Cable displacement sensor fixing device for large-scale double-leaf door synchronous lifting system

Abstract

The utility model provides large scale sash door synchronous lifting system's guy displacement sensor fixing device, including the fastening structure of hoop, one end of fastening structure of hoop is hinged with support, and the other end is fixedly connected through fastening bolt and nut and will support fixed on hydraulic jack body, the top of support is equipped with the platform through the leveling mechanism, the top fixed mounting of platform is used for detecting displacement's guy displacement sensor. This device passes through fastening structure of hoop and fixes one support with leveling function on hydraulic jack body, and installs guy displacement sensor and its accessory assembly on the support, to realize the stable installation and accurate measurement of sensor. Compared with prior art temporary fixing mode, the device has higher stability and easy use, can install or dismount the sensor fast under the condition of not changing hydraulic jack structure, guarantees sash door synchronous lifting operation's hydraulic jack synchronous displacement monitoring accurate and reliable.

Description

Technical Field

[0001] This utility model belongs to the field of construction technology for synchronous lifting of large miter gates, specifically a wire displacement sensor fixing device for synchronous lifting system of large miter gates. Background Technology

[0002] In the synchronous jacking construction of large A-frame structures, multiple high-tonnage hydraulic jacks (such as a single jack with a rated lifting capacity of 500 tons) are often used in tandem to smoothly lift A-frame steel structures such as bridge beams or factory gate frames. To monitor displacement changes during the jacking process, external guy-wire displacement sensors are usually installed between the hydraulic jacks and the structure being lifted, with the extension and retraction of the guy wire reflecting the jacking height. However, the construction site environment is complex, often involving multiple pieces of equipment and personnel working simultaneously. If the guy-wire displacement sensors are only temporarily fixed, they are very prone to displacement due to collisions or vibrations, leading to inaccurate measurement data or even damage to the sensors.

[0003] Currently, to ensure construction safety, a good connection must be maintained between the sensor and the structure being lifted during the lifting process. Given the on-site construction environment, installing a pull-wire displacement sensor fixing device on the hydraulic jack cylinder is the optimal solution. However, this method does not allow for permanent modification of the hydraulic jack itself. For example, drilling holes in the jack to install the sensor mounting base is not advisable, as it would affect the layout of the jack's hydraulic pipes and control circuits, and cause inconvenience during equipment transportation. Furthermore, large hydraulic jacks require frequent lifting and movement; if the sensor bracket is fixed, it is easily damaged during transportation and lifting. Therefore, existing technology lacks a dedicated device that can securely install the sensor while facilitating disassembly without damaging the jack, thus meeting the requirements for synchronous lifting and monitoring of large hydraulic jacks. Utility Model Content

[0004] To address current technical problems, this invention aims to provide a cable displacement sensor fixing device for a large A-frame gate synchronous lifting system. This device uses a clamp-type fastening structure to fix a bracket with a leveling function to the hydraulic jack body. The cable displacement sensor and its auxiliary components are then installed on the bracket, achieving stable horizontal installation and accurate measurement of the sensor. Compared to existing temporary fixing methods, this device offers higher stability and ease of use, allowing for quick installation or removal of the sensor without altering the jack structure, ensuring accurate and reliable synchronous monitoring during the A-frame gate's synchronous lifting operation.

[0005] To achieve the above-mentioned technical features, the purpose of this utility model is as follows: a wire displacement sensor fixing device for a large miter gate synchronous lifting system includes a clamp-type fastening structure, one end of which is hinged to a bracket, and the other end is fixedly connected to the bracket by fastening bolts and nuts, fixing the bracket to the hydraulic jack body; a platform is installed on the top of the bracket through a leveling mechanism, and the top of the platform is fixed to install a wire displacement sensor for detecting displacement.

[0006] Preferably, the clamp-type fastening structure includes a clamp body, one end of which is hinged to the bracket via a pin, and the other end of the clamp body is bent to form a connecting ear, which is used to install fastening bolts and nuts.

[0007] Preferably, a rubber pad is provided between the clamp-type fastening structure and the hydraulic jack body.

[0008] Preferably, the support includes an upright plate, a horizontal plate is fixed to the top of the upright plate, and multiple sets of ear plates are symmetrically fixed to both sides of the upright plate. The ear plates are used for hinged clamp-type fastening structure, and a diagonal bar is fixed between the upright plate and the horizontal plate.

[0009] Preferably, the leveling mechanism adopts a bolt adjustment structure with three sets, including a stud installed on the top of the bracket, a nut sleeve installed on the stud through threaded engagement, a fixed platform at the top of the nut sleeve, and a locking nut fitted on the stud.

[0010] Preferably, the platform includes a platform plate with a T-shaped slot machined on it. The T-shaped slot mates with the T-shaped base of the wire displacement sensor. A pressure plate is provided at the location of the T-shaped slot, and the pressure plate is fixed and locked to secure the wire displacement sensor by set screws.

[0011] Preferably, the top of the platform plate is provided with a level bubble for indicating the horizontal state.

[0012] Preferably, it also includes a cable end fixing device, which includes a clamp and a rotating hook connected thereto. The clamp can be clamped on the edge of the herringbone steel structure, and the rotating hook is used to hang the end of the cable of the cable displacement sensor.

[0013] The present invention has the following beneficial effects:

[0014] 1. This utility model provides a sensor fixing bracket specifically for hydraulic jacks in large miter gate synchronous lifting systems, which enables external pull-wire displacement sensors to be stably and accurately installed on the hydraulic jacks and kept horizontal, effectively avoiding the problem of sensor displacement due to impact during construction.

[0015] 2. This utility model device adopts a detachable design, which can be installed and disassembled without any modification to the hydraulic jack. It is flexible and convenient to use. Multiple hydraulic jacks can share a set of sensor fixing brackets, reducing equipment costs.

[0016] 3. This utility model protects the jack surface from being scratched by the clamping device by setting a buffer pad, and enhances the friction and anti-slip effect, thereby improving safety.

[0017] 4. The tiger-clamp hook design at the end of the pull wire in this utility model ensures that the sensor pull wire can be reliably connected to the lifted structure and avoids slippage.

[0018] 5. This device has a simple and robust structure, is suitable for complex environments, and can be used repeatedly, demonstrating strong novelty and practical value. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a front view of the overall structure of this utility model.

[0021] Figure 2 This is a side view of the overall structure of this utility model.

[0022] Figure 3 This is a rear view of the overall structure of this utility model.

[0023] Figure 4 This is a top view of the overall structure of this utility model.

[0024] Figure 5 This is a first-person 3D view of the overall structure of this utility model.

[0025] Figure 6 This is a second-view three-dimensional diagram of the overall structure of this utility model.

[0026] Figure 7 The front view shows the components installed on the bracket of this utility model.

[0027] Figure 8 Side view of the mounting components on the bracket of this utility model.

[0028] Figure 9 A three-dimensional view of the components installed on the bracket of this utility model.

[0029] In the diagram: 1. Hydraulic jack body; 2. Clamp-type fastening structure; 3. Rubber pad; 4. Fastening bolt; 5. Nut; 6. Bracket; 7. Leveling mechanism; 8. Platform; 9. Wire displacement sensor.

[0030] Clamp body 201, connecting ear 202, pin 203;

[0031] Vertical plate 601, ear plate 602, diagonal brace 603, horizontal plate 604;

[0032] Locking nut 701, stud 702, nut sleeve 703;

[0033] Platform plate 801, T-shaped slot 802, pressure plate 803, set screw 804. Detailed Implementation

[0034] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0035] See Figure 1-9 The cable displacement sensor fixing device for a large miter gate synchronous lifting system includes a clamp-type fastening structure 2. One end of the clamp-type fastening structure 2 is hinged to a bracket 6, and the other end is fixedly connected to the bracket 6 on the hydraulic jack body 1 via fastening bolts 4 and nuts 5. A platform 8 is installed on the top of the bracket 6 via a leveling mechanism 7, and a cable displacement sensor 9 for detecting displacement is fixedly installed on the top of the platform 8. This device uses a clamp-type fastening structure to fix a bracket with a horizontal leveling function to the hydraulic jack cylinder, and installs the cable displacement sensor and its auxiliary components on the bracket, thereby achieving stable horizontal installation and accurate measurement of the sensor. Compared with existing temporary fixing methods, this device has higher stability and ease of use, and can quickly install or remove the sensor without modifying the hydraulic jack structure, ensuring accurate and reliable synchronous monitoring of the miter gate's synchronous lifting operation. In actual operation, the clamp-type fastening structure 2 uses a semi-circular ring-shaped clamp and bolts to fasten it to the cylindrical surface of the hydraulic jack. To accommodate different specifications of hydraulic jacks, the diameter of the clamp can be adjusted and locked in place using bolts or U-shaped fasteners. A buffer device, such as a rubber pad or other elastic material, is sandwiched between the inner side of the fastening device and the surface of the hydraulic jack to increase friction, prevent slippage of the fastening device, and avoid direct metal-to-metal friction and scratches. Displacement is detected by the wire displacement sensor 9 during the lifting, lowering, and lowering process of the hydraulic jack.

[0036] Furthermore, the clamp-type fastening structure 2 includes a clamp body 201. One end of the clamp body 201 is hinged to the bracket 6 via a pin 203, and the other end of the clamp body 201 is bent to form a connecting ear 202, which is used to install fastening bolts 4 and nuts 5. By adopting the above-mentioned clamp-type fastening structure 2, reliable fixed installation of the bracket 6 can be achieved, thereby fixing the bracket 6 to the top of the hydraulic jack body 1.

[0037] Furthermore, a rubber pad 3 is provided between the clamp-type fastening structure 2 and the hydraulic jack body 1. The rubber pad 3 or other elastic material pads can be used to increase friction, prevent the fastening device from slipping, and avoid direct metal-to-metal friction and scratches.

[0038] Furthermore, the support 6 includes a vertical plate 601, a horizontal plate 604 fixed to the top of the vertical plate 601, and multiple sets of ear plates 602 symmetrically fixed to both sides of the vertical plate 601. The ear plates 602 are used for hinged clamp-type fastening structure 2. A diagonal rod 603 is fixed between the vertical plate 601 and the horizontal plate 604. By adopting the above-mentioned support 6, it can be used to stably support the leveling mechanism 7 at its top. The triangular structure of the support 6 can provide high strength and stability, and can withstand the weight of the sensor and accessories and the vibration during construction on the side of the jack without significant shaking.

[0039] Furthermore, the leveling mechanism 7 employs a bolt adjustment structure with three sets, including studs 702 mounted on the top of the support 6. A nut sleeve 703 is threaded onto the stud 702, with the top of the nut sleeve 703 securing the platform 8. A locking nut 701 is fitted onto the stud 702. This leveling mechanism 7 allows for subsequent leveling of the platform 8. Workers can fine-tune the platform's tilt by rotating and adjusting the extension length of these three studs until the platform 8 reaches a horizontal position. Tightening the locking nut 701 on the stud 702 ensures that the platform 8 remains horizontal and stable during the lifting process and will not loosen due to vibration.

[0040] Furthermore, the platform 8 includes a platform plate 801, on which a T-shaped slot 802 is machined. The T-shaped slot 802 mates with the T-shaped base of the wire displacement sensor 9. A pressure plate 803 is provided at the location of the T-shaped slot 802, and the pressure plate 803 is fixed by a set screw 804 to lock and secure the wire displacement sensor 9. The platform 8 described above reliably achieves the locking and securing of the wire displacement sensor 9.

[0041] Furthermore, to aid in determining whether the platform plate 801 is level, a level bubble is provided on the top of the platform plate 801 to indicate its levelness. This level bubble allows for the display of the platform plate 801's levelness during installation, thereby achieving a leveling effect.

[0042] Furthermore, it also includes a cable end fixing device, which includes a clamp and a rotating hook connected thereto. The clamp can be clamped on the edge of the herringbone steel structure, and the rotating hook is used to hang the end of the cable of the cable displacement sensor 9.

[0043] The working process and principle of this utility model:

[0044] When the hydraulic jack starts lifting, the pull rope is pulled out along with the structure being lifted. The sensor detects the length of the extended rope and converts it into displacement data, enabling real-time monitoring of the lifting height. Because this fixing device firmly secures the sensor and has a leveling function, and the end of the pull rope is reliably attached, the entire measurement process is stable and reliable. After the A-frame gate is synchronously raised and lowered, the construction personnel can easily loosen the clamps, retract the sensor pull rope, and loosen the fastening device to remove the entire support from the hydraulic jack. This allows for the installation and removal of the sensor without causing any permanent changes to the jack, facilitating its transfer to the next work site for continued use.

Claims

1. A wire displacement sensor fixing device for a large miter gate synchronous lifting system, characterized in that, It includes a clamp-type fastening structure (2), one end of which is hinged to the bracket (6), and the other end is fixedly connected by fastening bolts (4) and nuts (5) to fix the bracket (6) on the hydraulic jack body (1); the top of the bracket (6) is equipped with a platform (8) through a leveling mechanism (7), and the top of the platform (8) is used to install a pull-wire displacement sensor (9) for detecting displacement.

2. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 1, characterized in that: The clamp-type fastening structure (2) includes a clamp body (201), one end of which is hinged to the bracket (6) via a pin (203), and the other end of which is bent to form a connecting ear (202), which is used to install fastening bolts (4) and nuts (5).

3. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 1, characterized in that: A rubber pad (3) is provided between the clamp-type fastening structure (2) and the hydraulic jack body (1).

4. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 1, characterized in that: The bracket (6) includes a vertical plate (601), a horizontal plate (604) is fixed to the top of the vertical plate (601), and multiple sets of ear plates (602) are symmetrically fixed on both sides of the vertical plate (601). The ear plates (602) are used to connect the hinged clamp-type fastening structure (2). A diagonal rod (603) is fixed between the vertical plate (601) and the horizontal plate (604).

5. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 1, characterized in that: The leveling mechanism (7) adopts a bolt adjustment structure with three sets, including a stud (702) installed on the top of the bracket (6), a nut sleeve (703) installed on the stud (702) by threaded engagement, a fixed platform (8) at the top of the nut sleeve (703), and a locking nut (701) fitted on the stud (702).

6. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 1, characterized in that: The platform (8) includes a platform plate (801), on which a T-shaped slot (802) is machined. The T-shaped slot (802) cooperates with the T-shaped base of the wire displacement sensor (9). A pressure plate (803) is provided at the location of the T-shaped slot (802). The pressure plate (803) is fixed by a set screw (804) and locks the wire displacement sensor (9) in place.

7. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 6, characterized in that: The top of the platform plate (801) is provided with a level bubble for displaying the horizontal state.

8. The wire displacement sensor fixing device for the large miter gate synchronous lifting system according to claim 6, characterized in that: It also includes a cable end fixing device, which includes a tiger clamp and a rotating hook connected thereto. The tiger clamp can clamp onto the edge of the herringbone steel structure, and the rotating hook is used to hang the cable end of the cable displacement sensor (9).

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