Bidirectional transmission lock box adaptive to extremely-narrow frame profile

Abstract

The utility model discloses a bidirectional transmission lock box adaptive to an extremely narrow frame section bar, which comprises a sliding seat, a box body arranged in the middle of the sliding seat, a transmission component arranged in the box body in a sliding manner, a first transmission rod and a second transmission rod which are arranged in the box body in a sliding manner, and a locking component arranged on the first transmission rod and the second transmission rod, the first transmission rod and the second transmission rod synchronously and reversely slide along the sliding seat through a transmission assembly, and the transmission assembly comprises a lock shaft arranged on the box body in a penetrating mode, a driving gear arranged on the lock shaft, a first rack arranged at one end of the first transmission rod and a second rack arranged at one end of the second transmission rod. The first rack and the second rack are engaged with the upper side and the lower side of the driving gear correspondingly, and the first rack is located in the groove of the sliding base. The bidirectional transmission lock box overcomes a series of defects that an existing bidirectional transmission lock box cannot be matched with an ultra-narrow frame aluminum alloy profile, the application range is not comprehensive and the like, can be matched with a narrow frame aluminum alloy profile, and is high in adaptability, and doors and windows are high in attractiveness.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hardware fittings, in particular to a bidirectional drive lock box adapted to ultra-narrow frame profiles. Background Art

[0002] The door and window lock box is a commonly used lock for casement doors and windows. During use, the door and window lock box is installed on the window sash profile, and the lock point seat is installed on the window frame profile. The door and window lock box and the lock point seat are used in cooperation to realize the opening and closing of the doors and windows. Currently, the door and window lock box includes a box body, on which a transmission gear and a transmission mechanism are provided. The transmission mechanism is connected to a lock bar. Through the cooperation of the transmission gear and the transmission mechanism, the lock bar moves up and down, so that the lock pin on the lock bar is inserted into the lock point seat on the other side, thereby realizing the opening and closing of the doors and windows.

[0003] Currently, for reasons such as improving the aesthetics and light transmittance of doors and windows, the width of the lock box installation profile of the window frame is also made narrower and narrower. For example, for the currently used ultra-narrow European standard aluminum alloy door and window profiles, the center distance interval from the profile slot surface to the rotation shaft installation hole has reached a specification of 5.5 mm. The size of the transmission lock box needs to be adjusted according to the size of the window frame profile to meet the requirements. For ultra-narrow aluminum alloy door and window profiles, due to the reduction of the interval on the side of the rotation shaft installation hole, it is difficult to adapt the existing design of the transmission lock box, and generally only a unidirectional transmission lock box can be equipped. Especially for a bidirectional drive lock box, since it needs to drive two transmission rods simultaneously, it is difficult to reduce the height of the lock box. Due to the relatively complex internal transmission structure of the existing bidirectional drive lock box, it is difficult to further reduce the center distance interval from the profile slot surface to the rotation shaft installation hole. Generally, it can only be adapted to window frames with a specification of about 10 mm and cannot be adapted to ultra-narrow frame aluminum alloy profiles with a width of about 5 mm. At present, the market share of ultra-narrow frame profiles is increasing, resulting in an incomplete adaptation range. Therefore, a bidirectional drive lock box that can be adapted to ultra-narrow frame profiles is needed. Summary of the Invention

[0004] In order to solve certain or some technical problems existing in the prior art, the purpose of this application is to provide a bidirectional drive lock box adapted to ultra-narrow frame profiles, which solves a series of defects such as the existing bidirectional drive lock box not being able to be adapted to ultra-narrow frame aluminum alloy profiles, resulting in an incomplete application range. It can be adapted to narrow frame aluminum alloy profiles, has high adaptability, and makes the doors and windows highly aesthetic.

[0005] To solve the above existing technical problems, the present application is implemented by adopting the following technical solutions:

[0006] A two-way drive lock box adapted to an extremely narrow frame profile, comprising a sliding seat, a box body provided in the middle of the sliding seat, a transmission assembly slidably provided in the box body, a first transmission rod and a second transmission rod slidably provided in the box body, and a locking assembly provided on the first transmission rod and the second transmission rod. The first transmission rod and the second transmission rod slide synchronously and reversely along the sliding seat through the transmission assembly. The transmission assembly includes a lock shaft penetrating through the box body, a driving gear provided on the lock shaft, a first rack provided at one end of the first transmission rod, and a second rack provided at one end of the second transmission rod. The first rack and the second rack are respectively engaged on the upper and lower sides of the driving gear, and the first rack is located in the groove of the sliding seat.

[0007] Preferably, the first rack is horizontally arranged and integrally formed with the first transmission rod. The second transmission rod has an L-shaped structure and forms a Z-shaped structure after being integrally formed with the second rack. The tooth grooves of the first rack and the second rack are both recessed inward.

[0008] Preferably, a clamping block is further provided on one side of the box body.

[0009] Preferably, the box body includes two shell bodies, a clamping assembly provided on both sides of the shell bodies, a first positioning hole, a second positioning hole, a plurality of positioning grooves and positioning pins provided on the shell bodies. A sliding clamping groove is provided at the bottom of the box body. Both sides of the first transmission rod and the second transmission rod are provided in the sliding clamping groove. The two shell bodies are fastened and fixed to each other. Both sides of the driving gear are installed in the two first positioning holes through the lock shaft. One end of the positioning pin in the shell body is inserted into the positioning groove of the other shell body.

[0010] Preferably, two insertion pins are provided on the inner side of the clamping block. Two third positioning holes matched with the insertion pins are provided on the box body. Two inwardly protruding limiting grooves are further provided on the inner side of the shell body. A rubber clamping ring protruding upward is provided between the two limiting grooves. The inserted insertion pins are fastened and fixed through the rubber clamping ring.

[0011] Preferably, the locking assembly includes a lock pin and a stop block respectively provided at the bottoms of the first transmission rod and the second transmission rod.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] The transmission components inside the transmission lock box are extremely simplified in design. The driving gear is arranged in the box body with the lock shaft as the rotation axis. The first rack for driving the first transmission rod and the second rack for driving the second transmission rod are respectively engaged on the upper and lower sides of the driving gear. And the first rack is located in the groove of the sliding seat. When the lock shaft is driven, it can realize the bidirectional synchronous sliding of the first transmission rod and the second transmission rod. At the same time, the height of the whole box body is shorter, and the height from the axis of the central mounting hole of the lock shaft to the opening surface of the sliding seat reaches a center distance of 5.5 mm, thus meeting the size requirements of the current extremely narrow frame aluminum alloy profiles. After adopting this structure, the overall height of the bidirectional transmission lock box is lower than that of the traditional bidirectional transmission lock box. The height from the axis of the central mounting hole of the lock shaft to the opening surface of the sliding seat is smaller, which can better adapt to different specifications of narrow frame aluminum alloy profiles, with high adaptability and high aesthetic degree of doors and windows. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an exploded view of the present utility model, showing the structure inside the box body;

[0015] Figure 2 It is a schematic diagram of the combined structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the housing in the present utility model;

[0017] In the figure: 1. First rack; 2. Sliding card slot; 3. Rubber retaining ring; 4. Limiting slot; 5. Sliding seat; 6. Locking assembly; 7. First transmission rod; 8. Box body; 9. Third positioning hole; 10. Positioning slot; 11. Transmission assembly; 12. Driving gear; 13. Lock shaft; 14. Second rack; 15. Clamping assembly; 16. Stop block; 17. Lock pin; 18. Second transmission rod; 19. Housing; 20. Positioning pin; 21. Second positioning hole; 22. First positioning hole; 23. Clamping block; 24. Plug pin. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, in combination with the drawings and specific embodiments, the present application will be further described. It should be noted that, on the premise of no conflict, the following described embodiments or technical features can be arbitrarily combined with each other to form new embodiments.

[0019] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0020] The terms "first", "second", etc. in this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same category and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0021] As Figure 1 and Figure 2 shown, a two-way drive lock box adapted to an extremely narrow frame profile includes a sliding seat 5, a box body 8 provided in the middle of the sliding seat 5, a drive assembly 11 slidably provided in the box body 8, a first drive rod 7 and a second drive rod 18 slidably provided in the box body 8, and a locking assembly 6 provided on the first drive rod 7 and the second drive rod 18. The first drive rod 7 and the second drive rod 18 slide synchronously and in opposite directions along the sliding seat 5 through the drive assembly 11. The drive assembly 11 includes a lock shaft 13 penetrating through the box body 8, a drive gear 12 provided on the lock shaft 13, a first rack 1 provided at one end of the first drive rod 7, and a second rack 14 provided at one end of the second drive rod 18. The first rack 1 and the first rack 1 are respectively engaged on the upper and lower sides of the drive gear 12, and the first rack 1 is located in the groove of the sliding seat 5.

[0022] During actual use, the slide base 5 generally adopts a U-shaped groove design. The slide base 5 is installed in the middle of the slide base 5, and the transmission assembly 11 is installed in the slide base 5. Locking assemblies 6 are symmetrically installed on both the first transmission rod 7 and the second transmission rod 18. A part of the first transmission rod 7 and the second transmission rod 18 is located inside the box body 8 and cooperates with the transmission assembly 11, while the outer part is located in the groove of the slide base 5. They slide relatively in opposite directions along the groove of the slide base 5 simultaneously through the transmission assembly 11. In order to make the two-way transmission lock box of the transmission adapt to extremely narrow border profiles, the transmission assembly 11 has been improved. Among them, the lock shaft 13 for installing the handle penetrates through the box body 8, and the driving gear 12 is arranged in the box body 8 with the lock shaft 13 as the rotation axis. The first rack 1 for driving the first transmission rod 7 and the second rack 14 for driving the second transmission rod 18 are respectively engaged on the upper and lower sides of the driving gear 12, and the first rack 1 is located in the groove of the slide base 5. When the lock shaft 13 is driven, it can realize the two-way synchronous sliding of the first transmission rod 7 and the second transmission rod 18, and at the same time, the overall height of the entire box body 8 is shorter, so that the height from the axis of the central mounting hole of the lock shaft 13 to the opening surface of the slide base 5 reaches a center distance of 5.5 mm, thus meeting the size requirements of the current extremely narrow border aluminum alloy profiles. After adopting this structure, the two-way transmission lock box can be made to have a lower overall height compared to the traditional two-way transmission lock box, and the height from the axis of the central mounting hole of the lock shaft 13 to the opening surface of the slide base 5 is smaller, which can better adapt to different specifications of narrow border aluminum alloy profiles, with high adaptability and high aesthetic degree for doors and windows. The transmission assembly 11 inside the entire two-way transmission lock box is only composed of 3 parts, making it truly achieve a minimalist design, enabling the distance from the central hole to the end face of the entire lock shaft 13 to be minimized, with simpler driving, effectively solving the problem that the distance between the central holes of the lock shafts of the existing two-way transmission lock boxes is too large from the profile border, resulting in difficulty in adapting to narrow and small borders.

[0023] Further improvement is made as follows: the first rack 1 is horizontally arranged and integrally formed with the first transmission rod 7. The second transmission rod 18 has an L-shaped structure and forms a Z-shaped structure after being integrally formed with the second rack 14. The tooth grooves of the first rack 1 and the second rack 14 are both recessed inward.

[0024] The first rack 1 and the first transmission rod 7 are integrally formed and horizontally arranged in the U-shaped chute. The convex teeth of the first rack 1 are formed by inward depression through the tooth grooves. The second transmission rod 18 has an L-shaped structure and forms a Z-shaped structure after being integrally formed with the second rack 14. The convex teeth of the second rack 14 are also formed by inward depression through the tooth grooves, enabling the driving gear 12 to be inserted inwardly in a recessed manner when cooperating with the first rack 1 and the second rack 14. Thus, the overall height of the driving gear 12 and the two side racks is minimized during driving. While reducing the height of the box body 8, it ensures that the height from the axis of the central mounting hole of the lock shaft 13 to the opening surface of the slide seat 5 reaches a center distance of 5.5 mm or even smaller, enabling the two-way transmission lock box to adapt to different forms of extremely narrow frame aluminum profiles, thereby solving a series of defects such as incomplete application range, with high adaptability and high aesthetic degree of doors and windows.

[0025] Further improved, a clamping block 23 is also provided on one side of the box body 8.

[0026] When installing the box body 8 and the frame profile, the clamping block 23 can fill the gap between the box body 8 and the frame profile, so that one side of the installed box body 8 is attached to the side surface of the frame profile, making the installed transmission lock box more stable.

[0027] Further improved as Figure 3 shown, the box body 8 includes two shells 19, clamping components 15 provided on both sides of the shell 19, a first positioning hole 22, a second positioning hole 21, a plurality of positioning grooves 10 and positioning pins 20 provided on the shell 19. A sliding card slot 2 is provided at the bottom of the box body 8. Both sides of the first transmission rod 7 and the second transmission rod 18 are arranged in the sliding card slot 2. The two shells 19 are fastened and fixed to each other. Both sides of the driving gear 12 are installed in the two first positioning holes 22 through the lock shaft 13. One end of the positioning pin 20 in the shell 19 is inserted into the positioning groove 10 of the other shell 19.

[0028] The box body 8 is formed by splicing two identical shell bodies 19. Among them, the shell body 19 includes a first positioning hole 22, a second positioning hole 21, a positioning groove 10 and a positioning pin 20. The shell body 19 is generally made of metal material. The two shell bodies 19 are buckled with each other. During the buckling process, the positioning pins 20 on one of the shell bodies 19 are inserted into the positioning grooves 10 in the other shell body 19 for mutual positioning and relative fastening, and then they are fixed into one body by means of bolts or welding. Both sides of the driving gear 12 are installed in the two first positioning holes 22 through the locking shafts 13, and the handle is installed on the holes of the locking shafts 13 and the second positioning holes 21, enabling both sides of the box body 8 to be assembled with the handle, making its adaptability better. The two sides of the first transmission rod 7 and the second transmission rod 18 are respectively embedded in the sliding card slots 2, which can make the sliding tracks of the first transmission rod 7 and the second transmission rod 18 more accurate. And there is a certain gap between the bottoms of the first transmission rod 7 and the second transmission rod 18 and the inner bottom of the sliding seat 5, making the sliding friction of the first transmission rod 7 and the second transmission rod 18 smaller and the sliding more flexible. The clamping component 15 adopts a conventional clamping piece and screw structure, and the accessories have stronger versatility.

[0029] Further improvement is made as follows: there are two insertion pins 24 provided on the inner side of the clamping block 23, there are two third positioning holes 9 on the box body 8 that cooperate with the insertion pins 24, and there are also two inwardly protruding limiting grooves 4 provided on the inner side of the shell body 19. There is an upwardly protruding rubber clamping ring 3 between the two limiting grooves 4, and the inserted insertion pins 24 are pressed and fixed by the rubber clamping ring 3.

[0030] Currently, the installation of the clamping block 23 generally adopts screwing with screws or interference fit to lock it. The operation is troublesome during installation, especially the disassembly is more difficult, and it is also impossible to install at any position on both sides. Therefore, the clamping block and the fixing method are improved. Among them, the clamping block 23 can be detachably installed on either side of the shell body 19 through the insertion pins 24, with higher installation flexibility. The whole disassembly and assembly are simple and convenient. And during the installation process, when the insertion pins 24 are inserted into the third positioning holes 9, one side of the insertion pins 24 contacts the rubber clamping ring 3, and the rubber clamping ring 3 can push out the insertion pins 24 to achieve relative locking, thus solving the problem that the insertion pins 24 cannot be fixed after insertion and avoiding the phenomenon that the clamping block 23 falls off during installation. The insertion pins 24 are positioned by the rubber clamping ring 3. Through the elastic performance of the rubber clamping ring 3, it can not only ensure fixation after insertion but also facilitate its disassembly, effectively solving the problems of inflexible installation and troublesome operation of the existing clamping block 23. Among them, the rubber clamping ring 3 can be installed on either side of the third positioning hole 9 through the two relatively clamped limiting grooves 4, and it is preferably installed directly below the third positioning hole 9, with a larger installation space.

[0031] Further improved, the locking assembly 6 includes a locking pin 17 and a stop block 16 respectively provided at the bottoms of the first transmission rod 7 and the second transmission rod 18.

[0032] The locking pins 17 and the stop blocks 16 at both ends slide through the first transmission rod 7 and the second transmission rod 18 respectively. Among them, the locking pin 17 is used to connect and fix one end of the transmission parts on the upper and lower sides of the window sash. When the locking structure between the window frame and the window sash needs to be locked and opened, linkage control can be achieved. The stop block 16 can quickly position the installation position of one end of the connected transmission rod to avoid the problem of asymmetry of the transmission parts connected at both ends.

[0033] The above embodiments are only the preferred embodiments of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantive changes and substitutions made by those skilled in the art based on the present application belong to the scope of protection required by the present application.

Claims

1. A two-way drive lock box adapted to an extremely narrow frame profile, comprising a sliding seat (5), a box body (8) provided in the middle of the sliding seat (5), a transmission assembly (11) slidably provided in the box body (8), a first transmission rod (7) and a second transmission rod (18) slidably arranged on the box body (8), and a locking assembly (6) provided on the first transmission rod (7) and the second transmission rod (18). The first transmission rod (7) and the second transmission rod (18) slide synchronously and in opposite directions along the sliding seat (5) through the transmission assembly (11), and is characterized in that: The transmission assembly (11) includes a lock shaft (13) penetrating through the box body (8), a driving gear (12) provided on the lock shaft (13), a first rack (1) provided at one end of the first transmission rod (7), and a second rack (14) provided at one end of the second transmission rod (18). The first rack (1) and the first rack (1) are respectively engaged on the upper and lower sides of the driving gear (12), and the first rack (1) is located in the groove of the sliding seat (5).

2. The two-way drive lock box adapted to an extremely narrow border profile according to claim 1, characterized in that: The first rack (1) is horizontally arranged and integrally formed with the first transmission rod (7). The second transmission rod (18) has an L-shaped structure and forms a Z-shaped structure after being integrally formed with the second rack (14). The tooth grooves of the first rack (1) and the second rack (14) are both recessed inwardly.

3. The two-way drive lock box adapted to an extremely narrow frame profile according to claim 2, wherein: A clamping block (23) is further provided on one side of the box body (8).

4. The two-way drive lock box adapted to an extremely narrow border profile according to claim 3, wherein: The box body (8) includes two housing bodies (19), clamping components (15) provided on both sides of the housing bodies (19), a first positioning hole (22), a second positioning hole (21), a plurality of positioning grooves (10) and positioning pins (20) provided on the housing bodies (19). A sliding card slot (2) is provided at the bottom of the box body (8). The two sides of the first transmission rod (7) and the second transmission rod (18) are arranged in the sliding card slot (2). The two housing bodies (19) are fastened and fixed to each other. Both sides of the driving gear (12) are installed in the two first positioning holes (22) through the lock shaft (13). One end of the positioning pin (20) in the housing body (19) is inserted into the positioning groove (10) of the other housing body (19).

5. A two-way drive lock box adapted to an extremely narrow frame profile according to claim 4, characterized in that: Two insertion pins (24) are provided on the inner side of the clamping block (23). Two third positioning holes (9) cooperating with the insertion pins (24) are provided on the box body (8). Two inwardly protruding limiting grooves (4) are further provided on the inner side of the housing body (19). A rubber clamping ring (3) protruding upward is provided between the two limiting grooves (4). The inserted insertion pins (24) are pressed and fixed through the rubber clamping ring (3).

6. The two-way drive lock box adapted to an extremely narrow border profile according to claim 1, wherein: The locking assembly (6) includes a lock pin (17) and a stop block (16) respectively provided at the bottom of the first transmission rod (7) and the second transmission rod (18).

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