CN211057905U - Double-lock type quick connector and excavator - Google Patents
Double-lock type quick connector and excavator Download PDFInfo
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- CN211057905U CN211057905U CN201921794798.6U CN201921794798U CN211057905U CN 211057905 U CN211057905 U CN 211057905U CN 201921794798 U CN201921794798 U CN 201921794798U CN 211057905 U CN211057905 U CN 211057905U
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- 210000000078 claw Anatomy 0.000 claims abstract description 118
- 230000007246 mechanism Effects 0.000 claims abstract description 26
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- 230000005484 gravity Effects 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims description 4
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 22
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000005540 biological transmission Effects 0.000 description 1
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- 230000014509 gene expression Effects 0.000 description 1
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Abstract
The utility model discloses a double-lock type quick connector and an excavator, which comprises a shell, a movable claw, a locking mechanism and an oil cylinder; the locking mechanism comprises a locking rod and a secondary locking claw which are connected with each other, the locking mechanism is hinged to the shell through a first hinge point and can rotate around the first hinge point under the action of self gravity, the first hinge point is close to the fixed claw, the first hinge point is used as a lever supporting point, and the gravity moment of the secondary locking claw is far greater than that of the locking rod; the locking rod is provided with a locking structure for locking the movable claw; the locking mechanism is designed by adopting a lever principle and a dead point position, and is automatically unlocked and locked by gravity, along with the rising and falling of the locking rod, the unlocking and locking of the movable hook claw are completed, the release and the holding of the first connecting pin shaft of the operation device are realized, the release and the holding of the second connecting pin shaft of the operation device by the secondary locking hook claw are realized, and the aim of double shaft locking is achieved.
Description
Technical Field
The utility model belongs to the technical field of engineering machine tool, concretely relates to double-lock formula quick connector and excavator.
Background
An excavator is a most commonly used construction machine for daily construction, and has various operation functions. The multifunctional machine tool is also more and more widely applied, the quick connector is used as a connecting machine tool of the excavator and the operation devices (such as a bucket, a breaking hammer and a hydraulic shear), the quick switching and installation of various operation devices are realized, the use range of the excavator is expanded, the waste of time and manpower caused by replacing an accessory and disassembling a pin shaft is saved, and the working efficiency is improved. The most common quick connector at present is a hydraulic quick connector, which is connected and disconnected with the accessory by a locking mechanism driven by a hydraulic oil cylinder.
At present, a fixed claw of a common hydraulic quick connector hooks a second connecting pin shaft of an operation device, the holding range is limited, the holding performance is not strong, the second connecting pin shaft of the operation device is in a semi-exposed state, a hydraulic cylinder is operated to realize the connection of a movable claw and the operation device, and an operator needs to manually insert a safety bolt from the side surface so as to ensure the locking of the movable claw and prevent the operation device from falling off due to misoperation in the operation process or failure of a hydraulic system. However, due to manual insertion of the bolt, accidents may occur because the operator forgets the insertion of the bolt.
The prior art has the following defects: the first connecting pin shaft of the operation device has poor cohesion, the second connecting pin shaft of the operation device has limited cohesion range and is in a semi-exposed state, so that the shaking amount of the action device is large, the action device is easy to loosen and fall off, and potential safety hazards exist. Meanwhile, the manual bolt may cause accidents because an operator forgets the bolt.
SUMMERY OF THE UTILITY MODEL
The purpose is as follows: in order to overcome the defects in the prior art, the utility model provides a double-locking quick connector and an excavator.
The technical scheme is as follows: in order to solve the technical problem, the utility model discloses a technical scheme does:
a double-locking type quick connector comprises a shell, a movable claw, a locking mechanism and an oil cylinder;
the shell is provided with a first connecting pin shaft stopping part of the operation device for clamping a first connecting pin shaft of the operation device under the action of matching with the movable hook claw and a fixed hook claw for clamping a second connecting pin shaft of the operation device under the action of matching with the secondary locking hook claw; a second connecting pin shaft stopping part of the operation device is arranged on the inner side of the fixed claw;
the locking mechanism comprises a locking rod and a secondary locking claw which are connected with each other, and the locking rod and the secondary locking claw are fixedly connected or are in an integrated structure; the locking mechanism is hinged to the shell through a first hinge point and can rotate around the first hinge point under the action of self gravity, the first hinge point is close to the fixed claw, the first hinge point is taken as a lever supporting point, and the gravity moment of the secondary locking claw is greater than that of the locking rod; the locking end of the locking rod is provided with a locking structure for locking the movable claw;
the middle part of the movable claw is hinged and mounted on the shell through a second hinge point and can rotate around the second hinge point to be matched with a stopping part of a first connecting pin shaft of the operation device to clamp the first connecting pin shaft of the operation device; the movable claw is provided with a stopping structure close to the end of the locking rod and used for being matched with the locking structure of the locking rod to be meshed at a set position;
one of the cylinder body and the piston rod of the oil cylinder is hinged on the shell through the first hinge point, and the other of the cylinder body and the piston rod is hinged with the movable claw through a third hinge point and used for driving the oil cylinder to stretch and drive the movable claw to rotate around the second hinge point;
when the locking structure of the locking rod is meshed with the locking structure of the movable claw, the locking rod is positioned on a connecting line of the first hinge point and the third hinge point of the oil cylinder.
In some embodiments, the stopping position of the first connecting pin shaft of the working device adopts a circular arc transition structure.
In some embodiments, the cylinder end of the cylinder is hinged to the housing through the first hinge point, and the piston rod end is hinged to the movable claw through the third hinge point.
In some embodiments, a portion of the movable claw close to the stop of the first connecting pin shaft is in a special-shaped structure.
In some embodiments, the locking structure of the locking end of the locking lever and the stop structure of the moveable claw are cooperatively stepped.
In other embodiments, the locking structure of the locking rod and the stopping structure of the movable claw are in a matched sawtooth shape.
According to another aspect of the utility model, still provide an excavator, include double-lock formula quick connector.
Has the advantages that: the utility model provides a double-lock formula quick connector and excavator has following advantage: the locking mechanism is designed by adopting a lever principle and a dead point position, and is automatically unlocked and locked by gravity, along with the rising and falling of the locking rod, the unlocking and locking of the movable hook claw are completed, the release and the holding of the first connecting pin shaft of the operation device are realized, and the release and the holding of the second connecting pin shaft of the operation device are realized by the secondary locking hook claw simultaneously, so that the aim of double locking of the counter shaft is fulfilled, and the reliability of the quick connector is improved. And the locking mechanism can be meshed with the movable claw, and simultaneously, the locking of the second connecting pin shaft of the operation device is realized, so that the automatic locking function and double locking are realized. A locking mode of manually inserting a safety pin in a transmission mode is cancelled, full-automatic hydraulic driving locking is achieved, the movable claw is driven to lock the first connecting pin shaft of the operation device, meanwhile, locking is conducted on the second connecting pin shaft of the operation device, the purpose of double locking is achieved, and reliability of the quick connector is improved.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a dual lock quick connector;
FIG. 2 is a schematic view of a housing structure in the dual lock quick connector of an embodiment;
FIG. 3 is a schematic view of the embodiment of the dual-lock quick connector showing the position of movement when the housing is unlocked;
in the figure: 1. a housing; 1-1, a first connecting pin shaft stopping part of the operation device; 1-2, a second connecting pin shaft stopping part of the operation device; a first hinge point 1-3, a second hinge point 1-4, a third hinge point 42; a fixed claw 5;
a first connecting pin shaft 6-1 and a second connecting pin shaft 6-2;
2. a movable hook claw; 2-1, a stop structure;
3. a locking mechanism; 3-1, locking the lever; 3-1-1, a locking structure; 3-2, secondary locking claw; 4. and an oil cylinder.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 is a schematic structural view of a double-lock type quick connector according to an embodiment, fig. 2 is a schematic structural view of a housing in the double-lock type quick connector according to the embodiment, and as shown in fig. 1 and fig. 2, the double-lock type quick connector includes a housing 1, a movable claw 2, a locking mechanism 3, and an oil cylinder 4;
the shell 1 is provided with an operation device first connecting pin shaft stopping part 1-1 which is used for clamping an operation device first connecting pin shaft 6-1 under the action of being matched with the movable hook claw 2 and a fixed hook claw 5 which is used for clamping an operation device second connecting pin shaft 6-2 under the action of being matched with the secondary locking hook claw 3-2; the inner side of the fixed claw 5 is provided with a stopping part 1-2 of a second connecting pin shaft of the operation device;
the locking mechanism 3 comprises a locking rod 3-1 and a secondary locking claw 3-2 which are connected with each other, and the locking rod 3-1 and the secondary locking claw 3-2 are fixedly connected or are in an integrated structure; the locking mechanism 3 is hinged to the shell 1 through a first hinge point 1-3 and can rotate around the first hinge point 1-3 under the action of self gravity, the first hinge point 1-3 is close to the fixed claw 5, the first hinge point 1-3 is taken as a lever supporting point, and the gravity moment of the secondary locking claw 3-2 is greater than that of the locking rod; the locking rod 3-1 comprises a connecting end and a locking end, the connecting end of the locking rod 3-1 is fixedly connected with the secondary locking claw 3-2, and the locking end of the locking rod 3-1 is provided with a locking structure 3-1-1 for locking the movable claw 2;
in some embodiments, the connecting end of the locking lever 3-1 is located at the first hinge point 1-3.
The middle part of the movable claw 2 is hinged and installed on the shell 1 through a second hinge point 1-4 and can rotate around the second hinge point 1-4 to be matched with a stopping part 1-1 of a first connecting pin shaft of the operation device to clamp the first connecting pin shaft 6-1 of the operation device; a stop structure 2-1 which is matched with a locking structure 3-1-1 at the locking end of the locking rod and is engaged at a set position is arranged at the end, close to the locking rod, of the movable claw 2;
one of the cylinder body and the piston rod of the oil cylinder 4 is hinged and installed on the shell 1 through the first hinge point 1-3, and the other of the cylinder body and the piston rod is hinged with the movable claw 2 through a third hinge point 42 and used for driving the oil cylinder 4 to stretch and drive the movable claw 2 to rotate around the second hinge point 1-4;
when the locking structure 3-1-1 of the locking rod 3-1 is meshed with the locking structure 2-1 of the movable claw 2, the locking rod is positioned on a connecting line of the first hinge point 1-3 and the third hinge point 42 of the oil cylinder 4.
In some embodiments, the movable hook 2 extends along the third hinge point 42 toward the first hinge point 1-3 to form an extension, one end of the extension is fixedly connected to the hook portion of the movable hook 2, and the other end is the end of the movable hook 2 close to the locking rod.
Preferably, in some embodiments, the first connecting pin stopping point 1-1 of the working device adopts a circular arc transition structure.
In some embodiments, as shown in fig. 1, the cylinder end of the cylinder 4 is hinged to the housing 1 through the first hinge point 1-3, and the piston rod end is hinged to the movable claw 2 through the third hinge point 42.
In some embodiments, the portion of the movable claw 2 near the stopping position 1-1 of the first connecting pin shaft is in a special-shaped structure.
In some embodiments, as shown in FIG. 1, the locking structure 3-1-1 of the locking end of the locking lever 3-1 and the stop structure 2-1 of the moveable claw 2 are cooperatively stepped.
In some other embodiments, the locking structure 3-1-1 of the locking end of the locking rod 3-1 and the stopping structure 2-1 of the movable claw 2 can also be in a matched sawtooth shape.
In some embodiments, as shown in fig. 1, a double-lock type quick connector includes a housing 1, a movable claw 2, a locking mechanism 3, a fixed claw 5, a cylinder 4 for a hydraulic quick connector, a pin, a bearing, and other parts.
The locking mechanism 3 comprises a locking rod 3-1 and a secondary locking claw 3-2; when the excavator normally works, the driving oil cylinder 4 drives the movable claw 2 to clamp the first connecting pin shaft 6-1 of the operation device, the locking mechanism 3 rotates under the action of self gravity, the secondary locking claw 3-2 keeps descending posture, hooks the second connecting pin shaft 6-2 of the operation device, keeps clamping the second connecting pin shaft 6-2, the secondary locking claw 3-2 in the locking mechanism 3 clamps the second connecting pin shaft 6-2 of the operation device in an embracing way and drives the locking structure 3-1-1 of the locking rod 3-1 to be meshed with the front end stopping structure 2-1 of the movable claw 2, so that the purpose of locking the movable claw 2 is achieved, double locking and automatic locking are realized, the locking rod drives the secondary locking claw to lock the second connecting pin shaft 6-2 of the operation device while locking the movable claw 2, the purpose of double locking is achieved.
The locking rod 3-1 is used for locking the movable claw 2 and preventing the movable claw 2 from being driven to retract under the condition that the oil cylinder 4 fails, so that the first connecting pin shaft 6-1 of the operation device is released to cause an accident;
the secondary locking claw 3-2 is used for releasing and tightly holding the second connecting pin shaft 6-2 of the operation device, and solves the problems that the existing quick connector only tightly holds the second connecting pin shaft 6-2 of the operation device on one side, a closed state is not formed, and potential safety hazards exist;
at the dead point position, the overlapping position of the locking rod 3-1 and the movable claw 2 is collinear with the force application direction of the oil cylinder 4, and the force applied by the oil cylinder 4 is completely offset by the reaction force of the locking rod, so that the effective force for driving the movable claw 2 is zero;
the movable claw 2 is a claw driven by the oil cylinder 4;
the fixed fingers 5 are non-movable fingers on the quick connector housing 1.
Further, in this embodiment, the double-lock hydraulic quick connector is improved on the basis of the existing H-type hydraulic quick connector, and the locking mechanism 3 is added to the housing 1 and the movable claw 2 which have different structures. The common H-shaped hydraulic quick connector clamps the first connecting pin 6-1 of the operating device only through the movable claw 2 and the flat plate brake, so that the structure causes less contact surface with the first connecting pin 6-1 and poor cohesion. The rear side of the shell 1 of the double-locking hydraulic quick connector adopts circular arc transition, and the diameters of the pin shafts of the excavator with the same tonnage are basically close to or the same, so that the circular arc design effectively increases the contact area between the braking structure of the shell 1 and the first connecting pin shaft 6-1 of the operation device, greatly improves the cohesion of the first connecting pin shaft 6-1 of the operation device, and effectively reduces the shaking of the first connecting pin shaft 6-1. The front end of the movable hook claw 2 extends out to form an engageable locking structure for being engaged and locked with the locking mechanism 3. The locking structure adopts a lever principle, and the gravity moment of the secondary locking claw is far greater than that of the locking rod, so that the secondary locking claw can always keep a descending posture and keep clamping the second connecting pin shaft 6-2 when the excavator normally works; the other end of the locking rod is always kept lifted to be meshed with the stopping structure of the movable claw 2. One end of the cylinder body of the oil cylinder 4 of the quick connector is fixed with the hinge points of the fixed hook 5 and the locking mechanism 3 of the shell 1 at the same time, and the piston rod end of the quick connector is hinged with the movable hook 2. The driving oil cylinder 4 drives the movable claw 2 to lock the first connecting pin shaft 6-1, and simultaneously drives the locking mechanism 3. The common quick connector only uses the fixed hook claw 5 to hook the second connecting pin shaft 6-2 of the operation device, the fixed hook claw 5 is usually designed in a semicircular shape for facilitating the pin shaft to pass in and out, one side of the fixed hook claw is in contact with the pin shaft, and the other side of the fixed hook claw is opened for facilitating the pin shaft to pass in and out, so that the second connecting pin shaft 6-2 of the operation device is in a semi-exposed state. The utility model discloses the secondary locking hook claw structure of addding can ensure that operation device second connecting pin 6-2 also is in the locking state in work, has improved quick connector's reliability greatly.
Furthermore, at the contact part of the inner side of the movable claw 2 and the first connecting pin shaft 6-1, the outer side structure of the movable claw 2 can be designed into special-shaped structures according to the conditions of connecting machines, tonnage and the like so as to strengthen the structural strength of the movable claw 2.
Furthermore, the movable claw 2 is provided with a stop structure 2-1, the stop structure 2-1 can be in a shape capable of being meshed like a step shape, a sawtooth shape and the like, and the stop structure 2-1 is meshed with the locking rod end 3-1-1 in shape, so that the aim of automatically locking the movable claw 2 is fulfilled.
(1) The locking mechanism 3 adopts a lever principle, and the gravity moment of the secondary locking claw is far greater than that of the locking rod, so that the secondary locking claw can always keep a descending posture when the excavator normally works and keep clamping the second connecting pin shaft 6-2; the other end of the locking rod is always kept lifted to be meshed with the stopping structure of the movable claw 2. When the oil cylinder 4 is failed and retracted, the mutually meshed position of the locking rod and the stopping structure of the movable claw 2 is on the action line of the force applied by the oil cylinder 4, so that the force applied to the movable claw 2 by the oil cylinder 4 is completely counteracted by the locking rod, and no component force is used for driving the movable claw 2 to move. Thus achieving a double protection of the locking of the movable hook 2.
(2) Fig. 3 is a schematic diagram of the movement position of the double-lock quick connector when the housing is unlocked, as shown in fig. 3, when the accessory needs to be replaced, the quick-change connector is completely inverted, at this time, due to the lever principle, the secondary locking claw will be separated from the second connecting pin shaft 6-2 due to the gravity, and the locking rod end will move in the opposite direction to be separated from the position where the movable claw 2 is engaged, at this time, the oil cylinder 4 can be retracted, the oil cylinder 4 drives the movable claw 2 to release the second connecting pin shaft 6-2, and then the first connecting pin shaft 6-1 is released, so that the connection of the accessory is completely released.
(3) The novel H-shaped hydraulic quick-change connector is characterized by comprising a shell structure design, a movable claw 2 design, a locking structure design and the like;
(4) the first connecting pin shaft 6-1 and the second connecting pin shaft 6-2 of the operation device can be completely locked at the same time, so that the aim of double locking is fulfilled, and the reliability of the quick connector is improved;
(5) when the movable claw 2 grabs the first connecting pin shaft 6-1 of the operation device, the locking rod automatically locks the movable claw 2 to prevent the failure of the oil cylinder; meanwhile, potential safety hazards caused by manual bolts are avoided.
According to another aspect of the utility model, still provide an excavator, include double-lock formula quick connector.
The utility model relates to an application of double-lock formula high-speed connector can make first connecting pin axle 6-1 of operation device, second connecting pin axle 6-2 all firmly locked, and great improvement high-speed connector's reliability adopts H type structure simultaneously, no longer receives the restriction in narrow and small space, conveniently carries out the structure to activity hook 2 and strengthens for this uses can be extensive be applied to in large-scale tonnage high-speed connector. Simultaneously, the movable claw 2 is automatically locked, so that accidents caused by manual operation errors are avoided, manpower is saved, the application is wide, the structure is simple, the cost control is reasonable, the user acceptance degree is high, and the product propulsion is rapid and effective.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered limiting with respect to the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (7)
1. A double-locking type quick connector is characterized by comprising a shell (1), a movable claw (2), a locking mechanism (3) and an oil cylinder (4);
the shell (1) is provided with a first connecting pin shaft stopping part (1-1) of the operation device, which is used for clamping the first connecting pin shaft (6-1) of the operation device under the action of matching with the movable hook claw (2), and a fixed hook claw (5) which is used for clamping the second connecting pin shaft (6-2) of the operation device under the action of matching with the secondary locking hook claw (3-2); a second connecting pin shaft stopping part (1-2) of the operation device is arranged on the inner side of the fixed claw (5);
the locking mechanism (3) comprises a locking rod (3-1) and a secondary locking claw (3-2) which are connected with each other, and the locking rod (3-1) and the secondary locking claw (3-2) are fixedly connected or are in an integrated structure; the locking mechanism (3) is hinged to the shell (1) through a first hinge point (1-3) and can rotate around the first hinge point (1-3) under the action of self gravity, the first hinge point (1-3) is close to the fixed claw (5), the first hinge point (1-3) is taken as a lever supporting point, and the gravity moment of the secondary locking claw (3-2) is greater than that of the locking rod; the locking end of the locking rod (3-1) is provided with a locking structure (3-1-1) for locking the movable claw (2);
the middle part of the movable claw (2) is hinged and installed on the shell (1) through a second hinge point (1-4), and can rotate around the second hinge point (1-4) to be matched with a stopping part (1-1) of a first connecting pin shaft of the operation device to clamp the first connecting pin shaft (6-1) of the operation device; a stop structure (2-1) which is matched with the locking structure (3-1-1) of the locking rod and is engaged at a set position is arranged at the end, close to the locking rod, of the movable claw (2);
one of a cylinder body and a piston rod of the oil cylinder (4) is hinged and installed on the shell (1) through the first hinge point (1-3), and the other of the cylinder body and the piston rod is hinged with the movable claw (2) through a third hinge point (42) and used for driving the oil cylinder (4) to stretch and drive the movable claw (2) to rotate around the second hinge point (1-4);
when the locking structure (3-1-1) of the locking rod (3-1) is meshed with the locking structure (2-1) of the movable claw (2), the locking rod is positioned on a connecting line of the first hinge point (1-3) and the third hinge point (42) of the oil cylinder.
2. Double-locking quick connector according to claim 1, characterized in that the working device first connecting pin stop (1-1) is of circular arc transition structure.
3. Double-locking quick connector according to claim 1, characterized in that the cylinder end of said cylinder (4) is mounted articulated on said housing (1) through said first articulation point (1-3), the piston rod end being articulated with the movable hook (2) through a third articulation point (42).
4. Double-lock quick connector according to claim 3, characterized in that the portion of said movable finger (2) close to the stop (1-1) of said first connecting pin takes a profile.
5. Double-locking quick connector according to claim 1, characterized in that the locking structure (3-1-1) of the locking end of the locking lever (3-1) and the locking structure (2-1) of the movable finger (2) are in the form of cooperating steps.
6. Double-locking quick connector according to claim 1, characterized in that the locking structure (3-1-1) of the locking lever (3-1) and the stop structure (2-1) of the movable finger (2) are of a cooperating saw-tooth shape.
7. An excavator comprising a double lock quick connector as claimed in any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921794798.6U CN211057905U (en) | 2019-10-24 | 2019-10-24 | Double-lock type quick connector and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921794798.6U CN211057905U (en) | 2019-10-24 | 2019-10-24 | Double-lock type quick connector and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211057905U true CN211057905U (en) | 2020-07-21 |
Family
ID=71589539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921794798.6U Withdrawn - After Issue CN211057905U (en) | 2019-10-24 | 2019-10-24 | Double-lock type quick connector and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211057905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670654A (en) * | 2019-10-24 | 2020-01-10 | 徐州徐工挖掘机械有限公司 | Double-lock type quick connector and excavator |
| CN112227439A (en) * | 2020-10-12 | 2021-01-15 | 徐州巴特工程机械股份有限公司 | Normally closed quick-change connector for excavator |
-
2019
- 2019-10-24 CN CN201921794798.6U patent/CN211057905U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110670654A (en) * | 2019-10-24 | 2020-01-10 | 徐州徐工挖掘机械有限公司 | Double-lock type quick connector and excavator |
| CN110670654B (en) * | 2019-10-24 | 2024-03-29 | 徐州徐工挖掘机械有限公司 | Double-locking type quick connector and excavator |
| CN112227439A (en) * | 2020-10-12 | 2021-01-15 | 徐州巴特工程机械股份有限公司 | Normally closed quick-change connector for excavator |
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