Self-locking switch for roller shutter screen window
By designing a self-locking switch on the roller shutter screen, the combination of lock blocks, stop blocks and guide blocks is used to achieve simple locking and opening of the screen window, solving the cumbersome problems of the traditional opening process.
Patent Information
- Application Number
- CN202420721667.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-04-09
AI Technical Summary
The opening process of traditional roller blind screens is complicated, and it is necessary to press a special switch to retract the lock tongue and open it only after it is removed from the lock hole.
A self-locking switch for roller blind screens is designed, including setting a lock block and a stop block on the handle, setting a guide block group and a stop groove on the track assembly, connecting or disengaging the lock block with the stop block through the extension direction of the handle, thereby realizing the lock block and opening of the screens.
By pulling the handle in the direction of the screen body, the screen window can be locked and opened, which is simple to operate, conforms to the usage logic, and reduces learning costs.
Smart Images
Figure CN222558438U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a self-locking switch, in particular to a self-locking switch used on a rolling screen window. Background Art
[0002] Glass windows are one of the main building facilities in modern buildings. They can increase daylighting and replace air. However, there are two states of glass windows in use. One is that the windows are tightly closed and airtight; the other is that they are fully open, which allows insects, mosquitoes and flies to enter the room and affect the environment. For this reason, it is necessary to install screens on the indoor side of the glass windows. However, most traditional screens are integrated structures, that is, the screen is directly fixed in the window frame, and the window frame is set on the glass window. This type of screen structure is relatively backward and has been gradually eliminated. The newly emerging roller screens have been widely used because they are easy to pull out.
[0003] The basic structure of a rolling screen is to install grooved slide rails on the left and right sides of the window opening, and install a reel with a coil spring on the top of the window opening to clamp the upper side of the screen. The two sides of the screen corresponding to the slide rail are clamped by a rollable hard strip. The bottom edge of the screen is fixed on the handle, and the two ends of the cross bar are located in the groove of the slide rail. The screen is then opened or closed by pulling the handle.
[0004] Due to the existence of the coil spring, the screen window will automatically retract. Therefore, the screen window needs to be fixed by a locking mechanism when it is opened. Existing screen windows generally have a keyhole on the window frame, and then the lock tongue set on the handle cooperates with the keyhole to lock. When opening, it is necessary to press a special switch to retract the lock tongue so that the lock tongue can be opened after it is separated from the keyhole. The entire opening process is relatively cumbersome. Utility Model Content
[0005] In view of this, the utility model provides a self-locking switch for a rolling screen window. After the self-locking switch is assembled, the screen window body can be locked and opened by pulling a handle in the extending direction of the screen window body.
[0006] In order to solve the above technical problems, the technical solution of the utility model is to adopt a self-locking switch for rolling screen window, including a locking block arranged on the rolling screen window handle and a stop block arranged on the track assembly; when the handle moves in the extension direction of the screen window body, the locking block can be driven to connect with the stop block to balance the winding force of the coil spring on the screen window body, so that the screen window body forms a locked state; when the screen window body is in the locked state, the handle continues to move in the extension direction of the screen window body, the locking block can be driven to disengage from the stop block so that the screen window body can be rolled up under the pull of the coil spring; it also includes a retractable lock tongue arranged on the handle, the lock The extension and retraction direction of the tongue is perpendicular to the winding and extending direction of the screen window body; the locking block is fixed on the locking tongue and can move with the locking tongue; the track assembly is provided with a guide block group, and when the handle moves in the extending direction of the screen window body, the locking block can move to the stop block under the guidance of the guide block group so that the locking block is connected with the stop block to balance the winding force of the coil spring on the screen window body, thereby forming a locked state of the screen window body; when the screen window body handle continues to move in the extending direction of the screen window body in the locked state, the locking block can be disengaged from the stop block under the guidance of the guide block group so that the screen window body can be rolled up under the pull of the coil spring.
[0007] As a further improvement, the stop block is provided with a stop groove, and the locking block can be snapped into the stop groove; the opening direction of the stop groove is opposite to the winding direction of the screen body.
[0008] As an improvement, the locking block is an isosceles triangle, and the extending direction of the bottom edge thereof is consistent with the rolling direction of the screen window body. The stop groove is a V-shaped groove.
[0009] As another further improvement, the guide block group includes a guide block I, a guide block II, and a bottom groove which are arranged in sequence along the extending direction of the screen body; the stop block is arranged between the guide block I and the guide block II; when the locking block moves along the extending direction of the screen body, the guide block I can guide the locking block to the top surface of the stop block; the top surface of the stop block can guide the locking block to the guide block II; the guide block II can guide the locking block to the bottom groove; when the locking block moves along the winding direction of the screen body, the locking block can move from the bottom groove to the bottom surface of the stop block, and move into the stop groove under the guiding action of the bottom surface of the stop block.
[0010] As an improvement, the guide block group also includes a guide block III and a guide block IV arranged in sequence along the winding direction of the screen body; the stop block is arranged between the guide block III and the guide block IV; when the locking block is engaged in the stop groove, it moves along the extending direction of the screen body, can be separated from the stop groove and move to the guide block III and staggered with the stop groove under the guiding action of the guide block III, so that when the locking block moves along the winding direction of the screen body, it can move to the guide block IV and staggered with the guide block I under the guiding action of the guide block IV.
[0011] As an improvement, the guide surface of the guide block I is inclined toward the stop block, the top surface of the stop block is inclined toward the guide block II, the guide surface of the guide block II is inclined toward the bottom groove, and the bottom surface of the stop block is inclined toward the stop groove; the inclination direction of the guide surface of the guide block III is consistent with that of the guide surface of the guide block II; the guide surface of the guide block IV is inclination in the opposite direction to that of the guide surface of the guide block I, and they are symmetrically arranged.
[0012] As an improvement, the projections of the guide block I and the stop block along the extending direction of the screen window body overlap; the projections of the stop block and the guide block II along the extending direction of the screen window body overlap; the projections of the bottom groove and the stop block along the extending direction of the screen window body overlap; the projections of the stop block and the guide block III along the extending direction of the screen window body overlap.
[0013] The utility model is beneficial in that:
[0014] The self-locking switch for the rolling screen window with the above structure can lock and open the screen window body by pulling the handle in the extension direction of the screen window body, without pressing other switches. The operation is very convenient and conforms to the use logic, reducing the learning cost.
[0015] In addition, the utility model provides support for the lock block through the telescopic lock tongue. During use, only the lock contacts and moves with the guide block group and the stop block. The telescopic direction of the lock tongue is perpendicular to the winding and stretching direction of the screen body 2. The handle provides up and down movement, and the lock tongue provides horizontal movement, so that the lock block can be positioned very accurately and cover all points within the range of the facade. Compared with the prior art that provides horizontal movement through the arc swing of the swing arm, the lock block can be combined with the stop block very accurately without slipping. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the rolling screen window when the screen window body is extended and locked.
[0017] Figure 2 It is a schematic diagram of the structure of the rolling screen window when the screen window body is rolled up.
[0018] Figure 3 It is a structural schematic diagram of the utility model.
[0019] Figure 4~Figure 15 Schematic diagram of the movement path of the lock block.
[0020] Markings in the figure: 1 winding box, 2 screen body, 3 track assembly, 4 handle, 5 locking mechanism.
[0021] 51 lock tongue, 52 lock block, 53 stop block, 54 guide block I, 55 guide block II, 56 bottom groove, 57 guide block III, 58 guide block IV. DETAILED DESCRIPTION
[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.
[0023] like Figure 1~Figure 3 As shown, the rolling screen described in the utility model includes a winding box 1 and a track assembly 3 arranged at both ends of the winding box 1 and laterally and perpendicular to the winding box 1; a rotating shaft for rolling up the screen body 2 is arranged along its axial direction in the winding box 1, and a winding spring (not shown in the figure) for automatically winding up the rotating shaft is arranged on the rotating shaft; one end of the screen body 2 is fixed on the rotating shaft, and the other end extends out of the winding box 1 and is connected to a handle 43.
[0024] The self-locking switch provided by the utility model is arranged on the track component 3 and the handle 4, which can be locked in coordination; the self-locking switch includes a locking block 52 arranged on the handle 4 and a stop block 53 arranged on the track component 3; when the handle 4 moves in the extension direction of the screen window body 2, the locking block 52 can be driven to connect with the stop block 53 to balance the winding force of the coil spring on the screen window body 2 so that the screen window body 2 forms a locked state; when the screen window body 2 continues to move in the extension direction of the screen window body 2 in the locked state, the locking block 52 can be driven to disengage from the stop block 53 so that the screen window body 2 can be rolled up under the pull of the coil spring.
[0025] like Figure 3 As shown, specifically, it also includes a retractable lock tongue 51 arranged on the handle 4, and the retracting direction of the lock tongue 51 is perpendicular to the winding and extending direction of the screen window body 2; the lock block 52 is fixed on the lock tongue 51 and can move with the lock tongue 51; the track assembly 3 is provided with a guide block group, when the handle 4 moves in the extending direction of the screen window body 2, the lock block 52 can move to the stop block 53 under the guidance of the guide block group so that the lock block 52 is connected with the stop block 53 to balance the winding force of the coil spring on the screen window body, so that the screen window body forms a locked state; when the screen window body 2 continues to move in the extending direction of the screen window body 2 in the locked state, the lock block 52 can be disengaged from the stop block 53 under the guidance of the guide block group so that the screen window body 2 can be rolled up under the pull of the coil spring.
[0026] In the utility model, the lock block 52 is supported by the telescopic lock tongue 51. During use, only the lock 52 contacts and moves with the guide block group and the stop block 53. The telescopic direction of the lock tongue 51 is perpendicular to the winding and stretching direction of the screen window body 2. For example, general rolling screen windows are stretched or rolled up and down, so the movement direction of the lock tongue 51 is the horizontal direction. The handle 4 provides vertical movement and the lock tongue 51 provides horizontal movement, so that the lock block can be positioned very accurately and cover all points within the range of the facade. Compared with the prior art that provides horizontal movement through the arc swing of the swing arm, the lock block 52 can be combined with the stop block 53 very accurately without slipping.
[0027] In order to facilitate the combination of the locking block 52 and the stop block 53 to form a connection, in this embodiment, the stop block 53 is provided with a stop groove, and the locking block 52 can be snapped into the stop groove; the opening direction of the stop groove is opposite to the winding direction of the screen body 2. More specifically, the locking block 52 is an isosceles triangle, the extension direction of its bottom side is consistent with the winding direction of the screen body 2, and the stop groove is a V-shaped groove.
[0028] For example, the extension direction of the screen body 2 is set from top to bottom, and the reeling direction is set from bottom to top. Then in this embodiment, the opening direction of the stop groove should be downward. In this way, when the locking block 52 is inserted into the stop groove, the reeling direction of the screen body 2 is upward and the stop groove opens downward, so that the locking block 52 can be firmly clamped in the stop groove when the screen body is pulled.
[0029] In addition, the isosceles triangle-shaped locking block 52 and the V-shaped stop groove also have a good positioning and guiding effect. In this embodiment, the shape of the locking block 52 is set to be a vertical isosceles triangle, the purpose of which is to facilitate the coordination and guidance of its hypotenuse with the guide block. The isosceles triangle shape can be an obtuse triangle.
[0030] The following is an introduction to the guidance module.
[0031] In the utility model, the guide block group includes a guide block I54, a guide block II55, and a bottom groove 56 which are arranged in sequence along the extension direction of the screen window body; the stop block 53 is arranged between the guide block I54 and the guide block II55; when the locking block 52 moves along the extension direction of the screen window body 2, the guide block I54 can guide the locking block 52 to the top surface of the stop block 53; the top surface of the stop block 53 can guide the locking block 52 to the guide block II55; the guide block II55 can guide the locking block 52 to the bottom groove 56; when the locking block 52 moves along the winding direction of the screen window body 2, the locking block 52 can move from the bottom groove 56 to the bottom surface of the stop block 53, and move into the stop groove under the guiding action of the bottom surface of the stop block 53.
[0032] The purpose of the guide block is to form a lock. After the lock block 52 moves into the stop groove, it reaches a balanced state under the action of the winding spring reeling force, thereby forming a lock so that the screen window body 2 is not reeled.
[0033] The guide block group also includes a guide block III57 and a guide block IV58 arranged in sequence along the winding direction of the screen window body 2; the stop block 53 is arranged between the guide block III57 and the guide block IV58; when the locking block 52 is engaged in the stop groove, it moves along the extending direction of the screen window body 2, and can be disengaged from the stop groove and move to the guide block III57 and staggered with the stop groove under the guiding action of the guide block III57, so that when the locking block 52 moves along the winding direction of the screen window body 2, it can move to the guide block IV58 and staggered with the guide block I54 under the guiding action of the guide block IV58.
[0034] The function of the guide block is to allow the lock block 52 to enter a free state from a locked state. The operator pulls down to disengage the lock block 52 from the stop groove, and enters the range of the guide block III57 and is guided to be offset from the stop groove. At this time, the operator lets go, and the screen body 2 rebounds, thereby pulling the lock block 52 upward to the guide block IV58, and under the action of the guide block IV58, it is offset from the guide block I54 to avoid interference with the guide block I54.
[0035] In this embodiment, the guide surface of the guide block I54 is inclined toward the stop block 53, the top surface of the stop block 53 is inclined toward the guide block II55, the guide surface of the guide block II55 is inclined toward the bottom groove 56, and the bottom surface of the stop block 53 is inclined toward the stop groove; the guide surface of the guide block III57 is inclined in the same direction as the guide surface of the guide block II55; the guide surface of the guide block IV58 is inclined in the opposite direction to the guide surface of the guide block I54, and they are arranged symmetrically. Through the above arrangement of the guide blocks, the locking block 52 can run according to the set route.
[0036] In order to ensure the connection between the guide blocks, the projections of the guide block I54 and the stop block 53 along the extension direction of the screen body overlap; the projections of the stop block 53 and the guide block II55 along the extension direction of the screen body overlap; the projections of the bottom groove 56 and the stop block 53 along the extension direction of the screen body 2 overlap; the projections of the stop block 53 and the guide block III57 along the extension direction of the screen body 2 overlap. After such arrangement, the lock block 52 is prevented from slipping when jumping between the guide blocks 53.
[0037] In order to balance the force during locking, the handle 4 is rod-shaped, and locking blocks 52 are provided at both ends of the handle 4 , and stop blocks 53 are provided on the two track mechanisms 3 .
[0038] This embodiment also includes a damper for buffering the reeling speed of the screen window body 2 to prevent the screen window body 2 from being reeled in too fast.
[0039] Figure 4~Figure 15 The movement of the lock block is shown, and the arrangement of the roller blind screen is as follows Figure 1 , Figure 2 The stretching direction of the screen window body is from top to bottom and the rolling direction is from bottom to top.
[0040] Figure 4 When the screen window needs to be extended, the handle is pulled downward so that the locking block moves from top to bottom and enters the guide surface of the guide block 1.
[0041] Figure 5 , the locking block moves to the edge of the guide block I.
[0042] Figure 6 , the locking block moves vertically downward and enters the top surface of the stop block.
[0043] Figure 7 , the locking block moves to the edge of the brake block under the guidance of the top surface of the stop block.
[0044] Figure 8 , the locking block moves vertically downward and enters the guide block II.
[0045] Fig. 9 , the locking block enters the bottom groove. At this time, the operator lets go, and the screen body rebounds and drives the locking block to move upward.
[0046] Fig.10 The locking block enters the bottom surface of the stop block.
[0047] Fig.11 The locking block enters the stop groove under the guidance of the bottom surface of the stop block, and a locking state is formed at this time.
[0048] Fig.12 When the screen window body needs to be rolled up, the operator pulls the handle downward, so that the locking block moves downward, leaves the locking groove, and enters the guide surface of the guide block III.
[0049] Fig.13 The locking block is staggered with the locking groove under the action of the guide block III. At this time, the operator lets go, causing the screen body to rebound and the locking block to move upward.
[0050] Fig.14 The locking block moves toward its edge under the action of the guide block IV.
[0051] Fig.15 The locking block moves to the edge of the guide block IV so as to be staggered with the guide block I to avoid interference.
[0052] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A self-locking switch for a rolling screen window, characterized in that: The invention comprises a locking block arranged on the handle of the rolling screen window and a stop block arranged on the track assembly; when the handle moves in the extension direction of the screen window body, the locking block can be driven to connect with the stop block to balance the winding force of the coil spring on the screen window body so that the screen window body forms a locked state; when the screen window body is in the locked state, the handle continues to move in the extension direction of the screen window body, the locking block can be driven to disengage from the stop block so that the screen window body can be rolled up under the pull of the coil spring; and the invention also comprises a retractable locking tongue arranged on the handle, the retracting direction of the locking tongue being perpendicular to the rolling extension direction of the screen window body. The lock block is fixed on the lock tongue and can move with the lock tongue; the track assembly is provided with a guide block group, and when the handle moves in the extending direction of the screen window body, the lock block can move to the stop block under the guiding action of the guide block group, so that the lock block is connected with the stop block to balance the winding force of the coil spring on the screen window body, so that the screen window body forms a locked state; when the screen window body continues to move in the extending direction of the screen window body in the locked state, the lock block can be separated from the stop block under the guiding action of the guide block group, so that the screen window body can be rolled up under the pulling of the coil spring.
2. A self-locking switch for rolling screen window according to claim 1, characterized in that: The stop block is provided with a stop groove, and the locking block can be clamped in the stop groove; the opening direction of the stop groove is opposite to the rolling direction of the screen window body.
3. A self-locking switch for rolling screen window according to claim 2, characterized in that: The locking block is an isosceles triangle, and the extending direction of the bottom side thereof is consistent with the rolling direction of the screen window body; the stopping groove is a V-shaped groove.
4. A self-locking switch for rolling screen window according to claim 3, characterized in that: The guide block group includes a guide block I, a guide block II, and a bottom groove which are arranged in sequence along the extending direction of the screen window body; the stop block is arranged between the guide block I and the guide block II; when the locking block moves along the extending direction of the screen window body, the guide block I can guide the locking block to the top surface of the stop block; the top surface of the stop block can guide the locking block to the guide block II; the guide block II can guide the locking block to the bottom groove; when the locking block moves along the winding direction of the screen window body, the locking block can move from the bottom groove to the bottom surface of the stop block, and move into the stop groove under the guiding action of the bottom surface of the stop block.
5. A self-locking switch for rolling screen window according to claim 4, characterized in that: The guide block group also includes a guide block III and a guide block IV which are arranged in sequence along the winding direction of the screen body; the stop block is arranged between the guide block III and the guide block IV; when the locking block is clamped in the stop groove, it can be separated from the stop groove and move to the guide block III when it moves along the extending direction of the screen body, and be offset from the stop groove under the guiding action of the guide block III, so that when the locking block moves along the winding direction of the screen body, it can move to the guide block IV and be offset from the guide block I under the guiding action of the guide block IV.
6. A self-locking switch for rolling screen window according to claim 5, characterized in that: The guide surface of the guide block I is inclined toward the stop block, the top surface of the stop block is inclined toward the guide block II, the guide surface of the guide block II is inclined toward the bottom groove, and the bottom surface of the stop block is inclined toward the stop groove; the inclination direction of the guide surface of the guide block III is consistent with that of the guide surface of the guide block II; the inclination direction of the guide surface of the guide block IV is opposite to that of the guide surface of the guide block I, and they are arranged symmetrically.
7. A self-locking switch for rolling screen window according to claim 6, characterized in that: The projections of the guide block I and the stop block along the extending direction of the screen window body overlap; the projections of the stop block and the guide block II along the extending direction of the screen window body overlap; the projections of the bottom groove and the stop block along the extending direction of the screen window body overlap; the projections of the stop block and the guide block III along the extending direction of the screen window body overlap.