Stretchable pre-embedded wire box

Abstract

The utility model relates to the technical field of pre-embedded wire boxes, and discloses a stretchable pre-embedded wire box which comprises a box body and an inner shell, the outer surface of the inner shell is in sliding connection with the inner wall of the box body, two positioning grooves are formed in the outer surface of the inner shell, the inner wall of each positioning groove is fixedly connected with a limiting piece, and the limiting pieces are arranged in the positioning grooves. And sliding grooves I are formed in the side surfaces, close to each other, of the limiting pieces. According to the stretchable pre-embedded wire box, the limiting pieces are driven to move synchronously when the inner shell is promoted to move by arranging the limiting pieces, the elastic steel sheets move along the outer surfaces of the limiting strips, so that the elastic steel sheets are shrunk and rebounded, and the stretching length of the inner shell is limited; and a sliding block drives a jacking and fixing block to move towards the interior of the inner shell, so that the jacking and fixing block makes contact with the inner protruding part of an elastic steel sheet, the elastic steel sheet cannot rebound, the position of the inner shell is locked, and therefore the effects that the inner shell is prevented from moving due to external impact, and stability is improved are achieved.

Description

Technical Field

[0001] This application relates to the technical field of embedded wire boxes, and specifically provides a stretchable embedded wire box. Background Art

[0002] In construction projects or various decoration constructions, embedded wire boxes are essential electrical auxiliary tools. There are certain differences between embedded wire boxes and junction boxes. Junction boxes are mainly used for the installation of various switches, sockets, and other electrical wiring panels. To keep the building surface clean and beautiful, embedded wire boxes generally need to be installed by embedding. It can play the roles of connecting wires, transitioning various electrical circuits, and protecting the safety of the circuits.

[0003] The existing patent (publication number: CN219322021U) discloses a stretchable embedded wire box, which relates to the technical field of construction engineering and solves the technical problems of high cost, poor versatility, and inconvenient use caused by using an elevation ring for elevation in the prior art. The utility model includes an outer box body and a telescopic box body, and the outer box body and the telescopic box body are connected by a telescopic structure. The telescopic structure includes an elastic locking card and a toothed rail. The elastic locking card is arranged on the outer wall of the telescopic box body, and the toothed rail is arranged on the inner wall of the outer box body. The toothed rail has a plurality of tooth blocks that are telescopically matched with the elastic locking card, and the elastic locking card retracts and locks along the toothed rail. The utility model can freely select and stretch to adjust the depth of the wire box according to the actual situation, with a simple overall structure, strong operability and versatility, and low cost, and has strong practicability.

[0004] For the above-mentioned stretchable embedded wire box, the depth of the wire box is adjusted by stretching through the elastic locking card retracting and locking along the toothed rail. However, the locking effect of this device is not good and the stability is poor. When the telescopic box body is externally collided, it will drive the elastic locking card to move into the inner part of the outer box body, resulting in a change in the stretched length of the wire box. Therefore, it needs to be optimized and improved. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, this application provides a stretchable embedded wire box, which has the advantages of being convenient to lock the position of the wire box after stretching, preventing the stretched length of the wire box from changing due to external factors, and improving the limit stability, etc., and solves the problems that the locking effect is not good and the stability is poor after adjusting the depth of the wire box, and it is easily affected by external factors, resulting in a change in the stretched length of the wire box, which greatly affects the accuracy of the wire box embedding.

[0006] To achieve the above object, the present application provides the following technical solution: A stretchable embedded wire box, comprising a box body and an inner shell, wherein the outer surface of the inner shell is slidably connected to the inner wall of the box body, two positioning grooves are provided on the outer surface of the inner shell, a limiting member is fixedly connected to the inner wall of each positioning groove, an elastic steel sheet is installed inside each limiting member, a first sliding groove is provided on one side surface of each limiting member close to each other, and a slider is slidably connected to the inner wall of each first sliding groove.

[0007] Through the above solution, since the elastic locking card retracts and locks itself back and forth along the tooth rail in this solution, the depth of the wire box can be adjusted by stretching and selecting. However, the locking effect of this device is not good and the stability is poor. When the telescopic box body is collided by the outside world, it will drive the elastic locking card to move inward into the outer box body, resulting in a change in the stretched length of the wire box. Therefore, it needs to be optimized and improved. By setting the positioning groove to limit the position of the limiting member, when the inner shell moves outward, it can drive the limiting member to move synchronously. By installing the elastic steel sheet inside the limiting member, the telescopic direction and position of the elastic steel sheet can be restricted. The movement track of the slider is restricted by the first sliding groove, and the position of the slider is restricted.

[0008] Further, a fixing block is fixedly connected to one side surface of each slider away from each other, and the outer surface of each fixing block is in contact with the inner wall of the corresponding elastic steel sheet.

[0009] Through the above solution, the slider drives the fixing block to move inward into the inner shell, so that the fixing block presses tightly against the elastic steel sheet, making the elastic steel sheet unable to contract.

[0010] Further, two limiting grooves and a second sliding groove are provided on the inner wall of the box body, and the outer surface of each limiting member is slidably connected to the inner wall of the corresponding limiting groove.

[0011] Through the above solution, the limiting groove restricts the movement track of the limiting member and restricts the extended length of the inner shell. Through the cooperation of the limiting groove and the limiting member, the extended part of the inner shell can be kept balanced.

[0012] Further, two limiting strips are fixedly connected to the inner top and inner bottom walls of each limiting groove, and the outer surface of each limiting strip is in sliding contact with the outer surface of the corresponding elastic steel sheet.

[0013] Through the above solution, the position of the limiting strip is restricted by the limiting groove. The elastic steel sheet is driven to move along the limiting groove by the limiting member. When the protruding part of the outer surface of the elastic steel sheet contacts the protruding part of the limiting strip, the elastic steel sheet contracts inward. When the protruding part of the outer surface of the elastic steel sheet reaches the groove of the limiting strip, the elastic steel sheet rebounds and fits with the groove of the limiting strip.

[0014] Further, a sliding bar is slidably connected to the inner wall of each second sliding groove, and one side surface of each sliding bar close to each other is fixedly connected to the upper surface and the bottom surface of the inner shell.

[0015] Through the above solution, the movement track of the sliding bar is restricted by the second sliding groove, improving the stability when the inner shell extends out.

[0016] Further, two bolt positioning members are fixedly connected to the inner wall of the inner shell, and equally spaced activity grooves are formed on the outer surface of the box body.

[0017] Through the above solution, the bolt positioning members provide connection points for connecting a power socket or a power switch, and two activity grooves are provided on the upper surface, the bottom surface and both side surfaces of the box body.

[0018] Further, a third sliding groove is formed on the inner wall of each activity groove, and a sliding plate is slidably connected to the inner wall of each third sliding groove.

[0019] Through the above solution, the third sliding groove is rectangular in shape, restricting the movement direction of the sliding plate and providing a supporting force for the corresponding sliding plate.

[0020] Further, a fixing cylinder is fixedly connected to the inside of each sliding plate, and a locking ring is threadedly connected to the inside of each fixing cylinder.

[0021] Through the above solution, by inserting the outer surface of the threading pipe into the inside of the locking ring, and a force-relieving groove is formed on the surface of each locking ring, when the locking ring is rotated into the inside of the fixing cylinder, the threading pipe can be locked, improving the stability between the wire box and the threading pipe.

[0022] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0023] For this stretchable embedded wire box, by setting the limiting member, when the inner shell moves, it drives the limiting member to move synchronously. The elastic steel sheet moves along the outer surface of the limiting strip, causing the elastic steel sheet to contract and rebound, restricting the stretching length of the inner shell, achieving the effect of precisely adjusting the stretching length of the inner shell. The slider drives the top fixing block to move into the inner shell, making the top fixing block contact the protruding part inside the elastic steel sheet, preventing the elastic steel sheet from rebounding, realizing the locking of the position of the inner shell, thereby achieving the effects of preventing the inner shell from moving due to external impact and improving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is the overall three-dimensional structure diagram of the present application;

[0025] Figure 2 is the internal structure diagram of the inner shell of the present application;

[0026] Figure 3Internal structure diagram of the box body of the present application;

[0027] Figure 4 Internal structure diagram of the limiting member of the present application.

[0028] In the figure:

[0029] 1. Box body; 2. Inner shell; 3. Positioning groove; 4. Limiting member; 5. Elastic steel sheet; 6. First sliding groove; 7. Slide block; 8. Top fixing block; 9. Limiting strip; 10. Second sliding groove; 11. Sliding strip; 12. Moving groove; 13. Third sliding groove; 14. Bolt positioning member; 15. Sliding plate; 16. Fixed cylinder; 17. Locking ring; 18. Limiting groove. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0031] Please refer to Figure 2 , Figure 3 and Figure 4 , a stretchable embedded wire box in this embodiment, a stretchable embedded wire box includes a box body 1 and an inner shell 2. The outer surface of the inner shell 2 is slidably connected to the inner wall of the box body 1. Two positioning grooves 3 are opened on the outer surface of the inner shell 2. A limiting member 4 is fixedly connected to the inner wall of each positioning groove 3. An elastic steel sheet 5 is installed inside each limiting member 4. A first sliding groove 6 is opened on one side surface of each limiting member 4 close to each other. A slide block 7 is slidably connected to the inner wall of each first sliding groove 6.

[0032] Please refer to Figure 2 , Figure 3 and Figure 4 , a top fixing block 8 is fixedly connected to one side surface of each slide block 7 away from each other. The outer surface of each top fixing block 8 is in contact with the inner wall of the corresponding elastic steel sheet 5. By driving the slide block 7 to move inwardly into the inner shell 2, the top fixing block 8 presses tightly against the elastic steel sheet 5, so that the elastic steel sheet 5 cannot contract.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , two limiting grooves 18 and a second sliding groove 10 are opened on the inner wall of the box body 1. The outer surface of each limiting member 4 is slidably connected to the inner wall of the corresponding limiting groove 18. The limiting groove 18 restricts the movement track of the limiting member 4 and restricts the extending length of the inner shell 2. By the cooperation of the limiting groove 18 and the limiting member 4, the extended part of the inner shell 2 can be kept balanced.

[0034] Please refer to Figure 3 and Figure 4 As shown in, two limiting bars 9 are fixedly connected to the inner top and inner bottom wall of each limiting groove 18. The outer surface of each limiting bar 9 is in sliding contact with the outer surface of the corresponding elastic steel sheet 5. The position of the limiting bar 9 is restricted by the limiting groove 18, and the elastic steel sheet 5 is driven by the limiting member 4 to move along the limiting groove 18. When the protruding part of the outer surface of the elastic steel sheet 5 contacts the protruding part of the limiting bar 9, the elastic steel sheet 5 contracts inward. When the protruding part of the outer surface of the elastic steel sheet 5 reaches the groove of the limiting bar 9, the elastic steel sheet 5 rebounds and fits with the groove of the limiting bar 9.

[0035] Please refer to Figure 2 and Figure 3 As shown in, a sliding bar 11 is slidably connected to the inner wall of each second sliding groove 10. The mutually adjacent side surfaces of each sliding bar 11 are fixedly connected to the upper surface and the bottom surface of the inner shell 2. The movement track of the sliding bar 11 is restricted by the second sliding groove 10, improving the stability when the inner shell 2 extends out.

[0036] Please refer to Figure 1 , Figure 2 and Figure 3 As shown in, two bolt positioning members 14 are fixedly connected to the inner wall of the inner shell 2. An activity groove 12 arranged at equal intervals is formed on the outer surface of the box body 1. The bolt positioning member 14 provides a connection place for connecting a power socket or a power switch. Two activity grooves 12 are arranged on the upper surface, the bottom surface and the two side surfaces of the box body 1.

[0037] Please refer to Figure 1 , Figure 2 and Figure 3 As shown in, a third sliding groove 13 is formed on the inner wall of each activity groove 12. A sliding plate 15 is slidably connected to the inner wall of each third sliding groove 13. The third sliding groove 13 is rectangular in shape. The third sliding groove 13 restricts the movement direction of the sliding plate 15 and provides a supporting force for the corresponding sliding plate 15.

[0038] Please refer to Figure 2 As shown in, a fixed cylinder 16 is fixedly connected to the inside of each sliding plate 15. A locking ring 17 is threadedly connected to the inside of each fixed cylinder 16. By inserting the outer surface of the wire conduit into the inside of the locking ring 17, a force relief groove is formed on the surface of each locking ring 17. When the locking ring 17 is rotated into the inside of the fixed cylinder 16, the wire conduit can be locked, improving the stability between the wire box and the wire conduit.

[0039] A stretchable embedded wire box in the present embodiment is provided with a limit piece 4, so that the limit piece 4 is driven to move synchronously when the inner shell 2 moves, and the elastic steel sheet 5 is moved along the outer surface of the limit strip 9 to make the elastic steel sheet 5 contract and rebound, thereby limiting the stretching length of the inner shell 2, so as to achieve the effect of accurately adjusting the stretching length of the inner shell 2, and the slider 7 drives the top fixing block 8 to move into the inner shell 2, so that the top fixing block 8 contacts the protruding part of the elastic steel sheet 5, so that the elastic steel sheet 5 cannot rebound, thereby locking the position of the inner shell 2, thereby preventing the inner shell 2 from moving due to external impact and improving the stability.

[0040] It should be noted that two movable grooves are provided on the inner wall of the inner shell 2 , and the position of each movable groove corresponds to the corresponding sliding groove 6 .

[0041] The working principle of the above embodiment is as follows: first, the threading tube is inserted into the locking ring 17, and the locking ring 17 is rotated to enter the fixed tube 16 and lock the threading tube, so that the threading tube is firmly connected to the box body 1, and the inner shell 2 is stretched and the corresponding limit piece 4 is driven to move along the limit groove 18. At the same time, the limit piece 4 drives the elastic steel sheet 5 to move along the limit strip 9, so that when the protruding part of the outer surface of the elastic steel sheet 5 contacts the protruding part of the limit strip 9, the elastic steel sheet 5 contracts inwardly. When the protruding part of the outer surface of the elastic steel sheet 5 reaches the groove of the limit strip 9, the elastic steel sheet 5 rebounds and fits the groove of the limit strip 9, so as to accurately adjust the extension length of the inner shell 2 until the inner shell 2 is stretched to a suitable position, and the top fixing block 8 is driven to move by moving toward the inner direction of the inner shell 2, and the top fixing block 8 is contacted with the protruding part of the inner wall of the elastic steel sheet 5, so that the elastic steel sheet 5 cannot shrink, thereby locking the position of the inner shell 2, preventing the inner shell 2 from being moved by external force and improving stability.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A stretchable embedded wire box, comprising a box body (1) and an inner shell (2), characterized in that: The outer surface of the inner shell (2) is slidably connected to the inner wall of the box body (1). Two positioning grooves (3) are formed on the outer surface of the inner shell (2). A limiting member (4) is fixedly connected to the inner wall of each positioning groove (3). An elastic steel sheet (5) is installed inside each limiting member (4). A first sliding groove (6) is formed on one side surface of each limiting member (4) close to each other. A slider (7) is slidably connected to the inner wall of each first sliding groove (6).

2. The stretchable embedded wire box according to claim 1, wherein: A top fixing block (8) is fixedly connected to one side surface of each slider (7) away from each other. The outer surface of each top fixing block (8) is in contact with the inner wall of the corresponding elastic steel sheet (5).

3. The stretchable embedded wire box according to claim 1, wherein: Two limiting grooves (18) and a second sliding groove (10) are formed on the inner wall of the box body (1). The outer surface of each limiting member (4) is slidably connected to the inner wall of the corresponding limiting groove (18).

4. The stretchable embedded wire box according to claim 3, wherein: Two limiting strips (9) are fixedly connected to the inner top and inner bottom walls of each limiting groove (18). The outer surface of each limiting strip (9) is in sliding contact with the outer surface of the corresponding elastic steel sheet (5).

5. The stretchable embedded wire box according to claim 3, wherein: A sliding strip (11) is slidably connected to the inner wall of each second sliding groove (10). One side surface of each sliding strip (11) close to each other is fixedly connected to the upper surface and the bottom surface of the inner shell (2).

6. The stretchable embedded wire box according to claim 1, wherein: Two bolt positioning members (14) are fixedly connected to the inner wall of the inner shell (2). An activity groove (12) arranged at equal intervals is formed on the outer surface of the box body (1).

7. The stretchable embedded wire box according to claim 6, wherein: A third sliding groove (13) is formed on the inner wall of each activity groove (12). A sliding plate (15) is slidably connected to the inner wall of each third sliding groove (13).

8. The stretchable embedded wire box according to claim 7, wherein: A fixing cylinder (16) is fixedly connected to the inside of each sliding plate (15). A locking ring (17) is threadedly connected to the inside of each fixing cylinder (16).

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