Novel quick connector

Abstract

The utility model discloses a novel quick connector, and relates to the field of connectors. The device comprises an upper rotating head, the upper rotating head is connected with a clamping mechanism through a bolt, the clamping mechanism comprises a supporting frame, a retainer is arranged on the rear side of the supporting frame, a screw is in threaded connection with the interior of the retainer through a nut, the front side of the screw is rotationally connected with the supporting frame, and the clamping mechanism is arranged on the supporting frame. According to the utility model, through the arrangement of the screw rod, the nut and the clamping mechanism, along with the movement of the nut, the two positioning pins are driven by the retainer to extend out, and the extension of the positioning pins further pushes the locking process, so that the two main parts of the connector can be tightly combined; when the inclined surface on the positioning pin is in contact with the clamping plate on the lower rotating head, locking is realized, the accessory can be quickly and conveniently disassembled from and assembled on an excavator or other heavy machinery, and the time and the labor required for replacing the accessory are greatly reduced.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a novel quick connector. Background Art

[0002] With the increase in the number of construction machinery in the market, there are more and more occasions where construction machinery replaces human labor, and the variety of front-end accessories of excavators is extremely rich. From traditional buckets and breakers to hydraulic shears, vibratory rammers, hydraulic grabs, pile drivers, etc., in actual operation, a construction machine is often equipped with a bucket, breaker, vibratory rammer and other accessories at the same time, and the accessories need to be replaced frequently during work.

[0003] The inventor of this application found that there are the following problems in the practical use process:

[0004] The current new type of quick connector relies entirely on manual operation when replacing accessories. After the accessories are replaced, they need to be reinstalled and reset. This process is not only inefficient, but also extremely labor-intensive, and often requires the cooperation of multiple workers to complete it successfully.

[0005] Therefore, it is necessary to provide a new type of quick connector to solve the above technical problems. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a new type of quick connector in view of the above-mentioned defects of the prior art.

[0007] To achieve the above-mentioned purpose, the technical solution of the utility model is: a new type of quick connector, including an upper rotating head, the upper rotating head is connected with a clamping mechanism through bolts, the clamping mechanism includes a support frame, a retaining frame is arranged at the rear side of the support frame, a screw rod is threadedly connected to the inside of the retaining frame through a nut, the front side of the screw rod is rotatably connected to the support frame, and the support frame is sleeved with the bolt through a fixing hole;

[0008] Both sides of the retaining frame are clamped with positioning pins through fixing pins, and both sides of the support frame are provided with through holes. The positioning pins and the through holes are slidably connected, and the front end of the positioning pin is provided with an inclined surface, which abuts against a clamping plate.

[0009] By adopting the above technical solution, the upper rotating head as the main part of the connector can be connected to the engineering machinery, the bolts are used to connect the upper rotating head with the clamping mechanism, the clamping mechanism is responsible for realizing the locking and unlocking between the upper rotating head and the lower rotating head, the support frame provides structural support for the clamping mechanism, so that the clamping mechanism can be connected to the upper rotating head, the inside of the retaining frame is threadedly connected with a screw through a nut, which can realize the locking and unlocking functions of the clamping mechanism, the nut and the screw together constitute a threaded mechanism for controlling the extension and retraction of the locating pin, the fixing hole is used to fix the retaining frame with the upper rotating head through the bolt, the locating pin is clamped on both sides of the retaining frame through the fixing pin, the locating pin is extended or retracted during operation to lock or release the lower rotating head, the through hole is located on both sides of the support frame, and is slidably connected with the locating pin, allowing the locating pin to move forward and backward during the locking and unlocking process, the inclined surface is located at the front end of the locating pin, and contacts with the clamping plate on the lower rotating head, so that the upper rotating head can be connected and released with the lower rotating head, so that the engineering machinery or other heavy equipment can quickly and conveniently replace different accessories.

[0010] It is further configured that the front end of the screw is fixedly connected to a limiting ring, the front side of the limiting ring abuts against a first gasket, the front side of the first gasket abuts against a support frame, the rear end of the screw is fixedly connected to a rotating block, and the rotating block is rotatably connected to the upper rotating head.

[0011] By adopting the above technical solution, the limit ring can limit the movement range of the screw to prevent it from moving away from the predetermined position. The first gasket provides a smooth contact surface to reduce the friction and wear caused by the rotation of the screw. The rotating block allows the screw to maintain a smooth connection with the upper rotating head during rotation, ensuring the efficient and reliable operation of the quick connector.

[0012] It is further provided that a spring is provided between the support frame and the retaining frame, two springs are provided, and the two springs and the positioning pin are provided correspondingly.

[0013] By adopting the above technical solution, the spring can provide the necessary elastic force to assist the movement of the positioning pin, thereby providing additional stability.

[0014] It is further provided that a hook is fixedly connected to the rear side of the upper rotating head, and two hooks are provided, and the two hooks are arranged in a mirror image.

[0015] By adopting the above technical solution, the hook can provide a joint point for connecting the upper rotating head and the lower rotating head, thereby reducing the risk of accidental falling off during operation and enhancing safety in use.

[0016] It is further provided that the interior of the hook is connected with a lower rotating head via a cross bar, and connecting holes for connecting accessories are provided around the lower rotating head.

[0017] By adopting the above technical solution, the cross bar provides a solid connecting axis between the upper rotating head and the lower rotating head, ensuring that the two can remain stably fixed. The lower rotating head is used to directly connect various attachments, allowing it to be compatible with different types of attachments. The connecting holes are used to connect different attachments, providing multiple fixing points for the attachments, ensuring the stability and safety of the connection.

[0018] It is further arranged that the clamping plate is clamped with the lower rotating head via a clamping block.

[0019] By adopting the above technical solution, the clamping plate is clamped on the lower rotating head through the clamping block to cooperate with the positioning pin to achieve connection or unlocking.

[0020] It is further provided that a connecting plate for connecting to a driver is fixedly connected to the top of the upper rotating head, and a mounting hole is provided on the connecting plate.

[0021] By adopting the above technical solution, the connecting plate is located on the top of the upper rotating head and is used to connect the power output part of the engineering machinery. The mounting hole enables the connecting plate to be firmly connected to the main body of the engineering machinery by bolts or other fixing devices, providing a simple and effective fixing point to ensure the safety and stability of the connection.

[0022] It is further arranged that there are two mounting holes, and the two mounting holes are arranged obliquely.

[0023] By adopting the above technical solution, the mounting hole can better disperse the stress during connection and improve the stability and strength of the connection.

[0024] It is further arranged that two connecting plates are provided, and the two connecting plates are arranged in a mirror image.

[0025] By adopting the above technical solution, the two connecting plates increase the connection points between the connector and the engineering machinery body, thereby improving the connection strength.

[0026] It is further provided that the nut and the retaining frame are connected by interference fit.

[0027] By adopting the above technical solution, the nut is connected to the retaining frame by interference fit, which ensures that the nut will not loosen or fall off during operation, while also allowing the nut to move along the screw to control the extension and retraction of the positioning pin.

[0028] Compared with the related art, the novel quick connector provided by the utility model has the following beneficial effects:

[0029] The utility model provides a novel quick connector, which is provided with a screw rod, a nut and a clamping mechanism. As the nut moves, two locating pins are driven to extend through a retaining frame, and the extension of the locating pins further promotes the locking process, ensuring that the two main components of the connector can be tightly combined. When the inclined surface on the locating pin contacts the clamping plate on the lower rotating head, locking is achieved, so that the upper and lower rotating heads are firmly connected together, realizing a quick connection device, and at the same time, the attachment can be quickly and conveniently removed from the excavator or other heavy machinery, greatly reducing the time and labor required for replacing the attachments.

[0030] The utility model provides a novel quick connector, which is provided with a screw rod and a nut, and when a socket wrench is used to rotate the exposed hexagonal head on the screw rod clockwise, this action drives the screw rod to rotate, thereby guiding the nut to move outward along the screw rod. The direct benefit of this process is to activate the locking mechanism of the connector.

[0031] The utility model provides a novel quick connector, which ensures stable docking between the upper rotating head and the lower rotating head by setting a cross bar and a hook, and using the cross bar to connect the hook and the lower rotating head. The cross bar provides necessary structural support, and the two hooks reduce the extra weight of the traditional card plate connection, while still maintaining a high connection strength, ensuring that during operation, whether it is excavation or lifting and other actions, the upper and lower rotating heads can maintain a stable connection state, maintaining the continuity and stability of the equipment in heavy operations, thereby improving work efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic structural diagram of a preferred embodiment of a novel quick connector provided by the utility model;

[0033] Figure 2 It is an internal cross-sectional view of the utility model;

[0034] Figure 3 It is an exploded view of the rotating head of the utility model;

[0035] Figure 4 It is a three-dimensional schematic diagram of the screw of the utility model;

[0036] Figure 5 It is a partial cutaway schematic diagram of the engaging mechanism of the utility model.

[0037] Numbers in the figure: 1. upper rotating head; 2. engaging mechanism; 201. retaining frame; 202. nut; 203. screw; 204. supporting frame; 205. fixing hole; 3. bolt; 4. fixing pin; 5. positioning pin; 6. through hole; 7. inclined surface; 8. limiting ring; 9. first gasket; 10. rotating block; 11. spring; 12. mounting hole; 13. hook; 14. cross bar; 15. lower rotating head; 16. connecting hole; 17. connecting plate; 18. clamping block; 19. clamping plate. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the accompanying drawings, in which typical embodiments of the present invention are shown.

[0039] Embodiment 1:

[0040] like Figure 1-5 As shown, a new type of quick connector of the utility model comprises an upper rotating head 1, the upper rotating head 1 is connected with a clamping mechanism 2 through a bolt 3, the clamping mechanism 2 comprises a support frame 204, a retaining frame 201 is arranged at the rear side of the support frame 204, a screw rod 203 is threadedly connected to the inside of the retaining frame 201 through a nut 202, the front side of the screw rod 203 is rotatably connected to the support frame 204, and the support frame 204 is sleeved with the bolt 3 through a fixing hole 205;

[0041] The inside of both sides of the retaining frame 201 is engaged with a positioning pin 5 through a fixing pin 4, and the inside of both sides of the support frame 204 is provided with a through hole 6, the positioning pin 5 and the through hole 6 are slidably connected, and the front end of the positioning pin 5 is provided with an inclined surface 7, and the inclined surface 7 is against the clamping plate 19. The upper rotating head 1 is the main part of the connector and can be connected to the engineering machinery. It provides a fixed point for installing the clamping mechanism 2 and the connection with the lower rotating head 15. The use of the upper rotating head 1 can ensure a stable connection between the connector and the engineering machinery, thereby improving work efficiency and safety. The bolt 3 It is used to connect the upper rotating head 1 and the locking mechanism 2 together, ensuring a strong connection between these components and facilitating disassembly when needed. The locking mechanism 2 is responsible for realizing the locking and unlocking between the upper rotating head 1 and the lower rotating head 15, affecting the operating efficiency and safety of the connector. The support frame 204 provides structural support for the locking mechanism 2, so that the locking mechanism 2 can be connected to the upper rotating head 1, ensuring the stability of the entire mechanism. The interior of the retaining frame 201 is threadedly connected with a screw 203 through a nut 202, which can realize the locking and unlocking of the locking mechanism 2 The nut 202 and the screw rod 203 together form a threaded mechanism for controlling the extension and retraction of the locating pin 5. By rotating the screw rod 203, the position of the locating pin 5 can be accurately controlled, thereby realizing the locking and unlocking of the connector. The fixing hole 205 is used to fix the holder 201 to the upper rotating head 1 through the bolt 3 to ensure the stability of the entire mechanism. The locating pin 5 is engaged with both sides of the holder 201 through the fixing pin 4. The locating pin 5 is extended or retracted during operation to lock or release the lower rotating head. 15, the inclined surface 7 of the locating pin 5 is in contact with the card plate 19 to realize a smooth and firm locking mechanism. The through hole 6 is located on both sides of the support frame 204 and is slidably connected with the locating pin 5, allowing the locating pin 5 to move forward and backward during the locking and unlocking process to realize the unlocking function. The inclined surface 7 is located at the front end of the locating pin 5 and is in contact with the card plate 19 on the lower rotating head 15, so that the upper rotating head 1 can be connected and released with the lower rotating head 15, reducing wear and ensuring the reliability of the connection, so that construction machinery or other heavy equipment can quickly and conveniently replace different accessories.

[0042] like Figure 4As shown, the front end of the screw 203 is fixedly connected to a limit ring 8, the front side of the limit ring 8 abuts against a first gasket 9, the front side of the first gasket 9 abuts against the support frame 204, and the rear end of the screw 203 is fixedly connected to a rotating block 10, the rotating block 10 is rotatably connected to the upper rotating head 1, the limit ring 8 can limit the movement range of the screw 203 to prevent it from deviating from the predetermined position, thereby increasing the stability and safety of the mechanism and ensuring that the screw 203 maintains the correct position during operation, the first gasket 9 provides a smooth contact surface, reduces the friction and wear caused by the rotation of the screw 203, extends the service life of the component, and ensures the smoothness of operation, the rotating block 10 allows the screw 203 to maintain a smooth connection with the upper rotating head 1 during rotation, and allows the screw 203 to not be subject to excessive resistance during rotation, thereby making the operation smoother and ensuring the efficient and reliable operation of the quick connector.

[0043] like Figure 2 As shown, a spring 11 is arranged between the support frame 204 and the retaining frame 201. Two springs 11 are arranged corresponding to the two springs 11 and the positioning pin 5. The spring 11 can provide necessary elastic force to assist the movement of the positioning pin 5. When the screw 203 rotates to move the positioning pin 5, the spring 11 helps the positioning pin 5 and the retaining frame 201 to extend or retract smoothly through its elastic action, thereby providing additional stability.

[0044] like Figure 3 As shown, the card plate 19 is engaged with the lower rotating head 15 through the card block 18, and the card plate 19 is clamped on the lower rotating head 15 through the card block 18 to cooperate with the positioning pin 5 to achieve connection or unlocking. The card plate 19 and the positioning pin 5 provide a simple and effective way to lock or unlock the attachment.

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, a connecting plate 17 for connecting a driver is fixedly connected to the top of the upper rotating head 1, and a mounting hole 12 is provided on the connecting plate 17. The connecting plate 17 is located at the top of the upper rotating head 1 and is used to connect the power output part of the engineering machinery. It can provide a solid interface for tightly connecting the quick connector with the main body of the engineering machinery. The mounting hole 12 allows the connecting plate 17 to be firmly connected to the main body of the engineering machinery by bolts or other fixing devices, providing a strong interface for ensuring a stable connection between the upper rotating head 1 and the main body of the engineering machinery, and providing a simple and effective fixing point to ensure the safety and stability of the connection.

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, there are two mounting holes 12, which are arranged obliquely. The mounting holes 12 can better disperse the stress during connection, improve the stability and strength of the connection, and the obliquely arranged mounting holes 12 can be stably fixed to the connection points on the main body of the engineering machinery, and can more evenly disperse the stress, thereby reducing the risk of loosening due to vibration or heavy load.

[0047] like Figure 2 , Figure 3 and Figure 5 As shown, the nut 202 and the retaining frame 201 are connected by an interference fit, and the nut 202 is connected to the retaining frame 201 by an interference fit, which ensures that the nut 202 will not loosen or fall off during operation, while also allowing the nut to move along the screw rod 203 to control the extension and retraction of the positioning pin 5, providing a firm fixing point, allowing the nut 202 to move smoothly in the retaining frame 201 without falling off, thereby ensuring the reliability and stability of the entire locking mechanism.

[0048] like Figure 1 , Figure 2 and Figure 3 As shown, there are two connecting plates 17, which are arranged in a mirror image. The two connecting plates 17 increase the connection points between the connector and the main body of the engineering machinery and improve the connection strength. The two mirror-arranged connecting plates 17 can evenly distribute the stress and load during connection and reduce the stress concentration at a single connection point, thereby enhancing the overall stability and durability.

[0049] Embodiment 2:

[0050] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, on the basis of embodiment 1, the utility model provides a technical solution: the hook 13 is internally connected to a lower rotating head 15 through a cross bar 14, and connecting holes 16 for connecting accessories are provided around the lower rotating head 15. The cross bar 14 provides a solid connecting axis between the upper rotating head 1 and the lower rotating head 15 to ensure that the two can remain stably fixed. The lower rotating head 15 is used to directly connect various accessories, allowing it to be compatible with different types of accessories. The connecting hole 16 is used to connect different accessories, providing multiple fixing points for the accessories to ensure the stability and safety of the connection. The cross bar 14 makes the connection and separation operations simpler and more intuitive, reducing the complexity of operation. The connecting hole 16 provides multi-point fixation to ensure that the accessories are stable during operation, thereby improving the safety of the overall operation. The design of the lower rotating head 15 enables it to adapt to a variety of accessories, increasing the flexibility of operation.

[0051] like Figure 3As shown, the rear side of the upper rotating head 1 is fixedly connected with a hook 13, and two hooks 13 are provided. The two hooks 13 are arranged in a mirror image, and the hook 13 can provide a joint point for connecting the upper rotating head 1 and the lower rotating head 15. The hook 13 provides a stable and reliable connection point between the upper rotating head 1 and the lower rotating head 15 to ensure that the two remain tightly combined during operation. The mirror image arrangement of the two hooks 13 allows them to evenly disperse the force during connection, increase the stability of the connection, reduce wear, reduce the risk of accidental falling off during operation, and enhance safety of use.

[0052] During implementation, first chamfer the sides of the nut 202, and clamp it in the square groove in the middle of the retaining frame 201. Use a socket wrench to rotate the exposed hexagonal head of the screw 203 clockwise to drive the screw 203 to rotate. At this time, the nut 202 moves outward, and drives the two positioning pins 5 to extend through the retaining frame 201. When the inclined surface on the positioning pin 5 contacts the inclined surface on the clamping plate 19 on the lower rotating head 15, it is locked, and the upper and lower rotating heads are firmly connected together. At this time, the excavator can work normally. When it is necessary to replace the attachment, rotate the hexagonal nut counterclockwise, the two positioning pins 5 move inward, and loosen the lock. At this time, the upper rotating head 1 rotates upward around the right cross bar 14 of the lower rotating head 15, and the upper and lower rotating heads are separated. The attachment can be removed, and the above operation is repeated when replacing new attachments.

[0053] The advantages of this technical solution in practical applications include but are not limited to the following:

[0054] 1. Through the linkage design of the screw, nut and locking mechanism, the fast and accurate locking and unlocking functions are realized, which greatly improves the efficiency of accessory replacement and significantly reduces the labor intensity of operators;

[0055] 2. The nut is driven to move by rotating the screw, which enables a simple and efficient locking mechanism, making the installation and disassembly process of the attachment more convenient and smooth;

[0056] 3. The crossbar and hook structure ensures a stable connection between the upper rotating head and the lower rotating head and reduces the overall weight.

[0057] 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 new type of quick connector, characterized by: The invention comprises an upper rotating head (1), wherein the upper rotating head (1) is connected to a clamping mechanism (2) via a bolt (3), wherein the clamping mechanism (2) comprises a support frame (204), wherein the interior of the support frame (204) is slidably connected to a retaining frame (201), wherein the interior of the retaining frame (201) is threadedly connected to a screw rod (203) via a nut (202), wherein the front side of the screw rod (203) is rotatably connected to the support frame (204), and the support frame (204) is sleeved with the bolt (3) via a fixing hole (205); Both sides of the retaining frame (201) are internally engaged with positioning pins (5) through fixing pins (4), and both sides of the support frame (204) are internally provided with through holes (6), the positioning pins (5) and the through holes (6) are slidably connected, and the front end of the positioning pin (5) is provided with an inclined surface (7), and the inclined surface (7) is in contact with a clamping plate (19).

2. A novel quick connector according to claim 1, characterized in that: The front end of the screw rod (203) is fixedly connected to a limit ring (8), the front side of the limit ring (8) is abutted against a first gasket (9), the front side of the first gasket (9) is abutted against a support frame (204), and the rear end of the screw rod (203) is fixedly connected to a rotating block (10), and the rotating block (10) is rotatably connected to the upper rotating head (1).

3. A novel quick connector according to claim 1, characterized in that: A spring (11) is arranged between the support frame (204) and the retaining frame (201), two springs (11) are arranged, and the two springs (11) and the positioning pin (5) are arranged correspondingly.

4. A novel quick connector according to claim 1, characterized in that: A hook (13) is fixedly connected to the rear side of the upper rotating head (1), and two hooks (13) are provided, and the two hooks (13) are arranged in a mirror image.

5. A novel quick connector according to claim 4, characterized in that: The hook (13) is connected to a lower rotating head (15) via a cross bar (14), and connecting holes (16) for connecting accessories are provided around the lower rotating head (15).

6. A novel quick connector according to claim 1, characterized in that: The clamping plate (19) is clamped with the lower rotating head (15) via the clamping block (18).

7. A novel quick connector according to claim 1, characterized in that: A connecting plate (17) for connecting to a driver is fixedly connected to the top of the upper rotating head (1), and a mounting hole (12) is provided on the connecting plate (17).

8. A novel quick connector according to claim 7, characterized in that: Two mounting holes (12) are provided, and the two mounting holes (12) are arranged obliquely.

9. A novel quick connector according to claim 7, characterized in that: Two connecting plates (17) are provided, and the two connecting plates (17) are arranged in a mirror image.

10. A novel quick connector according to claim 1, characterized in that: The nut (202) and the retaining frame (201) are connected by interference fit.

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