Fixing lock pin device facilitating whole machine transportation
By designing a locking pin component switching slot and a semi-circular lock head connecting lock hole on the aerial work platform vehicle, the problem of low efficiency and safety hazards caused by improper locking during the transportation of aerial work platforms is solved. This enables simultaneous transportation of multiple vehicles and stable locking, improving transportation efficiency and safety.
Patent Information
- Application Number
- CN202520329095.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing locking pin devices on aerial work platforms cannot be effectively locked during transportation, resulting in low transportation efficiency and easy wear of gears due to violent shaking, which affects safety.
A fixed locking pin device was designed to facilitate the transportation of the whole machine. By switching the locking pin assembly between different slots, the working, non-working and transportation states of the whole machine can be switched. The semi-circular lock head and the interconnected lock hole design ensure the locking reliability and dynamic stability.
It enables flatbed trucks to transport multiple aerial work platforms simultaneously, improving transportation efficiency, ensuring safety and locking reliability, reducing wear risks, and making it suitable for transportation needs in complex environments.
Smart Images
Figure CN223705149U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of fixed locking pin device convenient for whole machine transportation, belong to the technical field of aerial work vehicle transportation protection. BACKGROUND
[0002] The fixed locking pin device of aerial work vehicle is a protection measure in the stop state of vehicle. When the aerial work vehicle is transported and suddenly uncontrollable factors occur, the rotation mechanism is impacted by violent shaking, which can cause wear to the gear inside the rotation mechanism, and further cause more serious safety accidents. Therefore, when the aerial work vehicle is in the stop working or transportation state, the whole machine rotation degree needs to be locked by the fixed locking pin.
[0003] The current fixed locking pin structure of aerial work platform is mostly single shaft hole locking, which inserts the shaft on the turntable into the hole of the chassis to lock the rotation degree of the whole machine. This locking method is simple and easy to implement, but it is not conducive to transportation. At present, the transportation tool of aerial work vehicle is mostly flat car, but the width of flat car is limited. If one flat car transports two aerial work vehicles, the upper part of the two aerial work vehicles needs to be rotated at a certain angle and parked staggered. However, the single shaft hole locking cannot lock the upper part of the aerial work vehicle after rotation, which cannot make the aerial work vehicles parked staggered, so it is not suitable for the transportation of aerial work vehicles. If each flat car only transports one aerial work vehicle, the transportation efficiency will be reduced. SUMMARY
[0004] The utility model provides a kind of fixed locking pin device convenient for whole machine transportation to solve the above technical problems, which adopts locking pin assembly to switch different slots. Based on realizing the locking of non-working state and non-locking of working state of the whole machine, the locking during transportation is realized, so that flat car can transport multiple aerial work vehicles at the same time.
[0005] Technical scheme: a kind of fixed locking pin device convenient for whole machine transportation, including mounting plate, locking pin assembly, lock hole assembly, the lock hole assembly is arranged on the chassis, the mounting plate, locking pin assembly is respectively installed on the vertical direction outer side wall of the upper part of whole machine, the mounting plate is equipped with whole machine working state slot, whole machine transportation slot, whole machine non-working state slot, connecting slot, the connecting slot is communicated whole machine working state slot, whole machine transportation slot, whole machine non-working state slot, the locking pin assembly is switched to any one slot in whole machine working state slot, whole machine transportation slot, whole machine non-working state slot by connecting slot, when the locking pin assembly is in any one slot in whole machine transportation slot, whole machine non-working state slot, it is locked with lock hole assembly.
[0006] The utility model discloses a whole machine working state groove, whole machine transportation groove, whole machine non -working state groove are set up to realize the switching of three states of whole machine, when whole machine needs work, locking pin assembly is in whole machine working state groove, locking pin assembly and lock hole assembly are in the separated state, that is, not locking, to avoid interfering with the aerial work truck operation, when whole machine does not work, locking pin assembly is in whole machine non -working state groove, locking pin assembly and lock hole assembly lock, when whole machine needs transportation, locking pin assembly is in whole machine transportation groove, locking pin assembly and lock hole assembly lock, only through the movement of locking pin assembly in the connecting groove realizes the switching of whole machine state, can realize the limitation of rotation degree of freedom when transportation requirement, whole machine non -working state simultaneously, and does not interfere with the whole machine work, simple structure is reliable, and can make that flat car can transport multiple aerial work trucks simultaneously, improves the transportation efficiency, also guarantees the security.
[0007] Option, because the complex groove shape is not conducive to processing and the movement of the locking pin, therefore, in order to facilitate the rapid movement of the locking pin, the whole machine working state groove, the whole machine transportation groove and the whole machine non-working state groove are arranged along the vertical direction, and the connecting groove is arranged along the horizontal direction.
[0008] Option, in order to enable the locking pin to be locked in the corresponding groove, the length of the whole machine transportation groove and the whole machine non-working state groove is equal and less than the length of the whole machine working state groove.
[0009] Option, in order to ensure that the lock head can be locked with the lock hole assembly and limit the rotation degree of freedom of the upper installation, the locking pin assembly comprises a locking pin body, the end of the locking pin body is provided with a lock head, the cross section of the lock head is semicircular, the lock hole assembly comprises a first lock hole and a second lock hole, the horizontal cross section shape of the first lock hole and the second lock hole is respectively the same as the cross section shape of the lock head, the first lock hole is matched and locked with the lock head of the locking pin body in the whole machine non-working state groove when the upper installation of the whole machine is not rotated, the second lock hole is matched and locked with the lock head of the locking pin body in the whole machine transportation groove when the upper installation of the whole machine is rotated, and the lock head is in abutment with the inner wall of the first lock hole or the second lock hole.
[0010] The semicircular arc edge can provide natural guidance when the locking pin is inserted, reducing the alignment accuracy requirement. After the rotation of the upper installation of the whole machine, even if there is a slight deviation, the arc of the semicircular shape can also assist the locking pin to slide into the target lock hole, reducing the operation difficulty. The contact surface of the semicircular shape can uniformly disperse the stress between the locking pin and the lock hole, avoiding local wear and prolonging the service life of the components.
[0011] Option, in order to improve the convenience and fault tolerance during processing, a transition groove is arranged between the first lock hole and the second lock hole, and the first lock hole and the second lock hole are communicated with each other through the transition groove.
[0012] The intercommunicating holes can be formed by one-time processing, reducing manufacturing steps and costs, avoiding precision errors caused by independent hole forming, and providing position compensation space for the insertion of the lock head after the rotation of the whole machine. Even if there are assembly errors or structural deformations, the lock head can be more easily aligned with the target hole through the intercommunicating path, improving the locking reliability. In addition, the intercommunicating hole can reduce the risk of debris or dirt accumulation, ensuring smooth locking action, especially for aerial work vehicles used outdoors or in complex environments, making this design more practical.
[0013] Preferably, to ensure the dynamic stability of the aerial work vehicle during transportation, the mounting plate is a U-shaped plate, the lock pin assembly is arranged inside the U-shaped plate, the connecting groove spans three adjacent faces of the U-shaped plate, the whole machine working state groove is arranged on the middle face of the three adjacent faces of the U-shaped plate, and the whole machine transportation groove and the whole machine non-working state groove are arranged on the two faces adjacent to the middle face.
[0014] During the transportation of the aerial work vehicle, the flatbed truck needs to withstand the vibration impact of complex road conditions. The locking state of the lock pin before and after rotation is supported by the two sides of the U-shaped plate, forming a closed force loop, which significantly improves the torsional and shear resistance, especially suitable for the working condition of frequent vibration during transportation. The symmetrical layout avoids unilateral stress concentration and prolongs the service life of the U-shaped plate and the lock pin. When the turntable rotates by 5°, the trajectory of the lock pin moving along the two sides of the U-shaped plate is more in line with the circular motion law, reducing the lateral friction between the lock pin and the connecting groove and reducing the risk of wear.
[0015] Preferably, to facilitate the installation of the mounting shell, a mounting shell is further provided, which is sleeved outside the lock pin body. The outer side wall of the whole machine upper installation in the vertical direction is provided with a circular arc portion inside. The outer circular surface of the mounting shell abuts against the circular arc portion. The mounting shell is provided with a reinforcing rib. The mounting shell is connected with the whole machine upper installation through the reinforcing rib.
[0016] Preferably, to facilitate the movement of the lock pin body by the operator, a handle and a screw rod are installed at one end of the lock pin body in the horizontal direction. One end of the screw rod is connected with the handle, and the other end is connected with the lock pin body. The screw rod slides in the whole machine working state groove, the whole machine transportation groove, the whole machine non-working state groove, and the connecting groove. The thickness of the handle is greater than the slot width of the slot with the largest slot width in the whole machine working state groove, the whole machine transportation groove, the whole machine non-working state groove, and the connecting groove.
[0017] Preferably, to prevent the aerial work vehicle from exceeding the specifications of the flatbed truck while being placed astray on the flatbed truck, the lock pin assembly rotates 0-5° around the center of rotation after the rotation of the whole machine upper installation.
[0018] Beneficial effects: the utility model discloses the locking of the transport of the different grooves of the locking pin assembly switching, realizes the locking of the transport, makes the flat car can transport multiple aerial working trucks simultaneously, the design of semicircular lock head and lock hole optimizes the alignment efficiency and durability, and the lock hole of interconnection is through the simplification processing and the enhancement fault tolerance ability, ensures the stability and reliability of locking operation when transporting, through the symmetrical stress design of U-shaped board, can effectively inhibit the deformation caused by vibration, ensures the fixing stability of aerial working truck, improves the motion trajectory adaptability and reduces the processing maintenance cost, very fits the core demand of space compact and dynamic stability in the transportation of aerial working truck. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below, and obviously, the drawings in the following description are only the embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative labor.
[0020] Figure 1 It is the state diagram of multiple aerial working trucks on the flat car through the fixed locking pin device of the scheme and is rotated and placed.
[0021] Figure 2 It is the exploded view of the fixed locking pin device of the utility model.
[0022] Figure 3 It is the schematic diagram of the whole machine working state groove, the whole machine transport groove and the connecting groove of the utility model.
[0023] Figure 4 It is the schematic diagram of the whole machine working state groove, the whole machine non-working state groove and the connecting groove of the utility model.
[0024] Figure 5 It is the schematic diagram of the lock hole assembly of the utility model.
[0025] Figure 6 It is the top view of the locking pin assembly of the utility model. DETAILED DESCRIPTION
[0026] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.
[0027] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0028] In the utility model, unless otherwise expressly specified and limited, the "upper" or "lower" of the first feature in the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "above", "above" and "above" of the first feature in the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature in the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0029] As Figure 1 A plurality of aerial work platforms are placed in the state of rotating and placing on the flat car through the fixed locking pin device,
[0030] As Figures 2-6 Indicated, a fixed locking pin device convenient for whole machine transportation, including mounting plate 1, lock pin assembly 2, lock hole assembly 3, the lock hole assembly 3 is arranged on the chassis, the mounting plate 1, lock pin assembly 2 is respectively installed on the outer side wall in the vertical direction of whole machine, the mounting plate 1 is equipped with whole machine working state groove 11, whole machine transportation groove 12, whole machine non-working state groove 13, connecting groove 14, the connecting groove 14 is communicated with whole machine working state groove 11, whole machine transportation groove 12, whole machine non-working state groove 13, the lock pin assembly 2 is switched to any one groove in whole machine working state groove 11, whole machine transportation groove 12, whole machine non-working state groove 13 through connecting groove 14, when the lock pin assembly 2 is in any one groove in whole machine transportation groove 12, whole machine non-working state groove 13, it is locked with lock hole assembly 3.
[0031] The whole machine working state groove 11, the whole machine transportation groove 12 and the whole machine non-working state groove 13 are arranged to realize the switching of the three states of the whole machine. When the whole machine needs to work, the locking pin assembly 2 is in the whole machine working state groove 11, at this time, the locking pin assembly 2 is in a separated state from the lock hole assembly 3, that is, it is not locked, so as to avoid interfering with the work of the overhead working vehicle. When the whole machine does not work, the locking pin assembly 2 is in the whole machine non-working state groove 13, at this time, the locking pin assembly 2 is locked with the lock hole assembly 3. When the whole machine needs to be transported, the locking pin assembly 2 is in the whole machine transportation groove 12, at this time, the locking pin assembly 2 is locked with the lock hole assembly 3. The switching of the state of the whole machine is realized only by the movement of the locking pin assembly 2 in the connecting groove 14, which can realize the transportation requirement and the limitation of the rotation freedom degree of the whole machine in the non-working state at the same time, and does not interfere with the work of the whole machine. The structure is simple and reliable, and the platform truck can transport multiple overhead working vehicles at the same time, which improves the transportation efficiency and ensures the safety.
[0032] Because the complex groove shape is not conducive to processing and the movement of the locking pin, in order to facilitate the rapid movement of the locking pin, the whole machine working state groove 11, the whole machine transportation groove 12 and the whole machine non-working state groove 13 are arranged along the vertical direction, and the connecting groove 14 is arranged along the horizontal direction.
[0033] In order to enable the locking pin to be locked in the corresponding groove, the length of the whole machine transportation groove 12 and the whole machine non-working state groove 13 is equal and smaller than the length of the whole machine working state groove 11.
[0034] In order to ensure that the lock head 211 can be locked with the lock hole assembly 3 and limit the rotation freedom degree of the upper installation, the locking pin assembly 2 comprises a locking pin body 21, the end of the locking pin body 21 is provided with a lock head 211, the cross section of the lock head 211 is semicircular, the lock hole assembly 3 comprises a first lock hole 31 and a second lock hole 32, the horizontal cross section shape of the first lock hole 31 and the second lock hole 32 is respectively the same as the cross section shape of the lock head 211, the first lock hole 31 cooperates with the lock head 211 of the locking pin body 21 in the whole machine non-working state groove 13 when the upper installation of the whole machine is not rotated to be locked, the second lock hole 32 cooperates with the lock head 211 of the locking pin body 21 in the whole machine transportation groove 12 when the upper installation of the whole machine is rotated to be locked, and the lock head 211 abuts against the inner wall of the first lock hole 31 or the second lock hole 32.
[0035] The arc edge of the semicircle can provide natural guidance when the locking pin is inserted, and reduce the requirement for positioning accuracy. After the upper installation of the whole machine is rotated, even if there is a slight deviation, the arc of the semicircle can also assist the locking pin to slide into the target lock hole, reducing the operation difficulty. The contact surface of the semicircle can uniformly disperse the stress between the locking pin and the lock hole, avoiding local wear and prolonging the service life of the components.
[0036] In order to improve the convenience and fault tolerance during processing, a transition groove 33 is arranged between the first and second lock holes 31 and 32, and the first and second lock holes 31 and 32 are communicated with each other through the transition groove 33.
[0037] The communicated lock holes can be formed by one-time processing, reducing manufacturing steps and costs, avoiding precision errors caused by independent hole opening, and providing position compensation space for the insertion of the lock head 211 of the whole machine after rotation. Even if there is assembly error or structural deformation, the lock head 211 can be more easily aligned with the target hole through the communicated path, improving the locking reliability. In addition, the communicated hole can reduce the risk of debris or dirt accumulation, ensuring smooth locking action, especially for aerial work vehicles used outdoors or in complex environments. This design is more practical.
[0038] In order to ensure the dynamic stability of the aerial work vehicle during transportation, the mounting plate 1 is a U-shaped plate, the lock pin assembly 2 is arranged on the inner side of the U-shaped plate, the connecting groove 14 spans three adjacent faces of the U-shaped plate, the whole machine working state groove 11 is arranged on the middle face of the three adjacent faces of the U-shaped plate, and the whole machine transportation groove 12 and the whole machine non-working state groove 13 are arranged on the two faces adjacent to the middle face, respectively.
[0039] During transportation of the aerial work vehicle, the flatbed truck needs to withstand the vibration impact of complex road conditions. The locking state of the lock pin before and after rotation is supported by the two sides of the U-shaped plate, forming a closed force loop, which significantly improves the torsional and shear resistance, especially suitable for the working condition of frequent vibration during transportation. The symmetrical layout avoids unilateral stress concentration and prolongs the service life of the U-shaped plate and the lock pin. When the turntable rotates by 5°, the trajectory of the lock pin moving along the two sides of the U-shaped plate is more in line with the circular motion law, reducing the lateral friction between the lock pin and the connecting groove 14 and reducing the risk of wear.
[0040] In order to facilitate the installation of the mounting shell 22, a mounting shell 22 is further provided on the outside of the lock pin body 21. The outer side wall of the whole machine upper installation in the vertical direction is provided with a circular arc part 4 inwardly. The outer circular surface of the mounting shell 22 abuts against the circular arc part 4. The mounting shell 22 is provided with a reinforcing rib. The mounting shell 22 is connected with the whole machine upper installation through the reinforcing rib.
[0041] In order to facilitate the movement of the lock pin body 21 by the operator, a handle 5 and a screw rod 6 are installed on one end of the lock pin body 21 in the horizontal direction. One end of the screw rod 6 is connected with the handle 5, and the other end is connected with the lock pin body 21. The screw rod 6 slides in the whole machine working state groove 11, the whole machine transportation groove 12, the whole machine non-working state groove 13 and the connecting groove 14. The thickness of the handle 5 is greater than the slot width of the slot with the largest slot width in the whole machine working state groove 11, the whole machine transportation groove 12, the whole machine non-working state groove 13 and the connecting groove 14.
[0042] In order to not exceed the specifications of the flat car while the aerial working vehicle on the flat car is placed in a wrong position, the locking pin assembly 2 rotates 0-5° around the rotation center after the whole machine is installed on the rotation.
[0043] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.
[0044] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A fixed pin device for facilitating the transport of a complete machine, characterized in that: The utility model provides a locking device for the vertical direction of the whole machine, including installation plate (1), lock pin assembly (2), lock hole assembly (3), lock hole assembly (3) sets up on the chassis, installation plate (1), lock pin assembly (2) installs on the outside wall of the vertical direction of whole machine respectively, be equipped with the whole machine working state groove (11), whole machine transportation groove (12), whole machine non -working state groove (13), connecting groove (14) on installation plate (1), connecting groove (14) is linked with whole machine working state groove (11), whole machine transportation groove (12), whole machine non -working state groove (13), lock pin assembly (2) is switched to any one groove in whole machine working state groove (11), whole machine transportation groove (12), whole machine non -working state groove (13) through connecting groove (14), when lock pin assembly (2) is in any one groove in whole machine transportation groove (12), whole machine non -working state groove (13), with lock hole assembly (3) locking.
2. The fixed locking pin device for ease of unit transportation of claim 1, wherein: The whole machine working state groove (11), whole machine transportation groove (12) and whole machine non-working state groove (13) are arranged along the vertical direction, and the connecting groove (14) is arranged along the horizontal direction.
3. The fixed-pintle apparatus of claim 2, wherein: The length of the whole machine transportation groove (12) and the whole machine non-working state groove (13) is equal and less than the length of the whole machine working state groove (11).
4. The fixed-pintle apparatus of claim 3, wherein: The lock pin assembly (2) includes a lock pin body (21), and the lock pin body (21) is provided with a lock head (211) at an end portion. The cross section of the lock head (211) is semicircular. The lock hole assembly (3) includes a first lock hole (31) and a second lock hole (32). The horizontal cross section shapes of the first lock hole (31) and the second lock hole (32) are respectively the same as the cross section shape of the lock head (211). The first lock hole (31) is matched with the lock head (211) of the lock pin body (21) in the whole machine non-working state groove (13) when the whole machine upper assembly is not rotated. The second lock hole (32) is matched with the lock head (211) of the lock pin body (21) in the whole machine transportation groove (12) when the whole machine upper assembly is rotated. The lock head (211) abuts against the inner wall of the first lock hole (31) or the inner wall of the second lock hole (32).
5. The fixed-pintle apparatus of claim 4, wherein: A transition groove (33) is arranged between the first lock hole (31) and the second lock hole (32). The first lock hole (31) and the second lock hole (32) are communicated with each other through the transition groove (33).
6. The fixed-pintle apparatus of claim 5, wherein: The installation plate (1) is a U-shaped plate. The lock pin assembly (2) is arranged on the inner side of the U-shaped plate. The connecting groove (14) spans three adjacent surfaces of the U-shaped plate. The whole machine working state groove (11) is arranged on the middle surface of the three adjacent surfaces of the U-shaped plate. The whole machine transportation groove (12) and the whole machine non-working state groove (13) are respectively arranged on two surfaces adjacent to the middle surface.
7. The fixed-pintle apparatus of claim 4, wherein: A mounting shell (22) is further arranged on the outer side of the lock pin body (21). The outer side wall of the whole machine upper assembly is provided with a circular arc portion (4) inwardly. The outer circular surface of the mounting shell (22) abuts against the circular arc portion (4). The mounting shell (22) is provided with a reinforcing rib. The mounting shell (22) is connected with the whole machine upper assembly through the reinforcing rib.
8. The fixed-pintle apparatus of claim 4, wherein: Handle (5) and screw rod (6) are installed on one end of the locking pin body (21) in horizontal direction, one end of the screw rod (6) is connected with the handle (5), the other end is connected with the locking pin body (21), the screw rod (6) slides in the whole machine working state groove (11), the whole machine transportation groove (12), the whole machine non-working state groove (13), the connecting groove (14), the thickness of the handle (5) is greater than the maximum groove width in the whole machine working state groove (11), the whole machine transportation groove (12), the whole machine non-working state groove (13), the connecting groove (14).
9. The fixed-pintle apparatus of claim 1, wherein: After the whole machine is rotated, the locking pin assembly (2) rotates 0-5° around the rotation center.