CN216474483U - Life-cycle noise reduction type expansion device - Google Patents

Abstract

The utility model discloses a type of making an uproar telescoping device falls in full life, including pinion rack subassembly, drive assembly and the flexible subassembly that shifts, drive assembly set up in pinion rack subassembly below, the flexible subassembly that shifts is connected middle slip pinion rack with the supporting beam, pinion rack subassembly include tip anchor pinion rack and middle slip pinion rack, drive assembly include the displacement box, set up first support on the displacement box, set up in the shearing displacement support of supporting beam top, and set up in the supporting beam with slide between the first support. Device and conventional broach board formula and modulus formula telescoping device contrast, can realize bigger vertical shift, bigger corner, the better environmental protection of making an uproar of falling, longer life.

Description

Life-cycle noise reduction type expansion device

Technical Field

The utility model relates to a bridge technical field, especially a type of making an uproar telescoping device falls in full life.

Background

The urban rapid traffic three-dimensional net is built, the service life requirement of the highway bridge expansion device is stronger than the same service life of the bridge, the durability is stronger, and the driving comfort and noise reduction environmental protection requirements are higher.

The conventional comb plate type expansion device and the conventional module type expansion device which are commonly adopted by the expansion device of the present highway bridge have respective advantages and disadvantages: the conventional modulus type expansion device is adopted independently, except that the noise is relatively high, the urban environment-friendly noise reduction requirements cannot be met, and the displacement control spring used in the displacement system is easy to age and lose efficacy due to poor aging resistance of the polyurethane material, so that the service life of the expansion device is shortened; although the conventional comb plate type expansion device can reduce noise, the function of multi-direction large-angle deflection (the vertical displacement reaches more than 20 mm) cannot be met, and a bolt fastener for anchoring the comb plate belongs to rigid connection, so that after the expansion device is impacted by dynamic load of a vehicle, a nut is easy to loosen, and a bolt is easy to shear to cause failure, thereby shortening the service life of the expansion device; in addition, two kinds of conventional telescoping devices all use traditional rubber tape (or waterproof rubber strip) as waterproof seal part, and the rubber tape is not only ageing easily, and is easy damaged under grit blocking, extrusion moreover, leads to waterproof seal function to become invalid to telescoping device's life has been shortened.

Above-mentioned, two kinds of conventional telescoping devices have respective design defect and not enough, can't solve simultaneously promptly and fall the environmental protection of making an uproar, the great corner multidirectional shift, the advantage of performance such as long-life durable, so, adopt conventional fishback formula telescoping device or conventional modulus formula telescoping device alone, all no longer adapt to the new requirement of modern city highway bridge.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

The utility model discloses in view of the above-mentioned and/or current life fall the problem that exists among the type telescoping device of making an uproar, provided the utility model discloses.

Therefore, the utility model aims to solve the problem how to provide a life-span type of making an uproar telescoping device of falling.

In order to solve the technical problem, the utility model provides a following technical scheme: a full-life noise reduction type telescopic device comprises a toothed plate assembly, a telescopic rod assembly and a telescopic rod, wherein the toothed plate assembly comprises end anchoring toothed plates and a middle sliding toothed plate, and the middle sliding toothed plate is arranged between the two end anchoring toothed plates; the transmission assembly is arranged below the toothed plate assembly and comprises a displacement box body, a first support arranged on the displacement box body, a shearing displacement support arranged above the supporting beam and a sliding plate arranged between the supporting beam and the first support; and the flexible deflection assembly is connected with the middle sliding toothed plate and the supporting beam.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the sealing assembly is arranged below the displacement box body and comprises a baffle plate and a drain pipe.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the first support adopts a spherical support.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the shearing displacement support is a rubber support.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the transmission assembly further comprises limiting locking pieces arranged on two sides of the supporting beam.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the sliding plate is made of stainless steel plates.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the tooth profiles of the end anchoring toothed plate and the middle sliding toothed plate can adopt circular arc, triangle or trapezoid.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: and shear nails are arranged below the end anchoring toothed plates.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the flexible deflection component is vulcanized by adopting rubber and a threaded fastener or is assembled by adopting rubber and a threaded fastener.

As a life-span type of making an uproar telescoping device falls an preferred scheme, wherein: the limiting locking piece is made of a steel plate and rubber through vulcanization, or is made of rubber and the steel plate through assembly.

The utility model discloses beneficial effect does: compared with a conventional comb plate type and module type telescopic devices, the novel comb plate type and module type telescopic device can achieve larger vertical deflection, larger rotation angle, better noise reduction and environmental protection, and has longer service life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

FIG. 1 is a top view of a full life noise reducing type retractor.

FIG. 2 is a front view of a full life noise reducing type retractor.

Fig. 3 is a cross-sectional view taken at a position a-a in fig. 2 of the life span noise reduction type telescopic device.

Figure 4 is a schematic view of a toothed plate assembly of a full life noise reducing retractor.

FIG. 5 is a block diagram of the transmission assembly of the life-span noise reduction type telescopic device.

Fig. 6 is a schematic view of a first vertical displacement of a full-life noise-reducing telescopic device.

Fig. 7 is a schematic view of a second vertical displacement of a full life noise reducing type telescopic device.

Fig. 8 is a third schematic vertical displacement diagram of a life-span noise reduction type telescopic device.

FIG. 9 is a schematic diagram of a first shear displacement support of a full life noise reducing type retractor.

FIG. 10 is a schematic diagram of the second shear displacement support of the full life noise reducing type telescopic device generating shear displacement.

FIG. 11 is a schematic view of a third shear displacement support of a full life noise reducing jack assembly producing shear displacement.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1 to 11, for the first embodiment of the present invention, this embodiment provides a life-span noise reduction type expansion device, which includes a toothed plate assembly 100, a transmission assembly 200 and a flexible displacement assembly 300, wherein the transmission assembly 200 is disposed below the toothed plate assembly 100, and the flexible displacement assembly 300 is connected to the middle sliding toothed plate 102 and the supporting beam 203.

Specifically, the toothed plate assembly 100 includes end anchoring toothed plates 101 and an intermediate sliding toothed plate 102, and the intermediate sliding toothed plate 102 is disposed between the two end anchoring toothed plates 101 to form a "double-toothed meshing" design structure. Different comb tooth lengths are designed according to different displacement amounts for combined meshing. Different tooth shapes including arc, triangle, trapezoid and the like are designed, and the meshing size of tooth space is designed, so that a transverse gap between the side beam profile steel and the middle beam profile steel of a conventional modulus type telescopic device is replaced, a double-meshing transition plane is formed, and in addition, the different tooth length size designs meet the requirements of various telescopic displacement amounts of a bridge body.

The end anchoring toothed plate 101 and the middle sliding toothed plate 102 are combined into a meshing transition plane, transverse strip-shaped gaps are eliminated, and the size of the tooth length required by double-tooth-shaped meshing is shortened by one time compared with that required by single-tooth-shaped meshing under the same displacement amount, and meanwhile, tooth-shaped gaps are shortened, so that the physical noise reduction function is enhanced, and the noise reduction and environmental protection effects are met. In addition, the design structure of the upper mudguard 104 is added at the lower part of the end anchoring toothed plate 101, and is used for blocking sundries such as soil, gravel and the like between tooth plate tooth gaps, so that the function of blocking sundries is added, the sundries are effectively prevented from flowing into the sealing waterproof part and being blocked, and the mudguard 104 is made of stainless steel plates, steel plates or aluminum plates. In addition, the shear nails 103 are additionally arranged at the lower part of the end anchoring toothed plate 101, the shear nails 103 can also be replaced by anchoring steel plates or anchoring steel bars, the anchoring function of the end anchoring toothed plate 101 and concrete is enhanced, the overall anchoring performance of the telescopic device is improved, and the end anchoring toothed plate 101 and the middle sliding toothed plate 102 can be made of stainless steel plates, steel plates or aluminum plates.

The transmission assembly 200 comprises a displacement housing 201, a first support 202 arranged on the displacement housing 201, a shear displacement support 204 arranged above a support beam 203, and a slide plate 205 arranged between said support beam 203 and said first support 202. The first support 202 is a spherical support, and the shear displacement support 204 is a rubber support, i.e., the shear displacement support 204 is formed by vulcanizing a steel plate and high-strength elastic rubber together.

When the telescopic device is telescopic and rotates along with the bridge body, the displacement box body 201 drives the shear displacement support 204 to generate shear deformation and displacement, and rubber resilience is utilized to generate automatic restoring force, so that the functions of shear displacement and automatic reset are increased, and the telescopic displacement and automatic reset of the bridge body are met; the supporting cross beam 203 welded with the stainless steel sliding plate 205 and the first support 202 bear vehicle load and generate displacement, and when vehicle impact load and a bridge body generate displacement corners, the bearing deflects synchronously, namely, a multidirectional rotation displacement function is added, and multidirectional large-angle deflection motion of the bridge body is met. In addition, the limit locking pieces 206 are added at the end parts or two sides of the supporting cross beam 203, so that the supporting cross beam 203 can be effectively prevented from being emptied when the limit working condition exceeds the designed displacement. The limiting locking piece 206 is made of a steel plate and rubber through vulcanization or is made of rubber and the steel plate through assembly, and has certain elastic buffering performance.

It should be noted that the shear displacement support 204 is one of the forms of "polyurethane displacement control spring, compression support, and pressure support" different from the requirements of the conventional modular expansion device standard JT/T327-2004 highway bridge expansion device. The novel shear displacement support has the advantages that:

1. the polyurethane displacement control spring and the pressing support which are required by the standard of the conventional modulus type expansion device are replaced, namely the polyurethane displacement control and the pressing support are not required only by using the shearing displacement support, so that the number of parts required by the standard is reduced, and the purchasing cost is also reduced;

2. the shear displacement support has larger shear displacement, and can meet 350% of shear displacement, namely 3.5 times of the conventional shear displacement (100% shear deformation), and the shear displacement reaches more than 40mm as shown in fig. 9 and 11. Meanwhile, the large deformation functions of the transverse direction, the longitudinal direction and the vertical direction are improved;

3. the multi-directional large deformation performance of the shear displacement support is superior to that of a polyurethane displacement control spring and a compression support, and the shear displacement support is matched with the first support 202 to provide larger vertical displacement for the telescopic device, as shown in fig. 6-8, the vertical displacement reaches 20mm, and the maximum vertical rotation angle required by the standard JT/T723-2008 unit type multi-directional displacement comb plate bridge telescopic device is 0.05rad and about 2.87 degrees, and the vertical displacement calculated by conversion is about 17.5 mm. Therefore, the utility model discloses the vertical displacement of our side surpasss the biggest corner displacement volume that the standard required, is obviously superior to conventional broach board formula telescoping device. Just with the design structure of the function, the displacement box structure of the modular expansion device and the comb plate type expansion device can be fused into one reason.

The flexible deflection component 300 is vulcanized by rubber and a threaded fastener, or is assembled by rubber and a threaded fastener. The flexible deflection assembly 300 is located between the tooth plate assembly 100 and the displacement and transmission assembly 200, and the middle sliding tooth plate 102 and the supporting beam 203 are in anchoring connection, and it should be noted that 1 to 20 flexible deflection assemblies 300 can be provided. Each flexible deflection component 300 is designed with 1-20 sets of threaded fasteners. The flexible deflection component 300 adopts a high-strength elastic rubber body and a bolt for vulcanization, increases the flexible multidirectional deflection and elastic reset functions, thoroughly solves the traditional mode of rigid shock-resistant shearing failure of a threaded fastener, and the high-strength elastic rubber body can be made of natural rubber, chloroprene rubber, damping rubber or the mixture of two or more rubbers.

It should be explained that the design structure of the detachable modular combination is embodied in the form of a threaded fastener as the connecting assembly. However, conventional bolt and nut connection fixtures are susceptible to fatigue shearing or loosening under vehicle load impact until failure. In order to avoid the conventional impact damage, the flexible displacement assembly 300 is additionally arranged to enable the threaded fastener to generate high elastic pretightening force, and the automatic resetting and locking functions are realized, so that the conventional mode of rigid impact shearing failure of the threaded fastener is eliminated, and meanwhile, the conventional mode of welding and fixing the supporting beam and the profile steel of the conventional modulus type expansion device is replaced, so that the modular design is possible, and the service life of the expansion device is prolonged;

the bolt of conventional comb-tooth type telescoping device has been replaced to this function and the direct anchor's of concrete traditional mode, has improved the anti on-vehicle impact fatigue of anchor bolt, has promoted telescoping device life. The advantage of this kind of design form lies in having solved the unable modular design's of modulus formula telescoping device (shaped steel is not segmentation, whole root through length) defect, and has used for reference the modular design of broach board formula telescoping device, and this is also one of the reason that this is that my utility model can fuse broach board formula and modulus formula telescoping device and become possible.

Further, still include seal assembly 400, it set up in displacement box 201 below, including baffle 401 and drain pipe 402, baffle 401 can be made by section bar and corrosion resistant plate, fixes on the roof beam body through anchor bolt, forms the tye, increases simultaneously sealed waterproof function, effectively prevents rainwater, ice and snow from leaking, seeping water from the bridge roof beam body seam. In addition, the drain pipes 402 are respectively designed at the two ends of the sealing assembly 400, water on the baffle 401 is drained into the drain channel below the adjacent guardrail, and the excessive water storage of the sealing waterproof system assembly is prevented from overflowing and leaking. The structure of the section bar and the stainless steel plate replaces the traditional mode of a rubber plate, a rubber strip or a water stop belt used by a conventional telescopic device, eliminates the hidden trouble of premature aging and failure of the rubber belt, and meets the requirement that the telescopic device is free from replacement in the whole life cycle.

To sum up, the device of the utility model has the following advantages:

1. the comb plate structure of the comb plate type telescopic device and the displacement of the module type telescopic device are organically integrated with the transmission structure of the supporting beam, so that a multifunctional brand new design structure compatible with integration of the comb plate and the displacement supporting beam is developed, and compared with a conventional telescopic device, the newly designed combined structure can realize larger vertical displacement, larger rotation angle, better noise reduction and environmental protection, and long-life durability;

2. the newly designed meshing tooth profile is compared with the length and the size of the tooth profile of a conventional comb plate with the same displacement, the length is shortened by one time, and the middle sliding tooth plate spans two ends of a beam body to bear force, so that the novel combined type telescopic device belongs to a simply supported beam stress mode, eliminates the hidden danger that the overlong tooth profile of the comb plate with the large displacement is easy to break, and effectively prolongs the service life of the telescopic device;

3. the telescopic device integrates the traditional displacement control spring and the pressing support together, a novel multifunctional integrated shearing deformation, telescopic displacement and bearing load design component, namely a shearing displacement support 204 is developed, the support has the functions of ultra-strong shearing deformation and automatic reset, the function of the traditional displacement control spring is replaced, the hidden danger of premature aging and failure of polyurethane of the displacement control spring is eliminated, and the service life of the telescopic device is prolonged;

4. the telescopic device adopts a novel flexible multidirectional displacement anchoring part, is a brand new design structure for effectively connecting and anchoring the comb plate and displacement transmission, effectively utilizes high-strength elastic prestress of rubber to realize an automatic resetting and locking function, eliminates the traditional mode of rigid impact shearing failure of a threaded fastener, replaces the traditional mode of welding and fixing a supporting beam and profile steel of a conventional modulus type telescopic device, and prolongs the service life of the telescopic device. In addition, the flexible multi-directional displacement anchoring part uses a bolt connecting structure, and the comb plate component and the displacement and support transmission system can be disassembled and replaced in a modularized mode. Therefore, the quick-wear parts in the local part or the whole part of the product module can be conveniently replaced under the condition of not damaging the concrete pavement, and the maintenance is convenient;

5. the telescopic device is additionally provided with a limiting locking piece 206 at the supporting beam 203 part or two sides, so that the supporting beam 203 is effectively prevented from being over-distance emptied under the extreme working condition, and the anti-falling and limiting locking functions of the middle sliding toothed plate 102 are additionally provided;

6. the whole modular design structure that adopts different length such as 0.5 ~ 20 meters of telescoping device, the job site modularization is assembled, and it is convenient to install, has shortened the maintenance duration who blocks the traffic greatly.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a type telescoping device of making an uproar falls in life-span which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

a toothed plate assembly (100) comprising end anchoring toothed plates (101) and an intermediate sliding toothed plate (102), said intermediate sliding toothed plate (102) being arranged between the two end anchoring toothed plates (101); the transmission assembly (200) is arranged below the toothed plate assembly (100) and comprises a displacement box body (201), a first support (202) arranged on the displacement box body (201), a shearing displacement support (204) arranged above a supporting cross beam (203) and a sliding plate (205) arranged between the supporting cross beam (203) and the first support (202); and the number of the first and second groups,

a flexible indexing assembly (300) connecting the intermediate sliding toothed plate (102) and the supporting cross beam (203).

2. The full life noise reducing telescopic device according to claim 1, wherein: the device also comprises a sealing assembly (400) which is arranged below the displacement box body (201) and comprises a baffle plate (401) and a drain pipe (402).

3. A full life noise reducing telescopic device according to claim 1 or 2, wherein: the first support (202) adopts a spherical support.

4. A full-life noise reducing telescopic device according to claim 3, wherein: the shear displacement support (204) is a rubber support.

5. A full-life noise reducing telescopic device as claimed in any one of claims 1, 2 or 4, wherein: the transmission assembly (200) further comprises limit locking pieces (206) arranged on two sides of the supporting cross beam (203).

6. The full life noise reducing telescopic device according to claim 2, wherein: the sliding plate (205) is made of a stainless steel plate.

7. The full life noise reducing telescopic device according to claim 5, wherein: the tooth shapes of the end anchoring toothed plate (101) and the middle sliding toothed plate (102) can adopt circular arc, triangle or trapezoid.

8. The full life noise reducing telescopic device as claimed in claim 6 or 7, wherein: a shear nail (103) and a mudguard (104) are arranged below the end anchoring toothed plate (101).

9. The full life noise reducing retractor device of claim 8 wherein: the flexible deflection component (300) is vulcanized by adopting rubber and a threaded fastener or assembled by adopting rubber and a threaded fastener.

10. The full life noise reducing telescopic device according to claim 5, wherein: the limiting locking piece (206) is made of a steel plate and rubber through vulcanization or is made of rubber and the steel plate through assembly.

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