Telescopic variable-amplitude deep foundation pit operation integrated device
By designing an integrated deep foundation pit operation device with telescopic and variable amplitude, and utilizing a combination of supports, bearings, rotating frames, and counterweight blocks, the problem of frequent crane transfers and inconsistent weights during deep foundation pit construction was solved, enabling adjustment of the lifting range and improving construction efficiency.
Patent Information
- Application Number
- CN202521229982.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-06-16
AI Technical Summary
In deep foundation pit construction, cranes need to be moved frequently and the weights to be lifted vary. Existing equipment lacks flexibility and efficiency in lifting, especially in small deep foundation pit construction where it is necessary to frequently add and remove heavy components, making the operation cumbersome.
Design an integrated deep foundation pit operation device with telescopic and variable amplitude. Through the combination of brackets, bearings, rotating frame, winch and counterweight blocks, the device can adjust the lifting weight and transfer the device. The maximum lifting weight can be changed by locking the bolt holes and connecting lugs. The device is equipped with guardrails to improve safety.
It improved the lifting range and construction efficiency, reduced the frequency of crane position changes, and enhanced the applicability and safety of the equipment.
Smart Images

Figure CN223920947U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of deep foundation pit construction equipment, and in particular to an integrated deep foundation pit operation device with telescopic and variable amplitude. Background Technology
[0002] Deep foundation pits are a common construction process on construction sites.
[0003] During the excavation of deep foundation pits, cranes are typically used to lift soil from the pit or to hoist external objects into the pit. However, for smaller deep foundation pits, such as roadside excavation or water pipe renovation, construction is usually limited to a specific area. This requires frequent relocation of the crane, and the weight being lifted varies. If the weight exceeds the maximum weight the crane can lift, additional counterweights are needed, which is quite troublesome.
[0004] Based on the above technical issues, an integrated device for deep foundation pit operations with expandable and variable amplitude is proposed. Summary of the Invention
[0005] In view of this, the main purpose of this utility model is to provide an integrated deep foundation pit operation device with telescopic and variable amplitude, which is used to solve the above-mentioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: an integrated deep foundation pit operation device with telescopic and variable amplitude, comprising a bottom support frame, a bracket at the upper end and front end of the bottom support frame, a bearing at the top of the bracket, a rotating frame connected to the end of the bearing away from the bracket, a section of arm hinged to the rotating frame, a second section of arm internally telescopically connected to the first section of arm, a winch on one side of the rotating frame, a hoisting rope hanging down along the first and second sections of arm, a hook at the extreme end of the rope, a counterweight block slidably engaged on the upper end face of the bottom support frame, a connecting lug at one end of the counterweight block near the upper end face of the bottom support frame, and multiple sets of bolt holes at both ends of the bottom support frame, the bolt holes and the connecting lug being fixed by fasteners.
[0007] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution, its main features are:
[0008] When in use, this device can perform hoisting operations on deep foundation pits through the bracket, bearing, rotating frame, control box, first boom, second boom, winch and guardrail. When the hoisting weight needs to be adjusted, the maximum weight that this device can hoist can be changed by changing the relative position of the counterweight iron block and the bottom support frame, and then by locking the connecting lugs and bolt holes, thus increasing the hoisting range and the scope of application of this device.
[0009] After hoisting is completed, the counterweight is adjusted to one end close to the support and then locked. The device can then be easily moved through the guardrail.
[0010] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the vertical structure of an embodiment of the present utility model;
[0012] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.
[0013] Explanation of reference numerals in the attached drawings: 1. Bottom support frame; 2. Bracket; 3. Bearing; 4. Rotating frame; 5. Control box; 6. First section boom; 7. Second section boom; 8. Winch; 9. Guardrail; 10. Rotary locking rod; 11. Counterweight block; 12. Connecting lug; 13. Bolt hole. Detailed Implementation
[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.
[0015] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0016] Please see Figures 1 to 2This utility model provides an integrated telescopic boom for deep foundation pit operations, including a bottom support frame 1. A bracket 2 is provided at the upper end and front end of the bottom support frame 1. A bearing 3 is provided at the top of the bracket 2. A rotating frame 4 is connected to the end of the bearing 3 away from the bracket 2. A boom section 6 is hinged to the rotating frame 4. A second boom section 7 is telescopically sleeved inside the boom section 6. The boom section 6 and the second boom section 7 constitute a telescopic boom in the prior art. A winch 8 is provided on one side of the rotating frame 4. The winch 8 is a common hoisting device in the prior art. The hoisting ropes used for hoisting hang down along the first arm 6 and the second arm 7, and hooks are set at the ends of the ropes. The above devices are all existing technologies and will not be described in detail here. The above devices can be used to hoist items inside deep foundation pits. The bearing 3 is also equipped with a rotating locking rod 10 for locking the bearing 3 to prevent it from rotating. The back of the rotating frame 4 is equipped with a control box 5. The control box 5 is fixedly installed on the rotating frame 4 by bolts. It contains a controller, which is electrically connected to the winch 8. The winch 8 can be controlled through the control box 5.
[0017] Multiple sets of bolt holes 13 are provided at both ends of the bottom support frame 1, specifically five sets, with the spacing between any two sets of bolt holes 13 being consistent. The bolt holes 13 are located on the upper surfaces of both ends of the bottom support frame 1, and their direction is from the end of the bracket 2 towards the other end of the bottom support frame 1. A counterweight block 11 is slidably engaged on the upper surface of the bottom support frame 1. Specifically, the counterweight block 11 has grooves at its bottom that fit the frames at both ends of the bottom support frame 1, allowing it to slide on the bottom support frame 1. A connecting lug 12 is provided at one end of the counterweight block 11, near the upper surface of the bottom support frame 1. The support frame 1 slides, so that the connecting ear 12 is aligned with the bolt hole 13 provided on the bottom support frame 1. Then, the bolt hole 13 and the connecting ear 12 are fixed by fasteners, such as bolts. This fixes the position of the counterweight block 11 and the bottom support frame 1. By fixing the connecting ear 12 to different bolt hole 13 positions, the relative position of the counterweight block 11 and the bottom support frame 1 can be changed. Therefore, the weight of the counterweight block 11 can be matched with the weight of the items hoisted by the front end of the winch 8, so that the weight of the counterweight block 11 is greater than the weight of the items hoisted by the winch 8. This eliminates the need to add counterweight blocks to the bottom support frame 1 during hoisting, thus improving construction efficiency.
[0018] The bottom of the bottom support frame 1 is also equipped with several sets of casters. The casters allow the device to be moved flexibly. During construction, the casters can be locked. Since the position of the counterweight block 11 of the device can be flexibly changed, when the device needs to be moved, the counterweight block 11 can be adjusted to be close to the bracket 2 on the bottom support frame 1, which facilitates the movement and allows for flexible construction.
[0019] In addition, this device is also equipped with a guardrail 9, which is used to protect the deep foundation pit during construction, remind construction workers to carry out construction in this area, and improve safety. The guardrail 9 is a foldable fence in the prior art. After being folded, it can be placed directly on the counterweight block 11 and bound to the counterweight block 11 by ropes or other external locking devices to complete the assembly process.
[0020] In summary, in actual use, this device can perform hoisting operations on deep foundation pits through the bracket 2, bearing 3, rotating frame 4, control box 5, first boom 6, second boom 7, winch 8, and guardrail 9. When the hoisting weight needs to be adjusted, the maximum weight that this device can hoist can be changed by changing the relative position of the counterweight block 11 and the bottom support frame 1, and then locking it through the connecting lug 12 and bolt hole 13, thereby increasing the hoisting range and applicability of this device. After the hoisting is completed, the counterweight block 11 can be adjusted to one end closer to the bracket 2 and then locked. The device can then be easily moved through the guardrail 9.
[0021] The above is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A telescopic and variable-amplitude integrated device for deep foundation pit operation, comprising a bottom support frame (1), a bracket (2) provided at the upper end and front end of the bottom support frame (1), a bearing (3) provided at the top of the bracket (2), a rotating frame (4) connected to the end of the bearing (3) away from the bracket (2), a section arm (6) hinged on the rotating frame (4), a second section arm (7) telescopically connected inside the first section arm (6), a winch (8) provided on one side of the rotating frame (4), and a hoisting rope for hoisting hanging down along the first section arm (6) and the second section arm (7), with a hook provided at the extreme end of the rope, characterized in that: The upper end surface of the bottom support frame (1) is slidably connected with a counterweight iron block (11), one end of the counterweight iron block (11) is provided with a connecting lug (12) near the upper end surface of the bottom support frame (1), and a plurality of bolt holes (13) are formed in the two ends of the bottom support frame (1), and the bolt holes (13) and the connecting lug (12) are fixed by fasteners.
2. The integrated device for deep foundation pit work with telescopic amplitude according to claim 1, characterized in that: The bolt holes (13) are formed in five groups, and the distance between two groups of bolt holes (13) is equal.
3. The integrated device for deep foundation pit work with telescopic amplitude according to claim 1, characterized in that: The bearing (3) is provided with a rotation locking rod (10) for locking the bearing (3) to prevent rotation.
4. The integrated device for deep foundation pit work with telescopic amplitude according to claim 1, characterized in that: The back of the rotating frame (4) is provided with a control box (5) which is fixedly installed on the rotating frame (4) by bolts, and the inside of the control box (5) is provided with a controller which is electrically connected with the winch (8), and the winch (8) can be controlled through the control box (5).
5. The integrated device for deep foundation pit work with telescopic amplitude according to claim 1, characterized in that: The bolt holes (13) are formed in the upper end surfaces of the two ends of the bottom support frame (1), and the opening direction is along the end of the support frame (2) to the other end of the bottom support frame (1).
6. The integrated device for deep excavation with telescopic jib according to claim 1, characterized in that: The fastener is a bolt.
7. The integrated device for deep excavation with telescopic jib according to claim 1, characterized in that: The bottom of the counterweight iron block (11) is provided with a groove matched with the frame on the upper end surface of the two ends of the bottom support frame (1), and the counterweight iron block (11) is slidably connected with the bottom support frame (1) through the groove.
8. The integrated device for deep foundation pit work with telescopic amplitude according to claim 7, characterized in that: By sliding the counterweight iron block (11) on the bottom support frame (1), the connecting lug (12) is opposite to the bolt hole (13) provided on the bottom support frame (1), the position of the counterweight iron block (11) and the bottom support frame (1) is fixed, and the relative position of the counterweight iron block (11) and the bottom support frame (1) can be changed by fixing the connecting lug (12) and the different bolt holes (13).
9. The integrated device for deep excavation with telescopic jib according to claim 1, characterized in that: The bottom of the bottom support frame (1) is provided with a universal wheel.
10. The integrated device for deep excavation with telescopic jib according to claim 1, characterized in that: One side of the bottom support frame (1) is provided with a protective fence (9).