Winding shaft type double-insurance connector

Abstract

The utility model discloses a winding shaft type double-insurance connector which comprises a shell and two connecting columns installed on the inner wall of the shell. The inner wall of the shell is connected with a fourth shaft, the outer wall of the fourth shaft is sleeved with a movable hook, the movable hook is internally connected with a third shaft, the shell is internally slidably connected with a first shaft, an oil cylinder is arranged in the shell, and the outer wall of the third shaft is sleeved with one end of a piston rod of the oil cylinder. According to the winding shaft type double-insurance connector, the piston rod of the oil cylinder extends out, the movable hook is matched with the movable jaw at the front end to tightly hold a large shaft of an accessory, the rear end of the oil cylinder can drive the first shaft to move in the long-groove-shaped sliding way and drive the connecting rod to drive the insurance hook to rotate clockwise around the second shaft, the insurance hook is opened and wraps the large shaft at the rear end of the accessory, and even if the movable hook is broken, the movable hook cannot be damaged. When the accessory is detached, the front end large shaft of the accessory is detached, but the rear end large shaft can still enable the accessory to be connected with the connector under the action of the rear end movable jaw and the safety hook, so that the accessory is prevented from being detached from the connector and falling off to cause potential safety hazards, and the use effect of the connector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a shaft-wrap type double insurance connector. Background Art

[0002] The connector of the excavator attachment, especially the quick connector, is an important part of the excavator. It allows the operator to quickly change different attachments, such as buckets, breakers, ripper, etc. without extensive disassembly and reinstallation.

[0003] After the existing connector connects the excavator to the attachment, the excavator may be subjected to additional shock and vibration when operating on some sites with complex terrain, which may affect the stability of the connector, and then cause the attachment to fall off from the connector easily, thus affecting the operation of the excavator. Utility Model Content

[0004] The utility model aims to provide a shaft-wrap type double insurance connector to solve the problem that the attachment is easy to fall off from the connector proposed in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shaft-wrap type double insurance connector, comprising a housing, and two connecting columns installed on the inner wall of the housing;

[0006] The inner wall of the shell is connected to shaft four, the outer wall of shaft four is sleeved with a movable hook, shaft three is connected inside the movable hook, shaft one is slidably connected between the shells, an oil cylinder is arranged inside the shell, one end of the oil cylinder piston rod is sleeved on the outer wall of shaft three, and the other end is sleeved on the outer wall of shaft one; shaft two is connected inside the shell, the outer wall of shaft two is rotatably connected with a safety hook, and a driving mechanism for driving the safety hook to rotate is arranged on shaft one.

[0007] Preferably, two long groove-shaped slideways are provided inside the shell, and the shaft 1 is slidably connected inside the two long groove-shaped slideways.

[0008] Preferably, baffles are slidably connected inside the two long trough-shaped slideways, and each of the baffles is connected to the shell by two bolts.

[0009] Preferably, the driving mechanism comprises a connecting rod and an axis five;

[0010] The outer wall of the shaft 1 is connected to two connecting rods, the other ends of the two connecting rods are connected to the shaft 5, and the other ends of the two shafts 5 are rotatably connected to the outer wall of the safety hook.

[0011] Preferably, a front movable jaws is provided at the bottom end of each shell, and a rear movable jaws is provided at the bottom end of each shell.

[0012] Preferably, the inner wall of the shell is connected to a limiting plate.

[0013] Preferably, the inner wall of the shell is connected to a limit rod.

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

[0015] The piston rod of the oil cylinder is extended to make the movable hook cooperate with the front movable jaws to hold the large shaft of the attachment tightly, and the rear end of the oil cylinder will drive the shaft 1 to move inside the long groove slideway, driving the connecting rod to drive the safety hook to rotate clockwise around the shaft 2, and the safety hook opens to wrap the large shaft at the rear end of the attachment. Even if the movable hook breaks and the large shaft at the front end of the attachment is separated, the large shaft at the rear end can still connect the attachment to the connector under the action of the rear movable jaws and the safety hook, so that the attachment will not fall off the connector and cause safety hazards, thereby improving the use effect of the connector; BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 For the utility model Figure 1 Exploded diagram of

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the housing, oil cylinder, shaft one, shaft two, movable hook, shaft three, shaft four and limit plate of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the oil cylinder, connecting rod, shaft one, safety hook, shaft two, movable hook, shaft three, shaft four and shaft five of the utility model;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the movable hook of the utility model.

[0021] In the figure: 1. shell; 101. connecting column; 2. front movable jaws; 201. rear movable jaws; 3. cylinder; 4. connecting rod; 5. axis one; 501. long groove slide; 502. baffle; 6. safety hook; 7. axis two; 8. movable hook; 9. axis three; 10. axis four; 11. limit rod; 12. limit plate; 13. axis five. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-5 The utility model provides a technical solution: a shaft-wrapped double-insurance connector, comprising a shell 1, and two connecting columns 101 are installed on the inner wall of the shell 1; the inner wall of the shell 1 is connected to a shaft 4 10, the outer wall of the shaft 4 10 is sleeved with a movable hook 8, the inside of the movable hook 8 is connected to a shaft 3 9, the inside of the shell 1 is slidably connected to a shaft 1 5, an oil cylinder 3 is arranged inside the shell 1, one end of the piston rod of the oil cylinder 3 is sleeved on the outer wall of the shaft 3 9, and the other end is sleeved on the outer wall of the shaft 1 5; the inside of the shell 1 is connected to a shaft 2 7, the outer wall of the shaft 2 7 is rotatably connected to a safety hook 6, and a driving mechanism for driving the safety hook 6 to rotate is arranged on the shaft 1 5.

[0024] Two long groove-shaped slideways 501 are provided inside the shell 1 , and the shaft 1 5 is slidably connected inside the two long groove-shaped slideways 501 .

[0025] Baffles 502 are slidably connected inside the two long groove slideways 501 , and each baffle 502 is connected to the housing 1 via two bolts.

[0026] The driving mechanism includes a connecting rod 4 and a shaft 5 13;

[0027] The outer wall of shaft one 5 is connected to two connecting rods 4, the other ends of the two connecting rods 4 are connected to shaft five 13, and the other ends of the two shaft five 13 are rotatably connected to the outer wall of the safety hook 6.

[0028] A front movable jaw 2 is provided at the bottom of the shell 1, and a rear movable jaw 201 is provided at the bottom of the shell 1; the front movable jaw 2 is used in conjunction with the movable hook 8 to clamp the main shaft of the accessory, and the rear movable jaw 201 is used in conjunction with the safety hook 6 to wrap the rear main shaft of the accessory.

[0029] The inner wall of the housing 1 is connected with a limit plate 12 .

[0030] The inner wall of the shell 1 is connected with a limiting rod 11 , which can limit the movable hook 8 and connect the shell 1 at the same time, thereby improving the stability of the connection between the connecting column 101 and the shell 1 .

[0031] Working principle: the rear end movable jaws 201 clamp the large shaft of the attachment, and the connector is pressed down by the I-beam of the excavator's forearm, and the front end movable jaws 2 are close to another large shaft of the attachment. At this time, the piston rod of the oil cylinder 3 extends out, and drives the movable hook 8 to rotate clockwise around the axis 4 10 through the axis 3 9. The D surface of the movable hook 8 is close to the large shaft of the attachment, and the C surface and the front end movable jaws 2 act at the same time to hold the large shaft of the attachment. At this time, when the rear end of the oil cylinder 3 drives the axis 1 5 to move to the upper right along the long groove slide 501, it drives the safety hook 6 to rotate clockwise around the axis 2 7 through the connecting rod 4, and the safety hook 6 opens to wrap the rear end large shaft of the attachment; in this way, even if the movable hook 8 breaks and the front end large shaft of the attachment is detached, the rear end large shaft is still in the rear end movable jaws 2 01 and the safety hook 6, the attachment can still be connected to the connector, so that the attachment will not fall off the connector and cause a safety hazard; when the piston rod of the cylinder 3 retracts, it drives the movable hook 8 to rotate counterclockwise around the axis four 10, and the C side of the movable hook 8 is separated from the front shaft of the attachment. Driven by the connecting rod 4, the connector rises, and the front end movable jaws 2 are separated from the front shaft of the attachment. When the movable hook 8 rotates counterclockwise until the B side of the movable hook 8 contacts the limit plate 12, the cylinder 3 moves to the lower left along the long groove slide 501 through the axis one 5, and the safety hook 6 is driven by the connecting rod 4 to rotate counterclockwise around the axis two 7 until the safety hook 6 is completely retracted into the shell. At this time, the fixed jaws can be separated from the rear end shaft of the attachment.

[0032] The above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaft-wrap type double insurance connector, comprising a housing (1), and two connecting posts (101) mounted on the inner wall of the housing (1); characterized in that: The inner wall of the shell (1) is connected to a shaft four (10), the outer wall of the shaft four (10) is sleeved with a movable hook (8), the interior of the movable hook (8) is connected to a shaft three (9), the shells (1) are slidably connected to a shaft one (5), an oil cylinder (3) is arranged inside the shell (1), one end of the piston rod of the oil cylinder (3) is sleeved on the outer wall of the shaft three (9), and the other end is sleeved on the outer wall of the shaft one (5); The shell (1) is internally connected to a second shaft (7), the outer wall of the second shaft (7) is rotatably connected to a safety hook (6), and the first shaft (5) is provided with a driving mechanism for driving the safety hook (6) to rotate.

2. The shaft-wrap double-insurance connector according to claim 1, characterized in that: Two long groove-shaped slideways (501) are provided inside the shell (1), and the shaft 1 (5) is slidably connected inside the two long groove-shaped slideways (501).

3. The shaft-wrap double-insurance connector according to claim 2, characterized in that: The two long groove-shaped slideways (501) are both slidably connected with baffles (502) inside, and each of the baffles (502) is connected to the housing (1) via two bolts.

4. The shaft-wrap double-insurance connector according to claim 1, characterized in that: The driving mechanism comprises a connecting rod (4) and a shaft five (13); The outer wall of the shaft one (5) is connected to two connecting rods (4), the other ends of the two connecting rods (4) are connected to the shaft five (13), and the other ends of the two shaft five (13) are rotatably connected to the outer wall of the safety hook (6).

5. The shaft-wrap double insurance connector according to claim 1, characterized in that: A front movable jaw (2) is provided at the bottom end of each shell (1), and a rear movable jaw (201) is provided at the bottom end of the shell (1).

6. The shaft-wrap double insurance connector according to claim 1, characterized in that: The inner wall of the housing (1) is connected to a limiting plate (12).

7. The shaft-wrap double insurance connector according to claim 1, characterized in that: The inner wall of the housing (1) is connected to a limit rod (11).

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