Water-stable paving transverse joint fixing steel mould

By setting up a connection structure on the fixed steel mold at the end of the water-stable cross-slit joint, the problem of separation between the springboard and the steel mold is solved, stable connection and rapid splicing are achieved, and construction efficiency is improved.

CN223269049UActive Publication Date: 2025-08-26THE FIRST ENG CO LTD OF CHINA RAILWAY NO 12 BUREAU GRP
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Patent Information

Application Number
CN202422556417.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-23
Publication Date
2025-08-26
Estimated Expiration
2034-10-23

AI Technical Summary

Technical Problem

When the existing water-stable paving horizontal joint fixed steel mold passes by the soil press, the springboard is easily separated from the water-stable cross-slit fixed steel mold, which requires frequent adjustment and lacks an effective connection structure.

Method used

Weight reduction grooves, connecting pin holes, fixing support, splicing projections and grooves are installed on the fixed steel mold of the water-stable cross-slit end. The stable connection between the springboard seat and the fixed steel mold is achieved by connecting the pin columns and studs to prevent separation, and the splicing projections and grooves are fixed through the anti-loosening nuts to ensure smooth splicing.

Benefits of technology

Effectively prevent the springboard seat from moving and separation under friction, reduce the frequency of manual adjustment, ensure smooth alignment and splicing of steel molds, and improve construction efficiency.

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Abstract

The utility model discloses a water-stable paving transverse joint fixing steel mould, and relates to the technical field of road construction. The structure comprises a cement stabilization subbase layer, a cement stabilization transverse joint end fixing steel die is fixedly arranged at the end of the cement stabilization subbase layer through ground nails, weight reduction through grooves are symmetrically formed in the top of the cement stabilization transverse joint end fixing steel die, and connecting pin holes are formed in the positions, on the front sides and the rear sides of the two weight reduction through grooves, of the bottom of the cement stabilization transverse joint end fixing steel die side by side at equal intervals. The connecting pin columns are inserted into the connecting pin holes, so that the springboard seat can be effectively connected with the water-stable transverse joint end fixing steel mold, and the situation that the springboard seat moves forwards and is separated from the water-stable transverse joint end fixing steel mold under the action of friction force in the process that a soil compactor passes through the springboard seat is prevented, and the service life of the springboard seat is prolonged. And the connecting studs are arranged in the splicing grooves, so that the connecting studs can be prevented from being bent by external force, and smooth splicing of the steel molds at the two ends is better guaranteed.
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Description

Technical Field

[0001] The utility model belongs to the technical field of road construction, in particular to a fixed steel formwork for a transverse joint of a water-stable paving. Background Art

[0002] With the rapid development of my country's transportation industry, road construction operations are becoming more and more popular, and new road construction is taking place everywhere in cities and villages. Therefore, water-stabilized concrete construction is quite common and extremely important. During the water-stabilized concrete construction process, there are many transverse joints due to paving length, mechanical failures, etc., and the conventional transverse joint method is to manually cut a transverse groove along the road perpendicular to the center line of the road at a distance of 0.5m to 1m from the end of the paved water-stabilized concrete. After the groove is cut, square timber with the same thickness as the water-stabilized concrete layer is buried. After the end is rolled, the excess mixture on the side of the square timber near the end is removed. After searching, the patent with application number 202122642732.9 discloses a water-stabilized concrete paving transverse joint fixing steel mold, including a water-stabilized concrete base layer, and the end of the water-stabilized concrete base layer is provided with a number of water-stabilized concrete transverse joint end fixing steel molds. The water-stabilized concrete transverse joint end fixing steel molds include a supporting cross bar, a water-stabilized concrete formwork and a number of connecting steel plates. The several connecting steel plates are welded equidistantly between the water-stabilized concrete formwork and the supporting cross bar, and the front of the supporting cross bar is provided with a number of fixed brackets in sequence.

[0003] However, during actual use, the applicant found that there was a lack of connection structure between the springboard and the fixed steel formwork at the end of the water-stabilized horizontal joint. When the soil compactor passed over the springboard, the springboard would move forward under the action of friction and separate from the fixed steel formwork at the end of the water-stabilized horizontal joint, requiring personnel to frequently reset and adjust the position of the springboard. In view of this, we proposed a fixed steel formwork for the transverse joint of water-stabilized paving. Utility Model Content

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0005] The utility model is a steel mold for fixing the transverse joint of a water-stable paving, comprising a water-stable bottom base, the end of the water-stable bottom base being fixed with a water-stable transverse seam end fixing steel mold by a ground nail, the top of the water-stable transverse seam end fixing steel mold being symmetrically provided with weight-reducing through grooves, the bottoms of the water-stable transverse seam end fixing steel molds on the front and rear sides of the two weight-reducing through grooves are both provided with connecting pin holes arranged side by side at equal intervals, the front side of the water-stable transverse seam end fixing steel mold is fixedly provided with a fixed support, one end of the water-stable transverse seam end fixing steel mold is fixedly provided with a splicing protrusion, and the splicing protrusion is fixedly provided with a splicing protrusion. A connecting through hole is opened, and a splicing groove is opened at the other end of the water-stabilizing transverse seam end fixing steel mold. The splicing protrusion is matched and connected with the splicing groove on the adjacent water-stabilizing transverse seam end fixing steel mold. A connecting stud is fixedly provided on the inner wall of the splicing groove. A springboard seat is symmetrically placed on the front end of the water-stabilizing transverse seam end fixing steel mold. A sloped surface is provided on the top of the springboard seat, and a connecting tail plate is horizontally provided on the springboard seat on the rear side of the sloped surface. A connecting pin is fixedly provided on the bottom of the connecting tail plate, and the connecting pin is matched and connected with the connecting pin hole.

[0006] Preferably, two connecting through holes are provided side by side on the splicing protrusion, and two connecting studs are provided side by side on the splicing groove.

[0007] Preferably, the connecting stud is cooperatively connected with the connecting through hole on the adjacent water-stabilized transverse seam end fixing steel mold, and the front end of the connecting stud passes through the connecting through hole and is threadedly connected with a anti-loosening nut.

[0008] Preferably, finger grooves are symmetrically provided on both sides of the springboard seat.

[0009] Preferably, three fixed supports are arranged side by side at equal intervals on the front side of the steel formwork for fixing the end of the water-stabilized transverse seam, and fixing holes are provided on the three fixed supports.

[0010] Preferably, the lower end of the ground nail passes through the fixing hole on the fixing support and is inserted into the ground.

[0011] The utility model has the following beneficial effects:

[0012] The utility model relates to a steel formwork for fixing a transverse joint of a water-stable paving. By overlapping the connecting tail plate on the springboard seat with the top of the steel formwork for fixing the end of the water-stable transverse seam, and inserting the connecting pin into the connecting pin hole, the springboard seat can be effectively connected with the steel formwork for fixing the end of the water-stable transverse seam, thereby preventing the springboard seat from moving forward and separating from the steel formwork for fixing the end of the water-stable transverse seam under the action of friction when a soil compactor passes over the springboard seat, thereby eliminating the need for personnel to frequently reset and adjust the springboard seat. By arranging the connecting studs inside the splicing grooves, the connecting studs can be better protected to prevent the connecting studs from being bent by external forces, thereby better ensuring the smooth alignment and splicing between the steel forms for fixing the end of the water-stable transverse seam at both ends, and achieving better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 This is a structural diagram of a steel formwork for fixing a transverse joint of a water-stable paving according to the present invention;

[0015] Figure 2 This is a structural schematic diagram of a water-stable stabilized paving transverse joint fixed steel formwork in the utility model;

[0016] Figure 3 This is a structural schematic diagram of a springboard seat in a fixed steel formwork for a transverse joint of a water-stable paving according to the present invention.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Water-stabilized subbase; 2. Steel formwork for fixing the end of the water-stabilized transverse joint; 21. Connecting pin hole; 22. Weight-reducing through groove; 23. Fixed support; 24. Splicing protrusion; 241. Connecting through hole; 25. Splicing groove; 251. Connecting stud; 3. Gangplank seat; 31. Slope surface; 32. Connecting tail plate; 33. Connecting pin; 34. Finger groove. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-3 As shown, the utility model provides a technical solution:

[0021] A water-stable paving transverse joint fixed steel mold, comprising a water-stable base layer 1, the end of the water-stable base layer 1 is fixed with a water-stable transverse joint end fixed steel mold 2 by a ground nail, the top of the water-stable transverse joint end fixed steel mold 2 is symmetrically provided with a weight-reducing through groove 22, the bottom of the water-stable transverse joint end fixed steel mold 2 on both sides of the two weight-reducing through grooves 22 are provided with connecting pin holes 21 side by side and at equal intervals, the front side of the water-stable transverse joint end fixed steel mold 2 is fixed with a fixed support 23, and the fixed supports 23 on the front side of the water-stable transverse joint end fixed steel mold 2 are arranged side by side and at equal intervals. There are three fixed supports 23, each of which has a fixing hole. The lower end of the ground nail passes through the fixing hole on the fixed support 23 and is inserted into the ground. The front end of the water-stable horizontal seam end fixed steel mold 2 is symmetrically clamped with a springboard seat 3. The top of the springboard seat 3 is provided with a slope surface 31. A connecting tail plate 32 is horizontally provided on the springboard seat 3 on the rear side of the slope surface 31. The bottom of the connecting tail plate 32 is fixedly provided with a connecting pin 33. The connecting pin 33 is connected with the connecting pin hole 21. By overlapping the connecting tail plate 32 on the springboard seat 3 and fixing it at the end of the water-stable horizontal seam The top of the steel mold 2 is connected, and the connecting pin 33 is inserted into the connecting pin hole 21, which can realize the effective connection between the springboard seat 3 and the water-stabilizing transverse seam end fixed steel mold 2, thereby preventing the springboard seat 3 from moving forward and separating from the water-stabilizing transverse seam end fixed steel mold 2 under the action of friction during the process of the earth compactor passing over the springboard seat 3, and thus there is no need for personnel to frequently reset and adjust the springboard seat 3. Finger grooves 34 are symmetrically provided on both sides of the springboard seat 3. When in use, the worker pulls a straight line and shovels the end water-stabilizing material to align the water-stabilizing transverse seam end fixed steel mold. The rear side of 2 is placed against the edge of the end water stabilizer, and the ground nails are inserted into the ground after passing through the fixing holes on the fixed support 23 to fix the water stabilizer transverse seam end fixed steel mold 2. The end water stabilizer material is manually spread and leveled according to the loose laying thickness. After the water stabilizer transverse seam end fixed steel mold 2 is installed and reinforced, the gangplank seat 3 used for the upper and lower parts of the machine is overlapped and installed in place according to the wheelbase of the machine. When overlapping, the connecting tail plate 32 on the gangplank seat 3 can be overlapped on the top of the water stabilizer transverse seam end fixed steel mold 2, and the connecting pin 33 can be inserted into the corresponding connecting pin hole 21.

[0022] The cam 251 is provided with two connecting studs 251 on the splicing groove 25, and the connecting studs 251 are connected with the connecting through holes 241 on the adjacent water-stable transverse seam end fixing steel mold 2. The front end of the connecting stud 251 passes through the connecting through hole 241 and is screwed with a locking nut. When splicing the water-stable horizontal seam end fixed steel mold 2, the splicing protrusion 24 at one end of the water-stable horizontal seam end fixed steel mold 2 can be aligned and inserted into the splicing groove 25 on the adjacent water-stable horizontal seam end fixed steel mold 2, and the front end of the connecting stud 251 passes through the connecting through hole 241 and is screwed with a locking nut to prevent loosening. The splicing protrusion 24 is pressed and fixed in the splicing groove 25 by the locking nut. In the process, realize the rapid splicing of adjacent water-stabilized horizontal seam end fixing steel formwork 2, draw a straight line when splicing, pay attention to the alignment of the top and vertical surface of the two sections of water-stabilized horizontal seam end fixing steel formwork 2, ensure that the connection between the sections is straight and without misalignment, after the end water-stabilized material is finally solidified, manually pull out the ground nails one by one, tap the water-stabilized horizontal seam end fixing steel formwork 2, observe that there is a gap between the water-stabilized horizontal seam end fixing steel formwork 2 and the water-stabilized material, and then two workers lift the water-stabilized horizontal seam end fixing steel formwork 2 out and move it to the next joint.

[0023] Working principle: When in use, the worker pulls a straight line, shovels the end water-stabilizing material, and then makes the rear side of the water-stabilizing transverse seam end fixed steel mold 2 against the end water-stabilizing edge, and inserts the ground nail through the fixing hole on the fixed support 23 into the ground, fixes the water-stabilizing transverse seam end fixed steel mold 2, and manually spreads and levels the end water-stabilizing material according to the loose laying thickness. When splicing the water-stabilizing transverse seam end fixed steel mold 2, the splicing protrusion 24 at one end of a water-stabilizing transverse seam end fixed steel mold 2 can be aligned and inserted into the splicing groove 25 on the adjacent water-stabilizing transverse seam end fixed steel mold 2, and the front end of the connecting stud 251 is passed through the connecting through hole 241 and then screwed to prevent loosening. The splicing protrusion 24 is pressed and fixed in the splicing groove 25 by the anti-loosening nut, so that the adjacent water-stabilizing transverse seam ends are connected. Quick splicing of the head fixed steel formwork 2, draw a straight line when splicing, pay attention to the alignment of the top and vertical surfaces of the two sections of the water-stabilized horizontal seam end fixed steel formwork 2, ensure that the connection between the segments is straight and there is no misalignment. After the water-stabilized horizontal seam end fixed steel formwork 2 is installed and reinforced, the gangplank seat 3 used for the upper and lower parts of the machine is overlapped and installed in place according to the wheelbase of the machine. When overlapping, the connecting tail plate 32 on the gangplank seat 3 can be overlapped on the top of the water-stabilized horizontal seam end fixed steel formwork 2, and the connecting pin 33 is inserted into the corresponding connecting pin hole 21. After the end water-stabilized material is finally solidified, the ground nails are manually pulled out one by one, and the water-stabilized horizontal seam end fixed steel formwork 2 is tapped. After observing that there is a gap between the water-stabilized horizontal seam end fixed steel formwork 2 and the water-stabilized material, two workers lift the water-stabilized horizontal seam end fixed steel formwork 2 and move it to the next joint.

[0024] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0025] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions described in the aforementioned embodiments and any equivalent replacement of some of the technical features therein fall within the scope of protection of the present invention.

Claims

1. A steel formwork for fixing transverse joints of a water-stable paving material, comprising a water-stable subbase (1), characterized in that: The end of the water-stable bottom base (1) is fixed with a water-stable transverse seam end fixing steel mold (2) through a ground nail, and the top of the water-stable transverse seam end fixing steel mold (2) is symmetrically provided with a weight-reducing through groove (22), and the bottoms of the water-stable transverse seam end fixing steel molds (2) on both sides of the two weight-reducing through grooves (22) are provided with connecting pin holes (21) arranged side by side and at equal intervals, and the front side of the water-stable transverse seam end fixing steel mold (2) is fixedly provided with a fixed support (23), and one end of the water-stable transverse seam end fixing steel mold (2) is fixedly provided with a splicing protrusion (24), and a connecting through hole (241) is provided on the splicing protrusion (24), and the other end of the water-stable transverse seam end fixing steel mold (2) is fixed with a splicing protrusion (24). A splicing groove (25) is provided at one end, and the splicing protrusion (24) is matched and connected with the splicing groove (25) on the adjacent water-stabilizing transverse seam end fixing steel mold (2), and a connecting stud (251) is fixedly provided on the inner wall of the splicing groove (25), and a springboard seat (3) is symmetrically clamped at the front end of the water-stabilizing transverse seam end fixing steel mold (2), and a slope surface (31) is provided on the top of the springboard seat (3), and a connecting tail plate (32) is horizontally provided on the springboard seat (3) on the rear side of the slope surface (31), and a connecting pin column (33) is fixedly provided at the bottom of the connecting tail plate (32), and the connecting pin column (33) is matched and connected with the connecting pin hole (21).

2. A steel formwork for fixing transverse joints of water-stable paving according to claim 1, characterized in that: Two connecting through holes (241) are arranged side by side on the splicing protrusion (24), and two connecting studs (251) are arranged side by side on the splicing groove (25).

3. A steel formwork for fixing transverse joints of water-stable paving according to claim 2, characterized in that: The connecting stud (251) is matched and connected with the connecting through hole (241) on the adjacent water-stabilized transverse seam end fixing steel mold (2), and the front end of the connecting stud (251) passes through the connecting through hole (241) and is screwed with a locking nut.

4. A steel formwork for fixing transverse joints of water-stable paving according to claim 1, characterized in that: Finger grooves (34) are symmetrically provided on both sides of the springboard seat (3).

5. A steel formwork for fixing transverse joints of water-stable paving according to claim 4, characterized in that: Three fixed supports (23) are arranged side by side at equal intervals on the front side of the water-stabilized transverse seam end fixing steel mold (2), and fixing holes are provided on the three fixed supports (23).

6. A steel formwork for fixing transverse joints of water-stable paving according to claim 1, characterized in that: The lower end of the ground nail passes through the fixing hole on the fixing support (23) and is inserted into the ground.

Citation Information

Patent Citations

  • Water-stable paving transverse joint fixing steel mould

    CN216712659U