Foundation pit inner supporting device for transformer substation construction
By designing a foundation pit support device for substation construction, the combination of oblique braces and columns, retaining plates and top rods is used to solve the problem of unreinforced reinforcement caused by the lack of oblique braces in the existing support devices, the stability and flexibility of the support devices are achieved, and economic losses and casualties are avoided.
Patent Information
- Application Number
- CN202421799004.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-29
- Publication Date
- 2025-05-20
- Estimated Expiration
- 2034-07-29
AI Technical Summary
The existing support devices lack oblique braces when used, and require additional assembly and reinforcement, resulting in poor reinforcement, easy to pour or deform, resulting in economic losses or casualties.
A support device in the foundation pit for substation construction construction was designed, which was reinforced by the action of oblique braces, and the stability and flexibility of the support device were achieved through the combination of columns, retaining plates and top rods.
The support device realizes reinforcement without additional assembly through the adjustment of the oblique brace and the combination of columns, retaining plates and top rods, ensuring the stability of the support device, avoiding pouring or deformation, and reducing the risk of economic losses and casualties.
Smart Images

Figure CN222886862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of supporting devices, specifically a supporting device in a foundation pit for substation construction. Background Technology
[0002] A substation is a place in the power system where voltage and current are exchanged, electric energy is received and distributed. During the construction of a substation, construction workers need to dig a foundation pit, build a foundation or lay cables in the pit. After the pit is dug, support and protection are often required to prevent deformation of the pit or affect subsequent construction or cause harm to construction workers. With the development of the times, wooden support devices have gradually been replaced by steel support devices with higher stability and better effects.
[0003] Some existing support devices lack diagonal braces when in use and require additional assembly reinforcement or no reinforcement, which may lead to collapse or deformation due to poor reinforcement, resulting in economic losses or casualties, and need to be improved. Contents of utility model
[0004] The purpose of the utility model is to provide a foundation pit support device for substation construction to solve the problems raised in the above background technology.
[0005] To achieve the above purpose, the utility model provides the following technical solutions: a support device in the foundation pit for substation construction, wherein the retaining plate is movably plugged into one side of the column, the diagonal brace is rotatably connected to one side of the column, the top rod is movably plugged into one side of the column, the column includes side column one, side column two, middle column and reinforced middle column, two diagonal brace mounting plates are respectively arranged in parallel on one side of the middle column and the reinforced middle column, the diagonal brace mounting plate is fixedly connected to one side of the reinforced middle column, the diagonal brace mounting plate is fixedly connected to one side of the middle column, the diagonal brace connecting rod is rotatably connected to the reserved hole on one side of the diagonal brace mounting plate, the inner wall of the diagonal brace connecting plate is fixedly connected to one side of the diagonal brace connecting rod, the diagonal brace connecting plate is placed on one side of the two diagonal brace mounting plates, the brace rod two is fixedly connected to one side of the diagonal brace connecting plate, and the brace rod one is bolted to one side of the brace rod two.
[0006] As a further solution of the utility model: retaining plate installation grooves are respectively arranged inside the side column 1, the side column 2, the middle column and the reinforced middle column.
[0007] As a further solution of the utility model: the top rod mounting block is fixedly connected to one side of the reinforced middle column, the top rod mounting block and one side of the reinforced middle column form a card block mounting groove, and one side of the top rod mounting block is provided with a connecting rod mounting groove.
[0008] As a further solution of the present utility model: The ejector rod includes an ejector rod chuck, an ejector rod connecting rod, a second ejector rod and a first ejector rod. The ejector rod chuck is detachably connected to one side of the chuck mounting groove, the ejector rod connecting rod is detachably connected to one side of the connecting rod mounting groove, the ejector rod chuck is fixedly connected to one side of the ejector rod connecting rod, the first ejector rod is fixedly connected to one side of the ejector rod connecting rod, the second ejector rod is fixedly connected to one side of the ejector rod connecting rod, one side of the first ejector rod is threadedly connected to one side of the second ejector rod, and the second ejector rod extends into the first ejector rod.
[0009] Compared with the prior art, the beneficial effects of the present utility model are:
[0010] 1. For this support device, through the action of the diagonal brace, it can achieve diagonal brace reinforcement with only simple adjustment without additional assembly, and can also freely adjust the length and angle, making the support device more stable during use after installation and not prone to tipping or deformation, thus avoiding economic losses and casualties.
[0011] 2. For this support device, through the actions of the column, retaining plate and ejector rod, the entire set of support device can be disassembled and assembled simply, making it more convenient during assembly and transportation.
[0012] 3. For this support device, through the actions of the ejector rod and the ejector rod mounting block in the column, the installation of the ejector rod can be made more convenient and fast, saving the assembly time and reducing the labor output. The telescopic function of the ejector rod can make transportation more convenient and also improve the usability during assembly. Description of the Drawings
[0013] Figure 1 It is a schematic diagram of the overall assembly structure of an in-pit support device for substation construction.
[0014] Figure 2 It is a schematic diagram of the partial assembly structure of an in-pit support device for substation construction.
[0015] Figure 3 It is a schematic diagram of the column structure in an in-pit support device for substation construction.
[0016] Figure 4 It is a schematic diagram of the ejector rod structure in an in-pit support device for substation construction.
[0017] Figure 5 It is a schematic diagram of the diagonal brace structure in an in-pit support device for substation construction.
[0018] In the figure: 1. Column; 101. First side column; 102. Second side column; 103. Middle column; 104. Reinforced middle column; 105. Jack mounting block; 106. Diagonal brace mounting plate; 2. Retaining plate; 3. Diagonal brace; 301. First strut; 302. Second strut; 303. Diagonal brace connecting rod; 304. Diagonal brace connecting plate; 4. Jack; 401. Jack clamping block; 402. Jack connecting rod; 403. Second jack; 404. First jack. Detailed implementation manner
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] Please refer to Figures 1 to 5 , in the embodiment of the present invention, a foundation pit internal support device for substation construction includes a column 1, a retaining plate 2 is movably inserted into the inner side of the column 1, a diagonal brace 3 is rotatably connected to the inner side of the column 1, and a jack 4 is movably inserted into the inner side of the column 1.
[0021] The column 1 includes a first side column 101, a second side column 102, a middle column 103 and a reinforced middle column 104. Two diagonal brace mounting plates 106 are respectively arranged in parallel on the front sides of the middle column 103 and the reinforced middle column 104. The diagonal brace mounting plate 106 is fixedly connected to the front side of the reinforced middle column 104, and the diagonal brace mounting plate 106 is fixedly connected to the front side of the middle column 103. The diagonal brace connecting rod 303 is rotatably connected to the reserved hole in the diagonal brace mounting plate 106. The inner wall of the diagonal brace connecting plate 304 is fixedly connected to the outer wall of the diagonal brace connecting rod 303. The diagonal brace connecting plate 304 is placed between the two diagonal brace mounting plates 106. The second strut 302 is fixedly connected to the lower side of the diagonal brace connecting plate 304. The first strut 301 is bolted to the outside of the second strut 302. During use, after placing the middle column 103 or the reinforced middle column 103 in the designated position, the diagonal brace connecting rod 303 on the diagonal brace connecting plate 304 in the diagonal brace 3 rotates in the diagonal brace mounting plate 106 to adjust the angle of the diagonal brace 3. After the angle adjustment is completed, rotate the first strut 301 outside the second strut 302 to adjust the length through threaded connection until it contacts the bottom of the foundation pit to achieve the support effect.
[0022] Retaining plate installation grooves are respectively arranged inside the first side column 101, the second side column 102, the middle column 103 and the reinforced middle column 104. The jack mounting block 105 is fixedly connected to the front side of the reinforced middle column 104. A clamping block installation groove is formed between the jack mounting block 105 and the reinforced middle column 104. The jack mounting block 105 is provided with a connecting rod installation groove.
[0023] The ejector rod 4 includes an ejector rod clamping block 401, an ejector rod connecting rod 402, a second ejector rod 403, and a first ejector rod 404. The right side of the first ejector rod 404 is threadedly connected to the left side of the second ejector rod 403. The second ejector rod 403 extends into the first ejector rod 404. The left side of the first ejector rod 404 is fixedly connected to the ejector rod connecting rod 402. The left side of the ejector rod connecting rod 402 is fixedly connected to the ejector rod clamping block 401. The right side of the second ejector rod 403 is fixedly connected to the ejector rod connecting rod 402. The right side of the ejector rod connecting rod 402 is connected to the ejector rod clamping block 401. The ejector rod clamping block 401 is detachably connected to the clamping block installation groove, and the ejector rod connecting rod 402 is detachably connected to the connecting rod installation groove. During use, according to the distance between the two installed reinforcing middle columns 104, the second ejector rod 403 and the first ejector rod 404 are rotated in opposite directions for length adjustment. After the adjustment is completed, the ejector rod clamping block 401 is inserted into the clamping block installation groove, and the ejector rod connecting rod 402 is inserted into the connecting rod installation groove for enhanced support and protection.
[0024] The working principle of the present utility model is as follows: When foundation pit support and protection are required during the construction of a substation, the first side column 101, the second side column 102, the middle column 103, and the reinforcing middle column 104 are assembled with the retaining plate 2. First, two retaining plates 2 are respectively inserted into the retaining plate installation grooves of the first side column 101. Then, one side of one of the retaining plates 2 that is not inserted into the first side column 101 is inserted into the retaining plate installation groove on one side of the middle column 103, and one side of the other retaining plate 2 that is not inserted into the first side column 101 is inserted into the retaining plate installation groove on one side of the reinforcing middle column 104. Again, two retaining plates 2 are taken. One of the retaining plates 2 is inserted into the retaining plate installation groove of the middle column 103 where the retaining plate 2 has not been inserted and this retaining plate 2 is inserted into one of the retaining plate installation grooves of the second side column 102. The other retaining plate 2 is inserted into the retaining plate installation groove of the reinforcing middle column 104 where the retaining plate 2 has not been inserted and this retaining plate 2 is inserted into one of the retaining plate installation grooves of the other second side column 102. Taking the diagonal of the two second side columns 102 as the mirror reference line, the remaining retaining plates 2, the middle column 103, the reinforcing middle column 104, and the first side column 101 are sequentially installed and spliced. After the installation is completed, the angle of the diagonal brace 3 is adjusted by rotating the diagonal brace connecting rod 303 on the diagonal brace connecting plate 304 of the diagonal brace 3 within the diagonal brace installation plate 106. After the angle adjustment is completed, the length of the first brace 301 outside the second brace 302 is adjusted by threaded connection. After adjustment to contact the bottom of the foundation pit, enhanced support and protection are provided. According to the distance between the two installed reinforcing middle columns 104, the second ejector rod 403 and the first ejector rod 404 are rotated in opposite directions for length adjustment. After the adjustment is completed, the ejector rod clamping block 401 is inserted into the clamping block installation groove, and the ejector rod connecting rod 402 is inserted into the connecting rod installation groove to provide enhanced support and protection again.
[0025] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A support device for a foundation pit for substation construction, comprising a column (1), characterized in that: The retaining plate (2) is movably plugged into one side of the column (1), the diagonal brace (3) is rotatably connected to one side of the column (1), the top rod (4) is movably plugged into one side of the column (1), the column (1) comprises a side column 1 (101), a side column 2 (102), a middle column (103) and a reinforced middle column (104), two diagonal brace mounting plates (106) are respectively arranged in parallel on one side of the middle column (103) and the reinforced middle column (104), and the diagonal brace mounting plates (106) are fixedly connected to one side of the reinforced middle column (104). The diagonal brace mounting plate (106) is fixedly connected to one side of the center column (103), the diagonal brace connecting rod (303) is rotatably connected to a reserved hole on one side of the diagonal brace mounting plate (106), the inner wall of the diagonal brace connecting plate (304) is fixedly connected to one side of the diagonal brace connecting rod (303), the diagonal brace connecting plate (304) is placed on one side of the two diagonal brace mounting plates (106), the second brace rod (302) is fixedly connected to one side of the diagonal brace connecting plate (304), and the first brace rod (301) is bolted to one side of the second brace rod (302).
2. A support device for substation construction in a foundation pit according to claim 1, characterized in that: Earth retaining plate installation grooves are respectively arranged inside the side column 1 (101), the side column 2 (102), the middle column (103) and the reinforced middle column (104).
3. The supporting device in the foundation pit for substation construction according to claim 1, characterized in that: The top rod mounting block (105) is fixedly connected to one side of the reinforced middle column (104), the top rod mounting block (105) and one side of the reinforced middle column (104) form a block mounting groove, and one side of the top rod mounting block (105) is provided with a connecting rod mounting groove.
4. A support device for substation construction in a foundation pit according to claim 3, characterized in that: The push rod (4) comprises a push rod clamping block (401), a push rod connecting rod (402), a push rod second (403) and a push rod first (404); the push rod clamping block (401) is detachably connected to one side of the clamping block mounting groove; the push rod connecting rod (402) is detachably connected to one side of the connecting rod mounting groove; the push rod clamping block (401) is fixedly connected to one side of the push rod connecting rod (402); the push rod first (404) is fixedly connected to one side of the push rod connecting rod (402); the push rod second (403) is fixedly connected to one side of the push rod connecting rod (402); one side of the push rod first (404) is threadedly connected to one side of the push rod second (403); and the push rod second (403) extends into the interior of the push rod first (404).