Hinge and excavator
By introducing a combination of limiting and elastic components into the hinge of a hydraulic excavator, the problems of complex and unsightly hinge limiting mechanisms are solved, achieving automatic limiting and locking of the hinge and improving its aesthetics. This method is suitable for mechanical structures in confined spaces.
Patent Information
- Application Number
- CN202423323521.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the existing hydraulic excavator hinge structure, the hinge plate can rotate at any angle, and the limiting mechanism is complex to manufacture and has poor aesthetics, making it difficult to meet the requirements of narrow space applications.
By employing a combination of limiting components and elastic components, the hinge is automatically limited and locked through the cooperation of the limiting components and the stop, while the hinge is effectively limited by the change in the elastic force of the elastic components.
It achieves automatic limit locking of the hinge, improves the aesthetics of the hinge, and meets the requirements of mechanical structure applications in narrow spaces.
Smart Images
Figure CN223724397U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of mechanical connection structure, and particularly relates to a hinge and excavator. BACKGROUND
[0002] The hinge is also called a hinge, which is a mechanical device for connecting two objects and enabling rotation between the two objects. The hinge generally includes two hinge plates, which are rotationally connected through a rotating shaft.
[0003] At present, in the hinge structure of the hydraulic excavator, the rotation angle between the two hinge plates is generally arbitrary, and a wind hook is generally used as a hinge limiting mechanism. However, this requires a high hinge space, and the opening limiting of the hinge is achieved by welding a limiting block outside the hinge plate sleeve, which has a complex processing technology and makes the overall appearance of the hinge worse. CONTENT OF THE UTILITY MODEL
[0004] The present application provides a hinge and excavator, which can limit the rotation angle of the hinge.
[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical solutions:
[0006] The first aspect of the present application provides a hinge, which comprises:
[0007] A first hinge having a stop portion;
[0008] A second hinge hingedly connected to the first hinge;
[0009] A limiting member fixedly connected to the first hinge, and the limiting member is rotatable relative to the first hinge about a first rotation axis;
[0010] An elastic member connected between the first hinge and the limiting member, and the elastic force direction of the elastic member changes with the rotation of the limiting member. When the second hinge is in a closed position, the second hinge intersects with the first hinge, and the limiting member abuts against the second hinge. When the second hinge is rotated from the closed position to an open position, the limiting member is rotated to abut against the stop portion under the driving of the elastic member and the rotation of the second hinge.
[0011] In a possible implementation manner, the limiting member comprises a first limiting segment, a second limiting segment, and a rotation connecting portion connected between the first limiting segment and the second limiting segment. The limiting member is rotationally connected to the first hinge through the rotation connecting portion, and the elastic member is elastically connected between the first limiting segment and the first hinge.
[0012] When the second hinge is in the closed position, the first limiting segment is in abutment with the second hinge, and when the second hinge is rotated from the closed position to an open position, the second limiting segment is rotated to abut the stop portion under the driving of the elastic member, so that the first limiting segment abuts and locks the second hinge in the open position.
[0013] In a possible implementation, when the first limiting segment and / or the second limiting segment is driven to rotate in the clockwise direction towards the stop portion, the elastic force direction of the elastic member is changed from the side close to the second hinge to the side away from the second hinge, so that the first limiting segment abuts the stop portion to unlock the second hinge.
[0014] In a possible implementation, the first limiting segment is provided with a fixing hole, the first hinge is provided with a fixing pin, and the elastic member is elastically connected between the fixing hole and the fixing pin.
[0015] In a possible implementation, the first hinge is provided with a first shaft hole, and the rotating connecting portion is provided with a second shaft hole, and the rotating connecting portion is rotatably connected to the first hinge through a second rotating shaft penetrating the first shaft hole and the second shaft hole.
[0016] In a possible implementation, the stop portion is a limiting flange, and the limiting flange is arranged on a first side of the first hinge, and the first side is located on the side away from the second hinge along the width direction of the first hinge.
[0017] In a possible implementation, the first limiting segment of the limiting member is further provided with an operating rod, and the operating rod extends away from the first hinge.
[0018] In a possible implementation, the first hinge comprises a first main body and a first sleeve arranged on one side of the first main body, and the second hinge comprises a second main body and a second sleeve arranged on one side of the second main body, and the second hinge is hingedly connected to the first hinge through a first rotating shaft penetrating the inner cavities of the first sleeve and the second sleeve.
[0019] In a possible implementation, the first sleeve comprises a plurality of first sleeve segments arranged on one side of the first main body at intervals, and the second sleeve comprises a plurality of second sleeve segments arranged on one side of the second main body at intervals, and the first sleeve segments and the second sleeve segments are staggered along the length direction of the first main body, so that the first rotating shaft penetrates the first sleeve segments and the second sleeve segments.
[0020] At least one of the first barrel segments is provided with a blocking portion extending towards one side of the first barrel segment along the axial direction of the barrel segment, and at least one of the second barrel segments is provided with a cutout corresponding to the blocking portion, and the blocking portion is configured to abut against the cutout during rotation of the second hinge to limit the rotation angle of the second hinge.
[0021] The hinge provided in the first aspect of the present application has at least the following beneficial effects:
[0022] By providing the limiting member and the elastic member on the first hinge, the second hinge is effectively limited and locked during switching between the closed position and the open position by cooperation of the limiting member and the blocking portion on the first hinge, and the automatic limiting and locking of the hinge is realized by the elastic member, which increases the practical hinge closing limiting function of the hinge and meets the application of mechanical structures in various narrow spaces.
[0023] The second aspect of the present application provides a excavator comprising the hinge provided in any of the technical solutions.
[0024] The excavator provided in the second aspect of the present application has all the beneficial effects of the hinge provided in the first aspect of the present application, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0026] Figure 1 The structural schematic diagram of the hinge provided in the embodiment of the present application (closed position);
[0027] Figure 2 The exploded structural schematic diagram of the hinge provided in the embodiment of the present application;
[0028] Figure 3 The structural schematic diagram of the first hinge in the embodiment; Figure 2
[0029] The structural schematic diagram of the second hinge in the embodiment; Figure 4 Figure 2 The structural schematic diagram of the limiting member in the embodiment;
[0030] Figure 5 Figure 2 The structural schematic diagram of the limiting member in the embodiment;
[0031] Figure 6 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application;
[0032] Figure 7 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application; Figure 6 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application;
[0033] Figure 8 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application; Figure 6 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application;
[0034] Figure 9 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application;
[0035] Figure 10 Structure schematic diagram of the hinge in the open position provided by the embodiment of the present application.
[0036] Legend of reference signs:
[0037] 100, first hinge; 110, stop portion; 111, limiting flange; 120, fixing pin; 130, first shaft hole; 140, first main body; 150, first sleeve; 151, first sleeve section; 1511, blocking portion; 160, first side edge; 170, fixing pin hole; 200, second hinge; 210, second main body; 220, second sleeve; 221, second sleeve section; 2211, cutout; 230, first rotation shaft; 240, gasket; 250, elastic pin; 260, second rotation shaft; 300, limiting member; 310, first limiting section; 311, fixing hole; 320, second limiting section; 330, rotation connecting portion; 331, second shaft hole; 340, operating rod; 350, first rotation axis; 400, elastic member.
[0038] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0039] As described in the background, in the hinge structure of a hydraulic excavator, the rotation angle between two hinge leaves is usually arbitrary, and a wind hook is generally used as a limiting mechanism of the hinge, but this requires a higher space for the hinge, and the opening limiting of the hinge is achieved by welding a limiting block outside the hinge plate sleeve, which is complex in processing technology, and the limiting block is exposed outside the hinge, which reduces the overall aesthetic appearance.
[0040] In order to solve the above technical problems, the hinge provided by the embodiment of the present application comprises a first hinge having a stop portion, a second hinge connected to the first hinge, a limiting member fixedly connected to the first hinge and capable of rotating about a first rotation axis relative to the first hinge, and an elastic member connected between the first hinge and the limiting member and capable of changing the elastic force direction with the rotation of the limiting member. When the second hinge is in the closed position, the second hinge intersects with the first hinge, and the limiting member abuts against the second hinge. When the second hinge rotates from the closed position to the open position, the limiting member rotates to abut against the stop portion under the driving of the elastic member.
[0041] In order to make the above objectives, characteristics and advantages of the embodiments of the present application more apparent, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0042] In combination with Figures 1 to 10 The hinge provided by the embodiment of the present application comprises a first hinge having a stop portion, a second hinge connected to the first hinge, a limiting member fixedly connected to the first hinge and capable of rotating about a first rotation axis relative to the first hinge, and an elastic member connected between the first hinge and the limiting member and capable of changing the elastic force direction with the rotation of the limiting member. When the second hinge is in the closed position, the second hinge intersects with the first hinge, and the limiting member abuts against the second hinge. When the second hinge rotates from the closed position to the open position, the limiting member rotates to abut against the stop portion under the driving of the elastic member.
[0043] In this way, through the limiting member and the elastic member provided on the first hinge, when the second hinge rotates relative to the first hinge between the closed position and the open position, the second hinge is effectively limited and locked by the cooperation of the limiting member and the stop portion provided on the first hinge, and the hinge is automatically limited and locked by the elastic member in the process, thereby increasing the practical hinge closing limiting function of the hinge and meeting the application of mechanical structures in various narrow spaces.
[0044] In some embodiments, the limiting piece 300 comprises a first limiting section 310, a second limiting section 320, and a rotating connecting part 330 connected between the first limiting section 310 and the second limiting section 320, the limiting piece 300 is rotatably connected to the first hinge 100 through the rotating connecting part 330, and the elastic piece is elastically connected between the first limiting section 310 and the first hinge 100.
[0045] When the second hinge 200 is in the closed position, the first limiting section 310 abuts against the second hinge 200, and when the second hinge 200 is rotated from the closed position to the open position, the second limiting section 320 is rotated to abut against the stop part 110 under the driving of the elastic piece, so that the first limiting section 310 abuts against and locks the second hinge 200 in the open position.
[0046] In some embodiments, when the first limiting section 310 and / or the second limiting section 320 is forced to rotate in the clockwise direction towards the stop part 110, the elastic force direction of the elastic piece is changed from the side close to the second hinge 200 to the side away from the second hinge 200 along the first rotating axis 350, so that the first limiting section 310 abuts against the stop part 110 to unlock the second hinge 200.
[0047] In some embodiments, the elastic piece is a tension spring, and the tension spring can be a long-arm small hook ring tension spring or a connected hook ring tension spring, which has high support strength and stability.
[0048] In some embodiments, the first limiting section 310 is provided with a fixing hole 311, the first hinge 100 is provided with a fixing pin 120 and a pin hole, the fixing pin 120 is fixedly connected to the pin hole, and the tension spring is elastically connected between the fixing hole 311 and the fixing pin 120, i.e., one end of the tension spring is connected to the fixing hole 311, and the other end of the tension spring is connected to the fixing pin 120.
[0049] In some embodiments, the first hinge 100 is provided with a first shaft hole 130, the rotating connecting part 330 has a second shaft hole 331, and the rotating connecting part 330 is rotatably connected to the first hinge 100 through a second rotating shaft 260 penetrating the first shaft hole 130 and the second shaft hole 331.
[0050] In some embodiments, the stop part 110 is a limiting flange 111, and the limiting flange 111 is arranged on the first side edge 160 of the first hinge 100 along the width direction of the first hinge 100, and the first side edge 160 is located on the side away from the second hinge 200.
[0051] It can be understood that the above description is only a specific implementation of the present application. Figure 1, the second hinge 200 is in the closed position, and the limiting member 300 is always in abutment with the second hinge 200 under the action of the elastic member. Further, in combination with Figure 6 When the hinge is switched from the closed state to the open state, i.e., the second hinge 200 is rotated to the open position at which the second hinge 200 is at a flat angle with the first hinge 100, the limiting member 300 is in abutment with the lower part of the limiting flange 111 under the action of the elastic member. In this way, when the hinge is subjected to external force in an unexpected situation, the limiting member 300 can limit the rotation of the second hinge 200 relative to the first hinge 100.
[0052] In more examples, the first limiting section 310 of the limiting member 300 is further provided with an operating rod 340 extending away from the first hinge. The operating rod is used to be driven to rotate the limiting member 300, so as to facilitate the operator to rotate the limiting member 300 through the operating rod 340 to unlock the limiting rod when the hinge is in the open state, i.e., the limiting member 300 is rotated to abut against the upper part of the limiting flange 111, and then the hinge is closed, so that the second hinge 200 is rotated to the closed position, as shown in Figures 8 to 10 .
[0053] In some embodiments, the first hinge 100 includes a first body 140 and a first sleeve 150 arranged on one side of the first body 140, and the second hinge 200 includes a second body 210 and a second sleeve 220 arranged on one side of the second body 210. The second hinge 200 is hinged to the first hinge 100 through a first rotating shaft 230 arranged in the inner cavity of the first sleeve 150 and the inner cavity of the second sleeve 220.
[0054] In some embodiments, the first sleeve 150 includes a plurality of first sleeve sections 151 arranged at intervals on one side of the first body 140, and the second sleeve 220 includes a plurality of second sleeve sections 221 arranged at intervals on one side of the second body 210. Along the length direction of the first body 140, the first sleeve sections 151 and the second sleeve sections 221 are staggered arranged, so that the first rotating shaft 230 is arranged through the first sleeve sections 151 and the second sleeve sections 221. For example, the first sleeve sections 151 are four, and the second sleeve sections 221 are five.
[0055] At least one first barrel section 151 is provided with a blocking portion 1511 extending towards one side of the first barrel section 151 in the axial direction of the barrel section, and at least one second barrel section 221 is provided with a cutout 2211 corresponding to the blocking portion 1511, the blocking portion 1511 is configured to abut against the cutout 2211 during rotation of the second hinge 200 to limit the rotation angle of the second hinge 200. For example, the first barrel section 151 at both ends of the first body 140 of the first hinge 100 is provided with the blocking portion 1511 in the length direction of the first hinge 100, and the second barrel section 221 at both ends of the second body 210 of the second hinge 200 is provided with the cutout 2211. In this way, the cooperation of the blocking portion 1511 and the cutout 2211 at both ends of the first hinge 100 and the second hinge 200 in the length direction forms a clamping structure, thereby limiting the maximum angle of rotation opening of the second hinge 200 relative to the first hinge 100, and the structure is simple in appearance and convenient to process.
[0056] In a second aspect, the embodiments of the present application provide a excavator comprising the hinge provided by any of the embodiments of the first aspect.
[0057] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0058] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.
[0059] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0060] In the present application, unless specifically stated and limited otherwise, a first feature "on" or "under" a second feature can be directly contacting the first and second features, or indirectly contacting the first and second features through an intermediate medium. Also, a first feature "over", "above" and "on top of" a second feature can be directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. A first feature "under", "below" and "underneath" a second feature can be directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.
[0061] The embodiments or implementations in the present specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be mutually referred to.
[0062] It should be noted that the embodiments referred to in the specification as "one embodiment", "an embodiment", "example embodiment", "some embodiments" and the like can include a specific feature, structure or characteristic, but not necessarily every embodiment. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when a specific feature, structure or characteristic is described in combination with an embodiment, it is within the knowledge of those skilled in the art to realize such feature, structure or characteristic in combination with other embodiments, whether explicitly described or not.
[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and such modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A hinge, characterized in that, The utility model provides a hinge, which comprises: a first hinge (100) having a stop portion (110); a second hinge (200) hingedly connected to the first hinge (100); a limiting member (300) fixedly connected to the first hinge (100) and rotatable relative to the first hinge (100) about a first rotation axis (350); a resilient member connected between the first hinge (100) and the limiting member (300), and the elastic force direction of the resilient member changes with the rotation of the limiting member (300); when the second hinge (200) is in a closed position, the second hinge (200) intersects with the first hinge (100), and the limiting member (300) abuts against the second hinge (200); when the second hinge (200) rotates from the closed position to an open position, the limiting member (300) rotates with the second hinge (200) under the driving of the resilient member and abuts against the stop portion (110).
2. Hinge according to claim 1, characterized in that The limiting member (300) comprises a first limiting section (310), a second limiting section (320), and a rotation connecting portion (330) connected between the first limiting section (310) and the second limiting section (320); the limiting member (300) is rotatably connected to the first hinge (100) through the rotation connecting portion (330); and the resilient member is elastically connected between the first limiting section (310) and the first hinge (100). When the second hinge (200) is in the closed position, the first limiting section (310) abuts against the second hinge (200); when the second hinge (200) rotates from the closed position to the open position, the second limiting section (320) rotates with the second hinge (200) under the driving of the resilient member and abuts against the stop portion (110), so that the first limiting section (310) abuts against and locks the second hinge (200) in the open position.
3. Hinge according to claim 2, characterized in that When the first limiting section (310) and / or the second limiting section (320) are forced to rotate in the clockwise direction towards the stop portion (110), the elastic force direction of the resilient member changes from the side close to the second hinge (200) of the first rotation axis (350) to the side away from the second hinge (200) of the first rotation axis (350), so that the first limiting section (310) abuts against the stop portion (110) to unlock the second hinge (200).
4. The hinge of claim 2, wherein The first limiting section (310) is provided with a fixing hole (311), the first hinge (100) is provided with a fixing pin (120), and the resilient member is elastically connected between the fixing hole (311) and the fixing pin (120).
5. The hinge of claim 2, wherein The first hinge (100) is provided with a first shaft hole (130), and the rotating connecting part (330) has a second shaft hole (331), and the rotating connecting part (330) is rotatably connected to the first hinge (100) through a second rotating shaft (260) penetrating the first shaft hole (130) and the second shaft hole (331).
6. Hinge according to any of claims 1-5, characterized in that The stop part (110) is a limiting flange (111) arranged on a first side edge (160) of the first hinge (100), and the first side edge (160) is located on a side away from the second hinge (200) along a width direction of the first hinge (100).
7. Hinge according to any of claims 1-5, characterized in that The first limiting section (310) of the limiting part (300) is further provided with an operating rod (340) extending away from the first hinge (100).
8. Hinge according to any of claims 1-5, characterized in that The first hinge (100) comprises a first main body (140) and a first sleeve (150) arranged on one side of the first main body (140), and the second hinge (200) comprises a second main body (210) and a second sleeve (220) arranged on one side of the second main body (210), and the second hinge (200) is hinged to the first hinge (100) through a first rotating shaft (230) penetrating the inner cavities of the first sleeve (150) and the second sleeve (220).
9. Hinge according to claim 8, characterized in that The first sleeve (150) comprises a plurality of first sleeve segments (151) arranged on one side of the first main body (140) at intervals, and the second sleeve (220) comprises a plurality of second sleeve segments (221) arranged on one side of the second main body (210) at intervals, and the first sleeve segments (151) and the second sleeve segments (221) are staggered along the length direction of the first main body (140) so that the first rotating shaft (230) penetrates the first sleeve segments (151) and the second sleeve segments (221). At least one of the first sleeve segments (151) is provided with a blocking part (1511) extending away from the first sleeve segment (151) along the axial direction of the sleeve segment, and at least one of the second sleeve segments (221) is provided with a cutout (2211) corresponding to the blocking part (1511), and the blocking part (1511) is configured to abut against the cutout (2211) during the rotation of the second hinge (200) to limit the rotation angle of the second hinge (200).
10. An excavator characterized by comprising: The hinge comprises the hinge according to any one of claims 1-9. The hinge comprises the hinge according to any one of claims 1-9.