Anti-lock door and window handle structure

Abstract

The second locking piece pushes the second sliding part to make the lock block rotate in the opposite direction, and the second sliding part moves away from the first locking piece. The second sliding part allows the first handle to be pressed down to drive the first locking piece to rotate in the opposite direction, and drives the lock bar to rotate.

Description

Technical Field

[0001] The present invention relates to the technical field of door and window handle assemblies, and in particular to a reverse-locking door and window handle structure. Background Art

[0002] The applicant's prior patent CN107829603A discloses an anti-locking door and window handle assembly, comprising a shell, an inner handle, a lock bar, an anti-lock assembly, an outer lock core and an outer handle arranged on the shell, the inner handle being connected to the lock bar, and the outer handle being connected to the outer lock core, wherein a blocking member is provided on the outer lock core, and the anti-lock assembly comprises a locking member and a locking positioning device, the locking member being provided with an anti-lock hook groove, a lock bar pushing hole and a blocking member guide hole, the blocking member being connected to the outer lock core, and a deduction column being further provided on the blocking member, the deduction column of the blocking member being inserted into the blocking member guide hole of the locking member, the locking positioning device being displaceably mounted on the shell, a limiting column being provided on the locking positioning device, the limiting column being placed in the anti-lock hook groove, the inner handle driving the locking member through the lock bar, the locking member utilizing the anti-lock hook groove to push the limiting column to displace, and drives the locking positioning device to displace, so that the limiting column and the blocking member are offset, thereby limiting the movement of the outer lock core and the outer handle.

[0003] The above structure has its shortcomings. The anti-locking component has a complex structure, and the structural strength requirements of the locking part of the anti-locking component are high. The locking part has a complex structure and high manufacturing cost. The anti-locking hook groove of the locking part may not be able to hook or hook the limit column. The operating stability is insufficient, which affects the service life. Moreover, the linear movement of the locking positioning device makes the overall volume larger. Summary of the Invention

[0004] The purpose of the present invention is to provide a reverse-locking door and window handle structure with stable operation.

[0005] The object of the present invention is achieved in this way.

[0006] The reverse-locking door and window handle structure comprises a first handle rotatably mounted on a first mounting seat, a second handle rotatably mounted on a second mounting seat, a lock bar driving a lock tongue, and a locking assembly arranged in the first mounting seat, wherein the locking assembly comprises a first locking piece that rotates synchronously with the first handle, a second locking piece that is coaxially arranged with the first locking piece and rotates synchronously with the lock bar, and a locking block, the locking block being rotatably mounted in the first mounting seat in a non-coaxial manner with the first locking piece and the second locking piece, a recess being provided on the outer circumference of the locking block facing a portion of the first locking piece and the second locking piece, and a first sliding portion and a second sliding portion being formed on both sides of the recess, respectively.

[0007] The second handle rotates to one side, driving the second locking piece to rotate through the lock bar. The second locking piece pushes the lock block to rotate through the first sliding portion, so that the second sliding portion of the lock block approaches the first locking piece. The second sliding portion restricts the first handle from rotating to the other side, driving the first locking piece to rotate in the opposite direction.

[0008] The second handle rotates to the other side, driving the second locking plate to rotate in the opposite direction through the locking bar. The second locking plate pushes the second sliding part to make the locking block rotate in the opposite direction. The second sliding part moves away from the first locking plate. The second sliding part allows the first handle to rotate to the other side, driving the first locking plate to rotate in the opposite direction, and driving the locking bar to rotate.

[0009] According to this anti-locking door and window handle structure, the second handle can be lifted up to lock (lock) through the locking component, and can be pressed down to unlock (unlock) and unlock simultaneously. It is simple to use and easy to move between the locking components. The second locking piece is used to push the locking block to rotate. The locking component has a simple structure, stable and reliable operation, is not prone to failure, and has a long service life. Moreover, the overall structure is small in size, saving space for the first mounting seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a structural diagram of Example 1.

[0011] Figure 2 This is a schematic cross-sectional view of the first embodiment.

[0012] Figure 3 This is a schematic diagram of the exploded structure of the first handle and the first mounting base in Example 1.

[0013] Figure 4 This is a schematic diagram of the exploded structure of the first handle and the first mounting base in Example 1 (from another perspective).

[0014] Figure 5 This is a schematic diagram of the exploded structure of the second handle and the second mounting base in Example 1.

[0015] Figure 6 Schematic diagram of the locking assembly and the locking block in the reverse locking state in Example 1.

[0016] Figure 7 Schematic diagram of the locking assembly and the locking block in the reverse locking state in Example 1 (the first locking piece is omitted).

[0017] Figure 8 This is a schematic diagram of the normal state of the locking assembly and the locking block in Example 1.

[0018] Figure 9 This is a schematic diagram of the decomposed structure of Example 2.

[0019] Figure 10 This is a schematic cross-sectional view of the second embodiment.

[0020] Figure 11 This is a schematic diagram of the exploded structure of the first handle and the first mounting base in Example 2.

[0021] Figure 12This is a schematic diagram of the exploded structure of the first handle and the first mounting base in Example 2 (from another perspective).

[0022] Figure 13 This is a schematic diagram of the exploded structure of the second handle and the second mounting base in Example 2.

[0023] Figure 14 Schematic diagram of the locking assembly and the locking block in the reverse locking state in Example 1.

[0024] Figure 15 This is a schematic diagram of the normal state of the locking assembly and the locking block in Example 1.

[0025] Figure 16 This is a schematic diagram of the state in which the lock core drives the lock block through the locking assembly in Example 1.

[0026] Figure 17 This is a structural diagram of the first mounting base in the modified example.

[0027] Figure 18 This is a schematic diagram of the normal state of the locking assembly and the locking block in the modified example. DETAILED DESCRIPTION

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] Example 1, see Figure 1-8 As shown, a reverse locking door and window handle structure comprises a first handle 1 rotatably mounted on a first mounting base 2, a second handle 6 rotatably mounted on a second mounting base 5, and a locking tongue 40 (see Figure 9 ) A movable locking bar 4 and a locking assembly 3 provided in the first mounting base 2. The second handle 6 is connected to one end of the locking bar 4, and the first handle 1 is connected to the other end of the locking bar 4 through the locking assembly 3.

[0030] In this embodiment, the locking assembly 3 includes a first locking plate 31 that rotates synchronously with the first handle 1, a second locking plate 32 coaxially arranged with the first locking plate 31 and rotating synchronously with the locking bar 4, and a locking block 30. The locking block 30 is rotatably disposed within the first mounting base 2, non-coaxially with the first and second locking plates 31, 32. Specifically, the locking block 30 rotates within the first mounting base 2 between a locked position (locked position) and an unlocked position (unlocked position). The locking block 30 is located on the left side (one side) of the locking assembly 3. A reset device 7 is provided within the first mounting base 2, corresponding to the right side (the other side) of the locking assembly 3. Specifically, the first and second locking plates 31, 32 are located between the locking block 30 and the reset device 7.

[0031] Among them, the locking block 30 is provided with a recessed portion 300 on one side facing the locking assembly 3 (i.e., a portion of the outer periphery of the locking block 30 facing the first locking piece 31 and the second locking piece 32), and the locking block 30 is formed with a first sliding portion 301 and a second sliding portion 302 on both sides of the recessed portion 300. In this embodiment, the first sliding portion 301 and the second sliding portion 302 respectively include a first sliding surface and a second sliding surface. The first sliding portion 301 and the second sliding portion 302 of the locking block 30 are arranged symmetrically with respect to the rotation axis of the locking block 30. The locking block 30 is provided with two positioning holes 303 on each side corresponding to the first sliding portion 301 and the second sliding portion 302. The two positioning holes 303 are connected on the surface of the locking block 30, and as shown in FIG. Figure 8 As shown, they are formed on the same circumference with the rotation axis of the locking block 30 as the center.

[0032] A positioning mechanism is provided in the first mounting seat 2, which positions the locking block 30 in a locked position or an unlocked position. In this embodiment, the positioning mechanism includes a positioning assembly 8 and a positioning recess 21. The positioning assembly 8 includes a positioning spring 81 and a ball 82. The positioning spring 81 is placed in the positioning recess 21 to eject the ball 82. Two positioning holes 303 are provided on each side of the locking block 30 corresponding to the first sliding portion 301 and the second sliding portion 302. The ball 82 is positioned against the positioning holes 303. When the locking block 30 rotates, the ball 82 on the same side moves from one positioning hole 303 to the other positioning hole 303. The two sets of positioning assemblies 8 are staggered. Specifically, when the ball 82 is located in one positioning hole 303, the locking block 30 is positioned in the locked position, and when the ball 82 is located in the other positioning hole 303, the locking block 30 is positioned in the unlocked position.

[0033] The first locking piece 31 is in the shape of a round pancake. A first arc-shaped cutout portion 310 is provided on one side (a portion) of the first locking piece 31 facing the locking block 30, serving as a first notch. The first arc-shaped cutout portion 310 forms a first arc surface 311 on the first locking piece 31, a limiting surface 312 on one side (upper side) of the first arc surface 311, and an avoidance surface 315 on the other side (lower side) of the first arc surface 311. The first arc surface 311 is close to the first sliding portion 301 or the second sliding portion 302. When the first arc surface 311 is close to the second sliding portion 302, the second sliding portion (302) abuts against the limiting surface (312) of the first locking piece (31), thereby limiting the counterclockwise (reverse) rotation of the first locking piece (31).

[0034] The second locking piece 32 is in the shape of a circular pancake. A second arcuate cutout 320, serving as a second notch, is provided on one side (a portion) of the second locking piece 32 facing the locking block 30. The second arcuate cutout 320 forms a second arcuate surface 321 on the second locking piece 32, with guide surfaces 322 on either side of the second arcuate surface 321. The second locking piece 32 pushes the locking block 30 by sliding between the guide surfaces 322 and the first sliding portion 301 or the second sliding portion 302, causing the locking block 30 to rotate within the first mounting seat 2 between a locked position and an unlocked position. When the locking block 30 is in the locked position, the second sliding portion 302 is adjacent to the second arcuate surface 321. When the locking block 30 is in the unlocked position, the first sliding portion 301 is adjacent to the second arcuate surface 321. The second locking piece 32 is integrally connected and fixed to the locking bar 4. It should be noted that the first arc surface 311 and the second arc surface 321 are close to the first sliding part 301 or the second sliding part 302, which means that the minimum distance between the two is zero, that is, there is a counteraction situation, but the first arc surface 311 and the second arc surface 321 cannot push the first sliding part 301 or the second sliding part 302 to move.

[0035] The first locking plate 31 is provided with a clearance hole 313. The second locking plate 32 is provided with a transmission portion 323 that is inserted into the clearance hole 313. A gap (empty space) is provided between the transmission portion 323 and the clearance hole 313. When the second handle 6 is rotated (lifted) to one side, the second locking plate 32 is rotated. The transmission portion 323 drives the first locking plate 31 to rotate via the clearance hole 313. Conversely, when the second handle 6 is rotated (pressed) to the other side, the second locking plate 32 is rotated. The gap prevents the transmission portion 323 from rotating the first locking plate 31. Specifically, the transmission portion 323 rotates within the clearance hole 313, preventing the first locking plate 31 from rotating with the second locking plate 32. As a result, the second locking plate 32 pushes the second sliding portion 302 via the guide surface 322, rotating the locking block 30 to the unlocked position. In this embodiment, the clearance hole 313 is formed as two interconnected, centrally symmetrical, sector-shaped holes. The second locking plate 32, the lock bar 4, and the transmission portion 323 are integrally formed. The transmission part 323 is in a straight line shape and is inserted into the two fan-shaped holes at the same time. Figure 6 If the transmission portion 323 rotates clockwise, it can directly abut against one side wall of the clearance hole 313, driving the first locking plate 31 to rotate clockwise. On the other hand, if the transmission portion 323 rotates counterclockwise, it must rotate primarily through a predetermined angle before it abuts against the other side wall of the clearance hole 313 (the side wall opposite the first side wall), driving the first locking plate 31 to rotate counterclockwise. The predetermined angle is the angle required for the second locking plate 32 to rotate away from the second sliding portion 302 of the locking block 30 to prevent interference with the rotation of the first locking plate 31.

[0036] A return device 9 is provided in both the first mounting seat 2 and the second mounting seat 5. The return device 9 includes a torsion spring 91 and a transmission plate 92. The center of the transmission plate 92 is provided with a non-circular hole serving as a connecting hole for rotationally connecting to the first handle 1 or the second handle 6. A protrusion 921 is provided on one side of the transmission plate 92, and the protrusion 921 is located between the two ends of the torsion spring 91. The first mounting seat 2 and the second mounting seat 5 are provided with a blocking portion 90, and the blocking portion 90 is located between the two ends. The transmission plate 92 is abutted against one end of the torsion spring 91 through the protrusion 921, and the other end of the torsion spring 91 is abutted against the blocking portion 90. The first locking plate 31 is provided with a protrusion 314, and the protrusion 314 is connected to the transmission plate 92 in the first mounting seat 2, that is, the transmission plate 92 and the first locking plate 31 rotate synchronously.

[0037] Both the first mounting seat 2 and the second mounting seat 5 are equipped with a reset device 7. The reset device 7 includes a reset plate 71 and two reset springs 72. One end of each reset spring 72 abuts against one side of the reset plate 71, while the other end of each reset spring 72 abuts against the first mounting seat 2 or the second mounting seat 5. The transmission plate 92, the first locking plate 31, and the second locking plate 32 are each provided with a reset plane 70 on their outer peripheries. The reset plane 70 can abut against the other side of the reset plate 71 via a plane, thereby maintaining the transmission plate 92 in its normal position. When the transmission plate 92 is in the normal position, the two guide surfaces 322 of the second locking plate 32 remain symmetrically arranged relative to the reset plate 71, with the limiting surface 312 located between the adjacent upper guide surface 322 and the second sliding portion 302. The two guide surfaces 322 of the second locking plate 32 are arranged parallel to the reset plane 70 of the second locking plate 32. Furthermore, when the transmission plate 92 is in the normal position, the lower guide surface 322 is located between the first sliding portion 301 and the avoidance surface 315. Regardless of how the first locking piece 31 or the second locking piece 32 rotates, the avoidance surface 315 does not interfere with the first sliding portion 301. Therefore, the avoidance surface 315 does not interfere with the sliding movement between the guide surface 322 of the lower portion of the second locking piece 32 and the first sliding surface 301. As the first locking piece 31 or the second locking piece 32 rotates, the contact between the first locking piece 31 and the second locking piece 32 changes from surface contact to point contact, pressing the reset plate 71. The displacement of the reset plate 71 compresses the reset spring 72, and the elastic force of the reset spring 72 resets the first locking piece 31 or the second locking piece 32.

[0038] During use, the second handle 6 is rotated to one side (lifted upward), driving the second locking plate 32 clockwise via the locking bar 4. This clockwise movement of the locking bar 4 drives the lock tongue 40 outward (even if the lock tongue 40 is in the locked position, this is also called locking). The guide surface 322 at the bottom of the second locking plate 32 rotates until it abuts the first sliding portion 301. The second locking plate 32 then continues to rotate, causing the guide surface 322 at the bottom of the second locking plate 32 to slide against the first sliding surface of the first sliding portion 301, thereby pushing the locking block 30 clockwise from the unlocked position to the locked position. Specifically, the second sliding portion 302 of the locking block 30 approaches the first curved surface 311 of the first locking plate 31. The upper limiting surface 312 of the first locking plate 31 abuts against the second sliding portion 302, thus restricting reverse rotation of the first locking plate 31. At this point, the first handle 1 cannot be rotated to the other side (pressed downward) to cause the first locking plate 31 to rotate counterclockwise, thus achieving reverse locking. When the second handle 6 is released, the return device 9 returns the second handle 6 to the center position, and the reset device 7 resets the second locking piece 32 and keeps the locking block 30 to restrict the reverse rotation of the first locking piece 31 .

[0039] When the second handle 6 is rotated to the other side (pressed downward), the second locking plate 32 rotates counterclockwise via the locking bar 4, which in turn drives the locking tongue 40 inward counterclockwise (even if the locking tongue 40 is in the unlocked position, this is still considered unlocking). At this point, the guide surface 322 on the upper portion of the second locking plate 32 slides over the limiting surface 312 and against the second sliding surface of the second sliding portion 302, pushing the locking block to rotate counterclockwise from the locked position to the unlocked position. The second sliding portion 302 moves away from the first locking plate 31, effectively unlocking the second handle 6 and releasing the reverse lock. Simultaneously, the transmission portion 323 rotates with the second locking plate 32 within the clearance hole 313. Until the detent is removed, the rotation of the second handle 6 will not cause the first handle 1 to rotate. When the second handle 6 is released, the return device 9 returns the second handle 6 to its normal position, and the reset device 7 resets the second locking plate 32. The locking block 30 no longer restricts the counterclockwise rotation of the first locking plate 31. At this time, the first handle 1 is pressed down to drive the first locking piece 31 to rotate counterclockwise, and the first locking piece 31 slides into the recess 300 and drives the second locking piece 32 to rotate counterclockwise, that is, drives the lock bar 4 to rotate counterclockwise, and the first handle 1 can be unlocked freely.

[0040] Example 2, see Figure 9-16This embodiment differs from the first embodiment in that the locking assembly 3 further includes a third locking plate 33, which is positioned between the transmission plate 92 in the first mounting seat 2 and the first locking plate 31. The first handle 1 also includes a lock core 11, which passes through the non-circular hole in the transmission plate 92 in the first mounting seat 2 and drives the third locking plate 33 to rotate synchronously. The third locking plate 33 is in the shape of a circular pancake. A third arcuate cutout 330 is defined on the side (part) facing the locking block 30, and a restoring flat surface 70 is defined on the portion facing away from the locking block 30. The third arcuate cutout 330 is identical to the second arcuate cutout 320, forming the second arcuate surface 321 and guide surfaces 322 on either side of the second arcuate surface 321 on the third locking plate 33 (i.e., the outer contour of the third locking plate 33 is identical to that of the second locking plate 32). The third locking piece 33 pushes the locking block 30 by sliding against the first sliding portion 301 or the second sliding portion 302, causing the locking block 30 to rotate between a locked position and an unlocked position within the first mounting seat 2. The third locking piece 33 abuts against the reset plane 70 and the reset plate 71. Specifically, the third locking piece 33 is provided with an arcuate hole 331. The protrusion 314 of the first locking piece 31 passes through the arcuate hole 331 and connects to the transmission piece 92 within the first mounting seat 2.

[0041] Inserting the key into the lock cylinder 11 causes the third locking plate 33 to rotate clockwise. The third locking plate 33 slides between the first sliding portion 301 and the guide surface 322 of the third locking plate 33, pushing the lock block 30. The lock block 30 then rotates clockwise, causing the second sliding portion 302 to approach the second curved surface 321, which in turn approaches the first curved surface 311. The second sliding portion 302 restricts counterclockwise rotation of the first locking plate 31, achieving reverse locking. When the key is released, the reset device 7 resets the third locking plate 33, allowing the key to be removed.

[0042] The lock cylinder 11 drives the third locking plate 33 to rotate counterclockwise. This third locking plate 33 pushes the second sliding portion 302, causing the lock block 30 to rotate and move the second sliding portion 302 away from the first curved surface 311. Next, the third locking plate 33 continues to rotate counterclockwise, and the protrusion 314 moves within the arcuate hole 331 until it abuts against the sidewall of the arcuate hole 331. At this point, the third locking plate 33 drives the first locking plate 31 to rotate counterclockwise, moving the first locking plate 31 into the recess 300 of the lock block 30. The clearance hole 313 of the first locking plate 31 also drives the second locking plate 32 counterclockwise via the transmission portion 323, thereby driving the lock bar 4 counterclockwise, thereby unlocking and releasing the lock tongue 40. The user can also lock, unlock, and release the lock from the first handle 1 using a key.

[0043] In the above-mentioned first and second embodiments, the positioning mechanism is composed of the positioning assembly 8 and the positioning recess 12. However, the present invention is not limited thereto. The positioning mechanism may also be composed of at least one first magnet M1 provided on one side of the first mounting seat 2 and the locking block 30 and two second magnets M2 provided on the other side of the first mounting seat 2 and the locking block 30 (see Figure 17 as well as Figure 18 ).

[0044] like Figure 17 As shown, a pair of first magnets M1 are provided on the first mounting seat 2. Specifically, a pair of first magnets M1 are provided in a pair of positioning recesses 21 of the first mounting seat 2. Figure 18 As shown, two pairs of second magnets M2 are mounted on the lock block 30. Each first magnet M1 corresponds to two second magnets M2. Furthermore, the first magnets M1 and second magnets M2 are positioned in an opposing pattern. When a first magnet M1 is attracted to one of the second magnets M2, the lock block 30 is locked. On the other hand, when a first magnet M1 is attracted to another of the second magnets M2, the lock block 30 is unlocked.

[0045] Hereinafter, the effects of the anti-locking door and window handle structure according to the embodiment will be described.

[0046] The reverse-locking door and window handle structure includes a first handle 1 rotatably arranged on the first mounting seat 2, a second handle 6 rotatably arranged on the second mounting seat 5, a lock bar 4 that drives the lock tongue 40 to move, and a lock assembly 3 arranged in the first mounting seat 2, wherein the lock assembly 3 includes a first lock plate 31 that rotates synchronously with the first handle 1, a second lock plate 32 that is coaxially arranged with the first lock plate 31 and rotates synchronously with the lock bar 4, and a lock block 30, the lock block 30 is rotatably arranged in the first mounting seat 2 in a non-coaxial manner with the first lock plate 31 and the second lock plate 32, a recess 300 is provided on the outer periphery of the lock block 30 facing a portion of the first lock plate 31 and the second lock plate 32, and the lock block 30 forms a first sliding portion 301 and a second sliding portion on both sides of the recess 300, respectively. The second locking piece 32 pushes the second sliding portion 302 to rotate the lock block 30 in the opposite direction, and the second sliding portion 302 is away from the first locking piece 31. The second sliding portion 302 allows the first handle 1 to rotate in the opposite direction (press down), driving the first locking piece 31 to rotate in the opposite direction.

[0047] According to this anti-locking door and window handle structure, the second handle 6 is lifted up to lock (lock) through the locking component 3, and is pressed down to unlock (unlock) and unlock simultaneously. It is simple to use and operate, and the movement between the locking components 3 is easy and labor-saving. The second locking piece 32 is used to push the locking block 30 to rotate. The locking component 3 has a simple structure, stable and reliable operation, is not prone to failure, and has a long service life. Moreover, the overall structure is small in size, saving space for the first mounting seat 2.

[0048] In a more specific solution, the second locking piece 32 is in the shape of a pancake, and a second arc-shaped cut-out portion 320 is provided on a part of the second locking piece 32 facing the locking block 30. The second arc-shaped cut-out portion 320 forms a second arc surface 321 and a guide surface 322 on both sides of the second arc surface 321 on the second locking piece 32. The second locking piece 32 pushes the locking block 30 by sliding between the guide surface 322 and the first sliding portion 301 or the second sliding portion 302, so that the locking block 30 rotates between the locked position and the unlocked position in the first mounting seat 2. When the locking block 30 is in the locked position, the second sliding portion 302 is close to the second arc surface 321. When the locking block 30 is in the unlocked position, the first sliding portion 301 is close to the second arc surface 321. The second locking piece 32 and the locking bar 4 are connected and fixed as a whole.

[0049] According to this solution, the second locking piece 32 has a simple structure, is easy to manufacture, and is not easily damaged. It is easy to push the locking block 30 to rotate, thereby making it easy to rotate (switch) the locking block 30 between the locked position and the unlocked position.

[0050] In a more specific solution, the first locking piece 31 is in the shape of a round cake, and a first arc-shaped cut-out portion 310 is provided on a part of the first locking piece 31 facing the locking block 30. The first arc-shaped cut-out portion 310 forms a first arc surface 311 and a limiting surface 312 located on one side of the first arc surface 311 on the second locking piece 32. The first arc surface 311 is close to the first sliding portion 301 or the second sliding portion 302. When the first arc surface 311 is close to the second sliding portion 302, the second sliding portion 302 is against the limiting surface 312 of the first locking piece 31, thereby limiting the reverse rotation of the first locking piece 31.

[0051] According to this solution, the first locking piece 31 has a simple structure, is easy to manufacture, is not easily damaged, and is easy to lock with the locking block 30, thereby easily limiting the first handle 1 from rotating to the other side (pressing down).

[0052] In a more specific solution, the first locking piece 31 is provided with a clearance hole 313, and the second locking piece 32 or the lock bar 4 is provided with a transmission part 323 inserted into the clearance hole 313, and a virtual position is provided between the transmission part 323 and the clearance hole 313. The second handle 6 is rotated to one side to drive the second locking piece 32 to rotate, and the transmission part 323 drives the first locking piece 31 to rotate through the clearance hole 313. The second handle 6 is rotated to the other side (pressed down) to drive the second locking piece 32 to rotate, and the transmission part 323 rotates in the clearance hole 313. The virtual position prevents the first locking piece 31 from rotating with the second locking piece 32, so that the second locking piece 32 pushes the second sliding part 302 through the guide surface 322 to rotate the lock block 30 to the unlocked position.

[0053] According to this solution, the second handle 6 will not drive the first handle 1 to rotate when unlocking, thereby facilitating unlocking.

[0054] In a more specific solution, a return device 9 is provided in the first mounting seat 2 and the second mounting seat 5. The return device 9 includes a torsion spring 91 and a transmission plate 92. A connecting hole is provided in the center of the transmission plate 92 for rotationally connecting to the first handle 1 or the second handle 6. A convex portion 921 is provided on one side of the transmission plate 92. The convex portion 921 is located between the two ends of the torsion spring 91. The first mounting seat 2 and the second mounting seat 5 are provided with a blocking portion 90. The blocking portion 90 is located between the two ends of the torsion spring 91. The transmission plate 92 is abutted against one end of the torsion spring 91 through the convex portion 921, and the other end of the torsion spring 91 is abutted against the blocking portion 90.

[0055] According to this solution, the first handle 1 and the second handle 6 are returned to their original position by the return device 9 , which is convenient to use and easy to install. The torsion spring 91 is only stressed when in use, and has a long service life.

[0056] In a more specific solution, a reset device 7 is provided in the first mounting seat 2 and the second mounting seat 5. The reset device 7 includes a reset plate 71 and a reset spring 72. One end of the reset spring 72 abuts against one side of the reset plate 71, and the other end of the reset spring 72 abuts against the corresponding first mounting seat 2 or the second mounting seat 5. A reset plane 70 is provided on the outer periphery of the transmission plate 92, the first locking plate 31 and the second locking plate 32. The reset plane 70 can abut against the other side of the reset plate 71 through a plane, so that the transmission plate 92 connected to the first locking plate 31 remains in a return state. When the transmission plate 92 is in the return state, the two guide surfaces 322 of the second locking plate 32 remain symmetrically arranged relative to the reset plate 71, and the limiting surface 312 is located between the adjacent guide surfaces 322 and the second sliding portion 302.

[0057] According to this solution, the reset device 7 returns the first handle 1, the second handle 6, and the locking assembly 3 to their initial positions, ensuring that the entire mechanism operates normally and stably.

[0058] The lock assembly 3 further comprises a third locking piece 33, the first handle 1 is provided with a lock core 11, the third locking piece 33 is arranged between the transmission piece 92 in the first mounting seat 2 and the first locking piece 31, the lock core 11 passes through the connecting hole of the transmission piece 92 in the first mounting seat 2, and drives the third locking piece 33 to rotate synchronously. The third locking piece 33 is in the shape of a pancake, and a part of the third locking piece 33 facing the lock block 30 is provided with a third arc-shaped cutout portion 330, and a part facing away from the lock block 30 is provided with the reset plane 70. The third arc-shaped cutout portion 330 has the same shape as the second arc-shaped cutout portion 320. The third arc-shaped cutout portion 330 forms the second arc surface 321 and the guide surfaces 322 located on both sides of the second arc surface 321 on the third locking piece 33. The third locking piece 33 slides between the guide surface 322 and the first sliding portion 301 or the second sliding portion 302 to push the lock block 30, so that the lock block 30 rotates between the locked position and the unlocked position in the first mounting seat 2, and the third locking piece 33 is abutted against the reset plate 71 by the reset plane 70.

[0059] According to this anti-locking door and window handle structure, the anti-lock (lock) can also be unlocked by a key, and the scope of use is wider. The third locking piece 33 has a simple structure, is easy to manufacture, and is not easy to damage. It is easy and labor-saving to push the lock block 30 to rotate.

[0060] In a more specific solution, the third locking piece 33 is provided with an arc-shaped hole 331, and the first locking piece 31 is provided with a protrusion 314. After the protrusion 314 passes through the arc-shaped hole 331, it is connected to the transmission piece 92 in the first mounting seat 2. The lock core 11 drives the third locking piece 33 to rotate, and the protrusion 314 moves in the arc-shaped hole 331. When the guide surface 322 of the third locking piece 33 pushes the first sliding part 301 to move, the arc-shaped hole 331 and the protrusion 314 of the third locking piece 33 are against each other, and the third locking piece 33 drives the first locking piece 31 and the lock bar 4 to rotate.

[0061] According to this solution, the third locking piece 33 is rotatably clamped between the transmission piece 92 and the first locking piece 31 , which is easy to assemble and not easy to be misplaced.

[0062] In a more specific solution, a positioning mechanism is provided in the first mounting seat 2 , and the positioning mechanism positions the locking block 30 at a locked position or an unlocked position.

[0063] According to this solution, the locking block 30 is positioned at a locked position or an unlocked position by the positioning mechanism, thereby preventing the locking block 30 from making unnecessary rotations that would affect the performance of the entire structure.

[0064] In a more specific solution, the positioning mechanism includes a positioning component 8 and a positioning recess 21. The positioning component 8 includes a positioning spring 81 and a ball 82. The positioning spring 81 is placed in the positioning recess 21 to push out the ball 82. The locking block 30 is provided with two positioning holes 303. The ball 82 is positioned against the positioning holes 303. The ball 82 moves from one positioning hole 303 to another positioning hole 303. When the ball 82 is located in one positioning hole 303, the locking block 30 is positioned in the locked position. When the ball 82 is located in the other positioning hole 303, the locking block 30 is positioned in the unlocked position.

[0065] According to this solution, the locking block 30 is positioned by the rotation of the positioning assembly 8 and operates stably in cooperation with the locking assembly 3 .

[0066] In a more specific solution, the two positioning holes 303 are connected.

[0067] According to this solution, the ball 82 can be easily moved between the two positioning holes 303 .

[0068] In a more specific solution, the positioning mechanism includes a first magnet M1 arranged on one side of the first mounting base 2 and the locking block 30, and two second magnets M2 arranged on the other side of the first mounting base 2 and the locking block 30. When the first magnet M1 is attracted to one of the second magnets M2, the locking block 30 is positioned in the locked position; when the first magnet M1 is attracted to the other of the second magnets M2, the locking block 30 is positioned in the unlocked position.

[0069] According to this solution, the first magnet M1 and the second magnet M2 can more easily realize the positioning mechanism, thereby facilitating the assembly of the anti-locking door and window handle structure.

Claims

1. A reverse-locking door and window handle structure, comprising a first handle (1) rotatably mounted on a first mounting seat (2), a second handle (6) rotatably mounted on a second mounting seat (5), a lock bar (4) for driving a lock tongue (40) to move, and a locking assembly (3) disposed within the first mounting seat (2), wherein: The locking assembly (3) comprises a first locking piece (31) that rotates synchronously with the first handle (1), a second locking piece (32) that is coaxially arranged with the first locking piece (31) and rotates synchronously with the locking bar (4), and a locking block (30). The locking block (30) is rotatably arranged in the first mounting seat (2) in a non-coaxial manner with the first locking piece (31) and the second locking piece (32). A recess (300) is provided on a portion of the outer periphery of the locking block (30) facing the first locking piece (31) and the second locking piece (32). The locking block (30) forms a first sliding portion (301) and a second sliding portion (302) on both sides of the recess (300). The second handle (6) rotates to one side to drive the second locking plate (32) to rotate through the locking bar (4), and the second locking plate (32) pushes the locking block (30) to rotate through the first sliding portion (301), so that the second sliding portion (302) of the locking block (30) is close to the first locking plate (31), and the second sliding portion (302) restricts the first handle (1) from rotating to the other side to drive the first locking plate (31) to rotate in the opposite direction. The second handle (6) rotates to the other side to drive the second locking plate (32) to rotate in the opposite direction through the locking bar (4), and the second locking plate (32) pushes the second sliding portion (302) to make the locking block (30) rotate in the opposite direction. The second sliding portion (302) moves away from the first locking plate (31), and the second sliding portion (302) allows the first handle (1) to rotate to the other side to drive the first locking plate (31) to rotate in the opposite direction, and also drives the locking bar (4) to rotate; The second locking piece (32) is in the shape of a round cake. A second arc-shaped cutout portion (320) is provided on a portion of the second locking piece (32) facing the locking block (30). The second arc-shaped cutout portion (320) forms a second arc surface (321) and guide surfaces (322) located on both sides of the second arc surface (321) on the second locking piece (32). The second locking piece (32) pushes the locking block (30) by sliding between the guide surface (322) and the first sliding portion (301) or the second sliding portion (302), so that the locking block (30) rotates between a locked position and an unlocked position in the first mounting seat (2). When the locking block (30) is in the locked position, the second sliding portion (302) is close to the second arc surface (321). When the locking block (30) is in the unlocked position, the first sliding portion (301) is close to the second arc surface (321). The second locking piece (32) and the locking bar (4) are connected and fixed as a whole. The first locking piece (31) is in the shape of a round cake. A first arc-shaped cutout portion (310) is provided on a portion of the first locking piece (31) facing the locking block (30). The first arc-shaped cutout portion (310) forms a first arc surface (311) and a limiting surface (312) located on one side of the first arc surface (311) on the first locking piece (31). The first arc surface (311) is close to the first sliding portion (301) or the second sliding portion (302). When the first arc surface (311) is close to the second sliding portion (302), the second sliding portion (302) abuts against the limiting surface (312) of the first locking piece (31), thereby limiting the reverse rotation of the first locking piece (31). The first locking piece (31) is provided with a clearance hole (313), the second locking piece (32) or the lock bar (4) is provided with a transmission part (323) inserted into the clearance hole (313), and a virtual position is provided between the transmission part (323) and the clearance hole (313). The second handle (6) rotates to one side to drive the second locking piece (32) to rotate, and the transmission part (323) drives the first locking piece (31) to rotate through the clearance hole (313). The second handle (6) rotates to the other side to drive the second locking plate (32) to rotate, and the transmission part (323) rotates in the clearance hole (313). The virtual position prevents the first locking plate (31) from rotating with the second locking plate (32), so that the second locking plate (32) pushes the second sliding part (302) through the guide surface (322) to rotate the locking block (30) to the unlocking position.

2. The anti-locking door and window handle structure according to claim 1 is characterized in that: A return device (9) is provided in each of the first mounting seat (2) and the second mounting seat (5). The return device (9) includes a torsion spring (91) and a transmission plate (92). A connection hole for rotationally connecting to the first handle (1) or the second handle (6) is provided at the center of the transmission plate (92). A convex portion (921) is provided on one side of the transmission plate (92). The convex portion (921) is located between the two ends of the torsion spring (91). The first mounting seat (2) and the second mounting seat (5) are provided with a blocking portion (90). The blocking portion (90) is located between the two ends of the torsion spring (91). The transmission plate (92) abuts against one end of the torsion spring (91) through the convex portion (921), and the other end of the torsion spring (91) abuts against the blocking portion (90).

3. The anti-locking door and window handle structure according to claim 2, characterized in that: A reset device (7) is provided in each of the first mounting seat (2) and the second mounting seat (5). The reset device (7) includes a reset plate (71) and a reset spring (72). One end of the reset spring (72) abuts against one side of the reset plate (71), and the other end of the reset spring (72) abuts against the corresponding first mounting seat (2) or the second mounting seat (5). A reset plane (70) is provided on the periphery of the transmission plate (92), the first locking plate (31) and the second locking plate (32). The reset plane (70) can abut against the other side of the reset plate (71) through a plane, so that the transmission plate (92) connected to the first locking plate (31) maintains a return state. When the transmission plate (92) is in the return state, the two guide surfaces (322) of the second locking plate (32) are symmetrically arranged relative to the reset plate (71), and the limiting surface (312) is located between the adjacent guide surfaces (322) and the second sliding portion (302).

4. The anti-locking door and window handle structure according to claim 3, characterized in that: The locking assembly (3) further comprises a third locking plate (33), the first handle (1) is provided with a lock core (11), the third locking plate (33) is placed between the transmission plate (92) in the first mounting seat (2) and the first locking plate (31), the lock core (11) passes through the connection hole of the transmission plate (92) in the first mounting seat (2) to drive the third locking plate (33) to rotate synchronously, the third locking plate (33) is in the shape of a round cake, a portion of the third locking plate (33) facing the locking block (30) is provided with a third arc-shaped cut-out portion (330) and a portion facing away from the locking block (30) is provided with the reset plane (70), the third arc-shaped cut-out portion ( The third arc-shaped cutout portion (330) has the same shape as the second arc-shaped cutout portion (320). The third arc-shaped cutout portion (330) forms the second arc surface (321) and the guide surfaces (322) located on both sides of the second arc surface (321) on the third locking piece (33). The third locking piece (33) pushes the locking block (30) by sliding between the guide surface (322) and the first sliding portion (301) or the second sliding portion (302), so that the locking block (30) rotates between the locking position and the unlocking position in the first mounting seat (2). The third locking piece (33) is abutted against the reset plane (70) and the reset plate (71).

5. The anti-locking door and window handle structure according to claim 4 is characterized in that: The third locking plate (33) is provided with an arc-shaped hole (331), and the first locking plate (31) is provided with a protrusion (314). After the protrusion (314) passes through the arc-shaped hole (331), it is connected to the transmission plate (92) in the first mounting seat (2). The lock core (11) drives the third locking plate (33) to rotate, and the protrusion (314) moves in the arc-shaped hole (331). When the guide surface (322) of the third locking plate (33) pushes the first sliding part (301) to move, the arc-shaped hole (331) and the protrusion (314) of the third locking plate (33) are abutted against each other, and the third locking plate (33) drives the first locking plate (31) and the lock bar (4) to rotate.

6. The anti-locking door and window handle structure according to claim 1, characterized in that: A positioning mechanism is provided in the first mounting seat (2), and the positioning mechanism positions the locking block (30) at a locked position or an unlocked position.

7. The anti-locking door and window handle structure according to claim 6, characterized in that: The positioning mechanism includes a positioning assembly (8) and a positioning recess (21). The positioning assembly (8) includes a positioning spring (81) and a ball (82). The positioning spring (81) is placed in the positioning recess (21) to eject the ball (82). The locking block (30) is provided with two positioning holes (303). The ball (82) abuts against the positioning holes (303) for positioning. The ball (82) moves from one positioning hole (303) to the other positioning hole (303). When the ball (82) is located in one positioning hole (303), the locking block (30) is positioned in a locked position. When the ball (82) is located in the other positioning hole (303), the locking block (30) is positioned in an unlocked position.

8. The anti-locking door and window handle structure according to claim 7, characterized in that: The two positioning holes (303) are connected.

9. The anti-locking door and window handle structure according to claim 6, characterized in that: The positioning mechanism includes a first magnet (M1) arranged on one side of the first mounting seat (2) and the locking block (30), and two second magnets (M2) arranged on the other side of the first mounting seat (2) and the locking block (30). When the first magnet (M1) is attracted to one of the second magnets (M2), the locking block (30) is positioned in a locked position. When the first magnet (M1) is attracted to the other of the second magnets (M2), the locking block (30) is positioned in an unlocked position.

Images