Locking device and guide rail equipment

Abstract

The utility model discloses a locking device and guide rail equipment. A base body of the locking device is provided with a rotating shaft center; the moving part is arranged on one side of the base body and used for rotating along the center of the rotating shaft under external acting force. The locking piece is arranged on the side, away from the moving piece, of the base body. The moving part rotates along the center of the rotating shaft and drives the locking part to move relatively, so that the locking part is in a locking state or a loosening state. The locking device can serve as a side cover to be arranged on the side face of the guide rail equipment, locking and loosening of the locking device can be achieved through rotation of the moving part, assistance of other installation tools is not needed, a user can conduct installation operation conveniently, the structure is simple and easy to achieve, the locking efficiency of the locking device can be improved easily, and the labor cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of electrical control technology, and in particular to locking devices and guide rail equipment. Background Art

[0002] Using guide rails is a common installation method for electrical control products. Since electrical control products can move left and right along the guide rails when mounted on them, existing guide rail equipment usually requires a locking device to fix the electrical control products to prevent the electrical control products from moving left and right.

[0003] At present, the existing locking devices usually require screw tools and the like for fastening and installation, and the disassembly and assembly methods are cumbersome, the structure is complex, and the locking efficiency is low. Utility Model Content

[0004] In order to solve the above problems existing in the prior art, the present application provides a locking device and a guide rail device.

[0005] In order to solve the technical problems existing in the prior art, the present application provides a first technical solution: a locking device is provided, the locking device comprising a base, a moving part and a locking part. The base is provided with a rotating shaft center; the moving part is provided on one side of the base, and is used to rotate along the rotating shaft center under an external force; the locking part is provided on a side of the base away from the moving part; wherein the moving part rotates along the rotating shaft center and drives the relative movement of the locking part, so that the locking part is in a locked state or a loose state.

[0006] Optionally, the locking member includes a first locking portion and a second locking portion that are relatively arranged opposite to each other, and when the movable member rotates counterclockwise along the center of the rotating shaft, the first locking portion and the second locking portion are relatively close to each other and lock the guide rail device of the external member to be in the above-mentioned locking state; when the movable member rotates clockwise along the center of the rotating shaft, the first locking portion and the second locking portion are relatively far away from each other and loosen the guide rail device to be in the above-mentioned loosened state.

[0007] Optionally, the movable part includes a toggle part and a positioning part, the positioning part is located on one side of the toggle part, the toggle part is prominently displayed on the positioning part, the toggle part is used to receive the force applied by the user and rotate along the counterclockwise direction, the positioning part is connected to the guide rail device to keep the locking part in the locking state; when the toggle part rotates along the clockwise direction, the positioning part is disengaged from the guide rail device to make the locking part in the loose state.

[0008] Optionally, the positioning portion is provided with a serrated first connecting surface, and the shell of the guide rail device is provided with a second connecting surface, the shape of the second connecting surface corresponds to the first connecting surface, and the toggle portion is rotated along the counterclockwise direction so that the first connecting surface of the positioning portion engages with the second connecting surface, so that the locking member remains in the locking state.

[0009] Optionally, the first connecting surface and the second connecting surface are arc-shaped surfaces, the toggle portion rotates counterclockwise along the center of the rotating shaft and makes the arcs of the first connecting surface correspond to those of the second connecting surface, and the serrations of the first connecting surface and the second connecting surface engage with each other to keep the locking member in the locking state; the toggle portion rotates clockwise along the center of the rotating shaft and makes the serrations of the first connecting surface and the second connecting surface loose, and the first connecting surface is driven by the toggle portion to the outside of the arc of the second connecting surface, so that the locking member is in the loosened state.

[0010] Optionally, the toggle portion is disposed on a side of the positioning portion close to the gravity direction, the toggle portion rotates in the counterclockwise direction under the external force and generates a decomposition force, and the positioning portion is connected to the positioning portion under the action of the decomposition force.

[0011] Optionally, the guide rail device is installed between the first locking portion and the second locking portion through a fixing member, the locking member is in the locking state, and the distance between the first locking portion and the second locking portion is less than the length of the fixing member; the locking member is in the loosened state, and the distance between the first locking portion and the second locking portion is greater than or equal to the length of the fixing member.

[0012] Optionally, the guide rail device includes a guide rail and a control product hung on the guide rail, the locking device is connected to the shell of the control product, the locking piece is in the locking state, the first locking portion and the second locking portion are relatively close to each other and lock the fixing piece, so that the control product is fixed on the guide rail through the locking device; the locking piece is in the loosened state, the locking device is disengaged from the guide rail, and the control product can move along the guide rail.

[0013] Optionally, the base, the moving part and the locking part are integrally arranged.

[0014] In order to solve the technical problems existing in the prior art, the present application provides a second technical solution: providing a guide rail device, comprising a guide rail, a control product and the above locking device. The above control product is installed on the above guide rail and can move along the extension direction of the above guide rail; the above locking device is arranged on one side of the above control product, the above locking device is in a locked state, and the above locking device is used to fix the above control product on the above guide rail so that the above control product does not slide relative to each other.

[0015] Compared with the prior art, the base of the locking device of the present application is provided with a rotation axis center; the moving part is provided on one side of the base, and is used to rotate along the rotation axis center under external force; the locking part is provided on the side of the base away from the moving part; the moving part rotates along the rotation axis center and drives the relative movement of the locking part, so that the locking part is in a locked state or a loosened state. The locking device of the present application can be provided as a side cover on the side of the guide rail device, and the locking device can realize locking and loosening by rotating the moving part, without the assistance of other installation tools, which is convenient for users to perform installation operations, and the structure is simple and easy to implement, which is conducive to improving the locking efficiency of the locking device and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 is a structural schematic diagram of a first embodiment of the locking device provided by the present application in a locked state;

[0018] Figure 2 is a structural schematic diagram of a first embodiment of the locking device provided by the present application in a loosened state;

[0019] Figure 3 is a structural schematic diagram of a second embodiment of the locking device provided by the present application in a locked state;

[0020] Figure 4 is a structural schematic diagram of a second embodiment of the locking device provided by the present application in a loosened state;

[0021] Figure 5 is a structural schematic diagram of a third embodiment of the locking device provided by the present application in a locked state;

[0022] Figure 6 is a structural schematic diagram of a third embodiment of the locking device provided by the present application in a loosened state;

[0023] Figure 7 is a structural schematic diagram of a first embodiment of a guide rail device provided by the present application;

[0024] Figure 8 It is a structural schematic diagram of the second embodiment of the guide rail device provided in this application. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with the accompanying drawings and examples. It is particularly noted that the following examples are only used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application rather than all embodiments, and all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present application.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "set", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or connected through an intermediate medium. For ordinary technicians in this field, if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of this application, the directional indications are only used to explain the relative position relationship, movement, etc. between the components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0028] See also Figure 1 and Figure 2 , Figure 1 is a structural schematic diagram of a first embodiment of the locking device provided by the present application in a locked state, Figure 2 1 is a schematic diagram of the structure of the first embodiment of the locking device provided by the present application in a loose state. Figure 1 and Figure 2As shown, the embodiment of the present application proposes a locking device 10, which can be applied to a guide rail device to limit the left and right movement of the guide rail device in a locked state. The guide rail device can include an electrical control product installed on the guide rail, for example, the electrical control product includes but is not limited to air switches, programmable controllers and other products mounted on a guide rail of a preset size.

[0029] The locking device 10 includes a base 11, a moving member 12 and a locking member 13. The base 11 is provided with a rotation axis center 111, and the moving member 12 is provided on one side of the base 11 for rotating along the rotation axis center 111 under an external force. In a possible embodiment, the base 11 is provided with an opening, and a rotation axis can be passed through the opening and fixedly connected to form the rotation axis center 111, so that the base 11 can rotate through the rotation axis center 111. The moving member 12 can be provided with a highlighted toggle portion 121, and when the locking device 10 is installed on the guide rail device, the toggle portion 121 is prominently exposed outside the guide rail device, so that the user can apply pressure to the toggle portion 121 to rotate the moving member 12 along the rotation axis center 111.

[0030] The locking member 13 is disposed on a side of the base 11 away from the moving member 12. In a possible implementation, the locking member 13 can be connected to the base 11 through an elastic connecting member 133; when the moving member 12 rotates along the center of the rotating shaft 111 and drives the relative movement of the locking member 13, the length of the elastic connecting member 133 changes, and the locking member 13 is switched between a locked state and a loose state. The user switches the state of the locking member 13 through the moving member 12, the operation is simple, the use of screw tools is reduced, and the locking efficiency is improved.

[0031] Furthermore, unlike the prior art in which the locking device 10 has poor appearance coordination with the guide rail equipment, the locking device 10 of this embodiment is installed on the shell side of the guide rail equipment, and the shape and size of the locking device 10 correspond to the shell side of the guide rail equipment, so that the overall appearance of the guide rail equipment after the locking device 10 is installed is coordinated.

[0032] In the embodiment of the present application, the base 11 of the locking device 10 is provided with a rotation axis center 111; the moving member 12 is provided on one side of the base 11, and is used to rotate along the rotation axis center 111 under an external force; the locking member 13 is provided on the side of the base 11 away from the moving member 12; the moving member 12 rotates along the rotation axis center 111 and drives the relative movement of the locking member 13, so that the locking member 13 is in a locked state or a loosened state. The locking device 10 can be provided on the side of the guide rail device as a side cover 21, and the locking device 10 can achieve locking and loosening through the rotation of the moving member 12, without the assistance of other installation tools, which is convenient for users to perform installation operations, and the structure is simple and easy to implement, which is conducive to improving the locking efficiency of the locking device 10 and reducing labor costs.

[0033] In one embodiment, the locking member 13 includes a first locking portion 131 and a second locking portion 132 that are relatively arranged. When the moving member 12 rotates counterclockwise along the center of the rotating shaft 111, the first locking portion 131 and the second locking portion 132 are relatively close to each other and lock the guide rail device of the external member to be in a locked state; when the moving member 12 rotates clockwise along the center of the rotating shaft 111, the first locking portion 131 and the second locking portion 132 are relatively far away from each other and loosen the guide rail device to be in a loosened state.

[0034] The first locking portion 131 is disposed on a side of the base 11 away from the moving member 12, and the base 11 is connected to the second locking portion 132 via an elastic connecting member 133. When the moving member 12 rotates along the rotating shaft center 111, the first locking portion 131 moves in the opposite direction of the rotating direction of the moving member 12 driven by the moving member 12, and the elastic connecting member 133 expands and contracts during the rotation process, so that the spacing between the first locking portion 131 and the second locking portion 132 changes and the state of the locking member 13 is switched. Specifically, the moving member 12 rotates counterclockwise along the center of the rotating shaft 111, and the first locking portion 131 moves downward under the drive of the moving member 12, so that the first locking portion 131 and the second locking portion 132 are relatively close to each other and locked; the moving member 12 rotates clockwise along the center of the rotating shaft 111, and the first locking portion 131 moves upward under the drive of the moving member 12, so that the first locking portion 131 and the second locking portion 132 are relatively far away from each other and loosened.

[0035] In the embodiment of the present application, the locking device 10 adjusts the distance between the first locking member 13 and the second locking member 13 through a rotating member to achieve the locking and loosening of the locking member 13. No other installation tools are required to assist, which is convenient for users to perform installation operations. The structure is simple and easy to implement, which is beneficial to improving the locking efficiency of the locking device 10 and reducing labor costs.

[0036] Optionally, the movable member 12 includes a toggle portion 121 and a positioning portion 122, the positioning portion 122 is located on one side of the toggle portion 121, the toggle portion 121 is prominently displayed on the positioning portion 122, the toggle portion 121 is used to receive the force applied by the user and rotate in a counterclockwise direction, the positioning portion 122 is connected to the guide rail device to keep the locking member 13 in a locked state; the toggle portion 121 rotates in a clockwise direction, the positioning portion 122 is disengaged from the guide rail device, so that the locking member 13 is in a loose state.

[0037] Specifically, the toggle portion 121 and the positioning portion 122 of the moving member 12 are integrally arranged, the toggle portion 121 protrudes from the positioning portion 122, and the positioning portion 122 is located on one side of the toggle portion 121. When the toggle portion 121 receives the force applied by the user and rotates in the counterclockwise direction, the toggle portion 121 moves upward and drives the positioning portion 122 to engage with the housing side cover 21 of the guide rail device, so that the moving member 12 remains at the current height and the locking member 13 remains in the locked state. When the toggle portion 121 receives the force applied by the user and rotates in the clockwise direction, the toggle portion 121 moves downward and causes the positioning portion 122 to disengage from the housing side cover 21, so that the locking member 13 returns to the loose state.

[0038] For further information, see Figure 3 and Figure 4 , Figure 3 is a structural schematic diagram of a second embodiment of the locking device provided by the present application in a locked state, Figure 4 1 is a schematic diagram of the structure of the second embodiment of the locking device provided by the present application in a loose state. Figure 3 and Figure 4 As shown, the positioning portion 122 is provided with a serrated first connecting surface 122a, and the housing of the guide rail device is provided with a second connecting surface 122b, the shape of the second connecting surface 122b corresponds to the first connecting surface 122a, and the toggle portion 121 rotates counterclockwise to make the first connecting surface 122a of the positioning portion 122 engage with the second connecting surface 122b, so that the locking member 13 remains in a locked state.

[0039] Specifically, the positioning part 122 is provided with a serrated first connection surface 122a, and the housing side cover 21 of the guide rail device is provided with a serrated second connection surface 122b, and the shape and size of the second connection surface 122b correspond to the first connection surface 122a. The toggle part 121 rotates counterclockwise and causes the positioning part 122 to move upward, and the first connection surface 122a of the positioning part 122 is meshed with the second connection surface 122b through the tooth shape. Under the action of the meshing force, the moving part is maintained at the current height and drives the positioning part 122 to be locked, so that the locking member 13 is maintained in the locked state.

[0040] Furthermore, the first connecting surface 122a and the second connecting surface 122b are arc-shaped surfaces to match the moving angle of the moving member 12 when rotating along the rotation axis center 111, so that the positioning portion 122 can perform tooth-shaped meshing during the rotation process.

[0041] Specifically, the toggle portion 121 rotates counterclockwise along the center of the shaft 111 under the external force, so that the arcs of the first connection surface 122a and the second connection surface 122b correspond, and the saw teeth of the first connection surface 122a and the second connection surface 122b mesh with each other, so that the locking member 13 is kept in the locked state. The toggle portion 121 rotates clockwise along the center of the shaft 111 under the external force, and the first connection surface 122a is loosened from the saw teeth of the second connection surface 122b under the drive of the external force, and the first connection surface 122a is driven by the toggle portion 121 to the outside of the arc of the second connection surface 122b, so that the locking member 13 is in the loose state.

[0042] Furthermore, the toggle portion 121 is disposed on a side of the positioning portion 122 close to the gravity direction. The toggle portion 121 rotates counterclockwise under an external force and generates a decomposition force, and the positioning portion 122 is connected to the positioning portion 122 under the action of the decomposition force.

[0043] Specifically, the toggle part 121 is disposed below the positioning part 122. When the toggle part 121 rotates counterclockwise under an external force, the positioning part 122 generates an upward decomposition force driven by the toggle part 121 because the toggle part 121 and the positioning part 122 are integrally disposed. The positioning part 122 is connected to the positioning part 122 under the action of the decomposition force. Since the toggle part 121 is disposed below the positioning part 122, the decomposition force generated by the positioning part 122 is greater than the external force applied by the user, so as to reduce the force required by the user when toggling, save more effort, and improve the user's experience.

[0044] Optionally, the guide rail device is installed between the first locking portion 131 and the second locking portion 132 through a fixing member, the locking member 13 is in a locked state, and the distance between the first locking portion 131 and the second locking portion 132 is less than the length of the fixing member; the locking member 13 is in a loosened state, and the distance between the first locking portion 131 and the second locking portion 132 is greater than or equal to the length of the fixing member.

[0045] Specifically, when the locking member 13 is in the locked state, the distance between the first locking portion 131 and the second locking portion 132 is less than the length of the fixing member, so that the first locking portion 131 and the second locking portion 132 can fix the fixing member, so that the locking device 10 is engaged with the guide rail device and the displacement of the control product is limited. When the locking member 13 is in the loose state, the distance between the first locking portion 131 and the second locking portion 132 is greater than or equal to the length of the fixing member, so that the user can directly remove the locking device 10 in the loose state, so that the control product can move left and right along the guide rail.

[0046] It can be understood that the fixing part can be a separate component used for fixing, or it can be a partial structure of the guide rail in the guide rail device. The fixing part of this embodiment is actually a component connecting the locking part 13 and the guide rail, and no specific limitation is made here.

[0047] In the embodiment of the present application, the movable member 12 rotates counterclockwise along the center of the shaft 111, and the first locking portion 131 moves downward under the drive of the movable member 12, so that the distance between the first locking portion 131 and the second locking portion 132 is less than the length of the fixed member, and the locking member 13 is in a locked state; the movable member 12 rotates clockwise along the center of the shaft 111, and the first locking portion 131 moves upward under the drive of the movable member 12, so that the distance between the first locking portion 131 and the second locking portion 132 is greater than or equal to the length of the fixed member, and the user can directly pull the locking device 10 off the guide rail through the openings of the first locking portion 131 and the second locking portion 132, which is convenient for the user to perform disassembly operations and improve the user's experience.

[0048] Furthermore, the guide rail device includes a guide rail and a control product hung on the guide rail, the locking device 10 is connected to the shell of the control product, the locking piece 13 is in a locked state, the first locking portion 131 and the second locking portion 132 are relatively close to each other and lock the fixing member, so that the control product is fixed on the guide rail through the locking device 10; the locking piece 13 is in a loosened state, the locking device 10 is disengaged from the guide rail, and the control product can move along the guide rail.

[0049] Specifically, the guide rail device may include a guide rail and a control product mounted on the guide rail. The control product includes but is not limited to air switches, programmable controllers and other products mounted on a guide rail of a preset size. The guide rail includes but is not limited to a standard DIN rail with a width of 35 mm. The control product may include a housing, the back of which is connected to the guide rail, and a locking device 10 may be installed on the side of the housing relative to the guide rail.

[0050] See also Figure 5 and Figure 6 , Figure 5 is a structural schematic diagram of a third embodiment of the locking device provided by the present application in a locked state, Figure 6 1 is a schematic structural diagram of the third embodiment of the locking device provided by the present application in a loose state. Figure 5 and Figure 6 As shown, a side cover 21 is provided on the side of the housing, and the shape and size of the locking device 10 correspond to the side cover 21. The locking device 10 can be installed on the side of the side cover 21 close to the controlled product to reduce the material used in the product; the locking device 10 can also be decorated by the side cover 21 to improve the appearance consistency of the guide rail device. In addition, the toggle part 121 of the locking device 10 is prominently exposed outside the side cover 21, which is convenient for the user to switch the locking state by moving the toggle part 121, ensuring the aesthetics of the controlled product while also improving the user's experience.

[0051] In one embodiment, the base 11 , the moving member 12 and the locking member 13 are integrally formed.

[0052] Specifically, the base 11, the moving member 12 and the locking member 13 are integrally arranged, so that the external force received by the moving member 12 can be transmitted to the locking member 13 to switch the state of the locking member 13. In addition, since the base 11, the moving member 12 and the locking member 13 are integrally arranged, the assembly steps of the base 11, the moving member 12 and the locking member 13 are reduced, and it is convenient for users to install the locking device 10 on the guide rail.

[0053] See also Figure 7 and Figure 8 , Figure 7 is a structural schematic diagram of the first embodiment of the guide rail device provided by the present application, Figure 8 Schematic diagram of the structure of the second embodiment of the guide rail device provided by the present application. Figure 7 and Figure 8 As shown, the guide rail device of the embodiment of the present application includes a guide rail 30, a control product 20 and a locking device 10 as in any of the above embodiments.

[0054] The control product 20 is mounted on the guide rail 30 and can move along the extension direction of the guide rail 30; the locking device 10 is arranged on one side of the control product 20. Figure 7 As shown, the user pushes the moving member 12 upward to put the locking device 10 in a locked state. The locking device 10 is used to fix the control product 20 on the guide rail 30 so that the control product 20 and the guide rail 30 do not slide relative to each other. Figure 8 As shown, the user pushes the movable part 12 downward to put the locking device 10 in a loose state; at this time, the distance between the first locking part 131 and the second locking part 132 is greater than or equal to the length of the fixing part, and the locking part 13 is disengaged from the guide rail 30. The user can directly pull the locking device 10 out of the control product 20 through the openings of the first locking part 131 and the second locking part 132 for disassembly.

[0055] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A locking device, characterized in that: The locking device comprises: The base body is provided with a rotating shaft center; A moving member, disposed on one side of the base body, for rotating along the center of the rotating shaft under an external force; A locking member, arranged on a side of the base body away from the moving member; The moving member rotates along the center of the rotating shaft and drives the locking member to move relative to the rotating shaft, so that the locking member is in a locked state or a loosened state.

2. The locking device according to claim 1, characterized in that: The locking member includes a first locking portion and a second locking portion that are relatively arranged opposite to each other. When the movable member rotates counterclockwise along the center of the rotating shaft, the first locking portion and the second locking portion are relatively close to each other and lock the guide rail device of the external member to be in the locked state; when the movable member rotates clockwise along the center of the rotating shaft, the first locking portion and the second locking portion are relatively far away from each other and loosen the guide rail device to be in the loosened state.

3. The locking device according to claim 2, characterized in that: The moving part includes a toggle part and a positioning part, wherein the positioning part is located on one side of the toggle part, and the toggle part is prominently displayed on the positioning part. The toggle part is used to receive the force applied by the user and rotate along the counterclockwise direction, and the positioning part is connected to the guide rail device to keep the locking part in the locked state; when the toggle part rotates along the clockwise direction, the positioning part disengages from the guide rail device to make the locking part in the loose state.

4. The locking device according to claim 3, characterized in that: The positioning portion is provided with a serrated first connecting surface, and the housing of the guide rail device is provided with a second connecting surface, the shape of the second connecting surface corresponds to the first connecting surface, and the toggle portion rotates along the counterclockwise direction and makes the first connecting surface of the positioning portion engage with the second connecting surface, so that the locking member remains in the locked state.

5. The locking device according to claim 4, characterized in that: The first connecting surface and the second connecting surface are arc-shaped surfaces, the toggle portion rotates counterclockwise along the center of the rotating shaft to make the arcs of the first connecting surface correspond to the arcs of the second connecting surface, and the saw teeth of the first connecting surface and the second connecting surface mesh with each other, so that the locking member is kept in the locking state; The toggle portion rotates clockwise along the center of the rotating shaft to loosen the serrations of the first connecting surface and the second connecting surface, and the first connecting surface is driven by the toggle portion to the outside of the arc of the second connecting surface, so that the locking member is in the loosened state.

6. The locking device according to claim 3, characterized in that: The toggle part is arranged on a side of the positioning part close to the gravity direction. The toggle part rotates in the counterclockwise direction under the external force and generates a decomposition force. The positioning part is connected to the positioning part under the action of the decomposition force.

7. The locking device according to claim 2, characterized in that: The guide rail device is installed between the first locking part and the second locking part through a fixing part. When the locking part is in the locking state, the distance between the first locking part and the second locking part is less than the length of the fixing part. When the locking part is in the loosened state, the distance between the first locking part and the second locking part is greater than or equal to the length of the fixing part.

8. The locking device according to claim 7, characterized in that: The guide rail device includes a guide rail and a control product hung on the guide rail, the locking device is connected to the shell of the control product, the locking piece is in the locking state, the first locking part and the second locking part are relatively close to each other and lock the fixing part, so that the control product is fixed on the guide rail through the locking device; the locking piece is in the loose state, the locking device is disengaged from the guide rail, and the control product can move along the guide rail.

9. The locking device according to claim 1, characterized in that: The base, the moving part and the locking part are integrally arranged.

10. A guide rail device, characterized in that: include: guide; A control product is installed on the guide rail and can move along the extension direction of the guide rail; The locking device as described in any one of claims 1 to 8 is arranged on one side of the control product, and the locking device is in a locked state, and the locking device is used to fix the control product on the guide rail so that the control product does not slide relative to each other.

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