Die tooth combined type multidirectional displacement seamless telescopic device
Through the design of the mold-tooth composite multi-directional seamless telescopic device and the dual sealing structure, the gap problem during the installation of the bridge telescopic device is solved, and good water stopping effect is achieved, and the stability and low noise when the vehicle passes through is achieved.
Patent Information
- Application Number
- CN202420905150.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-28
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-04-28
AI Technical Summary
When installing the bridge expansion device, there are prone to gaps, which affects the water stop effect.
The mold-tooth composite multi-directional seamless telescopic device is adopted, and the first sealed water stop belt and the second sealed stop are combined by combining the left comb teeth, the middle comb teeth, the right comb teeth, the displacement control box and the displacement slip box. The water belt forms a double seal structure to ensure seamless connection.
It achieves seamless gaps during installation, ensures water stopping, reduces noise and vibration when the vehicle passes, and extends the service life of the sealing material.
Smart Images
Figure CN222455806U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge expansion devices, and in particular relates to a die-tooth composite multi-directional displacement seamless expansion device. Background Art
[0002] The bridge expansion device is installed between the abutment and the beam or between the two beam ends to adapt to the deformation caused by the temperature expansion and contraction of the bridge, concrete creep, bridge live load and other loads, and also to accommodate the smooth passage of vehicles. The waterstop on the bridge expansion device is prone to gaps during installation, which affects the waterstop effect. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a die-tooth composite multi-directional displacement seamless telescopic device which has no gap during installation and ensures a water-stopping effect.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: it includes left comb teeth, middle comb teeth and right comb teeth, and displacement control boxes and displacement sliding boxes are arranged below the left comb teeth, middle comb teeth and right comb teeth. A first sealing waterstop is arranged between the left comb teeth and the middle comb teeth, and a second sealing waterstop is arranged between the middle comb teeth and the right comb teeth. A left steel is arranged below the left comb teeth, and the cross-section of the left steel is L-shaped. The left steel is connected to the left comb teeth by a left bolt, and a first support plate is arranged on the right side of the left steel. A middle support steel is arranged below the middle comb teeth, and the cross-section of the middle support steel is rectangular. The middle support steel is connected to the middle comb teeth by a middle bolt, and a second support plate is arranged on the left side of the middle support steel. A third support plate is arranged on the right side of the middle support steel, and a right steel is arranged below the right comb teeth, and the cross-section of the right steel is L-shaped, the right steel is connected to the right comb tooth by a right bolt, a fourth supporting plate is arranged on the left side of the right steel, a first arc-shaped stainless steel plate is arranged on the first supporting plate and the second supporting plate, a first polyurethane elastomer is arranged on the first arc-shaped stainless steel plate, the bottom surface shape of the first polyurethane elastomer matches the first arc-shaped stainless steel plate, and the top surface shape of the first polyurethane elastomer matches the bottom surface of the left comb tooth and the middle comb tooth, a second arc-shaped stainless steel plate is arranged on the third supporting plate and the fourth supporting plate, a second polyurethane elastomer is arranged on the second arc-shaped stainless steel plate, the bottom surface shape of the second polyurethane elastomer matches the second arc-shaped stainless steel plate, and the top surface shape of the second polyurethane elastomer matches the bottom surface of the middle comb tooth and the right comb tooth, the left steel and the right steel are connected to the anchor plate respectively through anchor bars.
[0005] Its additional technical features are: the horizontal height of the first support plate is higher than the horizontal height of the second support plate, or the horizontal height of the first support plate is lower than the horizontal height of the second support plate, or the horizontal height of the first support plate is the same as the horizontal height of the second support plate, the horizontal height of the third support plate is higher than the horizontal height of the fourth support plate, or the horizontal height of the third support plate is lower than the horizontal height of the fourth support plate, or the horizontal height of the third support plate is the same as the horizontal height of the fourth support plate;
[0006] The bottom surface of the middle comb teeth is provided with a positioning sleeve matching the middle supporting steel.
[0007] The utility model provides a composite multi-directional displacement seamless telescopic device for mold teeth, wherein left steel, middle support steel and right steel are arranged below the left comb teeth, middle comb teeth and right comb teeth, a first support plate, a second support plate, a first arc-shaped stainless steel plate and a first polyurethane elastomer are arranged between the left steel and the middle support steel, and a third support plate, a fourth support plate, a second arc-shaped stainless steel plate and a second polyurethane elastomer are arranged between the middle support steel and the right steel. The first arc-shaped stainless steel plate and the second arc-shaped stainless steel plate have strong corrosion resistance, and the first arc-shaped stainless steel plate and the second arc-shaped stainless steel provide upward support force to the first polyurethane elastomer and the second polyurethane elastomer, so that the compression of the first polyurethane elastomer and the second polyurethane elastomer is limited. At the same time, the first arc-shaped stainless steel plate and the second arc-shaped stainless steel plate can also reduce the vibration of the first polyurethane elastomer and the second polyurethane elastomer when a vehicle passes, thereby increasing the vibration fatigue life of the first polyurethane elastomer and the second polyurethane elastomer. The first polyurethane elastomer is tightly bonded to the left steel and the middle support steel, and is not bonded to the first arc-shaped stainless steel plate. The top of the first polyurethane elastomer is flush with the top of the left steel and the middle support steel, and a seamless connection is formed between the left steel and the middle support steel. The second polyurethane elastomer is tightly bonded to the middle support steel and the right steel, and is not bonded to the second arc-shaped stainless steel plate. The top of the second polyurethane elastomer is flush with the top of the middle support steel and the right steel, and a seamless connection is formed between the middle support steel and the right steel. In this way, the entire telescopic device forms a seamless connection, and the seamless telescopic device has the function of preventing road dust and gravel from entering the expansion joint. At the same time, the first polyurethane elastomer and the first sealing waterstop, the second polyurethane elastomer and the second sealing waterstop respectively form double seals, which can further improve the reliability of waterproofing and dustproofing, ensure the water-stopping effect, and make the vehicle pass through the telescopic device more smoothly and with lower noise. According to the needs, the horizontal height of the first support plate is higher than that of the second support plate, or the horizontal height of the first support plate is lower than that of the second support plate, or the horizontal height of the first support plate is the same as that of the second support plate, or the horizontal height of the third support plate is higher than that of the fourth support plate, or the horizontal height of the third support plate is lower than that of the fourth support plate, or the horizontal height of the third support plate is the same as that of the fourth support plate. The bottom surface of the middle comb teeth is provided with a positioning sleeve matching the middle support steel, which makes installation more convenient. The displacement control box and the displacement sliding box are existing technologies that have been used for many years and will not be described in detail here.
[0008] The utility model provides a modular composite multi-directional displacement seamless telescopic device, which integrates a comb-tooth telescopic device and a modular telescopic device. It has the stability of a vehicle passing through a comb-tooth telescopic device, and also has the three-way displacement function of a modular telescopic device. The left and right steels are angle steels, and anchor bars and anchor plates are arranged in the opening direction of the angle steels to strengthen the angle steels. The production process of the angle steels is simple, the production cost is low, the amount of steel used is reduced, and the cost of the telescopic device is reduced. The seamless telescopic device reduces the impact force of the tires on the telescopic device when the vehicle passes through the telescopic device, reduces the wear of the tires, and reduces the damage to the expansion joint and the concrete at the end of the beam caused by the impact of the tires. The vehicle passes through the telescopic device more smoothly and with less noise. The left bolt passes through the left comb teeth from top to bottom and is connected to the threaded sleeve below, the middle bolt passes through the middle comb teeth from top to bottom and is connected to the threaded sleeve below, and the right bolt passes through the right comb teeth from top to bottom and is connected to the threaded sleeve below. In this way, the left comb teeth, middle comb teeth, and right comb teeth adopt an inverted form with the bolts on top and the threaded sleeves on the bottom. Compared with the traditional single nut fastening method, the connection length of the effective thread is increased, so that the anchoring is more reliable and the phenomenon of bolt falling off and causing damage to the expansion joint is avoided. The modularization of the left comb teeth, middle comb teeth, and right comb teeth realizes the rapid disassembly and replacement of the comb plate and the rapid maintenance of the internal components of the expansion joint. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 This is a structural schematic diagram of a die-tooth composite multi-directional displacement seamless telescopic device of the utility model;
[0010] Figure 2 for Figure 1 AA cross-section diagram;
[0011] Figure 3 for Figure 1 BB cross-section diagram;
[0012] Figure 4 for Figure 1 CC cross-section diagram;
[0013] Figure 5 for Figure 1 DD cross-sectional view. DETAILED DESCRIPTION
[0014] The specific structure of a die-tooth composite multi-directional displacement seamless telescopic device provided by the utility model is further described in detail below in conjunction with the accompanying drawings.
[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5As shown, the utility model is a mold-tooth composite multi-directional displacement seamless telescopic device comprising a left comb tooth 1, a middle comb tooth 2, and a right comb tooth 3. A displacement control box 4 and a displacement sliding box 5 are arranged below the left comb tooth 1, the middle comb tooth 2, and the right comb tooth 3. A left steel 6 is arranged below the left comb tooth. The cross section of the left steel 6 is L-shaped. The left steel 6 is connected to the left comb tooth 1 through a left bolt 7. A first supporting plate 8 is arranged on the right side of the left steel 6. A middle supporting steel 9 is arranged below the middle comb tooth 2. The cross section of the middle supporting steel 9 is rectangular. The middle supporting steel 9 is connected to the left comb tooth 1 through a left bolt 7. The middle bolt 10 is connected to the middle comb tooth 2, a second support plate 11 is provided on the left side of the middle support steel 9, a third support plate 12 is provided on the right side of the middle support steel 9, a positioning sleeve 13 matching the middle support steel 9 is provided on the bottom surface of the middle comb tooth 2, a right steel 14 is provided below the right comb tooth 3, the cross section of the right steel 14 is L-shaped, the right steel 14 is connected to the right comb tooth 3 through a right bolt 15, a fourth support plate 16 is provided on the left side of the right steel 14, and a first arc-shaped stainless steel is provided on the first support plate 8 and the second support plate 11. The first curved stainless steel plate 17 is provided with a first polyurethane elastomer 18 on the top, the bottom surface shape of the first polyurethane elastomer 18 matches the first curved stainless steel plate 17, the top surface shape of the first polyurethane elastomer 18 matches the bottom surface of the left comb tooth 1 and the middle comb tooth 2, the third support plate 12 and the fourth support plate 16 are provided with a second curved stainless steel plate 19 on the top, the second curved stainless steel plate 19 is provided with a second polyurethane elastomer 20 on the top, the bottom surface shape of the second polyurethane elastomer 20 matches the bottom surface of the second curved stainless steel plate 19, and the bottom surface shape of the second polyurethane elastomer 20 matches the bottom surface of the second curved stainless steel plate 19. The stainless steel plate 19 matches, the top surface shape of the second polyurethane elastomer 20 matches the bottom surface of the middle comb tooth 2 and the right comb tooth 3, the left steel 6 and the right steel 14 are respectively connected to the anchor plate 22 through the anchor rib 21, the horizontal height of the first support plate 8 is the same as the horizontal height of the second support plate 11, the horizontal height of the third support plate 12 is the same as the horizontal height of the fourth support plate 16, a first sealing waterstop 23 is arranged between the left comb tooth 1 and the middle comb tooth 2, and a second sealing waterstop 24 is arranged between the middle comb tooth 2 and the right comb tooth 3.
[0016] The utility model provides a mold-tooth composite multi-directional displacement seamless telescopic device, wherein a left steel 6, a middle support steel 9, and a right steel 14 are arranged below the left comb teeth 1, the middle comb teeth 2, and the right comb teeth 3; a first support plate 8, a second support plate 11, a first arc-shaped stainless steel plate 17, and a first polyurethane elastomer 18 are arranged between the left steel 6 and the middle support steel 9; a third support plate 12, a fourth support plate 16, a second arc-shaped stainless steel plate 19, and a second polyurethane elastomer 20 are arranged between the middle support steel 9 and the right steel 14. The first arc-shaped stainless steel plate 17 and the second arc-shaped stainless steel plate 19 have strong corrosion resistance. The first arc-shaped stainless steel plate 17 and the second arc-shaped stainless steel plate 19 provide upward support force to the first polyurethane elastomer 18 and the second polyurethane elastomer 20, so that the compression of the first polyurethane elastomer 18 and the second polyurethane elastomer 20 is limited. At the same time, the first arc-shaped stainless steel plate 17 and the second arc-shaped stainless steel plate 19 can also reduce the vibration of the first polyurethane elastomer 18 and the second polyurethane elastomer 20 when the vehicle passes, thereby increasing the vibration fatigue life of the first polyurethane elastomer 18 and the second polyurethane elastomer 20. The first polyurethane elastomer 18 is tightly bonded to the left steel 6 and the middle support steel 9, and is not bonded to the first arc-shaped stainless steel plate 17. The top of the first polyurethane elastomer 18 is flush with the top of the left steel 6 and the middle support steel 9, and a seamless connection is formed between the left steel and the middle support steel 9. The second polyurethane elastomer 20 is tightly bonded to the middle support steel 9 and the right steel 14, and is not bonded to the second arc-shaped stainless steel plate 19. The top of the second polyurethane elastomer 20 is flush with the top of the middle support steel 9 and the right steel 14, and a seamless connection is formed between the middle support steel 9 and the right steel 14. In this way, the entire telescopic device forms a seamless connection, and the seamless telescopic device has the function of preventing road dust and gravel from entering the expansion joint. At the same time, the first polyurethane elastomer 18 and the first sealing waterstop 23, the second polyurethane elastomer 20 and the second sealing waterstop 24 respectively form double seals, which can further improve the reliability of waterproofing and dustproofing, ensure the water-stopping effect, and make the vehicle pass through the telescopic device more smoothly with lower noise. According to the needs, the horizontal height of the first support plate 8 is higher than the horizontal height of the second support plate 11, or the horizontal height of the first support plate 8 is lower than the horizontal height of the second support plate 11, or the horizontal height of the first support plate 8 is the same as the horizontal height of the second support plate 11, or the horizontal height of the third support plate 12 is higher than the horizontal height of the fourth support plate 16, or the horizontal height of the third support plate 12 is lower than the horizontal height of the fourth support plate 16, or the horizontal height of the third support plate 12 is the same as the horizontal height of the fourth support plate 16. The bottom surface of the middle comb teeth 2 is provided with a positioning sleeve 13 matching the middle support steel 9, which is more convenient to install. The displacement control box 4 and the displacement sliding box 5 are existing technologies that have been used for many years and will not be described in detail here.
[0017] The utility model provides a modular composite multi-directional displacement seamless telescopic device, which integrates a comb-tooth telescopic device and a modular telescopic device. It has the stability of a vehicle passing through a comb-tooth telescopic device, and also has the three-way displacement function of a modular telescopic device. The left steel 6 and the right steel 14 are angle steels, and anchor ribs 21 and anchor plates 22 are arranged in the opening direction of the angle steels to strengthen the angle steels. The production process of the angle steels is simple, the production cost is low, the amount of steel used is reduced, and the cost of the telescopic device is reduced. The seamless telescopic device reduces the impact force of the tires on the telescopic device when the vehicle passes through the telescopic device, reduces the wear of the tires, and reduces the damage to the expansion joint and the concrete at the end of the beam caused by the impact of the tires. The vehicle passes through the telescopic device more smoothly and with less noise. The left bolt 7 passes through the left comb tooth 1 from top to bottom and is connected to the threaded sleeve below, the middle bolt 10 passes through the middle comb tooth 2 from top to bottom and is connected to the threaded sleeve below, and the right bolt 15 passes through the right comb tooth 3 from top to bottom and is connected to the threaded sleeve below. In this way, the left comb tooth 1, the middle comb tooth 2, and the right comb tooth 3 are in an inverted form with the bolt on top and the threaded sleeve on the bottom. Compared with the traditional single nut fastening method, the connection length of the effective thread is increased, so that the anchoring is more reliable and the phenomenon of bolt falling off and causing damage to the expansion joint is avoided. The modularization of the left comb tooth 1, the middle comb tooth 2, and the right comb tooth 3 realizes the rapid disassembly and replacement of the comb plate and the rapid maintenance of the internal components of the expansion joint.
[0018] The mold-tooth composite multi-directional displacement seamless telescopic device provided by the utility model is not limited to the above structure. Any modifications, equivalent replacements and improvements made on the basis of the utility model should be included in the protection scope of the utility model.
Claims
1. A mold-tooth composite multi-directional displacement seamless telescopic device, comprising left comb teeth, middle comb teeth, and right comb teeth, wherein a displacement control box and a displacement sliding box are arranged below the left comb teeth, the middle comb teeth, and the right comb teeth, a first sealing water stop is arranged between the left comb teeth and the middle comb teeth, and a second sealing water stop is arranged between the middle comb teeth and the right comb teeth, characterized in that: A left steel is arranged below the left comb tooth, the cross section of the left steel is L-shaped, the left steel is connected to the left comb tooth by a left bolt, a first support plate is arranged on the right side of the left steel, a middle support steel is arranged below the middle comb tooth, the cross section of the middle support steel is rectangular, the middle support steel is connected to the middle comb tooth by a middle bolt, a second support plate is arranged on the left side of the middle support steel, a third support plate is arranged on the right side of the middle support steel, a right steel is arranged below the right comb tooth, the cross section of the right steel is L-shaped, the right steel is connected to the right comb tooth by a right bolt, a fourth support plate is arranged on the left side of the right steel, and a first arc is arranged on the first support plate and the second support plate. A first curved stainless steel plate is provided on the top of the first curved stainless steel plate, the bottom surface shape of the first polyurethane elastomer matches the first curved stainless steel plate, and the top surface shape of the first polyurethane elastomer matches the bottom surfaces of the left comb teeth and the middle comb teeth; a second curved stainless steel plate is provided on the top of the third support plate and the fourth support plate, a second curved stainless steel plate is provided on the top of the second curved stainless steel plate, the bottom surface shape of the second polyurethane elastomer matches the second curved stainless steel plate, and the top surface shape of the second polyurethane elastomer matches the bottom surfaces of the middle comb teeth and the right comb teeth; the left steel and the right steel are connected to the anchor plates respectively through anchor ribs.
2. The die-tooth composite multi-directional displacement seamless telescopic device according to claim 1, characterized in that: The horizontal height of the first support plate is higher than the horizontal height of the second support plate, or the horizontal height of the first support plate is lower than the horizontal height of the second support plate, or the horizontal height of the first support plate is the same as the horizontal height of the second support plate, and the horizontal height of the third support plate is higher than the horizontal height of the fourth support plate, or the horizontal height of the third support plate is lower than the horizontal height of the fourth support plate, or the horizontal height of the third support plate is the same as the horizontal height of the fourth support plate.
3. The die-tooth composite multi-directional displacement seamless telescopic device according to claim 1, characterized in that: The bottom surface of the middle comb teeth is provided with a positioning sleeve matching the middle supporting steel.