Safety protection device for road foundation pit

Abstract

The utility model discloses a road foundation pit safety protection device which comprises supporting structures arranged on the two sides of a pit hole and a supporting structure arranged between the supporting structures on the two sides, the supporting structure can be adjusted in a telescopic mode so that the two ends of the supporting structure can make contact with the surfaces of the supporting structures, the supporting structure is pressed downwards, and the supporting structure can be fixed. And the two ends are in rolling friction with the surface of the supporting structure and are clamped. According to the utility model, the supporting structure is transformed to be telescopic so as to be accurately clamped between the supporting structures of the pit slope, and the rolling friction between the two ends of the supporting structure and the supporting structures is utilized to realize the small pressing distance and enhance the stability of the supporting structures; the rolling friction can reduce the impact force, so that the supporting structure can be taken down, the risk of structural damage is reduced, and the reutilization rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction, in particular to a road foundation pit safety protection device. Background Art

[0002] Road foundation pit construction refers to the pits formed by digging the ground during road construction. In order to ensure construction safety and prevent accidents, road foundation pits need to be protected. The most common method is to insert retaining boards on the slopes of the pits to prevent landslides. In order to further strengthen and enhance the stability of the retaining boards, beams or support structures are sometimes added to both sides of the retaining boards to improve the overall compression resistance and stability.

[0003] However, although the distance between the two ends of the pit is strictly in accordance with the requirements of construction excavation, and the width is basically the same within a certain distance, errors are inevitable in actual situations. This will result in a large difference in the length and width of the beams or supporting structures, making it difficult to effectively reinforce and enhance the stability of the retaining wall. In addition, because the beams or supporting structures are stuck on the retaining walls on both sides, many beams or supporting structures are damaged during removal and cannot be used any longer. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In order to solve the above-mentioned problems, the utility model provides the following technical solutions: a road foundation pit safety protection device includes a supporting structure arranged on both sides of the pit, and a supporting structure arranged between the supporting structures on both sides, characterized in that: the supporting structure can be telescopically adjusted so that the two ends of the supporting structure are in contact with the surface of the supporting structure, and the supporting structure is pressed down so that the two ends thereof roll, rub and engage with the surface of the supporting structure.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] As a preferred solution of the road foundation pit safety protection device of the utility model, wherein: the supporting structure is a retaining plate, and adjacent retaining plates are mutually clamped.

[0008] As a preferred solution of the road foundation pit safety protection device of the utility model, the support structure includes a crossbeam, a screw rod, a ball barrel and a ball.

[0009] As a preferred solution of the road foundation pit safety protection device of the utility model, wherein: screw holes at both ends of the crossbeam are provided with screw rods.

[0010] As a preferred solution of the road foundation pit safety protection device of the utility model, wherein: a ball barrel is provided on the screw rod, and a rotatable ball is provided in the accommodating cavity of the ball barrel.

[0011] As a preferred solution of the road foundation pit safety protection device of the utility model, wherein: the surface of the ball is provided with protrusions / grooves.

[0012] The beneficial effects of the utility model are as follows: by transforming the supporting structure into a retractable setting, it can be accurately stuck between the supporting structures of the pit slope, and through the rolling friction between the two ends of the supporting structure and the supporting structure, a small downward pressure distance is achieved, thereby enhancing the stability of the supporting structure. After the construction is completed, when the supporting structure is dismantled, the rolling friction will reduce the impact force, which is conducive to the removal of the supporting structure, reduces the risk of structural damage, and improves the reuse rate. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 1 It is a stereogram of the whole embodiment.

[0015] Figure 2 It is a three-dimensional diagram of the support structure of this embodiment.

[0016] Figure 3 For this embodiment Figure 1 Front view of .

[0017] In the figure; support structure 100;

[0018] Support structure 200 , cross beam 201 , screw hole 201 a , screw rod 202 , ball cylinder 203 , accommodating cavity 203 a , ball 204 . DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments. Example

[0022] Reference Figures 1 to 3 , is an embodiment of the utility model, which provides a road foundation pit safety protection device, including a supporting structure 100 arranged on both sides of the pit, and a supporting structure 200 arranged between the supporting structures 100 on both sides, wherein the supporting structure 200 can be telescopically adjusted so that the two ends of the supporting structure 200 are in contact with the surface of the supporting structure 100, and the supporting structure 200 is pressed down so that the two ends thereof roll, rub and engage with the surface of the supporting structure 100.

[0023] Specifically, the supporting structure 100 can be a steel or iron retaining plate that is interlocked with each other, or a retaining wall that is spliced ​​together. A supporting structure 200 is horizontally mounted between the supporting structures 100. The supporting structure 200 can be made of iron or steel. The structure of the supporting structure 200 is made retractable by changing its structure, and remains fixed after retraction, so as to be accurately stuck between the supporting structures 100 of the pit slope. At the same time, the rolling friction on both sides of the supporting structure 200 can further press the supporting structure 200 down a small distance and tightly stick it between the supporting structures, thereby reinforcing and enhancing the stability of the supporting structure. After construction, when dismantling the supporting structure 200, since the two ends of the supporting structure 200 are in contact with the supporting structure through rolling friction, the supporting structure 200 is easier to be removed, and the impact force applied to the supporting structure 200 during the required dismantling will be smaller, thereby preventing the supporting structure 200 from being damaged during dismantling, thereby improving its reuse rate.

[0024] For example, Figure 1-Figure 3 As shown, the support structure 100 is a retaining plate, and adjacent retaining plates are mutually clamped. The support structure 200 includes a crossbeam 201, a screw rod 202, a ball barrel 203 and a ball 204. The screw holes 201a at both ends of the crossbeam 201 are sleeved with screw rods 202, the screw rod 202 is provided with a ball barrel 203, and a rotatable ball 204 is provided in a receiving cavity 203a of the ball barrel 203, and the surface of the ball 204 is provided with convex points / grooves;

[0025] It is worth mentioning that before installing the support structure 200, the telescopic distance of the screw rod 202 in the screw hole of the beam 201 is adjusted to achieve a better initial clamping of the beam 201 of the support structure 200 between the supporting structure 100 on the slope of the pit, and the support structure 200 is further pressed down to further reinforce the supporting structure 100. At the same time, the screw rod is adjusted again to allow the accommodating cavity 203a of the ball barrel 203 to press against the rough surface of the ball 204, so that the rolling friction of the ball is switched to static friction during reinforcement. During this process, the rolling friction of the ball may be switched to static friction without turning the screw rod. When removing the support structure 200, turn the screw rod to shorten the beam 201, so that the beam 201 can be easily removed. For safety reasons, the length of the beam 201 is controlled to be able to be placed on the supporting structure 100, and then the next step of disassembly is carried out, which can improve the safety of disassembling the support structure 200.

[0026] Importantly, it should be noted that the construction and arrangement of the present application shown in a number of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature or number or position of the discrete element may be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also an equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0027] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0028] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A road foundation pit safety protection device, comprising a support structure (100) arranged on both sides of a pit hole, and a support structure (200) arranged between the support structures (100) on both sides, characterized in that: The support structure (200) can be telescopically adjusted so that both ends of the support structure (200) are in contact with the surface of the support structure (100), and the support structure (200) is pressed downward so that both ends thereof roll, rub and engage with the surface of the support structure (100).

2. The road foundation pit safety protection device according to claim 1, characterized in that: The supporting structure (100) is a retaining plate, and adjacent retaining plates are mutually clamped.

3. The road foundation pit safety protection device according to claim 1, characterized in that: The support structure (200) comprises a crossbeam (201), a screw rod (202), a ball cylinder (203) and a ball (204).

4. The road foundation pit safety protection device as claimed in claim 3, characterized in that: The screw holes (201a) at both ends of the crossbeam (201) are sleeved with screw rods (202).

5. The road foundation pit safety protection device as claimed in claim 4, characterized in that: A ball barrel (203) is provided on the screw rod (202), and a rotatable ball (204) is provided in a receiving cavity (203a) of the ball barrel (203).

6. The road foundation pit safety protection device according to claim 5, characterized in that: The surface of the rolling ball (204) is provided with convex points or grooves.

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