CN216867222U - Fastening structure - Google Patents

Fastening structure Download PDF

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Publication number
CN216867222U
CN216867222U CN202123233984.2U CN202123233984U CN216867222U CN 216867222 U CN216867222 U CN 216867222U CN 202123233984 U CN202123233984 U CN 202123233984U CN 216867222 U CN216867222 U CN 216867222U
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China
Prior art keywords
fastening
hole
fixed frame
moving part
connecting mechanism
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CN202123233984.2U
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Chinese (zh)
Inventor
马海宽
屈薛勇
李培力
隋健
寇永乐
王冬梅
洪源隆
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China National Heavy Machinery Research Institute Co Ltd
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China National Heavy Machinery Research Institute Co Ltd
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Abstract

The utility model provides a fastening structure, which comprises a fixed frame, a movable piece, an axial fixing structure and a circumferential fixing structure, wherein the axial fixing structure and the circumferential fixing structure are used for connecting the movable piece and the fixed frame. This fastening structure can prevent through circumference fixed knot structure that the moving part from for the mount circumference rotation, adopts axial fixed knot structure to link moving part and mount as an organic whole simultaneously and realizes the fastening. When the movable part is installed, a hole formed in the middle of the lower end face of the fixed frame is a taper hole with a large upper part and a small lower part, and a fastening pin in the connecting mechanism moves outwards and is pressed on an inclined plane of the taper hole under the action of a steel ball pressed by a fastening screw, so that the movable part is firmly fixed on the fixed frame; when the movable piece is detached, the movable piece is pulled after the set screw is released, the fastening pin returns to the inside of the movable piece under the action of the inclined plane, and the movable piece is separated from the fixed frame.

Description

Fastening structure
Technical Field
The utility model belongs to the technical field of mechanical structures, and particularly relates to a fastening structure.
Background
In mechanical equipment, two pieces are often required to be quickly connected, and the mechanical equipment is simple in structure, convenient to replace and long in service life. The traditional connection mode is various, and some simple structures, such as bolted connection, but current bolt fastening structure has following problem in the in-process of using: when large bolts and nuts applied to large engineering equipment are fastened, large tools are needed for fastening, and when the large bolts and nuts are used for working, the problem that the bolts are loosened can occur, so that the work of the equipment is influenced. Some structures are relatively complex, not convenient enough in practical use and have lifting space.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to provide a fastening structure that overcomes the above-mentioned technical problems of the prior art.
Therefore, the technical scheme provided by the utility model is as follows:
a fastening structure comprises a fixed frame, a movable piece, an axial fixing structure and a circumferential fixing structure, wherein the axial fixing structure and the circumferential fixing structure are used for connecting the movable piece and the fixed frame.
The circumference fixed knot constructs including navigation key and constant head tank, navigation key and constant head tank match, navigation key and constant head tank are located respectively on mount, the moving part.
The axial fixing structure comprises a connecting mechanism and a switch mechanism, the connecting mechanism and the switch mechanism are both arranged in the moving part, the connecting mechanism is used for axially fixing the moving part and the fixing frame, and the switch mechanism is used for controlling the compressing and returning of the connecting mechanism.
The middle part of the lower end face of the fixed frame is provided with a hole, the lower part of the hole is a taper hole with a large upper part and a small lower part, the positioning key is fixedly arranged in the middle of the hole, the upper part of the moving part is matched with the hole, and the positioning groove is formed in the top end of the moving part.
The upper part of the moving piece is provided with at least two through holes, and the through holes all pass through the central shaft and are uniformly distributed in the circumferential direction;
the connecting mechanism comprises a fastening pin and plugs, the through holes correspond to the connecting mechanism one by one, the fastening pin and the plugs are arranged in the through holes, one end of each through hole is not smaller than the outer diameter of the fastening pin, the other end of each through hole is smaller than the outer diameter of the fastening pin, the fastening pin is located at one smaller end, and the plugs are located at one larger end.
The switch mechanism comprises a steel ball and a fastening screw, a groove is formed in the side face of the movable part, the groove is inclined downwards, the steel ball is arranged at the upper left part in the groove, the fastening screw is arranged at the lower right part in the groove, and the steel ball can be in contact with or separated from the connecting mechanism under the action of the fastening screw.
Three through holes are formed in the upper portion of the movable piece, and included angles of the through holes are 120 degrees.
The beneficial effects of the utility model are:
the fastening structure provided by the utility model can prevent the moving part from rotating relative to the fixed frame in the circumferential direction through the circumferential fixing structure, and meanwhile, the moving part and the fixed frame are connected into a whole by adopting the axial fixing structure to realize fastening. When the movable part is installed, a hole formed in the middle of the lower end face of the fixed frame is a conical hole with a large upper part and a small lower part, and a fastening pin in the connecting mechanism moves outwards and is pressed on an inclined plane of the conical hole under the action of a steel ball pressed by a fastening screw, so that the movable part is firmly fixed on the fixed frame; when the movable piece is disassembled, the movable piece is pulled after the set screw is released, the fastening pin returns to the inside of the movable piece under the action of the inclined plane, and the movable piece is separated from the fixed frame.
The connecting mechanisms are uniformly distributed in the circumferential direction, the stress is uniform, the fastening pin is arranged in the movable part from the larger side and is blocked by the plug, and the diameter of the other side hole is smaller than that of the fastening pin, so that the fastening pin can be prevented from falling out.
The following will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of an unsecured embodiment of the present invention;
FIG. 2 is a schematic structural view of one fastened embodiment of the present invention;
fig. 3 is a schematic structural view of an embodiment of the connection mechanism of the present invention.
In the figure: 1. a movable member; 2. a plug; 3. a fixed mount; 4. a bolt; 5. a positioning key; 6. a fastening pin; 7. a steel ball; 8. fastening screws; 9. an aperture; 10. a through hole; 11. a trench; 12. a bevel.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the utility model. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their context in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Example 1:
the embodiment provides a fastening structure, which comprises a fixed frame 3 and a movable piece 1, and further comprises an axial fixing structure and a circumferential fixing structure which are used for connecting the movable piece 1 and the fixed frame 3.
The fastening structure provided by the utility model can prevent the circumferential rotation of the moving part 1 relative to the fixed frame 3 through the circumferential fixing structure, and meanwhile, the axial fixing structure is adopted to connect the moving part 1 and the fixed frame 3 into a whole to realize fastening.
Example 2:
on embodiment 1's basis, this embodiment provides a fastening structure, circumference fixed knot constructs including navigation key 5 and constant head tank, navigation key 5 and constant head tank match, navigation key 5 and constant head tank are located respectively on mount 3, the moving part 1.
As shown in fig. 1, before the movable member 1 is installed in the fixed frame 3, the positioning key 5 is first installed in the key slot of the fixed frame 3 by two bolts 4, and then the positioning slot of the movable member 1 is aligned with the positioning key 5 of the fixed frame 3 and is integrally inserted into the fixed member, so that the movable member 1 cannot rotate. The movable part 1 and the fixed frame 3 are matched in size.
Example 3:
on the basis of embodiment 1, this embodiment provides a fastening structure, axial fixity structure includes coupling mechanism and on-off mechanism, coupling mechanism and on-off mechanism all locate moving part 1 in, coupling mechanism is used for the axial fixity between moving part 1 and the mount 3, on-off mechanism is used for controlling coupling mechanism's compressing tightly and withdrawing.
The fastening structure firmly fixes the movable part 1 on the fixed frame 3 through the connecting mechanism, and the connection between the movable part and the fixed frame can be released through the switch mechanism, so that the disassembly and the assembly are convenient.
Example 4:
on the basis of embodiment 2, this embodiment provides a fastening structure, the hole 9 is seted up in the middle part of the terminal surface under the mount 3, the lower part of hole 9 is big-end-up's taper hole, positioning key 5 sets firmly in the middle part of hole 9, the upper portion and the hole 9 of moving part 1 match, the constant head tank is seted up at the top of moving part 1.
As shown in fig. 1 and 2, first, the upper portion of the movable member 1 can be inserted into the hole 9 of the fixed frame 3, and finally, the positioning slot of the movable member 1 is aligned with the positioning key 5 of the fixed frame 3, so that the movable member 1 cannot rotate after being inserted as a whole.
Example 5:
on the basis of embodiment 3, this embodiment provides a fastening structure, where at least two through holes 10 are formed in the upper portion of the moving member 1, and the through holes 10 all cross the central axis and are uniformly distributed in the circumferential direction;
coupling mechanism includes fastening pin 6 and end cap 2, through-hole 10 with coupling mechanism one-to-one, fastening pin 6 and end cap 2 are all located in through-hole 10, and the one end of every through-hole 10 is not less than the external diameter of fastening pin 6, and the other end is less than the external diameter of fastening pin 6, fastening pin 6 is located less one end, and end cap 2 is located great one end.
The use process comprises the following steps:
the fastening pin 6 is arranged in the movable member 1 from the larger side of the through hole 10 and is blocked by the plug 2, and the diameter of the other side hole 9 is smaller than that of the fastening pin 6, so that the fastening pin 6 can be prevented from falling out; in the process of inserting the switch mechanism into the moving part 1, the fastening pin 6 is ensured not to be exposed in the moving part 1; finally, the positioning groove of the moving part 1 is aligned with the positioning key 5 of the fixed mount 3, and the moving part 1 can not rotate after being integrally inserted. Because the movable part 1 is connected with the fixed mount 3 in a matching size, the movable part 1 and the fixed mount 3 can only move up and down at the moment, namely are not fastened; and pushing or turning on the switch mechanism, wherein the switch mechanism pushes the fastening pin 6 to move outwards until the fastening pin presses the inclined plane 12 of the taper hole in the fixed frame 3.
Wherein, a small hole can be arranged on the inner wall of the hole of the fixing frame 3, and a spring is sleeved and fixed on one side of the fastening pin 6 close to the steel ball. When the device is used, the switch mechanism pushes the fastening pin 6 to move outwards, and the spring is compressed until the fastening pin 6 is inserted into the small hole in the inner wall of the fixing frame 3, so that fastening is completed; when the moving part 1 needs to be separated from the fixed frame 3, the switch mechanism moves reversely, the fastening pin 6 is separated from the small hole under the action of the spring and returns to the inside of the moving part 1, and the moving part 1 is pulled downwards to be separated from the fixed frame 3.
Example 6:
on the basis of embodiment 3, this embodiment provides a fastening structure, the switching mechanism includes steel ball 7 and fastening screw 8, slot 11 has been seted up to moving part 1 side, slot 11 is the slant downwards, steel ball 7 is located the upper left portion in slot 11, fastening screw 8 is located the lower right portion in slot 11, steel ball 7 can contact or throw off with coupling mechanism under the effect of fastening screw 8.
The using method comprises the following steps: before the moving part 1 is installed in the fixed frame 3, firstly, the positioning key 5 is installed in the key slot of the fixed frame 3 by using the two bolts 4, then, the steel ball 7 is placed in the groove 11 of the moving part 1, and meanwhile, the connecting mechanism is installed in the moving part 1; then, the fastening screw 8 is screwed into the moving part 1, and the connecting mechanism is ensured not to expose head in the moving part 1; finally, the positioning key 5 of the moving part 1 is aligned to the positioning key 5 of the fixing frame 3 and is integrally inserted into the fixing part, at the moment, the moving part 1 and the fixing frame 3 can only move up and down, the steel ball 7 is not in contact with the connecting mechanism, the opening and closing mechanism is not operated, namely, the moving part 1 and the fixing frame are not fastened, and the structure is shown in figure 1.
And then, the fastening screw 8 is rotated to be continuously screwed in, the fastening screw 8 abuts against the steel ball 7, the steel ball 7 moves in the groove 11, the connecting mechanism is gradually pushed to move outwards until the connecting mechanism presses the inclined plane 12 of the taper hole in the fixed frame 3, and the movable part 1 is firmly fixed on the fixed frame 3 after the fastening screw 8 is screwed down, as shown in fig. 2.
When the movable piece 1 needs to be separated from the fixed frame 3, the fastening screw 8 is rotated reversely, the movable piece 1 is pulled downwards, the fastening pin gradually retracts into the movable piece 1 under the action of the taper hole of the fixed frame 3, and the movable piece 1 is separated from the fixed frame 3.
Example 7:
on the basis of embodiment 1, this embodiment provides a fastening structure, as shown in fig. 1 and fig. 2, including moving part 1, fixed frame 3, fastening screw 8, fastening pin 6, steel ball 7, end cap 2 and positioning key 5, positioning key 5 is fixed on fixed frame 3, fastening screw 8, fastening pin 6, steel ball 7 are installed inside moving part 1, and moving part 1 and fixed frame 3 are connected for the cooperation size.
The positioning key 5 is fixed on the fixing frame 3 through a bolt 4; the steel ball 7 and the fastening pin 6 can respectively and freely move in the groove 11 and the through hole 10 of the movable piece 1; the fastening fixing screw presses the steel ball 7, and the steel ball 7 presses the fastening pin 6; the fixing frame 3 is internally provided with a taper hole with inclination, and the fastening pin 6 is tightly pressed on the inclined plane 12 under the action of the fastening screw 8; after the fastening screw 8 is released, the movable part 1 is pulled, and the fastening pin 6 retracts into the movable part 1 under the action of the inclined surface 12.
In the embodiment, the plug 2 is an end screw; as shown in fig. 3, the upper portion of the movable member 1 is provided with three through holes 10, which form an included angle of 120 °. The steel ball 7 is pushed to move by the movement of the fastening screw 8, and finally the three fastening pins 6 are driven to move, so that the movable part 1 is tightly connected with the fixed frame 3.
The above examples are merely illustrative of the present invention and should not be construed as limiting the scope of the utility model, which is intended to be covered by the claims and any design similar or equivalent to the scope of the utility model.

Claims (7)

1. The utility model provides a fastening structure, includes mount and moving part, its characterized in that: the device also comprises an axial fixing structure and a circumferential fixing structure which are used for connecting the moving piece and the fixing frame.
2. A fastening construction according to claim 1, wherein: the circumference fixed knot constructs including navigation key and constant head tank, navigation key and constant head tank match, navigation key and constant head tank are located respectively on mount, the moving part.
3. A fastening construction according to claim 1, wherein: the axial fixing structure comprises a connecting mechanism and a switch mechanism, the connecting mechanism and the switch mechanism are both arranged in the moving part, the connecting mechanism is used for axially fixing the moving part and the fixing frame, and the switch mechanism is used for controlling the compressing and returning of the connecting mechanism.
4. A fastening construction according to claim 2, wherein: the middle part of the lower end face of the fixed frame is provided with a hole, the lower part of the hole is a taper hole with a large upper part and a small lower part, the positioning key is fixedly arranged in the middle of the hole, the upper part of the moving part is matched with the hole, and the positioning groove is formed in the top end of the moving part.
5. A fastening construction according to claim 3, wherein: the upper part of the moving piece is provided with at least two through holes, and the through holes all pass through the central shaft and are uniformly distributed in the circumferential direction;
the connecting mechanism comprises a fastening pin and plugs, the through holes correspond to the connecting mechanism one by one, the fastening pin and the plugs are arranged in the through holes, one end of each through hole is not smaller than the outer diameter of the fastening pin, the other end of each through hole is smaller than the outer diameter of the fastening pin, the fastening pin is located at one smaller end, and the plugs are located at one larger end.
6. A fastening construction according to claim 3, wherein: the switch mechanism comprises a steel ball and a fastening screw, a groove is formed in the side face of the movable part, the groove is inclined downwards, the steel ball is arranged at the upper left part in the groove, the fastening screw is arranged at the lower right part in the groove, and the steel ball can be in contact with or separated from the connecting mechanism under the action of the fastening screw.
7. A fastening construction according to claim 3, wherein: three through holes are formed in the upper portion of the movable piece, and included angles of the through holes are 120 degrees.
CN202123233984.2U 2021-12-22 2021-12-22 Fastening structure Active CN216867222U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202123233984.2U CN216867222U (en) 2021-12-22 2021-12-22 Fastening structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202123233984.2U CN216867222U (en) 2021-12-22 2021-12-22 Fastening structure

Publications (1)

Publication Number Publication Date
CN216867222U true CN216867222U (en) 2022-07-01

Family

ID=82147235

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202123233984.2U Active CN216867222U (en) 2021-12-22 2021-12-22 Fastening structure

Country Status (1)

Country Link
CN (1) CN216867222U (en)

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