Construction device for underground diaphragm wall of soft soil subway foundation pit

Abstract

The utility model belongs to the technical field of engineering construction, and particularly relates to a soft soil iron foundation pit underground diaphragm wall construction device which comprises a machine frame, a base, universal wheels arranged at the four corners of the bottom of the base, stand columns arranged at the four corners of the top of the base and a top base arranged at the tops of the stand columns. A supporting assembly, comprising a shaft sleeve arranged in the middle of the top of a top seat, a double-section reverse screw rod arranged in the shaft sleeve, a mounting frame arranged at the top of the top seat, a servo motor arranged at the top of the mounting frame, and a sliding nut arranged on the surface of the double-section reverse screw rod, wherein the output end of the servo motor is connected with the double-section reverse screw rod; the connecting rod is arranged on one side of the sliding nut; the side plate is arranged at one end of the connecting rod; the fixing assembly comprises a curved frame arranged at the top of the base and a lifting air cylinder arranged at the top of the curved frame; the device is reasonable in structure, convenient to move and fix in the using process, high in flexibility and good in stability, meanwhile, the side wall of the geosyncline can be prevented from collapsing, and the construction progress is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to an underground continuous wall construction device for a soft soil iron foundation pit. Background Art

[0002] Underground continuous wall is a foundation project that uses a trenching machine on the ground to dig a narrow trench along the peripheral axis of the deep excavation project under the condition of mud wall protection. After the trench is cleared, a steel cage is hung in the trench, and then underwater concrete is poured using the conduit method to build a unit trench section. This is done section by section to build a continuous reinforced concrete wall underground as a water interception, anti-seepage, load-bearing and water-retaining structure.

[0003] However, after the trench is excavated, the side walls of the trench may easily collapse due to the soft soil and other reasons, affecting the subsequent placement of the steel cage and concrete pouring.

[0004] Based on the above problems, we propose an underground continuous wall construction device for soft soil subway foundation pit. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the problems existing in the prior art, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide an underground continuous wall construction device for a soft soil subway foundation pit, which is easy to move and fix during use, has high flexibility and good stability, and can prevent the side wall of the trench from collapsing, thereby ensuring the construction progress.

[0008] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0009] A soft soil underground continuous wall construction device, comprising:

[0010] The frame comprises a base, universal wheels arranged at four corners of the bottom of the base, columns arranged at four corners of the top of the base, and a top seat arranged at the top of the columns;

[0011] The support assembly includes a sleeve disposed in the middle of the top of the top seat, a double-stage reverse screw disposed inside the sleeve, a mounting frame disposed on the top of the top seat, a servo motor disposed on the top of the mounting frame and having an output end connected to the double-stage reverse screw, a sliding nut disposed on the surface of the double-stage reverse screw, a connecting rod disposed on one side of the sliding nut, and a side plate disposed at one end of the connecting rod;

[0012] The fixing assembly comprises a curved frame arranged on the top of the base, a lifting cylinder arranged on the top of the curved frame, a fixed support plate arranged on the bottom of the lifting cylinder, and a fixed cone arranged on the bottom of the fixed support plate.

[0013] As a preferred solution of the soft soil underground continuous wall construction device of the utility model, a self-locking structure is arranged on the universal wheel.

[0014] As a preferred solution of the underground continuous wall construction device for a soft soil subway foundation pit described in the utility model, an independent power supply is arranged on one side of the top of the top seat, and the independent power supply is a rechargeable lithium battery.

[0015] As a preferred solution of the underground continuous wall construction device for a soft soil subway foundation pit described in the utility model, a rotating sleeve matching with a double-stage reverse screw is arranged in the middle of the top of the base.

[0016] As a preferred solution of the soft soil underground continuous wall construction device of the utility model, wherein: gallows are provided at both ends of the connecting rod, and the connecting rod is connected to the sliding nut and the side plate through the gallows.

[0017] As a preferred solution of the underground continuous wall construction device for a soft soil subway foundation pit described in the utility model, a rubber gasket is arranged on the surface of the side plate.

[0018] As a preferred solution of the underground continuous wall construction device for a soft soil subway foundation pit described in the utility model, through holes matching with the output ends of the lifting cylinders are provided on both sides of the top of the base.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The servo motor rotates to drive the double-stage reverse screw to rotate. During the rotation of the double-stage reverse screw, the movable nut is driven to slide up and down on the surface of the double-stage reverse screw. During the up and down sliding of the sliding nut, the connecting rod is driven to swing. The swing of the connecting rod drives the side plate to move left and right, thereby supporting the side wall of the trough and preventing the side wall of the trough from collapsing.

[0021] 2. In addition, the fixed support plate and the fixed cone are driven downward by the lifting cylinder, and the fixed support plate and the fixed cone are in contact with the ground, which can improve stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the implementation of the utility model, the utility model will be described in detail below in combination with the drawings and detailed implementation. Obviously, the drawings described below are only some implementations of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the structure of the support assembly of the utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the fixing component of the utility model.

[0026] In the figure; 100 frame, 110 base, 120 universal wheel, 130 column, 140 top seat, 200 support assembly, 210 bushing, 220 double-stage reverse screw, 230 mounting frame, 240 servo motor, 250 sliding nut, 260 connecting rod, 270 support plate, 300 fixing assembly, 310 curved frame, 320 lifting cylinder, 330 fixed support plate, 340 fixed cone. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the implementation of the present invention, for the sake of convenience, the cross-sectional diagram showing the device structure will not be partially enlarged according to the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The utility model provides the following technical solutions: a soft soil underground continuous wall construction device, which is easy to move and fix during use, has high flexibility and good stability, and can prevent the side wall of the ground trench from collapsing, thereby ensuring the construction progress;

[0032] Figures 1 to 3 The figure shows a schematic structural diagram of an embodiment of a soft soil underground continuous wall construction device of the utility model, the main body of which includes a frame 100, a support assembly 200 and a fixing assembly 300;

[0033] The frame 100 includes a base 110, universal wheels 120 installed at the four corners of the bottom of the base 110, columns 130 installed at the four corners of the top of the base 110, and a top seat 140 installed on the top of the column 130. A self-locking structure is installed on the universal wheel 120, and an independent power supply is installed on one side of the top of the top seat 140, and the independent power supply is a rechargeable lithium battery. Further, the base 110 is used to support the column 130 and the universal wheel 120, the column 130 is used to support the top seat 140, the universal wheel 120 is used to facilitate the movement of the equipment, and the top seat 140 is used to support components such as the shaft sleeve 210;

[0034] The support assembly 200 includes a sleeve 210 installed in the middle of the top of the top seat 140, a double-stage reverse screw 220 installed inside the sleeve 210, a mounting frame 230 installed on the top of the top seat 140, a servo motor 240 installed on the top of the mounting frame 230 and having an output end connected to the double-stage reverse screw 220, a sliding nut 250 installed on the surface of the double-stage reverse screw 220, a connecting rod 260 installed on one side of the sliding nut 250, and a side plate 270 installed at one end of the connecting rod 260. A rotating sleeve matching the double-stage reverse screw 220 is installed in the middle of the top of the base 110, and the connecting rod 260 is installed. 0 is installed with a gallows at both ends, and the connecting rod 260 is connected with the sliding nut 250 and the side plate 270 through the gallows, and the surface of the side plate 270 is bonded with a rubber gasket. Further, the sleeve 210 is used to carry the double-stage reverse screw 220, and the double-stage reverse screw 220 is used to drive the sliding nut 250 to move, the mounting frame 230 is used to carry the servo motor 240, and the servo motor 240 is used to drive the double-stage reverse screw 220 to rotate, the sliding nut 250 is used to drive the connecting rod 260 to swing, and the connecting rod 260 is used to drive the side plate 270 to move, and the side plate 270 is used to support the side wall of the trough to prevent collapse;

[0035] The fixing assembly 300 includes a curved frame 310 installed on the top of the base 110, a lifting cylinder 320 installed on the top of the curved frame 310, a fixed support plate 330 installed on the bottom of the lifting cylinder 320, and a fixed cone 340 installed on the bottom of the fixed support plate 330. Through holes matching the output ends of the lifting cylinder 320 are installed on both sides of the top of the base 110. Furthermore, the curved frame 310 is used to carry the lifting cylinder 320, the lifting cylinder 320 is used to drive the fixed support plate 330 to move up and down, and the fixed support plate 330 and the fixed cone 340 are used to contact the ground to improve stability.

[0036] Combination Figure 1-Figure 3 , a soft soil subway foundation pit underground continuous wall construction device of this embodiment, the specific actions are as follows: the servo motor 240 rotates to drive the double-stage reverse screw 220 to rotate, and the double-stage reverse screw 220 drives the movable nut to slide up and down on the surface of the double-stage reverse screw 220 during the rotation process, and the sliding nut 250 drives the connecting rod 260 to swing during the up and down sliding process, and the swing of the connecting rod 260 drives the side plate 270 to move left and right, so as to support the side wall of the trough and prevent the side wall of the trough from collapsing; in addition, the fixed support plate 330 and the fixed cone 340 are driven to move downward by the lifting cylinder 320, and the fixed support plate 330 and the fixed cone 340 are in contact with the ground, which can improve stability.

[0037] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A soft soil underground continuous wall construction device, characterized in that: include: The frame (100) comprises a base (110), universal wheels (120) arranged at four corners of the bottom of the base (110), columns (130) arranged at four corners of the top of the base (110), and a top seat (140) arranged at the top of the columns (130); The support assembly (200) comprises a shaft sleeve (210) arranged in the middle of the top of the top seat (140), a double-stage reverse screw (220) arranged inside the shaft sleeve (210), a mounting frame (230) arranged on the top of the top seat (140), a servo motor (240) arranged on the top of the mounting frame (230) and having an output end connected to the double-stage reverse screw (220), a sliding nut (250) arranged on the surface of the double-stage reverse screw (220), a connecting rod (260) arranged on one side of the sliding nut (250), and a side plate (270) arranged at one end of the connecting rod (260); The fixing assembly (300) comprises a curved frame (310) arranged on the top of the base (110), a lifting cylinder (320) arranged on the top of the curved frame (310), a fixed support plate (330) arranged on the bottom of the lifting cylinder (320), and a fixed cone (340) arranged on the bottom of the fixed support plate (330).

2. The soft soil underground continuous wall construction device according to claim 1, characterized in that: The universal wheel (120) is provided with a self-locking structure.

3. The soft soil underground continuous wall construction device according to claim 1, characterized in that: An independent power source is arranged on one side of the top of the top seat (140), and the independent power source is a rechargeable lithium battery.

4. The soft soil underground continuous wall construction device according to claim 1, characterized in that: A rotating sleeve matching the double-stage reverse screw (220) is arranged in the middle of the top of the base (110).

5. The soft soil underground continuous wall construction device according to claim 1, characterized in that: Gallows are provided at both ends of the connecting rod (260), and the connecting rod (260) is connected to the sliding nut (250) and the side plate (270) through the gallows.

6. The soft soil underground continuous wall construction device according to claim 1, characterized in that: A rubber gasket is provided on the surface of the side plate (270).

7. The soft soil underground continuous wall construction device according to claim 1, characterized in that: Through holes matching the output ends of the lifting cylinder (320) are provided on both sides of the top of the base (110).

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