Integral profile steel for manufacturing bridge expansion device
By using integral steel rolling and auxiliary support structures, the problems of difficult production and complex processing of bridge expansion joints have been solved, achieving simple production and efficient cutting, and providing reliable support and durability.
Patent Information
- Application Number
- CN202422554724.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-02
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2035-07-02
AI Technical Summary
The existing steel profiles for bridge expansion joints are difficult to produce, have long construction periods, are not easy to manufacture, are difficult to process, and lack reliable support structures.
It is formed by rolling an integral steel profile in one go, including an upper plate, vertical plate, lower plate and anti-slip groove. The auxiliary support part is laser cut and stabilized by the support base plate and support vertical ribs, and fixed by bolts.
It achieves simple production and convenient processing, ensures cutting accuracy, provides a reliable support structure, and improves the durability and stability of bridge expansion joints.
Smart Images

Figure CN223535577U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge expansion joints, and in particular to an integral steel profile used in the manufacture of bridge expansion joints. Background Technology
[0002] The existing steel profiles are all welded, which makes production difficult, time-consuming, and difficult to manufacture.
[0003] Currently, there is a type of integrated steel expansion joint arrangement with a steel plate at the bottom. However, the stainless steel plates below the comb plates on both sides of the expansion joint also need to be arranged vertically and crosswise above the expansion joint, which is currently very difficult to process.
[0004] Furthermore, the integral steel section must be cut into the shape of comb teeth using a laser cutting machine.
[0005] With current technology, fixing it is very difficult, sometimes requiring manual support, which is inconvenient and not very accurate.
[0006] On September 12, 2024, a search was conducted in the China Patent Publication Database using "section steel and integral and rolling and anti-slip groove" as the abstract keywords and the option to allow synonym expansion was selected. No relevant literature was found.
[0007] On September 12, 2024, an abstract search was conducted on CNKI (China National Knowledge Infrastructure) for the keywords "section steel and integral and rolling and anti-slip groove", but no relevant literature was found.
[0008] On September 12, 2024, a search was conducted on the website of the United States Patent and Trademark Office for the term "Shaped steel with whole with Roll with Anti-skidchute", but no relevant literature was found; the search URL is https: / / ppubs.uspto.gov / pubwebapp / .
[0009] On September 12, 2024, a search was conducted on the Korean Patent Office website for the term "Shaped steel and whole and Roll and Anti-skid chute", but no relevant literature was found; the search URL is http: / / eng.kipris.or.kr / enghome / main.jsp.
[0010] On September 12, 2024, a search was conducted on WIPO's website https: / / patentscope2.wipo.int / for the term "Shaped steel and whole and Roll and Anti-skid chute"; no relevant literature was found.
[0011] On September 12, 2024, a search was conducted on the website of the Japan Patent Office (https: / / www.j-platpat.inpit.go.jp / ) for the term "Shaped steel and whole and Roll and Anti-skid chute," but no relevant literature was found.
[0012] It is completely different from the concept of this patent.
[0013] In other words, the shortcomings of the existing technology are: 1. Difficult to produce, long construction period, and difficult to manufacture; 2. Very difficult to process; 3. No reliable support structure. Utility Model Content
[0014] The purpose of this utility model is to provide a more effective integral steel profile for manufacturing bridge expansion joints. Specific objectives are detailed in the specific implementation section, which describes several substantial technical effects.
[0015] To achieve the above objectives, the present invention adopts the following technical solution:
[0016] An integral steel profile for manufacturing bridge expansion joints, characterized in that,
[0017] The profile is rolled out in one piece;
[0018] The integral steel profile includes an upper plate 1, a vertical plate 2, and a lower plate 3; the upper plate 1 on the surface of the profile has more than 0 anti-slip grooves;
[0019] The protruding portion 11 of the profile plate is the portion of the upper plate 1 that extends backward. The length positional relationship between the protruding portion 11 of the profile plate and the protruding portion 31 of the lower plate is either equal or unequal.
[0020] The upper plate 1 has a sloping structure, that is, the height of the upper plate 1 gradually decreases from the protruding part 11 of the profile plate to the other side.
[0021] A further technical solution of this utility model is that a profile step 12 is arranged at the root of the lower surface of the upper plate 1.
[0022] A further technical solution of this utility model is that the end of the upper plate 1 is an inclined surface.
[0023] A further technical solution of this utility model is that a stainless steel sliding plate is welded to the lower surface of the profile step 12.
[0024] A further technical solution of this utility model is that it also includes an auxiliary support part that cooperates with the integral steel when laser cutting the integral steel;
[0025] The auxiliary support includes a support base plate 41, on which multiple sets of vertical support ribs 42 are arranged, and the vertical support ribs 42 can support the lower surface of the upper plate 1.
[0026] The supporting base plate 41 is formed by the inner vertical plate and the outer vertical plate 44 to form a receiving gap 43, which can accommodate the profile plate protrusion 11 and the lower plate protrusion 31.
[0027] Bolt holes are also provided on the outer panel 44, and the bolts 45 can be pressed and fixed after passing through the bolt holes.
[0028] The present invention, employing the above technical solution, has the following beneficial effects compared to the prior art: Addressing the shortcomings of the prior art, namely "1. difficult production, long construction period, and difficult manufacturing," this patent is simple to produce and manufacture; addressing the shortcomings of the prior art, namely "2. very difficult processing," this patent is simple and convenient to process; addressing the shortcomings of the prior art, namely "3. lack of reliable support structure," this patent can utilize a stable structural support for fixation, followed by cutting by the Ayong laser cutting machine. Attached Figure Description
[0029] To further illustrate this utility model, the following description is provided in conjunction with the accompanying drawings:
[0030] Figure 1 A three-dimensional view of the telescopic device profile;
[0031] Figure 2 This is a diagram illustrating the implementation of a telescopic device with a shorter top and longer bottom profile.
[0032] Figure 3 A diagram showing the realization of equal length top and bottom of the telescopic device profile;
[0033] Figure 4 This is a diagram illustrating the implementation of a telescopic device with a longer top and shorter bottom profile.
[0034] Figure 5 A schematic diagram illustrating the implementation of an anti-slip groove on a telescopic device profile.
[0035] Figure 6 A schematic diagram showing the implementation of a telescopic device profile with two anti-slip grooves;
[0036] Figure 7 A schematic diagram showing the implementation of a telescopic device profile with three anti-slip grooves;
[0037] Figure 8 A diagram showing the implementation of a telescopic device with a semi-π-shaped profile, shorter on the top and longer on the bottom;
[0038] Figure 9 A diagram illustrating the realization of equal lengths on the upper and lower surfaces of a telescopic device profile with a semi-π-shaped strip.
[0039] Figure 10 The diagram shows the implementation of a telescopic device profile with a semi-π-shaped strip, where the top is longer than the bottom.
[0040] Figure 11 A schematic diagram showing the implementation of a telescopic device profile with a semi-π-shaped platform and an anti-slip groove;
[0041] Figure 12 A schematic diagram showing the implementation of a telescopic device with a semi-π-shaped frame and two anti-slip grooves;
[0042] Figure 13 A schematic diagram showing the implementation of a telescopic device with a semi-π-shaped frame, a platform, and three anti-slip grooves;
[0043] Figure 14 A diagram showing the implementation of a trapezoidal, shorter-at-the-top and longer-at-the-bottom design for a semi-π-shaped steel toothed end of a telescopic device.
[0044] Figure 15 A diagram showing the implementation of a semi-π-shaped steel toothed tip with trapezoidal upper and lower equal lengths for a telescopic device.
[0045] Figure 16 A diagram showing the implementation of a trapezoidal toothed end with a longer upper section and shorter lower section for a semi-π-shaped steel profile used in telescopic devices;
[0046] Figure 17 This is a structural diagram of a utility model with support.
[0047] Among them: 1. Upper plate, 2. Vertical plate, 3. Lower plate, 11. Protruding part of profile plate, 12. Profile step, 31. Protruding part of lower plate; 41. Support base plate; 42. Support vertical rib plate; 43. Accommodation gap; 44. Outer vertical plate; 45. Bolt. Detailed Implementation
[0048] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "top," and "bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.
[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0050] This patent provides multiple parallel solutions; the different descriptions represent improved or parallel solutions based on a basic solution. Each solution has its own unique characteristics. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other. Fixing methods not described herein can be any type of fixing, such as threaded fixing, bolt fixing, or adhesive bonding.
[0051] Example 1: Referring to all the accompanying drawings; A monolithic steel profile for manufacturing bridge expansion joints, characterized in that,
[0052] The profile is rolled out in one piece;
[0053] The integral steel profile includes an upper plate 1, a vertical plate 2, and a lower plate 3; the upper plate 1 on the surface of the profile has more than 0 anti-slip grooves;
[0054] The protruding portion 11 of the profile plate is the portion of the upper plate 1 that extends backward. The length positional relationship between the protruding portion 11 of the profile plate and the protruding portion 31 of the lower plate is either equal or unequal.
[0055] The upper plate 1 has a sloping structure, meaning that the height of the upper plate 1 gradually decreases from the protruding part 11 of the profile plate to the other side. The substantive technical effects and implementation process of this technical solution, i.e., its basic functions, are as follows: the profile is integrally rolled in one piece without welding; it consists of an upper plate, a vertical plate, a lower plate, anti-slip grooves, and steps; the profile can be processed into comb-tooth edge beams, and the telescopic device composed of comb-tooth edge beams has the advantages of both modular and comb-tooth telescopic devices; the comb-tooth edge beam structure has strong overall durability, improving the entire life cycle of the telescopic device.
[0056] Key technical points: The profile is integrally rolled in one piece, without welding; this profile can be processed into comb-tooth edge beams. Anti-slip grooves 13 on the profile surface prevent vehicle slippage and ensure smooth vehicle passage. Stainless steel sliding plates are installed at the profile steps 12 to ensure strong and durable welding; they also provide space for relative sliding between the upper and lower steel plates. The length of the protruding portion 11 of the profile plate can be greater than, equal to, or less than the length of the protruding portion 31 of the lower plate; the protruding portion and the vertical plate 2 are connected to the anchoring steel plate using mortise and tenon joints, increasing the weld length, making the stress distribution more reasonable, and enhancing durability.
[0057] To address the shortcomings of existing technologies, namely "1. difficult production, long construction period, and difficult manufacturing," this patent is simple to produce and manufacture; to address the shortcomings of existing technologies, namely "2. very difficult processing," this patent is simple and convenient to process; to address the shortcomings of existing technologies, namely "3. lack of reliable support structure," this patent can utilize a stable support structure for fixation, followed by cutting by the Ayong laser cutting machine above.
[0058] Example 2: As a further improvement, parallel, or optional independent solution, a profile step 12 is arranged at the root of the lower surface of the upper plate 1. The substantial technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: a stainless steel sliding plate is welded to the lower surface of the profile step 12. Regarding the current state of the technology: there is currently an integral steel expansion joint arrangement with a steel plate at the bottom, but the stainless steel plates below the comb plates on both sides of the expansion joint also need to be arranged vertically and crosswise above the expansion joint, which is currently very difficult to process. Direct welding facilitates the sliding of the two stainless steel sliding plates, one welded to the lower surface of the profile step 12 and the other welded to the side of the profile step 12 on the other side.
[0059] Example 3: As a further improvement, parallel, or optional independent solution, the end of the upper plate 1 is an inclined surface. The substantial technical effect and implementation process of this technical solution, i.e., its basic function, are as follows: the end of the profile plate 1 is an inclined surface, and the telescopic device can automatically clean the bridge surface of dust when it extends and retracts longitudinally, greatly reducing the frequency of daily maintenance and achieving a maintenance-free effect.
[0060] Example 4: As a further improvement, parallel, or optional independent solution, it also includes an auxiliary support component that works in conjunction with the integral steel section when laser cutting the integral steel section;
[0061] The auxiliary support includes a support base plate 41, on which multiple sets of vertical support ribs 42 are arranged, and the vertical support ribs 42 can support the lower surface of the upper plate 1.
[0062] The supporting base plate 41 is formed by the inner vertical plate and the outer vertical plate 44 to form a receiving gap 43, which can accommodate the profile plate protrusion 11 and the lower plate protrusion 31.
[0063] Bolt holes are also arranged on the outer panel 44. After the bolts 45 pass through the bolt holes, they can press and fix the integral steel. The actual technical effect and implementation process of the technical solution here, that is, the basic function, are as follows: it can stably support the integral steel, and the integral steel can be fixed directly after being placed in it, which facilitates subsequent cutting.
[0064] It should be noted that the multiple solutions provided in this patent include their own basic solutions, which are independent of each other and do not restrict each other. However, they can also be combined with each other without conflict to achieve multiple effects.
[0065] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims.
Claims
1. A monolithic steel profile for manufacturing bridge expansion joints, characterized in that, The profile is rolled out in one piece; The integral steel profile includes an upper plate (1), a vertical plate (2), and a lower plate (3); the upper plate (1) on the surface of the profile has more than 0 anti-slip grooves; The protruding part (11) of the profile plate is the part that extends backward from the upper plate (1). The length position relationship between the protruding part (11) of the profile plate and the protruding part (31) of the lower plate is equal or unequal. The upper plate (1) is a structure with a slope, that is, the height of the upper plate (1) gradually decreases from the protruding part (11) of the profile plate to the other side.
2. The integral steel profile for manufacturing bridge expansion joints as described in claim 1, characterized in that, A profile step (12) is arranged at the root of the lower surface of the upper plate (1).
3. The integral steel profile for manufacturing bridge expansion joints as described in claim 1, characterized in that, The end of the upper plate (1) is an inclined surface.
4. The integral steel profile for manufacturing bridge expansion joints as described in claim 1, characterized in that, A stainless steel sliding plate is welded to the lower surface of the profile step (12).
5. The integral steel profile for manufacturing bridge expansion joints as described in claim 1, characterized in that, It also includes auxiliary support components that work in conjunction with the integral steel section during laser cutting; The auxiliary support includes a support base plate (41), on which multiple sets of support vertical ribs (42) are arranged, and the support vertical ribs (42) can support the lower surface of the upper plate (1); The supporting base plate (41) is formed by the inner vertical plate and the outer vertical plate (44) to form a receiving gap (43), in which the profile plate protrusion (11) and the lower plate protrusion (31) can be placed. Bolt holes are also arranged on the outer panel (44), and the bolts (45) can be pressed and fixed after passing through the bolt holes.