Foundation pit engineering axial force servo inclined pile supporting mechanism

Abstract

The utility model relates to the technical field of foundation pit supporting, and discloses a foundation pit engineering axial force servo inclined pile supporting mechanism which comprises a foundation pit inner wall supporting plate and a supporting inclined pile, the supporting inclined pile is located in the foundation pit inner wall supporting plate, connecting blocks are fixedly installed on the two sides of the inner wall of the foundation pit inner wall supporting plate, and installation grooves are formed in the inner sides of the connecting blocks. And an axial force servo inclined pile connecting piece is movably mounted on the inner side of the mounting groove. The hydraulic rod rotates to be in a vertical state, the supporting inclined pile is supported at the bottom of a foundation pit through the supporting bottom plate, the ejector rod abuts against the first limiting rod, one end of the first limiting rod slides into the limiting hole in one end of the sliding rod, and therefore the overall connecting and supporting structure between the supporting plates on the inner wall of the foundation pit is more stable; when vibration force of the working ground of a large machine with a large number of construction sites is large and a gravity sensor in the axial force servo inclined pile connecting piece senses that downward acting force is increased, the bottom of the hydraulic rod ascends downwards, and upward supporting force for supporting the bottom of the inclined pile is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to an axial force servo inclined pile support mechanism for foundation pit engineering. Background Art

[0002] Inclined pile support is a shallow foundation pit support method, mainly suitable for large-scale excavation, shallow depth or mechanical excavation of foundation pits. It achieves the support effect by nailing the horizontal retaining plate to the inside of the column pile, supporting the outside of the column pile with an inclined brace, and supporting the bottom of the inclined brace on the wooden support pile, while backfilling the soil on the inside of the retaining plate. This method can effectively resist the lateral soil pressure and protect the stability of the foundation pit. At present, the axial force servo system is used to enhance the support stability of the support column. However, there are usually more large-scale mechanical movements at the construction site, which causes greater ground vibrations. At the same time, under the influence of gravity, the sinking force of the inclined pile support will increase, resulting in instability of the support structure of the inner wall of the foundation pit. The inclined pile support may sink, which greatly reduces the stability of the overall support structure of the foundation pit.

[0003] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an axial force servo inclined pile supporting mechanism for foundation pit engineering, which supports the supporting inclined piles at the bottom of the foundation pit by rotating the hydraulic rod to a vertical state, and supporting the supporting bottom plate through the supporting bottom plate, and the top rod supports the first limiting rod, so that one end of the first limiting rod slides into the limiting hole at one end of the sliding rod, thereby making the overall connection support structure between the supporting plates on the inner wall of the foundation pit more stable. When there are many large-scale working machines on the construction site and the ground vibration force is large, the gravity sensor inside the axial force servo inclined pile connecting piece senses an increase in the downward force, and the bottom of the hydraulic rod rises downward, so that the upward supporting force of the bottom of the supporting inclined pile is increased, thereby solving the problem that the overall support stability of the inner wall of the foundation pit is reduced due to the sinking of the supporting inclined pile due to gravity and vibration force.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] An axial force servo inclined pile support mechanism for foundation pit engineering, comprising a support plate on the inner wall of the foundation pit and a support inclined pile. The support inclined pile is located inside the support plate on the inner wall of the foundation pit. Connecting blocks are fixedly installed on both sides of the inner wall of the support plate on the inner wall of the foundation pit. Installation grooves are formed inside the connecting blocks. An axial force servo inclined pile connecting piece is movably installed inside the installation grooves. A push rod is fixedly installed on the outer side of the axial force servo inclined pile connecting piece through an electric telescopic rod, and the push rod extends into the connecting block. Fixing plates are fixedly installed inside both ends of the support plate on the inner wall of the foundation pit. A first limiting rod is movably installed inside the fixing plates. A first spring is sleeved on the outer side of the first limiting rod. A receiving cavity is formed at the bottom of the support inclined pile. Hydraulic rods are rotatably installed on both sides inside the receiving cavity. The ends of the hydraulic rods close to each other are rotatably installed with a support bottom plate.

[0007] Preferably, a gravity sensor inside the axial force servo inclined pile connecting piece is electrically connected to the hydraulic rod. One end of the first limiting rod penetrates and slides into a limiting hole at one end of a sliding rod.

[0008] Preferably, a sealing plate is rotatably installed at the bottom of the receiving cavity. A handle is fixedly installed at the bottom of the sealing plate.

[0009] Preferably, fixing blocks are installed on both sides of the top of the support inclined pile. Grooves are formed at the tops of the fixing blocks, and the support bottom plate can be movably installed inside the grooves.

[0010] Preferably, limiting grooves are formed on the sides of the axial force servo inclined pile connecting piece close to each other. Limiting blocks extending into the limiting grooves are fixedly installed at both ends of the support inclined pile.

[0011] Preferably, cavities are formed on both sides of the bottom of the support inclined pile. A second limiting rod is movably installed through the cavities. A baffle located inside the cavities is fixedly installed on the outer side of the second limiting rod. A second spring located inside the cavities is sleeved on the outer side of the second limiting rod, and the second spring is fixedly connected to the baffle.

[0012] Compared with the prior art, the present utility model provides an axial force servo inclined pile support mechanism for foundation pit engineering, having the following beneficial effects: When the hydraulic rods rotate to a vertical state, the support inclined pile is supported by the support bottom plate at the bottom of the foundation pit. The push rod presses against the first limiting rod, causing one end of the first limiting rod to slide into the limiting hole at one end of the sliding rod, thereby making the overall connection support structure between the support plates on the inner wall of the foundation pit more stable. When there is a large ground vibration force during the operation of many large mechanical devices at the construction site, when the gravity sensor inside the axial force servo inclined pile connecting piece senses an increase in the downward acting force, the bottom of the hydraulic rod rises upward, increasing the upward support force at the bottom of the support inclined pile, solving the problem that the overall support stability of the inner wall of the foundation pit is reduced due to gravity and vibration force causing the support inclined pile to sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front view structural schematic diagram of the present utility model;

[0014] Figure 2 is a side view split structural schematic diagram of the present utility model;

[0015] Figure 3 is a rear view sectional split structural schematic diagram of the supporting inclined pile of the present utility model;

[0016] Figure 4 is a partial top view sectional structural schematic diagram of the inner wall support plate of the foundation pit of the present utility model;

[0017] Figure 5 is a partial front view sectional structural schematic diagram of the supporting inclined pile of the present utility model.

[0018] In the figure: 1. Inner wall support plate of the foundation pit; 101. Connecting block; 102. Installation groove; 103. Slide bar; 104. Fixed plate; 105. First limiting rod; 106. First spring; 2. Supporting inclined pile; 201. Axial force servo inclined pile connecting piece; 202. Thrust rod; 203. Storage cavity; 204. Hydraulic rod; 205. Supporting bottom plate; 206. Sealing plate; 207. Handle; 208. Fixed block; 209. Groove; 210. Limiting groove; 211. Limiting block; 212. Cavity; 213. Second limiting rod; 214. Baffle; 215. Second spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] As introduced in the background art, there are deficiencies in the prior art. To solve the above technical problems, the present application proposes a supporting mechanism for axial force servo inclined piles in foundation pit engineering.

[0021] Please refer to Figures 1 - 5, A shaft force servo inclined pile support mechanism for foundation pit engineering, including a foundation pit inner wall support plate 1 and a support inclined pile 2. The support inclined pile 2 is located inside the foundation pit inner wall support plate 1. On both sides of the inner wall of the foundation pit inner wall support plate 1, connecting blocks 101 are fixedly installed. An installation groove 102 is opened on the inner side of the connecting block 101. A shaft force servo inclined pile connecting piece 201 is movably installed inside the installation groove 102. A top rod 202 is fixedly installed on the outer side of the shaft force servo inclined pile connecting piece 201 through an electric telescopic rod, and the top rod 202 extends into the connecting block 101. Fixed plates 104 are fixedly installed inside both ends of the foundation pit inner wall support plate 1. A first limiting rod 105 is movably installed inside the fixed plate 104. A first spring 106 is sleeved on the outer side of the first limiting rod 105. A receiving cavity 203 is opened at the bottom of the support inclined pile 2. Hydraulic rods 204 are rotatably installed on both sides inside the receiving cavity 203. A support bottom plate 205 is rotatably installed at the ends where the hydraulic rods 204 are close to each other. The gravity sensor inside the shaft force servo inclined pile connecting piece 201 is electrically connected to the hydraulic rods 204. One end of the first limiting rod 105 penetrates and slides into the limiting hole at one end of the sliding rod 103.

[0022] Specifically, when the hydraulic rods 204 rotate to the vertical state, the support inclined pile 2 is supported by the support bottom plate 205 on the bottom of the foundation pit. Due to the elastic force of the first spring 106, the first limiting rod 105 slides inward inside the foundation pit inner wall support plate 1. Then, after the sliding rod 103 slides into the foundation pit inner wall support plate 1, the top rod 202 presses against the first limiting rod 105, causing one end of the first limiting rod 105 to slide into the limiting hole at one end of the sliding rod 103, thereby making the overall connection and support structure between the foundation pit inner wall support plates 1 more stable. When there is a large ground vibration force during the operation of many large-scale machines at the construction site, when the gravity sensor inside the shaft force servo inclined pile connecting piece 201 senses an increase in the downward acting force (the model of the gravity sensor is similar to YHR-4F, which is prior art. The connection relationship between the gravity sensor and the hydraulic rods 204 is existing and simple circuit control technology. The gravity sensor transmits signals to the hydraulic rods 204 to make them perform telescopic operations, which is common knowledge for those skilled in the art and will not be elaborated here), the bottom of the hydraulic rods 204 rises downward, increasing the upward support force at the bottom of the support inclined pile 2, solving the problem that the overall support stability of the foundation pit inner wall is reduced due to the subsidence of the support inclined pile 2 caused by gravity and vibration force.

[0023] Furthermore, a sealing plate 206 is rotatably installed at the bottom of the receiving cavity 203. A handle 207 is fixedly installed at the bottom of the sealing plate 206; when the support inclined pile 2 is transported, the hydraulic rods 204 rotate and are received inside the receiving cavity 203. The hydraulic rods 204 are protected by closing the sealing plate 206, avoiding the situation that the hydraulic rods 204 are deformed due to collision during transportation, resulting in a reduction in support stability. By holding the handle 207, it is convenient to open the sealing plate 206;

[0024] Furthermore, fixing blocks 208 are installed on both sides of the top of the supporting inclined pile 2. A groove 209 is formed in the top of the fixing block 208, and the supporting bottom plate 205 can be movably installed inside the groove 209;

[0025] Specifically, when the depth of the foundation pit is relatively deep, multiple layers of inner wall support plates 1 of the foundation pit are required to support the inner wall of the foundation pit. At this time, the supporting bottom plate 205 at the bottom of the upper-layer supporting inclined pile 2 slides into the inside of the groove 209, so that the overall vertical supporting force of the multiple-layer supporting inclined pile 2 is more stable;

[0026] Furthermore, limiting grooves 210 are formed on the sides of the axial force servo inclined pile connectors 201 close to each other, and limiting blocks 211 extending into the inside of the limiting grooves 210 are fixedly installed at both ends of the supporting inclined pile 2;

[0027] Specifically, when the supporting inclined pile 2 is installed between the axial force servo inclined pile connectors 201, the limiting blocks 211 slide into the inside of the limiting grooves 210, so that the connection between the supporting inclined pile 2 and the axial force servo inclined pile connectors 201 is more stable;

[0028] Furthermore, cavities 212 are formed on both sides of the bottom of the supporting inclined pile 2. A second limiting rod 213 is movably installed through the inside of the cavity 212. A baffle 214 located inside the cavity 212 is fixedly installed on the outer side of the second limiting rod 213. A second spring 215 located inside the cavity 212 is sleeved on the outer side of the second limiting rod 213, and the second spring 215 is fixedly connected to the baffle 214;

[0029] Specifically, when the hydraulic rod 204 is received inside the receiving cavity 203 and the sealing plate 206 is closed, due to the elastic force of the second spring 215, the mutually approaching ends of the second limiting rods 213 slide under the bottom of the sealing plate 206 for limiting, so as to prevent the sealing plate 206 from being opened during transportation, resulting in damage to the hydraulic rod 204 due to collision.

[0030] Working principle: First, the staff slides the limit block 211 into the inside of the limit groove 210, and fixedly connects the support inclined pile 2 and the axial force servo inclined pile connector 201 through bolts. Then, one end of the axial force servo inclined pile connector 201 is fixedly installed inside the installation groove 102 through bolts. The electric telescopic rod extends to make the ejector rod 202 press against the first limit rod 105, so that one end of the first limit rod 105 slides into the limit hole at one end of the slide rod 103, making the connection between the inner wall support plates 1 of the foundation pit more firm, and thus making the inner wall support of the inner wall support plate 1 of the foundation pit more stable. Then, the hydraulic rod 204 is rotated to the vertical state to make the support bottom plate 205 support the bottom of the support inclined pile 2. When large-scale machinery at the construction site works and generates large vibrations, when the downward force of the support inclined pile 2 increases due to the ground vibration force, at this time, the gravity sensor inside the axial force servo inclined pile connector 201 senses the increase in gravity, and controls the hydraulic rod 204 to extend downward through the controller, so that the upward support force of the support inclined pile 2 is increased, thus avoiding the reduction of the stability of the inner wall support structure of the foundation pit caused by the sinking of the support inclined pile 2.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A foundation pit engineering axial force servo inclined pile support mechanism, comprising a foundation pit inner wall support plate (1) and supporting inclined piles (2), wherein the supporting inclined piles (2) are located inside the foundation pit inner wall support plate (1), and are characterized in that: The inner wall of the foundation pit inner wall support plate (1) is fixedly mounted with connection blocks (101) on both sides thereof, the inner side of the connection block (101) is provided with a mounting groove (102), the inner side of the mounting groove (102) is movably mounted with an axial force servo inclined pile connection piece (201), the outer side of the axial force servo inclined pile connection piece (201) is fixedly mounted with a push rod (202) via an electric telescopic rod, and the push rod (202) extends to the inside of the connection block (101), and the foundation pit inner wall support plate (1 ) are fixedly installed inside the two ends of the support pile (2), a first limiting rod (105) is movably installed inside the fixed plate (104), a first spring (106) is sleeved and installed on the outer side of the first limiting rod (105), a storage cavity (203) is provided at the bottom of the support inclined pile (2), hydraulic rods (204) are rotatably installed on both sides of the storage cavity (203), and a supporting bottom plate (205) is rotatably installed at one end of the hydraulic rod (204) close to each other.

2. The foundation pit engineering axial force servo inclined pile support mechanism according to claim 1, characterized in that: The gravity sensor inside the axial force servo inclined pile connector (201) is electrically connected to the hydraulic rod (204), and one end of the first limiting rod (105) penetrates and slides into the limiting hole at one end of the sliding rod (103).

3. The foundation pit engineering axial force servo inclined pile support mechanism according to claim 1, characterized in that: A sealing plate (206) is rotatably mounted on the bottom of the storage cavity (203), and a handle (207) is fixedly mounted on the bottom of the sealing plate (206).

4. The foundation pit engineering axial force servo inclined pile support mechanism according to claim 1, characterized in that: Fixed blocks (208) are installed on both sides of the top of the supporting inclined pile (2), a groove (209) is opened on the top of the fixed block (208), and the supporting bottom plate (205) can be movably installed inside the groove (209).

5. The foundation pit engineering axial force servo inclined pile support mechanism according to claim 1, characterized in that: A limiting groove (210) is provided on one side of the axial force servo inclined pile connecting pieces (201) close to each other, and limiting blocks (211) extending into the limiting groove (210) are fixedly mounted on both ends of the supporting inclined pile (2).

6. The foundation pit engineering axial force servo inclined pile support mechanism according to claim 1, characterized in that: A cavity (212) is provided on both sides of the bottom of the supporting inclined pile (2); a second limiting rod (213) is movably installed inside the cavity (212); a baffle (214) located inside the cavity (212) is fixedly installed on the outer side of the second limiting rod (213); a second spring (215) located inside the cavity (212) is sleeved and installed on the outer side of the second limiting rod (213); and the second spring (215) is fixedly connected to the baffle (214).

Images