Buckle self-locking connector

Abstract

The utility model relates to the connector field, and discloses a buckle self-locking connector, which comprises a socket end, a socket shell and a plug shell, the center of the right end of the socket end is provided with the socket shell, the inner cavity of the socket shell is provided with three groups of connecting blocks, and a plurality of groups of plugging groove bodies are arranged among the three groups of connecting blocks. A sealing buffer rubber pad is arranged at the left end of an inner cavity of the socket shell, a plug shell is arranged on the right side of the socket shell, and a connecting clamping cap is arranged at the outer end of the plug shell. According to the utility model, the connecting block and the limiting groove are arranged on the socket shell as a first self-locking device, the wave-shaped spring rebounds after unloading force, the connecting clamping cap is arranged on the plug shell to complete second self-locking between the connecting clamping cap and the plug shell, and the gap of the connecting block is arranged to form the plugging groove, so that the plugging effect is improved. Third self-locking between the socket shell and the plug shell is ensured through connection with the plugging block, mutual counterbalance and locking control among the three groups of connecting assemblies are completed, and the structural stability of the connector is effectively ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a snap-on self-locking connector. Background Art

[0002] A connector generally refers to an electrical connector, that is, a plug-in device that connects two active devices, transmits current or signals, and the male and female ends can transmit information or current after contact, which is also called a connector. At present, when the connector plug and the socket end of the bayonet-type electrical connector are plugged in, the connecting ring is rotated, and the pin on the socket moves spirally along the track of the three-curved groove of the connecting ring, driving the connecting ring to move axially, thereby pressing the internal wave spring. The wave spring is compressed to generate an elastic locking retention force, and the connection is completed. It can only be compressed to generate axial pressure. The anti-loosening of the bayonet connector can only be guaranteed by the low point of the three-curved groove of the connecting ring. Under the action of mechanical stress such as high-intensity vibration environment or collision, there is a risk of loosening and unlocking. For this reason, a snap-on self-locking connector is proposed. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to solve at least one aspect of the above problems, the utility model first provides a snap-on self-locking connector, which realizes self-locking connection through its own connection structure, and does not require a specific plug-in connection device to achieve a locking connection, thereby effectively improving the connection firmness of the connector, being able to withstand high-intensity vibrations to the connector, avoiding instability of the connector structure caused by external factors and environmental influences, and ensuring continuous and stable use of the connector.

[0005] (II) Technical solution

[0006] In order to solve the technical problem, the utility model provides a snap-on self-locking connector, including a socket end, a socket shell and a plug shell, a socket shell is provided in the center of the right end of the socket end, three groups of connecting blocks are provided in the inner cavity of the socket shell, a group of limiting grooves are respectively provided at the right ends of the connecting blocks, socket pins are respectively provided in the limiting grooves, and several groups of plug-in slots are provided between the three groups of connecting blocks, a sealing buffer rubber pad is provided at the left end of the inner cavity of the socket shell, a plug shell is provided on the right side of the socket shell, a connecting cap is provided at the outer end of the plug shell, and alignment sockets are respectively provided at the tube wall of the connecting cap corresponding to the socket pin.

[0007] As a preferred solution of the utility model, an external spiral sealing ring is provided at the connection between the right end tube wall of the plug shell and the right end edge of the connecting cap, a cavity is provided on the right side of the connecting cap, a wave spring is provided in the cavity, an abutment block is provided on the left side of the wave spring, an anti-loosening ring is provided on the left end of the abutment block, a socket connecting column is provided in the center of the anti-loosening ring, a plug-in frame is provided at the left end of the socket connecting column, a plurality of groups of plug-in blocks are provided on the plug-in frame, and an embedded connecting ring is provided on the left end of the plug-in frame.

[0008] As a preferred solution of the utility model, a telescopic cavity is provided at the bottom edge of the limit groove, a plurality of strong springs are evenly provided at the edge of the telescopic cavity, a group of limit blocks are respectively provided at the protruding ends of the strong springs, and a rubber stopper is provided on the inner side of the limit block.

[0009] Furthermore, a receiving cavity is provided at the bottom of the inner end surface of the limiting block, and the receiving cavity is provided on a side of the inner cavity of the limiting groove that is toward the axis of the socket housing.

[0010] Further, the connecting block includes a first connecting block, a second connecting block and a third connecting block, a first plug-in slot is provided between the first connecting block and the second connecting block, a first intermediate block is provided between the first connecting block and the third connecting block, two groups of second plug-in slots are provided between the first connecting block and the third connecting block via the first intermediate block, a second intermediate block is provided between the second connecting block and the third connecting block, and two groups of third plug-in slots are provided between the second connecting block and the third connecting block via the second intermediate block.

[0011] Furthermore, the number and specifications of the plug-in blocks correspond to the first plug-in slot, the second plug-in slot and the third plug-in slot respectively.

[0012] Furthermore, a connection groove is provided on the right end surface of the sealing buffer rubber pad, and the embedded connection ring is adapted to the specification of the connection groove.

[0013] Furthermore, three groups of spiral grooves are provided at the left end of the inner wall of the connecting card cap, and card interfaces are respectively provided at the right ends of the spiral grooves, and the card interfaces are arranged opposite to the alignment sockets.

[0014] Furthermore, an anti-dropping block is provided at the bottom of the socket card pin, a connecting rod is provided at the top of the anti-dropping block, and a clamping rod is provided at the top of the connecting rod.

[0015] Furthermore, a connecting column limiting ring is provided at the right end of the inner cavity wall tube of the socket connecting column.

[0016] (III) Beneficial effects

[0017] 1. The utility model provides a snap-on self-locking connector with a simple structure. A connecting block and a limiting groove are arranged on the socket housing as the first self-locking device, which cooperate with the spiral groove to complete the fixing setting of the connecting card cap. When the connecting card cap and the socket housing are screwed together, the wave spring unloads the force and rebounds, and the connecting card cap is arranged on the plug housing to complete the second self-locking between the connecting card cap and the plug housing, effectively avoiding the movement between the connecting card cap and the two groups of housing structures, and ensuring the firmness of the connection of the socket assembly; a connecting block gap is arranged to form a plug-in groove, which cooperates with the mutual limitation between the plug-in block to ensure the third self-locking between the socket housing and the plug housing, completes the mutual checks and balances and locking control between the three groups of connection components, and effectively ensures the structural stability of the connector.

[0018] 2. The utility model provides a limit groove to cooperate with the socket card pin to complete the connection between the socket shell and the connecting card cap. The rotation of the spiral groove can reduce the difficulty of installing the connecting card cap and can realize the fixed installation of the connecting card cap. The elastic limit component of the limit groove is used to fix the anti-dropping block to ensure the firmness of the socket card pin. The sealing buffer rubber pad is provided to effectively provide protection for the components connected by the plug and socket components, avoid the impact force of the component card connection affecting the structural performance of the plug block and the plug slot, and ensure the structural and stability of the connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a transverse cross-sectional view of the snap-on self-locking connector of an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the disassembled structure of the snap-on self-locking connector according to an embodiment of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the socket connection column of the snap-on self-locking connector according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic diagram of the arrangement structure of the connection block of the snap-on self-locking connector according to an embodiment of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the connection between the socket connection column and the left end of the connection cap of the snap-on self-locking connector according to the embodiment of the utility model;

[0024] Figure 6 It is a schematic diagram of the left side structure of the connection cap of the snap-on self-locking connector according to an embodiment of the utility model;

[0025] Figure 7 It is a schematic diagram of the left side structure of the connection cap of the buckle self-locking connector in another state according to an embodiment of the utility model;

[0026] Figure 8This is a schematic diagram of the unfolded structure of the outer wall of the connecting cap of the snap-on self-locking connector according to an embodiment of the utility model;

[0027] Fig. 9 It is a structural schematic diagram of the limit groove assembly of the snap-on self-locking connector according to an embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1 is the socket end, 2 is the socket housing, 3 is the connecting block, 31 is the first connecting block, 32 is the second connecting block, 33 is the third connecting block, 34 is the first middle block, 35 is the second middle block, 4 is the limiting groove, 41 is the telescopic cavity, 42 is the strong spring, 43 is the limiting block, 44 is the rubber stopper, 5 is the plug-in slot body, 51 is the first plug-in slot, 52 is the second plug-in slot, 53 is the third plug-in slot, 6 is the socket card pin, 7 is the sealing buffer rubber pad, 8 is the connecting card cap, 9 is the alignment socket, 10 is the plug housing, 11 is the external spiral sealing clamp ring, 12 is the wave spring, 13 is the abutment block, 14 is the anti-loosening ring, 15 is the socket connecting column, 16 is the plug-in frame, 17 is the plug-in block, 18 is the embedded connecting ring, 19 is the connecting column limiting ring, 20 is the spiral groove, and 21 is the card interface. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] See also Figure 1-9 The embodiment of the utility model provides a snap-on self-locking connector, including a socket end 1, a socket housing 2 and a plug housing 10. The socket end 1 is provided with a socket housing 2 in the center of the right end. The inner cavity of the socket housing 2 is provided with three groups of connecting blocks 3. The right ends of the connecting blocks 3 are respectively provided with a group of limiting grooves 4. The limiting grooves 4 are respectively provided with socket card pins 6. Several groups of plug-in slots 5 are provided between the three groups of connecting blocks 3. A sealing buffer rubber pad 7 is provided at the left end of the inner cavity of the socket housing 2. A plug housing 10 is provided on the right side of the socket housing 2. A connecting card cap 8 is provided at the outer end of the plug housing 10. The wall of the connecting card cap 8 corresponds to the socket card pin 6. Alignment sockets 9 are respectively provided, and connecting blocks 3 are arranged at different positions in the inner cavity of the socket shell 2 to form multiple groups of plug-in slots 5 of different widths, so that the connection between the plug-in block 17 set at the left end of the plug shell 10 and the plug-in slot 5 is specific and unique, which effectively improves the accuracy and firmness of the connection between the plug shell 10 and its components and the socket shell 2. A sealing rubber pad 7 is provided at the left end of the inner cavity of the socket shell 2 to enhance the protection of the plug-in block 17 and the embedded connecting ring 18, so as to avoid the plug assembly being inserted into the socket shell 2. A large impact affects the structural performance of the plug-in block 17 and the embedded connecting ring 18.

[0032] The basic structure and specifications of the self-locking connector are limited by setting the socket shell 2 at the outer end of the socket end 1, and the inner cavity of the connecting card cap 8 is set to fix the setting of the socket shell 2 and the plug shell 10. The inner cavity of the socket shell 2 is enhanced by setting a connecting block 3 to enhance the connection control of the connecting card cap 8. The connecting block 3 is respectively provided with a limiting groove 4, and the socket card pin 6 is inserted into the alignment socket 9 and the limiting groove 4 from the outside to the inside in sequence to complete the connection between the connecting card cap 8 and the socket shell 2 by using the socket card pin 6, so as to avoid displacement of the connection between the two.

[0033] See also Figure 1-3 An external spiral sealing collar 11 is provided at the connection between the right end tube wall of the plug housing 10 and the right end edge of the connecting cap 8. A cavity is provided on the right side of the connecting cap 8, and a wave spring 12 is provided in the cavity. A contact block 13 is provided on the left side of the wave spring 12, and a locking collar 14 is provided on the left end of the contact block 13. A socket connecting column 15 is provided in the center of the locking collar 14, and a plug-in frame 16 is provided on the left end of the socket connecting column 15. A plurality of groups of plug-in blocks 17 are provided on the plug-in frame 16, and an embedded connecting ring 18 is provided on the left end of the plug-in frame 16. The right end tube wall of the plug housing 10 is in contact with the right end of the connecting cap 8, and the sealing performance of the connection between the two is enhanced by providing an external spiral sealing collar 11 to prevent external environmental pollutants from entering the plug. The outer end surface of the external spiral sealing collar 11 is arranged on the outer side of the right end of the connecting cap 8, which can assist the plug housing 10 in limiting the connecting cap 8. The plug housing 10 is provided with an abutment block 13 at the left end of the cavity of the connecting cap 8, and the limiting setting of the wave spring 12 in the extended state is completed by the abutment block 13. When the connecting cap 8 and the plug housing 10 are connected, the socket card pin 6 is inserted into the limiting groove 4 by aligning the socket 9. The pressure on the wave spring 12 disappears, and the wave spring 12 returns to its original shape, firmly setting the connecting cap 8 on the plug housing 10, effectively preventing the connecting cap 8 from moving.

[0034] The anti-loosening ring 14 is provided to prevent the socket connecting column 15 and the plug housing 10 from loosening. The plug-in frame 16 is provided at the left end of the socket connecting column 15 and embedded in the socket housing 2. The plug-in block 17 is embedded in the corresponding plug-in slot 5 to complete the limited control of the socket housing 2 on the plug housing 10. During the insertion of the plug-in block 17 into the plug-in slot 5, the front end of the plug-in block 17 embeds the embedded connecting ring 18 into the sealing buffer rubber pad 7, so as to reduce the impact of the connection between the socket connecting column 15 and the socket housing 2 through the sealing buffer rubber pad 7, thereby avoiding damage to the plug-in block 17 and the plug-in frame 16.

[0035] See also Fig. 9A telescopic cavity 41 is provided at the bottom edge of the limit groove 4, and a plurality of strong springs 42 are evenly provided at the edge of the telescopic cavity 41. A group of limit blocks 43 are respectively provided at the protruding ends of the strong springs 42, and a rubber stopper 44 is provided inside the limit block 43. The inner wall of the bottom of the limit groove 4 uses the telescopic cavity 41 to fix the setting of several groups of strong springs 42. The strong springs 42 are all arranged at 60 degrees counterclockwise with the bottom wall plate of the limit groove 4, and the other end of the strong spring 42 is connected to the limit block 43. The inner side of the limit block 43 establishes contact with the bottom edge of the socket card pin 6 through the rubber stopper 44. When the socket card pin 6 continues to be embedded in the limit groove 4, the limit block 43 is subjected to the circumferential extrusion force, so that the strong spring 42 is compressed, driving the limit block 43 to move toward the inner wall plate of the limit groove 4, so that the socket card pin 6 is squeezed into the limit groove 4. When the bottom of the socket card pin 6 is squeezed into the limit groove 4, the fixed setting of the socket card pin 6 in the limit groove 4 is completed.

[0036] A receiving cavity is provided at the bottom of the inner end surface of the limiting block 43, and the receiving cavity is provided on the side of the inner cavity of the limiting groove 4 tending to the axis of the socket housing 2. By pressing the anti-dropping block of the socket pin 6 into the receiving cavity, a positioning connection between the limiting groove 4 and the socket pin 6 is established.

[0037] See also Figure 4The connecting block 3 includes a first connecting block 31, a second connecting block 32 and a third connecting block 33. A first plug-in slot 51 is provided between the first connecting block 31 and the second connecting block 32. A first intermediate block 34 is provided between the first connecting block 31 and the third connecting block 33. Two groups of second plug-in slots 52 are provided between the first connecting block 31 and the third connecting block 33 by spacing the first intermediate block 34. A second intermediate block 35 is provided between the second connecting block 32 and the third connecting block 33. Two groups of third plug-in slots 53 are provided between the second connecting block 32 and the third connecting block 33 by spacing the second intermediate block 35. The first connecting block 31, the second connecting block 32 and the third connecting block 33 are arranged and fixed on the inner wall of the socket housing 2. A first plug-in slot 51 is provided between the first connecting block 31 and the second connecting block 32, which is connected to a group of matching plug-in blocks provided on the plug-in frame 16. The first Two groups of second plug-in slots 52 are provided between the connecting block 31 and the third connecting block 33 through the interval of the first middle block 34, and the second plug-in slots 52 are connected to the two groups of matching plug-in blocks correspondingly arranged on the plug-in frame 16. Two groups of third plug-in slots 53 are provided between the second connecting block 32 and the third connecting block 33 through the interval of the second middle block 35. The width of the second middle block 35 is set to half of the width of the first middle block 34, that is, the width of the third plug-in slot 53 is larger than the width of the second plug-in slot 52. The third plug-in slot 53 is connected to the two groups of matching plug-in blocks correspondingly arranged on the plug-in frame 16. The setting rules of the specifications of the five groups of plug-in slots arranged between the three groups of connecting blocks are all unique, so that the setting of the plug-in block 17 of the plug-in frame 16 is also unique, ensuring the certainty of the assembly direction of the socket assembly and the plug assembly, and enhancing the firmness of the connection between the socket assembly and the plug assembly.

[0038] The number and specifications of the plug-in blocks 17 correspond to the first plug-in slot 51, the second plug-in slot 52 and the third plug-in slot 53 respectively. The plug-in blocks 17 are pushed into the plug-in slots in parallel with the plug-in frames 16. The five groups of plug-in blocks are respectively embedded in the relatively arranged plug-in slots to establish a fixed arrangement of the connection blocks 3 pairs of socket connection columns 15.

[0039] A connecting groove is provided on the right end face of the sealing buffer rubber pad 7, and the embedded connecting ring 18 is adapted to the specifications of the connecting groove. Rubber rings are respectively provided at the upper and lower ends of the right end face of the sealing buffer rubber ring, and the gap between the two groups of rubber rings is set as the connecting groove. When the socket connecting column 15 is pushed into the socket housing 2, the embedded connecting ring 18 is pressed into the connecting groove, and the impact damage to the plug-in frame 16 and its components is reduced by the sealing buffer rubber pad 7.

[0040] See also Figure 6-8, three groups of spiral grooves 20 are provided at the left end of the inner wall of the connecting card cap 8, and card interfaces 21 are respectively provided at the right end of the spiral groove 20. The card interface 21 is arranged opposite to the alignment socket 9. The setting of the socket card pin 6 is fixed on the wall plate of the socket housing 2. When the socket housing 2 is connected to the connecting card cap 8, the outer ends of the three groups of socket card pins 6 are respectively placed in a group of spiral grooves 20, and the connecting card cap 8 is rotated. When the card rod is embedded in the card interface 21, the connection of the connecting card cap 8 is stopped. At this time, the connection between the connecting card cap 8 and the socket housing 2 is completed. The connection status of the socket card pin 6 and the card interface 21 can be checked by aligning the socket 9, and the connection angle of the connecting card cap 8 and the socket housing 2 can be adjusted.

[0041] See also Figure 2 The bottom of the socket card pin 6 is provided with an anti-dropping block, the top of the anti-dropping block is provided with a connecting rod, and the top of the connecting rod is provided with a connecting rod. The socket card pin 6 establishes a setting with the connecting block 3 by embedding the anti-dropping block into the limiting groove 4, and the outer end of the anti-dropping block is connected to the connecting rod through the connecting rod. By setting the connecting rod in the card interface 21, the connection control between the socket housing 2 and the connecting card cap 8 is completed through the socket card pin 6.

[0042] See also Figure 5 A connecting column limiting ring 19 is provided at the right end of the inner wall tube of the socket connecting column 15. The inner cavity of the socket connecting column 15 is provided with a connecting column limiting ring 19 to enhance the stability of the abutment block 13 and enhance the structural performance of the connection end of the socket connecting column 15 and the plug housing 10.

[0043] The embodiment of the utility model provides a snap-on self-locking connector, in which the socket housing 2 cooperates with the connecting cap 8 and the plug housing 10 to realize the structural setting of the connector. The inner cavity of the socket housing 2 is connected to the plug housing 10 through the unique five-slot and five-rib structure linear socket housing 2, thereby ensuring the stability and uniqueness of the connection structure. The setting of the connecting cap 8 can effectively avoid the movement of the connection structure between the two groups of shells. The spiral groove 20 is set to cooperate with the rotation to realize the connection with the socket pin 6. The self-locking of the connecting cap 8 is completed by cooperating with the rebound force of the wave spring 12, which can effectively avoid the loosening of the connecting cap 8 and ensure the firmness of the connection of the socket assembly.

[0044] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.

Claims

1. A snap-on self-locking connector, characterized in that: The invention comprises a socket end (1), a socket shell (2) and a plug shell (10), wherein the socket end (1) is provided with a socket shell (2) at the center of the right end, the inner cavity of the socket shell (2) is provided with three groups of connection blocks (3), the right ends of the connection blocks (3) are respectively provided with a group of limiting grooves (4), the limiting grooves (4) are respectively provided with socket clamping pins (6), a plurality of groups of plug-in slots (5) are provided between the three groups of connection blocks (3), a sealing buffer rubber pad (7) is provided at the left end of the inner cavity of the socket shell (2), a plug shell (10) is provided on the right side of the socket shell (2), a connection clamping cap (8) is provided at the outer end of the plug shell (10), and the connection clamping cap (8) is respectively provided with alignment sockets (9) at the positions of the tube wall of the connection clamping cap (8) corresponding to the socket clamping pins (6); An external spiral sealing collar (11) is provided at the connection between the right end tube wall of the plug housing (10) and the right end edge of the connecting cap (8); a cavity is provided on the right side of the connecting cap (8); a wave spring (12) is provided in the cavity; an abutment block (13) is provided on the left side of the wave spring (12); a locking ring (14) is provided on the left end of the abutment block (13); a socket connecting column (15) is provided in the center of the locking ring (14); a plug-in frame (16) is provided on the left end of the socket connecting column (15); a plurality of groups of plug-in blocks (17) are provided on the plug-in frame (16); and an embedded connecting ring (18) is provided on the left end of the plug-in frame (16); A telescopic cavity (41) is provided at the bottom edge of the limiting groove (4), a plurality of strong springs (42) are evenly arranged at the edge of the telescopic cavity (41), a group of limiting blocks (43) are respectively provided at the protruding ends of the strong springs (42), and a rubber stopper (44) is provided inside the limiting blocks (43).

2. A snap-on self-locking connector according to claim 1, characterized in that: The bottom of the inner end surface of the limiting block (43) is provided with an accommodating cavity, and the accommodating cavity is arranged on the side of the inner cavity of the limiting groove (4) tending towards the axis of the socket housing (2).

3. The snap-on self-locking connector according to claim 1, characterized in that: The connecting block (3) comprises a first connecting block (31), a second connecting block (32) and a third connecting block (33); a first plug-in slot (51) is provided between the first connecting block (31) and the second connecting block (32); a first intermediate block (34) is provided between the first connecting block (31) and the third connecting block (33); two groups of second plug-in slots (52) are provided between the first connecting block (31) and the third connecting block (33) by spacing the first intermediate block (34); a second intermediate block (35) is provided between the second connecting block (32) and the third connecting block (33); and two groups of third plug-in slots (53) are provided between the second connecting block (32) and the third connecting block (33) by spacing the second intermediate block (35).

4. The snap-on self-locking connector according to claim 3, characterized in that: The number and specifications of the plug-in blocks (17) are respectively arranged corresponding to the first plug-in slot (51), the second plug-in slot (52) and the third plug-in slot (53).

5. The snap-on self-locking connector according to claim 1, characterized in that: The right end surface of the sealing buffer rubber pad (7) is provided with a connecting groove, and the embedded connecting ring (18) is adapted to the specification of the connecting groove.

6. The snap-on self-locking connector according to claim 1, characterized in that: The left end of the inner wall of the connecting card cap (8) is provided with three groups of spiral grooves (20), and the right ends of the spiral grooves (20) are respectively provided with card interfaces (21), and the card interfaces (21) are arranged opposite to the alignment socket (9).

7. The snap-on self-locking connector according to claim 1, characterized in that: An anti-dropping block is provided at the bottom of the socket latch (6), a connecting rod is provided at the top of the anti-dropping block, and a clamping rod is provided at the top of the connecting rod.

8. The snap-on self-locking connector according to claim 1, characterized in that: A connecting column limiting ring (19) is provided at the right end of the inner wall tube of the socket connecting column (15).

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