A lifting locking and unlocking device

Abstract

The present invention relates to a lifting locking and unlocking device, which belongs to the field of engineering machinery, includes an equipment frame, and is characterized in that it also includes a mounting frame, which is connected to the equipment frame through an upper swing arm and a lower swing arm, wherein the upper swing arm and the lower swing arm are hinged to the equipment frame and the mounting frame respectively, and a hanging bracket connecting rod is provided on the mounting frame; a telescopic mechanism, one end of which is hinged to the equipment frame, and the other end is connected to the lower swing arm; a driving gear, which is fixedly connected to one end of the lower swing arm hinged to the mounting frame; a driven gear with a locking hook, which is connected to the mounting frame in a manner that can rotate around its axis, and the driven gear is meshed with the driving gear; the present invention can realize that the telescopic mechanism drives the mounting frame to rise and fall while completing the locking and unlocking of the load, which is convenient for the rapid transportation of load tools with construction vehicles.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery and vehicle-mounted accessories, and in particular to a lifting locking and unlocking device. Background Art

[0002] Currently, road construction vehicles and construction machinery are becoming more and more multifunctional, and it is increasingly common for them to carry a variety of tools and work units. Generally, a construction team will follow an ordinary freight vehicle, transporting tools and small engineering equipment and other loads to the construction site, and use lifting tools and workers to lift and move them. The operation process is frequent, and the excessive involvement of intermediate workers poses a safety hazard and may even cause casualties and damage to other items. In the existing technology, devices that are simply used for lifting loads are relatively common, but how to achieve the linkage to achieve the rapid transfer and release of loads with construction vehicles, and maintain stability and safety during the transfer process, is a problem that needs to be solved urgently. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the shortcomings of the existing technology and provide a lifting locking and unlocking device that can lock or unlock the bracket while the driving mechanism drives it to lift, thereby facilitating the rapid transportation of load tools with construction vehicles and reducing manual participation.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: a lifting locking and unlocking device, including an equipment rack, characterized in that it also includes

[0005] The mounting frame is connected to the equipment rack through an upper swing arm and a lower swing arm, wherein the upper swing arm and the lower swing arm are hinged to the equipment rack and the mounting frame respectively, and a bracket connecting rod is provided on the mounting frame;

[0006] A telescopic mechanism, one end of which is hinged to the equipment frame and the other end is connected to the lower swing arm, and is used to drive the lower swing arm to rotate around the hinge point between it and the equipment frame;

[0007] A driving gear is fixedly connected to one end of the lower swing arm hinged to the mounting frame;

[0008] A driven gear with a locking hook is connected to the mounting frame in a manner that allows it to rotate around its axis, and the driven gear is engaged with the driving gear; when the telescopic mechanism drives the lower swing arm to rotate and drives the mounting frame to rise and fall, the locking hook on the driven gear rotates accordingly to lock or unlock the target object.

[0009] Furthermore, the lifting locking and unlocking device also includes a hanger that cooperates with the hanger connecting rod, and the hanger is connected to a hook for connecting to the hanger connecting rod by hooking. A fixing rod that cooperates with the lock hook is provided on the hanger near the driven gear.

[0010] Furthermore, the telescopic mechanism adopts a telescopic oil cylinder, a telescopic air cylinder or an electric push cylinder.

[0011] Furthermore, a group of tapered sleeves are provided on the bracket connecting rod near both ends thereof, and the axial cross-section of the tapered sleeve is a trapezoid with a larger outer side and a smaller inner side.

[0012] Furthermore, an elastic pad for contacting the hanging bracket is provided on one side of the mounting bracket close to the hanging bracket.

[0013] Furthermore, the driving gear is mounted on the first hinge shaft of the lower swing arm and the mounting frame through a gear seat, and the gear seat is fixedly connected to the driving gear and the lower swing arm respectively.

[0014] Furthermore, the driving gear has a notch along its radial direction and is connected to the inner hole of the driving gear for adjusting the position of the driving gear on the gear seat. The driving gear is also equipped with a fastener that matches the notch and is used to fasten the driving gear to the gear seat.

[0015] Furthermore, the mounting bracket and the hanging bracket are provided with a first locking member for locking the two.

[0016] Furthermore, a second locking member for locking the equipment frame and the lower swing arm is provided.

[0017] The beneficial effects of the present invention are: through the arrangement of the telescopic mechanism, the upper swing arm, the lower swing arm, the mounting frame and the driving gear, the driven gear and the connection relationship between the hanger and the mounting frame, the telescopic mechanism can drive the mounting frame to rise and fall while completing the locking and unlocking of the load, thereby facilitating the rapid transportation of load tools accompanying the construction vehicle and reducing manual participation; the overall structure of the equipment is simple, the stability is good, and the requirements for equipment processing accuracy are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention;

[0019] Figure 2 It is a partial side view structural diagram of an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of a partial three-dimensional structure of an embodiment of the present invention;

[0021] Figure 4 1 is a schematic diagram of the three-dimensional structure of a lower swing arm according to an embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of a mounting frame according to an embodiment of the present invention;

[0023] Figure 6This is a partially enlarged structural diagram of a driving gear according to an embodiment of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the present invention in use;

[0025] In the figure: 1. Equipment frame, 2. Upper swing arm, 3. Lower swing arm, 4. Mounting frame, 41. Hanger connecting rod, 411. Tapered sleeve, 42. First hinge shaft, 43. Connecting shaft, 44. Elastic pad, 5. Telescopic mechanism, 51. Cylinder hinge seat, 6. Drive gear, 60. Gear seat, 61. Notch, 62. Fastener, 7. Driven gear, 71. Lock hook, 8. Hanger, 81. Fixing rod, 82. Hook, 91. First locking member, 92. Second locking member, 10. Load. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below with reference to the accompanying drawings. The embodiments given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1-Figure 7 As shown, the lifting locking and unlocking device of this embodiment includes an equipment rack 1 and

[0028] Mounting frame 4, the mounting frame 4 is connected to the equipment frame 1 through an upper swing arm 2 and a lower swing arm 3, wherein the upper swing arm 2 and the lower swing arm 3 are parallel to each other, the two ends of the upper swing arm 2 are hinged to the equipment frame 1 and the mounting frame 4 respectively, one end of the lower swing arm 3 is hinged to the mounting frame 4 through a first hinge shaft 41, the main body of the lower swing arm 3 is hinged to the equipment frame 1, and a bracket connecting rod 41 is provided on the mounting frame 4;

[0029] The telescopic mechanism 5, specifically a telescopic oil cylinder, is used to drive the lower swing arm 3 to rotate about its hinge point with the equipment frame 1. One end of the telescopic oil cylinder is hinged to the equipment frame 1, and the other end is hinged to the end of the lower swing arm 3 through an oil cylinder hinge seat 51. Specifically, the oil cylinder hinge seat 51 is installed on the connecting arm connecting the two symmetrically arranged lower swing arms. At this time, the hinge point of the lower swing arm 3 and the equipment frame 1 is located between the hinge points of the lower swing arm 3, the telescopic oil cylinder, and the mounting frame 4.

[0030] The driving gear 6 is sleeved on the first hinge shaft 42 through the gear seat 60. The gear seat 60 is fixedly connected to the driving gear 6 and the lower swing arm 3 respectively. The first hinge shaft 42 passes through the inner hole of the gear seat 60 and the two can rotate relative to each other.

[0031] The driven gear 7 with a locking hook 71 is connected to the mounting bracket 4 in a manner that can rotate around its axis. Specifically, the driven gear 7 is mounted on a connecting shaft 43 parallel to the first hinge shaft 42 and can rotate relative to it. The driven gear 7 is engaged with the driving gear 6; when the telescopic mechanism 5 drives the lower swing arm 3 to rotate and drives the mounting bracket 4 to rise and fall, the locking hook 71 on the driven gear 7 rotates accordingly to hook, lock or unlock the target object.

[0032] The working principle of the present invention will be described below by taking the transport of a small road roller as an example, that is, the small road roller serves as the load 10 .

[0033] Before use, the equipment frame 1 remains stationary relative to the main machine. A separate hanger 8 is provided for use in conjunction with the aforementioned lifting locking and unlocking device to support a load 10. Hanger 8 is connected to a hook 82 for hooking with hanger connecting rod 41. A fixing rod 81 is provided on hanger 8 near driven gear 7 to engage with locking hook 71. Hanger 8 is separated from mounting frame 4, with mounting frame 4 connected to equipment frame 1 and hanger 8 fixedly connected to the compact roller.

[0034] When the load 10 needs to be lifted and transferred, the telescopic rod of the oil cylinder is retracted to drive the upper swing arm 2 and the lower swing arm 3 to move along the hinge point with the equipment frame 1. Figure 7 Rotate clockwise as shown to lower the mounting frame 4 to the vicinity of the small roller; at this time, quickly hang the bracket 8 fixed on the small roller on the bracket connecting rod 41, and then drive the upper swing arm 2 and the lower swing arm 3 around the hinge point with the equipment frame 1 along the Figure 7 At the same time, the driving gear 6 rotates counterclockwise relative to the first hinge shaft 42 on the mounting frame 4 under the drive of the lower swing arm 3, and the driven gear 7 engaged therewith rotates clockwise accordingly, and the locking hook 71 on the driven gear 7 hooks the fixing rod 81 on the hanging frame 8, completing the locking of the locking hook 71 and the fixing rod 81, that is, the small road roller is lifted and locked at the same time. Figure 1 When the small roller needs to be released, the telescopic rod of the oil cylinder is retracted to drive the upper swing arm 2 and the lower swing arm 3 to rotate around the hinge point with the equipment frame 1. Figure 7 As shown, the mounting frame 4 is rotated clockwise to lower the mounting frame 4 with the hanging frame and the small roller. At the same time, the driving gear 6 is driven by the lower swing arm 3 to rotate clockwise relative to the first hinge shaft 42 on the mounting frame 4, and the driven gear 7 engaged therewith rotates counterclockwise, releasing the lock hook 71 from the fixing rod 81. Figure 7 As shown, it is convenient to release the hanging bracket 8 carrying the small road roller from the mounting frame.

[0035] In addition, a set of tapered sleeves 411 are provided on the bracket connecting rod 41 of this embodiment, near both ends thereof. Figure 5 As shown, the axial cross-section of the tapered sleeve 411 is a trapezoid with a larger outer portion and a smaller inner portion. The function is to utilize the slope of the tapered sleeve 411 to facilitate rapid centering of the hanger 8 on the fixing rod 81 when the load is transferred.

[0036] In addition, an elastic pad 44 is provided on the side of the mounting frame 4 close to the hanging frame 8 in this embodiment for contacting the hanging frame 8. Figure 2 As shown, the elastic pad 44 cooperates with the locking hook 71 to firmly lock the locking hook 71 and the fixing rod 81.

[0037] In addition, the driving gear 6 of this embodiment has a notch 61 formed along its radial direction and connected to the inner hole of the driving gear 6. Figure 6 As shown, the driving gear 6 is also equipped with a fastener 62 that cooperates with the notch 61 and is used to fasten the driving gear 6 to the gear base 60. Specifically, a fastening bolt can be used. The installation direction of the fastener 62 on the driving gear 6 is perpendicular to the direction of the notch 61. When installing the driving gear 6 and the driven gear 7, the driven gear 7 and the driving gear 6 with the notch 61 are first rotated to adjust until the locking hook 71 can be hooked with the fixing rod 81. Then, the notch is locked with the fastener 62 so that the driving gear 6 is tightly clamped to the gear base 60 to complete the fixation.

[0038] In other embodiments of the present invention, a first lock 91 is provided on the mounting frame 4 and the hanging bracket 8 for locking the two to prevent damage to the structure caused by vibration during equipment transfer, and a second lock 92 is provided on the equipment frame 1 and the lower swing arm 3 for locking the two for mechanical locking to further ensure the reliability of the machine.

[0039] The overall equipment locks and unlocks the load through lifting actions, has low requirements for processing precision, and has a simple structure, achieving safe and reliable locking components and safe and fast release of work tools, achieving the purpose of safety, reliability and speed.

Claims

1. A lifting locking and unlocking device, comprising an equipment rack (1), characterized in that: Also includes A mounting frame (4), the mounting frame (4) is connected to the equipment frame (1) via an upper swing arm (2) and a lower swing arm (3), wherein the upper swing arm (2) and the lower swing arm (3) are hinged to the equipment frame (1) and the mounting frame (4), respectively, and a hanger connecting rod (41) is provided on the mounting frame (4); A telescopic mechanism (5), one end of which is hinged to the equipment frame (1) and the other end of which is connected to the lower swing arm (3), and is used to drive the lower swing arm (3) to rotate around the hinge point between the lower swing arm and the equipment frame (1); A driving gear (6) is fixedly connected to one end of the lower swing arm (3) hinged to the mounting frame (4); A driven gear (7) with a locking hook (71) is connected to the mounting frame (4) in a manner that allows it to rotate about its axis, and the driven gear (7) is meshed with the driving gear (6); when the telescopic mechanism (5) drives the lower swing arm (3) to rotate and drives the mounting frame (4) to rise and fall, the locking hook (71) on the driven gear (7) rotates accordingly to lock or unlock the target object.

2. The lifting locking and unlocking device according to claim 1, characterized in that: The invention also includes a hanger (8) matched with the hanger connecting rod (41), a hook (82) connected to the hanger connecting rod (41) by hooking, and a fixing rod (81) matched with the locking hook (71) is provided on the hanger (8) near the driven gear (7).

3. The lifting locking and unlocking device according to claim 1, characterized in that: The telescopic mechanism (5) adopts a telescopic oil cylinder, a telescopic air cylinder or an electric push cylinder.

4. The lifting locking and unlocking device according to claim 1, characterized in that: A group of conical sleeves (411) are provided on the hanger connecting rod (41) at opposite ends thereof.

5. The lifting locking and unlocking device according to claim 2, characterized in that: An elastic pad (44) for contacting the hanging bracket (8) is provided on one side of the mounting bracket (4) close to the hanging bracket (8).

6. The lifting locking and unlocking device according to claim 1, characterized in that: The driving gear (6) is sleeved on the first hinge shaft (42) between the lower swing arm (3) and the mounting frame (4) via a gear seat (60), and the gear seat (60) is fixedly connected to the driving gear (6) and the lower swing arm (3), respectively.

7. The lifting locking and unlocking device according to claim 6, characterized in that: The driving gear (6) is provided with a notch (61) along its radial direction and connected to the inner hole of the driving gear (6). The driving gear (6) is also provided with a fastener (62) that matches the notch (61) and is used to fasten the driving gear (6) to the gear seat (60).

8. The lifting locking and unlocking device according to claim 1, characterized in that: The mounting frame (4) and the hanging frame (8) are provided with a first locking member (91) for locking the two.

9. The lifting locking and unlocking device according to claim 1, characterized in that: The equipment frame (1) and the lower swing arm (3) are provided with a second locking member (92) for locking the two.

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