CN220725242U - Novel cast three-insurance connector - Google Patents

Abstract

The technical scheme of the utility model discloses a novel cast three-safety connector, which comprises a shell, a cast hook, a movable hook, a front hook, an elastic reed, a trigger ring, a safety pin, a front connecting rod, a rear safety and an oil cylinder, wherein the movable hook, the front hook, the elastic reed, the trigger ring, the safety pin, the front connecting rod, the rear safety and the oil cylinder are arranged in the shell, the front end of the oil cylinder is connected with the middle part of the movable hook through a front pin shaft of the oil cylinder, the rear end of the oil cylinder is connected with the shell through a rear pin shaft of the oil cylinder, the upper end of the movable hook is hinged with the shell, the elastic reed is arranged at the rear side of the movable hook, the rear end of the elastic reed is fixed on the trigger ring, the trigger ring is connected with the shell through a pin shaft of the trigger device, the front side of the trigger ring is provided with the safety pin, the trigger ring is hinged with the rear connecting rod and the front connecting rod, the front end of the rear connecting rod is hinged with the rear safety, and the torsion spring is arranged in the rear safety. The three-insurance of the connector is realized through the rear insurance, the front hook and the safety pin, the opening and closing of the three-insurance are controlled through the elastic reed triggering mechanism, the adjustable range is large, and the service cycle is long.

Description

Novel cast three-insurance connector

Technical Field

The utility model belongs to the technical field of engineering machinery, and particularly relates to a novel cast three-insurance connector.

Background

The connector is a device for quick and convenient connection and disconnection between engineering machinery accessories, and working components such as a bucket, a grab bucket, a breaking hammer or a lifting hook can be installed on an excavator through the connector according to production and operation requirements, so that the operation is quick and convenient, and the operation range is enlarged. The connector is fixed at the position of an excavator accessory through a mounting shaft, and patent CN 207512808U discloses a double-safety connector, which comprises a connector shell, a connecting shaft, a fixed clamping part, a movable clamping part and a hydraulic cylinder, wherein the fixed clamping part is arranged at the rear side of the connector shell, the movable clamping part is arranged at the front side of the connector shell through a hinge shaft, and a piston rod of the hydraulic cylinder is connected with the movable clamping part through a pin shaft; the rear safety device is arranged on the fixed clamping part, the middle part of the rear safety device is hinged with the fixed clamping part through a safety shaft, the rear safety device is connected with the pin shaft through a connecting rod, and the connecting rod shaft is connected with the connector shell through a spring; the connector shell is provided with a safety shaft, the movable clamping part is provided with a hook part matched with the safety shaft, and the hydraulic cylinder drives the working part and the connector to be installed and double-protected, but in order to ensure safety, the adjusting range of the movable clamping part is usually smaller, and the movable angle of the working part is limited. Therefore, it is desirable to design a connector with a wide range of adjustment of the movable hook.

Disclosure of Invention

In order to solve the prior art, the utility model provides a novel cast three-insurance connector, three insurance of the connector is realized through a rear insurance, a front hook and a safety pin, the opening and closing of the three insurance are controlled through an elastic reed trigger mechanism, the adjustable range is large, the service cycle is long, and the protection range of the front hook has large space and compact structure.

The technical scheme of the utility model is as follows: the utility model provides a novel three insurance connectors of casting, which comprises a housin, casting hook and the movable hook of setting inside the casing, the preceding hook, elastic reed, the trigger ring, the safety pin, preceding connecting rod, the back connecting rod, back insurance and hydro-cylinder, casting hook sets up in the casing downside, the upper portion of casing sets up the upper portion axle, the front end of hydro-cylinder is through round pin axle before the hydro-cylinder and movable hook middle part is connected, the rear end of hydro-cylinder is through hydro-cylinder back round pin axle and casing connection, movable hook upper end is articulated with the casing through movable hook round pin axle, elastic reed sets up at movable hook rear side, elastic reed's rear end is fixed on the trigger ring, the trigger ring is connected with the casing through the trigger device round pin axle, the front side of trigger ring sets up the safety pin, the safety pin is installed on the casing, the trigger ring is articulated with the back connecting rod of rear side and the preceding connecting rod's front end and front hook are articulated, the front end and the back insurance are articulated through rear device round pin axle and casing connection, the inside torsion spring that sets up behind the torsion spring, the torsion spring is installed on the rear device round pin epaxial.

Further, the shape of the elastic reed is L-shaped, the corner of the elastic reed is abutted with the movable hook, the front part of the rear insurance is provided with a groove, and the rear end of the elastic reed is inserted into the groove.

Further, the trigger ring is U-like structure, and the hydro-cylinder sets up in the inside upside of trigger ring, and recess and back connecting rod set up in the left side of trigger ring, and preceding connecting rod sets up in the right side of trigger ring, and preceding connecting rod and back connecting rod are connected with the upper portion of trigger ring, and the recess setting is in the middle part of trigger ring, and trigger device round pin axle sets up in the lower part of trigger ring, and the relief pin setting is in the downside of recess.

Further, the front hook is arranged on the front side of the movable hook, the directions of the front hook and the movable hook are opposite, the casting hook is arranged on the rear side of the movable hook, and the direction of the casting hook is the same as that of the front hook.

Further, one end of the torsion spring is connected with the rear safety, and the other end of the torsion spring is connected with the shell.

When the novel casting three-safety connector works, the novel casting three-safety connector is installed on the small arm and the H-shaped frame of the excavator through the upper shaft, when the oil cylinder is in a working state, the movable hook is driven to rotate anticlockwise around the movable hook pin shaft, the rear side of the movable hook contacts the elastic reed and then applies a backward acting force to the elastic reed, the elastic reed drives the trigger to rotate clockwise around the pin shaft of the trigger device, so that the rear connecting rod and the front connecting rod are driven to move backwards, the rear connecting rod drives the rear safety to rotate clockwise around the pin shaft of the rear device, the torsion spring is compressed at the same time, the retraction of the rear safety is realized, the front connecting rod drives the front hook to rotate clockwise around the front hook pin shaft, and the retraction of the front hook is realized, so that the installation of the movable hook, the casting hook and the excavator accessory is realized. When the oil cylinder fails, for example, the oil cylinder leaks inwards and the piston rod breaks, the torsion spring is reset under the action of self elastic force at the moment, and drives the rear safety device to rotate anticlockwise around the rear device pin shaft, so that the rear safety device limits the excavator accessory mounted on the casting hook, and the mounted excavator accessory is prevented from falling off when the movable hook breaks; meanwhile, the rear safety drives the trigger to rotate anticlockwise around the pin shaft of the trigger device through the rear connecting rod, so that the elastic reed is driven to move forwards, the elastic reed applies forward force to the movable hook, so that the movable hook is driven to rotate clockwise around the pin shaft of the movable hook, in addition, the trigger ring drives the front hook to rotate clockwise around the pin shaft of the front hook through the front connecting rod, so that the front hook and the movable hook move relatively, and the excavator accessory mounted on the movable hook is prevented from falling off when the back tiger mouth of the cast hook breaks. When the trigger surrounds the trigger device pin shaft to rotate anticlockwise, the trigger ring stops rotating after touching the safety pin, so that damage caused by overlarge rotating angles of the movable hook, the front hook and the rear safety is prevented.

By adopting the technical scheme, the beneficial effects of the utility model are as follows:

(1) The three-safety connector is realized through the rear safety, the front hook and the safety pin, the opening and closing of the three-safety connector are controlled through the elastic reed trigger mechanism, the adjustable range is large, the service cycle is long, the potential safety hazards such as falling off of excavator accessories are prevented when faults such as internal leakage of an oil cylinder and breakage of a piston rod occur, the front hook drives the front connecting rod to adjust through the trigger ring, and the protection range of the front hook is large in space and compact in structure.

(2) The utility model has compact structure and high strength, has small invalid torque when carrying the excavator accessory, can meet the condition that the maximum and minimum formation states of the small arm cylinder of the excavator are not interfered, has the maximum lifting and adduction angles of the mounted excavator accessory which are about 10 degrees larger than the amplitude of the existing connector, and can meet the condition that the pipeline of the pushing cylinder is not extruded in the limit state.

(3) The utility model can be used independently by arranging the rear insurance, the front hook and the safety pin according to actual requirements.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of the structure of the utility model with the housing removed;

fig. 3 is a schematic view of the structure of the trigger ring, front link and rear link of the present utility model.

In the figure, a shell 1, a casting hook 2, a movable hook 3, a front hook 4, an elastic reed 5, a trigger ring 6, a safety pin 7, a front connecting rod 8, a rear connecting rod 9, a rear safety 10, an oil cylinder 11, an upper shaft 12, an oil cylinder front pin 13, an oil cylinder rear pin 14, a movable hook pin 15, a trigger device pin 16, a front hook pin 17, a rear device pin 18, a torsion spring 19 and a groove 20 are shown.

Detailed Description

The utility model will be described in further detail with reference to the drawings and the detailed description.

Example 1

Referring to fig. 1 to 3, a novel cast three-safety connector comprises a housing 1, a cast hook 2, a movable hook 3, a front hook 4, an elastic reed 5, a trigger ring 6, a safety pin 7, a front connecting rod 8, a rear connecting rod 9, a rear safety 10 and an oil cylinder 11 which are arranged in the housing 1, wherein the cast hook 2 is arranged at the lower side of the housing 1, an upper shaft 12 is arranged at the upper part of the housing 1, the front end of the oil cylinder 11 is connected with the middle part of the movable hook 3 through an oil cylinder front pin shaft 13, the rear end of the oil cylinder 11 is connected with the housing 1 through an oil cylinder rear pin shaft 14, the upper end of the movable hook 3 is hinged with the housing 1 through an movable hook pin shaft 15, the elastic reed 5 is arranged at the rear side of the movable hook 3, the rear end of the elastic reed 5 is fixed on the trigger ring 6, the trigger ring 6 is connected with the shell 1 through a trigger device pin 16, the front side of the trigger ring 6 is provided with a safety pin 7, the safety pin 7 is installed on the shell 1, the trigger ring 6 is hinged with a rear connecting rod 9 at the rear side and a front connecting rod 8 at the front side, the front end of the front connecting rod 8 is hinged with a front hook 4, the front hook 4 is connected with the shell 1 through a front hook pin 17, the rear end of the rear connecting rod 9 is hinged with a rear safety 10, the rear safety 10 is connected with the shell 1 through a rear device pin 18, a torsion spring 19 is arranged in the rear safety 10, and the torsion spring 19 is installed on the rear device pin 18.

The trigger ring 6 can be driven to rotate by the back-and-forth movement of the elastic reed 5, and the trigger ring 6 drives the rear safety 10 and the front hook 4 to open or retract through the rear connecting rod 9 and the front connecting rod 8 respectively. The front hook 4 is driven to rotate by the front connecting rod 8, so that the protection range of the front hook 4 has large space and compact structure.

The oil cylinder 11 tightens up and drives the movable hook 3 to rotate anticlockwise around the movable hook pin shaft 15, when the movable hook 3 receives the last 15mm stroke, the state is controlled to be at the rear of the tip of the movable hook 3 which is more than the shell 1 corresponding to the movable hook 3, the excavator accessory is in a disengagement state, and the total trigger stroke is 11-12 mm.

Further, the elastic reed 5 is L-like in shape, the corner of the elastic reed 5 abuts against the movable hook 3, the front part of the rear bumper 10 is provided with a groove 20, and the rear end of the elastic reed 5 is inserted into the groove 20. Assembly errors and machining errors can be adjusted by the spring leaf 5.

Further, the trigger ring 6 is of a U-like structure, the oil cylinder 11 is arranged on the upper side of the inside of the trigger ring 6, the groove 20 and the rear connecting rod 9 are arranged on the left side of the trigger ring 6, the front connecting rod 8 is arranged on the right side of the trigger ring 6, the front connecting rod 8 and the rear connecting rod 9 are connected with the upper portion of the trigger ring 6, the groove 20 is arranged in the middle of the trigger ring 6, the trigger pin shaft 16 is arranged on the lower portion of the trigger ring 6, and the safety pin 7 is arranged on the lower side of the groove 20.

Further, the front hook 4 is arranged on the front side of the movable hook 3, the directions of the front hook 4 and the movable hook 3 are opposite, the casting hook 2 is arranged on the rear side of the movable hook 3, and the direction of the casting hook 2 is the same as the direction of the front hook 4. The excavator accessory is arranged on the movable hook 3 and the casting hook 2, and the front hook 4 limits the excavator accessory arranged on the movable hook 3.

Further, one end of the torsion spring 19 is connected to the rear bumper 10, and the other end is connected to the housing 1.

When the novel cast three-safety connector works, the novel cast three-safety connector is installed on the small arm and the H-shaped frame of the excavator through the upper shaft 12, when the oil cylinder 11 is in a working state to be tightened, the movable hook 3 is driven to rotate anticlockwise around the movable hook pin shaft 15, a backward acting force is applied to the elastic reed 5 after the rear side of the movable hook 3 contacts the elastic reed 5, the elastic reed 5 drives the trigger ring 6 to rotate clockwise around the trigger device pin shaft 16, so that the rear connecting rod 9 and the front connecting rod 8 are driven to move backwards, the rear connecting rod 9 drives the rear safety 10 to rotate clockwise around the rear device pin shaft 18, the torsion spring 19 is compressed, the retraction of the rear safety 10 is realized, the front connecting rod 8 drives the front hook 4 to rotate clockwise around the front hook pin shaft 17, and the retraction of the front hook 4 is realized, and therefore the installation of the movable hook 3, the cast hook 2 and the excavator accessories is realized. When the oil cylinder 11 fails, for example, the oil cylinder leaks inwards and a piston rod breaks, at the moment, the torsion spring 19 resets under the action of self elastic force to drive the rear safety device 10 to rotate anticlockwise around the rear device pin shaft 18, so that the rear safety device 10 limits the excavator accessory mounted on the casting hook 2, and the mounted excavator accessory is prevented from falling off when the movable hook 3 breaks; at the same time, the rear safety 10 drives the trigger ring 6 to rotate anticlockwise around the trigger pin 16 through the rear connecting rod 9, so as to drive the elastic reed 5 to move forwards, the elastic reed 5 applies forward force to the movable hook 3, so as to drive the movable hook 3 to rotate clockwise around the movable hook pin 15, in addition, the trigger ring 6 drives the front hook 4 to rotate clockwise around the front hook pin 17 through the front connecting rod 8, so that the front hook 4 and the movable hook 3 move relatively, and the excavator accessory mounted on the movable hook 3 is prevented from falling off when the tiger mouth of the cast hook 2 breaks. When the trigger ring 6 rotates anticlockwise around the trigger pin shaft 16, the trigger ring 6 stops rotating after touching the safety pin 7, and damage caused by overlarge rotation angles of the movable hook 3, the front hook 4 and the rear safety 10 is prevented.

Claims (5)

1. A novel cast three-way connector, characterized by: comprises a shell (1), a casting hook (2) and a movable hook (3), a front hook (4), an elastic reed (5), a trigger ring (6), a safety pin (7), a front connecting rod (8), a rear connecting rod (9), a rear safety (10) and an oil cylinder (11) which are arranged in the shell (1), wherein the casting hook (2) is arranged at the lower side of the shell (1), an upper shaft (12) is arranged at the upper part of the shell (1), the front end of the oil cylinder (11) is connected with the middle part of the movable hook (3) through an oil cylinder front pin shaft (13), the rear end of the oil cylinder (11) is connected with the shell (1) through an oil cylinder rear pin shaft (14), the upper end of the movable hook (3) is hinged with the shell (1) through an oil cylinder rear pin shaft (15), the elastic reed (5) is arranged at the rear side of the movable hook (3), the rear end of the elastic reed (5) is fixed on the trigger ring (6), the trigger ring (6) is connected with the shell (1) through a trigger device pin shaft (16), the safety pin (7) is arranged at the front side of the trigger ring (6), the safety pin (7) is arranged on the shell (1) and is hinged with the front side of the front connecting rod (8) of the movable reed (8), the front hook (4) is connected with the shell (1) through a front hook pin shaft (17), the rear end of the rear connecting rod (9) is hinged with the rear safety (10), the rear safety (10) is connected with the shell (1) through a rear device pin shaft (18), a torsion spring (19) is arranged in the rear safety (10), and the torsion spring (19) is arranged on the rear device pin shaft (18).

2. The novel cast triple safety connector according to claim 1, wherein: the shape of the elastic reed (5) is L-shaped, the corner of the elastic reed (5) is abutted with the movable hook (3), the front part of the rear insurance (10) is provided with a groove (20), and the rear end of the elastic reed (5) is inserted into the groove (20).

3. The novel cast triple safety connector according to claim 1, wherein: the trigger ring (6) is of a U-like structure, the oil cylinder (11) is arranged on the upper side of the inside of the trigger ring (6), the groove (20) and the rear connecting rod (9) are arranged on the left side of the trigger ring (6), the front connecting rod (8) is arranged on the right side of the trigger ring (6), the front connecting rod (8) and the rear connecting rod (9) are connected with the upper portion of the trigger ring (6), the groove (20) is arranged in the middle of the trigger ring (6), the trigger pin shaft (16) is arranged on the lower portion of the trigger ring (6), and the safety pin (7) is arranged on the lower side of the groove (20).

4. The novel cast triple safety connector according to claim 1, wherein: the front hook (4) is arranged on the front side of the movable hook (3), the directions of the front hook (4) and the movable hook (3) are opposite, the casting hook (2) is arranged on the rear side of the movable hook (3), and the direction of the casting hook (2) is the same as the direction of the front hook (4).

5. The novel cast triple safety connector according to claim 1, wherein: one end of the torsion spring (19) is connected with the rear bumper (10), and the other end is connected with the shell (1).