Foundation pit excavation presplitting blasting blast hole charging device

Abstract

The utility model relates to the technical field of foundation pits, and discloses a foundation pit excavation presplitting blasting blast hole charging device which comprises a protective sleeve, the outer surface of the protective sleeve is slidably connected with a plurality of limiting plates distributed in the circumferential direction, and the side faces, close to each other, of the multiple limiting plates are each fixedly connected with two springs; and the other ends of the plurality of springs are fixedly connected with the protective sleeve. According to the foundation pit excavation pre-splitting blasting blast hole charging device, external stones can be blocked by installing the protective sleeve, the external stones are prevented from entering a foundation pit, the protective sleeve can be stably prevented from entering the foundation pit through cooperation of the limiting plate, and the safety of the foundation pit is improved. The explosive can be stably placed through cooperation of the installation sliding rod and the clamping piece, meanwhile, the explosive can be placed in the deep position of a foundation pit, after installation is completed, the explosive can be installed only by pulling the traction rope to make contact with clamping of the explosive, convenience and safety are achieved, and therefore the overall practicability is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of foundation pits, in particular to a pre-splitting blasting hole charging device for foundation pit excavation. BACKGROUND

[0002] A foundation pit is a soil pit excavated at a foundation design position according to a foundation elevation and a foundation plane size. Before excavation, an excavation scheme is determined according to geological and hydrological data in combination with the situation of nearby buildings, and waterproofing and drainage work is done. For a shallow excavation, a sloping method can be used to stabilize the soil slope, and the slope size is determined according to relevant construction regulations. For a deep excavation and adjacent buildings, a foundation pit wall supporting method, a sprayed concrete protection wall method, and even a method such as an underground continuous wall and columnar bored pile interlocking can be used to prevent the collapse of the outer soil layer. For nearby buildings without influence, a well point method can be used to lower the underground water level, and a sloping method can be used for open excavation. In cold regions, a natural cold air freezing method can be used for excavation, and the like.

[0003] The existing patent (announcement number: CN214537623U) discloses a foundation pit blasting hole combined charging structure, which comprises a supporting plate, a fixed plate, a fixed block and a limiting block. The fixed block is arranged on the inner side of the supporting plate, the fixed block is rotatably connected with a fixed rod at the bottom end, the fixed block is provided with a clamping groove, the limiting block is slidably connected with the supporting plate at the left end and the right end, the limiting block is clamped with the fixed block through the clamping groove, the bottom end of the supporting plate is fixedly connected with an electric telescopic rod, the bottom end of the electric telescopic rod is fixedly connected with the fixed plate, the top end of the fixed rod is fixedly connected with the fixed block, the inner side of the fixed plate is provided with a sliding block, the fixed rod is in contact with the foundation, the gripping force between the supporting plate and the foundation is increased, the fixing is more stable, when the limiting block no longer limits the fixed block, the fixed block moves upward under the action of the reset spring to return to the original position, the fixed rod is withdrawn into the inner side of the supporting plate, and the recovery and taking of the device are facilitated.

[0004] The above file can improve stability during use, and facilitate the recovery and taking of the device, but when charging, the medicine cannot be completely placed into the blasting hole, thereby affecting the blasting effect. Practical new type content

[0005] In view of the deficiencies of the prior art, the application provides a pre-splitting blasting hole charging device for foundation pit excavation, which has the advantages of improving practicality and solves the problems in the background art.

[0006] To achieve the above object, the application provides the following technical scheme: a foundation pit excavation pre-splitting blasting blast hole charging device, comprising a protective sleeve, the outer surface of the protective sleeve is slidably connected with a plurality of circumferentially distributed limiting plates, the side surface of the plurality of limiting plates close to each other is fixedly connected with two springs, the other end of the plurality of springs is fixedly connected with the protective sleeve, the inside of the protective sleeve is provided with a sliding rod, the right end of the sliding rod is fixedly connected with a plurality of circumferentially distributed clamping pieces, the inside of the sliding rod is provided with a cavity one, the outer surface of the plurality of clamping pieces is fixedly connected with a traction rope, and the traction rope is located in the inside of the cavity one.

[0007] Through the above scheme, the stones in the outside world can be blocked by installing the protective sleeve, so that the stones in the outside world cannot enter the foundation pit, and the protective sleeve can be stably placed in the foundation pit through the cooperation of the limiting plates. The existence of stones may increase the uncertainty and risk in the construction process. If the stones are thrown out when the explosives are detonated, it may cause harm to the construction personnel. Preventing stones from entering the foundation pit can reduce safety accidents caused by stone projection and protect the life safety of construction personnel.

[0008] The inner wall of the protective sleeve is rotatably connected with a rotating sleeve, the outer surface of the rotating sleeve is fixedly connected with a plurality of rope two, and the plurality of rope two is fixedly connected with the limiting plate close to it. The installation of the rotating sleeve can pull the rope two, so that the rope two can pull the limiting plate, so that the limiting plate can be separated from the inner wall of the foundation pit, thereby facilitating the removal of the protective sleeve after installation.

[0009] The outer surface of the plurality of limiting plates is fixedly connected with a plurality of anti-skid plates. The installation of the plurality of anti-skid plates can increase the resistance between the limiting plate and the inner wall of the foundation pit, so that the protective sleeve can be stably placed in the foundation pit, and the protective sleeve can prevent stones in the outside world from entering the foundation pit, thereby achieving the effect of protection.

[0010] The plurality of springs are in a reset state. The installation of the spring can push the limiting plate into contact with the inner wall of the foundation pit through the deformation force of the spring, so that the protective sleeve remains in a stable state, and the protective sleeve can prevent stones and other objects in the outside world from entering the foundation pit and affecting the installation of the explosives.

[0011] The protective sleeve is made of plastic material. Compared with the metal sleeve, the plastic sleeve has the characteristics of light weight, which makes the plastic sleeve more convenient to carry and install, reduces the labor intensity of manual carrying, and improves the work efficiency, especially in the case of frequent movement or long-time holding.

[0012] The inner wall of the rotating sleeve is provided with a monitoring module. Through real-time monitoring pictures, workers can quickly find problems in the installation process and make timely adjustments and guidance, reducing the risk of explosive installation, thereby improving the efficiency of the overall installation work.

[0013] The cavity two is arranged between the rotating sleeve and the protective sleeve. The cavity two can reserve space for the winding rope two, so that the rope two can be pulled by rotating the rotating sleeve, and the rope two can pull the limiting plate, so that the multiple limiting plates can approach each other to separate from the inner wall of the foundation pit.

[0014] The clamping pieces are made of elastic material. The elastic material of the clamping pieces can clamp the explosive, keep the explosive in a stable state, and pull the traction rope after placement to release the clamping pieces and install the explosive into the foundation pit.

[0015] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0016] The explosive charging device for foundation pit excavation pre-splitting blasting blast hole can block the stones from the outside, prevent the stones from entering the foundation pit, and stably place the protective sleeve in the foundation pit through the cooperation of the limiting plate. The cooperation of the sliding rod and the clamping piece can realize stable placement of the explosive, and the explosive can be placed in the deep part of the foundation pit. After installation, only the clamping of the traction rope is needed to contact the explosive, and the installation of the explosive is completed, which is convenient and safe, thereby improving the overall practicality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a sectional view of the overall structure of the present application;

[0018] Figure 2 It is an enlarged schematic view of structure A of the present application; Figure 1

[0019] Figure 3 It is a schematic view of the overall structure of the present application;

[0020] Figure 4 It is a schematic view of the clamping piece structure of the present application;

[0021] Figure 5 It is a schematic view of the protective sleeve structure of the present application.

[0022] In the drawings:

[0023] 1, protective sleeve; 2, limiting plate; 3, spring; 4, sliding rod; 5, clamping piece; 6, cavity one; 7, traction rope; 8, rotating sleeve; 9, rope two; 10, anti-skid plate; 11, monitoring module; 12, cavity two.​ DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0025] Please refer to Figure 1 , Figure 2 and Figure 3 A blasting hole charging device for foundation pit excavation presplitting blasting in the embodiment comprises a protective sleeve 1, a plurality of limiting plates 2 are circumferentially distributed and slidably connected to the outer surface of the protective sleeve 1, two springs 3 are fixedly connected to each side surface of the plurality of limiting plates 2, the other ends of the plurality of springs 3 are fixedly connected with the protective sleeve 1, a sliding rod 4 is arranged in the protective sleeve 1, a plurality of clamping pieces 5 are fixedly connected to the right end of the sliding rod 4, a cavity one 6 is arranged in the sliding rod 4, a traction rope 7 is fixedly connected to the outer surface of the plurality of clamping pieces 5 and located in the cavity one 6. The protective sleeve 1 can block the stones from the outside, so as to prevent the stones from entering the foundation pit. The limiting plates 2 can stably prevent the protective sleeve 1 from entering the foundation pit. The sliding rod 4 and the clamping pieces 5 can stably place the explosive. The explosive can be placed in the deep part of the foundation pit. After installation, the traction rope 7 is pulled to contact the clamping of the explosive, so as to complete the installation of the explosive. The existence of the stones may increase the uncertainty and risk in the construction process. If the stones are thrown out when the explosive is detonated, the construction personnel may be injured. Preventing the stones from entering the foundation pit can reduce the safety accidents caused by the throwing of the stones and protect the life safety of the construction personnel, thereby improving the overall practicability.

[0026] Please refer to Figure 1 , Figure 3 and Figure 4The inner wall of the protective sleeve 1 is rotationally connected with a rotating sleeve 8, the outer surface of the rotating sleeve 8 is fixedly connected with a plurality of rope twos 9, the plurality of rope twos 9 are fixedly connected with the limiting plates 2 close to the rope twos 9, the installation of the rotating sleeve 8 can pull the rope twos 9, so that the rope twos 9 can pull the limiting plates 2, so that the limiting plates 2 can be separated from the inner wall of the foundation pit, thereby facilitating the removal of the protective sleeve 1 after installation, the outer surfaces of the plurality of limiting plates 2 are fixedly connected with a plurality of anti-skid plates 10, the installation of the plurality of anti-skid plates 10 can increase the resistance between the limiting plates 2 and the inner wall of the foundation pit, so that the protective sleeve 1 can be stably placed in the foundation pit, so that the protective sleeve 1 can prevent stones from the outside from entering the foundation pit, thereby achieving the effect of protection, the plurality of springs 3 are in a reset state, the installation of the springs 3 can push the limiting plates 2 to contact the inner wall of the foundation pit through the deformation force of the springs 3, so that the protective sleeve 1 remains in a stable state, and the protective sleeve 1 can prevent stones from the outside from entering the foundation pit and affecting the installation of the explosive.

[0027] Please refer to Figure 1 , Figure 4 and Figure 5 , the protective sleeve 1 is made of plastic material, the plastic sleeve has the characteristics of light weight compared with the metal sleeve, which makes the plastic sleeve more convenient to carry and install, reduces the labor intensity of manual carrying, and also improves the work efficiency, especially in the case of frequent movement or long time holding, the inner wall of the rotating sleeve 8 is provided with a monitoring module 11, through the real-time monitoring picture, the worker can quickly find the problems in the installation process and make timely adjustment and guidance, thereby reducing the risk of explosive installation and improving the efficiency of the whole installation work, the cavity two 12 is arranged between the rotating sleeve 8 and the protective sleeve 1, the cavity two 12 can reserve space for winding the rope two 9, so that the rope two 9 can be pulled by rotating the rotating sleeve 8, so that the limiting plates 2 can be pulled by the rope two 9, so that the plurality of limiting plates 2 can be close to each other to separate from the inner wall of the foundation pit, the plurality of clamping pieces 5 are made of elastic material, the clamping pieces 5 made of elastic material can clamp the explosive, so that the explosive can remain in a stable state, and the clamping pieces 5 can be pulled to pull the clamping pieces 5 after the placement is completed, so that the clamping pieces 5 release the explosive and install it into the foundation pit.

[0028] The pit excavation presplitting blasting borehole charging device in the embodiment can block the stones from the outside, avoid the stones from entering the pit, and stably prevent the protective sleeve 1 from entering the pit through the cooperation of the limiting plate 2. The stable placement of the explosive can be realized through the cooperation of the installation of the sliding rod 4 and the clamping piece 5, and the explosive can be placed in the deep part of the pit. After installation, the explosive can be installed by pulling the traction rope 7 to contact the clamping of the explosive. It is convenient and safe. The existence of stones may increase the uncertainty and risk in the construction process. If the stones are thrown out when the explosive is detonated, it may cause harm to the construction personnel. Preventing stones from entering the pit can reduce safety accidents caused by stone projection and protect the life safety of construction personnel, thereby improving the overall practicality.

[0029] The working principle of the above embodiment is as follows: first, place the explosive between the multiple clamping pieces 5, clamp the explosive through the elastic deformation force of the clamping pieces 5, then rotate the rotating sleeve 8, so that the rotating sleeve 8 can wind the rope two 9, the rope two 9 can pull the limiting plate 2 to reset, the limiting plate 2 can compress the spring 3, then place the protective sleeve 1 into the pit, then loosen the rotating sleeve, release the limiting of the limiting plate 2, the deformation force of the spring 3 can push the limiting plate 2 to contact the inner wall of the pit, the protective sleeve 1 can be stably placed in the pit, multiple anti-skid plates 10 can be installed to increase the resistance between the limiting plate 2 and the inner wall of the pit, so that the protective sleeve 1 can be stably placed in the pit, the protective sleeve 1 can prevent stones from the outside from entering the pit, thereby achieving the effect of protection. When the fixing of the protective sleeve 1 is completed, the sliding rod 4 is deeply inserted into the rotating sleeve 8, and the sliding rod 4 is slid in the rotating sleeve. Then, the explosive is deeply inserted into the deep part of the pit. When the explosive is placed, the traction rope 7 is pulled to pull the clamping piece 5, so that the multiple clamping pieces 5 are away from each other, thereby releasing the explosive, and the explosive can be stably placed in the pit. It is convenient and safe, thereby improving the overall practicality. The installation of the monitoring module 11 can realize real-time monitoring of the picture, the staff can quickly find problems in the installation process and make timely adjustments and guidance, thereby reducing the risk of explosive installation and improving the efficiency of the overall installation work.

[0030] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the enclosed claims. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the application can be varied in a multitude of ways. Such alterations, many of which will be apparent to those skilled in the art, can be based on current technology, and as such, this application should not be limited to the particular embodiments described herein, but should be understood to include all embodiments that are within the scope of the appended claims and their equivalents.

[0031] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pre-splitting blasting borehole charging device for foundation pit excavation, comprising a protective sleeve (1), characterized in that: The outer surface of the protective sleeve (1) is slidably connected with a plurality of circumferentially distributed limiting plates (2). Two springs (3) are fixedly connected to one side of each of the plurality of limiting plates (2) that are close to each other. The other ends of the plurality of springs (3) are fixedly connected to the protective sleeve (1). The protective sleeve (1) is provided with a sliding rod (4). The right end of the sliding rod (4) is fixedly connected with a plurality of circumferentially distributed clamping pieces (5). The sliding rod (4) is provided with a cavity (6). The outer surface of the plurality of clamping pieces (5) is fixedly connected with a traction rope (7). The traction rope (7) is located inside the cavity (6).

2. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 1, characterized in that: The inner wall of the protective sleeve (1) is rotatably connected to a rotating sleeve (8), and the outer surface of the rotating sleeve (8) is fixedly connected to multiple ropes (9), and the multiple ropes (9) are fixedly connected to the limiting plate (2) that is close to them.

3. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 1, characterized in that: Multiple anti-slip plates (10) are fixedly connected to the outer surfaces of the multiple limiting plates (2).

4. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 1, characterized in that: All of the springs (3) are in the reset state.

5. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 1, characterized in that: All protective sleeves (1) are made of plastic.

6. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 2, characterized in that: A monitoring module (11) is installed on the inner wall of the rotating sleeve (8).

7. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 2, characterized in that: A cavity two (12) is provided between the rotating sleeve (8) and the protective sleeve (1).

8. The pre-splitting blasting borehole charging device for foundation pit excavation according to claim 1, characterized in that: All of the clamping pieces (5) are made of elastic material.

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