Door and window lock and door and window

Abstract

The utility model discloses a door and window lock and a door and window, the automatic locking bolt comprises a fixed base, a bolt spring bolt and an elastic piece, the fixed base is fixed, one end of the bolt spring bolt is provided with an inclined cambered surface or an inclined surface used for extrusion in-place locking, the bolt spring bolt is provided with an accommodating cavity for accommodating the fixed base, and the elastic piece is arranged in the accommodating cavity. The elastic piece is arranged in the containing cavity and pressed on the end face of the fixed base, and the bolt spring bolt moves back and forth relative to the fixed base and is arranged in a limiting mode. According to the automatic locking bolt, the door and window lock and the door and window, a fixed base arranged at the bottom of a bolt spring bolt is fixed in a profile notch through a screw, an elastic piece is arranged in the fixed base for connection so that the bolt spring bolt can move up and down in a limited movement range, the bolt spring bolt is driven by a handle to open a door and window sash, and resetting is conducted through the elastic piece; when the door and window sash is closed, the bolt automatically locks the door and window.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware, in particular to a door and window lock and a door and window. Background Art

[0002] Between the upper and lower horizontal frames of the door body (i.e., the wing fan) and the frame of the known folding, casement, and sliding doors and windows, a traditional locking device of a lock point and a lock seat is adopted to open or lock the door fan.

[0003] Generally, through the rotational movement of the door fan handle or its transmission member, the functions of opening or locking are achieved. Its defects are as follows: both opening and closing require the mechanical movement of the handle or the transmission member to open and close the door fan, and the operation is cumbersome. Especially when the door fan needs to be closed after opening, due to forgetting to retract the latch rod or the operator's misoperation, the locking rod hardware on the folding locking side and the pin rod during movement collide with the upper and lower horizontal frame materials, resulting in scratching of the profiles. There is a lack of a convenient and fast automatic locking latch structure in the market.

[0004] Therefore, the above technical problems need to be solved. Summary of the Invention

[0005] In view of the above technical problems, the utility model provides a door and window lock and a door and window. The fixed base provided at the bottom of the latch tongue is fixed in the screw fixing slot, and an elastic member is arranged inside to connect it so that the latch tongue can move up and down within a limited range of movement. The latch tongue is driven by a handle to open the door and window fan, and is reset by the elastic member. When the door and window fan is closed, the latch automatically locks the door and window.

[0006] To achieve the above object, the technical solution of the utility model is:

[0007] An automatic locking latch includes a fixed base, a latch tongue, and an elastic member. The fixed base is fixed and immovable. One end of the latch tongue is provided with an inclined arc surface or an inclined surface for squeezing into position and locking. The latch tongue is provided with a receiving cavity for accommodating the fixed base. The elastic member is arranged in the receiving cavity and pressed against the end surface of the fixed base. The latch tongue moves back and forth relative to the fixed base and is limitedly arranged.

[0008] The fixed base provided at the bottom of the latch tongue of the automatic locking latch is fixed in the profile slot by screws, and an elastic member is arranged inside to connect it so that the latch tongue can move up and down within a limited range of movement. The latch tongue is driven by a handle to open the door and window fan, and is reset by the elastic member. When the door and window fan is closed, the latch automatically locks the door and window.

[0009] For a further optimized solution, a limiting strip-shaped hole is provided on the fixed base, and a limiting post is provided on the bolt lock tongue, and the limiting post is located within the limiting strip-shaped hole. The limiting post of the bolt lock tongue is arranged within the limiting strip-shaped hole, causing the bolt lock tongue to move back and forth within the range of the limiting strip-shaped hole.

[0010] For a further optimized solution, one end of the fixed base is provided with a column, one end of the accommodating cavity is provided with a mounting hole, and the column is arranged through the mounting hole; the elastic member is a compression spring, and the compression spring is mounted on the column. Using a compression spring as the elastic member has a low cost and is convenient to use. The column of the fixed base passes through the mounting hole of the bolt lock tongue, and the bolt lock tongue moves more smoothly on the fixed seat. The compression spring is installed and fixed through the column, which is stable and reliable.

[0011] For a further optimized solution, snap edges are provided on both sides of the fixed base and are snapped into an external profile slot, and the fixed base is pressed tightly within the profile slot by a set screw. The set screw cooperates with the snap edges to fix the fixed base well, and the structure is simple and convenient to operate.

[0012] For a further optimized solution, a tool hole for passing a tool is provided at a position on the bolt lock tongue corresponding to the set screw. Providing a tool hole for installing the set screw on the bolt lock tongue is convenient for operation.

[0013] For a further optimized solution, the fixed base is locked within an external profile slot by a self-tapping screw. Installing and fixing the fixed base by a self-tapping screw is convenient and fast.

[0014] For a further optimized solution, extension edges are provided on both sides of the bolt lock tongue and are snapped into an external profile slot. The extension edges provided on both sides of the bolt lock tongue and snapped into the profile slot are beneficial for the up and down movement of the bolt lock tongue.

[0015] For a further optimized solution, an external connection post is provided at the other end of the bolt lock tongue opposite to the inclined arc surface. The bolt lock tongue is provided with an external connection post to connect a transmission rod, and the bolt lock tongue is driven to move through the transmission rod to achieve an open state.

[0016] For a further optimized solution, a long-strip-shaped external connection hole is provided at the other end of the bolt lock tongue opposite to the inclined arc surface. The bolt lock tongue is provided with an external connection hole to connect a transmission rod, and the bolt lock tongue is driven to move through the transmission rod to achieve an open state, and the bolt lock tongue moves back and forth within the range of the long-strip-shaped external connection hole.

[0017] A door and window lock is provided with the above-mentioned automatic locking bolt at the upper and lower parts respectively, and the inclined arc surfaces or inclined planes of the upper automatic locking bolt and the lower automatic locking bolt are symmetrically arranged; it also includes a transmission rod, a transmission box and a flat handle. The middle of the transmission box is connected to the flat handle, and both ends are respectively connected to the upper automatic locking bolt and the lower automatic locking bolt through the transmission rod. The movement of the flat handle drives the transmission box and the transmission rod to drive the bolt tongues of the upper automatic locking bolt and the lower automatic locking bolt to retract inward to realize the opening action of the door and window.

[0018] In a further optimized solution, the flat handle includes a handle housing, a handle, a torsion spring and a gear assembly. The front of the handle housing is provided with an inner sunken cavity; the handle is placed inside the inner sunken cavity and has a rotating positioning end and a free end. The rotating positioning end is rotatably connected to the inner sunken cavity, and several tooth structures are provided at this end; the gear assembly is arranged on the back of the handle housing and has a gear, and the gear meshes with the tooth structures; the torsion spring is connected between the handle housing and the handle to force the two to fit elastically.

[0019] The flat handle accommodates the handle through the inner sunken cavity of the handle housing, realizing the hiding of the handle inside the handle housing, and solving the defect that people accidentally bump into the handle; a rotating gear assembly is arranged on the back of the handle housing, so that the flat handle can be applied to the installation and use of extremely narrow door leaf profiles. The gear assembly can be installed on the left or right side of the handle housing according to specific needs, and can be translated and reversed by removing the installation screws above, and can also be installed in the middle. The axis position of the gear is connected to the transmission box and the transmission box is connected to the transmission rod to form a transmission chain. The rotation of the gear drives the transmission rod to move up and down to realize the opening or closing of the door lock.

[0020] A door and window includes a door and window sash, and the above-mentioned door and window lock is installed on the door and window sash.

[0021] The utility model has the following technical advantages compared with the prior art:

[0022] The automatic locking bolt, the door and window lock and the door and window. The automatic locking bolt is installed in the door and window profile groove. The fixed base set at the bottom of the bolt tongue is fixed in the groove by screws, and an elastic member is arranged inside to connect so that the bolt tongue can move up and down within a limited range of activities. The opening of the door and window sash is realized by driving the bolt tongue through the handle, and the reset is carried out through the elastic member. When the door and window sash is closed, the bolt automatically locks the door and window; the structure is simple and practical, reducing the complexity of manually operating the door and window lock, easily and simply realizing the locking of the door and window. Moreover, the overall scheme does not have small and complex parts to cooperate, the overall manufacturing and maintenance costs are low, and the service life is long. Description of the Drawings

[0023] Figure 1It is a perspective view of the first embodiment of an automatic locking bolt of the present utility model;

[0024] Figure 2 It is Figure 1 the exploded view of the parts;

[0025] Figure 3 It is Figure 1 another exploded view of the parts;

[0026] Figure 4 It is Figure 1 the sectional view of the automatic locking bolt of the present utility model being inserted into the profile slot;

[0027] Figure 5 It is the exploded view of the parts of the second embodiment of an automatic locking bolt of the present utility model;

[0028] Figure 6 It is the exploded view of the parts of the third embodiment of an automatic locking bolt of the present utility model;

[0029] Figure 7 It is Figure 8 the A - A sectional view;

[0030] Figure 8 It is Figure 1 the front view in the open state;

[0031] Figure 9 It is Figure 8 the top view;

[0032] Figure 10 It is Figure 11 the B - B sectional view;

[0033] Figure 11 It is Figure 1 the front view in the locked state;

[0034] Figure 12 It is Figure 1 the sectional view in the open state during actual use;

[0035] Figure 13 It is Figure 1 the sectional view in the locked state during actual use;

[0036] Figure 14 It is a perspective view of a specific embodiment of a door and window of the present utility model;

[0037] Figure 15 It is Figure 14 the exploded view of the door and window lock in it;

[0038] Figure 16 It is Figure 14 the front perspective view of the flat handle in it;

[0039] Figure 17 Yes Figure 14 Reverse perspective view of the flat handle

[0040] Figure 18 Yes Figure 16 Exploded view of

[0041] In the figure: fixed base 10, limit strip hole 11, upright post 12, snap edge 13, set screw 14, self-tapping screw 15, bolt lock tongue 20, inclined arc surface 21, accommodation cavity 22, limit post 23, mounting hole 24, tool hole 25, extension edge 26, outer connecting post 27, outer connecting hole 28, elastic member 30, transmission rod 40, transmission box 50, flat handle 60, handle housing 61, handle 62, rotation positioning end 62a, free end 62b, gear structure 62c, torsion spring 63, gear assembly 64, gear 64a, inner sunken cavity 65 Detailed implementation method

[0042] The present utility model will be further described in detail below in conjunction with the embodiments in the drawings

[0043] As Figures 1 to 18 shown, there are specifically three embodiments of the automatic locking bolt of the present utility model, as well as embodiments of the door and window lock and the door and window

[0044] As Figures 1 to 4 shown, the automatic locking bolt of the first embodiment includes a fixed base 10, a bolt lock tongue 20 and an elastic member 30. The fixed base 10 is fixed and immovable. One end of the bolt lock tongue 20 is provided with an inclined arc surface 21 for extrusion and locking in place. The bolt lock tongue 20 is provided with an accommodation cavity 22 for accommodating the fixed base 10. An elastic member 30 is arranged in the accommodation cavity 22 and pressed against the end surface of the fixed base 10. The bolt lock tongue 20 moves back and forth relative to the fixed base 10 and is limitedly arranged

[0045] The fixed base arranged at the bottom of the bolt lock tongue of this automatic locking bolt is fixed in the profile groove through screws, and an elastic member is arranged inside to enable the bolt lock tongue to move up and down within a limited range of activities. The bolt lock tongue is driven by a handle to open the door and window sash, and is reset by the elastic member. When the door and window sash is closed, the bolt automatically locks the door and window

[0046] As Figure 2 and Figure 3 shown, the fixed base 10 is provided with a limit strip hole 11, and the bolt lock tongue 20 is provided with a limit post 23. The limit post 23 is located in the limit strip hole 11. The limit post 23 of the bolt lock tongue 20 is arranged in the limit strip hole 11, causing the bolt lock tongue 20 to move back and forth within the range of the limit strip hole 11

[0047] As Figure 2As shown, one end of the fixed base 10 is provided with a column 12, one end of the accommodating cavity 22 is provided with a mounting hole 24, and the column 12 is arranged through the mounting hole 24; the elastic member 30 is a compression spring, and the compression spring is mounted on the column 12. Using a compression spring as the elastic member has low cost and is convenient to use. The column of the fixed base passes through the mounting hole of the bolt lock tongue, and the bolt lock tongue moves more smoothly on the fixed seat. The compression spring is installed and fixed through the column, which is stable and reliable.

[0048] As Figure 3 and Figure 9 shown, both sides of the fixed base 10 are provided with snap edges 13 which are snapped into the external profile slot, and the fixed base 10 is pressed in the profile slot by two set screws 14. The set screws cooperate with the snap edges to fix the fixed base well, and the structure is simple and convenient to operate.

[0049] As Figure 2 shown, a tool hole 25 for passing a tool is provided at a position on the bolt lock tongue 20 corresponding to the set screw 14. The tool hole 25 for installing the set screw 14 is provided on the bolt lock tongue 20, which is convenient for operation.

[0050] As Figure 3 shown, both sides of the bolt lock tongue 20 are provided with extension edges 26 which are snapped into the external profile slot. The extension edges 26 provided on both sides of the bolt lock tongue 20 being snapped into the profile slot is beneficial to the up and down movement of the bolt lock tongue 20.

[0051] As Figure 3 shown, the other end of the bolt lock tongue 20 opposite to the inclined arc surface 21 is provided with an external connection column 27. The bolt lock tongue 20 is provided with the external connection column 27 to connect the transmission rod, and the bolt lock tongue 20 is driven to move through the transmission rod to achieve the open state.

[0052] As Figure 7 , Figure 8 and Figure 12 shown, when the automatic locking bolt is in the open state, the external drive rod pulls up the bolt lock tongue 20, and the limit post 23 of the bolt lock tongue 20 is located at the upper edge of the limit strip hole 11 of the fixed base 10.

[0053] As Figure 10 , Figure 11 and Figure 13 shown, when the automatic locking bolt is in the locked state, the compression spring resets and pushes the limit post 23 of the bolt lock tongue 20 towards the lower edge of the limit strip hole 11 of the fixed base 10.

[0054] As Figure 5 shown, for the automatic locking bolt of the second embodiment, the difference from the first embodiment is that the two set screws 14 of the fixed base 10 are replaced with two self-tapping screws 15. The fixed base is locked in the external profile slot by the self-tapping screws. Installing and fixing the fixed base by the self-tapping screws is convenient and fast.

[0055] As Figure 6 shown, the automatic locking bolt of the third embodiment is different from that of the first embodiment in that the outer connecting column 27 is replaced by a long strip-shaped outer connecting hole 28. The bolt tongue is provided with an outer connecting hole to connect the transmission rod, and the bolt tongue is driven to move by the transmission rod to achieve the open state, and the bolt tongue moves back and forth within the range of the long strip-shaped outer connecting hole.

[0056] As Figure 14 and Figure 15 shown, a door and window lock disclosed by the present utility model is provided with the automatic locking bolts of the first embodiment respectively at the upper and lower parts, and the inclined arc surfaces 21 of the upper automatic locking bolt and the lower automatic locking bolt are symmetrically arranged; it further includes a transmission rod 40, a transmission box 50 and a flat handle 60. The middle of the transmission box 50 is connected to the flat handle 60, and both ends are respectively connected to the upper automatic locking bolt and the lower automatic locking bolt through the transmission rod 40. The movement of the flat handle 60 drives the transmission box 50 and the transmission rod 40 to drive the bolt tongues of the upper automatic locking bolt and the lower automatic locking bolt to retract inward to achieve the opening action of the door and window.

[0057] As Figures 16 to 18 shown, the flat handle 60 includes a handle housing 61, a handle 62, a torsion spring 63 and a gear assembly 64. The front surface of the handle housing 61 is provided with an inner sunken cavity 65; the handle 62 is placed inside the inner sunken cavity 65 and has a rotation positioning end 62a and a free end 62b. The rotation positioning end 62a is rotatably connected to the inner sunken cavity 65, and a plurality of tooth structures 62c are provided at this end; the gear assembly 64 is arranged on the back surface of the handle housing 61 and has a gear 64a, and the gear 64a meshes with the tooth structures 62c; the torsion spring 63 is connected between the handle housing 61 and the handle 62 to force the two to be elastically attached.

[0058] The flat handle accommodates the handle through the inner sunken cavity of the handle housing, so as to hide the handle inside the handle housing, solving the defect that people accidentally bump into the handle; a rotating gear assembly is arranged on the back surface of the handle housing, so that the flat handle can be suitable for the installation and use of extremely narrow door leaf profiles. The gear assembly can be installed on the left or right side of the handle housing according to specific requirements, and can be translated and reversed by removing the installation screws on it, and can also be installed in the middle. The axis position of the gear is connected to the transmission box and the transmission box is connected to the transmission rod to form a transmission chain. The rotation of the gear drives the transmission rod to move up and down to achieve the opening or closing of the door lock.

[0059] As Figure 14As shown in the figure, the present utility model also discloses a door and window, including a door and window sash, on which the door and window lock of the above embodiment is installed. The above automatic locking bolts are respectively arranged above and below the door and window lock, and the inclined arc surfaces of the upper automatic locking bolt and the lower automatic locking bolt are symmetrically arranged. The opening of the door and window is realized by pulling the handle of the flat handle to drive the transmission mechanism to drive the bolt tongue. After opening, the handle is lowered. Under the action of the elastic force of the torsion spring, the handle resets and is hidden in the inner sunken cavity of the handle housing, and the transmission box and the transmission rod reset together; then the bolt tongue resets under the action of the elastic force of the compression spring. At this time, the bolt tongue is in the extended state; when it is necessary to close the door and window, only need to push the door and window so that the inclined arc surface of the bolt tongue is pressed. Continuing to apply force, the inclined arc surface of the bolt tongue receives an inward force and moves inward. The bolt tongue presses the compression spring and moves inward and finally snaps into the frame of the aluminum profile to be locked; during the process of closing the door and window, the flat handle and the transmission mechanism do not have any actions. When the door and window are closed, the automatic locking bolt automatically locks the door and window; the structure is simple and practical, reducing the complexity of manually operating the door and window lock, and easily and simply realizing the locking of the door and window.

[0060] The operation process of opening and closing the above flat handle is as follows:

[0061] 1. Pull the handle.

[0062] 2. Compress the torsion spring.

[0063] 3. The gear structure on the handle drives the gear to rotate.

[0064] 4. The gear drives the external transmission box to achieve transmission.

[0065] 5. The transmission box drives the transmission rod to act, the bolt is pulled down, and the door and window sash opens.

[0066] 6. Release the handle, the compressed torsion spring expands, drives the handle to reset, and returns to the state where the handle sinks into the inner sunken cavity of the handle housing.

[0067] 7. When the handle resets, the transmission box and the bolt also reset.

[0068] 8. When the door and window are closed, without operating the handle, directly push the profile or glass of the door and window, and the door and window are locked under the action of the compression spring of the automatic locking bolt.

[0069] The automatic locking bolt, door and window lock, and door and window. The automatic locking bolt is installed in the door and window profile groove. The fixed base set at the bottom of the bolt lock tongue is fixed in the groove by screws. An elastic member is arranged inside to connect so that the bolt lock tongue can move up and down within a limited range of activities. The opening of the door and window sash is realized by driving the bolt lock tongue through a handle, and the reset is carried out through the elastic member. When the door and window sash is closed, the bolt automatically locks the door and window; the structure is simple and practical, reducing the complexity of manually operating the door and window lock, and easily and simply realizing the locking of the door and window. Moreover, the overall scheme does not have small and complex parts to cooperate, the overall manufacturing and maintenance costs are low, and the service life is long.

[0070] In summary, as described in the specification and illustrated content of the present utility model, an actual sample is made and tested through multiple uses. From the test results, it is proved that the present utility model can achieve the expected purpose, and the practicability is beyond doubt. The above-mentioned embodiments are only used to conveniently illustrate the content of the present utility model and are not a formal limitation thereof; any equivalent embodiments made by those with common general knowledge in the technical field to which the present utility model belongs, without departing from the scope of the technical features and similar features proposed by the present utility model, by making partial changes or modifications to the technical content disclosed by the present utility model, all fall within the protection scope of the present utility model.

Claims

1. A door and window lock, characterized in that: The invention comprises a transmission rod (40), a transmission box (50) and a flat handle (60), wherein the transmission box (50) is connected to the flat handle (60) in the middle and the two ends are connected to an upper automatic locking pin and a lower automatic locking pin respectively through the transmission rod (40); and also comprises automatic locking pins arranged at the top and the bottom, wherein the oblique arc surfaces (21) or oblique surfaces of the upper automatic locking pin and the lower automatic locking pin are symmetrically arranged; The flat handle (60) comprises a handle housing (61), a handle (62), a torsion spring (63) and a gear assembly (64); the handle housing (61) is provided with an inner sinking cavity (65) on the front side; the handle (62) is built into the inner sinking cavity (65) and has a rotation positioning end (62a) and a free end (62b); the rotation positioning end (62a) is rotationally connected to the inner sinking cavity (65) and is provided with a plurality of gear tooth structures (62c); the gear assembly (64) is provided on the back side of the handle housing (61) and has a gear (64a); the gear (64a) is meshed with the gear tooth structure (62c); the torsion spring (63) is connected between the handle housing (61) and the handle (62) to force the two to fit elastically; The automatic locking bolt comprises a fixed base (10), a bolt tongue (20) and an elastic member (30); the fixed base (10) is fixed, one end of the bolt tongue (20) is provided with an inclined arc surface (21) or an inclined surface for squeezing into position and locking, the bolt tongue (20) is provided with a receiving cavity (22) for accommodating the fixed base (10), the elastic member (30) is provided in the receiving cavity (22) and is pressed against the end surface of the fixed base (10), and the bolt tongue (20) moves back and forth relative to the fixed base (10) and is limited.

2. The door and window lock according to claim 1, characterized in that: The fixed base (10) is provided with a limiting strip-shaped hole (11), the latch bolt (20) is provided with a limiting column (23), and the limiting column (23) is located in the limiting strip-shaped hole (11).

3. The door and window lock according to claim 1, characterized in that: A column (12) is provided at one end of the fixed base (10), a mounting hole (24) is provided at one end of the accommodating cavity (22), and the column (12) is arranged through the mounting hole (24); the elastic member (30) is a compression spring, and the compression spring is mounted on the column (12).

4. The door and window lock according to claim 1, characterized in that: The fixing base (10) is provided with snap edges (13) on both sides for snapping into the external profile slots, and the fixing base (10) is pressed into the profile slots by means of set screws (14).

5. The door and window lock according to claim 4, characterized in that: A tool hole (25) for a tool to pass through is provided at a position on the latch bolt (20) corresponding to the set screw (14).

6. The door and window lock according to claim 1, characterized in that: The fixed base (10) is locked in the external profile groove by means of self-tapping screws (15).

7. The door and window lock according to claim 1, characterized in that: The latch bolt (20) is provided with extension edges (26) on both sides for snapping into external profile grooves.

8. The door and window lock according to claim 1, characterized in that: An external connection column (27) is provided at the other end of the latch bolt (20) opposite to the inclined arc surface (21).

9. The door and window lock according to claim 1, characterized in that: The other end of the latch bolt (20) opposite to the inclined arc surface (21) is provided with a long strip-shaped external connection hole (28).

10. A door and window, comprising a door and window leaf, characterized in that: The door and window lock according to any one of claims 1 to 9 is installed on the door and window sash.

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