Sunroof arm locking and unlocking structure

Abstract

The utility model relates to a sunshade technical field discloses a sunshade curved arm locking and unlocking structure, the awning cloth of sunshade stretches out from the shell and is fixed on the front pole, the front pole and shell are connected through left and right curved arms and form the frame structure, the awning cloth is located on the frame structure, the curved arm includes the forearm and rear arm through the hinge connection, sets up the forearm inner tube in the forearm, drives the telescopic in the forearm through the air pressure pole fixed on the hinge, the front end of the forearm inner tube is fixed on the front pole through the front hinge, the front hinge includes the hinge concave fixed on the front pole and the hinge convex fixed on the front end of the forearm inner tube, the hinge concave and hinge convex install through the fixed pin, sets up the arm lock piece through the torsional spring rotation in one end of fixed pin, the torsional spring makes the arm lock piece produce the force to the curved arm outside, the front end of the forearm sets up a round pin, the utility model makes the three sections of arm of sunshade stable and consistent in the process of opening or closing each time.

Description

Technical Field

[0001] This utility model relates to the field of awning technology, and in particular to an awning arm locking and unlocking structure. Background Technology

[0002] Existing three-section arm awnings generally consist of two conventional curved arms plus a pneumatic telescopic arm. After the curved arms are extended, the pneumatic arm is extended to achieve the extension effect of a three-section arm.

[0003] In existing awnings, during the opening process, the curved arm has an internal tension for straightening, while the gas spring extension arm has an internal force for extending. These two forces act simultaneously to fully open the arm. Because the forces acting on the curved arm during opening are variable, while the gas spring provides a relatively constant force, the order in which the curved arm and the gas spring extension arm open is uncontrollable, resulting in inconsistent opening and closing of the awning. Utility Model Content

[0004] The purpose of this invention is to solve the above problems by providing a locking and unlocking structure for the curved arm of a sunshade, so that the three sections of the sunshade arm remain stable and consistent during each opening or closing process.

[0005] The technical solution adopted by this utility model is: A locking and unlocking structure for a sunshade awning arm, characterized in that the awning includes a housing and a front pole, with the awning fabric extending from the housing and fixed to the front pole. The front pole and the housing are connected by left and right curved arms to form a frame structure, the awning fabric is located on the frame structure, and each curved arm includes a front arm and a rear arm connected by a central hinge. An inner tube is provided within the front arm, which is driven to extend and retract within the front arm by a gas spring fixed to the central hinge. The front end of the inner tube is fixed to the front pole via a front hinge. The hinge includes a hinge recess fixed to the front rod and a hinge protrusion fixed to the front end of the inner tube of the forearm. The hinge recess and hinge protrusion are installed by a fixing pin. An arm locking plate is rotatably set at one end of the fixing pin by a torsion spring. The torsion spring causes the arm locking plate to generate a force to the outside of the forearm. A round pin is set at the front end of the forearm. When the forearm is in the closed state, the arm locking plate cooperates with the round pin to lock the forearm. When the forearm is fully extended, the arm locking plate disengages from the round pin, and the inner tube of the forearm is driven by a pneumatic rod to extend out from the inside of the forearm.

[0006] Furthermore, a slot is provided on the arm locking plate, one end of the torsion spring is inserted into the slot, and the other end is restricted on the hinge recess of the front hinge.

[0007] Furthermore, the arm locking plate is symmetrically arranged on both sides of the front end of the forearm with the corresponding circular pin.

[0008] Furthermore, the left and right curved arms are symmetrically arranged, and the rear arm is engaged with the cover via a rear hinge.

[0009] The beneficial effects of this utility model are: During the opening of the awning: the curved arm opens first, the gas spring telescopic arm is locked, and when the curved arm is almost fully open, the gas spring telescopic arm automatically unlocks and then extends; during the closing of the awning: the gas spring telescopic arm retracts first, and then the curved arm begins to bend. After the curved arm bends, the angle changes, and the round pin gets into the notch of the arm locking plate, ensuring that the gas spring telescopic arm will not pop out during the closing process. Attached Figure Description

[0010] Appendix Figure 1 This is a structural diagram of a sunshade awning; Appendix Figure 2 This is a schematic diagram of the internal structure of the forearm; Appendix Figure 3 This is a schematic diagram of the connection structure between the forearm and the front rod; Appendix Figure 4 This is a diagram showing the retracted position of the articulated arm; Appendix Figure 5 It is attached Figure 4 A magnified view of part A in the image; Appendix Figure 6 It is a diagram showing the extended position of the curved arm; Appendix Figure 7 It is attached Figure 6 A magnified view of part B in the image; Appendix Figure 8 This is a fully extended view of the pneumatic strut; Appendix Figure 9 It is attached Figure 8 A magnified view of part C.

[0011] The labels in the attached diagram are as follows: 1. Awning; 2. Enclosure; 3. Front pole; 4. Canopy; 5. Articulated arm; 6. Middle hinge; 7. Forearm; 8. Hindarm; 9. Forearm inner tube; 10. Pneumatic lever; 11. Front hinge; 12. Hinge recess; 13. Hinge protrusion; 14. Fixing pin; 15. Torsion spring; 16. Arm locking plate; 17. Slot; 18. Round pin. Detailed Implementation

[0012] The specific implementation of the awning arm locking and unlocking structure of this utility model will be described in detail below with reference to the accompanying drawings.

[0013] See appendix Figure 1The awning 1 includes a housing 2 and a front pole 3. A canopy 4 extends from the housing 2 and is fixed to the front pole 3. The front arm 7 is connected to the housing 2 via left and right curved arms 5 to form a frame structure, with the canopy 4 situated on the frame structure. The left and right curved arms 5 of the awning 1 are symmetrically arranged, and the rear arm 8 is fitted onto the housing 2 via a rear hinge. The bending plane of the curved arm 5 is parallel to the plane of the canopy 4.

[0014] See appendix Figure 2 The articulated arm 5 includes a forearm 7 and a rear arm 8 connected by a central hinge 6. An inner tube 9 is provided inside the forearm 7 and is driven to extend and retract within the forearm 7 by a pneumatic rod 10 fixed on the central hinge 6. The front end of the inner tube 9 is fixed to the front rod 3 by a front hinge 11. The front hinge 11 includes a hinge recess 12 fixed on the front rod 3 and a hinge protrusion 13 fixed to the front end of the inner tube 9. The hinge recess 12 and the hinge protrusion 13 are installed by a fixing pin 14.

[0015] See appendix Figure 3 An arm locking plate 16 is rotatably mounted on one end of the fixing pin 14 via a torsion spring 15. The torsion spring 15 causes the arm locking plate 16 to generate a force toward the outside of the curved arm 5. A slot 17 is provided on the arm locking plate 16, with one end of the torsion spring 15 inserted into the slot 17 and the other end restrained on one side of the hinge recess of the front hinge. A round pin 18 is provided at the front end of the forearm 7. When the curved arm 5 is in the closed state, the arm locking plate 16 cooperates with the round pin 18 to lock the forearm 7. When the curved arm 5 is fully extended, the arm locking plate 16 disengages from the round pin 18, and the inner tube 9 of the forearm is driven by the pneumatic rod 10 to extend out from the forearm 7.

[0016] In application, the arm locking plate 16 and the corresponding round pin 18 can be symmetrically set on both sides of the front end of the forearm 7.

[0017] The opening and closing process of the awning 1's curved arm 5 in this patent is as follows: See appendix Figure 4 , 5 When the sunshade 1 is operated from the closed state to the open state, before the curved arm 5 is fully extended, the angle between the forearm 7 and the front rod 3 gradually increases from parallel. Due to the outward force of the internal retaining spring, the arm locking plate 16 remains locked on the arm locking plate 16 of the outer tube of the forearm 7, so that the inner tube 9 of the forearm is limited and cannot be dislodged by itself.

[0018] See appendix Figure 6 , 7 When the awning 1 is in motion until the curved arm 5 is fully extended, the forearm 7 and the front bar 3 reach their maximum angle. The arm locking plate 16 also extends to its limit. At this moment, it disengages from the arm locking plate 16 of the forearm 7. This causes the forearm 7 to change from the locked state to the free state. Continued operation can cause the inner tube 9 of the forearm 7 to move outward.

[0019] See appendix Figure 8 , 9Continue operating the sunshade 1. The force of the air pressure rod 10 inside the forearm 7 ensures that the inner tube 9 of the forearm has an outward extension force. Continue operating until the inner tube 9 of the forearm reaches the limit. At this point, the sunshade 1 is fully deployed.

[0020] When the sunshade 1 is operated from the open state to the closed state, after the forearm 7 is fully retracted, the curved arm 5 is bent, and the arm locking plate 16 is just locked at the arm locking plate 16 of the outer tube of the forearm 7. As operation continues, the inner tube 9 of the forearm keeps retracting inward, and finally retracts completely to a position parallel to the front bar 3.

[0021] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A locking and unlocking structure for a sunshade arm, characterized in that: The awning includes a cover and a front pole. The awning fabric extends from the cover and is fixed to the front pole. The front pole and the cover are connected by left and right curved arms to form a frame structure. The awning fabric is located on the frame structure. The curved arms include a front arm and a rear arm connected by a central hinge. The front arm has an inner tube, which extends and retracts within the front arm via a pneumatic rod fixed to the central hinge. The front end of the inner tube is fixed to the front pole via a front hinge. The front hinge includes a hinge recess fixed to the front pole and a hinge protrusion fixed to the front end of the inner tube. The hinge recess and hinge protrusion are installed by a fixing pin. An arm locking plate is rotatably mounted at one end of the fixing pin via a torsion spring. The torsion spring causes the arm locking plate to generate a force outward of the curved arm. A round pin is provided at the front end of the front arm. When the curved arm is in the closed state, the arm locking plate cooperates with the round pin to lock the front arm. When the curved arm is fully extended, the arm locking plate disengages from the round pin, and the inner tube of the front arm extends outward from the front arm via the pneumatic rod.

2. The awning arm locking and unlocking structure according to claim 1, characterized in that: The arm locking plate is provided with a slot, one end of the torsion spring is inserted into the slot, and the other end is restricted on the hinge recess of the front hinge.

3. The awning arm locking and unlocking structure according to claim 1, characterized in that: The arm locking plate and the corresponding round pin are symmetrically arranged on both sides of the front end of the forearm.

4. The awning arm locking and unlocking structure according to claim 1, characterized in that: The left and right curved arms are symmetrically arranged, and the rear arm is engaged with the cover through a rear hinge.

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