A rear-mounted lock

Abstract

The utility model belongs to door and window technical field provides a kind of rear-mounted lock, including sliding seat and limiting component;The sliding seat can be put into profile sliding slot from groove surface direction, the profile sliding slot is equipped with the sliding hole that extends along length direction and is penetrated through groove bottom, the side of the sliding seat towards groove bottom is equipped with transmission part, the transmission part passes through the sliding hole and extends to profile inner cavity, the transmission part moves synchronously with driving part;The limiting component includes base, limiting part and first elastic element;The base is fixed on the groove surface of the profile sliding slot, and it is located at the side of the sliding seat away from groove bottom;The limiting part is rotatably connected on the base;In the open state of door and window fan, the limiting part is urged to be abutted on the sliding seat to restrict its sliding by the elastic force of the first elastic element.The rear-mounted lock of the utility model is convenient to disassemble and assemble, and does not need to be preinstalled in advance.

Description

Technical Field

[0001] This utility model belongs to the field of door and window technology, specifically relating to a rear-mounted locking device. Background Technology

[0002] If doors and windows are accidentally closed after being opened, it can easily damage the hardware such as door and window locks. To prevent accidental closure, locking devices can be installed on the door and window frames to lock and restrict the drive components, thus increasing door and window security. However, existing anti-misoperation locking devices are generally pre-assembled on the door and window frames. When installers forget to assemble them or need to replace them, other hardware must be disassembled, which is cumbersome and inconvenient. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a rear-mounted locking device that is easy to install and remove and does not require pre-installation.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A rear-mounted locking device includes a sliding seat and a limiting assembly;

[0006] The sliding seat can be inserted into the profile slide groove from the groove surface direction. The profile slide groove is provided with a sliding hole that penetrates the bottom of the groove and extends along the length direction. A transmission component is provided on the side of the sliding seat facing the bottom of the groove. The transmission component passes through the sliding hole and extends into the inner cavity of the profile. The transmission component moves synchronously with the driving component.

[0007] The limiting component includes a base, a limiting member, and a first elastic element; the base is fixed to the groove surface of the profile slide and is located on the side of the sliding seat away from the bottom of the groove; the limiting member is rotatably connected to the base; when the door or window sash is open, one end of the limiting member is pressed against the sliding seat by the elastic force of the first elastic element to restrict its sliding.

[0008] In a preferred embodiment of this utility model, the sliding seat is provided with at least one clearance groove, which extends along the length direction; the base and the profile are locked and fixed by a locking member, which passes through the base and the clearance groove and is then inserted into the profile; in the locked state, the two sides of the base abut against the groove surface of the profile sliding groove.

[0009] In a preferred embodiment of this utility model, the base is provided with a mounting hole in the middle, and the limiting member is rotatably connected in the mounting hole; under the elastic force of the first elastic element, one end of the limiting member abuts against the sliding seat, and the other end of the limiting member tilts away from the sliding seat.

[0010] In a preferred embodiment of this utility model, the sliding seat is provided with a connecting seat embedded in the sliding hole, and the connecting seat is provided with a blocking part for cooperating with the limiting member; when the door or window is open, one end of the limiting member abuts against the connecting seat and is located in front of the blocking part.

[0011] Preferably, the transmission component is detachably fixed to the connecting seat.

[0012] In a preferred embodiment of this utility model, the limiting member abuts against one end of the sliding seat as a limiting end, and the other end as an unlocking end; the unlocking end is provided with a protruding pressing block.

[0013] Preferably, the unlocking end is provided with a sliding cavity, the pressing block is retractably located in the sliding cavity, and a second elastic element is provided between the pressing block and the sliding cavity; an anti-detachment structure is provided between the pressing block and the sliding cavity to prevent the pressing block from detaching from the sliding cavity.

[0014] In a preferred embodiment of this utility model, the sliding seat is provided with a plurality of first noise-absorbing blocks, and each of the first noise-absorbing blocks is disposed on the side of the sliding seat facing the profile.

[0015] In a preferred embodiment of the present invention, the base is provided with a plurality of second noise-absorbing blocks, and each second noise-absorbing block is disposed on the side of the base facing the sliding seat.

[0016] In a preferred embodiment of this utility model, the sliding seat is provided with limiting blocks at both ends, and each limiting block protrudes and is respectively opposite to both ends of the base.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention can lock door and window locks, preventing them from operating when the door or window sash is open, thus preventing accidental operation. Furthermore, the sliding seat and base in this locking device can be assembled and fixed from the groove surface of the profile, eliminating the need for installation from the groove opening end. This allows for post-installation, reducing the impact of other hardware on the installation and removal of the locking device, and making assembly and disassembly convenient. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a perspective view (released state) of the rear-mounted locking device of this utility model.

[0021] Figure 2 for Figure 1 Exploded view.

[0022] Figure 3 for Figure 2 Exploded view of the limiting component, the first elastic element, the second elastic element, the connecting rod, and the pressing block.

[0023] Figure 4 for Figure 2 A three-dimensional view of the middle sliding seat.

[0024] Figure 5 This is a side view showing the limit component not installed on the profile and the sliding seat located in the profile groove.

[0025] Figure 6 for Figure 5 Sectional view of AA.

[0026] Figure 7 A side view showing the limiting component mounted on the profile, with the sliding seat located in the profile groove.

[0027] Figure 8 for Figure 7 A cross-sectional view of BB.

[0028] Figure 9 for Figure 8 A magnified view of A in the middle.

[0029] in:

[0030] 1-Sliding seat, 101-Limiting block, 102-Transmission component, 103-Connecting seat, 104-Fixing block, 105-Clearing groove, 106-Blocking part;

[0031] 2-Limiting component, 201-Base, 202-Limiting element, 203-Pressing block, 204-First elastic element, 205-Second elastic element, 206-Sliding cavity, 207-Clocking block, 208-Mounting hole, 209-Connecting rod, 2010-Guide groove, 2011-Fixing hole, 2012-Connecting hole;

[0032] 3-First silencer block;

[0033] 4-Second silencer block;

[0034] 5- Profile groove;

[0035] 6-Sliding hole;

[0036] 7- Profile inner cavity;

[0037] 8-Locking component. Detailed Implementation

[0038] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0040] See Figures 1-9 This embodiment discloses a rear-mounted locking device, including a sliding seat 1 and a limiting component 2.

[0041] The width of the sliding seat 1 is not greater than the width of the profile groove 5. The sliding seat 1 can be inserted into the profile groove 5 from the groove surface direction, so that the sliding seat 1 does not need to be installed from the groove opening end of the profile groove 5. The profile groove 5 is provided with a sliding hole 6 that penetrates through the bottom of the groove and extends along the length direction. A transmission member 102 is provided on the side of the sliding seat 1 facing the bottom of the groove. The transmission member 102 passes through the sliding hole 6 and extends into the inner cavity 7 of the profile. The transmission member 102 is adapted to the driving component and can move synchronously with the driving component.

[0042] The limiting component 2 includes a base 201, a limiting member 202, and a first elastic element 204. The base 201 is fixed to the groove surface of the profile slide 5 and is located on the side of the sliding seat 1 away from the bottom of the groove, which can limit the sliding seat 1 and prevent the sliding seat 1 from coming out of the groove surface of the profile slide 5. In addition, the sliding seat 1 in this embodiment is provided with limiting blocks 101 at both ends. Each limiting block 101 protrudes and is opposite to both ends of the base 201. This can limit the sliding stroke of the sliding seat 1 in the length direction by the limiting blocks 101 and the ends of the base 201, and also prevent the sliding seat 1 from falling out of the groove opening of the profile slide 5. The limiting member 202 is rotatably connected to the base 201. When the door or window sash is open, one end of the limiting member 202 is pressed against the sliding seat 1 by the elastic force of the first elastic element 204 to limit its sliding.

[0043] Furthermore, the sliding seat 1 is provided with at least one clearance groove 105, which extends along the length direction. The base 201 and the profile are locked and fixed by a locking member 8, which passes through the base 201, through the clearance groove 105, and then into the profile. In the locked state, the two sides of the base 201 abut against the groove surface of the profile slide groove 5. Furthermore, a gap can be left between the base 201 and the sliding seat 1 to allow the sliding seat 1 to move on the profile slide groove 5. In this embodiment, the locking member 8 can be a screw, with a screw hole pre-drilled in the base 201. After the screw passes through the screw hole, it passes through the clearance groove 105 and continues to pierce the profile, thereby fixing the base 201 to the profile without affecting the sliding of the sliding seat 1. This fixing method can both prevent the sliding seat 1 from falling off and allow assembly from outside the profile. The assembly and disassembly process is not affected by other hardware, thus achieving a post-assembly effect.

[0044] Furthermore, in this embodiment, there are two clearance slots 105, which are spaced apart; correspondingly, there are also two locking members 8 on the base 201, which are located at both ends of the base 201, which helps to improve the fixing effect of the base 201.

[0045] Furthermore, the base 201 has a mounting hole 208 in the middle, and the limiting member 202 is rotatably connected in the mounting hole 208. Under the elastic force of the first elastic element 204, one end of the limiting member 202 abuts against the sliding seat 1, and the other end of the limiting member 202 tilts away from the sliding seat 1. The rotatable connection between the limiting member 202 and the mounting hole 208 can be achieved by a connecting rod 209 or by other means. Specifically, the limiting member 202 has a fixing hole 2011, and the connecting rod 209 passes through the fixing hole 2011 to form a rotating whole with the limiting member 202. The mounting hole 208 of the base 201 has connecting holes 2012 on both sides, and the two ends of the connecting rod 209 can be rotatably assembled in the connecting holes 2012 on both sides, thereby realizing the rotatability of the limiting member 202. In this embodiment, the first elastic element 204 can be a torsion spring, which is fitted on the connecting rod 209.

[0046] In this embodiment, the sliding seat 1 is provided with a connecting seat 103 embedded in the sliding hole 6. The connecting seat 103 is provided with a blocking part 106 for cooperating with the limiting member 202. When the door or window is open, one end of the limiting member 202 abuts against the connecting seat 103 and is located in front of the blocking part 106. Here, "in front" refers to... Figure 6 or Figure 8 The right side of the symbol can be understood as the direction of movement of the drive components when closing doors and windows.

[0047] In addition to using the blocking part 106 to cooperate with the limiting member 202 to form a locking effect, one end of the limiting member 202 can be set to directly abut against a certain plane of the sliding seat 1. The frictional resistance between the end of the limiting member 202 and the plane can also lock the sliding seat 1, thereby locking the door and window locks and door and window sashes to prevent accidental closing.

[0048] Furthermore, the transmission component 102 is detachably fixed to the connecting seat 103. Specifically, in this embodiment, the transmission component 102 can first be riveted to a fixing block 104, and then the fixing block 104 can be fixed to the sliding seat 1 with screws. Of course, in this embodiment, the transmission component 102 can also be integrally formed with the fixing block 104 and the connecting seat 103, or other detachable fixing methods such as snap-fit ​​structures can be used.

[0049] In this embodiment, the transmission component 102 can be a transmission pin, which is adapted to the handle device of the door and window lock. Specifically, the handle device generally includes a handle assembly and a transmission mechanism. By operating the handle assembly, the transmission bar in the transmission mechanism can be moved, thereby controlling the opening and closing of the door and window lock. In this embodiment, the transmission bar serves as the driving component. A U-shaped block can be set on the transmission bar, and the transmission pin is inserted into the U-shaped block, so that the movement of the transmission bar simultaneously drives the movement of the transmission pin. That is, by limiting the sliding seat 1 with the limiting component 202, the transmission bar in the transmission mechanism is also restricted by the transmission pin and cannot move, achieving a locking effect to prevent accidental operation. Of course, the connection relationship between the transmission pin and the transmission bar can be varied and is not limited to using a U-shaped block.

[0050] In this embodiment, the limiting member 202 abuts against one end of the sliding seat 1, which is the limiting end, and the other end is the unlocking end. The unlocking end is provided with a protruding pressing block 203. By setting the pressing block 203 so that it protrudes from the limiting member 202, it is convenient for the user to press and make the limiting member 202 rotate against the elastic force of the first elastic element 204, so that the limiting end no longer abuts against the blocking part 106, and the sliding seat 1 can move with the driving component, that is, the unlocking operation is completed.

[0051] Furthermore, the unlocking end is provided with a sliding cavity 206, and the pressing block 203 is retractably located in the sliding cavity 206. A second elastic element 205 is provided between the pressing block 203 and the sliding cavity 206. An anti-disengagement structure is provided between the pressing block 203 and the sliding cavity 206 to prevent the pressing block 203 from disengaging from the sliding cavity 206. The function of the anti-disengagement structure is to prevent the pressing block 203 from disengaging from the sliding cavity 206, especially when the second elastic element 205 elastically resets it, it can effectively prevent the pressing block 203 from disengaging. In this embodiment, the anti-disengagement structure is a plurality of locking blocks 207 provided on the side of the pressing block 203, and the side of the sliding cavity 206 is provided with a guide groove 2010. The locking blocks 207 are embedded in the guide groove 2010 and can slide along the guide groove 2010. The end of the guide groove 2010 can restrict the locking blocks 207, thereby achieving the anti-disengagement effect. By setting the second elastic element 205, the user's pressing feel can be improved on the one hand, and the pressing block 203 can be reset on the other hand.

[0052] To address the noise issue during sliding, a plurality of first noise-absorbing blocks 3 can be provided on the sliding seat 1 in this embodiment, with each first noise-absorbing block 3 positioned on the side of the sliding seat 1 facing the profile. By providing the first noise-absorbing blocks 3, the noise of the sliding seat 1 can be reduced or eliminated during sliding, making the opening and closing process of door and window locks quieter and improving the user experience. The number and arrangement of the first noise-absorbing blocks 3 in this embodiment can be flexibly set according to specific actual usage. For example, one first noise-absorbing block 3 can be provided at each end of the sliding seat 1, and can be fixed to the sliding seat 1 by means of fastening, snap-fitting, or other methods.

[0053] Additionally, several second noise-absorbing blocks 4 can be provided on the base 201, with each second noise-absorbing block 4 positioned on the side of the base 201 facing the sliding seat 1. The provision of the second noise-absorbing blocks 4 helps to reduce or eliminate noise generated at the contact points between the sliding seat 1 and the base 201, thus improving the user experience. The number and arrangement of the second noise-absorbing blocks 4 in this embodiment can be flexibly configured. For example, this embodiment has two second noise-absorbing blocks 4, located at opposite ends of the base 201.

[0054] This embodiment also discloses a lock, including a handle assembly, a transmission mechanism, and a rear-mounted locking device; the transmission component 102 of the rear-mounted locking device moves with the transmission bar of the transmission mechanism. Specific implementations of the handle assembly and transmission mechanism in this embodiment can be found in existing door and window hardware systems. For example, the handle assembly may include a handle, a base, and a square shaft; the transmission mechanism may include a housing, a gear transmission assembly, and a transmission bar; the square shaft of the handle assembly is connected to the gear transmission assembly, and rotating the handle drives the square shaft to rotate, thereby causing the gear transmission assembly to move, ultimately moving the transmission bar to achieve the opening and closing control of the door and window lock.

[0055] Furthermore, the rear-mounted locking device and lock of this embodiment can be applied to sliding windows, as well as other types of window or door products, effectively preventing accidental closing of door and window sashes and providing an anti-misoperation effect.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A rear-mounted locking device, characterized in that, Includes the sliding base and the limiting components; The sliding seat can be inserted into the profile slide groove from the groove surface direction. The profile slide groove is provided with a sliding hole that penetrates the bottom of the groove and extends along the length direction. A transmission component is provided on the side of the sliding seat facing the bottom of the groove. The transmission component passes through the sliding hole and extends into the inner cavity of the profile. The transmission component moves synchronously with the driving component. The limiting component includes a base, a limiting member, and a first elastic element; the base is fixed to the groove surface of the profile slide and is located on the side of the sliding seat away from the bottom of the groove; the limiting member is rotatably connected to the base; when the door or window sash is open, one end of the limiting member is pressed against the sliding seat by the elastic force of the first elastic element to restrict its sliding.

2. The rear-mounted locking device according to claim 1, characterized in that, The sliding seat is provided with at least one clearance groove, which extends along the length direction; the base and the profile are locked and fixed by a locking member, which is inserted into the base and through the clearance groove before being inserted into the profile; in the locked state, the two sides of the base abut against the groove surface of the profile sliding groove.

3. The rear-mounted locking device according to claim 1, characterized in that, The base has a mounting hole in the middle, and the limiting member is rotatably connected in the mounting hole; under the elastic force of the first elastic element, one end of the limiting member abuts against the sliding seat, and the other end of the limiting member tilts away from the sliding seat.

4. The rear-mounted locking device according to claim 1, characterized in that, The sliding seat is provided with a connecting seat embedded in the sliding hole, and the connecting seat is provided with a blocking part for cooperating with the limiting member; when the door or window is open, one end of the limiting member abuts against the connecting seat and is located in front of the blocking part.

5. The rear-mounted locking device according to claim 4, characterized in that, The transmission component is detachably fixed to the connecting seat.

6. The rear-mounted locking device according to any one of claims 1-5, characterized in that, The limiting member abuts against one end of the sliding seat as a limiting end, and the other end as an unlocking end; the unlocking end is provided with a protruding pressing block.

7. The rear-mounted locking device according to claim 6, characterized in that, The unlocking end is provided with a sliding cavity, the pressing block is retractably located in the sliding cavity, and a second elastic element is provided between the pressing block and the sliding cavity; an anti-detachment structure is provided between the pressing block and the sliding cavity to prevent the pressing block from detaching from the sliding cavity.

8. The rear-mounted locking device according to claim 1, characterized in that, The sliding seat is provided with a plurality of first noise-absorbing blocks, each of which is located on the side of the sliding seat facing the profile.

9. The rear-mounted locking device according to claim 1 or 8, characterized in that, The base is provided with a plurality of second noise-absorbing blocks, each of which is located on the side of the base facing the sliding seat.

10. The rear-mounted locking device according to claim 1, characterized in that, The sliding seat has limiting blocks at both ends, and each limiting block protrudes and is opposite to both ends of the base.

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