Guide pin

Abstract

The guide pin comprises a guide main body and a guide pin body in clearance fit with the guide main body, the guide main body comprises a main body and a leaning and protecting part which is fixedly connected with the bottom part of the main body and protrudes out of the main body, and a positioning column and a locking structure are arranged at the bottom of the main body. The main body is provided with a positioning through hole vertical to the leaning and protecting part, the positioning column and the locking structure, and the guide pin is in clearance fit with the positioning through hole. When the guiding device is applied, the external inserting plate is assembled and connected with the positioning column at the bottom of the guiding main body, the locking structure and the external inserting plate are fixed through threaded connection, the external inserting plate leans against the side face of the leaning and protecting part, and the leaning and protecting part provides leaning and protecting support for the external inserting plate. The positioning through hole is perpendicular to the leaning and protecting part, the positioning column and the locking structure, that is, the guide pin is perpendicular to the leaning and protecting part, the positioning column and the locking structure, so that the external back plate and the insertion plate can be perpendicularly arranged, and the back plate and the insertion plate can be distributed and arranged in a narrow space.

Description

Technical Field

[0001] The utility model relates to the technical field of communications, in particular to a guide pin. Background Art

[0002] With the growing demand for communication bandwidth, connectors have been widely used in the electronic field. As the size of electronic equipment is getting smaller and smaller, in order to make more efficient use of space, it is usually necessary to place the plug-in board and the fixed backplane in different positions. This requires a connector to be used, and the plug-in board and the backplane must be located in the correct position after installation to facilitate the transmission of electronic signals and the service life of electronic products. How to accurately position the plug-in board and the backplane in a small space is a problem solved by the utility model. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a guide pin.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a guide pin, including a guide part, a guide pin with a clearance fit with the guide part, the guide part including a main body, a supporting part fixedly connected to the bottom part of the main body and protruding from the main body, the main body and the supporting part form a 7 shape, the bottom of the main body is provided with a positioning column and a locking structure, the positioning column and the locking structure protrude from the bottom of the main body, the protruding direction of the positioning column and the locking structure is parallel to the supporting part, the main body is provided with a positioning through hole perpendicular to the supporting part, the positioning column and the locking structure, and the guide pin is with a clearance fit with the positioning through hole.

[0005] Preferably, a positioning edge 1 is provided on the inner side of the positioning through hole, the guide pin includes a positioning pin entering the positioning through hole, a stop portion fixedly connected to the positioning pin, and a positioning portion fixedly connected to the stop portion, the guide pin is provided with a positioning screw hole that passes through the positioning portion and the stop portion and partially extends to the positioning pin, and the positioning pin is provided with a positioning edge 2 that matches the positioning edge 1.

[0006] Preferably, the positioning portion comprises a circular base and a protrusion fixedly connected to the circular base, and the direction of the protrusion is the same as the direction of the second positioning edge.

[0007] Preferably, the positioning column comprises a positioning cylindrical body, and positioning flanges fixed to the positioning cylindrical body and distributed on the outer circumference of the positioning cylindrical body. The positioning flanges are provided in plurality and are evenly spaced and distributed on the outer circumference of the positioning cylindrical body.

[0008] Preferably, the positioning pin includes a guide portion including a positioning edge, a transition portion fixedly connected to the guide portion and the stop portion, a chamfer is provided at the end of the positioning through hole facing the stop portion, and the transition portion is partially defined within the chamfer.

[0009] Preferably, a material washing hole is provided at the bottom of the supporting portion.

[0010] The beneficial effect of the utility model is to provide a guide pin. When the utility model is used, the external plug-in plate is assembled and connected with the positioning column at the bottom of the guide body. The positioning flanges are provided in a plurality and evenly spaced on the outer peripheral side of the positioning cylindrical body. After the external plug-in card is sleeved on the outer side of the positioning column, it is ensured that the external plug-in card cannot rotate and displace around the positioning column. Thus, the stability of the external plug-in card is ensured. The external back plate is sleeved on the outer side of the guide pin, and then the back plate and the guide pin are fixed by screws. The guide part enters the positioning through hole through the chamfer and cooperates with the clearance of the positioning through hole. As the guide part enters the positioning through hole, the transition part contacts a certain position of the chamfer, thereby missing the position of the entire positioning pin in the positioning through hole, thereby ensuring the accuracy of the back plate position. The guide pin enters the positioning through hole, and because the back plate is fixedly connected to the external mechanism, the guide pin can position the external back plate in an appropriate position, and the back plate can fix the guide pin at the same time. The positioning through hole is perpendicular to the supporting part, the positioning column and the locking structure, that is, the guide pin is perpendicular to the supporting part, the positioning column and the locking structure. Therefore, the external back plate and the plug plate can be vertically arranged, so that the back plate and the plug plate can be allocated and arranged in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a structural schematic diagram of a guide pin.

[0012] Figure 2 The utility model is a schematic diagram of the exploded structure of a guide pin.

[0013] Figure 3 The utility model is a structural schematic diagram of a guide part of a guide pin.

[0014] Figure 4 The utility model is a structural schematic diagram of a guide pin of a guide pin.

[0015] Figure 5 The utility model is a schematic diagram of the application structure of a guide pin. DETAILED DESCRIPTION

[0016] The implementation methods of the present invention are described below in conjunction with the accompanying drawings and relevant embodiments. The implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as common knowledge in this technical field and can be known and mastered by technical personnel in this technical field.

[0017] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "one", "two", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. It should also be noted in the description of the present utility model that, unless otherwise clearly specified and limited, the terms "set" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0018] Reference Figures 1 to 5 The utility model is implemented as follows: a guide pin comprises a guide portion 1 and a guide pin 2 which is clearance-matched with the guide portion 1, the guide portion 1 comprises a main body 11 and a supporting portion 12 which is fixedly connected to the bottom portion of the main body 11 and protrudes from the main body 11, the main body 11 and the supporting portion 12 form a 7-shape, a positioning column 111 and a locking structure 112 are provided at the bottom of the main body 11, the positioning column 111 and the locking structure 112 protrude from the bottom of the main body 11, the protruding direction of the positioning column 111 and the locking structure 112 is parallel to the supporting portion 12, the main body 11 is provided with a positioning through hole 13 which is perpendicular to the supporting portion 12, the positioning column 111 and the locking structure 112, and the guide pin 2 is clearance-matched with the positioning through hole 13.

[0019] When the utility model is used, the external plug plate 8 is assembled and connected with the positioning column 111 at the bottom of the guide part 1, and the locking structure 112 is fixed to the external plug plate 8 by a threaded connection. The external plug plate 8 leans against the side of the supporting part 12, and the supporting part 12 provides supporting support for the external plug plate 8, ensuring the stability and firmness of the connection between the external plug plate 8 and the utility model.

[0020] The external back plate 9 is sleeved on the outside of the guide pin 2, and then the back plate 9 and the guide pin 2 are fixed by screws. The guide pin 2 is fitted with the positioning through hole 13 through a clearance, and the guide pin 2 enters the positioning through hole 13. Since the back plate 9 is fixedly connected to the external mechanism, the guide pin 2 can position the external back plate 9 in an appropriate position, and the back plate 9 can fix the guide pin 2 at the same time.

[0021] The positioning through hole 13 is perpendicular to the supporting portion 12, the positioning column 111, and the locking structure 112, that is, the guide pin 2 is perpendicular to the supporting portion 12, the positioning column 111, and the locking structure 112. Therefore, the external back plate 9 and the plug plate 8 can be vertically arranged, so that the back plate 9 and the plug plate 8 can be allocated and arranged in a narrow space.

[0022] On the basis of the above embodiment, as a further preference, a positioning edge 131 is provided on the inner side of the positioning through hole 13, and the guide pin 2 includes a positioning pin 21 entering the positioning through hole 13, a stop portion 22 fixedly connected to the positioning pin 21, and a positioning portion 23 fixedly connected to the stop portion 22; the guide pin 2 is provided with a positioning screw hole 24 which passes through the positioning portion 23 and the stop portion 22 and partially extends to the positioning pin 21; the positioning pin 21 is provided with a positioning edge 211 which matches the positioning edge 131.

[0023] The positioning pin 21 is loosely matched with the positioning through hole 13, and the external back plate 9 is sleeved on the outer side of the positioning portion 23 and abuts against the stopper portion 22, ensuring the stability of the connection between the back plate 9 and the guide pin 2. The positioning pin 21 is provided with a second positioning edge 211 that matches the first positioning edge 131, ensuring the stability and accuracy of the position of the positioning pin 21 in the positioning through hole 13, thereby ensuring the stability and accuracy of the position of the back plate 9.

[0024] On the basis of the above embodiment, as a further preference, the positioning portion 23 includes a circular base 231 and a protrusion 232 fixedly connected to the circular base 231 , and the direction of the protrusion 232 is the same as the direction of the second positioning edge 211 .

[0025] The external plug plate 8 is sleeved on the outside of the circular base 231 and the protrusion 232. At the same time, the protrusion 232 is in the same direction as the positioning edge 211. The direction of the protrusion 232 provides a visual guide for the direction in which the positioning pin 21 enters the positioning through hole 13, ensuring that the positioning edge 211 and the positioning edge 1 131 can accurately match each other, thereby ensuring the stability of the position of the positioning pin 21 in the positioning through hole 13, and further ensuring the stability of the position of the back plate 9.

[0026] On the basis of the above embodiments, as a further preference, the positioning column 111 includes a positioning cylindrical body 1111, a positioning flange 1112 fixed to the positioning cylindrical body 1111 and distributed on the outer peripheral side of the positioning cylindrical body 1111, and a plurality of positioning flanges 1112 are arranged and evenly spaced on the outer peripheral side of the positioning cylindrical body 1111.

[0027] The design of the positioning flange 1112 ensures that the external card can be more stably and accurately matched with the positioning column 111. The positioning flange 1112 is provided in multiple numbers and evenly spaced on the outer circumference of the positioning cylindrical body 1111. After the external card is sleeved on the outer side of the positioning column 111, it is ensured that the external card cannot rotate around the positioning column 111. Thus, the stability of the external card is ensured.

[0028] On the basis of the above embodiments, as a further preference, the positioning pin 21 includes a guide portion 214 including a positioning edge 131, a transition portion 212 fixedly connected to the guide portion 214 and the stop portion 22, and a chamfer 132 is provided at the end of the positioning through hole 13 facing the stop portion 22, and the transition portion 212 is partially confined within the chamfer 132.

[0029] The guide portion 214 passes through the chamfer 132 and enters the positioning hole 13 and is gap-matched with the positioning hole 13. As the guide portion 214 enters the positioning hole 13, the transition portion 212 contacts a certain position of the chamfer 132, thereby correcting the position of the entire positioning pin 21 in the positioning hole 13, thereby ensuring the accuracy of the position of the back plate 9.

[0030] On the basis of the above embodiment, as a further preference, a material washing hole 121 is provided at the bottom of the supporting portion 12 .

[0031] The utility model is produced by injection molding. If the thickness of the supporting part 12 is too thick, it is easy to deform during injection molding. The arrangement of the material washing hole 121 ensures that the supporting part 12 is not easy to deform during injection molding.

[0032] It should be noted that for the preferred implementation of the utility model, ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A guide pin, characterized in that The invention comprises a guide portion (1) and a guide pin (2) which is clearance-matched with the guide portion (1). The guide portion (1) comprises a main body (11), and a support portion (12) which is fixedly connected to the bottom portion of the main body (11) and protrudes from the main body (11). The main body (11) and the support portion (12) form a 7-shape. A positioning column (111) and a locking structure (112) are provided at the bottom of the main body (11). The positioning column (111) and the locking structure (112) protrude from the bottom of the main body (11). The protruding directions of the positioning column (111) and the locking structure (112) are parallel to the support portion (12). The main body (11) is provided with a positioning through hole (13) which is perpendicular to the support portion (12), the positioning column (111) and the locking structure (112). The guide pin (2) is clearance-matched with the positioning through hole (13).

2. A guide pin as claimed in claim 1, characterized in that A first positioning edge (131) is provided on the inner side of the positioning through hole (13); the guide pin (2) comprises a positioning pin (21) entering the positioning through hole (13), a stopper portion (22) fixedly connected to the positioning pin (21), and a positioning portion (23) fixedly connected to the stopper portion (22); the guide pin (2) is provided with a positioning screw hole (24) penetrating the positioning portion (23) and the stopper portion (22) and partially extending to the positioning pin (21); and the positioning pin (21) is provided with a second positioning edge (211) matching the first positioning edge (131).

3. A guide pin as claimed in claim 2, characterized in that The positioning portion (23) comprises a circular base (231) and a protrusion (232) fixedly connected to the circular base (231), wherein the direction of the protrusion (232) is the same as the direction of the second positioning edge (211).

4. A guide pin as claimed in claim 1, characterized in that The positioning column (111) comprises a positioning cylindrical body (1111), and a positioning flange (1112) fixed to the positioning cylindrical body (1111) and distributed on the outer peripheral side of the positioning cylindrical body (1111); a plurality of positioning flanges (1112) are provided and are evenly spaced and distributed on the outer peripheral side of the positioning cylindrical body (1111).

5. A guide pin as claimed in claim 2, characterized in that The positioning pin (21) comprises a guide portion (214) including a positioning edge (131), and a transition portion (212) fixedly connected to the guide portion (214) and the stop portion (22); a chamfer (132) is provided at an end of the positioning through hole (13) facing the stop portion (22); and a portion of the transition portion (212) is confined within the chamfer (132).

6. A guide pin as claimed in claim 1, characterized in that A material washing hole (121) is provided at the bottom of the supporting portion (12).

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