Splicing clamp for splicing seam of new bridge and old bridge

Abstract

The utility model belongs to the technical field of clamps, and particularly relates to a new and old bridge splicing seam splicing clamp which comprises a new bridge body and an old bridge body, a splicing seam is arranged between the new bridge body and the old bridge body, a containing groove is formed in the top of the new bridge body and the top of the old bridge body, an upper clamping plate is arranged on the inner side of the containing groove, and a lower clamping plate is arranged at the bottom of the new bridge body and the bottom of the old bridge body. Countersunk bolt holes are formed between the tops and the bottoms of the upper clamping plate and the lower clamping plate in a penetrating mode, the tops of the containing grooves are downward, bridge body bolt holes are formed in the bottoms of the new bridge body and the old bridge body in an upward mode, inner hexagon bolts are connected between the countersunk bolt holes and the bridge body bolt holes, and anchoring holes are formed between the tops and the bottoms of the upper clamping plate and the lower clamping plate in a penetrating mode. According to the device, the relative positions of the upper clamping plate and the lower clamping plate can be kept fixed, so that the stability of fixation between the upper clamping plate and the lower clamping plate is improved, and the stability of fixation between a new bridge body and an old bridge body by the upper clamping plate and the lower clamping plate is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of fixtures, and particularly relates to a splicing fixture for the splicing joint of a new and an old bridge. Background Art

[0002] The splicing of a new and an old bridge refers to a bridge design scheme in which the bridge is constructed in stages horizontally, or a new bridge is newly built by splicing and widening on the basis of the original bridge, and finally an integral bridge deck is formed. This splicing method aims to improve the traffic capacity and bearing capacity of the bridge to meet the growing traffic demand. In order to enhance the integrity between the new and the old bridges and reduce the deformation difference, it is necessary to reinforce the splicing joint between the new and the old bridges. Currently, fixtures are mostly arranged on the upper and lower sides of the connection between the new and the old bridges, and bolts such as anchor bolts are used to connect between the upper and lower fixtures to reinforce the new and the old bridges. However, in the prior art, the fixation between the upper and lower sets of fixtures only relies on anchor bolts, and there is a certain deficiency in the fixation stability. Content of the Utility Model

[0003] Aiming at the above problems, the purpose of the utility model is to provide a splicing fixture for the splicing joint of a new and an old bridge, which can keep the relative positions of the upper clamping plate and the lower clamping plate fixed, thereby improving the fixation stability between the upper clamping plate and the lower clamping plate, and enhancing the fixation stability between the upper clamping plate and the lower clamping plate for the new bridge body and the old bridge body.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A splicing fixture for the splicing joint of a new and an old bridge, including a new bridge body and an old bridge body. There is a splicing joint between the new bridge body and the old bridge body. Accommodating grooves are provided at the tops of the new bridge body and the old bridge body. An upper clamping plate is placed inside the accommodating grooves. Lower clamping plates are provided at the bottoms of the new bridge body and the old bridge body. Countersunk bolt holes penetrate through the tops and bottoms of the upper clamping plate and the lower clamping plate. Bridge body bolt holes are opened downward from the top of the accommodating grooves and upward from the bottoms of the new bridge body and the old bridge body. Hexagon socket head cap screws are connected between the countersunk bolt holes and the bridge body bolt holes. Anchor holes penetrate through the tops and bottoms of the upper clamping plate and the lower clamping plate. An anchor screw rod is connected between the anchor hole of the upper clamping plate and the anchor hole of the lower clamping plate. An anchor nut is threadedly connected to the outer side of the anchor screw rod. Anti-loosening fasteners are provided at the bottoms of the upper clamping plate and the tops of the lower clamping plate.

[0005] The beneficial effects of the present utility model are as follows: Use an Allen bolt to fix between the countersunk bolt hole and the bridge body bolt hole. Then, use an anchor screw to pass through the anchor holes on the upper splint and the lower splint, and use anchor nuts to be screwed into and tightened from both ends of the anchor screw to fix the anchor screw, which plays a role in strengthening between the upper splint and the lower splint. Fix the upper splint between the new bridge body and the old bridge body, and between the lower splint and the new bridge body and the old bridge body with Allen bolts, and strengthen between the new bridge body and the old bridge body through the upper splint and the lower splint.

[0006] Due to the provision of the mounting seat, the insertion block, and the insertion slot, the upper anti-disengagement tool and the lower anti-disengagement tool are fixed horizontally by inserting the insertion block into the insertion slot, so that the two anti-disengagement tools cannot move relative to each other in the front-back, left-right directions, thereby maintaining the relative position between the upper splint and the lower splint fixed, and further improving the fixing stability between the upper splint and the lower splint, and enhancing the fixing stability of the upper splint and the lower splint between the new bridge body and the old bridge body.

[0007] Due to the provision of the shock pads, the vibrations transmitted from the new bridge body and the old bridge body to the upper splint and the lower splint can be buffered, reducing the impact of the vibration force on the installation stability of the upper splint and the lower splint.

[0008] For accommodating the anchor nut:

[0009] As a further improvement of the above technical solution: One end of the anchor hole is provided with a nut accommodation hole.

[0010] The beneficial effect of this improvement is that the nut accommodation hole is used to accommodate the anchor nut.

[0011] To improve the fixing stability of the upper splint and the lower splint between the new bridge body and the old bridge body:

[0012] As a further improvement of the above technical solution: The anti-disengagement tool includes mounting seats welded to the bottom of the upper splint and the top of the lower splint. The mounting seats at the ends where the two groups of anti-disengagement tools are close to each other are each provided with an insertion slot and an integrally formed insertion block.

[0013] The beneficial effect of this improvement is that the upper anti-disengagement tool and the lower anti-disengagement tool are fixed horizontally by inserting the insertion block into the insertion slot, so that the two anti-disengagement tools cannot move relative to each other in the front-back, left-right directions, thereby maintaining the relative position between the upper splint and the lower splint fixed, and further improving the fixing stability between the upper splint and the lower splint, and enhancing the fixing stability of the upper splint and the lower splint between the new bridge body and the old bridge body.

[0014] To reduce the impact of the vibration force on the installation stability of the upper splint and the lower splint:

[0015] As a further improvement of the above technical solution: shock pads are provided at the bottom of the upper clamping plate and the top of the lower clamping plate.

[0016] The beneficial effect of this improvement is that, due to the provision of shock pads, the vibrations transmitted from the new bridge body and the old bridge body to the upper clamping plate and the lower clamping plate can be buffered, reducing the impact of the vibration force on the installation stability of the upper clamping plate and the lower clamping plate.

[0017] Parts not involved in this device are the same as those in the prior art or can be implemented using the prior art. Description of the Drawings

[0018] Figure 1 is an axonometric structural schematic diagram of the present utility model;

[0019] Figure 2 is a sectional schematic diagram of the present utility model;

[0020] Figure 3 is an enlarged schematic diagram of part A of the present utility model;

[0021] Figure 4 is a structural schematic diagram when the upper clamping plate and the lower clamping plate of the present utility model are separated;

[0022] Figure 5 is an axonometric structural schematic diagram of one side of the anti - detachment fixture of the present utility model;

[0023] Figure 6 is an axonometric structural schematic diagram of the other side of the anti - detachment fixture of the present utility model;

[0024] In the figure: 1, new bridge body; 2, old bridge body; 3, splicing seam; 4, upper clamping plate; 5, lower clamping plate; 6, receiving groove; 7, countersunk head bolt hole; 8, bridge body bolt hole; 9, nut receiving hole; 10, anchoring hole; 11, anchoring screw; 12, anchoring nut; 13, anti - detachment fixture; 14, mounting seat; 15, insertion block; 16, insertion slot; 17, hexagon socket head bolt; 18, shock pad. Detailed Embodiment

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0026] As shown in Figure 1-6As shown in the figure, a splicing fixture for the joint seam between a new bridge and an old bridge includes a new bridge body 1 and an old bridge body 2. There is a joint seam 3 between the new bridge body 1 and the old bridge body 2. A receiving groove 6 is provided at the top of the new bridge body 1 and the old bridge body 2. An upper clamping plate 4 is placed inside the receiving groove 6. A lower clamping plate 5 is provided at the bottom of the new bridge body 1 and the old bridge body 2. Countersunk bolt holes 7 are provided through the top and bottom of the upper clamping plate 4 and the lower clamping plate 5. Bridge body bolt holes 8 are drilled downward from the top of the receiving groove 6 and upward from the bottom of the new bridge body 1 and the old bridge body 2. An internal hexagonal bolt 17 is connected between the countersunk bolt holes 7 and the bridge body bolt holes 8. Anchor holes 10 are provided through the top and bottom of the upper clamping plate 4 and the lower clamping plate 5. An anchor screw 11 is connected between the anchor hole 10 of the upper clamping plate 4 and the anchor hole 10 of the lower clamping plate 5. An anchor nut 12 is threadedly connected to the outside of the anchor screw 11. Anti-release fasteners 13 are provided at the bottom of the upper clamping plate 4 and the top of the lower clamping plate 5.

[0027] Use the internal hexagonal bolt 17 to fix between the countersunk bolt holes 7 and the bridge body bolt holes 8. Then, pass the anchor screw 11 through the anchor holes 10 on the upper clamping plate 4 and the lower clamping plate 5, and use the anchor nut 12 to screw in and tighten from both ends of the anchor screw 11 to fix the anchor screw 11, which plays a role in strengthening between the upper clamping plate 4 and the lower clamping plate 5. Fix between the upper clamping plate 4 and the new bridge body 1, the old bridge body 2, and between the lower clamping plate 5 and the new bridge body 1, the old bridge body 2 through the internal hexagonal bolt 17, and strengthen between the new bridge body 1 and the old bridge body 2 through the upper clamping plate 4 and the lower clamping plate 5.

[0028] Due to the provision of the mounting seat 14, the insertion block 15, and the insertion slot 16, the upper anti-release fastener 13 and the lower anti-release fastener 13 are fixed horizontally by inserting the insertion block 15 into the insertion slot 16, so that the two anti-release fasteners 13 cannot move relative to each other in the front-back, left-right directions, thus maintaining the relative position between the upper clamping plate 4 and the lower clamping plate 5 fixed, and further improving the fixing stability between the upper clamping plate 4 and the lower clamping plate 5, and enhancing the fixing stability of the upper clamping plate 4 and the lower clamping plate 5 between the new bridge body 1 and the old bridge body 2.

[0029] Due to the provision of the shock-absorbing pad 18, the vibration transmitted from the new bridge body 1 and the old bridge body 2 to the upper clamping plate 4 and the lower clamping plate 5 can be buffered, reducing the influence of the vibration force on the installation stability of the upper clamping plate 4 and the lower clamping plate 5.

[0030] One end of the anchor hole 10 is provided with a nut receiving hole 9.

[0031] The nut receiving hole 9 is used to receive the anchor nut 12.

[0032] The anti-disengagement fixture 13 includes a mounting seat 14 welded to the bottom of the upper clamping plate 4 and the top of the lower clamping plate 5. At one end where the two groups of anti-disengagement fixtures 13 are close to each other, the mounting seat 14 is provided with a slot 16 and an integrally formed insertion block 15.

[0033] The upper anti-disengagement fixture 13 and the lower anti-disengagement fixture 13 are horizontally fixed by inserting the insertion block 15 into the slot 16, so that the two anti-disengagement fixtures 13 cannot move relative to each other in the front-back, left-right directions, thereby maintaining the relative position between the upper clamping plate 4 and the lower clamping plate 5 fixed, and further improving the fixing stability between the upper clamping plate 4 and the lower clamping plate 5, and enhancing the fixing stability between the upper clamping plate 4, the lower clamping plate 5 and the new bridge body 1 and the old bridge body 2.

[0034] Shock pads 18 are provided on the bottom of the upper clamping plate 4 and the top of the lower clamping plate 5.

[0035] Due to the provision of the shock pads 18, the vibration transmitted from the new bridge body 1 and the old bridge body 2 to the upper clamping plate 4 and the lower clamping plate 5 can be buffered, reducing the influence of the vibration force on the installation stability of the upper clamping plate 4 and the lower clamping plate 5.

[0036] Working principle and usage process of the utility model: When installing this device, install the upper clamping plate 4 in the receiving groove 6 at the top of the new bridge bridge body 1 and the old bridge bridge body 2, and set the lower clamping plate 5 at the bottom of the new bridge bridge body 1 and the old bridge bridge body 2, so that the countersunk bolt holes 7 on the upper clamping plate 4 and the lower clamping plate 5 are aligned with the bridge body bolt holes 8 on the new bridge bridge body 1 and the old bridge bridge body 2. At the same time, insert the insertion block 15 and the slot 16 of the anti-disengagement device 13 at the bottom of the upper clamping plate 4 into the slot 16 and the insertion block 15 of the anti-disengagement device 13 at the top of the lower clamping plate 5 respectively. Use the hexagon socket head cap screw 17 to fix between the countersunk bolt hole 7 and the bridge body bolt hole 8. Subsequently, pass the anchoring screw rod 11 through the anchoring holes 10 on the upper clamping plate 4 and the lower clamping plate 5, and use the anchoring nuts 12 to screw in and tighten from both ends of the anchoring screw rod 11 to fix the anchoring screw rod 11, which plays a role in strengthening between the upper clamping plate 4 and the lower clamping plate 5. Fix between the upper clamping plate 4 and the new bridge bridge body 1, the old bridge bridge body 2 and between the lower clamping plate 5 and the new bridge bridge body 1, the old bridge bridge body 2 through the hexagon socket head cap screw 17, and strengthen between the new bridge bridge body 1 and the old bridge bridge body 2 through the upper clamping plate 4 and the lower clamping plate 5. At the same time, due to the setting of the mounting seat 14, the insertion block 15 and the slot 16, the upper anti-disengagement device 13 and the lower anti-disengagement device 13 are fixed in the horizontal direction through the insertion of the insertion block 15 and the slot 16, so that the two anti-disengagement devices 13 cannot move relative to each other in the front-back, left-right directions, thereby maintaining the relative position between the upper clamping plate 4 and the lower clamping plate 5 fixed, and further improving the stability of the fixation between the upper clamping plate 4 and the lower clamping plate 5, and improving the fixation stability of the upper clamping plate 4 and the lower clamping plate 5 between the new bridge bridge body 1 and the old bridge bridge body 2. At the same time, due to the setting of the shock pad 18, it can buffer the vibration transmitted from the new bridge bridge body 1 and the old bridge bridge body 2 to the upper clamping plate 4 and the lower clamping plate 5, and reduce the influence of the vibration force on the installation stability of the upper clamping plate 4 and the lower clamping plate 5.

[0037] It should be noted that in this article, the terms "including", "comprising" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0038] In this article, specific examples are used to elaborate on the principle and implementation mode of the present utility model. The description of the above examples is only used to help understand the method and its core idea of the present utility model. The above is only the preferred implementation mode of the present utility model. It should be noted that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements, retouches or changes can be made, or the above technical features can be combined in an appropriate way; these improvements, retouches, changes or combinations, or directly applying the concept and technical solution of the utility model to other occasions without improvement, shall all be regarded as the protection scope of the present utility model.

Claims

1. A new and old bridge joint splicing fixture, characterized by: The invention comprises a new bridge body (1) and an old bridge body (2), wherein a joint seam (3) is provided between the new bridge body (1) and the old bridge body (2), a receiving groove (6) is provided at the top of the new bridge body (1) and the old bridge body (2), an upper clamping plate (4) is placed inside the receiving groove (6), a lower clamping plate (5) is provided at the bottom of the new bridge body (1) and the old bridge body (2), countersunk bolt holes (7) are provided between the top and bottom of the upper clamping plate (4) and the lower clamping plate (5), the top of the receiving groove (6) is downward, and the new bridge body (1) and the old bridge body (2) are connected. 2) is provided with a bridge body bolt hole (8) at the bottom thereof, a hexagon socket bolt (17) is connected between the countersunk bolt hole (7) and the bridge body bolt hole (8), an anchor hole (10) is provided between the top and bottom of the upper clamping plate (4) and the lower clamping plate (5), an anchor screw (11) is connected between the anchor hole (10) of the upper clamping plate (4) and the anchor hole (10) of the lower clamping plate (5), an anchor nut (12) is threadedly connected to the outer side of the anchor screw (11), and anti-dropping buckles (13) are provided at the bottom of the upper clamping plate (4) and the top of the lower clamping plate (5).

2. A new bridge joint splicing fixture according to claim 1, characterized in that: A nut receiving hole (9) is provided at one end of the anchoring hole (10).

3. The new-old bridge joint splicing fixture according to claim 1 is characterized by: The anti-drop buckle (13) comprises a mounting seat (14) welded to the bottom of the upper clamping plate (4) and the top of the lower clamping plate (5); the mounting seat (14) is located at one end of the two sets of anti-drop buckles (13) close to each other and is provided with a slot (16) and an integrally formed plug block (15).

4. The new-old bridge joint splicing fixture according to claim 1 is characterized by: The bottom of the upper clamping plate (4) and the top of the lower clamping plate (5) are both provided with shock-absorbing pads (18).

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