Closing and locking device of sequential movement sliding rail

Abstract

The utility model relates to a closing and locking device of a sequential movement sliding rail. The closing and locking device comprises an inner rail, a middle rail and an outer rail, the end of the inner rail is movably connected with a pressing block, and a cavity is formed in the middle of the pressing block. The end of the inner rail is rotationally connected with an unlocking block, the unlocking block is located in the cavity of the pressing block, and the pressing block abuts against the unlocking block. The end portion of the outer rail is provided with an inner rail and outer rail locking structure, the inner rail and outer rail locking structure comprises a hook, and when the inner rail and the outer rail are locked, the unlocking block is connected with the hook in a clamped mode, the inner rail and outer rail locking structure has the advantages that the locking stability of the inner rail and the outer rail is improved, and rapid unlocking of the inner rail and the outer rail is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to slide rail part field, especially a closing locking device of sequential motion slide rail. BACKGROUND

[0002] The slide rail, also known as guide rail or slide, is a hardware connecting component fixed on a furniture cabinet for the movement of a drawer or a cabinet panel. It is widely used in furniture, mechanical equipment and other fields. The slide rail includes a self-locking structure to ensure that the slide rail is automatically locked at a specific position, preventing accidental movement caused by external force or vibration.

[0003] The most commonly used self-locking structure of the slide rail currently has a plurality of retractable locking teeth on the unlocking mechanism and a plurality of locking grooves on the slide rail along the length direction, with the locking teeth and the locking grooves inserted and matched. However, the locking teeth need to be matched with a complex springback structure to ensure that they cannot easily come out of the locking grooves. This structure requires more components and has low structural reliability, which is inconvenient for maintenance and replacement due to the complex structure.

[0004] It should be noted that the information disclosed in the above background section is only used to enhance the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those skilled in the art. SUMMARY

[0005] In view of the deficiencies of the prior art, the utility model discloses a closing locking device of sequential motion slide rail.

[0006] The technical scheme adopted by the utility model is as follows:

[0007] A closing locking device of sequential motion slide rail, comprising an inner rail, a middle rail and an outer rail in sliding cooperation; the end of the inner rail is movably connected with a pressing block, the middle part of the pressing block is provided with a cavity; the end of the inner rail is rotatably connected with an unlocking block, the unlocking block is located in the cavity of the pressing block, and the pressing block abuts against the unlocking block; the end of the outer rail is provided with an inner-outer rail locking structure, the inner-outer rail locking structure comprises a hook, and the unlocking block and the hook are clamped when the inner rail and the outer rail are locked.

[0008] Further, the cavity of the pressing block is provided with an inner wall one and an inclined inner wall two, the inner wall one is located on the inner side of the cavity of the pressing block, and the inner wall two is located on the outer side of the cavity of the pressing block.

[0009] Further, a tension spring is arranged between the pressing block and the inner rail.

[0010] Further, one side of the unlocking block is provided with a side wall two one, and the side wall two one is tangent to the inner wall one when the inner rail and the outer rail are in the locked state.

[0011] Further, the unlocking block is provided with a side wall two two located at the opposite side of the side wall two one, and the side wall two two is tangent to the inner wall two.

[0012] Further, the top of the unlocking block is provided with a side wall two five.

[0013] Further, the side surface of the side wall two five is provided with a side wall two three and a side wall two four, and the side wall two three and the side wall two four form a groove.

[0014] Further, the inner side of the hook is provided with a notch, and the notch is clamped with the groove formed by the side wall two three and the side wall two four when the inner rail and the outer rail are in the locked state.

[0015] The beneficial effects of the utility model are as follows:

[0016] 1. In the default state, the unlocking block and the hook of the inner and outer rail locking structure are clamped, and the sliding of the inner rail and the outer rail is prevented.

[0017] 2. After the external force is removed, the tension spring rebounds to drive the pressing block to reset and complete the locking.

[0018] 3. The side wall two five of the unlocking block is clamped with the hook as a protruding part, and the stability of the locking is improved. DRAWINGS

[0019] Figure 1 It is an explosion schematic view of the closing locking device of the sequential motion slide rail.

[0020] Figure 2 It is a structural schematic view of the pressing block.

[0021] Figure 3 It is a structural schematic view of the unlocking block.

[0022] Figure 4 It is a structural schematic view of the default state of the closing locking device of the sequential motion slide rail.

[0023] Figure 5 It is a structural schematic view of the unlocking state of the closing locking device of the sequential motion slide rail.

[0024] In the figure: 1, inner rail; 11, pressing block; 111, inner wall one one; 112, inner wall one two; 113, tension spring; 12, unlocking block; 121, side wall two one; 122, side wall two two; 123, side wall two three; 124, side wall two four; 125, side wall two five; 126, rivet; 2, middle rail; 3, outer rail; 31, inner and outer rail locking structure; 311, hook; 312, notch. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application will be described below with reference to the accompanying drawings.

[0026] In order to make the purpose, technical scheme and advantages of the present application more clear, the device proposed by the present application will be described in further detail below with reference to the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present application will be more clear. It should be noted that the drawings are greatly simplified and all use non-precise proportions, only to facilitate, clearly assist the purpose of explaining the embodiments of the present application. In order to make the purpose, features and advantages of the present application more obvious and easy to understand, please refer to the accompanying drawings. It should be noted that the structure, proportion, size and the like shown in the drawings of the present application are only used to cooperate with the content disclosed in the specification, so that those skilled in the art can understand and read, and are not used to limit the conditions of the present application. Embodiments, therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect and purpose that can be achieved by the present application, should still fall within the scope of the technical content disclosed by the present application.

[0027] Embodiments:

[0028] A closing and locking device of a sequential motion slide rail, as shown in Figure 1 , includes a slidingly fitted inner rail 1, middle rail 2 and outer rail 3. In the default state, the middle rail 2 and the inner rail 1 are located in the outer rail 3; in the unlocked state, the middle rail 2 and the inner rail 1 can slide out of the outer rail 3.

[0029] As shown in Figure 1 and Figure 2 , the end of the inner rail 1 is movably connected with the pressing block 11, and the pressing block 11 can reciprocate along the length direction of the inner rail 1. A tension spring 113 is arranged between the pressing block 11 and the inner rail 1, and the tension spring 113 rebounds to drive the pressing block 11 to reset when the external force applied to the pressing block 11 is removed. The middle part of the pressing block 11 is provided with a cavity, and the cavity of the pressing block 11 is provided with an inner wall one one 111 and an inclined inner wall one two 112. The inner wall one one 111 is located inside the cavity of the pressing block 11, and the inner wall one one 111 is parallel to the wide side of the pressing block 11; the inner wall one two 112 is located outside the cavity of the pressing block 11, and the inner wall one two 112 is inclined to the wide side of the pressing block 11.

[0030] As Figure 1 and Figure 3 shown, the end of the inner rail 1 is rotatably connected with the unlocking block 12 through the rivet 126, and the unlocking block 12 is located in the cavity of the pressing block 11. One side of the unlocking block 12 is provided with a side wall two one 121, which is tangent to the inner wall one one 111 when the inner rail 1 and the outer rail 3 are in the locked state; the unlocking block 12 is provided with a side wall two two 122, which is located on the opposite side of the side wall two one 121 and is tangent to the inner wall one two 112; when the pressing block 11 moves inward, the side wall two two 122 moves along the inner wall one two 112, driving the unlocking block 12 to rotate around the rivet 126. The top of the unlocking block 12 is provided with a bent side wall two five 125, which forms an outward protrusion, and the side of the side wall two five 125 is provided with a side wall two three 123 and a side wall two four 124, which form a rectangular groove.

[0031] As Figure 1 shown, the end of the outer rail 3 is provided with an inner-outer rail locking structure 31, which includes a hook 311, which is clamped with the unlocking block 12 in the default state, achieving the locking of the inner rail 1 and the outer rail 3. The inner side of the hook 311 is provided with a notch 312, which is clamped with the side wall two three 123 and the side wall two four 124 to form a groove when the inner rail 1 and the outer rail 3 are in the locked state, improving the stability of the clamping.

[0032] Specific working process:

[0033] As Figure 4 shown, in the initial default state, the unlocking block 12 and the hook 311 are clamped, and at this time the inner rail 1 and the outer rail 3 are locked.

[0034] As Figure 5 shown, press the pressing block 11, and the pressing block 11 moves inward along the X-axis direction, and the pressing block 11 drives the unlocking block 12 to rotate around the rivet 126, and the side wall two five 125 of the unlocking block 12 and the unlocking block 12 are separated from each other, at this time the unlocking is completed, and the inner rail 1 and its components are pulled out along the X-axis direction.

[0035] The technical features of the above-described embodiments can be combined arbitrarily, and in order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered as the scope of the present application.

[0036] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A closing locking device of a sequential motion slide rail, characterized in that: an inner rail, a middle rail and an outer rail are in sliding fit; an end of the inner rail is movably connected with a pressing block, a middle portion of the pressing block is provided with a cavity; an end of the inner rail is rotatably connected with an unlocking block, the unlocking block is located in the cavity of the pressing block, and the pressing block abuts against the unlocking block; an end of the outer rail is provided with an inner-outer rail locking structure, the inner-outer rail locking structure comprises a hook, and the unlocking block and the hook are in clamping connection when the inner rail and the outer rail are locked. An inner wall one and an inclined inner wall two are arranged in the cavity of the pressing block, the inner wall one is located at an inner side of the cavity of the pressing block, and the inclined inner wall two is located at an outer side of the cavity of the pressing block. A tension spring is arranged between the pressing block and the inner rail. A side wall two one is arranged on one side of the unlocking block, and the side wall two one is tangent to the inner wall one when the inner rail and the outer rail are in the locked state. A side wall two two is arranged on the unlocking block, the side wall two two is located at an opposite side of the side wall two one, and the side wall two two is tangent to the inclined inner wall two.

2. A closing locking device for a sequential motion slide rail according to claim 1, characterized in that: A top of the unlocking block is provided with a side wall two five.

3. A closing locking device for a sequential motion slide rail according to claim 2, characterized in that: A side surface of the side wall two five is provided with a side wall two three and a side wall two four, the side wall two three and the side wall two four form a groove, and the groove is clamped with the hook when the inner rail and the outer rail are in the locked state.

4. A closing locking device for a sequential motion slide rail according to claim 2, wherein: An inner side of the hook is provided with a notch, and the notch is clamped with the groove formed by the side wall two three and the side wall two four when the inner rail and the outer rail are in the locked state.

5. A closing locking device for a sequential motion slide rail according to claim 4, characterized in that: ​ 6. A closing locking device for a sequential motion slide rail according to claim 5, characterized in that: ​ 7. A closing locking device for a sequential motion slide rail according to claim 6, characterized in that: ​ 8. A closing locking device for a sequential motion slide rail according to claim 7, characterized in that: ​

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