Locking device for folding mechanism and conveyor

Abstract

This invention relates to a locking device and a feeding machine for a folding mechanism, belonging to the field of locking devices. Its features include a locking guide frame and a locking hook. The locking guide frame has a connecting plate with a groove. The locking hook is slidably connected to the groove. One end of the locking hook extends to the front of the connecting plate and has an inwardly bent hook body. The other end of the locking hook is connected to a first driving part mounted on the locking guide frame, used to drive the locking hook to move in the groove. The locking device also includes a locking pin mounted on the folding mechanism. When the folding mechanism is folded to a certain extent, the folding mechanism moves the locking pin to the contact range of the hook body. This invention utilizes the structure itself for reliable locking, has low requirements for machining accuracy and assembly, is simple in structure, and is easy to implement and operate.

Description

Technical Field

[0001] This invention relates to the field of locking devices, and more specifically to a locking device and a feeder for a folding mechanism. Background Technology

[0002] Currently, specialized vehicles or equipment carrying material conveying components, such as grain transport vehicles and road milling machines, generally include a walking system and a conveyor. In order to facilitate transportation, the conveyor is often designed as a foldable structure. The conveyor is unfolded when working and folded up for transport, and locked with a corresponding locking device.

[0003] In existing technologies, the locking device of the folding mechanism generally uses the form of pins and hooks. This places high demands on the drilling and assembly of the holes on the folding mechanism. If the hole gap is too small, it is difficult to assemble. If the hole gap is too large, it cannot be locked after assembly. Moreover, the structure is unstable during vehicle transportation, which can easily produce abnormal noises and cause the material conveying components to be in a free state during transportation. Once the material conveying components are loose, it can not only cause damage to the vehicle or equipment, but also cause personal injury or damage to other items, posing a great safety hazard. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the shortcomings of the prior art by providing a locking device and a feeding machine for a folding mechanism. The device has a simple structure, low requirements for machining accuracy and assembly accuracy, and is easy to implement.

[0005] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A locking device for a folding mechanism, characterized in that it includes a locking guide frame and a locking hook, a connecting plate is provided on the locking guide frame, a groove is opened on the connecting plate, the locking hook is slidably connected to the groove, one end of the locking hook extends to the front side of the connecting plate and is provided with an inwardly bent hook body, and the other end of the locking hook is connected to a first driving part installed on the locking guide frame for driving the locking hook to move in the groove; the locking device also includes a locking pin installed on the folding mechanism, when the folding mechanism is folded to a certain extent, the folding mechanism moves the locking pin to the contact range of the hook body.

[0006] Furthermore, the first drive unit adopts a hydraulic cylinder structure, with one end of the hydraulic cylinder hinged to the locking guide frame and the other end hinged to the locking hook.

[0007] Furthermore, the connecting plate is a set of upright plates symmetrically mounted on the locking guide frame.

[0008] Furthermore, the groove is configured as a rectangular groove structure.

[0009] Furthermore, the locking guide frame has an inclined surface near the end of the connecting plate, and a groove is provided on the inclined surface.

[0010] A material conveyor, characterized in that it includes a locking device for a folding mechanism as described above, wherein the folding mechanism is a foldable material conveyor frame, the material conveyor frame includes a material conveying base frame and a material conveying section hinged to the material conveying base frame, the material conveying section includes a plurality of material conveyor frame sections hinged in sequence, the locking guide frame is fixedly installed on the material conveying base frame, and the locking pin is fixedly installed on the material conveying section.

[0011] Furthermore, adjacent material conveyor sections are hinged together by hinge shafts and connecting parts, and a second drive unit for driving the material conveyor to unfold is connected between the material conveyor base and the adjacent material conveyor section, as well as between adjacent material conveyor sections.

[0012] Furthermore, the connecting part includes a material conveyor drive arm and a material conveyor hinge arm. One end of the material conveyor hinge arm is hinged to the material conveyor section, and the other end of the material conveyor hinge arm is hinged to the material conveyor drive arm. The other end of the material conveyor drive arm is hinged to the second drive part.

[0013] Furthermore, the second drive unit adopts a hydraulic cylinder, one end of which is hinged to the drive arm of the conveyor frame, and the other end is hinged to the corresponding conveyor frame section or conveyor base frame.

[0014] Furthermore, the locking guide frame is fixedly installed on the left and right sides of the material conveying base frame, and the front end of the locking guide frame is inclined upward at a preset angle to the horizontal direction, and the locking pin is fixedly installed on the left and right sides of the material conveying section.

[0015] The beneficial effects of this invention are as follows: This invention uses a locking device composed of a locking guide frame, a locking hook, and a first driving part, in conjunction with a locking pin installed on the folding mechanism, for locking during folding. This structure does not require special precision machining such as openings; it relies on the structure itself for reliable locking, has low requirements for machining accuracy and assembly, is simple in structure, and easy to implement and operate. It simultaneously ensures the ease of machining and the stability of the locking mechanism. The material conveyor using this locking device has excellent locking stability, thus greatly improving the safety of the material conveyor during storage and transportation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the locking device of the present invention;

[0017] Figure 2 This is a schematic diagram of the locking guide frame of the present invention;

[0018] Figure 3 This is a schematic diagram of the unfolded structure of the material conveyor of the present invention;

[0019] Figure 4 This is a structural schematic diagram of the intermediate state of the material conveyor during the receiving process of the present invention;

[0020] Figure 5 This is a structural schematic diagram of the intermediate state of the material conveyor during the receiving process of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of the material conveyor after it has been stored.

[0022] In the figure: 1. Locking guide frame, 11. Inclined surface, 110. Groove, 2. Locking hook, 21. Hook body, 3. Connecting plate, 31. Slide groove, 4. First drive unit, 5. Locking pin, 6. Conveying frame, 61. Conveying base frame, 62. Conveying section, 621. First section of conveying frame, 622. Second section of conveying frame, 623. Tail section of conveying frame, 7. Connecting part, 71. Conveying frame drive arm, 72. Conveying frame hinge arm, 8. Second drive unit, 9. Hinge shaft. Detailed Implementation

[0023] The principles and features of the present invention are described below. The embodiments given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0024] In the description of the present invention, it should be understood that the description indicating the orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of the present invention.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "linked," and "fastened" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0026] like Figure 1 and Figure 2As shown, the locking device for the folding mechanism in this embodiment includes a locking guide frame 1 and a locking hook 2. A connecting plate 3 is provided on the locking guide frame 1, and a sliding groove 31 is opened on the connecting plate 3. The locking hook 2 is slidably connected to the sliding groove 31. One end of the locking hook 2 extends to the front side of the connecting plate 3 and is provided with an inwardly bent hook body 21. The other end of the locking hook 2 is connected to a first driving part 4 installed on the locking guide frame 1, which is used to drive the locking hook 2 to move in the sliding groove 31. In this embodiment, the first driving part 4 adopts a hydraulic cylinder structure. One end of the hydraulic cylinder is hinged to the locking guide frame 1, and the other end is hinged to the locking hook 2. The locking device also includes a locking pin 5 installed on the folding mechanism.

[0027] The operating principle of the above structure is as follows: the first drive unit 4 drives the locking hook 2 to move forward in the slide groove 31 and extend the hook body 21. A space for fixing the locking pin 5 is formed between the hook body 21 and the connecting plate 3. When the folding mechanism is folded to a certain extent, the folding mechanism moves the locking pin 5 to the reach range of the hook body 21. When the hook body 21 touches and hooks the locking pin 5, the first drive unit 4 pulls the locking hook 2 back until the hook body 21 moves close to the connecting plate 3, and the locking pin 5 is tightly clamped between the hook body 21 and the connecting plate 3.

[0028] In this embodiment, the connecting plate 3 adopts a set of upright plates symmetrically installed on the locking guide frame 1, which facilitates the installation and fixation of the upright plates on the locking guide frame 1. A sliding groove 31 is opened between the middle of the two upright plates. In this embodiment, the sliding groove 31 is set as a rectangular groove structure, which, together with the flat plate structure of the main body of the locking hook 2, provides a sliding groove structure for the locking hook, and at the same time, can limit the directional sliding of the locking hook 2 to a certain extent, preventing it from swinging.

[0029] In this embodiment, an inclined surface 11 is provided on the end of the locking guide frame 1 near the connecting plate 3. The purpose of the inclined surface 11 is to limit the running trajectory of the locking pin 5 pulled back by the hook body 21, so that the locking pin 5 eventually moves along the inclined surface 11 to a position close to the connecting plate 3. A groove 110 is provided on the inclined surface 11. The purpose of the groove 110 is to provide a certain displacement compensation for the hook body 21 when the locking pin 5 runs along the inclined surface 11, so as to finally achieve the fastening of the locking pin 5.

[0030] The material conveyor in this embodiment, such as Figures 3-6 As shown, the device includes the locking device described above. The folding mechanism is a foldable material conveyor 6. The material conveyor 6 includes a material conveying base 61 and a material conveying section 62 that is hinged to the material conveying base 61. The material conveying section 62 includes a plurality of material conveyor sections that are hinged to each other in sequence. The locking guide frame 1 is fixedly installed on the upper part of the material conveying base 61, and the locking pin 5 is fixedly installed on the material conveying section 62.

[0031] In this embodiment, a three-section conveyor frame is used as an example, consisting of a first section 621, a second section 622, and a tail section 623. The first section 621 is hinged to the conveyor base frame 61, and a second drive unit 8 is connected between them. The first section 621 and the second section 622, as well as the second section 622 and the tail section 623, are hinged to each other via hinge pins 9 and connecting parts 7, respectively. The second drive unit 8 is also connected between the first section 621 and the second section 622, as well as between the second section 622 and the tail section 623.

[0032] Taking one of the connecting parts 7 as an example, the connecting part 7 includes a conveyor drive arm 71 and a conveyor hinge arm 72. The conveyor drive arm 71 has three hinge points, which form a triangular structure. The first hinge point is hinged to the first section 621 of the conveyor, the second hinge point is hinged to the second drive unit, and the third hinge point is hinged to one end of the conveyor hinge arm 72. The other end of the conveyor hinge arm 72 is hinged to the second section 622 of the conveyor. The second drive unit 8 is a hydraulic cylinder. Taking one of the second drive units 8 as an example, one end of it is hinged to the second hinge point of the conveyor drive arm 71, and the other end is hinged to the first section 621 of the conveyor.

[0033] One end of the conveyor frame hinge arm 72 is hinged to the conveyor frame section 621, and the other end of the conveyor frame hinge arm 72 is hinged to the conveyor frame drive arm 71. The other end of the conveyor frame drive arm 71 is hinged to the second drive unit 8.

[0034] The second drive unit connected between adjacent material conveyor sections is used to unfold each material conveyor section to form a material conveying section 62. The angle of the material conveying section 62 can be changed by extending and retracting the second drive unit connected to the material conveying base 61, thereby adjusting the material receiving height of the material conveyor.

[0035] The locking guide frame 1 is provided in two parts, which are symmetrically fixedly installed on the left and right sides of the material conveying base frame 61. At the same time, the locking pin 5 is also provided in two parts, which are symmetrically fixedly installed on the left and right sides of the second section 622 of the material conveying frame. In this way, the purpose of locking and hooking the locking pin can be achieved without affecting the arrangement of the oil circuit of the first drive unit and the second drive unit, and without affecting the folding of the material conveying frame.

[0036] See the storage process of the material conveyor rack. Figures 3-6 Before locking, the first drive unit is in the extended state. Driven by the second drive unit, and in conjunction with the linkage between the drive arms and hinge arms of each conveyor frame, the conveyor frames are retracted. As the conveyor frames retract, each conveyor frame gradually closes, and the locking pin gradually moves closer to the hook body until it reaches the retraction range of the hook body. Figure 5The hook touches and engages the locking pin. The first drive unit pulls the locking hook back until the hook approaches the connecting plate, tightly clamping the locking pin between the hook and the connecting plate. Simultaneously, the extension and retraction of the second drive unit connected to the conveyor base are adjusted until the retraction is complete. The three conveyor sections close tightly, and the locking hook and locking pin work together to press firmly, completing the locking process of the conveyor frame. See [link / description]. Figure 6 .

[0037] Regarding the installation position of the locking pin, if the conveyor frame has an odd number of sections, the locking pin should be installed on the second-to-last conveyor frame section; if the conveyor frame has an even number of sections, the locking pin should be installed on the last conveyor frame section. This arrangement aims to better achieve the storage effect of the conveyor frame and prevent phenomena such as sagging at the tail end.

[0038] The front end of the locking guide frame 1 is tilted upward at a certain acute angle to the horizontal direction. The purpose of this setting is twofold: first, to enable the first drive unit to perform its function and prevent oil leakage; second, to ensure that when the hook locks the locking pin and pulls it back close to the connecting plate, the upward trend can better fix the locking pin and prevent it from slipping out.

Claims

1. A locking device for a folding mechanism, used for locking the folding mechanism when it is folded, said folding mechanism being a foldable feeder (6), the feeder (6) comprising a feeder base (61) and a feeder section (62) hinged to the feeder base (61); characterized in that, The locking device includes a locking guide frame (1) and a locking hook (2). The locking guide frame (1) is fixedly installed on the material conveying base frame (61). The locking guide frame (1) is fixedly installed on the left and right sides of the material conveying base frame (61). A connecting plate (3) is provided on the locking guide frame (1). The connecting plate (3) is a set of vertical plates symmetrically installed on the locking guide frame (1). A sliding groove (31) is opened on the connecting plate (3). The sliding groove (31) is set as a rectangular groove structure. The locking hook (2) is connected to the sliding groove (31) in a sliding manner. One end of the locking hook (2) extends to the front side of the connecting plate (3) and is provided with a hook body (21) that bends inward and downward. The other end of the locking hook (2) is connected to a first driving part (4) installed on the locking guide frame (1) for driving the locking hook (2) to move in the sliding groove (31). An inclined surface (11) is provided on the end of the locking guide frame (1) near the connecting plate (3). A groove (110) is provided on the inclined surface (11). The locking device further includes a locking pin (5) installed on the folding mechanism, the locking pin (5) being fixedly installed on the conveying section (62); When the folding mechanism is folded to a certain extent, the folding mechanism will move the locking pin (5) to the reach of the hook body (21), and pull the locking hook (2) back through the first drive part (4) until the hook body (21) moves close to the connecting plate (3), and pull the locking pin (5) to the plane between the top of the inclined surface (11) and the connecting plate (3) on the locking guide frame (1), and lock it between the hook body (21) and the connecting plate (3).

2. The locking device for a folding mechanism according to claim 1, characterized in that, The first drive unit (4) adopts a hydraulic cylinder structure. One end of the hydraulic cylinder is hinged to the locking guide frame (1), and the other end is hinged to the locking hook (2).

3. A material conveyor, characterized in that, Includes a locking device for a folding mechanism as described in claim 1 or 2, wherein the folding mechanism is a foldable feeder (6), the feeder (6) includes a feeder base (61) and a feeder section (62) hinged to the feeder base (61), the feeder section (62) includes a plurality of feeder sections hinged in sequence, the locking guide (1) is fixedly installed on the feeder base (61), and the locking pin (5) is fixedly installed on the feeder section (62).

4. The conveyor according to claim 3, characterized in that, Adjacent material conveyor sections are connected by hinges and connecting parts (7), and the material conveyor base (61) is connected to the adjacent material conveyor section and to the adjacent material conveyor section, and to the material conveyor section, respectively, by a second driving part (8) for driving the material conveyor (6) to unfold.

5. The conveyor according to claim 4, characterized in that, The connecting part (7) includes a material conveyor drive arm (71) and a material conveyor hinge arm (72). One end of the material conveyor hinge arm (72) is hinged to the material conveyor section, and the other end of the material conveyor hinge arm (72) is hinged to the material conveyor drive arm (71). The other end of the material conveyor drive arm (71) is hinged to the second drive part (8).

6. The feeder according to claim 4 or 5, characterized in that, The second drive unit (8) is a hydraulic cylinder. One end of the hydraulic cylinder is hinged to the material conveyor drive arm (71), and the other end is hinged to the corresponding material conveyor section or material conveyor base (61).

7. The conveyor according to claim 6, characterized in that, The locking guide frame (1) is fixedly installed on the left and right sides of the material conveying base frame (61), and the front end of the locking guide frame (1) is inclined upward at a preset angle to the horizontal direction. The locking pin (5) is fixedly installed on the left and right sides of the material conveying section (62).

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