Connecting frame and crane

Abstract

The connecting frame comprises frame bodies, a first connecting piece and a second connecting piece, the first connecting piece and the second connecting piece are arranged at the two ends of each frame body respectively, and the first connecting piece and the second connecting piece are detachably connected so that two connecting frames to be connected can be connected; the first connecting piece comprises a first protruding part, the first protruding part is provided with a first protruding side face, the second connecting piece comprises a second protruding part, the second protruding part is provided with a second protruding side face which can abut against the first protruding side face, and the included angle between the first protruding side face and the tangential direction of rotation of the connecting frame and the included angle between the second protruding side face and the tangential direction of rotation of the connecting frame are acute angles or right angles or obtuse angles. In this way, when the connecting frames drive a heavy object to rotate, the two connected connecting frames tend to move relative to each other, the two protruding side faces can block the movement tendency, and therefore the two connected connecting frames are prevented from moving relative to each other, and the connecting stability and the using safety of the connecting frames are guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of cranes, and in particular to a connecting frame and a crane. Background Art

[0002] In the field of cranes, especially overhead cranes, the boom of a tower crane is usually assembled with multiple booms to meet the structural connection strength and transportation requirements. The connection between the booms is often made by hinged constraints or fixed constraints (such as the connection method of dowel pins + bolts). When the crane is lifting heavy objects, the boom of the crane may be shaken by external forces, causing the connection frames forming the boom to be misaligned and broken, resulting in poor stability of the boom and low safety performance. Utility Model Content

[0003] In view of this, the present application provides a connecting frame, which solves the problem of poor stability and low safety of the connecting frame. The present application also provides a crane including the connecting frame.

[0004] In order to achieve the above objectives, this application provides the following technical solutions:

[0005] A connecting frame, comprising:

[0006] The frame body includes at least two;

[0007] A first connecting member and a second connecting member are respectively arranged at two ends of each of the frame bodies, and the first connecting member and the second connecting member are detachably connected to achieve connection between the two connecting frames to be connected;

[0008] Among them, the first connecting member includes a first protrusion, and the first protrusion has a first protrusion side surface, the second connecting member includes a second protrusion, and the second protrusion has a second protrusion side surface that can abut against the first protrusion side surface, and the angles between the first protrusion side surface and the second protrusion side surface and the tangent direction of the rotation of the connecting frame are acute angles, right angles or obtuse angles.

[0009] Optionally, the angles between the first protruding side surface and the second protruding side surface and the tangent direction of the rotation of the connecting frame are both right angles.

[0010] Optionally, the first connecting member includes a first recessed portion, the second connecting member includes a second recessed portion, and the recessed end surface of the first recessed portion can abut against the raised end surface of the second raised portion, and the recessed end surface of the second recessed portion can abut against the raised end surface of the first raised portion.

[0011] Optional,

[0012] The concave end surface of the first concave portion and the convex end surface of the second convex portion are both perpendicular to the distribution direction of the plurality of connecting frames; and / or,

[0013] The concave end surface of the second concave portion and the convex end surface of the first convex portion are both perpendicular to the distribution direction of the plurality of connecting frames.

[0014] Optionally, each of the first connecting member and the second connecting member is provided with at least two, and the first protrusions of adjacent first connecting members are arranged close to each other, and the second protrusions of adjacent second connecting members are arranged far apart from each other; or the first protrusions of adjacent first connecting members are arranged far apart from each other, and the second protrusions of adjacent second connecting members are arranged close to each other.

[0015] Optionally, the first connecting member defines a first connecting hole, the second connecting member defines a second connecting hole, and a first pin passes through the first connecting hole and the second connecting hole to achieve connection between the two connecting frames.

[0016] Optionally, it also includes a pin holder disposed on the frame body for storing the first pin.

[0017] Optionally, both the first connecting member and the second connecting member are welded to the frame body.

[0018] Optionally, it further includes a first double-ear plate and a second double-ear plate respectively arranged at both ends of the frame body, and a second pin passes through the first double-ear plate and the second double-ear plate to achieve the connection between the two connecting frames to be connected.

[0019] A crane comprises any one of the connecting frames described above, wherein the boom of the crane is formed by connecting at least two of the connecting frames in sequence.

[0020] The connecting frame provided by the present application is respectively provided with a first connecting member and a second connecting member at both ends of the frame body, and the connection between the two connecting frames to be connected is conveniently achieved through the detachable connection between the first connecting member and the second connecting member; the first raised side surface of the first raised portion abuts against the second raised side surface of the second raised portion, and the angles between the first raised side surface and the second raised side surface and the tangent direction of the rotation of the connecting member are all acute angles, right angles and obtuse angles, so that when the connecting frame drives the heavy object to rotate, the two connected connecting frames will have a tendency to move relative to each other, and through the abutment of the first raised side surface and the second raised side surface, the two raised side surfaces will block the above-mentioned movement tendency, thereby avoiding relative movement of the two connected connecting frames, thereby ensuring the stability of the connection of the above-mentioned connecting frame and the safety during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0022] Figure 1 The connection frame provided for this embodiment is a three-dimensional diagram;

[0023] Figure 2 A partial enlarged view of two connected connecting frames;

[0024] Figure 3 This is an exploded view of the connecting frame.

[0025] Figure 1-Figure 3 middle:

[0026] 1-frame body, 2-first connecting piece, 3-second connecting piece, 4-first connecting hole, 5-second connecting hole, 6-first pin, 7-pin frame, 8-first double-ear plate, 9-second double-ear plate, 10-second pin;

[0027] 201-first convex portion, 202-first concave portion, 301-second convex portion, 302-second concave portion;

[0028] 2011-first raised side, 3011-second raised side. DETAILED DESCRIPTION

[0029] The present application provides a connecting frame and a crane including the connecting frame.

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] like Figure 1-Figure 3As shown, an embodiment of the present application provides a connecting frame, at least two connecting frames are connected in sequence to form a boom, and the boom is a component of a crane. The connecting frame mainly includes a frame body 1, a first connecting member 2 and a second connecting member 3. The frame body 1 includes at least two; the first connecting member 2 and the second connecting member 3 are respectively arranged at the two ends of each frame body 1, and the first connecting member 2 and the second connecting member 3 are detachably connected to realize the connection between the two connecting frames to be connected; in this way, the connection between the two connecting frames can be conveniently realized, thereby improving the connection efficiency of the crane boom.

[0032] Specifically, the first connecting member 2 includes a first protruding portion 201, and the first protruding portion 201 has a first protruding side surface 2011, the second connecting member 3 includes a second protruding portion 301, and the second protruding portion 301 has a second protruding side surface 3011 that can abut against the first protruding side surface 2011, and the angle between the first protruding side surface 2011 and the second protruding side surface 3011 and the tangent direction of the rotation of the connecting frame is an acute angle, a right angle or an obtuse angle, that is to say, it is ensured that the angle between the first protruding side surface 2011 and the second protruding side surface 3011 is not a straight angle or a zero angle, and the first protruding side surface 2011 and the second protruding side surface 3011 are not parallel to the rotation direction of the connecting frame, so that when the arm rotates and causes the two adjacent connecting frames to have a movement tendency, the first protruding side surface 2011 and the second protruding side surface 3011 abut against each other, thereby preventing relative movement between the two connecting members, avoiding relative movement of the connecting members, and ensuring the stability of the connection between the connecting members.

[0033] Exemplarily, the angle between the first raised side 2011 and the second raised side 3011 and the tangent direction of the rotation of the connecting frame can be 10°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, 100°, 120°, 130°, 150°, 160°, 170°, etc.

[0034] It should be noted that the number of the first raised side faces 2011 of the first raised portion 201 and the second raised side faces 3011 of the second raised portion 301 is not limited herein; the number of the first raised portions 201 and the second raised portions 301 is the same, and can both be one or more, and the number of the corresponding first raised side faces 2011 and the second raised side faces 3011 is also the same, and can both be one or more.

[0035] The connecting frame of the above structure conveniently realizes the connection between the two connecting frames to be connected through the detachable connection between the first connecting member 2 and the second connecting member 3; the first raised side 2011 of the first raised portion 201 and the second raised side 3011 of the second raised portion 301 abut against each other, and the angles between the first raised side 2011 and the second raised side 3011 and the tangent direction of the rotation of the connecting member are all acute angles, right angles and obtuse angles. In this way, when the connecting frame drives the heavy object to rotate, the two connected connecting frames will have a tendency to move relative to each other. Through the abutment between the first raised side 2011 and the second raised side 3011, the two raised side surfaces will block the above movement tendency, thereby avoiding relative movement of the two connected connecting frames, thereby ensuring the stability of the connection of the above connecting frame and the safety during use.

[0036] In some embodiments, the angles between the first protruding side surface 2011 and the second protruding side surface 3011 and the tangent direction of the connection frame rotation are both right angles. Specifically, it is ensured that the angles between the first protruding side surface 2011 and the second protruding side surface 3011 and the tangent direction of the connection frame rotation are both right angles, so that when the connection frame rotates, the first protruding side surface 2011 and the second protruding side surface 3011 can further prevent the tendency of relative movement between the two connected connection frames, avoid relative movement between the two connection frames, thereby further improving the stability of the connection between the connection frames, and further improving the stability of the above structure.

[0037] In some embodiments, the first connecting member 2 includes a first recessed portion 202, the second connecting member 3 includes a second recessed portion 302, and the recessed end surface of the first recessed portion 202 can abut against the raised end surface of the second raised portion 301, and the recessed end surface of the second recessed portion 302 can abut against the raised end surface of the first raised portion 201. Specifically, through the above arrangement, when the connected connecting frames are hoisting heavy objects, the two connected connecting frames will also have a tendency to move relative to each other in the vertical direction, and the above-mentioned mutually abutting connecting surfaces will prevent the above-mentioned movement tendency, thereby avoiding displacement of the two connected connecting frames, and ensuring the stability and safety of the arm connection composed of the above-mentioned connecting frames.

[0038] In addition, by providing the above-mentioned first recessed portion 202 and second raised portion 301 abutting against each other, and the second recessed portion 302 and first raised portion 201 abutting against each other, the convenience of installation between the first connecting member 2 and the second connecting member 3 can be improved, and the connection efficiency between the connecting frames can be improved.

[0039] It should be noted that the number of the concave end surface of the first concave portion 202 and the convex end surface of the second convex portion 301 is not limited, the number of the concave end surface of the first concave portion 202 and the convex end surface of the second convex portion 301 is the same, and the number of the concave end surface of the first concave portion 202 and the convex end surface of the second convex portion 301 can be one or more. Correspondingly, the number of the concave end surface of the second concave portion 302 and the convex end surface of the first convex portion 201 is not limited, the number of the concave end surface of the second concave portion 302 and the convex end surface of the first convex portion 201 is the same, and the number of the concave end surface of the second concave portion 302 and the convex end surface of the first convex portion 201 can be one or more.

[0040] In some embodiments, the concave end surface of the first concave portion 202 and the convex end surface of the second convex portion 301 are both perpendicular to the distribution direction of the plurality of connection frames; and / or, the concave end surface of the second concave portion 302 and the convex end surface of the first convex portion 201 are both perpendicular to the distribution direction of the plurality of connection frames. Specifically, ensuring that the concave end surface and the convex end surface are perpendicular can better ensure the stability and safety of the connection frame when rotating or hoisting heavy objects, and can increase the service life of the connection frame.

[0041] In this embodiment, an optional implementation is provided, in which the concave end surface of the first concave portion 202 and the convex end surface of the second convex portion 301 are both perpendicular to the distribution direction of the plurality of connection frames.

[0042] Another optional implementation is also provided in this embodiment, in which the concave end surface of the second concave portion 302 and the convex end surface of the first convex portion 201 are both perpendicular to the distribution direction of the multiple connection frames.

[0043] In this embodiment, another optional implementation is also provided, in which the recessed end surface of the first recessed portion 202 and the raised end surface of the second raised portion 301 are both perpendicular to the distribution direction of the multiple connecting frames; and the recessed end surface of the second recessed portion 302 and the raised end surface of the first raised portion 201 are both perpendicular to the distribution direction of the multiple connecting frames.

[0044] In some embodiments, at least two first connectors 2 and second connectors 3 are provided, and the first protrusions 201 of adjacent first connectors 2 are arranged close to each other, and the second protrusions 301 of adjacent second connectors 3 are arranged far apart; or the first protrusions 201 of adjacent first connectors 2 are arranged far apart, and the second protrusions 301 of adjacent second connectors 3 are arranged close to each other. Specifically, at least two first connectors 2 and second connectors 3 are provided, so that the stability of the connection between adjacent connecting frames can be further improved. Furthermore, ensuring that adjacent first protrusions 201 are arranged close to each other, and adjacent second protrusions 301 are arranged far apart; or adjacent first protrusions 201 are arranged far apart, and adjacent second protrusions 301 are arranged close to each other, can make the adjacent connection parts bear opposite forces when the connecting frame rotates or hoisting heavy objects, thereby further improving the stability of the connection between adjacent connecting frames and improving the stability of the connection between the connecting frames.

[0045] In some embodiments, the first connecting member 2 is provided with a first connecting hole 4, the second connecting member 3 is provided with a second connecting hole 5, and the first pin 6 passes through the first connecting hole 4 and the second connecting hole 5 to realize the connection between the two connecting frames. Specifically, the adjacent connecting frames are connected by pins, which can improve the convenience of connection between the connecting frames, facilitate disassembly and assembly, and improve the disassembly and assembly efficiency, compared with the method of connecting by high-strength bolts in the prior art (high-strength bolts have high installation requirements and must be scrapped after only two uses). In addition, since the first recessed portion 202 and the second raised portion 301 and the second recessed portion 302 and the first raised portion 201 share the force of the first pin 6, the force of the first pin 6 is reduced, which can further improve the safety of the connection, and can also avoid process maintenance, and reduce costs, so that the use effect of the connecting frame is significantly improved.

[0046] When the frame body 1 is connected, the first connection hole 4 and the second connection hole 5 are aligned in the vertical direction, and the first pin shaft 6 passes through the first connection hole 4 and the second connection hole 5 from top to bottom, that is, the first pin shaft 6 is installed along the deadweight direction, so that the first pin shaft 6 can be prevented from falling off and falling off under the action of its own gravity, reducing the risk of connection failure. Furthermore, one end of the first pin shaft 6 that passes through the first connection hole 4 and the second connection hole 5 is passed through by a pin pin to better prevent the first pin shaft 6 from falling off from the first connection hole 4 and the second connection hole 5.

[0047] In some embodiments, a pin shaft rack 7 is further included, which is arranged on the frame body 1 and is used to store the first pin shaft 6. Specifically, the pin shaft rack 7 is arranged on the frame body 1, and when assembling adjacent connecting frames, the pin shaft can be quickly inserted into the connecting hole between the first connecting member 2 and the second connecting member 3, so as to quickly realize the installation between the connecting frames. After the pin shaft is removed from the connecting frame, the pin shaft is placed on the pin shaft rack 7, so that the pin shaft can be easily removed and the probability of the pin shaft being lost can be reduced.

[0048] In some embodiments, the first connector 2 and the second connector 3 are both welded to the frame body 1. Specifically, the first connector 2 and the second connector 3 are welded to both ends of the frame body 1, respectively, so that the stability of the connection between the first connector 2 and the second connector 3 and the frame body 1 can be improved, and the stability of the connection between the connected frames can be improved.

[0049] It should be noted that the connection method between the first connecting member 2 and the second connecting member 3 and the frame body 1 is not limited herein. For example, the first connecting member 2 and the second connecting member 3 and the frame body 1 can also be connected by one of the connection methods such as bolt connection, pin connection, snap connection, magnetic connection, or a combination thereof.

[0050] In some embodiments, the frame body 1 further includes a first double-ear plate 8 and a second double-ear plate 9 respectively disposed at both ends of the frame body 1, and a second pin 10 passes through the first double-ear plate 8 and the second double-ear plate 9 to achieve the connection between the two connecting frames to be connected. Exemplarily, the frame body 1 includes a plurality of connecting rods, wherein the first connecting member 2 and the second connecting member 3 are respectively disposed at both ends of some connecting rods, and the first double-ear plate 8 and the second double-ear plate 9 are respectively disposed at both ends of some connecting rods, wherein the second pin 10 is used to achieve a detachable connection between the first double-ear plate 8 and the second double-ear plate 9. Here, different forms of connection structures are disposed at both ends of the connecting frame, which can improve the stability of the boom structure when the connecting frames are sequentially connected to form an arm frame, and further improve the safety of the above structure.

[0051] A crane comprises any one of the above-mentioned connecting frames, wherein the boom of the crane is formed by connecting at least two connecting frames in sequence. Since the crane comprises the boom, and the boom comprises the above-mentioned connecting frame, the beneficial effects of the crane brought by the connecting frame can be seen from the above content and will not be repeated here.

[0052] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0053] The block diagrams of the devices, apparatuses, equipment, and systems involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagram. As will be appreciated by those skilled in the art, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, referring to "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to", and can be used interchangeably with them.

[0054] It should also be noted that in the apparatus, device and method of the present application, each component or each step can be decomposed and / or recombined. Such decomposition and / or recombination should be regarded as equivalent solutions of the present application.

[0055] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0056] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth" and "sixth" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0057] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

Claims

1. A connecting frame, characterized in that: include: The frame body includes at least two; A first connecting member and a second connecting member are respectively arranged at two ends of each of the frame bodies, and the first connecting member and the second connecting member are detachably connected to achieve connection between the two connecting frames to be connected; Among them, the first connecting member includes a first protrusion, and the first protrusion has a first protrusion side surface, the second connecting member includes a second protrusion, and the second protrusion has a second protrusion side surface that can abut against the first protrusion side surface, and the angles between the first protrusion side surface and the second protrusion side surface and the tangent direction of the rotation of the connecting frame are acute angles, right angles or obtuse angles.

2. The connecting frame according to claim 1, characterized in that: The included angles between the first protruding side surface and the second protruding side surface and the tangent direction of the rotation of the connecting frame are both right angles.

3. The connecting frame according to claim 1, characterized in that: The first connecting member includes a first recessed portion, the second connecting member includes a second recessed portion, and the recessed end surface of the first recessed portion can abut against the raised end surface of the second raised portion, and the recessed end surface of the second recessed portion can abut against the raised end surface of the first raised portion.

4. The connecting frame according to claim 3, characterized in that: The concave end surface of the first concave portion and the convex end surface of the second convex portion are both perpendicular to the distribution direction of the plurality of connecting frames; and / or, The concave end surface of the second concave portion and the convex end surface of the first convex portion are both perpendicular to the distribution direction of the plurality of connecting frames.

5. The connecting frame according to claim 1, characterized in that: Each of the first connecting member and the second connecting member is provided with at least two, and the first protrusions of adjacent first connecting members are arranged close to each other, and the second protrusions of adjacent second connecting members are arranged far apart; or the first protrusions of adjacent first connecting members are arranged far apart, and the second protrusions of adjacent second connecting members are arranged close to each other.

6. The connecting frame according to claim 1, characterized in that: The first connecting member defines a first connecting hole, the second connecting member defines a second connecting hole, and a first pin passes through the first connecting hole and the second connecting hole to realize the connection between the two connecting frames.

7. The connecting frame according to claim 6, characterized in that: It also includes a pin shaft rack which is arranged on the frame body and is used to store the first pin shaft.

8. The connecting frame according to claim 1, characterized in that: The first connecting member and the second connecting member are both welded to the frame body.

9. The connecting frame according to claim 1, characterized in that: It also includes a first double-ear plate and a second double-ear plate respectively arranged at both ends of the frame body, and a second pin passes through the first double-ear plate and the second double-ear plate to achieve the connection between the two connecting frames to be connected.

10. A crane, characterized in that: Comprising the connecting frame as described in any one of claims 1 to 9, the boom of the crane is formed by connecting at least two of the connecting frames in sequence.

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