Guide nail and guide hole synchronous fastening device suitable for electric connector

Abstract

The utility model belongs to the technical field of connector fastening devices, and particularly provides a synchronous fastening device suitable for a guide nail and a guide hole of an electric connector, which is characterized in that the lower part of a cover plate is connected with a shell, the upper part of the shell is internally connected with a plurality of gears in sequence from left to right, and the lower part of a middle shaft of each gear is sleeved with a bearing II; a plurality of first bearings are sequentially connected into the lower portion of the cover plate from left to right, the upper portion of a middle shaft of a gear is sleeved with each first bearing, every two adjacent gears are meshed, and a wrench is sleeved with the center shaft of each gear. The electric connector solves the problems that a guide nail needs to be alternately rotated when an existing electric connector is fastened, the rotation degree is generally one buckle or two buckles, the production efficiency is low, the guide nail and a guide hole are easily locked in the operation process, product reworking is caused, and the production quality of products is affected. The guide nail and the guide hole are fastened and synchronized, the guide nail and the guide hole are prevented from being locked, operation is easy, and the production quality of products is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of connector fastening devices, and particularly relates to a synchronous fastening device for guide pins and guide holes of an electrical connector. Background Art

[0002] An electrical connector is a bridge for information transmission between components or systems and a key link for information interaction.

[0003] The function of the power transfer box is to provide a path and installation platform support for electrical signal transmission. The product is large in volume and weight, and the installation operation space is narrow. When fastening a traditional electrical connector, the guide pin needs to be rotated alternately multiple times, and the rotation degree is generally one or two turns. The production efficiency is low, and it is extremely easy to cause the guide pin and the guide hole to be locked during the operation, resulting in product rework and affecting the production quality of the product.

[0004] The Chinese patent document with the publication number CN113054467A discloses a highly reliable and ultra-small rectangular plug electrical connector, including: terminals, D-type sockets, metal flanges, potting shells, insulating isolation plates, fasteners, etc. The terminals are divided into pin-type terminals with a split groove and closed-end hollow structure with a flared mouth or jack-type terminals with a conical head and round rod structure, which are evenly distributed in the D-type sockets on the metal flange and fixed by an insulating plate. The metal flange and the potting shell are organically combined. The wires to be installed are connected to the terminals, isolated by the insulating isolation plate, and led out from the potting shell. When fastening the fasteners in this document, the guide pins and the guide pins are rotated alternately, and the rotation degree is generally one or two turns. The production efficiency is low, and it is extremely easy to cause the guide pin and the guide hole to be locked during the operation, resulting in product rework and affecting the production quality of the product. Summary of the Utility Model

[0005] The purpose of a synchronous fastening device for guide pins and guide holes of an electrical connector provided by the utility model is to overcome the problems in the prior art that when fastening an electrical connector, the guide pin is rotated alternately, the rotation degree is generally one or two turns, the production efficiency is low, and it is extremely easy to cause the guide pin and the guide hole to be locked during the operation, resulting in product rework and affecting the production quality of the product.

[0006] Therefore, the utility model provides a synchronous fastening device for guide pins and guide holes of an electrical connector, including a cover plate, a housing, gears, a first bearing, a second bearing, and a wrench. The number of gears, the first bearing, the second bearing, and the wrench is multiple; the cover plate is connected to the housing below. Multiple gears are sequentially connected in the upper part of the housing from left to right. The lower part of the central axis of each gear is sleeved with the second bearing. Multiple first bearings are sequentially connected in the lower part of the cover plate from left to right. The upper part of the central axis of each gear is sleeved in the first bearing. Adjacent gears are meshed with each other, and the wrench is sleeved in the central axis of the gear.

[0007] Preferably, the number of the gears is 3.

[0008] Preferably, the cover plate is in the shape of a cuboid, and a first groove is formed in the middle of the lower surface of the cuboid.

[0009] Preferably, the first groove is formed by connecting a plurality of first cylinders in series from left to right. A first through hole is formed on the central axis of each first cylinder, and the first through hole penetrates the cover plate vertically.

[0010] Preferably, the housing is in the shape of a cuboid, and a second groove is formed in the middle of the upper surface of the cuboid.

[0011] Preferably, the second groove is formed by connecting a plurality of second cylinders in series from left to right. A second through hole is formed on the central axis of each second cylinder, and the second through hole penetrates the housing vertically.

[0012] Preferably, the first cylinder and the second cylinder have the same aperture, and the first through hole and the second through hole have the same aperture.

[0013] Preferably, the wrench is an L-shaped wrench.

[0014] Preferably, the cover plate and the housing are connected by bolts.

[0015] Preferably, the edges and corners of the cover plate and the housing are all rounded.

[0016] Advantages of the present utility model:

[0017] 1. The synchronous fastening device for the guide pin and the guide hole of the electrical connector provided by the present utility model includes a cover plate, a housing, a gear, a first bearing, a second bearing and a wrench. When fastening the guide pin and the guide hole, the housing is placed in the area to be fastened. Insert the wrench into the corresponding gear and rotate the wrench (whether it is a single wrench or multiple wrenches rotating synchronously), the gear corresponding to the wrench can be rotated, and the multiple gears will rotate synchronously through the tooth system. The rotation angles of the spaced gears can maintain the same pace; the fastening of the guide pin and the guide hole is synchronized, preventing the locking between the guide pin and the guide hole, easy to operate, and improving the production quality of the product.

[0018] 2. The synchronous fastening device for the guide pin and the guide hole of the electrical connector provided by the present utility model reduces the friction force through two layers of bearings, namely the first bearing and the second bearing, and ensures the stability during operation.

[0019] 3. The synchronous fastening device for the guide pin and the guide hole of the electrical connector provided by the present utility model, the first groove is formed by connecting a plurality of first cylinders in series from left to right, and the second groove is formed by connecting a plurality of second cylinders in series from left to right, ensuring the flexibility of the first bearing and the second bearing during operation. Description of the Drawings

[0020] The present utility model will be further described in detail below with reference to the drawings.

[0021] Figure 1 It is the front view of the main structure of the synchronous fastening device for the guide pins and guide holes of the electrical connector;

[0022] Figure 2 It is the bottom view of the cover plate structure;

[0023] Figure 3 It is Figure 2 The schematic structural diagram of A-A in

[0024] Figure 4 It is the top view of the housing structure;

[0025] Figure 5 It is the front view of the housing structure;

[0026] Figure 6 It is Figure 5 The structural diagram in the K direction of

[0027] Figure 7 It is Figure 4 The schematic structural diagram of A-A in

[0028] Figure 8 It is the structural diagram of the gear;

[0029] Figure 9 It is the front view of the wrench structure;

[0030] Figure 10 It is the top view of the wrench structure.

[0031] Explanation of reference numerals: 1. Cover plate; 2. Housing; 3. Gear; 4. First bearing; 5. Second bearing; 6. Wrench;

[0032] 1.1. First groove; 1.11. First cylinder; 1.12. First through hole;

[0033] 2.1. Second groove; 2.11. Second cylinder; 2.12. Second through hole; 2.2. Third groove. Detailed implementation manners

[0034] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0035] Example 1:

[0036] As Figure 1As shown in the figure, a synchronous fastening device for guide pins and guide holes of an electrical connector includes a cover plate 1, a housing 2, gears 3, a first bearing 4, a second bearing 5, and a wrench 6, and the number of gears 3, the first bearing 4, the second bearing 5, and the wrench 6 is multiple; the cover plate 1 is connected to the housing 2 below, and multiple gears 3 are sequentially connected inside the upper part of the housing 2 from left to right. The lower part of the central axis of each gear 3 is sleeved with the second bearing 5, and multiple first bearings 4 are sequentially connected inside the lower part of the cover plate 1 from left to right. The upper part of the central axis of each gear 3 is sleeved inside the first bearing 4. Adjacent gears 3 are meshed with each other, and the wrench 6 is sleeved inside the central axis of the gear 3.

[0037] Specifically, when fastening the guide pin and the guide hole, place the housing 2 in the area to be fastened. Insert the wrench 6 into the corresponding gear 3. Rotating the wrench 6 (whether rotating a single wrench 6 or synchronously rotating multiple wrenches 6) can make the gear 3 corresponding to the wrench 6 rotate. Multiple gears 3 will rotate synchronously through the tooth system, and the rotation angles of the spaced gears 3 can maintain the same pace; synchronize the fastening of the guide pin and the guide hole, prevent locking between the guide pin and the guide hole, is easy to operate, and improves the production quality of the product.

[0038] Embodiment 2:

[0039] On the basis of Embodiment 1, as Figure 8 shown, the number of the gears 3 is 3.

[0040] Specifically, rotating the wrench 6 (whether left, right, or simultaneously) can make the gear 3 corresponding to the wrench 6 rotate. The 3 gears will rotate synchronously through the tooth system. The number of teeth of the gears 3 is the same, so the rotation angles can maintain the same pace; if 2 gears 3 are used, the rotation angles of the wrench 6 are just opposite, so 3 gears 3 must be used to ensure the same direction.

[0041] Preferably, as Figure 2 and Figure 3 shown, the shape of the cover plate 1 is a cuboid, and a first groove 1.1 is opened in the middle of the lower surface of the cuboid.

[0042] Specifically, the first groove 1.1 is convenient for placing the first bearing 4.

[0043] Preferably, the shape of the first groove 1.1 is formed by connecting multiple first cylinders 1.11 in series from left to right. A first through hole 1.12 is opened on the central axis of each first cylinder 1.11, and the first through hole 1.12 penetrates the cover plate 1 up and down.

[0044] Specifically, the cover plate 1 has a cuboid structure. The 3 first bearings 4 are respectively assembled into the structure of the first groove 1.1 formed by connecting multiple first cylinders 1.11 in series from left to right on the cover plate 1 through clearance fit, and the height of the first bearing 4 cannot exceed the surface of the cover plate 1 to ensure the flexible operation of the first bearing 4.

[0045] Specifically, the cover plate 1 is machined from hard aluminum, and the surface of the cover plate 1 is subjected to hard anodizing. Four threaded through holes are designed at the four corners of the cover plate 1.

[0046] Preferably, as Figures 4 - 7 shown, the shape of the housing 2 is a cuboid, and a second groove 2.1 is provided in the middle of the upper surface of the cuboid.

[0047] Specifically, the second groove 2.1 is convenient for placing the second bearing 5.

[0048] Preferably, the shape of the second groove 2.1 is formed by connecting a plurality of second cylinders 2.11 in series from left to right. A second through hole 2.12 is provided on the central axis of each second cylinder 2.11, and the second through hole 2.12 penetrates the housing 2 up and down.

[0049] Specifically, during use, first assemble the second bearing 5 into the second cylinder 2.11 to ensure that the second bearing rotates flexibly. Then, insert one end of the long shafts of the three gears 3 into the inner hole of the second bearing 5, and at the same time ensure that the tooth systems of the three gears 3 are normally engaged and rotate normally.

[0050] Preferably, the apertures of the first cylinder 1.11 and the second cylinder 2.11 are the same, and the apertures of the first through hole 1.12 and the second through hole 2.12 are the same.

[0051] Specifically, the same aperture improves the structural stability during use.

[0052] Preferably, as Figure 9 and Figure 10 shown, the wrench 6 is an L-shaped wrench.

[0053] Specifically, the L-shaped wrench has a simple structure and is easy to operate. It is machined from stainless steel. In order to ensure mechanical strength, the wrench 6 is heat-treated to HRC38 - HRC42 and the surface is subjected to hard anodizing.

[0054] Preferably, the structure of the wrench 6 is an internal hexagonal structure. The structure is simple.

[0055] Preferably, the cover plate 1 and the housing 2 are connected by bolts.

[0056] Specifically, the bolt connection is simple and is a detachable connection.

[0057] Preferably, the corners of the cover plate 1 and the housing 2 are all rounded.

[0058] Specifically, the rounded corners improve the safety during use. The housing 2 is machined from hard aluminum, and the surface of the housing 2 is subjected to hard anodizing. Four semi-threaded bottom holes are designed at the four corners of the housing 2.

[0059] Preferably, a third groove 2.2 is formed in the lower surface of the housing 2.

[0060] Specifically, the third groove 2.2 facilitates positioning and supporting when fastening the guide pins and guide holes of the electrical connector.

[0061] Preferably, the third groove 2.2 is in the shape of a rectangular groove.

[0062] Specifically, the rectangular groove has a simple structure.

[0063] Preferably, the gear 3 has a "middle" - shaped structure.

[0064] Specifically, the gear 3 is machined from stainless steel. To ensure mechanical strength, the gear 3 is heat - treated to HRC38 - HRC42 and surface - hardened anodized. The number of teeth, module, pressure angle, etc. of the gear 3 are determined according to the assembly requirements. The number of teeth, module, pressure angle and other indicators are determined according to the size of the synchronization device and the usage requirements of the transmitted torque. The gear 3 is basically the conventional parameter in gear design. There is a fixed conversion relationship between the tooth - system parameters. For example, the tooth - system can choose 15 or 30, but the transmission efficiency and torque between the two will be different; generally, the fewer the number of teeth, the larger the module. Only several main technical indicators in gear design are selected, and there are no special design requirements for the indicators themselves.

[0065] Taking 3 gears as an example, the usage method of the present utility model is as follows:

[0066] Assemble 3 first bearings 4 into the cylindrical first counter - bores 1.11 of the cover plate 1 respectively; assemble 3 second bearings 5 into the cylindrical second counter - bores 2.11 of the housing 2 respectively, then connect the central shafts of the 3 gears 3 into the first bearings 4 and the second bearings 5. Face the end of the first bearing 4 of the cover plate 1 towards the end of the second bearing of the housing 2 to ensure normal meshing and flexible rotation between the tooth - systems of the 3 gears 3; fasten the two with 4 sets of bolts, but do not tighten them first; at the same time, insert 2 wrenches 6 into the housing 2 from the inner holes in the middle of the gears 3 until the bottom, rotate the wrenches 6 and check whether the rotation is flexible, then tighten the 4 sets of bolts to complete the assembly; the fastening of the guide pins and guide holes is the assembly of the guide pins and guide holes on the same side of the electrical connectors corresponding to the two connectors. Place the parts to be installed into the housing 2 (the position below the gear 3), the third groove 2.2 of the housing 2 is clamped at the position to be fixed. Rotate the wrench 6, and the corresponding gear 3 of the wrench 6 can be rotated. The 3 gears rotate synchronously through the tooth - system, and the 2 wrenches 6 rotate synchronously to make the fastening of the guide pins and guide holes synchronous.

[0067] In the description of the present utility model, it should be understood that if there are terms such as "left", "inner", "right", etc., the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, 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. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and should not be construed as a limitation to the present utility model.

[0068] The above examples are merely illustrative of the present utility model and do not constitute a limitation to the protection scope of the present utility model. Any design identical or similar to the present utility model falls within the protection scope of the present utility model.

Claims

1. A synchronous fastening device for the guide pins and guide holes of an electrical connector, characterized in that: It includes a cover plate (1), a housing (2), gears (3), a first bearing (4), a second bearing (5), and a wrench (6), and the numbers of the gears (3), the first bearing (4), the second bearing (5), and the wrench (6) are all multiple; the cover plate (1) is connected to the housing (2) below, multiple gears (3) are sequentially connected inside the upper part of the housing (2) from left to right, the lower part of the central axis of each gear (3) is sleeved with the second bearing (5) outside, multiple first bearings (4) are sequentially connected inside the lower part of the cover plate (1) from left to right, the upper part of the central axis of each gear (3) is sleeved inside the first bearing (4), adjacent two gears (3) are meshed with each other, and the wrench (6) is sleeved inside the central axis of the gear (3).

2. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 1, characterized in that: The number of the gears (3) is 3.

3. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 1, characterized in that: The cover plate (1) is in the shape of a cuboid, and a first groove (1.1) is opened in the middle of the lower surface of the cuboid.

4. The synchronous fastening device for the guide pin and guide hole of the electrical connector according to claim 3, characterized in that: The shape of the first groove (1.1) is formed by connecting multiple first cylinders (1.11) in series from left to right, and a first through hole (1.12) is opened on the central axis of each first cylinder (1.11), and the first through hole (1.12) penetrates through the cover plate (1) up and down.

5. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 4, characterized in that: The housing (2) is in the shape of a cuboid, and a second groove (2.1) is opened in the middle of the upper surface of the cuboid.

6. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 5, characterized in that: The shape of the second groove (2.1) is formed by connecting multiple second cylinders (2.11) in series from left to right, and a second through hole (2.12) is opened on the central axis of each second cylinder (2.11), and the second through hole (2.12) penetrates through the housing (2) up and down.

7. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 6, characterized in that: The apertures of the first cylinder (1.11) and the second cylinder (2.11) are the same, and the apertures of the first through hole (1.12) and the second through hole (2.12) are the same.

8. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 1, wherein: The wrench (6) is an L-shaped wrench.

9. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 1, characterized in that: The cover plate (1) and the housing (2) are connected by bolts.

10. The synchronous fastening device for the guide pin and guide hole of an electrical connector according to claim 6, characterized in that: The edges and corners of the cover plate (1) and the housing (2) are all rounded.

Images