Supporting device for municipal foundation pit construction

Abstract

Supporting device for municipal foundation pit construction, including fixed bottom plate, supporting plate, support rod, mobile seat, limit support, connecting rod, buckle plate, The fixed bottom plate is connected with supporting plate through lower axle rod, lower axle rod connects supporting plate, fixed bottom plate in turn, Supporting plate is connected with upper end of support rod through upper axle rod, upper axle rod connects supporting plate, support rod in turn, The lower end of support rod is connected with mobile seat through movable axle rod, movable axle rod connects mobile seat, support rod in turn, The both sides of fixed bottom plate have limit support, Limit support has inner slide in the inside, inner slide is adapted to mobile seat, mobile seat connects inner slide, mobile seat slides in inner slide, Mobile seat has connecting rod through hole. Limit support has a first slide hole, connecting rod through hole, first slide hole and connecting rod are adapted, connecting rod passes through first slide hole, connecting rod through hole in turn.

Description

Technical Field

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

[0002] An existing patent (publication number: CN222730573U) discloses a support device for municipal foundation pit construction, including a support plate, a guide rail, and a support rod. The support plate is installed on both sides of the foundation pit; the guide rail is installed on the side of the support plate closest to the foundation pit, and at least one slider is slidably connected to the guide rail. A fastening bolt is threadedly connected to one side of the slider; a first rod sleeve is provided on the slider; the support rod is used to tighten the support plate, and the support rod includes a threaded sleeve, with a screw threaded to each end of the threaded sleeve, one end of which is inserted into the corresponding first rod sleeve. However, in this device, the support angle of the "support plate" is fixed, and it is impossible to adjust the support angle according to the actual slope of the foundation pit sidewall, which reduces the fit between the support plate and the pit wall, affects the support effect, and has drawbacks. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of existing technologies by providing a support device for municipal foundation pit construction that offers stable support. This device allows for adjustment of the support plate's support angle based on the actual slope of the pit sidewall, making it widely applicable and highly practical. Furthermore, it increases the fit between the support plate and the pit wall, enhancing support stability.

[0004] The objective of this utility model is achieved through the following technical solution: A support device for municipal foundation pit construction includes a fixed base plate, a support plate, a support rod, a movable seat, a limiting support, a connecting rod, and a buckle plate. The fixed base plate is connected to the support plate via a lower shaft, which in turn connects the support plate and the fixed base plate. The support plate is connected to the upper end of the support rod via an upper shaft, which in turn connects the support plate and the support rod. The lower end of the support rod is connected to the movable seat via a movable shaft, which in turn connects the movable seat and the support rod. The fixed base plate has limiting supports on both sides, and each limiting support has an inner slide rail that is adapted to the movable seat. The movable seat is connected to the inner slide rail and slides within the inner slide rail. The movable seat has a connecting rod through hole. The limiting support has a first sliding hole, and the connecting rod through hole and the first sliding hole are adapted to the connecting rod. The connecting rod passes through the first sliding hole and the connecting rod through hole in sequence.

[0005] The linkage sleeve of this utility model has a slot, and the linkage has a rod that is adapted to the slot and connected to the slot. The linkage sleeve has baffles at both ends, and the baffles are connected to buckles. The linkage sleeve is connected inside the buckles, and the buckles have fastening rods. The linkage sleeve has side through holes, and the rod has fastening grooves. The fastening grooves and side through holes are adapted to the fastening rods. The fastening rods pass through the side through holes and are connected to the fastening grooves. The buckles have connecting plates on both sides, and screws pass through the connecting plates. Nuts are connected to both ends of the screws by threads.

[0006] The limiting support of this utility model has an outer support sleeve with an outer slide rail. The outer end of the connecting rod has a positioning support sleeve, which is adapted to the outer slide rail and connected to the outer slide rail. The positioning support sleeve slides within the outer slide rail. The positioning support sleeve has locking plate through holes on both sides, and the outer support sleeve has multiple locking grooves on both sides. The locking grooves and locking plate through holes are adapted to the locking plates. The locking plates pass through the locking plate through holes and are connected to the locking grooves. Beneficial effects

[0007] This utility model connects the fixed base plate, support plate, support rod, and movable seat via shafts. It also utilizes an inner slide rail to limit and guide the movable seat, and a locking plate embedded in a locking groove for braking and locking. This allows for flexible adjustment and rapid support of the support plate's angle, adapting to irregular slopes in the pit sidewalls caused by geological conditions and excavation processes during actual construction. This expands the device's applicability and practicality while increasing the fit between the support plate and the pit wall, reducing gaps, avoiding the risk of pit wall collapse due to localized stress concentration, and enhancing support stability.

[0008] This utility model's control rod has two ends connected to the control plates on both sides via positive and negative threads, allowing the control plates to move synchronously towards or away from each other by rotating a knob. When the lock plate moves outward until it is embedded in the lock groove, a limiting support can be added to the positioning fulcrum of the moving seat, ensuring stable support force. When the lock plate moves inward until it is completely disengaged from the lock groove, the positioning fulcrum of the limiting support for the moving seat disappears. At this point, the support angle of the support plate can be adjusted accordingly based on the actual slope of the foundation pit sidewall. The structure is flexible, the operation is convenient, and the efficiency of municipal foundation pit construction support work is improved.

[0009] This utility model has a flexible structure and stable support. The support angle of the support plate can be adjusted according to the actual slope of the pit sidewall. It has a wide range of applications and strong practicality. At the same time, it increases the fit between the support plate and the pit wall and enhances the support stability. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the support device for municipal foundation pit construction described in this utility model.

[0011] Figure 2This is an exploded view of the structure of the mobile seat positioning device described in this utility model.

[0012] Figure 3 This is a cross-sectional view of the support device structure for municipal foundation pit construction described in this utility model.

[0013] Figure 4 This is a cross-sectional view of the movable seat positioning structure described in this utility model.

[0014] Figure 5 This is a schematic diagram of the fixed base plate structure described in this utility model.

[0015] Figure 6 This is a cross-sectional view of the buckle plate, linkage sleeve, and plug rod connection structure described in this utility model. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments: Example 1: A support device for municipal foundation pit construction includes a fixed base plate 01, a support plate 02, a support rod 03, a movable seat 06, a limiting support 10, a connecting rod 13, and a buckle plate 27. The fixed base plate 01 is connected to the support plate 02 via a lower shaft 04, which in turn connects the support plate 02 and the fixed base plate 01. The support plate 02 is connected to the upper end of the support rod 03 via an upper shaft 05, which in turn connects the support plate 02 and the support rod 03. The lower end of the support rod 03 is connected to the movable seat 06 via a movable shaft 07, which in turn connects the movable seat 06 and the support rod 03. The fixed base plate 01 has limiting supports 10 on both sides. Each limiting support 10 has an inner slide rail 08 that is adapted to the movable seat 06. The movable seat 06 is connected to the inner slide rail 08 and slides within the inner slide rail 08. The seat 06 has a connecting rod through hole 12. The limiting support 10 has a first sliding hole 11. The connecting rod through hole 12 and the first sliding hole 11 are adapted to the connecting rod 13. The connecting rod 13 passes through the first sliding hole 11 and the connecting rod through hole 12 in sequence. The fixed base plate 01, support plate 02, support rod 03 and moving seat 06 are all connected by shafts. In conjunction with the inner slide rail 08, the moving seat 06 is limited and guided, and the locking plate 15 is embedded in the locking groove 16 for braking and locking. The support angle of the support plate 02 can be flexibly adjusted and quickly supported. It is suitable for irregular slopes of the pit sidewall caused by geological conditions and excavation process differences in actual construction. While expanding the applicability and practicality of the device, it also increases the fit between the support plate 02 and the pit wall, reduces the gap between the support plate 02 and the pit wall, avoids the risk of pit wall collapse caused by local stress concentration, and enhances the stability of the support.

[0017] Example 2: The connecting rod 13 of this utility model connects to the linkage sleeve 24. The linkage sleeve 24 has a slot 26, and the connecting rod 13 has a plug 25. The plug 25 is adapted to the slot 26 and connects to the slot 26. The linkage sleeve 24 has baffles 32 at both ends, and the baffles 32 are connected to buckles 27. The buckles 27 are internally connected to the linkage sleeve 24 and have fastening rods 28. The linkage sleeve 24 has side through holes 30, and the plug 25 has a fastening groove 29. The fastening groove 29 and the side through holes 30 are connected. Corresponding to the fastening rod 28, the fastening rod 28 passes through the side through hole 30 and is connected to the fastening groove 29. The buckle plate 27 has connecting plates 31 on both sides, and the screw 33 passes through the connecting plates 31. The two ends of the screw 33 are connected to the nuts 34 by threads. This device has a flexible structure and stable support. The support angle of the support plate 02 can be adjusted according to the actual slope of the pit sidewall. It has a wide range of applications and strong practicality. At the same time, it increases the fit between the support plate 02 and the pit wall and enhances the support stability.

[0018] Example 3: The limiting support 10 of this utility model has an outer support sleeve 14 on the outside, the outer support sleeve 14 has an outer slide rail 09, the outer end of the connecting rod 13 has a positioning support sleeve 18, the positioning support sleeve 18 is adapted to the outer slide rail 09, the positioning support sleeve 18 is connected to the outer slide rail 09, the positioning support sleeve 18 slides in the outer slide rail 09, the positioning support sleeve 18 has locking plate through holes 17 on both sides, the outer support sleeve 14 has multiple locking grooves 16 on both sides, the locking grooves 16 and the locking plate through holes 17 are adapted to the locking plate 15, the locking plate 15 passes through the locking plate through holes 17, and the locking plate 15 is connected to the locking grooves 16.

[0019] Example 4: The positioning sleeve 18 of this utility model has an external connecting cover plate 19. The cover plate 19 has a second sliding hole 35. The locking plate 15 has a control plate 21, which is adapted to the second sliding hole 35 and passes through the second sliding hole 35. The cover plate 19 has an external mounting support plate 23. The control rod 20 passes through the mounting support plate 23 and the control plate 21 in sequence. The control rod 20 is threaded to the control plate 21. The two ends of the control rod 20 are connected to knobs 22, which fit against the mounting support plate 23. The two ends of the control rod 20 are respectively connected to the control plates 21 on both sides through positive and negative threads. The positioning connection allows the control plates 21 on both sides to move synchronously towards or away from each other by rotating the knob 22. When the lock plate 15 moves outward until it is embedded in the lock groove 16, the positioning support points of the limit support 10 and the moving seat 06 can be increased to ensure the stability of the support force. When the lock plate 15 moves inward until it is completely separated from the lock groove 16, the positioning support points of the limit support 10 and the moving seat 06 disappear. At this time, the support angle of the support plate 02 can be adjusted according to the actual slope of the foundation pit sidewall. The structure is flexible, the operation is convenient, and the efficiency of municipal foundation pit construction support operation is improved.

[0020] Example 5: Installation steps: First, assemble the positioning sleeve 18 structure. Place the locking plate 15 into the positioning sleeve 18, with the locking plate 15 passing through the locking plate through hole 17. Then, install and fix the cover plate 19 to the outside of the positioning sleeve 18, and let the control plate 21 pass through the second sliding hole 35. Next, let the control rod 20 pass through the mounting plate 23 and the control plate 21 in sequence, with both ends of the control rod 20 connected to the control plates 21 on both sides through positive and negative threads. Finally, place the knob 22 outside the mounting plate 23 and fix it to the control rod 20, with the inner surface of the knob 22 fitting against the outer surface of the mounting plate 23. After completing the installation of the positioning sleeve 18 structure, assemble the support plate 02 support structure. First, connect the lower end of the support plate 02 to the fixed base plate 01 through the lower shaft rod 04. Next, place the movable seat 06 into the inner slide rail 08, with the connecting rod through hole 12 corresponding to the position of the first sliding hole 11. Then, connect the upper end of the support rod 03 to the support plate 02 through the upper shaft rod 05, and connect the lower end of the support rod 03 to the movable seat 06 through the movable shaft rod 07. Then, place the positioning sleeve 18 into the outer slide rail 09, with the locking plate 15 embedded in the locking groove 16. The connecting rod 13 passes through the first sliding hole 11 and the connecting rod through hole 12 in sequence, and the insert rod 25 is embedded in the slot 26. The fastening groove 29 corresponds to the position of the side through hole 30. Then, place the buckle plate 27 outside the linkage sleeve 24, with the buckle plate 27 fitting against the baffle 32. The fastening rod 28 passes through the side through hole 30 and is embedded in the fastening groove 29. Finally, fix the connecting plates 31 together with the screw 33 and nut 34 to complete the installation.

[0021] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A support device for municipal foundation pit construction, characterized in that: The system includes a fixed base plate (01), a support plate (02), a support rod (03), a movable seat (06), a limiting support (10), a connecting rod (13), and a buckle plate (27). The fixed base plate (01) is connected to the support plate (02) via a lower shaft (04). The lower shaft (04) is connected to the support plate (02) and the fixed base plate (01) in sequence. The support plate (02) is connected to the upper end of the support rod (03) via an upper shaft (05). The upper shaft (05) is connected to the support plate (02) and the support rod (03) in sequence. The lower end of the support rod (03) is connected to the movable seat (06) via a movable shaft (07). The movable shaft (07) is connected to the fixed base plate (06) via a movable shaft (07). The secondary connection is made of the movable seat (06) and the support rod (03). The fixed base plate (01) has limiting supports (10) on both sides. The limiting supports (10) have an inner slide (08) inside. The inner slide (08) is adapted to the movable seat (06). The movable seat (06) is connected to the inner slide (08). The movable seat (06) slides in the inner slide (08). The movable seat (06) has a connecting rod through hole (12). The limiting support (10) has a first sliding hole (11). The connecting rod through hole (12) and the first sliding hole (11) are adapted to the connecting rod (13). The connecting rod (13) passes through the first sliding hole (11) and the connecting rod through hole (12) in sequence.

2. The support device for municipal foundation pit construction according to claim 1, characterized in that: The connecting rod (13) is connected to the linkage sleeve (24). The linkage sleeve (24) has a slot (26). The connecting rod (13) has a plug (25). The plug (25) is adapted to the slot (26) and is connected to the slot (26). The linkage sleeve (24) has baffles (32) at both ends. The baffles (32) are connected to the buckle plate (27). The buckle plate (27) is internally connected to the linkage sleeve (24). The buckle plate (27) has a fastening rod (28). The linkage sleeve (24) has a side through hole (30), the insert rod (25) has a fastening groove (29), the fastening groove (29) and the side through hole (30) are adapted to the fastening rod (28), the fastening rod (28) passes through the side through hole (30), the fastening rod (28) is connected to the fastening groove (29), the buckle plate (27) has connecting plates (31) on both sides, the screw (33) passes through the connecting plate (31), and the two ends of the screw (33) are connected to nuts (34) by threads.

3. The support device for municipal foundation pit construction according to claim 2, characterized in that: The limiting support (10) has an outer support sleeve (14) on the outside, the outer support sleeve (14) has an outer slide (09), the outer end of the connecting rod (13) has a positioning support sleeve (18), the positioning support sleeve (18) is adapted to the outer slide (09), the positioning support sleeve (18) is connected to the outer slide (09), the positioning support sleeve (18) slides in the outer slide (09), the positioning support sleeve (18) has locking plate through holes (17) on both sides, the outer support sleeve (14) has multiple locking grooves (16) on both sides, the locking grooves (16), the locking plate through holes (17) are adapted to the locking plate (15), the locking plate (15) passes through the locking plate through holes (17), and the locking plate (15) is connected to the locking grooves (16).

4. The support device for municipal foundation pit construction according to claim 3, characterized in that: The positioning support (18) is externally connected to a cover plate (19). The cover plate (19) has a second sliding hole (35). The locking plate (15) has a control plate (21). The control plate (21) is adapted to the second sliding hole (35). The control plate (21) passes through the second sliding hole (35). The cover plate (19) has an external mounting plate (23). The control rod (20) passes through the mounting plate (23) and the control plate (21) in sequence. The control rod (20) is connected to the control plate (21) by a thread. The two ends of the control rod (20) are connected to knobs (22). The knobs (22) fit against the mounting plate (23).

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