Novel locking mechanism

Abstract

The utility model discloses a novel locking mechanism, and relates to the technical field of garbage trucks. The utility model discloses a novel locking mechanism. A locking mechanism is arranged at the hinged position of a hook arm and an overturning frame; the locking mechanism comprises a hinge seat, a locking oil cylinder, a lock hook, an oil cylinder rotating arm and a rotating shaft; the rotating shaft is rotationally connected to the front part of the turnover frame and the axis of the rotating shaft is vertical to that of the hook arm; the hinge seat is fixed on the turnover frame; the bottom of a cylinder body of the locking oil cylinder is hinged to the hinge seat. The lock hook is fixed to the rotating shaft and located on the outer side of the hook arm. One end of the oil cylinder rotating arm is hinged with a driving rod of the locking oil cylinder, and the other end of the oil cylinder rotating arm is fixed on the rotating shaft; wherein a locking shaft is fixed on the outer side of the hook arm. According to the utility model, the lock hook is externally arranged and fixed on the roll-over stand, so that the manufacturing precision requirement and the manufacturing cost are reduced, and the installation is convenient; the locking oil cylinder is adopted to achieve the action of the lock hook, it is guaranteed that the lock hook is locked safely and reliably, and the unhooking phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage trucks, and particularly relates to a novel locking mechanism. Background Art

[0002] The knuckleboom garbage truck is a type of garbage collection vehicle. Its main function is to hoist and load the garbage bin filled with garbage, then transport the garbage bin to the garbage treatment station to complete garbage unloading; and then place the empty garbage bin at the garbage collection point.

[0003] On the frame of the knuckleboom garbage truck, a knuckleboom and a tipping frame are arranged in the front and rear; a hoisting arm is arranged on one side of the knuckleboom, and the bottom of the knuckleboom is driven and connected by the main body cylinder of the vehicle body. The main body cylinder of the vehicle body can drive the knuckleboom to turn upwards; the rear part of the knuckleboom is hinged to the front part of the tipping frame through a hinge shaft, and the rear part of the tipping frame is hinged to the frame; a locking device is arranged between the knuckleboom and the tipping frame.

[0004] At present, the knuckleboom garbage truck has two working modes: the bin loading mode and the unloading mode. In the bin loading mode, the locking device between the knuckleboom and the tipping frame is opened, and the knuckleboom rotates around the hinge shaft at the rear part of the knuckleboom. By the large-angle turning of the knuckleboom, the hoisting arm is extended to the rear of the vehicle. The hoisting arm is linked with the lifting ring on the garbage bin. After the link, by the reverse rotation of the knuckleboom, the garbage bin is hoisted onto the vehicle to complete the loading of the garbage bin; and then the process of unloading the garbage bin is completed by reverse operation.

[0005] Unloading mode: After selecting this mode, the locking device between the knuckleboom and the tipping frame is in the locked state, locking the knuckleboom and the rotating frame into an integral structure; the main body cylinder of the vehicle body extends to drive the knuckleboom to rotate, and the rotation center is the hinge point at the rear part of the rotating frame. At this time, the garbage bin, the knuckleboom and the rotating frame become an integral structure and rotate around the hinge point at the rear part of the rotating frame at the same time. When the main body cylinder of the vehicle body extends to the limit position, the garbage bin can be rotated by 45 degrees to complete the garbage dumping operation; the reverse operation can be performed to complete the return of the garbage bin.

[0006] Figures 1-3 It is a locking device on the knuckleboom garbage truck; this locking device is provided with a small and thin cylinder 210 inside the knuckleboom 110. A small locking hook 220 is arranged on the front side of the small and thin cylinder 210. The small locking hook 220 is fixedly connected with a rotating rod 230 arranged on the tipping frame 120; a spring 240 is fixedly connected to the end of the rotating rod 230, and the other end of the spring 240 is fixed on the tipping frame 120; wherein, under the elastic force of the spring 240, the hook part of the small locking hook 220 hooks tightly on the locking shaft 111 inside the knuckleboom 110. When this locking device needs to be unlocked, the small and thin cylinder 210 extends to push the small locking hook 220 away to complete the detachment from the locking shaft 111. When not in operation, the small locking hook 220 returns to the initial position under the action of the spring 240 to complete the locking function.

[0007] Regarding the above-mentioned locking device, the inventor believes that the above-mentioned locking device has a small structural assembly space, high requirements for manufacturing precision, and high production and manufacturing costs. At the same time, the lock hook returns automatically using a tension spring, and the tension force arm is small, which easily causes the hook to become disengaged, posing a safety hazard. Therefore, how to solve the above technical problems is a technical problem that needs to be solved in the current technical field of new locking mechanisms.

[0008] The information disclosed in this background art section is only intended to enhance the overall understanding of the present utility model and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0009] In view of the above technical problems, an embodiment of the present utility model provides a new locking mechanism to solve the problems raised in the above background art.

[0010] The present utility model provides the following technical solutions:

[0011] A new locking mechanism, in which a locking mechanism is provided at the hinge position between the hook arm and the flipping frame;

[0012] The locking mechanism includes a hinge seat, a locking oil cylinder, a lock hook, an oil cylinder rotating arm, and a rotating shaft;

[0013] The rotating shaft is rotatably connected to the front part of the flipping frame, and the axis of the rotating shaft is perpendicular to the axis of the hook arm;

[0014] The hinge seat is fixed on the flipping frame; the bottom of the cylinder body of the locking oil cylinder is hinged to the hinge seat;

[0015] The lock hook is fixed on the rotating shaft and the lock hook is located outside the hook arm;

[0016] One end of the oil cylinder rotating arm is hinged to the driving rod of the locking oil cylinder, and the other end of the oil cylinder rotating arm is fixed on the rotating shaft;

[0017] Wherein, a locking shaft is fixed outside the hook arm; when the driving rod of the locking oil cylinder contracts, it can pull back the oil cylinder rotating arm and drive the lock hook to rotate in the reverse direction to hook tightly on the locking shaft outside the hook arm.

[0018] Preferably, the hook arm and the flipping frame are laid flat on the vehicle frame; the rear part of the flipping frame is hinged to the vehicle frame, an articulated shaft is fixed to the rear part of the hook arm, and the front part of the flipping frame is hinged to the articulated shaft.

[0019] Preferably, there are two lock hooks, and the two lock hooks are respectively located on both sides of the hook arm and both lock hooks are fixed on the rotating shaft.

[0020] Preferably, the flipping frame is in a square frame structure and is welded by pipes.

[0021] Preferably, a lifting arm is fixed to the side of the hook arm away from the hinge shaft.

[0022] The novel locking mechanism provided by the embodiment of the present invention has the following beneficial effects: The present invention externally positions and fixes the locking hook on the tipping frame, reducing the manufacturing precision requirements and manufacturing costs and facilitating installation; the locking oil cylinder is used to realize the action of the locking hook, ensuring the safe and reliable locking of the locking hook and preventing the unhooking phenomenon. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic structural diagram of a locking device at Angle 1;

[0024] Figure 2 It is a schematic structural diagram of a locking device at Angle 2;

[0025] Figure 3 is Figure 2 a partial enlarged view of A in

[0026] Figure 4 It is a schematic structural diagram of the present invention at Angle 1;

[0027] Figure 5 It is a schematic structural diagram of the present invention at Angle 2;

[0028] Figure 6 It is a schematic sectional structure diagram of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention.

[0030] Refer to Figures 1-6 .

[0031] In view of the problems mentioned in the above background art, the embodiment of the present invention provides a novel locking mechanism to solve the above technical problems, and its technical solutions are as follows:

[0032] A novel locking mechanism is assembled on the frame of the garbage truck; a hook arm 110 and a tipping frame 120 are arranged on the frame;

[0033] The hook arm 110 and the tipping frame 120 are laid flat on the frame; the rear part of the tipping frame 120 is hinged to the frame, a hinge shaft 130 is fixed to the rear part of the hook arm 110, and the front part of the tipping frame 120 is hinged to the hinge shaft 130;

[0034] It further includes a locking mechanism; the locking mechanism includes a hinge seat 310, a locking oil cylinder 320, a locking hook 330, an oil cylinder rotating arm 340, and a rotating shaft 350;

[0035] The rotating shaft 350 is rotatably connected to the front position on the tipping frame 120 and the axis of the rotating shaft 350 is perpendicular to the axis of the hook arm 110;

[0036] The hinge seat 310 is fixed on the tipping frame 120; the bottom of the cylinder block of the locking oil cylinder 320 is hinged to the hinge seat 310;

[0037] The locking hook 330 is fixed on the rotating shaft 350 and the locking hook 330 is located outside the hook arm 110;

[0038] One end of the oil cylinder rotating arm 340 is hinged to the driving rod of the locking oil cylinder 320, and the other end of the oil cylinder rotating arm 340 is fixed on the rotating shaft 350;

[0039] Wherein, a locking shaft 111 is fixed outside the hook arm 110; when the driving rod of the locking oil cylinder 320 contracts, it can pull back the oil cylinder rotating arm 340 and drive the locking hook 330 to rotate in the reverse direction to hook tightly on the locking shaft 111 outside the hook arm 110; "reverse rotation" means that the locking hook 330 rotates away from the locking oil cylinder 320.

[0040] In this embodiment, there are two locking hooks 330, and the two locking hooks 330 are respectively located on both sides of the hook arm 110 and both locking hooks 330 are fixed on the rotating shaft 350; the double-locking-hook structure can ensure the safety and reliability of the locking hook.

[0041] In this embodiment, the tipping frame 120 is in a square frame structure and the tipping frame 120 is welded by pipes; a lifting arm 120 is fixed on one side of the hook arm 110 far from the hinge shaft 130.

[0042] The working method of a novel locking mechanism provided by the embodiment of the present utility model is as follows:

[0043] 1. Loading mode: the driving rod of the locking oil cylinder 320 extends to push the locking hook 330 to rotate, the locking hook 330 is disengaged from the locking shaft 111 outside the hook arm 110, and the locking mechanism is opened; the main cylinder of the vehicle body drives the hook arm 330 to rotate around the hinge shaft 130 at the rear of the hook arm 330, and through the large-angle tipping of the hook arm 330, the lifting arm 120 is extended to the rear of the vehicle, the lifting arm 120 is linked with the lifting ring on the garbage bin, and after the linking, through the reverse rotation of the hook arm 330, the garbage bin is lifted onto the vehicle to complete the loading of the garbage bin;

[0044] 2. Discharging mode: The driving rod of the locking oil cylinder 320 retracts to pull back the locking hook 330, and the locking hook 330 rotates reversely to hook tightly on the locking shaft 111 outside the hook arm 110. The locking mechanism locks, and the hook arm 330 and the rotating frame 120 are locked into an integrated structure; the main body cylinder of the vehicle body extends to drive the hook arm 330 to rotate, and the rotation center is the hinge point at the rear of the rotating frame 120. At this time, the garbage bin, the hook arm 330 and the rotating frame 120 form an integrated structure and rotate around the hinge point at the rear of the rotating frame 120 at the same time. When the main body cylinder of the vehicle body extends to the limit position, the garbage bin can be rotated by 45 degrees to complete the garbage dumping operation; performing the opposite operation can complete the return of the garbage bin.

[0045] A new type of locking mechanism provided by the embodiment of the present invention has the following beneficial effects: The present invention externally positions and fixes the locking hook on the turning frame, reducing the manufacturing precision requirements and manufacturing costs and facilitating installation; the locking oil cylinder is used to realize the action of the locking hook, ensuring the safety and reliability of the locking hook and preventing the phenomenon of unhooking.

[0046] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units. They may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0047] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "setting", "connection", "fixation", "swivel connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly limited, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solution of the present invention and the concept of the present invention, and all such changes or substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. A new locking mechanism, characterized in that: A locking mechanism is provided at the hinged position of the hook arm and the flip frame; The locking mechanism comprises an articulated seat, a locking oil cylinder, a locking hook, an oil cylinder rotating arm and a rotating shaft; The rotating shaft is rotatably connected to the front of the flip frame and the axis of the rotating shaft is perpendicular to the axis of the hook arm; The hinged seat is fixed on the turning frame; the bottom of the cylinder body of the locking oil cylinder is hinged on the hinged seat; The locking hook is fixed on the rotating shaft and is located outside the hook arm; One end of the cylinder rotating arm is hinged to the driving rod of the locking cylinder, and the other end of the cylinder rotating arm is fixed to the rotating shaft; Among them, a locking shaft is fixed on the outside of the hook arm; the driving rod of the locking cylinder can be retracted to pull back the cylinder rotating arm and drive the locking hook to rotate in the opposite direction and hook on the locking shaft on the outside of the hook arm.

2. The novel locking mechanism according to claim 1 is characterized in that: The hook arm and the turning frame are arranged flat on the vehicle frame; the rear part of the turning frame is hinged on the vehicle frame, the rear part of the hook arm is fixed with a hinge shaft, and the front part of the turning frame is hinged on the hinge shaft.

3. The novel locking mechanism according to claim 1 is characterized in that: The locking hooks include two, which are respectively located at two sides of the hook arm and are both fixed on the rotating shaft.

4. The novel locking mechanism according to claim 1 is characterized in that: The turning frame is a square frame structure, and the turning frame is welded from pipes.

5. The novel locking mechanism according to claim 1 is characterized in that: A suspension arm is fixed on one side of the hook arm away from the hinge axis.

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