Anti-sinking hardware fitting for doors and windows
By designing guide grooves for lock seats and guide seats in anti-sag hardware for doors and windows, and using a handle transmission mechanism to drive the rollers, the problem of hard friction caused by sagging of door and window sashes is solved, achieving smooth opening and closing of doors and windows and improving the user experience.
Patent Information
- Application Number
- CN202520097708.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing door and window sashes tend to sag after installation, and the support and lifting components experience hard friction during use, resulting in doors and windows not closing smoothly and a poor user experience.
A door and window anti-sinking hardware accessory was designed, including a lock seat and a guide seat installed on the frame profile. The guide seat is provided with a guide groove, and the roller moves in the guide groove. The roller is driven to sink or rise through the handle transmission mechanism to achieve contact or separation with the locking platform and avoid hard friction.
It enables smooth opening and closing of doors and windows, improving the user experience and avoiding hard friction during the opening and closing process.
Smart Images

Figure CN223805986U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of anti-sinking hardware fittings for doors and windows, belong to door and window hardware fittings technical field. BACKGROUND
[0002] After existing door and window leaf is installed, to prevent window leaf deformation, support and lifting piece between door and window frame and door and window leaf are equipped to support door and window leaf when closing door and window leaf to prevent door and window leaf from drooping. After long use, door and window leaf will have droop, and support and lifting piece are prone to hard friction, so that door and window is not smooth, and the use experience is poor. SUMMARY
[0003] The utility model aims at solving the defects that the use feeling of the existing hardware fittings for preventing door and window leaf from drooping is poor, and provides a kind of anti-sinking hardware fittings for doors and windows, which is smooth to open and close, and has good use experience.
[0004] The utility model is realized by the following technical schemes:
[0005] The anti-sinking hardware fittings for doors and windows comprises a lock seat installed on a frame profile, an axially extending lock block is provided at the end of the lock seat, a guide seat is provided on the lock block and partially covers the lock block, a guide sliding groove is provided on the guide seat along the transmission direction, a roller is provided on the guide seat and can move along the guide sliding groove, and the roller sinks or rises during the movement in the guide sliding groove to abut against or separate from the lock block.
[0006] The anti-sinking hardware fittings for doors and windows described above is characterized in that the roller is connected with the transmission member of the handle transmission mechanism, and the stroke of the guide sliding groove comprises a lock segment near the lock block at one end and an unlocking segment away from the lock block at the other end.
[0007] The anti-sinking hardware fittings for doors and windows described above is characterized in that the guide sliding groove is a Z-shaped groove, the lock segment and the unlocking segment are axially straight grooves with different heights, and a transition inclined groove is provided between the lock segment and the unlocking segment.
[0008] The anti-sinking hardware fittings for doors and windows described above is characterized in that the unlocking segment is an axially straight groove, and the lock segment is an inclined groove or an arc-shaped groove.
[0009] The anti-sinking hardware fittings for doors and windows described above is characterized in that the roller is connected with the transmission member of the handle transmission mechanism through a connecting member, and the connecting member is slidingly sleeved on the guide seat.
[0010] The anti-sinking hardware fitting for doors and windows as described above is characterized in that the free end of the connecting piece is provided with a roller seat, the roller is slidably arranged in the roller seat, and the proximal end of the guide seat is provided with a fixed shaft connected with the fan profile.
[0011] The anti-sinking hardware fitting for doors and windows as described above is characterized in that the guide seat is symmetrically provided with a guide sliding groove on both sides, the roller is provided with a connecting shaft, and the connecting shaft is movably connected with the roller seat and passes through the guide sliding groove.
[0012] The anti-sinking hardware fitting for doors and windows as described above is characterized in that the lock seat is provided with a locking platform at both ends.
[0013] The anti-sinking hardware fitting for doors and windows as described above is characterized in that the transmission piece is connected with a lock point matched with the lock seat for locking or unlocking.
[0014] The anti-sinking hardware fitting for doors and windows as described above is characterized in that the lock seat is axially provided with a protruding rib preventing the lock point from sliding out of the sliding groove.
[0015] Compared with the prior art, the anti-sinking hardware fitting for doors and windows has the following advantages:
[0016] The anti-sinking hardware fitting for doors and windows has the following advantages: BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 Figure 6 is a structural schematic diagram of the anti-sinking hardware fitting for doors and windows in the locked state;
[0018] Figure 2 Figure 7 is a partial structural exploded schematic diagram of the anti-sinking hardware fitting for doors and windows;
[0019] Figure 3 Figure 8 is a structural schematic diagram of the anti-sinking hardware fitting for doors and windows in the locked state;
[0020] Figure 4 Figure 9 is a structural schematic diagram of the anti-sinking hardware fitting for doors and windows in the unlocked state, in which the lock point can be separated from the lock seat;
[0021] Figure 5 Figure 10 is a structural schematic diagram of the anti-sinking hardware fitting for doors and windows in the unlocked state, in which the lock point cannot be separated from the lock seat. DETAILED DESCRIPTION
[0022] The utility model will be further explained in detail in connection with specific embodiments.
[0023] As Figures 1-5 The door and window anti-sinking hardware fitting comprises a lock seat 1 installed on a frame profile, an axially extending locking table 11 is arranged at the end of the lock seat 1, a guide seat 2 is arranged on the locking table 11 and partially covers the locking table 11, the guide seat 2 is provided with a guide sliding groove 21 in the transmission direction, the guide seat 2 is provided with a roller 3 capable of moving along the guide sliding groove 21, and the roller 3 sinks or rises in the moving process of the guide sliding groove 21 to realize the abutment or separation of the locking table 11. Preferably, the roller 3 is connected with a transmission part 4 of a handle transmission mechanism, and in the process of rotating the handle, the roller 3 is driven to move to abut or separate from the locking table 11, so that the door and window leaf can be smoothly opened and closed.
[0024] Further, the stroke of the guide sliding groove 21 comprises a locking section 211 near the locking table 11 at one end and an unlocking section 212 far from the locking table 11 at the other end, the roller 3 sinks in the locking section 211, the peripheral surface of the roller abuts against the locking table 11 to support and close the door and window leaf, the roller rises in the unlocking section 212, the peripheral surface of the roller is separated from the locking table 11, and the door and window leaf can be quickly opened.
[0025] In a preferred embodiment of the utility model, the guide sliding groove 21 is a Z-shaped groove, the locking section 211 and the unlocking section 212 are axially straight grooves with different heights, and a transition inclined groove 213 is arranged between the locking section 211 and the unlocking section 212, which is beneficial to the smooth movement of the roller 3 in the guide sliding groove 21.
[0026] In a preferred embodiment of the utility model, the unlocking section 212 is an axially straight groove, the locking section 211 is an inclined groove or an arc-shaped groove, the axially straight groove extends in the direction of the lock seat 1 to form a downward inclined groove or an arc-shaped groove, and the locking section is formed.
[0027] Further, in order to enhance the tensile structural strength of the roller 3 during movement, the roller 3 is connected with the transmission part 4 of the handle transmission mechanism through a connecting part 5, the connecting part 5 is slidingly sleeved on the guide seat 2, and the connecting part 5 drives the roller 3 to move in the guide sliding groove 21. Preferably, the free end of the connecting part 5 is provided with a roller seat 51, the roller 3 is slidingly arranged in the roller seat 51, and specifically, the roller seat 51 is provided with an inclined groove 511 matched with the lifting and moving of the roller 3 in the guide sliding groove 21, and the end near the lock seat 1 of the guide seat 2 is provided with a fixed shaft 22 connected with the leaf profile. The fixed shaft 22 is located between the roller seat 51 and the lock seat 1, so as to prevent the roller seat 51 from moving excessively and causing impact damage.
[0028] Preferably, the guide seat 2 is symmetrically provided with the guide sliding groove 21 on both sides, the roller 3 is provided with a connecting shaft 31, the connecting shaft 31 is movably connected with the roller seat 51 and passes through the guide sliding groove 21, so that the roller 3 moves along the guide sliding grooves 21 on both sides, the movement stability of the roller 3 is ensured, and movement hindrance caused by misalignment is avoided.
[0029] Preferably, both ends of the lock base 1 are provided with locking platforms 11, which is beneficial for symmetrical applicability during installation.
[0030] The transmission component 4 is connected to a locking point 6 that cooperates with the lock seat 1 to lock or unlock. When this utility model is applied to an inward-opening and tilting window sash, the lock seat 1 is preferably provided with a convex rib 12 in the axial direction to prevent the locking point 6 from coming out of its sliding groove. The convex rib 12 extends radially inward from the top of the side wall.
[0031] In this utility model, the guide seat 2 is preferably fixedly connected to the fixing component of the corner bracket 6 of the door / window sash. When the door / window sash needs to be closed, the handle is rotated, and the transmission component 4 moves away from the lock seat 1, thereby pulling the roller 3 to the locking section 211 of the guide groove 21. Figure 3 As shown, roller 3 abuts against the load-bearing door and window sash with locking platform 11 to support and close the door and window; when opening the door and window sash, rotating the handle moves the transmission component 4 towards the lock seat 1, thereby pushing roller 3 to the unlocking section 212 of the guide groove 21, as shown. Figure 4 As shown, in the first half of the unlocking section 212, the roller 3 separates from the locking platform 11, and the locking point 6 moves to the opening of the lock base 1, allowing the door and window to be opened from the side. The roller 3 continues to move to the end of the unlocking section 212, as shown. Figure 5 As shown, the locking point 6 moves to the other end of the locking seat 1 to keep the locking seat and the locking point locked, and the roller 3 remains separated from the locking platform 11, so that the door and window can be opened by tilting inward.
Claims
1. Anti-sagging hardware fitting for doors and windows, characterized in that: The application relates to a lock seat (1) mounted on a frame profile, wherein the lock seat (1) is provided with an axially extending locking platform (11) at the end, the guiding seat (2) mounted on the fan profile and partially covering the locking platform is arranged on the locking platform (11), the guiding seat (2) is provided with a guide sliding groove (21) in the transmission direction, the guiding seat (2) is provided with a roller (3) capable of moving along the guide sliding groove (21), and the roller (3) sinks or rises in the moving process of the guide sliding groove (21) so as to abut against or separate from the locking platform (11).
2. The sink-preventing hardware fitting for doors and windows according to claim 1, characterized in that The roller (3) is connected with a transmission part (4) of a handle transmission mechanism, the stroke of the guide sliding groove (21) comprises a locking section (211) near the locking platform (11) and an unlocking section (212) far from the locking platform (11).
3. The sink-blocking hardware fitting for doors and windows according to claim 2, characterized in that The guide sliding groove (21) is a Z-shaped groove, the locking section (211) and the unlocking section (212) are axially straight grooves with different heights, and a transition inclined groove (213) is arranged between the locking section (211) and the unlocking section (212).
4. The sink-blocking hardware fitting for doors and windows according to claim 2, characterized in that The unlocking section (212) is an axially straight groove, and the locking section (211) is an inclined groove or an arc-shaped groove.
5. The sink-blocking hardware fitting for doors and windows according to claim 2, characterized in that The roller (3) is connected with the transmission part (4) of the handle transmission mechanism through a connecting part (5), and the connecting part (5) is slidingly sleeved on the guiding seat (2).
6. The anti-sag hardware fitting for doors and windows according to claim 5, characterized in that A roller seat (51) is arranged at the free end of the connecting part (5), the roller (3) is slidingly arranged on the roller seat (51), and the guiding seat (2) is provided with a fixed shaft (22) connected with the fan profile near the lock seat (1).
7. The anti-sag hardware fitting for doors and windows according to claim 6, characterized in that The guiding seat (2) is symmetrically provided with the guide sliding grooves (21) on both sides, the roller (3) is provided with a connecting shaft (31), the connecting shaft (31) is movably connected with the roller seat (51) and passes through the guide sliding grooves (21).
8. The anti-sag hardware fitting for doors and windows according to claim 1, characterized in that The lock seat (1) is provided with the locking platform (11) at both ends.
9. The anti-sag hardware fitting for doors and windows according to claim 2, characterized in that The transmission part (4) is connected with a lock point (6) matched with the lock seat (1) to lock or unlock.
10. The anti-sag hardware fitting for doors and windows according to claim 9, characterized in that The lock seat (1) is axially provided with a protruding rib (12) preventing the lock point (6) from being separated from the sliding groove.