Push-pull lock and door and window

Abstract

The utility model relates to the technical field of hardware, in particular to a push-pull lock and a door and window, which are provided with a shell, a transmission part, a limiting component and a handle, a sliding part is arranged on the transmission piece, a transmission shaft is arranged on the handle, and the transmission shaft is matched with the sliding part to achieve linkage of the transmission piece and the handle. And the door and window can be unlocked or locked through the mutual cooperation of the three parts. When the door and window need to be unlocked, the limiting assembly is pressed, the transmission shaft slides in the sliding part, the lock body is in the first state, one end of the handle pops out of the shell, at the moment, the lock body is in the unlocked state, and a user can open and close the door and window through the handle. When the door and window is locked, the handle is pressed, the transmission piece moves in the reverse direction, the lock body is in the second state, the handle is retracted into the shell, the limiting assembly returns, and the lock body enters the locking state. The push-pull lock is easy to operate, meanwhile, the pull handle can be completely recycled, and the appearance is kept concise.

Description

Technical Field

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

[0002] With the development of the door and window hardware industry, casement doors and windows are favored by the market. Among them, push-pull locks are widely used in casement doors and windows as a new type of lock body. In order to facilitate users to turn the lock tongue, push-pull locks are usually equipped with handles, which can be locked or unlocked by rotating or moving the handle up and down. However, this structure has the problems of complex structure and high production cost, and the handle increases the occupied area of ​​the push-pull lock. Utility Model Content

[0003] Based on this, the purpose of the utility model is to provide a push-pull lock and a door and window.

[0004] The utility model adopts the following technical solutions:

[0005] A push-pull lock, comprising a housing, a transmission member, a limit assembly and a handle rotatably connected to the housing; the housing is provided with a mounting groove extending along its length direction, the transmission member is slidably connected in the mounting groove, and the limit assembly is arranged in the mounting groove; a connecting member is provided on the bottom surface of the handle, and the connecting member is provided with a transmission shaft extending along its width direction; a sliding part is provided on the side wall of the transmission member, the sliding part is arranged obliquely downward toward the limit assembly, and the end of the transmission shaft is slidably connected in the sliding part;

[0006] In the first state, the transmission member moves toward the side close to the limit assembly, and the transmission member drives the handle to rotate toward the side away from the transmission member;

[0007] In the second state, the handle rotates toward the side close to the transmission member, and pushes the transmission rod to move toward the end away from the limiting assembly.

[0008] Preferably, the transmission member is provided with a plug-in end at one end close to the limit assembly; the limit assembly comprises a limit switch, the limit switch is provided with a plug-in slot and a step slot, the plug-in slot is connected to the step slot, the plug-in slot is provided at the upper end of the step slot, and the depth of the plug-in slot is greater than the depth of the step slot;

[0009] In the first state, the plug-in end extends into the plug-in slot; in the second state, the plug-in end extends into the stepped slot.

[0010] Preferably, the limit assembly further comprises a first connecting column arranged at the lower end of the limit switch, and a first elastic member sleeved on the outer side of the first connecting column; the first elastic member respectively connects the limit switch and the housing; the housing is provided with a first through hole corresponding to the first connecting column;

[0011] In the first state, the first elastic member is compressed, the first connecting column extends into the first through hole, and the plug-in end and the plug-in slot are located at the same height;

[0012] In the second state, the first elastic member is reset, the first connecting column is separated from the first through hole, and the plug-in end and the stepped groove are located at the same height.

[0013] Preferably, it further comprises a safety lock rotatably connected to the housing, the safety lock being arranged on a side of the limit switch away from the transmission member, and a blocking portion being fixedly arranged on an outer wall of the safety lock;

[0014] When the safety lock rotates around its own axis to a preset angle, the blocking portion abuts against the bottom surface of the limit switch to limit the movement of the limit switch.

[0015] Preferably, the sliding portion comprises a sliding hole provided on a side wall of the transmission member, and the end portion of the transmission shaft is slidably connected in the sliding hole.

[0016] Preferably, a limiting platform extending horizontally toward one side of the limiting assembly is provided at the bottom of the sliding hole; in the first state, the end of the transmission shaft moves into the limiting platform.

[0017] Preferably, a pressing block is fixedly provided on the inner side of the housing, the pressing block is provided with a second connecting column extending along the length direction of the mounting groove, a second elastic member is sleeved on the outer side of the second connecting column, and two ends of the second elastic member are respectively connected to the pressing block and the transmission member;

[0018] In the first state, the second elastic member drives the transmission member to move toward one side of the limiting assembly; in the second state, the transmission member moves toward a side away from the limiting assembly to stretch the second elastic member.

[0019] Preferably, the transmission member is provided with a movable groove extending along its length direction, and the pressing block is arranged in the movable groove.

[0020] Preferably, a rotating shaft is provided at the rotating end of the handle, and the handle is rotatably connected to the shell via the rotating shaft; a third elastic member is provided on the outer side of the rotating shaft, and the third elastic member is respectively connected to the handle and the shell.

[0021] A door and window comprises a door and window body and the above-mentioned push-pull lock, wherein the push-pull lock is installed on the door and window body.

[0022] The beneficial effects of the utility model are:

[0023] The push-pull lock and door and window involved in the utility model are provided with a shell, a transmission member, a limit assembly and a handle; a sliding part is provided on the transmission member, and a transmission shaft is provided on the handle, and the transmission shaft cooperates with the sliding part to realize the linkage between the transmission member and the handle; through the mutual cooperation of the three, the door and window can realize the function of unlocking or locking. When it is necessary to unlock the door and window, the limit assembly is pressed, and the transmission shaft slides in the sliding part, so that the lock body is in the first state, and one end of the handle pops out of the shell. At this time, the lock body is in the unlocked state, and the user can open and close the door and window by the handle. When locking the door and window, the handle is pressed, and the transmission member moves in the reverse direction, so that the lock body is in the second state, the handle is retracted into the shell, the limit assembly returns to its position, and the lock body enters the locked state. The push-pull lock is easy to operate, and the handle can be completely retracted, keeping the appearance simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the push-pull lock of the utility model;

[0025] Figure 2 for Figure 1 The first structural explosion diagram of the push-pull lock;

[0026] Figure 3 for Figure 1 The second structure explosion diagram of the push-pull lock;

[0027] Figure 4 for Figure 1 A schematic diagram of a push-pull lock in a first state;

[0028] Figure 5 for Figure 1 Schematic diagram of the push-pull lock in the second state.

[0029] Numbers in the figure:

[0030] 100-housing; 11-mounting slot;

[0031] 200-transmission member; 21-sliding part; 211-sliding hole; 212-limiting platform; 22-locking point; 23-plug-in end; 24-movable slot;

[0032] 300-limiting assembly; 31-limiting switch; 311-plug slot; 312-step slot; 32-first connecting column; 33-first elastic member;

[0033] 400-handle; 41-connecting member; 42-transmission shaft; 43-rotating shaft; 44-third elastic member;

[0034] 500-safety lock; 51-blocking part; 52-hole position;

[0035] 600 - pressing block; 61 - second connecting column; 62 - second elastic member. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] In the description of the present invention, it should be noted that the terms "vertical direction", "upper", "lower", "horizontal" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] like Figures 1 to 3 The figure shows a push-pull lock according to an embodiment of the present invention. Figure 4 Shown is a schematic diagram of the push-pull lock in the first state; Figure 5 Shown is a schematic diagram of the push-pull lock in the second state.

[0040] A push-pull lock comprises a shell, a transmission member, a limit assembly and a handle rotatably connected to the shell; the shell is provided with a mounting groove extending along its length direction, the transmission member is arranged in the mounting groove, and the transmission member can move along the mounting groove; the limit assembly is arranged in the mounting groove, and moves vertically up and down in the mounting groove; the bottom surface of the handle is provided with a connecting member, and the connecting member is provided with a transmission shaft extending along its width direction; the side wall of the transmission member is provided with a sliding part, the sliding part is arranged obliquely downward toward the limit assembly, and the end of the transmission shaft is slidably connected in the sliding part.

[0041] In actual application, in this embodiment, a U-shaped locking point is provided at the lower end of the transmission member, which is connected to the door and window lock tongue. The transmission member slides in the installation groove, and the locking point slides synchronously and moves the door and window lock tongue to realize the locking or unlocking function of the door and window.

[0042] See also Figure 4 , at this time, the push-pull lock is in the first state. When the door and window need to be opened and closed, the limit assembly is pressed to drive the limit assembly to move downward in direction A, and the transmission member moves toward the side close to the limit assembly (i.e., direction B in the figure). The movement of the transmission member causes the lock point to move the lock tongue to unlock; during the movement of the transmission member, the transmission shaft moves downward along the sliding part, and drives the handle to rotate toward the side away from the transmission member (i.e., direction C in the figure) and pop out of the shell. At this time, the door and window lock body is in the unlocked state, and the operator can hold the handle to open and close the door and window.

[0043] See also Figure 5 , at this time, the push-pull lock is in the second state. When the doors and windows need to be locked, press the handle to make the handle rotate toward the side close to the transmission member (direction D in the figure). During the rotation of the handle, the transmission shaft moves upward along the sliding part and pushes the transmission member to move toward the side away from the limit assembly (i.e., direction E in the figure). The movement of the transmission member causes the lock point to move the lock tongue to achieve locking. At this time, the doors and windows are in a locked state, and the handle is retracted into the shell to reduce the occupied space.

[0044] The structure of the push-pull lock is described in detail below.

[0045] like Figure 2 and Figure 3 As shown, a plug-in end is provided at one end of the transmission member close to the limit assembly, and the limit assembly includes a limit switch. The limit switch is provided with a plug-in groove and a step groove. The plug-in groove is connected to the step groove, and the plug-in groove is provided at the upper end of the step groove. The depth of the plug-in groove is greater than the depth of the step groove.

[0046] In the first state, the limit switch is pressed to move downward; as the limit switch moves downward, the plug slot is aligned with the plug end, and the plug end is separated from the step slot and extends into the plug slot, providing movement space for the transmission member to move along direction B. In the second state, the limit switch is moved upward; as the limit switch moves upward, the step slot is aligned with the plug end; in this process, as the handle is retracted, the transmission member moves along direction B, causing the plug end to separate from the plug slot and extend into the step slot.

[0047] Specifically, the limit assembly further includes a first connecting column arranged at the lower end of the limit switch, and a first elastic member sleeved on the outer side of the first connecting column; the first elastic member connects the limit switch and the housing respectively; and the housing is provided with a first through hole arranged corresponding to the first connecting column. In the first state, the limit switch is pressed, so that the first elastic member is compressed, and the first connecting column extends into the first through hole, so that the plug-in end and the plug-in slot are at the same height. In the second state, the first elastic member is reset, so that the first connecting column is separated from the first through hole, so that the plug-in end and the stepped groove are at the same height. In this embodiment, the first elastic member is a spring.

[0048] Furthermore, if Figure 3 As shown, it also includes a safety lock rotatably connected to the housing, the safety lock is arranged on the side of the limit switch away from the transmission member, and a blocking portion is fixedly arranged on the outer wall of the safety lock. In actual application, a hole connected to the safety lock is arranged on the side of the housing facing the room, and the user can use a tool such as a wrench through the hole to rotate the safety lock; when the safety lock rotates around its own axis to a preset angle, the blocking portion abuts against the bottom surface of the limit switch, so that the limit switch cannot move downward, resulting in the transmission member and the handle being unable to move, and the push-pull lock is always locked to ensure safety in use.

[0049] like Figure 3 As shown, in this embodiment, the sliding portion includes a sliding hole that penetrates the side wall of the transmission member, the transmission shaft and the sliding hole are clearance-matched, and the end of the transmission shaft is slidably connected in the sliding hole. In addition, the sliding portion can also adopt an inclined groove that does not penetrate the side wall of the transmission member, and the end of the transmission shaft is slidably connected in the inclined groove.

[0050] Specifically, a horizontally arranged limiting platform extending toward one side of the limiting assembly is provided at the bottom of the sliding hole. In the first state, the end of the transmission shaft moves into the limiting platform, providing rotation resistance for the handle and optimizing the user experience.

[0051] like Figure 3As shown, a pressure block is fixedly arranged on the inner side of the housing, and the pressure block is provided with a second connecting column extending along the length direction of the installation groove, and a second elastic member is sleeved on the outer side of the second connecting column, and the two ends of the second elastic member are respectively connected to the pressure block and the transmission member; in this embodiment, the second elastic member is a spring. In the first state, after pressing the limit switch, the plug-in end is separated from the step groove and has a lateral movement space, and the second elastic member is reset to make the transmission member move toward one side of the limit assembly. In the second state, pressing the handle makes the transmission member move toward the side away from the limit assembly, and the second elastic member is stretched in the process.

[0052] Specifically, a movable groove extending along the length direction of the transmission member is provided, and the pressing block is arranged in the movable groove. The length of the movable groove is greater than the length of the pressing block, and the pressing block can move in the movable groove.

[0053] like Figure 3 As shown, a rotating shaft is provided at the rotating end of the handle, and the handle is rotatably connected to the shell through the rotating shaft; a third elastic member is provided on the outer side of the rotating shaft. In this embodiment, the third elastic member adopts a torsion spring, and a first elastic arm and a second elastic arm are extended from both ends, the first elastic arm is connected to the handle, and the second elastic arm is connected to the shell.

[0054] The utility model also provides a door and window, comprising a door and window body and a push-pull lock embedded in the door and window body, wherein the push-pull lock is connected to a lock seat of the door and window body. In a first state, a handle of the push-pull lock pops out and unlocks the lock seat of the door and window body, and a user can hold the handle to open and close the door and window body. In a second state, the handle of the push-pull lock is retracted to keep the appearance of the door and window body neat and tidy.

[0055] The working principle of the push-pull lock and the door and window involved in the utility model is as follows:

[0056] like Figure 4 When the user needs to open or close the doors and windows, the limit switch is pressed to move in direction A, the plug-in end is aligned with the plug-in slot, and the slot cavity of the plug-in slot provides a movement gap for the transmission part in direction B; under the elastic force of the second elastic part, the transmission part moves in direction B, and the lock tongue is pushed during the movement to unlock; at the same time, the handle is driven to pop out in direction C.

[0057] like Figure 5 As shown, when the user needs to lock the doors and windows, he presses the handle, the handle moves in direction D, the transmission member moves left in direction E to lock the doors and windows, and at the same time the plug-in end disengages from the plug-in slot, the first elastic member drives the limit switch to move upward in direction F, and finally the plug-in end extends into the step slot.

[0058] Compared with the prior art, the push-pull lock and door and window involved in the utility model are provided with a shell, a transmission member, a limit assembly and a handle; a sliding part is provided on the transmission member, and a transmission shaft is provided on the handle, and the transmission shaft cooperates with the sliding part to realize the linkage between the transmission member and the handle; through the mutual cooperation of the three, the door and window can realize the function of unlocking or locking. When it is necessary to unlock the door and window, press the limit assembly, the transmission shaft slides in the sliding part, so that the lock body is in the first state, and one end of the handle pops out of the shell. At this time, the lock body is in the unlocked state, and the user can open and close the door and window by the handle. When locking the door and window, press the handle, the transmission member moves in the reverse direction, so that the lock body is in the second state, the handle is retracted into the shell, the limit assembly returns to its position, and the lock body enters the locked state. The push-pull lock is easy to operate, and the handle can be completely retracted to keep the appearance simple.

[0059] The above only expresses the preferred technical solution of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and the utility model is also intended to include these modifications and modifications.

Claims

1. A push-pull lock, characterized in that: The invention comprises a housing, a transmission member, a limit assembly and a handle rotatably connected to the housing; the housing is provided with a mounting groove extending along its length direction, the transmission member is slidably connected in the mounting groove, and the limit assembly is arranged in the mounting groove; a connecting member is provided on the bottom surface of the handle, and the connecting member is provided with a transmission shaft extending along its width direction; a sliding part is provided on the side wall of the transmission member, the sliding part is inclined downwardly arranged toward the limit assembly, and the end of the transmission shaft is slidably connected in the sliding part; In the first state, the transmission member moves toward the side close to the limiting assembly, and the transmission member drives the handle to rotate toward the side away from the transmission member; In the second state, the handle rotates toward a side close to the transmission member, and pushes the transmission member to move toward an end away from the limiting assembly.

2. The push-pull lock according to claim 1, characterized in that: The transmission member is provided with a plug-in end at one end close to the limit assembly; the limit assembly includes a limit switch, the limit switch is provided with a plug-in slot and a step slot, the plug-in slot is connected to the step slot, the plug-in slot is provided at the upper end of the step slot, and the depth of the plug-in slot is greater than the depth of the step slot; In the first state, the plug-in end extends into the plug-in slot; in the second state, the plug-in end extends into the stepped slot.

3. The push-pull lock according to claim 2, characterized in that: The limit assembly further includes a first connecting column arranged at the lower end of the limit switch, and a first elastic member sleeved on the outer side of the first connecting column; the first elastic member connects the limit switch and the housing respectively; the housing is provided with a first through hole corresponding to the first connecting column; In the first state, the first elastic member is compressed, the first connecting column extends into the first through hole, and the plug-in end and the plug-in slot are located at the same height; In the second state, the first elastic member is reset, the first connecting column is separated from the first through hole, and the plug-in end and the stepped groove are located at the same height.

4. The push-pull lock according to claim 3, characterized in that: It also includes a safety lock rotatably connected to the housing, the safety lock is arranged on a side of the limit switch away from the transmission member, and a blocking portion is fixedly arranged on an outer wall of the safety lock; When the safety lock rotates around its own axis to a preset angle, the blocking portion abuts against the bottom surface of the limit switch to limit the movement of the limit switch.

5. The push-pull lock according to claim 1, characterized in that: The sliding portion comprises a sliding hole arranged on the side wall of the transmission member, and the end of the transmission shaft is slidably connected in the sliding hole.

6. The push-pull lock according to claim 5, characterized in that: A limiting platform is provided at the bottom of the sliding hole and extends horizontally toward one side of the limiting assembly; in the first state, the end of the transmission shaft moves into the limiting platform.

7. The push-pull lock according to claim 1, characterized in that: A pressing block is fixedly provided on the inner side of the housing, and the pressing block is provided with a second connecting column extending along the length direction of the mounting groove, and a second elastic member is sleeved on the outer side of the second connecting column, and two ends of the second elastic member are respectively connected to the pressing block and the transmission member; In the first state, the second elastic member drives the transmission member to move toward one side of the limiting assembly; in the second state, the transmission member moves toward a side away from the limiting assembly to stretch the second elastic member.

8. The push-pull lock according to claim 7, characterized in that: The transmission member is provided with a movable groove extending along the length direction of the transmission member, and the pressing block is arranged in the movable groove.

9. The push-pull lock according to claim 1, characterized in that: A rotating shaft is provided at the rotating end of the handle, and the handle is rotatably connected to the shell via the rotating shaft; a third elastic member is provided on the outer side of the rotating shaft, and the third elastic member is respectively connected to the handle and the shell.

10. A door and window, characterized in that: It comprises a door and window body and the push-pull lock according to any one of claims 1 to 9, wherein the push-pull lock is installed on the door and window body.

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