Cabin door line capable of preventing cabin door line moving tool from falling off
By installing anti-fall devices and positioning rods on the hatch door line, the problem of falling of the moving tooling on the hatch door line in the event of electrical component failure or operational error is solved, thus achieving safe and reliable tooling transfer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-31
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing technology, the door line moving fixture is prone to falling when electrical components fail or operation is mishandled, resulting in safety hazards.
By setting up a first fall protection device, a second fall protection device, and a positioning rod on the lifting platform, it is ensured that the lifting platform can only transfer the tooling when it reaches the corresponding line height. This includes the design of connecting rods and limit rods to prevent falls.
It effectively prevents the door line moving fixture from falling due to electrical component failure or operational errors, improves safety performance, and ensures the safe transfer of the fixture between the lifting platform and the line.
Smart Images
Figure CN121778422A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of hatch processing technology, and in particular to a hatch line that prevents the hatch line moving tool from falling off. Background Technology
[0002] The bus door components are arranged on the moving fixtures of the door line. The core process of processing is completed through different processing and drying procedures on the door line. The complete production line of the bus door will realize the process flow around the moving fixtures, covering component prefabrication, fixture processing, multiple rounds of drying and final inspection. The door line includes a double-layer conveyor line in the middle and lifting frames on both sides of the line. The lifting frames are equipped with lifting platforms, which are also equipped with lateral conveying functions, so that the moving fixtures of the door line can be transferred between the lifting platforms and the line. The lifting and lateral conveying of the lifting platforms, together with the lateral conveying of the line, realize the processing of the door components through different procedures.
[0003] Before the prefabrication of hatch components officially begins, the basic fabrication of the core hatch components must be completed to prepare for tooling transfer and processing. The general process for hatch components on the hatch line is as follows: the hatch components are loaded and fixed on the hatch line moving fixture on the first-level line. The hatch line moving fixture will sequentially move the hatch components to different processing stations on the first-level line, gradually improving the hatch structure and performance. After the processing on the first-level line is completed, the first-level line sends the hatch line moving fixture to the first lifting platform at one end. The first lifting platform receives the moving fixture and sends it to the second-level line, where it undergoes a drying process. Then, the second-level line sends the moving fixture to the second lifting platform at the other end. The second lifting platform moves the moving fixture down and returns it to the first-level line. After the dried hatch components pass quality inspection on the first-level line, they can be unloaded.
[0004] The aforementioned moving fixture drives the hatch assembly to complete a cycle sequentially on the first-floor line, the first lifting platform, the second-floor line, and the second lifting platform. The lifting platform needs to be raised and lowered to the corresponding line height to ensure smooth transfer of the moving fixture between the line and the platform. However, the current hatch line safety measures are electrically controlled. When electrical components fail or operators make mistakes, the moving fixture may fall. During the trial operation of the hatch line, there have been multiple instances of the hatch line falling due to signal interference. That is, when signal interference occurs, if the lifting platform has not yet connected to the corresponding line, the line cannot transport the line to the lifting platform, and the moving fixture is at risk of falling. Summary of the Invention
[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a door line that prevents the moving tool from falling off. By setting up a first anti-fall device, a second anti-fall device, and a positioning rod on the lifting platform, the moving tool can only be transferred between the line and the lifting platform when the lifting platform is raised to the corresponding line height, thus improving safety performance. It effectively solves the problem that the moving tool may fall off when electrical components fail or when the operator makes a mistake.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: A door line for preventing the door line moving tool from falling off includes a line body, which includes a first line body and a second line body. One end of the line body is connected to a first lifting frame and the other end is connected to a second lifting frame. The first lifting frame is provided with a first lifting platform and the second lifting frame is provided with a second lifting platform. A first anti-fall device is provided at one end of the first layer of the conveyor line near the first lifting frame. The first anti-fall device is composed of a first link, a second link, and a third link that are hinged together in sequence. The first link and the third link are supported by a support rod on the first layer of the conveyor line, so that the top of the third link protrudes from the conveyor plane of the first layer of the conveyor line in its natural state. When the first lifting platform descends, it can press down the first link, so that the top of the third link descends below the conveyor plane of the first layer of the conveyor line. The second anti-fall device is hinged to one end of the second lifting frame of the second-layer conveyor. The second anti-fall device is a limit rod. The top of the limit rod protrudes from the conveying plane of the second-layer conveyor in its natural state. When the second lifting platform rises, it can push the bottom of the limit rod upward, so that the top of the limit rod descends below the conveying plane of the second-layer conveyor.
[0007] As a further implementation, the first layer of the line is provided with a first support rod and a second support rod at one end near the first lifting frame. The first support rod supports the first connecting rod, and the second support rod supports the third connecting rod. One end of the first connecting rod is hinged to the second connecting rod, and the other end extends laterally to the first lifting frame.
[0008] As a further implementation, the bottom of the first lifting platform near the first anti-fall device is provided with a pressing rod. When the first lifting platform descends, it can drive the pressing rod to press down one end of the first connecting rod, so that the other end of the first connecting rod pushes the third connecting rod from an upward state to a horizontal state through the second connecting rod.
[0009] As a further implementation, the first lifting platform is provided with a positioning rod, which is hinged to the end of the first lifting platform. In its natural state, the end of the positioning rod away from the first layer of the conveyor belt protrudes from the conveying plane of the first lifting platform.
[0010] As a further implementation, a fixing rod is provided at the height of the first lifting frame near the second-floor assembly line. When the first lifting platform is raised, the fixing rod can press down on the end of the positioning rod away from the first-floor assembly line to unlock it.
[0011] As a further implementation, a limiting rod is provided at one end of the second-layer line near the second lifting frame. The limiting rod is hinged to the longitudinal beam on the second-layer line near the middle position. A limiting block is also provided on the outside of the longitudinal beam to limit the tilt angle of the limiting rod. The bottom end of the limiting rod extends to the second lifting frame.
[0012] As a further implementation, the second lifting platform is provided with an upper push rod at one end near the second-floor assembly line, which is used to push the limit rod from an inclined state to a horizontal state.
[0013] As a further implementation, the upper push rod is arranged horizontally, and the limiting rod is connected to an abutment block near its bottom end for contacting the upper push rod.
[0014] As a further implementation, in its natural state, the first link is positioned horizontally, the second link is positioned vertically, and the third link is positioned at an angle.
[0015] As a further implementation, the distance from the top of the limiting rod to the hinge position is less than the distance from the bottom to the hinge position.
[0016] The beneficial effects of the present invention are as follows: 1. By setting up a first anti-fall device, a second anti-fall device, and a positioning rod on the lifting platform, this invention ensures that the door line moving tool can only be transferred between the line body and the lifting platform when the lifting platform is raised to the corresponding line height, thereby improving safety performance; and effectively solving the problem that the moving tool will fall when electrical components fail or the operator makes a mistake.
[0017] 2. The first fall protection device consists of three connecting rods. The first and third connecting rods are supported by a support rod. When the first lifting platform presses down on the first connecting rod, the third connecting rod can be raised and lowered below the first-layer conveyor plane, thus unlocking the first fall protection device. The second fall protection device is a limit rod. The push rod of the second lifting platform can push the limit rod upward, causing the top of the limit rod to fall below the second-layer conveyor plane, thus unlocking the second fall protection device.
[0018] 3. The present invention adds a corresponding "lock" structure between the line body and the lifting platform. The lock can only be unlocked when the lifting platform moves to the corresponding line body position, ensuring the safe operation of the door line at all times. Attached Figure Description
[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.
[0020] Figure 1 This is a schematic diagram of the hatch line structure for preventing the hatch line moving tool from falling off in an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the first anti-fall device in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the position of the positioning rod and the door line moving fixture in an embodiment of the present invention; Figure 4 This is a schematic diagram of the state when the positioning rod is unlocked in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the second anti-fall device in an embodiment of the present invention; Figure 6 This is a schematic diagram of the state when the second anti-fall device is unlocked in an embodiment of the present invention; Figure 7 This is a schematic diagram of the restricted movement state from the first layer of the production line to the first lifting platform in an embodiment of the present invention; Figure 8 This is a schematic diagram of the release state of the first layer of the production line to the first lifting platform in an embodiment of the present invention; Figure 9 This is a schematic diagram of the restricted movement state of the second-layer conveyor to the second lifting platform in an embodiment of the present invention; Figure 10 This is a schematic diagram of the release state of the two-layer conveyor to the second lifting platform in an embodiment of the present invention.
[0021] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.
[0022] The components include: 1. First anti-fall device, 11. First connecting rod, 12. Second connecting rod, 13. Third connecting rod, 14. Rotating shaft, 2. Second anti-fall device, 21. Limiting rod, 22. Abutment block; 3. Line body, 31. First layer line body, 32. Second layer line body, 311. First support rod, 312. Second support rod; 321. Longitudinal beam, 322. Limiting block; 4. First lifting frame, 41. First lifting platform, 42. Downward pressing rod, 411. Positioning rod, 412. Rotating shaft, 43. Fixing rod; 5. Second lifting frame, 51. Second lifting platform, 52. Upward pushing rod, 6. Door line moving fixture. Detailed Implementation
[0023] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0024] Example 1 In a typical embodiment of the present invention, reference is made to Figures 1-10 As shown, a hatch line for preventing the door line moving tool from falling off includes a line body 3, which comprises a first-layer line body 31 and a second-layer line body 32. The second-layer line body 32 is arranged directly above the first-layer line body 31. The line body 3 has the function of laterally conveying the hatch line moving tool 6. One end of the line body 3 is connected to a first lifting frame 4, and the other end is connected to a second lifting frame 5. The two lifting frames are vertically arranged at both ends of the line body 3. The first lifting frame 4 is provided with a first lifting platform 41, and the second lifting frame 5 is provided with a second lifting platform 51. The lifting platforms can be raised and lowered on the corresponding lifting frames.
[0025] Understandably, the lifting frame is equipped with vertical lifting chains, which enable the lifting platform to move up and down on the lifting frame, thereby moving to the height of the first-floor line 31 or the second-floor line 32. The support frame of the lifting platform and the line are equipped with conveyor chains, which can be used to horizontally convey the door line moving tool 6.
[0026] like Figure 1 As shown, the first-layer line 31 is for processing, loading and unloading processes. Specifically, the hatch door moving fixture 6 is arranged on the conveyor chain of the first-layer line 31. The hatch door assembly is loaded and fixed on the hatch door moving fixture on the first-layer line 31. Under the action of the chain, the hatch door moving fixture 6 sequentially drives the hatch door assembly to different processing stations on the first-layer line 31 for processing. Then, the first lifting platform 41 descends to the height of the first-layer line 31. The conveyor chains of the first-layer line 31 and the first lifting platform 41 cooperate to transfer the hatch door moving fixture 6 to the first lifting platform 41.
[0027] The first lifting platform 41 lifts the hatch door line moving fixture 6 to the height of the second-floor line, and sends the hatch door line moving fixture 6 to the second-floor line 32 for drying. Then, the second lifting platform rises to the second-floor line, and the second-floor line 32 sends the hatch door line moving fixture 6 to the second lifting platform 51. The second lifting platform 51 lowers the moving fixture to the height of the first-floor line 31, and sends the hatch door line moving fixture 6 back to the first-floor line 31. After passing quality inspection on the first-floor line 31, the material can be unloaded.
[0028] When electrical components fail or operators make mistakes, the lifting platform may fail to reach the designated height before the conveyor begins transporting the door line moving fixture. This can prevent the door line moving fixture from being successfully transferred to the lifting platform, causing it to fall.
[0029] To solve the above problems, this embodiment provides a first anti-fall device 1 between the first-layer line 31 and the first lifting platform 41, and a second anti-fall device 2 between the second-layer line 32 and the second lifting platform 51. The first anti-fall device can prevent the hatch line moving fixture 6 on the first-layer line 31 from falling when it is transferred to the first lifting platform, and the second anti-fall device 2 can prevent the hatch line moving fixture on the second-layer line from falling when it is transferred to the second lifting platform 51.
[0030] like Figure 1 As shown, the first-layer conveyor 31 can move the door line moving fixture 6 to the left onto the first lifting platform 41, and the second-layer conveyor 32 can move the door line moving fixture 6 to the right onto the second lifting platform 51.
[0031] like Figure 1 and Figure 2 As shown, a first anti-fall device 1 is provided at one end of the first lifting frame 4 near the first layer of the line body 31. The first anti-fall device 1 is composed of a first connecting rod 11, a second connecting rod 12, and a third connecting rod 13 connected in sequence.
[0032] A first support rod 311 and a second support rod 312 are provided at one end of the first lifting frame of the first-layer line body 31. The support rods are arranged longitudinally on the frame structure of the first-layer line body 31. The first connecting rod and the third connecting rod are vertically supported by the support rods on the first-layer line body. The first support rod supports the middle position of the first connecting rod, and the second support rod 312 supports the end of the third connecting rod 13 away from the second connecting rod. Figure 2 As shown, the second support rod 312 is higher than the first support rod 311 and is located on the side of the first support rod 311 away from the first lifting platform.
[0033] The right end of the first link 11 is hinged to the second link 12, and the left end extends laterally to the first lifting frame 4. The two ends of the second link are hinged to the ends of the first link 11 and the third link 13 respectively, via a pivot 14. In its natural state... Figure 2 As shown, the first link 11 is horizontal, the second link 12 is vertical and close to the frame structure of the primary line, and the third link 13 is inclined. The top of the third link (the end away from the second link) protrudes from the conveyor plane of the first line. When the conveyor chain at the conveyor plane of the first line conveys the door line moving tool 6 to the left, it will be blocked by the top of the third link 13, thus playing a role in preventing it from falling. Only when the first lifting platform is lowered into place will the first anti-fall device be unlocked to ensure that the door line moving tool 6 moves smoothly to the first lifting platform.
[0034] Specifically, a pressing rod 42 is provided at the bottom of the first lifting platform 41 near the first anti-fall device 1. The pressing rod 42 is correspondingly set at the left end of the first connecting rod 11. When the first lifting platform 41 descends, it can drive the pressing rod 42 to press down the left end of the first connecting rod 11, so that the right end of the first connecting rod 11 pushes the third connecting rod 13 to switch states through the second connecting rod. The right end of the third connecting rod 13 changes from an upward state to a horizontal state.
[0035] The first anti-fall device 1 forms a process from a restricted state to a released state between the first layer of the line 31 and the first lifting platform, as shown in the example. Figure 7 and Figure 8 As shown, Figure 8 In this state, the third link 13 is located below the conveying plane of the first-layer line 31 and does not affect the transfer of the door line moving fixture 6. When the first lifting platform 41 drives the door line moving fixture 6 to rise, the lowering rod 42 leaves the first link, and under the action of gravity on each link, the right end of the third link 13 tilts up again, switching to the restricted state.
[0036] The first lifting platform 41 lifts the hatch door line moving fixture 6 to the second-floor line 32 and delivers the hatch door line moving fixture 6 to the second-floor line 32. In order to prevent the first lifting platform 41 from delivering the hatch door line moving fixture 6 before reaching the second-floor line 32, this embodiment is equipped with a positioning rod 411 to prevent it from falling.
[0037] like Figure 1 , Figure 3 and Figure 4 As shown, a positioning rod 411 is provided at the right end of the first lifting platform 41. The positioning rod 411 is hinged to the end of the first lifting platform through a pivot 412. In its natural state, the positioning rod 411 is inclined, with one end away from the first layer line 31 protruding from the conveying plane of the first lifting platform 41, that is, the right end is lower than the left end. When the door line moving fixture 6 is conveyed to the right, the left end of the positioning rod 411 can engage with the door line moving fixture 6 to prevent it from falling.
[0038] To ensure that the positioning rod 411 can only be unlocked when the first lifting platform 41 is raised to the height of the second-floor conveyor 32, the hatch line moving fixture 6 on the first lifting platform 41 is transferred to the second-floor conveyor 32. A fixing rod 43 is installed on the first lifting frame 4 near the height of the second-floor conveyor. The fixing rod 43 is arranged longitudinally. When the first lifting platform is raised, as the first lifting platform 41 rises, the fixing rod 43 can press down on the end of the positioning rod 411 away from the conveyor 3, thereby unlocking it. Figure 4 As shown, this is the state where the fixing rod 43 is about to press down the positioning rod. Figure 3The state shown is that when the door line moving fixture 6 is conveyed to the left by the first layer of the line 31, the door line moving fixture 6 can push the left end of the positioning rod 411 down. After the door line moving fixture 6 is completely transferred to the first lifting platform, the left end of the positioning rod 411 is raised again.
[0039] After the hatch door line moving fixture 6 is transferred to the second-floor line and undergoes the drying process, it needs to be returned to the first-floor line 31 via the second lifting platform for quality inspection. During this process, it is necessary to prevent the hatch door line moving fixture 6 from being transported before the second lifting platform 51 reaches the height of the second-floor line 32, in order to prevent it from falling.
[0040] To achieve this purpose, a second anti-fall device is hinged to one end of the second-layer conveyor 32 near the second lifting frame. The second anti-fall device 2 is a limiting rod 21. The top of the limiting rod 1 protrudes from the conveying plane of the second-layer conveyor 32 in its natural state. When the second lifting platform 51 rises, it can push the bottom of the limiting rod 21 upward, so that the top of the limiting rod 21 descends below the conveying plane of the second-layer conveyor 32.
[0041] Specifically, such as Figure 1 , Figure 5 and Figure 6 As shown, a limiting rod 21 is provided on the frame structure of the second-layer line 32 near the second lifting frame 5. The limiting rod 21 is hinged to the longitudinal beam 321 on the second-layer line near the middle position. A limiting block 322 is also provided on the outside of the longitudinal beam 321 to support the limiting rod 21 and limit the tilt angle of the limiting rod 21. The bottom end (i.e. the right end) of the limiting rod extends to the second lifting frame.
[0042] The distance from the top of the limiting rod 21 to the hinge position is less than the distance from the bottom to the hinge position, so that in its natural state, the top of the limiting rod is tilted upwards to a position above the conveyor plane of the second-layer line, such as... Figure 5 As shown.
[0043] The second lifting platform 51 has an upper push rod 52 near the second-layer conveyor 32, used to push the limit rod 21 from an inclined state to a horizontal state. The upper push rod 52 is horizontally positioned, and the limit rod 21 has an abutment block 22 connected near its bottom end for contact with the upper push rod 52. When the second lifting platform 51 raises the upper push rod 52 to the height of the second-layer conveyor 32, the upper push rod 52 pushes the limit rod 21 upwards, making it horizontal. The left end of the limit rod 21 falls below the conveyor plane of the second-layer conveyor, completing the unlocking process. Figure 6 As shown.
[0044] like Figure 9 and Figure 10 As shown, the second lifting platform 51 drives the upper push rod 52 to the height of the second-floor line 32, unlocking the second anti-fall device, thus realizing the switching of the door line moving tool 6 from the restricted state to the permitted state when it moves from the second-floor line to the second lifting platform.
[0045] It is understandable that a positioning rod structure with the same function as the positioning rod 411 can be set on the second lifting platform 51, and a fixing rod structure with the same function as the fixing rod 43 can be set on the second lifting frame 5 near the height of the first layer line 31, so that the second lifting platform 51 can only be unlocked and sent to the first layer line when it falls to the height of the first layer line.
[0046] This embodiment, through the setting of a first anti-fall device, a second anti-fall device, and a positioning rod on the lifting platform, ensures that the lifting platform can only transfer the door line moving tool 6 between the line and the lifting platform when it is raised to the corresponding line height, thereby improving safety performance.
[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A hatch line for preventing the falling off of a hatch line moving tool, characterized in that, It includes a line body, which includes a first-layer line body and a second-layer line body. One end of the line body is connected to the first lifting frame and the other end is connected to the second lifting frame. The first lifting frame is equipped with a first lifting platform and the second lifting frame is equipped with a second lifting platform. A first anti-fall device is provided at one end of the first layer of the conveyor line near the first lifting frame. The first anti-fall device is composed of a first link, a second link, and a third link that are hinged together in sequence. The first link and the third link are supported by a support rod on the first layer of the conveyor line, so that the top of the third link protrudes from the conveyor plane of the first layer of the conveyor line in its natural state. When the first lifting platform descends, it can press down the first link, so that the top of the third link descends below the conveyor plane of the first layer of the conveyor line. The second anti-fall device is hinged to one end of the second lifting frame of the second-layer conveyor. The second anti-fall device is a limit rod. The top of the limit rod protrudes from the conveying plane of the second-layer conveyor in its natural state. When the second lifting platform rises, it can push the bottom of the limit rod upward, so that the top of the limit rod descends below the conveying plane of the second-layer conveyor.
2. The hatch line for preventing the falling off of the hatch line moving tooling according to claim 1, characterized in that, The first layer of the line is provided with a first support rod and a second support rod at one end near the first lifting frame. The first support rod supports the first connecting rod, and the second support rod supports the third connecting rod. One end of the first connecting rod is hinged to the second connecting rod, and the other end extends laterally to the first lifting frame.
3. The hatch line for preventing the door line moving tool from falling off according to claim 2, characterized in that, The bottom of the first lifting platform near the first anti-fall device is provided with a pressure bar. When the first lifting platform descends, it can drive the pressure bar to press down one end of the first connecting rod, so that the other end of the first connecting rod pushes the third connecting rod from an upward state to a horizontal state through the second connecting rod.
4. The hatch line for preventing the door line moving tool from falling off according to claim 1, characterized in that, The first lifting platform is equipped with a positioning rod, which is hinged to the end of the first lifting platform. In its natural state, the end of the positioning rod away from the first layer of the conveyor belt protrudes from the conveying plane of the first lifting platform.
5. A hatch line for preventing the falling of a moving tooling device according to claim 4, characterized in that, The first lifting frame is equipped with a fixing rod near the height of the second-floor production line. When the first lifting platform is raised, the fixing rod can press down on the end of the positioning rod away from the first-floor production line to unlock it.
6. The hatch line for preventing the door line moving tool from falling off according to claim 1, characterized in that, The second-layer conveyor is provided with a limiting rod at one end near the second lifting frame. The limiting rod is hinged to the longitudinal beam on the second-layer conveyor near the middle position. A limiting block is also provided on the outside of the longitudinal beam to limit the tilt angle of the limiting rod. The bottom end of the limiting rod extends to the second lifting frame.
7. A hatch line for preventing the falling of a moving tooling device according to claim 6, characterized in that, The second lifting platform is equipped with an upper push rod at one end near the second-floor assembly line, which is used to push the limit rod from an inclined state to a horizontal state.
8. A hatch line for preventing the falling of a moving tooling device according to claim 7, characterized in that, The upper push rod is arranged horizontally, and the limiting rod is connected to an abutment block near its bottom end for contacting the upper push rod.
9. A hatch line for preventing the falling of a moving tooling device according to claim 3, characterized in that, In its natural state, the first link is set horizontally, the second link is set vertically, and the third link is set at an angle.
10. A hatch line for preventing the falling of a moving tooling device according to claim 6, characterized in that, The distance from the top of the limiting rod to the hinge position is less than the distance from the bottom to the hinge position.