Double-lock hydraulic type automatic connector

Abstract

The invention relates to the technical field of engineering instruments, and particularly provides a double-lock hydraulic type automatic connector which comprises a supporting body, a first locking mechanism, a second locking mechanism and a driving mechanism arranged between the first locking mechanism and the second locking mechanism. The driving mechanism is arranged on the supporting body and used for driving the connecting body to slide and controlling the lock catch rod to rotate and lock, the driving mechanism comprises a tensioning oil cylinder, the tensioning oil cylinder is arranged on the supporting body in a sliding mode, and a driving shaft of the tensioning oil cylinder is connected with the connecting body and used for driving the connecting body to slide; the first locking mechanism and the tensioning oil cylinder are arranged on the supporting body in a sliding mode, and the first locking mechanism and the second locking mechanism can be controlled to conduct locking and releasing directly through stretching and retracting of the tensioning oil cylinder; and a spring pressing plate and a tensioning spring are arranged on the supporting body, so that sequential locking and sequential releasing of the first locking mechanism and the second locking mechanism can be achieved, and the accessory can be disassembled and assembled more safely and reliably.

Description

Technical Field

[0001] The invention relates to the technical field of engineering instruments, and in particular to a double-lock hydraulic automatic connector. Background Art

[0002] The main function of connectors in the field of engineering machinery is to enable buckets, breakers, and various rakes, claws and other tools (collectively referred to as accessories) to be quickly interchangeable through the two-way connection of the connector, thereby satisfying the rapid switching of various working conditions and realizing multiple uses of one machine. It is already quite common in the field of engineering machinery today, and there are many types of connectors.

[0003] With the advancement of technology, double-lock hydraulic connectors are increasingly used in the field of engineering enterprises. Due to their convenience and safety, they have gradually replaced the mechanical connectors and single-lock connectors in the prior art. However, when setting up the structure of the double-lock connector, it is necessary to achieve gradual locking and gradual release of the two locking hooks. The prior art mostly uses a connecting rod structure, such as the technical solution disclosed in CN116479960A. However, in order to achieve the linkage of the locking hook, the connection structure usually needs to adjust the appropriate angle when cooperating with the hydraulic cylinder, and spans a larger space, resulting in transmission delays and complex structures. Therefore, a double-lock hydraulic automatic connector that can increase the effective connection distance is needed to address this problem. Summary of the invention

[0004] In view of the above-mentioned technical problems, the technical solution of the present invention designs a double-lock hydraulic automatic connector. By slidingly arranging the first locking mechanism and the tensioning cylinder on the supporting body respectively, the extension and retraction of the tensioning cylinder can be directly utilized to control the locking and releasing of the first locking mechanism and the second locking mechanism; and by arranging a spring pressure plate and a tensioning spring on the supporting body, the sequential locking and sequential releasing of the first locking mechanism and the second locking mechanism can be achieved, making the disassembly and assembly of accessories safer and more reliable.

[0005] Specifically, the present invention provides a double-lock hydraulic automatic connector, comprising a support body,

[0006] A first locking mechanism, which is disposed at the front of the support body and comprises a first hook body and a connecting body, wherein the connecting body is slidably disposed on the support body;

[0007] A second locking mechanism, the second locking mechanism comprising a second hook body and a locking rod, the locking rod being hinged on the supporting body;

[0008] A driving mechanism, which is arranged between the first locking mechanism and the second locking mechanism, and is used to respectively drive the sliding of the connecting body and control the rotational locking of the locking rod. The driving mechanism includes a tensioning cylinder, which is slidably arranged on the supporting body, and a driving shaft of the tensioning cylinder is connected to the connecting body to drive the connecting body to slide; the locking rod is connected to the shell of the tensioning cylinder.

[0009] Further optimization of the technical solution of the present invention, the second locking mechanism also includes a linkage mechanism, the locking rod is hinged on the supporting body, the linkage mechanism is arranged between the locking rod and the tensioning cylinder, and the power end of the linkage mechanism is connected to the tensioning cylinder, and the driving end of the linkage mechanism is connected to the locking rod.

[0010] According to a further optimization of the technical solution of the present invention, the linkage mechanism includes at least one linkage rod, all of the linkage rods are arranged side by side, and their power ends are hinged to the tensioning cylinder.

[0011] Further optimization of the technical solution of the present invention, the linkage rod includes a fixed rod, a power rod and a driving rod, the linkage rod is rotatably arranged on the supporting body through the fixed rod, the power rod is hinged to the tensioning cylinder, and the driving rod is connected to the locking rod. Under the action of the power rod, the linkage rod rotates around the rotating connecting axis of the fixed rod, so that the driving rod drives the locking rod to achieve locking and opening.

[0012] According to a further optimization of the technical solution of the present invention, a long hole is provided on the driving rod, a pin corresponding to the constant adjustment is provided on the locking rod, and the pin drives the locking rod to move under the movement of the linkage rod.

[0013] Further optimization of the technical solution of the present invention also includes a spring pressure plate and a tensioning spring, wherein the spring pressure plate is arranged between the tensioning cylinder and the first locking mechanism, and the driving shaft of the tensioning cylinder passes through the spring pressure plate; the tensioning spring is sleeved on the driving shaft and is located between the tensioning cylinder and the spring pressure plate.

[0014] According to a further optimization of the technical solution of the present invention, the support body comprises a quick-change body and a mounting plate, the quick-change body is provided with mounting holes for connecting the mechanical boom and the connecting rod; the mounting plate is vertically fixed on the quick-change body.

[0015] In a further optimization of the technical solution of the present invention, a baffle plate which is respectively perpendicular to the mounting plate and the quick-change body is further provided at the front end of the support body, and the baffle plate is used to limit the maximum movement distance of the first locking mechanism.

[0016] An engineering machine comprises a machine body, accessories and the double-lock hydraulic automatic connector mentioned above.

[0017] Compared with the prior art, the advantages of the technical solution of the present invention are:

[0018] By setting a sliding first locking mechanism and a sliding tensioning oil cylinder, the effective connection distance of the drive shaft can be utilized more, so that the first locking mechanism can be effectively locked within the travel range, without the need for the conductive drive of the connecting rod, and the effective connection distance is increased, which can adapt to more different types of attachments, and the design structure is simpler and more flexible when used. In addition, the sliding setting of the first locking mechanism and the tensioning oil cylinder in conjunction with the tensioning spring can achieve the second locking mechanism first locked when connected, and then locked the first locking mechanism; similarly, the first locking mechanism is unlocked first when unlocking, and the second locking mechanism can be unlocked after the attachment is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Hereinafter, the present invention will be described in more detail based on embodiments and with reference to the accompanying drawings.

[0020] Figure 1 It is a schematic diagram of the explosion structure of the vehicle-mounted device in the technical solution of the present invention.

[0021] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale.

[0022] Description of labels:

[0023] 1-support body; 2-spring pressure plate; 3-tensioning spring; 4-driving shaft; 5-tensioning cylinder; 6-baffle; 7-first hook body; 8-rotating connecting shaft; 9-linking rod; 10-locking rod. DETAILED DESCRIPTION

[0024] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two, but does not exclude the inclusion of at least one.

[0026] It should also be noted that the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the product or system including the elements. In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] The following will be combined with the attached Figure 1 The present invention is further described.

[0028] In order to improve the safety of locking and releasing the attachment, and to effectively increase the flexibility of use of the tensioning cylinder 5, a double-lock hydraulic automatic connector is provided, including a support body 1, wherein the support body 1 includes a quick-change body and a mounting plate, and the quick-change body is provided with mounting holes for connecting the mechanical boom and the connecting rod; the mounting plate is vertically fixed to the quick-change body; a first locking mechanism, wherein the first locking mechanism is arranged at the front part of the support body 1 to hook the front connecting piece of the attachment, and the specific first locking mechanism includes an integrally arranged first hook body 7 and a connecting body, and the connecting body is slidably arranged on the support body 1, and can be slidably connected by a slide rail and a slide groove structure, or can be connected by a fixed rod and a pulley structure. The former is preferably used, and by slidingly setting the first locking mechanism, the effective connection distance of the drive shaft 4 can be utilized to a greater extent, so that the first locking mechanism can be connected to the front connecting piece of the attachment. It can be effectively locked within the travel range without the need for conductive drive of the connecting rod, which increases the effective connection distance and can adapt to more different types of accessories; a second locking mechanism is used to lock the rear connecting rod of the accessory, the second locking mechanism includes a second hook body and a locking rod 10, and the locking rod 10 is hinged on the supporting body 1; a driving mechanism, the driving mechanism is arranged between the first locking mechanism and the second locking mechanism, and is used to drive the sliding of the connecting body and the rotational locking of the locking rod 10 respectively, the driving mechanism includes a tensioning cylinder 5, the tensioning cylinder 5 is slidably arranged on the supporting body 1, and the driving shaft 4 of the tensioning cylinder 5 is connected to the connecting body to drive the connecting body to slide; the locking rod 10 is connected to the shell of the tensioning cylinder 5, and the sliding of the tensioning cylinder 5 can drive the locking rod 10 to lock and open.

[0029] The second locking mechanism also includes a linkage mechanism for directly connecting the tensioning cylinder 5 and the locking rod 10. In this embodiment, the locking rod 10 is hinged on the supporting body 1, and the linkage mechanism is arranged between the locking rod 10 and the tensioning cylinder 5. Specifically, the linkage mechanism is a straight connecting rod, one end of which is hinged on the housing of the tensioning cylinder 5 as a power end, and the other end is hinged to the locking rod 10 as an output end. Since the middle part of the locking rod 10 is hinged on the supporting body 1, the upper part of the hinge point is connected to the straight connecting rod, and the lower part is used to resist the rear connecting rod of the accessory to prevent it from slipping out of the second hook body. In this embodiment where the tensioning cylinder 5 is directly connected to the locking rod 10, the locking rod 10 is open to the outside in the unlocked state, and the straight connecting rod can be connected to the side of the hinge point close to the locking end by hinged upward movement. In this way, in the locked state, the locking rod 10 is open to the side of the tensioning cylinder 5, so it does not affect the rear accessory connecting rod from entering the second hook body.

[0030] Based on the above embodiments, Figure 1 In the preferred embodiment shown, the linkage mechanism includes at least one linkage rod 9, all of which are arranged side by side, preferably two, corresponding to two locking rods 10 (of course, the locking rod 10 can also be an elongated structure, with surface contact instead of point contact), so that the two sides of the attachment connecting rod can be locked respectively; specifically, the power end of the linkage rod 9 is hinged to the tensioning cylinder 5. The linkage rod 9 includes a fixed rod, a power rod and a driving rod. The linkage rod 9 is rotatably arranged on the supporting body 1 through the fixed rod, the power rod is hinged to the tensioning cylinder 5, and the driving rod is connected to the locking rod 10. Under the action of the power rod, the linkage rod 9 rotates around the rotating connecting shaft 8 of the fixed rod, so that the driving rod drives the locking rod 10 to achieve locking and opening. In order to facilitate the control of the movement of the locking rod 10, a long hole is opened on the driving rod to replace the hinge, and a pin corresponding to the constant adjustment is arranged on the locking rod 10, and the pin drives the locking rod 10 to move under the movement of the linkage rod 9.

[0031] In a preferred embodiment, in order to facilitate the connector in the technical solution of the present application, the effect of locking the second hook body first and then locking the first hook body 7 can be achieved, so a spring pressure plate 2 and a tension spring 3 are provided, the spring pressure plate 2 is provided between the tension cylinder 5 and the first locking mechanism, and the drive shaft 4 of the tension cylinder 5 passes through the spring pressure plate 2; the tension spring 3 is sleeved on the drive shaft 4 and is located between the tension cylinder 5 and the spring pressure plate. Specifically, during operation, according to the sequence from installation to disassembly of the attachment, the tension cylinder 5 is initially contracted, the first locking mechanism and the second locking mechanism are both in an inoperative state, and the tension spring 3 is in a compressed state, and the first hook body 7 is close to the spring pressure plate 2 under the action of the tension spring. At this time, the rear connecting rod of the attachment is placed into the second hook body, and then the tension cylinder 5 is started to extend its drive rod. Due to the extension of the drive rod, the elastic force of the tension spring 3 is released. Under the action of the elastic force, the tension cylinder 5 slides on the support body 1 along the track, thereby driving the linkage mechanism to make the lock rod 1 0 movement, thereby locking the rear connecting rod of the attachment in the second hook body; the driving rod of the hydraulic cylinder continues to extend. At this time, since the tensioning cylinder 5 has reached the rear end and the elastic force of the tensioning spring 3 has been basically released, the driving rod begins to push the first locking mechanism to move forward, so that the first hook body 7 hooks the front connecting rod of the attachment to achieve the purpose of fixing; similarly, the same is true when releasing the attachment. This embodiment can ensure that when installing and disassembling, one connecting rod of the attachment is locked first and then the other is operated. The step-by-step operation makes it safer and more reliable.

[0032] On the basis of the above embodiment, a baffle 6 which is perpendicular to the mounting plate and the quick-change body is further provided at the front end of the support body, and the baffle 6 is used to limit the maximum movement distance of the first locking mechanism.

[0033] An engineering machine comprises a machine body, accessories and the above-mentioned double-lock hydraulic automatic connector, wherein the connector is provided with a shell to prevent foreign matter from contacting the driving mechanism.

[0034] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0035] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced by equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A double-lock hydraulic automatic connector, characterized in that: Including a supporting body, A first locking mechanism, which is disposed at the front of the support body and comprises a first hook body and a connecting body, wherein the connecting body is slidably disposed on the support body; A second locking mechanism, the second locking mechanism comprising a second hook body and a locking rod, the locking rod being hinged on the supporting body; A driving mechanism, which is arranged between the first locking mechanism and the second locking mechanism, and is used to respectively drive the sliding of the connecting body and control the rotational locking of the locking rod. The driving mechanism includes a tensioning cylinder, which is slidably arranged on the supporting body, and a driving shaft of the tensioning cylinder is connected to the connecting body to drive the connecting body to slide; the locking rod is connected to the shell of the tensioning cylinder.

2. The double-lock hydraulic automatic connector according to claim 1, characterized in that: The second locking mechanism also includes a linkage mechanism, the locking rod is hinged on the supporting body, the linkage mechanism is arranged between the locking rod and the tensioning cylinder, and the power end of the linkage mechanism is connected to the tensioning cylinder, and the driving end of the linkage mechanism is connected to the locking rod.

3. The double-lock hydraulic automatic connector according to claim 2, characterized in that: The linkage mechanism comprises at least one linkage rod, all the linkage rods are arranged side by side, and the power ends thereof are hinged to the tensioning oil cylinder.

4. The double-lock hydraulic automatic connector according to claim 3, characterized in that: The linkage rod includes a fixed rod, a power rod and a driving rod. The linkage rod is rotatably arranged on the supporting body through the fixed rod. The power rod is hinged to the tensioning cylinder, and the driving rod is connected to the locking rod. Under the action of the power rod, the linkage rod rotates around the rotating connecting axis of the fixed rod, so that the driving rod drives the locking rod to achieve locking and opening.

5. The double-lock hydraulic automatic connector according to claim 3, characterized in that: The driving rod is provided with a long hole, and the locking rod is provided with a pin shaft corresponding to the constant adjustment, and the pin shaft drives the locking rod to move under the movement of the linkage rod.

6. The double-lock hydraulic automatic connector according to any one of claims 1 to 5, characterized in that: It also includes a spring pressure plate and a tensioning spring, wherein the spring pressure plate is arranged between the tensioning cylinder and the first locking mechanism, and the driving shaft of the tensioning cylinder passes through the spring pressure plate; the tensioning spring is sleeved on the driving shaft and is located between the tensioning cylinder and the spring pressure plate.

7. The double-lock hydraulic automatic connector according to claim 6, characterized in that: The supporting body comprises a quick-change body and a mounting plate. The quick-change body is provided with mounting holes for connecting the mechanical arm and the connecting rod. The mounting plate is vertically fixed on the quick-change body.

8. The double-lock hydraulic automatic connector according to claim 6, characterized in that: The front end of the support body is also provided with a baffle which is perpendicular to the mounting plate and the quick-change body respectively, and the baffle is used to limit the maximum movement distance of the first locking mechanism.

9. An engineering device, characterized in that: It comprises a mechanical body, accessories and a double-lock hydraulic automatic connector as described in any one of claims 1-8.

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