Distance-adjustable expansion joint structure

Abstract

The utility model relates to the technical field of bridge expansion joints, and discloses a spacing-adjustable expansion joint structure which comprises a mounting box, one end of the mounting box is fixedly connected with an adjusting box, one end of the adjusting box is provided with an adjusting through groove penetrating into the mounting box, the top end of the mounting box is provided with a sliding through groove, and the sliding through groove is fixedly connected with the adjusting box. A limiting rod is fixedly connected between the two ends of the interior of the sliding through groove, and through cooperative use of a rotating rod, a rotating screw rod, a rotating screw sleeve, a moving sliding block, a trapezoidal moving block, a trapezoidal block and a trapezoidal groove, the effect of driving the two inclined blocks to get close to each other is achieved; and adjustment of the distance between the two expansion joint plates is completed through transmission of the stabilizing blocks, and the convenience of adjustment of the distance between the bridge expansion joints is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge expansion joints, in particular to an expansion joint structure with adjustable spacing. Background Art

[0002] In order to prevent the bridge structure from being damaged due to factors such as temperature changes, settlement, shrinkage creep, etc., expansion joints need to be set at appropriate locations of the structure to meet the requirements of bridge expansion and contraction deformation and relative displacement.

[0003] After searching, the utility model patent with Chinese patent publication number CN209307846U discloses an adjustable expansion joint device, including a first expansion joint plate and a second expansion joint plate arranged on one side of the first expansion joint plate, first connecting pieces are fixedly installed on both sides of the outer surface of the first expansion joint plate, an adjustment mechanism is fixedly installed on one side of the outer surface of the first connecting piece, second connecting pieces are fixedly installed on both sides of the outer surface of the second expansion joint plate, a connecting block is fixedly installed on one side of the outer surface of the second connecting piece, a threaded rotating rod is arranged between the first expansion joint plate and the second expansion joint plate, connecting holes are opened at the four corners inside the first connecting piece, a knob is arranged on one side of the top of the adjusting mechanism, and a threaded groove is arranged on one side of the corresponding threaded rotating rod inside the adjusting mechanism; the device realizes the adjustment of the spacing between the expansion joints by rotating the screw rod, but in actual use, the screw rod needs to be exposed to the outside to realize the device, which causes sand and stones to fall on the outer wall of the screw rod, thereby affecting the screw-mounted state between the screw rod and the screw sleeve, thereby reducing the adjustment effect of the bridge expansion joint. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an expansion joint structure with adjustable spacing.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an expansion joint structure with adjustable spacing, comprising a mounting box, one end of the mounting box is fixedly connected to an adjustment box, one end of the adjustment box is provided with an adjustment slot penetrating into the interior of the mounting box, a sliding slot is provided at the top of the mounting box, a limiting rod is fixedly connected between the two ends of the sliding slot, two limiting sleeves are slidably connected to the outer wall of the limiting rod, the tops of the two limiting sleeves are fixedly connected to stabilizing blocks, and the tops of the two stabilizing blocks are fixedly connected to expansion joint plates;

[0008] The bottom ends of the two limiting sleeves are provided with a movable adjustment mechanism.

[0009] Preferably, the movable adjustment mechanism includes a rotating screw, the bottom end of the rotating screw is rotatably connected to the bottom end of the adjusting box, the top of the adjusting box is provided with an adjusting opening, the top of the adjusting opening is provided with a cover plate installed inside the cover plate, the top of the cover plate is provided with a stabilizing through hole, the inside of the stabilizing through hole is rotatably connected with a rotating rod, the bottom end of the rotating rod is fixedly connected to the top end of the rotating screw, a rotating screw sleeve is screwed on the outer wall of the rotating screw, one end of the rotating screw sleeve is fixedly connected to a movable slider, the outer wall of the movable slider is slidably connected to the inside of the adjusting through groove, one end of the movable slider is fixedly connected to a trapezoidal moving block, one end of the two limit sleeves are fixedly connected to the tilting blocks, one end of the two tilting blocks are provided with a trapezoidal groove, the inside of the two trapezoidal grooves are slidably connected with trapezoidal blocks, and one end of the two trapezoidal blocks are respectively fixedly connected to the two ends of the trapezoidal moving block.

[0010] Furthermore, one end of the trapezoidal moving block is fixedly connected to a support sleeve, the interior of the support sleeve is slidably connected to a support rod, and both ends of the support rod are respectively fixedly connected to both ends inside the installation box.

[0011] Furthermore, a limiting groove is provided at the top of the rotating rod, two limiting through holes are provided inside the limiting groove, a fixing screw is installed between the two limiting through holes, a rotating plate is rotatably connected to the outer wall of the fixing screw, a fixing screw sleeve is threaded on the outer wall of the fixing screw, and a rotating handle is fixedly connected to the top of the rotating plate.

[0012] Based on the above, a waterproof layer is installed between the two expansion joint plates.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an expansion joint structure with adjustable spacing, which has the following beneficial effects:

[0015] The expansion joint structure with adjustable spacing is achieved by installing the installation box to the corresponding end of the bridge, and through the coordinated use of the rotating rod, rotating screw, rotating screw sleeve, moving slider, trapezoidal moving block, trapezoidal block and trapezoidal groove, the effect of driving the two inclined blocks to approach each other is achieved, and the spacing between the two expansion joint plates is adjusted through the transmission of the stabilizing block, thereby further improving the convenience of adjusting the expansion joint spacing of the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 3This is a front view structural diagram of the limit rod of the utility model;

[0019] Figure 4 It is a schematic diagram of the top view of the rotating rod of the utility model.

[0020] In the figure: 1. Installation box; 2. Adjustment box; 3. Limit rod; 4. Limit sleeve; 5. Stabilizing block; 6. Expansion joint plate; 7. Rotating screw; 8. Cover plate; 9. Rotating rod; 10. Rotating screw sleeve; 11. Moving slider; 12. Trapezoidal moving block; 13. Tilting block; 14. Trapezoidal block; 15. Support sleeve; 16. Support rod; 17. Fixed screw; 18. Rotating plate; 19. Fixed screw sleeve; 20. Rotating handle; 21. Waterproof layer. DETAILED DESCRIPTION

[0021] See also Figure 1-4 , a spacing adjustable expansion joint structure, comprising an installation box 1, one end of the installation box 1 is fixedly connected to an adjustment box 2, one end of the adjustment box 2 is provided with an adjustment slot that runs through the interior of the installation box 1, a sliding slot is provided at the top of the installation box 1, a limit rod 3 is fixedly connected between the two ends inside the sliding slot, two limit sleeves 4 are slidably connected to the outer wall of the limit rod 3, the tops of the two limit sleeves 4 are fixedly connected to stabilizing blocks 5, the tops of the two stabilizing blocks 5 are fixedly connected to expansion joint plates 6, and a movable adjustment mechanism is installed at the bottom ends of the two limit sleeves 4, the movable adjustment mechanism comprises a rotating screw 7, the bottom end of the rotating screw 7 is rotatably connected to the bottom end of the inside of the adjustment box 2, an adjustment opening is provided at the top of the adjustment box 2, a cover plate 8 is installed inside the adjustment opening, a stabilizing through hole is provided at the top of the cover plate 8, a rotating rod 9 is rotatably connected inside the stabilizing through hole, the bottom end of the rotating rod 9 is fixedly connected to the top of the rotating screw 7, and the outer wall of the rotating screw 7 The upper screw is provided with a rotating screw sleeve 10, one end of which is fixedly connected to a moving slider 11, the outer wall of the moving slider 11 is slidably connected to the inside of the adjusting groove, one end of the moving slider 11 is fixedly connected to a trapezoidal moving block 12, one end of the two limit sleeves 4 are fixedly connected to an inclined block 13, one end of the two inclined blocks 13 are provided with a trapezoidal groove, the interior of the two trapezoidal grooves are slidably connected with a trapezoidal block 14, one end of the two trapezoidal blocks 14 are respectively fixedly connected to the two ends of the trapezoidal moving block 12, by installing the installation box 1 to the corresponding end of the bridge, and through the coordinated use of the rotating rod 9, the rotating screw 7, the rotating screw sleeve 10, the moving slider 11, the trapezoidal moving block 12, the trapezoidal block 14 and the trapezoidal groove, the effect of driving the two inclined blocks 13 to approach each other is achieved, and the adjustment of the spacing between the two expansion joint plates 6 is completed through the transmission of the stabilizing block 5, thereby further improving the convenience of adjusting the spacing of the expansion joints of the bridge.

[0022] It should also be noted that one end of the trapezoidal moving block 12 is fixedly connected to a support sleeve 15, and the support sleeve 15 is internally slidably connected to a support rod 16, and the two ends of the support rod 16 are respectively fixedly connected to the two ends inside the installation box 1, further improving the movement stability of the trapezoidal moving block 12, and a limiting through groove is provided at the top of the rotating rod 9, and two limiting through holes are provided inside the limiting through groove, and a fixing screw 17 is installed between the two limiting through holes, and a rotating plate 18 is rotatably connected to the outer wall of the fixing screw 17, and a fixing screw sleeve 19 is screwed on the outer wall of the fixing screw 17, and a rotating handle 20 is fixedly connected to the top of the rotating plate 18, and the fixing screw sleeve 19 is disassembled, so as to achieve the effect of convenient disassembly of the rotating plate 18, thereby improving the convenience of rotating the rotating rod 9, and a waterproof layer 21 is installed between the two expansion joint plates 6 to achieve the waterproof effect of the bridge expansion joint.

[0023] In summary, when the expansion joint structure with adjustable spacing is in use, the installation box 1 is first installed to the corresponding end of the bridge, and after rotating the rotating rod 9, the rotating rod 9 drives the rotating screw 7 to rotate, and the rotating screw 7 drives the rotating screw sleeve 10 to move during the rotation process. The rotating screw sleeve 10 drives the trapezoidal moving block 12 to move through the moving slider 11, and the trapezoidal moving block 12 is restricted by the trapezoidal block 14 inside the trapezoidal groove during the up and down movement, thereby achieving the effect of driving the two inclined blocks 13 closer to each other, and the adjustment of the spacing between the two expansion joint plates 6 is completed through the transmission of the stabilizing block 5.

Claims

1. A spacing-adjustable expansion joint structure, comprising a mounting box (1), characterized in that: One end of the installation box (1) is fixedly connected to an adjustment box (2), one end of the adjustment box (2) is provided with an adjustment slot penetrating into the interior of the installation box (1), the top of the installation box (1) is provided with a sliding slot, a limit rod (3) is fixedly connected between the two ends of the interior of the sliding slot, two limit sleeves (4) are slidably connected to the outer wall of the limit rod (3), the tops of the two limit sleeves (4) are fixedly connected to a stabilizing block (5), and the tops of the two stabilizing blocks (5) are fixedly connected to an expansion joint plate (6); The bottom ends of the two limiting sleeves (4) are provided with a movable adjustment mechanism.

2. The expansion joint structure with adjustable spacing according to claim 1, characterized in that: The movable adjustment mechanism comprises a rotating screw (7), the bottom end of the rotating screw (7) is rotatably connected to the bottom end of the inside of the adjustment box (2), the top end of the adjustment box (2) is provided with an adjustment opening, a cover plate (8) is installed inside the adjustment opening, the top end of the cover plate (8) is provided with a stabilizing through hole, a rotating rod (9) is rotatably connected inside the stabilizing through hole, the bottom end of the rotating rod (9) is fixedly connected to the top end of the rotating screw (7), a rotating screw sleeve (10) is screwed on the outer wall of the rotating screw (7), and the rotating screw sleeve One end of the movable slider (11) is fixedly connected to the movable slider (10), the outer wall of the movable slider (11) is slidably connected to the inside of the adjusting slot, one end of the movable slider (11) is fixedly connected to the trapezoidal movable block (12), one end of the two limit sleeves (4) are fixedly connected to the inclined blocks (13), one end of the two inclined blocks (13) are each provided with a trapezoidal groove, the inside of the two trapezoidal grooves are slidably connected to the trapezoidal blocks (14), and one end of the two trapezoidal blocks (14) are respectively fixedly connected to the two ends of the trapezoidal movable block (12).

3. The expansion joint structure with adjustable spacing according to claim 2, characterized in that: One end of the trapezoidal moving block (12) is fixedly connected to a support sleeve (15), the interior of the support sleeve (15) is slidably connected to a support rod (16), and both ends of the support rod (16) are respectively fixedly connected to both ends inside the installation box (1).

4. The expansion joint structure with adjustable spacing according to claim 2, characterized in that: A limiting through slot is provided at the top end of the rotating rod (9), two limiting through holes are provided inside the limiting through slot, a fixing screw (17) is installed between the two limiting through holes, a rotating plate (18) is rotatably connected to the outer wall of the fixing screw (17), a fixing screw sleeve (19) is screwed on the outer wall of the fixing screw (17), and a rotating handle (20) is fixedly connected to the top end of the rotating plate (18).

5. The expansion joint structure with adjustable spacing according to claim 4, characterized in that: A waterproof layer (21) is installed between the two expansion joint plates (6).

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