High voltage plug-in conductive post

Abstract

This utility model discloses a high-voltage pluggable conductive post, including a main sleeve, a male post head, a female post head, and a male sleeve. The male and female post heads are slidably sleeved on the inner sides of the male and main sleeves, respectively. A nut is fitted onto the outside of the female post head and connected to a second spring. One end of the female post head has a sleeve groove and teeth, and a sliding pin is fixed on its outer surface. The surface of the main sleeve has an arc guide groove and a locking groove. The male post head has locking teeth, and its inner side has a sliding pin head and a first spring. The sliding pin head cooperates with the rotating guide groove. During the insertion process, the sliding pin slides in the guide groove to guide the male and female post heads to rotate and engage. After the sliding pin enters the locking groove, it cooperates with the spring to maintain a locked state. The structure is stable and the operation is convenient. This conductive post has a reasonable structural design and has automatic alignment, reliable locking, and anti-disengagement functions, making it suitable for pluggable connection scenarios in high-voltage electrical equipment.

Description

Technical Field

[0001] This utility model relates to the field of conductive post technology, specifically a high-voltage pluggable conductive post. Background Technology

[0002] High-voltage pluggable conductive posts are widely used in detachable connection structures of power equipment, especially suitable for high-power connection scenarios that require frequent disconnection or maintenance, such as high-voltage switchgear, electrical control units, and transformers. Their main function is to ensure reliable conduction of high-voltage current between different components and to perform disconnection operations through mechanical plugging when necessary, facilitating equipment maintenance, replacement, or safe isolation.

[0003] In existing technologies, common high-voltage pluggable conductive posts generally adopt a structure where the male and female posts are directly plugged in, and mechanical positioning and locking are mainly achieved through elastic springs or snap-fit ​​structures. For example, in a typical structure, the female post has an axial hole, and the male post is inserted and locked in place by an outer retaining ring, achieving basic mechanical connection and conductivity. However, when this type of structure is used for a long time in a high-voltage environment, it often has the following defects and shortcomings:

[0004] Poor locking reliability: Traditional snap ring locking relies on single-point elastic clamping, which cannot effectively withstand mechanical vibration or thermal expansion and contraction during high-voltage operation. It is prone to loosening, falling off and other hidden dangers, affecting the stability and safety of electrical connections.

[0005] Simple anti-detachment and retention structure: Most existing conductive posts lack an effective locking and retention mechanism. When external force or impact is applied to the connection part, the snap-fit ​​structure may loosen, and in severe cases, it may even cause arc breakdown or equipment damage.

[0006] Limited service life: Due to the lack of structural buffer and guidance during insertion and removal, the friction during insertion and removal is concentrated on the metal contact surface, which can easily cause local wear or structural fatigue, reducing service life and maintenance efficiency.

[0007] In summary, while existing high-voltage pluggable conductive posts basically meet the connection function, they still have significant shortcomings in terms of reliability, convenience, and safety locking during plugging and unplugging operations. There is an urgent need for a new conductive post structure that comprehensively improves structural guidance, rotational engagement, and locking retention to enhance overall safety and ease of maintenance. Utility Model Content

[0008] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0009] Therefore, the technical solution adopted by this utility model is as follows: a high-voltage pluggable conductive post, comprising: a main sleeve, a male post head, a female post head, and a male sleeve. The male post head and the female post head are slidably sleeved on the inner sides of the male sleeve and the main sleeve, respectively. The female post head has a nut on its exterior and a second spring in a stretched state connected thereto. One end of the spring is connected to the main sleeve, and the other end is slidably connected to the nut. One end of the female post head has a sleeve hole groove with internal teeth, and a sliding pin is installed on its surface. The main sleeve has an arc guide groove and a locking groove on its surface to guide the movement of the sliding pin. The surface of the male post head has locking teeth that engage with the teeth, and a sliding pin head is sleeved on its inner side. One end of the sliding pin head is connected to a first spring fixed inside the male sleeve, and the other end has a protruding pin that engages with the guide groove.

[0010] This structure improves the stability and operability of high-voltage conductive connection structures through a combination of rotary engagement and axial locking, ensuring reliable connections during long-term operation.

[0011] In a preferred embodiment, the main bushing and the male bushing are further configured such that: the main bushing and the male bushing are made of insulating material to ensure the electrical safety of the overall system; the surfaces of the male and female bushings are electrically connected to electrode wires to realize the high-voltage conduction function.

[0012] Specifically, this configuration can effectively prevent arcing caused by poor contact or material breakdown during insertion and removal, thereby improving the insulation performance of the system.

[0013] In a preferred example, the male and female prongs are further configured such that, when they are mated, the locking teeth of the male prongs are inserted into the sleeve groove of the female prongs, and locking is achieved by rotating and engaging with the teeth.

[0014] Specifically, the mechanical engagement of the locking teeth and the meshing teeth ensures that the connecting parts maintain stable contact even under stress or vibration.

[0015] In a preferred example, the locking teeth and the meshing teeth are both arc-shaped convex tooth structures, and the sliding pin head and the meshing teeth are divided into multiple groups. Each group of structures is arranged in a straight line along the axial direction, and the groups are arranged circumferentially. The central arc angle of the gap between adjacent structures is equal to the central arc angle of the meshing teeth.

[0016] Specifically, this spatial arrangement enables multi-point contact and uniform force distribution, improving meshing accuracy and resistance to disengagement.

[0017] In a preferred example, both the rotary guide groove and the arc guide groove are spiral arc-shaped, and their spiral angles are equal to the arc center angle of the locking tooth gap. During the insertion and extraction process, the relative rotational engagement of the male and female prongs is achieved by the rotary guide.

[0018] Specifically, the structure utilizes insertion force to automatically achieve rotational alignment, reducing manual adjustment steps and improving assembly efficiency and reliability.

[0019] In a preferred embodiment, the end of the arc guide groove is connected to an axially extending locking groove, and the sliding pin enters the locking groove and is locked during the insertion process, thereby maintaining the tension of the second spring by means of friction, thereby maintaining the axial position between the female column head and the main sleeve.

[0020] Specifically, the locking groove and sliding pin together form an anti-loosening mechanism, which effectively prevents the main pin from loosening due to external force, improving the locking durability and system safety.

[0021] In a preferred example, the nut is further configured such that it is threaded onto the surface of the female post head, and one end of the second spring is rotatably connected to the nut, so that the spring direction can be automatically adjusted as the female post head rotates to avoid stress concentration.

[0022] Specifically, this structure improves the elastic adaptability of the mother column head during rotational engagement, extends spring life, and maintains stable locking tension.

[0023] In summary, this invention solves many problems in the connection operation of high-voltage conductive posts in the prior art through the coordinated operation of multiple structural components, especially in the innovative design of the insertion guide, locking structure, and retaining mechanism. This structure is suitable for detachable connection scenarios in high-voltage electrical equipment and has significant application value.

[0024] The beneficial effects achieved by this utility model are as follows:

[0025] 1. In this utility model, the male and female prongs are connected by a spiral guide groove and an arc guide groove, which realizes automatic alignment and rotational meshing connection of the structure during insertion and removal. It can achieve fast and stable mechanical locking under high pressure environment, effectively improving the reliability and ease of operation of the pluggable connector.

[0026] 2. In this utility model, the structural design of the sliding pin and the locking groove, combined with the stretching and positioning effect of the second spring, realizes the automatic maintenance and anti-disengagement function of the locking state, avoids the connection from loosening due to vibration or misoperation, and further improves the safety and service life of the conductive column in practical applications. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0028] Figure 2 This is an exploded structural diagram of the male sleeve and male prosthesis of one embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the main sleeve and the female column head according to an embodiment of the present invention;

[0030] Figure 4This is a schematic diagram of the male and female spur heads according to an embodiment of the present invention.

[0031] Figure label:

[0032] 100. Main sleeve; 110. Arc guide groove; 111. Locking groove;

[0033] 200, Male pin head; 210, Sliding pin head; 220, First spring; 201, Locking tooth; 202, Rotary guide groove;

[0034] 300, female post head; 310, nut; 320, second spring; 330, sliding pin; 301, sleeve groove; 302, meshing tooth;

[0035] 400, male sleeve. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0037] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0038] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing a high-voltage pluggable conductive post.

[0039] Combination Figures 1-4 As shown, this utility model provides a high-voltage pluggable conductive post, including a main sleeve 100, a male head 200, a female head 300, and a male sleeve 400. The male head 200 and the female head 300 are slidably sleeved on the inner sides of the male sleeve 400 and the main sleeve 100, respectively. The main sleeve 100 and the male sleeve 400 are preferably made of insulating material to ensure the electrical safety of the conductive post under high-voltage conditions.

[0040] A nut 310 is fitted onto the outer surface of the female prosthesis head 300, and a second spring 320 is fixedly installed on the nut 310 by means of threads. The second spring 320 is in a stretched state, with one end fixedly connected to the inner wall of the main sleeve 100 and the other end slidably connected to the outer surface of the nut 310, so that the female prosthesis head 300 can move relative to each other during insertion and removal but is controlled by the spring tension to achieve a stable fit.

[0041] One end of the female prosthesis head 300 has a sleeve groove 301, and the inner side of the sleeve groove 301 has several teeth 302 for mechanically engaging with the locking teeth 201 on the male prosthesis head 200, thereby completing the locking connection between the male prosthesis head 200 and the female prosthesis head 300. A sliding pin 330 is also fixedly provided on the outer surface of the female prosthesis head 300. The sliding pin 330 can slide in the arc guide groove 110 opened on the surface of the main sleeve 100 and eventually enter the axial locking groove 111 communicating with it. The locking groove 111 is used to retain the sliding pin 330 to prevent the connected conductive post from loosening due to vibration or external force during operation.

[0042] The outer surface of the male post 200 is provided with locking teeth 201, and the tooth surface shape of the locking teeth 201 matches the meshing teeth 302, preferably with an arc-shaped convex tooth structure. During the insertion process, under the action of axial insertion force, the locking teeth 201 of the male post 200 enter the sleeve groove 301 along the spiral arc-shaped guide groove 202, and engage with the meshing teeth 302 after relative rotational engagement, thereby realizing the mechanical locking connection of the conductive post.

[0043] To achieve the aforementioned guiding function of rotary engagement, a sliding pin head 210 is slidably sleeved on the inner side of the male prosthesis head 200. One end of the sliding pin head 210 is provided with a protruding pin, which is inserted into the rotary guide groove 202. The other end of the sliding pin head 210 is connected to a first spring 220, and the other end of the first spring 220 is fixed to the inner side of the male sleeve 400. During the insertion process, the first spring 220 provides elastic force to keep the sliding pin head 210 in the appropriate position, and under the combined action of the rotary guide groove 202 and the arc guide groove 110, the relative rotary engagement of the locking tooth 201 and the meshing tooth 302 is achieved.

[0044] With the male pin 200 and female pin 300 in the mating and insertion state, the locking tooth 201 is inserted through the gap between adjacent teeth 302, and meshes with the teeth 302 during rotational engagement to form a stable locking connection structure. Preferably, the multiple sliding pins 210 and teeth 302 are divided into several groups, each group is arranged in a straight line along the axial direction, and each group is distributed along the circumferential direction. The arc angle of the gap between adjacent groups is equal to the arc angle of each group's structure, thereby achieving a uniform circumferential distribution in the structure and improving meshing stability.

[0045] Meanwhile, in order to ensure the smoothness of rotation guidance during the insertion process, both the spiral guide groove 202 and the arc guide groove 110 are designed as spiral arcs, and the spiral angle of the two is equal to the arc center angle corresponding to the gap between adjacent locking teeth 201. This allows the male column head 200 to achieve automatic alignment and rotation under the action of external force and structural guidance during the insertion of the female column head 300.

[0046] After engagement, the sliding pin 330 enters the locking groove 111. Since the locking groove 111 extends axially, the friction between the sliding pin 330 and the inner wall of the locking groove 111 can keep the second spring 320 in a stretched state, thereby maintaining the relative position between the female prong 300 and the main sleeve 100 unchanged, thus ensuring that the male prong 200 and the female prong 300 are in a locked connection state and will not loosen due to external disturbances.

[0047] Preferably, the nut 310 is threaded onto the outer surface of the female column head 300, and one end of the second spring 320 is rotatably connected to the outer surface of the nut 310, so that when the female column head 300 is rotated and adjusted, the second spring 320 can rotate synchronously to cooperate, avoiding the problem of spring kinking or damage due to rotation, thereby improving the stability and life of the entire structure.

[0048] Working principle and usage process of this utility model:

[0049] This high-voltage pluggable conductive post achieves high-voltage electrical connection through the meshing of the male post head 200 and the female post head 300, and its locking and unlocking process is controlled by structural limiting and elastic elements. Its main working principle includes:

[0050] Docking guidance and locking: During the insertion process of the male spur head 200 and the female spur head 300, the locking tooth 201 is aligned with the sleeve groove 301 of the female spur head; after insertion, under the action of the rotary guide groove 202 and the arc guide groove 110, the male and female spur heads are guided to rotate relative to each other by means of the insertion force, so that the locking tooth 201 and the meshing tooth 302 can achieve rotational meshing; after the meshing is completed, the sliding pin 330 enters the locking groove 111 to maintain the locking state.

[0051] Locking stability and anti-detachment structure: The second spring 320 keeps the nut 310 in a stretched state and maintains the relative position of the female prosthesis head 300 and the main sleeve 100 by means of friction; the sliding pin 330 restricts axial movement after entering the locking groove 111 to prevent the male prosthesis head 200 from accidentally coming out.

[0052] Electrical connection reliability: After the male bushing 200 and the female bushing 300 are connected, their surface electrode lines establish electrical contact; the main bushing 100 and the male bushing 400 are made of insulating material, which effectively ensures high-voltage electrical safety.

[0053] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0054] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high voltage plug-in electrically conductive post, characterized by, include: The sleeve comprises a main sleeve (100), a male prong (200), a female prong (300), and a male sleeve (400). The male prong (200) and the female prong (300) are slidably fitted onto the inner sides of the male sleeve (400) and the main sleeve (100), respectively. A nut (310) is fitted onto the surface of the female prong (300), and a second spring (320) is threaded onto it. The nut (310) is in a stretched state, with one end fixedly connected to the inner side of the main sleeve (100) and the other end slidably connected to the surface of the second spring (320). One end of the female prong (300) has a sleeve groove (301), and the inner side of the sleeve groove (301) has teeth (302). A sliding pin (330) is fixedly installed on the surface of the female column head (300). The surface of the main sleeve (100) is provided with an arc guide groove (110) and a locking groove (111) for guiding the sliding pin (330) to slide. The surface of the male column head (200) is provided with a locking tooth (201) for engaging with the meshing tooth (302). A sliding pin head (210) is slidably sleeved on the inner side of the male column head (200). One end of the sliding pin head (210) is provided with a first spring (220) fixed on the inner side of the male sleeve (400). A rotary guide groove (202) is provided on the surface of the male column head (200). A protruding pin is sleeved on the inner side of the rotary guide groove (202) on the surface of the sliding pin head (210).

2. A high voltage plug-in electrically conductive post according to claim 1, characterized in that The main sleeve (100) and the male sleeve (400) are made of insulating material, and the surfaces of the male head (200) and the female head (300) are electrically connected with electrode wires.

3. A high voltage plug-in electrically conductive post according to claim 1, wherein, When the male prong (200) and female prong (300) are in the docking state, the locking tooth (201) is inserted into the inner side of the sleeve groove (301), and the male prong (200) and female prong (300) are locked by the engagement of the locking tooth (201) and the meshing tooth (302).

4. A high voltage plug-in electrically conductive post according to claim 1, wherein, The locking teeth (201) and the meshing teeth (302) are all arc-shaped convex teeth, and the sliding pins (210) and meshing teeth (302) are divided into multiple groups. Each group of sliding pins (210) and meshing teeth (302) is arranged in a straight line. Each group of sliding pins (210) and meshing teeth (302) is arranged circumferentially, and the central angle of the gap between adjacent groups of sliding pins (210) and meshing teeth (302) is equal to the size of the central angle of the sliding pins (210) and meshing teeth (302).

5. A high-voltage pluggable conductive post according to claim 1, characterized in that, Both the spiral guide groove (202) and the arc guide groove (110) are spiral arc-shaped, and the spiral angle of the spiral guide groove (202) and the arc guide groove (110) is equal to the arc center angle of the gap between adjacent locking teeth (201).

6. A high-voltage pluggable conductive post according to claim 1, characterized in that, The end of the arc guide groove (110) is connected to the locking groove (111), and the locking groove (111) extends in the axial direction for the sliding pin (330) to retain it.

7. A high-voltage pluggable conductive post according to claim 1, characterized in that, The nut (310) is threaded onto the surface of the female post head (300), and one end of the second spring (320) is rotatably connected to the surface of the nut (310).

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