Excavation protection device

Abstract

The utility model relates to the technical field of construction protection equipment, and discloses an excavation and exploration protection device which comprises a plurality of pile casings, the pile casings are arranged in a nested mode, the top of any pile casing is in a 7 shape, the bottom of any pile casing is in an L shape, any pile casing is connected with the adjacent pile casing in a sliding mode, and the pile casings are connected with the adjacent pile casings in a sliding mode. The inner diameter of the bottom of any pile casing is smaller than the outer diameter of the top of the adjacent pile casing on the inner side. According to the utility model, the telescopic protective casing is adopted, and digging depth is performed step by step, so that manual digging and exploring are safe and reliable, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of construction protection equipment, in particular to an excavation protection device. Background Art

[0002] Existing projects that use artificial geological excavation rely on the stability of the soil itself, reduce the excavation surface, and use vertical excavation methods. Sometimes the soil suddenly loses stability, and there is no effective protective equipment during excavation, which is prone to safety accidents. Utility Model Content

[0003] The utility model aims to provide an excavation protection device which adopts a telescopic protection casing and digs deeper step by step, so as to make manual excavation safe and reliable and avoid safety accidents.

[0004] The utility model is achieved in this way:

[0005] A digging protection device includes multiple casings, which are nested. The top of any one of the casings is in a "7" shape and the bottom is in an "L" shape. Any one of the casings is slidably connected to an adjacent one of the casings, and the inner diameter of the bottom of any one of the casings is smaller than the outer diameter of the top of the adjacent one of the casings.

[0006] Furthermore, the outer diameter of the casing gradually decreases from top to bottom.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] In actual application, during construction, the device is placed at the excavation point, the soil is hollowed out from the bottom of the device, and excavation is carried out according to the top outer diameter of the outermost casing. After the device sinks to the depth of the outermost casing, excavation is carried out according to the top outer diameter and depth of the inner casing connected to the outermost casing. Except for the outermost casing, other casings are sunk to the depth of the inner casing connected to the outermost casing, and the process is carried out step by step. Since the bottom inner diameter of any casing is smaller than the top outer diameter of the adjacent inner casing, that is, the external size of the device is reduced step by step, and after the device is stretched, the horizontal part of the "7"-shaped top of the casing abuts against the horizontal part of the "L"-shaped bottom of the adjacent outer casing, the casing and the adjacent outer casing are partially nested, the casing will not fall from the adjacent outer casing, and the entire excavation depth is under effective protection. The utility model adopts a telescopic protective casing, and the excavation is deepened step by step, so that manual excavation is safe and reliable, and safety accidents are avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0010] Figure 1 It is a top view of the structural schematic diagram of the utility model;

[0011] Figure 2 It is a cross-sectional view of the schematic diagram of the contraction structure of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0013] See also Figure 1 and Figure 2 A digging protection device includes multiple casings, which are nested. The top of any one of the casings is in a "7" shape and the bottom is in an "L" shape. Any one of the casings is slidably connected to an adjacent one of the casings, and the inner diameter of the bottom of any one of the casings is smaller than the outer diameter of the top of the adjacent one of the casings.

[0014] In actual application, during construction, the device is placed at the excavation point, the soil is hollowed out from the bottom of the device, and excavation is carried out according to the top outer diameter of the outermost casing. After the device sinks to the depth of the outermost casing, excavation is carried out according to the top outer diameter and depth of the inner casing connected to the outermost casing. Except for the outermost casing, other casings are sunk to the depth of the inner casing connected to the outermost casing, and the process is carried out step by step. Since the bottom inner diameter of any casing is smaller than the top outer diameter of the adjacent inner casing, that is, the external size of the device is reduced step by step, and after the device is stretched, the horizontal part of the "7"-shaped top of the casing abuts against the horizontal part of the "L"-shaped bottom of the adjacent outer casing, the casing and the adjacent outer casing are partially nested, the casing will not fall from the adjacent outer casing, and the entire excavation depth is under effective protection. The utility model adopts a telescopic protective casing, and the excavation is deepened step by step, so that manual excavation is safe and reliable, and safety accidents are avoided.

[0015] See also Figure 1 and Figure 2 , the outer diameter of the casing gradually decreases from top to bottom. In this embodiment, since it is necessary to hollow out the soil from the bottom of the device, there will be construction errors. The outer diameter of the casing gradually decreases from top to bottom, which can increase the tolerance for construction and make construction more convenient.

[0016] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An excavation protection device, characterized in that: It comprises a plurality of casings, which are nested, the top of any casing is in a "7" shape and the bottom is in an "L" shape, any casing is slidably connected to an adjacent casing, and the inner diameter of the bottom of any casing is smaller than the outer diameter of the top of the adjacent casing inside.

2. The excavation protection device according to claim 1, characterized in that: The outer diameter of the casing gradually decreases from top to bottom.

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