Plate unit U-shaped rib bolting eccentric synchronous axial force sleeve combination device

Abstract

The utility model relates to a plate unit U-shaped rib bolted eccentric synchronous axial force sleeve combination device, bolt hole groups are arranged on two side walls on a plate unit U-shaped rib close to the end part, and the plate unit U-shaped rib bolted eccentric synchronous axial force sleeve combination device is characterized by comprising an eccentric synchronous axial force knot, an axial adjusting key and a bolt sleeve, according to the utility model, the sleeve combination used for assisting in mounting the bolt is arranged in the narrow space of the U-shaped rib of the plate unit, and the side surface of the U-shaped rib is in the included angle shape, so that the hinged sleeve combination can be used for fixing one end of the bolt, and the bolts on the two sides do not rotate relatively in the process of tightening the nut; the screwing operation of the bolts is completed by simultaneously pre-tightening and finally screwing the symmetrical bolts and nuts, so that the bolt screwing operation in a narrow space in the U-shaped rib is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, and in particular to a plate unit U-shaped rib bolted eccentric synchronous axial force sleeve combination device. Background Technology

[0002] The U-shaped rib structure of the segmental bridge deck of the steel bridge is installed on the back of the bridge deck. The two sides of the U-shaped rib structure generally have several bolt hole groups for bolt installation. However, there is an angle between the two sides. Therefore, the axial direction of the bolt hole groups on the two sides of the U-shaped rib structure has a certain angle. Moreover, the space between the two sides of the U-shaped rib structure is not convenient for bolting bolts on the U-shaped rib. Therefore, a tightening tool is needed to improve the tightening operation of the bolt hole groups on the side of the U-shaped rib structure. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a combination device for bolting U-shaped ribs to eccentric synchronous axial force sleeves on plate units, which can solve the problem of inconvenience in installing bolts on U-shaped ribs on general bridge plate units.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a plate unit U-shaped rib bolted eccentric synchronous axial force sleeve combination device, wherein bolt holes are provided on both side walls near the end of the plate unit U-shaped rib, and its innovation is: including eccentric synchronous axial force joint, axial adjustment key and bolt sleeve.

[0005] The eccentric synchronous axial force knot has a pair, the eccentric synchronous axial force knot is in the shape of a cuboid, one end is closed, and the other end has a connecting square hole to accommodate the axial adjustment key; the closed end face of the eccentric synchronous axial force knot is provided with a hinge lug, and the hinge lugs at the ends of the two eccentric synchronous axial force knots are connected by a pin and form an obtuse angle.

[0006] The axial adjustment key is a pair, and is respectively inserted into the connecting square hole at the open end of the two eccentric synchronous axial force junctions; the axial adjustment key is cuboid in shape, and one end extends out of the connecting square hole; a locking steel ball is provided on the outer side of the axial adjustment key extending out of the connecting square hole.

[0007] The bolt sleeve is connected to the end of the axial adjustment key. The bolt sleeve is cylindrical, and one end of the bolt sleeve has an axial adjustment key insertion hole, and the axial adjustment key insertion hole is provided with a groove that cooperates with the locking steel ball. The other end of the bolt sleeve has a bolt receiving groove, and the end of the bolt sleeve is tightly attached to the inner wall of the U-shaped rib of the plate unit.

[0008] Furthermore, the axial adjustment keys are multiple and of different lengths, used to match the U-shaped rib structures of different plate units.

[0009] Furthermore, the bolt receiving groove at the end of the bolt sleeve is hexagonal in shape and is used to accommodate the end of the hexagonal bolt.

[0010] The advantages of this utility model are:

[0011] 1) In this utility model, a sleeve assembly for assisting in the installation of bolts is set in the space of the narrow U-shaped rib of the plate unit. Since the side of the U-shaped rib is angled, the sleeve assembly connected by hinges can fix one end of the bolt. During the tightening of the nut, the bolts on both sides will not rotate relative to each other. By simultaneously pre-tightening and finally tightening the symmetrical bolts and nuts, the bolt tightening operation is completed, avoiding the bolt tightening operation in the narrow space inside the U-rib. Attached Figure Description

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] Figure 1 This is an assembly state structural diagram of a plate unit U-shaped rib bolted eccentric synchronous axial force sleeve combination device according to the present invention.

[0014] Figure 2 This is a schematic diagram of the exploded state structure of a plate unit U-shaped rib bolted eccentric synchronous axial force sleeve combination device according to the present invention. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0017] like Figure 1 Figure 2 The diagram shows a plate unit U-shaped rib bolted eccentric synchronous axial force sleeve assembly device. The plate unit U-shaped rib 4 has bolt holes on both side walls near the end position, including an eccentric synchronous axial force joint 1, an axial adjustment key 2, and a bolt sleeve 3.

[0018] The eccentric synchronous axial force junction 1 has a pair. The eccentric synchronous axial force junction 1 is rectangular and closed at one end, with a connecting square hole for accommodating the axial adjustment key at the other end. A hinged lug is provided on the closed end face of the eccentric synchronous axial force junction 1, and the hinged lugs at the ends of the two eccentric synchronous axial force junctions are connected by a pin and form an obtuse angle.

[0019] A pair of axial adjustment keys 2 are respectively inserted into the connecting square holes at the open ends of the two eccentric synchronous axial force joints 1; the axial adjustment key 2 is cuboid in shape, and one end extends out of the connecting square hole; a locking steel ball 21 is provided on the outer side of the connecting square hole extending out of the axial adjustment key 2.

[0020] Bolt sleeve 3 is connected to the end of the axial adjustment key. Bolt sleeve 3 is cylindrical and has an axial adjustment key insertion hole at one end. The axial adjustment key insertion hole is provided with a groove that cooperates with the locking ball 21. Bolt sleeve 3 has a bolt receiving groove at the other end and the end of bolt sleeve 3 is in close contact with the inner wall of the U-shaped rib of the plate unit.

[0021] The axial adjustment key 2 has several of different lengths and is used to match the U-shaped rib structure of different plate units.

[0022] The bolt receiving groove at the end of the bolt sleeve 3 is hexagonal in shape and is used to accommodate the end of the hexagonal bolt.

[0023] The working principle of this utility model is as follows: by setting a sleeve assembly for assisting in the installation of bolts in the narrow space of the U-shaped rib of the plate unit, since the side of the U-shaped rib is angled, the hinged sleeve assembly can fix one end of the bolt, and the bolts on both sides will not rotate relative to each other during the tightening of the nut. By simultaneously pre-tightening and finally tightening the symmetrical bolts and nuts, the bolt tightening operation is completed, avoiding the bolt tightening operation in the narrow space inside the U-rib.

[0024] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A plate unit U-rib bolted eccentric synchronous axial force sleeve combination device, a bolt hole group is provided on both side walls at a position close to the end portion on the plate unit U-rib, characterized in that: The eccentric synchronous shaft force joint, the axial adjusting key and the bolt sleeve are included. The eccentric synchronous shaft force joint has a pair of rectangular parallelepiped shapes, one end of which is closed and the other end of which is provided with a connecting square hole for accommodating the axial adjusting key. The axial adjusting key has a pair of rectangular parallelepiped shapes, one end of which extends out of the connecting square hole. The bolt sleeve is connected to the end of the axial adjusting key, has a cylindrical shape, and has an axial adjusting key embedding hole at one end, and a bolt accommodating slot at the other end.

2. A plate unit U-rib bolted eccentric synchronous axial force sleeve assembly arrangement according to claim 1, characterized in that: The axial adjusting key has several lengths for matching different U-shaped rib structures of the plate unit.

3. A plate unit U-rib bolted eccentric synchronous axial force sleeve assembly apparatus according to claim 1, characterized by: The bolt accommodating slot at the end of the bolt sleeve has a hexagonal shape for accommodating the end of a hexagonal bolt.

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