Transmission lock box with self-locking function

Abstract

The transmission lock box with the self-locking function comprises a base, a transmission strip, a shifting block, a self-locking piece, a plurality of first springs and a transmission box, the transmission strip is connected to the base in a sliding mode, and a transmission shell is formed on the transmission strip; the lock box is provided with a base, a transmission strip, a shifting block, a self-locking piece, a plurality of first springs and a transmission box, the transmission strip slides on the base, then a transmission shell is formed on the transmission strip, the self-locking piece is arranged in the transmission shell, the first springs and the multi-head first springs upwards abut against and abut against the self-locking piece, a shifting part abuts against and abuts against the self-locking piece, and the transmission strip slides on the transmission box. And the transmission handle is connected with the shifting block, so that when the transmission handle is at 0 degree and 90 degrees, the first spring is utilized to abut against and press the self-locking piece, the self-locking piece continuously pushes the shifting part upwards, movement of the shifting part is limited, the self-locking function is achieved, and the overall structure is practical and reliable.

Description

A transmission lock box with self-locking function Technical Field

[0001] This utility model relates to the field of hardware door and window technology, and in particular to a transmission lock box with self-locking function. Background Technology

[0002] The transmission lock box is an important component of the door and window transmission mechanism. It is used to connect the handle and the linkage. By operating the handle, the linear movement of the linkage is realized through the connected transmission device, thereby achieving the locking and opening functions of the door and window. Therefore, the transmission device is widely used in modern buildings.

[0003] Most transmission lock boxes on the market lack a self-locking function. This can lead to installation errors, requiring technicians to reinstall, thus reducing efficiency. Furthermore, transmission lock boxes with a self-locking function offer a superior user experience, providing a damped feel during transmission, a difference from ordinary transmission lock boxes. Announcement number CN111852194B discloses an adjustable transmission lock box structure, including a gear box, a transmission rod, and a connecting block. The transmission rod is slidably mounted on the gear box, with receiving cavities at both ends and adjustment holes on its left and right outer sides. The connecting block is embedded in the receiving cavity and can slide along the length of the transmission rod. A locking point is located on the bottom of the connecting block, which is equipped with an adjustment screw that corresponds to the adjustment hole and threadedly engages with the connecting block, allowing the locking point to move along the length of the transmission rod. However, this lock box lacks a self-locking function, making it impractical. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a practical, reliable and easy-to-operate transmission lock box with self-locking function.

[0005] To achieve the above objectives, the present invention provides the following solution: a transmission lock box with a self-locking function, comprising a base, a transmission bar, a toggle block, a self-locking component, multiple first springs, and a transmission box. The transmission bar is slidably connected to the base, and a transmission housing is formed on the transmission bar. The self-locking component and multiple first springs are disposed inside the transmission housing, with each of the first springs pressing against the self-locking component upwards. The transmission box is disposed on the transmission bar to enclose the transmission housing. The toggle block is rotatably connected inside the transmission box, and a toggle part is formed at the end of the toggle block. The toggle part presses against the self-locking component. By rotating the toggle block, the self-locking component can be moved up and down, and the transmission bar can slide back and forth.

[0006] The beneficial effects of this utility model are as follows: It has a self-locking function. The lock box is composed of a base, a transmission bar, a toggle block, a self-locking component, multiple first springs, and a transmission box. The transmission bar slides on the base. A transmission housing is formed on the transmission bar, and a self-locking component and multiple first springs are set inside the transmission housing. The multiple first springs abut against and press the self-locking component upwards, and the toggle part abuts against and presses against the self-locking component. The transmission handle is connected to the toggle block. In this way, when the transmission handle is at 0° and 90°, the first springs abut against and press against the self-locking component, so that the self-locking component continuously pushes the toggle part upwards, restricting the movement of the toggle part and realizing the self-locking function. The overall structure is practical and reliable.

[0007] Furthermore, the base has a sliding groove, and the transmission bar slides within the sliding groove.

[0008] Furthermore, the transmission bar has two limiting grooves, which are spaced apart from each other and extend along the length of the transmission bar. The bottom of the base has two mounting screws, which pass through the two limiting grooves one to one. Each mounting screw is connected to a screw plate, which is located above the transmission bar. A second spring is fitted on the mounting screw.

[0009] Furthermore, fixed posts are formed at both ends of the transmission bar. With the above structure, this utility model is connected to the aluminum connecting rod.

[0010] Furthermore, end caps are provided at both the front and rear ends of the base, and these end caps are used to seal the ends of the sliding groove. With the above structure, this invention prevents the transmission bar from sliding out of the sliding groove.

[0011] Furthermore, the top of the transmission housing is formed with an installation chamber, and the self-locking component is disposed in the installation chamber. The bottom of the installation chamber is formed with multiple installation posts, and each installation post is fitted with the first spring.

[0012] Furthermore, the bottom of the self-locking component has multiple mounting slots, and the multiple first springs are inserted one-to-one into the multiple mounting slots. With the above structure, this utility model effectively reduces noise during transmission by providing mounting slots to accommodate the first springs.

[0013] Furthermore, the top of the self-locking component is formed with a groove, and the end of the actuating part is disposed in the groove.

[0014] Furthermore, the inner side wall of the mounting cavity is provided with a toggle groove, the toggle groove extends vertically, and the toggle part is formed with a transmission column, the transmission column slides within the toggle groove.

[0015] Furthermore, the transmission box includes a front cover and a rear cover, which are connected to each other to form the transmission box. The front cover and the rear cover together enclose the transmission housing. The front cover and the rear cover are each provided with a rotating hole, and the two rotating holes are rotatably connected to the actuating block.

[0016] Furthermore, multiple connecting blocks are formed on opposite sides of the front cover and the rear cover, and the rear cover has multiple connecting holes. The multiple connecting blocks are inserted into the multiple connecting holes one by one to achieve a snap-fit ​​connection between the front cover and the rear cover.

[0017] Furthermore, the front cover has a positioning groove that extends along the length of the front cover, and the outer wall of the transmission housing has a positioning block formed therein, which slides within the positioning groove.

[0018] Furthermore, the rear cover and the front cover have two mounting holes on opposite sides, and a connector is provided in the mounting holes.

[0019] Furthermore, the mounting hole has a first through hole penetrating the rear cover, and the front cover has a second through hole penetrating the front cover laterally. The first through hole and the second through hole are opposite to each other. The connector is formed with a first connecting part and a second connecting part, and the first connecting part and the second connecting part pass through the first through hole and the second through hole in sequence.

[0020] Furthermore, two damping grooves are formed on opposite sides of the front and rear covers, and a damping element is provided in each damping groove. The damping element abuts against and presses against the first connecting part. By adopting the above structure and providing damping elements, this utility model makes it less likely for the connecting part to detach.

[0021] Furthermore, self-locking bosses are formed on the left and right sides of the top of the self-locking component, and two self-locking posts are formed on the opposite sides of the front cover and the rear cover. The two self-locking posts are arranged at intervals, and the self-locking bosses and self-locking posts interlock with each other to restrict the movement of the transmission bar. With the above structure, this utility model achieves the self-locking function by interlocking the self-locking bosses and self-locking posts. Attached Figure Description

[0022] Figure 1 is a three-dimensional view of the overall structure of this utility model.

[0023] Figure 2 is an exploded view of this utility model.

[0024] Figure 3 is a diagram of the internal structure of this utility model.

[0025] Figure 4 shows the connection between the transmission bar and the actuating block of this utility model.

[0026] Figure 5 is a perspective view of the transmission bar of this utility model.

[0027] Figure 6 is a structural diagram of the internal structure of the self-locking component of this utility model.

[0028] Figure 7 is a perspective view of the toggle block of this utility model.

[0029] Figure 8 is a partial internal structure diagram of this utility model (the transmission handle is in the 0° state).

[0030] Figure 9 is a partial internal structure diagram of this utility model (rotation state of the transmission handle and the actuating block).

[0031] Figure 10 is a partial internal structure diagram of this utility model (the transmission handle is in a 90° position).

[0032] Figure 11 is a perspective view of the installation and assembly of the fan profile and transmission handle of this utility model.

[0033] Figure 12 is a top view of the installation and assembly of the fan profile and transmission handle of this utility model.

[0034] Figure 13 is a diagram showing the internal structure of the assembly of the fan profile and transmission handle of this utility model.

[0035] Wherein, 1 is the base, 11 is the sliding groove, 12 is the end cap, 13 is the mounting screw, 131 is the second spring, 14 is the screw plate, 2 is the transmission bar, 21 is the transmission housing, 211 is the mounting chamber, 212 is the actuating groove, 213 is the positioning block, 214 is the mounting post, 22 is the limiting groove, 23 is the self-locking component, 231 is the mounting groove, 232 is the recess, 233 is the self-locking boss, 24 is the first spring, 25 is the fixing post, 31 is the front cover, 311 is the second through hole, 312 is... Damping groove, 313 is damping component, 314 is positioning groove, 315 is self-locking post, 316 is connecting block, 32 is back cover, 321 is mounting hole, 322 is first through hole, 323 is connecting hole, 33 is connecting component, 331 is first connecting part, 332 is second connecting part, 34 is actuating block, 341 is actuating part, 342 is transmission post, 343 is square hole, 35 is rotating hole, 4 is fan profile, 5 is transmission handle, 51 is square post, 52 is fixing screw, 6 is aluminum connecting rod. Detailed Implementation

[0036] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] Referring to Figures 1 to 13, a transmission lock box with a self-locking function includes a base 1, a transmission bar 2, a lever block 34, a self-locking component 23, multiple first springs 24, and a transmission box. The transmission bar 2 is slidably connected to the base 1. A transmission housing 21 is formed on the transmission bar 2. The self-locking component 23 and multiple first springs 24 are disposed inside the transmission housing 21. The multiple first springs 24 respectively abut against and press against the self-locking component 23. The transmission box is disposed on the transmission bar 2 to enclose the transmission housing 21. The lever block 34 is rotatably connected inside the transmission box. The end of the lever block 34 is formed with a lever part 341. The lever part 341 abuts against and presses against the self-locking component 23. By rotating the lever block 34, the self-locking component 23 can be pushed up and down and the transmission bar 2 can slide back and forth.

[0039] In this embodiment, a sliding groove 11 is provided on the base 1, and the transmission bar 2 slides within the sliding groove 11.

[0040] In this embodiment, the transmission bar 2 has two limiting grooves 22, which are distributed at intervals. Each limiting groove 22 extends along the length of the transmission bar 2. The bottom of the base 1 is provided with two mounting screws 13, which pass through the two limiting grooves 22 one by one. Each mounting screw 13 is connected to a screw plate 14, which is located above the transmission bar 2. A second spring 131 is fitted on the mounting screw 13.

[0041] In this embodiment, the front and rear ends of the transmission bar 2 are respectively formed with fixed posts 25.

[0042] In this embodiment, end caps 12 are provided at the front and rear ends of the base 1, and the end caps 12 are used to seal the ends of the sliding groove 11.

[0043] In this embodiment, the top of the transmission housing 21 is formed with an installation chamber 211, and a self-locking member 23 is provided in the installation chamber 211. The bottom of the installation chamber 211 is formed with multiple installation posts 214, and each installation post 214 is fitted with a first spring 24. The bottom of the self-locking member 23 has multiple installation slots 231, and the multiple first springs 24 are respectively inserted into the multiple installation slots 231 one by one.

[0044] In this embodiment, the top of the self-locking member 23 is formed with a groove 232, and the end of the actuating part 341 is disposed in the groove 232. The groove 232 has an arc-shaped structure.

[0045] In this embodiment, the inner sidewall of the mounting chamber 211 is provided with a toggle groove 212, which extends vertically, and the toggle part 341 is formed with a transmission column 342, which slides within the toggle groove 212.

[0046] In this embodiment, the transmission box includes a front cover 31 and a rear cover 32. The front cover 31 and the rear cover 32 are connected to each other to form the transmission box. The front cover 31 and the rear cover 32 together enclose the transmission housing 21. The front cover 31 and the rear cover 32 are respectively provided with rotating holes 35. The two rotating holes 35 are rotatably connected to the actuating block 34. Multiple connecting blocks 316 are formed on opposite sides of the front cover 31 and the rear cover 32. The rear cover 32 is provided with multiple connecting holes 323. The multiple connecting blocks 316 are inserted into the multiple connecting holes 323 one by one to realize the snap-fit ​​connection between the front cover 31 and the rear cover 32.

[0047] In this embodiment, the front cover 31 has a positioning groove 314 that extends along the length of the front cover 31, and the outer wall of the transmission housing 21 has a positioning block 213 that slides within the positioning groove 314.

[0048] In this embodiment, the rear cover 32 and the front cover 31 have two mounting holes 321 on opposite sides, and a connector 33 is provided in the mounting holes 321. The mounting holes 321 have a first through hole 322 that penetrates the rear cover 32, and the front cover 31 has a second through hole 311 that penetrates the front cover 31 laterally. The first through hole 322 and the second through hole 311 are opposite to each other. The connector 33 is formed with a first connecting part 321 and a second connecting part 322. The first connecting part 321 and the second connecting part 322 pass through the first through hole 322 and the second through hole 311 in sequence.

[0049] The connector 33 has two sets of threaded holes. One set of threaded holes is located on the first connecting part 321, and the other set of threaded holes is located on the second connecting part 322. Thus, the lock box of this embodiment can be used to connect handles with and without bases through the two sets of threaded holes.

[0050] In this embodiment, two damping grooves 312 are formed on opposite sides of the front cover 31 and the rear cover 32. Each damping groove 312 is provided with a damping element 313, which abuts against and presses against the first connecting part 321.

[0051] In this embodiment, self-locking bosses 233 are formed on the left and right sides of the top of the self-locking component 23, and two self-locking posts 315 are formed on the opposite sides of the front cover 31 and the rear side. The two self-locking posts 315 are arranged at intervals, and the self-locking bosses 233 and the self-locking posts 315 lock each other to restrict the movement of the transmission bar 2.

[0052] In this embodiment, the actuating block 34 has a square hole 343. During assembly, the square shaft 51 of the handle is inserted into the square hole 343.

[0053] The lock box assembly process in this embodiment is as follows:

[0054] S1. Place the damping component 313 into the damping groove 312 of the front cover 31. After applying lubricating oil to the rotating part and mating part of the actuating block 34, place it into the rotating hole 35 of the front cover 31.

[0055] S2. The first springs 24 are respectively mounted on the mounting posts 214. Then, the self-locking member 23 is placed into the mounting chamber 211 of the transmission housing 21, and the mounting post 214 with the first springs 24 is inserted upward into the mounting groove 231 of the self-locking member 23, so that the first springs 24 abut against and press the self-locking member 23 upward.

[0056] S3. Place the transmission bar 2 installed in step S2 into the front cover 31 of step 1. The positioning block 213 of the transmission bar 2 slides into the positioning groove 314 of the front cover 31, and the actuating part 341 of the actuating block 34 enters the groove 232 of the self-locking member 23.

[0057] S4. Join the back cover 32 with the front cover 31 from step 3, so that the multiple connecting blocks 316 are inserted into the multiple connecting holes 323 one by one, and then rivet them securely using a riveting device. After completion, insert the square shaft 51 into the square hole 343 of the actuating block 34 and rotate it to check if it rotates normally. Then insert the multiple connecting parts 33 into the multiple mounting holes 321, and make the first connecting part 321 and the second connecting part 322 of the connecting part 33 pass through the first through hole 322 and the second through hole 311 in sequence.

[0058] S5. Slide the transmission bar 2 from step 4 into the sliding groove 11 of the base 1, and then use riveting equipment and related fixtures to firmly rivet the front cover 31, the rear cover 32 and the base 1.

[0059] S6. Screw the mounting screw 13 upwards into the base 1 and make the mounting screw 13 pass upwards through the limiting groove 22 of the transmission bar 2. Then, put the second spring 131 onto the mounting screw 13, and then connect the screw plate 14 to the mounting screw 13 so that the second spring 131 abuts against the top screw plate 14 to complete the installation of the entire transmission lock box.

[0060] After the lock box is assembled, it can be installed on the fan profile 4. The specific installation process is as follows:

[0061] S1. Insert the aluminum connecting rod 6 into the groove on the side of the window sash where the handle is installed.

[0062] S2. Place the lock box of this embodiment into the groove on the side of the fan profile 4 where the transmission handle 5 is installed, adjust the position of the aluminum connecting rod 6, align the fixing post 25 of the transmission bar 2 on the lock box with the round hole of the aluminum connecting rod 6, and align the two fixing posts 25 with the holes of the two aluminum connecting rods 6 to complete the initial installation.

[0063] S3. Use an Allen wrench to rotate the mounting screw 13, causing the screw piece 14 to rotate until the screw piece 14 is locked in the groove of the fan profile 4, thus completing the fixing of the lock box.

[0064] S4. After passing the square shaft 51 of the transmission handle 5 through the fan profile 4, insert it into the square hole 343 of the toggle block 34 of the lock box. Use the fixing screw 52 of the transmission handle 5 to pull out the connecting piece 33 on the fan profile 4 and the lock box and lock it to complete the installation of the entire transmission system.

[0065] The entire installation process is very convenient and quick. It can be used with or without a base handle. In addition, the structure for fixing the handle is simple and convenient. Just pull out the threaded connector 33 and fit it with the profile.

[0066] When the connector 33 is assembled with the transmission handle 5 by setting the first connecting part 321 and the second connecting part 322, the lock box will not be pulled and deformed on one side.

[0067] The lock box has a damping component 313, which provides a damping effect during the pulling out of the connector 33. When not in use, the damping component 313 locks the connector 33 in place, providing a fixed and non-detachable effect.

[0068] The lock box features a self-locking structure design. The self-locking boss 233 of the self-locking component 23 and the self-locking post 315 of the front cover 31 form a locking effect, preventing the transmission bar 2 from being driven and thus achieving the self-locking function.

[0069] Specifically, when the transmission handle 5 is at 0°, the self-locking boss 233 on the rear side of the self-locking member 23 and the self-locking post 315 on the rear side interlock with each other, so that under normal conditions, it is impossible to push the transmission bar 2 to slide on the base 1 by simply pulling the transmission handle 5 to move it horizontally.

[0070] At this time, the transmission handle 5 needs to be rotated from 0° to 90°. The transmission handle 5 drives the actuating block 34 to swing. The actuating block 34 rotates to drive the actuating part 341 to swing. The actuating part 341 swings downward to push the self-locking member 23 down and compress the first spring 24, so that the self-locking boss 233 on the rear side leaves the self-locking post 315 on the rear side. It cooperates with the transmission post 342 to slide in the actuating groove 212, which can push the transmission bar 2 to slide forward on the base 1 until the actuating part 341 is perpendicular to the transmission bar 2. Then the transmission handle 5 rotates to 45°, and then the transmission handle 5 continues to rotate.

[0071] At this time, the first spring 24 rebounds, which can push the actuating part 341 to swing upward and the transmission bar 2 to continue to move forward until the self-locking boss 233 located on the front side and the self-locking post 315 located on the front side are mutually locked, and the transmission handle 5 is at 90°. Thus, when the transmission handle 5 is at an angle of 0° or 90°, the first spring 24 continuously pushes the self-locking part 23 and the actuating part 341 to prevent the self-locking boss 233 from continuously locking with the self-locking post 315. The self-locking boss 233 will not move down away from the self-locking post 315, thus realizing the self-locking function.

[0072] At the same time, when it is necessary to rotate from 90° to 0°, the operation process is reversed as described above, thus realizing the reciprocating motion of the transmission bar 2 and achieving the transmission function.

[0073] The self-locking component 23 has a mounting groove 231; the transmission bar 2 is provided with a mounting post 214. After the first spring 24 is placed in the mounting post 214 with the first spring 24, it is inserted into the mounting groove 231, so that the self-locking structure has a spring compression and loosening effect during use, and a compression damping elastic effect during use.

[0074] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any way. Any person skilled in the art can make more possible variations and modifications to the technical solution of this utility model, or modify it into equivalent embodiments, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the concept of this utility model without departing from the content of the technical solution of this utility model should be covered within the protection scope of this utility model.

Claims

1. A transmission lock box with self-locking function, comprising a base, a transmission bar, a toggle block, a self-locking component, multiple first springs, and a transmission box, characterized in that: The transmission bar is slidably connected to the base, and a transmission housing is formed on the transmission bar. The transmission housing is provided with the self-locking component and multiple first springs. The multiple first springs respectively abut against and press against the self-locking component. The transmission box is set on the transmission bar to enclose the transmission housing. The actuating block is rotatably connected inside the transmission box. The actuating part is formed at the end of the actuating block. The actuating part abuts against and presses against the self-locking component. By rotating the actuating block, the self-locking component can be pushed up and down and the transmission bar can slide back and forth.

2. A transmission lock box with self-locking function according to claim 1, characterized in that: The transmission bar has two limiting grooves, which are spaced apart and extend along the length of the transmission bar. The bottom of the base has two mounting screws, which pass through the two limiting grooves one to one. Each mounting screw is connected to a screw plate, which is located above the transmission bar. A second spring is fitted on the mounting screw.

3. A transmission lock box with self-locking function according to claim 1, characterized in that: The top of the transmission housing is formed with an installation chamber, and the self-locking component is disposed in the installation chamber. The bottom of the installation chamber is formed with multiple installation posts, and each installation post is fitted with the first spring.

4. A transmission lock box with self-locking function according to claim 3, characterized in that: The inner wall of the mounting cavity has a toggle groove that extends vertically, and the toggle part is formed with a transmission column that slides within the toggle groove.

5. A transmission lock box with self-locking function according to claim 1, characterized in that: The transmission box includes a front cover and a rear cover, which are connected to each other to form the transmission box. The front cover and the rear cover together enclose the transmission housing. The front cover and the rear cover each have a rotating hole, and the two rotating holes are rotatably connected to the actuating block.

6. A transmission lock box with self-locking function according to claim 5, characterized in that: The front cover and the rear cover are formed with multiple connecting blocks on opposite sides. The rear cover has multiple connecting holes. The multiple connecting blocks are inserted into the multiple connecting holes one by one to achieve a snap-fit ​​connection between the front cover and the rear cover.

7. A transmission lock box with self-locking function according to claim 6, characterized in that: The rear cover and the front cover have two mounting holes on opposite sides, and a connector is provided in the mounting holes.

8. A transmission lock box with self-locking function according to claim 7, characterized in that: The mounting hole has a first through hole that penetrates the rear cover, and the front cover has a second through hole that penetrates the front cover laterally. The first through hole and the second through hole are opposite to each other. The connector is formed with a first connecting part and a second connecting part, and the first connecting part and the second connecting part pass through the first through hole and the second through hole in sequence.

9. A transmission lock box with self-locking function according to claim 8, characterized in that: The front cover and the rear cover are formed with two damping grooves on opposite sides, and each damping groove is provided with a damping element, which abuts against and presses against the first connecting part.

10. A transmission lock box with self-locking function according to claim 5, characterized in that: The self-locking component has self-locking bosses formed on the left and right sides of its top, and two self-locking posts are formed on the opposite sides of the front cover and the rear cover. The two self-locking posts are arranged at intervals, and the self-locking bosses and self-locking posts lock each other to restrict the movement of the transmission bar.

Images