Temporary supporting device for deep foundation pit construction

Abstract

The utility model discloses a temporary supporting device for deep foundation pit construction. The temporary supporting device comprises a baffle. The baffle is inserted into the ground; a fixing block is fixed to the upper side of the wall face of the baffle and connected with a rotating inserting cylinder through a rotating pair, the side, away from the baffle, of the rotating inserting cylinder is fixed to a connecting rod, the connecting rod is inserted into a sliding sleeve rod and can slide in the length direction of the sliding sleeve rod, and a sliding groove is formed in the upper surface of the sliding sleeve rod in the length direction of the sliding sleeve rod. A threaded rod arrangement frame I is fixed to the connecting rod and located in the sliding groove, a threaded rod arrangement frame II is fixed to the sliding sleeve rod, and the threaded rod is in threaded connection with the threaded rod arrangement frame II and the threaded rod arrangement frame I in sequence. Right-angle inserting plates are fixedly connected to the sides, away from the connecting rods, of the sliding sleeve rods. The temporary supporting device for deep foundation pit construction is reasonable and simple in structural design, good in supporting reliability, convenient and fast to mount and dismount and good in application prospect, and the length of the supporting rod can be adjusted by rotating the threaded rod.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a temporary support device for deep foundation pit construction, which is convenient for installation and disassembly. Background Art

[0002] The foundation pit project mainly includes the design and construction of the foundation pit support system and earth excavation. It is a highly comprehensive system project, which requires close cooperation between geotechnical and structural engineering technicians. The foundation pit support system is a temporary structure that is no longer needed after the underground project construction is completed.

[0003] Since the device is only used for short-term temporary support, quick installation and quick disassembly become very important points. However, the foundation pit support devices currently used usually require multiple connections and fixation with anchor nails, wires and steel plates or similar structures. The installation and disassembly are relatively cumbersome, which greatly affects the efficiency of on-site construction.

[0004] Therefore, it is of great practical significance to develop a temporary support device for deep foundation pit construction that is easy to install and disassemble. Utility Model Content

[0005] Due to the above-mentioned defects in the prior art, the utility model provides a temporary support device for deep foundation pit construction which is easy to install and disassemble, overcoming the defects that the existing foundation pit support devices are mostly fixed with anchor nails, iron wires and steel plates or similar structures, which makes the installation and disassembly operations cumbersome and affects the construction efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A temporary support device for deep foundation pit construction, comprising a baffle;

[0008] The lower part of the baffle is provided with a baffle ground-inserting inclined surface, and the baffle ground-inserting inclined surface is inserted into the ground, so that the bottom of the baffle can push away the soil and insert downward;

[0009] A fixing block is fixed on the upper side of the wall surface of the baffle, and the fixing block is connected to the rotating plug cylinder through a rotating pair, and the rotating plug cylinder can rotate around the rotating pair, and the rotating plug cylinder is fixedly connected to the connecting rod away from the baffle side. The connecting rod is inserted in the sliding sleeve rod and the connecting rod can slide along the length direction of the sliding sleeve rod, and the upper surface of the sliding sleeve rod is provided with a sliding groove along the length direction of the sliding sleeve rod. A threaded rod arranging frame I is fixed on the connecting rod and the threaded rod arranging frame I is located in the sliding groove, and a threaded rod arranging frame II is fixed on the sliding sleeve rod, the threaded rod arranging frame I and the threaded rod arranging frame II are located on the same straight line and both are located on the same side of the sliding sleeve rod, and the threaded rod arranging frame I and the threaded rod arranging frame II are provided with an internal thread structure I that matches the external thread structure I on the threaded rod, and the threaded rod is threadedly connected with the threaded rod arranging frame II and the threaded rod arranging frame I in turn, and the position of the connecting rod in the sliding sleeve rod can be adjusted by rotating the threaded rod;

[0010] The sliding sleeve rod is fixedly connected with a right-angle plug plate on the side away from the connecting rod. The right-angle plug plate is L-shaped as a whole, and includes a horizontal plate and a vertical plate vertically connected to each other. The vertical plate is inserted into the ground, and the horizontal plate is parallel to and in contact with the ground.

[0011] The utility model discloses a temporary support device for deep foundation pit construction, which has a reasonable and relatively simple structural design. The connecting rod is unfolded and the sliding sleeve rod is extended to insert the right-angle plug plate into the ground. During the support process, the upper surface of the right-angle plug plate contacts the ground and the downwardly extended part of the right-angle plug plate is inserted into the ground, so that the soil can be avoided from being pushed away and the right-angle plug plate can be firmly inserted into the ground. The array device can be unfolded in sequence to support the wall. The length of the support rod can be adjusted by rotating the threaded rod. The installation is convenient and quick, and the disassembly operation is the same as the installation (disassembly is convenient and quick), and the application prospect is good.

[0012] As the preferred technical solution:

[0013] In the temporary supporting device for deep foundation pit construction as described above, the connecting rod is plugged and fixed to the rotating insert cylinder.

[0014] As described above, a temporary support device for deep foundation pit construction is provided with a threaded rod adjustment socket at the end of the threaded rod away from the threaded rod arranging frame I. The threaded rod adjustment socket is inserted into the electric wrench commonly used at the construction site, and the position of the connecting rod in the sliding sleeve rod can be quickly adjusted by turning on the electric wrench, which can further improve the operating convenience of the device.

[0015] As described above, a temporary support device for deep foundation pit construction is provided, wherein a matching fixing block 1 is fixed to the end of the threaded rod away from the threaded rod arranging frame I, and a matching fixing block 2 is fixed on the sliding sleeve rod, the positions of the matching fixing block 1 and the matching fixing block 2 correspond to each other (when the threaded rod rotates, the positions of the matching fixing block 1 and the matching fixing block 2 coincide and the internal thread structures II of the two also coincide), and both are provided with internal thread structures II that match each other, and the fixing screw is provided with an external thread structure II that matches the internal thread structure II, and the fixing screw is threadedly connected with the matching fixing block 2, and the threaded rod is fixed by fixing the matching fixing block 1 and the matching fixing block 2 with the fixing screw to prevent the threaded rod from gradually loosening and causing the sliding sleeve rod to shrink and the baffle to tilt.

[0016] In the above-mentioned temporary support device for deep foundation pit construction, the bottom of the baffle is fixedly connected with a reinforcing plate, the reinforcing plate is a triangular support structure, the lower surface of the reinforcing plate is in contact with the ground, and the reinforcing plate and the fixing block are located on the same side of the baffle. The reinforcing plate can further improve the stability of the baffle, and the reinforcing plate can also play the role of reinforcing ribs to make it less likely to deform.

[0017] In the temporary support device for deep foundation pit construction as described above, vertically arranged reinforcement rods are provided on both sides of the reinforcement plate, and the reinforcement rods are fixedly connected to the baffle plate, and the reinforcement rods can increase the compression and deformation resistance at the edge of the baffle plate.

[0018] As described above, a temporary support device for deep foundation pit construction has slots on both sides of the baffle in the vertical direction, and sliding rods are fixedly connected to both sides of the connecting baffle, the sliding rods match the slots and are slidably connected to the slots, and the connecting baffle is fixed by the sliding rods and the slots of the baffles. By placing connecting baffles between adjacent baffles, the cost of support can be reduced, and the two ends of the sliding rod are simultaneously embedded in the slots of the two baffles to play a connecting role, so as to make up for the gap after the wall is fully paved with baffles, and can be slid to a suitable length to fill the gap. The installed sliding rod can also play a reinforcing role to avoid the situation where the middle part of the connecting baffle is not connected and supported and is easily deformed. When supporting the foundation pit wall with a low risk factor, more connecting baffles can be used for faster installation to save time, manpower, transportation and other costs.

[0019] A temporary support device for deep foundation pit construction as described above, wherein a connecting plate is provided between the baffle plate and the fixed block, and the contact area between the baffle plate and the fixed block is increased by the connecting plate to avoid deformation of the baffle plate portion around the fixed block due to excessive squeezing;

[0020] There are two fixing blocks in total, and the two fixing blocks are symmetrically arranged on the connecting plate.

[0021] The above technical solution is only a feasible technical solution of the present utility model, and the protection scope of the present utility model is not limited thereto. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0022] The above utility model has the following advantages or beneficial effects:

[0023] (1) The temporary support device for deep foundation pit construction of the utility model has a reasonable and relatively simple structural design. By unfolding the connecting rod and extending the sliding sleeve rod to insert the right-angle plug plate into the ground, the upper surface of the right-angle plug plate contacts the ground during the support process and the right-angle plug plate is inserted into the ground with the downwardly extended part thereof, so that the soil is not removed and the right-angle plug plate is firmly inserted into the ground. The wall can be supported by the array device and unfolded in sequence. The length of the support rod can be adjusted by rotating the threaded rod. The installation is convenient and quick, and the disassembly operation is the same as the installation (disassembly is convenient and quick);

[0024] (2) The utility model of the temporary support device for deep foundation pit construction has a connecting baffle placed between adjacent baffles. Both ends of the slide rod are simultaneously embedded in the slots of the two baffles to play a connecting role, so as to make up for the gaps left after the wall is fully covered with baffles. This can reduce the cost of support and improve the efficiency of support installation / disassembly, and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, and the emphasis is on illustrating the subject matter of the present invention.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a temporary supporting device for deep foundation pit construction of the utility model;

[0027] Figure 2 It is a schematic diagram of the connection of the sliding sleeve rod, the connecting rod, the right-angle plug plate and the threaded rod of the utility model;

[0028] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0029] Among them, 1-ground, 2-baffle, 3-baffle ground inclined surface, 4-connecting plate, 5-fixed block, 6-rotating plug cylinder, 7-connecting rod, 8-sliding sleeve rod, 9-right-angle plug plate, 10-slide groove, 11-threaded rod arrangement frame I, 12-threaded rod, 13-threaded rod adjustment socket, 14-matching fixed block one, 15-matching fixed block two, 16-fixing screw, 17-reinforcement plate, 18-reinforcement rod, 19-slot, 20-slide rod, 21-connecting baffle. DETAILED DESCRIPTION

[0030] The structure of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0031] Example 1

[0032] A temporary support device for deep foundation pit construction, such as Figures 1 to 3 As shown, it includes a baffle 2 with a bottom inserted into the ground 1. The bottom edge of the baffle 2 near the wall is provided with a baffle ground insertion slope 3, which is convenient for the bottom of the baffle 2 to push away the soil and insert downward. The baffle 2 is located at the opposite side of the wall near the top and is fixedly connected with a connecting plate 4. The connecting plate 4 is fixed with a fixed block 5 on the side away from the baffle 2. The fixed block 5 is connected to a rotating plug 6 through a rotating pair. The rotating plug 6 can rotate around the rotating pair. The rotating plug 6 is fixedly connected to a connecting rod 7 on the side away from the baffle 2 (the rotating plug 6 and the connecting rod 7 are plugged and fixed). The connecting rod 7 is plugged into a sliding sleeve rod 8 and the connecting rod 7 can slide along the length direction of the sliding sleeve rod 8.

[0033] A slide groove 10 is provided on the upper surface of the sliding sleeve rod 8 along the length direction of the sliding sleeve rod 8, a threaded rod arranging frame I11 is fixed on the connecting rod 7 and the threaded rod arranging frame I11 is located in the slide groove 10, a threaded rod arranging frame II is fixed on the sliding sleeve rod 8, the threaded rod arranging frame I11 and the threaded rod arranging frame II are located on the same straight line and both are located on the same side of the sliding sleeve rod 8, the threaded rod arranging frame I11 and the threaded rod arranging frame II are provided with an internal thread structure I that matches the external thread structure I on the threaded rod 12, the threaded rod 12 is threadedly connected to the threaded rod arranging frame II and the threaded rod arranging frame I11 in turn, the position of the connecting rod 7 in the sliding sleeve rod 8 can be adjusted by rotating the threaded rod 12, a right-angle plug plate 9 is fixedly connected to the side of the sliding sleeve rod 8 away from the connecting rod 7, and the right-angle plug plate 9 is L-shaped as a whole, and includes a horizontal plate and a vertical plate vertically connected to each other, the vertical plate is inserted into the ground 1, and the horizontal plate is parallel to and in contact with the ground 1.

[0034] Insert the baffle into the ground against the wall, then swing the connecting rod to tilt it, and then rotate the threaded rod so that the threaded rod pushes the connecting rod and the connecting block outward, thereby inserting the right-angle plug plate into the ground. Through the array device and unfolding it in sequence, it can support the wall. During the support process, the horizontal plate of the right-angle plug plate contacts the ground and cooperates with the vertical plate of the right-angle plug plate to insert into the ground to prevent the soil from being removed and the right-angle plug plate from gradually shifting, thereby more effectively fixing the position of the right-angle plug plate and firmly supporting the wall. After use, rotate the threaded rod in the opposite direction and retract the sliding sleeve rod to fold it to reduce the occupied space for easy storage and transportation.

[0035] like Figure 3As shown, a threaded rod adjusting socket 13 is provided at the end of the threaded rod 12 away from the threaded rod arranging frame I11. Specifically, the threaded rod adjusting socket 13 is opened to make the size of the threaded rod convenient for inserting an electric wrench that is easily available on the market, thereby making it more convenient and labor-saving to rotate the threaded rod 12.

[0036] like Figure 3 As shown, a matching fixing block 14 is fixed to the end of the threaded rod 12 away from the threaded rod arranging frame I11, and a matching fixing block 2 15 is fixed on the sliding sleeve rod 8. The positions of the matching fixing block 14 and the matching fixing block 2 15 correspond to each other (when the threaded rod 12 rotates, the positions of the matching fixing block 14 and the matching fixing block 2 15 coincide and the internal thread structures II of the two also coincide), and both are provided with internal thread structures II that match each other, and the fixing screw 16 is provided with an external thread structure II that matches the internal thread structure II. The fixing screw 16 is threadedly connected with the matching fixing block 2 15. By rotating the matching fixing block 14 to a suitable length, you can try to align the matching fixing block 14 and the matching fixing block 2 15 and screw on the fixing screw 16, thereby fixing the threaded rod 12 to prevent it from gradually loosening and causing the sliding sleeve rod 8 to shrink and the baffle 2 to tilt.

[0037] like Figure 1 As shown, a reinforcing plate 17 is fixedly connected to the bottom of the baffle 2. The reinforcing plate 17 is a triangular supporting structure. The lower surface of the reinforcing plate 17 is in contact with the ground 1 and the reinforcing plate 17 and the fixing block 5 are located on the same side of the baffle 2. Specifically, the installed reinforcing plate 17 plays the same role as the horizontally extending part of the right-angle plug plate 9, thereby making the bottom of the baffle 2 more firmly inserted, not easy to lift up the soil and loosen the connection with the ground 1, and plays the role of a reinforcing rib to make it less likely to deform.

[0038] like Figure 1 As shown, vertically arranged reinforcement rods 18 are provided on both sides of the reinforcement plate 17 , and the reinforcement rods 18 are fixedly connected to the baffle 2 . The installed reinforcement rods 18 can increase the compression and deformation resistance at the edge of the baffle 2 .

[0039] like Figure 1As shown, the surface of the baffle 2 contacting the wall is horizontally provided with a slot 19, the surface of the baffle 2 is in contact with a connecting baffle 21, the side of the connecting baffle 21 is fixedly connected with a slide bar 20, and the slide bar 20 is slidably connected to the slot 19. Specifically, a connecting baffle 21 is placed between two adjacent baffles 2, and both ends of the slide bar 20 are simultaneously embedded in the slots 19 of the two baffles 2 to play a connecting role, so as to make up for the gap after the wall is fully paved with baffles 2. The appropriate length can be slid to connect to fill the gap. The installed slide bar 20 can also play a reinforcing role to avoid the situation where the middle part of the connecting baffle 21 is not connected and supported and is easily deformed. When supporting the foundation pit wall with a lower risk factor, more connecting baffles 21 can be used to install faster to save time, manpower, transportation and other costs.

[0040] It has been verified that the temporary support device for deep foundation pit construction of the utility model has a reasonable and relatively simple structural design. By unfolding the connecting rod and extending the sliding sleeve rod to insert the right-angle plug plate into the ground, the upper surface of the right-angle plug plate contacts the ground during the support process and cooperates with the downwardly extended part of the right-angle plug plate to be inserted into the ground, so as to avoid the soil being pushed away and firmly insert the ground. Through the array device and unfolding it in sequence, it can play a supporting role on the wall. By rotating the threaded rod, the length of the support rod can be adjusted. The installation is convenient and quick, and the disassembly operation is the same as the installation (disassembly is convenient and quick); by placing a connecting baffle between adjacent baffles, the two end parts of the sliding rod are simultaneously embedded in the card grooves of the two baffles to play a connecting role, so as to make up for the gap after the wall is fully paved with baffles, which can reduce the cost of support and improve the support installation / disassembly efficiency, and has good application prospects.

[0041] Those skilled in the art should understand that those skilled in the art can implement variations by combining the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0042] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific implementation methods, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the utility model without departing from the scope of the technical solution of the utility model, or modify them into equivalent embodiments of equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A temporary support device for deep foundation pit construction, characterized in that: Including baffles; The lower part of the baffle is provided with a baffle ground-inserting inclined surface, and the baffle ground-inserting inclined surface is inserted into the ground; A fixed block is fixed on the upper side of the wall surface of the baffle, and the fixed block is connected to the rotating plug cylinder through a rotating pair. The rotating plug cylinder can rotate around the rotating pair, and the rotating plug cylinder is fixedly connected to the connecting rod away from the baffle. The connecting rod is inserted in the sliding sleeve rod and the connecting rod can slide along the length direction of the sliding sleeve rod. The upper surface of the sliding sleeve rod is provided with a sliding groove along the length direction of the sliding sleeve rod, and a threaded rod arranging frame I is fixed on the connecting rod and the threaded rod arranging frame I is located in the sliding groove, and a threaded rod arranging frame II is fixed on the sliding sleeve rod, the threaded rod arranging frame I and the threaded rod arranging frame II are located on the same straight line and both are located on the same side of the sliding sleeve rod, and the threaded rod arranging frame I and the threaded rod arranging frame II are provided with an internal thread structure I that matches the external thread structure I on the threaded rod, and the threaded rod is threadedly connected with the threaded rod arranging frame II and the threaded rod arranging frame I in sequence; The sliding sleeve rod is fixedly connected with a right-angle plug plate on the side away from the connecting rod. The right-angle plug plate is L-shaped as a whole, and includes a horizontal plate and a vertical plate vertically connected to each other. The vertical plate is inserted into the ground, and the horizontal plate is parallel to and in contact with the ground.

2. A temporary support device for deep foundation pit construction according to claim 1, characterized in that: The connecting rod is plugged and fixed with the rotating insert cylinder.

3. A temporary support device for deep foundation pit construction according to claim 1, characterized in that: The threaded rod is provided with a threaded rod adjusting socket at one end away from the threaded rod arranging frame.

4. A temporary support device for deep foundation pit construction according to claim 1, characterized in that: A matching fixing block 1 is fixed to the end of the threaded rod away from the threaded rod arranging frame I, and a matching fixing block 2 is fixed on the sliding sleeve rod. The positions of the matching fixing block 1 and the matching fixing block 2 correspond to each other and both are provided with internal thread structures II that match each other. The fixing screw is provided with an external thread structure II that matches the internal thread structure II, and the fixing screw is threadedly connected to the matching fixing block 2.

5. A temporary support device for deep foundation pit construction according to claim 1, characterized in that: A reinforcing plate is fixedly connected to the bottom of the baffle, and the reinforcing plate is a triangular supporting structure. The lower surface of the reinforcing plate is in contact with the ground, and the reinforcing plate and the fixing block are located on the same side of the baffle.

6. A temporary support device for deep foundation pit construction according to claim 5, characterized in that: Vertically arranged reinforcement rods are provided on both sides of the reinforcement plate, and the reinforcement rods are fixedly connected to the baffle.

7. A temporary support device for deep foundation pit construction according to claim 1, characterized in that: The baffle is provided with card slots on both sides in the vertical direction, and sliding rods are fixedly connected to both sides of the connecting baffle, the sliding rods match the card slots and are slidably connected to the card slots, and the connecting baffle is fixed to the card slots of the baffle through the sliding rods.

8. A temporary support device for deep foundation pit construction according to claim 1, characterized in that: A connecting plate is provided between the baffle and the fixing block; There are two fixing blocks in total, and the two fixing blocks are symmetrically arranged on the connecting plate.

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