Cement stabilizing layer template fixing device

Abstract

The utility model relates to a cement stabilizing layer formwork fixing device which comprises a formwork, an L-shaped pin column, a pin column pressing piece, an annular head, a connecting rod and a fixing tail end, the lower side of the formwork is attached to a roadbed layer, a through hole is formed in the middle of the formwork, one end of the connecting rod is bent to form the fixing tail end, and the tail end of the fixing tail end is perpendicular to the connecting rod. An L-shaped pin column is movably installed at the position, close to the through hole, of the outer side of the formwork through a pin column pressing piece, the annular head is fixed in the through hole formed in the middle of the formwork through the L-shaped pin column, and the fixed tail end is fixedly connected with a roadbed layer below a cement layer through a nail; according to the utility model, the templates and the roadbed layer are connected through the connecting rods, and the connecting metal sheets are connected with the screw holes preset at the end parts of the two templates, so that the pavement templates can be easily supported, the tidiness and consistency of the supported templates can be ensured, and meanwhile, by means of the L-shaped pin column or the linear pin column, a worker can quickly loosen the annular head without hands, and the working efficiency is improved. And the template can be conveniently disassembled.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to a cement-stabilized layer formwork fixing device. Background Technology

[0002] During road construction, formwork needs to be erected on both sides of the roadbed to facilitate the pouring of cement to form the road surface. The current method of erecting the formwork involves drilling holes in the roadbed, inserting fixing rods, and then binding the formwork with wire to fix it. This method involves a large amount of work, requires continuous drilling, and has high technical requirements. It is necessary to ensure that each hole is the same size to prevent the fixing rods from leaning to one side or the other. The overall formwork erection is time-consuming and labor-intensive.

[0003] Currently, a utility model patent with publication number CN215482153U discloses an internally pulled cement-stabilized layer formwork fixing system, aiming to solve the problems of complex construction process, difficult operation, and large manpower required by traditional formwork in road construction. This utility model includes an internal pull rod, a formwork, and fixing nails. The internal pull rod includes a rod body, a first crossbar, and a second crossbar, with one end of the rod body bent into a hook-shaped structure. The side wall of the formwork is provided with a rectangular hole. The design of this utility model adopts internal pulling fixing, which can directly reduce the compression of the formwork during the compaction process and ensure the compaction degree of the cement-stabilized layer edge. It is easy to install and disassemble, which helps to improve the construction efficiency of the cement-stabilized layer and reduce construction costs and manpower.

[0004] As can be seen from the above-disclosed technical content, as prior art, the utility model with announcement number CN215482153U uses a first crossbar and a second crossbar to limit the template. However, when disassembling it, a special tool is needed to cut off the first crossbar in order to separate the template from the inner tie rod and complete the disassembly of the template. Since very little of the first crossbar is exposed, disassembly is relatively inconvenient. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a cement-stabilized layer formwork fixing device, which can easily complete road surface formwork, ensure that the formwork is neat and consistent, and facilitate the disassembly of the formwork.

[0006] To achieve the above objectives, this utility model provides a cement-stabilized layer formwork fixing device, comprising a formwork, an L-shaped pin, a pin clamping plate, an annular head, and a connecting rod. The lower side of the formwork is attached to the roadbed, and a through hole is opened in the middle of the formwork. One end of the connecting rod is bent to form a fixed tail end, with the fixed tail end perpendicular to the connecting rod. The other end is bent and welded to form an annular head. An L-shaped pin is movably installed on the outer side of the formwork near the through hole via the pin clamping plate. The annular head is fixed in the through hole in the middle of the formwork via the L-shaped pin. The fixed tail end is fixedly connected to the roadbed under the cement layer via nails.

[0007] In addition, the cement-stabilized layer formwork fixing device proposed in the above embodiments of this utility model may also have the following additional technical features:

[0008] As a further improvement of this utility model, the L-shaped pin is replaced with a straight pin, one end of which is fixedly connected to the through hole of the template, and the other end is left with a gap.

[0009] As a further improvement of this utility model, the pin pressure plate is fixedly connected to the template surface by screws or welding.

[0010] As a further improvement of this utility model, the annular head is replaced with a cylindrical head, which is welded to the end of the connecting rod.

[0011] As a further improvement of this utility model, the cylindrical head consists of two parallel metal columns that are not perpendicular to the connecting rod.

[0012] As a further improvement of this utility model, the template is provided with screw holes at both ends.

[0013] By means of the above solution, this utility model has at least the following advantages: Compared with conventional mold support, by connecting the template and the road base with connecting rods and connecting the screw holes at the ends of the two templates with connecting metal plates, the road surface formwork can be completed more easily and the formwork can be made neat and consistent. At the same time, with the help of L-shaped pins or straight pins, workers can quickly loosen the ring head by hand and disassemble the template conveniently. Attached Figure Description

[0014] Figure 1 This is a side view of the cement stabilized layer formwork fixing device using a ring head.

[0015] Figure 2 This is a top view of the cement stabilized layer formwork fixing device using a ring head.

[0016] Figure 3 This is a 3D view of the cement stabilized layer formwork fixing device using L-shaped pins to connect the formwork;

[0017] Figure 4 This is a front view of the cement stabilized layer formwork fixing device using L-shaped pins to connect the formwork;

[0018] Figure 5 This is a diagram showing the usage status of the cement-stabilized layer formwork fixing device;

[0019] Figure 6 It is a 3D view of the cement stabilized layer formwork fixing device connecting the formwork via a straight pin;

[0020] Figure 7This is a front view of the cement stabilized layer formwork fixing device connecting the formwork via a straight pin.

[0021] Figure 8 This is a schematic diagram of the formwork connection of the cement stabilized layer formwork fixing device;

[0022] In the diagram: 1. Template, 2. L-shaped pin, 3. Pin pressure plate, 4. Ring head, 5. Connecting rod, 6. Fixed tail end, 7. Cement layer, 8. Road base layer, 9. Pin limiting plate, 10. Straight pin, 11. Connecting metal plate. Detailed Implementation

[0023] The following description, in conjunction with the accompanying drawings, describes the cement-stabilized layer formwork fixing device of this utility model.

[0024] In Embodiment 1 of this application, as Figures 1 to 5 As shown, this cement-stabilized layer formwork fixing device (hereinafter referred to as "the present invention") includes a formwork 1, an L-shaped pin 2, a pin clamping plate 3, an annular head 4, a connecting rod 5, a fixed tail end 6, a cement layer 7, a road base layer 8, a column-shaped head 9, and a straight pin 10. The lower side of the formwork 1 is attached to the road base layer 8. A through hole is opened in the middle of the formwork 1. One end of the connecting rod 5 is bent to form the fixed tail end 6, and the end of the fixed tail end 6 is perpendicular to the connecting rod 5. The other end is bent and welded to form the annular head 4. The L-shaped pin 2 is movably installed on the outer side of the formwork 1 near the through hole through the pin clamping plate 3. The annular head 4 is fixed in the through hole opened in the middle of the formwork 1 through the L-shaped pin 2. The fixed tail end 6 is fixedly connected to the road base layer 8 under the cement layer 7 by nails. A pin limiting plate 9 is fixedly installed on the L-shaped pin 2. The L-shaped pin 2 is installed on the formwork 1 through two pin clamping plates 3, and the pin limiting plate 9 is fixedly installed on the L-shaped pin 2 between the two pin clamping plates 3. The pin limit plate 9 can prevent the L-shaped pin 2 from detaching from the pin pressure plate 3 when the workers remove it.

[0025] The utility model patent CN215482153U describes an internally tensioned cement stabilization layer formwork fixing system (hereinafter referred to as "the patent"). This patent uses a first horizontal bar and a second horizontal bar to limit the formwork. However, when disassembling the formwork, a special tool is needed to cut the first horizontal bar to separate the formwork from the internal tension bar and complete the disassembly. Since very little of the first horizontal bar is exposed, disassembly is inconvenient. In contrast, this invention sets the limiting component as an L-shaped pin 2 or a straight pin 10, allowing workers to quickly loosen the ring head 4 by hand and easily disassemble the formwork 1.

[0026] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 6 and Figure 7As shown, the L-shaped pin 2 is replaced with a straight pin 10. One end of the straight pin 10 is fixedly connected to the through hole of the template 1, and the other end is left with a gap, which can further simplify the disassembly steps. The staff only needs to hold a hammer and strike once to remove the ring head 4 from the straight pin 10 and exit the template 1 through the gap reserved between the straight pin 10 and the through hole of the template 1.

[0027] To further optimize the working efficiency of this application and to make the fixation more secure, the pin pressure plate 3 is fixedly connected to the surface of the template 1 by screws or welding. To ensure that multiple templates 1 remain straight when spliced, such as... Figure 8 As shown, the template 1 has screw holes at both ends, which are connected by connecting metal sheets 11.

[0028] When this utility model is used, its specific operation is as follows:

[0029] In use, the fixed end 6 is nailed into the road base layer 8, the ring head 4 is placed into the through hole of the template 1, and the ring head 4 and the pin pressure plate 3 are inserted through the L-shaped pin 2 or the straight pin 10 to limit its position. Then, the two templates 1 are connected and kept straight by the connecting metal plate 11. Then, the pouring can begin. After the cement dries, the L-shaped pin 2 is hammered or the ring head 4 is hammered with a steel chisel or other tools to make it come out, and the connecting metal plate 11 is removed, and the template 1 can be removed.

[0030] In summary, the cement stabilized layer formwork fixing device of this utility model connects the formwork 1 and the road base 8 through the connecting rod 5 and the connecting metal plate 11 connects the pre-set screw holes at the ends of the two formwork 1s. It can easily complete the road formwork and ensure that the formwork is neat and consistent. At the same time, with the help of the L-shaped pin 2 or the straight pin 10, the workers can quickly loosen the ring head 4 by hand or with a hammer, and the formwork 1 can be easily disassembled.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A cement-stabilized layer formwork fixing device, comprising a formwork (1), a connecting rod (5), a cement layer (7), and a road base layer (8), wherein the lower side of the formwork (1) is attached to the road base layer (8), and a through hole is provided in the middle of the formwork (1), characterized in that, One end of the connecting rod (5) is bent to form a fixed tail end (6), the end of the fixed tail end (6) is perpendicular to the connecting rod (5), and the other end is bent and welded to form a ring head (4) template. An L-shaped pin (2) is movably installed on the outside of the template (1) near the through hole by a pin pressure plate (3). The ring head (4) is fixed in the through hole in the middle of the template (1) by the L-shaped pin (2). The fixed tail end (6) is fixedly connected to the road base (8) under the cement layer (7) by nails.

2. The cement-stabilized layer formwork fixing device according to claim 1, characterized in that, The L-shaped pin (2) is replaced with a straight pin (10). One end of the straight pin (10) is fixedly connected to the through hole of the template (1), and the other end is left with a gap.

3. The cement-stabilized layer formwork fixing device according to claim 2, characterized in that, The pin pressure plate (3) is fixedly connected to the surface of the template (1) by screws or welding.

4. The cement-stabilized layer formwork fixing device according to claim 1, characterized in that, The template (1) has screw holes at both ends.

5. The cement-stabilized layer formwork fixing device according to claim 4, characterized in that, A pin limiting piece (9) is fixedly installed on the L-shaped pin (2).

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