CN220956405U - Pin shaft for increasing friction force - Google Patents
Pin shaft for increasing friction force Download PDFInfo
- Publication number
- CN220956405U CN220956405U CN202322628535.0U CN202322628535U CN220956405U CN 220956405 U CN220956405 U CN 220956405U CN 202322628535 U CN202322628535 U CN 202322628535U CN 220956405 U CN220956405 U CN 220956405U
- Authority
- CN
- China
- Prior art keywords
- pin
- diameter
- elliptic cylinder
- hinge
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000001965 increasing effect Effects 0.000 title claims abstract description 9
- 230000004323 axial length Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model belongs to the technical field of hardware fasteners, and particularly discloses a pin shaft capable of increasing friction force, which aims to solve the technical problem of small friction force of the pin shaft. According to the hinge pin, the straight knurling part is arranged in the middle of the hinge pin body, the elliptic cylinder part is arranged at the left end of the hinge pin body, and the right end of the hinge pin is not treated, so that the normal use of the hinge pin body is not affected, the friction force of the hinge pin body can be better improved, and the hinge pin is conveniently and well applied to a hinge.
Description
Technical Field
The utility model relates to the technical field of hardware fasteners, in particular to a pin shaft for increasing friction force.
Background
The pin shaft is used as a fastener, can be fixedly connected in a static state, can also relatively move with a connected piece, and is mainly used for the hinge joint of two parts to form hinge connection.
When the pin is used as a hinge joint, friction between the pin and the hinge can affect the torque of the overall hinge. At present, the diameters of the pin shafts on the whole shaft are consistent, and the pin shaft body is inserted into the hinge joint between the two hinges, so that the two hinges can be smooth (namely, the friction force is smaller) in the hinge joint process, the hinge joint action of the hinges cannot be stopped immediately after manual force unloading, and the hinges can be opened or closed continuously due to inertia.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of utility model
The technical problem to be solved by the utility model is that the friction force of the pin shaft in the background technology is small, and therefore, the pin shaft for increasing the friction force is provided.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the utility model provides a round pin axle of increase frictional force, includes the round pin axle body, along the axial direction of round pin axle body, the middle part position of round pin axle body sets up to the knurl of straight line portion, the one end of round pin axle body sets up to the elliptic cylinder portion, the maximum diameter of knurl of straight line portion is greater than the diameter of round pin axle body, the radial major axis of elliptic cylinder portion is greater than the diameter of round pin axle body, the radial minor axis of elliptic cylinder portion is less than the diameter of round pin axle body.
The following is a further defined technical scheme of the utility model, wherein the difference between the maximum diameter of the straight knurled part and the diameter of the pin shaft body is less than or equal to 0.1mm.
The following is a further defined technical scheme of the utility model, wherein the difference between the radial long axis of the elliptic cylinder part and the diameter of the pin shaft body is less than or equal to 0.1mm.
The following is a further defined technical scheme of the utility model, wherein the difference between the radial short axis of the elliptic cylinder part and the diameter of the pin shaft body is less than or equal to 0.1mm.
The following is a further defined technical solution of the present utility model, where the axial length of the knurled portion is 3mm.
The following is a further defined technical solution of the present utility model, where the axial length of the elliptic cylinder part is 2.5mm.
Compared with the prior art, the utility model has the following technical effects:
According to the hinge pin, the straight knurling part is arranged in the middle of the hinge pin body, the elliptic cylinder part is arranged at the left end of the hinge pin body, and the right end of the hinge pin is not treated, so that the normal use of the hinge pin body is not affected, the friction force of the hinge pin body can be better improved, and the hinge pin is conveniently and well applied to a hinge.
The utility model will be further described with reference to the drawings and examples.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the embodiments or the drawings needed in the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the front view of the present utility model;
Fig. 2 is a schematic side view of an elliptic cylinder part in the present utility model.
Reference numerals: 1. a pin body; 2. a straight knurling part; 3. an elliptic cylinder part.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.
As shown in fig. 1-2, a pin shaft for increasing friction force is provided, which comprises a pin shaft body 1, wherein the pin shaft body 1 is used for hinging movement between two hinges.
As a preferable structure, along the axial direction of the pin shaft body 1, the middle position of the pin shaft body 1 is provided with a straight knurled part 2, and the left end of the pin shaft body 1 is provided with an elliptic cylinder part 3; the maximum diameter of the straight knurling part 2 is larger than the diameter of the pin shaft body 1, the radial long axis of the elliptic cylinder part 3 is larger than the diameter of the pin shaft body 1, and the radial short axis of the elliptic cylinder part 3 is smaller than the diameter of the pin shaft body 1.
As shown in fig. 1, the whole shaft length of the pin shaft body 1 is 23mm; the axial length of the straight knurling part 2 is 3mm, and the straight knurling part 2 is positioned in the middle of the pin shaft body 1; the axial length of the elliptic cylinder part 3 is 2.5mm, and the elliptic cylinder part 3 is positioned at the left end of the pin shaft body 1; the right end of the pin shaft body 1 is not treated.
The straight knurling 2 is formed by performing a straight knurling process on the shaft surface of the pin body 1, which is a prior art and is only used for understanding the straight knurling 2 in the present embodiment by those skilled in the art.
It should be noted that the pin body 1 is inserted into the hinge through holes of the two hinges, wherein the inner diameter of the hinge through holes is adapted to the diameter of the pin body 1, and more specifically, the inner diameter of the hinge through holes is equal to the diameter of the pin body 1. Therefore, both the maximum diameter of the straight knurled part 2 on the pin body 1 and the radial long axis of the elliptic cylinder part 3 are larger than the inner diameter of the hinge through hole, so that the hinge through hole can be properly extruded, and the friction force between the pin body 1 and the hinge is increased.
In particular, the middle position of the pin body 1 is set as the straight knurled part 2, the left end of the pin body 1 is set as the elliptic cylinder part 3, the right end of the pin body 1 is not treated, wherein the right end of the pin body 1 is not treated and the right end thereof is required to be inserted into the hinge through hole of the hinge at first. Because, when the pin body 1 is inserted into the hinge through hole of the hinge, if the right end of the pin body 1 is subjected to the diameter difference treatment, no matter which end of the pin body 1 is inserted into the hinge through hole, the inner diameter of the whole hinge through hole is damaged at the initial time of insertion, so that when the pin body 1 is completely inserted, the friction force between the pin body 1 and the hinge may still be not large.
Further, in order to avoid excessive friction force of the pin shaft body 1 in hinge use, the difference between the maximum diameter of the straight knurled part 2 and the diameter of the pin shaft body 1 is less than or equal to 0.1mm; the difference between the radial long axis of the elliptic cylinder part 3 and the diameter of the pin shaft body 1 is less than or equal to 0.1mm; the difference between the radial short axis of the elliptic cylinder part 3 and the diameter of the pin shaft body 1 is less than or equal to 0.1mm. As shown in fig. 1, the diameter of the pin body 1 is 2mm, the maximum diameter of the straight knurled part 2 is 2.1mm, and the radial short axis of the elliptic cylinder part 3 is 1.9mm; as shown in fig. 2, the radial long axis of the elliptic cylinder part 3 is 2.1mm.
The above description is only of the preferred embodiment of the present utility model, and is not intended to limit the present utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of the present utility model or modifications to equivalent embodiments using the methods and technical contents disclosed above, without departing from the scope of the technical solution of the present utility model. Therefore, all equivalent changes according to the shape, structure and principle of the present utility model are covered in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a round pin axle of increase frictional force, includes round pin axle body (1), its characterized in that, along the axial direction of round pin axle body (1), the middle part position of round pin axle body (1) sets up to straight line knurl portion (2), the one end of round pin axle body (1) sets up to elliptic cylinder portion (3), the maximum diameter of straight line knurl portion (2) is greater than the diameter of round pin axle body (1), the radial major axis of elliptic cylinder portion (3) is greater than the diameter of round pin axle body (1), the radial minor axis of elliptic cylinder portion (3) is less than the diameter of round pin axle body (1).
2. A pin for increasing friction according to claim 1, characterized in that the difference between the maximum diameter of the knurled straight portion (2) and the diameter of the pin body (1) is less than or equal to 0.1mm.
3. A friction-increasing pin according to claim 1, characterized in that the difference between the radial long axis of the elliptic cylinder part (3) and the diameter of the pin body (1) is less than or equal to 0.1mm.
4. A friction-increasing pin according to claim 1, characterized in that the difference between the radial minor axis of the elliptic cylinder part (3) and the diameter of the pin body (1) is less than or equal to 0.1mm.
5. A pin for increasing friction according to claim 1, characterized in that the axial length of the knurled portion (2) is 3mm.
6. A friction-increasing pin according to claim 1, characterized in that the axial length of the elliptic cylinder part (3) is 2.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322628535.0U CN220956405U (en) | 2023-09-27 | 2023-09-27 | Pin shaft for increasing friction force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322628535.0U CN220956405U (en) | 2023-09-27 | 2023-09-27 | Pin shaft for increasing friction force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220956405U true CN220956405U (en) | 2024-05-14 |
Family
ID=91025337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322628535.0U Active CN220956405U (en) | 2023-09-27 | 2023-09-27 | Pin shaft for increasing friction force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220956405U (en) |
-
2023
- 2023-09-27 CN CN202322628535.0U patent/CN220956405U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2003018421A1 (en) | Hinge structure for container | |
| CN220956405U (en) | Pin shaft for increasing friction force | |
| CN217937695U (en) | Hinge device for folding bed | |
| US7140661B1 (en) | Torsion device | |
| CN109324424B (en) | Novel glasses hinge mechanism and glasses | |
| CN214740667U (en) | Hinge capable of reducing opening force of freezer door body | |
| CN208169329U (en) | A kind of resilient support linkage | |
| CN209799672U (en) | Hinge capable of being fixed | |
| CN208364592U (en) | Bracket bulb assembly for electric tail gate strut system | |
| CN206193379U (en) | No screw thread pile head structure of glasses leg | |
| CN202381521U (en) | Automatic opening rotating shaft | |
| CN221119546U (en) | Concealed hinge | |
| CN215718014U (en) | Automatic closing spring hinge | |
| CN215520388U (en) | Connecting rod with locking point | |
| CN214547845U (en) | Pull rod assembly with hook | |
| CN218522479U (en) | Integral type lock draw bar structure | |
| CN219887827U (en) | Hinge and window thereof | |
| CN212373639U (en) | Aircraft slide lock | |
| CN216363929U (en) | Hardware pulling piece of high-torque catapult head | |
| CN210430559U (en) | Power distribution cabinet door connecting device | |
| CN221194596U (en) | Door lock mechanism for storage cabinet | |
| CN211129940U (en) | Zipper head | |
| CN216057419U (en) | Turnover structure of wireless earphone box | |
| CN211693108U (en) | Anti-loosening stainless steel rod piece | |
| CN215402963U (en) | A close and cover mechanism for stereoplasm carton |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |