Shaft slipform deflection monitoring device

Abstract

This utility model relates to the field of vertical shaft sliding formwork technology, and proposes a vertical shaft sliding formwork offset monitoring device. The device includes a support frame, on which a winch is mounted. Three identical collars are fitted onto the output shaft of the winch. A first rope is located in the collars on both sides of the output shaft, and a second rope is located in the collar in the middle of the winch. As the winch continuously extends the first and second ropes, the entire long plate of the support frame will stop on the sliding formwork operating platform. At this time, the other end of the contact block will contact the sliding formwork. Simultaneously, the light emitted by the laser emitter is refracted by a reflector and received by a receiver. The receiver records this distance as L. If the sliding formwork tilts or shifts, the contact block in contact with the sliding formwork will be subjected to compressive force, causing the reflector to move towards the long plate of the support frame.

Description

Technical Field

[0001] This utility model relates to the field of vertical shaft slipform technology, specifically a vertical shaft slipform offset monitoring device. Background Technology

[0002] A vertical shaft, a well-shaped pipe with upright walls, is actually a type of sinkhole. In plan view, it can be square, elongated, or irregularly circular. Elongated shafts develop along one set of joints, while square or circular shafts develop along two sets of joints. The shaft walls are steep, almost vertical, and sometimes the surface of an underground river can be seen from below.

[0003] A search revealed a vertical shaft slippage monitoring device (CN220322699U). This device uses a mounting frame with an adjustment assembly. Cameras are fixedly mounted on both sides of the mounting frame. The adjustment assembly includes a second motor, a second rotating shaft, gears, two toothed plates, two side plates, and sensors. The second motor is fixedly installed at the top inside the mounting frame. This invention uses the second motor to drive the second rotating shaft, causing the two side plates to move back-to-back. The distance between the two side plates can be adjusted as needed, bringing them closer to the inner wall of the shaft. When the shaft slips, the buffer pads contact the inner wall, causing the side plates to vibrate. When the sensors detect vibration, it indicates that slippage has occurred. Two cameras monitor the inner wall of the shaft. The structure is simple and can effectively detect the slippage status of a vertical shaft. Although the above-mentioned device can monitor the slipform offset of the shaft, when the two side plates come into contact with the slipform, they will be affected not only by the vibration caused by the slipform offset, but also by the vibration generated during the concrete pouring process. This will affect the detection of the sensors in the device, causing monitoring errors and thus causing problems. Therefore, it is necessary to improve the device and propose a shaft slipform offset monitoring device. Utility Model Content

[0004] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a vertical shaft slipform offset monitoring device to solve the aforementioned problems.

[0005] Technical solution To achieve the above-mentioned objective, this utility model provides the following technical solution: a vertical shaft slipform offset monitoring device, comprising a support frame, a winch mounted on the support frame, three identical collars sleeved on the output shaft of the winch, a first rope in the collars on both sides of the output shaft, a second rope in the collar in the middle of the winch, a support frame long plate at the end of the second rope, laser emitters at both ends of the support frame long plate, a contact block sleeved on the surface of the first rope, a reflector in the shape of a "Z" mounted on the other side of the contact block, and a receiver hidden in the support frame long plate fixed to the other side of the reflector.

[0006] Furthermore, a round rod is provided below the contact block, with the other end of the round rod hidden in the support frame plate.

[0007] Furthermore, a counterweight is fixed to the top of the long plate of the support frame, and the counterweight is sleeved with the second rope.

[0008] Furthermore, a plumb bob is provided at the end of the first rope.

[0009] Furthermore, a long block is provided at the top of the side of the support frame, which encloses rope number one and rope number two.

[0010] Furthermore, multiple cylinders are fitted onto the long block, and ropes number one and two pass through the center of the cylinders.

[0011] Furthermore, a fixing block is sleeved on the outer surface of the first rope, located above and below the contact block, and the side of the fixing block is on the same vertical line as the side of the plumb bob.

[0012] Beneficial effects Compared with the prior art, this utility model provides a vertical shaft slipform offset monitoring device, which has the following beneficial effects: 1. As the winch lowers ropes No. 1 and No. 2, the support frame plate stops on the sliding formwork operating platform. At this time, the other end of the contact block contacts the sliding formwork, and the laser beam from the laser emitter is refracted by the reflector and received by the receiver, which records this distance as L. If the sliding formwork tilts or shifts, the contact block is subjected to compressive force, causing the reflector to move towards the support frame plate. The change in the reflector's position causes the light to refract on the receiver, forming a new distance L1. Ground personnel receive the data. If L and L1 are equal, it indicates no sliding formwork shift; if L1 differs from L but is within the allowable error range, no correction is needed; if it exceeds the error range, it indicates sliding formwork shift. This method can accurately determine sliding formwork shift and has a simple structure.

[0013] 2. A plumb bob is attached to the end of rope number one to enhance its overall stability and prevent swaying caused by airflow within the shaft. A long block is installed at the top side of the support frame, enclosing ropes number one and two. Multiple cylinders are fitted onto the long block, with rope number one passing through the center of each cylinder. Due to the long block and contact block, the swaying amplitude of ropes number one and two is effectively controlled when they are extended, without affecting subsequent distance measurement operations.

[0014] 3. Two platforms are provided at each end of the support frame that contact the ground. These platforms not only increase the contact area between the support frame and the ground, thus improving its stability, but also allow operators to stack weight on the platforms, further enhancing the overall stability of the support frame in specific environments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the top structure of the present invention; Figure 3 This is a cross-sectional view of the front of the present invention; Figure 4 This utility model Figure 3 A magnified schematic diagram of the local structure at point B; Figure 5 This is a schematic diagram of light refraction in this utility model; Figure 6 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0016] The attached figures are labeled as follows: 1. Support frame; 2. Winch; 3. Collar; 4. Rope No. 1; 5. Rope No. 2; 7. Contact block; 9. Laser emitter; 10. Plumb bob; 11. Long block; 12. Receiver; 13. Round rod; 14. Reflector; 15. Counterweight; 16. Long plate; 17. Cylinder. Detailed Implementation

[0017] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.

[0018] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that the specific features, structural materials, or characteristics described in connection with that solution or example are included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0022] Please see Figures 1-6 This utility model proposes a vertical shaft slipform offset monitoring device, including a support frame 1, which is installed at the shaft opening. The device monitors the slipform offset of the shaft via an attached... Figure 1 It can be observed that two platforms are set at both ends of the support frame 1 that are in contact with the ground. The setting of the two platforms can increase the contact area between the entire support frame 1 and the ground, thereby increasing the support stability of the support frame 1. At the same time, the setting of the two platforms can also allow the operator to stack weight on the platform, which further enhances the overall stability of the support frame 1 in specific environments. The top surface of the support frame 1 is fixed to the winch 2. The other end of the output shaft of the winch 2 is movably mounted on the other end surface of the support frame 1, thereby completing the fixed installation of the winch 2 and ensuring the stable operation of the winch 2. Three identical collars 3 are sleeved on the output shaft of the winch 2. The collars 3 on both sides of the output shaft of the winch 2 are equipped with a first rope 4. The two first ropes 4 are distributed in a mirror symmetrical manner. The collar 3 in the middle of the winch 2 is equipped with a second rope 5. The three identical collars 3 initially limit the first rope 4 and the second rope 5. In order to make the first rope 4 and the second rope 5 run smoothly when they are extended, a long block 11 is set at the top of the side of the support frame 1. The long block 11 surrounds the first rope 4 and the second rope 5 to prevent the first rope 4 and the second rope 5 from swinging due to air flow, which would affect the smooth operation of the two ropes during the lowering process. To further reduce the swaying amplitude of rope 4 and rope 5 on the long block 11, multiple cylinders 17 are fitted onto the long block 11. Rope 4 passes through the center of the cylinder 17, thus confining rope 4 to the center of the cylinder 17, thereby preventing rope 4 and rope 5 from swaying significantly. Due to the arrangement of the long block 11 and the contact block 7, rope 4 and rope 5 will not swing significantly due to airflow when they are extended. A long plate 16 is provided at the end of the second rope 5. A counterweight 15 is provided above the long plate 16. The weight of the counterweight 15 is added to the long plate 16, making the counterweight 15 more stable. Laser emitters 9 for emitting light are provided at both ends of the long plate 16. To ensure a smooth descent of rope 4 without significant swaying, a plumb bob 10 is installed at its tail end. The plumb bob 10 provides weight to the tail ends of both ropes 4, thus acting as a guide. Simultaneously, the combined effect of the elongated block 11 and the contact block 7, along with the plumb bob 10, prevents significant swaying of rope 4 due to airflow as it is extended. This prevents significant swaying of rope 4, thus improving the accuracy of subsequent sliding mode offset monitoring.

[0023] To bring the No. 1 rope 4 close to the sliding mold, the edge of the plumb bob 10 contacts the surface of the sliding mold in the shaft. To increase the stability of the No. 1 rope 4 and the contact area with the sliding mold surface, contact blocks 7 are fitted onto the surfaces of both No. 1 ropes 4, and fixing blocks located above and below the contact blocks 7 are fitted onto the outer surface of the No. 1 rope 4. The side of the fixing block is on the same vertical line as the side of the plumb bob 10. The setting of the fixing block and the contact block 7 can ensure the stability of the No. 1 rope 4 and the contact area with the sliding mold surface. The side of the contact block 7 is curved, which can make good contact with the sliding mold. At the same time, the setting of the contact block 7 also provides a fixed position for the subsequent installation of the reflector 14. The reflector 14 is fixed to the other side of the contact block 7. The reflector 14 is U-shaped, and the open end of the reflector 14 faces the laser emitter 9. The open shape can not only receive light, but also achieve the purpose of refraction. From the appendix Figure 6 It can be clearly observed that the upper length of the reflector 14 is greater than the lower length. When the sliding mold is tilted, it squeezes the contact block 7, causing the reflector 14 to move to one side of the long plate 16, thereby changing the position of the reflector 14. The laser generated at this time will be refracted through the reflector 14. Since the upper length of the reflector 14 is greater than the lower length, it can be ensured that the reflected laser can still be refracted to the receiver 12 located on one side of the reflector 14, so that the phenomenon of the laser not being received by the receiver 12 after refraction will not occur.

[0024] The other end of the receiver 12 is embedded in the long plate 16 and has a movable distance, which not only ensures that the receiver 12 can move inside the long plate 16, but also connects the contact block 7 and the long plate 16 together through the receiver 12, making the whole device more stable. To ensure a more secure connection between the contact block 7 and the long plate 16 without hindering the movement of the receiver 12 within the long plate 16, a round rod 13 is provided below the contact block 7. The other end of the round rod 13 is inserted into the long plate 16, leaving a movable end (as shown in the attached figure). Figure 6 The receiver 12 is embedded in the long plate 16, thus the round rod 13 ensures a more secure connection between the contact block 7 and the long plate 16, and does not affect the movement of the receiver 12 in the long plate 16.

[0025] As the winch 2 continuously extends the first rope 4 and the second rope 5, the long plate 16 will remain on the sliding formwork operating platform. The subsequent extension speed of the winch 2 is the same as the descent speed of the sliding formwork operating platform, which ensures the stability of the entire monitoring device on the sliding formwork operating platform. At the same time, the contact block 7 and the long plate 16 are connected as a whole, and the contact block 7 is fixedly connected to the first rope 4, thus ensuring that the first rope 4 will not swing significantly, which provides a guarantee for the accuracy of subsequent sliding formwork offset monitoring. At this time, the other end of the contact block 7 contacts the sliding mold, and the light emitted by the laser emitter 9 is refracted by the reflector 14 and received by the receiver 12. The receiver 12 will record this distance as L0. If the sliding mold tilts or shifts, the contact block 7 in contact with the sliding mold will be subjected to a squeezing force, which will cause the contact block 7 to move the reflector 14 towards the long plate 16. At this time, the light emitted by the laser emitter 9 will be refracted on the receiver 12 due to the change in the position of the reflector 14, and a new distance will be generated, which is recorded as L1. The data generated at this time will be received by the staff on the ground. If L1 is equal to L, no sliding has occurred. If L1 is not equal to L, no correction is needed if it is within the allowable error range (+3mm). If it exceeds the error, it means that the sliding mold has shifted. The above method can accurately determine whether the sliding mold has shifted, and the structure is simple.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical shaft slipform offset monitoring device, comprising a support frame (1), characterized in that: The support frame (1) is equipped with a winch (2). Three identical collars (3) are sleeved on the output shaft of the winch (2). A first rope (4) is provided in the collars (3) on both sides of the output shaft of the winch (2). A second rope (5) is provided inside the collar (3) in the middle of the winch (2). A long plate (16) is provided at the end of the second rope (5). Laser emitters (9) are provided at both ends of the long plate (16). A contact block (7) is sleeved on the surface of the first rope (4). A U-shaped reflector (14) is installed on the other side of the contact block (7). A receiver (12) embedded in the long plate (16) is fixed on the other side of the reflector (14).

2. The vertical shaft slipform offset monitoring device according to claim 1, characterized in that: A round rod (13) is provided below the contact block (7), and the other end of the round rod (13) is inserted into the long plate (16).

3. The vertical shaft slipform offset monitoring device according to claim 1, characterized in that: The top of the long plate (16) is fixed with a counterweight (15), and the counterweight (15) is connected to the second rope (5).

4. The vertical shaft slipform offset monitoring device according to claim 1, characterized in that: The tail end of the first rope (4) is equipped with a plumb bob (10).

5. The vertical shaft slipform offset monitoring device according to claim 1, characterized in that: The top of the side of the support frame (1) is provided with a long block (11), which surrounds the first rope (4) and the second rope (5).

6. A vertical shaft slipform offset monitoring device according to claim 5, characterized in that: Multiple cylinders (17) are fitted onto the long block (11), and ropes No. 1 (4) and No. 2 (5) pass through the center of the cylinders (17).

7. A vertical shaft slipform offset monitoring device according to claim 1, characterized in that: The outer surface of the first rope (4) is fitted with a fixing block located above and below the contact block (7), and the side of the fixing block is on the same vertical line as the side of the plumb bob (10).

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