A locking structure and sunshade retractor

Abstract

A locking structure and a sunshade winder, the sunshade winder comprising a winding and rotating fixed seat, a locking limit seat, a locking switch and a locking end seat, the locking switch comprising a pushing seat, a limit portion and a spring fixed seat, the lower side of the limit portion is provided with a hook-shaped protruding limit portion, the protruding limit block of the locking switch is against the winding and rotating fixed seat, the locking structure is inside the sunshade winder, and the winding and rotating fixed seat is fixed by the protruding limit portion, so that the sunshade can be wound up or partially wound up as needed, and the locking structure will not be worn out even after long-term use. The locking structure is inside the locking end seat to prevent the locking structure from falling off, thereby effectively increasing the service life of the sunshade.

Description

Technical Field

[0001] The invention relates to the technical field of locking structures inside sunshade retractors, in particular to a locking structure and a sunshade retractor. Background Art

[0002] The sunshade is a device installed inside the windshield of a car to achieve the functions of shading, heat insulation, privacy protection, etc. In the existing sunshade, a ratchet is generally arranged on the winding shaft, and a ratchet switch is arranged outside the ratchet to stop the rotation of the ratchet to stop the sunshade from winding up. The ratchet switch is generally connected to the winding shaft for rotation. After long-term use, the connection between the ratchet switch and the winding shaft and the contact surface between the ratchet switch and the ratchet are seriously worn, which makes it easy for the ratchet switch to fall off the winding shaft and the sunshade cannot be fixed. This is a common disadvantage of externally locked sunshades. The locking structure on the sunshade on the market is generally a structure that locks from the outside, which is not conducive to the long-term use of the sunshade. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a locking structure and a sunshade retractor.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a locking structure, including a locking switch, the locking switch includes a pushing seat, a limiting part and a spring fixing seat, the pushing seat is arranged below the limiting part, the spring fixing seat is arranged at a central position above the limiting part, a hook-shaped protruding limiting part is provided on the lower side of the limiting part, and the left and right sides of the limiting part and the left side of the protruding limiting part are movable limiting parts.

[0005] As a further improvement of the present invention: the locking switch is integrally formed, and the protruding limiting portion protrudes outside the limiting portion.

[0006] As a further improvement of the present invention: the four corners of the limiting part are provided with movable recesses, and the center of the limiting part is provided with a connecting hole that penetrates the limiting part from the front and back directions.

[0007] As a further improvement of the present invention: the pushing seat is L-shaped, and a locking spring is provided on the spring fixing seat.

[0008] As a further improvement of the present invention: the limiting part of the locking switch is placed on the locking limiting seat, the locking limiting seat is provided with a fixed column, a movable limiting block, a locking groove and a fixed limiting groove, and the protruding limiting part is arranged on the fixed limiting groove.

[0009] As a further improvement of the present invention: the fixing columns are arranged on the left and right sides above the locking groove and on the left and right sides below the movable limiting block.

[0010] As a further improvement of the present invention: the position of the movable recess corresponds to the position of the fixed column, the height of the movable recess at the upper part of the limiting part from the top of the limiting part is not less than the diameter of the fixed column, and the movable recess at the lower part of the limiting part is semicircular.

[0011] As a further improvement of the present invention: the length of the limiting portion is the same as the diameter of the locking groove, the hollow length between the fixed limiting grooves is greater than the length of the protruding limiting portion, and the protruding limiting portion can move from the fixed limiting groove.

[0012] As a further improvement of the present invention: the movable limiting parts on the left and right sides of the limiting part are arranged on the straight walking side in the locking groove, and the movable limiting part protruding on the left side of the limiting part below the limiting part is arranged on the left side of the fixed limiting groove at the bottom end of the locking groove.

[0013] A sunshade retractor, characterized in that it includes a reeling and rotating fixed seat, a locking limit seat, a locking switch and a locking end seat, the reeling and rotating fixed seat includes a sunshade connecting seat and a reeling and fixed seat, the sunshade connecting seat is fixedly connected to the reeling and fixed seat, a locking limit seat and a locking switch are provided in the reeling and fixed seat, the reeling and fixed seat, the locking limit seat and the locking switch are arranged in the locking end seat, and the protruding limit portion of the locking switch abuts against the reeling and rotating fixed seat.

[0014] As a further improvement of the present invention: a limit seat groove is provided in the winding fixed seat, a positioning groove is provided in the limit seat groove, the locking limit seat is arranged in the limit seat groove, and the protruding limit portion of the locking switch passes through the fixed limit groove and abuts against the positioning groove.

[0015] As a further improvement of the present invention: the number of the positioning grooves is two, and the positions of the two positioning grooves are opposite to each other in the groove of the limiting seat.

[0016] As a further improvement of the present invention: the locking limit seat is cylindrical as a whole, the limit seat groove is circularly hollowed out, and the circular diameter of the locking limit seat cylinder is the circularly hollowed out diameter of the limit seat groove.

[0017] As a further improvement of the present invention: the locking spring above the locking switch abuts between the locking switch and the inner wall of the locking end seat, and the fixing column abuts against the inner wall of the bottom end of the locking end seat.

[0018] As a further improvement of the present invention: the winding rotation fixed seat is connected to the winding power device, the winding power device is a power torsion spring, the winding rotation fixed seat is fixedly connected to the power torsion spring, and when the winding rotation fixed seat rotates, the power torsion spring rotates to generate torque.

[0019] As a further improvement of the present invention: the sunshade curtain connecting seat is provided with a sunshade curtain connecting groove, and the sunshade curtain connecting groove is used for connecting the sunshade curtain.

[0020] Compared with the prior art, the beneficial effects of the present invention are: the locking structure is inside the sunshade winder, and the winding and rotating fixed seat is fixed by a protruding limit part, so that the sunshade can be rolled up or partially rolled up as needed, and the locking structure will not be worn out even after long-term use. The locking structure is inside the locking end seat to prevent the locking structure from falling off, thereby effectively increasing the service life of the sunshade. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the locking switch of the present invention.

[0022] Figure 2 It is a structural schematic diagram of the locking switch of the present invention.

[0023] Figure 3 It is a schematic diagram of the structure of the locking switch and the locking limit seat of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the locking switch and the locking limit seat of the present invention.

[0025] Figure 5 for Figure 4 Schematic diagram of the cross section along line A-A'.

[0026] Figure 6 It is a schematic structural diagram of the locking switch, the locking limit seat and the winding and rotating fixed seat of the present invention.

[0027] Figure 7 for Figure 6 Schematic diagram of the cross section along line BB'.

[0028] Figure 8 It is a schematic structural diagram of the locking switch, the locking limit seat and the winding and rotating fixed seat of the present invention.

[0029] Fig. 9 The schematic diagram is a structural diagram of a locking switch, a locking limit seat and a winding rotation fixed seat arranged in a locking end seat. DETAILED DESCRIPTION

[0030] The present invention is further described with reference to the accompanying drawings and embodiments: Figures 1 to 9As shown, a locking structure includes a locking switch 1, the locking switch 1 includes a pushing seat 11, a limiting portion 12 and a spring fixing seat 13, the pushing seat 11 is arranged below the limiting portion 12, the spring fixing seat 13 is arranged at a central position above the limiting portion 11, a hook-shaped protruding limiting portion 101 is arranged on the lower side of the limiting portion 12, and the left and right sides of the limiting portion 12 and the left side of the protruding limiting portion 101 are movable limiting portions 102; a sunshade retractor includes a retracting rotating fixed A fixed seat 4, a locking limit seat 3, a locking switch 1 and a locking end seat 5, the winding and rotating fixed seat 4 includes a sunshade connecting seat 41 and a winding and fixed seat 42, the sunshade connecting seat 41 is fixedly connected to the winding and fixed seat 42, the winding and fixed seat 42 is provided with a locking limit seat 3 and a locking switch 1, the winding and fixed seat 42, the locking limit seat 3 and the locking switch 2 are arranged in the locking end seat 5, and the protruding limit portion 101 of the locking switch 1 is against the winding and rotating fixed seat 4.

[0031] The pushing seat 11 is L-shaped, the four corners of the limiting portion 12 are provided with movable recesses 103, the center of the limiting portion 12 is provided with a connecting hole 104 that penetrates the limiting portion from the front-to-back direction, and the spring fixing seat 13 is provided with a locking spring 2.

[0032] The limiting portion 12 of the locking switch 1 is placed on the locking limiting seat 3, and the locking limiting seat 3 is provided with a fixed column 31, a movable limiting block 32, a locking groove 33 and a fixed limiting groove 34, the fixed column 31 is arranged on the left and right sides above the locking groove 33 and on the left and right sides below the movable limiting block 32, and the protruding limiting portion 101 is arranged on the fixed limiting groove 34.

[0033] The length of the limiting portion 12 is the same as the diameter of the locking groove 33. The hollow length between the fixed limiting grooves 34 is greater than the length of the protruding limiting portion 101. The protruding limiting portion 101 can move from the fixed limiting groove 34. The movable limiting portions 102 on the left and right sides of the limiting portion 12 are arranged on the straight walking side in the locking groove 33. The movable limiting portion 102 on the left side of the protruding limiting portion 101 below the limiting portion 12 is arranged on the left side of the fixed limiting groove 34 at the bottom end in the locking groove 33.

[0034] The winding and fixing seat 4 is provided with a limit seat groove 43 , the limit seat groove 43 is provided with a positioning groove 401 , and the sunshade curtain connecting seat 41 is provided with a sunshade curtain connecting groove 402 .

[0035] The locking spring 2 above the locking switch 1 abuts between the locking switch 1 and the inner wall of the locking end seat 5 , and the fixing column 31 abuts against the inner wall of the bottom end of the locking end seat 5 .

[0036] like Figure 1 and Figure 2As shown, the locking switch is integrally formed, and the locking switch includes a pushing seat, a limiting portion and a spring fixing seat, the pushing seat is L-shaped, the pushing seat is arranged below the limiting portion, the spring fixing seat is arranged at a central position above the limiting portion, a hook-shaped protruding limiting portion is provided on the lower side of the limiting portion, the protruding limiting portion protrudes outside the limiting portion, movable recesses are provided at the four corners of the limiting portion, and a connecting hole is provided in the center of the limiting portion that penetrates the limiting portion from the front-to-back direction.

[0037] like Figures 3-5 As shown, the limit part of the locking switch is placed on the locking limit seat, and the locking limit seat is provided with a fixed column, a movable limit block, a locking groove and a fixed limit groove, the protruding limit part is arranged on the fixed limit groove, the position of the movable recess corresponds to the position of the fixed column, the height of the movable recess at the upper part of the limit part from the top of the limit part is not less than the diameter of the fixed column, the movable recess at the lower part of the limit part is semicircular, the fixed column is arranged on the left and right sides above the locking groove and on the left and right sides below the movable limit block, the movable limit parts on the left and right sides of the limit part are arranged on the straight walking side in the locking groove, and the movable limit part on the left side of the protruding limit part below the limit part is arranged on the left side of the fixed limit groove at the bottom end in the locking groove.

[0038] like Figures 6 to 9 As shown, it includes a winding and rotating fixed seat, a locking limit seat, a locking switch and a locking end seat, the winding and fixing seat is provided with a locking limit seat and a locking switch, the winding and fixing seat, the locking limit seat and the locking switch are arranged in the locking end seat, the winding and rotating fixed seat includes a sunshade connecting seat and a winding and fixing seat, the sunshade connecting seat is fixedly connected to the winding and fixing seat, the winding and fixing seat is provided with a limit seat groove, the limit seat groove is provided with a positioning groove, the locking limit seat is arranged in the limit seat groove, the protruding limit portion of the locking switch passes through the fixed limit groove and is against the positioning groove, the sunshade connecting seat is provided with a sunshade connecting groove, and the sunshade connecting groove is used to connect the sunshade.

[0039] The winding rotation fixed seat is connected to the winding power device, and the winding power device is a power torsion spring. The winding rotation fixed seat is fixedly connected to the power torsion spring. When the winding rotation fixed seat rotates, the power torsion spring rotates to generate torque, so that the sunshade has a torque for rotation and winding, and the winding is controlled by a locking switch.

[0040] In order to increase the intermediate stop position of the sunshade curtain when rolling up, the number of the positioning grooves is two, and the positions of the positioning grooves are opposite to each other in the groove of the limiting seat.

[0041] The main functions of the present invention are as follows: the locking structure is inside the sunshade winder, and the winding and rotating fixed seat is fixed by a protruding limit part, so that the sunshade can be rolled up or partially rolled up as needed, and the locking structure will not be worn out even after long-term use. The locking structure is inside the locking end seat to prevent the locking structure from falling off, thereby effectively increasing the service life of the sunshade.

[0042] In summary, after reading the present invention document, ordinary technicians in this field can make various other corresponding transformation schemes based on the technical scheme and technical concept of the present invention without creative mental work, which all fall within the scope of protection of the present invention.

Claims

1. A sunshade retractor, characterized in that: It includes a winding and rotating fixed seat, a locking limit seat, a locking switch and a locking end seat, the winding and rotating fixed seat includes a sunshade connecting seat and a winding and fixed seat, the sunshade connecting seat is fixedly connected to the winding and fixed seat, a locking limit seat and a locking switch are arranged in the winding and fixed seat, the winding and fixed seat, the locking limit seat and the locking switch are arranged in the locking end seat, and the protruding limit portion of the locking switch is against the winding and rotating fixed seat; the locking switch includes a pushing seat, a limit portion and a spring fixed seat; The locking switch comprises a pushing seat, a limiting part and a spring fixing seat, the pushing seat is arranged below the limiting part, the spring fixing seat is arranged at the central position above the limiting part, a hook-shaped protruding limiting part is arranged on the lower side of the limiting part, and the left and right sides of the limiting part and the left side of the protruding limiting part are movable limiting parts; the locking switch is integrally formed, and the protruding limiting part protrudes outside the limiting part; the four corners of the limiting part are provided with movable recesses, and the center of the limiting part is provided with a connecting hole that penetrates the limiting part from the front and back directions; the limiting part of the locking switch is placed on the locking limiting seat, and the locking limiting seat is provided with a fixed column, a movable limiting block, a locking groove and a fixed limiting groove, and the protruding limiting part is arranged on the fixed limiting groove; the fixed column is arranged on the left and right sides above the locking groove and the left and right sides below the movable limiting block; the length of the limiting part is the size of the diameter of the locking groove, the hollow length between the fixed limiting grooves is greater than the length of the protruding limiting part, and the protruding limiting part can move from the fixed limiting groove; The pushing seat is L-shaped, and a locking spring is provided on the spring fixing seat; A limit seat groove is provided in the winding fixed seat, a positioning groove is provided in the limit seat groove, the locking limit seat is arranged in the limit seat groove, and the protruding limit portion of the locking switch passes through the fixed limit groove and abuts against the positioning groove.

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