Foundation pit depth measuring device for road maintenance
The highway maintenance foundation pit depth measuring device addresses the challenge of measuring central pit depths in large pits with a sliding arm mechanism, ensuring accurate and convenient depth determination.
Patent Information
- Application Number
- CN202420344579.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-26
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-26
AI Technical Summary
Existing highway maintenance foundation pit depth measuring devices struggle to accurately measure the depth near the center of large foundation pits due to their limited maneuverability and measurement range.
A highway maintenance foundation pit depth measuring device with a sliding connecting arm mechanism, comprising a fixed arm, a first movable arm, a second movable arm, and a driving arm, which allows the device to extend and maneuver to the center of the foundation pit, enabling accurate depth measurement through a counterweight and chain system.
Enables precise measurement of foundation pit depths by allowing the device to reach the center of large pits, improving measurement accuracy and convenience.
Smart Images
Figure CN222206511U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of highway maintenance, in particular to a highway maintenance foundation pit depth measuring device. Background Art
[0002] The foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane dimensions. Before excavation, the excavation plan should be determined based on geological and hydrological data and the conditions of nearby buildings on site, and waterproofing and drainage work should be done well. If the excavation is not deep, the slope method can be used to make the earth slope stable. The slope size is determined according to relevant construction regulations. If the excavation is deeper or there are buildings nearby, the foundation pit wall support method and shotcrete wall protection method can be used. Large foundation pits may even use underground continuous walls and column-type bored cast-in-place pile interlocking methods.
[0003] The patent with application number: CN202023097368.4 discloses a foundation pit depth measuring device for foundation pit monitoring. The utility model has a novel structure and a reasonable design. The coordinated use of universal wheels and a stop mechanism can easily move and fix the foundation pit depth measuring device for foundation pit monitoring, which is more convenient and quicker. The setting of the electric push rod can make pulley two move toward the center of the foundation pit, and can measure foundation pits with slopes, which is more convenient. The coordinated use of the motor, pulley one, pulley two, winding roller and weight block can control the elongation and shortening of the measuring ruler, and then measure the depth of the foundation pit. The coordinated use of the alarm and the pressure switch can remind the staff that the weight has touched the bottom, which is more convenient. The coordinated use of the camera and the display screen can easily see the measurement depth, which is more convenient and quick, the measurement is more accurate, and the practicality is good.
[0004] When measuring with the equipment, it is necessary to perform multiple measurements at different positions of the foundation pit. If the foundation pit area is large, the equipment cannot measure the depth near the center of the foundation pit. Therefore, a highway maintenance foundation pit depth measuring device is proposed. Utility Model Content
[0005] The purpose of the utility model is to provide a business-oriented and customizable dynamic data model of a workflow engine to solve the problems raised in the above-mentioned background technology.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a highway maintenance foundation pit depth measuring device, comprising a main body, a walking wheel is arranged at the bottom of the main body, a connecting arm is arranged on the upper surface of the main body, the connecting arm is fixedly connected to a connecting seat at one end away from the main body, a winding roller is rotatably arranged inside the connecting seat, the winding roller is connected to a chain, a counterweight is connected to the bottom of the chain, the connecting arm comprises a fixed arm connected to the main body, a first movable arm is movably arranged on the inner surface of the fixed arm, a second movable arm is slidably arranged on the inner surface of the first movable arm, and the connecting seat is fixedly connected to the second movable arm.
[0007] According to the above technical solution, a first rotating seat is rotatably provided at one end of the first movable arm corresponding to the end located inside the fixed arm, an internal thread is provided on the inner circumference of the fixed arm, and an external thread is provided on the outer circumference of the first rotating seat, which is screwed to the fixed arm; a second rotating seat is rotatably provided at one end of the second movable arm corresponding to the end located inside the first movable arm, an internal thread is provided on the inner circumference of the first movable arm, and an external thread is provided on the outer circumference of the second rotating seat, which is screwed to the first movable arm; a driving arm for driving the first rotating seat and the second rotating seat to rotate is provided inside the connecting arm.
[0008] According to the above technical solution, the first movable arm and the fixed arm are respectively fixedly connected to the limiting ring at one end away from the main body, the outer circumferences of the first movable arm and the second movable arm are respectively provided with limiting grooves extending in the same direction, and the inner circumference of the limiting ring is provided with a limiting block slidably connected to the limiting groove.
[0009] According to the above technical solution, the driving arm includes a plurality of slidably connected driving rods, the outer peripheral surfaces of the driving rods are provided with limiting strips extending in the same direction, the driving rods pass through the end surfaces of the first rotating seat and the second rotating seat, and the inner surfaces of the first rotating seat and the second rotating seat are provided with sliding grooves matching the limiting strips.
[0010] According to the above technical solution, one end of the driving rod away from the main body is fixedly connected with a protrusion.
[0011] Compared with the prior art, the beneficial effect achieved by the utility model is as follows: the utility model sets a main body, on which a connecting arm is set, wherein the connecting arm is formed by slidingly connecting a fixed arm, a first movable arm and a second movable arm, so that when the equipment is in use, the first movable arm and the second movable arm can be driven to slide, driving the connecting seat on the connecting arm to move to the top of the foundation pit, and then the chain is driven to move by driving the winding roller inside the connecting seat to rotate until the counterweight block contacts the bottom of the foundation pit, so that the depth of the foundation pit can be measured. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0013] Figure 1 It is a schematic diagram of the main cross-sectional structure of the utility model;
[0014] Figure 2 It is a schematic diagram of the connecting arm structure of the utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the first rotating seat of the utility model;
[0016] Figure 4 It is a schematic diagram of the driving rod structure of the utility model;
[0017] In the figure: 1-main body, 2-connecting seat, 3-winding roller, 4-chain, 5-fixed arm, 6-first movable arm, 7-second movable arm, 8-first rotating seat, 9-second rotating seat, 10-limiting ring, 11-limiting groove, 12-limiting block, 13-driving rod, 14-limiting strip, 15-slide groove, 16-bump. DETAILED DESCRIPTION
[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only 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 creative work are within the scope of protection of the utility model.
[0019] See also Figure 1-4 The utility model provides a technical solution: a road maintenance foundation pit depth measuring device, including a main body 1, such as Figure 1As shown, a walking wheel (not shown in the figure) is provided at the bottom of the main body 1 to facilitate the movement of the equipment. A connecting arm is provided on the upper surface of the main body 1, and the connecting arm is arranged horizontally. The end of the connecting arm away from the main body 1 is fixedly connected to a connecting seat 2, and a winding roller 3 is rotatably provided inside the connecting seat 2. The winding roller 3 is connected to a chain 4, and a counterweight is connected to the bottom of the chain 4. A driving motor is provided on the connecting seat 2 to drive the winding roller 3 to rotate, so as to drive the counterweight to move through the chain 4. When the counterweight contacts the bottom of the foundation pit, the depth of the foundation pit can be judged by the length of the chain 4 extended. The above measurement The necessary sensors and methods for measuring the depth of the foundation pit have been disclosed in the prior art and will not be elaborated on herein. The connecting arm comprises a fixed arm 5 connected to the main body 1, the inner surface of the fixed arm 5 is movably provided with a first movable arm 6, the inner surface of the first movable arm 6 is slidably provided with a second movable arm 7, the fixed arm 5, the first movable arm 6 and the second movable arm 7 are respectively tubular structures, the connecting seat 2 is fixedly connected to the second movable arm 7, the first movable arm 6 and the second movable arm 7 are controlled to slide, the connecting arm is extended, and the connecting seat 2 is sent to the top of the center of the foundation pit, thereby measuring the depth of the foundation pit.
[0020] Specifically, the first movable arm 6 is rotatably provided with a first rotating seat 8 at one end thereof corresponding to the inner portion of the fixed arm 5. Figure 3 As shown, the first rotating seat 8 is cylindrical and is coaxially arranged with the first movable arm 6. The inner circumferential surface of the fixed arm 5 is provided with an internal thread, and the outer circumferential surface of the first rotating seat 8 is provided with an external thread screwed to the fixed arm 5. The second movable arm 7 is rotatably provided with a second rotating seat 9 corresponding to one end located inside the first movable arm 6. The inner circumferential surface of the first movable arm 6 is provided with an internal thread, and the outer circumferential surface of the second rotating seat 9 is provided with an external thread screwed to the first movable arm 6. Therefore, when the first rotating seat 8 and the second rotating seat 9 rotate synchronously, the first movable arm 6 can slide relative to the fixed arm 5 under the action of thread cooperation, and the second movable arm 7 can slide relative to the first movable arm 6, so that the connecting arm is extended as a whole, and a driving arm for driving the first rotating seat 8 and the second rotating seat 9 to rotate is provided inside the connecting arm, and the driving arm is used to drive the first rotating seat 8 and the second rotating seat 9 to rotate synchronously.
[0021] Specifically, the first movable arm 6 and the fixed arm are respectively fixedly connected to the limiting ring 10 at one end away from the main body 1. The limiting ring 10 is respectively sleeved on the outside of the first movable arm 6 and the second movable arm 7. The outer peripheral surfaces of the first movable arm 6 and the second movable arm 7 are respectively provided with limiting grooves 11 extending in the same direction. The inner peripheral surface of the limiting ring 10 is provided with a limiting block 12 slidably connected to the limiting groove 11. When the first movable arm 6 and the second movable arm 7 slide relative to each other, the limiting block 12 slides inside the limiting groove 11, so that the first movable arm 6 and the second movable arm 7 will not rotate synchronously with the first rotating seat 8 and the second rotating seat 9.
[0022] Specifically, if Figure 4 As shown, the driving arm includes a plurality of slidably connected driving rods 13, the outer peripheral surface of the driving rod 13 is provided with a limiting strip 14 extending in the same direction, the driving rod 13 passes through the end faces of the first rotating seat 8 and the second rotating seat 9, and the inner surfaces of the first rotating seat 8 and the second rotating seat 9 are provided with a sliding groove 15 that cooperates with the limiting strip 14, so that when the driving rod 13 is driven to rotate, the driving rod 13 can drive the first rotating seat 8 and the second rotating seat 9 to rotate synchronously under the action of the limiting strip 14 and the sliding groove 15.
[0023] Specifically, the end of the driving rod 13 away from the main body 1 is fixedly connected with a protrusion 16. Figure 1 As shown, under the action of the protrusion 16, when the connecting arm is extended, the driving rod 13 can be extended accordingly to adapt to the extension of the connecting arm.
[0024] When the utility model is used, the equipment is moved to the vicinity of the foundation pit, and the driving rod 13 is driven to rotate. The driving rod 13 drives the first rotating seat 8 and the second rotating seat 9 to rotate synchronously through the limit bar 14 and the slide groove 15. Under the action of the threaded cooperation, the first movable arm 6 and the second movable arm 7 can be controlled to extend, and the connecting seat 2 is moved to the top of the foundation pit. Then, the counterweight block is driven to move through the chain 4 to measure the depth of the foundation pit.
[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. 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. A road maintenance foundation pit depth measuring device, comprising a main body (1), characterized in that: A walking wheel is arranged at the bottom of the main body (1), a connecting arm is arranged on the upper surface of the main body (1), an end of the connecting arm away from the main body (1) is fixedly connected to a connecting seat (2), a winding roller (3) is rotatably arranged inside the connecting seat (2), the winding roller (3) is connected to a chain (4), a counterweight is connected to the bottom of the chain (4), the connecting arm comprises a fixed arm (5) connected to the main body (1), a first movable arm (6) is movably arranged on the inner surface of the fixed arm (5), a second movable arm (7) is slidably arranged on the inner surface of the first movable arm (6), and the connecting seat (2) is fixedly connected to the second movable arm (7).
2. A road maintenance foundation pit depth measuring device according to claim 1, characterized in that: A first rotating seat (8) is rotatably provided at one end of the first movable arm (6) corresponding to the one located inside the fixed arm (5); an internal thread is provided on the inner circumference of the fixed arm (5); an external thread is provided on the outer circumference of the first rotating seat (8) for being screwed to the fixed arm (5); a second rotating seat (9) is rotatably provided at one end of the second movable arm (7) corresponding to the one located inside the first movable arm (6); an internal thread is provided on the inner circumference of the first movable arm (6); an external thread is provided on the outer circumference of the second rotating seat (9) for being screwed to the first movable arm (6); a driving arm for driving the first rotating seat (8) and the second rotating seat (9) to rotate is provided inside the connecting arm.
3. A road maintenance foundation pit depth measuring device according to claim 2, characterized in that: The ends of the first movable arm (6) and the fixed arm (5) away from the main body (1) are respectively fixedly connected to a limiting ring (10); the outer peripheral surfaces of the first movable arm (6) and the second movable arm (7) are respectively provided with limiting grooves (11) extending in the same direction; the inner peripheral surface of the limiting ring (10) is provided with a limiting block (12) slidably connected to the limiting groove (11).
4. A road maintenance foundation pit depth measuring device according to claim 3, characterized in that: The driving arm comprises a plurality of slidably connected driving rods (13), the outer peripheral surfaces of the driving rods (13) are provided with limit strips (14) extending in the same direction, the driving rods (13) pass through the end surfaces of the first rotating seat (8) and the second rotating seat (9), and the inner surfaces of the first rotating seat (8) and the second rotating seat (9) are provided with sliding grooves (15) matching with the limit strips (14).
5. A road maintenance foundation pit depth measuring device according to claim 4, characterized in that: One end of the driving rod (13) away from the main body (1) is fixedly connected with a protrusion (16).