CN117702837A - Quick connector of excavator swing bucket - Google Patents

Abstract

The invention relates to the technical field of excavators, and discloses a quick connector of an excavator swinging hopper, which comprises a lock hook, wherein mounting grooves are formed in positions, close to the hook, of two sides of the lock hook, a compression spring, a piston inner cylinder and a hydraulic rod are mounted in the mounting grooves, sliding grooves are formed in the top ends of the hook parts of the lock hook, the sliding grooves are communicated with the bottom ends of the mounting grooves, connecting holes are formed in the sliding grooves, a sliding block, a permanent magnet and a coil are arranged in the sliding grooves, display lamps are mounted on two sides of the lock hook and are electrically connected with the coil, connecting holes are formed in the mounting holes of the lock hook and are communicated with the mounting grooves, and a limiting rod is slidably mounted in the mounting holes of the lock hook. According to the quick connector of the excavator swinging hopper, the hydraulic rod is pressed through the excavator connecting shaft, so that the permanent magnet penetrates through the coil to generate current, an operator is reminded of the hydraulic device to be in place through the display lamp, and the hydraulic device is prevented from continuously acting to damage the lock hook.

Description

Quick connector of excavator swing bucket

Technical Field

The invention relates to the technical field of excavators, in particular to a quick connector of an excavator swinging hopper.

Background

The excavator is one of the most main engineering machines in modern engineering construction, and the excavator not only can be connected with the excavator bucket, but also can be connected with various configuration parts, such as: in some projects, a plurality of configuration parts are required to be matched for use, and the efficiency of manually replacing the configuration parts is low, so that when various configuration parts are required to be quickly replaced by the excavator, the quick connector of the excavator is required, and the replacement efficiency of the accessories is ensured.

When the quick connector of the excavator is used for connecting accessories, after the tiger mouth of the quick connector of the excavator is clamped on the connecting shaft of the configuration parts such as the excavator bucket, the hydraulic device is required to push the lock hook to be clamped on the connecting shaft of the other side of the configuration parts such as the excavator bucket, however, due to the sight problem of an operator in an operating room of the excavator, the operator cannot determine whether the hydraulic device is pushed to a specified position to enable the lock hook to be clamped on the connecting shaft, so if the lock hook is not clamped on the connecting shaft and the excavator bucket is lifted, the excavator bucket can directly fall down, and accidents are easy to occur; and if the lock hook is clamped on the connecting shaft, the operator continues to enable the hydraulic device to push the lock hook, and the hinge shaft between the lock hook and the hydraulic device is easy to bend or impact and abrade, so that the service life of the hinge shaft of the excavator is influenced.

Disclosure of Invention

Aiming at the defects of the prior excavator quick connector in the use process, the invention provides the excavator swinging hopper quick connector which has the advantages of automatically detecting whether the lock hook is fastened to the excavator connecting shaft or not, avoiding bending or impact abrasion caused by overlarge stress of the hinge shaft at the lock hook, and solving the technical problems in the prior art.

The invention provides the following technical scheme: the utility model provides a quick connector of excavator swing fill, includes the latch hook, the mounting hole has been seted up to the intermediate position of latch hook, compression spring has been placed in the mounting groove, mounting groove slidable mounting has the piston inner tube, the intermediate position fixed mounting of piston inner tube upper end has the hydraulic stem, the spout has been seted up on the hook portion top of latch hook, the connecting hole intercommunication that spout and mounting groove bottom were seted up, be full of the transmission liquid in spout and the mounting groove, slidable mounting has the slider in the spout, the slider is close to bottom position fixing cover and is equipped with the permanent magnet, the side terminal surface of spout is embedded with the coil hook portion both sides fixed mounting of latch hook has the display lamp, display lamp and coil electric connection.

Preferably, the compression spring is always in a compressed state.

Preferably, the sliding groove is matched with the bending shape of the sliding block and the bending shape of the hook part of the locking hook.

Preferably, the connecting hole has been seted up to the mounting hole both sides of latch hook, the connecting hole of mounting hole both sides is located and keeps away from latch hook portion side, the one end and the mounting groove bottom intercommunication of connecting hole, the other end and the mounting hole intercommunication of connecting hole, connecting hole and mounting groove intercommunication department fixed mounting have the relief valve, the gag lever post is installed to the connecting hole in sliding in the connecting hole both sides, the gag lever post of mounting hole both sides is fixed connection in reset spring's both ends respectively, one of them the terminal surface fixed mounting of gag lever post has control switch.

Preferably, the length of the limiting rod is greater than the width of the mounting hole.

The invention has the following beneficial effects:

1. the invention is characterized in that the installation groove is formed in the lock hook, the compression spring, the piston inner cylinder and the hydraulic rod are installed in the installation groove, the sliding groove is formed in the top end of the hook part of the lock hook, the sliding block is slidably installed in the sliding groove, the permanent magnet is arranged on the sliding block, the coil is fixedly arranged at the side end of the sliding groove, the installation groove is communicated with the bottom end of the sliding groove, the installation groove is filled with transmission liquid, the display lamp is fixedly arranged at the side end of the lock hook and is electrically connected with the coil, when the lock hook is connected with a matched part such as a bucket, the bucket connecting shaft contacts the lock hook, the hydraulic rod on the lock hook is pressed by the bucket connecting shaft, the hydraulic rod drives the piston inner cylinder to move downwards, the transmission liquid in the installation groove enters the sliding groove, the sliding block in the sliding groove is pushed to slide out, and reaches a designated position when the lock hook is tightly attached to the bucket connecting shaft, the lock hook is fastened with the bucket connecting shaft, at this moment, the permanent magnet on the sliding groove passes through the inside of the coil, the coil generates current, the display lamp emits light, and an operator is reminded to complete the connection. By the mode, whether the lock hook is tightly buckled with the excavator connecting shaft is detected, and the phenomenon that the lock hook is not tightly buckled with the excavator connecting shaft to cause the excavator to fall down to cause accident is avoided.

2. According to the invention, when the sliding block slides out, the locking of the lock hook on the bucket connecting rod is enhanced, and the phenomenon that the bucket connecting rod falls off is avoided.

3. According to the invention, the connecting hole is formed in the lock hook and is communicated with the mounting groove, the limiting rods are slidably arranged in the connecting hole at the joint of the lock hook and the hydraulic device, the reset spring and the control switch are arranged between the limiting rods at the two sides, after the bucket is fixed, if the hydraulic device continues to push the lock hook to move, at the moment, transmission liquid in the mounting groove enters the connecting hole through the pressure release valve to push the limiting rods in the connecting hole to slide, so that the limiting rods extend out, the limiting rods squeeze the control switch, the control switch stops supplying oil to the hydraulic device, the hydraulic device continues to push the lock hook after the lock hook reaches the maximum position, the hinge shaft at the lock hook is deformed or broken, and the service life of the hinge shaft at the lock hook is prolonged.

Drawings

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

FIG. 2 is a left side view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

FIG. 4 is a cross-sectional view of the shackle of FIG. 3 in accordance with the present invention;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 4 in accordance with the present invention;

FIG. 6 is a schematic view of the present invention in combination with a bucket and a horn;

fig. 7 is a partially enlarged schematic view of the structure of fig. 6 at D in accordance with the present invention.

In the figure: 1. a main body; 2. a connecting plate; 3. a horn connecting shaft; 4. a tiger mouth; 5. a first support shaft; 6. a hydraulic device; 7. a second support shaft; 8. a latch hook; 801. a mounting groove; 802. a compression spring; 803. a piston inner cylinder; 804. a hydraulic rod; 805. a chute; 806. a slide block; 807. coils, 808, permanent magnets; 809 (809 a, 809 b), connection holes; 810. a limit rod; 811. a limiting block; 812. a display lamp; 813. a mounting hole; 814. a return spring; 815. a control switch; 9. a hinge shaft; 10. a bucket; 11. a bucket connecting shaft; 12. a horn.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, a quick connector of an excavator swinging hopper comprises a main body 1, a connecting plate 2, a first supporting shaft 5 and a second supporting shaft 7, wherein the middle of the main bodies 1 at two ends is fixedly connected with two arm connecting shafts 3 through the connecting plate 2, the tiger mouth 4 is formed at the bottom end of the other side of the main body 1 at two ends, the first supporting shaft 5 and the second supporting shaft 7 are fixedly arranged at the middle of the main bodies 1 at two ends, the first supporting shaft 5 is movably sleeved at the bottom end of an outer cylinder of a hydraulic device 6, a lock hook 8 is movably sleeved on the second supporting shaft 7, the direction of a hook part of the lock hook 8 is opposite to that of the tiger mouth 4, a mounting hole 813 is formed in the middle position of the lock hook 8, a hinge shaft 9 is fixedly arranged in the mounting hole 813, and the hinge shaft 9 is movably sleeved at the top end of an inner cylinder of the hydraulic device 6.

The mounting groove 801 has been seted up near the hook position in the both sides of latch hook 8, compression spring 802 has been placed in the mounting groove 801, mounting groove 801 slidable mounting has piston inner tube 803, the intermediate position fixed mounting of piston inner tube 803 upper end has hydraulic stem 804, mounting groove 801 top fixed mounting has stopper 811, spout 805 has been seted up on the hook portion top of latch hook 8, connecting hole 809a and connecting hole 809a communicate in the bottom of mounting groove 801 has been seted up to the bottom of spout 805, be full of transmission liquid in spout 805 and the mounting groove 801, the transmission liquid is the liquid that the compression ratio is little, for example: the hydraulic oil, water, glycerin and the like are arranged on the sliding groove 805 in a sliding mode, a permanent magnet 808 is fixedly sleeved on the sliding groove 806 near the bottom end, a coil 807 is embedded in the side end face of the sliding groove 805, the coil 807 is packaged in an insulating mode, display lamps 812 are fixedly arranged on two sides of a hook portion of the lock hook 8, the display lamps 812 are electrically connected with the coil 807, and a wire arrangement mode of the coil 807 and the display lamps 812 is that a power wire is connected with the coil 807 and the display lamps 812 from the inside of the lock hook 8.

The sliding groove 805 is adapted to the curved shape of the slider 806 and the curved shape of the hook portion of the latch hook 8. The sliding block 806 can enhance the locking effect on the bucket connecting shaft 11 after sliding out, and prevent the bucket connecting shaft 11 from sliding out of the lock hook 8.

Compression spring 802 is always in a compressed state. Representing the compression spring 802 in the initial state, the compression spring 802 is compressed, the compression spring 802 has a resilience to the piston inner cylinder 803, the compression spring 802 can continue to be compressed, and the compression spring 802 can restore the piston inner cylinder 803 and the hydraulic rod 804 to the initial compression state when the bucket connecting shaft 11 is separated from the lock hook 8.

The application method (working principle) of the first embodiment of the invention is as follows:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, when the quick connector of the excavator connects the excavator bucket 10 and the excavator arm 12, the main body 1 is hinged with the two excavator arms 12 through the two excavator arm connecting shafts 3, one bucket connecting shaft 11 of the excavator bucket 10 is clamped at the tiger mouth 4, the other bucket connecting shaft 11 of the excavator bucket 10 is arranged at the hook part of the lock hook 8, at this time, the hydraulic device 6 is started, the inner cylinder of the hydraulic device 6 pushes the lock hook 8 to rotate around the second supporting shaft 7, when the lock hook 8 is tightly attached to the other bucket connecting shaft 11 of the excavator bucket 10, the hydraulic rod 804 of the lock hook 8 is extruded by the bucket connecting shaft 11, the hydraulic rod 804 drives the piston inner cylinder 803 to slide towards the bottom end of the installation groove 801, transmission liquid in the installation groove 801 enters the sliding groove 805 through the connecting hole 809a, and the sliding block 806 in the sliding groove 805 is pushed by the transmission liquid to slide out, and after the sliding block 806 slides out, the locking effect on the bucket connecting shaft 11 can be enhanced, and the sliding of the bucket connecting shaft 11 is prevented from sliding out of the lock hook 8;

when the lock hook 8 is fastened to the bucket connecting shaft 11, the hydraulic rod 804 is pushed to a certain position, the slide block 806 slides out a maximum distance, and at this time, the permanent magnet 808 on the slide block 806 passes through the coil 807, so that the coil 807 generates a current, and at the same time, the display lamp 812 connected in series with the coil 807 emits a light signal, so that the operator stops the operation of the hydraulic device 6 after seeing the signal. In this way, after the lock hook 8 locks the bucket connecting shaft 11, a signal is sent to stop the operation of the hydraulic device 6, so that the phenomenon that the operation of the hydraulic device 6 is stopped when the lock hook 8 is unlocked to the bucket connecting shaft 11 due to the line of sight of an operator, and finally the bucket 10 falls down to cause accidents is avoided.

Example two

In the first embodiment, the slider 806 drives the permanent magnet 808 to slide in the sliding groove 805, and the slider 806 only passes through the coil 807 once in the process of locking the bucket connecting shaft 11, and the passing time is short, so that the coil 807 can only generate an instantaneous current once, and the display lamp 812 connected in series with the coil 807 can only flash once, so that when the working environment is poor and there is large smoke or dust, the operator may not see the flashing display lamp 12, and the first embodiment is further improved with respect to the phenomenon.

Referring to fig. 1, 2, 3, 4 and 5, connecting holes 809b are formed on two sides of a mounting hole 813 of a lock hook 8, the connecting holes 809b on two sides of the mounting hole 813 are located on the side far away from the hook part of the lock hook 8, one end of each connecting hole 809b is communicated with the bottom end of the corresponding mounting groove 801, the other end of each connecting hole 809b is communicated with the corresponding mounting hole 813, a pressure release valve is fixedly mounted at the position where each connecting hole 809b is communicated with the corresponding mounting groove 801, the pressure release valve on the side wall of the corresponding mounting groove 801 is a two-way pressure release valve, limiting rods 810 are slidably mounted in the corresponding connecting holes 809b on two sides of the corresponding mounting hole 813, limiting rods 810 on two sides of the corresponding mounting hole 813 are fixedly connected to two ends of a reset spring 814, a control switch 815 is fixedly mounted on the end face of one limiting rod 810, the control switch 815 is located in the reset spring 814, oil supply to the hydraulic device 6 can be immediately stopped by pressing the control switch 815, and oil supply can be continued when the control switch 815 is not pressed.

The length of the stop lever 810 is greater than the width of the mounting hole 813. The limiting rod 810 is prevented from sliding off when sliding off, and the limiting rod 810 abuts against the side end of the installation hole 813 of the lock hook 8 after sliding off, so that the limiting effect is achieved.

The driving fluid pushed out of the mounting groove 801 and the driving fluid entering the slider 806 and the connection hole 809b are calculated to push the slider 806 and the stopper 810 to the specified positions.

The application method (working principle) of the second embodiment of the invention is as follows:

referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6 and fig. 7, after an operator starts the hydraulic device 6 to push the latch hook 8 to fix the bucket connecting shaft 11, if the operator does not close the hydraulic device 6 in time, the hydraulic device 6 continues to push the latch hook 8, at this time, the bucket connecting shaft 11 continues to press the hydraulic rod 804, since the sliding block 806 can not continue to move outwards, the transmission liquid in the mounting groove 801 continues to be extruded by the piston inner cylinder 803, the pressure of the transmission liquid can continue to increase, at this time, the pressure of the transmission liquid reaches the pressure relief valve, the transmission liquid in the mounting groove 801 passes through the pressure relief valve in the connecting hole 809b, and enters the connecting holes 809b at two sides of the mounting hole 813, the transmission liquid in the connecting hole 809b pushes the limit rod 810 to slide, the limit rods 810 at two sides move relatively, the limit rods 810 at two sides squeeze the reset spring 814, at this time, the control switch 815 is pressed, the control switch 815 stops the oil supply to the latch hook of the hydraulic device 6 immediately, the hydraulic device 6 stops moving, the latch hook 8 stops moving immediately, thereby avoiding the phenomenon that the hinge joint 8 is pushed by the bucket connecting shaft 8, the hinge 8 is continuously worn or the hinge 8 is deformed, and the hinge joint 9 is deformed, thereby the hinge joint of the bucket 8 is continued, and the life of the hinge joint 9 is prolonged.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a quick connector of excavator swing bucket, includes latch hook (8), its characterized in that: mounting holes (813) are formed in the middle positions of the lock hooks (8), mounting grooves (801) are formed in the two sides of the lock hooks (8) close to the positions of the hooks, compression springs (802) are placed in the mounting grooves (801), piston inner cylinders (803) are slidably mounted in the mounting grooves (801), hydraulic rods (804) are fixedly mounted in the middle positions of the upper ends of the piston inner cylinders (803), sliding grooves (805) are formed in the top ends of the hook portions of the lock hooks (8), the sliding grooves (805) are communicated with connecting holes (809 a) formed in the bottom ends of the mounting grooves (801), transmission liquid is filled in the sliding grooves (805) and is filled in the mounting grooves (801), sliding blocks (806) are fixedly sleeved on the side end faces of the sliding blocks (806) close to the bottom ends, display lamps (812) are fixedly mounted on the two sides of the hook portions of the lock hooks (8), and the display lamps (807) are electrically connected with the coils (807).

2. The quick connector for an excavator swing bucket of claim 1 wherein: the compression spring (802) is always in a compressed state.

3. The quick connector for an excavator swing bucket of claim 1 wherein: the sliding groove (805) is matched with the bending shape of the sliding block (806) and the bending shape of the hook part of the locking hook (8).

4. The quick connector for an excavator swing bucket of claim 1 wherein: connecting holes (809 b) are formed in two sides of a mounting hole (813) of the lock hook (8), the connecting holes (809 b) in two sides of the mounting hole (813) are located at two ends away from a hook portion side of the lock hook (8), one end of the connecting holes (809 b) is communicated with the bottom end of the mounting groove (801), the other end of the connecting holes (809 b) is communicated with the mounting hole (813), a pressure release valve is fixedly mounted at the communicating position of the connecting holes (809 b) and the mounting groove (801), a limit rod (810) is mounted in the connecting holes (809 b) in two sides of the mounting hole (813), and the limit rods (810) in two sides of the mounting hole (813) are fixedly connected to two ends of a reset spring (814) respectively.

5. The quick connector for an excavator swing bucket of claim 4 wherein: the length of the limiting rod (810) is larger than the width of the mounting hole (813).