Telescopic protection device for manual hole digging pile

Abstract

The utility model discloses a telescopic protection device for a manual hole digging pile, which relates to the technical field of manual hole digging and comprises a telescopic framework, and a roller shutter cylinder and a support frame which are respectively connected with two ends of the telescopic framework, a telescopic protective roller shutter sheet is installed in the roller shutter cylinder, an opening allowing the protective roller shutter sheet to penetrate out is formed in the roller shutter cylinder, and the protective roller shutter sheet penetrates out of the opening of the roller shutter cylinder and is connected with the supporting frame. According to the telescopic protection device, the telescopic protection roller shutter pieces can be driven by folding and unfolding the telescopic framework to adjust the solid protection area, and different protection requirements are met; the telescopic protection device is easy to store, high in folding and unfolding speed and high in installation speed, the whole protection device can be rapidly stored after protection in the current stage is completed, then the whole protection device is rapidly unfolded in the next stage to form solid protection, and then recycling is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of artificial excavation piles, in particular to a telescopic protective device for artificial excavation piles. Background Art

[0002] Manual bored piles refer to the process of using manpower to excavate the space below the ground where reinforced concrete needs to be poured for the foundation construction of buildings, bridges and other projects. Mechanical pile digging cannot be used due to site restrictions and special construction requirements, so manual pile digging is often used. Manual bored piles are generally excavated by winches, and there is a risk of falling debris during the excavation process. Generally, simple protection is set up in the hole with steel pipes and wooden planks to combat the risk of falling debris. This simple protection is difficult to assemble and disassemble, and the construction period is long; and the bored pile itself has a small space, and the simple protection device is inconvenient to operate in the hole, which has a greater impact on the construction workers when they are working in the hole. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a retractable protective device for bored piles, which can adjust the physical protection area by driving the retractable protective rolling shutter piece through the retractable frame to adapt to different protection needs.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A telescopic protective device for manually excavated bored piles comprises a telescopic frame, and a rolling shutter drum and a support frame respectively connected to both ends of the telescopic frame; a telescopic protective rolling shutter piece is installed in the rolling shutter drum, an opening is provided on the rolling shutter drum through which the protective rolling shutter piece can pass, and the protective rolling shutter piece passes through the opening of the rolling shutter drum and is connected to the support frame.

[0006] Furthermore, a winding core is installed in the shutter cylinder, a spiral spring is installed in the winding core, one end of the spiral spring is fixed in the winding core, and the other end passes through the winding core and is connected to the protective shutter piece, and the protective shutter piece is rolled up on the winding core.

[0007] Furthermore, the telescopic frame is located below the protective rolling shutter piece.

[0008] Furthermore, it also includes a cleaning mechanism that can clean the debris on the protective rolling shutter piece.

[0009] Furthermore, the cleaning mechanism includes a bracket, a guide roller arranged on the bracket and in close contact with the bottom of the protective rolling shutter piece, a cleaning roller connected to the bracket through bearings at both ends, bristles installed on the surface of the cleaning roller, and a transmission belt connecting the cleaning roller and the guide roller.

[0010] Furthermore, two conveyor belts are provided, which are respectively located on both sides of the cleaning roller and the guide roller.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The telescopic protective device provided by the utility model can drive the telescopic protective roller shutter piece to adjust the physical protection area by retracting and extending the telescopic frame to adapt to different protection needs; and the telescopic protective device provided by the utility model is easy to store, has a fast folding and extending speed, and a fast installation speed. After the protection of this stage is completed, the entire protective device can be quickly stored, and then quickly unfolded in the next stage to form physical protection, thereby realizing recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the utility model when it is contracted;

[0014] Figure 2 It is a cross-sectional view of the utility model when it is unfolded;

[0015] Figure 3 It is a contraction plane diagram of the telescopic frame in the utility model;

[0016] Figure 4 This is an expanded view of the telescopic frame in the utility model;

[0017] Figure 5 It is a plan view of the utility model when it is contracted;

[0018] Figure 6 This is a state diagram of the utility model when in use.

[0019] Among them, the names corresponding to the figure marks are: 1-manual bored pile wall protection, 2-telescopic frame, 3-rolling roller, 4-protective rolling roller, 5-volute spring, 6-winding core, 7-guide roller, 8-cleaning roller, 9-conveyor belt, 10-brush, 11-support frame. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0021] like Figure 1 and 2 As shown, this embodiment provides a retractable protective device for artificial bored piles, which includes a retractable frame 2, a roller 3 and a support frame 11 respectively connected to both ends of the retractable frame 2; the schematic diagram of the retraction and expansion of the retractable frame 2 is shown in Figure 3 and Figure 4As shown, a winding core 6 is installed in the shutter cylinder 3, a spiral spring 5 is installed in the winding core 6, one end of the spiral spring 5 is fixed in the winding core 6, and the other end passes through the winding core 6 and is connected to a protective shutter sheet 4, the protective shutter sheet 4 is rolled up on the winding core 6, and an opening is provided on the shutter cylinder 3 for the protective shutter sheet 4 to pass through, and the end of the protective shutter sheet 4 not connected to the spiral spring 5 passes through the opening of the shutter cylinder 3 and is connected to the support frame 11. In this embodiment, the telescopic frame plays a supporting role, and the protective shutter sheet 4 is used to block the falling debris, so in actual installation, the telescopic frame 2 is located below the protective shutter sheet 4.

[0022] Since dirt and slag will fall on the protective rolling shutter piece 4 during use, if it is directly retracted into the rolling shutter cylinder 3, dirt and slag will enter the rolling shutter cylinder 3, which is inconvenient to clean. Therefore, in this embodiment, a cleaning mechanism is installed above the rolling shutter cylinder 3, and the mechanism includes a bracket, a guide roller 7 arranged on the bracket and in close contact with the bottom of the protective rolling shutter piece 4, and a cleaning roller 8 connected to the bracket at both ends through bearings. The surface of the cleaning roller 8 is equipped with bristles 10 that can sweep away dirt and slag, and the two ends of the cleaning roller are connected to the guide roller 7 through a transmission belt 9. Since the guide roller 7 is in close contact with the bottom of the protective rolling shutter piece 4, when the protective rolling shutter piece 4 moves, it will drive the guide roller 7 to rotate, and then drive the cleaning roller 8 to rotate through the transmission belt 9, and the dirt and slag on the protective rolling shutter piece 4 is cleaned by the bristles 10 on the cleaning roller 8.

[0023] In actual use, by supporting the rolling shutter drum 3 and the support frame 11 on the artificial bored pile retaining wall 1, as shown in FIG. Figure 5 , 6 As shown, by pulling the support frame 11 outward, the telescopic frame 2 is unfolded, and the protective rolling shutter piece 4 is driven to form a protective entity. When excavating, the protective entity shields the construction personnel to prevent the debris from falling and injuring the construction personnel; at the same time, the excavation channel, the air supply system and the air supply channel can be made available by contracting the protective device. When contracting, the support frame 11 can be pushed to one side of the rolling shutter cylinder 3 manually, and the protective rolling shutter piece 4 can be rolled back into the rolling shutter cylinder 3 under the action of the volute spring 5. In this embodiment, a volute spring 5 with a relatively small elastic coefficient is selected. When the telescopic frame 2 and the protective rolling shutter piece 4 are unfolded, the volute spring 5 can be retracted by relying on the fact that the weight of the telescopic frame 2 and the support frame 11 is not enough.

[0024] The telescopic protective device provided by the utility model can drive the telescopic protective roller shutter piece to adjust the physical protection area by retracting and extending the telescopic frame to adapt to different protection needs; and the telescopic protective device provided by the utility model is easy to store, has a fast folding and extending speed, and a fast installation speed. After the protection of this stage is completed, the entire protective device can be quickly stored, and then quickly unfolded in the next stage to form physical protection, thereby realizing recycling.

[0025] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A retractable protective device for artificial bored piles, characterized in that: The invention comprises a telescopic frame (2), a rolling shutter cylinder (3) and a support frame (11) respectively connected to two ends of the telescopic frame (2); a telescopic protective rolling shutter sheet (4) is installed in the rolling shutter cylinder (3), an opening is provided on the rolling shutter cylinder (3) for allowing the protective rolling shutter sheet (4) to pass through, and the protective rolling shutter sheet (4) passes through the opening of the rolling shutter cylinder (3) and is connected to the support frame (11).

2. A retractable protective device for manually bored piles according to claim 1, characterized in that: A winding core (6) is installed in the rolling curtain cylinder (3), a spiral spring (5) is installed in the winding core (6), one end of the spiral spring (5) is fixed in the winding core (6), and the other end passes through the winding core (6) and is connected to the protective rolling curtain sheet (4), and the protective rolling curtain sheet (4) is rolled up on the winding core (6).

3. A retractable protective device for bored piles according to claim 2, characterized in that: The telescopic frame (2) is located below the protective rolling shutter piece (4).

4. A retractable protective device for manually bored piles according to claim 3, characterized in that: It also comprises a cleaning mechanism capable of cleaning the debris on the protective rolling shutter piece (4).

5. A retractable protective device for manually bored piles according to claim 4, characterized in that: The cleaning mechanism comprises a bracket, a guide roller (7) arranged on the bracket and in close contact with the bottom of the protective rolling shutter sheet (4), a cleaning roller (8) connected to the bracket via bearings at both ends, bristles (10) installed on the surface of the cleaning roller (8), and a transmission belt (9) connecting the cleaning roller (8) and the guide roller (7).

6. A retractable protective device for manually bored piles according to claim 5, characterized in that: The conveyor belts (9) are provided with two belts, which are respectively located on both sides of the cleaning roller (8) and the guide roller (7).

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