CN215562002U

CN215562002U - Bracket is used in public road bridge roof beam construction

Info

Publication number: CN215562002U
Application number: CN202122174970.1U
Authority: CN
Inventors: 刘兰军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-01-18
Anticipated expiration: 2031-09-09

Abstract

The utility model discloses a bracket for highway bridge construction, which relates to the technical field of highway bridge construction, and comprises a top plate, wherein a screw rod with positive and negative teeth, a sliding block and a first connecting rod are matched to push the top plate to move up and down, so that the height of the top plate is adjusted; the base, the top plate and the first connecting rod are matched to support the bridge; the anti-slip pad at the upper end of the top plate can increase the friction force between the top plate and the bridge floor when the bridge floor is supported by the top plate, so that the top plate is prevented from slipping; a gap is reserved between the positive and negative screw rod and the guide pipe, so that the influence of the friction force between the positive and negative screw rod and the guide pipe on the normal rotation of the positive and negative screw rod is avoided; the worm wheel and the worm are matched to have self-locking performance, and the position of the supporting plate is kept still when the handle is not rotated. The utility model has simple and reliable structure, convenient operation and strong practicability, is convenient for strongly supporting the local area of the pavement bridge and is suitable for popularization.

Description

Bracket is used in public road bridge roof beam construction

Technical Field

The utility model relates to the technical field of highway bridge construction, in particular to a bracket for highway bridge construction.

Background

The highway bridge engineering refers to the whole work of planning, designing, constructing, maintaining, repairing and the like of structures of roads crossing water areas, valleys and all traffic channels.

Need use the bracket to support the construction to the bridge floor during public road bridge roof beam construction, traditional bridge support bracket is applicable to the support of large tracts of land, is not convenient for support, and the practicality is relatively poor to the stress point of part.

Disclosure of Invention

Aiming at the problems, the utility model provides a bracket for highway bridge construction, which solves the problems that the existing construction bracket is inconvenient to support local stress points and has poor practicability.

The technical scheme of the utility model is as follows: a bracket for highway bridge construction comprises a base, a top plate, a positive and negative screw rod, a sliding block and a first connecting rod; a top plate is arranged above the base, guide pipes are vertically arranged on two sides of the lower end of the top plate, fixed shafts matched with the guide pipes are arranged on two sides of the upper end of the base, and the fixed shafts are arranged in the guide pipes in a sliding connection mode; the base is characterized in that a positive and negative tooth lead screw is transversely arranged between the base and the top plate, a sliding block is sleeved at the two ends of the positive and negative tooth lead screw in a threaded manner, the sliding block is hinged to the base and the top plate through a first connecting rod, and the first connecting rods on the two sliding blocks are symmetrically arranged.

Further, a handle is sleeved on the middle position of the screw rod with the positive and negative teeth and fixedly connected with the middle position of the screw rod.

Further, a gap is reserved between the screw rod with the positive and negative teeth and the guide pipe.

Furthermore, the upper end of the top plate is provided with an anti-skid pad.

Further, both ends all are equipped with the L template around the base both sides, with two of one side the L template sets up relatively, with two of one side be equipped with the backup pad between the L template, backup pad upper end both sides all are equipped with outstanding axle, outstanding axle sliding connection's setting is between L template and base outer wall, L template bottom inboard is rotated and is connected with the second connecting rod, with two of one side the first end of second connecting rod is connected through the pivot, with two of one side second connecting rod second end is articulated with backup pad both sides lateral wall respectively, pivot one end is run through the L template and is connected with drive arrangement.

Further, drive arrangement includes worm wheel, protective housing, worm, shaft coupling and handle, two pivot one end all runs through the L template and is connected with the worm wheel, be equipped with the protective housing on the base outer wall, two the worm wheel all rotates the setting of connecting in the protective housing, two the worm wheel top all is equipped with engaged with worm, two through coupling joint, one of them between the worm one end is rotated with the protective housing inner wall and is connected, another worm one end runs through the protective housing lateral wall and is connected with the handle.

Further, the rotation directions of the two worms are opposite.

The utility model has the advantages that: the guide tube and the fixed shaft are matched to limit the movement range of the top plate, so that the top plate is ensured to move up and down only in the vertical direction; the positive and negative screw rods, the sliding block and the first connecting rod are matched to push the top plate to move up and down, so that the height of the top plate is adjusted; the base, the top plate and the first connecting rod are matched to support the bridge; the anti-slip pad at the upper end of the top plate can increase the friction force between the top plate and the bridge floor when the bridge floor is supported by the top plate, so that the top plate is prevented from slipping; a gap is reserved between the positive and negative screw rod and the guide pipe, so that the influence of the friction force between the positive and negative screw rod and the guide pipe on the normal rotation of the positive and negative screw rod is avoided; the L-shaped plate can guide the movement of the supporting plate and simultaneously prevent the supporting plate from being separated from the base; when the supporting plate is contacted with the ground, the contact area between the base and the ground can be increased, and the base is prevented from overturning during working; the worm wheel, the worm and the coupling are matched to ensure that the two supporting plates move simultaneously; the worm wheel and the worm are matched to have self-locking performance, so that the position of the supporting plate is kept still when the handle is not rotated; the protective housing can play the guard action to worm wheel and worm, avoids worm wheel and worm to expose outside when using, causes danger. The utility model has simple and reliable structure, convenient operation and strong practicability, is convenient for strongly supporting the local area of the pavement bridge and is suitable for popularization.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

FIG. 1 is a structural schematic diagram of the overall state of the present invention;

FIG. 2 is a schematic diagram of the overall configuration of the present invention;

FIG. 3 is a schematic view of the mounting of the support plate of the present invention;

fig. 4 is a schematic structural diagram of the driving device of the present invention.

Reference numerals: the device comprises a base 1, a top plate 2, a non-slip mat 201, a guide tube 3, a fixed shaft 4, a screw rod with positive and negative teeth 5, a slider 6, a first connecting rod 7, a handle 8, an L-shaped plate 9, a supporting plate 10, a protruding shaft 11, a second connecting rod 12, a rotating shaft 13, a driving device 14, a worm wheel 141, a protective shell 142, a worm 143, a coupler 144 and a handle 145.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 4, a bracket for highway bridge construction includes a base 1, a top plate 2, a lead screw 5 with positive and negative teeth, a slider 6 and a first connecting rod 7; a top plate 2 is arranged above the base 1, guide pipes 3 are vertically arranged on two sides of the lower end of the top plate 2, fixed shafts 4 matched with the guide pipes 3 are arranged on two sides of the upper end of the base 1, the fixed shafts 4 are arranged in the guide pipes 3 in a sliding connection mode, the guide pipes 3 and the fixed shafts 4 are matched to limit the movement range of the top plate 2, and the top plate 2 is guaranteed to move vertically; the front and back tooth lead screws 5 are transversely arranged between the base 1 and the top plate 2, the two ends of each front and back tooth lead screw 5 are respectively provided with a sliding block 6 in a threaded manner, each sliding block 6 is hinged with the base 1 and the top plate 2 through a first connecting rod 7, the first connecting rods 7 positioned on the two sliding blocks 6 are symmetrically arranged, the first connecting rods 7 limit the rotation of the sliding blocks 6, when the front and back tooth lead screws 5 rotate, the two sliding blocks 6 can be driven to move in opposite directions to be close to or away from each other, the top plate 2 can be driven to move up and down by the driving of the four first connecting rods 7, the height of the top plate 2 is adjusted, a handle 8 is fixedly connected with the middle position of each front and back tooth lead screw 5 in a sleeved manner, and the handle 8 is convenient for manually controlling the rotation of the front and back tooth lead screws 5; when the device is used, the base 1 is placed on the ground and is contacted with a bridge floor by controlling the top plate 2 to move upwards to play a supporting role, the upper end of the top plate 2 is provided with the anti-slip pad 201, the anti-slip pad 201 can increase the friction force between the anti-slip pad 201 and the bridge floor when the bridge floor is supported by the top plate 2, so that the top plate 2 is prevented from slipping, a gap is reserved between the positive and negative tooth lead screw 5 and the guide pipe 3, and the friction force between the positive and negative tooth lead screw 5 and the guide pipe 3 is prevented from influencing the normal rotation of the positive and negative tooth lead screw 5; the front end and the rear end of two sides of a base 1 are respectively provided with an L-shaped plate 9, the two L-shaped plates 9 on the same side are oppositely arranged, a supporting plate 10 is arranged between the two L-shaped plates 9 on the same side, two sides of the upper end of the supporting plate 10 are respectively provided with a protruding shaft 11, the protruding shafts 11 are arranged between the L-shaped plates 9 and the outer wall of the base 1 in a sliding connection mode, the L-shaped plates 9 can play a role in guiding the movement of the supporting plate 10 and simultaneously prevent the supporting plate 10 from being separated from the base 1, the inner side of the bottom of the L-shaped plates 9 is rotatably connected with second connecting rods 12, the first ends of the two second connecting rods 12 on the same side are connected through rotating shafts 13, the second ends of the two second connecting rods 12 on the same side are respectively hinged with the side walls on two sides of the supporting plate 10, the rotating shafts 13 can drive the second connecting rods 12 to swing, and then the second ends of the second connecting rods 12 drive the supporting plate 10 to overturn, and under the cooperation of the protruding shafts 11, the supporting plate 10 is controlled to move downwards while overturning, when the support plate 10 moves to contact with the ground, the support plate 10 can increase the contact area between the base 1 and the ground, so that the base 1 is prevented from overturning during operation; one end of each rotating shaft 13 penetrates through the L-shaped plate 9 to be connected with a driving device 14, the driving device 14 can drive the rotating shafts 13 to rotate, each driving device 14 comprises a worm wheel 141, a protective shell 142, worms 143, a coupler 144 and a handle 145, one end of each rotating shaft 13 penetrates through the L-shaped plate 9 to be connected with the worm wheel 141, the worm wheels 141 are fixedly connected with the rotating shafts 13, the rotating shafts 13 can be driven to rotate when the worm wheels 141 rotate, the protective shells 142 are arranged on the outer wall of the base 1, the two worm wheels 141 are rotatably connected in the protective shells 142, the worms 143 which are meshed with each other are arranged above the two worm wheels 121, the two worms 143 are connected through the coupler 144, the coupler 144 can ensure that the two worms 143 rotate simultaneously, the rotating directions of the two worms 143 are opposite, when one of the worms 143 rotates, the other worm 143 can be driven to rotate simultaneously, the two worm wheels 141 are driven to rotate simultaneously in opposite directions, and the two supporting plates 10 are driven to move simultaneously and contact with the ground, the base 1 is supported; one end of one of the worms 143 is rotatably connected with the inner wall of the protective casing 142, one end of the other worm 143 penetrates through the side wall of the protective casing 142 and is connected with a handle 145, the handle 145 is convenient for manually controlling the rotation of the worm 143, the worm wheel 141 and the worm 143 are matched to have self-locking performance, the position of the support plate 10 is guaranteed to be kept still when the handle 145 is not rotated, the protective casing 142 can protect the worm wheel 141 and the worm 143, and the worm wheel 141 and the worm 143 are prevented from being exposed to the outside when in use to cause danger.

The use method of the utility model comprises the following steps: when needing to support highway bridge, at first place base 1 subaerial, then rotate handle 145, handle 145 drives one of them worm 143 and rotates, and then another worm 143 rotates simultaneously, and then drive two worm wheels 141 and rotate with opposite direction simultaneously, under the drive of pivot 13, drive two backup pad 10 simultaneous movement and with ground contact, play the supporting role to base 1, then rotate handle 8, handle 8 drives positive and negative tooth lead screw 5 and rotates, and then drive two sliders 6 and remove simultaneously and be close to each other, at the drive of four first connecting rods 7, promote roof 2 rebound, when roof 2 removes to contact with the bridge floor, stop rotating handle 8, base 1 this moment, roof 2 and first connecting rod 7 cooperate and play the supporting role to the bridge.

The guide tube and the fixed shaft are matched to limit the movement range of the top plate, so that the top plate is ensured to move up and down only in the vertical direction; the positive and negative screw rods, the sliding block and the first connecting rod are matched to push the top plate to move up and down, so that the height of the top plate is adjusted; the base, the top plate and the first connecting rod are matched to support the bridge; the anti-slip pad at the upper end of the top plate can increase the friction force between the top plate and the bridge floor when the bridge floor is supported by the top plate, so that the top plate is prevented from slipping; a gap is reserved between the positive and negative screw rod and the guide pipe, so that the influence of the friction force between the positive and negative screw rod and the guide pipe on the normal rotation of the positive and negative screw rod is avoided; the L-shaped plate can guide the movement of the supporting plate and simultaneously prevent the supporting plate from being separated from the base; when the supporting plate is contacted with the ground, the contact area between the base and the ground can be increased, and the base is prevented from overturning during working; the worm wheel, the worm and the coupling are matched to ensure that the two supporting plates move simultaneously; the worm wheel and the worm are matched to have self-locking performance, so that the position of the supporting plate is kept still when the handle is not rotated; the protective housing can play the guard action to worm wheel and worm, avoids worm wheel and worm to expose outside when using, causes danger. The utility model has simple and reliable structure, convenient operation and strong practicability, is convenient for strongly supporting the local area of the pavement bridge and is suitable for popularization.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The bracket for the construction of the highway bridge is characterized by comprising a base (1), a top plate (2), a screw rod (5) with positive and negative teeth, a sliding block (6) and a first connecting rod (7); a top plate (2) is arranged above the base (1), guide pipes (3) are vertically arranged on two sides of the lower end of the top plate (2), fixed shafts (4) matched with the guide pipes (3) are arranged on two sides of the upper end of the base (1), and the fixed shafts (4) are arranged in the guide pipes (3) in a sliding connection mode; transversely be equipped with positive and negative tooth lead screw (5) between base (1) and roof (2), the cover of the equal spiro union in positive and negative tooth lead screw (5) both ends is equipped with slider (6), it is articulated all through first connecting rod (7) between slider (6) and base (1) and roof (2), and is located first connecting rod (7) symmetry setting on two sliders (6).

2. The bracket for road bridge construction according to claim 1, wherein: the middle position of the screw rod (5) with the positive and negative teeth is fixedly connected with a sleeve which is provided with a handle (8).

3. The bracket for road bridge construction according to claim 2, wherein: and a gap is reserved between the positive and negative tooth screw rod (5) and the guide pipe (3).

4. The bracket for road bridge construction according to claim 1, wherein: and the upper end of the top plate (2) is provided with an anti-skid pad (201).

5. The bracket for road bridge construction according to claim 1, wherein: base (1) both ends all are equipped with L template (9) around both sides, with two of one side L template (9) sets up relatively, with two of one side be equipped with backup pad (10) between L template (9), backup pad (10) upper end both sides all are equipped with outstanding axle (11), outstanding axle (11) sliding connection's setting is between L template (9) and base (1) outer wall, L template (9) bottom inboard rotates and is connected with second connecting rod (12), with two of one side second connecting rod (12) first end is connected through pivot (13), with two of one side second connecting rod (12) second end is articulated with backup pad (10) both sides lateral wall respectively, pivot (13) one end is run through L template (9) and is connected with drive arrangement (14).

6. The bracket for road bridge construction according to claim 5, wherein: drive arrangement (14) include worm wheel (141), protective housing (142), worm (143), shaft coupling (144) and handle (145), two pivot (13) one end all runs through L template (9) and is connected with worm wheel (141), be equipped with protective housing (142) on base (1) outer wall, two worm wheel (141) all rotate the setting of connecting in protective housing (142), two worm wheel (141) top all is equipped with engaged with worm (143), two connect through shaft coupling (144) between worm (143), one of them worm (143) one end is connected with protective housing (142) inner wall rotation, and another worm (143) one end is run through protective housing (142) lateral wall and is connected with handle (145).

7. The bracket for road bridge construction according to claim 6, wherein: the rotation directions of the two worms (143) are opposite.