Connector with quick locking function

Abstract

The utility model provides a connector with a quick locking function, which relates to the technical field of connectors, and comprises a bayonet plug and a bayonet socket which are matched with each other and are in plug-in connection, the bayonet plug comprises a plug connecting nut, a plug shell and an elastic piece, the plug connecting nut is sleeved on a plug end of the plug shell, the plug shell is provided with an elastic accommodating cavity, and the elastic piece is sleeved on the plug end of the plug shell. A force adjusting groove is formed in the plug connecting nut in the circumferential direction, the elastic piece is installed between the elastic containing cavity and the force adjusting groove in a pre-tightening mode, a protrusion on the elastic piece can move between the unlocking point C and the locking point D, an avoiding groove and a guide rail which are communicated are arranged on the outer surface of the opposite inserting end of the bayonet socket, and a sliding block is arranged at the opposite inserting end of the plug connecting nut. When the headstock is inserted, the sliding block reaches the guide rail along the avoiding groove, the plug is rotated to be connected with the nut, the sliding block rotates along the guide rail, the protrusion of the elastic piece moves to the locking point D from the unlocking point C to achieve locking, and unlocking is achieved through reverse rotation. The connector is good in compatibility, saves time and space, and is convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, specifically is a kind of connector with fast lock function. BACKGROUND

[0002] Connector includes plug component and socket component, is widely used in servo motor's machine group shell in the field of industrial robot mechanical arm, to realize the transmission of power and encoder signal.Industrial robot is mainly applied to electronic, logistics, automobile and other automated assembly product line, for multi-joint manipulator and multi-degree-of-freedom mechanical device use.The motion trajectory of existing mechanical arm and use scene are more complex, with the continuous development of industry, higher requirements are put forward to space and operation.Screw connection form connector inserts, and reliable connection or separation can be realized by manually rotating connecting nut;The operation mode needs larger operation space, and the time is spent to realize insertion.

[0003] Prior art defects: as shown in Figure 1 、 Figure 2 , Figure 1 Threaded socket 100 in and threaded plug 200 in Figure 2 Plug, threaded socket 100 is composed of socket sleeve, square disc shell etc., there are threads on both ends of square disc shell, one end of square disc shell and socket sleeve are connected together by thread, the other end of socket thread 1001 is connected with threaded plug 200;Threaded plug 200 is composed of connecting nut, spline housing, snap spring etc., there is plug thread 2001 on one end of connecting nut, there is snap spring groove on one end, plug thread 2001 on connecting nut is matched with socket thread 1001 (when head seat is connected);Connecting nut snap spring groove is matched with snap spring and spline housing snap spring groove, after connecting nut and spline housing are connected, it can rotate 360 degrees.In narrow space, operator may not directly turn connecting nut with hand, and threaded connection needs to be aligned with thread first, and then rotated for many turns to reach connection in place, if space is narrow, the above steps may not be completed.Also, connecting nut is not provided with anti-loosening structure after being tightened. Utility model content

[0004] To solve the above technical problems, the utility model provides a kind of connector with fast lock function, only small angle rotation can be connected in place, and it has anti-loosening structure.

[0005] To achieve the above technical purposes, the technical scheme adopted is: a connector with a quick locking function, comprising a bayonet plug and a bayonet socket matched and connected in a plug-in manner, the bayonet plug comprising a plug connection nut, a plug shell and an elastic member, the plug connection nut being sleeved on the plug-in end of the plug shell and being able to rotate relative to the plug shell and be axially limited, the plug shell being provided with an elastic accommodating cavity, the plug connection nut being provided with a force adjusting groove opened in the circumferential direction, the elastic member being pre-tightened and installed between the elastic accommodating cavity and the force adjusting groove, the two ends of the force adjusting groove being respectively an unlocking point C and a locking point D, a protrusion on the elastic member being able to move between the unlocking point C and the locking point D, and the torque force when rotating from the locking point D to the unlocking point C being greater than the torque force when rotating from the unlocking point C to the locking point D; the plug-in end of the bayonet socket being provided with an avoidance groove and a guide rail which are communicated, the guide rail being arranged along the circumferential direction of the bayonet socket, and the plug-in end of the plug connection nut being provided with a sliding block, so that, with the plug-in of the bayonet plug and the bayonet socket, the sliding block reaches the guide rail along the avoidance groove, the plug connection nut is rotated, the sliding block rotates along the guide rail, the protrusion of the elastic member moves from the unlocking point C to the locking point D to realize locking, and reverse rotation realizes unlocking.

[0006] A groove and a protrusion matched with each other are arranged between the planes where the plug shell and the plug connection nut are in contact, the protrusion slides along the arc surface of the groove to the lowest point of the groove when unlocking, and the protrusion slides along the arc surface of the groove to the highest point of the groove when locking, and an interference fit is formed.

[0007] A ring sleeve is arranged between the plug shell and the plug connection nut, and the ring sleeve is fixedly sleeved on the plug shell.

[0008] A groove and a protrusion matched with each other are arranged between the planes where the ring sleeve and the plug connection nut are in contact, the protrusion slides along the arc surface of the groove to the lowest point of the groove when unlocking, and the protrusion slides along the arc surface of the groove to the highest point of the groove when locking, and an interference fit is formed.

[0009] The groove and the protrusion matched with each other are arranged in two groups, and the two groups are arranged oppositely.

[0010] A key and a limiting groove matched with each other are arranged between the plug shell and the plug connection nut, the key is able to slide in the limiting groove, and the sliding stroke of the key is the same as the moving stroke of the protrusion in the force adjusting groove.

[0011] The extension direction of the avoidance groove is consistent with the plug-in direction.

[0012] The surface of the plug connection nut is provided with an identifier for indicating the rotation direction and the plug-in direction.

[0013] The force adjusting groove is composed of a plurality of continuous grooves.

[0014] The plug connection nut and the plug shell are both provided with a clamping spring groove, and a clamping spring is installed between the two clamping spring grooves to axially limit and relatively rotate the plug connection nut and the plug shell.

[0015] The utility model discares the beneficial effects of:

[0016] 1, the utility model discloses the connecting mode has good compatibility, no matter what type bayonet plug or bayonet socket can use, does not affect its inside and is connected to the structure of the plug, simple operation does not need specific angle alignment, only needs to guarantee that the slider can slide into the avoidance slot, saves time, only needs to rotate the plug connecting nut to realize the quick lock connection after the plug, the avoidance slot plays the guiding role, and the slider reaches the guide rail position through the avoidance slot, and only needs to rotate a small angle and can be connected in place, saves the space, compared with the thread structure, the groove structure is more convenient to process, and the precision requirement is lower, and the cost is reduced.

[0017] 2, when locking, the convex block will be clamped between the plug connecting nut and the plug shell, prevent the axial movement of the plug connecting nut and the plug shell, make the locking more reliable, realize the anti-loose function. The two groups of convex blocks and recesses are oppositely arranged, which can further improve the locking reliability.

[0018] 3, the type of connector can be realized by increasing the ring sleeve. The color of the ring sleeve can show whether the connector is a power connector or a signal connector. The type of connector can also be determined by the presence or absence of the ring sleeve.

[0019] 4, by increasing the key and the limiting groove matched, the rotation is protected, the rotation stroke of the plug connecting nut is limited, and the elastic member is prevented from separating from the force adjusting groove.

[0020] 5, the protrusion on the elastic member is in contact with the continuous groove of the force adjusting groove, the compression amount of the protrusion on the elastic member is different through the groove on the force adjusting groove, which causes the change of the friction force between the elastic member and the plug cap, adjusts the rotation torque force of the plug cap, and realizes the prompt of the head seat locking and unlocking.

[0021] 6, the avoidance slot is designed to be in the same direction as the plug-in direction, and the structure of the avoidance slot is simplified. When plugging, it can be quickly guided to the guide rail position. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the prior art screw socket;

[0023] Figure 2 It is a schematic diagram of the prior art screw plug;

[0024] Figure 3 It is a schematic diagram of the utility model structure;

[0025] Figure 4 It is an explosion structure diagram of the utility model;

[0026] Figure 5 It is a plug shell structure diagram of the utility model;

[0027] Figure 6 The side view of the plug connecting nut of the utility model;

[0028] Figure 7 The structure schematic view of the plug connecting nut of the utility model;

[0029] Figure 8 The structure schematic view of the plug connecting nut of the utility model from another angle;

[0030] Figure 9 The structure schematic view of the utility model's bayonet socket;

[0031] Figure 10 The utility model's plug shell and ring sleeve's explosion view;

[0032] Figure 11 The utility model's locking state schematic view;

[0033] Figure 12 The A-A direction section view of Figure 11 ;

[0034] Figure 13 The B-B direction section view of Figure 11 ;

[0035] Figure 14 The utility model's unlocking state schematic view;

[0036] Figure 15 The A-A direction section view of Figure 14 ;

[0037] Figure 16 The B-B direction section view of Figure 14 ;

[0038] In the drawing,

[0039] 100, threaded socket, 1001, socket thread, 200, threaded plug, 2001, plug thread;

[0040] 1, bayonet plug, 101, plug connecting nut, 102, plug shell, 103, elastic member, 101-1, force adjusting groove, 101-2, sliding block, 102-1, elastic accommodating cavity, 103-1, protrusion;

[0041] 2, bayonet socket, 201, avoiding groove, 202, guide rail;

[0042] 3, groove, 4, protruding block, 5, ring sleeve, 6, key, 7, limiting groove, 8, mark, 9, clamping spring groove, 10, clamping spring, 11, keyway, 12, large key. DETAILED DESCRIPTION

[0043] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0044] It should be noted that the diagrams provided in the embodiments only schematically illustrate the basic concepts of the present application, and only show the components related to the present application in the diagrams, not according to the number, shape and size of the components in actual implementation. The shape, number and proportion of each component in actual implementation can be changed arbitrarily, and the component layout pattern can be more complex.

[0045] The structure, proportion, size, etc. shown in the drawings of the present specification are only used to understand and read the content disclosed in the specification by those skilled in the art, and are not used to limit the implementation conditions of the present application. Therefore, any modification of the structure, change of the proportion relationship or adjustment of the size, which does not affect the effects and purposes of the present application, should still fall within the scope of the technical content disclosed in the present application.

[0046] The orientations or positional relationships indicated by terms such as "upper", "lower", "left", "right", "intermediate", "vertical", "horizontal", "inner", "outer", "radial", "circumferential" in the present specification are based on the orientations or positional relationships shown in the drawings, and are only used to simplify the description, and therefore cannot be understood as indicating or implying that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0047] As Figures 3-10As shown, a connector with a quick locking function includes a bayonet plug 1 and a bayonet socket 2 connected in a mating manner. The bayonet plug 1 includes a plug connecting nut 101, a plug shell 102, and an elastic member 103. The plug connecting nut 101 is sleeved on the mating end of the plug shell 102 and can rotate relative to the plug shell 102 and be axially limited. The plug shell 102 is provided with an elastic accommodating cavity 102-1. The plug connecting nut 101 is provided with a force adjusting groove 101-1 in the circumferential direction. The elastic member 103 is pre-tightened and installed between the elastic accommodating cavity 102-1 and the force adjusting groove 101-1. The two ends of the force adjusting groove 101-1 are respectively an unlocking point C and a locking point D. A protrusion 103-1 on the elastic member 103 can move between the unlocking point C and the locking point D. Through the interaction between the protrusion 103-1 on the elastic member 103 and the force adjusting groove 101-1, the rotating torque in the head seat locking process is adjusted. The torque force when rotating from the locking point D to the unlocking point C is greater than the torque force when rotating from the unlocking point C to the locking point D, that is, the torque required from the locking point D to the unlocking point C is large, and the torque required from the unlocking point C to the locking point is small, so as to ensure the locking force during locking. The mating end of the bayonet socket 2 is provided with a communication avoiding groove 201 and a guide rail 202. The guide rail 202 is arranged along the circumferential direction of the bayonet socket 2. A sliding block 101-2 is arranged on the mating end of the plug connecting nut 101. With the mating of the bayonet plug 1 and the bayonet socket 2, the sliding block 101-2 reaches the guide rail 202 along the avoiding groove 201. The plug connecting nut 101 is rotated, the sliding block 101-2 rotates along the guide rail 202, the protrusion 103-1 of the elastic member 103 moves from the unlocking point C to the locking point D to achieve locking, and the plug connecting nut 101 is reversely rotated to retreat from the guide rail 202 to the avoiding groove 201 and exit from the avoiding groove 201 to achieve unlocking.

[0048] In order to improve the locking function, a groove 3 and a protrusion 4 are arranged in a matching manner between the plane where the plug shell 102 contacts the plug connecting nut 101. When the head seat is unlocked, the protrusion 4 slides along the groove arc to the lowest point of the groove 3. When the head seat is locked, the protrusion 4 slides along the groove arc to the highest point of the groove 3, and an interference fit is formed. The groove 3 is arranged on the plug connecting nut 101, and the protrusion 4 is arranged on the plug shell 102. Similarly, the groove 3 can also be arranged on the plug shell 102, and the protrusion 4 can be arranged on the plug connecting nut 101.

[0049] As shown in the figure, Figure 10 A ring sleeve 5 is arranged between the plug shell 102 and the plug connecting nut 101. The ring sleeve 5 is fixedly sleeved on the plug shell 102. The fixed form is that the ring sleeve 5 is between the plug connecting nut 101 and the plug shell 102. The ring sleeve 5 is provided with a large key 12, and the plug shell 102 is provided with a key groove 11. The large key 12 matches the key groove 11 to avoid the relative rotation of the ring sleeve 5 and the plug shell 102.

[0050] When the ring sleeve 5 is used, a matching groove 3 and protrusion 4 are arranged between the plane where the ring sleeve 5 is in contact with the plug connecting nut 101. When the head base is unlocked, the protrusion 4 slides along the groove arc to the lowest point of the groove 3, and the head base is in clearance fit. When the head base is locked, the protrusion 4 slides along the groove arc to the highest point of the groove 3, and the head base is in interference fit. As shown in Figure 11 、 Figure 14 , the groove 3 is arranged on the plug connecting nut 101, and the protrusion 4 is arranged on the ring sleeve 5. Similarly, the groove 3 can be arranged on the ring sleeve 5, and the protrusion 4 can be arranged on the plug connecting nut 101.

[0051] The matching groove 3 and protrusion 4 are provided in two groups, and the two groups are oppositely arranged to improve the locking force.

[0052] The plug shell 102 and the plug connecting nut 101 are provided with a matching key 6 and a limiting groove 7. The key 6 can slide in the limiting groove 7. The sliding stroke of the key 6 is the same as the moving stroke of the protrusion 103-1 in the force adjusting groove 101-1, so as to limit the rotating stroke of the plug connecting nut 101. When the head base is unlocked, the key 6 is in the B position of the limiting groove 7. When the head base is locked, the key 6 is in the A position of the limiting groove 7, so as to limit the rotating range of the plug connecting nut and the plug shell. The number of the key 6 and the limiting groove 7 can be one group or multiple groups. As shown in Figure 12 、 Figure 13 、 Figure 15 、 Figure 16 , the key 6 is arranged on the plug shell 102, and the limiting groove 7 is arranged on the plug connecting nut 101. Similarly, the key 6 can be arranged on the plug connecting nut 101, and the limiting groove 7 can be arranged on the plug shell 102.

[0053] The number of the avoiding grooves is not limited, and at least one avoiding groove is provided. The structure of the avoiding groove can be a thread or other features, which can realize the guiding function of the slider 101-2 on the bayonet plug. The optimal design form is that the extending direction of the avoiding groove 201 is consistent with the plug direction.

[0054] As shown in Figure 4 , the plug connecting nut 101 is provided with an identification 8 for indicating the rotating direction and the plug direction.

[0055] The force adjusting groove 101-1 is composed of multiple continuous grooves, forming concave-convex features. Different grooves have different compression amounts of the protrusion 103-1 of the elastic member. During the locking and unlocking process, the protrusion 103-1 on the elastic member 103 interacts with the concave-convex features on the force adjusting groove 101-1, so as to adjust the rotating torque.

[0056] The plug connecting nut 101 and the plug shell 102 are both provided with a snap spring groove 9. The axial position of the plug connecting nut 101 and the plug shell 102 is limited and relatively rotated by installing a snap spring 10 between the two snap spring grooves 9.

[0057] As shown in Figure 12 , Figure 13 the head seat locking process: the key on the plug shell 102 is in the B position on the plug connecting nut 101; the bayonet plug 1 is inserted into the bayonet socket 2, the slider 101-2 on the plug connecting nut 101 is guided by the avoiding slot 201 on the bayonet socket 2, reaches the guide rail 202 position of the bayonet socket 2, and by rotating the plug connecting nut 101, the slider 101-2 rotates a certain angle along the guide rail 202, at the same time, the key 6 on the plug shell 102 moves from the B position on the plug connecting nut 101 to the A position, the protrusion 103-1 of the elastic member 103 moves from the C position on the force adjusting slot 101-1 of the plug connecting nut 101 to the D position, the protruding block 4 moves from the E position to the F position, and locking is achieved.

[0058] As shown in Figure 15 , Figure 16 the head seat unlocking process: the key 6 on the plug shell 102 is in the A position on the plug connecting nut 101; the plug connecting nut 101 is rotated, the slider 101-2 rotates a certain angle along the guide rail 202 and reaches the avoiding slot 201 position, at the same time, the key 6 on the plug shell 102 moves from the A position on the plug connecting nut 101 to the B position, the protrusion 103-1 of the elastic member 103 moves from the D position on the force adjusting slot 101-1 of the plug connecting nut 101 to the C position, the protruding block 4 moves from the F position to the E position, the bayonet plug 1 and the bayonet socket 2 are axially separated, and unlocking is achieved.

[0059] The above is only a preferred example of the utility model and is not used for limiting or defining the utility model. For researchers or technicians in the field, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope declared by the utility model.

Claims

1. A connector with a quick locking function, comprising a bayonet plug (1) and a bayonet socket (2) which are connected in a mating plug-in connection, characterized in that: The bayonet plug (1) comprises a plug connecting nut (101), a plug shell (102) and an elastic member (103), the plug connecting nut (101) is sleeved on the plug-in end of the plug shell (102) and can rotate relative to the plug shell (102) and be axially limited, the plug shell (102) is provided with an elastic accommodating cavity (102-1), the plug connecting nut (101) is provided with a force adjusting groove (101-1) in the circumferential direction, the elastic member (103) is pre-tightened and installed between the elastic accommodating cavity (102-1) and the force adjusting groove (101-1), the two ends of the force adjusting groove (101-1) are respectively an unlocking point C and a locking point D, the protrusion (103-1) on the elastic member (103) can move between the unlocking point C and the locking point D, and the torque force when rotating from the locking point D to the unlocking point C is greater than the torque force when rotating from the unlocking point C to the locking point D; the plug-in end of the bayonet socket (2) is provided with an avoidance groove (201) and a guide rail (202) in communication, the guide rail (202) is arranged along the circumferential direction of the bayonet socket (2), the plug-in end of the plug connecting nut (101) is provided with a sliding block (101-2), with the plug-in of the bayonet plug (1) and the bayonet socket (2), the sliding block (101-2) reaches the guide rail (202) along the avoidance groove (201), the plug connecting nut (101) is rotated, the sliding block (101-2) rotates along the guide rail (202), the protrusion (103-1) of the elastic member (103) is moved from the unlocking point C to the locking point D to realize locking, and reverse rotation realizes unlocking.

2. The connector with the quick locking function as claimed in claim 1, characterized in that: The plane, where the plug shell (102) and the plug connecting nut (101) are in contact, is provided with a groove (3) and a convex block (4) matched with each other, when unlocking, the convex block (4) slides along the groove arc surface to the lowest point of the groove (3), and when locking, the convex block (4) slides along the groove arc surface to the highest point of the groove (3), and the two are in interference fit.

3. The connector with the quick locking function as claimed in claim 1, characterized in that: The ring sleeve (5) is arranged between the plug shell (102) and the plug connecting nut (101).

4. The connector with the quick locking function as claimed in claim 2, characterized in that: The plane, where the ring sleeve (5) and the plug connecting nut (101) are in contact, is provided with a groove (3) and a convex block (4) matched with each other, when unlocking, the convex block (4) slides along the groove arc surface to the lowest point of the groove (3), and when locking, the convex block (4) slides along the groove arc surface to the highest point of the groove (3), and the two are in interference fit.

5. The connector with the quick locking function as claimed in claim 2 or 4, characterized in that: The groove (3) and the convex block (4) matched with each other are provided with two groups, and the two groups are oppositely arranged.

6. The connector with the quick locking function as claimed in claim 1, characterized in that: The plug shell (102) and the plug connecting nut (101) are provided with a key (6) and a limiting groove (7) matched with each other, the key (6) can slide in the limiting groove (7), and the sliding stroke of the key (6) is the same as the moving stroke of the protrusion (103-1) in the force adjusting groove (101-1).

7. The connector with the quick locking function as claimed in claim 1, characterized in that: The extension direction of the avoidance groove (201) is consistent with the plug-in direction.

8. The connector with the quick locking function as claimed in claim 1, characterized in that: The surface of the plug connecting nut (101) is provided with an identification (8) for indicating the rotating direction and the plug-in direction.

9. The connector with the quick locking function as claimed in claim 1, characterized in that: The force adjusting groove (101-1) is composed of a plurality of continuous grooves, and different grooves have different compression amounts for the protrusion of the elastic member.

10. The connector with the quick locking function as claimed in claim 1, characterized in that: The plug connecting nut (101) and the plug shell (102) are both provided with a snap spring groove (9), and the axial limiting and relative rotation of the plug connecting nut (101) and the plug shell (102) are realized by installing a snap spring (10) between the two snap spring grooves (9).

Images