Lock transmission assembly and sliding door and window

Abstract

The utility model discloses a lock transmission assembly and a sliding door and window, the lock transmission assembly comprises a buckle assembly and a spring bolt assembly, and the spring bolt assembly is installed on the buckle assembly and can slide along the direction of a switch lock; the hand buckling assembly comprises a hand buckling shell, a hand buckling piece and a first elastic piece. The buckle piece is slidably installed on the buckle shell in the direction of the switch lock and can be in linkage with the spring bolt assembly to slide in the opening direction of the switch lock, and the two ends of the first elastic piece are connected to the buckle shell and the buckle piece respectively. A shifting block is assembled on the hand buckling piece in a sliding mode in the first direction, and when the shifting block slides, the shifting block can abut against or be staggered with the hand buckling shell in the lock opening and closing direction so as to lock or unlock the hand buckling piece. According to the utility model, only one first elastic piece is used between the hand buckling piece and the hand buckling shell to realize the automatic reset function of the hand buckling piece, and the shifting block is arranged on the hand buckling piece to realize the positioning function of the child safety lock, so that the internal mounting structure of the lock transmission assembly is greatly simplified, and the tedious steps of process assembly are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, and in particular to a lock transmission component and a sliding door and window. Background Art

[0002] At present, doors and windows are indispensable for ventilation in the construction industry. Sliding doors and windows are becoming more and more popular due to their small space and easy use. To prevent theft, sliding doors and windows are usually equipped with locks for locking and unlocking the door leaves. The locking seat is arranged on the fixed leaf (frame), and the hand lock tongue is arranged on the movable leaf. When the movable leaf is pushed close to the fixed leaf, the lock tongue enters the lock seat, so that the movable leaf is locked to the fixed leaf.

[0003] Existing locks are generally equipped with a child lock function. In order to simultaneously take into account the resetting of the buckle and the child lock function, two or more first elastic members are usually required to enable the buckle to take into account these two functions. However, multiple first elastic members will lead to increased installation complexity and assembly process. Utility Model Content

[0004] The utility model aims to provide a lock transmission component and a sliding door and window, aiming to solve the problem of complicated installation of the lock structure in the prior art.

[0005] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions: providing a lock transmission assembly, including: a buckle hand assembly and a lock tongue assembly, the lock tongue assembly is installed on the buckle hand assembly and the lock tongue assembly can slide along the direction of opening and closing the lock;

[0006] The buckle assembly includes a buckle housing, a buckle piece and a first elastic piece; the buckle piece is slidably mounted on the buckle housing along the direction of the switch lock and can be linked with the lock tongue assembly to slide along the opening direction of the switch lock, and the two ends of the first elastic piece are respectively connected to the buckle housing and the buckle piece;

[0007] A shift block is mounted on the buckle member for sliding along a first direction. When the shift block slides, it can contact or displace the buckle housing in the direction of the switch lock to lock or unlock the buckle member.

[0008] Furthermore, the handle assembly also includes a positioning member. When the shift block slides to a first position along a first direction, the shift block and the positioning member are misaligned in the switch lock direction. When the shift block slides to a second position, the shift block and the positioning member conflict in the switch lock direction.

[0009] Furthermore, a column is provided on the buckle member, a first limiting groove is provided on the positioning member, one end of the first elastic member is sleeved on the column, and the other end of the first elastic member is installed in the first limiting groove.

[0010] Furthermore, a waist hole is opened on the shift block along the first direction, and the column passes through the waist hole.

[0011] Furthermore, one end of the first elastic member abuts against the shift block, and the shift block abuts against the buckle member.

[0012] Furthermore, a second limiting groove and a column located in the second limiting groove are provided on the buckle member, one end of the first elastic member is sleeved on the column, and the other end of the first elastic member abuts against the buckle housing.

[0013] Furthermore, one end of the shift block facing the locking direction of the switch lock is exposed outside the buckle handle, and one end of the shift block facing the unlocking direction of the switch lock is located inside the buckle handle.

[0014] Furthermore, a buckle structure is provided between the handle member and the shift block, and when the shift block slides along the first direction, the shift block is limited to the first position or the second position by the buckle structure.

[0015] Furthermore, the lock tongue assembly includes a lock tongue seat, a lock tongue piece and a second elastic piece, the lock tongue seat is fixedly mounted on the buckle housing, the lock tongue piece is slidably mounted on the lock tongue seat along the direction of opening and closing the lock and can extend or retract the lock tongue seat, and the two ends of the second elastic piece are respectively connected to the lock tongue seat and the lock tongue piece.

[0016] Furthermore, a reset column is provided on the buckle handle, and a reset groove is provided on the lock tongue assembly along the direction of opening and closing the lock, and the reset column penetrates into the reset groove to link the lock tongue assembly through the buckle handle.

[0017] The embodiment of the utility model further provides a sliding door and window, which includes the lock transmission assembly as described above.

[0018] The embodiment of the utility model provides a lock transmission assembly and a sliding door and window, the lock transmission assembly includes: a hand assembly and a lock tongue assembly, the lock tongue assembly is installed on the hand assembly and the lock tongue assembly can slide along the direction of the switch lock; the hand assembly includes a hand shell, a hand piece and a first elastic piece; the hand piece is slidably installed on the hand shell along the direction of the switch lock and can be linked to the lock tongue assembly to slide along the opening direction of the switch lock, and the two ends of the first elastic piece are respectively connected to the hand shell and the hand piece; a shift block is mounted on the hand piece to slide along the first direction, and when the shift block slides, it can contact or displace the hand shell in the direction of the switch lock to lock or unlock the hand piece. The embodiment of the utility model realizes the automatic reset function of the hand piece by using only one first elastic piece between the hand piece and the hand shell, and sets a shift block on the hand piece to realize the child safety lock position function, thereby greatly simplifying the internal installation structure of the lock transmission assembly and reducing the cumbersome steps of the process assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the overall structure of a lock transmission assembly provided in an embodiment of the utility model;

[0021] Figure 2 A cross-sectional view of a lock transmission assembly in a locked state provided by an embodiment of the utility model;

[0022] Figure 3 A cross-sectional view of a lock transmission assembly in an unlocked state provided by an embodiment of the utility model;

[0023] Figure 4 Another cross-sectional view of the lock transmission assembly provided by the embodiment of the utility model in the unlocked state;

[0024] Figure 5 A cross-sectional view of a handle assembly provided in an embodiment of the utility model;

[0025] Figure 6 Another cross-sectional view of the hand buckle assembly provided in the embodiment of the utility model;

[0026] Figure 7 Another cross-sectional view of the hand buckle assembly provided in the embodiment of the utility model;

[0027] Figure 8 A schematic diagram of the structure of a handle assembly provided in an embodiment of the utility model;

[0028] Fig. 9 A bottom view of the lock transmission assembly provided in an embodiment of the utility model.

[0029] Description of the symbols in the figure:

[0030] 1. Handle assembly; 11. Handle shell; 12. Handle member; 121. Dial block; 1211. Waist hole; 1212. Raised portion; 1213. Limiting column; 1214. Extrusion portion; 122. Vertical column; 123. Accommodating cavity; 124. First groove; 125. Second groove; 126. Second limiting groove; 127. Limiting hole; 128. Reset column; 13. First elastic member; 14. Positioning member; 141. First limiting groove;

[0031] 2. Lock tongue assembly; 21. Lock tongue seat; 22. Lock tongue member; 221. Reset groove; 23. Second elastic member. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0034] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0035] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0036] Combination Figure 1 to Figure 4 The embodiment of the utility model provides a lock transmission assembly, including: a buckle hand assembly 1 and a lock tongue assembly 2, the lock tongue assembly 2 is installed on the buckle hand assembly 1 and the lock tongue assembly 2 can slide along the direction of opening and closing the lock;

[0037] The buckle assembly 1 includes a buckle housing 11, a buckle member 12 and a first elastic member 13; the buckle member 12 is slidably mounted on the buckle housing 11 along the direction of opening and closing the lock and can be linked with the lock tongue assembly 2 to slide along the direction of opening and closing the lock, and the two ends of the first elastic member 13 are respectively connected to the buckle housing 11 and the buckle member 12;

[0038] A shift block 121 is slidably mounted on the buckle member 12 along a first direction. When the shift block 121 slides, it can contact or displace the buckle housing 11 in the switch lock direction to lock or unlock the buckle member 12.

[0039] In this embodiment, the sliding door and window include a movable leaf (not shown in the figure) and a fixed frame (not shown in the figure). The lock transmission assembly is fixedly installed on the movable leaf by screws, and a magnetic lock seat (not shown in the figure) is arranged on the fixed frame. When the sliding door and window need to be locked, the movable leaf is pushed to make the lock tongue assembly 2 approach the magnetic lock seat, and the lock seat makes the lock tongue assembly 2 slide along the locking direction and magnetically cooperate with the lock seat through the magnetic force, so that the lock tongue assembly 2 cooperates with the lock seat to lock, thereby realizing the automatic locking function of the sliding door and window (please refer to Figure 2 When the sliding door or window needs to be unlocked, the handle assembly 1 is operated to unlock along the opening direction of the switch lock, and the lock tongue assembly 2 is linked or semi-linked to slide along the opening direction of the switch lock to unlock, so that the lock tongue assembly 2 is separated from the lock seat (see Figure 3 Then push the movable fan away from the lock seat so that the lock tongue assembly 2 is not attracted by the lock seat, thereby realizing the unlocking function of the sliding door and window (see Figure 4 shown).

[0040] See also Figure 3 and Figure 4 As shown, specifically, when the buckle piece 12 is pressed, the buckle piece 12 compresses the first elastic piece 13 along the opening direction of the switch lock (i.e., the direction away from the lock seat). Since the first elastic piece 13 is located between the buckle piece 12 and the buckle housing 11, the first elastic piece 13 is squeezed and deformed. When the buckle piece 12 is not pressed by external force, the rebound force of the first elastic piece 13 causes the buckle piece 12 to slide in the closing direction of the switch lock, thereby realizing the automatic resetting function of the buckle piece 12.

[0041] More specifically, when the lock tongue assembly 2 cooperates with the lock seat to realize the locking function of the sliding door and window, the dial block 121 is moved to slide along the first direction, so that the dial block 121 can be in conflict with the buckle shell 11; when the dial block 121 conflicts with the buckle shell 11, the dial block 121 prevents the buckle member 12 from pressing, so that the buckle member 12 cannot compress the first elastic member 13 in the direction of the buckle shell 11, thereby realizing the child safety lock function of the buckle assembly 1, realizing safety protection, and ensuring the safety of the sliding door and window after locking; when the sliding door and window needs to be unlocked, the dial block 121 needs to be slid along the first direction, and the dial block 121 can also be misaligned with the buckle shell 11, thereby releasing the restriction of the dial block 121 on the pressing of the buckle member 12, so that the buckle member 12 can compress the first elastic member 13 in the direction of the buckle shell 11.

[0042] In this embodiment, the first direction is a direction perpendicular to the switch lock direction; the first elastic member 13 can be a spring, a compression spring or a spring, and in this embodiment, it is preferably a spring.

[0043] In this embodiment, the automatic resetting function and the child safety locking function of the handle member 12 can be achieved by using only one first elastic member 13, thereby greatly simplifying the internal installation structure of the lock transmission assembly and reducing the cumbersome steps of the assembly process.

[0044] See also Figure 5 and Figure 6 As shown, in one embodiment, the handle assembly 1 also includes a positioning member 14. When the shift block 121 slides to a first position along a first direction, the shift block 121 and the positioning member 14 are misaligned in the switch lock direction. When the shift block 121 slides to a second position, the shift block 121 and the positioning member 14 conflict in the switch lock direction.

[0045] In this embodiment, the positioning member 14 is a positioning block disposed in the buckle housing 11. When the shift block 121 slides to the first position along the first direction, the shift block 121 and the positioning member 14 are mutually offset in the unlocking direction of the switch lock. At this time, the buckle member 12 can slide in the opening direction of the switch lock and compress the first elastic member 13 to achieve unlocking. Among them, the buckle member 12 is provided with a receiving cavity 123, the shift block 121 is located in the receiving cavity 123, and the positioning member 14 corresponds to the receiving cavity 123. When the buckle member 12 slides in the opening direction of the switch lock, the buckle member 12 and the positioning member 14 avoid each other.

[0046] In this embodiment, when the shift block 121 slides to the second position, the shift block 121 and the positioning member 14 conflict with each other, and the buckle member 12 is restricted by the shift block 121 in the unlocking direction of the switch lock, so it cannot slide in the unlocking direction of the switch lock and compress the first elastic member 13, thereby realizing the function of the child safety lock of the buckle assembly 1 and ensuring the safety of the sliding doors and windows after being locked.

[0047] In one embodiment, a column 122 is provided on the buckle member 12 , a first limiting groove 141 is provided on the positioning member 14 , one end of the first elastic member 13 is sleeved on the column 122 , and the other end of the first elastic member 13 is installed in the first limiting groove 141 .

[0048] Regarding the location of the column 122, the present application has two methods, and one of the methods for setting the column 122 is now introduced:

[0049] In this embodiment, the column 122 is located in the accommodating cavity 123, and the diameter of the column 122 is adapted to the inner diameter of the spring so that one end of the spring can be stably mounted on the column 122, and the other end of the spring is limited in the first limiting groove 141, and the diameter of the first limiting groove 141 is adapted to the outer diameter of the spring so as to improve the stability of the installation of the other end of the spring; by arranging the spring in this way, when the buckle member 12 slides toward the buckle housing 11 and compresses the spring, the stability of the buckle member 12 compressing the spring can be further improved to prevent the spring from being deflected.

[0050] In one embodiment, a waist hole 1211 is formed on the shifting block 121 along the first direction, and the column 122 passes through the waist hole 1211 .

[0051] In this embodiment, the shift block 121 is in a "T" shape, and the waist hole 1211 is opened on the side of the shift block 121 facing the locking direction of the switch lock. The diameter of the waist hole 1211 is larger than the diameter of the column 122, so that there is a gap between the column 122 and the waist hole 1211. When the shift block 121 slides along the first direction, the gap provides the shift block 121 with sufficient sliding space to meet the switching of the shift block 121 from the first position to the second position.

[0052] In one embodiment, one end of the first elastic member 13 abuts against the shifting block 121 , and the shifting block 121 abuts against the buckle member 12 .

[0053] In this embodiment, the column 122 passes through the waist hole 1211, and one end of the first elastic member 13 is sleeved on the portion of the column 122 passing through the waist hole 1211 and abuts against the shift block 121. Through such a configuration, the elastic force of the first elastic member 13 squeezes the shift block 121 and the buckle member 12. When the shift block 121 slides along the first direction, the elastic force of the first elastic member 13 can provide a slight resistance to the shift block 121, thereby improving the feel when the shift block 121 is moved.

[0054] See also Figure 7 As shown, the second method of setting the column 122 is now introduced:

[0055] In one embodiment, a second limiting groove 126 and a column 122 located in the second limiting groove 126 are provided on the buckle member 12 , one end of the first elastic member 13 is sleeved on the column 122 , and the other end of the first elastic member 13 abuts against the buckle housing 11 .

[0056] In this embodiment, the elastic sleeve is arranged on the column 122 located in the second limiting groove 126. Compared with the first method in which the column 122 is arranged in the accommodating cavity 123, the second method in which the column 122 is arranged enables the first elastic member 13 to be moved out of the accommodating cavity 123, and then the first elastic member 13 is installed in the second limiting groove 126. When the first elastic member 13 is compressed, the first elastic member 13 is limited by the second limiting groove 126 to avoid skew displacement. Among them, the working state of the buckle member 12 compressing the first elastic member 13 toward the buckle housing 11 is the same, and it is not repeated here.

[0057] Among them, for the second way of setting the column 122, the material of the shift block 121 can be a tough material, and an extrusion portion 1214 is provided on the side of the shift block 121 facing the locking direction of the switch lock. When the shift block 121 slides along the first direction, the extrusion portion 1214 can squeeze the buckle piece 12 (that is, the inner wall of the accommodating cavity 123), thereby increasing the friction force of the shift block 121 when sliding, and improving the user's feel when shifting the shift block 121.

[0058] like Figure 8 As shown, in one embodiment, one end of the shift block 121 facing the locking direction of the switch lock is exposed outside the buckle member 12, and the other end of the shift block 121 facing the unlocking direction of the switch lock is located inside the buckle member 12.

[0059] In this embodiment, an opening is provided on the buckle piece 12, and the shift block 121 is slidably assembled in the opening. One end of the shift block 121 facing the locking direction of the switch lock is exposed from the buckle piece 12 through the opening. When it is necessary to shift the shift block 121, the exposed part of the shift block 121 can push the shift block 121 to slide, which is beneficial to improve the operability of shifting the shift block 121.

[0060] Among them, the end of the shift block 121 exposed from the opening is also provided with anti-slip grooves. When the shift block 121 is shifted, the anti-slip grooves can increase the friction with the shift block 121, making it easier for the user to shift the shift block 121.

[0061] In this embodiment, one end of the shift block 121 facing the unlocking direction of the switch lock is located in the accommodating cavity 123 of the buckle member 12. When the shift block 121 is pushed to slide, the one end of the shift block 121 facing the unlocking direction of the switch lock can conflict with or be misaligned with the positioning member 14 in the direction of the switch lock. When the shift block 121 conflicts with the positioning member 14, the buckle member 12 cannot slide. When the shift block 121 is misaligned with the positioning member 14, the buckle member 12 can slide, thereby realizing the locking function of the buckle member 12.

[0062] In a more specific embodiment, a limiting column 1213 is provided on one end of the shift block 121 facing the unlocking direction of the switch lock, and a limiting hole 127 is provided at the position of the limiting column 1213 corresponding to the buckle member 12, and the limiting column 1213 is inserted into the limiting hole 127. When the shift block 121 slides along the first direction, the limiting column 1213 follows the sliding in the limiting hole 127; by such a setting, the stability of the shift block 121 when sliding can be improved.

[0063] See also Figure 5 to Figure 7 As shown, in one embodiment, a buckle structure is provided between the handle 12 and the shift block 121. When the shift block 121 slides along the first direction, the shift block 121 is limited to the first position or the second position by the buckle structure.

[0064] In this embodiment, the buckle structure includes a protrusion 1212 and a groove corresponding to the protrusion 1212. Since this embodiment has a first position and a second position, two grooves are provided, and the two grooves correspond to the first position and the second position respectively. The protrusion 1212 can be buckled in any of the grooves to achieve the limiting of the buckle 12 and the shift block 121 in the first position and the second position. It should be noted that the protrusion 1212 can be set on the shift block 121, and the two grooves can be provided on the buckle 12, or the protrusion 1212 can be set on the buckle 12, and the two grooves can be provided on the shift block 121, that is, the positions of the protrusion 1212 and the two grooves can be interchanged, and this embodiment does not limit the setting positions of the protrusion 1212 and the two grooves.

[0065] The following description will be made by taking the example that the protrusion 1212 is provided on the shift block 121 and the two grooves are provided on the buckle member 12:

[0066] In this embodiment, a first groove 124 and a second groove 125 are provided in the buckle member 12, and a protrusion 1212 is provided on the shift block 121. When the shift block 121 slides to the first position, the protrusion 1212 is engaged in the first groove 124, and when the shift block 121 slides to the second position, the protrusion 1212 is engaged in the second groove 125.

[0067] The first groove 124 or the second groove 125 has a limiting effect on the shift block 121. The position of the first groove 124 corresponds to the first position of the shift block 121. The shift block 121 is fixed in the first position by the projection 1212 being engaged in the first groove 124, ensuring that the shift block 121 does not shift, thereby ensuring that the shift block 121 and the positioning member 14 are misaligned with each other, which is conducive to the buckle member 12 smoothly compressing the first elastic member 13 toward the buckle housing 11; the position of the second groove 125 corresponds to the second position of the shift block 121. The second groove 125 is engaged in the second groove 125 by the projection 1212, ensuring that the shift block 121 is fixed in the second position, ensuring that the shift block 121 does not shift, thereby ensuring that the shift block 121 and the positioning member 14 are in conflict with each other, which is conducive to ensuring that the buckle member 12 is always locked and cannot slide, thereby ensuring the safety of the sliding door and window after locking.

[0068] See also Figure 2 to Figure 4 As shown, in one embodiment, the lock tongue assembly 2 includes a lock tongue seat 21, a lock tongue piece 22 and a second elastic piece 23. The lock tongue seat 21 is fixedly mounted on the buckle housing 11. The lock tongue piece 22 is slidably mounted on the lock tongue seat 21 along the direction of opening and closing the lock and can extend or retract the lock tongue seat 21. The two ends of the second elastic piece 23 are respectively connected to the lock tongue seat 21 and the lock tongue piece 22.

[0069] In this embodiment, when the sliding door needs to be locked, the lock seat sucks the lock tongue piece 22 out of the lock tongue seat 21 by pushing the movable leaf close to the lock seat, so that the lock tongue piece 22 cooperates with the lock seat to lock the sliding door and window; wherein, while the lock tongue piece 22 is sucked out, the second elastic piece 23 connected to the lock tongue piece 22 is driven to extend by the lock tongue piece 22, and when the lock tongue piece 22 is driven by the buckle piece 12 and breaks away from the magnetic attraction of the lock seat, the rebound force of the second elastic piece 23 drives the lock tongue piece 22 to retract into the lock tongue seat 21, thereby realizing the resetting of the lock tongue piece 22.

[0070] See also Fig. 9 As shown, in one embodiment, a reset column 128 is provided on the buckle piece 12 , and a reset groove 221 is provided on the lock tongue assembly 2 along the opening and closing direction. The reset column 128 penetrates into the reset groove 221 to link the lock tongue assembly 2 through the buckle piece 12 .

[0071] In this embodiment, the reset groove 221 is a waist groove and its length direction is parallel to the direction of the switch lock, and can be specifically opened on the lock tongue piece 22; when the buckle piece 12 slides along the unlocking direction of the switch lock, the reset column 128 moves in the reset groove 221 of the lock tongue piece 22 along the unlocking direction of the switch lock. When the reset column 128 moves to the reset groove 221 at one end of the unlocking direction of the switch lock, the reset column 128 can be against the lock tongue piece 22. The reset column 128 continues to move along the unlocking direction of the switch lock, driving the lock tongue piece 22 to slide in the lock tongue seat 21, thereby realizing that the reset column 128 drives the lock tongue piece 22 to separate from the lock seat.

[0072] The embodiment of the utility model further provides a sliding door and window, which includes the lock transmission assembly as described above.

[0073] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the utility model, and these modifications or replacements should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A lock transmission assembly, characterized in that: include: A buckle handle assembly and a lock tongue assembly, wherein the lock tongue assembly is mounted on the buckle handle assembly and the lock tongue assembly can slide along the direction of opening and closing the lock; The buckle assembly includes a buckle housing, a buckle piece and a first elastic piece; the buckle piece is slidably mounted on the buckle housing along the direction of the switch lock and can be linked with the lock tongue assembly to slide along the opening direction of the switch lock, and the two ends of the first elastic piece are respectively connected to the buckle housing and the buckle piece; A shift block is mounted on the buckle member for sliding along a first direction. When the shift block slides, it can contact or displace the buckle housing in the direction of the switch lock to lock or unlock the buckle member.

2. The lock transmission assembly according to claim 1, characterized in that: The handle assembly also includes a positioning member. When the shift block slides to a first position along a first direction, the shift block and the positioning member are misaligned in the switch lock direction. When the shift block slides to a second position, the shift block and the positioning member conflict in the switch lock direction.

3. The lock transmission assembly according to claim 2, characterized in that: The buckle member is provided with a column, the positioning member is provided with a first limiting groove, one end of the first elastic member is sleeved on the column, and the other end of the first elastic member is installed in the first limiting groove.

4. The lock transmission assembly according to claim 3, characterized in that: The shift block is provided with a waist hole along the first direction, and the upright column passes through the waist hole.

5. The lock transmission assembly according to claim 4, characterized in that: One end of the first elastic member abuts against the shifting block, and the shifting block abuts against the buckle member.

6. The lock transmission assembly according to claim 1, characterized in that: The buckle member is provided with a second limiting groove and a column located in the second limiting groove, one end of the first elastic member is sleeved on the column, and the other end of the first elastic member abuts against the buckle housing.

7. The lock transmission assembly according to claim 1, characterized in that: One end of the shift block facing the locking direction of the switch lock is exposed outside the buckle handle, and one end of the shift block facing the unlocking direction of the switch lock is located inside the buckle handle.

8. The lock transmission assembly according to claim 2, characterized in that: A buckle structure is provided between the buckle member and the shift block. When the shift block slides along a first direction, the shift block is limited to a first position or a second position by the buckle structure.

9. The lock transmission assembly according to claim 1, characterized in that: The lock tongue assembly includes a lock tongue seat, a lock tongue piece and a second elastic piece. The lock tongue seat is fixedly mounted on the buckle housing. The lock tongue piece is slidably mounted on the lock tongue seat along the direction of opening and closing the lock and can extend or retract the lock tongue seat. The two ends of the second elastic piece are respectively connected to the lock tongue seat and the lock tongue piece.

10. The lock transmission assembly according to claim 1, characterized in that: The buckle handle is provided with a reset column, and the lock tongue assembly is provided with a reset groove along the direction of opening and closing the lock. The reset column penetrates into the reset groove to link the lock tongue assembly through the buckle handle.

11. A sliding door and window, characterized in that: It comprises a lock transmission assembly as described in any one of claims 1 to 10 above.

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