Screen window pull rod balance adjusting mechanism
By installing the stretching mechanism and locking mechanism on the corner code of the screen pull rod, the problem of tilting or stuck due to unbalanced friction is solved, and a balanced effect is achieved that facilitates adjustment and locking is achieved, ensuring that the screen window opening and closing normally.
Patent Information
- Application Number
- CN202422159294.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-09-03
AI Technical Summary
During long-term use, the existing screen lever may tilt or get stuck due to unbalanced friction during the friction, and cannot be opened and closed normally, causing inconvenience and safety hazards to users.
A screen pull rod balance adjustment mechanism is designed. By installing a stretching mechanism and a locking mechanism on the angle code of the pull rod, the tensioning mechanism is used to achieve balance adjustment and locking of the pull rod by using the cooperation of tightening gears, transverse holes, rotating shafts and springs, and preventing structural imbalance.
The effect of easy adjustment of the pull rod is achieved to return balance, and after the adjustment is completed, the clamp plate is driven to reset by a spring to clamp the tightening gear to avoid structural imbalance and ensure that the screen window is opened and closed normally.
Smart Images
Figure CN222962773U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of window screens, and more specifically, to a balance adjustment mechanism for a window screen pull rod. Background Art
[0002] In the existing window screen designs, as an important component for controlling the opening and closing of the window screen, the stability and smoothness of the window screen pull rod are directly related to the user experience and safety. During the long-term use of traditional window screen pull rods, due to differences in materials, wear degrees, installation accuracies, etc. between the sliding contact surfaces on the upper and lower sides and the upper frame and the lower frame, the frictional forces on the upper and lower sides are often unbalanced. This unbalanced state may only manifest as a slight sense of blockage when the pull rod slides in the initial stage, but over time, the frictional force difference gradually increases, which may cause the pull rod to tilt or even become stuck with the upper frame or the lower frame, resulting in the window screen being unable to open and close normally, bringing great inconvenience and potential safety hazards to users.
[0003] To solve the above problems, although there are already some designs for adjusting the balance of the pull rod on the market, most of these designs have complex structures, cumbersome operations, and often require precise adjustment before the window screen is installed. Once the installation is completed, it is very difficult to make subsequent adjustments. In addition, some designs lack an effective locking mechanism after adjustment and are prone to becoming unbalanced again due to external forces or long-term use. Therefore, in view of the above technical problems, a balance adjustment mechanism for a window screen pull rod is proposed here. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a balance adjustment mechanism for a window screen pull rod, which can achieve the effect of facilitating the adjustment of the pull rod to return to balance. After the adjustment is completed, the stretched spring will drive the clamping plate to reset and clamp the wire tightening gear to avoid structural imbalance.
[0005] The utility model is realized through the following technical solutions:
[0006] A balance adjustment mechanism for a window screen pull rod includes a window screen frame composed of an upper frame, a lower frame, and two groups of symmetrically arranged side frames. Angle codes are fixedly connected to the joints of one group of the side frames with the upper frame and the lower frame. A first installation groove is formed on the outside of the angle code, a stretching mechanism is installed inside the first installation groove, a second installation groove is formed on one side of the first installation groove, and a locking mechanism is installed inside the second installation groove.
[0007] Preferably, a first installation hole and a second installation hole are formed on the outside of the angle code. The angle code is fixedly connected to the side frame through the second installation hole, and the angle code is fixedly connected to the upper frame and the lower frame through the first installation hole.
[0008] Preferably, the stretching mechanism includes a wire-tightening gear, a transverse hole, a rotating shaft, and a through hole. The wire-tightening gear is slidably connected to the inside of the first mounting groove. The transverse hole is formed in the outer part of the wire-tightening gear. The rotating shaft is fixedly connected to the transverse hole and passes through the corner fitting and is rotatably connected thereto. The through hole is formed in the outer part of the rotating shaft.
[0009] Preferably, a connection groove is formed in the outer part of the side frame, and the connection groove completely exposes the transverse hole formed outside the wire-tightening gear.
[0010] Preferably, the locking mechanism includes a clamping plate, a connecting plate, a connecting block, and a spring. Connecting blocks are fixedly connected to both sides of the clamping plate and the inside of the connecting plate, and the spring is fixedly connected between the two groups of connecting blocks.
[0011] Preferably, the clamping plate is engaged with the wire-tightening gear.
[0012] The technical solution of the present utility model has at least the following beneficial effects:
[0013] For a window screen pull rod balance adjustment mechanism proposed by the present utility model, when the pull rod is inclined and jammed with the side frame and cannot slide, at this time, take out the iron sheet and insert it into the transverse hole outside the wire-tightening gear, and rotate it forcefully, the wire-tightening gear can be made to abut against the clamping plate to drive the spring to move outward, so that the wire-tightening gear can rotate, and the rotating shaft can pull the pull rope connected to the through hole to stretch, so as to adjust the pull rod to return to the balanced position, achieving the effect of facilitating the adjustment of the pull rod to return to balance. And after the adjustment is completed, the stretched spring will drive the clamping plate to reset and lock the wire-tightening gear to prevent the structure from losing balance. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic view of the window screen assembly of the present utility model;
[0015] Figure 2 is a schematic view of the overall structure of the present utility model;
[0016] Figure 3 is Figure 2 an enlarged view of A in
[0017] Figure 4 is a schematic view of the partial structure of the present utility model;
[0018] Figure 5 is Figure 4 an enlarged view of B in
[0019] Figure 6 is a partial side cross-sectional view of the present utility model;
[0020] Figure 7 is Figure 6 an enlarged view of C in
[0021] Figure 8 For Figure 1 An enlarged view of D in;
[0022] Icon: 1. Upper frame; 2. Side frame; 3. Lower frame; 4. Corner code; 5. First installation groove; 6. Tightening wire gear; 7. Horizontal hole; 8. Rotating shaft; 9. Through hole; 10. Second installation groove; 11. Card plate; 12. Connecting plate; 13. Connecting block; 14. Spring; 15. First installation hole; 16. Second installation hole; 17. Connecting groove. Specific embodiments
[0023] 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.
[0024] Please refer to Figure 1-8 , a screen window pull rod balance adjustment mechanism proposed by the present invention includes a screen window frame composed of an upper frame 1, a lower frame 3, and two groups of symmetrically arranged side frames 2. A corner code 4 is fixedly connected to the joints of one group of side frames 2 with the upper frame 1 and the lower frame 3. A first installation groove 5 is opened on the outside of the corner code 4, a stretching mechanism is installed inside the first installation groove 5, a second installation groove 10 is opened on one side of the first installation groove 5, and a locking mechanism is installed inside the second installation groove 10.
[0025] A first installation hole 15 and a second installation hole 16 are opened on the outside of the corner code 4. The corner code 4 is fixedly connected to the side frame 2 through the second installation hole 16, and the corner code 4 is fixedly connected to the upper frame 1 and the lower frame 3 through the first installation hole 15.
[0026] The stretching mechanism includes a tightening wire gear 6, a horizontal hole 7, a rotating shaft 8, and a through hole 9. The tightening wire gear 6 is slidably connected to the inside of the first installation groove 5. The horizontal hole 7 is opened on the outside of the tightening wire gear 6. The rotating shaft 8 is fixedly connected to the horizontal hole 7, and the rotating shaft 8 passes through the corner code 4 and is rotatably connected thereto. The through hole 9 is opened on the outside of the rotating shaft 8.
[0027] A connecting groove 17 is opened on the outside of the side frame 2, and the connecting groove 17 completely exposes the horizontal hole 7 opened outside the tightening wire gear 6, facilitating the adjustment of the pull rod balance.
[0028] The locking mechanism includes a card plate 11, a connecting plate 12, a connecting block 13, and a spring 14. Connecting blocks 13 are fixedly connected to both sides of the card plate 11 and the inside of the connecting plate 12. The spring 14 is fixedly connected between the two groups of connecting blocks 13.
[0029] The pallet 11 is clamped with the wire tightening gear 6, which can prevent the wire tightening gear 6 from rotating easily and play a limiting role.
[0030] Based on the working principle of a window screen pull rod balance adjustment mechanism in the embodiment, when the window screen is in use, there will be sliding friction between the left and right sides of the window screen pull rod and the side frame 2. When the frictional forces on the left and right sides are unbalanced, the pull rod may tilt and get stuck with the side frame 2 and cannot slide. At this time, take out the patch and insert it into the horizontal hole 7 outside the wire tightening gear 6, and rotate it forcefully. At this time, under the condition of a large acting force, the wire tightening gear 6 can be made to abut against the pallet 11 and drive the spring 14 to move outwards, so that the wire tightening gear 6 can rotate, and the rotating shaft 8 can pull the pull rope connecting the through hole 9 and the pull rod to be stretched, so as to adjust the pull rod to return to the balanced position, achieving the effect of facilitating the adjustment of the pull rod to return to balance. And after the adjustment is completed, the stretched spring 14 will drive the pallet 11 to reset and clamp and lock the wire tightening gear 6 to avoid structural imbalance.
[0031] 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 screen window pull rod balance adjustment mechanism, characterized in that: The invention relates to a screen window frame comprising an upper frame (1), a lower frame (3) and two groups of symmetrically arranged side frames (2), wherein a group of the side frames (2) are fixedly connected to the upper frame (1) and the lower frame (3) at their connection points with an angle code (4), a first installation groove (5) is provided on the outside of the angle code (4), a stretching mechanism is installed inside the first installation groove (5), a second installation groove (10) is provided on one side of the first installation groove (5), and a locking mechanism is installed inside the second installation groove (10).
2. A screen window pull rod balance adjustment mechanism according to claim 1, characterized in that: The corner bracket (4) is provided with a first mounting hole (15) and a second mounting hole (16) on the outside; the corner bracket (4) is fixedly connected to the side frame (2) via the second mounting hole (16); and the corner bracket (4) is fixedly connected to the upper frame (1) and the lower frame (3) via the first mounting hole (15).
3. A screen window pull rod balance adjustment mechanism according to claim 1, characterized in that: The stretching mechanism comprises a tensioning gear (6), a transverse hole (7), a rotating shaft (8) and a through hole (9); the tensioning gear (6) is slidably connected to the inner side of the first mounting groove (5); the transverse hole (7) is opened outside the tensioning gear (6); the rotating shaft (8) and the transverse hole (7) are fixedly connected, and the rotating shaft (8) passes through the angle code (4) and is rotationally connected thereto; and the through hole (9) is opened outside the rotating shaft (8).
4. A screen window pull rod balance adjustment mechanism according to claim 3, characterized in that: A connecting groove (17) is provided on the outside of the side frame (2), and the connecting groove (17) completely exposes the transverse hole (7) provided on the outside of the tensioning gear (6).
5. A screen window pull rod balance adjustment mechanism according to claim 3, characterized in that: The locking mechanism comprises a clamping plate (11), a connecting plate (12), a connecting block (13) and a spring (14); the two sides and the inner side of the connecting plate (12) are fixedly connected with the connecting blocks (13); and the spring (14) is fixedly connected between two groups of the connecting blocks (13).
6. A screen window pull rod balance adjustment mechanism according to claim 5, characterized in that: The clamping plate (11) is clamped with the wire tightening gear (6).