A first inner connector lock assembly for a rewind spool assembly

Abstract

The utility model discloses a first inner connector locking assembly for rewind shaft assembly device, including drawing lock pin rod, jacks and elevating drive part, the top pipe wall of drawing lock pin rod is equipped with a plurality of spherical lock catch one week, and the top of drawing lock pin rod is used to be in the through -going channel in the middle part of first inner connector from the bottom end of outer tube, wherein the through -going channel includes upper through -going channel section and lower through -going channel section, and the connecting place between upper through -going channel section and lower through -going channel section forms the step face, and the top rod includes first rod section, taper transition section and second rod section in proper order from top to bottom, and the upper portion of top rod is inserted in drawing lock pin rod and is fixedly connected with the output of elevating drive part in lower extreme, and a plurality of spherical lock catch is through with second rod section contact and is stretched out from the top pipe wall of drawing lock pin rod and is equipped with on the step face. The utility model can lock the first inner connector in the outer tube in rewind shaft, so as to facilitate the first inner connector to be drawn to the correct height position relative to outer tube subsequently.

Description

Technical Field

[0001] This utility model belongs to the field of rewind shaft assembly technology, specifically relating to a first inner connector locking component for a rewind shaft assembly device. Background Technology

[0002] In a car sunroof with a curtain, the main function of the rewind shaft is to roll up and unroll the curtain. When the curtain needs to be rolled up, the motor drives the rewind shaft to rotate in the reverse direction so that the curtain wound on the rewind shaft gradually unfolds and covers the sunroof glass. When the curtain needs to be rolled up, the motor drives the rewind shaft to rotate in the forward direction so that the curtain is rolled back onto the rewind shaft.

[0003] For a vertically arranged rewind shaft, the rewind shaft includes an aluminum outer tube 101. A first inner bushing 102 is fixed to the lower end of the outer tube 101. A first inner connector 103 is provided in the lower part of the outer tube 101. A second inner bushing 104 is fixed to the upper end of the outer tube 101. A second inner connector 105 passes through the second inner bushing 104. The second inner connector 105 can rotate relative to the second inner bushing 104 under external force, and there is no relative displacement between the second inner connector 105 and the second inner bushing 104 in the vertical direction. A spindle spring 106 and a plastic tube 108 sleeved on the outside of the spindle spring 106 are also provided inside the outer tube 101. The lower end of the spindle spring 106 is fixedly connected to the first inner connector 103, and the upper end of the spindle spring 106 is fixedly connected to the second inner connector 105. (See...) Figure 1 and Figure 2 ,in Figure 1 and Figure 2 The rewind shafts are arranged horizontally.

[0004] Due to the sunroof assembly process, the spindle spring 106 inside the rewind shaft needs to be pre-loaded with a certain amount of stored torque to drive the unfolded curtain to wrap around the outer tube 101 of the rewind shaft from the unfolded state, so as to complete the next step of sunroof assembly. Therefore, the rewind shaft needs to be assembled and the spindle spring 106 needs to be pre-tightened by the rewind shaft assembly device. Before pre-tightening the spindle spring 106, the first inner connector 103 needs to be fixed together with the outer tube 101. Before fixing the first inner connector 103 to the outer tube 101, the first inner connector 103 is not in the correct height position relative to the outer tube 101 because the spindle spring 106 is in the contracted state. Therefore, the first inner connector 103 needs to be pulled to the correct height position relative to the outer tube 101 and the spindle spring 106 needs to be vertically stretched to a certain length. Therefore, a component for locking the first inner connector 103 is needed. Utility Model Content

[0005] In view of the above-mentioned deficiencies of the prior art, the present invention provides a first inner connector locking assembly for a rewinding shaft assembly device, which can lock the first inner connector inside the outer tube of the rewinding shaft so as to facilitate the subsequent pulling of the first inner connector relative to the outer tube to the correct height position.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A locking assembly for a first inner connector in a rewind shaft assembly includes a pull-out locking pin, a push rod, and a lifting drive component. The pull-out locking pin is a hollow rod with openings at both the top and bottom. Multiple spherical latches are secured around the top of the pin. The top of the pin extends from the bottom opening of the outer tube of the rewind shaft into a through-channel in the middle of the first inner connector. The bottom of the pin is positioned below the outer tube at a constant height. The through-channel includes an upper through-channel. The upper and lower through-channel segments have a diameter smaller than that of the upper through-channel segment. The connection between the upper and lower through-channel segments forms a stepped surface. The top rod, from top to bottom, includes a first rod segment, a tapered transition segment, and a second rod segment with a diameter larger than that of the first rod segment. The upper part of the top rod is inserted into the pull-out locking pin and the lower end is fixedly connected to the output end of the lifting drive component. Multiple spherical latches extend from the top tube wall of the pull-out locking pin through contact with the second rod segment and are used to lock onto the stepped surface.

[0008] Furthermore, the diameters of the multiple spherical latches are the same.

[0009] Furthermore, multiple spherical latches are evenly distributed around the top of the pull-out locking pin.

[0010] Furthermore, the lifting drive component is a pull-lock pin cylinder, and the lower end of the push rod is fixedly connected to the upper end of the piston rod of the pull-lock pin cylinder.

[0011] Furthermore, the bottom end of the pull-lock pin rod is placed on the cylinder body of the pull-lock pin cylinder.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] The first inner connector locking assembly for the rewinding shaft assembly device of this utility model includes a pull-out locking pin, a top rod, and a lifting drive component. Multiple spherical buckles are secured around the top wall of the pull-out locking pin. The top of the pull-out locking pin extends from the bottom of the outer tube into a through-channel in the middle of the first inner connector. The through-channel includes an upper through-channel segment and a lower through-channel segment with a diameter smaller than that of the upper through-channel segment. A stepped surface is formed at the connection between the upper and lower through-channel segments. The top rod, from top to bottom, includes a first rod segment, a tapered transition segment, and a second rod segment with a diameter larger than that of the first rod segment. The upper part of the top rod is inserted into the pull-out locking pin, and its lower end is fixedly connected to the output end of the lifting drive component. Multiple spherical buckles extend from the top wall of the pull-out locking pin and are secured on the stepped surface by contacting the second rod segment. When the output end of the lifting drive is in its initial position, the first segment of the push rod contacts multiple ball-shaped latches. These ball-shaped latches are not subjected to compressive force and are located within the top tube wall of the pull-lock pin. By controlling the movement of the lifting drive, the output end of the lifting drive rises vertically and drives the push rod to move vertically upward relative to the pull-lock pin. This causes the second segment of the push rod to contact multiple ball-shaped latches. Due to the compressive force of the second segment, the ball-shaped latches extend from the top tube wall of the pull-lock pin and lock onto the step surface, thereby locking the first inner connector. This facilitates the subsequent pulling of the first inner connector relative to the outer tube to the correct height position and the vertical stretching of the spindle spring to a certain length. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the split structure of the rewind shaft;

[0015] Figure 2 This is a schematic diagram of the internal structure of the rewind shaft;

[0016] Figure 3 This is a cross-sectional view of the first inner connector locking assembly of the rewinding shaft assembly device in this utility model when it is engaged with the rewinding shaft and in the initial position.

[0017] Figure 4 This is a cross-sectional view of the first inner connector locking assembly of the rewinding shaft assembly device in this utility model when it is engaged with the rewinding shaft and in the working position.

[0018] Explanation of reference numerals in the figure: 101, outer tube; 102, first inner bushing; 103, first inner connector; 10301, upper through-channel segment; 10302, lower through-channel segment; 10303, stepped surface; 104, second inner bushing; 105, second inner connector; 106, spindle spring; 108, plastic tube; 4012, pull-out locking pin; 4013, top rod; 401301, first rod segment; 401302, tapered transition segment; 401303, second rod segment; 4015, spherical lock. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0020] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0022] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] like Figure 3 and Figure 4As shown, a first inner connector locking assembly for a rewind shaft assembly device includes a pull-out locking pin 4012, a push rod 4013, and a lifting drive component. The pull-out locking pin 4012 is a hollow rod with openings at both the top and bottom. Multiple spherical latches 4015 are secured around the top wall of the pull-out locking pin 4012. The top of the pull-out locking pin 4012 extends from the bottom opening of the outer tube 101 of the rewind shaft into the inner tube 101 and into a through-channel in the middle of the first inner connector 103. The bottom of the pull-out locking pin 4012 is below the outer tube 101 and its height remains constant. The through-channel includes an upper through-channel segment 10301 and a segment with a diameter smaller than the upper through-channel segment. The lower through-channel segment 10302 with a diameter of 10301 forms a stepped surface 10303 at the connection between the upper through-channel segment 10301 and the lower through-channel segment 10302. The top rod 4013 includes, from top to bottom, a first rod segment 401301, a tapered transition segment 401302, and a second rod segment 401303 with a diameter larger than that of the first rod segment 401301. The upper part of the top rod 4013 is inserted into the pull-out locking pin 4012 and the lower end is fixedly connected to the output end of the lifting drive component. Multiple spherical latches 4015 extend from the top tube wall of the pull-out locking pin 4012 through contact with the second rod segment 401303 and are used to lock onto the stepped surface 10303.

[0024] When the output end of the lifting drive is in the initial position, the first segment 401301 of the top rod 4013 contacts multiple ball-shaped latches 4015. Since the multiple ball-shaped latches 4015 are not subjected to compressive force, they are located inside the top tube wall of the pull-out locking pin 4012. By controlling the movement of the lifting drive, the output end of the lifting drive rises vertically and drives the top rod 4013 to move vertically upward relative to the pull-out locking pin 4012. This causes the second segment 401303 of the top rod 4013 to contact multiple ball-shaped latches 4015. Due to the compressive force of the second segment 401303, the multiple ball-shaped latches 4015 extend from the top tube wall of the pull-out locking pin 4012 and are locked on the step surface 10303 to lock the first inner connector 103. This facilitates the subsequent pulling of the first inner connector 103 relative to the outer tube 101 to the correct height position and the vertical stretching of the spindle spring 106 to a certain length.

[0025] When the first inner connector 103 is pulled to the correct height relative to the outer tube 101 and the outer tube 101 is fixed together with the first inner connector 103, the lifting drive is controlled to make the output end of the lifting drive descend vertically and drive the top rod 4013 to move vertically downward relative to the pull-out locking pin 4012, thereby making the first rod segment 401301 of the top rod 4013 contact with multiple ball buckles 4015. Since the multiple ball buckles 4015 are not subjected to compressive force, they retract from the step surface 10303 into the top tube wall of the pull-out locking pin 4012.

[0026] In one embodiment, the plurality of ball-shaped latches 4015 have the same diameter. Preferably, the plurality of ball-shaped latches 4015 are evenly distributed around the top of the pull-out locking pin 4012. This provides a more stable lock for the first inner connector 103.

[0027] In one embodiment, the lifting drive is a pull-lock pin cylinder, and the lower end of the push rod 4013 is fixedly connected to the upper end of the piston rod of the pull-lock pin cylinder.

[0028] When the piston rod of the pull-lock pin cylinder is in the retracted state, the first segment 401301 of the push rod 4013 contacts multiple spherical latches 4015. Since the multiple spherical latches 4015 are not subjected to compressive force, they are located inside the top tube wall of the pull-lock pin rod 4012. By controlling the action of the pull-lock pin cylinder, the piston rod of the pull-lock pin cylinder extends and drives the push rod 4013 to move vertically upward relative to the pull-lock pin rod 4012. This causes the second segment 401303 of the push rod 4013 to contact multiple spherical latches 4015. Due to the compressive force of the second segment 401303, the multiple spherical latches 4015 extend from the top tube wall of the pull-lock pin rod 4012 and are locked on the stepped surface 10303, thereby locking the first inner connector 103.

[0029] When the first inner connector 103 is pulled to the correct height relative to the outer tube 101 and the outer tube 101 is fixed together with the first inner connector 103, the piston rod of the pull-lock pin cylinder is retracted by controlling the action of the pull-lock pin cylinder and driving the push rod 4013 to move vertically downward relative to the pull-lock pin rod 4012. This causes the first rod section 401301 of the push rod 4013 to contact multiple ball buckles 4015. Since the multiple ball buckles 4015 are not subjected to compressive force, they retract from the stepped surface 10303 into the top tube wall of the pull-lock pin rod 4012.

[0030] Preferably, the bottom end of the pull-out locking pin 4012 is placed on the cylinder body of the pull-out locking pin cylinder.

[0031] In summary, the first inner connector locking assembly for the rewinding shaft assembly device of this utility model can lock the first inner connector 103, thereby facilitating the subsequent pulling of the first inner connector 103 relative to the outer tube 101 to the correct height position and the vertical stretching of the spindle spring 106 to a certain length.

[0032] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A first inner connector locking assembly for a rewinding shaft assembly device, characterized in that: The device includes a pull-out locking pin (4012), a push rod (4013), and a lifting drive component. Multiple spherical latches (4015) are secured around the top wall of the pull-out locking pin (4012). The top of the pull-out locking pin (4012) is used to extend from the bottom of the outer tube (101) into a through-channel in the middle of the first inner connector (103). The through-channel includes an upper through-channel segment (10301) and a lower through-channel segment (10302) with a diameter smaller than that of the upper through-channel segment (10301). The upper through-channel segment (10301) and the lower through-channel segment (10302) are connected... The connection between the sections forms a stepped surface (10303). The top rod (4013) includes, from top to bottom, a first rod segment (401301), a tapered transition section (401302), and a second rod segment (401303) with a diameter larger than that of the first rod segment (401301). The upper part of the top rod (4013) is inserted into the pull-out locking pin (4012), and the lower end is fixedly connected to the output end of the lifting drive component. Multiple ball-shaped latches (4015) extend from the top tube wall of the pull-out locking pin (4012) and are locked on the stepped surface (10303) by contacting the second rod segment (401303).

2. The first inner connector locking assembly for a rewinding shaft assembly device according to claim 1, characterized in that: The multiple ball-shaped latches (4015) have the same diameter.

3. A first inner connector locking assembly for a rewinding shaft assembly device according to claim 2, characterized in that: Multiple ball-shaped latches (4015) are evenly distributed around the top tube wall of the pull-out locking pin (4012).

4. A first inner connector locking assembly for a rewinding shaft assembly device according to claim 1, characterized in that: The lifting drive component is a pull-lock pin cylinder, and the lower end of the push rod (4013) is fixedly connected to the upper end of the piston rod of the pull-lock pin cylinder.

5. A first inner connector locking assembly for a rewinding shaft assembly device according to claim 4, characterized in that: The bottom end of the pull-out locking pin rod (4012) is placed on the cylinder body of the pull-out locking pin cylinder.

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