CN212297140U - Quick connector for automatically connecting hydraulic oil circuit - Google Patents
Quick connector for automatically connecting hydraulic oil circuit Download PDFInfo
- Publication number
- CN212297140U CN212297140U CN202021015390.7U CN202021015390U CN212297140U CN 212297140 U CN212297140 U CN 212297140U CN 202021015390 U CN202021015390 U CN 202021015390U CN 212297140 U CN212297140 U CN 212297140U
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- quick connector
- shaft
- arc plate
- swing hook
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model provides a quick connector for automatically connecting a hydraulic oil circuit, which comprises a connector body and a hydraulic quick connector II, wherein the hydraulic quick connector II is arranged on a working device and is connected with an internal oil pipe; the connector body includes the support body of being connected with the arm frame and sets up the swing hook on the support body, hydraulic pressure adjustment mechanism and hydraulic pressure quick-operation joint one, the inside oil pipe of arm frame is connected to hydraulic pressure quick-operation joint one, be equipped with the first circular arc board with first connecting axle joint on the support body, the one end of swing hook and support body rotatable coupling and the other end are equipped with the second circular arc board with second connecting axle joint, two circular arc board opening directions deviate from mutually, swing hook and hydraulic pressure adjustment mechanism hook linkage set up and realize under its drive the interval of two circular arc boards and the interval adaptation of two connecting axles, two hydraulic pressure quick-operation joints correspond to be connected and form hydraulic pressure circulation oil circuit between equipment and arm frame. The utility model discloses work efficiency is high and firm in connection.
Description
Technical Field
The utility model relates to an engineering machine tool makes technical field, especially, relates to an automatic connect quick connector of hydraulic pressure oil circuit.
Background
The quick connector is very wide in the technical field of engineering machinery manufacturing, and working devices such as a breaking hammer, an injection head or a roughening device can be mounted on a mechanical arm support of an excavator or other large-scale operation engineering vehicles through the quick connector, so that the quick expansion of the operation function of the mechanical arm support according to production and operation requirements is facilitated.
Existing quick connectors are generally classified into mechanical and hydraulic types. The mechanical quick connector is mostly locked by a spring, and the elastic force of the spring is limited, so that the joint is easy to loosen, and even the working part falls off in severe cases, thereby resulting in safety accidents. The quick connector is characterized in that an adjusting screw is arranged on some mechanical quick connectors, the screw rotates to drive one connecting piece to move to adjust the distance between the two connecting pieces so as to be matched with a shaft on a working device, the requirements on the positions of the connecting piece and the shaft on the working device are strict, so that the application range of the quick connector is limited, and the connecting piece is provided with a screw support, so that the structure of the quick connector is relatively complex, meanwhile, the screw is exposed outside, the support strength of the screw is limited, the adjustment of the screw is easily influenced by external factors, and the service life of the screw is influenced.
The hydraulic quick connector drives the connecting piece to fasten or release through the oil cylinder, and compared with a mechanical quick connector, the hydraulic quick connector has the advantages of wide application range, long service life and more stable operation process.
The hydraulic quick connectors currently available in the industry also have the following disadvantages: when the working devices such as a breaking hammer and an injection head are connected, tools such as a wrench and the like are needed to be manually used for connecting a mechanical arm support and a hydraulic oil pipe joint on the working device, and the device has a progress space in the aspects of operation convenience and efficiency improvement; meanwhile, after the hydraulic oil pipe joint is connected and detached for many times, sealing is easy to lose efficacy, hydraulic oil leakage is caused, pressure of a working device system is unstable, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can realize that hydraulic pressure oil circuit swiftly connects and the quick connector that the leakproofness is good on mechanical arm frame and the equipment to solve the problem that proposes in the background art.
In order to achieve the above object, the utility model provides an automatic connect quick connector of hydraulic pressure oil circuit for connect mechanical arm frame and equipment be equipped with parallel first connecting axle and second connecting axle on the equipment, quick connector includes the connector body and sets up the hydraulic pressure quick-operation joint two on equipment, hydraulic pressure quick-operation joint two is connected with the oil pipe in the equipment.
The connector body comprises a frame body connected with the mechanical arm support, a swing hook arranged on the frame body, a hydraulic adjusting mechanism and a hydraulic quick connector I, the first hydraulic quick connector is connected with an oil pipe in the mechanical arm support, a first arc plate used for clamping the first connecting shaft is fixedly arranged on the frame body, the inner diameter of the first arc plate is matched with the outer diameter of the first connecting shaft, one end of the swing hook is rotatably connected with the frame body, the other end of the swing hook is provided with a second arc plate used for clamping a second connecting shaft, the inner diameter of the second arc plate is matched with the outer diameter of the second connecting shaft, the opening directions of the two arc plates are deviated (namely the clamping position of the two arc plates and the corresponding connecting shaft is positioned at the opposite side of the two connecting shafts), the hydraulic adjusting mechanism comprises a control oil cylinder, and a piston rod of the control oil cylinder is in linkage arrangement with the swing hook; under the action of the hydraulic adjusting mechanism, the distance between the second arc plate and the first arc plate is matched with the distance between the first connecting shaft and the second connecting shaft, and the first hydraulic quick connector and the second hydraulic quick connector are correspondingly connected to form a hydraulic circulating oil circuit between the working device and the mechanical arm frame.
Preferably, a guide pin shaft is arranged on the first hydraulic quick connector, and a matched guide hole is correspondingly arranged on the second hydraulic quick connector; or a guide pin shaft is arranged on the second hydraulic quick connector, and a matched guide hole is correspondingly arranged on the first hydraulic quick connector.
Preferably, a third arc plate used for clamping the second connecting shaft is fixedly arranged on the frame body, the inner diameter of the third arc plate is matched with the outer diameter of the second connecting shaft, and the distance between the third arc plate and the first arc plate is matched with the distance between the first connecting shaft and the second connecting shaft.
Preferably, the third arc plate corresponds to a central angle of less than 180 °.
Preferably, the central angles corresponding to the first circular arc plate and the second circular arc plate are both less than or equal to 180 °.
Preferably, the frame body is further provided with a positioning pin shaft for limiting the swing hook.
Preferably, the hydraulic adjusting mechanism further comprises a control oil pipe, a bidirectional hydraulic lock and an oil pipe joint, one end of the control oil cylinder is connected with the swing hook through a first pin shaft, the other end of the control oil cylinder is connected with the frame body through a second pin shaft, one end of the oil pipe is connected with the control oil cylinder through the oil pipe joint, the other end of the oil pipe is connected with the bidirectional hydraulic lock through the oil pipe joint, and the bidirectional hydraulic lock is fixedly arranged on the frame body.
Preferably, the swing hook further comprises a hook-shaped body and a shaft sleeve, the hook-shaped body is provided with a hinge pin shaft hole used for connecting the frame body and an oil cylinder pin shaft hole used for connecting a piston rod of the control oil cylinder, and the shaft sleeve is installed in the hinge pin shaft hole and used for reducing relative motion friction between the hook-shaped body and the frame body.
Preferably, a first shaft and a second shaft which are used for connecting the mechanical arm support are arranged on the frame body, and the first shaft, the second shaft, the first connecting shaft and the second connecting shaft are arranged in parallel.
Preferably, the support body includes that the curb plate that two parallels and symmetry set up and the two form between them and be used for holding swing hook, hydraulic pressure adjustment mechanism and the hydraulic pressure cavity structures of quick joint one, the both ends of axle one and axle two are equallyd divide and do not are connected with two curb plates are perpendicular, are equipped with the mounting panel that is used for installing hydraulic pressure quick joint one between two curb plates be equipped with axle one mounting hole, axle two mounting holes, swing hook connecting hole, control cylinder connecting hole and swing hook locating hole on the curb plate, the locating pin axle is connected with swing hook locating hole.
The utility model provides a technical scheme has following beneficial effect at least:
1. the utility model provides a quick connector simple structure, convenient operation, through the automatic high-speed joint between mechanical cantilever frame and the equipment of hydraulic pressure quick-operation joint one and hydraulic pressure quick-operation joint two realization that match, removed artifical supplementary hydraulic pressure oil pipe's operation from, change different equipment only need about 10 seconds, improved work efficiency greatly, and still be equipped with supporting uide pin axle and guiding hole on two hydraulic pressure quick-operation joints, can satisfy oil pipe's the reliable butt joint of automation in the connection process.
2. The utility model provides a quick connector is through setting up first circular arc board and the second circular arc board that crooked direction deviates from mutually, cooperates the third circular arc board simultaneously, realizes the fastening joint between connector body and equipment, avoids the not enough defect of clamping-force, still ensures through setting up the locating pin axle that the second circular arc board is not taking place to become flexible holding the in-process with, improves the safety shape.
3. The utility model provides a quick connector rotates the clearance between adjustment second circular arc board and the third circular arc board through control swing hook, makes the utility model discloses the application scope of connector is wider, and popularization nature is good.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts, wherein:
fig. 1 is a front sectional view of a quick connector according to embodiment 1 of the present invention;
fig. 2 is a plan view of the quick connector according to embodiment 1 of the present invention;
FIG. 3 is a schematic view of the frame of FIG. 1 (from a rear perspective);
FIG. 4 is a schematic structural view (back view) of the first connecting shaft, the second connecting shaft and the second hydraulic quick coupler of FIG. 1 mounted on a working device;
FIG. 5 is a schematic view of the construction of the swing hook of FIG. 1 (from a back view);
fig. 6 is a schematic view (rear view) of the internal structure of the connector body of fig. 1;
FIG. 7 is a schematic view of the external structure of the connector body of FIG. 1;
in the figure: 01, a working device, 02, a first connecting shaft, 03, a second connecting shaft, 1, 2, 3, two, 4 swing hooks, 5, a hydraulic adjusting mechanism, 6, 7, a hydraulic quick connector, 8, a first arc plate, 9, a third arc plate and 10, wherein the first connecting shaft, the second swing hook, the second hydraulic quick connector and the third arc plate are connected in sequence;
1.1 side plate, 1.2 mounting plate, 1.3 shaft I mounting hole, 1.4 shaft II mounting hole, 1.5 swing hook connecting hole, 1.6 control oil cylinder connecting hole and 1.7 swing hook positioning hole;
4.1 hook-shaped body, 4.2 hinge pin shaft holes, 4.3 cylinder pin shaft holes, 4.4 second arc plate and 4.5 shaft sleeve;
5.1 control cylinder, 5.2 control oil pipe, 5.3 two-way hydraulic lock, 5.4 oil pipe joint, 5.5 first round pin axle, 5.6 second round pin axle.
7.1 guiding the pin shaft.
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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
referring to fig. 1 to 7, a quick connector for automatically connecting a hydraulic oil circuit is used for connecting a mechanical arm support and a working device 01, and a first connecting shaft 02 and a second connecting shaft 03 which are parallel to each other are arranged on the working device 01.
The quick connector comprises a connector body and a hydraulic quick connector II 7 arranged on the working device 01, the connector body comprises a frame body 1 connected with the mechanical arm support and a swing hook 4, a hydraulic adjusting mechanism 5 and a hydraulic quick connector I6 which are arranged on the frame body 1, the hydraulic quick connector I6 is connected with an oil pipe in the mechanical arm support, the hydraulic quick connector II 7 is connected with the oil pipe in the working device 01, and a hydraulic circulating oil way can be formed between the working device and the mechanical arm support through corresponding connection of the hydraulic quick connector II 7 and the oil pipe in the working device 01.
The frame body 1 is provided with a first shaft 2 and a second shaft 3 which are used for connecting the mechanical arm frame, and the first shaft 2, the second shaft 3, the first connecting shaft 02 and the second connecting shaft 03 are arranged in parallel.
The frame body 1 comprises two parallel and symmetrically arranged side plates 1.1, a cavity structure used for containing the swing hook 4, the hydraulic adjusting mechanism 5 and the hydraulic quick connector I6 is formed between the two side plates, and the two side plates 1.1 are fixedly connected with a plurality of rib plates through connecting plates. The mounting plate 1.2 is arranged between the two side plates, and a first shaft mounting hole 1.3, a second shaft mounting hole 1.4, a swing hook connecting hole 1.5, a control oil cylinder connecting hole 1.6 and a swing hook positioning hole 1.7 are arranged on the side plate 1.1.
The first hydraulic quick connector 6 is fixedly mounted on the mounting plate 1.2 through bolts.
The first shaft 2 and the second shaft 3 are perpendicular to the two side plates 11 and are fixedly connected with the first shaft mounting hole 1.3 and the second shaft mounting hole 1.4 through bolts respectively.
The hydraulic adjusting mechanism 5 comprises a control oil cylinder 5.1, a control oil pipe 5.2, a bidirectional hydraulic lock 5.3 and an oil pipe joint 5.4. The control oil cylinder 5.1 is hinged to the control oil cylinder connecting hole 1.6 through a second pin shaft 5.6, the free end of a piston rod of the control oil cylinder is hinged to the swing hook 4 through a first pin shaft 5.5, the number of the oil pipes 5.2 is two, one ends of the two oil pipes are connected with the control oil cylinder 5.1 through oil pipe connectors 5.4, the other ends of the two oil pipes are connected with a bidirectional hydraulic lock 5.3 through the oil pipe connectors 5.4, and the bidirectional hydraulic lock 5.3 is fixedly connected to the side plate 1.1 through bolts.
The swing hook 4 comprises a hook-shaped body 4.1, a second circular arc plate 4.4 and a shaft sleeve 4.5. One end of the hook-shaped body 4.1 is provided with a hinge pin shaft hole 4.2 for being hinged with a swing hook connecting hole 1.5, the second arc plate 4.4 is arranged at the other end of the hook-shaped body 4.1 and is used for being clamped with the second connecting shaft 03, the inner diameter of the second arc plate 4.4 is matched with the outer diameter of the second connecting shaft 03, the middle of the hook-shaped body 4.1 is also provided with an oil cylinder pin shaft hole 4.3 for being hinged with the free end of a piston rod of the control oil cylinder 5.1, and the shaft sleeve 4.5 is arranged in the hinge pin shaft hole 4.2 and is used for reducing the relative motion friction between the hook-shaped body 4.1 and the frame body 1.
The first circular arc board 8 that is used for the first connecting axle 02 of joint and the third circular arc board 9 that is used for joint second connecting axle 03 set firmly on support body 1, the internal diameter of first circular arc board 8 sets up with the external diameter cooperation of first connecting axle 02, the internal diameter of third circular arc board 9 sets up with the external diameter cooperation of second connecting axle 03, just distance and the first connecting axle 02 of first connecting axle between and the distance adaptation between third circular arc board 9 and first circular arc board 8, when first circular arc board 8 and first connecting axle 02 joint promptly, third circular arc board 9 also just in time is fixed with second connecting axle 03 joint.
The opening directions of the first arc plate 8 and the second arc plate 4.4 are deviated from each other, and fastening and clamping of the two connecting shafts can be realized through reverse force exertion.
The frame body 1 is further provided with a positioning pin shaft 10 used for limiting the swing hook 4, the positioning pin shaft 10 is fixedly connected with a swing hook positioning hole 1.7 through threads, and the positioning pin shaft 10 is located on one side, close to the control oil cylinder 5.1, of the swing hook 4 so as to prevent the swing hook 4 from rotating towards the direction far away from the second connecting shaft 03.
In this embodiment, the second hydraulic quick connector 7 is a male connector and is provided with a guide pin 7.1 thereon, and the first hydraulic quick connector 6 is a female connector and is correspondingly provided with a matched guide hole thereon, so that the two connectors can be quickly and accurately butted.
In this embodiment, the central angle corresponding to the third arc plate 9 is less than 180 °, and the central angles corresponding to the first arc plate 8 and the second arc plate 4.4 are both 180 °.
In this embodiment, the first arc plate 8 and the second arc plate 4.4 are made of steel pipes.
The working process of the quick connector automatically connected with the hydraulic oil way in the embodiment is as follows:
firstly, aligning the connector body with a working device 01 to ensure that a first arc plate 8 and a third arc plate 9 are respectively attached to partial outer surfaces of a first connecting shaft 02 and a second connecting shaft 03, simultaneously, correspondingly connecting a hydraulic quick connector II 7 and a hydraulic quick connector I6, inserting a guide pin shaft 7.1 into a guide hole, then, under the action of a hydraulic adjusting mechanism 5, driving a swing hook 4 to rotate by taking a hinge pin shaft hole 4.2 as a center by a piston rod of a control oil cylinder 5.1 to adjust the distance between the second arc plate 4.4 and the first arc plate 8, when the distance is suitable for the distance between the two connecting shafts, clamping and fixing the second arc plate 4.4 and the second connecting shaft 03, and finally, inserting a positioning pin shaft 10 into a swing hook positioning hole 1.7 to realize the position locking of the swing hook 4, so as to avoid the second arc plate 4.4 from being loosened.
The above description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention. Any improvement or equivalent replacement made by utilizing the contents of the specification and the drawings of the present invention can be directly or indirectly applied to other related technical fields within the spirit and principle of the present invention, and shall be included in the scope of the present invention.
Claims (10)
1. A quick connector automatically connected with a hydraulic oil way is used for connecting a mechanical arm support and a working device (01), and a first connecting shaft (02) and a second connecting shaft (03) which are parallel to each other are arranged on the working device (01), and is characterized by comprising a connector body and a hydraulic quick connector II (7) arranged on the working device (01), wherein the hydraulic quick connector II (7) is connected with an oil pipe in the working device (01);
the connector body comprises a frame body (1) connected with a mechanical arm support, a swing hook (4), a hydraulic adjusting mechanism (5) and a hydraulic quick connector (6), wherein the swing hook (4), the hydraulic adjusting mechanism (5) and the hydraulic quick connector (6) are arranged on the frame body (1), the hydraulic quick connector (6) is connected with an oil pipe in the mechanical arm support, a first arc plate (8) used for clamping a first connecting shaft (02) is fixedly arranged on the frame body (1), the inner diameter of the first arc plate (8) is matched with the outer diameter of the first connecting shaft (02), one end of the swing hook (4) is rotatably connected with the frame body (1), a second arc plate (4.4) used for clamping a second connecting shaft (03) is arranged at the other end of the swing hook, the inner diameter of the second arc plate (4.4) is matched with the outer diameter of the second connecting shaft (03), the opening directions of the two arc plates deviate from each other, the hydraulic adjusting mechanism (5) comprises a control oil cylinder (5.1, a piston rod of the control oil cylinder (5.1) is in linkage arrangement with the swing hook (4); under the action of the hydraulic adjusting mechanism (5), the distance between the second arc plate (4.4) and the first arc plate (8) is matched with the distance between the first connecting shaft (02) and the second connecting shaft (03), and the first hydraulic quick connector (6) and the second hydraulic quick connector (7) are correspondingly connected to form a hydraulic circulating oil circuit between the working device and the mechanical arm frame.
2. The quick connector for automatically connecting the hydraulic oil circuit according to claim 1, wherein a guide pin shaft is arranged on the first hydraulic quick connector (6), and a matched guide hole is correspondingly arranged on the second hydraulic quick connector (7); or a guide pin shaft is arranged on the second hydraulic quick connector (7), and a matched guide hole is correspondingly arranged on the first hydraulic quick connector (6).
3. The quick connector for automatically connecting the hydraulic oil circuit according to claim 2, wherein a third circular arc plate (9) for clamping the second connecting shaft (03) is fixedly arranged on the frame body (1), the inner diameter of the third circular arc plate (9) is matched with the outer diameter of the second connecting shaft (03), and the distance between the third circular arc plate (9) and the first circular arc plate (8) is matched with the distance between the first connecting shaft (02) and the second connecting shaft (03).
4. A quick connector for the automatic connection of hydraulic circuits according to claim 3, characterized in that said third circular arc plate (9) has a corresponding central angle of less than 180 °.
5. The quick connector for automatically connecting a hydraulic circuit according to claim 4, characterized in that the corresponding central angles of the first circular arc plate (8) and the second circular arc plate (4.4) are both less than or equal to 180 °.
6. The quick connector for automatically connecting the hydraulic oil circuit according to claim 3, wherein a positioning pin (10) for limiting the swing hook (4) is further arranged on the frame body (1).
7. The quick connector for automatically connecting the hydraulic oil circuit according to claim 6, wherein the hydraulic adjusting mechanism (5) further comprises a control oil pipe (5.2), a two-way hydraulic lock (5.3) and an oil pipe joint (5.4), one end of the control oil cylinder (5.1) is connected with the swing hook (4) through a first pin (5.5), the other end of the control oil cylinder is connected with the frame body (1) through a second pin (5.6), one end of the oil pipe (5.2) is connected with the control oil cylinder (5.1) through the oil pipe joint (5.4), the other end of the oil pipe is connected with the two-way hydraulic lock (5.3) through the oil pipe joint (5.4), and the two-way hydraulic lock (5.3) is fixedly arranged on the frame body (1).
8. The quick connector for automatically connecting a hydraulic oil circuit according to claim 7, characterized in that the swing hook (4) further comprises a hook-shaped body (4.1) and a bushing (4.5), a hinge pin shaft hole (4.2) for connecting the frame body (1) and a cylinder pin shaft hole (4.3) for connecting a piston rod of the control cylinder (5.1) are formed in the hook-shaped body (4.1), and the bushing (4.5) is installed in the hinge pin shaft hole (4.2) for reducing the relative motion friction between the hook-shaped body (4.1) and the frame body (1).
9. The quick connector for automatically connecting the hydraulic oil circuit according to claim 8, wherein a first shaft (2) and a second shaft (3) for connecting the mechanical arm support are arranged on the frame body (1), and the first shaft (2), the second shaft (3), the first connecting shaft (02) and the second connecting shaft (03) are arranged in parallel.
10. The quick connector for automatically connecting the hydraulic oil circuit according to claim 9, wherein the frame body (1) comprises two side plates (1.1) which are arranged in parallel and symmetrically, a cavity structure for accommodating the swing hook (4), the hydraulic adjusting mechanism (5) and the hydraulic quick connector (6) is formed between the two side plates, two ends of the first shaft (2) and the second shaft (3) are respectively and vertically connected with the two side plates (1.1), a mounting plate (1.2) for mounting the hydraulic quick connector (6) is arranged between the two side plates, the side plates (1.1) are provided with a first shaft mounting hole (1.3), a second shaft mounting hole (1.4), a swing hook connecting hole (1.5), a control cylinder connecting hole (1.6) and a swing hook positioning hole (1.7), and the positioning pin shaft (10) is connected with the swing hook positioning hole (1.7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021015390.7U CN212297140U (en) | 2020-06-05 | 2020-06-05 | Quick connector for automatically connecting hydraulic oil circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021015390.7U CN212297140U (en) | 2020-06-05 | 2020-06-05 | Quick connector for automatically connecting hydraulic oil circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212297140U true CN212297140U (en) | 2021-01-05 |
Family
ID=73940705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021015390.7U Active CN212297140U (en) | 2020-06-05 | 2020-06-05 | Quick connector for automatically connecting hydraulic oil circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212297140U (en) |
-
2020
- 2020-06-05 CN CN202021015390.7U patent/CN212297140U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4102578B2 (en) | Rapid fitting | |
| AU2021101414A4 (en) | Hydraulic conversion platform and control method thereof | |
| US20020187034A1 (en) | Power coupling mounting for a quick-disconnect coupling on a heavy-duty machine | |
| US11453993B2 (en) | Quick coupler with hydraulic coupling manifold | |
| CN212297140U (en) | Quick connector for automatically connecting hydraulic oil circuit | |
| JPH056610B2 (en) | ||
| CN111536112A (en) | Quick connector for automatically connecting hydraulic oil circuit | |
| CN219317910U (en) | Self-locking pipe joint | |
| CN213796558U (en) | Utilize in omnipotent fixture device of small dimension tubular product production line | |
| CN213805532U (en) | Normally closed quick-change connector for excavator | |
| CN205638291U (en) | Clamp mechanism of directional rig of level | |
| CN217974534U (en) | Hydraulic rotary woodenware | |
| CN111660585A (en) | Automatic aligning system for electric melting sleeve assembly | |
| CN112160902A (en) | Be used for water pump flange quick connecting device | |
| CN111299750A (en) | Welding robot | |
| CN219586809U (en) | Bucket quick-change device for excavator and excavator | |
| CN215701404U (en) | Pipe jacking tool device of pipe jacking machine | |
| CN214785876U (en) | Building engineering external scaffolding is wall spare even | |
| CN217915380U (en) | Quick change structure for clamping jaw of manipulator | |
| CN220504010U (en) | Quick-change connector for excavator accessory | |
| CN216475308U (en) | Excavator connects convenient to dismantle | |
| CN214519673U (en) | Girder hole inner cavity supporting clamp | |
| CN211920675U (en) | Fixing device and crawler crane | |
| CN211113823U (en) | Loader accessory quick change mechanism | |
| CN215672247U (en) | Frameless material distribution trolley |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |