Anti-sinking large-seam comb plate expansion device

Abstract

The utility model discloses an anti-sinking large-seam comb plate telescopic device which comprises two comb plate bodies and a supporting plate, a plurality of clamping grooves are formed in the bottom of the supporting plate, a plurality of protruding blocks are fixedly connected to the upper surfaces of the comb plate bodies, the protruding blocks are connected with the clamping grooves in a clamped mode, a dovetail groove is formed in the middle of the bottom of the supporting plate, and the dovetail groove is connected with the clamping grooves in a clamped mode. The comb plate comprises a comb plate body, a dovetail groove is formed in the comb plate body, a sliding block is fixedly connected into the dovetail groove, a sliding groove is formed in the sliding block, two guide rods are fixedly connected to a plurality of toothed bars of the comb plate body, the guide rods are in sliding connection with the sliding groove, a baffle is fixedly connected to the top ends of the guide rods, and two fixing blocks are fixedly connected to the bottom of the comb plate body. Normal passing of vehicles is not affected in the stretching and retracting process of the two comb plate bodies through the supporting plates, meanwhile, the moving distance of the guide rods can be limited through the baffles, and the vehicles can conveniently pass through the supporting plates through the slopes.

Description

Technical Field

[0001] The utility model relates to the technical field of seam comb teeth, in particular to a telescopic device for an anti-sinking large seam comb tooth plate. Background Art

[0002] Expansion joints are structural joints set up to prevent building components from cracking or being damaged due to climate and temperature changes. To ensure the safety of personnel and vehicles, an expansion device needs to be installed at the structural joints. The most common one is the comb-tooth-shaped bridge expansion device.

[0003] As disclosed in the patent with announcement number CN214362839U, a large-slot anti-sinking comb plate telescopic device, there is a problem in the prior art that if a vehicle with a wheel smaller than the expansion slot tooth spacing passes through, it may get stuck in the tooth spacing, affecting the normal passage of the vehicle and easily causing accidents. In order to solve such problems, the present application proposes a comb plate telescopic device with a new structure. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an anti-sinking large-slit comb plate telescopic device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A large-slot anti-sinking comb plate telescopic device comprises two comb plate bodies and a support plate, wherein a plurality of slots are provided at the bottom of the support plate, a plurality of protrusions are fixedly connected to the upper surface of the comb plate body, and the protrusions are engaged with the slots, a dovetail groove is provided in the middle position of the bottom of the support plate, a slider is fixedly connected in the dovetail groove, a slide groove is provided inside the slider, two guide rods are fixedly connected to the multiple tooth rods of the comb plate body, and the guide rods are slidably connected to the slide groove, and a baffle is fixedly connected to the top of the guide rod.

[0007] As a further solution of the present invention, two fixing blocks are fixedly connected to the bottom of the comb plate body, and a telescopic rod is fixedly connected between the two fixing blocks that are close to each other.

[0008] As a further solution of the present invention, mounting holes are provided at two corners of the comb plate body.

[0009] As a further solution of the present invention, the upper surface of the support plate is provided with anti-slip grooves.

[0010] As a further solution of the present invention, both sides of the support plate are provided with inclined surfaces.

[0011] As a further solution of the present invention, the diameter of the baffle is larger than the opening diameter of the bottom of the slider.

[0012] As a further solution of the present invention, the support plate is located above the two comb plate bodies.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model uses the support plate to block the expansion and contraction gap between the comb plate bodies, so that the two comb plate bodies do not affect the normal passage of vehicles during the expansion and contraction process, thereby enabling different vehicles to move smoothly, making it safer to use and improving the use effect of the device.

[0015] 2. Through the coordinated use of the slider and the protrusion, the two comb plate bodies can automatically move when subjected to thermal expansion and contraction, thereby improving the flexibility of the device.

[0016] 3. The utility model limits the moving distance of the guide rod by the baffle to prevent the guide rod from moving out of the slide groove. At the same time, the inclined surface facilitates the vehicle to pass through the support plate, making it smoother to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the upper side three-dimensional structure of an anti-sinking large gap comb plate telescopic device proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the lower side three-dimensional structure of an anti-sinking large gap comb plate telescopic device proposed by the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the support plate of the anti-sinking large-slit comb plate telescopic device proposed in the utility model;

[0020] Figure 4 This is an enlarged structural diagram of part A of the anti-sinking large gap comb plate telescopic device proposed by the utility model.

[0021] In the figure: 1. Anti-slip groove; 2. Inclined surface; 3. Comb plate body; 4. Support plate; 5. Fixing block; 6. Telescopic rod; 7. Mounting hole; 8. Slot; 9. Bump; 10. Slider; 11. Baffle; 12. Dovetail groove; 13. Slide; 14. Guide rod. DETAILED DESCRIPTION

[0022] It should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, so that the embodiments of this application described here, based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of this application.

[0023] Reference Figure 1-Figure 4 , a large anti-sinking comb plate telescopic device, including two comb plate bodies 3 and a support plate 4, the support plate 4 is always located at the top of the comb plate body 3, to achieve the shielding of the comb plate body 3 expansion and contraction gap, so that the two comb plate bodies 3 do not affect the normal passage of the vehicle during the expansion and contraction process, a plurality of slots 8 are provided at the bottom of the support plate 4, a plurality of protrusions 9 are fixed to the upper surface of the comb plate body 3 by bolts, and the protrusions 9 are snapped into the slots 8, a dovetail groove 12 is provided in the middle position of the bottom of the support plate 4, a slider 10 is fixed in the dovetail groove 12 by bolts, the dovetail groove 12 can guide the slider 10 so that the slider 10 can move stably along the dovetail groove 12, a slide groove 13 is provided inside the slider 10, and the comb plate body 3 Two guide rods 14 are fixed to the multiple tooth rods by bolts, and the guide rods 14 are slidably connected to the slide grooves 13. When exposed to cold, the two comb plate bodies 3 shrink. At this time, the two comb plate bodies 3 move closer to each other. At this time, the protrusion 9 moves out of its corresponding slot 8, so that the top of the protrusion 9 docks with the spike part of the slot 8, thereby moving the support plate 4 upward. At the same time, the position of the guide rod 14 in the slide groove 13 is changed until the protrusion 9 is engaged with another slot 8 adjacent to the original corresponding slot 8, thereby automatically adjusting and fixing the distance between the two comb plate bodies 3. The top of the guide rod 14 is fixed with a baffle 11 by bolts. The baffle 11 can limit the distance moved by the guide rod 14 to prevent the guide rod 14 from moving out of the slide groove 13.

[0024] In the present utility model, it should be noted that two fixing blocks 5 are fixed to the bottom of the comb plate body 3 by bolts, and a telescopic rod 6 is fixed between the two fixing blocks 5 that are close to each other by bolts. The telescopic rod 6 can guide the comb plate body 3 to prevent the comb plate body 3 from tilting during movement and affecting the use of the device. Mounting holes 7 are provided at the two corners of the comb plate body 3 to facilitate the connection of the device to external components. Anti-skid grooves 1 are provided on the upper surface of the support plate 4. The anti-skid grooves 1 can increase the friction between the vehicle tire and the support plate 4 to avoid slipping. Inclined surfaces 2 are provided on both sides of the support plate 4 to facilitate the vehicle to pass through the support plate 4. The diameter of the baffle 11 is larger than the opening diameter at the bottom of the slider 10. The support plate 4 is located above the two comb plate bodies 3.

[0025] Working principle: When exposed to cold, the two comb plate bodies 3 shrink. At this time, the two comb plate bodies 3 move closer to each other on both sides, and the telescopic rod 6 extends. At this time, the protrusion 9 moves out of its corresponding slot 8, so that the top of the protrusion 9 docks with the spike part of the slot 8, thereby moving the support plate 4 upward. At the same time, the position of the guide rod 14 in the slide groove 13 is changed until the protrusion 9 is engaged with another slot 8 adjacent to the original corresponding slot 8, thereby automatically adjusting and fixing the distance between the two comb plate bodies 3. At the same time, the movement of the comb plate body 3 causes the slider 10 to move along the dovetail groove 12. At the same time, the support plate 4 is always located at the top of the comb plate body 3, thereby blocking the expansion and contraction gap of the comb plate body 3, so that the two comb plate bodies 3 do not affect the normal passage of vehicles during the expansion and contraction process.

[0026] The present invention has been described through the above embodiments. Those skilled in the art will understand that the present invention is not limited to the above embodiments, and more modifications can be made according to the teachings of the present invention. These modifications all fall within the scope of protection required by the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A comb plate telescopic device for preventing large seams from sinking, comprising two comb plate bodies (3) and a support plate (4), characterized in that: The bottom of the support plate (4) is provided with a plurality of card slots (8), the upper surface of the comb plate body (3) is fixedly connected with a plurality of protrusions (9), and the protrusions (9) are snap-fitted with the card slots (8), a dovetail groove (12) is provided at the middle position of the bottom of the support plate (4), a slider (10) is fixedly connected in the dovetail groove (12), a slide groove (13) is provided inside the slider (10), two guide rods (14) are fixedly connected to the plurality of tooth rods of the comb plate body (3), and the guide rods (14) are slidably connected to the slide grooves (13), and a baffle (11) is fixedly connected to the top of the guide rod (14).

2. The anti-sinking large gap comb plate telescopic device according to claim 1, characterized in that: Two fixed blocks (5) are fixedly connected to the bottom of the comb plate body (3), and a telescopic rod (6) is fixedly connected between two fixed blocks (5) that are close to each other.

3. The anti-sinking large gap comb plate telescopic device according to claim 1, characterized in that: Mounting holes (7) are provided at two corners of the comb plate body (3).

4. The anti-sinking large gap comb plate telescopic device according to claim 1, characterized in that: The upper surface of the support plate (4) is provided with anti-slip grooves (1).

5. The anti-sinking large gap comb plate telescopic device according to claim 4, characterized in that: Both sides of the support plate (4) are provided with inclined surfaces (2).

6. The anti-sinking large gap comb plate telescopic device according to claim 1, characterized in that: The diameter of the baffle (11) is larger than the opening diameter of the bottom of the slider (10).

7. The anti-sinking large gap comb plate telescopic device according to claim 1, characterized in that: The support plate (4) is located above the two comb plate bodies (3).

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