Tightness adjusting device for rotating shaft

Abstract

The utility model discloses a rotating shaft tightness adjusting device, which relates to the technical field of screen windows and comprises an upper frame, a lower frame and a screen window frame consisting of two groups of symmetrically arranged storage boxes, a lower rotating seat shell is fixedly connected to the joint of one group of storage box and the lower frame, an upper rotating seat shell is fixedly connected to the joint of the storage box and the upper frame, and the lower rotating seat shell is fixedly connected to the joint of the storage box and the upper frame. The outer portion of the lower rotating seat shell and the outer portion of the upper rotating seat shell are both rotationally connected with gaskets, a rotating shaft is clamped between the two gaskets, the bottom of the lower rotating seat shell is rotationally connected with a connecting piece, an adjusting mechanism is installed in the rotating shaft, and the adjusting mechanism comprises a rotating piece, a spring and a transmission piece. According to the device, the tightness of the device can be conveniently adjusted according to actual use, it is guaranteed that the gauze element can be normally stored, meanwhile, the force for the connecting rod to impact the storage box is reduced to the minimum, the integrity of the overall structure is guaranteed, after the spring is loosened after being used for a long time, rapid adjustment can be conducted by rotating the connecting piece externally, and more convenience is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of window screens, and more specifically, to a device for adjusting the tightness of a rotating shaft. Background Art

[0002] In modern home life, window screens, as common window sunshading and protection devices, are increasingly valued by users in terms of their design and functionality. Especially flexible screen windows with light-shielding and protection functions can not only prevent mosquitoes, insects, ventilate, effectively block external light, etc., but also be retracted and stored, enhancing the practicality of the windows and improving living comfort. However, in the prior art, there are often some problems with the storage and deployment mechanisms of the screen, especially in systems driven by springs.

[0003] The screen storage mechanism of traditional window screens usually drives the screen to elongate through a connecting rod, stretching the spring to store energy. When the screen needs to be stored, the connecting rod is released, and the spring releases energy to drive the screen to retract. However, it is difficult to precisely control the kinetic energy given to the connecting rod when the spring resets. If the force is too large, it is easy to cause the connecting rod to violently impact the screen storage box, resulting in structural damage or noise pollution. If the force is too small, the screen may not be fully stored, affecting the use effect. Moreover, during the use of the spring, with the passage of time and the increase in the number of uses, its tightness will gradually change, thereby affecting the storage effect of the screen. Therefore, in view of the above technical problems, a device for adjusting the tightness of a rotating shaft is proposed herein. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a device for adjusting the tightness of a rotating shaft, which can facilitate the adjustment of its tightness according to actual use, ensure that while the screen can be normally stored, the force of the connecting rod impacting the storage box is reduced to the minimum, ensure the integrity of the overall structure, and when the spring becomes loose after long-term use, it can also be quickly adjusted by rotating the external connecting piece, which is more convenient.

[0005] The utility model is achieved through the following technical solutions:

[0006] A device for adjusting the tightness of a rotating shaft includes a window screen frame composed of an upper frame, a lower frame, and two groups of symmetrically arranged storage boxes. A lower rotating seat shell is fixedly connected to the connection between one group of the storage boxes and the lower frame, and an upper rotating seat shell is fixedly connected to the connection between the storage box and the upper frame. Gaskets are rotatably connected to the outside of both the lower rotating seat shell and the upper rotating seat shell. A rotating shaft is clamped between the two groups of gaskets. A connecting piece is rotatably connected to the bottom of the lower rotating seat shell, and an adjusting mechanism is installed inside the rotating shaft.

[0007] Preferably, first mounting holes and second mounting holes are respectively opened on the outside of both the lower rotating seat shell and the upper rotating seat shell.

[0008] Preferably, a third mounting hole is formed in the bottom of the lower frame, and the connecting member is completely exposed through the third mounting hole.

[0009] Preferably, a hexagonal groove is formed in the bottom of the connecting member.

[0010] Preferably, the adjusting mechanism includes a rotating member, a spring and a transmission member. The rotating member is fixedly connected to the connecting member, and the rotating member is rotatably connected to the lower rotating seat housing. The spring is fixedly connected to the rotating member, and the transmission member is fixedly connected to the end of the spring.

[0011] Preferably, the transmission member is clamped with the rotating shaft.

[0012] Preferably, a buffer member is rotatably connected to the inner side of the upper rotating seat housing. The bottom of the buffer member is fixedly connected to the buffer rotating member, and the buffer rotating member is clamped with the rotating shaft.

[0013] Preferably, a hook is formed on the outside of the connecting member, and the hook is clamped with the lower rotating seat housing.

[0014] The technical solution of the present utility model has at least the following beneficial effects:

[0015] A rotating shaft tightness adjusting device proposed by the present utility model can take out a tool that fits the hexagonal groove at the bottom of the connecting member when the screen window is in use. By rotating the connecting member, the internal rotating member can be rotated. The rotating member drives the spring and the transmission member to rotate. Since the transmission member is clamped with the rotating shaft, the rotating shaft will also rotate due to the torsion of the spring, so that the tightness can be adjusted according to actual use, ensuring that while the screen mesh can be normally stored, the impact force of the connecting rod on the storage box is reduced to the minimum, ensuring the integrity of the overall structure. And when the spring becomes loose after long-term use, it can also be quickly adjusted by rotating the connecting member externally, which is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the first assembly schematic diagram of the screen window of the present utility model;

[0017] Figure 2 is the second assembly schematic diagram of the screen window of the present utility model;

[0018] Figure 3 is the overall structure schematic diagram of the present utility model;

[0019] Figure 4 is Figure 3 the enlarged view of A in

[0020] Figure 5 is the structural disassembly diagram of the present utility model;

[0021] Figure 6Figure 5 Enlarged view of B in

[0022] Figure 7 is Figure 5 Enlarged view of C in

[0023] Figure 8 is Figure 2 Enlarged view of D in

[0024] Figure 9 is Figure 5 Enlarged view of E in

[0025] Icons: 1. Upper frame; 2. Storage box; 3. Lower frame; 4. Lower swivel housing; 5. Spacer; 6. Rotating shaft; 7. Connecting piece; 8. Rotating piece; 9. Spring; 10. Transmission piece; 11. Buffer piece; 12. Buffer rotating piece; 13. First mounting hole; 14. Second mounting hole; 15. Third mounting hole; 16. Upper swivel housing; 17. Hook. Specific implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1-8 , a rotating shaft tightness adjustment device proposed by the present invention includes a window screen frame composed of an upper frame 1, a lower frame 3, and two groups of symmetrically arranged storage boxes 2. A lower swivel housing 4 is fixedly connected to the connection between one group of storage boxes 2 and the lower frame 3, and an upper swivel housing 16 is fixedly connected to the connection between the storage box 2 and the upper frame 1. Gaskets 5 are rotatably connected to the outside of the lower swivel housing 4 and the upper swivel housing 16. A rotating shaft 6 is clamped between the two gaskets 5. A connecting piece 7 is rotatably connected to the bottom of the lower swivel housing 4, and an adjustment mechanism is installed inside the rotating shaft 6.

[0028] First mounting holes 13 and second mounting holes 14 are provided on the outside of the lower swivel housing 4 and the upper swivel housing 16. The mounting holes facilitate the installation of the lower swivel housing 4 and the upper swivel housing 16 with the upper frame 1, the lower frame 3, and the storage box 2.

[0029] A third mounting hole 15 is provided at the bottom of the lower frame 3, and the third mounting hole 15 completely exposes the connecting piece 7. A hexagonal groove is provided at the bottom of the connecting piece 7. By using a specific tool to connect to the hexagonal groove, the connecting piece 7 can be rotated.

[0030] The adjusting mechanism includes a rotating member 8, a spring 9 and a transmission member 10. The rotating member 8 is fixedly connected to the connecting member 7, and the rotating member 8 is rotatably connected to the lower rotating seat shell 4. The spring 9 is fixedly connected to the rotating member 8, and the transmission member 10 is fixedly connected to the end of the spring 9.

[0031] The transmission member 10 is clamped with the rotating shaft 6.

[0032] A buffer member 11 is rotatably connected to the inner side of the upper rotating seat shell 16. The bottom of the buffer member 11 is fixedly connected to the buffer rotating member 12, and the buffer rotating member 12 is clamped with the rotating shaft 6. When the light-shielding cloth rebounds, the buffer member 11 and the buffer rotating member 12 cooperate to reduce the rebound speed and play a certain buffering role.

[0033] A hook 17 is provided on the outside of the connecting member 7, and the hook 17 is clamped with the lower rotating seat shell 4. The hook 17 can achieve a self-locking effect to prevent the spring 9 from rebounding too much and causing the rewinding force to decrease.

[0034] Based on the working principle of a rotating shaft tightening and loosening adjusting device according to the embodiment, when the screen window is in use, the connecting rod will drive the screen mesh to extend, so that the spring 9 can be stretched. When the screen mesh needs to be stored, the connecting rod can be released. At this time, under the reset action of the spring 9, the screen mesh will be driven to be stored, and at the same time, the connecting rod will abut against the storage box 2. Since the spring 9 reset will give the connecting rod a kinetic energy, if the force is too large, the connecting rod will violently impact the storage box 2, but if the force is too small, the screen mesh cannot be stored. Therefore, it is necessary to adjust the initial tightening torque of the spring 9. At this time, a tool that fits the hexagonal groove at the bottom of the connecting member 7 can be taken out, and by rotating the connecting member 7, the internal rotating member 8 can be rotated. Since the rotating member 8 is fixedly connected to the spring 9, the spring 9 is fixedly connected to the transmission member 10, and the transmission member 10 is clamped with the rotating shaft 6, when the rotating member 8 rotates, the rotating shaft 6 will move in the same direction. If the rotating shaft 6 is subjected to an external force in the opposite direction, the spring 9 will be compressed to increase the torque, and vice versa, the torque of the spring 9 can be reduced, so that it is convenient to adjust its tightness according to actual use, ensure that the connecting rod impacts the storage box 2 with the minimum force while the screen mesh can be normally stored, ensure the integrity of the overall structure, and when the spring 9 is loose after long-term use, it can also be quickly adjusted by rotating the connecting member 7 externally, which is more convenient.

[0035] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A shaft tightness adjustment device, characterized in that: A screen window frame composed of an upper frame (1), a lower frame (3), and two groups of symmetrically arranged storage boxes (2). A lower rotating seat shell (4) is fixedly connected to the connection part between one group of the storage boxes (2) and the lower frame (3), and an upper rotating seat shell (16) is fixedly connected to the connection part between the storage box (2) and the upper frame (1). Gaskets (5) are rotatably connected to the outside of the lower rotating seat shell (4) and the upper rotating seat shell (16). A rotating shaft (6) is clamped between the two gaskets (5). A connecting piece (7) is rotatably connected to the bottom of the lower rotating seat shell (4). An adjusting mechanism is installed inside the rotating shaft (6).

2. The shaft tightness adjustment device according to claim 1, characterized in that: First mounting holes (13) and second mounting holes (14) are provided on the outside of the lower rotating seat shell (4) and the upper rotating seat shell (16).

3. The shaft tightness adjustment device according to claim 1, characterized in that: A third mounting hole (15) is provided at the bottom of the lower frame (3), and the connecting piece (7) is completely exposed through the third mounting hole (15).

4. The shaft tightness adjustment device according to claim 1, characterized in that: A hexagonal groove is provided at the bottom of the connecting piece (7).

5. The shaft tightening and loosening adjustment device according to claim 1, wherein: The adjusting mechanism includes a rotating part (8), a spring (9), and a transmission part (10). The rotating part (8) is fixedly connected to the connecting piece (7), and the rotating part (8) is rotatably connected to the lower rotating seat shell (4). The spring (9) is fixedly connected to the rotating part (8). The transmission part (10) is fixedly connected to the end of the spring (9).

6. The shaft tightness adjusting device according to claim 5, characterized in that: The transmission part (10) is clamped with the rotating shaft (6).

7. A shaft tightness adjusting device according to claim 1, characterized in that: A buffer part (11) is rotatably connected to the inside of the upper rotating seat shell (16). The bottom of the buffer part (11) is fixedly connected to a buffer rotating part (12), and the buffer rotating part (12) is clamped with the rotating shaft (6).

8. A shaft tightness adjusting device according to claim 1, characterized in that: A hook (17) is provided on the outside of the connecting piece (7), and the hook (17) is clamped with the lower rotating seat shell (4).

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