Hardware terminal structure with high sealing performance

Abstract

The utility model discloses a hardware terminal structure with high sealing performance, which comprises a first shell, a second shell is arranged on one side of the first shell, a conductive block is fixedly mounted at a position close to the center in the first shell, a first fixing ring is fixedly connected to one side of the outer wall of the first shell, and a second fixing ring is fixedly connected to the other side of the outer wall of the first shell. A second fixing ring is fixedly connected to the position, close to the center, of the outer wall of the second shell. According to the hardware terminal structure with the high sealing performance, through the design of the first fixing ring, the second fixing ring, the movable ring, the sealing gasket, the spring, the limiting groove and the limiting rod, after the first shell and the second shell are tightly connected through thread screwing, the movable ring is automatically pulled to move towards the direction of the first fixing ring by utilizing the natural elastic force characteristic of the spring; and a limiting rod arranged on the movable ring is further promoted to be clamped into a limiting groove in the first fixed ring, so that the design realizes additional positioning and locking of the first shell and the second shell after the first shell and the second shell are screwed.

Description

TECHNICAL FIELD

[0001] The utility model relates to hardware terminal technical field, concretely is a hardware terminal structure of high sealing property. BACKGROUND

[0002] Hardware terminal is indispensable small -size metal part in electrical connection, they are mainly used for connecting between electric wire, to realize the stable transmission of electric current, hardware terminal usually is made of metal material with good conductivity, such as copper, copper alloy etc., and carries out plating layer treatment on its surface to enhance corrosion resistance and conductivity.

[0003] With the good sealing hardware terminal structure of publication number CN207559098U as an example, by setting up sealing connecting mechanism, make it possible through the rotation right shell left line pipe and right line pipe close, and make two line conduction, make the connecting part completely sealed, no gap exposure, avoid dust and other impurities into hardware terminal, make the device will not appear the situation of poor contact, compared with, adopt the method that the right shell of hardware terminal and left shell are combined by screw thread, although the butt joint function of electric wire is realized to a certain extent, but there is obvious limitation, in the absence of additional positioning structure, when facing vibration or external force impact, its connection tightness is easily affected. Because of lacking effective locking mechanism or anti-loose design, it may appear loose phenomenon, this loose not only will lead to the gap of connecting part, make dust, humidity and other impurities more easily invade the terminal interior, cause corrosion or short circuit problem, also can directly influence the stable transmission of electric signal, increase the risk of poor contact. SUMMARY

[0004] The utility model aims at providing a kind of hardware terminal structure of high sealing property, to solve the method that the right shell of hardware terminal and left shell are combined by screw thread in the above background art, although the butt joint function of electric wire is realized to a certain extent, but there is obvious limitation, in the absence of additional positioning structure, when facing vibration or external force impact, its connection tightness is easily affected. Because of lacking effective locking mechanism or anti-loose design, it may appear loose phenomenon, this loose not only will lead to the gap of connecting part, make dust, humidity and other impurities more easily invade the terminal interior, cause corrosion or short circuit problem, also can directly influence the stable transmission of electric signal, increase the risk of poor contact.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: A hardware terminal structure of high sealing performance, including first casing, the one side of first casing is provided with second casing, the fixed mounting of conductive block is in the first casing near the center position, the one side of first casing outer wall is fixedly connected with first fixed ring, the fixed connection of second fixed ring is carried out to the one side of second casing outer wall near the center position, the one end of first casing is fixedly installed with sealing pad, the top and bottom of first fixed ring one side are all provided with limit groove, the one side of second fixed ring is fixedly connected with four springs, the one side of second casing outer wall is equipped with movable ring corresponding four springs, the top and bottom of movable ring one side are all fixedly connected with limit rod, the one side of first casing and second casing inner wall is respectively embedded with first sealing ring and second sealing ring.

[0006] Compared with the prior art, the utility model has the advantages that:

[0007] The hardware terminal structure of high sealing performance, through the design of first fixed ring, second fixed ring, movable ring, sealing pad, spring, limit groove and limit rod, after first casing and second casing are closely connected through thread rotation, the natural elastic force characteristic of spring is used, the movable ring is automatically pulled to move to first fixed ring direction, and then the limit rod arranged on the movable ring is clamped into the limit groove on first fixed ring, so that the additional positioning and locking of first casing and second casing after rotation are realized, the problem of loose connection caused by vibration, impact or long-term use is avoided. Through this mechanism, not only the overall stability of the hardware terminal structure is enhanced, but also the sealing performance is further improved, the long-term reliable operation of electrical connection in harsh environment is ensured, so that the security risks such as poor contact, short circuit and equipment failure caused by loose connection are avoided, and at the same time, the sealing pad on first fixed ring is pressed tightly by second fixed ring in the process of rotation and fastening, so that the gap in rotation is avoided, and water is prevented from entering the inside, and the sealing performance is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 It is the utility model structure perspective view;

[0009] Figure 2 It is the utility model structure sectional view;

[0010] Figure 3 It is the utility model structure front view;

[0011] Figure 4 It is the utility model movable ring structure perspective view.

[0012] In the figure: 1, the first shell; 2, the second shell; 3, the conductive block; 4, the first fixed ring; 5, the second fixed ring; 6, the movable ring; 7, the sealing pad; 8, the spring; 9, the limiting groove; 10, the limiting rod; 11, the first sealing ring; 12, the second sealing ring; 13, the positioning bolt. DETAILED DESCRIPTION

[0013] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0014] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a hardware terminal structure of high sealing performance, including first shell 1, the side of first shell 1 is provided with second shell 2, the fixed mounting of conductive block 3 is in the center position in first shell 1, the side of the outer wall of first shell 1 is fixedly connected with first fixed ring 4, the fixed connection of second fixed ring 5 is in the center position of the outer wall of second shell 2, the fixed mounting of sealing pad 7 is in one end of first shell 1, the top and bottom of the side of first fixed ring 4 are all provided with limiting groove 9, the fixed connection of four springs 8 is in the side of second fixed ring 5, the side of the outer wall of second shell 2 is equipped with movable ring 6 corresponding four springs 8, the top and bottom of the side of movable ring 6 are all fixedly connected with limiting rod 10, the side of the inner wall of first shell 1 and second shell 2 is respectively embedded with first sealing ring 11 and second sealing ring 12.

[0015] The side of second shell 2 is penetrated to the inside of first shell 1, the side of the inner wall of first shell 1 is provided with thread groove, the side of the outer wall of second shell 2 is provided with thread tooth, first shell 1 and second shell 2 are screwed, fastening is realized by the screwing of thread groove and thread tooth, this design makes the connection between first shell 1 and second shell 2 more stable and reliable, simultaneously convenient to disassemble and install, improve the convenience of maintenance.

[0016] The inside of first shell 1 and second shell 2 is all provided with electric wire, the opposite end of two electric wires is respectively contacted with the two sides of conductive block 3, the opposite end of two electric wires is respectively penetrated to the outside of first shell 1 and second shell 2, the top of first shell 1 and second shell 2 is all screwed with positioning bolt 13, the lower end of two positioning bolts 13 is respectively penetrated to the inside of first shell 1 and second shell 2 and is respectively contacted with the outer wall of two electric wires, realize the transmission of electric signal or the conduction of electric current, positioning bolt 13 is used for fixing electric wire simultaneously.

[0017] The second fixed ring 5 contacts the side opposite to the sealing gasket 7, enhancing the sealing between the first shell 1 and the second shell 2.

[0018] One end of the four springs 8 is fixedly connected to one side of the movable ring 6, for connecting between the movable ring 6 and the second fixed ring 5.

[0019] One end of the limiting rod 10 penetrates the first fixed ring 4 and the inside of the limiting groove 9 in sequence and is clamped with the inner wall of the limiting groove 9. When the limiting rod 10 enters the limiting groove 9, the first shell 1 and the second shell 2 are locked and cannot be loosened due to vibration and other factors.

[0020] The inner walls of the first sealing ring 11 and the second sealing ring 12 respectively contact the outer walls of the two wires, sealing the wire entry port at one end of the first shell 1 and the second shell 2, and ensuring the safe operation of the electrical system.

[0021] Working principle: First, when wiring, two wires are respectively inserted from the outside of the first shell 1 and the second shell 2, and then the side of the second shell 2 is aligned with the opening of the first shell 1, and the second shell 2 is rotated so that the threaded teeth on the outer wall of the second shell 2 engage with the threaded grooves on the inner wall of the first shell 1. With the rotation, the ends of the two wires contact the two sides of the conductive block 3, which ensures that the current or electrical signal can be smoothly transmitted between the two wires through the conductive block 3. Subsequently, in order to fix the two wires and prevent them from loosening or falling off during work, the operator rotates the positioning bolt 13 at the top of the first shell 1 and the second shell 2 to fix the two wires. In this process, the second fixed ring 5 gradually approaches and compresses the sealing gasket 7 on the first fixed ring 4, ensuring the sealing between the two, and at the same time, due to the fixed connection of one end of the four springs 8 with the movable ring 6, and the movable ring 6 being sleeved on the outer wall of the second shell 2, the elastic force of the springs 8 will pull the movable ring 6 to move, and the limiting rod 10 on the movable ring 6 will move to the direction of the first fixed ring 4 under the action of the elastic force of the springs 8 and be clamped into the limiting groove 9. Once the limiting rod 10 is completely clamped into the limiting groove 9, the connection between the first shell 1 and the second shell 2 is additionally locked, effectively preventing loosening due to vibration, impact or long-term use. In addition, the first sealing ring 11 and the second sealing ring 12 are respectively embedded in the inner walls of the first shell 1 and the second shell 2 and tightly contact the outer walls of the wires, further enhancing the sealing of the terminal structure and ensuring the safe operation of the electrical connection in harsh environments.

[0022] In summary: the high sealing hardware terminal structure, through the design of the first fixed ring 4, the second fixed ring 5, the movable ring 6, the sealing gasket 7, the spring 8, the limiting groove 9 and the limiting rod 10, after the first shell 1 and the second shell 2 are tightly connected by thread rotation, the natural elastic characteristics of the spring 8 are utilized to automatically pull the movable ring 6 to move in the direction of the first fixed ring 4, and then the limiting rod 10 arranged on the movable ring 6 is clamped into the limiting groove 9 on the first fixed ring 4, which realizes the additional positioning and locking of the first shell 1 and the second shell 2 after rotation, effectively avoiding the problem of loose connection caused by vibration, impact or long-term use. Through this mechanism, not only the overall stability of the hardware terminal structure is enhanced, but also its sealing performance is further improved, ensuring the long-term reliable operation of electrical connection in harsh environments, thereby avoiding potential safety hazards such as poor contact, short circuit and even equipment failure caused by loose connection. At the same time, in the process of thread rotation and fastening, the second fixed ring 5 presses the sealing gasket 7 on the first fixed ring 4, avoiding the gap in the thread rotation to cause water ingress, and significantly enhancing the sealing performance.

[0023] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0024] 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 can be made to the 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. A hardware terminal structure having high sealing property, comprising a first housing (1), characterized in that: One side of the first shell (1) is provided with the second shell (2), the central position in the first shell (1) is fixedly installed with the conductive block (3), one side of the outer wall of the first shell (1) is fixedly connected with the first fixed ring (4), the central position of the outer wall of the second shell (2) is fixedly connected with the second fixed ring (5), one end of the first shell (1) is fixedly installed with the sealing gasket (7), the top and the bottom of one side of the first fixed ring (4) are both provided with the limiting groove (9), one side of the second fixed ring (5) is fixedly connected with the four springs (8), the outer wall of the second shell (2) is sleeved with the movable ring (6) on the side corresponding to the four springs (8), the top and the bottom of one side of the movable ring (6) are both fixedly connected with the limiting rod (10), the inner wall opposite sides of the first shell (1) and the second shell (2) are respectively embedded with the first sealing ring (11) and the second sealing ring (12).

2. The high sealing hardware terminal structure according to claim 1, wherein: One side of the second shell (2) penetrates to the inside of the first shell (1), one side of the inner wall of the first shell (1) is provided with the threaded groove, one side of the outer wall of the second shell (2) is provided with the threaded teeth, the first shell (1) and the second shell (2) are screwed.

3. The high sealing hardware terminal structure according to claim 1, wherein: The inside of the first shell (1) and the second shell (2) are both provided with the electric wire, the opposite ends of the two electric wires are respectively in contact with the two sides of the conductive block (3), the opposite ends of the two electric wires are respectively penetrated to the outside of the first shell (1) and the second shell (2), the top of the first shell (1) and the second shell (2) are both screwed with the positioning bolt (13), the lower ends of the two positioning bolts (13) are respectively penetrated to the inside of the first shell (1) and the second shell (2) and are respectively in contact with the outer wall of the two electric wires.

4. The high sealing hardware terminal structure according to claim 1, wherein: One side of the second fixed ring (5) opposite to the sealing gasket (7) is in contact.

5. The high sealing hardware terminal structure according to claim 1, wherein: One end of the four springs (8) is fixedly connected with one side of the movable ring (6).

6. The high sealing hardware terminal structure according to claim 1, wherein: One end of the limiting rod (10) is sequentially penetrated to the inside of the first fixed ring (4) and the limiting groove (9) and is clamped with the inner wall of the limiting groove (9).

7. The high sealing hardware terminal structure according to claim 1, wherein: The inner wall of the first sealing ring (11) and the second sealing ring (12) is respectively in contact with the outer wall of the two electric wires.

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