WO2015027894A1

WO2015027894A1 - Fastener

Info

Publication number: WO2015027894A1
Application number: PCT/CN2014/085158
Authority: WO
Inventors: 赵元珍; 赵育良; 王蔚青; 贾昆; 王明林; 侯骏; 王亚薇; 李海龙
Original assignee: 国家电网公司; 国网青海省电力公司; 国网青海省电力公司信息通信公司
Priority date: 2013-08-26
Filing date: 2014-08-26
Publication date: 2015-03-05
Also published as: CN203445179U

Abstract

A fastener comprises a first screw (10), a second screw (20), and a connection lug (30). A groove (122) is formed in a screw cap (12) of the first screw (10). The second screw (20) fixes the connection lug (30) between the first screw (10) and the second screw (20) by means of the groove (122). The fastener solves the problem of loose contact even contact failure caused by the fact that the fastening between a connection lug matching a cable and a screw matching a storage battery is not firm, thereby avoiding the potential hazard of cable looseness, and reducing the probability of contact point oxidation phenomenon.

Description

TECHNICAL FIELD The present invention relates to the field of machinery, and in particular to a fastener. BACKGROUND OF THE INVENTION Screw devices are often equipped with positive and negative poles of a battery, which facilitates electrical connection between the battery and the battery, and between the battery and the electrical equipment. The batteries produced by the general manufacturers are all common screws on the market, if needed. Adding cables to the poles of the battery (such as the battery voltage sampling line of the information acquisition device, the battery charging cable of the battery charging device, etc.), it is necessary to select the cable matching nose according to the size of the screw to meet the installation. demand. Since different battery manufacturers have no specifications for the size of the battery selection screws, and depending on the capacity of the battery, the size of the screws is different. This causes the size of the screws of the battery to vary, resulting in a uniform wiring nose connection. In order to be able to adapt to different sizes of screws with as few cable sizes as possible, and for the convenience of installation, it is common practice to use a U-shaped opening wiring nose, but the opening wiring nose has the following drawbacks: Long-term use is prone to occur Loose, contact point oxidation and contact area between the battery pole and the matching screw are reduced, resulting in poor contact or even contact failure between the cable matching wiring nose and the battery matching screw. In view of the problem that the fastening between the cable matching wiring nose and the battery supporting screw in the related art is not tight, resulting in poor contact or even contact failure, an effective solution has not been proposed yet. SUMMARY OF THE INVENTION A main object of the embodiments of the present invention is to provide a fastener to solve the problem of poor fastening between the cable matching wiring nose and the battery supporting screw, resulting in poor contact or even contact failure. According to an aspect of the embodiments of the present invention, a fastener is provided, including: a first screw, a second screw, and a wiring nose, wherein the screw of the first screw is provided with a groove, the second A screw secures the wiring nose between the first screw and the second screw through the groove. Preferably, the wiring nose comprises: a closed wiring nose or a U-port wiring nose. Preferably, the inner surface of the groove and the screw rod of the second screw are provided with matching threads. Preferably, the rotation axis of the groove does not coincide with the rotation axis of the first screw. Preferably, the upper surface of the screw cap of the first screw is a flat surface. Preferably, the fastener further comprises a gasket disposed on the screw rod of the second screw. Preferably, the first screw is a hexagon socket screw, and the hexagon socket screw comprises a screw cap having an inner hexagonal counterbore, wherein the groove is located in the hexagon socket counterbore. Preferably, the second screw is a Phillips screw or a Hexagon socket screw. Preferably, the wiring nose comprises a fixing ring and a wiring head, wherein the fixing ring is disposed at an angle of 90 degrees to the terminal. Preferably, the second screw is engaged with the first screw and integrally sinks into the groove. According to the embodiment of the invention, a groove is arranged on the screw cap of the first screw, and the second screw is fixed between the first screw and the second screw through the groove, thereby solving the cable matching wiring. The fastening between the nose and the battery supporting screws is not strong, resulting in poor contact or even contact failure, avoiding the hidden trouble of the cable loosening, and reducing the probability of occurrence of contact point oxidation. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG. 1 is a schematic structural view of a fastener according to an embodiment of the present invention; FIG. 2 is a schematic structural view of a fastener according to an embodiment of the present invention; FIG. 3 is a fastener according to an embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 4 is a schematic view showing a first screw forming of a fastener according to a preferred embodiment of the present invention; and FIG. 5 is a schematic structural view of a wiring nose according to a preferred embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. The present embodiment provides a fastener. FIG. 1 is a schematic structural view of a fastener according to an embodiment of the present invention. As shown in FIG. 1, the fastener includes: a first screw 10, a second screw 20, and a wiring. The nose 30, wherein the screw cap 12 of the first screw 10 is provided with a groove 122, and the second screw 20 fixes the terminal nose 30 between the first screw ₁₀ and the second screw 20 through the groove 122. With the above-mentioned fastener, the wiring nose 30 is fastened to the screw cap 12 of the first screw 10 by the second screw 20. For different types of the wiring nose 30, it is only necessary to change the size or type of the second screw 20. , the wiring nose 30 can be fastened on the first screw 10 without changing the size of the first screw 10, thereby solving the problem that the cable matching wiring nose and the battery matching screw are not fastened, resulting in poor contact. Even the problem of contact failure avoids the hidden trouble of cable loosening and reduces the probability of occurrence of contact point oxidation. In addition, with the above fastener, the first screw 10 can be removed without installing the wiring nose 30, thereby facilitating the disassembly and assembly of the wiring nose 30. Wherein, the wiring nose 30 can be a closed wiring nose or a U-port wiring nose. Optionally, the wiring nose 30 is a closed wiring nose, which is less prone to loosening and from the screw rod of the second screw 20 than the U-port wiring nose. Fall off. Optionally, the inner surface of the groove 122 and the screw rod of the second screw 20 are provided with matching threads through which the second screw 20 is fastened to the first screw 10. 2 is a schematic view showing a preferred structure of a fastener according to an embodiment of the present invention. As shown in FIG. 2, optionally, the rotation axis of the groove 122 does not coincide with the rotation axis of the first screw 10. By setting the rotation axes of the two to be non-parallel, it is possible to prevent the first screw 10 from loosening due to the action of the torsional moment without twisting the second screw 20, thereby preventing the second screw 20 from facing the first screw 10 interference. Optionally, the upper surface of the screw cap of the first screw 10 is a flat surface. By setting the upper surface of the screw cap of the first screw 10 to a flat surface, the contact area of the wiring nose 30 with the screw cap of the first screw 10 can be increased, so that the wiring nose 30 is more firmly fastened to the first screw 10 Two screws between 20. Optionally, the fastener further includes a gasket 40 that is sleeved on the screw rod of the second screw 20. By arranging different sizes of spacers on the second screw 20, it is possible to adapt to the wiring noses of different aperture sizes. Optionally, the first screw 10 is a hexagon socket screw, and the hexagon socket screw includes a screw cap 12 having an inner hexagonal counterbore, wherein the groove 122 is located in the hexagon socket counterbore. Optionally, the second screw 20 is a Phillips screw or a Hexagon socket screw. Optionally, the wiring nose 30 includes a retaining ring 32 and a terminal 34, wherein the retaining ring 32 is disposed at an angle of 90 degrees to the terminal 34. The retaining ring 32 is disposed to be sleeved on the screw shaft of the second screw 20 and to achieve a fixation between the first screw 10 and the second screw 20, and the terminal 34 is disposed to be fixed to the cable. 3 is a schematic cross-sectional view showing a preferred structure of a fastener according to an embodiment of the present invention. As shown in FIG. 3, optionally, the second screw 20 is engaged with the first screw 10 and integrally sinks into the recess 122. In the case where the second screw 20 is integrally sunk into the recess 122, the wiring nose 30 is also incorporated into the recess 122 along with the second screw 20. Optionally, the lug 30 is fixed at 90 degrees to the lug 34 by the retaining ring 32. It is arranged in such a way that the wiring nose 30 can be more easily accommodated in the groove. Optionally, the first screw 10 and the second screw 20 are both hexagonal screws. When the second screw 20 is completely sunk into the groove 122, the first screw 10 or the second screw 20 can be disassembled from each other. Will not affect each other. The following description will be made in conjunction with the preferred embodiments. The manufacturing steps of the fastener of a preferred embodiment are as follows: Step 1: As shown in FIG. 4, the screw is processed according to the inner hexagonal screw (ie, the hexagonal screw), and after the whole screw is formed, a process is added, for example: In the upper direction, tap the thread with a diameter of 3mm and a depth of 10mm. Step 2: Replace the existing matching screw of the battery with the screw and connect it to the battery pole. Step 3: As shown in Figure 5, the cable side has a hole diameter of 3.5. Mm type 0 closed wiring nose; Step 4: Fix the cable lug to the special screw with a countersunk head screw with a diameter of 3mm and a depth of 6mm/8mm/10mm. Through the above steps, a fastener that can be attached to the battery post is produced. The invention solves the problem that the fastening between the cable matching wiring nose and the battery supporting screw is not strong, resulting in poor contact or even contact failure, thereby achieving the size of the unified cable matching wiring nose, and avoiding the hidden trouble of the cable being loose. The cable and the screw can be in close contact, the probability of occurrence of contact point oxidation is reduced, and the size of the cable side wiring nose can be unified, so that the size of the wiring nose and the screw rod of the screw connected to the battery pole The size is irrelevant. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A fastener, comprising: a first screw, a second screw, and a wiring nose, wherein a screw is disposed on a screw cap of the first screw, and the second screw passes through the groove The wiring nose is fixed between the first screw and the second screw. The fastener according to claim 1, wherein the wiring nose comprises: a closed wiring nose or a u-connecting wire nose. The fastener according to claim 1, wherein the groove inner surface and the screw of the second screw are provided with matching threads. The fastener according to claim 1, wherein a rotation axis of the groove does not coincide with a rotation axis of the first screw. The fastener according to claim 1, wherein an upper surface of the screw cap of the first screw is a flat surface. The fastener according to claim 1, wherein the fastener further includes a spacer that is sleeved on a screw shaft of the second screw. The fastener according to claim 1, wherein the first screw is a hexagon socket screw, and the hexagon socket screw includes a screw cap having an inner hexagonal counterbore, wherein the groove is located at the inner hexagon Sinking in the hole. The fastener according to claim 1, wherein the second screw is a Phillips screw or a Hexagon socket screw. The fastener according to any one of claims 1 to 8, wherein the wiring nose comprises a fixing ring and a wiring head, wherein the fixing ring is disposed at an angle of 90 degrees with the wiring head. The fastener according to claim 9, wherein said second screw is engaged with said first screw and integrally sinks into said recess.