Winding rod fixing structure of sunshade curtain

Abstract

The utility model discloses a winching rod fixing structure of a sunshade curtain, which comprises a winching rod, a base frame and two fixing seats, two ends of the winching rod are respectively arranged on the two fixing seats, the winching rod comprises a winching drum, a steel shaft and a winching spring, the winching drum is sleeved on the steel shaft, the winching spring is arranged between the winching drum and the steel shaft, and the steel shaft is sleeved on the winching drum. One end of the winding spring is fixedly connected to the winding drum, the other end of the winding spring is fixedly connected to the steel shaft, the winding drum is used for winding curtain cloth, the end of the steel shaft is fixedly connected with a fixing plate, a fixing angle is arranged on the fixing plate, a fixing groove is formed in the fixing seat, and after the fixing plate rotates along the axis of the steel shaft, the fixing angle is embedded into the fixing groove to be fixed. According to the winding rod fixing structure of the sunshade curtain, the situation that connection between the winding rod and the fixing base is loosened due to rotation inertia of the winding rod can be avoided.

Description

Technical Field

[0001] The utility model relates to the field of automobile parts, in particular to a winding rod fixing structure of a sunshade. Background Art

[0002] The use of car sunshade systems in cars is becoming more and more common. Its main purpose is to prevent the interior of the car from being heated up by strong light to ensure the user experience of the car. The second is to provide sunshade for the driver to avoid being exposed to the sun and causing driving hazards.

[0003] At the same time, in order to enhance the user experience of the sunshade system, the sunshade system will use electric control to expand or retract the sunshade curtain. However, during the electric control of the expansion and retraction of the curtain, the hoisting rod used to hoist the curtain will cause the connection between the hoisting rod and the fixed seat to loosen due to rotational inertia, which is not conducive to the long-term use of the sunshade system. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a hoist rod fixing structure of a sunshade curtain which can avoid the loose connection between the hoist rod and the fixing seat caused by the rotation inertia of the hoist rod.

[0005] The technical solution adopted by the utility model to solve the above-mentioned problem is: a winding rod fixing structure of a sunshade curtain, comprising a winding rod, a base frame and a fixing seat, wherein two fixing seats are provided in total, and the two fixing seats are respectively fixedly connected to the two ends of the base frame, the winding rod is arranged along the length direction of the base frame and the two ends of the winding rod are respectively arranged on the two fixing seats, the winding rod comprises a winding drum, a steel shaft and a winding spring, the winding drum is sleeved on the steel shaft, the winding spring is arranged between the winding drum and the steel shaft, one end of the winding spring is fixedly connected to the winding drum, and the other end of the winding spring is fixedly connected to the steel shaft, the winding drum is used for winding curtain cloth, the end of the steel shaft is fixedly connected with a fixing plate, the fixing plate is provided with a fixing angle, the fixing seat is provided with a fixing groove, and after the fixing plate rotates along the axis of the steel shaft, the fixing angle is embedded in the fixing groove for fixing.

[0006] Compared with the prior art, the advantages of the utility model are: first, the engagement of the fixed angle with the fixed groove can realize the fixation of the steel shaft, wherein in the process of fixing the steel shaft, the elastic force of the winch spring is used to drive the fixed angle to be embedded in the fixed groove, rather than manually rotating the fixing plate to make the fixed angle embedded in the fixing groove, thereby reducing the fastening connection of the fixing plate to the fixing seat, and in the process of reciprocatingly unfolding and contracting the curtain, the change of the elastic force exerted on the steel shaft will not affect the fixing effect between the fixing plate and the fixing seat, and even the fixing structure of the fixing plate on the fixing seat can play an inertial buffering effect in the process of rapid contraction of the curtain. When the curtain contracts rapidly, it contracts by rotating the winch drum under the elastic reset force of the winch spring. At the moment of stopping the contraction, the inertia Under the action of the inertial force, the winch drum will tend to continue to rotate, and the winch spring will also tend to reset further. However, the actual situation is that the winch drum can no longer rotate. Instead, the winch spring stretches during the contraction process, causing the elastic force on the steel shaft to fluctuate. When the elastic force of the winch spring is at the contraction limit and the elastic force of the winch spring is less than the inertial force, the steel shaft will drive the fixed plate to rotate slightly and then perform inertial buffering, and then reset to a state of being against the fixed seat under the action of the elastic force of the winch spring. During this process, the fixed angle is always in the fixed groove. If the fixed plate is fixed to the fixed seat by fasteners, the inertial force will easily cause the fasteners to rotate, resulting in loose connection, which is not conducive to long-term use.

[0007] As an improvement of the present utility model, the fixed plate is provided with a rotation limit groove, the rotation limit groove is arc-shaped, the center of the rotation limit groove is arranged on the axis of the steel shaft, and the fixed seat is provided with a rotation limit arc column movably connected in the rotation limit groove. Through the improvement, the mobile connection design of the rotation limit groove and the limit arc column can ensure the axial linearity of the steel shaft and will not deviate, and ensure that the steel shaft always maintains axial consistency and stability during installation and use, thereby ensuring the quality of use of the winch rod.

[0008] As an improvement of the present invention, there are two fixing angles and two fixing grooves. Through the improvement, the fixing stability between the fixing plate and the fixing seat is enhanced, and the possibility of deformation of the fixing angle and the fixing groove in a long-term counteracting state is reduced.

[0009] As an improvement of the utility model, an extension block is provided at one end of the fixed seat away from the hoisting rod, the fixed groove is provided with a connection between the extension block and the fixed seat, and the extension block is provided with a limiting portion on the side of the fixed groove away from the fixed seat for preventing the fixed angle from axially disengaging from the fixed groove. Through the improvement, the molding of the fixed groove is realized, and at the same time, the fixing stability of the fixed angle after being embedded in the fixed groove is guaranteed, and it will not disengage from the fixed groove along the axial direction.

[0010] As an improvement of the utility model, the two fixed angles are arranged on two adjacent corners of the fixed plate, a right-angle inner groove is provided on the extension block in the direction close to the steel axis, and the two fixed grooves are respectively arranged on two right-angle sides of the right-angle inner groove, and the right-angle inner groove fits with the fixed plate that is not rotated and embedded in the fixed groove. Through the improvement, the tightness of the fixing process of the fixed angle and the fixed groove is guaranteed. After the fixed plate is slightly rotated, the fixed angle begins to be embedded in the fixed groove, which can more effectively prevent the fixed angle from escaping from the fixed groove.

[0011] As an improvement of the utility model, the end of the hoisting rod close to the fixed seat is rotatably connected with a rotating block, and the rotating block is circumferentially limitedly connected to the hoisting drum. The rotating block is provided with a spring groove for fixedly connected to one end of the hoisting spring, and the steel shaft is provided with a fixing hole. The other end of the hoisting spring is inserted into the fixing hole and fixedly connected to the steel shaft. Through the improvement, the fixed connection of the hoisting spring between the hoisting drum and the steel shaft is achieved.

[0012] As an improvement of the utility model, the rotating block and the hoisting drum are connected circumferentially by adopting a structure of a square block and a square hole, and the square block fits with the square hole. Through the improvement, the circumferential limit connection between the rotating block and the hoisting drum is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the application of the utility model.

[0014] Figure 2 The utility model is a schematic diagram of the overall structure of the hoisting rod and the fixing seat.

[0015] Figure 3 The utility model is a schematic diagram of the cross-sectional structure of a hoisting rod and a fixing seat.

[0016] Figure 4 It is a schematic diagram of the connection structure between the fixing plate and the fixing seat of the utility model.

[0017] Figure 5 It is a schematic diagram of the connection structure between the fixing plate and the fixing groove of the utility model.

[0018] Figure 6 It is a schematic diagram of the connection structure between the fixing plate of the utility model and the fixing seat before being embedded in the fixing groove.

[0019] Figure 7 The utility model is a schematic diagram of the connection structure between the hoisting spring and the rotating block.

[0020] As shown in the figure: 1. winch rod, 1.1. winch cylinder, 1.2. steel shaft, 1.2.1. fixing hole, 1.3. winch spring, 2. base frame, 3. fixing seat, 3.1. fixing groove, 3.2. rotation limiting arc column, 4. curtain cloth, 5. fixing plate, 5.1. fixing angle, 5.2. rotation limiting groove, 6. extension block, 6.1. limiting part, 6.2. right-angle inner groove, 7. rotation block, 7.1. spring groove, 7.2. square block. DETAILED DESCRIPTION

[0021] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.

[0022] like Figure 1-7 As shown, a hoist rod fixing structure of a sunshade includes a hoist rod 1, a base frame 2 and a fixing seat 3, wherein the fixing seats 3 are provided with two in total, and the two fixing seats 3 are respectively fixedly connected to the two ends of the base frame 2, the hoist rod 1 is arranged along the length direction of the base frame 2 and the two ends of the hoist rod 1 are respectively arranged on the two fixing seats 3, the hoist rod 1 includes a hoist drum 1.1, a steel shaft 1.2 and a hoist spring 1.3, the hoist drum 1.1 is sleeved on the steel shaft 1.2, and the hoist spring 1.3 is arranged on the hoist drum 1 .1 and the steel shaft 1.2, one end of the hoisting spring 1.3 is fixedly connected to the hoisting drum 1.1, and the other end of the hoisting spring 1.3 is fixedly connected to the steel shaft 1.2. The hoisting drum 1.1 is used for hoisting the curtain 4. The end of the steel shaft 1.2 is fixedly connected with a fixing plate 5, and a fixing angle 5.1 is provided on the fixing plate 5. A fixing groove 3.1 is provided on the fixing seat 3. After the fixing plate 5 rotates along the axis of the steel shaft 1.2, the fixing angle 5.1 is embedded in the fixing groove 3.1 for fixation.

[0023] like Figure 4-6 As shown, the fixed plate 5 is provided with a rotation limiting groove 5.2, the rotation limiting groove 5.2 is arc-shaped, the center of the rotation limiting groove 5.2 is set on the axis of the steel shaft 1.2, the fixed seat 3 is provided with a rotation limiting arc column 3.2 movably connected in the rotation limiting groove 5.2, the fixed angle 5.1 is provided with two, the fixed groove 3.1 is also provided with two, the end of the fixed seat 3 away from the hoisting rod 1 is provided with an extension block 6, and the fixed groove 3.1 is provided with a connection between the extension block 6 and the fixed seat 3 The extension block 6 is provided with a limiting portion 6.1 on the side of the fixing groove 3.1 away from the fixing seat 3 for preventing the fixing angle 5.1 from axially disengaging from the fixing groove 3.1. The two fixing angles 5.1 are arranged at two adjacent corners on the fixing plate 5. A right-angle inner groove 6.2 is provided on the extension block 6 in the direction close to the steel shaft 1.2. The two fixing grooves 3.1 are respectively arranged on two right-angle sides of the right-angle inner groove 6.2. The right-angle inner groove 6.2 is matched with the fixing plate 5 that is not rotated and embedded in the fixing groove 3.1.

[0024] When the fixing plate 5 is installed, the hoisting spring 1.3 will be in a contracted state. When the fixing plate 5 and the fixing seat 3 are against each other, the fixing plate 5 will be driven to rotate under the action of the hoisting spring 1.3, so that the fixing angle 5.1 is bent into the fixing groove 3.1. At this time, the rotating arc column will rotate from one end of the rotation limit groove 5.2 to the other end of the rotation limit groove 5.2. During use, as long as the elastic force of the hoisting spring 1.3 is not damaged and no force is applied to the fixing plate 5 from the fixing seat 3 to the fixing plate 5, it is difficult for the fixing plate 5 to separate from the fixing seat 3, which ensures the connection stability between the fixing plate 5 and the fixing seat 3.

[0025] During the contraction of the curtain 4, if the contraction speed is faster, the inertia force is more likely to be greater than the elastic force of the hoisting spring 1.3. During use, in the extreme contraction state of the curtain 4, the hoisting spring 1.3 only needs to ensure the rotational force of the fixed plate 5 embedded in the fixed groove 3.1, so that when the curtain 4 contracts too fast, the inertia force is likely to be greater than the elastic force of the hoisting spring 1.3, causing the fixed plate 5 to rotate in the direction of leaving the fixed groove 3.1; if the elastic force of the hoisting spring 1.3 used is much greater than the possible inertia force, it is easy to cause the contact force between the fixed plate 5 and the fixed groove 3.1 to be too large, and the fixed plate 5 is easy to deform or damage. Especially on large buses, the front windshield is huge and high. If the hoisting speed of the curtain 4 is slow, it takes a long time to wait for the curtain 4 to complete the hoisting action.

[0026] like Figure 3 , Figure 7 As shown, the hoisting rod 1 is rotatably connected to one end of the fixed seat 3 with a rotating block 7, and the rotating block 7 is circumferentially limitedly connected to the hoisting drum 1.1. The rotating block 7 is provided with a spring groove 7.1 for fixedly connected to one end of the hoisting spring 1.3. The steel shaft 1.2 is provided with a fixing hole 1.2.1. The other end of the hoisting spring 1.3 is inserted into the fixing hole 1.2.1 and fixedly connected to the steel shaft 1.2. The rotating block 7 and the hoisting drum 1.1 are circumferentially limitedly connected by a structure of a square block 7.2 and a square hole, and the square block 7.2 fits with the square hole.

[0027] The above description is only for the best embodiment of the utility model, but it cannot be understood as a limitation of the claims. The utility model is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the protection scope of the independent claims of the utility model are within the protection scope of the utility model.

Claims

1. A sunshade hoist rod fixing structure, characterized in that: The invention comprises a hoisting rod (1), a base frame (2) and a fixing seat (3), wherein two fixing seats (3) are provided, and the two fixing seats (3) are respectively fixedly connected to the two ends of the base frame (2); the hoisting rod (1) is arranged along the length direction of the base frame (2) and the two ends of the hoisting rod (1) are respectively arranged on the two fixing seats (3); the hoisting rod (1) comprises a hoisting drum (1.1), a steel shaft (1.2) and a hoisting spring (1.3); the hoisting drum (1.1) is sleeved on the steel shaft (1.2); the hoisting spring (1.3) is arranged between the hoisting drum (1.1) and the steel shaft (1.2); .2), one end of the hoisting spring (1.3) is fixedly connected to the hoisting drum (1.1), and the other end of the hoisting spring (1.3) is fixedly connected to the steel shaft (1.2); the hoisting drum (1.1) is used to hoist the curtain cloth (4); the end of the steel shaft (1.2) is fixedly connected to a fixing plate (5); the fixing plate (5) is provided with a fixing angle (5.1); the fixing seat (3) is provided with a fixing groove (3.1); after the fixing plate (5) rotates along the axis of the steel shaft (1.2), the fixing angle (5.1) is embedded in the fixing groove (3.1) for fixing.

2. A sunshade hoist rod fixing structure according to claim 1, characterized in that: The fixing plate (5) is provided with a rotation limiting groove (5.2), the rotation limiting groove (5.2) is arc-shaped, the center of the rotation limiting groove (5.2) is arranged on the axis of the steel shaft (1.2), and the fixing seat (3) is provided with a rotation limiting arc column (3.2) movably connected in the rotation limiting groove (5.2).

3. The hoisting rod fixing structure of the sunshade according to claim 1, characterized in that: There are two fixed angles (5.1) in total, and there are also two fixed grooves (3.1) in total.

4. The hoisting rod fixing structure of the sunshade according to claim 3 is characterized in that: An extension block (6) is provided at one end of the fixing seat (3) away from the hoisting rod (1); the fixing groove (3.1) is provided with a connection between the extension block (6) and the fixing seat (3); and the extension block (6) is provided with a portion on a side of the fixing groove (3.1) away from the fixing seat (3) for preventing the fixing angle (5.1) from detaching from the fixing groove (5.1) along the axial direction. 3.1) of the limiting portion (6.1).

5. The hoisting rod fixing structure of the sunshade according to claim 4, characterized in that: The two fixed corners (5.1) are arranged at two adjacent corners on the fixed plate (5); a right-angle inner groove (6.2) is provided on the extension block (6) in a direction close to the steel shaft (1.2); the two fixed grooves (3.1) are respectively arranged on two right-angle sides of the right-angle inner groove (6.2); and the right-angle inner groove (6.2) fits with the fixed plate (5) that is not rotated and embedded in the fixed groove (3.1).

6. The hoisting rod fixing structure of the sunshade according to claim 1, characterized in that: One end of the hoisting rod (1) close to the fixed seat (3) is rotatably connected to a rotating block (7), the rotating block (7) is circumferentially limitedly connected to the hoisting drum (1.1), the rotating block (7) is provided with a spring groove (7.1) for fixedly connecting to one end of the hoisting spring (1.3), the steel shaft (1.2) is provided with a fixing hole (1.2.1), and the other end of the hoisting spring (1.3) is inserted into the fixing hole (1.2.1) and fixedly connected to the steel shaft (1.2).

7. The hoisting rod fixing structure of the sunshade according to claim 6, characterized in that: The rotating block (7) and the hoist drum (1.1) are connected in a circumferential limiting manner using a structure of a square block (7.2) and a square hole, and the square block (7.2) fits in the square hole.

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