CN219793638U

CN219793638U - Bridge precast beam board bottom sprag structure

Info

Publication number: CN219793638U
Application number: CN202223481180.9U
Authority: CN
Inventors: 林志鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-23
Filing date: 2022-12-23
Publication date: 2023-10-03
Anticipated expiration: 2032-12-23

Abstract

The utility model discloses a bottom supporting structure of a bridge precast beam slab, which comprises a base, wherein the top of the base is fixedly connected with a fixed box, the inside of the fixed box is vertically and rotatably connected with a threaded rod, the surface of the threaded rod is penetrated with a threaded sleeve, the threaded sleeve is in threaded connection with the threaded rod, both sides of the threaded sleeve are fixedly connected with movable rods, the tops of the movable rods are fixedly connected with supporting rods, the tops of the two groups of supporting rods penetrate through the outer wall of the top of the fixed box and are fixedly connected with the same supporting plate, the bottom of one side of the fixed box is provided with a transmission assembly, and four corners of the base are provided with fixed assemblies.

Description

Bridge precast beam board bottom sprag structure

Technical Field

The utility model relates to the technical field of bridge construction, in particular to a bottom supporting structure of a bridge precast beam slab.

Background

Bridge is a structure which is generally erected on rivers, lakes and seas and can smoothly pass vehicles, pedestrians and the like. In order to adapt to the traffic industry of modern high-speed development, bridges are also spreading to span mountain stream, poor geology or buildings which are erected to meet other traffic needs and enable the traffic to be more convenient. During bridge construction, the lower part is in an overhead state, so that a supporting structure is required to be installed below to bear the pressure born by the bridge precast beam slab, and the bridge is prevented from being broken due to overlarge load. However, the general structure of the existing bridge support structure is fixed, the height adjustment is difficult to be carried out according to the actual condition of the bridge, the flexibility is low, the existing bridge support structure is easy to deviate when being subjected to pressure, and the stability is reduced.

Disclosure of Invention

The utility model aims to provide a bottom supporting structure of a bridge precast beam slab, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a bridge precast beam board bottom sprag structure, includes the base, the top fixedly connected with fixed box of base, the inside vertical rotation of fixed box is connected with the threaded rod, the surface of threaded rod runs through there is the thread bush, the thread bush with threaded rod threaded connection, the equal fixedly connected with movable rod in both sides of thread bush, the top fixedly connected with bracing piece of movable rod, two sets of the top of bracing piece is all run through the same backup pad of top outer wall and fixedly connected with of fixed box, one side bottom of fixed box is provided with drive assembly, the four corners department of base all is provided with fixed subassembly.

Preferably, the transmission assembly comprises a first bevel gear, a second bevel gear, a rotating rod and a hand wheel, wherein the first bevel gear is fixedly sleeved on the surface of the threaded rod, the second bevel gear is connected with one side of the first bevel gear in a transmission manner, the rotating rod is fixedly connected with the other side of the second bevel gear, and one side of the rotating rod penetrates through the fixed box through a bearing seat and is fixedly connected with the hand wheel.

Preferably, the fixing assembly comprises a fixing lug plate, a ground nail and a reinforcing rib block, wherein the fixing lug plate is fixedly connected to the base, the ground nail is inserted into the fixing lug plate, and the reinforcing rib block is fixedly welded at the joint of the fixing lug plate and the base.

Preferably, two sides of the threaded rod are respectively and rotatably connected with the inner walls of the upper side and the lower side of the fixed box through bearing seats.

Preferably, sliding grooves are vertically formed in the inner walls of the left side and the right side of the fixed box, and the movable rods are in sliding fit with the sliding grooves.

Preferably, the top of backup pad fixedly connected with slipmat, the zigzag antiskid line has evenly been seted up on the slipmat.

Preferably, a reinforcing rib plate is fixedly welded at the joint of the supporting plate and the supporting rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model is provided with the transmission component, the hand wheel is manually rotated to drive the rotating rod to rotate so as to drive the second bevel gear to rotate, the threaded rod is driven to rotate under the transmission action of the first bevel gear so as to drive the threaded sleeve to lift along the threaded rod, the threaded sleeve drives the supporting rod to lift through the movable rod so as to drive the supporting plate to lift, and the supporting plate can be adjusted in height according to the actual condition of the bridge, so that the flexibility is high.

2. The fixing assembly is arranged in the utility model, the base can be fixed on the ground through the cooperation of the fixing lug plate and the ground nail, so that the base is not easy to deviate when being stressed, the stability is improved, the toughness strength of the joint of the fixing lug plate and the base can be increased through the reinforcing rib block, and the fixing lug plate is not easy to break.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a sectional view showing the internal structure of the stationary box of the present utility model;

FIG. 3 is a schematic view of a fixing assembly according to the present utility model.

In the figure: 1. a base; 2. a fixed box; 3. a threaded rod; 4. a thread sleeve; 5. a movable rod; 6. a support rod; 7. a support plate; 8. a transmission assembly; 81. a first bevel gear; 82. a second bevel gear; 83. a rotating lever; 84. a hand wheel; 9. a fixing assembly; 91. fixing the ear plate; 92. ground nails; 93. a reinforcing rib block; 10. a chute; 11. an anti-slip pad; 12. reinforcing rib plates.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1 and 2, the present utility model provides a technical solution: the utility model provides a bridge precast beam board bottom sprag structure, including base 1, the top fixedly connected with fixed box 2 of base 1, the inside vertical rotation of fixed box 2 is connected with threaded rod 3, the both sides of threaded rod 3 are passed through the bearing frame and are rotated with the upper and lower both sides inner wall of fixed box 2 respectively and are connected, threaded rod 3's surface runs through has thread bush 4, thread bush 4 and threaded rod 3 threaded connection, the equal fixedly connected with movable rod 5 in both sides of thread bush 4, the top fixedly connected with bracing piece 6 of movable rod 5, the top of two sets of bracing pieces 6 all runs through the top outer wall of fixed box 2 and fixedly connected with same backup pad 7.

In this embodiment, please refer to fig. 1, the top of the supporting plate 7 is fixedly connected with the anti-slip pad 11, the anti-slip pad 11 is uniformly provided with saw-tooth anti-slip lines, and the friction force between the supporting plate 7 and the precast beam slab can be increased through the anti-slip pad 11, so as to further improve the supporting effect.

In this embodiment, referring to fig. 2, a reinforcing rib plate 12 is fixedly welded at the joint of the support plate 7 and the support rod 6, and the toughness strength of the joint of the support plate 7 and the support rod 6 can be increased by the reinforcing rib plate 12, so as to improve the stability of the support plate.

In this embodiment, please refer to fig. 1 and 2, a transmission assembly 8 is disposed at the bottom of one side of the fixed case 2, the transmission assembly 8 includes a first bevel gear 81, a second bevel gear 82, a rotating rod 83 and a hand wheel 84, the first bevel gear 81 is fixedly sleeved on the surface of the threaded rod 3, the second bevel gear 82 is connected to one side of the first bevel gear 81 in a transmission manner, the rotating rod 83 is fixedly connected to the other side of the second bevel gear 82, one side of the rotating rod 83 penetrates the fixed case 2 through a bearing seat and is fixedly connected with the hand wheel 84, the rotating rod 83 is driven to rotate by manual rotation of the hand wheel 84, the second bevel gear 82 is driven to rotate, under the transmission effect of the first bevel gear 81, the threaded rod 3 is driven to rotate, the threaded sleeve 4 is driven to lift along the threaded rod 3, the supporting rod 6 is driven to lift by the movable rod 5, and the supporting plate 7 is driven to lift, so that the supporting plate 7 can be height-adjusted according to the actual condition of the bridge, and the flexibility is high.

In this embodiment, please refer to fig. 1 and 3, please see the four corners department of base 1 all is provided with fixed subassembly 9, fixed subassembly 9 includes fixed otic placode 91, ground nail 92 and strengthening rib piece 93, fixed otic placode 91 fixed connection is on base 1, ground nail 92 pegging graft on fixed otic placode 91, strengthening rib piece 93 fixed welding is in the junction of fixed otic placode 91 and base 1, through the cooperation of fixed otic placode 91 and ground nail 92, can fix base 1 subaerial for the base is difficult to take place the skew when receiving pressure, has improved stability, toughness intensity through the fixed otic placode 91 of strengthening rib piece 93 increase and base 1 junction, make fixed otic placode 91 be difficult to take place the fracture.

Example 2:

referring to fig. 2, this embodiment differs from the first embodiment in that: the chute 10 has all been vertically seted up to the left and right sides inner wall of fixed box 2, and movable rod 5 and chute 10 sliding fit can play direction and spacing effect to the removal of movable rod 5 through chute 10, and then improve the stability of movable rod 5.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge precast beam board bottom sprag structure, includes base (1), its characterized in that: the utility model discloses a fixed box, including fixed box (2), screw rod (3) are connected with in the vertical rotation in inside of base (1), the surface of screw rod (3) is run through there is thread bush (4), thread bush (4) with threaded rod (3) threaded connection, the equal fixedly connected with movable rod (5) in both sides of thread bush (4), the top fixedly connected with bracing piece (6) of movable rod (5), two sets of the top of bracing piece (6) all runs through the top outer wall of fixed box (2) and fixedly connected with same backup pad (7), one side bottom of fixed box (2) is provided with drive assembly (8), the four corners department of base (1) all is provided with fixed subassembly (9).

2. A bridge girder plate bottom support structure according to claim 1, wherein: the transmission assembly (8) comprises a first bevel gear (81), a second bevel gear (82), a rotating rod (83) and a hand wheel (84), wherein the first bevel gear (81) is fixedly sleeved on the surface of the threaded rod (3), the second bevel gear (82) is in transmission connection with one side of the first bevel gear (81), the rotating rod (83) is fixedly connected with the other side of the second bevel gear (82), and one side of the rotating rod (83) penetrates through the fixed box (2) through a bearing seat and is fixedly connected with the hand wheel (84).

3. A bridge girder plate bottom support structure according to claim 1, wherein: the fixing assembly (9) comprises a fixing lug plate (91), ground nails (92) and reinforcing rib blocks (93), wherein the fixing lug plate (91) is fixedly connected to the base (1), the ground nails (92) are inserted into the fixing lug plate (91), and the reinforcing rib blocks (93) are fixedly welded at the joint of the fixing lug plate (91) and the base (1).

4. A bridge girder plate bottom support structure according to claim 1, wherein: the two sides of the threaded rod (3) are respectively connected with the inner walls of the upper side and the lower side of the fixed box (2) in a rotating way through bearing seats.

5. A bridge girder plate bottom support structure according to claim 1, wherein: sliding grooves (10) are vertically formed in the inner walls of the left side and the right side of the fixed box (2), and the movable rod (5) is in sliding fit with the sliding grooves (10).

6. A bridge girder plate bottom support structure according to claim 1, wherein: the top fixedly connected with slipmat (11) of backup pad (7), uniformly seted up cockscomb structure antiskid line on slipmat (11).

7. A bridge girder plate bottom support structure according to claim 1, wherein: reinforcing rib plates (12) are fixedly welded at the joint of the supporting plate (7) and the supporting rod (6).