Wiring terminal with anti-oxidation function

Abstract

The invention relates to the technical field of terminals, and discloses a wiring terminal with an anti-oxidation function, which comprises an end tube and a wire hole formed in the center of the end tube, the arc-shaped flitch plates are uniformly clamped on the inner wall of a wire hole of the end tube, the inner side surface of each arc-shaped flitch plate is designed into a stepped binding surface, micro electrostrictive ceramics are uniformly distributed on the surface of the stepped binding surface, the diameter of the stepped binding surface is gradually reduced along the wire inlet direction of the end tube, and the edge of the stepped binding surface is designed into an arc chamfer; the elastic buffer pad is arranged between the wire hole of the end pipe and the arc-shaped flitch plate, and the elastic buffer pad is tightly attached to the inner circumferential surface of the wire hole of the end pipe and the outer circumferential surface of the arc-shaped flitch plate; according to the wiring terminal, high-frequency micro-vibration can be generated through electrification of the micro-electrostrictive ceramic to break an oxide layer, the stability of contact resistance is maintained, local overheating burning is avoided, the stepped binding surface guides a wire to be centered, uniform contact is ensured, and the arc chamfer prevents the wire from being scratched.

Description

Technical Field

[0001] This invention relates to the field of terminal technology, specifically to a terminal block with anti-oxidation function. Background Technology

[0002] In electrical circuit connections, terminals are key components for achieving stable connections between wires and electrical components, and between wires themselves. They are widely used in many scenarios such as industrial control, power equipment, and home appliances. Their contact stability directly affects the operational safety and reliability of the entire circuit system. The oxidation of the contact surface and the contact precision of the wires are the core factors that determine the service life and operational performance of the terminals.

[0003] Existing terminal blocks mostly maintain conductive contact through mechanical clamping force on the contact surface, relying on the corrosion resistance of the contact surface material to slow down oxidation. This method is insufficient to cope with the continuous accumulation of oxide layers on the contact surface over long-term use. The thickening of the oxide layer leads to increased fluctuations in contact resistance, which can easily cause localized overheating and, in severe cases, terminal burnout. Furthermore, the wire contact surfaces of existing terminal blocks often use a flat or simple curved surface structure of equal diameter. Assistive positioning is required during wire insertion to ensure contact, which is not only cumbersome but also prone to incomplete contact and uneven force distribution. Moreover, the edges of the contact surface are often right-angled, making the wire susceptible to scratches during insertion, affecting wire performance and connection stability. Therefore, a terminal block with anti-oxidation function is proposed. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a terminal block with anti-oxidation function to solve the aforementioned technical problems of localized overheating and easy scratching of wires by sharp edges during wire insertion.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a terminal block with anti-oxidation function, comprising:

[0006] An end tube and a connecting plate disposed on the end tube, wherein a wire hole is provided in the center of the end tube and a through hole is provided on the surface of the connecting plate; An arc-shaped plate is evenly fitted onto the inner wall of the wire hole of the end tube. The inner side of the arc-shaped plate has a stepped bonding surface design, and micro-electrostrictive ceramics are evenly distributed on the surface of the stepped bonding surface. The micro-electrostrictive ceramics are integrated into an array with the surface of the stepped bonding surface. The diameter of the stepped bonding surface decreases step by step along the wire inlet direction of the end tube, and the edge of the stepped bonding surface has a rounded chamfer design. An elastic buffer pad is placed between the wire hole of the end tube and the arc-shaped plate, and the elastic buffer pad is tightly fitted to the inner circumferential surface of the wire hole of the end tube and the outer circumferential surface of the arc-shaped plate.

[0007] Insert the copper wire into the wire hole along the wire inlet direction of the end tube. Under the guidance of the stepped bonding surface, the wire automatically centers and gradually goes deeper. The diameter structure of the stepped bonding surface decreases step by step along the wire inlet direction, so that the outer surface of the wire and the stepped bonding surface of the arc-shaped plate can fit together. The rounded chamfer design avoids scratching the surface of the wire. After the conductor is inserted into place, the stepped surfaces of each step form an axial limiting structure. The axial contact between the stepped surfaces and the outer surface of the conductor limits the conductor and reduces the axial displacement of the conductor caused by external vibration. When the terminal block is energized, the micro-electrostrictive ceramic integrated on the stepped bonding surface is energized synchronously. The array of micro-electrostrictive ceramic generates high-frequency micro-vibration. This vibration is transmitted to the contact surface with the wire through the stepped bonding surface, breaking the oxide layer formed on the contact surface in real time and maintaining a stable contact state between the wire and the terminal block. During this process, the elastic buffer pad placed between the end tube wire hole and the arc-shaped plate absorbs the impact force generated by the vibration of the micro-electrostrictive ceramic and avoids rigid collision between the arc-shaped plate and the inner wall of the end tube. When localized damage to the micro-electrostrictive ceramic is detected, the corresponding arc-shaped plate can be directly removed. Since the arc-shaped plate is fixed to the end tube by a snap-fit ​​structure, it can be disassembled individually without disassembling the entire end tube. After replacing the new arc-shaped plate, fix it to the end tube using the slot, ensuring that the elastic buffer pad is tightly fitted to the inner circumference of the end tube wire hole and the outer circumference of the arc-shaped plate. After maintenance, the anti-oxidation function can be restored.

[0008] Preferably, the connecting plate has a threaded hole on its surface, and the inner circumferential surface of the threaded hole has an internal thread. The threaded hole and the internal thread provide the basic installation conditions for subsequent adaptation of the threaded connection structure, ensuring that the corresponding components can be stably assembled on the connecting plate through threaded engagement, thus guaranteeing the reliability of the connection.

[0009] Preferably, the inner cavity of the threaded hole is provided with an annular screw plate, and an external thread is formed on the outer circumferential surface of the annular screw plate, and the annular screw plate and the threaded hole are threadedly connected. The threaded connection between the annular screw plate and the threaded hole facilitates the quick disassembly and replacement of the annular screw plate, while the threaded engagement ensures the stability of the connection and prevents relative displacement.

[0010] Preferably, the annular screw plate has a circular design, and the through hole is located at the center of the annular screw plate. The circular design of the annular screw plate can precisely match the inner shape of the threaded hole, ensuring coaxiality after assembly; the through hole at the center ensures that the component passing through the through hole remains centered, avoiding displacement and improving the stability of component operation; by replacing the annular screw plate with through holes of different diameters, it can adapt to the needs of different application scenarios, improving the versatility of the device.

[0011] Preferably, the upper side of the arc-shaped panel is equipped with side locking springs, and the lower surface of the arc-shaped panel is equipped with an inner locking ball. The side locking springs and the inner locking ball provide two independent elastic locking structures for the arc-shaped panel, which can cooperate with the corresponding slots to achieve multiple positioning, improve the firmness of the arc-shaped panel after assembly, and facilitate assembly and disassembly operations.

[0012] Preferably, the top edge of the wire hole of the end tube is provided with side slots evenly distributed, and the side slots are engaged with the side retaining springs. The evenly distributed side slots ensure that the side retaining springs are subjected to balanced force, and the engaging connection method enables rapid positioning and assembly of the arc-shaped plate and the upper part of the end tube, while limiting the radial displacement of the arc-shaped plate and preventing offset after assembly.

[0013] Preferably, the lower part of the inner circumferential surface of the wire hole of the end tube is uniformly provided with inner locking grooves, and the inner locking grooves are locked together with the inner locking springs. The locking cooperation between the inner locking grooves and the inner locking springs, together with the connection between the upper side locking springs and the side locking grooves, forms a double positioning structure, which significantly improves the connection between the arc-shaped patch and the end tube and effectively prevents the arc-shaped patch from shaking or falling off during use.

[0014] Preferably, the curved panel has a guide groove on its side, and the inner cross-section of the guide groove is semi-circular. The semi-circular cross-section of the guide groove can reduce the friction when the mating parts slide, avoiding jamming; at the same time, the regular semi-circular structure can provide a precise guide trajectory for the mating of adjacent curved panels, ensuring the smoothness of the splicing process.

[0015] Preferably, the curved panel has a guide side installed on its side, and the guide side is positioned opposite to the guide groove. The guide side is generally semi-circular. The semi-circular guide side, which is opposite to the guide groove, provides a fitting structure for splicing adjacent curved panels. The semi-circular design ensures a good fit with the guide groove and improves the smoothness of sliding contact, avoiding sharp corner jamming.

[0016] Preferably, the guide side and the guide side groove have corresponding shapes, and the guide side and the guide side groove of adjacent guide sides slide together. The shape correspondence between the guide side and the guide side groove ensures the sealing and fitting accuracy after the adjacent arc-shaped panels are spliced; the sliding fitting method facilitates the adjustment of the relative position of each arc-shaped panel, adapts to the assembly requirements of different sizes, and ensures structural stability after splicing, making it less prone to misalignment.

[0017] Compared with the prior art, the present invention provides a terminal block with anti-oxidation function, which has the following beneficial effects: This terminal block with anti-oxidation function integrates micro-electrostrictive ceramic and stepped bonding surface into an array. When energized, it generates high-frequency micro-vibration, which can break the oxide layer in real time, maintain stable contact resistance, and avoid the problem of local overheating and burnout caused by the accumulation of oxide layer on the contact surface. The stepped bonding surface has a gradually decreasing diameter along the wire feeding direction, which can guide the copper wire to automatically center itself and ensure that the wire and the micro-electrostrictive ceramic make full and uniform contact. The rounded chamfer can prevent the wire from being scratched when it enters the wire. The elastic buffer pad can absorb the impact force when the micro-electrostrictive ceramic vibrates, preventing the ceramic module on the arc plate from rigidly colliding and breaking with the inner wall of the end tube, while not affecting the transmission of high-frequency micro-vibration and adapting to the core function of anti-oxidation. The arc-shaped plates are evenly clamped onto the inner wall of the end tube, enabling the individual disassembly and replacement of the arc-shaped plates that integrate micro-electrostrictive ceramics. This solves the problem of needing to replace the entire integrated ceramic array if there is local damage, thus reducing maintenance costs. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall left rear structure of the present invention; Figure 3 This is a schematic diagram of the separation structure of the connecting plate and the annular screw plate of the present invention; Figure 4 This is a schematic cross-sectional view of the end tube portion of the present invention; Figure 5 This is a schematic diagram of the arc-shaped patch and its connection structure of the present invention; Figure 6 This is a schematic diagram of the arc-shaped plate separation structure of the present invention.

[0019] In the diagram: 1. End tube; 2. Connecting plate; 3. Threaded hole; 4. Annular screw plate; 5. Through hole; 6. Side groove; 7. Inner groove; 8. Arc-shaped plate; 9. Stepped bonding surface; 10. Micro-electrostrictive ceramic; 11. Guide side groove; 12. Guide side edge; 13. Elastic buffer pad; 14. Inner retaining ball; 15. Side retaining spring post. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] This invention provides a technical solution: a terminal block with anti-oxidation function, comprising: (see details) Figures 1-6The end tube 1 and the connecting plate 2 disposed on the end tube 1, wherein the end tube 1 has a wire hole in the center and a through hole 5 is provided on the surface of the connecting plate 2. The arc-shaped plate 8 is evenly clamped on the inner wall of the wire hole of the end tube 1, and the inner side of the arc-shaped plate 8 is designed as a stepped bonding surface 9. Micro-electrostrictive ceramics 10 are evenly distributed on the surface of the stepped bonding surface 9, and the micro-electrostrictive ceramics 10 are integrated into the surface of the stepped bonding surface 9. The diameter of the stepped bonding surface 9 decreases step by step along the wire inlet direction of the end tube 1, and the edge of the stepped bonding surface 9 is designed as a rounded chamfer. An elastic buffer pad 13 is disposed between the wire hole of the end tube 1 and the arc-shaped plate 8, and the elastic buffer pad 13 is tightly fitted with the inner circumferential surface of the wire hole of the end tube 1 and the outer circumferential surface of the arc-shaped plate 8.

[0022] By integrating a micro-electrostrictive ceramic array 10 on the stepped bonding surface 9 of the arc-shaped plate 8, a dynamic self-cleaning mechanism is formed by high-frequency micro-vibration generated after energization. This mechanism can break the oxide layer formed between the wire and the contact surface in real time, inhibiting the accumulation of oxide layer from the source. This solves the problem of the contact resistance of traditional terminals increasing sharply due to oxide layer accumulation after multiple current cycles, maintaining the contact resistance at a low level, avoiding local overheating and burnout, and ensuring the safety and reliability of the terminals in long-term use. The array formed by the micro-electrostrictive ceramic 10 is optimized into a modular structure of multi-segment arc-shaped plates 8, which are fixed to the end tube 1 by a slot-embedded snap-fit ​​method, replacing the traditional integrated design. When the micro-electrostrictive ceramic 10 on a local arc-shaped plate 8 is damaged, the corresponding module can be disassembled and replaced separately without replacing the entire end tube 1 or ceramic array, which greatly reduces maintenance costs and resource waste. At the same time, the snap-fit ​​structure is easy to assemble and can quickly complete module replacement, improving the maintenance efficiency of the terminal block. The elastic buffer pad 13 set between the end tube 1 and the arc-shaped plate 8 can effectively absorb the impact force generated by the high-frequency vibration of the micro-electrostrictive ceramic 10, avoid the ceramic from being broken due to rigid collision between the arc-shaped plate 8 and the inner wall of the end tube 1, and significantly improve the structural stability and service life of the micro-electrostrictive ceramic 10 and the arc-shaped plate 8; and the tight fit design of the elastic buffer pad 13 does not affect the vibration transmission, ensures the normal realization of the dynamic self-cleaning function, and is fully compatible with the core anti-oxidation function. The stepped bonding surface 9, with its diameter decreasing progressively along the wire insertion direction, guides the wire to automatically center its insertion, ensuring full and uniform contact between the outer surface of the wire and the micro-electrostrictive ceramic array 10. This avoids poor local contact caused by wire misalignment and further ensures stable contact resistance. The rounded chamfered edges prevent scratches on the wire during insertion, protecting the integrity of the wire structure. Simultaneously, the elastic buffer pad 13 provides elastic support to the arc-shaped plate 8, ensuring that the stepped bonding surface 9 of the arc-shaped plate 8 always elastically presses against the outer surface of the wire, creating an elastic clamping and limiting effect. This reduces the impact of external vibrations on the wire position, improves the stability of the anti-oxidation effect, and enhances wiring convenience.

[0023] Please see Figure 2 and Figure 3 The connecting plate 2 has a threaded hole 3 on its surface, and the inner circumferential surface of the threaded hole 3 has an internal thread. The threaded hole 3 is machined at a predetermined position on the connecting plate 2. After the threaded hole 3 is formed, the internal thread is machined on its inner circumferential surface to enable the threaded hole 3 to have the ability to be threaded connected.

[0024] The inner cavity of the threaded hole 3 is provided with an annular screw plate 4, and an external thread is formed on the outer circumferential surface of the annular screw plate 4. The annular screw plate 4 and the threaded hole 3 are threadedly connected. The annular screw plate 4 with the external thread on its outer circumferential surface is aligned with the inner cavity of the threaded hole 3. By rotating the annular screw plate 4, the external thread of the annular screw plate 4 and the internal thread of the threaded hole 3 are engaged with each other, thus completing the threaded connection assembly of the two.

[0025] The annular screw plate 4 has a circular design, and the through hole 5 is located at the center of the annular screw plate 4. The annular screw plate 4 is designed as a circular structure, and the through hole 5 is precisely machined at the center of the annular screw plate 4, so that the through hole 5 and the annular screw plate 4 are coaxial. Depending on the usage requirements, the annular screw plate 4 can be loosened and removed, and then replaced with an annular screw plate 4 with a through hole 5 of a different diameter and tightened again.

[0026] Please see Figure 5 and Figure 6 Side-clamping springs 15 are installed on the upper sides of the curved plate 8, and inner-clamping springs 14 are added to the lower part of the surface of the curved plate 8. The side-clamping springs 15 are installed on the upper sides of the curved plate 8 to ensure that the side-clamping springs 15 are firmly installed and have elastic extension and retraction capabilities; at the same time, inner-clamping springs 14 are added to the lower part of the surface of the curved plate 8 to make the inner-clamping springs 14 stably connected to the curved plate 8 and elastically reset.

[0027] Please see Figure 4Side slots 6 are evenly provided on the top edge of the wire hole of the end tube 1, and the side slots 6 are engaged with the side spring posts 15. Side slots 6 are evenly machined along the circumference at the top edge of the wire hole of the end tube 1. When assembling the arc-shaped plate 8, the side spring posts 15 on the upper part of the arc-shaped plate 8 are aligned with the side slots 6, and the side spring posts 15 are elastically engaged into the side slots 6 by pressing, thus completing the engagement connection.

[0028] The lower part of the inner circumferential surface of the wire hole of the end tube 1 is provided with an inner retaining groove 7, and the inner retaining groove 7 is engaged with the inner retaining ball 14. The inner retaining groove 7 is uniformly machined and opened in the circumferential direction on the lower part of the inner circumferential surface of the wire hole of the end tube 1. When assembling the arc-shaped plate 8, the inner retaining ball 14 at the lower part of the arc-shaped plate 8 is aligned with the inner retaining groove 7 at the same time, and the elastic action of the inner retaining ball 14 is used to engage with the inner retaining groove 7 to realize the engagement connection between the two.

[0029] The curved plate 8 has a guide groove 11 on its side, and the inner cross-section of the guide groove 11 is semi-circular. The guide groove 11 is machined on one side of the curved plate 8. During the machining process, the inner cross-section of the guide groove 11 is controlled to be semi-circular to ensure that the groove outline is regular.

[0030] A guide side 12 is installed on the side of the arc-shaped plate 8, and the guide side 12 is opposite in position to the guide side groove 11. The guide side 12 is designed as a semi-circular shape. The guide side 12 is installed on the other side of the arc-shaped plate 8 opposite to the guide side groove 11, and the connection is ensured to be firm. The guide side 12 is designed as a semi-circular structure so that its outline matches the guide side groove 11.

[0031] The guide side 12 corresponds to the shape of the guide side groove 11, and the guide side 12 of adjacent guide sides 12 slides and fits with the guide side groove 11. When splicing multiple arc-shaped panels 8, the guide side 12 of one arc-shaped panel 8 is aligned with the guide side groove 11 of the adjacent arc-shaped panel 8. Taking advantage of the corresponding shape of the two, the guide side 12 is embedded in the guide side groove 11 and can slide along the groove, realizing the sliding and fitting splicing of adjacent arc-shaped panels 8.

[0032] This scheme: A threaded hole 3 is machined at a preset position on the connecting plate 2. After the threaded hole 3 is formed, an internal thread is machined on its inner circumferential surface. The annular screw plate 4 with an external thread on its outer circumferential surface is aligned with the inner cavity of the threaded hole 3. By rotating the annular screw plate 4, the external thread of the annular screw plate 4 and the internal thread of the threaded hole 3 are engaged with each other, thus completing the threaded connection assembly of the two. The through hole 5 is fixed at the corresponding position of the connecting plate 2 along with the annular screw plate 4. Side clips 15 are installed on the upper side of the arc-shaped plate 8, and an inner clip ball 14 is added to the lower part of the surface of the arc-shaped plate 8. At the same time, a guide groove 11 is machined on one side of the arc-shaped plate 8, and a semi-circular guide side 12 is installed on the other side. Multiple arc-shaped plates 8 are spliced ​​together, and the guide side 12 of one arc-shaped plate 8 is aligned with the guide groove 11 of the adjacent arc-shaped plate 8, so that the guide side 12 is embedded in the guide groove 11 and adjusted to a fitting state. The elastic buffer pad 13 is laid on the inner circumferential surface of the wire hole of the end tube 1, and then the assembled arc-shaped patch 8 is aligned with the wire hole of the end tube 1 and inserted; the side clip spring 15 on the upper part of the arc-shaped patch 8 is aligned with the side clip groove 6 on the top edge of the wire hole of the end tube 1, and pressed to make the side clip spring 15 elastically snap into the side clip groove 6. At the same time, the inner clip spring ball 14 at the lower part of the arc-shaped patch 8 is aligned with the inner clip groove 7 at the lower part of the inner circumferential surface of the wire hole of the end tube 1, and snapped into the inner clip groove 7 by elastic action, so as to ensure that the elastic buffer pad 13 is tightly attached to the inner circumferential surface of the wire hole of the end tube 1 and the outer circumferential surface of the arc-shaped patch 8. The copper wire is inserted into the wire hole along the inlet direction of the end tube 1. Under the guidance of the stepped bonding surface 9 of the arc-shaped plate 8, the wire automatically centers and gradually penetrates, forming a full fit with the stepped bonding surface 9. After the wire is inserted into place, the end step surface of the stepped bonding surface 9 forms an axial limit. At the same time, the elastic buffer pad 13 forms an elastic clamp on the wire through the arc-shaped plate 8. Under the dual action, the wire is stably limited. When the terminal block is energized, the microelectrostrictive ceramic 10 integrated on the stepped bonding surface 9 is energized synchronously. The array of microelectrostrictive ceramics 10 generates high-frequency micro-vibration, which is transmitted to the contact surface with the wire through the stepped bonding surface 9, breaking the oxide layer formed on the contact surface in real time. During the vibration of the micro-electrostrictive ceramic 10, the elastic buffer pad 13 between the wire hole of the end tube 1 and the arc-shaped plate 8 absorbs the impact force generated by the vibration, and avoids the arc-shaped plate 8 from rigidly colliding with the inner wall of the end tube 1. When local micro-electrostrictive ceramic 10 is detected to be damaged, press the side locking spring post 15 and the inner locking spring ball 14 on the corresponding arc-shaped plate 8 to make them disengage from the side locking groove 6 and the inner locking groove 7 respectively, and directly remove the arc-shaped plate 8. After replacing the new curved plate 8, repeat the splicing and snapping steps to fix the new curved plate 8 by snapping it into the side slot 6 through the side snapping spring post 15 and the inner snapping ball 14 and the inner slot 7, ensuring that the elastic buffer pad 13 fits tightly, and restore the anti-oxidation function after maintenance. When it is necessary to adapt to different usage scenarios, loosen the annular screw plate 4 and take it out, replace it with an annular screw plate 4 with a through hole 5 of the corresponding diameter, and then reconnect and fix the annular screw plate 4 to the threaded hole 3.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal block with anti-oxidation function, characterized in that, include: The end tube (1) and the connecting plate (2) provided on the end tube (1) are provided with a wire hole in the center of the end tube (1) and a through hole (5) is provided on the surface of the connecting plate (2). The arc-shaped plate (8) is uniformly clamped on the inner wall of the wire hole of the end tube (1), and the inner side of the arc-shaped plate (8) is designed as a stepped bonding surface (9), and micro-electrostrictive ceramics (10) are uniformly distributed on the surface of the stepped bonding surface (9), and the micro-electrostrictive ceramics (10) and the surface of the stepped bonding surface (9) are integrated into an array. The diameter of the stepped bonding surface (9) decreases step by step along the wire inlet direction of the end tube (1), and the edge of the stepped bonding surface (9) is designed as a rounded chamfer. An elastic buffer pad (13) is disposed between the wire hole of the end tube (1) and the arc-shaped plate (8), and the elastic buffer pad (13) is tightly fitted with the inner circumferential surface of the wire hole of the end tube (1) and the outer circumferential surface of the arc-shaped plate (8).

2. A terminal block with anti-oxidation function according to claim 1, characterized in that: The connecting plate (2) has a threaded hole (3) on its surface, and the inner circumferential surface of the threaded hole (3) has an internal thread.

3. A terminal block with anti-oxidation function according to claim 2, characterized in that: The inner cavity of the threaded hole (3) is provided with an annular screw plate (4), and an external thread is provided on the outer circumferential surface of the annular screw plate (4), and the annular screw plate (4) and the threaded hole (3) are threadedly connected.

4. A terminal block with anti-oxidation function according to claim 3, characterized in that: The annular screw plate (4) is circular in design, and the through hole (5) is located at the center of the annular screw plate (4).

5. A terminal block with anti-oxidation function according to claim 1, characterized in that: The upper side of the arc-shaped plate (8) is equipped with side clip springs (15), and the lower part of the surface of the arc-shaped plate (8) is equipped with inner clip springs (14).

6. A terminal block with anti-oxidation function according to claim 5, characterized in that: The top edge of the wire hole of the end tube (1) is uniformly provided with side slots (6), and the side slots (6) are connected to the side springs (15).

7. A terminal block with anti-oxidation function according to claim 5, characterized in that: The lower part of the inner circumferential surface of the wire hole of the end tube (1) is uniformly provided with an inner slot (7), and the inner slot (7) is connected to the inner slot ball (14).

8. A terminal block with anti-oxidation function according to claim 1, characterized in that: The arc-shaped plate (8) has a guide groove (11) on its side, and the inner cross-section of the guide groove (11) is semi-circular.

9. A terminal block with anti-oxidation function according to claim 8, characterized in that: The arc-shaped plate (8) has a guide side (12) installed on its side, and the guide side (12) is opposite to the guide side groove (11). The guide side (12) is a semi-circular design.

10. A terminal block with anti-oxidation function according to claim 9, characterized in that: The guide side (12) corresponds to the shape of the guide side groove (11), and the guide side (12) of the adjacent guide side (12) slides and fits with the guide side groove (11).

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