Formwork with adjustable positive and negative angles for backfilling of flow-state solidified soil and construction method

Abstract

The positive and negative angle adjustable template comprises a supporting template installed on a base layer, the supporting template is hinged to a soil retaining template, and an angle display assembly for displaying the angles of the supporting template and the soil retaining template in real time is installed at the hinged position of the supporting template and the soil retaining template; a supporting assembly and an angle adjusting assembly are installed between the soil retaining formwork and the supporting formwork. A friction assembly is installed below the formwork supporting plate. According to the design of the angle adjusting assembly, the angle is adjusted in a meshing mode, and conversion of the rotation angle of 90 degrees is achieved through the design that every two of the four straight bevel gears are opposite to each other. The supporting assembly is fixed in a buckling groove meshing mode and is reset through a reset spring. In this way, firm support is provided for the soil retaining formwork. According to the device, the flow-state solidified soil can be effectively poured, the angles of the formwork supporting and the soil retaining formwork can be freely adjusted according to the construction condition, and different construction requirements are met.

Description

Technical Field

[0001] The invention belongs to the technical field of solidified soil backfilling devices, and in particular relates to a template with adjustable positive and negative angles for fluidized solidified soil backfilling and a construction method. Background Art

[0002] In the backfill construction process of various engineering foundation pits, there are often narrow spaces and high requirements for the quality of backfill soil. However, plain concrete backfill is expensive and has high strength, which brings difficulties to later maintenance. Premixed fluidized solidified soil has high strength and fluidity suitable for pumping construction, and has a wide range of applications. When using fluidized solidified soil for backfilling, most of the templates in the construction process are currently built manually, and usually templates need to be built at both ends, which has low construction efficiency, inconvenient installation, and the backfill angle is difficult to control, which may be a negative angle, and needs to be adjusted on site after field measurement.

[0003] Therefore, how to ensure that the angle can be easily adjusted during installation and removal of the template, and how to maintain stability during use, is a difficult problem that technicians in this field have been thinking about.

[0004] The patent application with publication number CN117905083A discloses an integrated adjustable formwork and construction method suitable for backfilling of fluidized solidified soil, which specifically includes a support plate installed on the base, a retaining formwork assembly hinged to the support plate and used to support the fluidized solidified soil, a support adjustment assembly hinged to the support plate at one end and hinged to the retaining plate assembly at the other end away from the fluidized solidified soil, and a friction assembly installed on the support plate and used to increase the friction between the support plate and the base member, and discloses a construction method suitable for backfilling of fluidized solidified soil. However, there are the following defects: 1. The determination of the angle requires the help of external equipment; 2. The adjustment of the angle can only be determined according to the interval openings on the base, and the angle cannot be fine-tuned. Summary of the invention

[0005] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide a positive and negative angle adjustable template and construction method for backfilling of fluidized solidified soil. By adjusting the components, the angle between the retaining template and the supporting template can be conveniently adjusted, and negative angle adjustment can be performed at the same time to adapt to different pouring requirements of fluidized solidified soil.

[0006] In order to achieve the above technical problems, the technical solution of the present invention is as follows:

[0007] A positive and negative angle adjustable template for backfilling of fluidized solidified soil, comprising a supporting template 1 installed on a base layer, the supporting template 1 being hinged to a retaining template 2, an angle display component 4 for displaying the angle between the supporting template 1 and the retaining template 2 being installed at the hinge between the supporting template 1 and the retaining template 2 in real time; a supporting component 5 and an angle adjustment component 3 are installed between the retaining template 2 and the supporting template 1; and a friction component 6 is installed below the supporting template 1.

[0008] The angle adjustment assembly 3 includes a rotating handle 301, which is mounted on a first worm 302. The other end of the first worm 302 is meshed with a first turbine 303 at the front end of a first spur bevel gear 304. The first spur bevel gear 304 is meshed with a second spur bevel gear 305 and a third spur bevel gear 306 in a direction perpendicular to the first spur bevel gear 304. The second spur bevel gear 305 and the third spur bevel gear 306 are meshed with a fourth spur bevel gear 307. The first spur bevel gear 304 is meshed with the fourth spur bevel gear 307. 307 are arranged relatively to each other, and the second spur bevel gear 305 and the third spur bevel gear 306 are arranged relatively to each other; the fourth spur bevel gear 307 and the first spur bevel gear 304 are fixedly mounted on the second worm gear 308, the other end of the second worm gear 308 is meshed with the second turbine 309, and the second turbine 309 is fixedly connected with the first connecting rod 310, the first connecting rod 310 is connected to the second connecting rod 311, and the front end of the second connecting rod 311 is movably connected to the support rod 312, and the support rod 312 is fixedly connected to the retaining template 2.

[0009] The angle display component 4 is a foldable fan blade protractor.

[0010] The supporting assembly 5 comprises a rotating handle 501, which is fixedly mounted on a buckle rod 502, a lower pressing rod 503 is fixedly mounted on the side of the buckle rod 502, a buckle 504 is fixedly mounted on the side of the lower pressing rod 503, the buckle 504 is meshed with a buckle groove on the buckle rod 502, a return spring 505 is mounted on the lower end of the lower pressing rod 503, a lower meshing brake gear 506 is mounted on the bottom end of the lower pressing rod 503 below the return spring 505, a slide groove 507 is fixedly mounted on the side of the supporting formwork 1 opposite to the retaining formwork 2, an upper meshing brake gear 508 is fixedly mounted in the slide groove 507, and the lower meshing brake gear 506 meshes with the upper meshing brake gear 508.

[0011] The friction assembly 6 includes screws 601 , and a blocking bar 602 is fixedly installed in front of each screw 601 .

[0012] The angle of the blocking bar 602 is 45 degrees.

[0013] A construction method suitable for backfilling fluidized solidified soil, based on the above-mentioned positive and negative angle adjustable template, specifically comprises the following steps:

[0014] Step 1: Divide the retaining wall formed by fluidized solidified soil into sections;

[0015] Step 2: Assemble the template with adjustable positive and negative angles and transport it to the designated location;

[0016] Step 3: Adjust the angle between the supporting formwork 1 and the retaining formwork 2 according to the actual situation; determine the angle to be supported through the angle display component 4, turn the rotating handle 301, and realize the conversion of the rotation angle of 90° through the first, second, third and fourth straight bevel gears of the angle adjustment component 3, and convert the rotation into the rotation of the second worm 308, the second worm 308 cooperates with the first connecting rod 310, and the first connecting rod 310 and the second connecting rod 311 realize the support effect on the retaining formwork 2 through the support rod 312;

[0017] Step 4: After the angle of the retaining formwork 2 is adjusted by the angle adjustment component 3, the retaining formwork 2 needs to be fixed. By turning the rotating handle 501, the buckle 504 is pressed downward by the buckle groove on the buckle rod 502, and the lower meshing brake gear 506 and the upper meshing brake gear 508 are meshed with each other for braking; when it is necessary to return to the original position, the rotating handle 501 is returned to its original position under the action of the reset spring 505, the brake is cancelled, and the position of the supporting formwork 1 and the retaining formwork 2 is adjusted and fixed; at the same time, the screws and the retaining bars under the friction component 6 can increase the friction between the supporting formwork 1 and the base layer;

[0018] Step 5: pouring fluidized solidified soil, with the overall height of a single pouring not exceeding 2000mm;

[0019] Step 6: After the retaining wall formed by the fluidized solidified soil meets the requirements, remove the positive and negative angle adjustable formwork;

[0020] Step 7: Repeat steps 1 to 6 until all retaining walls are cast.

[0021] Compared with the prior art, the present invention has the following beneficial results:

[0022] (1) The angle display assembly 4 on the side of the positive and negative angle adjustable formwork of the present invention can display the angle between the retaining formwork 2 and the supporting formwork 1 in real time without manual measurement, thus speeding up the construction process.

[0023] (2) The angle adjustment component 3 is designed to adjust the angle by meshing, and the four spur bevel gears are designed to be opposite to each other to achieve a 90° rotation angle conversion.

[0024] (3) The support assembly 5 is fixed by engaging the buckle groove and reset by the return spring, which provides firm support for the retaining formwork and is suitable for the site environment.

[0025] (4) The screws and baffles below the friction assembly 6 can increase the friction between the support formwork and the base layer, making the equipment more stable and unlikely to move during the pouring process.

[0026] In summary, the present invention can conveniently adjust the angle between the retaining formwork and the supporting formwork through the adjustment component as needed, and can also perform negative angle adjustment, which can make the pouring construction of fluidized solidified soil more efficient and convenient, and adapt to different pouring requirements of fluidized solidified soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the template of the present invention.

[0028] Figure 2 This is the front view of the angle adjustment component of the present invention.

[0029] Figure 3 It is a schematic diagram of an angle display component of the present invention.

[0030] Figure 4 It is a schematic diagram of the support assembly of the present invention.

[0031] Figure 5 It is a schematic diagram of the friction assembly of the present invention.

[0032] In the figure:

[0033] 1. Support formwork; 2. Retaining formwork; 3. Angle adjustment component; 4. Angle display component; 5. Support component; 6. Friction component;

[0034] 3. Angle adjustment assembly; 301. Turning handle; 302. First worm; 303. Turbine; 304. First spur bevel gear; 305. Second spur bevel gear; 306. Third spur bevel gear; 307. Fourth spur bevel gear; 308. Second worm; 309. Second turbine; 310. First connecting rod; 311. Second connecting rod; 312. Support rod;

[0035] 5. Support assembly; 501. Rotating handle; 502. Buckle rod; 503. Press rod; 504. Buckle; 505. Return spring; 506. Lower meshing brake gear; 507. Slide; 508. Upper meshing brake gear;

[0036] 6. Friction assembly; 601. Screw; 602. Stop bar. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Reference Figure 1 , one A positive and negative angle adjustable template for backfilling of fluidized solidified soil, comprising a supporting template 1 installed on a base layer, wherein the supporting template 1 is hinged to a retaining template 2, and the retaining template 2 supports the fluidized solidified soil; an angle display component 4 that displays the angle between the two in real time is installed at the hinge between the supporting template 1 and the retaining template 2; a supporting component 5 and an angle adjustment component 3 are installed between the retaining template 2 and the supporting template 1; the angle adjustment component 3 adjusts the angle of the retaining template 2; a friction component 6 is installed below the supporting template 1 to increase the friction between the supporting template 1 and the base layer.

[0039] The angle adjustment component 3 includes a rotating handle 301, which is mounted on a first worm 302. The other end of the first worm 302 is meshed with a first turbine 303 at the front end of a first spur bevel gear 304. The rotating handle 301 is rotated to drive the first worm 302 to rotate, and the first turbine 303 is driven to rotate. The first turbine 303 drives the first spur bevel gear 304 to rotate. The first spur bevel gear 304 is meshed with a second spur bevel gear 305 and a third spur bevel gear 306 in a direction perpendicular to it. The second spur bevel gear 305 and the third spur bevel gear 306 are meshed with a fourth spur bevel gear 307. The first spur bevel gear 304 drives the second spur bevel gear 305 and the third spur bevel gear 306 to rotate. The gear 306 rotates, driving the fourth spur bevel gear 307 to rotate; the first spur bevel gear 304 is arranged opposite to the fourth spur bevel gear 307, and the second spur bevel gear 305 is arranged opposite to the third spur bevel gear 306; the fourth spur bevel gear 307 and the first spur bevel gear 304 are fixedly mounted on the second worm 308, and the fourth spur bevel gear 307 drives the second worm 308 to rotate; the other end of the second worm 308 meshes with the second turbine 309 and drives the second turbine 309 to rotate, and the second turbine 309 is fixedly connected with the first connecting rod 310, the first connecting rod 310 is connected to the second connecting rod 311, and the front end of the second connecting rod 311 is movably connected to the support rod 312, and the support rod 312 is fixedly connected to the retaining template 2. The second turbine 309 drives the first connecting rod 310 to rotate, and the first connecting rod 310 drives the second connecting rod 311 to rotate, and the front end of the second connecting rod 311 is fixedly connected to the support rod 312, so as to adjust the positive and negative angles of the support rod 312.

[0040] The angle display component 4 is a sheet-shaped folding combination, which can display the angle between the supporting formwork 1 and the retaining formwork 2 in real time.

[0041] The supporting assembly 5 comprises a rotating handle 501, which is fixedly mounted on a buckle rod 502, a lower pressing rod 503 is fixedly mounted on the side of the buckle rod 502, a buckle 504 is fixedly mounted on the side of the lower pressing rod 503, the buckle 504 is meshed with a buckle groove on the buckle rod 502, a return spring 505 is mounted on the lower end of the lower pressing rod 503, a lower meshing brake gear 506 is mounted on the bottom end of the lower pressing rod 503 below the return spring 505, a slide groove 507 is fixedly mounted on the side of the supporting formwork 1 opposite to the retaining formwork 2, an upper meshing brake gear 508 is fixedly mounted in the slide groove 507, and the lower meshing brake gear 506 meshes with the upper meshing brake gear 508. The rotating handle 501 is rotated, and the buckle rod 502 is rotated 90 degrees. The buckle groove of the buckle rod 502 presses the buckle 504 to move downward, and drives the lower pressing rod 503 to move downward. After the lower pressing rod 503 moves downward, the lower meshing brake gear 506 below the lower pressing rod 503 and the upper meshing brake gear 508 in the slide groove mesh with each other, which plays a supporting and fixing role for the retaining formwork 2. After the rotating handle 501 is reset, the lower pressing rod 503 rises under the action of the reset spring 505, and the support assembly 5 returns to the initial position.

[0042] The friction assembly 6 includes screws 601 that extend into the base to fix the support formwork 1. A 45-degree blocking bar 602 is fixedly installed in front of each screw 601 to increase the friction between the support formwork 1 and the base.

[0043] on the other hand:

[0044] A construction method suitable for backfilling fluidized solidified soil, based on the above-mentioned positive and negative angle adjustable template, specifically comprises the following steps:

[0045] Step 1: Divide the retaining wall formed by fluidized solidified soil into sections;

[0046] Step 2: Assemble the template with adjustable positive and negative angles and transport it to the designated location;

[0047] Step 3: Adjust the angle between the supporting formwork 1 and the retaining formwork 2 according to the actual situation; determine the angle to be supported through the angle display component 4, which can display the angle between the retaining formwork 2 and the supporting formwork 1 in real time, without manual measurement, thus speeding up the construction process;

[0048] The rotating handle 301 is turned to realize the conversion of the rotation angle of 90° through the first, second, third and fourth straight bevel gears of the angle adjustment assembly 3, and the rotation is converted into the rotation of the second worm 308. The second worm 308 cooperates with the first connecting rod 310, and the first connecting rod 310 and the second connecting rod 311 realize the support function of the retaining template 2 through the support rod 312;

[0049] Step 4: After the angle of the retaining formwork 2 is adjusted by the angle adjustment component 3, the retaining formwork 2 needs to be fixed. By turning the rotating handle 501, the buckle 504 is pressed downward by the buckle groove on the buckle rod 502, and the lower meshing brake gear 506 and the upper meshing brake gear 508 are meshed with each other for braking; when it is necessary to return to the original position, the rotating handle 501 is returned to its original position under the action of the reset spring 505, the brake is cancelled, and the position of the supporting formwork 1 and the retaining formwork 2 is adjusted and fixed; at the same time, the screws and the retaining bars under the friction component 6 can increase the friction between the supporting formwork 1 and the base layer;

[0050] Step 5: pouring fluidized solidified soil, with the overall height of a single pouring not exceeding 2000mm;

[0051] Step 6: After the retaining wall formed by the fluidized solidified soil meets the requirements, remove the positive and negative angle adjustable formwork;

[0052] Step 7: Repeat steps 1 to 6 until all retaining walls are cast.

Claims

1. A positive and negative angle adjustable formwork for backfilling fluidized solidified soil, comprising a support formwork (1) installed on a base layer, characterized in that: The supporting formwork (1) is hinged to the retaining formwork (2); an angle display component (4) for displaying the angle between the supporting formwork (1) and the retaining formwork (2) in real time is installed at the hinged position of the supporting formwork (1); a support component (5) and an angle adjustment component (3) are installed between the retaining formwork (2) and the supporting formwork (1); and a friction component (6) is installed below the supporting formwork (1).

2. The positive and negative angle adjustable formwork for backfilling fluidized solidified soil according to claim 1, characterized in that: The angle adjustment assembly (3) comprises a rotating handle (301), the rotating handle (301) being mounted on a first worm gear (302), the other end of the first worm gear (302) being meshed with a first turbine (303) at the front end of a first spur bevel gear (304), the first spur bevel gear (304) being meshed with a second spur bevel gear (305) and a third spur bevel gear (306) in a perpendicular direction thereof, the second spur bevel gear (305) and the third spur bevel gear (306) being meshed with a fourth spur bevel gear (307), the first spur bevel gear (304) being meshed with the fourth spur bevel gear (307). 07) are arranged relative to each other, the second spur bevel gear (305) and the third spur bevel gear (306) are arranged relative to each other; the fourth spur bevel gear (307) and the first spur bevel gear (304) are fixedly mounted on the second worm gear (308), the other end of the second worm gear (308) is meshed with the second turbine (309), the second turbine (309) is fixedly connected with a first connecting rod (310), the first connecting rod (310) is connected to the second connecting rod (311), the front end of the second connecting rod (311) is movably connected to a support rod (312), and the support rod (312) is fixedly connected to the retaining template (2).

3. The positive and negative angle adjustable formwork for backfilling fluidized solidified soil according to claim 1, characterized in that: The angle display component (4) is a foldable fan-blade protractor.

4. The positive and negative angle adjustable formwork for backfilling fluidized solidified soil according to claim 1, characterized in that: The support assembly (5) comprises a rotating handle (501), the rotating handle (501) is fixedly mounted on a buckle rod (502), a lower pressing rod (503) is fixedly mounted on the side of the buckle rod (502), a buckle (504) is fixedly mounted on the side of the lower pressing rod (503), the buckle (504) is meshed with a buckle groove on the buckle rod (502), a return spring (505) is mounted on the lower end of the lower pressing rod (503), a lower meshing brake gear (506) is mounted on the lower end of the lower pressing rod (503) below the return spring (505), a slide groove (507) is fixedly mounted on a side of the supporting formwork (1) opposite to the retaining formwork (2), an upper meshing brake gear (508) is fixedly mounted in the slide groove (507), and the lower meshing brake gear (506) meshes with the upper meshing brake gear (508) 5. The positive and negative angle adjustable formwork for backfilling fluidized solidified soil according to claim 1, characterized in that: The friction assembly (6) comprises screws (601), and a blocking bar (602) is fixedly mounted in front of each screw (601).

6. The positive and negative angle adjustable formwork for backfilling fluidized solidified soil according to claim 5, characterized in that: The angle of the blocking bar (602) is 45 degrees.

7. The construction method of a positive and negative angle adjustable formwork for backfilling of fluidized solidified soil according to claim 1, characterized in that: The specific steps include: Step 1: Divide the retaining wall formed by fluidized solidified soil into sections; Step 2: Assemble the template with adjustable positive and negative angles and transport it to the designated location; Step 3: Adjust the angle between the supporting formwork (1) and the retaining formwork (2) according to actual conditions; determine the angle to be supported through the angle display component (4), rotate the rotation handle (301), and realize the conversion of the rotation angle of 90° through the first, second, third and fourth straight bevel gears of the angle adjustment component (3), and convert the rotation into the rotation of the second worm (308); the second worm 308 cooperates with the first connecting rod (310), and the first connecting rod (310) and the second connecting rod (311) realize the support effect on the retaining formwork 2 through the support rod (312); Step 4: After the angle of the retaining template 2 is adjusted by the angle adjustment component 3, the retaining template (2) needs to be fixed. By turning the rotating handle (501), the buckle groove on the buckle rod (502) is used to press the buckle (504) to move downward, and the lower meshing brake gear (506) and the upper meshing brake gear (508) are meshed with each other to brake; when it is necessary to return to the original position, the rotating handle (501) is returned to its original position under the action of the return spring (505), the brake is cancelled, and the position of the supporting template (1) and the retaining template (2) is adjusted and fixed; at the same time, the screws and the retaining bar below the friction component (6) can increase the friction between the supporting template (1) and the base layer; Step 5: pouring fluidized solidified soil, with the overall height of a single pouring not exceeding 2000mm; Step 6: After the retaining wall formed by the fluidized solidified soil meets the requirements, remove the positive and negative angle adjustable formwork; Step 7: Repeat steps 1 to 6 until all retaining walls are cast.

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