A quick-connect protective cylinder type soil settlement gauge

Abstract

This utility model provides a quick-connect protective cylinder type soil settlement gauge, relating to the field of soil settlement gauge technology. It includes: a protective cylinder, which is a hollow cylindrical body; and a connecting structure located in the middle of the protective cylinder. The connecting structure includes a hollow frame, a rotating wheel structure, at least three support arms, a drive structure, and a rack. The at least three support arms are rotatably arranged at equal intervals on the hollow frame. The movable end of the drive structure is connected to the rotating wheel structure. The advantages of this utility model are: by integrating the gear, rack, rotating wheel, guide frame, and support arms all inside the protective cylinder, the operator can quickly connect the soil settlement gauge by simultaneously clamping three points by rotating and pressing the pull ring. This achieves tool-free, quick installation of the soil settlement gauge, eliminating the need for on-site concrete fencing to protect the soil settlement gauge; and the tools are reusable, making it convenient and easy to carry both the soil settlement gauge and the protective cylinder.

Description

Technical Field

[0001] This utility model relates to the field of soil settlement gauge technology, and in particular to a quick-connect protective cylinder type soil settlement gauge. Background Technology

[0002] Currently, in order to accurately obtain the stratified settlement of soil in projects such as foundation pits, tunnels or roadbeds, a combination of "external rectangular protective pipe + internal soil settlement gauge" is commonly used: the line is laid out and the formwork is erected on site, and a section of rectangular reinforced concrete pipe is poured on site as a permanent enclosure. After it reaches the required strength, the settlement gauge is placed in the protective pipe to collect settlement data periodically.

[0003] However, the above-mentioned cast-in-place protective pipe scheme has obvious defects: First, the concrete pipe must be poured on-site section by section according to the progress of the project. The process is interspersed and the curing period is long, which makes it impossible to synchronize with the installation of settlement gauges, resulting in monitoring delays. Second, the rectangular pipe is a one-time structure with fixed size. It cannot move down in sync with the soil settlement, nor can it be pulled up and recycled in the next stage of the project, resulting in material waste. Utility Model Content

[0004] In view of this, the present invention provides a quick-connect protective cylindrical soil settlement gauge to solve the technical problem that the external protective structure of the existing settlement gauge cannot be installed synchronously with the settlement gauge and is not convenient for repeated use.

[0005] An embodiment of this utility model provides a quick-connect protective cylindrical soil settlement gauge, comprising: The protective cylinder is a hollow cylindrical body. A connecting structure is provided in the middle of the protective cylinder. The connecting structure includes a hollow frame, a rotating wheel structure, at least three support arms, a drive structure, and a rack. All the support arms are rotatably arranged at equal intervals on the hollow frame. The output end of the drive structure is connected to the rotating wheel structure. Each support arm is connected to the rotating wheel structure. The rotating wheel structure is rotatably provided on the hollow frame. The rotating wheel structure includes a lower rotating wheel, an upper rotating wheel, and at least three guide frames. Each guide frame is rotatably connected between the upper rotating wheel and the lower rotating wheel. Each support arm is slidably connected to a corresponding guide frame. By having a guide frame drive a support arm to swing, all the support arms can gradually move towards the center of the rotating wheel structure. The settling gauge body is detachably connected to the protective cylinder via the connecting structure. The drive structure drives the rotating wheel structure to move, so that the rotating wheel structure can drive all the support arms to approach and abut against the settling gauge body.

[0006] Furthermore, the drive structure includes a mounting bracket, a connecting shaft, a countersunk sleeve, and a gear. The connecting shaft is connected to the gear through the countersunk sleeve, and the connecting shaft is slidably connected to the mounting bracket. The gear meshes with the rack, and by driving the gear to rotate, the mounting bracket can move along the rack.

[0007] Furthermore, the rack is mounted on the hollow frame, and a guide rail is mounted on the rack. The drive structure also includes at least one guide rail bracket, and at least one guide rail bracket is slidably connected to the guide rail.

[0008] Furthermore, the mounting bracket is connected to the lower rotating wheel, which is rotatably disposed in the middle of the hollow frame and is coaxially arranged with the hollow frame.

[0009] Furthermore, a positioning pin is provided on the outside of the connecting shaft, and a countersunk hole corresponding to the positioning pin is opened on the upper part of the countersunk sleeve. By inserting the positioning pin into the upper part of the countersunk sleeve, the gear and the connecting shaft cannot rotate relative to each other, thereby achieving locking.

[0010] Furthermore, the mounting bracket is provided with a limiting sleeve, and the connecting shaft is slidably connected to the mounting bracket through the limiting sleeve, and the relative rotation between the connecting shaft and the mounting bracket is restricted.

[0011] Furthermore, baffles are provided at both ends of the guide rail, and the width of the baffles exceeds that of the guide rail frame, so that the guide rail frame will not detach from the guide rail.

[0012] Furthermore, each of the guide frames has a pin at both the upper and lower ends, and the upper and lower rotating wheels are provided with insertion holes for the pins to be inserted. The guide frames are connected to the pins and insertion holes to enable rotation.

[0013] Furthermore, each of the support arms is rotatably mounted with a roller at its front end, and multiple rollers jointly contact the settling gauge body.

[0014] Furthermore, a pull ring is connected to the upper end of the connecting shaft, and the lower end of the pull ring is disc-shaped to facilitate pressing and hooking with a finger.

[0015] The beneficial effects of the technical solution provided by the embodiments of this utility model are as follows: The quick-connect protective cylinder type soil settlement gauge of this utility model integrates gears, racks, wheels, guide frames, and support arms inside the protective cylinder, allowing the operator to complete the three-point synchronous clamping quick connection of the soil settlement gauge at one time by simply rotating and pressing the pull ring. This achieves tool-free quick installation of the soil settlement gauge without the need for on-site pouring of a retaining wall to protect the soil settlement gauge. Furthermore, the tools can be reused multiple times, and carrying the soil settlement gauge and the protective cylinder is convenient and easy to operate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the protective cylinder structure of the quick-connect protective cylinder type soil settlement gauge of this utility model; Figure 2 This is another perspective structural schematic diagram of the quick-connect protective cylindrical soil settlement gauge of this utility model; Figure 3 This is a schematic diagram of the connection structure of the quick-connect protective cylindrical soil settlement gauge of this utility model; Figure 4 This is an exploded view of the connection structure of the quick-connect protective cylindrical soil settlement gauge of this utility model; Figure 5 This is a bottom view of the drive structure of the quick-connect protective cylindrical soil settlement gauge of this utility model; Figure 6 This is a schematic diagram of the connecting shaft structure of the quick-connect protective cylindrical soil settlement gauge of this utility model.

[0017] In the diagram: 1. Settlement gauge body; 2. Protective cylinder; 21. Edge; 22. Pin; 23. Handle; 3. Hollow frame; 4. Rotary wheel structure; 41. Lower rotary wheel; 42. Upper rotary wheel; 43. Guide frame; 5. Support arm; 51. Roller; 6. Drive structure; 61. Mounting bracket; 62. Guide rail bracket; 63. Connecting shaft; 64. Gear; 65. Countersunk sleeve; 66. Positioning pin; 7. Guide rail; 8. Rack; 9. Baffle. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be further described below with reference to the accompanying drawings. The following description presents a preferred embodiment of several possible embodiments of this utility model, intended to provide a basic understanding of the utility model, but not intended to identify the key or decisive elements of the utility model or to limit the scope of protection sought.

[0019] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0020] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures. Also, it should be understood that, for ease of description, the dimensions of the various parts shown in the figures are not drawn to actual scale.

[0022] In the description of this utility model, it should be noted that the circuits, electronic components and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated. The content protected by this utility model does not involve any improvement to the internal structure and method.

[0023] It should be further noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please refer to Figure 1 The embodiments of this utility model are provided for your reference. Figures 1 to 3 This application provides a quick-connect protective cylinder type soil settlement gauge, including a protective cylinder 2, a connecting structure, and a settlement gauge body 1.

[0025] The protective cylinder 2 is a cylindrical body that runs vertically through the body. Its inner cavity is used to accommodate and radially protect the settling gauge body 1. The upper part of the protective cylinder 2 extends outward with an extension edge 21. A hollow frame 3 is fixedly provided in the middle of the protective cylinder 2. The outer wall of the hollow frame 3 is fitted with the inner wall of the protective cylinder 2 and locked by a set screw. A central circular hole is coaxially provided in the center of the hollow frame 3 for rotatably installing the rotating wheel structure 4.

[0026] Furthermore, a handle 23 is provided on the edge 21 to make the protective cylinder 2 easy to carry. In order to facilitate the insertion of the protective cylinder 2 into the soil, multiple continuously arranged prongs 22 are provided at the lower end of the protective cylinder 2. By inserting the prongs 22 into the soil, the protective cylinder 2 can be easily placed downward into the soil.

[0027] It should be noted that the connecting structure includes a rotating wheel structure 4, at least three support arms 5, a drive structure 6, and a rack 8.

[0028] The rotating structure 4 consists of a lower rotating wheel 41, an upper rotating wheel 42, and a guide frame 43 in the same number as the support arm 5. The lower rotating wheel 41 and the upper rotating wheel 42 are arranged in parallel and spaced apart. They are connected to each other by the pins 431 at the upper and lower ends of the guide frame 43 and the corresponding holes, forming a frame body that can rotate relative to each other. The guide frame 43 is generally U-shaped, and the width of its inner wall is in sliding fit with the outer wall of the support arm 5, so that the guide frame 43 can drive the support arm 5 to swing synchronously when it rotates with the rotating structure 4.

[0029] It should be further explained that the support arm 5 is hinged to the hollow frame 3 at equal intervals along the circumference, and a roller 51 is rotatably installed at its front end. The roller 51 is covered with a 2 mm polyurethane layer for elastic contact with the outer wall of the settlement gauge body 1. When the wheel structure 4 rotates clockwise, the guide frame 43 pulls the support arm 5 toward the center, and the roller 51 clamps the settlement gauge body 1 together to achieve rapid centering and locking.

[0030] Please refer to Figures 4 to 6 In this embodiment, the drive structure 6 includes a mounting bracket 61, a connecting shaft 63, a countersunk sleeve 65, a gear 64, and a guide rail bracket 62.

[0031] Mounting bracket 61 is an inverted L-shaped bent plate. Its horizontal plate is fixed to the lower rotating wheel 41 by three M3 bolts, and the vertical plate allows the connecting shaft 63 to slide through. The upper end of the connecting shaft 63 is milled flat and has a horizontal hole for fixing the pull ring 67. The middle section of the shaft is milled flat and cooperates with the flat hole of the limiting sleeve of the mounting bracket 61, so that the connecting shaft 63 can only slide axially and cannot rotate. The lower end of the connecting shaft 63 is detachably connected to the countersunk sleeve 65 by the positioning pin 66. The countersunk sleeve 65 is press-fitted with a gear 64, which meshes with the rack 8 fixed on the upper part of the hollow frame 3. The guide rail bracket 62 is symmetrically welded to the back of the mounting bracket 61. It has a built-in linear bearing and slides with the guide rail 7 parallel to the rack 8. The guide rail 7 has baffles 9 at both ends to prevent the gear 64 from disengaging from the rack 8.

[0032] The quick connection steps are as follows: Step 1: Initial state, pull the ring 67 upwards, the positioning pin 66 disengages from the countersunk sleeve 65, the gear 64 rotates freely, and the support arm 5 is in the open position; Step 2: Insert the settlement gauge body 1 from the upper end of the protective cylinder 2 to the middle position of the support arm 5; Step 3: Pull the ring 67 with one hand to swing, forcing the lower wheel 41 to swing synchronously with the mounting frame 61. The guide frame 43 located between the lower wheel 41 and the upper wheel 42 drives the support arm 5 to swing inward synchronously. The rollers 51 are evenly distributed at three points to clamp the settlement gauge body 1. Step 4: Press down on the pull ring 67 to make the connecting shaft 63 fall down, and the positioning pin 66 is inserted into the countersunk hole of the countersunk sleeve 65 to form a circumferential lock, thus completing the connection between the soil settlement gauge 1 and the protective cylinder 2. Step 5: Insert the protective cylinder 2 downwards into the soil at a suitable location. At this time, the soil settlement gauge 1 is housed inside the protective cylinder 2 and simultaneously installed in the soil. Then, pull the pull ring 67 to release the support arm 5. In an optional embodiment, the outer wall of the protective cylinder 2 and all exposed metal parts are coated with an epoxy coal tar anti-corrosion layer; the linear bearings of the gear 64 and the guide rail frame 62 are made of POM self-lubricating material to ensure reduced maintenance in the underground humid environment.

[0033] Example 2: The number of support arms 5 is changed from 3 to 4, and the guide frame 43 is changed to 4 accordingly, arranged in four equal parts. The thickness of the polyurethane layer of roller 51 is increased to 3 mm, while the rest of the structure remains unchanged. The four-point clamping provides greater radial force and is suitable for soft soil high friction conditions.

[0034] In this document, the directional terms such as front, back, top, and bottom are defined based on the position of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that these are relative concepts and can vary depending on different methods of use and placement; the use of these directional terms should not limit the scope of protection claimed in this application.

[0035] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A quick connect protection barrel type soil settlement gauge, characterized in that, include: The protective cylinder (2) is a hollow cylindrical body. A connecting structure is provided in the middle of the protective cylinder (2). The connecting structure includes a hollow frame (3), a rotating wheel structure (4), at least three support arms (5), a drive structure (6), and a rack (8). All the support arms (5) are equidistantly and rotatably arranged on the hollow frame (3). The output end of the drive structure (6) is connected to the rotating wheel structure (4). Each support arm (5) is connected to the rotating wheel structure (4). The rotating wheel structure (4) is rotatably provided on the hollow frame (3). The rotating wheel structure (4) includes a lower rotating wheel (41), an upper rotating wheel (42), and at least three guide frames (43). Each guide frame (43) is rotatably connected between the upper rotating wheel (42) and the lower rotating wheel (41). Each support arm (5) is slidably connected to a corresponding guide frame (43). By having a guide frame (43) drive a support arm (5) to swing, all the support arms (5) can gradually move towards the center of the rotating wheel structure (4). The settling gauge body (1) is detachably connected to the protective cylinder (2) through the connecting structure. The rotating wheel structure (4) is driven by the driving structure (6) to move, so that the rotating wheel structure (4) can drive all the support arms (5) to approach and abut against the settling gauge body (1).

2. The quick connect protection barrel type soil settlement gauge according to claim 1, characterized in that: The drive structure (6) includes a mounting bracket (61), a connecting shaft (63), a countersunk sleeve (65), and a gear (64). The connecting shaft (63) is connected to the gear (64) through the countersunk sleeve (65), and the connecting shaft (63) is slidably connected to the mounting bracket (61). The gear (64) meshes with the rack (8). By driving the gear (64) to rotate, the mounting bracket (61) can move along the rack (8).

3. The quick connect protection barrel type soil settlement gauge according to claim 2, characterized in that: The rack (8) is mounted on the hollow frame (3), and a guide rail (7) is mounted on the rack (8). The drive structure (6) also includes at least one guide rail frame (62), and at least one guide rail frame (62) is slidably connected to the guide rail (7).

4. The quick connect protection barrel type soil settlement gauge according to claim 3, characterized in that: The mounting bracket (61) is connected to the lower rotating wheel (41), which is rotatably disposed in the middle of the hollow frame (3) and is coaxial with the hollow frame (3).

5. The quick connect protection barrel type soil settlement gauge according to claim 3, characterized in that: The connecting shaft (63) is provided with a positioning pin (66) on the outside. The upper part of the countersunk sleeve (65) is provided with a countersunk hole corresponding to the positioning pin (66). The positioning pin (66) is inserted into the upper part of the countersunk sleeve (65) so that the gear (64) and the connecting shaft (63) cannot rotate relative to each other, thereby achieving locking.

6. The quick connect protection barrel type soil settlement gauge according to claim 2, characterized in that: The mounting bracket (61) is provided with a limiting sleeve, and the connecting shaft (63) is slidably connected to the mounting bracket (61) through the limiting sleeve, and the relative rotation between the connecting shaft (63) and the mounting bracket (61) is restricted.

7. The quick connect protection barrel type soil settlement gauge according to claim 3, characterized in that: The guide rail (7) is provided with a baffle (9) at both ends, the width of the baffle (9) exceeds the guide rail frame (62), so that the guide rail frame (62) will not be separated from the guide rail (7).

8. The quick connect protection barrel type soil settlement gauge according to claim 1, characterized in that: The upper and lower ends of each guide frame (43) are provided with a pin, the upper rotating wheel (42) and the lower rotating wheel (41) are provided with a pin hole for inserting the pin, the guide frame (43) is connected with the pin hole through the pin and the hole, so as to realize rotation.

9. The quick connect protection barrel type soil settlement gauge according to claim 1, characterized in that: The front end of each support arm (5) is rotatably provided with a roller (51), and a plurality of rollers (51) are in contact with the sedimentometer body (1).

10. The quick connect protection barrel type soil settlement gauge according to claim 2, characterized in that: The upper end of the connecting shaft (63) is connected with a pull ring (67), the lower end of the pull ring (67) is disc-shaped, which is convenient for finger pressing and hooking.

Images