CN213142778U

CN213142778U - Comb tooth type telescoping device

Info

Publication number: CN213142778U
Application number: CN202021667871.6U
Authority: CN
Inventors: 徐江强; 刘新成; 刘峰; 张和平; 张永波; 邹远雄
Original assignee: Chengdu Changchang Road And Bridge Technology Co ltd
Current assignee: Chengdu Changchang Road And Bridge Technology Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-05-07
Anticipated expiration: 2030-08-11

Abstract

The utility model belongs to the fishback field, concretely relates to broach type telescoping device. The expansion joint comprises a middle cross joint toothed plate, a left side toothed plate and a right side toothed plate, wherein the middle cross joint toothed plate is arranged on an expansion joint, the left side toothed plate and the right side toothed plate are respectively connected to two opposite sides of the middle cross joint toothed plate, the left side toothed plate is arranged on the left concrete of the expansion joint, the right side toothed plate is arranged on the concrete on the right side of the expansion joint, the expansion joint further comprises a plurality of displacement control assemblies, each displacement control mechanism comprises a guide rail, a connecting rod assembly and an elastic element, the guide rails are arranged on two sides of the expansion joint, the guide rails on two sides of the expansion joint are movably connected with the connecting rod assembly, the middle point of the connecting rod assembly is movably connected with the elastic element. The utility model discloses a link assembly and guide rail cooperation guarantee to stride seam in the pinion rack both sides respectively with the wide even of seam that pinion rack on the left side and the pinion rack on the right formed, played the effect that improves the driving comfort level.

Description

Comb tooth type telescoping device

Technical Field

The utility model belongs to the fishback field, concretely relates to broach type telescoping device.

Background

The road is a major artery for economic development, and the total mileage of the road in China is continuously refreshed and recorded along with the development of social economy. In the process of road construction, bridge construction can often be involved, and the bridge deck at present adopts plate segmentation concatenation connection shaping to accelerate the construction speed, improve bridge structures's reliability. The expansion joint can be formed at the splicing position of the adjacent bridge deck plates, a connecting structure capable of being matched with the expansion joint to stretch needs to be arranged, the road surface gap is eliminated, and the driving safety is ensured.

The connection structure commonly used at present is a comb-tooth type isolation plate expansion device, as the application number of the Chinese patent application: 201810214759.8, application date 2018.03.15, entitled comb-tooth bridge expansion device and construction method thereof, comprising a cross-seam middle toothed plate and first toothed plates symmetrically arranged at two sides of the cross-seam middle toothed plate; the displacement control assembly is arranged below the first toothed plate and the middle toothed plate, the upper end of the elastic element is fixedly arranged below the middle toothed plate, the lower end of the elastic element is fixedly arranged at the middle part of the displacement control cross beam, the displacement control cross beams are connected to integrally ensure that the seam width is synchronous and the adhesive tape seat plate used for installing a waterproof adhesive tape is arranged, and the waterproof adhesive tape arranged between the stainless isolation plate and the adhesive tape seat plate provides a reliable drainage waterproof function for the telescopic device.

Above-mentioned patent passes through the extension or the shortening of displacement control crossbeam adaptation expansion joint, but this displacement control crossbeam control extension can drive when or shortening and stride the seam in the pinion rack motion, stride the seam in the pinion rack motion just can not guarantee to stride the seam in the pinion rack and the seam width size inhomogeneous that the limit pinion rack at both ends formed, lead to the driving unstable.

Disclosure of Invention

The utility model provides a broach type telescoping device aims at solving and strides the seam width size inhomogeneous that the pinion rack formed with the limit pinion rack at both ends in the seam, leads to the unstable problem of driving.

The utility model discloses a following scheme realizes:

the utility model provides a broach type telescoping device, includes and strides seam median plate, left side pinion rack and right pinion rack, stride seam median plate setting on the expansion joint, stride the relative both sides of seam median plate and connect left side pinion rack and right pinion rack respectively, the left side pinion rack sets up on the left concrete of expansion joint, the right pinion rack sets up on the concrete on expansion joint right side, still includes a plurality of displacement control subassemblies, displacement control mechanism includes guide rail, link assembly and elastic element, the guide rail sets up in the expansion joint both sides, the equal swing joint link assembly of guide rail of expansion joint both sides, the mid point swing joint elastic element of link assembly, elastic element connects and strides seam median plate.

Furthermore, a sliding groove is formed in the guide rail, and a protrusion matched with the sliding groove is formed in the connecting rod assembly.

Furthermore, a downward sliding groove is formed in the guide rail, and an upward protrusion matched with the sliding groove is formed in the connecting rod assembly. Or the guide rail is provided with an upward sliding groove, and the connecting rod assembly is provided with a downward projection matched with the sliding groove.

Furthermore, the connecting rod assembly comprises two connecting rods, the two connecting rods are connected to the guide rail in a crossed mode, the center crossed point is movably connected with the elastic element, and two ends of the two connecting rods are connected to the guide rail.

Furthermore, the central crossing point of the two connecting rods is movably connected with the elastic element through a rotating connecting piece.

Further, the connecting rod assembly comprises a connecting rod, and the middle point of the connecting rod is movably connected with an elastic element.

Further, a waterproof layer is arranged at the bottom of the displacement control mechanism and connected with two sides of the expansion joint.

Furthermore, the bottoms of the cross-seam middle toothed plate, the left toothed plate and the right toothed plate are provided with isolation plates. The division board not only can play the effect of preventing the sediment, can also avoid striding in the seam pinion rack, the pinion rack on the left side and the pinion rack on the right and concrete direct contact, play the effect of protection concrete. The pinion rack is direct and the division board contact in striding the seam, can also play the effect that reduces contact friction, makes the flexible of adaptation expansion joint that the pinion rack can be better in striding the seam.

Further, the bottom of the isolation plate is provided with damping rubber. The damping rubber has a damping effect.

Further, be provided with fixed subassembly in the expansion joint, fixed subassembly includes fixed plate and dowel, and the both sides concrete in expansion joint all is connected with the fixed plate, the dowel is connected to the fixed plate, the dowel is connected in the concrete. The fixed plate provides a hookup location for guide rail and waterproof layer, connects guide rail and waterproof layer on the fixed plate, can prevent to damage the concrete.

Furthermore, the lower parts of the left toothed plate and the right toothed plate are both provided with embedded anchor bolts.

Adopt above-mentioned technical scheme, the utility model discloses a following advantage:

1. the utility model discloses a link assembly and guide rail cooperation guarantee to stride seam in the pinion rack both sides respectively with the wide even of seam that pinion rack on the left side and the pinion rack on the right formed, played the effect that improves the driving comfort level.

2. The utility model discloses well division board not only can play the effect of preventing the sediment, and pinion rack, the pinion rack on the left side and the pinion rack on the right and concrete direct contact in can also avoiding striding the seam play the effect of protection concrete. The pinion rack is direct and the division board contact in striding the seam, can also play the effect that reduces contact friction, makes the flexible of adaptation expansion joint that the pinion rack can be better in striding the seam.

3. The utility model discloses well guide rail is connected in the expansion joint both sides, at link assembly slip in-process, makes whole displacement control mechanism have better stability.

4. The utility model has the advantages of simple structure does benefit to manufacturing and installation, does benefit to industrialization batch production, and has low in production cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the embodiment 1;

FIG. 3 is a schematic view of an embodiment 2;

FIG. 4 is a schematic view of an embodiment 3;

fig. 5 is a schematic structural view of the displacement control mechanism of the present invention;

fig. 6 is a schematic structural view of the connecting rod of the present invention;

FIG. 7 is a top view of FIG. 4;

fig. 8 is a schematic structural view of the fixing assembly of the present invention;

fig. 9 is a schematic view of the connection structure of the waterproof layer of the present invention;

in the drawings: 1. a cross-seam central toothed plate; 2. a left toothed plate; 3. a right toothed plate; 4. displacement control mechanism, 41, guide rail, 42, link assembly, 421, connecting rod, 43, elastic element, 5, division board, 6, yielding rubber, 7, fixed subassembly, 71, fixed plate, 72, anchor bar, 8, waterproof layer, 9, embedded anchor bolt, 10, embedded door bar, 11, protrusion, 12, rotation connecting piece, 13, contained angle.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that when an element is referred to as being "fixed" or "disposed" to another element, it can be directly on the other element or be indirectly connected to the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

As shown in fig. 1, this embodiment provides a comb-tooth type expansion device, which includes a middle cross-seam toothed plate 1, a left toothed plate 2, and a right toothed plate 3, where the middle cross-seam toothed plate 1 is disposed on an expansion joint, two opposite sides of the middle cross-seam toothed plate 1 are respectively connected to the left toothed plate 2 and the right toothed plate 3, the left toothed plate 2 is disposed on concrete on the left side of the expansion joint, the right toothed plate 3 is disposed on concrete on the right side of the expansion joint, and the expansion device further includes a plurality of displacement control assemblies, as shown in fig. 5, the displacement control mechanism 4 includes a guide rail 41, a link assembly 42, and an elastic element 43, where the guide rail 41 is disposed on two sides of the expansion joint, the guide rails 41 on two sides of the expansion joint are both movably connected to the link assembly 42, a midpoint of the link assembly 42 is movably connected to the elastic element 43; the linkage assembly 42 moves to accommodate the expansion or contraction of the expansion joint.

The working principle is as follows: the bridge deck is forced to move, so that the expansion joint is extended or shortened; when the expansion joint is expanded or shortened, the connecting rod assembly 42 slides in the guide rail 41 to adapt to the expansion or shortening of the expansion joint, because the middle point of the connecting rod assembly 42 is movably connected with the elastic element 43, the lengths of the connecting rod assemblies 42 on the two sides of the elastic element 43 are equal, so that the elastic element 43 is positioned in the middle position of the expansion joint no matter how the connecting rod assembly 42 slides, the elastic element 43 is fixedly connected with the middle tooth plate 1 across the joint, and because the lengths of the connecting rod assemblies 42 on the two sides of the elastic element 43 are the same, the displacement of the bridge deck plates on the two sides relative to the middle tooth plate 1 across the joint can be always kept consistent, and the width of the joint formed by the middle tooth plate 1 across the joint, the left; the even seam width can improve driving comfort.

As shown in fig. 2, the number of the displacement control assemblies is 2; as shown in fig. 3, the number of the displacement control assemblies is 1; of course, the number of the displacement control assemblies is not limited to 1 or 2, and the number of the displacement control assemblies can be determined by a person skilled in the art according to the actual use condition.

Further, a sliding groove is formed on the guide rail 41, and a protrusion 11 matched with the sliding groove is formed on the connecting rod assembly 42.

Further, the guide rail 41 is provided with a downward sliding groove, and the link assembly 42 is provided with an upward protrusion 11 engaged with the sliding groove. Based on the structure, when the middle part of the cross-seam middle toothed plate 1 is stressed by a force which enables the middle part to protrude upwards, the guide rail 41 has a downward force on the connecting rod assembly 42, the connecting rod assembly 42 has an upward force on the guide rail 41, the effect that the guide rail 41 is stably matched with the connecting rod assembly 42 is achieved, the connecting rod assembly 42 can slide in the guide rail 41, and the middle part of the cross-seam middle toothed plate 1 can be prevented from protruding upwards.

It should be noted that the above structure is only one preferable structure, and it is needless to say that the guide rail 41 may be provided with a slide groove facing upward, and the link assembly may be provided with a downward projection 11 that engages with the slide groove.

Further, the connecting rod assembly 42 includes two connecting rods 421, the two connecting rods 421 are connected to the guide rail 41 in a crossing manner, the center crossing point is movably connected with the elastic element 43, and two ends of the two connecting rods are connected to the guide rail 41.

Further, the central crossing point of the two links 421 is movably connected to the elastic member 43 through the rotary connection member 12. It should be noted that the rotary connector 12 is fixedly connected to the elastic element 43, and the two links 421 are rotatably connected to the rotary connector 12. The rotating connector 12 is preferably a connecting pin, but the rotating connector 12 may be other connectors as long as the connecting rod 421 is ensured to be rotatably connected with the elastic element.

Based on the connection structure of the above connecting rod 421, the lengths of the two sides of the central intersection point of the connecting rod 421 are equal, so that no matter how the connecting rod 421 slides in the guide rail 41, or rotates relative to the elastic element 43, the uniform width of the seam formed by the two sides of the middle tooth plate 1 and the left tooth plate 2 and the right tooth plate 3 across the seam can be ensured, and the effect of improving the driving comfort is achieved.

The working principle is as follows: as shown in fig. 2, when the expansion joint is extended, the two connecting rods slide in the guide rail 41, so that the included angle 13 between the two connecting rods 421 is reduced; when the expansion joint is shortened, the two connecting rods 421 slide in the guide rail 41, so that the included angle 13 between the two connecting rods 421 is increased.

The link assembly also includes another structure, as shown in fig. 4, the link assembly includes a link 421, and the elastic member 43 is movably connected to the middle point of the link.

The elastic element 43 is composed of an upper connecting plate, a lower connecting plate and a rubber body positioned between the upper connecting plate and the lower connecting plate, the rubber body, the upper connecting plate and the lower connecting plate are integrally formed in a vulcanization mode, the upper connecting plate is fixedly connected to the lower portion of the cross-seam middle toothed plate 1 in a threaded connection mode, and the lower connecting plate is movably connected with the connecting rod assembly 42 through a rotating connecting piece. The upper connecting plate and the lower connecting plate are preferably steel plates.

Further, a waterproof layer 8 is arranged at the bottom of the displacement control mechanism 4, and the waterproof layer 8 is connected with two sides of the expansion joint. As shown in fig. 9, the waterproof layer 8 is connected to both sides of the expansion joint by the connection base. The waterproof layer 8 prevents water leakage.

Further, the bottoms of the cross-seam middle toothed plate 1, the left toothed plate 2 and the right toothed plate 3 are provided with a partition plate 5. The division board 5 not only can play the effect of preventing the sediment, and the pinion rack 1 in can also avoiding striding the seam, pinion rack 2 on the left and pinion rack 3 on the right and concrete direct contact play the effect of protection concrete. Stride in the seam pinion rack 1 direct and 5 contacts of division board, can also reduce contact friction, make and stride the flexible of the adaptation expansion joint that pinion rack 1 can be better in the seam. Wherein the isolation plate 5 is preferably stainless steel having the advantages of wear resistance and rust prevention.

Further, the bottom of the isolation plate 5 is provided with a damping rubber 6. The cushion rubber 6 has a cushion function.

As shown in fig. 8, further, a fixing assembly 7 is disposed in the expansion joint, the fixing assembly 7 includes a fixing plate 71 and an anchor bar 72, the fixing plate 71 is connected to concrete on both sides of the expansion joint, the fixing plate 71 is connected to the anchor bar 72, and the anchor bar 72 is connected to the concrete. The fixing plate 71 provides a connection position for the guide rail 41 and the waterproof layer 8, and the guide rail 41 and the waterproof layer 8 are connected to the fixing plate 71, thereby preventing damage to concrete.

The fixing plate 71 is made of 90-degree angle steel, so that better supporting force is achieved, and connection is facilitated; the fixing plate 71 is connected with two anchor bars 72, and the anchor bars 72 can be welded with the embedded door bars 10.

In the case of the fixing assembly 7, the guide rail 41 of the displacement control assembly is not directly connected to the concrete, and the guide rail 41 is connected to the fixing plate 71 of the displacement control assembly, so that the concrete can be prevented from being damaged, and the displacement control assembly can be conveniently replaced.

The waterproof layer 8 is also connected to the fixing plate 71.

Further, the lower parts of the left toothed plate 2 and the right toothed plate 3 are both provided with embedded anchor bolts 9. The left toothed plate 2 and the right toothed plate 3 are both connected with the embedded anchor bolt 9 through bolts.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a broach type telescoping device, includes and strides seam well pinion rack (1), left side pinion rack (2) and right pinion rack (3), stride seam well pinion rack (1) and set up on the expansion joint, stride the relative both sides of seam well pinion rack (1) and connect left side pinion rack (2) and right pinion rack (3) respectively, left side pinion rack (2) set up on the left concrete in expansion joint, right pinion rack (3) set up on the concrete on expansion joint right side, its characterized in that: still include a plurality of displacement control mechanism (4), displacement control mechanism (4) include guide rail (41), link assembly (42) and elastic element (43), guide rail (41) set up in the expansion joint both sides, and equal swing joint link assembly (42) of guide rail (41) of expansion joint both sides, midpoint swing joint elastic element (43) of link assembly (42), toothed plate (1) in the seam is striden in elastic element (43) connection.

2. The comb-tooth type telescopic device according to claim 1, wherein: the guide rail (41) is provided with a sliding groove, and the connecting rod assembly (42) is provided with a protrusion matched with the sliding groove.

3. A comb-tooth type telescopic device as claimed in claim 1 or 2, wherein:

the connecting rod assembly (42) comprises two connecting rods (421), the two connecting rods (421) are arranged in a crossed mode, the center crossed point is movably connected with the elastic element (43), and two ends of the two connecting rods are connected to the guide rail (41).

4. A comb-tooth type telescopic device as claimed in claim 3, wherein: the central crossing point of the two connecting rods (421) is movably connected with the elastic element (43) through a rotating connecting piece.

5. A comb-tooth type telescopic device as claimed in claim 1 or 2, wherein:

the connecting rod assembly comprises a connecting rod (421), and the middle point of the connecting rod is movably connected with an elastic element (43).

6. The comb-tooth type telescopic device according to claim 1, wherein: the displacement control mechanism (4) bottom is provided with waterproof layer (8), waterproof layer (8) are connected with the both sides at expansion joint.

7. The comb-tooth type telescopic device according to claim 1, wherein: and the bottoms of the cross-seam middle toothed plate (1), the left toothed plate (2) and the right toothed plate (3) are provided with partition plates (5).

8. The comb-tooth type telescopic device according to claim 7, wherein: and the bottom of the isolation plate (5) is provided with damping rubber (6).

9. The comb-tooth type telescopic device according to claim 1, wherein: be provided with fixed subassembly (7) in the expansion joint, fixed subassembly (7) are including fixed plate (71) and dowel (72), and the both sides concrete in expansion joint all is connected with fixed plate (71), dowel (72) is connected in the concrete.

10. The comb-tooth type telescopic device according to claim 1, wherein: and the lower parts of the left toothed plate (2) and the right toothed plate (3) are provided with embedded anchor bolts (9).