Truss safety protection double-door interlocking device and control method thereof

Abstract

The invention provides a truss safety protection double-door interlocking device and a control method thereof, and relates to the technical field of automatic truss.The truss safety protection double-door interlocking device comprises a support, an auxiliary structure, a fixing structure and a connecting structure, two translation assemblies are installed on the surface of the support, and moving strips are installed on the sides, close to each other, of the two translation assemblies; a second moving device is installed on the surface of the moving strip, a first moving device is installed on one side of the second moving device, a sliding strip is installed on the inner wall of the first moving device, a clamping device is arranged at the lower end of the sliding strip, and the clamping device is connected with the sliding strip through a connecting structure. And four connecting frames are arranged in the bracket. According to the invention, double-door interlocking, continuous signal detection and physical barrier triple protection can be conveniently carried out; and in addition, only the task of the equipment is suspended during single-equipment maintenance, the truss and other equipment continuously operate, and the device also has the effect of relatively high compatibility.

Description

Technical Field

[0001] This invention relates to the field of automatic truss technology, and in particular to a double-door interlocking device for truss safety protection and its control method. Background Technology

[0002] Automated trusses generally refer to a mechanical device or structure used in construction and engineering to automatically erect and adjust trusses. A truss itself is a structure composed of straight members and connectors, and is widely used in bridges, roofs, and other large buildings.

[0003] Existing technologies, such as the invention with publication number CN114735630A, disclose an automatic truss. This patent employs supporting columns; an X-beam guide rail mechanism, installed on the supporting columns, including an X-beam guide rail, an X-direction conductive sliding contact, an X-direction drive mechanism, an X-beam guide rail rack, and an X-beam guide rail sliding contact line; a Y-beam guide rail mechanism, including a Y-beam guide rail, a Y-beam communication control box, a Y-direction drive mechanism, a Y-direction conductive sliding contact, a Y-beam guide rail rack, and a Y-beam guide rail sliding contact line, with both ends of the Y-beam guide rail connected to the X-beam guide rail via a Y-beam support frame, and the Y-beam communication control box connected to the X-direction drive mechanism; and a Z-beam guide rail mechanism, including a Z-beam guide rail, a Z-direction drag chain, a Z-direction drive mechanism, a Z-beam communication control box, a Z-beam support frame, and a Z-direction rack, with the Z-beam support frame installed on the Z-beam guide rail and moving along the Z-beam guide rail, and the Z-beam guide rail mechanism connected to the Y-beam guide rail via the Z-beam support frame and moving along the Y-beam guide rail.

[0004] The inventors discovered during use that in the current squaring and grinding process, the automatic gantry conveys materials along the equipment layout direction. Each piece of equipment is equipped with an independent safety net and interlocking protective doors. When personnel open the doors and enter the equipment interaction area, the gantry immediately stops operating. Opening any interlocking protective door causes the entire line to stop, requiring all doors to be closed before it can be restored, severely slowing down the production cycle. Moreover, if the interlocking protective doors fail or are accidentally closed after personnel enter, operation may restart, posing a safety risk. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies in reducing the operational risks of trusses, and to propose a double-door interlocking device and its control method for truss safety protection.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a double-door interlocking device for truss safety protection and its control method, comprising a support, an auxiliary structure, a fixing structure, and a connecting structure. Two translational components are mounted on the surface of the support. A moving strip is mounted on one side of the two translational components that are close to each other. A second moving device is mounted on the surface of the moving strip. A first moving device is mounted on one side of the second moving device. A slide is mounted on the inner wall of the first moving device. A clamping device is provided at the lower end of the slide. The clamping device is connected to the slide via the connecting structure. Four connecting frames are provided inside the support. All four connecting frames are connected to the support via the fixing structure. A platform is fixedly connected to the upper end of each connecting frame. Two auxiliary structures are provided on the inner wall of the platform. The auxiliary structures include two slides... The table has two sliding grooves, each slidably connected to a slider on its inner wall. A cover plate is fixedly connected to the side of the two sliders that are close to each other. A safety net is fixedly connected to the lower surface of the table. A door panel is installed on the inner wall of the safety net. A request button is installed on the side of the safety net near the door panel. A fixing plate is fixedly connected to the upper surface of the table. A connecting plate is fixedly connected to the upper surface of the cover plate. A hydraulic rod is installed on the side of the fixing plate near the connecting plate. The output end of the hydraulic rod is fixedly connected to the connecting plate. An auxiliary groove and a connecting groove are respectively formed on the inner wall of the cover plate. A second contact component is installed inside the auxiliary groove, and a first contact component is installed inside the connecting groove. Top blocks are fixedly connected to both ends of the cover plate, with each top block corresponding to the first and second contact components, respectively.

[0007] By adopting the above technical solution, when personnel need to enter, pressing the project request button will cause the truss to determine the current task status. If the equipment task is not being performed, the top plate will automatically close, the hydraulic rod will be activated, the hydraulic rod will move the connecting plate, the connecting plate will move the top plate, and the top plate will move the slider along the inner wall of the chute. After moving to the appropriate position, the cover plate will move the top block to contact the second contact element. The top plate arrival signal will remain active, and then the door interlock will be opened, allowing personnel to enter. If a task is being performed, the request button will flash. After the task is completed, the cover plate will close, and then the door interlock will unlock. In an emergency, the system can be stopped directly by pressing the button.

[0008] When personnel exit, close the door panel, press the request button to reset, then the hydraulic rod drives the cover plate to open, then the cover plate drives the top block to contact the first contact element, then the cover plate position signal remains active, and then the truss resumes its task.

[0009] Preferably, the top block has a rectangular cross-section and is a rubber block.

[0010] By adopting this preferred solution, the rubber sheet material not only provides convenient protection for the first and second contact components, but also has a certain degree of elasticity, which can provide a certain degree of cushioning.

[0011] Preferably, a limiting rod is fixedly connected inside the groove, and the limiting rod is slidably connected to the slider.

[0012] By adopting this preferred solution, the limiting rod can limit the slider, preventing the slider from deviating when sliding on the inner wall of the groove, thus improving the stability of the slider sliding.

[0013] Preferably, the surface of the bracket is provided with four fixing structures, each fixing structure including a connecting ring, the connecting ring being fixedly connected to the bracket, a fixing ring being fixedly connected to the surface of the connecting frame, a sleeve rod being fixedly connected to the side of the fixing ring near the connecting ring, a slide rod being slidably connected to the inner wall of the sleeve rod, a connecting block being fixedly connected to the end of the connecting ring near the slide rod, the connecting block being slidably connected to the slide rod, the connecting block and the inner wall of the slide rod being slidably connected to the same insert rod, the insert rod being slidably connected to both ends of the slide plate, and a spring being provided inside the slide plate, the two ends of the spring being fixedly connected to the slide plate and the sleeve plate respectively.

[0014] This preferred solution achieves the following: when it is necessary to connect the bracket and the connecting frame, the sliding rod is pulled to move, and the sliding rod slides on the inner wall of the sleeve rod. The sliding rod drives the spring to stretch, and then the sliding rod is aligned with the connecting block. The connecting block is then inserted into the connecting block, and then the insert rod is pulled to move, aligning the insert rod with the connecting block and the sleeve rod. The insert rod is then inserted into the connecting block and the sleeve rod, and the insert rod fixes the internal sliding rod. When it is necessary to separate the bracket and the connecting frame, the insert rod is pulled out, and then the spring's rebound force causes the sliding rod to quickly separate from the connecting block.

[0015] Preferably, positioning rods are fixedly connected to both sides of the slide plate, and the positioning rods are slidably connected to the sleeve plate.

[0016] By adopting this preferred solution, the positioning rod can limit the sliding rod, preventing the sliding rod from deviating when sliding on the inner wall of the sleeve, thus improving the stability of the sliding rod.

[0017] Preferably, an auxiliary rod is fixedly connected inside the sleeve rod, the auxiliary rod is slidably connected to the slide rod, and the spring is sleeved on the arc surface of the auxiliary rod.

[0018] By adopting this preferred solution, the auxiliary rod can limit the spring, preventing the spring from deforming during use and improving the service life of the spring.

[0019] Preferably, the upper surface of the clamping device is provided with a connecting structure, the connecting structure including a fixed frame, the fixed frame being slidably connected to a slide bar, a slide frame being slidably connected to the surface of the slide bar, slots being provided on both sides of the slide bar, limit blocks being fixedly connected to both sides of the fixed frame, a rotating shaft being rotatably connected to the inner wall of the limit block, a connecting block being fixedly connected to the arc surface of the rotating shaft, a locking plate being fixedly connected to the end of the connecting block away from the rotating shaft, the locking plate engaging with the slot, and coil springs being sleeved on the arc surfaces at both ends of the rotating shaft, the two ends of the coil springs being fixedly connected to the limit block and the connecting block respectively.

[0020] This preferred solution achieves the following: when the clamping device needs to be installed, the clamping device is pulled to move, then the clamping device moves the fixed frame, then the fixed frame is aligned with the slide bar, then the fixed frame is inserted into the slide bar, then the connecting block is pulled to move, the connecting block moves the rotating shaft, the rotating shaft rotates on the inner wall of the limiting block, the connecting block drives the coil spring to retract, the connecting block drives the clamping plate to move, after moving to the appropriate position, the connecting block coil spring is released to retract and drive the clamping plate to be locked into the slot for fixation, then the slide frame is pulled to move and the slide frame is fitted onto the clamping plate for fixation.

[0021] Preferably, a plurality of friction pads are fixedly connected to both sides of the slide frame, and the plurality of friction pads are evenly distributed on the slide frame.

[0022] By adopting this preferred solution, the friction pad can increase the friction between the hand and the slide frame, thus preventing slippage when the slide frame is pulled.

[0023] Preferably, a protective pad is fixedly connected to one end of the connecting block near the card plate, and the protective pad has a rectangular cross-section.

[0024] By adopting this preferred solution, the protective pad can protect the upper part of the slide frame and the connecting block, thus preventing excessive wear during use.

[0025] Preferably, in step S1, when personnel need to enter, they press the request button. The truss then determines the current task status. If the task is not being performed, the top plate is automatically closed, and the hydraulic rod is activated. The hydraulic rod moves the connecting plate, which in turn moves the top plate. The top plate then moves the slider along the inner wall of the chute. After moving to the appropriate position, the cover plate moves the top block to contact the second contact element. The top plate position signal remains active, and then the door interlock is opened, allowing personnel to enter. If a task is being performed, the request button flashes. After the task is completed, the cover plate is closed, and the door interlock is unlocked. In an emergency, the system can be stopped directly by pressing the button.

[0026] When personnel exit, close the door panel, press the request button to reset, then the hydraulic rod drives the cover plate to open, then the cover plate drives the top block to contact the first contact element, then the cover plate position signal remains active, and then the truss resumes its task.

[0027] S2. When it is necessary to connect the bracket and the connecting frame, pull the slide rod to move it. The slide rod slides on the inner wall of the sleeve rod, and the slide rod drives the spring to stretch. Then, align the slide rod with the connecting block, and then insert the connecting block into the connecting block. Then, pull the insert rod to move it, align the insert rod with the connecting block and the sleeve rod, and then insert the insert rod into the connecting block and the sleeve rod. The insert rod fixes the slide rod inside. When it is necessary to separate the bracket and the connecting frame, pull out the insert rod, and then the spring's rebound force drives the slide rod to quickly separate from the connecting block.

[0028] S3. When it is necessary to install the clamping device, pull the clamping device to move it, and then the clamping device will move the fixed frame. Then, align the fixed frame with the slide bar, insert the fixed frame into the slide bar, and then pull the connecting block to move it. The connecting block will move the rotating shaft, which will rotate on the inner wall of the limit block. The connecting block will cause the coil spring to retract, and the connecting block will cause the card plate to move. After moving to the appropriate position, release the connecting block coil spring to retract it and cause the card plate to be inserted into the card slot for fixation. Then, pull the slide frame to move it and put the slide frame onto the card plate for fixation.

[0029] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0030] 1. In this invention, by setting up an auxiliary structure, the existing technology of automatic gantry conveying materials along the equipment layout direction in the current square milling process is improved. Each piece of equipment is equipped with an independent safety net and interlocking protective door. When personnel open the door to enter the equipment interaction area, the gantry stops running. Opening any interlocking protective door will cause the entire line to stop, requiring all doors to be closed before it can be restored, which seriously slows down the production cycle. Moreover, if the interlocking protective door fails or is accidentally closed after personnel enter, it may restart the operation, causing safety risks. This device achieves convenient double-door interlocking, continuous signal detection, and physical barriers, providing triple protection. Furthermore, single-equipment maintenance only suspends the task of that equipment, while the gantry and other equipment continue to run. In addition, this device also has strong compatibility.

[0031] 2. In this invention, by setting a fixed structure, the bracket and the connecting frame can be easily connected, avoiding the truss from shifting during use, which would cause the bracket and the platform to misalign and make it difficult to align the clamping device. This device can facilitate the quick and easy installation of the bracket and the connecting frame.

[0032] 3. In this invention, by setting a connection structure, the clamping device can be easily and quickly installed or disassembled. This not only makes it easy to replace the clamping device, but also makes it easy to regularly inspect and maintain the clamping device. Attached Figure Description

[0033] Figure 1 A three-dimensional structural schematic diagram of a double-door interlocking device for truss safety protection and its control method proposed in this invention;

[0034] Figure 2 A schematic diagram of the auxiliary structure for a double-door interlocking device and its control method for truss safety protection proposed in this invention;

[0035] Figure 3 This invention proposes a double-door interlocking device and its control method for truss safety protection. Figure 2 Enlarged view of point A;

[0036] Figure 4 This invention proposes a double-door interlocking device and its control method for truss safety protection. Figure 2 Enlarged view of point B;

[0037] Figure 5 A schematic diagram of the fixed structure of a double-door interlocking device and its control method for truss safety protection proposed in this invention;

[0038] Figure 6 This invention proposes a double-door interlocking device and its control method for truss safety protection. Figure 5 Partial structural diagram;

[0039] Figure 7 A schematic diagram of the connection structure of a double-door interlocking device and its control method for truss safety protection proposed in this invention;

[0040] Figure 8 This invention proposes a double-door interlocking device and its control method for truss safety protection. Figure 7 Enlarged view of point C;

[0041] Figure 9 This invention proposes a double-door interlocking device and its control method for truss safety protection. Figure 7 Enlarged view of point D.

[0042] Legend: 1. Bracket; 2. Translation assembly; 3. Moving bar; 4. First moving device; 5. Second moving device; 6. Sliding bar; 7. Auxiliary structure; 701. Safety net; 702. Cover plate; 703. Slide groove; 704. Hydraulic rod; 705. Fixing plate; 706. Connecting plate; 707. Door panel; 708. Request button; 709. Auxiliary groove; 710. Connecting groove; 711. Top block; 712. First contact assembly; 713. Limiting rod; 714. Sliding block; 715. Second contact assembly 8. Contact component; 8. Fixing structure; 81. Fixing ring; 82. Connecting ring; 83. Connecting block; 84. Slide rod; 85. Positioning rod; 86. Insert rod; 87. Sleeve rod; 88. Spring; 89. Auxiliary rod; 9. Connecting structure; 901. Fixing frame; 902. Slide frame; 903. Friction pad; 904. Slot; 905. Limiting block; 906. Connecting block; 907. Protective pad; 908. Card plate; 909. Coil spring; 910. Rotating shaft; 10. Clamping device; 11. Connecting frame; 12. Table. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0044] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0045] Example 1, as Figure 1-9 As shown, the present invention provides a double-door interlocking device for truss safety protection and its control method, including a support 1, an auxiliary structure 7, a fixing structure 8 and a connecting structure 9. Two translation components 2 are installed on the surface of the support 1. A moving strip 3 is installed on the side of the two translation components 2 that are close to each other. A second moving device 5 is installed on the surface of the moving strip 3. A first moving device 4 is installed on one side of the second moving device 5. A slide 6 is installed on the inner wall of the first moving device 4. A clamping device 10 is provided at the lower end of the slide 6. The clamping device 10 is connected to the slide 6 by means of the connecting structure 9. Four connecting frames 11 are provided inside the support 1. All four connecting frames 11 are connected to the support 1 by means of the fixing structure 8. A platform 12 is fixedly connected to the upper end of the connecting frame 11. Two auxiliary structures 7 are provided on the inner wall of the platform 12. Four fixing structures 8 are provided on the surface of the support 1. The upper surface of the clamping device 10 is provided with the connecting structure 9.

[0046] The following section will explain the specific settings and functions of its auxiliary structure 7, fixing structure 8, and connecting structure 9.

[0047] like Figure 1 and Figure 4 As shown, the auxiliary structure 7 includes two slides 703, both of which are formed within the platform 12. A slider 714 is slidably connected to the inner wall of each slide 703. A cover plate 702 is fixedly connected to the side of the two sliders 714 that are close to each other. A safety net 701 is fixedly connected to the lower surface of the platform 12. A door panel 707 is installed on the inner wall of the safety net 701. A request button 708 is installed on the side of the safety net 701 near the door panel 707. A fixing plate 705 is fixedly connected to the upper surface of the platform 12. A connecting plate 706 is fixedly connected to the upper surface of the cover plate 702. A hydraulic rod 704 is installed on the side of the fixing plate 705 near the connecting plate 706. The output end of the hydraulic rod 704 is fixedly connected to the connecting plate 706. An auxiliary groove 709 and a connecting groove 710 are respectively formed on the inner wall of the cover plate 702. A second contact component 715 is installed inside the auxiliary groove 709, and a second contact component 715 is installed inside the connecting groove 710. A contact component 712 and a cover plate 702 are both fixedly connected to top blocks 711. The two top blocks 711 correspond to the first contact component 712 and the second contact component 715, respectively. When personnel need to enter, they press the request button 708. Then the truss judges the current task status. If the task of the equipment is not being performed, the top plate is automatically closed, and the hydraulic rod 704 is started to operate. The hydraulic rod 704 drives the connecting plate 706 to move, and the connecting plate 706 drives the top plate to move. The top plate drives the slider 714 to slide on the inner wall of the slide groove 703. After moving to the appropriate position, the cover plate 702 drives the top blocks 711 to contact the second contact component. The top plate position signal is continuously effective. Then the interlock of the door plate 707 is opened, and then personnel open the door to enter. If a task is being performed, the request button 708 flashes. After the task is completed, the cover plate 702 is closed, and then the interlock of the door plate 707 is unlocked. In case of emergency, it can be stopped directly.

[0048] When personnel exit, the door panel 707 is closed, the request button 708 is pressed to reset, and then the hydraulic rod 704 drives the cover plate 702 to open. Then the cover plate 702 drives the top block 711 to contact the first contact component. Then the cover plate 702 is in place signal and continues to be effective. Then the truss resumes its task. The top block 711 has a rectangular cross section and is a rubber block. The rubber material can not only protect the first contact component 712 and the second contact component 715, but also has a certain elasticity, which can provide a certain degree of cushioning. The slide groove 703 is fixedly connected to the inside of the slide bar 703. The limit rod 713 is slidably connected to the slider 714. The limit rod 713 can limit the slider 714 to avoid the slider 714 from deviating when sliding on the inner wall of the slide groove 703, thus improving the stability of the slider 714 sliding.

[0049] The entire auxiliary structure 7 achieves the following effects: it can easily perform double-door interlocking, as well as continuous signal detection and physical barriers, providing triple protection; moreover, single-device maintenance only suspends the operation of that device, while the truss and other equipment continue to operate, and this device also has strong compatibility.

[0050] like Figure 1 and Figure 3 As shown, the fixing structure 8 includes a connecting ring 82, which is fixedly connected to the bracket 1. A fixing ring 81 is fixedly connected to the surface of the connecting frame 11. A sleeve rod 87 is fixedly connected to the side of the fixing ring 81 near the connecting ring 82. A slide rod 84 is slidably connected to the inner wall of the sleeve rod 87. A connecting block 83 is fixedly connected to the end of the connecting ring 82 near the slide rod 84. The connecting block 83 is slidably connected to the slide rod 84. The same insert rod 86 is slidably connected to the inner wall of the connecting block 83 and the slide rod 84. The insert rod 86 is slidably connected to both ends of the slide plate. A spring 88 is provided inside the slide plate. The two ends of the spring 88 are fixedly connected to the slide plate and the sleeve plate, respectively. When it is necessary to connect the bracket 1 and the connecting frame 11, the slide rod 84 is pulled to move it. The slide rod 84 slides on the inner wall of the sleeve rod 87. The slide rod 84 drives the spring 88 to stretch. Then the slide rod 84 is aligned with the connecting block 83. Then the connecting block 83 is inserted into the connecting block 83. Then the connection is pulled... The movable insert rod 86 is moved to align with the connecting block 83 and the sleeve rod 87. Then, the insert rod 86 is inserted into the connecting block 83 and the sleeve rod 87, and the insert rod 86 fixes the internal sliding rod 84. When it is necessary to separate the bracket 1 from the connecting frame 11, the insert rod 86 is pulled out, and then the rebound force of the spring 88 drives the sliding rod 84 to quickly separate from the connecting block 83. Positioning rods 85 are fixedly connected to both sides of the slide plate. The positioning rods 85 are slidably connected to the sleeve plate. The positioning rods 85 can limit the sliding rod 84 to prevent the sliding rod 84 from deviating when sliding on the inner wall of the sleeve rod 87, thereby improving the sliding stability of the sliding rod 84. An auxiliary rod 89 is fixedly connected inside the sleeve rod 87. The auxiliary rod 89 is slidably connected to the sliding rod 84. The spring 88 is sleeved on the arc surface of the auxiliary rod 89. The auxiliary rod 89 can limit the spring 88 to prevent the spring 88 from deforming during use, thereby improving the service life of the spring 88.

[0051] The effect achieved by the entire fixed structure 8 is that it can facilitate the connection between the bracket 1 and the connecting frame 11, and avoid the truss from shifting during use, which would cause the bracket 1 and the platform 12 to be misaligned, making it difficult to align the clamping device 10. This device can facilitate the quick and easy installation of the bracket 1 and the connecting frame 11.

[0052] like Figure 1 and Figure 3As shown, the connecting structure 9 includes a fixed frame 901, which is slidably connected to the slide bar 6. A slide frame 902 is slidably connected to the surface of the slide bar 6. Slots 904 are provided on both sides of the slide bar 6. Limiting blocks 905 are fixedly connected to both sides of the fixed frame 901. A rotating shaft 910 is rotatably connected to the inner wall of the limiting block 905. A connecting block 906 is fixedly connected to the arc surface of the rotating shaft 910. A locking plate 908 is fixedly connected to the end of the connecting block 906 away from the rotating shaft 910. Engages with slot 904. Both ends of the rotating shaft 910 have coil springs 909 fitted onto their arc surfaces. The ends of the coil springs 909 are fixedly connected to the limiting block 905 and the connecting block 906, respectively. When the clamping device 10 needs to be installed, pull the clamping device 10 to move it. Then, the clamping device 10 moves the fixing frame 901. The fixing frame 901 is then aligned with the slide bar 6, and the fixing frame 901 is inserted into the slide bar 6. Then, pull the connecting block 906 to move it. 06 drives the rotating shaft 910 to move, and the rotating shaft 910 rotates on the inner wall of the limiting block 905. The connecting block 906 drives the coil spring 909 to retract, and the connecting block 906 drives the locking plate 908 to move. After moving to the appropriate position, the connecting block 906 is released, the coil spring 909 retracts, and the locking plate 908 is locked into the locking slot 904 for fixation. Then, the sliding frame 902 is pulled to move, and the sliding frame 902 is fitted onto the locking plate 908 for fixation. Both sides of the sliding frame 902 are fixed. Several friction pads 903 are connected and evenly distributed on the slide frame 902. The friction pads 903 can increase the friction between the hand and the slide frame 902 and prevent slippage when the slide frame 902 is pulled. A protective pad 907 is fixedly connected to one end of the connecting block 906 near the card plate 908. The protective pad 907 has a rectangular cross section and can protect the upper end of the slide frame 902 and the connecting block 906 to prevent excessive wear during use.

[0053] The effect achieved by the entire connection structure 9 is that it can facilitate the quick installation or disassembly of the clamping device 10, not only making it easy to replace the clamping device 10, but also making it easy to regularly inspect the clamping device 10.

[0054] The overall working principle is as follows: when personnel need to enter, they press the request button 708. The truss then determines the current task status. If the task is not being performed, the top plate is automatically closed, and the hydraulic rod 704 is activated. The hydraulic rod 704 drives the connecting plate 706 to move, which in turn drives the top plate to move. The top plate drives the slider 714 to slide on the inner wall of the slide groove 703. After moving to the appropriate position, the cover plate 702 drives the top block 711 to contact the second contact element. The top plate position signal remains active, and then the interlock of the door panel 707 is opened, allowing personnel to enter. If a task is being performed, the request button 708 flashes. After the task is completed, the cover plate 702 is closed, and then the door panel 707 interlock is unlocked. In an emergency, the device can be stopped directly by pressing the button.

[0055] When personnel exit, close the door panel 707, press the request button 708 to reset, then the hydraulic rod 704 drives the cover plate 702 to open, then the cover plate 702 drives the top block 711 to contact the first contact component, then the cover plate 702 position signal continues to be effective, and then the truss resumes its task. The rubber sheet material can not only conveniently protect the first contact component 712 and the second contact component 715, but also the rubber material has a certain elasticity, which can provide a certain degree of cushioning. The limit rod 713 can limit the slider 714 to prevent the slider 714 from deviating when sliding on the inner wall of the slide groove 703, thus improving the stability of the slider 714 sliding.

[0056] When it is necessary to connect the bracket 1 and the connecting frame 11, the slide rod 84 is pulled to move it. The slide rod 84 slides on the inner wall of the sleeve rod 87, and the slide rod 84 drives the spring 88 to stretch. Then, the slide rod 84 is aligned with the connecting block 83, and the connecting block 83 is inserted into it. Then, the insertion rod 86 is pulled to move it, aligning the insertion rod 86 with the connecting block 83 and the sleeve rod 87, and then the insertion rod 86 is inserted into the connecting block 83 and the sleeve rod 87. The insertion rod 86 is positioned relative to the slide rod 84 inside. When the bracket 1 and connecting frame 11 need to be separated, the insertion rod 86 is pulled out, and then the rebound force of the spring 88 drives the slide rod 84 to quickly separate from the connecting block 83. The positioning rod 85 can limit the slide rod 84 to prevent it from deviating when sliding on the inner wall of the sleeve rod 87, thus improving the stability of the slide rod 84. The auxiliary rod 89 can limit the spring 88 to prevent it from deforming during use, thus improving the service life of the spring 88.

[0057] When the clamping device 10 needs to be installed, pull the clamping device 10 to move it. Then, the clamping device 10 moves the fixing frame 901. Then, the fixing frame 901 is aligned with the slide bar 6, and the fixing frame 901 is inserted into the slide bar 6. Then, pull the connecting block 906 to move it. The connecting block 906 moves the rotating shaft 910. The rotating shaft 910 rotates on the inner wall of the limit block 905. The connecting block 906 drives the coil spring 909 to retract. The connecting block 906 drives the clamping plate 908 to move inward. The slide is moved, and after it moves to the appropriate position, the connecting block 906 is released and the coil spring 909 retracts, causing the locking plate 908 to be locked into the slot 904 for fixation. Then, the slide frame 902 is pulled to move and is put onto the locking plate 908 for fixation. The friction pad 903 can increase the friction between the hand and the slide frame 902 to prevent slippage when the slide frame 902 is pulled. The protective pad 907 can protect the upper end of the slide frame 902 and the connecting block 906 to prevent excessive wear during use.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A double-door interlocking device for truss safety protection and its control method, comprising a support (1), an auxiliary structure (7), a fixing structure (8), and a connecting structure (9), characterized in that: Two translation components (2) are mounted on the surface of the bracket (1). A moving strip (3) is mounted on one side of the two translation components (2) that are close to each other. A second moving device (5) is mounted on the surface of the moving strip (3). A first moving device (4) is mounted on one side of the second moving device (5). A slide (6) is mounted on the inner wall of the first moving device (4). A clamping device (10) is provided at the lower end of the slide (6). The clamping device (10) is connected to the slide (6) by means of a connecting structure (9). The bracket (1) The interior is provided with four connecting frames (11), all of which are connected to the support (1) by means of a fixing structure (8). A table (12) is fixedly connected to the upper end of each connecting frame (11). The inner wall of the table (12) is provided with two auxiliary structures (7). The auxiliary structure (7) includes two sliding grooves (703). Both sliding grooves (703) are opened in the table (12). A slider (714) is slidably connected to the inner wall of the sliding groove (703). The two sliders (714) are fixedly connected on the side that is close to each other. The tabletop (12) has a cover plate (702), a safety net (701) is fixedly connected to the lower surface of the tabletop (12), a door panel (707) is installed on the inner wall of the safety net (701), a request button (708) is installed on the side of the safety net (701) near the door panel (707), a fixing plate (705) is fixedly connected to the upper surface of the tabletop (12), a connecting plate (706) is fixedly connected to the upper surface of the cover plate (702), and a hydraulic rod (704) is installed on the side of the fixing plate (705) near the connecting plate (706). The output end of the hydraulic rod (704) is fixedly connected to the connecting plate (706). The inner wall of the cover plate (702) is provided with an auxiliary groove (709) and a connecting groove (710). The auxiliary groove (709) is equipped with a second contact component (715), and the connecting groove (710) is equipped with a first contact component (712). Both ends of the cover plate (702) are fixedly connected with top blocks (711), and the two top blocks (711) correspond to the first contact component (712) and the second contact component (715) respectively.

2. The double-door interlocking device for truss safety protection and its control method according to claim 1, characterized in that: The top block (711) has a rectangular cross-section and is a rubber block.

3. The double-door interlocking device for truss safety protection and its control method according to claim 1, characterized in that: A limiting rod (713) is fixedly connected inside the slide groove (703), and the limiting rod (713) is slidably connected to the slider (714).

4. The double-door interlocking device for truss safety protection and its control method according to claim 3, characterized in that: The surface of the bracket (1) is provided with four fixing structures (8). The fixing structure (8) includes a connecting ring (82), which is fixedly connected to the bracket (1). The surface of the connecting frame (11) is fixedly connected with a fixing ring (81). A sleeve rod (87) is fixedly connected to the side of the fixing ring (81) near the connecting ring (82). A slide rod (84) is slidably connected to the inner wall of the sleeve rod (87). A connecting block (83) is fixedly connected to the end of the connecting ring (82) near the slide rod (84). The connecting block (83) is slidably connected to the slide rod (84). The inner wall of the connecting block (83) and the slide rod (84) is slidably connected with the same insert rod (86). The insert rod (86) is slidably connected to both ends of the slide plate. A spring (88) is provided inside the slide plate. The two ends of the spring (88) are fixedly connected to the slide plate and the sleeve plate, respectively.

5. The double-door interlocking device for truss safety protection and its control method according to claim 4, characterized in that: Positioning rods (85) are fixedly connected to both sides of the slide plate, and the positioning rods (85) are slidably connected to the sleeve plate.

6. The double-door interlocking device for truss safety protection and its control method according to claim 2, characterized in that: An auxiliary rod (89) is fixedly connected inside the sleeve rod (87). The auxiliary rod (89) is slidably connected to the slide rod (84). The spring (88) is sleeved on the arc surface of the auxiliary rod (89).

7. The double-door interlocking device for truss safety protection and its control method according to claim 2, characterized in that: The upper surface of the clamping device (10) is provided with a connecting structure (9), the connecting structure (9) includes a fixing frame (901), the fixing frame (901) is slidably connected to the slide bar (6), the surface of the slide bar (6) is slidably connected to the slide frame (902), both sides of the slide bar (6) are provided with slots (904), both sides of the fixing frame (901) are fixedly connected to limit blocks (905), the inner wall of the limit block (905) is rotatably connected to... There is a rotating shaft (910), and a connecting block (906) is fixedly connected to the arc surface of the rotating shaft (910). A clamping plate (908) is fixedly connected to the end of the connecting block (906) away from the rotating shaft (910). The clamping plate (908) is engaged with the clamping groove (904). Both arc surfaces of the rotating shaft (910) are fitted with coil springs (909). The two ends of the coil springs (909) are fixedly connected to the limiting block (905) and the connecting block (906) respectively.

8. The double-door interlocking device for truss safety protection and its control method according to claim 2, characterized in that: Several friction pads (903) are fixedly connected to both sides of the slide frame (902), and the friction pads (903) are evenly distributed on the slide frame (902).

9. A double-door interlocking device for truss safety protection and its control method according to claim 2, characterized in that: The connecting block (906) is fixedly connected to a protective pad (907) at one end near the card plate (908), and the protective pad (907) has a rectangular cross-section.

10. A double-door interlocking device for truss safety protection and its control method, comprising a double-door interlocking device for truss safety protection as described in any one of claims 1-9, characterized in that, Includes the following steps: S1. When personnel need to enter, press the request button (708). Then the truss judges the current task status. If the equipment task is not executed, the top plate is automatically closed and the hydraulic rod (704) is started to operate. The hydraulic rod (704) drives the connecting plate (706) to move. The connecting plate (706) drives the top plate to move. The top plate drives the slider (714) to slide on the inner wall of the slide groove (703). After moving to the appropriate position, the cover plate (702) drives the top block (711) to contact the second contact piece. The top plate position signal continues to be effective. Then the interlock of the door plate (707) is opened. Then personnel open the door and enter. If a task is being performed, the request button (708) flashes. After the task is completed, the cover plate (702) is closed. Then the door plate (707) interlock is unlocked. In an emergency, it can be stopped directly. When personnel exit, close the door panel (707), press the request button (708) to reset, then the hydraulic rod (704) drives the cover plate (702) to open, then the cover plate (702) drives the top block (711) to contact the first contact element, then the cover plate (702) position signal continues to be effective, and then the truss resumes its task. S2. When it is necessary to connect the bracket (1) and the connecting frame (11), pull the slide rod (84) to move it. The slide rod (84) slides on the inner wall of the sleeve rod (87). The slide rod (84) drives the spring (88) to stretch. Then, the slide rod (84) is aligned with the connecting block (83). Then, the connecting block (83) is inserted into the connecting block (83). Then, pull the insert rod (86) to move it. Align the insert rod (86) with the connecting block (83) and the sleeve rod (87). Then, insert the insert rod (86) into the connecting block (83) and the sleeve rod (87). The insert rod (86) fixes the slide rod (84) inside. When it is necessary to separate the bracket (1) and the connecting frame (11), pull out the insert rod (86). Then, the rebound force of the spring (88) drives the slide rod (84) and the connecting block (83) to separate quickly. S3. When it is necessary to install the clamping device (10), pull the clamping device (10) to move it, and then the clamping device (10) drives the fixed frame (901) to move. Then the fixed frame (901) is aligned with the slide bar (6), and then the fixed frame (901) is inserted into the slide bar (6). Then pull the connecting block (906) to move it. The connecting block (906) drives the rotating shaft (910) to move. The rotating shaft (910) rotates on the inner wall of the limit block (905). The connecting block (906) drives the coil spring (909) to retract. The connecting block (906) drives the card plate (908) to move. After moving to the appropriate position, release the connecting block (906). The coil spring (909) retracts and drives the card plate (908) to be inserted into the card slot (904) for fixation. Then pull the slide frame (902) to move it and put the slide frame (902) onto the card plate (908) for fixation.

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