Grid type telescopic device
The design of the grid-type expansion joint solves the problem of the comb-tooth plate expansion joint not being able to be fully connected, realizing the integrity and comfort of the bridge, having a self-cleaning function, avoiding bumps and noise, and enhancing the stability of the bridge.
Patent Information
- Application Number
- CN202520195978.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-07
AI Technical Summary
The existing comb-tooth plate expansion joints cannot fully connect two beams, resulting in poor overall bridge integrity, easy to cause bumps and noise, and the gaps are prone to accumulating garbage, which affects the bridge structure.
The bridge adopts a grid-type expansion joint device, which is connected to the beam through a plate-shaped integrated expansion panel. Multiple expansion ribs, narrower at the top and wider at the bottom, are set on the panel to form a grid structure. The joint extends through the thickness of the panel. Combined with the expansion joint cover plate and waterproof seals, the bridge achieves integrity and self-cleaning function.
It improves the overall integrity of the bridge, reduces bumps and noise, has self-cleaning capabilities, prevents garbage accumulation, and ensures the stability of the bridge and the comfort of passengers.
Smart Images
Figure CN223824002U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge structure technical field especially is related to a net format expansion device. BACKGROUND
[0002] Bridge expansion joint is an important accessory structure of bridge, mainly to meet the requirement of bridge deformation caused by stress due to climate environment and other factors, directly contact with high-speed driving vehicles, once there is a problem, it will seriously affect the driving safety. In recent years, the comb tooth plate expansion joint is widely used, but the comb tooth plate expansion joint is staggered tooth structure, so that the two beam plates cannot be directly connected, thereby reducing the integrity and stability of the bridge as a whole, and the vertical gap also makes the vehicle prone to large bump during driving, affecting the riding experience of passengers in the vehicle, and generating large noise.
[0003] Secondly, the comb tooth position has a large gap, so that highway garbage is easy to accumulate in the gap, and the bridge damage problem caused by the accumulation of highway garbage and the failure to clean in time is prone to occur in the long-term use process. SUMMARY
[0004] The utility model discloses a net format expansion device, solve the technical problem that the existing comb tooth structure cannot completely connect two beam plates, and the bridge as a whole is poor and prone to bump and large noise. The preferred technical solutions in the many technical solutions provided by the utility model can produce many technical effects, which are described in detail below.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:
[0006] The net format expansion device provided by the utility model comprises a plate-shaped integrated expansion panel, the two sides of the expansion panel are connected with the beam plate parts on the two sides of the expansion joint respectively, a plurality of expansion tendons are arranged on the expansion panel, the expansion tendons form a net format structure, the cross section of the expansion tendon is in the form of a trapezoidal structure with a narrow upper part and a wide lower part, and intermittent gaps are formed between the expansion tendons and penetrate the thickness direction of the expansion panel.
[0007] Preferably, the width of the expansion tendon close to the upper end face of the expansion panel is smaller than the width of the expansion tendon close to the lower end face of the expansion panel, the cross section of the expansion tendon is in the form of a right trapezoidal expansion tendon with a narrow upper part and a wide lower part, the width of the gap close to the upper end face of the expansion panel is greater than the width of the gap close to the lower end face of the expansion panel, and the cross section of the gap is in the form of an inverted trapezoidal gap with a wide upper part and a narrow lower part.
[0008] Preferably, the telescopic rib comprises a first rib and a second rib, the first rib and the second rib are perpendicular to each other, the number of the first rib is multiple and the first ribs are arranged in parallel to each other, the number of the second rib is multiple and the second ribs are arranged between two adjacent first ribs or between the first rib and the side plate of the telescopic panel.
[0009] Preferably, the slit is a strip-shaped hole, and two adjacent rows of the strip-shaped holes are arranged in staggered manner.
[0010] Preferably, the telescopic panel is provided with an anchoring plate at one end of the bottom for connecting with the pre-buried anchoring steel bars of the beam plate, and is provided with a connecting part at the other end for connecting with another beam plate.
[0011] Preferably, the telescopic panel is provided with a telescopic cover joint support plate at the bottom, one end of the telescopic cover joint support plate is connected with the anchoring plate, and the other end of the telescopic cover joint support plate is connected with the connecting part.
[0012] Preferably, the telescopic cover joint support plate is provided with a stainless steel sliding plate at the upper end and the lower end.
[0013] Preferably, the connecting part comprises a telescopic displacement box and a connecting body, one end of the telescopic displacement box is provided with an opening, the telescopic cover joint support plate is arranged in the telescopic displacement box through the opening, and the telescopic panel, the telescopic cover joint support plate and the telescopic displacement box are connected through the connecting body.
[0014] Preferably, the telescopic displacement box comprises a lower support plate, an upper cover plate and a rear baffle, the lower support plate, the upper cover plate and the rear baffle surround a groove with an open side, the telescopic cover joint support plate extends into the groove, the length of the lower support plate is longer than the length of the upper cover plate, the connecting body comprises an anchoring bolt and a fastening nut, the anchoring bolt is sequentially embedded in the telescopic panel, the telescopic cover joint support plate and the lower support plate, the fastening nut is arranged on the anchoring bolt, and the fastening nut is used for fastening and compressing the gap between the telescopic cover joint support plate and the lower support plate.
[0015] Preferably, waterproof sealing members are arranged between the telescopic panel and the stainless steel sliding plate and between the stainless steel sliding plate and the lower support plate, and the waterproof sealing members are arranged close to the connecting part.
[0016] The above technical scheme is adopted in the application, and the following beneficial effects are achieved:
[0017] The net format expansion device comprises a plate-shaped integrated expansion panel, the two sides of the expansion panel are connected with the beam plate parts on both sides of the expansion joint respectively, and a single expansion bar or multiple expansion bars are arranged on the expansion panel to form a joint penetrating the thickness direction of the expansion panel, so that the expansion bar and the joint ensure the expansion of the expansion panel, meet the expansion requirement of the expansion joint, the integrated expansion panel ensures the integrity of the bridge, and bumping and large noise are avoided.
[0018] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory and are not restrictive of the application. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.
[0020] Figure 1 is a schematic diagram of the net format expansion device provided by the embodiment of the present application;
[0021] Figure 2 is a schematic diagram of the net format expansion device in a contracted state provided by the embodiment of the present application;
[0022] Figure 3 is a schematic diagram of the net format expansion device in a stretched state provided by the embodiment of the present application;
[0023] Figure 4 is a schematic diagram of the single-bar net format expansion device provided by the embodiment of the present application;
[0024] Figure 5 is a schematic diagram of the single-bar net format expansion device in a contracted state provided by the embodiment of the present application;
[0025] Figure 6 is a schematic diagram of the single-bar net format expansion device in a stretched state provided by the embodiment of the present application;
[0026] Figure 7 is a schematic diagram of the expansion bar cross-section structure provided by the embodiment of the present application;
[0027] Figure 8 is a schematic diagram of the joint cross-section structure provided by the embodiment of the present application;
[0028] Figure 9 is a schematic diagram of the overall structure of the net format expansion device provided by the embodiment of the present application.
[0029] Figure 1, the expansion panel; 2, the expansion rib; 3, the seam body; 4, the first rib body; 5, the second rib body; 6, the anchor plate; 7, the expansion cover seam support plate; 8, the stainless steel sliding plate; 9, the lower support plate; 10, the upper cover plate; 11, the backstop; 12, the anchor bolt; 13, the fastening nut; 14, the waterproof seal; 15, the polytetrafluoroethylene sliding plate groove position; 16, the polytetrafluoroethylene sliding plate installation. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the utility model clearer, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope protected by the utility model.
[0031] The specific embodiment of the utility model provides a kind of net format expansion device including plate-shaped integral expansion panel 1, the beam plate part of two sides of expansion joint is connected respectively with the two sides of expansion panel 1, the beam plate of two sides is connected by expansion panel 1, so that the direct connection of beam plate, so it can guarantee the integrity of bridge, and expansion panel 1 is provided with single or multiple expansion rib 2, when multiple, multiple expansion rib 2 forms net format structure, and the section of expansion rib 2 is narrow on top and wide on bottom to drive trapezoidal structure, seam body 3 that is formed in the thickness direction of expansion panel 1 between expansion rib 2, so by the way of arranging single or multiple expansion rib 2 on expansion panel 1 and forming seam body 3, so that there is no larger gap on expansion panel 1 like existing comb plate expansion joint, so as to ensure that there is no larger bump to affect the riding experience of passenger in vehicle, and larger noise cannot be generated;And seam body 3 makes expansion panel 1 guarantee basic expansion function.
[0032] In the specific embodiment of the present application, expansion rib 2 is designed to be narrow on top and wide on bottom, and in the actual installation state of expansion panel 1, the upper end face is the end face of the bearing vehicle, and the lower end face is the end of the abutment expansion cover seam support plate 7, so the width of expansion rib 2 close to the upper end face of expansion panel 1 is smaller than the width of expansion rib 2 close to the lower end face of expansion panel 1, and specifically, the section of expansion rib 2 can be a right trapezoidal expansion rib with narrow top and wide bottom, so that seam body 3 can form a structure with upper opening larger than lower opening, i.e. the width of seam body 3 close to the upper end face of expansion panel 1 is larger than the width of seam body 3 close to the lower end face of expansion panel 1, i.e. a cross-section with inverted trapezoidal gap with wide top and narrow bottom is formed, and the setting mode of seam body 3 with wide top and narrow bottom can store garbage in seam body 3, and in the case of expansion panel 1 contraction caused by beam plate elongation in hot summer, the stored garbage is squeezed out partially, so as to play a certain self-cleaning effect.
[0033] In some embodiments, the stretchable rib 2 comprises a first rib 4 and a second rib 5, the first rib 4 and the second rib 5 are perpendicular to each other, the first rib 4 is in a plurality and arranged in parallel to each other, and the second rib 5 is in a plurality and arranged between two adjacent first ribs 4 or between a first rib 4 and a side plate of the stretchable panel 1. As shown in the drawings, the first rib 4 can be arranged along the length direction of the stretchable panel 1, and the second rib 5 is arranged along the width direction of the stretchable panel 1. The second rib 5 is arranged at equal intervals between two adjacent first ribs 4 or between a first rib 4 and a side plate of the stretchable panel 1, so that an array of slits 3 can be formed on the stretchable panel 1. The second rib 5 is smoothly connected to the first rib 4 at both ends. The stretchable panel 1 in the present application can be formed by cutting the slits 3 from a whole metal plate. Figure 1
[0034] In some embodiments, the slit 3 is a strip-shaped hole, and two adjacent rows of strip-shaped holes are arranged in an interlaced manner, i.e., the strip-shaped holes on both sides of the first rib 4 are arranged in an interlaced manner, and the second ribs 5 on both sides of the first rib 4 are interlaced. In this way, the stretching and contraction effect of the slit 3 can be ensured.
[0035] In some embodiments, the stretchable panel 1 is provided with an anchor plate 6 at one end of the bottom, and the anchor plate 6 is connected to the embedded anchor steel bars of the beam plate on one side, so as to realize the fixed connection of one end of the stretchable panel 1. The other end of the stretchable panel 1 is provided with a connecting part connected to another beam plate.
[0036] In some embodiments, the stretchable panel 1 is provided with a stretchable cover joint support plate 7 at the bottom, and the stretchable cover joint support plate 7 is connected to the anchor plate 6 at one end and connected to the connecting part at the other end.
[0037] Specifically, the connecting part can comprise a stretchable displacement box and a connecting body. The stretchable displacement box is used to ensure the stretchability of the internal components. The stretchable displacement box has an opening at one end, and the stretchable cover joint support plate 7 is arranged in the stretchable displacement box through the opening. The stretchable panel 1, the stretchable cover joint support plate 7 and the stretchable displacement box are connected through the connecting body. In this way, when the stretchable panel 1 is stretched or contracted to adapt to the beam plates on both sides, the one end of the stretchable cover joint support plate 7 can be moved in the stretchable displacement box.
[0038] In some embodiments, the stretchable cover joint support plate 7 is provided with a stainless steel sliding plate 8 at the upper end and the lower end, which plays a certain supporting and sliding role.
[0039] In some embodiments, the telescopic displacement box comprises a lower supporting plate 9, an upper cover plate 10 and a rear baffle 11, the lower supporting plate 9, the upper cover plate 10 and the rear baffle 11 surround a groove with one side opening, the telescopic cover joint supporting plate 7 extends into the groove, the length of the lower supporting plate 9 is longer than the length of the upper cover plate 10, the top of the upper cover plate 10 abuts against the anti-crack steel mesh of the other beam plate, the connecting body comprises an anchor bolt 12 and a fastening nut 13, the anchor bolt 12 passes through the telescopic panel 1, the upper layer of stainless steel sliding plate 8, the telescopic cover joint supporting plate 7, the lower layer of stainless steel sliding plate 8 and the lower supporting plate 9 in sequence, the fastening nut 13 is arranged on the anchor bolt 12 and is fastened through the anchor bolt 12, and specifically, a groove can be arranged at one end of the telescopic panel 1 close to the connecting part, so that the anchor bolt 12 is arranged in the groove and abuts against the bottom wall of the groove. The fastening nut 13 is used for fastening and compressing the gap between the telescopic cover joint supporting plate 7 and the lower supporting plate 9.
[0040] In some embodiments, waterproof seals 14 are arranged between the telescopic panel 1 and the stainless steel sliding plate 8 and on both sides of the lower supporting plate 9, the upper side of the lower supporting plate 9 is connected with the stainless steel sliding plate 8 through the waterproof seals 14, the waterproof seals 14 are arranged close to the connecting part, and the waterproof seals 14 are arranged along the length direction of the telescopic panel 1. In this way, it can be ensured that rainwater entering the telescopic panel 1 cannot enter the connecting part and then infiltrate into the bridge body.
[0041] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", "some examples" and the like mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the features of different embodiments or examples described in the specification and the features of different embodiments or examples.
[0042] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A webbing retractor, characterized by, The expansion panel is plate-shaped and integral, and is connected to beam plate portions on both sides of the expansion joint. A plurality of expansion ribs are arranged on the expansion panel, and form a mesh structure. The expansion ribs have a trapezoidal structure with a narrow upper portion and a wide lower portion. The expansion ribs form intermittent slits that extend through the thickness of the expansion panel.
2. The webbing retractor according to claim 1, wherein The width of the expansion rib near the upper end of the expansion panel is less than the width of the expansion rib near the lower end of the expansion panel. The expansion rib has a right trapezoidal structure with a narrow upper portion and a wide lower portion. The width of the slit near the upper end of the expansion panel is greater than the width of the slit near the lower end of the expansion panel. The slit has an inverted trapezoidal structure with a wide upper portion and a narrow lower portion.
3. The webbing retractor according to claim 1, wherein The expansion rib includes a first rib and a second rib. The first rib is perpendicular to the second rib. A plurality of first ribs are parallel to each other. A plurality of second ribs are evenly distributed between adjacent first ribs or between a first rib and a side plate of the expansion panel.
4. The webbing retractor according to claim 3, wherein The slit is a strip-shaped hole. Adjacent rows of strip-shaped holes are staggered.
5. The webbing retractor according to claim 1, wherein An anchor plate is arranged at the bottom of one end of the expansion panel, and is used to connect to a pre-buried anchoring steel bar of a beam plate. A connecting portion is arranged at the other end of the expansion panel, and is used to connect to another beam plate.
6. The webbing retractor according to claim 5, wherein A expansion cover joint support plate is arranged at the bottom of the expansion panel. One end of the expansion cover joint support plate is connected to the anchor plate, and the other end of the expansion cover joint support plate is connected to the connecting portion.
7. The web expander of claim 6, wherein, Stainless steel sliding plates are arranged at the upper end and the lower end of the expansion cover joint support plate.
8. The webbing retractor according to claim 7, wherein The connecting portion includes an expansion displacement box and a connecting body. The expansion displacement box has an opening at one end. The expansion cover joint support plate is arranged in the expansion displacement box through the opening. The expansion panel, the expansion cover joint support plate, and the expansion displacement box are connected through the connecting body.
9. The webbing retractor according to claim 8, wherein The expansion displacement box includes a lower support plate, an upper cover plate, and a rear baffle. The lower support plate, the upper cover plate, and the rear baffle surround a groove with an open side. The expansion cover joint support plate is arranged in the groove. The length of the lower support plate is greater than the length of the upper cover plate. The connecting body includes an anchoring bolt and a fastening nut. The anchoring bolt is sequentially embedded in the expansion panel, the expansion cover joint support plate, and the lower support plate. The fastening nut is arranged on the anchoring bolt, and is used to tightly press the gap between the expansion cover joint support plate and the lower support plate.
10. The webbing retractor according to claim 9, wherein Waterproof sealing members are arranged between the expansion panel and the stainless steel sliding plates, and on both sides of the lower support plate. The waterproof sealing members are arranged near the connecting portion.