A foundation pit support structure for municipal pipeline construction

Abstract

The utility model relates to a kind of foundation pit support structure of municipal pipeline construction in the municipal pipeline construction technical field, when supporting foundation pit, plum-blossom block is far away from the cavity of plum-blossom groove, handle handlebar is rotated to rotary drum, rotary drum is synchronously driven to rotate threaded sleeve one and threaded sleeve two, make two threaded rods mutually far away, two threaded rods respectively push two support side plates, two support side plates are tightly contacted to the side of foundation pit, subsequently, screw rod is rotated, screw rod cooperates with gradually driven to lock block far away from the abutment rod of screw sleeve, two magnetic blocks mutually magnetically attract, so that two locking blocks mutually approach, plum-blossom block is synchronously clamped into plum-blossom groove to lock rotary drum, make rotary drum unable to rotate, and then the position of support structure one is fixed, increase the stability of support side plate to the sidewall support of foundation pit.

Description

Technical Field

[0001] This utility model relates to the field of municipal pipeline construction technology, and in particular to a foundation pit support structure for municipal pipeline construction. Background Technology

[0002] Existing municipal pipelines are mainly divided into six categories according to their functions: water supply pipelines, drainage pipelines, gas pipelines, heating pipelines, power cables, and telecommunications cables. When constructing municipal pipelines, it is necessary to excavate a foundation pit and support both sides of the foundation pit.

[0003] For example, Chinese patent application CN202420719454.3 discloses a foundation pit support structure for municipal pipeline construction. The specific details are as follows: After the foundation pit is excavated, workers fix multiple protective plates to both sides of the pit. First, a support sleeve is installed onto the threaded rod of one of the protective plates. Then, the mounting brackets on the two protective plates are rotated so that the threaded rods on the two mounting brackets are facing each other. The support sleeve is moved so that both ends of the support sleeve are connected to the two threaded rods respectively. Then, the two fixing discs are rotated until they are connected to both ends of the support sleeve. This allows the support structure to support foundation pits of different widths. However, it still has the following technical problems: In practice, after the fixed plate is rotated, it presses against both sides of the support sleeve. If the two sides of the pit are pressed against the protective plate, the fixed plate may rotate in the opposite direction, causing the tops of the two protective plates to move closer to each other. This reduces the protective effect of the protective plates on the pit. It is evident that the above structure is difficult to effectively protect the pit. Utility Model Content

[0004] To address the problem mentioned in the background section that existing technologies are insufficient for effectively protecting foundation pits, this utility model provides the following technical solution: A foundation pit support structure for municipal pipeline construction includes two support side plates for supporting the foundation pit. The two support side plates are arranged symmetrically from left to right. A support structure one is installed on the upper end of the support side plate, and a support structure two is installed on one side of the support structure one to cooperate with the support structure to stabilize the foundation pit.

[0005] The second support structure includes a threaded sleeve 1 and a threaded sleeve 2 for adjusting the distance between the two support side plates in conjunction with the first support structure. The second support structure includes an adjustment assembly for controlling the rotation of the threaded sleeve 1 and the threaded sleeve 2. Locking blocks for locking the adjustment assembly are symmetrically installed on the left and right sides of the middle of the adjustment assembly.

[0006] Furthermore, the support side plate has an L-shaped cross-section, and a plurality of insert rods for limiting the position of the support side plate are installed at the bottom of the support side plate, and a fixing seat is installed at the upper end of the support side plate.

[0007] Furthermore, the support structure includes a threaded rod, and the external threads of the two threaded rods have opposite directions. One end of the threaded rod is connected to a fixed seat through a pin to limit the threaded rod. A square hole is opened inside the threaded rod.

[0008] Furthermore, a magnetic block is installed inside the locking block, and the two magnetic blocks attract each other. A square rod for sliding in a square hole is installed at one end of the locking block. A plum blossom block is sleeved on the outside of the locking block, and a bevel is machined on one side of the locking block.

[0009] Furthermore, the adjusting assembly includes a rotating cylinder, and a fixing ring is installed in the middle of the inner cavity of the rotating cylinder. The fixing ring has a plum blossom groove in the middle for locking the adjusting assembly with a plum blossom block.

[0010] Furthermore, handles for rotating the drum are installed at both ends of the outer wall of the drum. A screw sleeve is installed in the middle of the drum, and a screw rod is threadedly connected to the middle of the screw sleeve. An abutment rod is installed at the lower end of the screw rod to cooperate with the inclined side to control the two locking blocks to move away from each other, and the diameter of the abutment rod is smaller than the diameter of the screw rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are: When supporting the foundation pit, the plum blossom blocks are moved away from the groove cavity of the plum blossom groove. The handle is held and the rotating drum is rotated. The rotating drum simultaneously drives the threaded sleeve one and the threaded sleeve two to rotate, so that the two threaded rods move away from each other. The two threaded rods push the two support side plates respectively, and the two support side plates press against the side of the foundation pit. Then the screw is rotated. The screw and the screw sleeve gradually drive the abutting rod away from the locking block. The two magnetic blocks attract each other, so that the two locking blocks move closer to each other. The plum blossom blocks are simultaneously locked into the plum blossom groove to lock the rotating drum, so that the rotating drum cannot rotate. This fixes the position of the first support structure and increases the stability of the support side plates for the side wall of the foundation pit. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the support structure of this utility model; Figure 3 This is a schematic diagram of the second support structure of this utility model; Figure 4 This is a schematic diagram of the locking block of this utility model; Figure 5 This is a schematic diagram of the structure of the adjustment component of this utility model; Figure 6 This utility model Figure 3Enlarged view of point A.

[0013] The following is a list of component names represented by the various reference numerals in the attached figures: 10-Foundation pit, 20-Support side plate, 21-Insertion rod, 22-Reinforcing plate, 23-Fixing seat; 100 - Support structure one, 110 - Threaded rod, 111 - Connecting seat, 112 - Square hole; 200-Support structure two, 210-Threaded sleeve one, 220-Threaded sleeve two, 230-Adjusting component, 231-Rotating drum, 232-Handle, 233-Fixing ring, 234-Plum blossom groove, 235-Threaded sleeve, 236-Threaded rod, 237-Abutting rod, 240-Locking block, 241-Magnetic block, 242-Square rod, 243-Plum blossom block, 244-Beveled side. Detailed Implementation

[0014] The preferred embodiments of this utility model are described in detail below, and a clear and complete explanation is given in conjunction with the accompanying drawings.

[0015] Please see Figures 1-6 This utility model provides a foundation pit support structure for municipal pipeline construction, including two support side plates 20 for supporting the foundation pit 10. The two support side plates 20 are arranged symmetrically from left to right. The cross-section of the support side plate 20 is L-shaped. Multiple insertion rods 21 for limiting the support side plate 20 are fixedly installed at the bottom of the support side plate 20. The insertion rods 21 are inserted into the bottom of the foundation pit 10, so that one side of the support side plate 20 is attached to the side wall of the foundation pit 10.

[0016] A reinforcing plate 22 is fixedly installed at the lower end of the support side plate 20 to increase the mechanical strength of the support side plate 20, increase the service life of the support side plate 20, and increase the protection strength of the support side plate 20 for the foundation pit.

[0017] A fixing seat 23 is fixedly installed on the upper end of the support side plate 20. A support structure 100 is installed on the upper end of the support side plate 20, and one end of the support structure 100 is movably installed on the fixing seat 23, so that when the foundation pit 10 is not supported, the support structure 100 can be abutted against the side of the support side plate 20. The rotatable support structure 100 facilitates the transportation of the foundation pit 10.

[0018] A second support structure 200 is installed on one side of the first support structure 100 to cooperate with the first support structure 100 in stabilizing the foundation pit 10. The first support structure 100 includes threaded rods 110, and the external threads of the two threaded rods 110 are turned in opposite directions, so that when the second support structure 200 rotates, the two support structures 100 move in opposite directions. When supporting the upper end of the foundation pit 10, the two support structures 100 move away from each other and cooperate with the second support structure 200 to support the upper end of the foundation pit 10.

[0019] One end of the threaded rod 110 is connected to a fixed seat 23 via a pin, which limits the movement of the threaded rod 110. The connecting seat 111 and the fixed seat 23 are movably connected by the pin, allowing the connecting seat 111 to rotate on the fixed seat 23. When the threaded rod 110 is not supported, it can be flipped to one side of the support side plate 20 for easy transport. A square hole 112 is provided inside the threaded rod 110.

[0020] Support structure 200 includes threaded sleeve 210 and threaded sleeve 220 for adjusting the distance between the two support side plates 20 in conjunction with support structure 100. Support structure 200 also includes an adjusting assembly 230 for controlling the rotation of threaded sleeves 210 and 220. Threaded sleeves 210 and 220 are symmetrically arranged on the left and right sides of the adjusting assembly 230, and are respectively fixed to both sides of the adjusting assembly 230 by bolts. Threaded holes are provided on both sides of the adjusting assembly 230. Rotation of the adjusting assembly 230 causes threaded sleeves 210 and 220 to rotate synchronously, thereby causing the two support structures 100 to move away from or towards each other. When the two support structures 100 move away from each other, they support the tops of the two support side plates 20, thus supporting the top of the pit 10.

[0021] A locking block 240 for locking the adjusting component 230 is symmetrically installed on the left and right sides of the middle part. A magnetic block 241 is installed inside the locking block 240, and the two magnetic blocks 241 are magnetically attracted to each other. A square rod 242 for sliding within a square hole 112 is installed at one end of the locking block 240. The square rod 242 is limited by the square hole 112, preventing the locking block 240 from rotating in the middle of the adjusting component 230. A perforated block 243 is fixedly installed on the outside of the locking block 240, and a bevel 244 is machined on one side of the locking block 240.

[0022] The adjusting assembly 230 includes a rotating cylinder 231. A fixing ring 233 is fixedly installed in the middle of the inner cavity of the rotating cylinder 231. A plum blossom groove 234 is opened in the middle of the fixing ring 233 for locking the adjusting assembly 230 with the plum blossom block 243. When the plum blossom groove 234 and the plum blossom groove 234 are engaged, the rotating cylinder 231 is locked, so that the rotating cylinder 231 cannot rotate. The distance between the two support structures 100 remains unchanged, thereby increasing the stability of the support side plate 20.

[0023] Handles 232 for rotating the drum 231 are fixedly installed at both ends of the outer wall of the drum 231. A screw sleeve 235 is fixedly installed in the middle of the drum 231. A screw rod 236 is threadedly connected to the middle of the screw sleeve 235. An abutment rod 237 is fixedly installed at the lower end of the screw rod 236 to cooperate with the inclined side 244 to control the two locking blocks 240 to move away from each other. The diameter of the abutment rod 237 is smaller than the diameter of the screw rod 236, and the radius of the abutment rod 237 is larger than the depth of the plum blossom block 243 inserted into the plum blossom groove 234. When the screw rod 236 is rotated, the abutment rod 237 pushes the inclined side 244 of the two locking blocks. When the abutment rod 237 is between the two locking blocks 240, the plum blossom block 243 gradually moves out of the groove of the plum blossom groove 234 so that the drum 231 can rotate smoothly.

[0024] When supporting the foundation pit 10, the plum blossom block 243 moves away from the cavity of the plum blossom groove 234. The handle 232 is held to rotate the rotating drum 231. The rotating drum 231 simultaneously drives the threaded sleeve 1 210 and the threaded sleeve 220 to rotate, so that the two threaded rods 110 move away from each other. The two threaded rods 110 push the two support side plates 20 respectively. The two support side plates 20 press against the side of the foundation pit 10. Then the screw 236 is rotated. The screw 236, together with the screw sleeve 235, gradually drives the contact rod 237 away from the locking block 240. The two magnetic blocks 241 attract each other, so that the two locking blocks 240 move closer to each other. The plum blossom block 243 is simultaneously inserted into the plum blossom groove 234 to lock the rotating drum 231, so that the rotating drum 231 cannot rotate. This fixes the position of the support structure 100 and increases the stability of the support side plates 20 for the side wall support of the foundation pit 10.

[0025] Based on the above description and accompanying drawings, those skilled in the art can understand and implement this utility model. Furthermore, any non-creative modifications made to this utility model by those skilled in the art without inventive effort are still within the protection scope of this utility model.

Claims

1. A foundation pit support structure for municipal pipeline construction, comprising two support side plates (20) for supporting the foundation pit (10), characterized in that: The two support side plates (20) are arranged symmetrically on the left and right. A support structure one (100) is installed on the upper end of the support side plate (20). A support structure two (200) is installed on one side of the support structure one (100) to cooperate with the support structure one (100) to stabilize the foundation pit (10). The second support structure (200) includes a threaded sleeve one (210) and a threaded sleeve two (220) for adjusting the distance between the two support side plates (20) in conjunction with the first support structure (100). The second support structure (200) includes an adjustment component (230) for controlling the rotation of the threaded sleeve one (210) and the threaded sleeve two (220). The adjustment component (230) is symmetrically equipped with locking blocks (240) for locking the adjustment component (230) on the left and right sides.

2. The foundation pit support structure for municipal pipeline construction according to claim 1, characterized in that: The support side plate (20) has an L-shaped cross section. Multiple insert rods (21) for limiting the support side plate (20) are installed at the bottom of the support side plate (20). A fixing seat (23) is installed at the upper end of the support side plate (20).

3. The foundation pit support structure for municipal pipeline construction according to claim 1, characterized in that: The support structure 1 (100) includes a threaded rod (110), and the external threads of the two threaded rods (110) are opposite in direction. One end of the threaded rod (110) is connected to a fixed seat (23) through a pin to limit the threaded rod (110) by a connecting seat (111). The threaded rod (110) has a square hole (112) inside.

4. The foundation pit support structure for municipal pipeline construction according to claim 3, characterized in that: The locking block (240) has a magnetic block (241) installed inside, and the two magnetic blocks (241) are magnetically attracted to each other. One end of the locking block (240) is equipped with a square rod (242) for sliding in a square hole (112). The locking block (240) is fitted with a plum blossom block (243) on the outside. One side of the locking block (240) is machined with a bevel (244).

5. The foundation pit support structure for municipal pipeline construction according to claim 4, characterized in that: The adjustment component (230) includes a rotating cylinder (231), a fixing ring (233) is installed in the middle of the inner cavity of the rotating cylinder (231), and a plum blossom groove (234) is opened in the middle of the fixing ring (233) for locking the adjustment component (230) with the plum blossom block (243).

6. The foundation pit support structure for municipal pipeline construction according to claim 5, characterized in that: The outer wall of the rotating cylinder (231) is equipped with handles (232) for rotating the rotating cylinder (231) at both the left and right ends. A screw sleeve (235) is installed in the middle of the rotating cylinder (231). A screw rod (236) is threadedly connected to the middle of the screw sleeve (235). A contact rod (237) is installed at the lower end of the screw rod (236) for cooperating with the inclined side (244) to control the two locking blocks (240) to move away from each other. The diameter of the contact rod (237) is smaller than the diameter of the screw rod (236).

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