Automatic limiting device for slip form jack

Abstract

The invention provides an automatic limiting device for a slip form jack, and relates to the technical field of slip form jacks. The automatic limiting device of the slip form jack comprises a slip lifting jack body and a guide rod, the slip lifting jack body is arranged on the outer side of the guide rod in a sleeving mode, a top cover is arranged at the upper end of the slip lifting jack body on the outer side of the guide rod, a ring seat is arranged on the upper end face of the top cover, and the upper portion of the outer side of the ring seat is sleeved with a shell in a threaded mode. A cover plate is arranged at the upper end of the shell, a plurality of hole pricking structures are annularly arranged on the upper portion of the inner side wall of the shell, and a storage battery module is arranged on the inner side wall of the shell at the lower ends of the hole pricking structures. By controlling the extension of the multiple first hydraulic rods, the multiple first hydraulic rods push the multiple clamping blocks to slide along the multiple stepped grooves, and the multiple clamping blocks clamp the outer sides of the guide rods for locking, jack sliding caused by mechanical faults or external interference is prevented, and the stability of the formwork is ensured; maintenance and adjustment caused by unstable sliding and lifting of the jack are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of sliding form jacks, in particular to an automatic limiting device for sliding form jacks. Background Art

[0002] Slipform jack is a kind of equipment used in slipform construction. It is used to vertically slide the formwork during the concrete pouring process. Slipform jack is usually hydraulically driven and uses the pressure of hydraulic oil to push the formwork up. It is mainly used in slipform construction and the construction of large concrete structures such as silos, chimneys and water towers. When using slipform technology to build the top of large concrete structures such as silos, chimneys and water towers, a linear variable differential transformer or capacitive sensor is used to measure the vertical displacement of the formwork and stop when it reaches the top.

[0003] There are still some problems in the use of the existing sliding formwork jack limit device. When the sliding formwork is moved to the top, when the template reaches a preset height, the limit switch is triggered and sends a signal to the control system to stop the further sliding of the jack. However, the stability of the template during the sliding process cannot be ensured, especially when encountering external interference, and the maintenance of the limit structure may be more difficult, especially in high-altitude working environments. Therefore, technical personnel in this field provide an automatic limit device for a sliding formwork jack to solve the problems raised in the above background technology. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the shortcomings of the prior art, the present invention provides an automatic limiting device for a sliding formwork jack, which solves the problem that the stability of the formwork cannot be ensured during the sliding process, especially when encountering external interference, and the maintenance of the limiting structure may be more difficult, especially in high-altitude working environments.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic limit device for a sliding formwork jack, comprising a sliding formwork jack body and a guide rod, the sliding formwork jack body is sleeved on the outside of the guide rod, a top cover is provided at the upper end of the sliding formwork jack body outside the guide rod, a ring seat is provided on the upper end surface of the top cover, a shell is threadedly sleeved at the upper part of the outer side of the ring seat, a cover plate is provided at the upper end of the shell, a plurality of piercing structures are arranged in a ring shape at the upper part of the inner side wall of the shell, a battery module is provided on the inner side wall of the shell at the lower end of the plurality of piercing structures, a limit structure is provided on the inner side wall of the shell at the lower end of the battery module, a displacement sensor is provided at one side of the center of the lower inner wall of the shell, the existing automatic limit device cooperates with the displacement sensor to detect the height of the displacement, so as to improve the accuracy of the sliding height, thereby improving the overall quality and efficiency of the sliding formwork construction, and an integrated controller is provided at the upper end of the displacement sensor;

[0008] The limiting structure includes a base, a plurality of step grooves, a plurality of first hydraulic rods and a plurality of clamping blocks. The base is fixedly connected to the inner wall of the shell. The plurality of step grooves are arranged in a circular shape on the lower end surface of the base. The plurality of first hydraulic rods are respectively fixedly connected to the inside of the plurality of step grooves by bolts. The plurality of clamping blocks are respectively arranged on the output ends of the plurality of first hydraulic rods and are respectively slidably connected to the inner sides of the step grooves. By controlling the extension of the plurality of first hydraulic rods, the plurality of first hydraulic rods push the plurality of clamping blocks to slide along the plurality of step grooves. The plurality of clamping blocks are clamped on the outer side of the guide rod for locking, so as to prevent the jack from sliding due to mechanical failure or external interference, ensure the stability of the template, and reduce the maintenance and adjustment due to the unstable sliding of the jack through automatic locking, thereby reducing the maintenance cost.

[0009] Preferably, the piercing structure includes a second hydraulic rod, a connecting seat, a chuck, a block, a base plate, a curved surface and a plurality of needle heads, the second hydraulic rod is fixedly connected to the inner wall of the shell, the connecting seat is fixedly connected to the output end of the second hydraulic rod, the chuck is fixedly connected to the other end of the connecting seat, the block is sleeved on the upper outer side of the chuck, the base plate is fixedly connected to the inner side wall of the block, the curved surface is arranged on the inner side wall of the base plate, and the plurality of needle heads are arranged in a rectangular shape on the curved surface. The second hydraulic rod is extended by the integrated controller, the second hydraulic rod pushes the chuck to move, and then pushes the base plate and the plurality of needle heads to move inward, slightly pierces the surface of the guide rod, and then controls the second hydraulic rod to contract. The tiny holes on the surface of the guide rod can provide greater friction when the sliding jack body is clamped again, thereby improving the stability of the equipment.

[0010] Preferably, an opening is provided on the lower end surface of the clamping block, and the clamping block is fixedly connected to the chuck by screws, so as to facilitate the disassembly and assembly of the clamping block and the replacement of the needle head.

[0011] Preferably, a storage groove is provided at the edge of the lower end surface of the shell, and a pressure sensor is provided inside the storage groove. The pressure sensor is used to monitor whether the sliding jack body continues to work after being locked. When the threshold set by the pressure sensor is reached, an alarm is promptly issued through the integrated controller to provide a warning, thereby improving the safety of equipment use.

[0012] Preferably, the integrated controller also includes a computing module, a signal transmission module, a signal processing module and a control module. The computing module is responsible for processing data from sensors and other input devices, and displacement information provided by the displacement sensor. Based on the calculation results, the computing module can support the decision-making process, such as determining when to start or stop the sliding process. The signal transmission module is responsible for transmitting signals between modules inside the controller and between the controller and external devices to ensure that data is transmitted synchronously between different modules to avoid data loss or delay. The signal processing module is responsible for analyzing the signals collected from the sensors and the signals of the displacement sensors to identify patterns, trends or anomalies, filter and eliminate noise, filter the signals, eliminate noise, and improve signal quality. The control module executes corresponding control commands based on the decisions of the computing module and the analysis results of the signal processing module. The control module is responsible for controlling the sliding process of the jack, including starting, stopping and adjusting the sliding speed. The control module is also responsible for activating the locking mechanism to ensure that the jack can be safely locked after reaching a preset height.

[0013] (III) Beneficial effects

[0014] The present invention provides an automatic limit device for a sliding form jack, which has the following beneficial effects:

[0015] 1. In the present invention, by controlling the extension of multiple first hydraulic rods, the multiple first hydraulic rods push the multiple clamping blocks to slide along the multiple step grooves, and the multiple clamping blocks are clamped on the outer side of the guide rod for locking, so as to prevent the jack from sliding due to mechanical failure or external interference, thereby ensuring the stability of the template, and reducing the maintenance and adjustment due to the unstable sliding of the jack through automatic locking, thereby reducing the maintenance cost.

[0016] 2. In the present invention, by controlling the extension of the second hydraulic rod, the second hydraulic rod pushes the chuck to move, and then pushes the base plate and multiple needle heads to move inward, slightly puncturing the surface of the guide rod, and then controlling the second hydraulic rod to contract, the tiny holes on the surface of the guide rod can provide greater friction when the sliding jack body is clamped again, thereby improving the stability of the equipment.

[0017] 3. In the present invention, a pressure sensor is used to monitor whether the sliding jack body continues to work after being locked. When the threshold set by the pressure sensor is reached, an alarm is issued in time for early warning, thereby improving the safety of equipment use.

[0018] 4. In the present invention, the existing automatic limit device is combined with a displacement sensor to detect the displacement height, thereby improving the accuracy of the sliding height, thereby improving the overall quality and efficiency of the slipform construction, and then through the threaded connection between the shell and the ring seat, it is easy to disassemble and assemble, thereby improving convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 is a three-dimensional cross-sectional view of the present invention;

[0021] Figure 3 is a three-dimensional cross-sectional view of the housing of the present invention;

[0022] Figure 4 is a front cross-sectional view of the housing of the present invention;

[0023] Figure 5 It is a three-dimensional diagram of the hole-piercing structure of the present invention;

[0024] Figure 6 This is a stereoscopic view of the hole-piercing structure of the present invention from another perspective.

[0025] Among them, 1. the main body of the sliding jack; 2. the top cover; 3. the shell; 4. the cover plate; 5. the guide rod; 6. the battery module; 7. the limiting structure; 701. the base; 702. the step groove; 703. the first hydraulic rod; 704. the clamping block; 8. the ring seat; 9. the piercing structure; 901. the second hydraulic rod; 902. the connecting seat; 903. the chuck; 904. the clamping block; 905. the base plate; 906. the arc surface; 907. the piercing needle head; 10. the pressure sensor; 11. the storage tank; 12. the integrated controller; 13. the displacement sensor. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Embodiment 1:

[0028] like Figure 1-6As shown, an embodiment of the present invention provides an automatic limiting device for a sliding form jack, including a sliding jack body 1 and a guide rod 5. The sliding jack body 1 is sleeved on the outside of the guide rod 5. A top cover 2 is provided at the upper end of the sliding jack body 1 outside the guide rod 5. A ring seat 8 is provided on the upper end surface of the top cover 2. A shell 3 is threadedly sleeved on the upper part of the outer side of the ring seat 8. The threaded connection between the shell 3 and the ring seat 8 facilitates the installation and disassembly of the shell 3, and is convenient for installation before and after use and disassembly and maintenance after use. A cover plate 4 is provided at the upper end of the shell 3. A plurality of piercing structures 9 are arranged in a ring shape at the upper part of the inner wall of the shell 3. The integrated controller 12 controls the plurality of piercing structures 9 to start piercing tiny holes on the outer side of the guide rod 5, so as to increase the contact friction between the sliding jack 1 and the guide rod 5, thereby improving stability.

[0029] A battery module 6 is provided on the inner wall of the shell 3 at the lower end of the multiple hole-piercing structures 9, and electric energy is supplied through the battery module 6. A limiting structure 7 is provided on the inner wall of the shell 3 at the lower end of the battery module 6. The limiting structure 7 performs limiting support after reaching the top position to prevent the jack from sliding due to mechanical failure or external interference, thereby ensuring the stability of the template. Through automatic locking, maintenance and adjustment due to unstable jack sliding are reduced, and maintenance costs are reduced. In addition, a certain stability can be provided during the sliding process to prevent the sliding jack body 1 from malfunctioning and causing dangerous situations. A displacement sensor 13 is provided at one side of the center of the lower inner wall of the shell 3. The existing automatic limiting device cooperates with the displacement sensor 13 to detect the displacement height, thereby improving the accuracy of the sliding height, thereby improving the overall quality and efficiency of the sliding formwork construction. An integrated controller 12 is provided at the upper end of the displacement sensor 13, and integrated control is performed through the integrated controller 12.

[0030] The limiting structure 7 includes a base 701, multiple step grooves 702, multiple first hydraulic rods 703 and multiple clamping blocks 704. The base 701 is fixedly connected to the inner wall of the shell 3. The multiple step grooves 702 are arranged in a circular shape on the lower end surface of the base 701. The multiple first hydraulic rods 703 are respectively fixedly connected to the inside of the multiple step grooves 702 by bolts. The multiple clamping blocks 704 are respectively arranged on the output ends of the multiple first hydraulic rods 703 and are respectively slidably connected to the inner sides of the step grooves 702. By controlling the extension of the multiple first hydraulic rods 703, the multiple first hydraulic rods 703 push the multiple clamping blocks 704 to slide along the multiple step grooves 702, and the multiple clamping blocks 704 are clamped on the outer sides of the guide rods 5 for locking.

[0031] The piercing structure 9 includes a second hydraulic rod 901, a connecting seat 902, a chuck 903, a block 904, a base plate 905, a curved surface 906 and a plurality of needle heads 907. The second hydraulic rod 901 is fixedly connected to the inner wall of the housing 3, the connecting seat 902 is fixedly connected to the output end of the second hydraulic rod 901, the chuck 903 is fixedly connected to the other end of the connecting seat 902, the block 904 is sleeved on the upper outer side of the chuck 903, the base plate 905 is fixedly connected to the inner side wall of the block 904, and the curved surface 906 is provided with a plurality of needle heads 907. On the inner side wall of the base plate 905, a plurality of needle heads 907 are arranged in a rectangular shape on the arc surface 906. The second hydraulic rod 901 is extended through the integrated controller 12, and the second hydraulic rod 901 pushes the chuck 903 to move, and then pushes the base plate 905 and the plurality of needle heads 907 to move inward, slightly puncturing the surface of the guide rod 5, and then the second hydraulic rod 901 is controlled to contract. The tiny holes on the surface of the guide rod 5 can provide greater friction when the sliding jack body 1 is clamped again, thereby improving the stability of the equipment.

[0032] An opening is provided on the lower end surface of the clamping block 904 , and the clamping block 904 is fixedly connected to the chuck 903 by screws, so that the clamping block 904 can be easily disassembled and assembled, and the needle head 907 can be replaced.

[0033] A storage groove 11 is provided at the edge of the lower end surface of the shell 3, and a pressure sensor 10 is provided inside the storage groove 11. The pressure sensor 10 is used to monitor whether the lifting jack body 1 continues to work after being locked. When the threshold set by the pressure sensor 10 is reached, an alarm is promptly issued through the integrated controller 12 for early warning, thereby improving the safety of equipment use.

[0034] The integrated controller 12 also includes a computing module, a signal transmission module, a signal processing module and a control module. The computing module is responsible for processing data from sensors and other input devices, and the displacement information provided by the displacement sensor 13. According to the calculation results, the computing module can support the decision-making process, such as determining when to start or stop the sliding process. The signal transmission module is responsible for transmitting signals between the modules inside the controller and between the controller and external devices to ensure that data is transmitted synchronously between different modules to avoid data loss or delay. The signal processing module is responsible for analyzing the signals collected from the sensors and the signals of the displacement sensors to identify patterns, trends or anomalies, filter and eliminate noise, filter the signals, eliminate noise, and improve signal quality. The control module executes corresponding control commands according to the decisions of the computing module and the analysis results of the signal processing module. The control module is responsible for controlling the sliding process of the jack, including starting, stopping and adjusting the sliding speed. The control module is also responsible for activating the locking mechanism to ensure that the jack can be safely locked after reaching a preset height.

[0035] Working principle: When in use, by controlling the second hydraulic rod 901 to extend, the second hydraulic rod 901 pushes the chuck 903 to move, and then pushes the base plate 905 and the multiple needle heads 907 to move inward, slightly puncture the surface of the guide rod 5, and then control the second hydraulic rod 901 to contract. The tiny holes on the surface of the guide rod 5 can provide greater friction when the sliding jack body 1 is clamped again, thereby improving the stability of the equipment. The existing automatic limit device cooperates with the displacement sensor to detect the height of the displacement, thereby improving the accuracy of the sliding height, thereby improving the overall quality and efficiency of the slipform construction. After reaching the top, the integrated controller 12 controls the extension of the multiple first hydraulic rods 703, and the multiple first hydraulic rods 703 push the multiple clamping blocks 704 to slide along the multiple step grooves 702. The multiple clamping blocks 704 are clamped on the outside of the guide rod 5 for locking to prevent the jack from sliding due to mechanical failure or external interference, thereby ensuring the stability of the template, and automatically locking to reduce maintenance and adjustments due to unstable jack sliding, thereby reducing maintenance costs.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic limit device for a sliding jack, comprising a sliding jack body (1) and a guide rod (5), wherein the sliding jack body (1) is sleeved on the outside of the guide rod (5), and is characterized in that: A top cover (2) is provided at the upper end of the sliding jack body (1) outside the guide rod (5), a ring seat (8) is provided on the upper end surface of the top cover (2), a shell (3) is threadedly sleeved on the upper outer side of the ring seat (8), a cover plate (4) is provided at the upper end of the shell (3), a plurality of piercing structures (9) are arranged in a ring shape at the upper inner side wall of the shell (3), a battery module (6) is provided on the inner side wall of the shell (3) at the lower end of the plurality of piercing structures (9), a limiting structure (7) is provided on the inner side wall of the shell (3) at the lower end of the battery module (6), a displacement sensor (13) is provided at one side of the center of the lower inner wall of the shell (3), and an integrated controller (12) is provided at the upper end of the displacement sensor (13); The limiting structure (7) comprises a base (701), a plurality of stepped grooves (702), a plurality of first hydraulic rods (703) and a plurality of clamping blocks (704); the base (701) is fixedly connected to the inner wall of the shell (3); the plurality of stepped grooves (702) are arranged in a circular shape on the lower end surface of the base (701); the plurality of first hydraulic rods (703) are respectively fixedly connected to the inside of the plurality of stepped grooves (702) by bolts; the plurality of clamping blocks (704) are respectively arranged on the output ends of the plurality of first hydraulic rods (703) and are respectively slidably connected to the inner sides of the stepped grooves (702).

2. The automatic limit device for sliding form jack according to claim 1 is characterized in that: The piercing structure (9) comprises a second hydraulic rod (901), a connecting seat (902), a chuck (903), a block (904), a base plate (905), a curved surface (906) and a plurality of piercing heads (907); the second hydraulic rod (901) is fixedly connected to the inner wall of the housing (3); the connecting seat (902) is fixedly connected to the output end of the second hydraulic rod (901); the chuck (903) is fixedly connected to the other end of the connecting seat (902); the block (904) is sleeved on the upper outer side of the chuck (903); the base plate (905) is fixedly connected to the inner side wall of the block (904); the curved surface (906) is provided on the inner side wall of the base plate (905); and the plurality of piercing heads (907) are arranged in a rectangular shape on the curved surface (906).

3. The automatic limit device for sliding form jack according to claim 2 is characterized in that: An opening is provided on the lower end surface of the clamping block (904), and the clamping block (904) is fixedly connected to the chuck (903) by means of screws.

4. The automatic limit device for sliding form jack according to claim 1 is characterized in that: A storage groove (11) is provided at the edge of the lower end surface of the shell (3), and a pressure sensor (10) is provided inside the storage groove (11).

5. The automatic limit device for sliding form jack according to claim 1 is characterized in that: The integrated controller (12) also includes a calculation module, a signal transmission module, a signal processing module and a control module.

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