A lock body for doors and windows

Abstract

The present invention provides a lock body for doors and windows, comprising an outer shell, a base, an operating part, a sliding head and a hook, wherein the hook is arranged on the sliding head, the outer shell is mounted on the base, the base is arranged on a door and window frame or a door and window sash frame, the outer shell is provided with an opening for exposing the operating part and an observation hole, the operating part is fixed together with the sliding head, and is arranged on the base in a slidable manner, the sliding direction of the sliding head is set as a first direction, the direction perpendicular to the first direction and parallel to the window surface of the door and window is set as a second direction, and the direction perpendicular to the first direction and the second direction is set as a third direction, the sliding head has an opening for screwing an adjusting screw, the adjusting screw is used to adjust the extension length of the hook, the opening extends along the third direction and is perpendicular to a display part arranged above and below the opening, the display part is set to different colors, and the display part can be observed through the observation hole. Thus, the adjusting screw hole can also be used as a lock body state observation hole.

Description

Technical Field

[0001] The invention relates to a lock body for doors and windows, and in particular to a lock body capable of adjusting the extension length of a lock hook. Background Art

[0002] Chinese utility model CN2641238Y discloses a window lock, which has a lock body, a sliding column, and a hook. The hook has two rows of multiple recesses, and the sliding column is provided with holes. The adjustment screw passes through the holes and cooperates with the multiple recesses to achieve the adjustment effect. In addition, the holes are arranged obliquely, so that they are not visually obvious.

[0003] In addition, the same technical features are also disclosed in Chinese utility model CN2769737Y.

[0004] Because the openings in the above-mentioned prior art are all arranged at an angle, the adjustment screws can only be screwed in at an angle, which makes installation difficult. In addition, the inclined screws can only make point contact with the recess of the hook, while normally they should be in perpendicular contact with each other, with the circumference of the screw directly contacting the recess, so that adjustment is convenient. Furthermore, even if the holes are arranged at an angle, the openings can still be seen, but the openings are usually not used, so the improvement in visual effects is not significant. Summary of the invention

[0005] The present invention is made in view of the above-mentioned problems, and its object is to provide a lock body in which an adjustment screw hole is also used as a lock body state observation hole.

[0006] The lock body of the present invention is characterized in that it comprises an outer shell, a base, an operating part, a sliding head and a hook part, the hook part is arranged on the sliding head, the outer shell is mounted on the base, the base is arranged on a door or window frame or a door or window sash frame, the outer shell is provided with an opening part and an observation hole for exposing the operating part, the operating part is fixed together with the sliding head, and is slidably arranged on the base, the sliding direction of the sliding head is set as a first direction, the direction perpendicular to the first direction and parallel to the window surface of the door or window is set as a second direction, and the direction perpendicular to the first direction and the second direction is set as a third direction, the sliding head has an opening for screwing an adjusting screw into, the adjusting screw is used to adjust the extension length of the hook part, the opening extends along the third direction and is perpendicular to a display part arranged above and below the opening, the display part is set to different colors, and the display part can be observed through the observation hole.

[0007] According to the lock body of the present invention, the adjusting screw hole is also used as the lock body state observation hole, so that the adjusting screw hole can be arranged approximately vertically relative to the hook portion, so that the hook portion can be fixed more firmly, achieving an excellent locking effect.

[0008] In addition, in the lock body of the present invention, preferably, different colors can be observed from the observation hole when the lock body is in a locked or unlocked state, thereby enabling the user to conveniently confirm whether the lock body is in a locked or unlocked state.

[0009] In addition, in the lock body of the present invention, preferably, the base is fixed to the door and window frame or the door and window sash frame via an extended edge, and the extended edge is inclined inwardly by less than 3° relative to a plane perpendicular to the second direction. Thus, when the extended edge is fixed to the door and window frame or the door and window sash frame by screws, due to the small angle of inclination, both sides of the outer shell along the first direction can be closely attached to the profile, that is, the entire outer shell is closely attached to the profile in the third direction, so that the lock body is further attached to the door and window frame or the door and window sash frame.

[0010] In addition, in the lock body of the present invention, preferably, the base is a sheet metal part, thereby making it possible to simply form the base and ensure its strength.

[0011] In addition, in the lock body of the present invention, preferably, one end of the operating part is fixed to the sliding head, and the other end has a pair of legs protruding along the first direction, the ends of the legs protrude outward, and the inner side of the shell part is provided with a pair of protrusions close to each other, which cooperate with the legs. Thus, the interaction between the legs and the protrusions can be used to generate an operating force when operating the operating part, and the operating part and the lock body are positioned in the locked and unlocked states.

[0012] In addition, in the lock body of the present invention, preferably, the sliding head is provided with a sliding head side step portion, the end of the operating portion is provided with an operating portion side step portion, the sliding head side step portion and the operating portion side step portion are engaged with each other, and the operating portion side step portion is provided with a plurality of protrusions. Thus, the operating portion and the sliding head can be tightly combined, so that when the operating portion is operated, the sliding head can be driven to move together.

[0013] In addition, in the lock body of the present invention, preferably, the adjusting screw is screwed in along a direction inclined by 5°±2° relative to the third direction. Thus, it is possible to ensure that the front end of the adjusting screw is in full contact with the hook portion, thereby achieving a firm fixation of the hook portion. In addition, the head of the adjusting screw is conical, and a resistance force can be generated when screwing in by adding a little inclination angle, so that the binding force between the adjusting screw and the multiple recesses of the hook portion is more reliable.

[0014] In addition, in the lock body of the present invention, preferably, recesses are arranged at different positions on both sides of the hook, and the front end of the adjusting screw engages with the recesses, thereby ensuring that the front end of the adjusting screw is in full contact with the recess of the hook, thereby achieving a firm fixation of the hook.

[0015] In addition, in the lock body of the present invention, preferably, when the lock body is in an unlocked state, the sliding head abuts against the base, and the end of the leg of the operating part crosses over the highest point of the protrusion of the shell part. Thus, the operating part and the lock body can be positioned in the unlocked state, and the operating force during the locking process can be provided.

[0016] In addition, in the lock body of the present invention, preferably, the base and the outer shell are fixed by a pin, and when the lock body is locked, the sliding head abuts against the pin, thereby positioning the operating part and the lock body in the locked state and providing operating force during unlocking.

[0017] Effects of the Invention

[0018] According to the lock body of the present invention, the following technical effects can be obtained: when the operating part slides on the base, the sliding block is driven, and the hook part is also driven. The hook part can be engaged or not engaged with the engaged part, so as to achieve the function of the lock body, and the display part of the sliding head can be observed from the observation hole, so that the operator can know whether the lock body is in an open or closed state. When the display part only shows the opening of the sliding head, the screw can be adjusted by using a tool.

[0019] In this way, the observation hole and the adjustment hole are one hole, which reduces the number of holes. The observation hole also serves as the adjustment hole, and is not a "dedicated adjustment hole" in the prior art. From the appearance, it is not unacceptable. When the adjustment function is not used, the state of the lock body is displayed, thereby improving the visual effect.

[0020] In addition, the opening is substantially perpendicular to the hook portion, and the adjusting screw can be screwed in substantially perpendicularly, which is convenient for installation. At the same time, the peripheral surface of the screw directly contacts the recessed portion, thereby facilitating adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a perspective view showing the front structure of the lock body of the present invention.

[0022] Figure 2 It is a perspective view showing the back structure of the lock body of the present invention.

[0023] Figure 3 It is an exploded perspective view showing the lock body of the present invention.

[0024] Figure 4 It is a perspective view showing the back structure of the lock body of the present invention with the base portion removed.

[0025] Figure 5 (a) to (c) are schematic diagrams showing the process of the lock body of the present invention changing from a locked state to an unlocked state.

[0026] Figure 62 is a schematic cross-sectional view showing the upper portion of the lock body of the present invention in a locked state.

[0027] Figure 7 2 is a schematic cross-sectional view showing the lower portion of the lock body of the present invention in a locked state.

[0028] Figure 8 2 is a schematic cross-sectional view showing the upper portion of the lock body of the present invention in an unlocked state.

[0029] Fig. 9 2 is a schematic cross-sectional view showing the upper portion of the lock body of the present invention in an unlocked state.

[0030] Fig.10 It is a cross-sectional view showing the lock body of the present invention when it is installed on a profile.

[0031] Fig.11 It is a schematic diagram showing the positioning of the hook portion of the lock body and the adjusting screw of the present invention.

[0032] Fig.12 It is a schematic diagram showing an example of the structure of a lock seat corresponding to the lock body of the present invention.

[0033] Fig.13 yes Fig.12 An exploded perspective view of the lock seat shown. DETAILED DESCRIPTION

[0034] The present invention will be described in more detail below with reference to the accompanying drawings and embodiments.

[0035] The preferred embodiment of the lock body according to the present invention will be described in detail below with reference to the accompanying drawings. In the description of the accompanying drawings, the same or corresponding parts are given the same reference numerals, and repeated descriptions are omitted.

[0036] Figure 1 It is a perspective view showing the front structure of the lock body of the present invention. Figure 2 It is a perspective view showing the back structure of the lock body of the present invention. Figure 3 It is an exploded perspective view showing the lock body of the present invention. Figure 4 It is a three-dimensional view showing the back structure of the lock body of the present invention after removing the base (including the hook and the pin).

[0037] like Figure 1 to Figure 4As shown, the lock body for doors and windows involved in the present invention comprises an outer shell 10, a base 20, an operating part 30, a sliding head 40 and a hook 50, wherein the hook 50 is arranged on the sliding head 40, the outer shell 10 is installed on the base 20 (for example, the outer shell 10 and the base 20 are fixed to each other by pins 23 and 24), the base 20 is arranged on a door and window frame or a door and window sash frame, the outer shell 10 is provided with an opening 11 and an observation hole 12 for exposing the operating part 30, the operating part 30 is fixed together with the sliding head 40, and is slidably arranged on the base 20.

[0038] The sliding direction of the sliding head 40 is set as the first direction (Z direction), the direction perpendicular to the first direction and parallel to the window surface of the door and window is set as the second direction (X direction), and the direction perpendicular to the first direction and the second direction is set as the third direction (Y direction).

[0039] The sliding head 40 has an opening 41 for screwing an adjusting screw 44 into, and the adjusting screw 44 is used to adjust the extension length of the hook 50. The opening 41 extends along a third direction and is perpendicular to display parts 42, 43 arranged above and below the opening 41. The display parts 42, 43 are set to different colors, and the display parts 42, 43 can be observed through the observation hole 12.

[0040] The base 20 is, for example, a sheet metal member, so that the base 20 can be formed simply and its strength can be ensured.

[0041] One end of the operating part 30 is fixed to the sliding head 40, and the other end has a pair of legs 31, 32 protruding in the first direction, the ends of the legs 31, 32 protrude outward, and the inner side of the shell is provided with a pair of protrusions 13, 14 close to each other, which cooperate with the legs 31, 32. Thus, the interaction between the legs 31, 32 and the protrusions 13, 14 can be used to generate an operating force when operating the operating part 30, and the operating part 30 and the lock body are positioned in the locked and unlocked states.

[0042] Figure 5 (a) to (c) are schematic diagrams showing the process of the lock body of the present invention changing from a locked state to an unlocked state.

[0043] like Figure 5 In the locked state shown in (a), the sliding head 40 is located at the uppermost side of the sliding position, and the hook 50 is engaged with the target groove. At this time, the lower display part 43 (for example, displayed in red) can be observed through the observation hole 12. Therefore, the user can know that the lock body is in the locked state by observing the observation hole 12. Figure 5As shown in (b), when the operating part 30 slides downward, the observation hole 12 is aligned with the opening 41 of the sliding head 40. At this time, the adjusting screw 44 can be adjusted through the observation hole 12 to adjust the extension position of the hook 50. Usually, the extension position of the hook 50 is adjusted when the lock body is installed, and generally no adjustment is made afterwards. Therefore, Figure 5 The state (b) is an intermediate state between locking and unlocking, and there is no need to set a positioning mechanism to specifically position this state. Figure 5 As shown in (c), the operating part 30 continues to slide downward so that the hook part 50 is not engaged with the object slot. At this time, the observation hole 12 is aligned with the upper display part 42 of the sliding head 40 (for example, displayed in green). Therefore, the user can know that the lock body is in the unlocked state by observing the observation hole 12. According to the above, different colors can be observed from the observation hole 12 when the lock body is in the locked and unlocked states. Therefore, the user can easily confirm that the lock body is in the locked or unlocked state. Here, according to the specific setting position of the object slot, the above-mentioned locked and unlocked states can also be set upside down.

[0044] Figure 6 2 is a schematic cross-sectional view showing the upper portion of the lock body of the present invention in a locked state. Figure 7 2 is a schematic cross-sectional view showing the lower portion of the lock body of the present invention in a locked state.

[0045] like Figure 6 As shown, the sliding head 40 is provided with a sliding head side step portion 45, and the end of the operating part 30 is provided with an operating part side step portion 33, the sliding head side step portion 45 and the operating part side step portion 33 are engaged with each other, and a plurality of protrusions are provided on the side step portion of the operating part 30. Thus, the operating part 30 can be tightly combined with the sliding head 40, so that when the operating part 30 is operated, the sliding head 40 can be driven to move together. Here, the matching structure of the sliding head 40 and the operating part 30 is not limited to the above-mentioned method, and can be any structure as long as the sliding head 40 and the operating part 30 can slide together in the first direction.

[0046] In addition, the adjusting screw 44 is screwed in along a direction inclined by 5°±2° relative to the third direction. Thus, it is possible to ensure that the front end of the adjusting screw 44 is in full contact with the hook 50, thereby achieving a firm fixation of the hook 50. Furthermore, the head of the adjusting screw is conical, and a slight inclination angle can be added to generate resistance during screwing, so that the binding force between the adjusting screw and the multiple recesses of the hook 50 is more reliable.

[0047] When the lock body is locked, the sliding head 40 abuts against the pin 23. Thus, the operating part 30 and the lock body can be positioned in the locked state. Figure 7As shown, in the locked state, the ends 311, 321 of the legs 31, 32 of the operating part 30 do not cross the highest points of the protrusions 13, 14 of the housing 10. Thus, the housing 10 provides an upward force to the operating part 30, and the pin 23 provides a downward force to the operating part 30 via the sliding head 40, thereby positioning the operating part 30.

[0048] Figure 8 2 is a schematic cross-sectional view showing the upper portion of the lock body of the present invention in an unlocked state. Fig. 9 2 is a schematic cross-sectional view showing the upper portion of the lock body of the present invention in an unlocked state.

[0049] like Figure 8 , 9 As shown, in the unlocked state, the sliding head 40 abuts against the base 20, and the ends 311, 321 of the legs 31, 32 of the operating part 30 cross the highest point of the protrusion of the housing 10. Thus, the housing 10 provides a downward force to the operating part 30, and the base 20 provides an upward force to the operating part 30 via the sliding head 40, so that the operating part 30 is positioned.

[0050] Fig.10 2 is a cross-sectional view showing the installation of the lock body of the present invention on the profile. Fig.10 As shown, the base 20 is fixed to the door and window frame or the door and window sash frame by the extended edge 21 (for example, fixed by screws), and the extended edge 21 is inclined inwardly by less than 3° relative to the plane perpendicular to the second direction. Therefore, when the extended edge 21 is fixed to the door and window frame or the door and window sash frame by screws, due to the small angle of inclination, the two side edges of the outer shell 10 along the first direction can be closely attached to the profile, that is, the outer shell 10 as a whole is closely attached to the profile in the third direction, so that the lock body is further attached to the door and window frame or the door and window sash frame.

[0051] Fig.11 Schematic diagram showing the positioning of the hook portion and the adjusting screw of the lock body of the present invention. In the lock body of the present invention, preferably, a plurality of recesses are arranged on both sides of the hook portion 50 at mutually staggered positions, and the front end of the adjusting screw 44 engages with the recess. Thus, it is possible to ensure that the front end of the adjusting screw 44 is in full contact with the recess of the hook portion 50, and the hook portion 50 is firmly fixed.

[0052] Fig.12 It is a schematic diagram showing an example of the structure of a lock seat corresponding to the lock body of the present invention. Fig.13 yes Fig.12 The exploded perspective view of the lock seat is shown in FIG. Fig.12 , 13As shown, an opening 61 is formed on the profile 60. The lock seat 70 is composed of a first sheet 71 and a second sheet 72. The first sheet 71 and the second sheet 72 are fixed to the profile 60 by screws in a manner of clamping the profile 60. In the unlocked state, the hook 50 of the lock body of the present invention can pass through the opening 61. In the locked state, a part of the hook 50 is located outside the opening 61, so that the hook 60 is engaged with the opening 61. Therefore, the lock body of the present invention and the lock seat 70 can easily perform locking and unlocking actions.

[0053] Although the present invention has been specifically described above in conjunction with the accompanying drawings and embodiments, it is to be understood that the above description does not limit the present invention in any form. Those skilled in the art can deform and change the present invention as needed without departing from the essential spirit and scope of the present invention, and these deformations and changes all fall within the scope of the present invention.

Claims

1. A lock body for doors and windows, characterized in that: It has an outer shell, a base, an operating part, a sliding head and a hook part. The hook is arranged on the sliding head, the outer shell is mounted on the base, and the base is arranged on the door and window frame or the door and window sash frame. The outer shell is provided with an opening portion and an observation hole for exposing the operating portion. The operating part is fixed to the sliding head and is slidably arranged on the base. The sliding direction of the sliding head is set as a first direction, a direction perpendicular to the first direction and parallel to the window surface of the door and window is set as a second direction, and a direction perpendicular to the first direction and the second direction is set as a third direction. The sliding head has an opening for screwing an adjusting screw therein, and the adjusting screw is used to adjust the extension length of the hook. The opening extends along the third direction and is perpendicular to the display parts arranged above and below the opening, the display parts are arranged in different colors, and the display parts can be observed through the observation hole. When the lock body is in a locked or unlocked state, different colors can be observed from the observation hole.

2. The lock body according to claim 1, characterized in that: The base is fixed to the door and window frame or the door and window sash frame through the extended edge. The extended edge portion is inclined inwardly by less than 3° relative to a plane perpendicular to the second direction.

3. The lock body according to claim 2, characterized in that: The base is a sheet metal part.

4. The lock body according to claim 1, characterized in that: One end of the operating portion is fixed to the sliding head, and the other end has a pair of legs protruding along the first direction, and the ends of the legs protrude outward. A pair of protrusions close to each other are arranged on the inner side of the outer shell and matched with the legs.

5. The lock body according to claim 1, characterized in that: The slider is provided with a slider side step portion, the end of the operating portion is provided with an operating portion side step portion, the slider side step portion and the operating portion side step portion are engaged with each other, and a plurality of protrusions are provided on the operating portion side step portion.

6. The lock body according to claim 1, characterized in that: The adjusting screw is screwed in a direction inclined at 5°±2° relative to the third direction.

7. The lock body according to claim 1, characterized in that: The hook portion has recesses arranged on both sides thereof at positions staggered with each other. The front end of the adjusting screw is engaged with the recessed portion.

8. The lock body according to claim 4, characterized in that: When the lock body is in an unlocked state, the slider abuts against the base, and the end of the leg of the operating portion straddles the highest point of the protrusion of the outer shell.

9. The lock body according to claim 1, characterized in that: The base and the outer shell are fixed by pins, When the lock body is in a locked state, the sliding head abuts against the pin.

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