of the base (10) is an installation reference surface (10a), which is perpendicular to the plane (210a) where the flipping trajectory of the door (210) is located; Under the limiting structure (40), the door body (210) can rotate between the first position and the second position of the base (10). When the door (210) is in the first position, there is a first flip angle (a) between the door (210) and the mounting reference surface (10a), and the first flip angle (a) is not greater than 90°. When the door (210) is in the second position, there is a second flip angle (b) between the door (210) and the mounting reference surface (10a), and the second flip angle (b) is smaller than the first flip angle (a).

3. The closure door of claim 2, wherein The limiting structure (40) includes a first limiting groove (410) and a limiting protrusion (420); One of the first limiting groove (410) and the limiting protrusion (420) is located on the outer wall of the bushing (220), and the other of the first limiting groove (410) and the limiting protrusion (420) is located on the base (10); When the limiting protrusion (420) abuts against the groove wall of the first limiting groove (410), the door body (210) is located in the first position or the second position.

4. The closure door of claim 3, wherein The extension direction of the first limiting groove (410) is consistent with the rotation direction of the bushing (220). When the limiting protrusion (420) abuts against the first end of the extension direction of the first limiting groove (410), the door body (210) is located in the first position. When the limiting protrusion (420) abuts against the second end of the extension direction of the first limiting groove (410), the door body (210) is located in the second position.

5. The closure door of claim 3, wherein The first limiting groove (410) is located on the outer wall of the bushing (220), and the first limiting groove (410) extends circumferentially along the bushing (220); The base (10) includes a shaft bracket (110) and a mounting bracket (120). The shaft bracket (110) is connected to one side of the mounting bracket (120). One end of the limiting protrusion (420) is connected to the mounting bracket (120), and the other end of the limiting protrusion (420) is located in the first limiting groove (410). The rotating shaft (230) is inserted into the shaft bracket (110).

6. The closure door of claim 5, wherein One side of the mounting bracket (120) corresponding to the bushing (220) is a concave surface (10b). The bushing (220) is at least partially located within the concave surface (10b). The concave surface (10b) has a receiving opening (130). The limiting protrusion (420) is located within the receiving opening (130). One end of the limiting protrusion (420) is connected to the inner sidewall of the receiving opening (130).

7. The closure door of claim 3, wherein Under the limitation of the limiting structure (40), the door body (210) can rotate between the first position and the third position of the base (10). When the door body (210) is in the third position, there is a third flip angle (c) between the door body (210) and the mounting reference surface (10a), and the third flip angle (c) is greater than 90°.

8. The closure door according to claim 7, characterized in that The limiting structure (40) also includes a second limiting groove (430); The second limiting groove (430) and the first limiting groove (410) are located together on the outer wall of the bushing (220) or the base (10); When the limiting protrusion (420) abuts against the groove wall of the second limiting groove (430), the bushing (220) is located in the third position.

9. The closure door of claim 8, wherein The extension direction of the second limiting groove (430) is consistent with the extension direction of the first limiting groove (410) and is located on the same plane. When the limiting protrusion (420) abuts against the end of the second limiting groove (430) away from the first limiting groove (410), the bushing (220) is located in the third position. The end of the second limiting groove (430) near the first limiting groove (410) has a transition slope (440), and the transition slope (440) extends toward the first limiting groove (410).

10. A guide rail characterized by Includes a housing (1) and a closed door as described in any one of claims 1 to 9; The shell wall of the housing (1) has an insertion hole (11), and the inner wall of the housing (1) has a mounting slide rail (12), the length direction of the mounting slide rail (12) is consistent with the length direction of the insertion hole (11); The closing door is installed in the mounting rail (12) to close or open the socket (11).

11. A track socket, characterized in that Includes the adapter and the guide rail as described in claim 10; The adapter is plugged into the socket (11) of the guide rail.

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