A hinge concrete module potential energy conversion fastening device

Abstract

The present application relates to bridge engineering construction technical field, it discloses a kind of based on hinged concrete module potential energy conversion fastening device, solve the problem that hinged concrete module connection is not tight, not firm, leading to poor integrity, uneven stress distribution, damage loss stability etc..The fastening device in the present application includes fastener, the fastener includes vertical pressure-bearing mechanism and fastening frame;The vertical pressure-bearing mechanism includes support platform, support structure, support bottom plate, pressure-bearing steel plate, elastic structure and L-type hydraulic oil cylinder;Based on this structure, the gravity potential energy of load on pressure-bearing steel plate is transmitted to support bottom plate by elastic structure, and then to first hydraulic telescopic arm, so that the liquid in L-type hydraulic oil cylinder is vertically extruded, generates horizontal thrust to drive transverse hydraulic telescopic arm to stretch, to drive the movement of fastening frame, and then drive the movement of prefabricated concrete module anchored with fastening frame, realize the conversion of gravitational potential energy into fastening force, so that fabricated concrete structure connection is more closely, reduce the gap of contact surface.

Description

Technical Field

[0001] This invention relates to the field of bridge engineering construction technology, specifically to a potential energy conversion and fastening device based on articulated concrete modules. Background Technology

[0002] Reinforced concrete arch bridges have many advantages, including excellent durability, low maintenance costs, and simple construction. Currently, large-span cast-in-place concrete arch bridges are usually constructed using ground-supported scaffolding and cable-stayed installation methods. However, these methods are expensive, have long construction periods, and safety issues during construction are the main factors limiting their adoption.

[0003] Arch frames constructed using prefabricated articulated concrete modules can effectively withstand the loads during the casting of the upper arch ring. However, the beams cannot fit together well due to manufacturing precision limitations. The articulated concrete module connections are weak points, prone to separation at the bottom, and have gaps at the contact surfaces. This can lead to problems such as poor overall integrity, uneven stress distribution, and instability upon failure, making it difficult to maximize their performance advantages. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a potential energy conversion fastening device based on articulated concrete modules, which solves the problems of poor integrity, uneven stress distribution, and instability due to loose and weak connections of articulated concrete modules.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows:

[0006] A potential energy conversion fastening device based on articulated concrete modules includes fasteners, the fasteners comprising a vertical pressure-bearing mechanism and a fastening frame; the vertical pressure-bearing mechanism includes a support platform, a support structure, a support base plate, a pressure-bearing steel plate, an elastic structure, and an L-shaped hydraulic cylinder;

[0007] The support platform is connected to the support base plate via a support structure. The upper end of the support base plate is connected to a pressure-bearing steel plate via an elastic structure. The support platform is provided with through holes of a size adapted to the reserved holes on the precast concrete module. The lower end of the support base plate is provided with connecting threads. The L-shaped hydraulic cylinder is connected to a first hydraulic telescopic arm at its upper end. In application, the hydraulic rod in the first hydraulic telescopic arm passes through the reserved holes of the precast concrete module and the through holes on the support platform, and then screws into the support base plate via the connecting threads. The L-shaped hydraulic cylinder is connected to a transverse hydraulic telescopic arm at its lower end. The outer end of the transverse hydraulic telescopic arm is connected to a fastening frame. In application, the fastening frame is anchored below the precast concrete module.

[0008] Furthermore, the support platform is provided with multiple connecting holes along the inner ring. The first hydraulic telescopic arm is provided with a flange. In application, after the hole on the flange of the first hydraulic telescopic arm is aligned with the connecting hole, the connecting screw is inserted into the connecting hole and then tightened with a nut.

[0009] Furthermore, the support structure includes two symmetrically distributed sets of support bodies. Each set of support bodies includes two first hinged bases disposed on the upper surface of the support platform, a second hinged base disposed on the lower surface of the support base plate, a first hydraulic support rod, and a second hydraulic support rod. The upper parts of the first hydraulic support rod and the second hydraulic support rod are both connected to the second hinged base. The lower parts of the first hydraulic support rod and the second hydraulic support rod are respectively connected to the two first hinged bases.

[0010] Furthermore, the elastic structure includes multiple rigid springs.

[0011] Furthermore, the first hydraulic telescopic arm is also equipped with a rubber piston for sealing the holes reserved on the precast concrete module during application.

[0012] Furthermore, the outer side of the lateral hydraulic telescopic arm is wrapped with a movable sleeve, and the upper end of the movable sleeve is provided with a sliding opening, so that the first hydraulic telescopic arm can be displaced laterally along the sliding opening.

[0013] Furthermore, the fastening frame includes a thick-walled square steel pipe and a second hydraulic telescopic arm. The front end of the thick-walled square steel pipe is inserted into a pre-drilled connection hole on the transverse hydraulic telescopic arm. One end of the thick-walled square steel pipe is hinged to the transverse hydraulic telescopic arm by screwing in a first pin. A slide rail is provided above the thick-walled square steel pipe on the side of the transverse hydraulic telescopic arm. A slot is provided at the lower part of the second hydraulic telescopic arm. The slide rail fits into the slot, allowing the second hydraulic telescopic arm to move along the slide rail. An anchoring steel pipe is welded above the second hydraulic telescopic arm. In application, anchoring bolts are passed through the pre-drilled holes in the anchoring steel pipe and anchored to the bottom surface of the precast concrete module.

[0014] Furthermore, the device includes two fasteners applied to the same precast concrete module, with a hinge joint at the other end of the thick-walled square steel tube, and the thick-walled square steel tubes in the two fasteners are connected by screwing a second pin into the hinge joint.

[0015] Furthermore, the thick-walled square steel tube is provided with a hinged disc in the middle. The thickness of the hinged disc is half the height of the thick-walled square steel tube. The thick-walled square steel tubes used in the fastening device of the front and rear precast concrete modules form two intersection points, which are overlapped by the hinged disc at the intersection points.

[0016] The beneficial effects of this invention are:

[0017] 1. Based on the above-mentioned fastening device structure of the present invention, during installation, the first hydraulic telescopic arm is first passed through the reserved hole of the precast concrete module, and then the support platform and support base plate are anchored on it. At the same time, the second hydraulic telescopic arm is nested on the thick-walled square steel, and the anchoring steel pipe is bolted to the bottom of the precast concrete module. When the anchoring steel pipes come together, the joint of the precast concrete module overlaps more tightly, thereby making the complete concrete structure more solid and firm. This structure is convenient and quick to install. The main structure can be pre-assembled and bolted to the concrete module after passing through the hole, which improves the installation efficiency.

[0018] 2. In application, the movement of the fastening frame causes the anchoring steel pipes to move closer together, making the overlapping surfaces of the precast concrete modules fit more tightly. Through the cooperation of the vertical bearing mechanism and the fastening frame, the potential energy of the upper load is converted into fastening force, making the connection of the prefabricated concrete structure tighter, reducing the gaps in the contact surface, and providing higher safety assurance for the construction of prefabricated structures. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the hinged concrete module potential energy conversion fastening device in an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure for anchoring steel pipes;

[0021] Figure 3 This is an enlarged structural diagram of the vertical pressure-bearing mechanism;

[0022] In the diagram, the following numbers are used to indicate different components: 1 is the support platform; 2 is the first hinged base; 3 is the first hydraulic support rod; 4 is the second hinged base; 5 is the second hydraulic support rod; 6 is the support base plate; 7 is the connecting thread; 8 is the first hydraulic telescopic arm; 9 is the rigid spring; 10 is the pressure-bearing steel plate; 11 is the connecting hole; 12 is the connecting screw; 13 is the rubber piston; 14 is the L-shaped hydraulic cylinder; 15 is the movable sleeve; 16 is the sliding opening; 17 is the transverse hydraulic telescopic arm; 18 is the thick-walled square steel pipe; 19 is the connecting hole; 20 is the first pin; 21 is the hinge joint; 22 is the second pin; 23 is the hinged disc; 24 is the slide rail; 25 is the second hydraulic telescopic arm; 26 is the anchoring steel pipe; 27 is the screw hole; and 28 is the bolt. Detailed Implementation

[0023] The present invention aims to provide a potential energy conversion fastening device based on articulated concrete modules, which solves the problems of poor overall integrity, uneven stress distribution, and unstable failure caused by loose and weak connections of articulated concrete modules. The core idea is as follows: the designed fastening device mainly consists of two parts: a vertical pressure-bearing mechanism and a fastening frame. The vertical pressure-bearing mechanism includes a support platform, a support structure, a support base plate, a pressure-bearing steel plate, an elastic structure, and an L-shaped hydraulic cylinder. The support platform is connected to the support base plate through the support structure, and the upper end of the support base plate is connected to the pressure-bearing steel plate through the elastic structure. The support platform is provided with through holes of a size adapted to the reserved holes on the precast concrete module. The lower end of the support base plate is provided with connecting threads. The L-shaped hydraulic cylinder is connected to a first hydraulic telescopic arm at its upper end. In application, the hydraulic rod in the first hydraulic telescopic arm passes through the reserved holes of the precast concrete module and the through holes on the support platform, and then screws into the support base plate through the connecting threads. The L-shaped hydraulic cylinder is connected to a horizontal hydraulic telescopic arm at its lower end, and the outer end of the horizontal hydraulic telescopic arm is connected to the fastening frame. In application, the fastening frame is anchored below the precast concrete module. Based on this structure, the gravitational potential energy of the load on the pressure plate is transferred to the supporting base plate through the elastic structure, and then to the first hydraulic telescopic arm. This causes the liquid in the L-shaped hydraulic cylinder to be vertically squeezed, generating a horizontal thrust that drives the lateral hydraulic telescopic arm to extend, thereby driving the movement of the fastening frame, and then driving the movement of the precast concrete module anchored to the fastening frame. This converts the gravitational potential energy into fastening force, making the precast concrete structure more tightly connected and reducing the gaps at the contact surface.

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Example:

[0026] Please see Figures 1-3 The hinged concrete module potential energy conversion fastening device in this embodiment includes fasteners, which include a vertical pressure-bearing mechanism and a fastening frame; the vertical pressure-bearing mechanism includes a support platform 1, a support structure, a support base plate 6, a pressure-bearing steel plate 10, an elastic structure and an L-shaped hydraulic cylinder 14.

[0027] The support platform 1 is connected to the support base plate 6 through a support structure. The support structure includes two symmetrically distributed sets of support bodies. Each set of support bodies includes two first hinge bases 2 set on the upper end face of the support platform 1, a second hinge base 4 set on the lower end face of the support base plate 6, a first hydraulic support rod 3, and a second hydraulic support rod 5. The upper parts of the first hydraulic support rod 3 and the second hydraulic support rod 5 are both connected to the second hinge base 4. The lower parts of the first hydraulic support rod 3 and the second hydraulic support rod 5 are respectively connected to the two first hinge bases 2, thereby forming a triangular stable support system.

[0028] The upper end face of the supporting base plate 6 is connected to the pressure-bearing steel plate 10 through an elastic structure; the elastic structure can be made of multiple rigid springs 9. When the pressure-bearing steel plate 10 contacts the upper load, the compression of the rigid springs 9 allows the pressure-bearing steel plate 10 to adapt to various contact angles and transfers potential energy to the supporting base plate 6.

[0029] The support platform 1 is provided with a through hole of a size that matches the reserved hole on the precast concrete module. The lower end face of the support base plate 6 is provided with a connecting thread 7. The L-shaped hydraulic cylinder 14 is connected to a first hydraulic telescopic arm 8 at its upper end. In application, the hydraulic rod in the first hydraulic telescopic arm 8 passes through the reserved hole of the precast concrete module and the through hole on the support platform 1, and then screws into the support base plate 6 through the connecting thread 7 on the support base plate 6, thereby realizing the connection with the support base plate 6, so that when the support base plate 6 obtains potential energy, it can be transferred to the first hydraulic telescopic arm 8.

[0030] The support platform 1 is also provided with multiple connection holes 11 along its inner ring. The first hydraulic telescopic arm 8 is provided with a flange. In application, after aligning the hole on the flange of the first hydraulic telescopic arm 8 with the connection hole 11, the connecting screw 12 is inserted into the connection hole 11 and then tightened with a nut, thereby realizing the connection with the support platform 1. The first hydraulic telescopic arm 8 is provided with a rubber piston 13, which is used to seal the reserved hole of the precast concrete module to prevent cement mortar from flowing in and causing difficulty in pulling it out.

[0031] The L-shaped hydraulic cylinder 14 is connected to a horizontal hydraulic telescopic arm 17 at its lower end. The horizontal hydraulic telescopic arm 17 is extended by vertically squeezing the liquid in the cylinder to form a horizontal thrust, and vice versa. The outer end of the horizontal hydraulic telescopic arm 17 is connected to a fastening frame. In application, the fastening frame is anchored below the precast concrete module, so that the movement of the horizontal hydraulic telescopic arm 17 drives the movement of the fastening frame, and in turn drives the movement of the precast concrete module. The outer side of the horizontal hydraulic telescopic arm 17 is wrapped with a movable sleeve 15. The upper end of the movable sleeve 15 is provided with a sliding opening 16 to meet the lateral displacement requirements of the first hydraulic telescopic arm 8, so that the first hydraulic telescopic arm 8 can better absorb the pressure from the load on the bearing steel plate 10, thereby squeezing the liquid in the cylinder to form a horizontal thrust.

[0032] The fastening frame includes a thick-walled square steel pipe 18 and a second hydraulic telescopic arm 25. The front end of the thick-walled square steel pipe 18 is inserted into a pre-drilled connection hole 19 on the transverse hydraulic telescopic arm 17. One end of the thick-walled square steel pipe 18 is hinged to the transverse hydraulic telescopic arm 17 by screwing in a first pin 20. A slide rail 24 is provided above the thick-walled square steel pipe 18 on the side of the transverse hydraulic telescopic arm 17. A slot is provided at the lower part of the second hydraulic telescopic arm 25. The slide rail 24 fits into the slot, allowing the second hydraulic telescopic arm 25 to move along the slide rail 24. An anchoring steel pipe 26 is welded above the second hydraulic telescopic arm 25. In application, anchoring bolts 28 are passed through the pre-drilled screw holes 27 of the anchoring steel pipe 26 to anchor the precast concrete module to the bottom surface.

[0033] It is understood that the fastening device in this invention may contain only one fastener, which is placed at the center of the precast concrete module during application. However, in order to make the fastening force more evenly applied to the bonding surface of the concrete module, the fastening device may include two fasteners applied to the same precast concrete module. During application, the two fasteners are symmetrically placed at two positions on the precast concrete module. Based on this, a hinge joint 21 can be provided at the other end of the thick-walled square steel pipe 18. The thick-walled square steel pipe 18 in the two fasteners is connected by screwing a second pin 22 into the hinge joint 21.

[0034] With further improvements, a hinged disc 23 is provided in the middle of the thick-walled square steel tube 18. The thickness of the hinged disc 23 is half the height of the thick-walled square steel tube 18. When applied to the assembly construction of concrete modules, two intersection points can be formed in the fastening devices of the front and rear precast concrete modules. At the intersection points, the hinged disc 23 is stacked to form a whole. Thus, by moving the fastening frame applied to two adjacent precast concrete modules, the two precast concrete modules can be driven to move towards each other, making the overlapping surfaces of the precast concrete modules fit more tightly.

[0035] The working principle of the above-mentioned fastening device is as follows: In use, the first hydraulic telescopic arm 8 is first passed through the pre-drilled holes in the precast concrete module, and then the support platform 1 and support base plate 6 are anchored on top. Simultaneously, the second hydraulic telescopic arm 25 is nested on the thick-walled square steel pipe 18, and the anchoring steel pipe 26 is secured to the bottom of the precast concrete module using bolts 28. When the anchoring steel pipes 26 come together, the joints of the precast concrete modules overlap more tightly, making the complete concrete structure more robust and secure. This structure is easy and quick to install; the main structure can be pre-assembled, and bolts are used to fix it to the concrete module after passing through the holes, improving installation efficiency. When the bearing steel plate 10 contacts the upper load-bearing structure… At the same time, the compression of the rigid spring 9 allows the pressure-bearing steel plate 10 to adapt to various fitting angles and transfers potential energy to the first hydraulic telescopic arm 8. The horizontal thrust generated by the liquid in the vertical compression cylinder drives the horizontal hydraulic telescopic arm 17 to extend, and vice versa. The good pressure-bearing capacity of concrete provides better vertical support. The movement of the fastening frame causes the anchoring steel pipes 26 to move closer together, making the overlapping surfaces of the precast concrete modules fit more tightly. The device, through the cooperation of the vertical hydraulic system and the fastening frame, converts the potential energy of the upper load into fastening force, making the connection of the prefabricated concrete structure tighter, reducing the gaps in the contact surface, and providing higher safety assurance for the construction of prefabricated structures.

[0036] Finally, it should be noted that the above embodiments are merely preferred embodiments and are not intended to limit the present invention. It should be pointed out that those skilled in the art can make various modifications, equivalent substitutions, and improvements without departing from the spirit and scope of the claims, and all such modifications, substitutions, and improvements should be included within the scope of protection of the present invention.

Claims

1. A fastening device for potential energy conversion based on articulated concrete modules, comprising fasteners, characterized in that, The fastener includes a vertical pressure-bearing mechanism and a fastening frame; the vertical pressure-bearing mechanism includes a support platform (1), a support structure, a support base plate (6), a pressure-bearing steel plate (10), an elastic structure, and an L-shaped hydraulic cylinder (14). The support platform (1) is connected to the support base plate (6) through a support structure. The upper end of the support base plate (6) is connected to the pressure-bearing steel plate (10) through an elastic structure. The support platform (1) is provided with a through hole of a size that matches the reserved hole on the precast concrete module. The lower end of the support base plate (6) is provided with a connecting thread (7). The L-shaped hydraulic cylinder (14) is connected to a first hydraulic telescopic arm (8) at its upper end. In application, the hydraulic rod in the first hydraulic telescopic arm (8) passes through the reserved hole of the precast concrete module and the through hole on the support platform (1) and is screwed into the support base plate (6) through the connecting thread (7) on the support base plate (6). The L-shaped hydraulic cylinder (14) is connected to a transverse hydraulic telescopic arm (17) at its lower end. The outer end of the transverse hydraulic telescopic arm (17) is connected to a fastening frame. In application, the fastening frame is anchored below the precast concrete module.

2. The potential energy conversion fastening device based on articulated concrete modules as described in claim 1, characterized in that, The support platform (1) is also provided with multiple connecting holes (11) along the inner ring. The first hydraulic telescopic arm (8) is provided with a flange. When in use, after the hole on the flange of the first hydraulic telescopic arm (8) is aligned with the connecting hole (11), the connecting screw (12) is inserted into the connecting hole (11) and then tightened with a nut.

3. The potential energy conversion fastening device based on articulated concrete modules as described in claim 1, characterized in that, The support structure includes two symmetrically distributed sets of support bodies. Each set of support bodies includes two first hinge bases (2) set on the upper end face of the support platform (1), a second hinge base (4) set on the lower end face of the support base plate (6), a first hydraulic support rod (3), and a second hydraulic support rod (5). The upper parts of the first hydraulic support rod (3) and the second hydraulic support rod (5) are both connected to the second hinge base (4). The lower parts of the first hydraulic support rod (3) and the second hydraulic support rod (5) are respectively connected to the two first hinge bases (2).

4. The potential energy conversion fastening device based on articulated concrete modules as described in claim 1, characterized in that, The elastic structure includes multiple rigid springs (9).

5. The potential energy conversion fastening device based on articulated concrete modules as described in claim 1, characterized in that, The first hydraulic telescopic arm (8) is also equipped with a rubber piston (13) for sealing the holes reserved on the precast concrete module during application.

6. The potential energy conversion fastening device based on articulated concrete modules as described in claim 1, characterized in that, The outer side of the lateral hydraulic telescopic arm (17) is covered by a movable sleeve (15), and the upper end of the movable sleeve (15) is provided with a sliding opening (16), so that the first hydraulic telescopic arm (8) can be displaced laterally along the sliding opening (16).

7. A potential energy conversion fastening device based on a hinged concrete module as described in any one of claims 1-6, characterized in that, The fastening frame includes a thick-walled square steel pipe (18) and a second hydraulic telescopic arm (25). The front end of the thick-walled square steel pipe (18) is inserted into the pre-reserved connection hole (19) on the transverse hydraulic telescopic arm (17). One end of the thick-walled square steel pipe (18) is hinged to the transverse hydraulic telescopic arm (17) by screwing in the first pin (20). The thick-walled square steel pipe (18) is provided with a slide rail (24) on the upper side of the transverse hydraulic telescopic arm (17). The lower part of the second hydraulic telescopic arm (25) is provided with a slot. The slide rail (24) is fitted into the slot, so that the second hydraulic telescopic arm (25) can move along the slide rail (24). An anchoring steel pipe (26) is welded on the upper part of the second hydraulic telescopic arm (25). In application, the anchoring bolt (28) passes through the screw hole (27) reserved in the anchoring steel pipe (26) and is anchored to the bottom surface of the precast concrete module.

8. The potential energy conversion fastening device based on a hinged concrete module as described in claim 7, characterized in that, The device includes two fasteners applied to the same precast concrete module, with a hinge joint (21) provided at the other end of the thick-walled square steel tube (18), and the thick-walled square steel tube (18) in the two fasteners are connected by screwing a second pin (22) into the hinge joint (21).

9. The potential energy conversion fastening device based on a hinged concrete module as described in claim 8, characterized in that, The thick-walled square steel tube (18) is provided with a hinged disc (23) in the middle. The thickness of the hinged disc (23) is half the height of the thick-walled square steel tube (18). The thick-walled square steel tube (18) used in the fastening device of the front and rear precast concrete modules forms two intersection points, which are overlapped by the hinged disc (23) at the intersection points.

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