Seepage-proofing and water-stopping wall trenching machine

Abstract

The utility model relates to the technical field of trenching machines, in particular to an anti-seepage water-stop wall trenching machine which comprises a trenching machine body, a lifting rope, a protection seat, a supporting frame, a soil body grabbing mechanism and a linkage mechanism, the lifting rope is arranged on the trenching machine body, the protection seat is connected to the lifting rope, a mounting cavity is formed in the protection seat, and the supporting frame is fixed to the bottom of the protection seat; the soil body grabbing mechanism is arranged on the supporting frame, by means of the soil body grabbing mechanism and the linkage mechanism, a driven rod can drive an adjusting plate to move while sliding, then a linkage plate is driven by a butt joint plate to conduct synchronous linkage, the grab bucket is driven to conduct linkage, and at the moment, under the limiting effect of a limiting rod, the angle of a bottom opening of the grab bucket is kept unchanged; therefore, nearly parallel movement is achieved, the radian of the curved surface of the groove body is effectively reduced, the curved surface of the groove body approaches to a plane structure, the curved surface of the groove body and the groove wall are combined to form a relatively flat rectangular structure, and the overall stress of the diaphragm wall is relatively balanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of trenching machines, in particular to a seepage-proof and water-stopping wall trenching machine. BACKGROUND

[0002] A seepage-proof wall refers to a continuous underground wall formed by pouring concrete or backfilling other seepage-proof materials in a trench-shaped hole or a series of pile holes drilled or excavated by a drilling or trenching machine in a loose and permeable foundation or dam (weir) body, which plays a role in seepage prevention and load bearing. It is one of the main measures for vertical seepage prevention of hydraulic structures such as dams in loose and permeable foundations, and plays an important role in ensuring the stability of the foundation and the safety of the dam and fully utilizing the benefits of the reservoir.

[0003] Currently, in the second section of the Jinshehe Reservoir Reinforcement Project, the seepage-proof wall is located on the upstream dam slope and parallel to the dam axis. The seepage-proof wall pile number is Niaoguanzi (0+000.00-0+370.00), with a total length of 370m. During the construction of the seepage-proof wall, a new technology of hydraulic grab wall construction by trenching machine is proposed to build the trench in stages and sections. Generally, it is divided into two stages. First, the first stage trench is constructed, then the second stage trench is constructed, and so on. Finally, all the wall segments are connected to form a complete seepage-proof wall. The top of the wall is connected to the seepage-proof body of the dam, the two ends are connected to the seepage-proof facilities on the shore, and the bottom is embedded in the bedrock or relatively impermeable stratum to a certain depth, thereby cutting off or reducing the seepage flow in the foundation.

[0004] In related technologies, most trenching machines use hydraulic grabs to grab soil. However, the hydraulic grab of the current trenching machine is generally connected to the support frame by rotation, and the two grabs are rotated by hydraulic pressure to grab the soil. However, when rotating, the grab generates a curved path, which results in a curved structure at the bottom of the trench when grabbing, which cannot form a flat structure, and thus the entire trench cannot form a standard rectangular structure, resulting in uneven stress on the bottom of the seepage-proof wall. Utility model content

[0005] To solve the problem of the current trenching machine's rotating grab generating a curved path, resulting in a curved structure at the bottom of the trench, which cannot form a standard rectangular structure, and causing uneven stress on the bottom of the seepage-proof wall, the present application provides a seepage-proof and water-stopping wall trenching machine.

[0006] The seepage-proof and water-stopping wall trenching machine provided by the present application adopts the following technical solution:

[0007] The seepage-proof and water-stopping wall trenching machine comprises:

[0008] The trencher body is provided with a hanging rope, the hanging rope is connected with a protective seat, the protective seat is internally provided with a mounting cavity, and a support frame is fixed to the bottom of the protective seat;

[0009] The soil grabbing mechanism is arranged on the support frame, and comprises a driven rod, an adjusting plate, a linkage plate, a butt joint plate, a grab bucket and a limiting rod.

[0010] The linkage mechanism is arranged in the mounting cavity of the protective seat.

[0011] The driven rod can drive the adjusting plate to move while sliding, and then drive the linkage plate and the grab bucket to move synchronously through the butt joint plate.

[0012] Optionally, the linkage mechanism comprises a lead screw and a worm gear.

[0013] The rotation of the worm gear drives the threaded linkage of the lead screw, and then the lead screw drives the driven rod to reciprocatingly slide.

[0014] Optionally, the linkage mechanism further comprises a servo motor and a worm.

[0015] By adopting the technical scheme, the servo motor drives the worm to rotate, the worm drives the worm gear to synchronously link, the worm gear drives the screw rod to threadedly link in the screw hole of the worm gear, and the worm gear and the worm are combined to form a self-locking structure, thereby avoiding reverse rotation.

[0016] Optionally, two limit rods are symmetrically arranged on the front and rear sides of the grab bucket, and the two limit rods are combined to form an integral structure, and the linkage plate is located between the two limit rods.

[0017] By adopting the above technical scheme, the limit rods arranged symmetrically enable the front and rear sides of the grab bucket to be uniformly stressed when the grab bucket links.

[0018] Optionally, the bottom of the grab bucket is in a wedge structure, and a rectangular storage cavity is arranged in the grab bucket in a concave manner on one side, and the bottom of the storage cavity is in a wedge structure.

[0019] By adopting the above technical scheme, the wedge structure enables the grab bucket to quickly grab the soil into the storage cavity of the grab bucket.

[0020] Optionally, two groups of grab buckets are symmetrically arranged on the support frame, and the two grab buckets are integrally formed by pouring high-strength composite material.

[0021] By adopting the above technical scheme, the high-strength composite material improves the structural strength and service life of the grab bucket.

[0022] Optionally, the mounting cavity of the protection seat is a sealed cavity.

[0023] By adopting the above technical scheme, the sealed cavity avoids water damage to the servo motor.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] By arranging the soil grabbing mechanism and the linkage mechanism, the driven rod can drive the adjusting plate to move while sliding, and then drive the linkage plate to synchronously link through the butt joint plate, and drive the grab bucket to link, at this time, under the limiting action of the limit rod, the bottom opening angle of the grab bucket remains unchanged, realizing the movement close to parallel, thereby effectively reducing the curvature of the groove surface, making it close to a plane structure, and then combining with the groove wall to form a relatively flat rectangular structure, so that the stress of the diaphragm wall is relatively balanced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is an external overall structure schematic diagram of the diaphragm wall trenching machine in the embodiment.

[0027] Figure 2 is a schematic diagram of the protection seat and its connecting structure in the embodiment.

[0028] Figure 3 is the schematic view of the support frame and its connecting structure in the embodiment.

[0029] Figure 4 is the schematic view of the soil body grabbing mechanism structure in the embodiment.

[0030] Legend:

[0031] 1, trencher body; 2, hanging rope; 3, protective seat; 4, support frame; 5, soil body grabbing mechanism; 51, driven rod; 52, adjusting plate; 53, linkage plate; 54, butt joint plate; 55, grab bucket; 56, limiting rod; 6, linkage mechanism; 61, lead screw; 62, worm gear; 63, servo motor; 64, worm. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying Figures 1-4 The application is further described in detail.

[0033] The embodiment of the application discloses a seepage-proof and water-stopping wall trencher.

[0034] It should be noted that in the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0035] Reference Figure 1 and Figure 2, the anti-seepage waterproof wall trenching machine, including a trenching machine body 1, a sling 2, a protective seat 3, a support frame 4, a soil body grabbing mechanism 5 and a linkage mechanism 6, the sling 2 is provided on the trenching machine body 1, the protective seat 3 is connected to the sling 2, the inside of the protective seat 3 is provided with a mounting cavity, and the support frame 4 is fixed to the bottom of the protective seat 3, the soil body grabbing mechanism 5 is arranged on the support frame 4, the soil body grabbing mechanism 5 includes a driven rod 51, an adjusting plate 52, a linkage plate 53, an abutment plate 54, a grab bucket 55 and a limiting rod 56, the linkage mechanism 6 is arranged in the mounting cavity of the protective seat 3, the driven rod 51 is arranged to move while sliding, and the adjusting plate 52 is driven to move, and then the linkage plate 53 is driven to move synchronously through the abutment plate 54, and the grab bucket 55 is driven to move, at this time, the bottom opening angle of the grab bucket 55 remains unchanged under the limiting action of the limiting rod 56, the movement approaches parallel, and the curvature of the groove body is effectively reduced to approach a plane structure, and then combined with the groove wall to form a relatively flat rectangular structure, so that the overall stress of the anti-seepage wall is relatively balanced.

[0036] Specifically, the driven rod 51 is slidably connected in the support frame 4, and part of the driven rod 51 is slidably connected with the protective seat 3 and located in the mounting cavity of the protective seat 3, the adjusting plate 52 is fixed to one end of the driven rod 51 away from the protective seat 3, the linkage plate 53 is rotatably connected to the center of the support frame 4, the abutment plate 54 is rotatably connected between the adjusting plate 52 and the linkage plate 53, the grab bucket 55 is rotatably connected to one end of the linkage plate 53 away from the abutment plate 54, one end of the limiting rod 56 is rotatably connected to the support frame 4, and the other end of the limiting rod 56 is rotatably connected to the grab bucket 55, and the limiting rod 56 is partially parallel to the linkage plate 53.

[0037] Referring to Figure 3 and Figure 4 Specifically, in the embodiment of the present application, the linkage mechanism 6 includes a lead screw 61, a worm gear 62, a servo motor 63 and a worm 64, the servo motor 63 drives the worm 64 to rotate, the worm 64 drives the worm gear 62 to move synchronously, the lead screw 61 is threadedly connected in the screw hole of the worm gear 62, the worm gear 62 and the worm 64 form a self-locking structure to avoid reverse rotation, the rotation of the worm gear 62 drives the lead screw 61 to move, and the lead screw 61 drives the driven rod 51 to reciprocate.

[0038] The lead screw 61 is coaxially fixed to one end of the driven rod 51 away from the adjusting plate 52 and located in the mounting cavity of the protective seat 3, the worm gear 62 is rotatably connected to the bottom of the mounting cavity of the protective seat 3, a screw hole is formed through the center of the worm gear 62, the lead screw 61 is threadedly connected with the screw hole of the worm gear 62, the servo motor 63 is fixed to the inner wall of the mounting cavity of the protective seat 3 and connected with an external electric control device through a wire, the worm 64 is coaxially fixed to the output shaft of the servo motor 63, and the worm 64 is engaged on one side of the worm gear 62.

[0039] In the embodiment of the present application, two limit rods 56 are symmetrically arranged on the front and rear sides of the grab bucket 55, and the two limit rods 56 are combined to form an integral structure, and the linkage plate 53 is located between the two adjacent limit rods 56. The symmetrically arranged limit rods 56 enable the front and rear sides of the grab bucket 55 to be uniformly stressed when the linkage is performed.

[0040] Specifically, in the embodiment of the present application, the grab bucket 55 has a wedge-shaped structure at the bottom, and a rectangular storage cavity is arranged in the side of the grab bucket 55, and the bottom of the storage cavity has a wedge-shaped structure. The wedge-shaped structure enables the grab bucket 55 to quickly grab the soil into the storage cavity of the grab bucket 55. Two groups of grab buckets 55 are symmetrically arranged on the support frame 4, and the two grab buckets 55 are integrally formed by pouring high-strength composite material. The high-strength composite material improves the structural strength and service life of the grab bucket 55.

[0041] In the embodiment of the present application, the mounting cavity of the protection seat 3 is a sealed cavity. The sealed cavity prevents the servo motor 63 from being damaged by water.

[0042] The implementation principle of the anti-seepage waterproof wall trenching machine in the embodiment of the present application is as follows: in use, the lifting rope 2 is connected with the protection seat 3, the protection seat 3 and the support frame 4 are lifted as a whole by the lifting rope 2 and placed in the trench to grab the soil. When grabbing, the servo motor 63 drives the worm gear 64 to rotate, and the worm gear 64 drives the worm wheel 62 to synchronously link, and then drives the lead screw 61 to threadedly link in the screw hole of the worm wheel 62. The lead screw 61 drives the driven rod 51 to reciprocally slide, and the driven rod 51 drives the adjusting plate 52 to move while sliding, and then drives the linkage plate 53 to synchronously link through the butt joint plate 54, and drives the grab bucket 55 to link. At this time, under the limiting action of the limit rod 56, the bottom opening angle of the grab bucket 55 remains unchanged, the movement approaches parallel, and the soil is synchronously grabbed.

[0043] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A diaphragm walling machine, characterised in that, Include: The trencher body (1) is provided with a sling (2), the sling (2) is connected with the protective seat (3), the inside of the protective seat (3) is provided with an installation cavity, and the bottom of the protective seat (3) is fixed with a support frame (4); The soil grabbing mechanism (5) is used for grabbing soil, and the soil grabbing mechanism (5) is arranged on the support frame (4), the soil grabbing mechanism (5) includes a driven rod (51), an adjusting plate (52), a linkage plate (53), an abutment plate (54), a grab bucket (55) and a limiting rod (56), the driven rod (51) is slidably connected in the support frame (4), and part of the driven rod (51) is slidably connected with the protective seat (3) and located in the installation cavity of the protective seat (3), the adjusting plate (52) is fixed on one end of the driven rod (51) away from the protective seat (3), the linkage plate (53) is rotatably connected at the center thereof to the support frame (4), the abutment plate (54) is rotatably connected between the adjusting plate (52) and the linkage plate (53), the grab bucket (55) is rotatably connected to one end of the linkage plate (53) away from the abutment plate (54), one end of the limiting rod (56) is rotatably connected to the support frame (4), the other end is rotatably connected to the grab bucket (55), and the limiting rod (56) is partially parallel to the linkage plate (53); The linkage mechanism (6) is used for driving the soil grabbing mechanism (5) to link as a whole, and the linkage mechanism (6) is arranged in the installation cavity of the protective seat (3).

2. The diaphragm wall trench cutting machine of claim 1, wherein, The linkage mechanism (6) includes a lead screw (61) and a worm gear (62), the lead screw (61) is coaxially fixed on one end of the driven rod (51) away from the adjusting plate (52) and located in the installation cavity of the protective seat (3), the worm gear (62) is rotatably connected to the bottom of the installation cavity of the protective seat (3), a threaded hole is formed through the center of the worm gear (62), and the lead screw (61) is threadedly connected with the threaded hole of the worm gear (62).

3. The diaphragm wall trench cutting machine of claim 2, wherein, The linkage mechanism (6) further includes a servo motor (63) and a worm (64), the servo motor (63) is fixed on the inner wall of the installation cavity of the protective seat (3) and connected with an external electric control device through wires, the worm (64) is coaxially fixed on the output shaft of the servo motor (63), and the worm (64) is engaged on one side of the worm gear (62).

4. The diaphragm wall guniting machine of claim 1, wherein, Two limiting rods (56) are symmetrically arranged on the front and rear sides of the grab bucket (55), and the two limiting rods (56) are combined to form an integral structure, and the linkage plate (53) is located between the two limiting rods (56).

5. The diaphragm wall guniting machine of claim 1, wherein, The bottom of the grab bucket (55) is wedge-shaped, and a rectangular storage cavity is recessed in one side of the grab bucket (55), and the bottom of the storage cavity is wedge-shaped.

6. The diaphragm wall guniting machine of claim 1, wherein, Two groups of grab buckets (55) are symmetrically arranged on the support frame (4), and the two grab buckets (55) are integrally formed by pouring high-strength composite material.

7. The diaphragm wall guniting machine of claim 1, wherein, The mounting cavity of the protective seat (3) is a sealed cavity.

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