Automatic limiting device for sliding mode jack

Abstract

This invention provides an automatic limiting device for a sliding formwork jack, relating to the field of sliding formwork jack technology. The automatic limiting device includes a sliding jack body and a guide rod. The sliding jack body is sleeved on the outside of the guide rod. A top cover is provided at the upper end of the sliding jack body outside the guide rod. A ring seat is provided on the upper surface of the top cover. A housing is threaded onto the upper part of the outer side of the ring seat. A cover plate is provided at the upper end of the housing. Multiple perforated structures are arranged in a ring on the upper part of the inner side wall of the housing. A battery module is provided on the inner side wall of the housing below the multiple perforated structures. By controlling the extension of multiple first hydraulic rods, the multiple first hydraulic rods push multiple clamping blocks to slide along multiple stepped grooves. The multiple clamping blocks are locked to the outside of the guide rod, preventing jack slippage due to mechanical failure or external interference, ensuring the stability of the formwork, and reducing maintenance and adjustments required due to unstable jack lifting.

Description

Technical Field

[0001] This invention relates to the field of sliding formwork jack technology, specifically to an automatic limiting device for sliding formwork jacks. Background Technology

[0002] A slipform jack is a piece of equipment used in slipform construction. It is used to vertically lift the formwork during concrete pouring. Slipform jacks are usually hydraulically driven, using the pressure of hydraulic oil to push the formwork upward. They are mainly used in slipform construction for 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, vertical displacement of the formwork is measured using devices such as linear variable differential transformers or capacitive sensors, and the jack stops when it reaches the top.

[0003] There are still some problems in the use of existing sliding formwork jack limit devices. When the sliding formwork is moved to the top, when the template reaches the preset height, the limit switch is triggered and sends a signal to the control system to stop the jack from sliding further. However, it cannot ensure the stability of the template during the sliding process, especially when encountering external interference. Moreover, the maintenance of the limit structure may be more difficult, especially in high-altitude working environments. Therefore, those skilled in the art provide an automatic limit device for sliding formwork jacks to solve the problems mentioned in the background art. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an automatic limiting device for sliding formwork jacks, which solves the problem of not being able to ensure the stability of the template during the sliding process, especially when encountering external interference, and the fact that maintenance of the limiting structure may be more difficult, particularly in high-altitude working environments.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic limiting device for a sliding formwork jack, comprising a sliding jack body and a guide rod. The sliding jack body is sleeved on the outside of the guide rod. A top cover is provided at the upper end of the sliding jack body outside the guide rod. A ring seat is provided on the upper surface of the top cover. A housing is threaded onto the upper part of the outer side of the ring seat. A cover plate is provided at the upper end of the housing. Multiple perforated structures are arranged in a ring on the upper part of the inner wall of the housing. A battery module is provided on the inner wall of the housing below the multiple perforated structures. A limiting structure is provided on the inner wall of the housing below the battery module. A displacement sensor is provided on one side of the center of the lower inner wall of the housing. The displacement sensor, in conjunction with the existing automatic limiting device, detects the height of the displacement, improving the accuracy of the sliding height, thereby improving the overall quality and efficiency of the sliding formwork construction. An integrated controller is provided at the upper end of the displacement sensor.

[0008] The limiting structure includes a base, multiple stepped grooves, multiple first hydraulic rods, and multiple clamping blocks. The base is fixedly connected to the inner wall of the housing. The multiple stepped grooves are arranged in a circular pattern on the lower end surface of the base. The multiple first hydraulic rods are respectively fixedly connected to the inside of the multiple stepped grooves by bolts. The multiple clamping blocks are respectively disposed on the output ends of the multiple first hydraulic rods and are slidably connected to the inside of the stepped grooves. 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. The multiple clamping blocks are locked to the outside of the guide rods to prevent the jack from sliding due to mechanical failure or external interference, ensuring the stability of the template. Through automatic locking, maintenance and adjustments due to unstable jack lifting are reduced, thus lowering maintenance costs.

[0009] Preferably, the perforation structure includes a second hydraulic rod, a connecting seat, a chuck, a clamping block, a base plate, an arc surface, and multiple perforation needles. The second hydraulic rod is fixedly connected to the inner side wall of the housing. 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 clamping block is sleeved on the upper outer side of the chuck. The base plate is fixedly connected to the inner side wall of the clamping block. The arc surface is formed on the inner side wall of the base plate. Multiple perforation needles are arranged in a rectangular pattern on the arc surface. The second hydraulic rod is extended by an integrated controller. The second hydraulic rod pushes the chuck to move, and then pushes the base plate and multiple perforation needles to move inward to make slight perforations on the surface of the guide rod. Then, the second hydraulic rod is controlled to retract. The tiny grooves on the surface of the guide rod can provide greater friction when the sliding jack body clamps again, improving the stability of the equipment.

[0010] Preferably, the lower end face of the card block is provided with an opening, and the card block and the chuck are fixedly connected by screws, which facilitates the disassembly and assembly of the card block and the replacement of the needle tip.

[0011] Preferably, a storage groove is provided at the lower end face of the housing near the edge, and a pressure sensor is provided inside the storage groove. The pressure sensor monitors whether the sliding jack continues to work after being locked. When the pressure sensor reaches the threshold set by the pressure sensor, an alarm is issued in a timely manner through the integrated controller to provide early warning, thereby improving the safety of equipment use.

[0012] Preferably, the integrated controller further includes a calculation module, a signal transmission module, a signal processing module, and a control module. The calculation module is responsible for processing data from sensors and other input devices, including displacement information provided by displacement sensors. Based on the calculation results, the calculation module can support decision-making processes, such as determining when to start or stop the jacking process. The signal transmission module is responsible for transmitting signals between modules within the controller and between the controller and external devices, ensuring synchronous data transmission between different modules and avoiding data loss or delay. The signal processing module is responsible for analyzing signals collected from sensors, including displacement sensor signals, to identify patterns, trends, or anomalies, and performing filtering and noise cancellation to improve signal quality. The control module executes corresponding control commands based on the decisions of the calculation module and the analysis results of the signal processing module. The control module is responsible for controlling the jacking process, including starting, stopping, and adjusting the jacking 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] This invention provides an automatic limiting device for a sliding mold jack. It has the following advantages:

[0015] 1. In this invention, by controlling the extension of multiple first hydraulic rods, multiple first hydraulic rods push multiple clamping blocks to slide along multiple stepped grooves. Multiple clamping blocks are locked on the outside of the guide rod to prevent the jack from sliding due to mechanical failure or external interference, thus ensuring the stability of the template. Through automatic locking, maintenance and adjustments due to unstable jack lifting are reduced, thereby lowering maintenance costs.

[0016] 2. In this 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 to make slight holes on the surface of the guide rod. Then, the second hydraulic rod is controlled to retract. The tiny holes and grooves on the surface of the guide rod can provide greater friction when the sliding jack body clamps again, thereby improving the stability of the equipment.

[0017] 3. In this invention, a pressure sensor monitors whether the sliding jack continues to work after being locked. When the pressure sensor reaches the threshold set by the pressure sensor, an alarm is issued in a timely manner to provide early warning, thereby improving the safety of the equipment.

[0018] 4. In this invention, the existing automatic limit device is combined with a displacement sensor to detect the height of the displacement, thereby improving the accuracy of the slipform height and thus improving the overall quality and efficiency of slipform construction. Furthermore, the threaded connection between the housing and the ring seat facilitates disassembly and assembly, improving convenience. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

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

[0021] Figure 3 This is a perspective sectional view of the housing of the present invention;

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

[0023] Figure 5 This is a perspective view of the perforation structure of the present invention;

[0024] Figure 6 This is a perspective view of the perforation structure of the present invention from another angle.

[0025] The components include: 1. Sliding jack body; 2. Top cover; 3. Shell; 4. Cover plate; 5. Guide rod; 6. Battery module; 7. Limiting structure; 701. Base; 702. Stepped groove; 703. First hydraulic rod; 704. Clamping block; 8. Ring seat; 9. Punching structure; 901. Second hydraulic rod; 902. Connecting seat; 903. Chuck; 904. Clamping block; 905. Base plate; 906. Curved surface; 907. Punching needle; 10. Pressure sensor; 11. Storage tank; 12. Integrated controller; 13. Displacement sensor. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Example 1:

[0028] like Figure 1-6As shown, this embodiment of the invention provides an automatic limiting device for a sliding 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 surface of the top cover 2. A housing 3 is threadedly connected to the upper part of the outer side of the ring seat 8. The threaded connection between the housing 3 and the ring seat 8 facilitates the installation and disassembly of the housing 3, making it easy to install before and after use and disassemble and maintain after use. A cover plate 4 is provided at the upper end of the housing 3. Multiple perforated structures 9 are arranged in a ring on the upper part of the inner side wall of the housing 3. The multiple perforated structures 9 are activated by an integrated controller 12 to perforate small grooves on the outside of the guide rod 5, which helps to increase the friction between the sliding jack 1 and the guide rod 5, thereby improving stability.

[0029] A battery module 6 is installed on the inner wall of the lower shell 3 of the multiple perforated structures 9, which supplies power. A limiting structure 7 is installed on the inner wall of the lower shell 3 of the battery module 6. The limiting structure 7 provides a limit after reaching the top position to prevent the jack from sliding due to mechanical failure or external interference, thus ensuring the stability of the template. The automatic locking reduces the maintenance and adjustment required due to the instability of the jack during sliding, thereby reducing maintenance costs. It also provides a certain degree of stability during the sliding process, preventing dangerous situations caused by the failure of the sliding jack body 1. A displacement sensor 13 is installed on one side of the center of the lower inner wall of the shell 3. The displacement sensor 13 detects the height of the displacement in conjunction with the existing automatic limiting device, thereby improving the accuracy of the sliding height and improving the overall quality and efficiency of the slipform construction. An integrated controller 12 is installed on the upper end of the displacement sensor 13 for integrated control.

[0030] The limiting structure 7 includes a base 701, multiple stepped grooves 702, multiple first hydraulic rods 703, and multiple clamping blocks 704. The base 701 is fixedly connected to the inner wall of the housing 3. The multiple stepped grooves 702 are arranged in a circular pattern 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 stepped grooves 702 by bolts. The multiple clamping blocks 704 are respectively disposed on the output ends of the multiple first hydraulic rods 703 and are slidably connected to the inside of the stepped 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 stepped grooves 702. The multiple clamping blocks 704 are clamped and locked on the outside of the guide rod 5.

[0031] The piercing structure 9 includes a second hydraulic rod 901, a connecting seat 902, a chuck 903, a locking block 904, a base plate 905, an arc surface 906, and multiple piercing needles 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 locking 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 locking block 904. The arc surface 906 is formed by... On the inner sidewall of the substrate 905, multiple needle heads 907 are arranged in a rectangular shape on the arc surface 906. The second hydraulic rod 901 is extended by the integrated controller 12. The second hydraulic rod 901 pushes the chuck 903 to move, and then pushes the substrate 905 and the multiple needle heads 907 to move inward, making slight holes in the surface of the guide rod 5. Then the second hydraulic rod 901 is controlled to retract. The tiny holes and grooves on the surface of the guide rod 5 can provide greater friction when the sliding jack body 1 clamps again, improving the stability of the equipment.

[0032] The lower end face of the card block 904 has an opening, and the card block 904 and the chuck 903 are fixedly connected by screws, which facilitates the disassembly and assembly of the card block 904 and the replacement of the needle head 907.

[0033] A storage tank 11 is provided near the edge of the lower end face of the housing 3. A pressure sensor 10 is provided inside the storage tank 11. The pressure sensor 10 monitors whether the sliding jack body 1 continues to work after being locked. When the threshold set by the pressure sensor 10 is reached, an alarm is issued in time through the integrated controller 12 to provide early warning, thereby improving the safety of equipment use.

[0034] The integrated controller 12 also includes a calculation module, a signal transmission module, a signal processing module, and a control module. The calculation module is responsible for processing data from sensors and other input devices, as well as displacement information provided by the displacement sensor 13. Based on the calculation results, the calculation 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 within the controller and between the controller and external devices, ensuring synchronous data transmission between different modules and avoiding data loss or delay. The signal processing module is responsible for analyzing signals collected from sensors, including signals from the displacement sensor, to identify patterns, trends, or anomalies, and performing filtering and noise cancellation to improve signal quality. The control module executes corresponding control commands based on the decisions of the calculation 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 the preset height.

[0035] Working principle: During use, by controlling the extension of the second hydraulic rod 901, the second hydraulic rod 901 pushes the chuck 903 to move, and then pushes the base plate 905 and multiple piercing heads 907 to move inward, making slight holes on the surface of the guide rod 5. Then, the second hydraulic rod 901 is controlled to retract. The tiny holes and grooves on the surface of the guide rod 5 can provide greater friction when the slipform jack body 1 clamps again, improving the stability of the equipment. With the existing automatic limit device and displacement sensor to detect the height of displacement, the accuracy of the slipform height is improved, thereby improving the overall quality and efficiency of slipform construction. After reaching the top, the integrated controller 12 controls the extension of multiple first hydraulic rods 703. The multiple first hydraulic rods 703 push multiple clamping blocks 704 to slide along multiple stepped grooves 702. The multiple clamping blocks 704 clamp and lock on the outside of the guide rod 5 to prevent the jack from sliding due to mechanical failure or external interference, ensuring the stability of the template. Through automatic locking, maintenance and adjustment due to unstable slipform lifting of the jack are reduced, thus reducing maintenance costs.

[0036] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sliding mode jack automatic limiting device, comprising a sliding mode jack body (1) and a guide rod (5), the sliding mode jack body (1) is sleeved outside the guide rod (5), characterized in that: The guide rod (5) has a top cover (2) on the upper end of the sliding jack body (1). The top cover (2) has a ring seat (8) on the upper surface. The ring seat (8) is threaded onto the upper part of the outer side of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the inner wall of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the inner wall of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the lower ... upper part of the lower part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the lower part of the inner wall of the upper part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the lower part of the upper part of the upper part of the lower part of the upper part of the upper part of the upper part of the lower part of the The limiting structure (7) includes a base (701), multiple stepped grooves (702), multiple first hydraulic rods (703), and multiple clamping blocks (704). The base (701) is fixedly connected to the inner wall of the housing (3). The multiple stepped grooves (702) are arranged in a circular pattern on the lower end face of the base (701). The multiple first hydraulic rods (703) are fixedly connected to the inside of the multiple stepped grooves (702) by bolts. The multiple clamping blocks (704) are respectively arranged on the output end of the multiple first hydraulic rods (703) and are slidably connected to the inside of the stepped grooves (702). The piercing structure (9) includes a second hydraulic rod (901), a connecting seat (902), a chuck (903), a locking block (904), a base plate (905), an arc surface (906), and a plurality of piercing needles (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 locking 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 locking block (904). The arc surface (906) is opened on the inner side wall of the base plate (905). The plurality of piercing needles (907) are arranged in a rectangular shape on the arc surface (906).

2. The automatic limiting device of the sliding form jack according to claim 1, characterized in that: The lower end face of the card block (904) is provided with an opening, and the card block (904) and the chuck (903) are fixedly connected by screws.

3. The automatic limiting device of the sliding form jack according to claim 1, characterized in that: The lower end face of the housing (3) is provided with a storage groove (11) near the edge, and a pressure sensor (10) is provided inside the storage groove (11).

4. The automatic limiting device of the sliding form jack according to claim 1, characterized in that: The integrated controller (12) also includes a computing module, a signal transmission module, a signal processing module and a control module.

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