Temporary connecting device capable of conveniently adjusting pre-deviation

Abstract

The utility model provides a temporary connecting device convenient to adjust pre-deviation, which relates to the technical field of pre-deviation temporary connection and comprises an upper support plate component, a spherical crown lining plate component is arranged on one side of the upper support plate component, and a lower support plate component is arranged on one side, far away from the upper support plate component, of the spherical crown lining plate component. An anchor bolt is inserted into the surface of the lower support plate assembly in a threaded mode, a temporary connecting plate is inserted into the surface of the anchor bolt in a threaded mode, an adjusting base plate is arranged on the side, away from the anchor bolt, of the temporary connecting plate, an adjusting bolt is inserted into the adjusting base plate in a threaded mode, and an adjusting nut is inserted into the surface of the adjusting bolt in a threaded mode. Limiting of the temporary connecting device in the vertical direction and the bridge direction is limited through different parts, when the pre-deviation amount is adjusted, only the limiting device in the bridge direction is loosened, the pre-deviation amount is well adjusted, and then the limiting device is tightened, and the adjusting mode is simple, convenient and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of pre-bias temporary connection, in particular to a temporary connection device which is convenient for adjusting the pre-bias. Background Art

[0002] In the bridge structure, the bearing is an important component connecting the superstructure and the substructure of the bridge. It can reliably transmit the reaction force and deformation (displacement and rotation) of the superstructure of the bridge to the substructure of the bridge, so that the actual stress conditions of the structure are consistent with the calculated theoretical diagram. In order to ensure that the bearing does not displace or rotate during transportation and installation, it is necessary to use a temporary connection device to connect the bearing as a whole.

[0003] There is a certain temperature difference between the temperature during bridge construction and the average annual temperature of the bridge location, and the bridge will produce elastic compression deformation after prestressing. Therefore, when the bridge supports are installed, there will be an offset different from the calculated theoretical diagram. To deal with this situation, the offset is generally calculated in advance. Because the general temporary connection device does not have the function of adjusting the support offset, the manufacturer will specially design and process the support according to the offset to facilitate actual use on site.

[0004] However, when actually installing the bearings, there may be a situation where the bearing pre-bias needs to be adjusted due to seasonal and temperature changes during construction. To ensure the accuracy of the bearings, they generally need to be returned to the factory for readjustment, but this will affect the construction period and incur costs, which may lead to problems that affect the effectiveness of the bearings. Utility Model Content

[0005] The utility model is to solve the problem that when actually installing the support, the pre-bias amount of the support needs to be adjusted due to seasonal and temperature changes during construction. To ensure the accuracy of the support, it is generally necessary to return the support to the factory for readjustment, which will affect the construction period and incur costs, thereby affecting the use effect of the support. A temporary connection device that is convenient for adjusting the pre-bias amount is proposed.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a temporary connection device that is convenient for adjusting the pre-bias, comprising an upper support plate assembly, a spherical crown lining assembly is provided on one side of the upper support plate assembly, a lower support plate assembly is provided on the side of the spherical crown lining assembly away from the upper support plate assembly, an anchor bolt is threadedly inserted into the surface of the lower support plate assembly, a temporary connection plate is threadedly inserted into the surface of the anchor bolt, an adjustment pad is provided on the side of the temporary connection plate away from the anchor bolt, an adjustment bolt is threadedly inserted into the internal thread of the adjustment pad, an adjustment nut is threadedly inserted into the surface of the adjustment bolt, and one side of the adjustment bolt is threadedly inserted inside the upper support plate assembly.

[0007] The effect achieved by the above components is: the temporary connection plate is fixed to the lower support plate assembly by anchor bolts, the upper surface of the temporary connection plate is in contact with the lower surface of the adjustment pad, and when the pre-bias needs to be adjusted, the relative position of the two is adjusted, and then the two are locked by adjusting nuts and adjusting bolts without displacement, and fixed to the upper support plate assembly.

[0008] Preferably, the upper surface of the temporary connection plate is provided with a plurality of raised edges, and the lower surface of the adjustment pad is provided with a plurality of raised edges, and the plurality of raised edges on the upper surface of the temporary connection plate and the plurality of raised edges on the lower surface of the adjustment pad are engaged with each other.

[0009] The effect achieved by the above components is: through the raised edges on the upper surface of the temporary connection plate and the raised edges on the lower surface of the adjustment pad, the temporary connection plate and the adjustment pad are more tightly combined, so that there will be no positional offset between the two, thereby improving the use effect of the temporary connection plate and the adjustment pad.

[0010] Preferably, the temporary connection plate is L-shaped, and an oblong through hole for adjusting the pre-bias is provided at the horizontal plate of the L-shaped temporary connection plate.

[0011] Preferably, the temporary connection plate is Z-shaped, the lower horizontal plate of the Z-shaped temporary connection plate is provided with a circular through hole, and the upper horizontal plate of the Z-shaped temporary connection plate is provided with an oblong through hole for adjusting the pre-bias.

[0012] Preferably, the adjusting pad is in the shape of a cuboid, an oblong through hole is provided in the middle of the adjusting pad, and the size of the oblong through hole on the surface of the adjusting pad is adapted to the size of the adjusting bolt.

[0013] The effect achieved by the above components is that the adjusting bolt can pass through the adjusting pad and contact the upper support plate assembly through the long round through hole in the middle of the adjusting pad.

[0014] Preferably, the length of the oblong through hole on the surface of the adjusting pad is the length of a raised sawtooth.

[0015] Preferably, the adjusting nut is a locking nut.

[0016] The effect achieved by the above components is: by using the anti-loosening nut, the adjusting bolt can be prevented from retreating, thereby achieving the anti-loosening effect.

[0017] In summary, the beneficial effects of the utility model are:

[0018] The utility model limits the vertical and longitudinal limits of the temporary connection device through different components. When adjusting the pre-bias, only the longitudinal limit is loosened, and the limit device is tightened after the pre-bias is adjusted. The adjustment method is simple and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the anchor bolt of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the Z-shaped temporary connection plate of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the circular through hole and the oblong through hole on the temporary connection plate of the utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the adjusting pad of the utility model;

[0024] Figure 6 This is a schematic diagram of the structure of the adjusting pad of the utility model when viewed from below;

[0025] Figure 7 This is a structural schematic diagram of the utility model where the adjusting pad is adjusted to the right;

[0026] Figure 8 This is a structural schematic diagram of the utility model where the adjusting pad is adjusted to the left;

[0027] Fig. 9 This is a structural schematic diagram of the L-shaped temporary connecting plate of the utility model;

[0028] Fig.10 It is a structural schematic diagram of the oblong through hole on the L-shaped temporary connection plate of the utility model.

[0029] Legend: 1. Upper support plate assembly; 2. Ball crown lining assembly; 3. Lower support plate assembly; 401. Anchor bolt; 402. Temporary connection plate; 403. Adjustment pad; 404. Adjustment nut; 405. Adjustment bolt. DETAILED DESCRIPTION

[0030] Reference Figure 1-10As shown, the present embodiment discloses a temporary connection device which is convenient for adjusting the pre-bias, comprising an upper support plate assembly 1, a spherical cap lining assembly 2 is provided on one side of the upper support plate assembly 1, a lower support plate assembly 3 is provided on the side of the spherical cap lining assembly 2 away from the upper support plate assembly 1, an anchor bolt 401 is threadedly inserted into the surface of the lower support plate assembly 3, a temporary connection plate 402 is threadedly inserted into the surface of the anchor bolt 401, an adjustment pad 403 is provided on the side of the temporary connection plate 402 away from the anchor bolt 401, an adjustment bolt 405 is threadedly inserted into the internal thread of the adjustment pad 403, an adjustment nut 404 is threadedly inserted into the surface of the adjustment bolt 405, and one side of the adjustment bolt 405 is threadedly inserted into the interior of the upper support plate assembly 1. The temporary connecting plate 402 is fixed to the lower support plate assembly 3 by the anchor bolts 401. The upper surface of the temporary connecting plate 402 contacts the lower surface of the adjustment pad 403. When the pre-bias needs to be adjusted, the relative positions of the two are adjusted. Then, the two are locked by adjusting nuts 404 and adjusting bolts 405 so that they do not move and are fixed to the upper support plate assembly 1.

[0031] Reference Figure 3-Figure 6 As shown, this embodiment discloses that the upper surface of the temporary connection plate 402 is provided with a plurality of raised edges, and the lower surface of the adjustment pad 403 is provided with a plurality of raised edges, and the plurality of raised edges on the upper surface of the temporary connection plate 402 and the plurality of raised edges on the lower surface of the adjustment pad 403 are engaged with each other. By using the raised edges on the upper surface of the temporary connection plate 402 and the raised edges on the lower surface of the adjustment pad 403, the temporary connection plate 402 and the adjustment pad 403 are more closely combined, so that there is no positional offset between the two, thereby improving the use effect of the temporary connection plate 402 and the adjustment pad 403.

[0032] Reference Fig. 9 and Fig.10 As shown, this embodiment discloses that the temporary connection plate 402 is L-shaped, and an oblong through hole for adjusting the pre-bias is provided on the horizontal plate of the L-shaped temporary connection plate 402 .

[0033] Reference Figure 3 and Figure 4 As shown, this embodiment discloses that the temporary connection plate 402 is Z-shaped, the lower horizontal plate of the Z-shaped temporary connection plate 402 is provided with a circular through hole, and the upper horizontal plate of the Z-shaped temporary connection plate 402 is provided with an oblong through hole for adjusting the pre-bias.

[0034] Reference Figure 5 and Figure 6 As shown, this embodiment discloses that the adjustment pad 403 is in the shape of a rectangular parallelepiped, and an oblong through hole is provided in the middle of the adjustment pad 403. The size of the oblong through hole on the surface of the adjustment pad 403 matches the size of the adjustment bolt 405. Through the oblong through hole in the middle of the adjustment pad 403, the adjustment bolt 405 can pass through the adjustment pad 403 and contact the upper support plate assembly 1.

[0035] Reference Figure 5 and Figure 6 As shown, this embodiment discloses that the length of the oblong through hole on the surface of the adjustment pad 403 is the length of a raised sawtooth.

[0036] Reference Figure 7 and Figure 8 As shown, this embodiment discloses that the adjusting nut 404 is a locking nut. By using the locking nut, the adjusting bolt 405 can be prevented from retreating, thereby achieving the effect of locking.

[0037] Working principle: During the first installation, first connect and fix the temporary connection plates 402 at the four corners of the lower support plate assembly 3 to the lower support plate through the anchor bolts 401, and then pass the adjustment bolts 405 through the temporary connection plates 402, the adjustment pads 403, and the adjustment nuts 404 to connect with the upper support plate assembly 1. After the parallelism and pre-bias adjustment of the upper and lower support plates are completed, tighten the adjustment bolts 405 and lock the adjustment nuts 404. When adjusting the pre-bias, loosen the adjustment nuts 404, slightly loosen the adjustment bolts 405, and apply external force to the upper support plate assembly 1 in the pre-bias direction. After the required pre-bias is reached, check the parallelism of the upper and lower support plates of the upper support plate assembly and the lower support plate assembly, and then lock the adjustment bolts 405 and the adjustment nuts 404.

Claims

1. A temporary connection device for facilitating adjustment of pre-bias, comprising an upper support plate assembly (1), characterized in that: A spherical cap lining assembly (2) is provided on one side of the upper support plate assembly (1), and a lower support plate assembly (3) is provided on the side of the spherical cap lining assembly (2) away from the upper support plate assembly (1); an anchor bolt (401) is threadedly inserted into the surface of the lower support plate assembly (3), and a temporary connecting plate (402) is threadedly inserted into the surface of the anchor bolt (401); an adjusting pad (403) is provided on the side of the temporary connecting plate (402) away from the anchor bolt (401); an adjusting bolt (405) is threadedly inserted into the internal thread of the adjusting pad (403), and an adjusting nut (404) is threadedly inserted into the surface of the adjusting bolt (405); one side of the adjusting bolt (405) is threadedly inserted into the interior of the upper support plate assembly (1).

2. A temporary connection device for facilitating adjustment of pre-bias according to claim 1, characterized in that: The upper surface of the temporary connection plate (402) is provided with a plurality of raised edges, and the lower surface of the adjustment pad (403) is provided with a plurality of raised edges. The plurality of raised edges on the upper surface of the temporary connection plate (402) and the plurality of raised edges on the lower surface of the adjustment pad (403) are engaged with each other.

3. A temporary connection device for facilitating adjustment of pre-bias according to claim 1, characterized in that: The temporary connection plate (402) is L-shaped, and an oblong through hole for adjusting the pre-bias is provided on the horizontal plate of the L-shaped temporary connection plate (402).

4. A temporary connection device for facilitating adjustment of pre-bias according to claim 1, characterized in that: The temporary connection plate (402) is Z-shaped, the lower horizontal plate of the Z-shaped temporary connection plate (402) is provided with a circular through hole, and the upper horizontal plate of the Z-shaped temporary connection plate (402) is provided with an oblong through hole for adjusting the pre-bias.

5. A temporary connection device for facilitating adjustment of pre-bias according to claim 4, characterized in that: The adjusting pad (403) is in the shape of a rectangular parallelepiped, and an oblong through hole is provided in the middle of the adjusting pad (403). The size of the oblong through hole on the surface of the adjusting pad (403) is matched with the size of the adjusting bolt (405).

6. A temporary connection device for facilitating adjustment of pre-bias according to claim 5, characterized in that: The length of the oblong through hole on the surface of the adjusting pad (403) is the length of a raised sawtooth.

7. A temporary connection device for facilitating adjustment of pre-bias according to claim 6, characterized in that: The adjusting nut (404) is a locking nut.

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