Anti-loose connector

Abstract

The utility model relates to the field of photovoltaic connectors, in particular to an anti-loose connector, which comprises a connector body, a screw cap and a sealing ring, a channel is arranged in the connector body, one end of the connector body is provided with a threaded connecting part, an anti-loose part is arranged on the inner side of the threaded connecting part, and a clamping block is arranged on the inner side of the anti-loose part. An avoiding groove is formed between the clamping block and the anti-disengaging part, the tail end of the clamping block is arranged in the avoiding groove, a threaded groove matched with the threaded connecting part is formed in the nut, a plurality of sets of one-way clamping grooves which are sequentially connected are formed in the outer edge of the interior of the nut, and each one-way clamping groove comprises a guide groove and a containing groove; a right-angle head matched with the right-angle portion is arranged at the end of the clamping block, a groove is formed in the surface of the nut, the sealing ring is arranged in the groove, an inserting hole communicated with the containing groove is formed in the groove, a ball head rod is arranged on the inner side of the clamping block, and a ball head hole matched with the ball head rod in a clamped mode is formed in the bottom of the avoiding groove. Loosening prevention and disassembly are achieved according to use.

Description

Technical Field

[0001] The utility model relates to the field of photovoltaic connectors, in particular to an anti-loosening connector. Background Art

[0002] Photovoltaic power generation systems require interconnecting multiple photovoltaic modules through cables to form a photovoltaic module array, which then outputs voltage to the outside. Photovoltaic connectors are essential components for interconnecting photovoltaic modules. Connectors are divided into male and female ends, with conductive terminals inside. The internal conductive terminals are generally divided into pins and sockets. The male and female ends of the connectors are connected, and cables are connected to both sides of the male and female ends. The inner end of the cable is connected to the conductive end of the pin or socket, and the pin and socket are electrically connected to each other. After the cable is inserted into the male and female ends, it is fixed with a nut at the end to prevent it from falling off. However, ordinary nut threaded connections are prone to loosening during actual use, affecting actual use.

[0003] CN220209440U applied for by the present applicant discloses a threaded anti-retraction structure of a connector. The utility model comprises: a connector body and a nut, the connector body is provided with a channel, one end of the connector body is provided with a threaded connection part, the inner side of the threaded connection part is provided with an anti-slip part, the inner side of the anti-slip part is provided with a clamping block, an avoidance groove is provided between the clamping block and the anti-slip part, and the tail end of the clamping block is arranged inside the avoidance groove, the interior of the nut is provided with a threaded groove matching the threaded connection part, the inner outer edge of the nut is provided with several groups of one-way clamping grooves connected in sequence, the one-way clamping groove includes a guide groove and a receiving groove, the guide groove is inclined clockwise outward, the bottom of the receiving groove is a right-angled part away from the guide groove, and the end of the clamping block is provided with a right-angled head matching the right-angled part, which effectively locks and ensures that the nut is fixed to the connector tail for a long time, thereby improving the reliability of long-term fixation of the assembly and reducing maintenance costs.

[0004] However, this structure has the following shortcomings in actual use: the anti-slip part and the corresponding clamping block can achieve anti-slip and anti-retraction, so the threaded connection cannot be removed after installation; the actual assembly process may cause assembly errors due to the assembly of multiple parts; the nut of the connector body cannot be removed after tightening, so the nut can only be removed by violent destruction, which increases the overall production cost.

[0005] Therefore, in order to solve the deficiencies in the prior art, it is necessary to design an anti-loosening connector with a simple structure. Utility Model Content

[0006] The utility model provides an anti-loosening connector to solve the problems of the prior art.

[0007] The nut body has a plurality of one-way slots connected thereto, and the plurality of one-way slots are connected to the plurality of one-way slots. The plurality of one-way slots are connected to the plurality of one-way slots in a plurality of opposite directions. The plurality of one-way slots are connected to the plurality of one-way slots in a plurality of opposite directions. The plurality of one-way slots are connected to the plurality of one-way slots in a plurality of opposite directions.

[0008] As a further improvement, the tail end of the clamping block is connected to an annular support rib, and the annular support rib is fixed to the outer end surface of the anti-slip portion.

[0009] As a further improvement, the clamping blocks are arranged in two groups symmetrically about the center of the channel.

[0010] As a further improvement, two groups of annular support ribs are symmetrically arranged about the center of the channel.

[0011] As a further improvement, anti-slip grooves are arranged at intervals on the outside of the nut.

[0012] Compared with the prior art, the anti-loosening connector of the utility model has the following beneficial effects:

[0013] During normal assembly, the nut is tightened by turning clockwise. The guide groove can be used to rotate the block relative to the nut to the accommodating groove at different positions. The block is pushed by the nut and approaches the avoidance groove, allowing the nut to rotate relative to the block to achieve further tightening; the right-angled part of the accommodating groove is matched with the right-angled head at the end of the block, so that the nut cannot rotate counterclockwise relative to the block. After assembly with the nut, it can be effectively locked to ensure that the nut is stably fixed to the tail of the connector for a long time, improve the reliability of long-term fixation of the assembly, and reduce maintenance costs; when the nut can be stably fixed to the tail of the connector for a long time, it prevents loosening and retreat, and the connection is stable; when disassembly is required, remove the sealing ring, push the block inward through the pin, and then fix it in the avoidance groove, so that the block can be removed after being out of the slot, without violent destruction to remove the nut, reducing overall production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model

[0015] Figure 2 This is a schematic diagram of the internal cross-sectional view of the utility model

[0016] Figure 3 This is a schematic diagram of the structure of the connector body in the utility model.

[0017] Figure 4 This is a schematic diagram of the internal clamping structure of the utility model

[0018] Figure 5 This is a schematic diagram of the structure of the nut in the utility model

[0019] In the figure, 1-connector body, 11-channel, 12-threaded connection part, 13-anti-slip part, 14-block, 141-right-angle head, 142-annular support rib, 15-avoidance groove, 2-nut, 21-thread groove, 22-one-way card slot, 221-guide groove, 222-accommodation groove, 223-right-angle part, 3-anti-slip groove, 4-groove, 41-jack, 51-ball head rod, 52-ball head hole, 6-sealing ring. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0022] Below with reference to the embodiment and the attached Figures 1 to 5 , the technical solution of the utility model is further elaborated.

[0023] Example 1

[0024] The utility model provides an anti -looseness connector, including connector body 1, screw cap 2 and sealing ring 6, the inside of connector body 1 is equipped with passageway 11, one end of connector body 1 is equipped with threaded connection part 12, the inboard of threaded connection part 12 is equipped with anti -drop part 13, the inboard of anti -drop part 13 is equipped with clamping block 14, and the clamping block 14 is equipped with the relief groove 15 between anti -drop part 13 and clamping block 14 and is arranged in the relief groove 15 inside the tail end of clamping block 14, the inside of screw cap 2 is equipped with the thread groove 21 matched with threaded connection part 12, the inside of screw cap 2 is equipped with the single -way clamping groove 22 of a plurality of sets of connection in proper order, the single -way clamping groove 22 includes guide groove 221 and containing groove 222, the guide groove 221 is outwardly inclined and arranged in clockwise, the bottom of containing groove 222 far from the side of guide groove 221 is right angle part 223, the end of clamping block 14 is equipped with right angle head 141 matched with right angle part 223, the surface of screw cap 2 is equipped with recess 4, sealing ring 6 is arranged in recess 4, recess 4 is equipped with insertion hole 41 communicated with containing groove 222, the inboard of clamping block 14 is equipped with ball head rod 51, the bottom of relief groove 15 is equipped with ball head hole 52 matched with the ball head rod 51 of clamping block 14.

[0025] As Figures 1 to 4 The utility model discloses a use principle: after the cable is passed through screw cap 2 and enters the passageway 11 of connector body 1, the thread groove 21 of screw cap 2 is matched with threaded connection part 12 and is connected, when rotating screw cap 2 to anti -drop part 13, the clamping block 14 on anti -drop part 13 is clamped into single -way clamping groove 22, and a plurality of sets of single -way clamping groove 22 can be clamped into single -way clamping groove 22 when being screwed in different positions. Figure 4 In the middle, screw cap 2 is clockwise rotation and is the tightening direction, the guide groove 221 can make clamping block 14 rotate to different containing groove 222 in single -way clamping groove 22 relative to screw cap 2, clamping block 14 is pushed by screw cap 2 and approaches relief groove 15 further, and ball head rod 51 and the ball head hole 52 of relief groove 15 exist certain interval, allow screw cap 2 to rotate relative to clamping block 14, realize further tightening, and the right angle part 223 of containing groove 222 and the right angle head 141 of the end of clamping block 14 are matched and set, so that screw cap 2 cannot rotate counterclockwise relative to clamping block 14, and can be effectively locked after being assembled with screw cap, guarantee the long -term stable fixation of screw cap in connector tail, improve the reliability of long -term fixation of assembly, and reduce maintenance cost.

[0026] When assembling is wrong, the sealing ring 6 in recess 4 on screw cap 2 is taken out, then the tool needle is inserted into through hole 41 in proper order, until finding clamping block 14, clamping block 14 is pushed inwards until the ball head rod 51 of clamping block 14 is fixed and clamped into the ball head hole 52 of relief groove 15, the outer end of clamping block 14 is separated from single -way clamping groove 22, and the screw cap 2 can be rotated down from connector body 1 by taking out the insertion needle.

[0027] When assembled normally, the nut can be stably fixed to the tail of the connector for a long time, preventing loosening and retreating, and ensuring a stable connection. When disassembly is required, remove the sealing ring, push the card block inward through the pin, and then fix it in the avoidance groove. The card block can be removed after being out of the groove, without the need for violent destruction to remove the nut, thereby reducing the overall production cost.

[0028] As a further preferred embodiment, the tail end of the block 14 is connected to an annular support rib 142, and the annular support rib 142 is fixed to the outer end surface of the anti-slip portion 13. Figure 3 and Figure 4 As shown, the connection strength of the clamping block 14 is improved by the annular support rib 142 .

[0029] As a further preferred embodiment, two groups of the clamping blocks 14 are symmetrically arranged about the center of the channel 11 , and the two groups of clamping blocks 14 further improve the stability of the clamping.

[0030] As a further preferred embodiment, two groups of annular support ribs 142 are symmetrically arranged about the center of the channel 11 , and the two groups of annular support ribs 142 are connected to the corresponding clamping blocks 14 , thereby further improving the connection strength of the clamping blocks 14 .

[0031] As a further preferred embodiment, anti-skid grooves 3 are arranged at intervals on the outside of the nut 2 to improve the anti-skid property of rotation.

[0032] The above describes in detail the preferred embodiments of the present invention. It should be understood that those skilled in the art can make numerous modifications and variations based on the concepts of the present invention without inventive effort. Therefore, any technical solutions that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A loose-proof connector, characterized in that: include: The nut has a threaded connection portion at one end, an anti-slip portion at the inner side of the threaded connection portion, a card block at the inner side of the anti-slip portion, an avoidance groove between the card block and the anti-slip portion, and a tail end of the card block is arranged inside the avoidance groove, a threaded groove matching the threaded connection portion is provided inside the nut, and a plurality of one-way card slots connected in sequence are provided on the outer edge of the nut, the one-way card slot includes a guide groove and a receiving groove, the guide groove is inclined clockwise and outward, the bottom of the receiving groove is a right-angled portion away from the guide groove, the end of the card block is provided with a right-angled head matching the right-angled portion, the surface of the nut is provided with a groove, the sealing ring is arranged in the groove, the groove is provided with a jack connected to the receiving groove, a ball head rod is provided inside the card block, and a ball head hole matching the card head rod is provided at the bottom of the avoidance groove.

2. The anti-loosening connector according to claim 1, characterized in that: The tail end of the clamping block is connected with an annular support rib, and the annular support rib is fixed on the outer end surface of the anti-slip portion.

3. The anti-loosening connector according to claim 2, characterized in that: The clamping blocks are symmetrically arranged in two groups about the center of the channel.

4. The anti-loosening connector according to claim 2, characterized in that: The annular support ribs are symmetrically arranged in two groups about the center of the channel.

5. The anti-loosening connector according to claim 1, characterized in that: Anti-slip grooves are arranged at intervals on the outside of the nut.

Images