Boom locking assembly and operating machinery

Abstract

The present invention relates to the technical field of operating machinery, and proposes a boom locking assembly and an operating machinery. The boom locking assembly includes a bracket, a connecting shaft, a flexible shaft, a rotating shaft assembly, a boom lock hook, and a locking hook assembly. The bracket is used to connect to the vehicle frame. The connecting shaft is connected to the bracket through a connecting piece. The fixed end of the flexible shaft is connected to the connecting shaft. One end of the rotating shaft assembly is rotatably connected to the connecting shaft, and the other end of the rotating shaft assembly is used to connect to the deflection device. The boom lock hook is used to connect to the boom. The locking hook assembly is connected to the rotating shaft assembly. The flexible shaft can drive the connecting shaft to drive the rotating shaft assembly to move up and down, so that the locking hook assembly locks the boom lock hook or releases the boom lock hook, and the rotating shaft assembly can rotate relative to the connecting shaft with the deflection device. Therefore, on the one hand, the flexible shaft is effectively protected and its service life is extended. On the other hand, the length of the flexible shaft that does not need to be deflected is relatively short, and the deflection interference between the flexible shaft and other components is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of operating machinery, and in particular to a boom locking assembly and an operating machinery. Background Art

[0002] An excavator loader is a special type of working machine that can dig and load soil, coal, mud, gravel, etc. When the excavation end of the excavator loader is not in operation, its boom is usually retracted. In order to improve safety, when the boom is in the retracted state, a locking device needs to be used to lock the boom. In the prior art, a flexible shaft is usually used to connect with a locking hook, and the flexible shaft is pulled up or the locking hook is released downward to lock or release the boom. In this boom locking structure, when the boom deflects with the deflection device, the flexible shaft will also deflect. On the one hand, it is easy to accelerate the aging and fracture of the flexible shaft, affecting its service life. On the other hand, it is necessary to reserve sufficient deflection length for the flexible shaft, which is prone to interference with other components during the deflection process. Summary of the Invention

[0003] The present invention provides a boom locking assembly and an operating machine, which are used to solve or improve the problems in the existing boom locking structure that the flexible shaft deflects with the deflection device, which easily accelerates the aging and fracture of the flexible shaft, affecting its service life, and the flexible shaft easily interferes with other components during the deflection process.

[0004] According to a first aspect of the present invention, there is provided a boom locking assembly comprising:

[0005] a bracket, the bracket being used to connect to the vehicle frame;

[0006] A connecting shaft connected to the bracket via a connecting piece;

[0007] a flexible shaft, the fixed end of which is connected to the connecting shaft;

[0008] a rotating shaft assembly, one end of which is rotatably connected to the connecting shaft, and the other end of which is connected to the deflection device;

[0009] A boom lock hook, the boom lock hook being used to connect with the boom;

[0010] A locking hook assembly is connected to the rotating shaft assembly.

[0011] The flexible shaft can drive the connecting shaft to drive the rotating shaft assembly to move up and down, so that the locking hook assembly can lock the boom hook or release the boom hook. The rotating shaft assembly can rotate relative to the connecting shaft along with the deflection device.

[0012] According to the present invention, a boom locking assembly includes a connecting member comprising at least two connecting rods. The connecting rods are spaced apart along the lifting direction of the connecting shaft. One end of the connecting rod movably passes through the bracket and is connected to the connecting shaft, and the other end of the connecting rod is capable of being restrained to the upper side of the bracket.

[0013] According to a boom locking assembly provided by the present invention, the rotating shaft assembly includes a rotating shaft body, a driving rod and a sleeve.

[0014] The rotating shaft body is rotatably connected to the connecting shaft. One end of the driving rod is connected to the rotating shaft body, and the other end of the driving rod is connected to the locking hook assembly. The sleeve is connected to the deflection device. The sleeve is mounted on the outer side of the connecting shaft and the rotating shaft body. The sleeve is provided with a lifting slot along the lifting direction of the connecting shaft. The driving rod passes through the lifting slot and is connected to the locking hook assembly.

[0015] According to a boom locking assembly provided by the present invention, the locking hook assembly includes a connecting rod and a locking hook.

[0016] One end of the connecting rod is provided with a sliding groove. The other end of the connecting rod is connected to the locking hook. The other end of the driving rod passes through the sliding groove from one side of the connecting rod and is restrained to the other side of the connecting rod. The driving rod can slide along the sliding groove to drive the locking hook to lock or release the boom hook.

[0017] According to the present invention, a boom locking assembly is provided, wherein the driving rod comprises a first rod and a second rod. The first and second rods are symmetrically connected to the rotating shaft body with the central axis of the rotating shaft body as the axis of symmetry. Furthermore, each of the first and second rods is connected to a locking hook assembly.

[0018] According to the present invention, a boom locking assembly includes two sets of locking hook assemblies. The lifting chute includes a first chute and a second chute. The first chute is provided corresponding to the first rod. The second chute is provided corresponding to the second rod. The first rod passes through the first chute and connects to one set of locking hook assemblies. The second rod passes through the second chute and connects to the other set of locking hook assemblies.

[0019] According to a boom locking assembly provided by the present invention, a lifting guide cavity is provided on the rotating shaft body along the lifting direction of the connecting shaft. The connecting shaft is slidably connected to the lifting guide cavity. A limit plate is provided at the end of the connecting shaft. A limit matching plate is provided at the end of the rotating shaft body. The limit plate is limited to the inner side of the limit matching plate.

[0020] According to a boom locking assembly provided by the present invention, the fixed end of the flexible shaft passes through the bracket and is connected to the connecting shaft, and the operating end of the flexible shaft is arranged in the cab of the operating machine.

[0021] According to a second aspect of the present invention, there is provided a working machine comprising the boom locking assembly as described above.

[0022] According to the present invention, a working machine further comprises a vehicle frame, a boom, and a deflection device, wherein the deflection device is connected to the vehicle frame, and the boom is connected to the deflection device.

[0023] The boom locking assembly provided by the present invention includes a bracket, a connecting shaft, a flexible shaft, a rotating shaft assembly, a boom lock hook, and a locking hook assembly. The bracket is connected to the frame of the working machine. The connecting shaft is connected to the bracket through a connector. The fixed end of the flexible shaft is connected to the connecting shaft. The flexible shaft can pull the connecting shaft upward or release it downward. The connecting shaft can be lifted and lowered relative to the bracket, but the connecting shaft cannot rotate. One end of the rotating shaft assembly is rotatably connected to the connecting shaft, and the other end of the rotating shaft is connected to the deflection device. When the deflection device is deflected, it can drive the rotating shaft assembly to rotate relative to the connecting shaft and the flexible shaft. When the flexible shaft drives the connecting shaft to be lifted and lowered, the rotating shaft assembly can be lifted and lowered along with the connecting shaft. The boom lock hook is connected to the boom. The locking hook assembly is connected to the rotating shaft assembly. When the rotating shaft assembly is lifted and lowered along with the connecting shaft, it can drive the locking hook assembly to lock or release the boom lock hook. When the locking hook assembly locks the boom hook, the boom can be locked in a retracted state; when the locking hook assembly releases the boom hook, the boom is in an unlocked state and can move freely.

[0024] During operation, when the movable arm needs to be locked, the connecting shaft is pulled upward through the soft shaft, the connecting shaft drives the rotating shaft assembly to lift upward, and the rotating shaft assembly drives the locking hook assembly to lock the movable arm hook.

[0025] When the boom needs to be unlocked, the connecting shaft is released downward through the soft shaft, and the rotating shaft assembly moves downward with the connecting shaft, and then the rotating shaft assembly drives the locking hook assembly to release the boom lock hook.

[0026] When the deflection device drives the boom and the working attachment to deflect, the rotating shaft assembly deflects relative to the connecting shaft and the flexible shaft along with the deflection device. In other words, during operation, the flexible shaft and the connecting shaft will not deflect along with the deflection device.

[0027] Thus, on the one hand, the flexible shaft is effectively protected and its service life is extended. On the other hand, the length of the flexible shaft that does not need to be deflected is relatively short, and deflection interference between the flexible shaft and other components is effectively avoided.

[0028] Furthermore, in the working machine provided by the present invention, since it includes the boom locking assembly as described above, it also has the advantages as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0030] Figure 1 This is a partial structural diagram of the boom locking assembly provided by the present invention. Figure 1 ;

[0031] Figure 2 It is a schematic cross-sectional view of the movable arm locking assembly provided by the present invention;

[0032] Figure 3 This is a partial structural diagram of the boom locking assembly provided by the present invention. Figure 2 ;

[0033] Figure 4 This is a partial structural diagram of the boom locking assembly provided by the present invention. Figure 3 ;

[0034] Figure 5 This is a schematic diagram of the partial structure of the operating machinery provided by the present invention Figure 1 , wherein the boom locking assembly is in a locked state;

[0035] Figure 6 This is a schematic diagram of the partial structure of the operating machinery provided by the present invention Figure 2 , wherein the boom locking assembly is in a released state;

[0036] Figure 7 This is a schematic diagram of the partial structure of the operating machinery provided by the present invention Figure 3 , wherein the deflection device is in a reset state;

[0037] Figure 8 This is a schematic diagram of the partial structure of the operating machinery provided by the present invention Figure 4 , wherein the deflection device is in a deflected state;

[0038] Reference numerals:

[0039] 100. Bracket; 210. Frame; 220. Boom; 230. Deflection device; 300. Connecting shaft; 310. Connecting rod; 320. Limiting plate; 400. Flexible shaft; 500. Rotating shaft assembly; 510. Rotating shaft body; 511. Lifting guide cavity; 512. Limiting matching plate; 520. Driving rod; 530. Sleeve; 531. Lifting slide; 600. Boom lock hook; 700. Locking lock hook assembly; 710. Connecting rod; 711. Sliding groove; 720. Locking lock hook. DETAILED DESCRIPTION

[0040] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0041] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0042] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; and direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of the present invention based on the specific circumstances.

[0043] In the embodiments of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, a first feature being "above," "above," and "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "below," "below," and "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, in the absence of mutual contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples to make the purpose, technical solutions and advantages of the embodiment of the present invention clearer. The technical solutions in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0045] The following combination Figures 1 to 8 The embodiments of the present invention provide a boom locking assembly and a working machine. It should be understood that the following description is merely an illustrative embodiment of the present invention and does not constitute any particular limitation to the present invention.

[0046] The embodiment of the first aspect of the present invention provides a boom locking assembly, such as Figures 1 to 8 As shown, the boom locking assembly includes:

[0047] Bracket 100, bracket 100 is used to connect with the frame 210;

[0048] A connecting shaft 300 connected to the bracket 100 via a connecting piece;

[0049] A flexible shaft 400, wherein a fixed end of the flexible shaft 400 is connected to the connecting shaft 300;

[0050] A rotating shaft assembly 500 , one end of which is rotatably connected to the connecting shaft 300 , and the other end of which is connected to the deflection device 230 ;

[0051] A boom lock hook 600, the boom lock hook 600 is used to connect with the boom 220;

[0052] The locking hook assembly 700 is connected to the rotating shaft assembly 500 .

[0053] The flexible shaft 400 can drive the connecting shaft 300 to drive the rotating shaft assembly 500 to move up and down, so that the locking hook assembly 700 locks the movable arm hook 600 or releases the movable arm hook 600. The rotating shaft assembly 500 can rotate relative to the connecting shaft 300 along with the deflection device 230.

[0054] The boom locking assembly provided by the present invention includes a bracket 100, a connecting shaft 300, a flexible shaft 400, a rotating shaft assembly 500, a boom locking hook 600, and a locking hook assembly 700. The bracket 100 is connected to the frame 210 of the work machine. The connecting shaft 300 is connected to the bracket 100 via a connector. The fixed end of the flexible shaft 400 is connected to the connecting shaft 300. The flexible shaft 400 can be pulled upward or released downward, allowing the connecting shaft 300 to move up and down relative to the bracket 100, but the connecting shaft 300 cannot rotate. One end of the rotating shaft assembly 500 is rotatably connected to the connecting shaft 300, and the other end of the rotating shaft is connected to the deflection device 230. When the deflection device 230 deflects, it can drive the rotating shaft assembly 500 to rotate relative to the connecting shaft 300 and the flexible shaft 400. When the flexible shaft 400 drives the connecting shaft 300 to move up and down, the rotating shaft assembly 500 can move up and down with the connecting shaft 300. The boom hook 600 is connected to the boom 220. The locking hook assembly 700 is connected to the rotating shaft assembly 500. As the rotating shaft assembly 500 moves up and down with the connecting shaft 300, it drives the locking hook assembly 700 to lock or release the boom hook 600. When the locking hook assembly 700 locks the boom hook 600, the boom 220 is locked in the retracted position. When the locking hook assembly 700 releases the boom hook 600, the boom 220 is unlocked and can move freely.

[0055] During the work process, Figure 6 As shown, when the movable arm 220 needs to be locked, the connecting shaft 300 is pulled upward through the soft shaft 400, the connecting shaft 300 drives the rotating shaft assembly 500 to be lifted upward, and the rotating shaft assembly 500 drives the locking hook assembly 700 to lock the movable arm hook 600.

[0056] like Figure 5 As shown, when the movable arm 220 needs to be unlocked, the connecting shaft 300 is released downward through the flexible shaft 400, and the rotating shaft assembly 500 moves downward with the connecting shaft 300, and then the rotating shaft assembly 500 drives the locking hook assembly 700 to release the movable arm locking hook 600.

[0057] Figure 7 The working state shown is the reset state of the deflection device 230; Figure 8As shown, when the deflection device 230 drives the boom 220 and the working attachment to deflect, the rotating shaft assembly 500 deflects relative to the connecting shaft 300 and the flexible shaft 400 along with the deflection device 230. In other words, during operation, the flexible shaft 400 and the connecting shaft 300 do not deflect along with the deflection device 230.

[0058] Thus, on the one hand, the flexible shaft 400 is effectively protected and its service life is extended. On the other hand, the length of the flexible shaft 400 that does not need to be deflected is relatively short, and deflection interference between the flexible shaft 400 and other components is effectively avoided.

[0059] In one embodiment of the present invention, the connecting member includes at least two connecting rods 310. Each connecting rod 310 is spaced apart along the lifting direction of the connecting shaft 300. One end of the connecting rod 310 movably passes through the bracket 100 and is connected to the connecting shaft 300, and the other end of the connecting rod 310 can be fixed to the upper side of the bracket 100.

[0060] Furthermore, in one embodiment of the present invention, the fixed end of the flexible shaft 400 passes through the bracket 100 and is connected to the connecting shaft 300. The operating end of the flexible shaft 400 is arranged in the cab of the working machine.

[0061] For example, Figures 1 to 3 As shown, the bracket 100 includes a first pillar and a second pillar, the first pillar is arranged along the vertical direction, and one end of the second pillar and the upper end of the first pillar form an L-shaped bracket 100. The lower end of the first pillar is fixedly connected to the frame 210. In this embodiment, there are two connecting rods 310. The connecting rod 310 includes a rod body and a limiting head, and the limiting head is connected to one end of the rod body. Two through holes are provided on the second pillar at intervals, and the rod body of each connecting rod 310 is movable through a through hole and connected to the connecting shaft 300, and the limiting head is placed on the upper side of the second pillar. As a result, the connecting shaft 300 cannot rotate, and the flexible shaft 400 can pull or release the connecting shaft 300 to move the connecting shaft 300 up or down.

[0062] In one embodiment of the present invention, the rotating shaft assembly 500 includes a rotating shaft body 510 , a driving rod 520 , and a sleeve 530 .

[0063] The rotating shaft body 510 is rotatably connected to the connecting shaft 300. One end of the driving rod 520 is connected to the rotating shaft body 510, and the other end of the driving rod 520 is connected to the locking hook assembly 700. The sleeve 530 is connected to the deflection device 230. The sleeve 530 is sleeved around the outer sides of the connecting shaft 300 and the rotating shaft body 510. The sleeve 530 is provided with a lifting slot 531 along the lifting direction of the connecting shaft 300. The driving rod 520 passes through the lifting slot 531 and is connected to the locking hook assembly 700.

[0064] For example, Figure 1 、 Figure 2 and Figure 4 As shown, the rotating shaft assembly 500 includes a rotating shaft body 510, a drive rod 520, and a sleeve 530. The lower end of the sleeve 530 is fixedly connected to the deflection device 230. For example, the sleeve 530 and the deflection device 230 are connected by threads, fasteners, or welding. The rotating shaft body 510 and the connecting shaft 300 are both disposed within the inner cavity of the sleeve 530. The sleeve 530 is provided with a lifting slot 531 along the lifting direction of the connecting shaft 300. The upper end of the rotating shaft body 510 is rotatably connected to the lower end of the connecting shaft 300. The drive rod 520 includes a rod body and a stopper. One end of the rod body of the drive rod 520 is connected to the outer wall of the rotating shaft body 510. The other end of the rod body of the drive rod 520 passes through the lifting slot 531 of the sleeve 530 and is connected to the stopper. The locking hook assembly 700 is connected to the drive rod 520.

[0065] During operation, when the soft shaft 400 pulls or releases the connecting shaft 300, the connecting shaft 300 can drive the rotating shaft body 510 to move up and down. During the process of the driving rod 520 moving up and down along the lifting slot 531, it can drive the locking hook assembly 700 to lock or release the boom lock hook 600.

[0066] When the deflection device 230 deflects, the sleeve 530 deflects along with the deflection device 230 , and at the same time, the driving rod 520 and the rotating shaft body 510 can be driven to deflect relative to the connecting shaft 300 and the flexible shaft 400 .

[0067] In one embodiment of the present invention, a lifting guide cavity 511 is provided on the rotating shaft body 510 along the lifting direction of the connecting shaft 300. The connecting shaft 300 is slidably connected to the lifting guide cavity 511. A limit plate 320 is provided at the end of the connecting shaft 300. A limit matching plate 512 is also provided at the end of the rotating shaft body 510. The limit plate 320 is limited to the inner side of the limit matching plate 512.

[0068] Specifically, if Figure 2As shown, the connecting shaft 300 and the rotating shaft body 510 are both hollow shaft structures. A lifting guide cavity 511 is provided inside the rotating shaft body 510. A limiting plate 320 is provided at the lower end of the connecting shaft 300, and the limiting plate 320 extends horizontally along the outer side of the connecting shaft 300. A limiting matching plate 512 is provided at the upper end of the rotating shaft body 510, and the limiting matching plate 512 extends horizontally along the inner side of the rotating shaft body 510. The limiting plate 320 is adapted to the limiting matching plate 512. The lower end of the connecting shaft 300 extends into the lifting guide cavity 511 of the rotating shaft body 510 and is connected to the limiting plate 320. The limiting matching plate 512 is limited to the upper side of the limiting plate 320 so that the connecting shaft 300 and the rotating connecting shaft 300 cannot be separated.

[0069] In one embodiment of the present invention, the locking hook assembly 700 includes a connecting rod 710 and a locking hook 720 .

[0070] One end of the connecting rod 710 defines a sliding groove 711, and the other end of the connecting rod 710 is connected to a locking hook 720. The other end of the driving rod 520 passes through the sliding groove 711 from one side of the connecting rod 710 and is restrained to the other side of the connecting rod 710. The driving rod 520 can slide along the sliding groove 711 to drive the locking hook 720 to lock or release the boom hook 600.

[0071] like Figure 1 and Figure 3 As shown, the locking hook assembly 700 includes a connecting rod 710 and a locking hook 720. More specifically, the lock hook includes a hook body and a connecting portion. The hook body is connected to the connecting portion. The connecting portion is rotatably connected to the deflection device 230 via a rotating shaft. The connecting portion can drive the hook body to flip relative to the rotating shaft. The connecting rod 710 includes a first section and a second section, and the first section and the second section are connected and arranged at an angle therebetween. A sliding groove 711 is provided on the first section. The rod body of the driving rod 520 is passed from the inner side of the connecting rod 710 to the outside of the connecting rod 710 and is connected to the limit head. The second section is connected to the connecting portion.

[0072] During operation, when the flexible shaft 400 pulls the connecting shaft 300 upward, the connecting shaft 300 drives the rotating shaft body 510 and the driving rod 520 to move upward. During the upward movement of the driving rod 520, the connecting part drives the hook body to flip downward to hook the boom lock hook 600.

[0073] When the flexible shaft 400 releases the connecting shaft 300 downward, the connecting shaft 300 drives the rotating shaft body 510 and the driving rod 520 to move downward. During the downward movement of the driving rod 520, the connecting portion can drive the hook body to flip upward to release the movable arm lock hook 600.

[0074] When the deflection device 230 deflects, the movable arm 220 , the locking hook assembly 700 and the rotating shaft assembly 500 can simultaneously deflect relative to the connecting shaft 300 and the flexible shaft 400 along with the deflection device 230 .

[0075] In one embodiment of the present invention, the drive rod 520 includes a first rod and a second rod. The first and second rods are symmetrically connected to the rotating shaft body 510 with the central axis of the rotating shaft body 510 as the axis of symmetry. A locking hook assembly 700 is connected to each of the first and second rods.

[0076] Furthermore, in one embodiment of the present invention, the boom locking assembly includes two sets of locking hook assemblies 700. The lifting chute 531 includes a first chute and a second chute. The first chute is configured to correspond to the first rod. The second chute is configured to correspond to the second rod. The first rod passes through the first chute and connects to one set of locking hook assemblies 700. The second rod passes through the second chute and connects to the other set of locking hook assemblies 700.

[0077] Specifically, if Figure 1 、 Figure 2 and Figure 4 As shown, a first rod and a second rod are symmetrically connected to the outer wall of the rotating shaft body 510. A first and a second sliding groove are correspondingly defined on the sleeve 530. The first rod passes through the first sliding groove and is connected to the corresponding sliding groove 711 on the connecting rod 710. The second rod passes through the second sliding groove and is connected to the corresponding sliding groove 711 on the connecting rod 710. The connecting portions of the two sets of locking hook assemblies 700 are connected to the deflection device 230 via the same rotating shaft. As a result, when the flexible shaft 400 pulls or releases the connecting shaft 300, the two hooks can be synchronously driven to flip via the rotating shaft body 510 and the first and second rods. The boom hook 600 can be a monolithic structure, where the hooks on the two sets of locking hooks 720 are hooked to the same boom hook 600. Alternatively, the boom hook 600 can be a multiple-piece structure, where the hooks on each set of locking hooks 720 are independently hooked to a different boom hook 600.

[0078] An embodiment of the second aspect of the present invention provides a working machine, comprising the boom locking assembly as described above.

[0079] Furthermore, in one embodiment of the present invention, the working machine further includes a frame 210, a boom 220, and a deflection device 230. The deflection device 230 is connected to the frame 210. The boom 220 is connected to the deflection device 230. The boom 220 is connected to a working attachment.

[0080] For example, the above-mentioned working machine is a backhoe loader.

[0081] It should be understood that the above embodiment is merely an illustrative embodiment of the present invention and does not constitute any limitation to the present invention. In other words, the above working machine includes but is not limited to an excavator loader.

[0082] Furthermore, in the working machine provided by the present invention, since it includes the boom locking assembly as described above, it also has the advantages as described above.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A boom locking assembly, characterized in that: include: a bracket, the bracket being used to connect to the vehicle frame; A connecting shaft connected to the bracket via a connecting piece; a flexible shaft, the fixed end of which is connected to the connecting shaft; a rotating shaft assembly, one end of which is rotatably connected to the connecting shaft, and the other end of which is connected to the deflection device; A boom lock hook, the boom lock hook being used to connect with the boom; A locking hook assembly, the locking hook assembly being connected to the rotating shaft assembly; Among them, the flexible shaft can drive the connecting shaft to drive the rotating shaft assembly to move up and down, so that the locking hook assembly locks the boom lock hook or releases the boom lock hook, and the rotating shaft assembly can rotate relative to the connecting shaft with the deflection device.

2. The boom locking assembly according to claim 1, characterized in that: The connecting member includes at least two connecting rods, each of which is arranged at intervals along the lifting direction of the connecting shaft. One end of the connecting rod can move through the bracket and be connected to the connecting shaft, and the other end of the connecting rod can be limited to the upper side of the bracket.

3. The boom locking assembly according to claim 2, characterized in that: The rotating shaft assembly includes a rotating shaft body, a driving rod and a sleeve. In which, the rotating shaft body is rotatably connected to the connecting shaft, one end of the driving rod is connected to the rotating shaft body, the other end of the driving rod is connected to the locking hook assembly, the sleeve is connected to the deflection device, the sleeve is sleeved to the outside of the connecting shaft and the rotating shaft body, and a lifting slot is provided on the sleeve along the lifting direction of the connecting shaft, and the driving rod passes through the lifting slot and is connected to the locking hook assembly.

4. The boom locking assembly according to claim 3, characterized in that: The locking hook assembly includes a connecting rod and a locking hook. Among them, a sliding groove is provided at one end of the connecting rod, and the other end of the connecting rod is connected to the locking hook. The other end of the driving rod passes through the sliding groove from one side of the connecting rod and is limited to the other side of the connecting rod. The driving rod can slide along the sliding groove to drive the locking hook to lock the boom lock hook or release the boom lock hook.

5. The boom locking assembly according to claim 4, characterized in that: The driving rod includes a first rod body and a second rod body, the first rod body and the second rod body are symmetrically connected to the rotating shaft body with the central axis of the rotating shaft body as the symmetry axis, and the first rod body and the second rod body are respectively connected to a locking hook assembly.

6. The boom locking assembly according to claim 5, characterized in that: The boom locking assembly includes two groups of locking hook assemblies, and the lifting slide includes a first slide and a second slide, the first slide is arranged corresponding to the first rod body, and the second slide is arranged corresponding to the second rod body, the first rod body passes through the first slide and is connected to one group of locking hook assemblies, and the second rod body passes through the second slide and is connected to another group of locking hook assemblies.

7. The boom locking assembly according to claim 3, wherein: A lifting guide cavity is provided on the rotating shaft body along the lifting direction of the connecting shaft, the connecting shaft is slidably connected to the lifting guide cavity, a limiting plate is provided at the end of the connecting shaft, and a limiting matching plate is provided at the end of the rotating shaft body, and the limiting plate is limited to the inner side of the limiting matching plate.

8. The boom locking assembly according to any one of claims 1 to 7, characterized in that: The fixed end of the flexible shaft passes through the bracket and is connected to the connecting shaft, and the operating end of the flexible shaft is arranged in the cab of the operating machine.

9. A working machine, characterized in that: The utility model comprises a boom locking assembly according to any one of claims 1 to 8.

10. The working machine according to claim 9, characterized in that: The working machine further includes a vehicle frame, a boom and a deflection device, wherein the deflection device is connected to the vehicle frame, and the boom is connected to the deflection device.

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