Excavator connector anti-drop protection device

Abstract

The utility model discloses an excavator connector anti-falling protection device which comprises a first connector, a second connector, perforating pieces fixedly arranged on the left side and the right side of the first connector and used for connecting pins, and a semi-arc fixing block fixedly arranged on the right side of the top of the first connector. According to the anti-falling protection device for the excavator connector, when the excavator bucket is in butt joint with the connector, a pin column at the top of the excavator bucket is assembled corresponding to a semi-arc movable block and a semi-arc fixed block, the pin column is located in semi-arc notches of the semi-arc movable block and the semi-arc fixed block, and a push cylinder assembled at the position of an air cylinder mounting base is controlled to operate; due to the fact that the telescopic end of the push cylinder is hinged to the inner frame of the semi-arc movable block, the second connector and the rotating sleeve connected to the top of the second connector can be driven to rotate on the outer wall of the fixing pin, and therefore the distance between the semi-arc movable block and the semi-arc fixed block can be adjusted and controlled.

Description

Technical Field

[0001] The utility model relates to the field of excavator connectors, in particular to an anti-drop protection device for an excavator connector. Background Art

[0002] Excavator quick connector, also called quick-change connector or quick connector, can quickly install and switch various configurations (bucket, ripper, breaker, hydraulic shear, etc.) on the excavator, which can expand the use range of the excavator, save time and improve work efficiency.

[0003] After searching, in the prior art, a Chinese patent with patent announcement number CN214883976U discloses an excavator quick connector, which includes a first connecting component and a second connecting component, a rotating structure is provided between the first connecting component and the second connecting component, and the rotating structure is connected to the connecting rod of the excavator; the first connecting component includes a first grabbing part, and the first grabbing part is connected to the bucket of the excavator; the second connecting component includes a second grabbing part, and the second grabbing part is connected to the bucket of the excavator, and an anti-slipping part is provided on the second connecting component, and the anti-slipping part is connected to the first grabbing part. The excavator quick connector can quickly install tools such as the excavator bucket, breaker, hydraulic shears, etc., saving time and effort, and greatly saving installation time;

[0004] The comparative document fails to provide an anti-drop component. Although the cylinder provided in the connector can drive a set of movable parts to rotate and increase the distance between the movable parts and the fixed parts to achieve the connection of the bucket, no anti-drop component is provided at the fixed parts. During use, improper operation may cause the bucket to fall off. Utility Model Content

[0005] The utility model aims to provide an anti-drop protection device for an excavator connector to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An anti-dropout protection device for an excavator connector comprises a connector 1 and a connector 2, and is characterized in that: a perforated piece fixedly arranged on the left and right sides of the connector 1 for connecting a pin, a semi-arc fixed block fixedly arranged on the right side of the top of the connector 1, a fixed pin fixedly arranged on the left side of an inner frame of the connector 1, a rotating sleeve rotatably connected to the outer wall of the fixed pin, a semi-arc movable block fixedly connected to the bottom of the rotating sleeve, a groove provided at the center position of the lower part of the inner wall of the semi-arc fixed block, sliding grooves provided on the left and right sides of the lower part of the inner wall of the semi-arc fixed block, and an anti-dropout block is slidably connected to the sliding groove, and a lifting ear is fixedly connected to the upper surface of the anti-dropout block.

[0008] As a further solution of the utility model: a through hole is opened on the upper surface of the lifting ear, and a locking rod is installed at the through hole. The locking rod is concave, and an insertion rod 1 is inserted at the transverse rod position of the locking rod. The insertion rod 1 is located below the lifting ear.

[0009] As a further solution of the utility model: it includes connector 1 and connector 2, the locking rod position of connector 1 is provided with a slider, the front facade of the slider is fixedly connected with a lifting ear, the upper surface of the lifting ear is provided with a through hole, the European connecting rod is inserted in the through hole position, the top of the connecting rod is fixedly connected with a bolt, and the lower part of the outer wall of the connecting rod is threadedly connected with a lock nut.

[0010] As a further solution of the utility model: it includes connector 1 and connector 2, the locking rod position of connector 1 is provided with a slider, the front facade of the slider is fixedly connected with a lifting ear, the upper surface of the lifting ear is provided with a through hole, a vertical tube is fixedly connected at the through hole position, an insertion rod 1 is inserted at the top of the vertical tube, a welding rod 1 is fixedly connected to the side of the vertical tube, and the welding rod 1 is located at the upper position of the lifting ear.

[0011] As a further solution of the utility model: it includes connector 1 and connector 2, the locking rod position of connector 1 is provided with a slider, the front facade of the slider is fixedly connected to a lifting ear, the upper surface of the lifting ear is provided with a through hole, a guide cylinder is fixedly connected to the through hole position, the top of the guide cylinder is plugged with insertion rod 2, the outer wall of the guide cylinder is fixedly connected with welding rod 2, the lower part of the outer wall of the insertion rod 2 is plugged with insertion rod 2, and the insertion rod 2 is located below the lifting ear.

[0012] As a further solution of the present invention: the connector 1 and the connector 2 have the same specifications.

[0013] As a further solution of the utility model: a cylinder mounting seat is installed on the side of the inner frame of the connector 1 and the connector 2, and the telescopic end of the cylinder mounting seat is hinged to the inner frame of the semi-arc movable block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] According to the utility model, when the bucket and connector one are connected, the pin column on the top of the bucket is assembled corresponding to the semi-arc movable block and the semi-arc fixed block, and the pin column is placed in the semi-arc grooves of the semi-arc movable block and the semi-arc fixed block, so that the push cylinder assembled on the cylinder mounting seat is controlled to operate. Since the telescopic end of the push cylinder is hingedly installed with the inner frame of the semi-arc movable block, the connector two and the rotating sleeve connected to the top of the connector two are driven to rotate on the outer wall of the fixed pin, thereby realizing the regulation of the distance between the semi-arc movable block and the semi-arc fixed block. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1The present invention is a structural schematic diagram of an anti-drop protection device for an excavator connector.

[0017] Figure 2 The present invention is a structural diagram of connector 2 in an anti-detachment protection device for connectors of an excavator.

[0018] Figure 3 The present invention is a structural diagram of a connector 1 in an anti-drop protection device for an excavator connector.

[0019] Figure 4 The present invention is a structural diagram of a first embodiment of an anti-drop protection device for an excavator connector.

[0020] Figure 5 This is a structural diagram of a second embodiment of an anti-detachment protection device for an excavator connector.

[0021] Figure 6 This is a structural diagram of Example 3 of an anti-detachment protection device for an excavator connector.

[0022] Figure 7 The present invention is a structural diagram of a fourth embodiment of an anti-detachment protection device for an excavator connector.

[0023] In the figure: connector 1, connector 2, semi-arc movable block 3, slider 4, groove 5, semi-arc fixed block 6, fixing pin 7, rotating sleeve 8, cylinder mounting seat 9, perforated member 10, lifting ear 11, locking rod 12, insertion rod 13, bolt 14, lock nut 15, connecting rod 16, welding rod 17, insertion rod 18, welding rod 2 19, insertion rod 2 20, guide cylinder 21, insertion rod 2 22. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 In the embodiment of the utility model, an anti-drop protection device for an excavator connector includes a connector 1 and a connector 2, a perforating piece 10 fixedly arranged on the left and right sides of the connector 1 for connecting a pin, a semi-arc fixed block 6 fixedly arranged on the right side of the top of the connector 1, a fixed pin 7 fixedly arranged on the left side of the inner frame of the connector 1, a rotating sleeve 8 rotatably connected to the outer wall of the fixed pin 7, a semi-arc movable block 3 fixedly connected to the bottom of the rotating sleeve 8, a groove 5 provided at the center position of the lower part of the inner wall of the semi-arc fixed block 6, a sliding groove is provided on the left and right sides of the lower part of the inner wall of the semi-arc fixed block 6, and an anti-drop block 4 is slidably connected to the sliding groove part,

[0026] Example 1 Figure 4 As shown: the upper surface of the anti-slip block 4 is fixedly connected with a lifting ear 11, the upper surface of the lifting ear 11 is provided with a through hole, and a locking rod 12 is installed at the through hole. The locking rod 12 is concave, and an insertion rod 13 is inserted at the transverse rod position of the locking rod 12, and the insertion rod 13 is located below the lifting ear 11.

[0027] Example 2 Figure 5 As shown: an anti-drop protection device for an excavator connector, comprising a connector 1 and a connector 2, an anti-drop block slider 4 is assembled at the locking rod position of the connector 1 and the connector 2, a lifting ear 11 is fixedly connected to the front elevation of the slider 4, a through hole is opened on the upper surface of the lifting ear 11, a European connecting rod 16 is inserted at the through hole position, a bolt 14 is fixedly connected to the top of the connecting rod 16, and a lock nut 15 is threadedly connected to the lower part of the outer wall of the connecting rod 16;

[0028] Example 3 Figure 6 As shown: an anti-detachment protection device for an excavator connector includes a connector 1 and a connector 2, a slider 4 is provided at the locking rod portion of the connector 1, a lifting ear 11 is fixedly connected to the front elevation of the slider 4, a through hole is provided on the upper surface of the lifting ear 11, a vertical cylinder is fixedly connected at the through hole portion, an insertion rod 18 is inserted at the top of the vertical cylinder, a welding rod 17 is fixedly connected to the side of the vertical cylinder, and the welding rod 17 is located at the upper portion of the lifting ear 11.

[0029] Embodiment 4 Figure 7 As shown: an anti-detachment protection device for an excavator connector includes a connector 1 and a connector 2, a slider 4 is provided at the locking rod portion of the connector 1, a lifting ear 11 is fixedly connected to the front facade of the slider 4, a through hole is provided on the upper surface of the lifting ear 11, a guide cylinder 21 is fixedly connected to the through hole portion, an insertion rod 22 is plugged into the top of the guide cylinder 21, a welding rod 29 is fixedly connected to the outer wall of the guide cylinder 21, an insertion rod 20 is plugged into the lower portion of the outer wall of the insertion rod 22, and the insertion rod 20 is located below the lifting ear 11.

[0030] The working principle of the utility model is:

[0031] When in use, the perforated pieces 10 are assembled at both ends of the connector 1 for connecting with the driving rod of the excavator, and the semi-arc movable block 3 and the semi-arc fixed block 6 assembled on the left side of the connector 1 are used to connect with the bucket;

[0032] The connector 2 and the connector 1 are arranged horizontally and vertically, and are used to dock with the vertical hydraulic clamp assembly to ensure the multiple adaptability of the excavator;

[0033] When docking the bucket with connector 1, assemble the pin on the top of the bucket to the corresponding positions of the semi-arc movable block 3 and the semi-arc fixed block 6, and place the pin in the semi-arc notch of the semi-arc movable block 3 and the semi-arc fixed block 6, and control the operation of the push cylinder assembled at the cylinder mounting seat 9. Since the telescopic end of the push cylinder is hingedly installed with the inner frame of the semi-arc movable block 3, the connector 2 and the rotating sleeve 8 connected to the top of the connector 2 will be driven to rotate on the outer wall of the fixed pin 7, thereby realizing the adjustment of the spacing between the semi-arc movable block 3 and the semi-arc fixed block 6, which is used to adapt to the connection of excavator buckets of different specifications;

[0034] Since the semi-arc fixed block 6 is fixed and the semi-arc movable block 3 is movable, after the semi-arc movable block 3 rotates, the pin connection of the arc groove of the semi-arc movable block 3 can be strengthened, but the semi-arc fixed block 6 is not limited and is easy to fall off;

[0035] In order to limit the semi-arc fixing block 6, the corresponding components are as follows;

[0036] Insert the vertical rod of the locking rod 12 into the opening of the lifting ear 11, and insert the insert rod 13 into the vertical rod to lock the locking rod 12 on the lifting ear 11;

[0037] Connecting rods 16 are installed on both sides of the outer wall of the bolt 14 and inserted into the openings on the upper surface of the lifting lug 11. The lock nut 15 and the connecting rod 16 are threadedly fixed to achieve the locking of the bolt 14 and the lifting lug 11.

[0038] A vertical cylinder is fixed at one end of the welding rod 17, and an insertion rod 18 is inserted into the top of the vertical cylinder. The inserted insertion rod 18 will also pass through the opening on the upper surface of the lifting ear 11, so as to realize the limit locking between the welding rod 17 and the lifting ear 11;

[0039] Fix the guide cylinder 21 at both ends of the welding rod 19, insert the insertion rod 22 into the guide cylinder 21, and insert the insertion rod 20 into the lower part of the outer wall of the corresponding insertion rod 22 through the opening of the lifting ear 11, so as to realize the limit locking between the insertion rod 22 and the welding rod 19.

[0040] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An anti-drop protection device for connectors of an excavator, comprising a connector 1 (1) and a connector 2 (2), characterized in that: A perforating piece (10) for connecting a pin is fixedly arranged on the left and right sides of the connector one (1), a semi-arc fixed block (6) is fixedly arranged on the right side of the top of the connector one (1), a fixed pin (7) is fixedly arranged on the left side of the inner frame of the connector one (1), a rotating sleeve (8) is rotatably connected to the outer wall of the fixed pin (7), a semi-arc movable block (3) is fixedly connected to the bottom of the rotating sleeve (8), a groove (5) is provided at the center position of the lower part of the inner wall of the semi-arc fixed block (6), and sliding grooves are provided on the left and right sides of the lower part of the inner wall of the semi-arc fixed block (6), and an anti-slip block (4) is slidably connected to the sliding groove, and a lifting ear (11) is fixedly connected to the upper surface of the anti-slip block (4).

2. The excavator connector anti-drop protection device according to claim 1, characterized in that: The upper surface of the lifting ear (11) is provided with a through hole, and a locking rod (12) is installed at the through hole. The locking rod (12) is concave, and an insertion rod (13) is inserted at the transverse rod position of the locking rod (12). The insertion rod (13) is located at the lower part of the lifting ear (11).

3. The excavator connector anti-drop protection device according to claim 1, characterized in that: The connector 1 (1) and the connector 2 (2) have the same specifications.

4. The excavator connector anti-drop protection device according to claim 1, characterized in that: A cylinder mounting seat (9) is installed on the inner frame side of the connector 1 (1) and the connector 2 (2), and the telescopic end of the cylinder mounting seat (9) is hingedly arranged with the inner frame of the semi-arc movable block (3).

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