Cross-shaped fixed adjustable inner support device for direct-buried distribution box

Abstract

The utility model provides a cross-shaped fixed adjustable inner support device for a directly-buried distribution box, and the device comprises two supporting frames which are connected through the middle parts and are perpendicular to each other. The supporting frame comprises a supporting rod, a screw, an ejector rod and a supporting head, one end of the supporting rod is connected with the supporting head, the other end of the supporting rod is provided with a screw hole matched with the screw, one end of the screw is located in the screw hole, and the other end is provided with an adjusting portion. One end of the push rod is rotatably connected with the adjusting part, and the other end is connected with the support head. The cross-shaped fixing adjustable inner supporting device for the direct-buried distribution box can be suitable for distribution boxes of different sizes, the inner portion of the distribution box is supported by adjusting the length, the problem of deformation of the distribution box in the pre-burying process is effectively solved, the manufacturing cost can be saved through sectional type assembly, and the pre-burying work efficiency of the distribution box is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, and in particular relates to a cross-fixed and adjustable inner support device for a directly buried distribution box. Background Art

[0002] During the construction process, it is necessary to pre-install the equipment of the building power system to provide the installation space and location of the subsequent power equipment. During the installation of the power equipment, due to the wiring requirements, pre-embedded work will be carried out on the wall, including wire boxes, casings, strong and weak distribution boxes and other related facilities, which will have a great impact on the appearance of the wall. The existing distribution boxes are divided into traditional distribution boxes and direct-buried distribution boxes. The construction process of traditional distribution boxes is relatively complicated and cumbersome, with low efficiency, which is easy to cause a lot of labor and material waste, and the repaired wall and the structural wall have a large color difference, which cannot meet the requirements of free plastering. The direct-buried distribution box is directly embedded in the wall and has a high degree of integration with the wall. However, due to the pre-embedded construction, the internal space of the box is large during construction. It is easy to deform under the extrusion of concrete during the pouring process, and internal support is required. The existing internal support technology generally uses wooden squares or hard foam to fill the space inside the distribution box to protect the box from deformation. They are all disposable. After the mold is removed and the box is cleaned, a large amount of garbage will be generated, which not only increases the construction cost, but also increases the workload of garbage disposal. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a cross-fixed adjustable inner support device for a directly buried distribution box, which supports the internal space of different distribution boxes by adjusting the length of the support frame through a support frame composed of a cross-shaped structure.

[0004] A cross-fixed adjustable inner support device for a direct-buried distribution box is composed of two support frames, which are vertically connected in the middle to form a cross-shaped structure. The support frame is composed of a support rod, a screw rod, a push rod and a support head. A support head is connected to one end of the support rod, and a screw hole is opened at the other end. The screw hole matches the screw rod. A threaded connection is formed inside the screw hole at one end of the screw rod, and an adjustment part is installed at the other end of the screw rod. The screw rod can be rotated through the adjustment part. One end of the push rod is connected to the adjustment part, and the adjustment part is rotatably connected to the push rod. At the same time, a support head is connected to the other end of the push rod. The support head connected to the support rod and the push rod is used to support the inner surface of the distribution box. The screw rod can be rotated by rotating the adjustment part, thereby adjusting the overall length of the support frame to adapt to different distribution boxes.

[0005] In order to improve the supporting effect of the support head, the support head is composed of a top plate and side plates. The side plates are vertically connected to both sides of the top plate, and the top rod is vertically connected to the middle of the top plate. The side plates can provide lateral auxiliary supporting effect.

[0006] In order to provide support for the back of the distribution box, a first cross bar is arranged on the support rod, and a second cross bar is arranged on the top rod. The first cross bar and the second cross bar are respectively perpendicular to the support rod and the top rod, and the directions of the first cross bar and the second cross bar are perpendicular to the side panels. In this way, the back of the distribution box can be supported by the ends of the first cross bar and the second cross bar.

[0007] As a connection method between the screw and the push rod, a movable hole is opened on the outer end of the adjusting part of the screw, and a movable shaft is set on the end of the push rod connected to the screw. The movable shaft is inserted into the movable hole so that the movable shaft can rotate freely in the movable hole, thereby realizing the movable connection between the screw and the push rod.

[0008] In order to facilitate the adaptation to distribution boxes with different box depths, the support heads are arranged to be detachably connected, so that the two support heads are respectively connected to the support rod and the top rod, and different distribution boxes can be internally supported by replacing the support heads.

[0009] In order to facilitate the operation of the adjustment part, the axial cross-section of the adjustment part is hexagonal, which is convenient for rotation using a wrench.

[0010] The cross-fixed adjustable inner support device for the direct-buried distribution box provided by the utility model can be suitable for distribution boxes of different sizes. The internal support of the distribution box can be adjusted by adjusting the length, which effectively solves the problem of deformation of the distribution box during the pre-buried process. The segmented assembly can save manufacturing costs and greatly improve the work efficiency of the pre-buried distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the support frame structure of Example 1;

[0013] Figure 2 It is an exploded view of the support frame structure of the first embodiment;

[0014] Figure 3 It is a cross-sectional view of the connection structure of the support rod, screw rod and top rod;

[0015] Figure 4 It is a schematic diagram of the overall structure of the first embodiment;

[0016] Figure 5 This is a schematic diagram of the use status of the second embodiment;

[0017] As shown in the figure: 1-support frame; 2-support rod; 3-screw rod; 4-top rod; 5-support head; 6-screw hole; 7-adjustment part; 8-top plate; 9-side plate; 10-first cross bar; 11-second cross bar; 12-movable hole; 13-movable shaft. DETAILED DESCRIPTION

[0018] To further illustrate the concept of the present invention, the following will further illustrate the specific implementation of the present invention in conjunction with the accompanying drawings: Embodiment 1

[0019] A cross-fixed adjustable inner support device for a direct buried distribution box is composed of two support frames 1, wherein the support frame 1 includes a support rod 2, a screw rod 3, a top rod 4 and a support head 5. Figure 1 As shown. The support head 5 is composed of three steel plates, one steel block is used as the top plate 8, and the other two steel plates are vertically welded on the opposite sides of the top plate 8 to form side plates 9. A galvanized steel pipe is used to make the support rod 2 and the top rod 4. A support head 5 is welded to one end of the support rod 2, and an internal thread is opened on the inner side of the other end to form a screw hole 6. A threaded rod with an external thread matching the screw hole 6 is used as the screw rod 3, and a nut is welded to one end of the screw rod 3. The inner thread is removed to form a movable hole 12, and the nut is made into a hexagonal adjustment part 7. A support head 5 is welded to one end of the top rod 4, and a steel pipe with an outer diameter consistent with the inner diameter of the movable hole 12 of the adjustment part 7 is used as the movable shaft 13, and the movable shaft 13 is welded to the other end of the top rod 4. Then take a galvanized steel pipe and weld it vertically to the middle part of the top rod 4 and the support rod 2 to form a second cross bar 11 and a first cross bar 10 respectively. When welding, make the first cross bar 10 and the second cross bar 11 perpendicular to the side plate 9 of the support head 5 connected to the support rod 2 and the top rod 4 respectively. Figure 2 shown.

[0020] After the production is completed, assemble the support frame 1, insert the threaded part of the screw rod 3 into the screw hole 6 of the support rod 2, and then insert the movable shaft 13 of the top rod 4 into the movable hole 12 of the adjusting part 7 on the screw rod 3, as shown in FIG. Figure 3 As shown, the assembly of one support frame 1 is completed. After assembling two support frames 1, the support rods 2 of the two support frames 1 are vertically welded together to obtain a complete internal support device, such as Figure 4 shown. Embodiment 2

[0021] The difference from the first embodiment is that the connection method between the support head 5 and the support rod 2 and the top rod 4 in the second embodiment is not welding. A section of internal threaded pipe is welded in the middle of the support head 5, and then an external thread is set on the end of the support head 5 where the support rod 2 and the top rod 4 are connected. The support rod 2 and the top rod 4 are connected to the support head 5 through threads, thereby realizing a detachable connection of the support head 5.

[0022] The following is an explanation of the usage of the second embodiment. After the distribution box is assembled in place, a suitable support head 5 is selected according to the size and thickness of the distribution box, so that the width of the support head 5 is consistent with the thickness of the distribution box, so that when supporting internally, the side panels 9 of the support head 5 can abut against the back and front frame of the distribution box, and then the support head 5 is installed on the support rod 2 and the top rod 4, and the screw rod 3 is rotated to shrink the length of the support frame 1 so that the internal support device can be placed inside the distribution box. After the internal support device is placed inside the distribution box, the support head 5 is adjusted so that the internal side panels 9 of the support head 5 are in contact with the back of the distribution box, and then the adjustment part 7 is twisted with a wrench, and the screw rod 3 is rotated to increase the length of the support frame 1 so that the top panel 8 of the support head 5 is in contact with the four sides of the upper, lower, left and right sides of the distribution box respectively, and the internal support work is completed. Figure 5 As shown, the pouring of concrete can begin. After pouring the concrete, since the four sides of the distribution box are supported by the support head 5, the deformation of the distribution box can be effectively prevented, and the back of the distribution box is supported by the side plate 9 and the first cross bar 10 and the second cross bar 11 of the support head 5, which further prevents the distribution box from deformation. After the concrete is dry, the adjustment part 7 is turned to shorten the length of the support frame 1, and the inner support device can be removed for reuse.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, various changes and variations are possible. Any modifications, equivalent substitutions, improvements, etc. made using the present invention should be included in the protection scope of the present invention.

Claims

1. A cross-fixed and adjustable inner support device for a direct-buried distribution box, characterized in that: The invention comprises two support frames (1), which are connected in the middle and are perpendicular to each other; the support frame (1) comprises a support rod (2), a screw rod (3), a push rod (4) and a support head (5); one end of the support rod (2) is connected to the support head (5), and the other end is provided with a screw hole (6) matching the screw rod (3); one end of the screw rod (3) is threadedly connected to the inside of the screw hole (6), and the other end is provided with an adjustment portion (7); one end of the push rod (4) is rotatably connected to the adjustment portion (7), and the other end is connected to the support head (5).

2. The cross-fixed adjustable inner support device for a direct-buried distribution box according to claim 1 is characterized in that: The support head (5) comprises a top plate (8) and side plates (9), wherein the side plates (9) are vertically connected to both sides of the top plate (8), and the top rod (4) is vertically connected to the middle of the top plate (8).

3. The cross-fixed adjustable inner support device for a direct-buried distribution box according to claim 2 is characterized in that: The support rod (2) is provided with a first cross bar (10) vertically connected thereto, and the top rod (4) is provided with a second cross bar (11) vertically connected thereto, wherein the first cross bar (10) and the second cross bar (11) are perpendicular to the side plate (9).

4. The cross-fixed adjustable inner support device for a direct-buried distribution box according to claim 3 is characterized in that: The outer end of the adjusting portion (7) of the screw rod (3) is provided with a movable hole (12), and the end of the push rod (4) connected to the screw rod (3) is provided with a movable shaft (13), and the movable shaft (13) is inserted into the movable hole (12) and can rotate freely.

5. The cross-fixed adjustable inner support device for a direct-buried distribution box according to claim 4 is characterized in that: The two support heads (5) are detachably connected to the support rod (2) and the top rod (4), respectively.

6. The cross-fixed adjustable inner support device for a direct-buried distribution box according to claim 5 is characterized in that: The axial cross section of the adjusting portion (7) is hexagonal.

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