A clamping piece of a slide rail inner strip, a slide rail inner strip and a sheet metal cabinet

Abstract

The utility model relates to the technical field of slide rail accessories, more specifically, it relates to a clamping piece of slide rail inner strip, including base, the one side wall of base is arc and is provided with first arc portion, the first arc portion is opened and is provided with assembly hole for being connected with slide rail inner strip, the first arc portion has the protruding setting and is provided with clamping block, the clamping block is spaced apart with the assembly hole setting, the utility model discloses through clamping piece realizes the detachable assembly of drawer and slide rail, and the user can complete the installation without special tool, and the operation is simple and quick, convenient maintenance and replacement, compared with the mode that slide rail and drawer are connected through riveting, through clamping piece, when maintaining the sheet iron cabinet, destructive disassembly is not needed, reduces the maintenance cost and time, prolongs the service life of sheet iron cabinet, and the design of detachable and convenient maintenance accords with modern design concept.

Description

Technical Field

[0001] This utility model relates to the field of slide rail accessories technology, and in particular to a snap-fit ​​component for an inner slide rail, an inner slide rail, and a sheet metal cabinet. Background Technology

[0002] Metal cabinets are storage cabinets made primarily of steel plates. Compared to wooden cabinets, metal cabinets are stronger and can be mass-produced quickly through standardized stamping processes. They are widely used in offices, laboratories, libraries, and factory workshops.

[0003] Currently, the connection between drawers and slides in metal cabinets is mainly achieved by riveting. Matching holes are pre-pressed into the side panels of the metal drawer and the inner rails of the slides. A rivet gun is used to rivet the inner rails of the slides to the side panels of the drawers to form a rigid connection. The outer rails of the slides are connected to the cabinet body of the metal cabinet. The drawer can be pulled out by sliding the inner and outer rails of the slides.

[0004] Regarding the aforementioned technologies, the inventors believe that they have the following drawbacks: the inner rails of the drawer are riveted together, and once the riveting is completed, disassembly requires destructive operations, resulting in high maintenance costs and poor flexibility. Secondly, the riveting connection method makes it difficult for ordinary users to install themselves, which to some extent limits users' purchasing power.

[0005] As users demand greater detachability and ease of maintenance for metal cabinets, traditional riveting methods can no longer meet modern design concepts. Therefore, there is an urgent need to develop structures that facilitate the assembly of drawers and slides to address these pain points. Utility Model Content

[0006] To facilitate the disassembly and assembly of drawers and slides in sheet metal cabinets, this application provides a snap-fit ​​component for the inner rail of the slide, the inner rail of the slide, and the sheet metal cabinet.

[0007] The present invention provides a snap-fit ​​component for the inner rail of a slide rail, the inner rail of the slide rail, and a metal cabinet, which adopts the following technical solution:

[0008] In a first aspect, this application provides a snap-fit ​​component for the inner strip of a slide rail, employing the following technical solution:

[0009] A snap-fit ​​component for an inner rail of a slide rail includes a base. One side wall of the base is provided with a first arc-shaped portion. The first arc-shaped portion has an assembly hole for connecting with the inner rail of the slide rail. The first arc-shaped portion has a protruding snap-fit ​​block, and the snap-fit ​​block is spaced apart from the assembly hole.

[0010] Preferably, the other side wall of the base is provided with a second arc-shaped portion, the first arc-shaped portion and the second arc-shaped portion are arranged opposite to each other, and the second arc-shaped portion is provided with an arc-shaped groove, which is located between the assembly hole and the mounting block.

[0011] Preferably, the first arc-shaped portion has a protruding limiting block, the limiting block being spaced apart from the assembly hole, and the limiting block and the locking block being located on the left and right sides of the assembly hole, respectively.

[0012] Preferably, the distance between the center of the mounting block and the center of the assembly hole is L1, and the distance between the center of the limiting block and the center of the assembly hole is L2, where L1 / L2 = 1.7 to 1.8.

[0013] Preferably, the protrusion height of the mounting block is 1.4 to 1.5 times the thickness of the base, and the protrusion height of the limiting block is 0.5 to 0.6 times the thickness of the base.

[0014] Secondly, this application provides an inner strip for a slide rail, employing the following technical solution:

[0015] A slide rail inner strip includes a snap-fit ​​component for the slide rail inner strip as described above, and also includes an inner strip body. The side wall of the inner strip body has a through hole corresponding to the snap-fit ​​block, an installation hole corresponding to the assembly hole, and a limit hole corresponding to the limit block. The base is located on one side of the inner strip body, the snap-fit ​​block passes through the through hole, and at least a portion of the snap-fit ​​block is located on the other side of the inner strip body.

[0016] Preferably, the inner strip body is provided with a hook for assembly with the drawer side panel, the hook being bent upwards and located on the side wall of the inner strip body away from the base.

[0017] Preferably, the mounting block is provided with an inclined surface, which is gradually inclined downward from the top wall of the mounting block.

[0018] Preferably, the distance between the center of the hook and the center of the mounting hole is L3, where L3 / L1 = 3 to 3.5 times. Both the hook and the snap-fit ​​are provided in two sets, and they are mirror images of each other along the length of the inner strip body.

[0019] Thirdly, this application provides a metal cabinet, which adopts the following technical solution:

[0020] A metal cabinet includes the aforementioned inner slide rail, an outer slide rail, a drawer, and a cabinet body. The outer slide rail is connected to the side panel of the cabinet body. The side panel of the drawer has a corresponding locking hole and a corresponding slot on the hook. The inner slide rail and the outer slide rail are slidably assembled. When the drawer is assembled with the inner slide rail, the hook passes through the slot and abuts against the side panel of the drawer, and the locking block is engaged in the locking hole.

[0021] The beneficial effects of this utility model are as follows:

[0022] The drawer and slide rails can be detached and assembled using snap-fit ​​connectors, allowing users to complete the installation without special tools. The operation is simple and quick, and it is convenient for maintenance and replacement. Compared with the method of connecting the slide rails and drawers by riveting, the snap-fit ​​connectors eliminate the need for destructive disassembly when maintaining the metal cabinet, reducing maintenance costs and time, and extending the service life of the metal cabinet. The detachable and easy-to-maintain design conforms to modern design concepts and is conducive to the sustainable development of the product.

[0023] The drawer slides have hooks inside, which provide upward support when the drawer side panel is inserted. This effectively prevents the drawer from sagging under load or when the slides are worn, ensuring smooth operation. At the same time, the snap-fit ​​mechanism enhances the connection stability between the drawer and the slides, improving the overall rigidity and load-bearing capacity of the drawer.

[0024] When the drawer is assembled with the inner rail, the hook of the inner rail passes through the slot of the drawer and abuts against the drawer side panel. The locking block is engaged in the locking hole. When assembling the drawer with the inner rail, align the slot on the drawer side panel with the hook on the inner rail, and then insert it downwards to complete the installation. The drawer side panel presses against the locking block until the locking block is engaged in the locking hole of the drawer side panel, thus completing the engagement. When it is necessary to disassemble the drawer and the inner rail, press the locking block to disengage it from the locking hole, and then remove the drawer side panel from the hook. Attached Figure Description

[0025] Figure 1 This is a perspective view of Embodiment 1 of this application;

[0026] Figure 2 This is the front view in Embodiment 1 of this application;

[0027] Figure 3 This is a top view of Embodiment 1 of this application;

[0028] Figure 4 This is a rear view in Embodiment 1 of this application;

[0029] Figure 5 This is the left view in Embodiment 1 of this application;

[0030] Figure 6 This is the main view of the inner strip body in Embodiment 2 of this application;

[0031] Figure 7 This is the left view in Embodiment 2 of this application;

[0032] Figure 8 This is the front view in Embodiment 2 of this application;

[0033] Figure 9 yes Figure 8 A magnified view of a section at point A in the middle;

[0034] Figure 10 This is a schematic diagram of the drawer and slide rail assembly in Embodiment 3 of this application;

[0035] Figure 11 This is a schematic diagram of the metal cabinet in Embodiment 3 of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Base; 101. First arc-shaped part; 1011. Assembly hole; 1012. Mounting block; 1013. Limiting block; 1014. Inclined surface; 102. Second arc-shaped part; 1021. Arc-shaped groove; 2. Inner strip body; 201. Through hole; 202. Mounting hole; 203. Limiting hole; 204. Hook; 2041. Guide block; 3. Inner strip of slide rail; 5. Drawer; 501. Cut groove; 6. Cabinet body. Detailed Implementation

[0037] This section will describe in detail the specific embodiments of this application. Preferred embodiments of this application are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so as to intuitively and vividly understand each technical feature and overall technical solution of this application, but they should not be construed as limiting the scope of protection of this application.

[0038] In the description of this application, if directional descriptions are involved, such as "up," "down," "front," "back," "left," "right," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, it is only for the convenience of describing this application and simplifying the description, and does not 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 application. When a feature is referred to as "set," "fixed," or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0039] In the description of this application, the term "several" means one or more, and "more than" means two or more. The terms "greater than," "less than," and "exceeding" should be understood as excluding the stated number, while "above," "below," and "within" should be understood as including the stated number. The terms "first" and "second" should be understood as distinguishing technical features and not as indicating or implying relative importance, the number of indicated technical features, or the order of the indicated technical features.

[0040] Furthermore, unless otherwise defined, the technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art. The terminology used in this application is for the purpose of describing particular embodiments only and not for limiting the application. It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0041] Example 1: As Figure 1-5 As shown, a snap-fit ​​component for an inner rail 3 includes a base 1. One side wall of the base 1 has an arc-shaped first arc-shaped portion 101. The first arc-shaped portion 101 is concave towards the side wall of the base 1 from the outside. The first arc-shaped portion 101 has an assembly hole 1011 for connecting with the inner rail 3. The first arc-shaped portion 101 has a protruding snap-fit ​​block 1012. The snap-fit ​​block 1012 is spaced apart from the assembly hole 1011 and is located on the side of the first arc-shaped portion 101 closest to the center. The snap-fit ​​component is fixedly connected to the inner rail 3 through the assembly hole 1011, for example, by screw connection or riveting, thereby forming a fulcrum for the snap-fit ​​block 1012 at the assembly hole 1011. The arc-shaped side wall design makes the base 1 elastic. When the snap-fit ​​block 1012 is subjected to… When resistance is encountered, the first arc-shaped part 101 undergoes elastic deformation, allowing the locking block 1012 to engage with the pre-drilled locking hole in the side panel of the drawer 5 of the metal cabinet. After the locking block 1012 passes the locking hole, the base 1 springs back and locks the locking block 1012 in the locking hole, thereby assembling the inner rail 3 and the drawer 5. During disassembly, the locking block 1012 is pressed out of the locking hole, thereby disengaging the drawer 5 from the inner rail 3. Users can complete the installation without special tools, making the operation simple and quick, and convenient for maintenance and replacement. Compared with the method of riveting the slide rail to the drawer 5, the locking mechanism eliminates the need for destructive disassembly, reducing maintenance costs and time, and extending the service life of the metal cabinet. The detachable and easy-to-maintain design conforms to modern design concepts.

[0042] It should be noted that the reason this snap-fit ​​fitting is suitable for rail cabinets is that, due to the rigidity of the material, the thickness of the side panel of the wooden drawer 5 is usually much thicker than that of the side panel of the sheet metal drawer 5. This makes it difficult for the snap-fit ​​fitting to penetrate the side panel of the drawer 5, thus failing to achieve an effective snap-fit. Secondly, wood is more susceptible to deformation due to temperature and humidity than steel, which can lead to loosening or failure of the snap-fit ​​fitting, affecting the normal use of the drawer 5. Furthermore, the processing technology of wood is different from that of steel, making it difficult to achieve the precision stamping and forming process required for the snap-fit ​​fitting.

[0043] The snap-fit ​​connector is made of plastic, which has good elasticity and toughness and is easy to deform. This makes the snap-fit ​​connector smoother and easier to operate during the snap-fit ​​and unsnap process.

[0044] Furthermore, to facilitate the engagement and disengagement of the locking block 1012 with the rail cabinet drawer 5, i.e., to enhance the elastic deformation capability of the locking component, a second arc-shaped portion 102 is provided on the other side wall of the base 1. The first arc-shaped portion 101 and the second arc-shaped portion 102 are arranged opposite each other. The second arc-shaped portion 102 has an arc-shaped groove 1021, which is located between the assembly hole 1011 and the locking block 1012. Through the arrangement of the second arc-shaped portion 102 and the joint action of the first arc-shaped portion 101, the entire base 1 can generate greater elastic deformation during the engagement and disengagement process, absorb and release more energy, make the engagement process smoother, and make it easier to apply the force required for disengagement. At the same time, the arc-shaped groove 1021 located between the assembly hole 1011 and the locking block 1012 can further enhance the elastic deformation capability of the locking block 1012. The inner wall of the arc-shaped groove 1021 is arc-shaped, which can alleviate stress concentration.

[0045] Preferably, the center of the second arc-shaped portion 102 is set to coincide with the center of the first arc-shaped portion 101, which ensures uniform stress distribution and improves the durability and reliability of the snap-fit ​​component.

[0046] To improve the stability of the assembly between the snap-fit ​​component and the inner rail 3, and to prevent the snap-fit ​​component from deflecting around the assembly hole 1011 when the snap-fit ​​block 1012 is pressed, thus avoiding deviation of the snap-fit ​​position of the snap-fit ​​block 1012 and affecting normal snap-fit, the first arc-shaped portion 101 has a protruding limiting block 1013. The limiting block 1013 is spaced apart from the assembly hole 1011, and the limiting block 1013 and the snap-fit ​​block 1012 are located on the left and right sides of the assembly hole 1011, respectively. The inner rail 3 has a limiting hole 203 for assembling with the limiting block 1013. Through the limiting block 1013 and the assembly hole 1011, the snap-fit ​​component is able to... The locking component and the inner strip 3 of the slide rail form two limiting points, which restrict the locking component from rotating or deflecting around the assembly hole 1011 during the assembly process, ensuring that the locking block 1012 is locked along the predetermined path. At the same time, the limiting block 1013 and the locking block 1012 are located on the left and right sides of the assembly hole 1011, respectively. When the locking block 1012 is pressed with the assembly hole 1011 as the fulcrum, the limiting block 1013 will move or tend to move towards the limiting hole 203, thereby effectively preventing the locking component from deflecting around the assembly hole 1011, which would cause the locking position of the locking block 1012 to deviate.

[0047] Regarding the specific position design of the clamping block 1012 and the limiting block 1013 on the left and right sides of the assembly hole 1011, the distance between the center of the clamping block 1012 and the center of the assembly hole 1011 is L1, and the distance between the center of the limiting block 1013 and the center of the assembly hole 1011 is L2, where L1 / L2 = 1.7 to 1.8. The larger L1 design means that the clamping block 1012 is farther away from the center of the assembly hole 1011, which makes the clamping arm generated by the clamping block 1012 longer when it is clamped in, and can generate a greater clamping force, thereby enhancing the firmness of the connection. The smaller L2 design makes the limiting block 1013 closer to the center of the assembly hole 1011, which enhances the stability of the limiting block 1013 when restricting the rotation of the clamping part. Since the limiting block 1013 is closer to the center of rotation, the torque generated when it is subjected to lateral force is smaller, and it is not easy to tilt or deform, which can more effectively prevent the clamping part from deflecting.

[0048] Regarding the specific dimensional design of the locking block 1012 and the limiting block 1013, the protrusion height of the locking block 1012 is 1.4 to 1.5 times the thickness of the base 1, preferably 1.44 times, and the protrusion height of the limiting block 1013 is 0.5 to 0.6 times the thickness of the base 1, preferably 0.56 times. The height design of the locking block 1012 ensures that it can generate sufficient locking force, while the height design of the limiting block 1013 ensures that it will not interfere with the drawer 5 and the side panel of the drawer 5 while restricting the rotation of the locking component.

[0049] Regarding the specific dimensional design of the first arc-shaped portion 101, the central angle of the first arc-shaped portion is 4.5° to 6°, and the radius of the circle formed by the arc of the first arc-shaped portion 101 is 120 times the thickness of the base 1, so that the first arc-shaped portion 101 has a gentle arc surface. When the locking block 1012 is engaged and disengaged, the force can be controlled, and it is not easy to get stuck or too loose or too tight.

[0050] Regarding the specific dimensional design of the arc groove 1021, the recess depth of the arc groove 1021 is 0.19 to 0.21 times the thickness of the base 1, ensuring that the arc groove 1021 can play a certain elastic role while ensuring the overall strength of the base 1.

[0051] Example 2: Figure 1-9 As shown, a slide rail inner strip 3 includes a snap-fit ​​component for the slide rail inner strip 3 according to embodiment 2, and also includes an inner strip body 2. The side wall of the inner strip body 2 has a through hole 201 corresponding to the snap-fit ​​block 1012, an installation hole 202 corresponding to the assembly hole 1011, and a limit hole 203 corresponding to the limit block 1013. The base 1 is located on the side of the inner strip body 2 near the outer strip of the slide rail. The snap-fit ​​block 1012 passes through the through hole 201, and at least part of the snap-fit ​​block 1012 is located on the other side of the inner strip body 2, that is, on the side of the slide rail inner strip 3 near the drawer 5 side panel. On the side, the mounting holes 1011 of the snap-fit ​​component and the mounting holes 202 of the inner rail 3 are connected by screws or rivets, thereby achieving a fixed connection between the snap-fit ​​component and the inner rail 3. This fixed connection is installed when the metal cabinet leaves the factory, so the user does not need to install it himself. Secondly, the method of connecting the drawer 5 and the rail by snap-fit ​​component makes it easy to disassemble and reassemble the drawer 5 from the cabinet body 6. No complicated tools are needed. Installation can be completed with a simple pressing operation, which is convenient and quick and reduces the skill requirements of the operator.

[0052] To improve the support stability of the inner rail 3 for the drawer 5, the inner rail body 2 is provided with a hook 204 for assembly with the side panel of the drawer 5. The hook 204 is bent upwards and located on the side wall of the inner rail body 2 away from the base 1. The side wall of the drawer 5 has a groove 501 for hooking the hook 204. The side panel of the drawer 5 is inserted into the hook 204. When the side panel of the drawer 5 abuts against the bottom wall of the hook 204, the locking block 1012 of the locking member is located in the locking hole of the side panel of the drawer 5. Through the upward bending design of the hook 204, after the side panel of the drawer 5 is inserted into the hook 204, an upward support force can be provided, effectively preventing the drawer 5 from sagging under load or when the rail is worn, ensuring the smooth operation of the drawer 5. The snap-fit ​​mechanism enhances the connection stability between drawer 5 and the slide rail, improving the overall rigidity and load-bearing capacity of drawer 5. Furthermore, the design of the hook 204 and the slot 501 makes the installation of the drawer 5 side panel simpler and faster. During installation, align the slot 501 on the drawer 5 side panel with the hook 204 on the inner strip 3 of the slide rail, and then insert it to complete the installation. The drawer 5 side panel will first press the snap-fit ​​block 1012 until it engages with the snap-fit ​​hole of the drawer 5 side panel, improving assembly efficiency. When drawer 5 needs to be disassembled for repair or replacement, press the snap-fit ​​block 1012 to disengage from the snap-fit ​​hole, and then remove the drawer 5 side panel from the hook 204.

[0053] It should be noted that since drawer 5 is made of steel plate, and the thickness of the steel plate is much smaller than that of the wooden cabinet drawer 5, the side panel of the metal cabinet drawer 5 can be inserted into the hook part 204 inside the slide rail.

[0054] In order to facilitate the insertion of the drawer 5 side panel into the hook 204 and to abut against the bottom wall of the hook 204, the top of the hook 204 has a protruding guide block 2041. The guide block is inclined away from the side wall of the inner strip body 2, so as to guide the insertion of the drawer 5 side panel.

[0055] To ensure that the latching block 1012 can slide better into the latching hole on the drawer 5 side panel when it is inserted into the hook 204, the latching block 1012 is provided with an inclined surface 1014. The inclined surface 1014 is gradually inclined downward from the top wall of the latching block 1012. The inclined surface 1014 can guide the latching block 1012 to slide down gradually and smoothly align with the latching hole on the drawer 5 side panel, avoiding the situation where the latching block 1012 directly hits the edge of the latching hole or gets stuck due to the angle, making the assembly process smoother.

[0056] Regarding the specific arrangement of the hook 204 and the snap-fit, the distance between the center of the hook 204 and the center of the assembly hole 1011 is L3, where L3 / L1 = 3 to 3.5 times, preferably 3.2 times. Two sets of hooks 204 and snap-fit ​​are provided, and they are mirror images of each other along the length of the inner strip body 2. The mirror image symmetrical arrangement of the two sets of hooks 204 and snap-fit ​​is close to both ends of the inner strip body 2, which can evenly distribute the force of the drawer 5 and improve the stability of the assembly of the drawer 5 and the slide rail.

[0057] To ensure the effective engagement between the latching component and the drawer 5, the distance between the latching block 1012 and the side wall of the inner strip body 2 is greater than the distance between the inner side wall of the hook 204 and the side wall of the inner strip body 2. The distance between the latching block 1012 and the side wall of the inner strip body 2 is 1.7 to 2.5 times the distance between the inner side wall of the hook 204 and the side wall of the inner strip body 2, thereby ensuring the assembly stability of the drawer 5 and the inner strip of the slide rail 3.

[0058] This embodiment provides a specific dimensional design for the inner rail 3. The base 1 has a thickness of 2.5mm, the protrusion height of the locking block 1012 is 3.8mm, the protrusion height of the limiting block 1013 is 1.4mm, the distance between the center of the locking block 1012 and the center of the mounting hole 1011 is L1 = 14mm, the distance between the limiting block 1013 and the center of the mounting hole 1011 is L2 = 8mm, the distance between the center of the hook 204 and the center of the mounting hole 1011 is L3 = 44.8mm, the distance between the locking block 1012 and the side wall of the inner rail body 2 is 2.4mm, and the thickness of the inner rail body 2 is 1.2mm.

[0059] Example 3: As Figure 1-11 As shown, a metal cabinet includes an inner slide rail 3 as described in embodiment 2, and also includes an outer slide rail, a drawer 5, and a cabinet body 6. The outer slide rail is connected to the side panel of the cabinet body 6. The side panel of the drawer 5 has a corresponding locking hole for the locking block 1012 and a corresponding slot 501 for the hook 204. The inner slide rail 3 and the outer slide rail are slidably assembled. When the drawer 5 is assembled with the inner slide rail 3, the hook 204 passes through the slot 501 and abuts against the side panel of the drawer 5, and the locking block 1012 is engaged with the inner slide rail 3. When assembling drawer 5 and inner slide rail 3 in the mounting hole, align the groove 501 on the side panel of drawer 5 with the hook 204 on the inner slide rail 3, and then insert it downwards to complete the installation. The side panel of drawer 5 presses against the mounting block 1012 until the mounting block 1012 is in the mounting hole of the side panel of drawer 5 to complete the snap-fit ​​assembly. When it is necessary to disassemble and pull out drawer 5 and inner slide rail 3, press the mounting block 1012 to disengage from the mounting hole, and then remove the side panel of drawer 5 from the hook 204.

[0060] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A snap-fit ​​component for an inner strip of a slide rail, characterized in that: The device includes a base, one side wall of which is arc-shaped and has a first arc-shaped portion. The first arc-shaped portion has an assembly hole for connecting with the inner strip of the slide rail. The first arc-shaped portion has a protruding locking block, which is spaced apart from the assembly hole.

2. The snap-fit ​​component for the inner strip of a slide rail according to claim 1, characterized in that: The other side wall of the base is provided with a second arc-shaped portion, the first arc-shaped portion and the second arc-shaped portion are arranged opposite each other, and the second arc-shaped portion is provided with an arc-shaped groove, which is located between the assembly hole and the clamping block.

3. The snap-fit ​​component for the inner strip of a slide rail according to claim 1, characterized in that: The first arc-shaped portion has a protruding limiting block, which is spaced apart from the assembly hole, and the limiting block and the locking block are respectively located on the left and right sides of the assembly hole.

4. The snap-fit ​​component for the inner strip of a slide rail according to claim 3, characterized in that: The distance between the center of the mounting block and the center of the assembly hole is L1, and the distance between the center of the limiting block and the center of the assembly hole is L2, where L1 / L2 = 1.7 to 1.

8.

5. A snap-fit ​​component for an inner rail according to claim 3 or 4, characterized in that: The protrusion height of the mounting block is 1.4 to 1.5 times the thickness of the base, and the protrusion height of the limiting block is 0.5 to 0.6 times the thickness of the base.

6. A slide rail inner strip, comprising a snap-fit ​​member as described in any one of claims 4 to 5, characterized in that: It also includes an inner strip body, the side wall of which has a through hole corresponding to the mounting block, an installation hole corresponding to the assembly hole, and a limit hole corresponding to the limiting block. The base is located on one side of the inner strip body, the mounting block passes through the through hole, and at least part of the mounting block is located on the other side of the inner strip body.

7. The inner strip of the slide rail according to claim 6, characterized in that: The inner strip body is provided with a hook for assembly with the drawer side panel. The hook is bent upward and located on the side wall of the inner strip body away from the base.

8. The inner strip of the slide rail according to claim 6, characterized in that: The mounting block is provided with an inclined surface, which is gradually inclined downward from the top wall of the mounting block.

9. The inner strip of the slide rail according to claim 7, characterized in that: The distance between the center of the hook and the center of the assembly hole is L3, where L3 / L1 = 3 to 3.5 times. Both the hook and the snap-fit ​​are provided in two sets, and they are mirror images of each other along the length of the inner strip body.

10. A metal cabinet, comprising the inner rail of a slide rail as described in any one of claims 7 to 9, characterized in that: It also includes the outer slide rail, drawer, and cabinet body. The outer slide rail is connected to the side panel of the cabinet body. The side panel of the drawer has a corresponding locking hole and a corresponding groove on the hook. The inner slide rail is slidably assembled with the outer slide rail. When the drawer is assembled with the inner slide rail, the hook passes through the groove and abuts against the side panel of the drawer. The locking block is engaged in the locking hole.

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