A loader safety lock device

Abstract

The application discloses a loader safety locking device, which comprises a front arm and a bucket, a fixed plate one is fixedly installed on the front arm, a fixed plate two is fixedly installed on the bucket, two clamping rods are slidably installed on the fixed plate one, a sliding mechanism and a pressing mechanism are installed between the two clamping rods and the fixed plate one, a linkage mechanism is installed between the two clamping rods, a fixed groove matched with the two clamping rods is formed in the fixed plate two, and a locking mechanism matched with the lower clamping rod is installed on the fixed plate two. The device has the advantages that full automatic locking and full automatic disengaging are realized, manual locking is not needed, the safety of locking is improved, the labor intensity is reduced, the problem of shaking caused by long-term wear of the clamping rod can be effectively avoided, the clamping and compactness between the clamping rod and the fixed groove are greatly improved, and the safety performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of loaders, in particular to a loader safety locking device. BACKGROUND

[0002] The loader is a kind of earthwork construction machinery widely used in highway, railway, building, water and electricity, port, mine and other construction projects, which is mainly used for shoveling soil, sand, lime, coal and other bulk materials, and can also be used for light digging of ore and hard soil, etc., and its main components include a machine body, a telescopic arm and a bucket, in order to facilitate the maintenance and replacement of the bucket, the connection between the bucket and the telescopic arm is now detachable, in order to improve the firmness of the connecting part, a safety locking device is needed to fix it.

[0003] The existing safety locking device is relatively simple, which is manually clamped, and has the following disadvantages in specific use: 1. The manual locking safety is low; 2. Manual locking needs to consume a lot of manpower, and the labor intensity is large; 3. The clamping locking has wear and tear, which will cause loosening and reduce safety performance after a long time.

[0004] Therefore, a new type of loader safety locking device can be used to solve the problems of the prior art. SUMMARY

[0005] The purpose of the present application is to solve the problems in the prior art and provide a loader safety locking device.

[0006] In order to achieve the above purpose, the present application adopts the following technical scheme:

[0007] A loader safety locking device, comprising a forearm and a bucket, a fixed plate one is fixedly installed on the forearm, a fixed plate two is fixedly installed on the bucket, two clamping rods are slidably installed on the fixed plate one, a sliding mechanism and a pressing mechanism are installed between the two clamping rods and the fixed plate one, a linkage mechanism is installed between the two clamping rods, a fixed groove matched with the two clamping rods is formed on the fixed plate two, a locking mechanism matched with the lower clamping rod is installed on the fixed plate two, a disengagement mechanism matched with the upper clamping rod is installed on the fixed plate two, two bearing plates are fixedly installed on the fixed plate one, a pad plate is installed on each bearing plate through a clamping mechanism, and one motor is fixedly installed on each pad plate.

[0008] In the above-mentioned loader safety locking device, the sliding mechanism comprises a sliding sheet, one sliding sheet is fixedly installed on the fixed clamping rod, a plurality of rollers are rotatably installed on the sliding sheet, and a sliding channel matched with the plurality of rollers is formed on the fixed plate one.

[0009] In the loader safety locking device, the pressing mechanism comprises a spring two, and a spring two is fixedly installed between each of the two sliding plates and the corresponding sliding groove.

[0010] In the loader safety locking device, the linkage mechanism comprises a rack one and a gear one, a rack one is fixedly installed on each of the two clamping rods, and the gear one is rotatably installed on the fixed plate one and engaged with the two racks one.

[0011] In the loader safety locking device, the locking mechanism comprises a screw three, a nut one, a support rod, a rotating block one, a resisting block, a gasket, a rotating column, a sliding rod and a groove, a plurality of support rods are fixedly installed at the lower end of the fixed plate two, a rotating block one is fixedly installed on each of the support rods, a nut one is rotatably installed on each of the rotating block one, the screw three is threadedly rotatably installed on the nut one, the gasket is fixedly installed on the screw three, the rotating column is fixedly installed on the gasket, the resisting block is rotatably installed on the rotating column and matched with the lower clamping rod, the sliding rod is fixedly installed on the resisting block, and the groove matched with the sliding rod is formed in the fixed plate two.

[0012] In the loader safety locking device, the disengaging mechanism comprises a screw one, a nut one, a support rod, a rotating block one, a resisting plate, a rotating block two, a gasket, a sliding block and a sliding groove, two support rods are fixedly installed on the upper portion of the fixed plate two, a rotating block one is fixedly installed on each of the two support rods, a nut one is rotatably installed on the two rotating block one, the screw one is threadedly rotatably installed on the nut one, the gasket is fixedly installed on the screw one, the rotating block two is rotatably installed on the gasket, the resisting plate is rotatably installed on the rotating block two, the sliding block is fixedly installed on the resisting plate, the sliding groove matched with the sliding block is formed in the fixed plate two, and the driving structure is installed between the upper motor and the upper nut one and between the lower motor and the lower nut one.

[0013] In the loader safety locking device, the driving structure comprises a gear two and a gear three, a gear two is fixedly installed on each of the two nuts one, and a gear three engaged with the corresponding gear two is fixedly installed on the driving end of each of the two motors.

[0014] In the loader safety locking device, the clamping mechanism comprises a clamping block, a spring one, a clamping groove, a rack two and a gear four, two clamping blocks are slidably installed on the gasket, a spring one is fixedly installed between each of the two clamping blocks and the gasket, the clamping groove matched with the two clamping blocks is formed in the bearing plate, a rack two is fixedly installed on each of the two clamping blocks, the gear four engaged with the two rack two is rotatably installed in the clamping groove, and the fixed structure is installed between the clamping block away from the motor one and the gasket.

[0015] In the loader safety locking device, the fixing structure comprises two screw rods and two nuts, the two nuts are fixedly installed on the base plate, the two nuts are threadedly rotatably installed with the two screw rods, the two screw rods are in through sliding connection with the base plate, and the two screw rods are in rotary connection with the base plate, and the two screw rods are in rotary connection with the clamping blocks close to one side of the two screw rods.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1: By setting the clamping rod, the fixed groove, the motor, the gear two and the gear three, the nut one can be automatically rotated, thereby driving the screw rod one and the screw rod three to automatically lift, so as to realize the purpose of automatic locking and automatic disengagement, without manual locking, improve the safety of locking, and reduce the labor intensity.

[0018] 2: By setting the abutting block, the lower clamping rod can be fixed, the gap between the clamping rod and the fixed groove is reduced, the problem of shaking caused by long-term wear of the clamping rod is effectively avoided, the clamping and compactness between the clamping rod and the fixed groove is greatly improved, and the safety performance is improved.

[0019] 3: By setting the clamping block, the clamping groove and the spring one, the installation and disassembly of the base plate 13 and the support of the support plate 15 are more convenient, the original screw butt fixed mode is replaced, and the installation and disassembly efficiency of the motor is greatly improved.

[0020] In summary, the present application realizes the purpose of automatic locking and automatic disengagement, without manual locking, improves the safety of locking, reduces the labor intensity, effectively avoids the problem of shaking caused by long-term wear of the clamping rod, greatly improves the clamping and compactness between the clamping rod and the fixed groove, and improves the safety performance. BRIEF DESCRIPTION OF DRAWINGS

[0021] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0022] Figure 1 A structure diagram of a loader safety locking device according to the present application is shown in the figure;

[0023] Figure 2 A structure diagram of a loader safety locking device according to the present application is shown in the figure; Figure 1 An enlarged structure diagram of part A in the figure is shown in the figure;

[0024] Figure 3 An enlarged structure diagram of part B in the figure is shown in the figure; Figure 1 An enlarged structure diagram of part C in the figure is shown in the figure;

[0025] Figure 4 An enlarged structure diagram of part C in the figure is shown in the figure; Figure 1 An enlarged structure diagram of part C in the figure is shown in the figure;

[0026] Figure 5 For Figure 1 Enlarged structural schematic view of the middle D part.

[0027] In the figure: 1 forearm, 2 bucket, 3 fixed plate one, 4 fixed plate two, 5 rack one, 6 gear one, 7 screw one, 8 nut one, 9 gear two, 10 gear three, 11 support rod, 12 rotating block one, 13 pad, 14 motor, 15 bearing plate, 16 clamping block, 17 spring one, 18 screw two, 19 nut two, 20 clamping groove, 21 stop plate, 22 rotating block two, 23 pad block, 24 sliding block, 25 sliding groove, 26 clamping rod, 27 limiting block, 28 stop block, 29 screw three, 30 sliding piece, 31 roller, 32 spring two, 33 gasket, 34 rotating column, 35 sliding rod, 36 groove body, 37 rack two, 38 gear four. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0029] With reference to Figures 1-5 A loader safety locking device, comprising a forearm 1 and a bucket 2, the forearm 1 is fixedly installed with a fixed plate one 3, the bucket 2 is fixedly installed with a fixed plate two 4, the fixed plate one 3 is slidably installed with two clamping rods 26, the two clamping rods 26 and the fixed plate one 3 are installed with a sliding mechanism and a pressing mechanism, the two clamping rods 26 are installed with a linkage mechanism, the fixed plate two 4 is provided with fixed grooves matched with the two clamping rods 26, the fixed plate two 4 is installed with a locking mechanism matched with the lower clamping rod 26, the fixed plate two 4 is installed with a disengaging mechanism matched with the upper clamping rod 26, the fixed plate one 3 is fixedly installed with two bearing plates 15, the two bearing plates 15 are each installed with a pad 13 through a clamping mechanism, and the two pads 13 are each fixedly installed with a motor 14;

[0030] The above notable points are as follows:

[0031] 1. The fixed clamping rod 26 is fixedly installed with a sliding piece 30, the sliding mechanism comprises the sliding piece 30, the sliding piece 30 is rotatably installed with a plurality of rollers 31, and the fixed plate one 3 is provided with sliding ways matched with the plurality of rollers 31, so that the friction between the clamping rod 26 and the sliding way is reduced, and the service life of the clamping rod 26 is prolonged.

[0032] 2、The pressing mechanism comprises a spring 32, and one spring 32 is fixedly installed between each of the two sliding plates 30 and the corresponding sliding groove. This arrangement allows the clamping rod 26 to be instantaneously clamped with the fixed groove, preventing dislocation between the clamping rod 26 and the fixed groove.

[0033] 3、The linkage mechanism comprises a rack 5 and a gear 6, one rack 5 is fixedly installed on each of the two clamping rods 26, and one gear 6 is rotatably installed on the fixed plate 3 and engaged with the two racks 5. This arrangement allows the two clamping rods 26 to move in opposite directions simultaneously, thereby increasing the clamping speed.

[0034] 4、The locking mechanism comprises a screw 29, a nut 8, a support rod 11, a rotating block 12, an abutting block 28, a gasket 33, a rotating column 34, a sliding rod 35, and a groove 36. A plurality of support rods 11 are fixedly installed at the lower end of the fixed plate 2, one rotating block 12 is fixedly installed on each support rod 11, one nut 8 is rotatably installed on each rotating block 12, the screw 29 is threadedly rotatably installed on the nut 8, the gasket 33 is fixedly installed on the screw 29, the rotating column 34 is fixedly installed on the gasket 33, the abutting block 28 is rotatably installed on the rotating column 34 and cooperates with the lower clamping rod 26, the sliding rod 35 is fixedly installed on the abutting block 28, and the groove 36 is formed in the fixed plate 2 and cooperates with the sliding rod 35. This arrangement allows the lower clamping rod 26 to be fixed, effectively preventing the clamping rod 26 from shaking due to long-term wear and tear, greatly improving the clamping tightness between the clamping rod 26 and the fixed groove and enhancing safety performance.

[0035] 5、The disengaging mechanism comprises a screw 7, a nut 8, a support rod 11, a rotating block 12, an abutting plate 21, a rotating block 22, a gasket 23, a sliding block 24, and a sliding groove 25. Two support rods 11 are fixedly installed on the upper portion of the fixed plate 2, one rotating block 12 is fixedly installed on each support rod 11, one nut 8 is rotatably installed on the two rotating blocks 12, the screw 7 is threadedly rotatably installed on the nut 8, the gasket 23 is fixedly installed on the screw 7, the rotating block 22 is rotatably installed on the gasket 23, the abutting plate 21 is rotatably installed on the rotating block 22, the sliding block 24 is fixedly installed on the abutting plate 21, and the sliding groove 25 is formed in the fixed plate 2 and cooperates with the sliding block 24. Driving structures are installed between the upper motor 14 and the upper nut 8 and between the lower motor 14 and the lower nut 8. This arrangement allows the clamping rod 26 to be separated from the fixed groove without manual operation, effectively reducing the labor intensity.

[0036] 6、The driving structure comprises gear two 9 and gear three 10, one gear two 9 is fixedly installed on each of the two nuts one 8, and one gear three 10 is fixedly installed on the driving end of each of the two motors 14 and engaged with the corresponding gear two 9. This arrangement is to realize automatic locking and automatic disengagement, without manual locking, improving the safety of locking and reducing the labor intensity.

[0037] 7、The clamping mechanism comprises clamping block 16, spring one 17, clamping groove 20, rack two 37 and gear four 38, two clamping blocks 16 are slidingly installed on the backing plate 13, one spring one 17 is fixedly installed between each of the two clamping blocks 16 and the backing plate 13, the clamping groove 20 is formed in the bearing plate 15 and matched with the two clamping blocks 16, one rack two 37 is fixedly installed on each of the two clamping blocks 16, and the gear four 38 is rotatably installed on the clamping groove 20 and engaged with the two rack two 37. A fixing structure is installed between the clamping block 16 away from the motor 14 and the backing plate 13. This arrangement is to replace the original screw butt joint fixing method, making the installation and disassembly of the backing plate 13 and the bearing plate 15 bracket more convenient and greatly improving the installation and disassembly efficiency of the motor 14.

[0038] 8、The fixing structure comprises screw two 18 and nut two 19, the nut two 19 is fixedly installed on the backing plate 13, and the screw two 18 is threadedly rotatably installed on the nut two 19. The screw two 18 is slidingly connected with the backing plate 13, rotatably connected with the backing plate 13, and rotatably connected with the clamping block 16 close to the screw two 18. This arrangement is to fix the clamping block 16 and improve the stability of the clamping block 16.

[0039] 9、The motor 14 can be a YM-200 bidirectional motor.

[0040] 10、The fixing groove is fixedly installed with a limiting block 27 matched with the abutting plate 21. This arrangement is to limit the abutting plate 21.

[0041] Motor 14 installation: clamp the clamping block 16 into the clamping groove 20, then rotate the screw two 18, under the action of the nut two 19, the clamping block 16 rotatably connected with the screw two 18 moves to the side close to the screw two 18, and under the action of the rack two 37 and the gear four 38, the other clamping block 16 moves in the opposite direction, thereby fixing the clamping block 16. The disassembly is reversed by rotating the screw two 18.

[0042] Docking: the card rod 26 is inserted into the fixed slot, then the lower motor 14 is started, the lower motor 14 drives the gear three 10 to rotate, the gear two 9 is driven to rotate, the gear nut one 8 is driven to rotate, so that the screw rod one 7 moves downward, until the block 28 abuts against the lower card rod 26, thereby completing the docking operation.

[0043] Separation: according to the above docking operation, the control motor 14 is reversed, the block 28 is separated from the lower card rod 26, then the upper motor 14 is started, the abutting plate 21 moves downward, the upper card rod 26 is pushed to move downward, until the upper card rod 26 is separated from the fixed slot, at the same time, under the action of the rack one 5 and the gear one 6, the lower card rod 26 is also separated from the fixed slot, thereby realizing the separation operation of the fixed plate one 3 and the fixed plate two 4.

[0044] The above is only the preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, within the technical range disclosed by the present application, makes equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A loader safety locking device comprising a front arm (1) and a bucket (2), characterized in that, The forearm (1) is fixedly installed with a fixed plate one (3), the shovel (2) is fixedly installed with a fixed plate two (4), the fixed plate one (3) is slidably installed with two clamping rods (26), the two clamping rods (26) are installed with sliding mechanisms and abutting mechanisms between the fixed plate one (3), the two clamping rods (26) are installed with linkage mechanisms, the fixed plate two (4) is provided with fixed grooves matched with the two clamping rods (26), the fixed plate two (4) is installed with a locking mechanism matched with the lower clamping rod (26), the fixed plate two (4) is installed with a disengaging mechanism matched with the upper clamping rod (26), the fixed plate one (3) is fixedly installed with two bearing plates (15), the two bearing plates (15) are both installed with a backing plate (13) through clamping mechanisms, and the two backing plates (13) are both fixedly installed with one motor (14). The disengaging mechanism comprises a screw one (7), a nut one (8), a supporting rod (11), a rotating block one (12), an abutting plate (21), a rotating block two (22), a backing block (23), a sliding block (24) and a sliding groove (25), the upper part of the fixed plate two (4) is fixedly installed with two supporting rods (11), the two supporting rods (11) are both fixedly installed with one rotating block one (12), the two rotating block ones (12) are jointly rotatably installed with one nut one (8), the nut one (8) is threadedly rotatably installed with the screw one (7), the screw one (7) is fixedly installed with the backing block (23), the backing block (23) is rotatably installed with the rotating block two (22), the rotating block two (22) is rotatably installed with the abutting plate (21), the abutting plate (21) is fixedly installed with the sliding block (24), the fixed plate two (4) is provided with the sliding groove (25) matched with the sliding block (24), and the upper motor (14) and the upper nut one (8) and the lower motor (14) and the lower nut one (8) are both installed with driving structures.

2. A safety locking device for a loader as set forth in claim 1, characterized in that The sliding mechanism comprises a sliding sheet (30), the two clamping rods (26) are both fixedly installed with one sliding sheet (30), the sliding sheet (30) is rotatably installed with a plurality of rollers (31), and the fixed plate one (3) is provided with sliding channels matched with the plurality of rollers (31).

3. A safety locking device for a loader as set forth in claim 2, wherein The abutting mechanism comprises a spring two (32), and one spring two (32) is fixedly installed between the two sliding sheets (30) and the corresponding sliding channels.

4. A safety locking device for a loader as set forth in claim 3, wherein The linkage mechanism comprises a rack one (5) and a gear one (6), the two clamping rods (26) are both fixedly installed with one rack one (5), and the fixed plate one (3) is rotatably installed with one gear one (6) engaged with the two rack ones (5).

5. A safety locking device for a loader as set forth in claim 4, wherein Said locking mechanism includes screw three (29), nut one (8), support rod (11), rotating block one (12), stopper (28), gasket (33), rotating column (34), slide rod (35) and groove (36), the lower end of said fixed plate two (4) is fixedly installed with a plurality of support rods (11), one rotating block one (12) is fixedly installed on each of said support rods (11), one nut one (8) is commonly rotatably installed on each of said rotating block one (12), the nut one (8) is threadedly rotatably installed with screw three (29), the screw three (29) is fixedly installed with gasket (33), the gasket (33) is fixedly installed with rotating column (34), the rotating column (34) is rotatably installed with stopper (28) matched with lower clamping rod (26), the stopper (28) is fixedly installed with slide rod (35), the fixed plate two (4) is provided with groove (36) matched with slide rod (35).

6. A safety locking device for a loader as set forth in claim 5, wherein Said driving structure includes gear two (9) and gear three (10), one gear two (9) is fixedly installed on each of two said nuts one (8), one gear three (10) is fixedly installed on the driving end of each of two said motors (14) and engaged with the corresponding gear two (9).

7. A safety locking device for a loader as set forth in claim 6, wherein Said clamping mechanism includes clamping block (16), spring one (17), clamping groove (20), rack two (37) and gear four (38), two clamping blocks (16) are slidingly installed on the backing plate (13), one spring one (17) is fixedly installed between each of two said clamping blocks (16) and the backing plate (13), the clamping groove (20) is formed in the bearing plate (15) and matched with two clamping blocks (16), one rack two (37) is fixedly installed on each of two said clamping blocks (16), the gear four (38) is rotatably installed on the clamping groove (20) and engaged with two rack two (37), the backing plate (13) is installed with a fixed structure between the clamping block (16) away from the motor (14).

8. A safety locking device for a loader as set forth in claim 7, characterized in that Said fixed structure includes screw two (18) and nut two (19), the nut two (19) is fixedly installed on the backing plate (13), the screw two (18) is threadedly rotatably installed on the nut two (19), the screw two (18) is slidingly connected with the backing plate (13) and rotatably connected with the backing plate (13), the screw two (18) is rotatably connected with the clamping block (16) close to the screw two (18).

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