Double-row pile foundation pit supporting structure

Abstract

The utility model relates to the field of foundation pit supporting, in particular to a double-row pile foundation pit supporting structure which comprises a supporting seat used for supporting a foundation pile plate. And the adjusting mechanism is installed in the supporting base and used for adjusting the distance between the foundation pile plates, and sliding grooves are formed in the upper surface and the lower surface in the supporting base correspondingly. According to the double-row pile foundation pit supporting structure, through the arrangement of the supporting base, the sliding groove, the adjusting mechanism, the mounting plate and the foundation pile plates, the distance between the foundation pile plates can be adjusted according to the size of a foundation pit, the lead screws are driven to rotate by rotating the handle, when the lead screws rotate, the two sets of external movable blocks are close to each other due to the fact that the thread tapping directions of the two sets of lead screws are opposite, and the foundation pit is supported. And in the approaching process, the connecting rods on the two sides are driven to be unfolded to push the support and the fixing rod at the other end to stretch out and draw back in the supporting seat, so that the mounting plates and the foundation pile plates on the two sides are driven to stretch out and draw back, the distance between the foundation pile plates can be adjusted, and meanwhile operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the field of foundation pit support, in particular to a double-row pile foundation pit support structure. Background Technique

[0002] Foundation pit support is a support, reinforcement and protection measure for the side wall and the surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. The double-row pile foundation pit support refers to a retaining structure composed of a rigid frame and a capping beam connected by front and rear rows of retaining piles and beams arranged along the side wall of the foundation pit.

[0003] After retrieval, a utility model double-row steel sheet pile foundation pit support structure with the publication number of CN218116472U includes a front row of steel sheet piles and a rear row of steel sheet piles. A channel steel inner frame is welded and fixed on the horizontal center line between the front row of steel sheet piles and the rear row of steel sheet piles. A main cross beam is welded and fixed inside the channel steel inner frame. The top and bottom of one side of the main cross beam are welded and fixed with first inclined struts. By setting a limiting plate, a through hole and side nails, when in use, the side nails are passed through the through hole and driven into the side wall of the foundation pit until the limiting plate is close to the inner sides of the front row of steel sheet piles and the rear row of steel sheet piles. In this way, the side nails can be used as the connection between the front row of steel sheet piles and the rear row of steel sheet piles and the side wall of the foundation pit, and the outer sides of the front row of steel sheet piles and the rear row of steel sheet piles are anchored, which is beneficial to improving the overall stability of the support structure. The problem solved is the lack of necessary connection between the double-row piles and the side wall of the foundation pit, and the overall stability of the support structure is not high enough.

[0004] The existing double-row pile foundation pit support structure cannot effectively adjust the support structure according to the distance between the double-row piles during use, making the construction difficult. And in the above comparative case of the double-row steel sheet pile foundation pit support structure, it is impossible to meet the requirement of adjusting the length of the support structure according to the size of the foundation pit during use.

[0005] Therefore, it is very necessary to invent a double-row pile foundation pit support structure to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a double-row pile foundation pit support structure. By rotating the handle to drive the screw rod to rotate, when the screw rod rotates, due to the opposite threading directions of the two screw rods, the two external movable blocks are moved closer to each other. During the approaching process, the connecting rods on both sides are driven to expand and push the brackets and fixed rods at the other ends to expand and contract in the support seats, thereby driving the mounting plates and the base pile plates on both sides to expand and contract. Such a setting can not only adjust the distance between the base pile plates, but also is convenient and fast to operate, so as to solve the problems raised in the above background technique.

[0007] To achieve the above object, the present utility model provides the following technical solutions: A double-row pile foundation pit support structure, including a support base for supporting a base pile plate;

[0008] An adjusting mechanism is installed inside the support base for adjusting the distance of the base pile plate. Sliding grooves are provided on both the upper and lower surfaces inside the support base, and mounting plates are fixedly installed at both ends of the adjusting mechanism;

[0009] A base pile plate is installed on one side of the mounting plate for foundation pit support.

[0010] Preferably, the adjusting mechanism includes a lead screw, a handle, a movable block, a connecting rod, a bracket, a slider, and a fixed rod. The lead screw is arranged inside the support base, a handle is fixedly installed at the upper end of the lead screw, the movable block is movably connected to the outside of the lead screw, the connecting rods are movably connected to both sides of the movable block, a bracket is arranged at one end of the connecting rod, sliders are fixedly installed on both the upper and lower sides of the bracket, and fixed rods are fixedly installed on one side of the bracket.

[0011] Preferably, two sets of lead screws are provided, and the threading directions of the two sets of lead screws are opposite.

[0012] Preferably, the sliders fixedly installed on both the upper and lower sides of the bracket are slidably connected to the sliding grooves provided inside the support base, and the sliding grooves and the sliders are used in cooperation.

[0013] Preferably, bolts penetrate through both the upper and lower sides of the mounting plate, reinforcing rods are fixedly installed on one side of the mounting plate, the base pile plate is threadedly connected to the mounting plate, and the reinforcing rods penetrate through the base pile plate.

[0014] Preferably, a clamping block is fixedly installed on one side of the base pile plate, a clamping groove is fixedly installed on the other side of the base pile plate, an anti-corrosion layer is provided on one surface of the base pile plate, and the material of the anti-corrosion layer is vinyl ester resin.

[0015] In the above technical solution, the technical effects and advantages provided by the present utility model are:

[0016] Through the settings of the support base, the sliding grooves, the adjusting mechanism, the mounting plate, and the base pile plate, the distance of the base pile plate can be adjusted according to the size of the foundation pit. By rotating the handle to drive the rotation of the lead screw, when the lead screw rotates, due to the opposite threading directions of the two sets of lead screws, the two external movable blocks are moved closer to each other. During the approaching process, the connecting rods on both sides are driven to expand and push the brackets and fixed rods at the other ends to stretch inside the support base, thereby driving the mounting plates and the base pile plates on both sides to stretch. Such a setting can not only adjust the distance of the base pile plate, but also is convenient and fast to operate;

[0017] Through the settings of the mounting plate, reinforcement rod, pile base plate, clamping block and clamping groove, not only can the firmness between the pile base plate and the foundation pit be strengthened, but also the splicing connection is convenient. Through the clamping blocks and clamping grooves on both sides of the pile base plate, it is convenient to put the clamping blocks between multiple pile base plates into the clamping grooves for splicing and assembly. At the same time, the reinforcement rods penetrating through the pile base plate enable the reinforcement rods to be inserted into the foundation pit to strengthen the overall firmness. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0020] Figure 2 It is a schematic diagram of the internal structure of the support base of the present utility model;

[0021] Figure 3 It is a schematic diagram of the structure of the adjusting mechanism of the present utility model;

[0022] It is a schematic diagram of the structure of the mounting plate of the present utility model;

[0023] Figure 4 It is a schematic diagram of the structure of the pile base plate of the present utility model.

[0024] Description of the Reference Numerals in the Drawings:

[0025] 1. Support base; 2. Chute; 3. Adjusting mechanism; 301. Lead screw; 302. Handle; 303. Movable block; 304. Connecting rod; 305. Bracket; 306. Slide block; 307. Fixed rod; 4. Mounting plate; 5. Bolt; 6. Reinforcement rod; 7. Pile base plate; 8. Clamping block; 9. Clamping groove; 10. Anticorrosion layer. Detailed Embodiment

[0026] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail with reference to the drawings.

[0027] The present utility model provides a double-row pile foundation pit support structure as Figure 5 shown, including a support base 1 for supporting the pile base plate 7;

[0028] An adjusting mechanism 3 is installed inside the support base 1 for adjusting the distance of the pile base plate 7. Chutes 2 are provided on the upper and lower surfaces of the inside of the support base 1, and mounting plates 4 are fixedly installed at both ends of the adjusting mechanism 3;

[0029] The base pile plate 7 is installed on one side of the mounting plate 4 and is used for foundation pit support. By rotating the handle 302 to drive the screw rod 301 to rotate, when the screw rod 301 rotates, due to the opposite threading directions of the two screw rods 301, the two external movable blocks 303 are moved closer to each other. During the approaching process, the connecting rods 304 on both sides are driven to expand mutually, pushing the brackets 305 and the fixed rods 307 at the other ends to expand and contract within the support base 1, thereby driving the mounting plates 4 and the base pile plates 7 on both sides to expand and contract. Such a setting can not only adjust the distance of the base pile plates 7, but also is convenient and fast to operate.

[0030] As Figures 1-5 、 Figure 1 and Figure 2 shown, the adjusting mechanism 3 includes a screw rod 301, a handle 302, a movable block 303, a connecting rod 304, a bracket 305, a slider 306, and a fixed rod 307. The screw rod 301 is arranged inside the support base 1, the upper end of the screw rod 301 is fixedly installed with a handle 302, the outer part of the screw rod 301 is movably connected with a movable block 303, the two sides of the movable block 303 are movably connected with connecting rods 304, one end of the connecting rod 304 is provided with a bracket 305, the upper and lower sides of the bracket 305 are fixedly installed with sliders 306, and one side of the bracket 305 is fixedly installed with a fixed rod 307. By driving the screw rod 301 to rotate to drive the movable block 303 to move up and down, the connecting rods 304, the brackets 305, and the mounting plate 4 on both sides are pushed to expand and contract, so as to adjust the mounting plate 4 and the base pile plate 7 according to the distance between the foundation pits.

[0031] As Figure 3 shown, two screw rods 301 are provided, and the threading directions of the two screw rods 301 are opposite. Through the setting of the opposite threading directions of the two screw rods 301, during the rotation process, the two movable blocks 303 are driven to approach and move away from each other, thereby pushing the mounting plates 4 on both sides to expand and contract for adjustment.

[0032] As Figure 3 and Figure 2 shown, the sliders 306 fixedly installed on the upper and lower sides of the bracket 305 are slidably connected with the chute 2 opened inside the support base 1. The chute 2 and the sliders 306 are used in cooperation. When the bracket 305 moves inside the support base 1, the sliders 306 on the upper and lower sides of the bracket 305 play a role in ensuring the stability during movement.

[0033] As Figure 3 、 Figure 1 and Figure 2 shown, bolts 5 penetrate through the upper and lower sides of the mounting plate 4, reinforcing rods 6 are fixedly installed on one side of the mounting plate 4, the base pile plate 7 is threadedly connected with the mounting plate 4, the reinforcing rods 6 penetrate through the base pile plate 7, and the reinforcing rods 6 penetrating through the base pile plate 7 are inserted into the foundation pit to strengthen the overall firmness.

[0034] As Figure 4 , Figure 1 and Figure 4 Figure 5 shown, a clamping block 8 is fixedly installed on one side of the foundation pile plate 7, a clamping groove 9 is fixedly installed on the other side of the foundation pile plate 7, an anti-corrosion layer 10 is arranged on one side surface of the foundation pile plate 7, the material of the anti-corrosion layer 10 is vinyl ester resin, and the anti-corrosion layer 10 on one side of the foundation pile plate 7 can play an anti-corrosion function, thereby improving the service life of the foundation pile plate 7.

[0035] The working principle of this utility model: First, the foundation pile plate 7 is sleeved outside the reinforcing rod 6 on one side of the mounting plate 4, and then connected by bolts 5. Then, the whole device is placed into the foundation pit. Next, according to the distance between the foundation pits, the handle 302 is rotated to drive the screw rod 301 to rotate. When the screw rod 301 rotates, due to the opposite threading directions of the two screw rods 301, the two external movable blocks 303 are moved closer to each other. During the approaching process, the connecting rods 304 on both sides are driven to expand mutually, thereby pushing the brackets 305 and the fixed rods 307 at the other end to expand and contract in the support base 1, so as to push the mounting plate 4 and the foundation pile plate 7 to expand and contract, and insert the foundation pile plate 7 and the internal reinforcing rod 6 around the foundation pit for reinforcement. Then, according to the size of the foundation pit, the foundation pile plates 7 need to be spliced. The clamping groove 9 on one side of another group of foundation pile plates 7 is sleeved in the clamping block 8 on one side of the foundation pile plate 7 for assembly and splicing. By means of the mutual splicing of the clamping block 8 and the clamping groove 9, the connectivity is improved. In this way, it not only meets foundation pits of different sizes, but also provides convenience for stacking during transportation of the foundation pile plates 7. Just like this, the use process of this double-row pile foundation pit support structure is completed.

[0036] Only some exemplary embodiments of the present utility model are described by way of illustration above. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present utility model.

Claims

1. A double-row pile foundation pit support structure, characterized in that: Comprising a support base (1) for supporting the base pile plate (7); An adjusting mechanism (3) is installed inside the support base (1) for adjusting the distance of the base pile plate (7). The upper and lower surfaces inside the support base (1) are both provided with sliding grooves (2), and both ends of the adjusting mechanism (3) are fixedly installed with mounting plates (4); A base pile plate (7) is installed on one side of the mounting plate (4) for foundation pit support.

2. The double-row pile foundation pit support structure according to claim 1, characterized in that: The adjusting mechanism (3) includes a lead screw (301), a handle (302), a movable block (303), a connecting rod (304), a bracket (305), a slider (306), and a fixed rod (307). The lead screw (301) is arranged inside the support base (1), the upper end of the lead screw (301) is fixedly installed with a handle (302), the outer part of the lead screw (301) is movably connected with a movable block (303), both sides of the movable block (303) are movably connected with connecting rods (304), one end of the connecting rod (304) is provided with a bracket (305), the upper and lower sides of the bracket (305) are fixedly installed with sliders (306), and one side of the bracket (305) is fixedly installed with a fixed rod (307).

3. The double-row pile foundation pit support structure according to claim 2, characterized in that: The lead screw (301) is provided in two groups, and the threading directions of the two groups of lead screws (301) are opposite.

4. A double-row pile foundation pit support structure according to claim 2, characterized in that: The sliders (306) fixedly installed on the upper and lower sides of the bracket (305) are slidably connected with the sliding grooves (2) opened inside the support base (1), and the sliding grooves (2) are used in cooperation with the sliders (306).

5. A double-row pile foundation pit support structure according to claim 1, characterized in that: Bolts (5) penetrate through the upper and lower sides of the mounting plate (4), reinforcing rods (6) are fixedly installed on one side of the mounting plate (4), the base pile plate (7) is threadedly connected with the mounting plate (4), and the reinforcing rods (6) penetrate through the base pile plate (7).

6. A double-row pile foundation pit support structure according to claim 1, characterized in that: A clamping block (8) is fixedly installed on one side of the base pile plate (7), a clamping groove (9) is fixedly installed on the other side of the base pile plate (7), an anti-corrosion layer (10) is arranged on one side surface of the base pile plate (7), and the material of the anti-corrosion layer (10) is vinyl ester resin.

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