Door and window locking block
By introducing a retractable T-piece and spring combination into the door and window lock block, the problem of improper cooperation between the lock tongue and the lock block caused by thermal expansion and contraction is solved, and normal switching and noise reduction of doors and windows is achieved.
Patent Information
- Application Number
- CN202422384282.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-29
AI Technical Summary
Existing door and window locks cannot adapt to the deformation caused by thermal expansion and contraction of solid wood profiles, resulting in improper cooperation between the lock tongue and the lock block, and the lock block cannot be locked normally or noise is generated.
A door and window lock block is designed, including a T-shaped piece and a bottom plate. Through the combination of screws and springs, the T-shaped piece can be retractable and adjusted to adapt to the deformation of door and window frames and ensure that the lock tongue and lock block are in close contact.
The normal locking of doors and windows under thermal expansion and contraction is achieved, reducing the generation of locking noise, and improving the matching strength and smoothness of the lock tongue and lock block.
Smart Images
Figure CN223241219U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of door and window locks, in particular to a door and window lock block. Background Art
[0002] Door and window locks are an important part of doors and windows, and play a key role in the opening and closing of doors and windows. Due to the original thermal expansion and contraction properties of solid wood profiles, the size of the door and window frames will be deformed, resulting in the inflexibility of opening and closing doors and windows. Existing door and window locks can only adjust the tightness of the transmission lock tongue, and cannot make the door and window lock block adapt to the changes of the door and window frames. Therefore, it cannot completely solve the problem that the door and window frames are deformed due to thermal expansion and contraction of the profiles, resulting in shrinkage or enlargement, thereby causing the transmission lock tongue to collide with the lock block or fail to lock normally. Utility Model Content
[0003] The purpose of the utility model is to provide a door and window lock block which can adapt to the deformation of door and window frames due to thermal expansion and contraction and ensure smooth opening and closing of doors and windows.
[0004] The utility model includes a base and a locking strip located at the outer side of the base, a locking tongue groove is provided on the inner side of the locking strip, the base includes its bottom plate, and it also includes a T-shaped piece, the locking strip is the top rod of the T-shaped piece, a screw is screwed on the T-shaped piece, a spring is sleeved on the screw between the T-shaped piece and the bottom plate, and the screw and the bottom plate are movably matched; a lower step hole with a larger bottom and a smaller top is provided on the bottom plate, and a stopper is provided in the lower step hole to match its step surface.
[0005] Furthermore, the T-shaped piece is provided with an upper stepped hole which is larger at the top and smaller at the bottom, and the small diameter portion thereof is a threaded hole, the screw is screwed into the threaded hole, the bolt head which is integral with the screw is located in the upper stepped hole, the screw passes through the lower stepped hole and is screwed into the block.
[0006] Furthermore, the stopper and the lower step hole matched therewith are adapted polygons.
[0007] Furthermore, an upward protrusion is provided on the bottom plate corresponding to the center beam of the T-shaped member.
[0008] Furthermore, a protrusion is provided in the middle of the inner end of the bottom plate, the outer surface of the protrusion is a plane, and the inner surface of the middle beam of the T-shaped piece matches the outer surface of the protrusion.
[0009] Furthermore, a protruding basic locking strip is provided on the outside of the bottom plate, and a step surface is provided in the middle of the inner side surface of the basic locking strip; the lower surface of the locking strip on the T-shaped piece is in a step shape that matches it, and the lower surface of the locking strip corresponds to the step surface of the basic locking strip.
[0010] Furthermore, at least two guide grooves are provided on the step surface of the basic locking strip, and guide posts cooperating with the guide grooves are provided on the lower surface of the locking strip.
[0011] Beneficial effects of the utility model:
[0012] The utility model is provided with a T-shaped piece and a screw rod which passes through the T-shaped piece and the bottom plate and cooperates with the stopper. The screw rod is sleeved with a spring, and the spring is located between the T-shaped piece and the bottom plate. The screw rod is fixedly cooperated with the T-shaped piece through a thread and movably cooperates with the bottom plate, so that the T-shaped piece and the bottom plate are movably connected. Under the action of the spring, the T-shaped piece has a certain telescopic distance, so the telescopic distance of the T-shaped piece is automatically adjusted according to the deformation of the door and window, so that the T-shaped piece is in close contact with the lock tongue, avoiding the phenomenon that the window cannot be locked normally due to the change of the cooperation between the lock tongue and the lock block due to thermal expansion and contraction of the door and window profiles, and reducing the possibility of noise after the door and window are locked.
[0013] After a protrusion is provided in the middle of the inner end of the bottom plate of the utility model, and a protruding basic locking strip is further provided on the outer side of the bottom plate, the outer surface of the protrusion cooperates with the inner surface of the middle beam of the T-shaped piece, and a step surface is provided in the middle of the inner side surface of the basic locking strip. The lower surface of the locking strip on the outer side of the T-shaped piece is stepped and corresponds to the step surface of the basic locking strip, so that the bottom plate has a good guiding effect and positioning effect on the T-shaped piece, and when the deformation of the door and window is small, a part of the lock tongue cooperates with the basic locking strip of the bottom plate, so that the cooperation strength between the lock tongue and the lock block is higher.
[0014] A guide groove is further provided on the step surface of the basic locking strip, and a guide column cooperating with the guide groove is provided on the lower surface of the locking strip, which further strengthens the force and guiding effect of the locking block. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the utility model;
[0016] Figure 2 for Figure 1 A top view of
[0017] Figure 3 for Figure 2 Cross-sectional view in the AA direction;
[0018] Figure 4 for Figure 1 A three-dimensional image of the midsole plate;
[0019] Figure 5 for Figure 4 The main view;
[0020] Figure 6 for Figure 1 A perspective view of the middle T-shaped piece;
[0021] Figure 7 for Figure 6 The main view;
[0022] In the figure, 1. base plate, 11. basic locking strip, 12. lock tongue groove, 13. countersunk hole, 14. protrusion, 15. guide groove, 16. lower step hole, 17. protrusion, 18. step surface, 2. T-shaped piece, 21. locking strip, 22. middle beam, 23. upper step hole, 24. guide column, 3. screw, 31. bolt head, 4. spring, 5. stopper. DETAILED DESCRIPTION
[0023] Unless otherwise specified, this utility model Figure 3 The directions shown are the described directions, wherein the left side is inside and the right side is outside; the top and bottom of the shown cross section are used to define the top and bottom of this embodiment; and the side facing the shown cross section is the front and the opposite side is the back.
[0024] As shown in the figure, this embodiment includes a base and a locking strip 21 located on the outside of the base; the base includes a bottom plate 1 and a T-shaped piece 2 that cooperates with the bottom plate 1, and a basic locking strip 11 and a protrusion 14 are arranged on the outside and inner ends of the bottom plate 1. The basic locking strip 11 is arranged on the outside of the bottom plate 1, and a step surface 18 is provided in the middle position of the inner side surface of the basic locking strip 11 to cooperate with the locking strip 21 to play a guiding role, and at least two guide grooves 15 are provided on the step surface 18; the protrusion 14 is arranged in the middle of the inner end of the bottom plate 1, and the outer surface of the protrusion 14 is flat.
[0025] The T-shaped member 2 is integrally formed by a top rod and a middle beam 22. The locking strip 21 is the top rod of the T-shaped member 2. The lower surface of the locking strip 21 is stepped, which corresponds to the step surface 18 of the basic locking strip 11 on the outside of the base plate 1, and the lower surface of the locking strip 21 is provided with a guide column 24 that cooperates with the guide groove 15 on the step surface 18 of the basic locking strip 11, thereby strengthening the force and guiding. The middle beam 22 of the T-shaped member 1 is located on the inner side of the top rod, and the inner surface of the middle beam 22 contacts and cooperates with the outer surface of the protrusion 14 in the middle of the inner end of the base plate 1, and is guided by the locking strip 21, so that the guiding effect is better and the positioning effect is very good.
[0026] The lower surface of the middle beam 22 corresponding to the bottom plate 1 is provided with a protrusion 17 upward, which is flush with and connected to the step surface 18 of the basic locking strip 11, and the middle part of the bottom plate 1 is thickened to a certain extent, thereby improving the strength of the bottom plate 1.
[0027] A lock tongue groove 12 is provided on the inner side of the locking strip 21 of this embodiment. The lock tongue groove 12 is located on the front and rear sides of the center beam 22 and is opened to the bottom plate 1, and a countersunk hole 13 is provided on the bottom surface. The base can be fixed to the door and window frame by bolts. The bottom surface of the lock tongue groove 12 is lower than the step surface 18 of the basic locking strip 11. When the deformation of the door and window frame is small and its lock tongue is matched with the lock tongue groove 12, a part of the lock tongue contacts and cooperates with the bottom plate 1, and its basic locking strip 11 acts to apply force to it, thereby improving the strength and strengthening the force.
[0028] The locking strip 21 cooperates with the basic locking strip 11, and its front and rear edges are inclined toward the inside and outside along the center to form an inclined surface at a certain angle to ensure smooth opening and closing of the doors and windows.
[0029] In this embodiment, the base plate 1 is located below the T-shaped member 2, and a lower step hole 16 with a larger lower portion and a smaller upper portion is provided on the base plate 1, and an upper step hole 23 with a larger upper portion and a smaller lower portion is provided on the T-shaped member 2, corresponding to the center of the lower step hole 16 of the base plate 1. The lower step hole 16 and the upper step hole 23 are arranged along the central axis of symmetry of the T-shaped member 2, thereby ensuring uniform force.
[0030] The small diameter portion of the upper step hole 23 is a threaded hole, and the T-shaped piece 2 is screwed with a screw 3 from top to bottom through the threaded hole, that is, a fixed connection is achieved, and the bolt head 31 integral with the screw 3 is located in the upper step hole 23, and its screw 3 passes through the base plate 1 and the T-shaped piece 2. A spring 4 is set on the screw 3 between the base plate 1 and the T-shaped piece 2, and a stopper 5 is provided in the lower step hole 16 that cooperates with its step surface. The stopper 5 and the lower step hole 16 that cooperates with it are adapted polygons. The stopper 5 can be directly screwed with the screw 3 using a hexagonal nut, and the screw 3 is dynamically matched with the lower step hole 16 of the base plate 1, thereby realizing a movable connection between the base plate 1 and the T-shaped piece 2, and under the action of the spring 4, the T-shaped piece 2 has a certain retractable distance.
[0031] The stopper and the lower step hole that cooperates with it adopt a polygonal design. During use, the bolt head 31 integrated with the screw rod 3 in the upper step hole 23 can be directly rotated to adjust the screw connection position of the screw rod 3 and the stopper 5, thereby adjusting the telescopic distance of the T-shaped piece 2 according to the deformation of the door and window frame, which realizes the convenience of adjustment and has a positioning effect; the screw rod 3 can also be screwed from bottom to top. At this time, the stopper can be the bolt head 31, thereby making the overall lightweight.
[0032] During use of this embodiment, first, the outer surface of the protrusion 14 of the base plate 1 and the stepped surface 18 of the basic locking strip 11 are matched with the inner surface of the center beam 22 of the T-shaped member 2 and the lower surface of the locking strip 21 to achieve the guiding and positioning effect. Then, by adjusting the screw 3 and the screw-jointed match of the stopper 5, the telescopic distance of the T-shaped block 2 can be adjusted according to the deformation of the door and window frame, thereby adapting to the deformation of the door and window frame due to thermal expansion and contraction, ensuring the normal locking of the doors and windows, and reducing the possibility of noise after the doors and windows are locked.
Claims
1. A door and window lock block, comprising a base and a locking strip located on the outside of the base, wherein a lock tongue groove is provided on the inside of the locking strip, and wherein: The base includes its bottom plate, which also includes a T-shaped piece. The locking strip is the top rod of the T-shaped piece. A screw is screwed on the T-shaped piece. A spring is mounted on the screw between the T-shaped piece and the bottom plate, and the screw and the bottom plate are movably matched. A lower step hole with a larger bottom and a smaller top is provided on the bottom plate, and a block is provided in the lower step hole to match its step surface.
2. The door and window lock block according to claim 1, characterized in that: The T-shaped piece is provided with an upper stepped hole which is larger at the top and smaller at the bottom. The small diameter part of the hole is a threaded hole. The screw is screwed into the threaded hole. The bolt head which is integrated with the screw is located in the upper stepped hole. The screw passes through the lower stepped hole and is screwed into the stopper.
3. The door and window lock block according to claim 2, characterized in that: The stopper and the lower step hole matched therewith are corresponding polygons.
4. The door and window lock block according to claim 1, 2 or 3, characterized in that: An upward protrusion is provided on the bottom plate corresponding to the middle beam of the T-shaped piece.
5. The door and window lock block according to claim 1, 2 or 3, characterized in that: A protrusion is provided at the middle of the inner end of the bottom plate, the outer surface of the protrusion is a plane, and the inner surface of the middle beam of the T-shaped piece matches the outer surface of the protrusion.
6. The door and window lock block according to claim 1, 2 or 3, characterized in that: A protruding basic locking strip is provided on the outside of the bottom plate, and a step surface is provided on the middle of the inner side of the basic locking strip; the lower surface of the locking strip on the T-shaped piece is in a step shape that matches it, and the lower surface of the locking strip corresponds to the step surface of the basic locking strip.
7. The door and window lock block according to claim 6, characterized in that: At least two guide grooves are arranged on the step surface of the basic locking strip, and guide columns that match the guide grooves are arranged on the lower surface of the locking strip.