CN215364492U - Anti-loosening clamping pin, coupler comprising clamping pin and engineering machinery - Google Patents
Anti-loosening clamping pin, coupler comprising clamping pin and engineering machinery Download PDFInfo
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- CN215364492U CN215364492U CN202120866480.5U CN202120866480U CN215364492U CN 215364492 U CN215364492 U CN 215364492U CN 202120866480 U CN202120866480 U CN 202120866480U CN 215364492 U CN215364492 U CN 215364492U
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- pin
- connecting hole
- bayonet
- hole
- coupler
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- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to a locking bayonet, a coupler comprising the bayonet and engineering machinery, wherein the bayonet comprises a pin boss, a pin shaft and an elastic locking part; the two side surfaces of the pin seat are provided with a first connecting hole and a second connecting hole, and the circle center of the first connecting hole is not overlapped with the circle center of the second connecting hole; the pin shaft is fixedly connected with the pin seat; the locking part has a first end and a second end, and the first end and the second end respectively extend into the first connecting hole and the second connecting hole to form a spiral structure. The vertical distance between the circle center of the first connecting hole and the circle center of the second connecting hole is larger than the spiral pitch of the locking part, so that the locking part is elastically deformed to generate locking force, and the pin shaft is prevented from being loosened. Moreover, the clamping pin can be conveniently detached, the time for replacing the tool is shortened, the labor intensity is reduced, and meanwhile, safety accidents can be avoided.
Description
Technical Field
The utility model relates to the technical field of engineering machinery, in particular to an anti-loosening bayonet lock, a coupler comprising the bayonet lock and the engineering machinery.
Background
In a stamping workshop of a vehicle, engineering machinery such as a crane is usually required to assist allocation and transportation operations, for example, allocation and transportation operations such as die lifting, spare part lifting, cross-car lifting, coil lifting and the like, one engineering machinery generally needs to bear various operation tasks, and the various operation tasks need to be realized through different tools, so that the work on the engineering machinery needs to be frequently replaced.
The two operations of the coil and the die are different in the requirement on the freedom degree of the engineering machinery lifting appliance, the coil is required to be incapable of rotating freely by the coupler, and the die is required to be capable of rotating 360 degrees by the coupler, so that a tool for limiting the freedom degree of the coupler is required to be arranged on the coupler.
In the prior art, a tool is usually fastened by bolts and nuts, so that the purpose of limiting the freedom degree of the coupler is achieved. However, when handling different articles, need frequently to use hexagonal spanner dismouting bolt and nut to change the frock in order to adapt to the hoist and mount demand, must increase the length of time and staff's intensity of labour who change the frock like this, still have certain potential safety hazard even.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-loosening clamping pin, a coupler comprising the clamping pin and engineering machinery, and aims to solve the problems that in the prior art, a hexagonal wrench is frequently used for disassembling and assembling bolts and nuts to replace a tool, so that the tool replacement time and labor intensity are increased, and even certain potential safety hazards exist.
In order to achieve the purpose, the utility model provides the following technical scheme:
in a first aspect, the present invention provides a bayonet for securing against removal, the bayonet comprising:
the pin base is provided with a first connecting hole and a second connecting hole on two side surfaces, and the circle center of the first connecting hole is not overlapped with the circle center of the second connecting hole;
the pin shaft is fixedly connected with the pin seat, and the pin seat has a larger width or diameter than the pin shaft;
the locking part is provided with a first end and a second end, and the first end and the second end respectively extend into the first connecting hole and the second connecting hole to form a spiral structure;
wherein a vertical distance between a center of the first connection hole and a center of the second connection hole is greater than a spiral pitch of the locking part; when a certain part of the locking part is in contact with the pin shaft, part of the pin shaft is positioned outside the range covered by the locking part.
With reference to the first aspect, in a first possible embodiment, a ratio of a vertical distance between a center of the first connection hole and a center of the second connection hole to the locking portion helical pitch is (1.9-2.1): 1.
with reference to the first aspect or the first possible embodiment, in a second possible embodiment, the locking portion is a single-turn coil spring.
With reference to the second possible implementation of the first aspect, in a third possible implementation, the aperture of the first connection hole is 0.4-0.6mm larger than the wire diameter of the first end of the coil spring;
the aperture of the second connecting hole is 0.4-0.6mm larger than the wire diameter of the second end of the spiral spring.
With reference to the second possible implementation manner or the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the ratio of the depth of the first connection hole to the wire diameter of the first end of the coil spring is (1-2): 1;
the ratio of the depth of the second connecting hole to the wire diameter of the second end of the spiral spring is (1-2): 1.
With reference to any one of the second to fourth possible embodiments of the first aspect, in a fifth possible embodiment, a ratio of a wire diameter of the coil spring to an outer diameter of the coil spring is 1: (14.5-15.5).
With reference to the first aspect, in a seventh possible embodiment, the longitudinal section of the pin boss is fan-shaped.
In a second aspect, the present invention further provides a coupler, including:
a coupler body having a hook portion and a vertical portion;
the mounting part is connected with the vertical part, and a pin hole is formed in the mounting part;
the locking part is arranged on the pin hole, and the locking part is arranged on the pin hole and can be used for locking the pin hole.
In a third aspect, the utility model further provides engineering machinery, and the coupler in the embodiment is mounted on the engineering machinery.
With reference to the third aspect, in a first possible embodiment, the work machine is a crane.
The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:
the utility model provides a locking bayonet which is prevented from loosening, comprising a pin seat, a pin shaft and an elastic locking part; the two side surfaces of the pin seat are provided with a first connecting hole and a second connecting hole, and the circle center of the first connecting hole is not overlapped with the circle center of the second connecting hole; the pin shaft is fixedly connected with the pin seat, and the pin shaft has a smaller width or diameter than the pin seat; the locking part has a first end and a second end, and the first end and the second end respectively extend into the first connecting hole and the second connecting hole to form a spiral structure. The distance between the circle center of the first connecting hole and the circle center of the second connecting hole is larger than the spiral pitch of the locking portion, when a certain part of the locking portion is in contact with the pin shaft, part of the pin shaft is located outside the range covered by the locking portion, so that the locking portion can be elastically deformed to generate locking force, and the pin shaft is prevented from being loosened. Moreover, the clamping pin can be conveniently detached, the time for replacing the tool is shortened, the labor intensity is reduced, and meanwhile, safety accidents can be avoided.
In addition to the technical problems solved by the present invention, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions, the present invention provides an anti-loose locking pin, a coupler and a construction machine including the locking pin, other technical problems solved by the present invention, other technical features included in the technical solutions, and advantages brought by the technical features, which will be described in further detail in specific embodiments.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a locking pin according to an embodiment of the present invention;
FIG. 2 is a front view of the locking detent provided by an embodiment of the present invention;
FIG. 3 is a side view of a locking bayonet provided in accordance with an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a locking device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a coupler according to another embodiment of the present invention.
Description of reference numerals:
1-a car coupler;
10-bayonet lock;
11, a pin seat;
111-a first connection aperture;
112-second connection hole;
12-a pin shaft;
13-a locking portion;
131-a first end;
132-a second end;
20-a coupler body;
21-a vertical portion;
22-a hook portion;
30-a mounting portion;
and (40) assembling.
Detailed Description
The embodiments or implementation schemes are described in a progressive mode in the specification, each embodiment focuses on differences from other embodiments, and the same parts and the similar parts among the embodiments are referred to each other.
In the description of the present specification, reference to the description of the terms "one embodiment", "some embodiments", "an illustrative embodiment", "an example", "a specific example", or "some examples", etc., means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the fuel tank of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the prior art, a tool is usually fastened by bolts and nuts, so that the purpose of limiting the freedom degree of the coupler is achieved. However, when handling different articles, need frequently to use hexagonal spanner dismouting bolt and nut to change the frock in order to adapt to the hoist and mount demand, must increase the length of time and staff's intensity of labour who change the frock like this, still have certain potential safety hazard even.
In order to solve the problems that in the prior art, a hexagonal wrench is frequently used for dismounting a bolt and a nut to replace a tool, so that the time and labor intensity of tool replacement are increased, and even certain potential safety hazards exist, the utility model provides the anti-loosening bayonet lock. Moreover, the clamping pin can be conveniently detached, the time for replacing the tool is shortened, the labor intensity is reduced, and meanwhile, safety accidents can be avoided.
Referring first to fig. 1-4, an embodiment of the present invention provides a locking bayonet 10, which includes a pin base 11, a pin 12, a locking portion 13 with elasticity, and the like.
The two side surfaces of the pin boss 11 are provided with a first connection hole 111 and a second connection hole 112, and the circle center of the first connection hole 111 does not coincide with the circle center of the second connection hole 112, it can be understood that the horizontal plane where the circle center of the first connection hole 111 is located is higher than or lower than the horizontal plane where the circle center of the second connection hole is located, and the two circle centers are not communicated, so as to be connected with the locking portion 13 having a spiral structure.
To facilitate the connection of the pin holder 11 with the locking portion 13, in a possible embodiment, the aperture D of the first connection hole 1111Diameter d of the first end 131 of the locking part 1310.4-0.6mm in size. Illustratively, in one particular embodiment, the aperture D of the first connection aperture 11112.5mm, the wire diameter d of the first end 131 of the locking part 131Is 2.0 mm.
Similarly, the diameter D of the second connection hole 1121Aperture D with the first connection hole 1112Equal, i.e. the diameter D of the second connection hole 1122Is smaller than the line diameter d of the second end 132 of the locking part 1320.4-0.6mm in size. Illustratively, in one particular embodiment, the diameter D of the second connecting hole 11222.5mm, then locking part13 second end 132 wire diameter d2Is 2.0 mm.
In other possible embodiments, the aperture of the first connection hole 111 may be different from that of the second connection hole 112 as long as D can be satisfied1Ratio d10.4-0.6mm and D2Ratio d2The size of the product is 0.4-0.6 mm.
Furthermore, in order to be able to make the connection of the locking portion 13 with the pin seat 11 more secure, in a possible embodiment, the depth L of the first connection hole 1111Diameter d of wire with the first end 131 of the locking part 131The proportion is (1-2): 1. illustratively, the wire diameter d of the first end 131 of the locking portion 131Is 2.0mm, the depth L of the first connection hole 1111May be, but is not limited to, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4.0 mm.
Likewise, the depth L of the first connection hole 1111Depth L of second connection hole 1122Equal, i.e. the depth L of the second connection hole 1122Diameter d of wire with second end 132 of locking portion 132The proportion is (1-2): 1. Illustratively, the wire diameter d of the second end of the locking portion 1322.0mm, the depth L of the second connection hole 1122May be, but is not limited to, 2.0mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm, 3.1mm, 3.mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4.0 mm.
In other possible embodiments, the depth L of the first connection hole 1111And the depth L of the second connection hole 1122May be unequal as long as L can be satisfied1:d1Equal to (1-2) 1 and L2:d2Equal to (1-2) and 1.
In order to be able to keep the pin boss 11 as small as possible and to avoid interfering with the mounting of other components, the pin boss 11 has, in a possible embodiment, an arcuate surface, it being understood that the inwardly facing portion of the pin boss 11 has an arcuate surface.
Illustratively, in one particular embodiment, the longitudinal cross-section of the pin boss 11 is fan-shaped.
In other possible embodiments, the cross-section of the pin base 11 may be circular or polygonal.
The bayonet 10 provided by the utility model can ensure that the connection between the coupler and the engineering machinery is firmer and the safety risk of separation is not easy to occur. In one possible embodiment, the pin bosses are formed from a high strength metal, such as 1045 or 1144 heat treatable high yield strength steel.
In the embodiment of the present invention, the pin 12 is fixedly connected to the pin seat 11, and the pin 12 has a smaller width or diameter than the pin seat 11 and is engaged with the locking portion 13, so that the pin 12 is locked without being separated from the pin hole.
In a possible embodiment, the pin seat 11 may be provided with a mounting hole, and one end of the pin 12 is fixedly connected with the pin seat 11 through the mounting hole.
In another possible embodiment, the pin seat 11 is of a unitary construction with the pin 12, which facilitates manufacture.
In the embodiment provided by the present invention, the locking portion 13 has a first end 131 and a second end 132, the first end 131 of the locking portion 13 can extend into the first connection hole 111 and the second end 132 of the locking portion 13 can extend into the second connection hole 112, so that the locking portion 13 is movably connected with the pin seat 11, and the locking portion 13 forms a spiral structure, and the spiral pitch of the locking portion 13 is smaller than the vertical distance between the center of the first connection hole 111 and the center of the second connection hole 112, so that the locking portion 13 with elasticity can provide proper acting force to lock the pin 12 through its own elastic deformation and cooperate with the pin seat 11 to prevent the pin 12 from being disengaged from the pin hole.
Referring to fig. 4, in order to better prevent the pin 12 from being disengaged, when the locking part 13 locks the pin 12, a part of the pin 12 is located outside the range covered by the locking part 13, and it can be understood that the pin 12 has a length longer than the outer diameter of the locking part 13. For example, the outer diameter of the locking part 13 is 20mm, and the length of the pin 12 may be, but is not limited to, 22 mm.
In addition, in order to make the locking portion 13 more firmly locked with the pin 12, in one possible embodiment, the ratio of the vertical distance between the center of the first connection hole 111 and the center of the second connection hole 112 on the pin holder 11 to the spiral pitch of the locking portion 13 is (1.9-2.1).
For example, the vertical distance between the center of the first connection hole 111 and the center of the second connection hole 112 may be 2.1mm, and the spiral pitch of the locking part 13 may be, but is not limited to, 1 mm.
With continued reference to fig. 1-4, in one possible embodiment, the locking portion 13 is a single turn coil spring made of spring steel.
In order to further facilitate the replacement of the tooling and shorten the time for replacing the tooling, in a possible embodiment, the ratio of the wire diameter of the coil spring to the outer diameter of the coil spring is 1: (14.5-15.5).
Illustratively, when the coil spring has an outer diameter of 20mm, the wire diameter thereof may be, but is not limited to, 1.290mm, 1.291mm, 1.292mm, 1.293mm, 1.294mm, 1.295mm, 1.296mm, 1.297mm, 1.298mm, 1.299mm, 1.300mm, 1.301mm, 1.302mm, 1.303mm, 1.304mm, 1.305mm, 1.306mm, 1.307mm, 1.308mm, 1.309mm, 1.310mm, 1.311mm, 1.312mm, 1.313mm, 1.314mm or more.
Further, based on a general utility model concept, the utility model also provides a coupler, the coupler 1 comprises a bayonet lock 10, a coupler body 20 and a mounting part 30.
The coupler body 20 has a vertical portion 21 and a hook portion 22. The installation part 30 is connected with the vertical part 21 of the coupler body 20, square holes are formed in the installation part 30 and the vertical part 21 and used for installing a tool 40, pin holes are formed in the tool 40 and used for installing the clamping pins 10, the installation part 30 can be connected with the coupler 1, accordingly, the coupler 1 is limited to rotate, the clamping pins 10 are extracted from the pin holes when the tool 40 is disassembled, and at the moment, the coupler 1 can freely run. The pin 12 of the bayonet 10 can be inserted into the pin hole of the tool 40 and locked by the locking part 13 to prevent the pin 12 from being removed from the pin hole.
Furthermore, based on the general utility model concept, the utility model also provides an engineering machine, and the coupler 1 in the embodiment is arranged on the engineering machine.
The above-mentioned working machine may be a crane, for example.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the present invention, unless otherwise specifically stated, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through any intervening elements or members, or may be in any other relationship relative to each other unless expressly specified otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments can be modified, or the technical features of the individual parts or the whole parts can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A release-resistant bayonet, comprising:
the pin base is provided with a first connecting hole and a second connecting hole on two side surfaces, and the circle center of the first connecting hole is not overlapped with the circle center of the second connecting hole;
the pin shaft is fixedly connected with the pin seat and has a smaller width or diameter than the pin seat;
the locking part is provided with a first end and a second end, and the first end and the second end respectively extend into the first connecting hole and the second connecting hole to form a spiral structure;
wherein a vertical distance between a center of the first connection hole and a center of the second connection hole is greater than a spiral pitch of the locking part; when a certain part of the locking part is in contact with the pin shaft, part of the pin shaft is positioned outside the range covered by the locking part.
2. The bayonet according to claim 1, wherein a ratio of a vertical distance between a center of the first connection hole and a center of the second connection hole to the locking part helical pitch is (1.9-2.1): 1.
3. the bayonet of claim 1 or 2, wherein the locking portion is a single turn helical spring.
4. The bayonet of claim 3, wherein the aperture of the first connection hole is 0.4-0.6mm larger than the wire diameter of the first end of the helical spring;
the aperture of the second connecting hole is 0.4-0.6mm larger than the wire diameter of the second end of the spiral spring.
5. The bayonet of claim 4, wherein the ratio of the depth of the first connection hole to the wire diameter of the first end of the helical spring is (1-2): 1;
the ratio of the depth of the second connecting hole to the wire diameter of the second end of the spiral spring is (1-2): 1.
6. the bayonet of claim 3, wherein the ratio of the wire diameter of the helical spring to the outer diameter of the helical spring is 1: (14.5-15.5).
7. The bayonet of claim 1, wherein the longitudinal cross-section of the keyway is scalloped.
8. A coupler, characterized in that the coupler comprises:
a coupler body having a hook portion and a vertical portion;
the mounting part is connected with the vertical part, and a pin hole is formed in the mounting part;
the bayonet lock is as claimed in any one of claims 1 to 7, and a pin shaft of the bayonet lock can extend into the pin hole and is locked by the locking part to prevent the pin shaft from leaving the pin hole.
9. A working machine, characterized in that the coupler of claim 8 is mounted on the working machine.
10. A working machine according to claim 9, characterized in that the working machine is a crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120866480.5U CN215364492U (en) | 2021-04-26 | 2021-04-26 | Anti-loosening clamping pin, coupler comprising clamping pin and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120866480.5U CN215364492U (en) | 2021-04-26 | 2021-04-26 | Anti-loosening clamping pin, coupler comprising clamping pin and engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215364492U true CN215364492U (en) | 2021-12-31 |
Family
ID=79628053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120866480.5U Expired - Fee Related CN215364492U (en) | 2021-04-26 | 2021-04-26 | Anti-loosening clamping pin, coupler comprising clamping pin and engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215364492U (en) |
-
2021
- 2021-04-26 CN CN202120866480.5U patent/CN215364492U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211231 |
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| CF01 | Termination of patent right due to non-payment of annual fee |