Two-way transmission box for heaven and earth insertion

Abstract

A heaven and earth plug bidirectional transmission box comprises a box body, and a transmission cavity and an extending hole communicated with the transmission cavity are formed in the box body. A push rod corresponding to the extending hole and a rotating shaft sleeve used for being in linkage with the push rod are arranged in the transmission cavity, the push rod is in matched transmission with the rotating shaft sleeve through a swing rod, one end of the swing rod is hinged to the rotating shaft sleeve, and the other end of the swing rod is hinged to the push rod. A fixed seat used for limiting the locking state of the push rod is fixedly arranged in the transmission cavity, a fixed locking point is arranged on the fixed seat, and a swing locking point capable of moving along with rotation of the rotating shaft sleeve is arranged on the swing rod. When the swing locking point and the fixed locking point are in tight lap joint in the process that the rotating shaft sleeve rotates in the locking direction, the rotating shaft sleeve cannot continuously rotate, so that the push rod is kept fixed, external force is effectively transmitted to the box body through the fixing base, the phenomenon that the handle is automatically twisted due to the fact that the connecting rod slides downwards is effectively prevented, and the service life of the handle is prolonged. And safer, more stable and more attractive door and window use experience is provided for users.

Description

Technical Field

[0001] This utility model relates to the technical field of lock transmission boxes, specifically to a two-way transmission box with a top and bottom locking mechanism. Background Technology

[0002] In modern architectural design, doors and windows tend to be tall and simple. This design style not only enhances the aesthetics of buildings but also places higher demands on the functionality and security of doors and windows. Especially in excessively tall door and window systems, the use of top and bottom bolt locks has gradually become an effective solution to ensure the safe and stable locking of door panels.

[0003] The transmission box for a top and bottom lock disclosed in patent number CN201510552227.1 includes a box body, a jack with a square rod insertion hole, upper and lower parallel connecting rods, and a connecting rod spring connecting the upper and lower connecting rods. The transmission box, through the rotation of the jack, pushes the upper and lower connecting rods to retract simultaneously outwards or inwards, thereby causing the top and bottom locks to extend or retract, achieving the locking and unlocking functions of doors and windows.

[0004] In this technical solution, when the door and window are locked, the connecting rod extends and drives the insert rod to insert into the lock groove of the corresponding lock seat to lock the door and window. However, this extended state is maintained only by the elastic force of the connecting rod spring. When the door and window are subjected to a large downward force, if this force is greater than the elastic force of the spring, the upper connecting rod may slide down automatically, causing the handle to twist on its own and the handle to not be vertical. This not only affects the overall aesthetics of the door and window, but more importantly, it cannot ensure that the door leaf is successfully locked, thereby reducing the security of the door and window. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a bidirectional transmission box with a top and bottom plug.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A bidirectional transmission box with a top and bottom joint includes a box body, the box body having a transmission cavity and an extension hole communicating with the transmission cavity; the transmission cavity having a push rod corresponding to the extension hole and a rotating sleeve for linking the push rod, the rotating sleeve being rotatably connected to the box body, characterized in that:

[0008] The push rod is driven by a swing arm and a rotating shaft sleeve. One end of the swing arm is hinged to the rotating shaft sleeve, and the other end is hinged to the push rod. A fixed seat is fixed inside the transmission cavity to limit the locked state of the push rod. The fixed seat has a fixed locking point. The swing arm has a swing locking point that can move with the rotation of the rotating shaft sleeve. The movement trajectory of the swing arm pushing the push rod to perform the locking action is configured such that it first extends outward and then retracts inward as the rotating shaft sleeve rotates in the locking direction until the swing locking point is blocked by the fixed locking point.

[0009] The swing locking point is configured to overlap and fit onto the fixed locking point by the pressure generated when the swing arm retracts inward after being blocked by the fixed locking point, thereby restricting the rotation of the rotating shaft sleeve.

[0010] In this utility model, the push rod includes a push rod linkage part and a transmission arm disposed on one end of the push rod linkage part. The other end of the push rod linkage part extends out of the box body through the extension hole, and the transmission arm is used to hinge with the other end of the swing rod.

[0011] In this utility model, a pivot hinge portion protrudes from the outer circumferential surface of the pivot sleeve, a transmission hinge portion is provided on the transmission arm, the swing arm includes a swing arm body and a first hinge portion and a second hinge portion respectively provided at both ends of the swing arm body, the swing locking point is provided on the swing arm body and close to the second hinge portion, the first hinge portion is hinged to the pivot hinge portion to form a first hinge point, and the second hinge portion is hinged to the transmission hinge portion to form a second hinge point.

[0012] In this utility model, the first hinge part is provided with a first hinge hole, and the rotating shaft hinge part is provided with a rotating shaft hinge hole that is axially corresponding to the first hinge hole. The rotating shaft hinge hole and the first hinge hole that are axially corresponding to each other are used to install the first rotating shaft.

[0013] In this utility model, the first hinge part is provided with a first hinge groove, and the rotating shaft hinge part is inserted into the first hinge groove so that the rotating shaft hinge hole corresponds to the first hinge hole on the same rotating shaft hinge part.

[0014] In this utility model, the second hinge part is provided with a second hinge hole, and the transmission hinge part is provided with a rotating shaft hinge hole that is axially corresponding to the second hinge hole. The rotating shaft hinge hole and the second hinge hole that are axially corresponding to each other are both equipped with a second rotating shaft.

[0015] In this utility model, the second hinge part is provided with a second hinge groove, and the transmission hinge part is inserted into the second hinge groove so that the pivot hinge hole corresponds to the second hinge hole on the same transmission hinge part.

[0016] In this utility model, the box body includes a first shell and a second shell assembled together. The outer sides of the first shell and the second shell are provided with pivot holes. The pivot sleeve has pivot portions protruding at both axial ends. The pivot portions at both axial ends of the pivot sleeve are rotatably installed in the pivot holes of the first shell and the second shell, respectively.

[0017] The first housing and the second housing each have a housing space on their inner sides, and the housing spaces of the first housing and the second housing constitute the transmission cavity;

[0018] Both the first housing and the second housing are provided with protruding half-openings, and two corresponding protruding half-openings form a protruding hole.

[0019] In this utility model, the push rod and the box body are guided by a telescopic guide structure. The telescopic guide structure includes a guide protrusion and a guide groove. The guide protrusion is provided on the box body, and the guide groove is provided on the push rod. Each guide groove is slidably adapted to at least one guide protrusion.

[0020] In this utility model, at least one guide groove is provided on each of the opposite sides of the push rod linkage part, and the guide protrusion is raised on the shell space wall of the first shell and the second shell.

[0021] The beneficial effects of this utility model are as follows: This utility model realizes the transmission between the rotating shaft sleeve and the push rod through the swing rod. The fixed base of the housing is provided with a fixed locking point, and the swing rod is provided with a swing locking point. When the rotating shaft sleeve rotates in the locking direction and the swing locking point is tightly engaged with the fixed locking point, the rotating shaft sleeve cannot continue to rotate, so that the push rod remains fixed and effectively transmits the external force to the housing through the fixed base, and then to the window sash profile through the fixing screw. This enhances the load-bearing capacity of the transmission box and effectively avoids the problem of the connecting rod automatically sliding down due to excessive gravity. It also prevents the handle from twisting on its own due to the sliding down of the connecting rod. This ensures that the handle always maintains a vertical position and ensures successful locking of the door sash, providing users with a safer, more stable and aesthetically pleasing door and window experience. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0023] Figure 1 A perspective view of the bidirectional transmission box after the second housing has been removed;

[0024] Figure 2 This is an exploded view of the bidirectional transmission box;

[0025] Figure 3 This is a schematic diagram of the bidirectional transmission box in its initial state.

[0026] Figure 4 This is a schematic diagram of the rotating bushing rotating in the locking direction.

[0027] Figure 5 A schematic diagram showing the alignment of two first hinge points and two second hinge points on the same trajectory line;

[0028] Figure 6 A schematic diagram showing the overlapping and fitting of the swing locking point to the fixed locking point;

[0029] Figure 7 This is a schematic diagram showing the rotation direction of the rotating bushing when the bidirectional transmission box returns to its initial state. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0031] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0033] Reference Figure 1-7 A bidirectional transmission box with a top and bottom joint includes a box body, on which a transmission cavity and two protruding holes respectively connecting the two ends of the transmission cavity are provided; the transmission cavity is provided with two push rods 1 corresponding to the two protruding holes respectively and a rotating sleeve 2 located between the two push rods 1 and having a transmission insertion hole 21. The rotating sleeve 2 is used to link the push rods 1. The rotating sleeve 2 is rotatably connected to the box body, and the handle square shaft is inserted into the transmission insertion hole 21; in other embodiments, only one push rod 1 may be provided, with each protruding hole corresponding to at least one push rod 1, and one push rod 1 can be used to lock one end of the window sash.

[0034] Furthermore, each push rod 1 is driven by a swing rod 3 in conjunction with the rotating sleeve 2. One end of the swing rod 3 is hinged to the rotating sleeve 2, and the other end is hinged to the push rod 1. Two fixed seats 4 are fixed inside the transmission cavity to limit the locked state of the push rod 1. Each fixed seat 4 corresponds to one push rod 1, and both fixed seats 4 are provided with fixed locking points 41. The swing rod 3 is provided with swing locking points 31 that can move with the rotation of the rotating sleeve 2. Each swing locking point 31 corresponds to a fixed locking point 41 of a fixed seat 4. The locking and unlocking actions of the bidirectional transmission box are both achieved by manually controlling the rotation of the rotating sleeve 2. When the swing rod 3 pushes the push rod 1 to perform the locking action, its trajectory is configured such that as the rotating sleeve 2 rotates in the locking direction, it first extends outward and then retracts inward until the swing locking point 31 is blocked by the fixed locking point 41. The swing locking point 31 is configured to overlap and adhere to the fixed locking point 41 after being blocked by the fixed locking point 41, thus restricting the rotation of the rotating sleeve 2. Furthermore, when the swing rod 3, in conjunction with the push rod 1, performs the unlocking action, its trajectory is configured such that as the rotating sleeve 2 rotates in the unlocking direction, it first extends outward and then retracts inward until the rotating sleeve 2 can no longer rotate in the unlocking direction. The inability of the rotating sleeve 2 to continue rotating in the unlocking direction can be achieved by the limiting effect formed by the middle part of the swing rod 3 abutting against the rotating sleeve 2; that is, when the middle part of the swing rod 3 abuts against the rotating sleeve 2, the rotating sleeve 2 cannot continue to rotate in the unlocking direction.

[0035] In a preferred embodiment, the push rod 1 includes a push rod linkage part 11, a transmission arm 12 and an auxiliary arm 13 disposed on one end of the push rod linkage part 11. One end of the push rod linkage part 11, the transmission arm 12 and the auxiliary arm 13 form a U-shaped structure. The other end of the push rod linkage part 11 extends out of the box body through the extension hole, so that the push rod linkage part 11 can be connected to the locking rod outside the box body to realize transmission. The transmission arm 12 is used to hinge with the other end of the swing arm.

[0036] In a preferred embodiment, the outer circumferential surface of the rotating shaft sleeve 2 has two rotating shaft hinge portions 22 protruding and distributed along the outer circumference of the rotating shaft sleeve 2. The transmission arm 12 is provided with a transmission hinge portion 121. The swing rod 3 includes a swing rod body 32 and a first hinge portion 33 and a second hinge portion 34 respectively provided at both ends of the swing rod body 32. The swing locking point 31 is provided on the swing rod body 32 and close to the second hinge portion 34. The first hinge portion 33 is hinged to the rotating shaft hinge portion 22 to form a first hinge point, and the second hinge portion 34 is hinged to the transmission hinge portion 121 to form a second hinge point.

[0037] In this embodiment, the first hinge portion 33 is provided with a first hinge hole, and the rotating shaft hinge portion 22 is provided with a rotating shaft hinge hole that corresponds axially to the first hinge hole. A first rotating shaft is installed in both the axially corresponding rotating shaft hinge hole and the first hinge hole, so that the first hinge portion 33 and the rotating shaft hinge portion 22 are hinged together. Furthermore, the first hinge portion 33 is provided with a first hinge groove. Each first hinge portion 33 has two first hinge holes that connect both sides of the first hinge groove. The rotating shaft hinge portion 22 is inserted into the first hinge groove, with the rotating shaft hinge hole corresponding to the two first hinge holes on the same rotating shaft hinge portion 22. By providing the first hinge groove, the first hinge portion 33 and the rotating shaft hinge portion 22 can be mutually constrained and positioned, ensuring the quality of the hinge installation.

[0038] In this embodiment, the second hinge portion 34 is provided with a second hinge hole, and the transmission hinge portion 121 is provided with a rotating shaft hinge hole that corresponds axially to the second hinge hole. A second rotating shaft is installed in both the axially corresponding rotating shaft hinge hole and the second hinge hole, so that the second hinge portion 34 and the transmission hinge portion 121 are hinged together. Furthermore, the second hinge portion 34 is provided with a second hinge groove. Each second hinge portion 34 has two second hinge holes that connect to both sides of the second hinge groove. The transmission hinge portion 121 is inserted into the second hinge groove, with the rotating shaft hinge hole corresponding to the two second hinge holes on the same transmission hinge portion 121. By providing the second hinge groove, the second hinge portion 34 and the transmission hinge portion 121 can be mutually constrained and positioned, ensuring the quality of the hinge installation.

[0039] In a preferred embodiment, the housing includes a first housing 5 and a second housing 6 assembled together by bolts. Both the first housing 5 and the second housing 6 have pivot holes 561 on their outer sides. The pivot sleeve 2 has pivot portions 23 protruding from both axial ends. The pivot portions 23 at both axial ends of the pivot sleeve 2 are rotatably installed in the pivot holes 561 of the first housing 5 and the second housing 6, thereby completing the rotational installation of the pivot sleeve 2. Both the first housing 5 and the second housing 6 have housing spaces 562 on their inner sides, which together form the transmission cavity. Both ends of the first housing 5 and the second housing 6 have protruding half-openings 563, and two corresponding protruding half-openings 563 form an protrusion hole.

[0040] In this embodiment, both mounting bases 4 protrude from the wall of the housing space 562 of the first housing 5, and the mounting bases 4 are provided with screw holes. The second housing 6 is provided with two screw through holes 61, which correspond to the screw holes of the two mounting bases 4 respectively. The mounting bases 4 are used to cooperate with fixing screws to install the transmission box on the window sash.

[0041] In this embodiment, the first housing 5 has a plurality of mounting protrusions 51 protruding on the wall surface of the housing space 562, and the mounting protrusions 51 are provided with mounting holes. The second housing 6 is provided with a plurality of connecting holes 62 corresponding to each mounting protrusion 51. The screw of the housing bolt passes through the connecting hole 62 and is threaded into the mounting hole, so that the first housing 5 and the second housing 6 are assembled together.

[0042] In a preferred embodiment, in order to ensure the action quality of the push rod 1, the push rod 1 and the box body are guided by a telescopic guide structure. The telescopic guide structure includes a guide protrusion 7 and a guide groove 8. The guide protrusion 7 is provided on the box body, and the guide groove 8 is provided on the push rod 1. Each guide groove 8 is slidably adapted to at least one guide protrusion 7.

[0043] In this embodiment, at least one guide groove 8 is provided on each of the opposite sides of the push rod linkage part 11, and the guide protrusion 7 is raised on the wall surface of the housing space 562 of the first housing 5 and the second housing 6, so that the two sides of the push rod 1 are respectively guided and connected to the first housing 5 and the second housing 6 of the box. In addition, the guide protrusion 7 extends to the protruding half opening 563, thereby extending the guiding distance and ensuring the stability of the push rod 1's movement.

[0044] like Figure 3 As shown, when the transmission box is in its initial state, both push rods 1 are in the unlocked state. The first and second hinge points of the same swing rod 3 are located on the same side of the preset center line 200. The preset center line 200 overlaps with the center of the rotating sleeve 2, and the direction of the preset center line 200 is parallel to the direction of movement of the push rod 1. Figure 4 As shown, when the user rotates the rotating sleeve 2 along the locking direction using the handle, the two rocker arms 3 hinged to the rotating sleeve 2 will rotate outward around the rotating sleeve 2 as the center point; while the two push rods 1, which are respectively hinged to the two rocker arms 3, are constrained by the telescopic guide structure, and the two push rods 1 extend outward respectively; as Figure 5 As shown, when the rotating sleeve 2 and the rocker arm 3 rotate, and both the two first hinge points and the two second hinge points are on a trajectory alignment line 100, the push rod 1 extends outward to its longest position; as Figure 6As shown, when the rotating sleeve 2 continues to rotate so that the first and second hinge points corresponding to the same swing rod 3 are located on both sides of the preset center line 200, the swing locking point 31 is forced to retract inward and drive the two push rods 1 to retract. When the swing locking point 31 overlaps and presses tightly with the fixed locking point 41, the rotating sleeve 2 can no longer rotate, the push rod 1 remains stationary, and the external force it receives will be transmitted to the box body through the fixed seat 4, and then to the window sash profile through the fixing screw, making its load-bearing capacity better. This effectively solves the problem of not affecting the verticality of the handle and ensuring accurate locking when the door and window load is too high. When the user uses the handle to drive the rotating sleeve 2 to rotate along the unlocking direction, the transmission box can rotate back to the initial state, and the first and second hinge points corresponding to the same swing rod 3 are both located on the same side of the preset center line 200. Figure 7 As shown.

[0045] The above description is only a preferred embodiment of the present utility model. Any technical solution that achieves the purpose of the present utility model by essentially the same means shall fall within the protection scope of the present utility model.

Claims

1. A bidirectional transmission box with a top and bottom joint, comprising a box body, wherein the box body is provided with a transmission cavity and an extension hole communicating with the transmission cavity; wherein the transmission cavity is provided with a push rod (1) corresponding to the extension hole and a rotating bushing (2) for linking the push rod (1), wherein the rotating bushing (2) is rotatably connected to the box body, characterized in that: The push rod (1) is driven by the swing rod (3) in conjunction with the rotating sleeve (2). One end of the swing rod (3) is hinged to the rotating sleeve (2), and the other end is hinged to the push rod (1). A fixed seat (4) for limiting the locked state of the push rod (1) is fixed in the transmission cavity. The fixed seat (4) is provided with a fixed locking point (41). The swing rod (3) is provided with a swing locking point (31) that can move with the rotation of the rotating sleeve (2). The movement trajectory of the swing rod (3) pushing the push rod (1) to perform the locking action is configured such that as the rotating sleeve (2) rotates in the locking direction, it first extends outward and then retracts inward until the swing locking point (31) is blocked by the fixed locking point (41). The swing locking point (31) is configured to overlap and adhere to the fixed locking point (41) by the pressure generated when the swing rod (3) retracts inward after being blocked by the fixed locking point (41), thereby restricting the rotation of the rotating shaft sleeve (2).

2. The bidirectional transmission box with a top and bottom joint according to claim 1, characterized in that: The push rod (1) includes a push rod linkage part (11) and a transmission arm (12) provided on one end of the push rod linkage part (11). The other end of the push rod linkage part (11) extends out of the box body through the extension hole. The transmission arm (12) is used to hinge with the other end of the swing rod (3).

3. The bidirectional transmission box with a top and bottom joint according to claim 2, characterized in that: The outer circumferential surface of the rotating shaft sleeve (2) has a rotating shaft hinge part (22) protruding, the transmission arm (12) is provided with a transmission hinge part (121), the swing rod (3) includes a swing rod body (32) and a first hinge part (33) and a second hinge part (34) respectively provided at both ends of the swing rod body (32), the swing locking point (31) is provided on the swing rod body (32) and close to the second hinge part (34), the first hinge part (33) is hinged on the rotating shaft hinge part (22) to form a first hinge point, and the second hinge part (34) is hinged on the transmission hinge part (121) to form a second hinge point.

4. The bidirectional transmission box with a top and bottom joint according to claim 3, characterized in that: The first hinge part (33) is provided with a first hinge hole, and the rotating shaft hinge part (22) is provided with a rotating shaft hinge hole that is axially corresponding to the first hinge hole. The rotating shaft hinge hole and the first hinge hole that are axially corresponding to each other are both equipped with a first rotating shaft.

5. A bidirectional transmission box with a top and bottom joint according to claim 4, characterized in that: The first hinge part (33) is provided with a first hinge groove, and the rotating shaft hinge part (22) is inserted into the first hinge groove and the rotating shaft hinge hole corresponds to the first hinge hole on the same rotating shaft hinge part (22).

6. A bidirectional transmission box with a top and bottom joint according to claim 3, characterized in that: The second hinge part (34) is provided with a second hinge hole, and the transmission hinge part (121) is provided with a rotating shaft hinge hole that is axially corresponding to the second hinge hole. The rotating shaft hinge hole and the second hinge hole that are axially corresponding to each other are both equipped with a second rotating shaft.

7. A bidirectional transmission box with a top and bottom joint according to claim 6, characterized in that: The second hinge part (34) is provided with a second hinge groove, and the transmission hinge part (121) is inserted into the second hinge groove and the pivot hinge hole corresponds to the second hinge hole on the same transmission hinge part (121).

8. A bidirectional transmission box with a top and bottom joint according to claim 1, characterized in that: The box body includes a first shell (5) and a second shell (6) assembled together. The outer sides of the first shell (5) and the second shell (6) are provided with pivot holes (561). The pivot sleeve (2) has pivot parts (23) protruding at both axial ends. The pivot parts (23) at both axial ends of the pivot sleeve (2) are rotatably installed in the pivot holes (561) of the first shell (5) and the second shell (6). The first housing (5) and the second housing (6) are each provided with a housing space (562) on their inner sides, and the housing space (562) of the first housing (5) and the second housing (6) constitutes the transmission cavity; The first housing (5) and the second housing (6) are both provided with protruding half openings (563), and two corresponding protruding half openings (563) form a protruding hole.

9. A bidirectional transmission box with a top and bottom joint according to any one of claims 1-8, characterized in that: The push rod (1) and the box body are guided by a telescopic guide structure. The telescopic guide structure includes a guide protrusion (7) and a guide groove (8). The guide protrusion (7) is located on the box body, and the guide groove (8) is located on the push rod (1). Each guide groove (8) is slidably adapted to at least one guide protrusion (7).

10. A bidirectional transmission box with a top and bottom joint according to claim 9, characterized in that: At least one guide groove (8) is provided on each of the opposite sides of the push rod linkage part (11), and the guide protrusion (7) is raised on the wall surface of the housing space (562) of the first housing (5) and the second housing (6).

Images