CN219327718U - A back-off structure for round pin axle anticreep - Google Patents
A back-off structure for round pin axle anticreep Download PDFInfo
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- CN219327718U CN219327718U CN202223239600.2U CN202223239600U CN219327718U CN 219327718 U CN219327718 U CN 219327718U CN 202223239600 U CN202223239600 U CN 202223239600U CN 219327718 U CN219327718 U CN 219327718U
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- connecting section
- pin shaft
- hole
- sliding door
- width
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses an inverted buckle structure for preventing a pin shaft from falling off, which is used for installing a pulley on a sliding door pedal, wherein a connecting hole is formed in the sliding door pedal, and one end of the pin shaft extends into the connecting hole along the insertion direction; the connecting hole sequentially comprises a first connecting section and a second connecting section along the inserting direction, and the width of the second connecting section gradually decreases along the inserting direction; the pin shaft sequentially comprises a third connecting section and a fourth connecting section along the insertion direction, wherein the third connecting section is positioned in the first connecting section, and the fourth connecting section is connected with the second connecting section. According to the utility model, the connecting hole is formed in the sliding door pedal, and the pin shaft on the pulley is clamped in the connecting hole, so that the pulley can be mounted, the sliding door pedal is prevented from being provided with the through groove penetrating through the side wall of the sliding door pedal, the integrity of the sliding door pedal is further enhanced, and the strength of the sliding door pedal is improved.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an inverted buckle structure for preventing a pin shaft from falling off.
Background
A sliding door pedal is a component provided on an automobile for a passenger to tread when getting on or off the automobile. A sliding door of an automobile is driven to open and close by a driver mounted on a sliding door pedal. A plurality of transmission parts are further arranged between the driver and the sliding door for transmission, and the transmission parts comprise a plurality of tensioning wheels for tensioning the transmission belt.
The installation of current tight pulley that rises does: the sliding door pedal is integrally injection molded, a round hole is formed in the sliding door pedal, a through groove is formed in the round hole to the side wall of the sliding door pedal, and a pin shaft of the tensioning wheel is pressed into the round hole from the side wall along the through groove, so that the tensioning wheel can be installed at the round hole.
The arrangement causes the sliding door pedal to have a through groove communicated with the side wall and the round hole, so that the integrity of the sliding door pedal is damaged, the strength of the sliding door pedal is reduced, and passengers can easily cause the cracking of the sliding door pedal when stepping on the sliding door pedal repeatedly; meanwhile, as the tension wheel is pulled by the transmission belt and the through groove deforms to expand the round hole after being trampled for many times, the pin shaft is loosened, and finally the transmission belt cannot be tensioned and loses the transmission effect.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art, such as the problem that the strength of a sliding door pedal is reduced due to the fact that the sliding door pedal is provided with a through groove for a pin shaft to pass through.
The technical scheme adopted by the utility model for solving the technical problems is that the reverse buckling structure for preventing the pin shaft from falling off is used for installing a pulley on a sliding door pedal, a connecting hole is formed in the sliding door pedal, and one end of the pin shaft extends into the connecting hole along the insertion direction;
the connecting hole sequentially comprises a first connecting section and a second connecting section along the inserting direction, and the width of the second connecting section gradually decreases along the inserting direction;
the pin shaft sequentially comprises a third connecting section and a fourth connecting section along the insertion direction, the third connecting section is positioned in the first connecting section, and the fourth connecting section is connected with the second connecting section;
and a fifth connecting section is further arranged on one side, away from the third connecting section, of the fourth connecting section on the pin shaft, the width of the fifth connecting section gradually increases along the insertion direction, and the maximum width of the fifth connecting section is larger than the minimum width of the second connecting section.
Further, a sixth connecting section is further arranged on the pin shaft at one side, away from the fourth connecting section, of the fifth connecting section, the width of the sixth connecting section gradually decreases along the insertion direction, and the minimum width of the sixth connecting section is smaller than or equal to the minimum width of the first connecting section.
Further, a seventh connecting section is further arranged on the pin shaft at one side, away from the fifth connecting section, of the sixth connecting section, the width of the seventh connecting section gradually decreases along the insertion direction, and the minimum width of the seventh connecting section is smaller than or equal to the minimum width of the first connecting section.
Further, the widths of the first connection section at the positions along the insertion direction are equal, the widths of the third connection section at the positions along the insertion direction are equal, and the first connection section and the third connection section are in clearance fit.
Further, the second connecting section comprises a plurality of circular arc-shaped valve bodies, the valve bodies are simultaneously connected with the first connecting section, a gap is reserved between any two adjacent valve bodies, and the valve bodies are simultaneously in interference fit with the fourth connecting section.
Further, a rotation stopping plate is further arranged on the sliding door pedal, and a fixing hole aligned with the connecting hole is formed in the rotation stopping plate;
the pin shaft is provided with a third connecting section, a fourth connecting section is arranged on the third connecting section, a head is arranged on one section of the third connecting section, which is far away from the fourth connecting section, the side wall of the head is provided with at least two rotation stopping edges which are attached to the inner wall of the fixing hole, and the rotation stopping edges are provided with at least two positions, and the distances from the two positions to the central axis of the head are different.
Further, the cross sections of the head and the fixing hole are quadrilateral.
Further, a step surface is further arranged in the fixing hole, and the head can prop against the step surface to limit the pin shaft to slide in the connecting hole along the inserting direction.
Further, the pulley is arranged between the rotation stopping plate and the sliding door pedal, the pulley is provided with a mounting hole aligned with the connecting hole, and the pin shaft is simultaneously penetrated in the fixing hole, the mounting hole and the connecting hole.
Further, the pulley is a tension pulley.
Compared with the prior art, the utility model has at least the following beneficial effects:
the sliding door pedal is provided with a connecting hole, and the installation of the pulley can be realized by clamping the pin shaft on the pulley in the connecting hole. Therefore, the sliding door pedal is prevented from being provided with a through groove penetrating through the side wall of the sliding door pedal, the integrity of the sliding door pedal is further enhanced, and the strength of the sliding door pedal is improved; and the connecting hole is not communicated with the through groove, so that the connecting hole cannot be enlarged, and the pin shaft cannot be loosened.
Drawings
FIG. 1 is a schematic view of a sliding door pedal in an embodiment;
FIG. 2 is a cross-sectional view of the back-off structure in an embodiment;
FIG. 3 is a schematic structural view of a pin in an embodiment;
FIG. 4 is a cross-sectional view of a sliding door pedal at a connecting hole in an embodiment;
FIG. 5 is a cross-sectional view of an embodiment stop plate;
FIG. 6 is a schematic view of the structure of the swing-out plate and head according to the embodiment;
FIG. 7 is a schematic view of a structure of a connecting hole in an embodiment;
in the figure:
100. a sliding door pedal; 110. a rotation stopping plate; 111. a fixing hole; 112. a step surface; 120. a connection hole; 121. a first connection section; 122. a second connection section; 123. a valve body; 124. a gap;
200. a pin shaft; 210. a head; 220. a third connecting section; 230. a fourth connecting section; 240. a fifth connecting section; 250. a sixth connection section; 260. a seventh connection section;
300. and a tension wheel.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
Referring to fig. 1-7, the utility model discloses an inverted buckle structure for preventing a pin shaft from falling off, which is used for installing a pulley on a sliding door pedal 100, wherein a connecting hole 120 is formed on the sliding door pedal 100, and one end of the pin shaft 200 extends into the connecting hole 120 along the insertion direction;
the connecting hole 120 sequentially includes a first connecting section 121 and a second connecting section 122 along the insertion direction, and the width of the second connecting section 122 gradually decreases along the insertion direction;
the pin shaft 200 sequentially comprises a third connecting section 220 and a fourth connecting section 230 along the insertion direction, the third connecting section 220 is positioned in the first connecting section 121, and the fourth connecting section 230 is connected with the second connecting section 122;
a fifth connecting section 240 is further disposed on the pin 200 at a side of the fourth connecting section 230 away from the third connecting section 220, the width of the fifth connecting section 240 gradually increases along the insertion direction, and the maximum width of the fifth connecting section 240 is greater than the minimum width of the second connecting section 122.
The connecting hole 120 is formed in the sliding door pedal 100, and the pulley can be mounted by clamping the pin shaft 200 on the pulley in the connecting hole 120. Therefore, the sliding door pedal 100 is prevented from being provided with a through groove penetrating through the side wall of the sliding door pedal, the integrity of the sliding door pedal 100 is further enhanced, and the strength of the sliding door pedal 100 is improved; and the connecting hole 120 is not communicated with the through groove, so that the connecting hole 120 cannot be enlarged, and the pin shaft 200 cannot be loosened.
Specifically, the lower end of the pin shaft 200 passes through the hole in the pulley first, then passes through the first connecting section 121 and the second connecting section 122 in sequence until the third connecting section 220 is positioned in the first connecting section 121, and at this time, the fourth connecting section 230 is connected with the second connecting section 122, so as to realize the connection between the pin shaft 200 and the connecting hole 120.
Because the fifth connecting section 240 is further provided, the maximum width of the fifth connecting section 240 is greater than the minimum width of the second connecting section 122, so that the fifth connecting section 240 can prop open the side wall of the second connecting section 122 (the second connecting section 122 has a certain elasticity) when passing through the second connecting section 122, and after the fifth connecting section 240 completely passes through the second connecting section 122, the second connecting section 122 recovers the original width and is connected with the fourth connecting section 230.
Meanwhile, since the width of the fifth connection section 240 is gradually increased along the insertion direction and the width of the second connection section 122 is gradually decreased along the insertion direction, when the fifth connection section 240 is inserted into the second connection section 122, the wider end of the fifth connection section 240 is abutted against the second connection section 122 to prop open the second connection section 122; the deformation of the second connecting section 122 gradually increases along with the insertion depth, so that the required force is gradually increased, and further the fifth connecting section 240 can pass through the second connecting section 122 by continuously applying force, so as to realize clamping.
Further, a sixth connecting section 250 is further disposed on the pin 200 at a side of the fifth connecting section 240 away from the fourth connecting section 230, the width of the sixth connecting section 250 gradually decreases along the insertion direction, and the minimum width of the sixth connecting section 250 is smaller than or equal to the minimum width of the first connecting section 121.
Because the sixth connecting section 250 is arranged, when the second connecting section 122 starts to be further connected, the sixth connecting section 250 is in surface contact with the second connecting section 122, and the second connecting section 122 is gradually spread along with the entering of the sixth connecting section 250; after the sixth connecting section 250 passes through, the second connecting section 122 starts to contact with the fifth connecting section 240, and then the second connecting section 122 gradually returns to the original width until the second connecting section is completely attached to the fifth connecting section 240. The sixth connecting section 250 is provided, so that the sixth connecting section is in surface contact when the second connecting section 122 is unfolded, the clamping process is smoother, and the wider end of the fifth connecting section 240 can be prevented from being directly in line contact with the second connecting section 122, so that clamping during clamping is avoided.
Further, a seventh connecting section 260 is further disposed on the pin 200 at a side of the sixth connecting section 250 away from the fifth connecting section 240, the width of the seventh connecting section 260 gradually decreases along the insertion direction, and the minimum width of the seventh connecting section 260 is smaller than or equal to the minimum width of the first connecting section 121.
Specifically, the connection between the seventh connecting section 260 and the sixth connecting section 250 has a step, and the second connecting section 122 cannot pass over the step without breaking under force, so that the seventh connecting section 260 is separated from the second connecting section 122.
Therefore, the seventh connecting section 260 is provided, which can exert a multi-slave protection effect. The fifth connecting section 240 can prevent the pin shaft 200 from falling out of the connecting hole 120, which is the first protection; the seventh connection segment 260 serves as a second pass guard; in this way, the pin 200 is prevented from being separated from the connection hole 120.
Further, the width of each position of the first connecting section 121 along the insertion direction is equal, the width of each position of the third connecting section 220 along the insertion direction is equal, and the first connecting section 121 is in clearance fit with the third connecting section 220.
Further, the second connecting section 122 includes a plurality of arcuate petals 123, the petals 123 are simultaneously connected to the first connecting section 121, a gap 124 is formed between any two adjacent petals 123, and the petals 123 are simultaneously in interference fit with the fourth connecting section 230.
The second connecting section 122 is in interference fit with the fourth connecting section 230, so that the second connecting section 122 always applies an inward pre-tightening force to the fourth connecting section 230 to enhance the connection strength.
Specifically, the plurality of petals 123 are propped against and deform outwards by the pin shaft 200, and the gap 124 is increased, so that the second connecting section 122 is propped open; the plurality of petals 123 can also deform inwards under the action of self-elasticity, and meanwhile, the gaps 124 are reduced, so that the second connecting section 122 is contracted.
Further, the sliding door pedal 100 is further provided with a rotation stopping plate 110, and the rotation stopping plate 110 is provided with a fixing hole 111 aligned with the connecting hole 120;
the section of the pin shaft 200 located at the third connecting section 220 and far from the fourth connecting section 230 is further provided with a head 210, the side wall of the head 210 is provided with at least two rotation stopping edges attached to the inner wall of the fixing hole 111, and the rotation stopping edges are provided with at least two positions with different distances from the central axis of the head 210.
Specifically, the rotation stopping edge has at least two positions with different distances from the central axis of the head 210, so that when the pin shaft 200 has a rotation tendency, one of the two positions can abut against the inner wall of the fixing hole 111, thereby limiting the rotation of the pin shaft 200 and playing a role of stopping rotation.
The rotation stopping plate 110 not only plays a role in preventing the rotation of the pin shafts 200, but also can be used for restraining the pin shafts 200 together with the connecting holes 120, so that two ends of the two pin shafts 200 are restrained at the same time, and the loosening of the pin shafts 200 is prevented.
Further, the cross sections of the head 210 and the fixing hole 111 are both quadrilateral.
Further, a step surface 112 is further provided in the fixing hole 111, and the head 210 may abut against the step surface 112 to limit the pin 200 from sliding in the insertion direction in the connection hole 120.
The step surface 112 is arranged to limit the insertion depth of the pin shaft 200, so that the pin shaft 200 is prevented from being inserted too deeply to damage the connecting hole 120.
Further, the pulley is disposed between the rotation stopping plate 110 and the sliding door step 100, the pulley has a mounting hole aligned with the connection hole 120, and the pin shaft 200 is simultaneously inserted into the fixing hole 111, the mounting hole and the connection hole 120.
Further, the pulley is a tensioner 300.
Specifically, during installation, the tensioner 300 is first prevented from being in the space between the rotation stop plate 110 and the sliding door pedal 100, the installation hole of the tensioner 300 is simultaneously aligned with the connection hole 120 and the fixing hole 111, and then one end of the pin 200 sequentially passes through the fixing hole 111, the installation hole and the connection hole 120 until the head 210 abuts against the step surface 112, and the fourth connection section 230 is attached to the second connection section 122, thus completing the installation.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Claims (10)
1. The back-off structure for preventing the pin shaft from falling off is used for installing the pulley on the sliding door pedal and is characterized in that a connecting hole is formed in the sliding door pedal, and one end of the pin shaft extends into the connecting hole along the insertion direction;
the connecting hole sequentially comprises a first connecting section and a second connecting section along the inserting direction, and the width of the second connecting section gradually decreases along the inserting direction;
the pin shaft sequentially comprises a third connecting section and a fourth connecting section along the insertion direction, the third connecting section is positioned in the first connecting section, and the fourth connecting section is connected with the second connecting section;
and a fifth connecting section is further arranged on one side, away from the third connecting section, of the fourth connecting section on the pin shaft, the width of the fifth connecting section gradually increases along the insertion direction, and the maximum width of the fifth connecting section is larger than the minimum width of the second connecting section.
2. The back-off structure for preventing a pin shaft from falling out according to claim 1, wherein a sixth connecting section is further arranged on the pin shaft at a side of the fifth connecting section away from the fourth connecting section, the width of the sixth connecting section gradually decreases along the insertion direction, and the minimum width of the sixth connecting section is smaller than or equal to the minimum width of the first connecting section.
3. The back-off structure for preventing a pin shaft from falling out according to claim 2, wherein a seventh connecting section is further arranged on the pin shaft at a side of the sixth connecting section away from the fifth connecting section, the width of the seventh connecting section gradually decreases along the insertion direction, and the minimum width of the seventh connecting section is smaller than or equal to the minimum width of the first connecting section.
4. The back-off structure for preventing pin shaft from being separated according to claim 1, wherein the width of each position of the first connecting section along the insertion direction is equal, the width of each position of the third connecting section along the insertion direction is equal, and the first connecting section and the third connecting section are in clearance fit.
5. The back-off structure for preventing pin shaft from falling out according to claim 1, wherein the second connecting section comprises a plurality of arc-shaped valve bodies, the valve bodies are simultaneously connected with the first connecting section, a gap is reserved between any two adjacent valve bodies, and the valve bodies are simultaneously in interference fit with the fourth connecting section.
6. The back-off structure for preventing pin shaft from falling out according to claim 1, wherein a rotation stopping plate is further arranged on the sliding door pedal, and a fixing hole aligned with the connecting hole is arranged on the rotation stopping plate;
the pin shaft is provided with a third connecting section, a fourth connecting section is arranged on the third connecting section, a head is arranged on one section of the third connecting section, which is far away from the fourth connecting section, the side wall of the head is provided with at least two rotation stopping edges which are attached to the inner wall of the fixing hole, and the rotation stopping edges are provided with at least two positions, and the distances from the two positions to the central axis of the head are different.
7. The back-off structure for preventing pin shaft from falling out according to claim 6, wherein the cross sections of the head part and the fixing hole are all in quadrilateral arrangement.
8. The back-off structure for preventing pin shaft from falling out according to claim 6, wherein a step surface is further provided in the fixing hole, and the head portion can abut against the step surface to limit the pin shaft from sliding in the insertion direction in the connecting hole.
9. The back-off structure for preventing a pin shaft from being pulled out according to claim 6, wherein the pulley is provided between the rotation stopping plate and the sliding door pedal, the pulley is provided with a mounting hole aligned with the connecting hole, and the pin shaft is simultaneously penetrated in the fixing hole, the mounting hole and the connecting hole.
10. The back-off structure for preventing pin shaft from falling out according to claim 9, wherein the pulley is a tension pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223239600.2U CN219327718U (en) | 2022-12-05 | 2022-12-05 | A back-off structure for round pin axle anticreep |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223239600.2U CN219327718U (en) | 2022-12-05 | 2022-12-05 | A back-off structure for round pin axle anticreep |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219327718U true CN219327718U (en) | 2023-07-11 |
Family
ID=87062500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223239600.2U Active CN219327718U (en) | 2022-12-05 | 2022-12-05 | A back-off structure for round pin axle anticreep |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219327718U (en) |
-
2022
- 2022-12-05 CN CN202223239600.2U patent/CN219327718U/en active Active
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