A bridge precasting apparatus

Abstract

The application provides a bridge prefabrication device and relates to the technical field of beam slab prefabrication. The device comprises a frame, the frame has a straight-through cavity, the cavity bottom is a protrusion for lifting a beam slab mold, the cavity top has a fourth slot, the fourth slot is below a hanger directly connected with the frame, a square box has an openable and closable discharge opening, the square box is suspended below the hanger and is in sliding cooperation with the hanger, a plurality of sliding frames are arranged in a linear array on the side wall of the frame, each sliding frame is independently in sliding cooperation with the frame with resistance, in addition, the highest part of the sliding frame is level with the lowest part of the square box, and the lowest part of the sliding frame is level with the highest part of the protrusion. In the application, the square box rubs against the winding rod in the sliding path, the sliding frame corresponding to the winding rod slides into the cavity and abuts against the beam slab mold in the process that the winding rod winds the first soft rod, a blocking part for preventing the concrete at the discharge opening from falling is formed, the pouring of the special-shaped mold is completed, and a special-shaped beam slab is prepared.

Description

Technical Field

[0001] This invention relates to the field of beam and slab prefabrication technology, and in particular to a bridge prefabrication equipment. Background Technology

[0002] Beams and slabs are mostly regular, square rectangles, rarely polygonal or irregularly shaped. Therefore, beam and slab prefabrication, especially for bridge beams and slabs, is limited to using prefabrication equipment to produce beams and slabs of standard specifications. For the rare irregular beams and slabs, the current methods are limited to manual casting. Therefore, it can be determined that the applicable scope of beam and slab prefabrication equipment is still somewhat limited. Therefore, this article focuses on irregular beams and slabs and proposes a prefabrication equipment for beams and slabs. Summary of the Invention

[0003] The purpose of this invention is to provide a bridge prefabrication device to solve the technical problem that it is difficult or impossible for beam and slab prefabrication devices to prefabricate irregular beams and slabs in a simple way.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A bridge prefabrication device, comprising:

[0006] The frame has a through cavity;

[0007] The bottom of the cavity is a protrusion for supporting the beam plate mold, and the top of the cavity has a fourth groove. Below the fourth groove is a hanger that is directly connected to the frame.

[0008] A square box with an openable and closable discharge port;

[0009] The square box is suspended below the hanging bracket and slides in conjunction with the bracket.

[0010] Carriages, several carriages arranged in a straight line on the side wall of the frame;

[0011] Each carriage can independently slide against the frame with resistance. In addition, the highest point of the carriage is level with the lowest point of the box, and the lowest point of the carriage is level with the highest point of the protrusion.

[0012] One winding rod is provided for each carriage.

[0013] Each winding rod is located within the sliding path of the square box;

[0014] The first flexible rod passes through the carriage and extends outward to both ends;

[0015] One end of the first flexible rod is fixed to the side wall of the frame, and the other end of the first flexible rod is fixed to the winding rod. When the square box slides relative to the bracket, the square box rubs against the winding rod in its sliding path, so that the slide corresponding to the winding rod slides into the cavity and abuts against the beam plate mold during the winding of the first flexible rod, forming a local blocking part to prevent concrete from falling at the discharge port.

[0016] Preferably, the frame has at least two opposing sidewalls for linearly arranging several carriages.

[0017] Preferably, each carriage is equipped with at least one spring for sliding the carriage out of the cavity and out of the frame.

[0018] Preferably, the side wing of the hanger to the side wall of the frame has a fifth groove;

[0019] The fifth slot is equipped with a toothed rod that slides with itself;

[0020] The square box has two extensions at its beveled angle that are respectively connected to the toothed bar;

[0021] The frame sidewall has a third groove;

[0022] The extension also includes a third groove slider that extends into the third groove and slides into the third groove.

[0023] The third groove slider has a friction block at its outward-facing end. The friction block is used to make frictional contact with the winding rod during the sliding fit between the square box and the hanger.

[0024] Preferably, the square box is provided with rollers on both sides that rotate with the square box, wherein two rollers extend outward relative to the square box, and only one of the outwardly extending rollers contacts the side wall of the frame.

[0025] There is a second flexible rod between the two rollers. The second flexible rod passes through the square box and wraps around the two rollers. When one of the rollers rolls into contact with the side wall of the frame, the second flexible rod rotates around the two rollers inside the square box.

[0026] Preferably, a plurality of partitions are arranged in a straight line on the inner wall of the square box, wherein each partition is located within the movement path of the second flexible rod, so that when the second flexible rod rotates around the two rollers, the plurality of partitions are repeatedly deflected within the square box.

[0027] Preferably, the partition is connected to the box based on a soft substrate.

[0028] Preferably, the surface of the second flexible rod has a plurality of grooves for repeatedly engaging the partition.

[0029] Preferably, the top of the frame has at least one drive section for meshing with the rack.

[0030] The beneficial effects of this invention are:

[0031] In this invention, the square box rubs against the winding rod in its sliding path, causing the slide corresponding to the winding rod to slide into the cavity and abut against the beam plate mold during the winding of the first flexible rod, forming a local blocking part to prevent concrete from falling at the discharge port, thus completing the casting of the irregular mold and producing the irregular beam plate. Attached Figure Description

[0032] Figure 1 This is a structural schematic diagram of a bridge prefabrication equipment;

[0033] Figure 2 for Figure 1 A structural diagram viewed from below;

[0034] Figure 3 This is a structural diagram of the frame assembly and drive unit;

[0035] Figure 4 This is a schematic diagram of the hoisting mechanism;

[0036] Reference numerals: 1. Frame; 2. First groove; 3. Second groove; 4. Protrusion; 5. First spring; 6. Second spring; 7. Slide; 8. First flexible rod; 9. Winding rod extension; 10. Winding rod; 11. Reducer; 12. Motor; 13. Shaft; 14. Third groove; 15. Hanger; 16. Square box; 17. Fourth groove; 18. Gear; 19. Fifth groove; 20. Sixth groove; 21. Seventh groove; 22. Partition; 23. Soft base; 24. Second flexible rod; 25. Extension; 26. Third groove slider; 27. Friction block; 28. Roller. Detailed Implementation

[0037] To make the technical means, creative features, achieved objectives, and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this invention and not all embodiments. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention.

[0038] Specific embodiments of the present invention are described below with reference to the accompanying drawings.

[0039] Example 1

[0040] This embodiment presents a bridge prefabrication device; please refer to [link / reference]. Figures 1-4 The bridge prefabrication equipment includes a frame 1, specifically, the frame 1 has a through cavity, wherein the bottom of the cavity is an upward protrusion 4, and the top of the cavity is as follows: Figure 2 and Figure 3 The fourth slot 17 is shown.

[0041] It should be noted that there is a second groove 3 inside the protrusion 4. A moving part (not shown in this text) for guiding the movement of the beam and slab mold can be configured in the second groove 3. Additionally, a vibration mechanism for generating high-frequency vibrations, such as a vibration motor, can also be configured in the second groove 3.

[0042] Please refer to Figure 3 , there is a hanging bracket 15 connected to the frame 1 below the fourth groove 17. For the hanging bracket​​​​​​​​​​​​​​​​​​​​​​Specifically, a number of sliding frames 7 are linearly arrayed along the regions where the sixth groove 20 and the seventh groove 21 are located at two opposite side walls of the frame 1. For the sliding frame 7, its interior is hollow. Thus, the sliding frame 7 can be regarded as an enclosed frame composed of four rods. Further explanation is that the upper rod and the lower rod of the sliding frame 7 are respectively inserted into the sixth groove 20 and the seventh groove 21, enabling the entire sliding frame 7 to move horizontally relative to the frame 1. The rods in the left-right direction of the sliding frame 7 can prevent the sliding frame 7 from slipping off the frame 1. The most important point is that the highest point of the sliding frame 7 is at the same level as the lowest point of the square box 16, and the lowest point of the sliding frame 7 is at the same level as the highest point of the protrusion 4.

[0048] Please refer to Figure 1 and Figure 2 , and each sliding frame 7 is equipped with springs. Specifically, the first spring 5 and the second spring 6 are located inside the sliding frame 7, so that when the sliding frame 7 slides into the frame 1, there is always a tendency or kinetic energy to slide out of the frame 1 towards the cavity.

[0049] Above each sliding frame 7, there is a winding rod 10. Specifically, the winding rod 10 is facing the third groove 14 and contacting the friction block 27. In addition, there is a shaft 13 fixed to the side wall of the frame 1 inside the winding rod 10. The function of this shaft 13 is to enable the winding rod 10 to rotate axially around the shaft 13. Further explanation is that the winding rod 10 also has a winding rod extension part 9 extending downward.

[0050] Each sliding frame 7 is equipped with a first soft rod 8. Specifically, the first soft rod 8 penetrates the sliding frame 7 at the positions shown by Figure 1 and Figure 2 , and both ends of the first soft rod 8 extend outward from the sliding frame 7. Further explanation is that one end of the first soft rod 8 is fixed to the side wall of the frame 1, and the other end of the first soft rod 8 is fixed to the winding rod extension part 9. Thus, when the friction block 27 moves relative to the hanging frame 15 in the square box 16, then the friction block 27 will contact the winding rod 10 in its sliding path, and based on the winding rod 10 and the winding rod extension part 9, the first soft rod 8 will be wound, causing the sliding frame 7 to slide into the cavity.

[0051] Taking the "convex" - shaped beam - slab as an example, when the length of the openable discharge port is facing the length of the rectangular body in the "convex" shape, then the sliding frames 7 on both sides will stop moving after contacting the side walls of the rectangular body. Thus, the concrete falling from the discharge port will completely enter the rectangular body.

[0052] However, the length of the protruding part of the rectangular body is less than the length of the discharge port. Therefore, the sliding frames 7 on both sides will further slide to the two sides of the protruding part, and during the further sliding of the sliding frames 7, the combination of the sliding frames 7 forms a partial blocking part for preventing the concrete at the discharge port from falling, thereby guiding the concrete to fall into the protruding part from the unblocked discharge port, and then completing the pouring work of the "convex" - shaped beam - slab.

[0053] It should be noted that when the slide 7 contacts the beam plate mold, the slide 7 is blocked and cannot move further, and the friction coefficient of the friction block 27 is limited. Therefore, when the sliding of the slide 7 is blocked, the rolling friction between the friction block 27 and the winding rod 10 will become sliding friction.

[0054] Example 2

[0055] This embodiment is an extended example of Embodiment 1.

[0056] For ease of review, relevant content from Example 1 is copied into this example.

[0057] Please see Figures 1-4 The bridge prefabrication equipment includes a frame 1, specifically, the frame 1 has a through cavity, wherein the bottom of the cavity is an upward protrusion 4, and the top of the cavity is as follows: Figure 2 and Figure 3 The fourth slot 17 is shown.

[0058] It should be noted that the protrusion 4 has a second groove 3, in which a moving part (not shown in this document) for guiding the movement of the beam plate mold can be configured. In addition, a vibration mechanism for generating high-frequency vibration, such as a vibration motor, can also be configured in the second groove 3.

[0059] Please see Figure 3 Below the fourth slot 17, there is a hanger 15 connected to the frame 1. The hanger 15 is a rectangular frame. Thus, the hanger 15 and the two opposite side walls of the frame 1 form two opposite fifth slots 19. The function of the fifth slot 19 is to hang the square box 16.

[0060] As explained above, the function of the fifth slot 19 is to support the square box 16. Specifically, as follows... Figure 4 The square box 16 shown has two opposing extensions 25 at its angled corners. Furthermore, each extension 25 is fitted with a toothed rod 18. Please refer to... Figure 2 For reference, the toothed rod 18 is located in the fifth groove 19 and slides in the fifth groove 19. Thus, it can be determined that the function of the bracket 15 and the fifth groove 19 formed by the two opposing side walls of the bracket 15 to the frame 1 is to provide a square box 16 for temporarily holding concrete above the protrusion 4 and to allow the square box 16 to slide relative to the bracket 15. In addition, it should be noted that the central area of ​​the bottom of the square box 16 has an openable discharge port.

[0061] Please see Figures 1-3 The two opposite sidewalls of frame 1 are, from top to bottom, the third groove 14, the sixth groove 20, and the seventh groove 21.

[0062] The third groove 14 has a third groove slider 26 that is fixedly connected to the extension 25. In addition, a friction block 27 is provided on the side of the third groove slider 26 facing away from the extension 25. For the function of the friction block 27, please read the following content.

[0063] Please see Figure 3 The sixth slot 20 and the seventh slot 21 are two slots with the same specifications and dimensions at different heights. In addition, the sixth slot 20 and the seventh slot 21 are common slides of the carriage 7.

[0064] Specifically, several carriages 7 are arranged in a straight line along the areas of the sixth groove 20 and the seventh groove 21 on the two opposite side walls of the frame 1. Each carriage 7 is hollow inside, thus it can be considered a closed frame composed of four rods. Furthermore, the upper and lower rods of the carriage 7 are inserted into the sixth groove 20 and the seventh groove 21 respectively, allowing the entire carriage 7 to move laterally relative to the frame 1. The left and right rods of the carriage 7 prevent it from sliding off the frame 1. Most importantly, the highest point of the carriage 7 is level with the lowest point of the box 16, and the lowest point of the carriage 7 is level with the highest point of the protrusion 4.

[0065] Please see Figure 1 and Figure 2 Each carriage 7 is equipped with a spring. Specifically, the first spring 5 and the second spring 6 are located inside the carriage 7, so that when the carriage 7 slides into the frame 1, it always has a tendency to slide out of the cavity and the frame 1, or in other words, kinetic energy.

[0066] Above each carriage 7 is a winding rod 10. Specifically, the winding rod 10 is directly opposite the third groove 14 and contacts the friction block 27. In addition, there is a shaft 13 fixed to the side wall of the frame 1 inside the winding rod 10. The function of the shaft 13 is to allow the winding rod 10 to rotate axially around the shaft 13. Furthermore, the winding rod 10 also has a downwardly extending winding rod extension 9.

[0067] Each carriage 7 is equipped with a first flexible bar 8, specifically, this first flexible bar 8 is composed of... Figure 1 and Figure 2 The position shown penetrates the carriage 7, and the two ends of the first flexible rod 8 extend outward from the carriage 7. To further explain, one end of the first flexible rod 8 is fixed to the side wall of the frame 1, and the other end of the first flexible rod 8 is fixed to the winding rod extension 9. Thus, when the square box 16 moves relative to the hanger 15, the friction block 27 will contact the winding rod 10 in its sliding path and wind the first flexible rod 8 based on the winding rod 10 and the winding rod extension 9, causing the carriage 7 to slide into the cavity.

[0068] Taking the "convex"-shaped beam slab as an example, when the length of the openable discharge port is aligned with the length of the rectangular body in the "convex" shape, then after the sliding frames 7 on both sides contact the side walls of the rectangular body, they will stop moving. Thus, the concrete falling from the discharge port will completely enter the rectangular body.

[0069] However, the length of the protruding part of the rectangular body is less than the length of the discharge port. Therefore, the sliding frames 7 on both sides will further slide on both sides of the protruding part, and during the further sliding of the sliding frames 7, a partial blocking part for preventing the concrete at the discharge port from falling is formed by the combination of the sliding frames 7, so as to guide the concrete to fall into the protruding part from the unblocked discharge port, and then complete the pouring work of the "convex"-shaped beam slab.

[0070] Please refer to Figure 4 , in this embodiment, roller wheels 28 that are rotationally mated with the square box 16 are provided on both sides of the square box 16. Among them, the two roller wheels 28 extend outward relative to the square box 16. In addition, only one of the outward-extending roller wheels 28 contacts the side wall of the frame 1; there is also a second soft rod 24 between the two roller wheels 28. The second soft rod 24 passes through the square box 16 and winds around the two roller wheels 28, and is used to make the second soft rod 24 rotate around the two roller wheels 28 in the square box 16 when one of the roller wheels 28 rolls and contacts the side wall of the frame 1.

[0071] The ready-mixed concrete needs to always maintain a relatively flowing state before pouring. Therefore, in this embodiment, when the square box 16 slides relative to the hanging bracket 15, the second soft rod 24 will rotate around the two roller wheels 28 in the square box 16, and thereby stir the concrete in the square box 16 to maintain the performance of the concrete.

[0072] As a further upgrade, a number of partition plates are linearly arrayed on the inner wall of the square box 16. Among them, each partition plate 22 is located within the moving path of the second soft rod 24, and is used to make the number of partition plates 22 deflect repeatedly in the square box 16 when the second soft rod 24 rotates around the two roller wheels 28. It should be noted that the partition plates 22 are connected to the square box 16 based on the soft base 23 as shown in Figure 4 . In addition, the surface of the second soft rod 24 has a number of grooves for repeatedly engaging with the partition plates 22. Thus, the partition plates 22 that repeatedly deflect in the square box 16 can further stir the concrete and further maintain the performance of the concrete.

[0073] The content still required in Embodiment 1 and Embodiment 2 is as follows:

[0074] ① Two motors 12 are provided at the top of the frame 1, and each motor 12 is equipped with a speed reducer 11 that is meshed and linked with the toothed rod 18. Thus, when the motor 12 rotates forward or backward, the square box 16 can move forward or backward at the hanging bracket 15.

[0075] ② Please refer to Figures 1-3The first groove 2 is located on both sides of the protrusion 4. The function of the first groove 2 is to collect some concrete or residue cut from the top of the slide 7 through the sixth groove 20 when the slide 7 moves outward from the cavity to the frame 1.

[0076] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0077] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge prefabrication equipment, characterized in that, include: The frame has a through cavity; The bottom of the cavity is a protrusion for supporting the beam plate mold, and the top of the cavity has a fourth groove. Below the fourth groove is a hanger that is directly connected to the frame. A square box with an openable and closable discharge port; The square box is suspended below the hanging bracket and slides in conjunction with the bracket. Carriages, several carriages arranged in a straight line on the side wall of the frame; Each carriage can independently slide against the frame with resistance. In addition, the highest point of the carriage is level with the lowest point of the box, and the lowest point of the carriage is level with the highest point of the protrusion. One winding rod is provided for each carriage. Each winding rod is located within the sliding path of the square box; The first flexible rod passes through the carriage and extends outward to both ends; One end of the first flexible rod is fixed to the side wall of the frame, and the other end of the first flexible rod is fixed to the winding rod. When the square box slides relative to the bracket, the square box rubs against the winding rod in its sliding path, so that the slide corresponding to the winding rod slides into the cavity and abuts against the beam plate mold during the winding of the first flexible rod, forming a local blocking part to prevent concrete from falling at the discharge port.

2. The bridge prefabrication equipment according to claim 1, characterized in that: The frame has at least two opposing sidewalls for linearly arranging several carriages.

3. The bridge prefabrication equipment according to claim 2, characterized in that: Each carriage is equipped with at least one spring for sliding the carriage out of the cavity and out of the frame.

4. A bridge prefabrication equipment according to claim 1, characterized in that: The side wing of the hanger has a fifth groove from the side wall of the frame; The fifth slot is equipped with a toothed rod that slides with itself; The square box has two extensions at its beveled angle that are respectively connected to the toothed bar; The frame sidewall has a third groove; The extension also includes a third groove slider that extends into the third groove and slides into the third groove. The third groove slider has a friction block at its outward-facing end. The friction block is used to make frictional contact with the winding rod during the sliding fit between the square box and the hanger.

5. A bridge prefabrication equipment according to claim 4, characterized in that: The square box is provided with rollers on both sides that rotate with the square box. Two rollers extend outward relative to the square box, while only one of the outwardly extending rollers contacts the side wall of the frame. There is a second flexible rod between the two rollers. The second flexible rod passes through the square box and wraps around the two rollers. When one of the rollers rolls into contact with the side wall of the frame, the second flexible rod rotates around the two rollers inside the square box.

6. A bridge prefabrication equipment according to claim 5, characterized in that: Several partitions are arranged in a straight line on the inner wall of the square box. Each partition is located within the movement path of the second flexible rod. When the second flexible rod rotates around the two rollers, the partitions deflect repeatedly inside the square box.

7. A bridge prefabrication equipment according to claim 6, characterized in that: The partition is connected to the square box.

8. A bridge prefabrication equipment according to claim 7, characterized in that: The surface of the second flexible rod has several grooves for repeatedly engaging and disengaging the partition.

9. A bridge prefabrication equipment according to claim 4, characterized in that: The top of the frame has at least one drive section for meshing with the rack.

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