A kind of prefabricated aqueduct automatic demoulding equipment and demoulding method

Abstract

The present invention relates to the field of demoulding technology, and in particular to an automatic demoulding device and demoulding method for a prefabricated aqueduct, comprising a base and a digital display control panel, wherein a top plate is arranged above the base, the top plate is fixedly arranged on the base through a column, a lower mold is rotatably arranged between the base and the top plate, a flipping drive component for driving the lower mold to flip is arranged on the column, an upper mold is detachably arranged on the upper side of the lower mold, and a lifting component for driving the upper mold to rise and fall is arranged on the top plate; side end mold components for limiting the end of the prefabricated aqueduct body before molding and for pushing and fixing and driving the end of the prefabricated aqueduct body to be separated from the lower mold after molding are arranged at both ends of the lower mold; automatic demoulding of the prefabricated aqueduct body can be achieved through the mutual coordination and cooperation between the flipping drive component, the auxiliary receiving platform structure, the lifting component, the side end mold component and the locking structure, and the like, and the whole demoulding process is fast and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of demoulding, and in particular to automated demoulding equipment and a demoulding method for a prefabricated aqueduct. Background Art

[0002] Prefabricated aqueduct is a structure that provides a passage under a bridge or tunnel to guide rivers or water flows. It is composed of a series of prefabricated concrete components that are assembled and installed on site. It is mainly used to transport water across channels, rivers, roads, mountain streams, valley mouths, etc. It is a type of overhead water conveyance structure. When making prefabricated aqueducts, it is often necessary to make templates for prefabricated components, and demoulding is carried out when the concrete strength reaches more than 70% of the design requirements;

[0003] A device for removing the inner corner formwork support of a rectangular prefabricated aqueduct with publication number CN206581152U comprises an outer rib formwork, an inner corner formwork arranged oppositely and an outer vertical formwork of the rectangular prefabricated aqueduct, wherein: along a horizontal section, two sides of the outer vertical formwork of the rectangular prefabricated aqueduct are connected to the inner corner formwork, two inner corner formworks located on both sides of the outer rib are connected to the outer rib formwork, and two sides of the outer rib formwork are welded with reinforcing connectors;

[0004] However, at present, when demoulding and dismantling the prefabricated aqueduct, workers are often required to manually dismantle it, and the prefabricated aqueduct needs to be lifted and separated from the mold, which greatly affects the demoulding efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a prefabricated aqueduct automatic demoulding device and demoulding method in order to solve the above problems.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The present invention provides an automatic demoulding device for prefabricated aqueduct, comprising a base and a digital display control panel, wherein a top plate is arranged above the base, and the top plate is fixedly arranged on the base through a column, a lower mold is rotatably arranged between the base and the top plate, a flipping drive component for driving the lower mold to flip is arranged on the column, an upper mold is detachably arranged on the upper side of the lower mold, and a lifting component for driving the upper mold to rise and fall is arranged on the top plate; side end mold components for limiting the end of the prefabricated aqueduct body before molding and for pushing and fixing and driving the end of the prefabricated aqueduct body to separate from the lower mold after molding are arranged at both ends of the lower mold; an auxiliary receiving platform structure for receiving and supporting the demoulding and leading out of the prefabricated aqueduct body is arranged on the base.

[0008] Furthermore, the flipping drive assembly is provided with two distributed at both ends of the lower mold, and the flipping drive assembly includes an outer support ring, and support ears are fixedly provided on both sides of the outer support ring, and a column hole for passing the column is penetrated on the support ear, and a first fixing bolt for achieving a tight abutment with the column is threaded on the support ear, and an inner rotating ring is rotatably provided in the outer support ring through a slewing bearing, and the lower mold is fixedly connected to the inner side of the inner rotating ring by a second fixing bolt.

[0009] Furthermore, a motor is fixedly installed on the top side of the outer support ring through a fixing seat, a gear is connected to the output shaft end of the motor, a gear ring is fixedly installed on the outer edge of the end of the inner rotating ring, the gear and the gear ring are meshed and connected with each other, and the output end of the digital display control panel is electrically connected to the input end of the motor.

[0010] Furthermore, the side end mold assembly includes a crossbeam that moves up and down inside the lower mold, a third hydraulic cylinder is fixedly arranged at the middle position of the crossbeam, a push rod head end of the third hydraulic cylinder is connected to the end mold plate, a pressure sensor is arranged at the connection between the push rod head end of the third hydraulic cylinder and the end mold plate, the output end of the digital display control panel is electrically connected to the input end of the third hydraulic cylinder, and the output end of the pressure sensor is electrically connected to the input end of the digital display control panel.

[0011] Furthermore, guide shafts are provided at both ends of the crossbeam, one end of the guide shaft is fixedly connected to the inner wall of the lower mold, and a first guide slide hole is penetrated through the end of the crossbeam for slidingly connecting with the guide shaft. A second hydraulic cylinder for driving the crossbeam to move axially along the guide shaft is fixedly provided in the lower mold, and the output end of the digital display control panel is electrically connected to the input end of the second hydraulic cylinder.

[0012] Furthermore, the lifting assembly is provided with two electric hoists distributed at both ends of the upper mold, and the lifting assembly includes an electric hoist fixedly arranged on the top side of the top plate, one end of the lifting rope is connected to the electric hoist, and the other end of the lifting rope passes through the rope threading hole provided on the top plate and is fixedly connected to the top side of the upper mold, and two guide rods symmetrically distributed with the lifting rope as the center are provided on both sides of the lifting rope, and the lower ends of the two guide rods are fixedly connected to the top side of the upper mold, and a second guide slide hole for cooperating and slidingly connecting with the guide rod is provided through the top plate, and the output end of the digital display control panel is electrically connected to the input end of the electric hoist.

[0013] Furthermore, the base and the top plate are both in the shape of a rectangular parallelepiped, and there are four columns distributed in a rectangular array. The four columns are fixedly connected to each other at the four corners of the base and the top plate, and upper edge plates are provided on both sides of the upper part of the upper mold. An injection tube is provided on the upper edge plate, and a locking structure for locking the upper edge plate is provided on the lower mold.

[0014] Furthermore, the locking structure includes an electric telescopic rod, which is fixedly arranged on the lower mold through a connecting seat, a locking block is fixedly connected to the push rod head end of the electric telescopic rod, and the output end of the digital display control panel is electrically connected to the input end of the electric telescopic rod.

[0015] Furthermore, the auxiliary supporting platform structure includes a lower supporting platform fixedly arranged on the upper side of the base, a lifting chamber is opened inside the lower supporting platform, the upper side of the lifting chamber is open and a lifting slide is arranged at the opening for movement up and down, a first hydraulic cylinder for driving the lifting slide to move up and down is fixedly arranged in the lifting chamber, an upper supporting platform is fixedly arranged on the top side of the lifting slide, a plurality of evenly distributed supporting rollers are rotatably arranged on the upper side of the supporting platform, and the output end of the digital display control panel is electrically connected to the input end of the first hydraulic cylinder.

[0016] A method for automatically demoulding a prefabricated aqueduct comprises the following steps:

[0017] S1: The lower mold rotates under the drive of the flip drive assembly, so that the lower mold is in an upward opening state, the side end mold assembly is in a state of closing the two ends of the lower mold, a steel frame is placed in the cavity formed by the lower mold and the side end mold assembly, and the upper mold moves downward under the support of the lifting assembly, so that the lower mold, the upper mold and the side end mold assembly cooperate with each other to form a prefabricated mold as a whole;

[0018] S2: A cavity is formed between the lower mold, the upper mold and the end mold. Concrete is injected into the cavity through an injection pipe provided on the upper mold until the pouring is completed. During the pouring process, a vibrating rod is inserted into the injection pipe to vibrate the concrete to ensure that the concrete is dense. When the concrete is left to stand and the strength is qualified, demoulding is performed;

[0019] S3: During demoulding, the locking structure releases the lock on the upper mold, and the lifting assembly lifts the upper mold upward, so that the upper mold is first separated from the prefabricated aqueduct body, the push rod of the third hydraulic cylinder is extended, and the pressure sensor detects the abutment pressure between the end mold plate and the prefabricated aqueduct body, thereby increasing the abutment pressure between the end mold plate and the prefabricated aqueduct body to increase the friction force;

[0020] S4: The flipping drive assembly drives the lower mold to flip, so that the opening of the lower mold faces downward, and the first hydraulic cylinder of the auxiliary receiving platform structure drives the upper receiving platform to move upward, so that the top side of the upper receiving platform contacts and receives the prefabricated aqueduct body, and then the push rod of the second hydraulic cylinder extends, thereby driving the end template to clamp the prefabricated aqueduct body and move downward, so that the prefabricated aqueduct body and the lower mold are separated from each other, and then the push rod of the third hydraulic cylinder retracts, driving the end template and the prefabricated aqueduct body to separate from each other, and the auxiliary receiving platform structure receives the prefabricated aqueduct body and moves downward to complete demoulding.

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

[0022] 1. The automatic demoulding of the prefabricated aqueduct body can be achieved by the mutual coordination and cooperation between the flip drive assembly, the auxiliary receiving platform structure, the lifting assembly, the side end mold assembly and the locking structure, and the whole demoulding process is fast and convenient;

[0023] 2. The side end mold assembly has three functions. The first function is to support the formwork during pouring as part of the mold. The second function is to clamp and prevent the prefabricated aqueduct body from falling off when the lower mold is turned over. The third function is to realize the driving separation of the prefabricated aqueduct body and the lower mold.

[0024] 3. The auxiliary receiving platform structure can support the main body of the prefabricated aqueduct and drive the main body of the prefabricated aqueduct to move downward and completely separate from the lower mold to avoid affecting the rotation of the lower mold. Therefore, when the main body of the prefabricated aqueduct is moved away from the auxiliary receiving platform structure, pouring can be carried out again at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a main structural schematic diagram of the present invention;

[0027] Figure 2 The present invention Figure 1 Schematic diagram of the left view structure;

[0028] Figure 3 The present invention Figure 1 A schematic diagram of a three-dimensional structure in a first direction;

[0029] Figure 4 The present invention Figure 2 AA cross-sectional structural diagram;

[0030] Figure 5 The present invention Figure 4 A schematic diagram of the local enlarged structure at B;

[0031] Figure 6 The present invention Figure 4 A schematic diagram of the local enlarged structure at C;

[0032] Figure 7 The present invention Figure 1 A schematic diagram of the three-dimensional structure in the second direction.

[0033] The reference numerals are as follows: 1. base; 101. column; 102. top plate; 103. rope threading hole; 2. lower mold; 3. upper mold; 301. injection pipe; 302. upper edge plate; 4. flip drive assembly; 401. outer support ring; 402. inner swivel ring; 403. slewing bearing; 404. lug; 405. motor; 406. gear; 407. gear ring; 408. fixed seat; 5. auxiliary receiving platform structure; 501. lower support platform; 502. lifting slide; 503. Upper receiving platform; 504, first hydraulic cylinder; 505, supporting roller; 6, lifting assembly; 601, electric hoist; 602, guide rod; 603, lifting rope; 7, digital display control panel; 8, side end mold assembly; 801, second hydraulic cylinder; 802, crossbeam; 803, guide shaft; 804, third hydraulic cylinder; 805, pressure sensor; 806, end mold plate; 9, locking structure; 901, electric telescopic rod; 902, connecting seat; 903, locking block; 10, prefabricated aqueduct body. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. 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 implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 7 As shown, the present invention provides an automatic demoulding device for prefabricated aqueduct, including a base 1 and a digital display control panel 7, a top plate 102 is arranged above the base 1, the top plate 102 is fixedly arranged on the base 1 through a column 101, a lower mold 2 is rotatably arranged between the base 1 and the top plate 102, a flip driving component 4 for driving the lower mold 2 to flip is arranged on the column 101, an upper mold 3 is detachably arranged on the upper side of the lower mold 2, and a lifting component 6 for driving the upper mold 3 to rise and fall is arranged on the top plate 102; side end mold components 8 for limiting the end of the prefabricated aqueduct body 10 before molding and pushing and fixing and driving it to separate from the lower mold 2 after molding are arranged at both ends of the lower mold 2; an auxiliary receiving platform structure 5 for receiving and supporting the demoulding and leading out of the prefabricated aqueduct body 10 is arranged on the base 1.

[0036] See the instruction manual Figure 3 , Figure 4 and Figure 5As shown, two flip drive assemblies 4 are provided, and the two flip drive assemblies 4 are respectively located at the two ends of the lower mold 2. The flip drive assembly 4 includes an outer support ring 401, and ears 404 are fixedly provided on both sides of the outer support ring 401. The ears 404 are provided with a through-column hole for passing through the column 101. The ears 404 are threadedly connected with a first fixing bolt for achieving a tight contact with the column 101. An inner rotating ring 402 is rotatably provided in the outer support ring 401 through a slewing bearing 403, and the lower mold 2 is fixedly connected to the inner side of the inner rotating ring 402 through a second fixing bolt. A motor 405 is fixedly provided on the top side of the outer support ring 401 through a fixing seat 408, and a gear 406 is connected to the output shaft end of the motor 405. A gear ring 407 is fixedly provided on the outer edge of the end of the inner rotating ring 402, and the gear 406 and the gear ring 407 are meshed and connected with each other. The output end of the digital display control panel 7 is electrically connected to the input end of the motor 405. Through the above-mentioned specific structural design, the rotation of the output shaft of the motor 405 can drive the gear 406 to rotate, and the rotation of the gear 406 can drive the meshing gear ring 407 to rotate, thereby driving the inner rotating ring 402 to rotate relative to the outer support ring 401 under the support of the slewing bearing 403, thereby realizing the upside-down flipping of the lower mold 2, so that during pouring, the opening of the lower mold 2 faces upward, and during demoulding, the opening of the lower mold 2 faces downward, thereby cooperating to complete the automatic demoulding of the prefabricated aqueduct body 10.

[0037] See the instruction manual Figure 4 and Figure 6 As shown, the side end mold assembly 8 includes a crossbeam 802 that moves up and down along the lower mold 2, a third hydraulic cylinder 804 is fixedly arranged at the middle position of the crossbeam 802, the push rod head end of the third hydraulic cylinder 804 is connected to the end mold plate 806, a pressure sensor 805 is arranged at the connection between the push rod head end of the third hydraulic cylinder 804 and the end mold plate 806, the output end of the digital display control panel 7 is electrically connected to the input end of the third hydraulic cylinder 804, and the output end of the pressure sensor 805 is electrically connected to the input end of the digital display control panel 7. Guide shafts 803 are arranged at both ends of the crossbeam 802, one end of the guide shaft 803 is fixedly connected to the inner side wall of the lower mold 2, a first guide sliding hole for cooperating and slidingly connecting with the guide shaft 803 is opened through the end of the crossbeam 802, a second hydraulic cylinder 801 for driving the crossbeam 802 to move axially along the guide shaft 803 is fixedly arranged in the lower mold 2, and the output end of the digital display control panel 7 is electrically connected to the input end of the second hydraulic cylinder 801. Through the above-mentioned specific structural design, the side end mold assembly 8 has three functions. The first function is to support the formwork during pouring as a part of the mold. The second function is to clamp and prevent the prefabricated aqueduct body 10 from falling off when the lower mold 2 is flipped. The third function is to realize the driven separation of the prefabricated aqueduct body 10 and the lower mold 2.

[0038] See the instruction manual Figure 3 and Figure 4 As shown, the lifting assembly 6 is provided with two distributed at both ends of the upper mold 3, and the lifting assembly 6 includes an electric hoist 601 fixedly arranged on the top side of the top plate 102, and one end of the lifting rope 603 is connected to the electric hoist 601, and the other end of the lifting rope 603 passes through the rope threading hole 103 provided on the top plate 102 and is fixedly connected to the top side of the upper mold 3. Two guide rods 602 symmetrically distributed around the lifting rope 603 are provided on both sides, and the lower ends of the two guide rods 602 are fixedly connected to the top side of the upper mold 3. A second guide slide hole for cooperating and slidingly connecting with the guide rod 602 is penetrated through the top plate 102, and the output end of the digital display control panel 7 is electrically connected to the input end of the electric hoist 601.

[0039] See the instruction manual Figure 2 and Figure 6 As shown, the base 1 and the top plate 102 are both in the shape of a rectangular parallelepiped, and four columns 101 are provided in a rectangular array. The four columns 101 are fixedly connected to each other at the four corners of the base 1 and the top plate 102, respectively. Upper edge plates 302 are provided on both sides of the upper part of the upper mold 3, and a material injection tube 301 is provided on the upper edge plate 302. A locking structure 9 for locking and locking the upper edge plate 302 is provided on the lower mold 2. The locking structure 9 includes an electric telescopic rod 901, which is fixedly arranged on the lower mold 2 through a connecting seat 902, and a locking block 903 is fixedly connected to the push rod head end of the electric telescopic rod 901, and the output end of the digital display control panel 7 is electrically connected to the input end of the electric telescopic rod 901.

[0040] See the instruction manual Figure 1 and Figure 4 As shown, the auxiliary supporting platform structure 5 includes a lower supporting platform 501 fixedly arranged on the upper side of the base 1, a lifting chamber is opened inside the lower supporting platform 501, the upper side of the lifting chamber is opened and a lifting slide 502 is arranged at the opening for movement up and down, a first hydraulic cylinder 504 for driving the lifting slide 502 to move up and down is fixedly arranged in the lifting chamber, an upper supporting platform 503 is fixedly arranged on the top side of the lifting slide 502, a plurality of evenly distributed supporting rollers 505 are rotatably arranged on the upper side of the upper supporting platform 503, and the output end of the digital display control panel 7 is electrically connected to the input end of the first hydraulic cylinder 504.

[0041] Working principle and technical effect of the present invention:

[0042] First, the lower mold 2, the upper mold 3 and the side end mold assembly 8 are combined. The lower mold 2 rotates under the drive of the flip drive assembly 4, so that the lower mold 2 is in a state of opening upwards, and the side end mold assembly 8 is in a state of closing the two ends of the lower mold 2. A steel frame is inserted into the cavity formed by the lower mold 2 and the side end mold assembly 8, and the upper mold 3 moves downward under the support of the lifting assembly 6, so that the lower mold 2, the upper mold 3 and the side end mold assembly 8 cooperate with each other to form a prefabricated mold as a whole; the lower mold 2, the upper mold 3 and the end mold plate 806 form a mold cavity, and concrete is injected into the mold cavity by the injection pipe 301 provided on the upper mold 3 until the pouring is completed. During the pouring process, the injection pipe 301 is extended into the vibrating rod for vibration to ensure that the concrete is dense, and the concrete is left to stand and wait for the concrete strength to meet the requirements before demoulding; when demoulding, the locking structure 9 releases the lock on the upper mold 3, and the lifting assembly 6 lifts the upper mold 3 upward, so that the upper mold 3 is first First, it is separated from the prefabricated aqueduct body 10, the push rod of the third hydraulic cylinder 804 is extended, and the pressure sensor 805 detects the abutment pressure between the end template 806 and the prefabricated aqueduct body 10, thereby increasing the abutment pressure between the end template 806 and the prefabricated aqueduct body 10 to increase the friction force; the flipping drive component 4 drives the lower mold 2 to flip, so that the opening of the lower mold 2 faces downward, and the first hydraulic cylinder 504 of the auxiliary receiving platform structure 5 drives the upper receiving platform 503 to move upward, so that the top side of the upper receiving platform 503 contacts and receives the prefabricated aqueduct body 10, and then the push rod of the second hydraulic cylinder 801 is extended, thereby driving the end template 806 to clamp the prefabricated aqueduct body 10 and move downward, so that the prefabricated aqueduct body 10 and the lower mold 2 are separated from each other, and then the push rod of the third hydraulic cylinder 804 is retracted, driving the end template 806 and the prefabricated aqueduct body 10 to separate from each other, and the auxiliary receiving platform structure 5 receives the prefabricated aqueduct body 10 and moves downward to complete demoulding.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A prefabricated aqueduct automatic demoulding device, characterized in that: The invention comprises a base (1), a digital display control panel (7) and a side end mold assembly (8); a top plate (102) is arranged above the base (1); the top plate (102) is fixedly arranged on the base (1) via a column (101); a lower mold (2) is rotatably arranged between the base (1) and the top plate (102); a flip driving assembly (4) for driving the lower mold (2) to flip is arranged on the column (101); an upper mold (3) is detachably arranged on the upper side of the lower mold (2); and a lifting assembly (6) for driving the upper mold (3) to move up and down is arranged on the top plate (102); Both ends of the lower mold (2) are provided with side end mold assemblies (8) for limiting the end of the prefabricated aqueduct body (10) before molding and for pushing and fixing the end after molding and driving the end to separate from the lower mold (2); The base (1) is provided with an auxiliary receiving platform structure (5) for receiving and supporting the demoulding and leading out of the prefabricated aqueduct body (10); The side end mold assembly (8) comprises a crossbeam (802) that moves up and down along the lower mold (2), a third hydraulic cylinder (804) is fixedly arranged at the middle position of the crossbeam (802), a push rod head end of the third hydraulic cylinder (804) is connected to the end mold plate (806), a pressure sensor (805) is arranged at the connection between the push rod head end of the third hydraulic cylinder (804) and the end mold plate (806), the output end of the digital display control panel (7) is electrically connected to the input end of the third hydraulic cylinder (804), and the output end of the pressure sensor (805) is electrically connected to the input end of the digital display control panel (7); Guide shafts (803) are provided at both ends of the crossbeam (802), one end of the guide shaft (803) is fixedly connected to the inner wall of the lower mold (2), a first guide sliding hole is provided through the end of the crossbeam (802) for slidingly connecting with the guide shaft (803), a second hydraulic cylinder (801) for driving the crossbeam (802) to move axially along the guide shaft (803) is fixedly provided in the lower mold (2), and the output end of the digital display control panel (7) is electrically connected to the input end of the second hydraulic cylinder (801).

2. According to claim 1, the automatic demoulding equipment for prefabricated aqueduct is characterized in that: The flip drive assembly (4) is provided with two parts distributed at both ends of the lower mold (2), and the flip drive assembly (4) comprises an outer support ring (401), and ears (404) are fixedly provided on both sides of the outer support ring (401), and a through-column hole for passing the column (101) is opened through the ear (404), and a first fixing bolt for achieving a tight abutment with the column (101) is threadedly connected to the ear (404), and an inner rotating ring (402) is rotatably provided in the outer support ring (401) through a slewing bearing (403), and the lower mold (2) is fixedly connected to the inner side of the inner rotating ring (402) by a second fixing bolt.

3. The automatic demoulding equipment for prefabricated aqueduct according to claim 1, characterized in that: The lifting assembly (6) is provided with two guide rods (602) distributed at both ends of the upper mold (3), and the lifting assembly (6) includes an electric hoist (601) fixedly arranged on the top side of the top plate (102), one end of the lifting rope (603) is connected to the electric hoist (601), and the other end of the lifting rope (603) passes through the rope threading hole (103) provided on the top plate (102) and is fixedly connected to the top side of the upper mold (3), and two guide rods (602) symmetrically distributed around the lifting rope (603) are provided on both sides of the lifting rope (603), and the lower ends of the two guide rods (602) are fixedly connected to the top side of the upper mold (3), and a second guide sliding hole for cooperating and slidingly connecting with the guide rod (602) is provided through the top plate (102), and the output end of the digital display control panel (7) is electrically connected to the input end of the electric hoist (601).

4. The automatic demoulding equipment for prefabricated aqueduct according to claim 2, characterized in that: A motor (405) is fixedly arranged on the top side of the outer support ring (401) via a fixing seat (408); a gear (406) is connected to the output shaft end of the motor (405); a gear ring (407) is fixedly arranged on the outer edge of the end of the inner rotating ring (402); the gear (406) and the gear ring (407) are meshedly connected to each other; and the output end of the digital display control panel (7) is electrically connected to the input end of the motor (405).

5. The automatic demoulding equipment for prefabricated aqueduct according to claim 1, characterized in that: The base (1) and the top plate (102) are both in the shape of a rectangular parallelepiped. The four upright posts (101) are arranged in a rectangular array. The four upright posts (101) are respectively fixedly connected to the four corners of the base (1) and the top plate (102). Upper edge plates (302) are arranged on both sides of the upper part of the upper mold (3). The upper edge plates (302) are provided with injection tubes (301). The lower mold (2) is provided with a locking structure (9) for locking the upper edge plates (302).

6. The automatic demoulding equipment for prefabricated aqueduct according to claim 5, characterized in that: The locking structure (9) comprises an electric telescopic rod (901), the electric telescopic rod (901) being fixedly arranged on the lower mould (2) via a connecting seat (902), a locking block (903) being fixedly connected to a push rod head end of the electric telescopic rod (901), and an output end of the digital display control panel (7) being electrically connected to an input end of the electric telescopic rod (901).

7. The automatic demoulding equipment for prefabricated aqueduct according to claim 1, characterized in that: The auxiliary receiving platform structure (5) comprises a lower supporting platform (501) fixedly arranged on the upper side of the base (1); a lifting chamber is provided inside the lower supporting platform (501); the upper side of the lifting chamber is open and a lifting slide (502) is provided at the opening for movement up and down; a first hydraulic cylinder (504) for driving the lifting slide (502) to move up and down is fixedly arranged in the lifting chamber; an upper receiving platform (503) is fixedly arranged on the top side of the lifting slide (502); a plurality of evenly distributed supporting rollers (505) are rotatably provided on the upper side of the upper receiving platform (503); and the output end of the digital display control panel (7) is electrically connected to the input end of the first hydraulic cylinder (504).

8. A method for automatically demoulding a prefabricated aqueduct, using the automatic demoulding device for a prefabricated aqueduct according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: the lower mold (2) rotates under the drive of the flip drive assembly (4), so that the lower mold (2) is in a state where the opening faces upward, the side end mold assembly (8) is in a state where the two ends of the lower mold (2) are closed, a steel frame is placed in the cavity formed by the lower mold (2) and the side end mold assembly (8), and the upper mold (3) moves downward under the support of the lifting assembly (6), so that the lower mold (2), the upper mold (3) and the side end mold assembly (8) cooperate with each other to form a prefabricated mold as a whole; S2: a mold cavity is formed between the lower mold (2), the upper mold (3) and the end mold plate (806), and concrete is injected into the mold cavity through an injection pipe (301) provided on the upper mold (3) until the pouring is completed. During the pouring process, a vibrating rod is inserted into the injection pipe (301) to vibrate the concrete to ensure that it is dense. The concrete is left to stand and demould when the concrete strength meets the requirements; S3: During demoulding, the locking structure (9) releases the lock on the upper mold (3), and the lifting assembly (6) lifts and moves the upper mold (3) upward, so that the upper mold (3) is first separated from the prefabricated aqueduct body (10), the push rod of the third hydraulic cylinder (804) is extended, and the pressure sensor (805) detects the abutment pressure between the end mold plate (806) and the prefabricated aqueduct body (10), thereby increasing the abutment pressure between the end mold plate (806) and the prefabricated aqueduct body (10) to increase the friction force; S4: The flipping drive assembly (4) drives the lower mold (2) to flip, so that the opening of the lower mold (2) faces downward, and the first hydraulic cylinder (504) of the auxiliary receiving platform structure (5) drives the upper receiving platform (503) to move upward, so that the top side of the upper receiving platform (503) contacts and receives the prefabricated aqueduct body (10), and then the push rod of the second hydraulic cylinder (801) extends, thereby driving the end template (806) to clamp the prefabricated aqueduct body (10) and move downward, so that the prefabricated aqueduct body (10) and the lower mold (2) are separated from each other, and then the push rod of the third hydraulic cylinder (804) retracts, driving the end template (806) and the prefabricated aqueduct body (10) to separate from each other, and the auxiliary receiving platform structure (5) receives the prefabricated aqueduct body (10) and moves downward to complete demoulding.

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