Anti-falling insulating intermediate terminal

Abstract

The utility model relates to the technical field of terminals, and discloses an anti-falling insulating intermediate terminal which comprises a sheath and a connecting terminal, the connecting terminal is located in the sheath, and the outer surface of the connecting terminal is fixedly connected with a first guide block and a second guide block respectively. According to the anti-falling insulating intermediate terminal, the relative position between the insulating sheath and the connecting terminal is effectively locked, tight and stable connection can be kept even under the adverse conditions of long-time thermal expansion and contraction, mechanical vibration, aging of the insulating sheath and the like, the risk that the insulating sheath falls off is greatly reduced, and the service life of the insulating intermediate terminal is prolonged. The first guide block and the second guide block respectively adopt a rectangular cross section and a trapezoidal cross section and are in sliding connection with the first guide groove and the second guide groove which are in corresponding shapes, so that the connection terminal is prevented from rotating in the sheath, and the fool-proof effect is enhanced through shape matching; the accuracy in the installation process is ensured, and the possibility of misoperation is reduced.

Description

Technical Field

[0001] The present application relates to the field of terminal technology, and in particular to an anti-falling insulating intermediate terminal. Background Art

[0002] In the field of electrical connections, copper tube terminal blocks (also known as intermediate bare terminals or copper tube intermediate terminals) are key accessories for achieving electrical connections and are widely used in line connections in industrial equipment, automobiles and other vehicles. These terminals have become an indispensable component of electrical connections due to their excellent conductivity and convenient connection method. The intermediate bare terminals are specially designed to facilitate the connection and disconnection of two wires, eliminating the need for complex welding or winding operations, greatly improving work efficiency and connection flexibility.

[0003] At present, interference fit is generally used to fix the insulating sheath on the middle bare terminal. However, the expansion and contraction effects will cause the fitting gap between the insulating sheath and the middle bare terminal to change, thereby affecting the stability of the fixation. Mechanical vibration may cause the insulating sheath to gradually loosen under repeated stress, and the aging of the insulating sheath will reduce its material properties, further aggravating the loosening problem. Once the insulating sheath falls off, it will not only cause the exposed electrical part to be exposed, increasing the risk of electric shock and short circuit, but may also accelerate the damage of equipment and lines due to erosion by the external environment. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the present application provides an anti-falling insulating intermediate terminal, which has the advantages of anti-falling and solves the problems raised in the background technology.

[0005] To achieve the above objectives, the present application provides the following technical solution: an anti-drop-out insulating intermediate terminal, comprising a sheath and a connecting terminal, wherein the connecting terminal is located inside the sheath, two first guide blocks and a second guide block are fixedly connected to the outer surface of the connecting terminal, and the inner wall of the sheath is respectively provided with a first guide groove and a second guide groove;

[0006] A first telescopic groove is formed on the left ends of the two first guide blocks, the sides away from each other. A first limiting block is slidably inserted into the interior of each of the first telescopic grooves. The inner walls of the two first guide grooves are each provided with a first limiting groove.

[0007] The right ends of the two second guide blocks are each provided with a second telescopic groove on a side away from each other, and a second limiting block is slidably inserted into the interior of each second telescopic groove, and the inner walls of the two second guide grooves are each provided with a second limiting groove.

[0008] Through the above scheme, by introducing the mutual cooperation mechanism between the first guide block, the second guide block and the corresponding first guide groove, the second guide groove, and the first limit block, the second limit block and the first limit groove, the second limit groove, the present device effectively locks the relative position between the insulating sheath and the connecting terminal, and can maintain a tight and stable connection even under adverse conditions such as long-term thermal expansion and contraction, mechanical vibration and aging of the insulating sheath, greatly reducing the risk of the insulating sheath falling off, thereby significantly improving the safety and reliability of the electrical connection. The first guide block and the second guide block respectively adopt rectangular and trapezoidal cross-sections, and are slidingly connected to the first guide groove and the second guide groove of the corresponding shape. This design not only avoids the rotation of the connecting terminal inside the sheath, but also enhances the anti-foolproof effect through shape matching, ensures accuracy during installation, reduces the possibility of misoperation, and improves installation efficiency.

[0009] Furthermore, the sheath is slidably connected to the connecting terminal.

[0010] With the above solution, the installation speed of the user can be increased by the sliding connection between the sheath and the connecting terminal.

[0011] Furthermore, the sheath is made of insulating material.

[0012] According to the above solution, the overall safety can be improved by setting the sheath to be an insulating material.

[0013] Furthermore, both ends of the sheath are funnel-shaped.

[0014] According to the above solution, the two ends of the sheath are funnel-shaped, so that the purpose of squeezing the first limiting block and the second limiting block can be achieved.

[0015] Furthermore, the top of the right side surface of each of the first limiting block and the second limiting block is set as an inclined surface.

[0016] According to the above solution, the inclined surfaces provided on the first and second limiting blocks can compress the second limiting block and the first limiting block into the first or second telescopic groove when the sheath contacts the limiting block.

[0017] Furthermore, a spring is installed inside each of the first telescopic slot and the second telescopic slot.

[0018] Through the above solution and the provision of the spring, the purpose of resetting the first limiting block and the second limiting block can be achieved.

[0019] Furthermore, the cross section of each first guide block is set to be rectangular, the inclined surface of each second guide block is set to be trapezoidal, and each first guide block and second guide block are slidingly connected to the first guide groove and the second guide groove adjacent thereto, respectively.

[0020] Through the above scheme, the sliding connection between the first guide block and the second guide block can prevent the connecting terminal from rotating inside the sheath. At the same time, the trapezoidal and rectangular settings can achieve an anti-foolproof effect, ensuring the connection between the first limit block and the second limit block and the first limit groove and the second limit groove.

[0021] Furthermore, the connecting terminal and the sheath are located on the same axis, and the connecting terminal and the sheath are interference fit.

[0022] With the above solution, the connection tightness can be improved by the interference fit between the connecting terminal and the sheath, and the friction coefficient between the two can be effectively increased.

[0023] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0024] The anti-falling insulating intermediate terminal effectively locks the relative position between the insulating sheath and the connecting terminal by introducing the mutual cooperation mechanism of the first guide block, the second guide block and the corresponding first guide groove, the second guide groove, and the first limit block, the second limit block and the first limit groove, the second limit groove. Even under adverse conditions such as long-term thermal expansion and contraction, mechanical vibration and aging of the insulating sheath, the connection can be kept tight and stable, which greatly reduces the risk of the insulating sheath falling out, thereby significantly improving the safety and reliability of the electrical connection. The first guide block and the second guide block respectively adopt rectangular and trapezoidal cross-sections, and are slidably connected to the first guide groove and the second guide groove of corresponding shapes. This design not only avoids the rotation of the connecting terminal inside the sheath, but also enhances the anti-foolproof effect through shape matching, ensures accuracy during installation, reduces the possibility of misoperation, and improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a cross-sectional view of the entire sheath structure for this application;

[0027] Figure 3 This is the connection terminal structure diagram for this application;

[0028] Figure 4 A cross-sectional view of the front view of the connection terminal of this application;

[0029] Figure 5 This is a cross-sectional view of the top view of the terminal of this application.

[0030] In the picture:

[0031] 1. Sheath; 2. Connecting terminal; 3. First guide block; 4. Second guide block; 5. First guide groove; 6. Second guide groove; 7. First telescopic groove; 8. First limit block; 9. First limit groove; 10. Second limit block; 11. Second limit groove; 12. Spring; 13. Second telescopic groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] See also Figure 1 、 Figure 2 and Figure 3 In this embodiment, an anti-falling insulating intermediate terminal includes a sheath 1 and a connecting terminal 2. The sheath 1 is slidably sleeved with the connecting terminal 2. The sliding sleeve connection between the sheath 1 and the connecting terminal 2 can improve the user's installation speed. The sheath 1 is made of an insulating material. By making the sheath 1 of an insulating material, the overall safety can be improved. The connecting terminal 2 is located inside the sheath 1. Two first guide blocks 3 and a second guide block 4 are fixedly connected to the outer surface of the connecting terminal 2. The inner wall of the sheath 1 is respectively provided with a first guide groove 5 and a second guide groove 6.

[0034] See also Figure 2 、 Figure 3 and Figure 5 , the left ends of the two first guide blocks 3 are each provided with a first telescopic groove 7 on a side away from each other, and a first limit block 8 is slidably inserted into the interior of each first telescopic groove 7, and the inner walls of the two first guide grooves 5 are each provided with a first limit groove 9, the connecting terminal 2 and the sheath 1 are on the same axis, and the connecting terminal 2 and the sheath 1 are interference fit. Through the interference fit of the connecting terminal 2 and the sheath 1, the connection tightness can be improved, and the friction coefficient between the two can be effectively improved. The right ends of the two second guide blocks 4 are each provided with a second telescopic groove 13 on a side away from each other, and a second limit block 10 is slidably inserted into the interior of each second telescopic groove 13, and the inner walls of the two second guide grooves 6 are each provided with a second limit groove 11.

[0035] See also Figure 2 、 Figure 4 and Figure 5Both ends of the sheath 1 are funnel-shaped. By forming the funnel-shaped ends of the sheath 1, the purpose of squeezing the first limit block 8 and the second limit block 10 can be achieved. The top of the right side surface of each first limit block 8 and the second limit block 10 is set as an inclined surface. The inclined surfaces set by the first limit block 8 and the second limit block 10 can compress the second limit block 10 and the first limit block 8 into the first telescopic groove 7 or the second telescopic groove 13 when the sheath 1 contacts. A spring 12 is installed inside each first telescopic groove 7 and the second telescopic groove 13. By setting the spring 12, the purpose of resetting the first limit block 8 and the second limit block 10 can be achieved.

[0036] See also Figure 1 、 Figure 2 and Figure 3 The cross-section of each first guide block 3 is set to a rectangle, and the inclined surface of each second guide block 4 is set to a trapezoid. Each first guide block 3 and the second guide block 4 are respectively slidably connected to the first guide groove 5 and the second guide groove 6 adjacent thereto. The sliding connection between the first guide block 3 and the second guide block 4 can prevent the connecting terminal 2 from rotating inside the sheath 1. At the same time, the trapezoidal and rectangular settings can achieve a fool-proof effect, ensuring the connection between the first limit block 8 and the second limit block 10 and the first limit groove 9 and the second limit groove 11.

[0037] In this embodiment, an anti-falling insulating intermediate terminal is provided. By introducing the mutual cooperation mechanism of the first guide block 3, the second guide block 4 and the corresponding first guide groove 5, the second guide groove 6, and the first limit block 8, the second limit block 10 and the first limit groove 9, the second limit groove 11, the device effectively locks the relative position between the insulating sheath 1 and the connecting terminal 2. Even under adverse conditions such as long-term thermal expansion and contraction, mechanical vibration and aging of the insulating sheath 1, the connection can be kept tight and stable, greatly reducing the risk of the insulating sheath 1 falling out, thereby significantly improving the safety and reliability of the electrical connection. The first guide block 3 and the second guide block 4 respectively adopt rectangular and trapezoidal cross-sections, and are slidably connected to the first guide groove 5 and the second guide groove 6 of corresponding shapes. This design not only avoids the rotation of the connecting terminal 2 inside the sheath 1, but also enhances the anti-foolproof effect through shape matching, ensures accuracy during installation, reduces the possibility of misoperation, and improves installation efficiency.

[0038] The working principle of the above embodiment is to place the connecting terminal 2 in front of the sheath 1, ensure that the first guide block 3 and the second guide block 4 are aligned with the entrance of the first guide groove 5 and the second guide groove 6, and gently push the connecting terminal 2 into the sheath 1. At this time, the first guide block 3 and the second guide block 4 will slide along the trajectory of the first guide groove 5 and the second guide groove 6. During the sliding process, the first limit block 8 and the second limit block 10 in the first telescopic groove 7 and the second telescopic groove 13 respectively equipped on the first guide block 3 and the second guide block 4 will be subjected to the gradually increasing squeezing of the inner wall of the sheath 1. As the connecting terminal 2 continues to be pushed in, when the first guide block 3 and the second guide block 4 When reaching the predetermined position, the first limit block 8 and the second limit block 10 are quickly reset and respectively snapped into the first limit groove 9 and the second limit groove 11 on the inner walls of the first guide groove 5 and the second guide groove 6 under the action of the elastic force of the spring 12 in their respective telescopic grooves. This process realizes the firm locking between the connecting terminal 2 and the sheath 1. Due to the close fit between the first limit block 8 and the second limit block 10 and the first limit groove 9 and the second limit groove 11, and the interference fit between the sheath 1 and the connecting terminal 2, the insulating intermediate terminal can resist the thermal expansion and contraction effects caused by temperature changes and maintain the stability of the connection.

[0039] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0040] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An anti-drop-off insulating intermediate terminal, comprising a sheath (1) and a connecting terminal (2), characterized in that: The connecting terminal (2) is located inside the sheath (1); the outer surface of the connecting terminal (2) is fixedly connected to two first guide blocks (3) and a second guide block (4); the inner wall of the sheath (1) is provided with a first guide groove (5) and a second guide groove (6); A first telescopic slot (7) is provided on the left ends of the two first guide blocks (3) facing away from each other, a first limiting block (8) is slidably inserted into the interior of each first telescopic slot (7), and a first limiting slot (9) is provided on the inner walls of the two first guide slots (5); A second telescopic slot (13) is provided on the right ends of the two second guide blocks (4) facing away from each other, a second limiting block (10) is slidably inserted into the interior of each second telescopic slot (13), and a second limiting slot (11) is provided on the inner walls of the two second guide slots (6).

2. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: The sheath (1) is slidably sleeved with the connecting terminal (2).

3. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: The sheath (1) is made of insulating material.

4. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: Both ends of the sheath (1) are funnel-shaped.

5. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: The top end of the right side of each of the first limiting block (8) and the second limiting block (10) is configured as an inclined surface.

6. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: A spring (12) is installed inside each of the first telescopic slot (7) and the second telescopic slot (13).

7. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: The cross section of each first guide block (3) is set as a rectangle, the inclined surface of each second guide block (4) is set as a trapezoid, and each first guide block (3) and second guide block (4) are respectively slidably connected to the first guide groove (5) and the second guide groove (6) adjacent thereto.

8. The anti-drop-off insulating intermediate terminal according to claim 1, characterized in that: The connecting terminal (2) and the sheath (1) are located on the same axis, and the connecting terminal (2) and the sheath (1) are interference fit.

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