Small building construction excavating tool for narrow spaces

Abstract

The utility model discloses a small building construction excavation tool suitable for narrow space, including small excavator, the handrail outside fixed connection of small excavator top end left side has controller, through setting's two -way thread shaft, sliding block, inner rod, sleeve rod, fixed plate, fixed cover and positioning nail, when building construction excavation operation is carried out through device in narrow space, control motor drives two -way thread shaft and sliding block screw joint, further through inner rod and sleeve rod to fixed plate and promote, when fixed plate will through first spring to fixed cover and promote, when fixed cover is pushed to and two side wall body contact, through fixed plate and promote continuously, make fixed plate compress first spring after drive positioning nail and two side wall body close contact, can position device, like this guarantee the stability when device uses, and then can avoid the occurrence of safety accident, can improve construction efficiency simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and in particular to a small building construction excavation tool suitable for narrow spaces. Background Technology

[0002] In modern construction, many scenarios require excavation work in confined spaces, such as pipeline laying in old urban neighborhoods, interior renovation excavation of buildings, foundation construction in narrow alleys, and partial excavation of basements. Traditional large excavating equipment, due to its bulky size, cannot enter these confined spaces. Therefore, small construction excavation tools suitable for confined spaces have emerged. These small construction excavation tools, such as mini excavators, with their compact and flexible characteristics, can easily enter narrow areas and complete various excavation tasks. They can be equipped with various attachments, such as hydraulic breakers and grab buckets, to meet different construction needs, greatly improving the convenience and flexibility of construction. However, these small excavation tools suffer from poor stability in actual use. Due to the special working environment of confined spaces, the ground space is limited and may be uneven. The tracks of small excavators have a relatively small contact area with the ground, making them prone to slipping and tilting. At the same time, the vibration and force generated during excavation will further affect their stability, leading to a decrease in excavation accuracy and even causing safety accidents, threatening the lives of operators and the normal operation of equipment. In addition, in confined spaces, small excavators lack sufficient support points to maintain balance. When performing deep excavation or excavating hard soil, the machine body will shake due to uneven force, reducing construction efficiency and potentially damaging surrounding walls, ground and other structures. Therefore, to address the above problems, a small construction excavator suitable for confined spaces is proposed. Utility Model Content

[0003] The technical problem to be solved by this utility model overcomes the existing defects and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A small construction excavation tool suitable for confined spaces includes a mini excavator. A controller is fixedly connected to the outside of the handle on the top left side of the mini excavator. A fixed base is contacted on the outside of the track guards of the mini excavator. A motor is fixedly connected to the left end of the inner side of the fixed base. A bidirectional threaded shaft with opposite thread directions on both sides is fixedly connected to the end of the motor's main shaft, and the bidirectional threaded shaft is rotatably connected to the fixed base. A slider that is slidably connected to the fixed base is helically connected to the outside of the bidirectional threaded shaft. A battery is fixedly connected to one end of the fixed base. An inner rod is rotatably connected to one end of the slider via a rotating shaft. A sleeve rod is slidably connected to one end of the inner rod. A fixed plate is rotatably connected to the other end of the sleeve rod via a rotating shaft. Evenly distributed positioning pins are fixedly connected to one side of the fixed plate. A first spring with one end in contact with the fixed plate is provided on the outside of each positioning pin.

[0006] As a further improvement of this utility model, both the left and right ends of the outer side of the fixed seat are spirally connected with positioning bolts, and the positioning bolts penetrate the fixed seat. The positioning bolts are spirally connected to the track guard plate of the mini excavator.

[0007] As a further improvement of this utility model, a control switch is fixedly connected to the other end of the outer side of the slider, and the control switch is in contact with the fixed base.

[0008] As a further improvement of this utility model, a fixing cover that contacts the fixing seat is slidably connected to the outside of the fixing plate, and a uniformly distributed through hole is opened on one side of the fixing cover, and the other end of the first spring contacts the fixing cover.

[0009] As a further improvement of this utility model, a second spring is fixedly connected to one end of the inner rod, and a pressure block is fixedly connected to the other end of the second spring. A pressure sensor is fixedly connected to one end of the outer side of the pressure block, and both the pressure block and the pressure sensor are in contact with the sleeve rod.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] 1. A small construction excavation tool suitable for confined spaces. It features a bidirectional threaded shaft, slider, inner rod, sleeve rod, fixed plate, fixed cover, and positioning pins. When excavating in narrow spaces, the motor drives the bidirectional threaded shaft to connect with the slider, which in turn pushes the fixed plate via the inner rod and sleeve rod. The fixed plate, in turn, pushes the fixed cover via a first spring. When the fixed cover contacts the walls on both sides, the fixed plate continues to be pushed, further compressing the first spring and causing the positioning pins to make tight contact with the walls. This positioning ensures the stability of the device during use, preventing accidents and improving construction efficiency.

[0012] 2. A small construction excavation tool suitable for narrow spaces. It consists of an inner rod, a sleeve rod, a second spring, a pressure block, and a pressure sensor. As the inner rod and sleeve rod push the fixing plate, compressing the first spring and causing the positioning pin to make tight contact with the walls on both sides, the inner rod continuously compresses the second spring. This compression, in turn, causes the pressure block to continuously press against the pressure sensor, increasing the pressure value sensed by the sensor. When the pressure value reaches a set range, the motor automatically stops after the device completes positioning. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] Figure 1 This is a schematic diagram of the overall structure of the small building construction excavation tool of this utility model, which is suitable for use in narrow spaces.

[0015] Figure 2 This is a cross-sectional view of the mounting base for a small construction excavation tool suitable for narrow spaces according to this utility model.

[0016] Figure 3 This is a cross-sectional schematic diagram of the sleeve rod of the small building construction excavation tool applicable to narrow spaces according to this utility model.

[0017] In the diagram: 1. Mini excavator; 2. Controller; 3. Mounting base; 4. Positioning bolt; 5. Motor; 6. Double-threaded shaft; 7. Slider; 8. Control switch; 9. Battery; 10. Inner rod; 11. Sleeve rod; 12. Mounting plate; 13. Mounting cover; 14. Positioning pin; 15. First spring; 16. Second spring; 17. Pressure block; 18. Pressure sensor. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the present invention. In order to better illustrate the specific embodiments of the present invention, some parts in the drawings may be omitted, enlarged or reduced, and do not represent the actual product size. It is understandable for those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1

[0020] like Figure 1-3 As shown, a small construction excavation tool suitable for narrow spaces includes a small excavator 1. A controller 2 is fixedly connected to the outside of the handle on the top left of the small excavator 1. A fixed seat 3 is in contact with the outside of the track guard plate of the small excavator 1. A motor 5 is fixedly connected to the left end of the inner side of the fixed seat 3. A bidirectional threaded shaft 6 with opposite thread directions on both sides is fixedly connected to the end of the main shaft of the motor 5, and the bidirectional threaded shaft 6 is rotatably connected to the fixed seat 3. A slider 7 is helically connected to the outside of the bidirectional threaded shaft 6 and slidably connected to the fixed seat 3. A battery 9 is fixedly connected to one end of the outside of the fixed seat 3. An inner rod 10 is rotatably connected to one end of the outside of the slider 7 through a rotating shaft. A sleeve rod 11 is slidably connected to one end of the outside of the inner rod 10. A fixed plate 12 is rotatably connected to the other end of the sleeve rod 11 through a rotating shaft. A positioning pin 14 is fixedly connected to one side of the fixed plate 12. A first spring 15 with one end in contact with the fixed plate 12 is provided on the outside of the positioning pin 14.

[0021] Example 2

[0022] like Figure 1-2 As shown, in order to solve the problem of inconvenience in connecting the mounting base 3 to the mini excavator 1, positioning bolts 4 are spirally connected to both the left and right ends of the outer side of the mounting base 3, and the positioning bolts 4 penetrate the mounting base 3. The positioning bolts 4 are spirally connected to the track guard plate of the mini excavator 1. The mounting base 3 is fixed to the track guard plate of the mini excavator 1 by the positioning bolts 4, which makes it convenient to connect the mounting base 3 to the mini excavator 1.

[0023] Example 3

[0024] like Figure 2 As shown, in order to solve the problem that it is not convenient to automatically stop the motor 5 when the control motor 5 reverses and resets the positioning pin 14 on the outside of the fixing plate 12, a control switch 8 is fixedly connected to the other end of the slider 7, and the control switch 8 is in contact with the fixing seat 3. When the control motor 5 reverses and resets the positioning pin 14 on the outside of the fixing plate 12, the control switch 8 is triggered by the control switch 8 when the motor 5 drives the bidirectional threaded shaft 6 to connect with the slider 7, which facilitates the automatic control of stopping the motor 5.

[0025] Example 4

[0026] like Figure 1-2 As shown, in order to solve the problem that the positioning pin 14 cannot be prevented from injuring people after resetting the positioning pin 14, a fixing cover 13 that contacts the fixing seat 3 is slidably connected to the outside of the fixing plate 12, and a uniformly distributed through hole is opened on one side of the fixing cover 13. The other end of the first spring 15 contacts the fixing cover 13. By setting the fixing cover 13 on the outside of the positioning pin 14, when the positioning pin 14 is retracted into the fixing cover 13 after resetting, the positioning pin 14 can be prevented from injuring people.

[0027] Example 5

[0028] like Figure 3 As shown, in order to solve the problem that it is not easy to automatically stop the motor 5 after the control fixing plate 12 drives the positioning nail 14 to make close contact with the two side walls, one end of the inner rod 10 is fixedly connected to a second spring 16, and the other end of the second spring 16 is fixedly connected to a pressure block 17. One end of the outer side of the pressure block 17 is fixedly connected to a pressure sensor 18, and both the pressure block 17 and the pressure sensor 18 are in contact with the sleeve rod 11. After the control fixing plate 12 drives the positioning nail 14 to make close contact with the two side walls, the inner rod 10 continuously compresses the second spring 16, which further causes the pressure block 17 to continuously press the pressure sensor 18. When the pressure value sensed by the pressure sensor 18 reaches the set range, it is convenient to automatically stop the motor 5.

[0029] In this embodiment, when performing construction excavation operations in a narrow space using the device, after the fixing seat 3 is positioned on the track guard plate of the mini excavator 1 by the positioning bolt 4, the sensing range of the pressure sensor 18 is set by the controller 2. Then, the controller 2 controls the motor 5 to drive the bidirectional threaded shaft 6 with opposite thread directions on both sides to be helically connected to the slider 7. Further, the fixing plate 12 is pushed by the inner rod 10 and the sleeve rod 11. At this time, the fixing plate 12 will push the fixing cover 13 by the first spring 15. When the fixing cover 13 is pushed to contact the walls on both sides, the fixing plate 12 continues to be pushed, further compressing the first spring 15 and causing the positioning pin 14 to pass through the fixing cover 13 and the walls on both sides. The close contact with the wall allows for positioning of the device, ensuring its stability during use. As the inner rod 10 and sleeve rod 11 push the fixing plate 12, further compressing the first spring 15 and causing the positioning pin 14 to make close contact with the walls on both sides, the inner rod 10 continuously compresses the second spring 16. This continuous compression of the second spring 16 by the inner rod 10 causes the pressure block 17 to continuously press against the pressure sensor 18, increasing the pressure value sensed by the pressure sensor 18. When the pressure value sensed by the pressure sensor 18 reaches the set range, the motor 5 is automatically stopped after the device is positioned, allowing the small excavator 1 to perform excavation work.

[0030] The above are preferred embodiments of the present invention. The basic principles, main features, and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope thereof. All such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small construction excavation tool suitable for confined spaces, including a small excavator (1), characterized in that: A controller (2) is fixedly connected to the outside of the handle on the left side of the top of the mini excavator (1). A fixed seat (3) is in contact with the outside of the track guard plate of the mini excavator (1). A motor (5) is fixedly connected to the left side of the inner side of the fixed seat (3). A bidirectional threaded shaft (6) with opposite thread directions on both sides is fixedly connected to the end of the main shaft of the motor (5). The bidirectional threaded shaft (6) is rotatably connected to the fixed seat (3). A slider (7) is helically connected to the outside of the bidirectional threaded shaft (6) and slidably connected to the fixed seat (3). A battery (9) is fixedly connected to one end of the outside of the fixed seat (3). An inner rod (10) is rotatably connected to one end of the outer side of the slider (7) through a rotating shaft. A sleeve rod (11) is slidably connected to one end of the outer side of the inner rod (10). A fixed plate (12) is rotatably connected to the other end of the sleeve rod (11) through a rotating shaft. A positioning pin (14) is fixedly connected to one side of the fixed plate (12). A first spring (15) with one end in contact with the fixed plate (12) is provided on the outside of the positioning pin (14).

2. The small construction excavation tool suitable for confined spaces according to claim 1, characterized in that: The fixed seat (3) is spirally connected to both the left and right ends of the outer side with positioning bolts (4), and the positioning bolts (4) penetrate the fixed seat (3). The positioning bolts (4) are spirally connected to the track guard plate of the mini excavator (1).

3. The small construction excavation tool suitable for confined spaces according to claim 1, characterized in that: A control switch (8) is fixedly connected to the other end of the slider (7), and the control switch (8) is in contact with the fixed base (3).

4. The small construction excavation tool suitable for confined spaces according to claim 1, characterized in that: The fixing plate (12) is slidably connected to a fixing cover (13) that contacts the fixing seat (3), and a uniformly distributed through hole is provided on one side of the fixing cover (13), and the other end of the first spring (15) contacts the fixing cover (13).

5. The small construction excavation tool suitable for confined spaces according to claim 1, characterized in that: One end of the inner rod (10) is fixedly connected to a second spring (16), and the other end of the second spring (16) is fixedly connected to a pressure block (17). One end of the outer side of the pressure block (17) is fixedly connected to a pressure sensor (18), and both the pressure block (17) and the pressure sensor (18) are in contact with the sleeve rod (11).

Images