Cleaning frame for medical apparatus and instruments

Abstract

The utility model discloses a cleaning frame for medical instruments, and relates to the field of medical instrument disinfection. The medical instrument cleaning frame comprises a sliding rail, at least one bearing piece and a first fixing piece, the bearing piece comprises two bearing plates, the bearing plates are provided with draining through holes, the two bearing plates are arranged in the length direction of the sliding rail, the angle between the two bearing plates can be changed, and the first fixing piece is arranged between the two bearing plates of the bearing piece. The at least one bearing plate is slidably arranged on the sliding rail so that the height of the bearing part can be adjusted, the bearing part is used for bearing a to-be-cleaned part, and the first fixing part is arranged on the bearing part and used for fixing the to-be-cleaned part. Therefore, the angle between the two bearing plates can be changed, the relative position of the two bearing plates can be adjusted, the first fixing piece is matched, to-be-cleaned pieces of different types and different sizes can be conveniently borne and fixed, the universality of the cleaning frame is improved, use is convenient, the difficulty of cleaning the to-be-cleaned pieces can be reduced, and the cleaning efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of medical device disinfection, and in particular to a cleaning rack for medical devices. Background Technology

[0002] In related technologies, medical devices come in a wide variety of types and sizes. However, existing cleaning racks are inconvenient to use, resulting in high difficulty and low efficiency in cleaning medical devices. Moreover, existing cleaning racks are only suitable for cleaning a few fixed types of medical devices, and have poor versatility. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a cleaning rack for medical devices, which can support and fix different types and sizes of items to be cleaned, has strong versatility, is easy to use, and can reduce the difficulty of cleaning items and improve cleaning efficiency.

[0004] A cleaning rack for medical devices according to an embodiment of the present invention includes: a slide rail; at least one support member, the support member including two support plates, each support plate having a drainage hole, the two support plates being arranged along the length direction of the slide rail and the angle between the two support plates being variable, at least one of the two support plates of the support member being slidably disposed on the slide rail so that the height of the support member is adjustable, the support member being used to support the item to be cleaned; and a first fixing member disposed on the support member, the first fixing member being used to fix the item to be cleaned.

[0005] According to the embodiments of the present invention, a cleaning rack for medical devices can change the angle between two support plates and adjust the relative position of the two support plates. With the help of the first fixing member, it can easily support and fix different types and sizes of items to be cleaned, thereby improving the versatility of the cleaning rack and making it easy to use. It can reduce the difficulty of cleaning items to be cleaned and improve cleaning efficiency.

[0006] According to some embodiments of the present invention, there are multiple carriers, and the multiple carriers are arranged along the length direction of the slide rail.

[0007] According to some embodiments of the present invention, along the length direction of the slide rail, the outermost support plate of the support member that is away from the other support members is fixedly connected to the slide rail, and the other support plates are slidably disposed on the slide rail.

[0008] According to some embodiments of the present invention, the carrier further includes a connecting plate, which is connected between the two carrier plates.

[0009] According to some embodiments of the present invention, the surface of the carrier and the surface of the connecting plate both have multiple protrusions.

[0010] According to some embodiments of the present invention, the cleaning rack for medical devices further includes: a slider, wherein the support plate is slidably disposed on the slide rail via the slider.

[0011] According to some embodiments of the present invention, the slider includes: a slider body and a locking rod. The slider body is slidably disposed on the slide rail and has a threaded through hole. The locking rod is screwed to the threaded through hole and can be screwed along the extension direction of the threaded through hole to lock with the slide rail.

[0012] According to some embodiments of the present invention, the cleaning rack for medical devices further includes: a second fixing member, the number of the second fixing members being the same as the number of the support plates and corresponding one-to-one, the second fixing member being rotatably disposed on the corresponding support plate, and the second fixing member being used to fix the item to be cleaned.

[0013] According to some embodiments of the present invention, the cleaning rack for medical devices further includes: an elastic drive member, which is connected to the second fixing member and is used to drive the second fixing member to rotate toward the corresponding support plate.

[0014] According to some embodiments of the present invention, there are two slide rails, which are arranged at intervals along a direction perpendicular to the length direction of the slide rails, and each bearing plate cooperates with the two slide rails.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic diagram of a cleaning rack according to an embodiment of the present utility model.

[0018] Figure label:

[0019] Slide rail 1;

[0020] Component 2; Support plate 21; Drainage hole 22; Connecting plate 23;

[0021] 4. Slider; 5. Second fixing part; 6. Protrusion;

[0022] 10. Cleaning rack. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0024] The cleaning rack 10 for medical devices according to an embodiment of the present invention is described below with reference to the accompanying drawings.

[0025] like Figure 1 As shown, the cleaning rack 10 for medical devices according to an embodiment of the present invention includes: a slide rail 1, at least one support member 2, and a first fixing member. The support member 2 includes two support plates 21, each support plate 21 having a drainage hole 22. The two support plates 21 are arranged along the length direction of the slide rail 1, and the angle between the two support plates 21 is variable. At least one of the two support plates 21 of the support member 2 is slidably disposed on the slide rail 1 so that the height of the support member 2 is adjustable. The support member 2 is used to support the device to be cleaned. The first fixing member is disposed on the support member 2 and is used to fix the device to be cleaned.

[0026] The cleaning rack 10 can be used to support and fix the parts to be cleaned, which can be medical devices, especially precision medical devices, such as ophthalmic precision instruments. After fixing the parts to be cleaned to the cleaning rack 10, the cleaning rack 10 and the parts to be cleaned can be placed together in the corresponding cleaning tank for cleaning. Multiple cleaning racks 10 can be placed in the cleaning tank for simultaneous cleaning. The support member 2 is used to support the parts to be cleaned. The support member 2 includes two support plates 21, each of which has a drainage hole 22. The drainage hole 22 can penetrate the support plate 21 along the thickness direction of the support plate 21, so that the cleaning liquid on the support member 2 can flow out from the bottom of the support plate 21 through the drainage hole 22 to achieve a drainage effect. As some embodiments of this application, the support plate 21 can have multiple drainage holes 22, which can be evenly distributed on the support plate 21 to improve the drainage effect of the support plate 21.

[0027] The first fixing member is disposed on the bearing member 2. In some embodiments of this utility model, the first fixing member can be snap-fitted to the bearing member 2, bolted to it, etc. In other embodiments of this utility model, the first fixing member can be integrally formed with the bearing member 2.

[0028] It should be noted that the shape of the first fixing member is not limited to the multiple protrusions proposed in this application. In some embodiments of this utility model, the first fixing member can be constructed as a strap, which can wrap around the item to be cleaned to fix it to the carrier 2. In other embodiments of this utility model, the first fixing member can be constructed as a slot, where a portion of the item to be cleaned can extend into the slot and abut against it for positioning, thereby fixing the item to the carrier 2. In some embodiments of this utility model, the first fixing member can fix at least one item to be cleaned; further, the first fixing member can fix multiple items to be cleaned to facilitate simultaneous cleaning of multiple items, thereby improving work efficiency.

[0029] Along the first direction (the length direction of the slide rail 1), two support plates 21 of the support member 2 are arranged, and the angle between the two support plates 21 can be changed. As some embodiments of this application, the two support plates 21 can be rotatably connected by a rotating member to change the angle between them. The rotating member can be constructed as a shaft, spring, torsion spring, etc. This arrangement provides good rotational effect and is easy to implement. As other embodiments of this utility model, the two support plates 21 can be integrally formed, and the support plates 21 can be elastic and elastically deformable. The connection point of the two support plates 21 can elastically deform under external force, allowing the two support plates 21 to rotate relative to each other to change the angle between them. This arrangement results in a simple structure, good integration, simpler manufacturing and processing, and achieves the effect of a fewer-part design.

[0030] The first direction is perpendicular to the second direction. This application uses the second direction as the vertical direction as an example for explanation. The slide rail 1 extends along the first direction. In the two support plates 21 of the support member 2, the adjacent ends of the two support plates 21 are rotatably connected, and the opposite ends of the two support plates 21 can be connected to the slide rail 1. At least one support plate 21 is slidably disposed on the slide rail 1 at the end opposite to the other support plate 21. Specifically, in the two support plates 21 of the support member 2, one support plate 21 is slidably disposed on the slide rail 1 at the end opposite to the other support plate 21, and the other support plate is fixed to the slide rail 1 at the end opposite to one of the support plates 21. Alternatively, the opposite ends of the two support plates 21 can be slidably disposed on the slide rail 1.

[0031] As an embodiment of this application, taking the example of two support plates 21 slidably disposed on the slide rail 1, when the opposite ends of the two support plates 21 slide in the opposite direction along the first direction, the connection between the two support plates 21 moves downward along the second direction, the height of the support member 2 decreases, and the angle between the connection between the two support plates 21 increases. When the opposite ends of the two support plates 21 slide towards each other along the first direction, the connection between the two support plates 21 moves upward along the second direction, the height of the support member 2 increases, and the angle between the two support plates 21 decreases. When the opposite ends of the two support plates 21 slide in the same direction along the first direction, the position of the support member 2 relative to the slide rail 1 can be determined. By slidably disposing of at least one support plate 21 on the slide rail 1, the angle between the two support plates 21 can be changed, and the relative position of the two support plates 21 can be adjusted to facilitate the assembly of different types and sizes of parts to be cleaned. Furthermore, it facilitates the assembly of parts to be cleaned and allows the parts to be fixed at a suitable height, thereby improving the cleanliness of the cleaning process.

[0032] In the above embodiment, by slidably mounting at least one support plate 21 on the slide rail 1, the angle between the two support plates 21 can be changed and the relative position of the two support plates 21 can be adjusted. With the first fixing member, it is convenient to carry and fix different types and sizes of items to be cleaned, thereby improving the versatility of the cleaning rack 10 and making it easy to use. It can reduce the difficulty of cleaning the items to be cleaned and improve the cleaning efficiency.

[0033] As some embodiments of this application, the support plate 21 and the slide rail 1 can be made of stainless steel, and the outer surface of the part to be cleaned can have a Teflon coating. Teflon coating has good chemical stability and is not easily corroded by chemical reagents (e.g., cleaning solution used to clean the part), which can reduce the risk of contamination of the part during the cleaning process. In some embodiments of this utility model, such as... Figure 1 As shown, there are multiple carrier components 2, which are arranged along the length of the slide rail 1.

[0034] The number of carriers 2 can be multiple, such as two, three, or four. The multiple carriers 2 are arranged along the first direction, and each carrier 2 is provided with a first fixing member. Each carrier 2 can be used to fix the item to be cleaned. The heights of the multiple carriers 2 can be different, and each carrier 2 of different height can be used to fix the corresponding item to be cleaned, so that the cleaning rack 10 can carry and fix multiple items to be cleaned of various types and sizes, so as to clean multiple items to be cleaned at the same time. This is beneficial to further improve the versatility of the cleaning rack 10, improve cleaning efficiency, and reduce cleaning difficulty.

[0035] In some embodiments of this utility model, such as Figure 1As shown, along the length of the slide rail 1, the outermost support plate 21, which is far away from the other support plates 2, is fixedly connected to the slide rail 1, while the other support plates 21 are slidably disposed on the slide rail 1.

[0036] In this configuration, along the first direction (the length direction of the slide rail 1), among the multiple support members 2, one end of the support plate 21 of the two outermost support members 2, which is furthest from the other support members 2, can be fixedly connected to the slide rail 1. The remaining support plates 21 are all slidably mounted on the slide rail 1. This arrangement allows all the support members 2 to slide within the range of the slide rail 1, reducing the risk of the support members 2 sliding off the slide rail 1 and improving the structural stability of the cleaning rack 10. As some embodiments of this application, the support plate 21 furthest from the other support members 2 can be fixedly connected to the slide rail 1 by screwing, snap-fitting, or other methods.

[0037] In some embodiments of this utility model, such as Figure 1 As shown, the support member 2 also includes a connecting plate 23, which is connected between the two support plates 21.

[0038] The connecting plate 23 can be connected between two support plates 21. In some embodiments of this application, the connecting plate 23 can be connected between two support plates 21 of the same support member 2. In other embodiments, in two adjacent support members 2, the connecting plate 23 can be connected between two adjacent support plates 21 of the two support members 2. The connecting plate 23 can elastically deform; when two adjacent support plates 21 rotate relative to each other, the connecting plate 23 can deform to change the angle between the two support plates 21. In some embodiments of this application, the connecting plate 23 can be integrally formed with two adjacent support plates 21.

[0039] In some embodiments of this utility model, such as Figure 1 As shown, the surface of the carrier 2 and the surface of the connecting plate 23 both have multiple protrusions 6.

[0040] The upward-facing surfaces of the support plate 21 and the connecting plate 23 can each be provided with multiple protrusions 6. These protrusions 6 can abut and limit the structure of the part to be cleaned. For example, the part to be cleaned can be sandwiched between the multiple protrusions 6 to fix it in place. This arrangement facilitates fixing the part to be cleaned onto the cleaning rack 10 and allows for easy adjustment of its position on the rack 10. As some embodiments of this application, the protrusions 6 can be made of silicone material. Silicone is soft and has good chemical stability, which can reduce the risk of the protrusions 6 contaminating or abrading the part to be cleaned.

[0041] In some embodiments of this utility model, such as Figure 1As shown, the cleaning rack 10 also includes a slider 4, and the support plate 21 is slidably mounted on the slide rail 1 via the slider 4.

[0042] In this embodiment, along the first direction, the slider 4 can be fixedly connected to one end of the support plate 21. As some embodiments of this utility model, the slider 4 can be screwed or snapped to one end of the support plate 21, and the slider 4 can be slidably disposed on the slide rail 1. The slider 4 can slide relative to the slide rail 1 along the extension direction of the slide rail 1, so as to drive one end of the support plate 21 to slide relative to the slide rail 1 along the extension direction of the slide rail 1. The position and shape of the support plate 21 can be adjusted by the slider 4, thereby adjusting the height of the support member 2 and the angle between two adjacent support plates 21, so as to support and fix the corresponding type and size of the item to be cleaned. This arrangement can reduce the adjustment difficulty of the cleaning rack 10 and improve the ease of use of the cleaning rack 10.

[0043] In some embodiments of this utility model, the slider 4 includes: a slider body and a locking rod. The slider body is slidably disposed on the slide rail 1 and has a threaded through hole. The locking rod is screwed to the threaded through hole and can be screwed along the extension direction of the threaded through hole to lock with the slide rail 1.

[0044] The slider body is slidably mounted on the slide rail 1 and can slide relative to the slide rail 1 along its extension direction. The slider body may have a threaded through-hole that penetrates the slider body. A locking rod can be screwed into the threaded through-hole along its extension direction and threaded onto the internal thread of the through-hole. One end of the locking rod extending into the threaded through-hole can abut against the slide rail 1 to lock the locking rod in place. After adjusting the height of the support member 2 and the angles of the two support plates 21, the corresponding locking rod can be screwed in to lock the locking rod against the slide rail 1, thus fixing the relative position of the support member 2 and the slide rail 1. This allows the support member 2 to stably support the item to be cleaned, facilitating cleaning according to actual needs.

[0045] In some embodiments of this utility model, each carrier 2 is provided with a plurality of first fixing members, which are movably or detachably provided on the corresponding carrier 2.

[0046] Each of the carrier components 2 can be provided with multiple first fixing components. The multiple first fixing components on each carrier component 2 can be used to fix at least one item to be cleaned. This arrangement can improve the fixing firmness of the item to be cleaned and improve the reliability of the cleaning rack 10.

[0047] In some embodiments of this application, the first fixing member can be movably disposed on the corresponding support member 2. For example, one end of the first fixing member is movable from the corresponding support member 2, and the other end of the first fixing member can be snapped onto the corresponding support member 2. This arrangement facilitates fixing the parts to be cleaned by the first fixing member. In some embodiments of this application, the first fixing member can be detachably disposed on the corresponding support member 2. This arrangement allows the first fixing member to be installed or removed as needed. When there are many parts to be cleaned, multiple first fixing members can be installed on the support member 2 to increase the number of parts to be cleaned that the support member 2 can support, so as to clean multiple parts to be cleaned simultaneously. When there are few parts to be cleaned, the number of first fixing members installed on the support member 2 can be appropriately reduced to reduce redundancy and interference between the first fixing members and the parts to be cleaned, making assembly easier and use more convenient.

[0048] In some embodiments of this utility model, such as Figure 1 As shown, the cleaning rack 10 also includes a second fixing member 5. The number of second fixing members 5 is the same as the number of bearing plates 21 and they correspond one-to-one. The second fixing members 5 are rotatably disposed on the corresponding bearing plates 21. The second fixing members 5 are used to fix the items to be cleaned.

[0049] The number of second fixing members 5 can be the same as the number of supporting plates 21 and correspond one-to-one. The second fixing members 5 can be used to fix the items to be cleaned. The second fixing members 5 are rotatably disposed on the corresponding supporting plates 21. As some embodiments of this application, the second fixing members 5 can be constructed as plate-shaped structures, strip-shaped structures, etc. Taking the second fixing member 5 as a plate-shaped structure as an example, the second fixing member 5 can have two opposite ends. One end of the second fixing member 5 can be rotatably connected to the corresponding supporting plate 21. One end of the second fixing member 5 can be rotatably connected to the corresponding supporting plate 21 through components such as a rotating shaft and a torsion spring. The other end of the second fixing member 5 can rotate relative to the supporting plate 21 around one end of the second fixing member 5 and the supporting plate 21.

[0050] When it is necessary to fix the part to be cleaned by the second fixing member 5, the second fixing member 5 can be rotated relative to the support plate 21 so that the second fixing member 5 moves away from the support plate 21, so that space is left between the second fixing member 5 and the support plate 21. Then, the part of the part to be cleaned can be placed between the second fixing member 5 and the support plate 21, and the second fixing member 5 can be rotated again so that the second fixing member 5 moves closer to the support plate 21 until the second fixing member 5 abuts against the part of the part to be cleaned to fix the part to be cleaned. This further improves the placement stability of the part to be cleaned and reduces the risk of the part to be cleaned moving relative to the cleaning rack 10 or even falling off the cleaning rack 10 during the cleaning process, so as to ensure the cleaning quality.

[0051] In some embodiments of this utility model, the cleaning rack 10 further includes an elastic drive member, which is connected to the second fixing member 5 and is used to drive the second fixing member 5 to rotate toward the corresponding support plate 21.

[0052] The elastic drive component can be constructed as a torsion spring, a spring, etc., and can be connected to the second fixing component 5. Taking a torsion spring as an example, the torsion spring can be connected between the second fixing component 5 and the support plate 21. The torsion spring can drive the second fixing component 5 to rotate in the direction of the corresponding support plate 21. When the part to be cleaned is fixed between the second fixing component 5 and the corresponding support plate 21, the torsion spring can cause the second fixing component 5 to exert pressure on the part to be cleaned, so that the second fixing component 5 can firmly fix the part to be cleaned, thereby further improving the connection stability between the part to be cleaned and the cleaning rack 10.

[0053] In some embodiments of this utility model, such as Figure 1 As shown, there are two slide rails 1, which are arranged at intervals along a direction perpendicular to the length direction of the slide rails 1. Each bearing plate 21 is matched with two slide rails 1.

[0054] Among them, slide rail 1 can be set to two, and the two slide rails 1 can be along... Figure 1 The third direction (the direction perpendicular to the length direction of the slide rail 1) is arranged at intervals. The third direction is perpendicular to both the first and second directions. As some embodiments of this application, the two slide rails 1 can be arranged in parallel. One end of each bearing plate 21 along the first direction can simultaneously slide and cooperate with both slide rails 1. This arrangement can improve the connection stability between the bearing plate 21 and the slide rail 1, and at the same time improve the stability of the bearing plate 21 and the slide rail 1 during relative sliding. It is easy to operate, reduces the difficulty of adjusting the position and height of the bearing member 2, and improves the ease of use.

[0055] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0056] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0057] In the description of this utility model, "multiple" means two or more.

[0058] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0059] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0061] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning rack (10) for medical instruments, characterized in that, include: Slide rail (1); At least one support member (2) includes two support plates (21), each support plate (21) having a drainage hole (22). The two support plates (21) are arranged along the length of the slide rail (1) and the angle between the two support plates (21) is variable. At least one of the two support plates (21) of the support member (2) is slidably disposed on the slide rail (1) so that the height of the support member (2) is adjustable. The support member (2) is used to support the item to be cleaned. The first fixing member is disposed on the bearing member (2) and is used to fix the part to be cleaned.

2. The cleaning rack (10) for medical instruments according to claim 1, characterized in that The number of the carrier (2) is multiple, and the multiple carriers (2) are arranged along the length direction of the slide rail (1).

3. The cleaning rack (10) for medical devices according to claim 2, characterized in that, Along the length of the slide rail (1), the outermost support plate (21) of the support member (2) that is away from the other support members (2) is fixedly connected to the slide rail (1), and the other support plates (21) are slidably disposed on the slide rail (1).

4. The cleaning rack (10) for medical instruments according to claim 1, characterized in that The support member (2) further includes a connecting plate (23), which is connected between the two support plates (21).

5. The rack (10) for cleaning of medical instruments according to claim 4, characterized in that The surface of the bearing member (2) and the surface of the connecting plate (23) both have multiple protrusions (6).

6. The cleaning rack (10) for medical devices according to claim 1, characterized in that, Also includes: The slider (4) and the support plate (21) are slidably disposed on the slide rail (1) via the slider (4).

7. The rack (10) for cleaning of medical instruments according to claim 6, characterized in that The slider includes a slider body and a locking rod. The slider body is slidably disposed on the slide rail (1) and has a threaded through hole. The locking rod is screwed to the threaded through hole and can be screwed along the extension direction of the threaded through hole to lock with the slide rail (1).

8. The cleaning rack (10) for medical devices according to claim 1, characterized in that, Also includes: The number of the second fixing member (5) is the same as the number of the bearing plate (21) and they correspond one-to-one. The second fixing member (5) is rotatably disposed on the corresponding bearing plate (21). The second fixing member (5) is used to fix the item to be cleaned.

9. The rack (10) for cleaning of medical instruments according to claim 8, characterized in that Also includes: An elastic drive member is connected to the second fixing member (5) and is used to drive the second fixing member (5) to rotate toward the corresponding bearing plate (21).

10. The rack (10) for medical instruments according to any one of claims 1-9, characterized in that, There are two slide rails (1), which are arranged at intervals along a direction perpendicular to the length direction of the slide rails (1). Each bearing plate (21) is engaged with the two slide rails (1).

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