Positionable living hinge

Abstract

The utility model relates to a kind of movable connector of positioning, including upper connecting piece and lower connecting piece, upper and lower connecting piece are hinged to each other, and positioning adjusting mechanism is set in hinged place, the separation groove of upper connecting piece lower end separates the upper connecting rod lower end into front connecting part and rear connecting part, lower connecting piece upper end is equipped with intermediate connecting part, intermediate connecting part is housed in separation groove, there is a shaft hole through three connecting parts, the positioning adjusting mechanism include movable pin shaft and the inner spline of the shaft hole inner wall of front connecting part and intermediate connecting part, movable pin shaft side wall is equipped with the outer spline matched with inner spline, movable pin shaft can be axially moved in shaft hole to realize the combination or separation of outer spline and the inner spline on the shaft hole inner wall of intermediate connecting part, and axial positioning structure is set between movable pin shaft and front connecting part;The utility model's movable connector can be freely rotated while also angle can be locked, can be freely selected according to use scene, with the characteristics of reasonable structure and convenient use.

Description

Technical Field

[0001] This utility model relates to a movable connector, specifically a positionable movable connector. Background Technology

[0002] Currently, mop heads and handles are typically connected via either a movable or a fixed connector. When connected via a fixed connector, the angle between the mop handle and head is fixed and cannot be adjusted or rotated, making some parts inconvenient to clean. On the other hand, when connected via a movable connector, the mop handle can rotate freely relative to the mop head. However, since the movable connector cannot be locked, it can be inconvenient in situations where a fixed angle is required for cleaning. Utility Model Content

[0003] The purpose of this utility model is to provide a positionable movable connector that can rotate freely and also lock at an angle, allowing for flexible selection based on the usage scenario. It features a reasonable structure and convenient use.

[0004] To achieve the above objectives, the following technical solution is adopted: A positionable movable connector includes an upper connector and a lower connector, characterized in that: the upper and lower connectors are hinged to each other, and a positioning adjustment mechanism is provided at the hinge; a shaft hole penetrating the hinge is provided on the hinge portion between the lower end of the upper connector and the upper end of the lower connector, and the positioning adjustment mechanism is disposed in the shaft hole; the positioning adjustment mechanism includes a movable pin and an internal spline provided on the inner wall of the shaft hole, and an external spline provided on the side wall of the movable pin to cooperate with the internal spline; the movable pin can move axially within the shaft hole to realize the engagement or disengagement of the external spline with the internal spline on the inner wall of the shaft hole; an axial positioning structure is provided between the movable pin and the hinge portion.

[0005] The hinge portion at the lower end of the upper connector has a partition groove, which divides the lower end of the upper connecting rod into a front connecting portion and a rear connecting portion. The upper end of the lower connector has an intermediate connecting portion that mates with the partition groove. The intermediate connecting portion is housed within the partition groove and is held in the middle by the front and rear connecting portions. Shaft holes penetrating the three connecting portions are provided on the front, rear, and intermediate connecting portions. The positioning and adjustment mechanism is disposed within the shaft holes. The positioning and adjustment mechanism includes a movable pin and internal splines on the inner walls of the shaft holes of the front and intermediate connecting portions. The side wall of the movable pin has external splines that mate with the internal splines. The movable pin can move axially within the shaft holes to engage or disengage the external splines with the internal splines on the inner wall of the shaft hole of the intermediate connecting portion. An axial positioning structure is provided between the movable pin and the front connecting portion.

[0006] The outer diameter of the movable pin matches the inner diameter of the shaft hole of the upper connecting part. The axial positioning structure includes several positioning protrusions on the side wall of the movable pin, and a positioning part that cooperates with the positioning protrusions is provided on the inner wall of the shaft hole of the front connecting part.

[0007] The positioning part is an elastic part provided on the inner wall of the shaft hole of the front connecting part at the position corresponding to the positioning protrusion.

[0008] The elastic part is formed by a circumferential groove opened to one side at the end of the spline groove in the front connecting part.

[0009] The movable pin includes a pin body and a connecting pin cap. The front end of the pin body has a positioning lock cap, and the rear end of the pin body has an axial connection hole. The side wall of the pin body has a fastening hole that communicates with the axial connection hole. The front end of the connecting pin cap has a buckle. The buckles of the pin body and the connecting pin cap pass through the shaft holes on both sides of the front and rear connecting parts, respectively. The buckles extend into the axial connection hole and fasten onto the fastening hole. The positioning lock cap and the connecting pin cap provide axial limit for the movable pin at both ends of the shaft hole.

[0010] This utility model incorporates a positioning adjustment mechanism at the hinge of the upper and lower connecting parts. The positioning adjustment mechanism can lock and allow free rotation of the upper and lower connecting parts simply by adjusting the axial position of the movable pin within the shaft hole. The required functions can be selected according to the actual usage scenario, and it features a reasonable structure and convenient use. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded structural diagram (I) of the present invention; Figure 3 This is a schematic diagram of the exploded structure of the present invention (III); Figure 4 This is a schematic diagram (a) of the structure of the upper connecting piece and the pin body of this utility model. Figure 5 This is a schematic diagram (II) of the structure of the upper connecting piece and the pin body of this utility model; Figure 6 This is a structural schematic diagram (a) of the lower connector and movable pin of this utility model. Figure 7 This is a schematic diagram (II) of the structure of the lower connector and the movable pin of this utility model. Detailed Implementation

[0012] like Figure 1-7As shown, a positionable movable connector includes an upper connector 1 and a lower connector 2, which are hinged together. A positioning adjustment mechanism is provided at the hinge. The hinge portion at the lower end of the upper connector 1 has a partition groove 11, which divides the lower end of the upper connector 1 into a front connecting portion 12 and a rear connecting portion 13. The upper end of the lower connector 2 has an intermediate connecting portion 21 that mates with the partition groove 11. The intermediate connecting portion 21 is housed in the partition groove 11 and is held in the middle by the front and rear connecting portions. Shaft holes penetrating the three connecting portions are provided on the front and rear connecting portions and the intermediate connecting portion 21. The positioning adjustment mechanism is disposed in the shaft holes. The positioning adjustment mechanism includes a movable pin 3 and internal splines 52 formed on the inner walls of the shaft holes of the front connecting portion 12 and the intermediate connecting portion 21. The side wall of shaft 3 is provided with an external spline 51 that mates with the internal spline; the movable pin 3 includes a pin body 31 and a connecting pin cap 32. The front end of the pin body 31 has a positioning lock cap 33, and the rear end of the pin body 31 has an axial connection hole 34. The side wall of the pin body 31 has a fastening hole 35 that communicates with the axial connection hole. The front end of the connecting pin cap 32 is provided with a buckle 36. The pin body 31 and the buckle 36 of the connecting pin cap pass through the shaft holes on both sides of the front and rear connecting parts, respectively. The buckle 36 extends into the axial connection hole 34 and fastens onto the fastening hole 35. The positioning lock cap 33 and the connecting pin cap 32 provide axial limit for the movable pin 3 at both ends of the shaft hole. The movable pin 3 can move axially within the shaft hole to enable the external spline 51 to engage or disengage with the internal spline 52 on the inner wall of the shaft hole of the intermediate connecting part 21.

[0013] The outer diameter of the movable pin 3 matches the inner diameter of the shaft hole of the upper connecting part 12. An axial positioning structure is provided between the movable pin 3 and the front connecting part 12. The axial positioning structure includes several positioning protrusions 53 on the side wall of the movable pin 3. An elastic part is provided at the position of the positioning protrusions 53 on the inner wall of the shaft hole of the front connecting part 12. The elastic part is a circumferential groove 54 opened to one side at the end of the groove of the spline 52 in the front connecting part 12.

[0014] This invention features a movable pin 3 at the hinge of the upper and lower connecting parts. The movable pin 3 is axially positioned by a positioning protrusion 53 cooperating with an elastic part. The outer spline 51 of the movable pin 3 is always engaged with the inner spline 52 inside the shaft hole of the upper connecting part. Axial movement of the movable pin 3 can achieve engagement and disengagement of the outer spline 51 with the inner spline 52 on the inner wall of the shaft hole of the intermediate connecting part 21, thereby locking and separating the upper and lower connecting parts. When the inner and outer splines are locked, the upper and lower connecting parts are fixed and cannot rotate relative to each other. When the inner and outer splines are separated, the upper and lower connecting parts can rotate relative to each other freely. The engagement and disengagement can be achieved simply by axially pushing the movable pin 3, making the operation very convenient.

[0015] This utility model provides an elastic part at the position of the positioning protrusion 53 on the inner wall of the shaft hole of the front connecting part 12. The elastic part is a circumferential groove 54 opened to one side at the end of the groove of the spline 52 in the front connecting part 12. The circumferential groove 54 makes the part of the inner wall of the shaft hole corresponding to the positioning protrusion 53 elastic, so that the axial push of the movable pin 3 is smoother and the gear position is clearer.

Claims

1. A positionable movable connector, comprising an upper connector (1) and a lower connector (2), characterized in that: The upper and lower connecting parts are hinged to each other, and a positioning adjustment mechanism is provided at the hinge. The hinge part of the lower end of the upper connecting part (1) and the upper end of the lower connecting part (2) is provided with a shaft hole that passes through the hinge part. The positioning adjustment mechanism is set in the shaft hole. The positioning adjustment mechanism includes a movable pin (3) and an internal spline (52) opened on the inner wall of the shaft hole. The side wall of the movable pin (3) is provided with an external spline (51) that cooperates with the internal spline (52). The movable pin (3) can move axially in the shaft hole to realize the engagement or separation of the external spline (51) and the internal spline (52) on the inner wall of the shaft hole. An axial positioning structure is provided between the movable pin (3) and the hinge part.

2. The positionable movable connector as described in claim 1, characterized in that: The lower end of the upper connector (1) has a partition groove (11) at its hinge portion. The partition groove (11) divides the lower end of the upper connector (1) into a front connection portion (12) and a rear connection portion (13). The upper end of the lower connector (2) has an intermediate connection portion (21) that mates with the partition groove (11). The intermediate connection portion (21) is housed within the partition groove (11). The device is sandwiched between the front and rear connecting parts. A shaft hole is provided on the front, rear and middle connecting parts (21) to pass through the three connecting parts. The positioning adjustment mechanism is set in the shaft hole. The positioning adjustment mechanism includes a movable pin (3) and an internal spline (52) opened on the inner wall of the shaft hole of the front connecting part (12) and the middle connecting part (21). The side wall of the movable pin (3) is provided with an external spline (51) that cooperates with the internal spline. The movable pin (3) can move axially in the shaft hole to realize the engagement or separation of the external spline (51) and the internal spline (52) on the inner wall of the shaft hole of the middle connecting part (21). An axial positioning structure is provided between the movable pin (3) and the front connecting part (12).

3. A positionable movable connector as described in claim 2, characterized in that: The outer diameter of the movable pin (3) matches the inner diameter of the shaft hole of the front connecting part (12). The axial positioning structure includes a number of positioning protrusions (53) on the side wall of the movable pin (3) and a positioning part that cooperates with the positioning protrusions (53) on the inner wall of the shaft hole of the front connecting part (12).

4. A positionable movable connector as described in claim 3, characterized in that: The positioning part is an elastic part provided at the position of the positioning protrusion (53) on the inner wall of the shaft hole of the front connecting part (12).

5. A positionable movable connector as described in claim 4, characterized in that: The elastic part is formed by a circumferential groove (54) opened to one side at the end of the groove of the spline (52) in the front connecting part (12).

6. A positionable movable connector as described in claim 2, characterized in that: The movable pin (3) includes a pin body (31) and a connecting pin cap (32). The front end of the pin body (31) has a positioning lock cap (33), and the rear end of the pin body (31) has an axial connection hole (34). The side wall of the pin body (31) has a fastening hole (35) that communicates with the axial connection hole. The front end of the connecting pin cap (32) is provided with a buckle (36). The buckles (36) of the pin body (31) and the connecting pin cap pass through the shaft holes on both sides of the front and rear connecting parts, respectively. The buckles (36) extend into the axial connection hole (34) and fasten onto the fastening hole (35). The positioning lock cap (33) and the connecting pin cap (32) provide axial limit for the movable pin (3) at both ends of the shaft hole.

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