Lock body assembly for sliding door and window and sliding door and window

Abstract

The invention discloses a lock body assembly for a sliding door and window and the sliding door and window. The lock body assembly comprises a fixed lock body and a movable lock body, and a plug pin connecting base is arranged on the side, away from the fixed lock body, of the movable lock body; the up-down lock comprises a transmission gear arranged in the mounting seat, and a rotating shaft of the handle is in transmission connection with the transmission gear; the synchronous rack comprises a first rack and a second rack, the linkage rod comprises a first linkage rod and a second linkage rod, the first rack and the second rack are arranged on the two sides of the transmission gear respectively, the first rack extends upwards to be connected with the first linkage rod, and the second rack extends downwards to be connected with the second linkage rod. Locking bolts are respectively arranged at the end parts of the first linkage rod and the second linkage rod; the locking bolt is connected with the bolt connecting seat; according to the invention, high integration and linkage operation of horizontal and vertical locking are realized, the use convenience and safety are greatly improved, the structural design is compact and reasonable, and modular integration and high compatibility are realized.

Description

Technical Field

[0001] This invention relates to the field of sliding doors and windows, and particularly to a lock body assembly for sliding doors and windows and a sliding door and window. Background Technology

[0002] PT doors (hinged revolving doors), as an innovative door and window product integrating the space-saving advantages of traditional sliding doors and the excellent sealing performance of hinged doors, have been gradually applied in the high-end building sector. Their core function lies in the fact that the door leaf can be pushed and pulled along a track, opened inwards or outwards as a hinged door, and can also be fully rotated open to achieve maximum ventilation and passage. The key to achieving this multi-functional switching lies in a specially designed locking system. This system typically includes a movable lock body installed on a moving track and a fixed lock body installed on a fixed track. By driving the bolt in the movable lock body to compress or disengage from the latch on the fixed lock body, the door leaf can be locked or unlocked horizontally in the hinged position, thus allowing the door leaf to open or rotate as a whole after unlocking.

[0003] However, existing PT door lock systems primarily focus on horizontal locking and unlocking (i.e., the width of the door leaf) to meet the switching requirements between swing and rotating functions. As users increasingly demand higher levels of overall security, wind pressure resistance, and airtightness from doors and windows, horizontal locking alone is no longer sufficient. Modern high-performance doors and windows generally require effective locking at the top and bottom of the door leaf as well, forming a fully enclosed frame that significantly improves overall rigidity, security, and sealing performance.

[0004] Currently, achieving synchronized locking on PT doors presents significant challenges. One common approach is to install a completely independent locking system on the door leaf. However, this results in two separate locking mechanisms (horizontal lock body and upper / lower locks) operating independently. Users must operate two different handles to complete the locking process, which is cumbersome, prone to omissions, and provides a poor user experience. Another attempt involves roughly fixing the transmission components of the upper / lower locks, such as the linkage rod, to the door leaf using external brackets or complex connectors. However, this "grafting" method is structurally bulky, space-consuming, difficult to install, and prone to interference with the moving parts of the PT door lock body itself, affecting the smoothness of the swing or rotation functions and resulting in low reliability. More importantly, traditional PT door movable lock bodies were not designed with an integrated installation interface and power transmission path for the linkage mechanism of the upper and lower locks, making true structural integration and operational synchronization difficult.

[0005] Therefore, there is an urgent need in this field for an innovative lock body component design that can organically integrate the inherent horizontal lock body of the PT door with a high-efficiency vertical synchronous locking mechanism, so that it retains the core functions of swing and rotation, and can achieve simultaneous locking in the horizontal and vertical directions through a single operation, thereby achieving comprehensive optimization in terms of structure, function and user experience. Summary of the Invention

[0006] To achieve the above objectives, the inventor provides a lock body assembly for sliding doors and windows, comprising: The fixed lock body is fixed on the fixed track, with one end tightly connected to the fixed track and the other end cooperating with the movable lock body; The movable lock body is fixed on the moving track, with one end tightly connected to the moving track and the other end cooperating with the fixed lock body; the movable lock body has a pin connecting seat on the side away from the fixed lock body. The upper and lower locks include a handle, mounting base, transmission gear, synchronous rack and pinion, and linkage rod; The transmission gear is located inside the mounting base, and the handle's rotating shaft is connected to the transmission gear. The synchronous rack includes a first rack and a second rack, and the connecting rod includes a first connecting rod and a second connecting rod. The first rack and the second rack are respectively disposed on both sides of the transmission gear. The first rack extends upward and connects to the first connecting rod, and the second rack extends downward and connects to the second connecting rod. The ends of the first connecting rod and the second connecting rod are respectively provided with locking pins; the locking pins are connected to the pin connecting seat.

[0007] In a preferred embodiment of the present invention, the cross-section of the mounting base is I-shaped, the transmission gear is located in the middle of the I-shaped mounting base, and the first rack and the second rack are respectively located in the slots on both sides of the I-shaped mounting base.

[0008] In a preferred embodiment of the present invention, the first connecting rod and the second connecting rod are on the same vertical line, and the top of the first rack or the bottom of the second rack is provided with a bent portion, the tail end of which is connected to the first connecting rod or the second connecting rod.

[0009] As a preferred embodiment of the present invention, it further includes a latch base, which is disposed in the door frame or wall of a sliding door or window. The latch base is provided with a hole corresponding to the locking latch, and a latch base bearing is provided on one side of the hole.

[0010] In a preferred embodiment of the present invention, the pin connector and the movable lock body are integrally formed.

[0011] In a preferred embodiment of the present invention, the movable lock body is provided with a pin connection groove on the side away from the fixed lock body, and the pin connection seat is fixedly disposed in the pin connection groove.

[0012] In a preferred embodiment of the present invention, the pin connector is provided with a pin through hole, and the movable lock body located at the pin through hole is provided with an opening.

[0013] In a preferred embodiment of the present invention, the movable lock body is provided with a sliding bolt and a roller track. The telescopic end of the sliding bolt extends telescopically into the roller track. The number of roller tracks is N, where N is an integer and N≥2. The sliding bolt is provided with an extension portion, which extends telescopically into the 2nd, 3rd, 4th...Nth roller track away from the sliding bolt. In a preferred embodiment of the present invention, the extension is provided with a guide groove, and a matching guide post is fixedly provided on the movable lock body on one side of the guide groove.

[0014] To achieve the above objectives, the inventors also provide a sliding door / window, comprising: a door frame and a lock body assembly for sliding doors / windows as described in any of the above inventions. The door frame has a guide hole, the first connecting rod and the second connecting rod are disposed in the guide hole and extend along the guide hole to the top and bottom of the door frame, the handle is fixedly connected to the door frame, the mounting base is disposed in the guide hole, and the pivot of the handle extends into the guide hole and connects with the transmission gear in the mounting base.

[0015] Unlike existing technologies, the above technical solution achieves the following beneficial effects: (1) It achieves a high degree of integration and linkage operation of horizontal and vertical locking, greatly improving the convenience and security of use. This invention creatively connects the output end of the upper and lower locks directly with the movable lock body dedicated to PT doors. By setting a pin connecting seat on the movable lock body, the locking pins of the upper and lower locks can form a stable positional association with the movable lock body through the pin connecting seat. Users only need to operate one handle. Its rotational movement drives the upper and lower linkage rods and pins through a gear and rack mechanism to achieve synchronous extension and retraction of the top and bottom. On the other hand, the handle can also directly or indirectly drive the movable lock body and the fixed lock body to lock or release horizontally. In addition, linking the movable lock body with the upper and lower locks can effectively ensure that the door can be rotated and opened only after the upper and lower locks are unlocked. By linking the unlocking sequence, the lock body structure is protected, and accidental pulling is avoided, which would affect the lifespan of the lock body. Furthermore, the handle can be used to unlock the upper and lower locks and push and pull the door, which can effectively improve the unlocking and locking efficiency, completely avoid the cumbersome operation of using two independent locks, significantly improve the user experience, and ensure that the door and window can quickly form a solid full-frame lock when closed, fundamentally enhancing security and sealing.

[0016] (2) A highly efficient and stable gear and rack transmission is adopted to ensure precise synchronization and reliable operation of the upper and lower locks. The core transmission of the upper and lower locks adopts a structure in which the transmission gear meshes with the first and second racks located on both sides. This design accurately converts the rotational motion input by the handle into linear motion in opposite directions of the two racks, thereby driving the first and second connecting rods to synchronously and equidistantly extend or retract the locking pins at the top and bottom. The "I"-shaped mounting base provides a stable and centered mounting environment for the gears and racks, preventing jamming or wear caused by uneven load. This transmission method has high force transmission efficiency, precise motion trajectory, and rapid response, ensuring a high degree of consistency in the action of the upper and lower lock points, and overcoming the problems of asynchrony, misalignment, and lag that are prone to occur in complex linkage mechanisms.

[0017] (3) The structure is compact and reasonable, achieving modular integration and high compatibility. The bolt connecting seat and the movable lock body are designed as an integral part or fixed through the bolt connecting groove, so that the upper and lower locking mechanism and the PT door lock body are deeply integrated in terms of physical structure and function. The structure is compact, does not occupy extra space, and maintains the original appearance and movement characteristics of the PT door system. The movable lock body adopts a sliding bolt with multiple roller tracks, and multi-point locking is achieved through the extension, which enhances the stability and shear resistance of horizontal locking. In addition, multiple roller tracks can be set with multiple door leaves, and the extension effectively solves the locking and opening of other roller tracks. The guide groove and guide post on the extension further ensure the smooth and precise movement of the sliding bolt. These settings enable the lock body component to be easily upgraded and integrated with upper and lower locking functions without changing the basic structure of the PT door, with strong compatibility.

[0018] (4) Easy to install, convenient to adjust and maintain, and highly reliable for long-term use. The entire system layout is clear, with the linkage rod set in the guide hole of the door frame and the wiring is neat. The design of the pin base and its internal bearings makes the locking pin have low friction, smooth feel and accurate positioning during insertion and removal. The modular design facilitates assembly and debugging on the production line, and also facilitates later maintenance and component replacement.

[0019] (5) Significantly improves the overall performance of sliding doors and windows (especially PT doors). Sliding doors and windows using this lock body component retain flexible opening methods such as casement and rotation, while gaining unprecedented all-around locking capability. This greatly enhances the overall rigidity, wind pressure resistance, airtightness and watertightness, and anti-theft security of doors and windows, meeting the stringent requirements of high-end building doors and windows for both performance and convenience. Attached Figure Description

[0020] Figure 1 Schematic diagram of the lock body assembly for sliding doors and windows as described in the specific implementation method Figure 1 ; Figure 2Schematic diagram of the lock body assembly for sliding doors and windows as described in the specific implementation method Figure 2 ; Figure 3 Schematic diagram of the upper and lower locking structure for a specific implementation Figure 1 ; Figure 4 Schematic diagram of the upper and lower locking structure for a specific implementation Figure 2 ; Figure 5 This is a schematic diagram of the synchronous gear and synchronous rack structure described in a specific embodiment; Figure 6 This is a schematic diagram of the pin base structure described in a specific embodiment; Figure 7 This is a schematic diagram of the pin connector structure described in the specific implementation embodiment; Figure 8 This is a schematic diagram of the sliding latch structure described in a specific embodiment; Figure 9 An exploded view of the movable lock body as described in the specific implementation embodiment; Figure 10 This is a schematic diagram of the positioning rod groove structure described in a specific embodiment; Figure 11 This is a schematic diagram of the sliding door and window structure described in the specific implementation method; Figure 12 This is a partial structural diagram of the sliding door and window described in a specific embodiment.

[0021] Explanation of reference numerals in the attached figures: 101. Handle; 102. Mounting base; 103. Slot; 104. Transmission gear; 105. Gear insertion hole; 106. First rack; 107. Second rack; 108. First connecting rod; 109. Second connecting rod; 110. Bend; 111. Locking pin; 112. Pin base; 113. Insertion hole; 114. Pin base bearing; 201. Door frame; 202. Guide hole; 203. Moving track; 204. Fixed track; 2 05. Bolt connector; 206. Bolt through hole; 207. Fixed lock body; 208. Movable lock body; 209. Door frame; 210. Bolt connecting groove; 211. Opening; 212. Sliding bolt; 213. Extension; 214. Hanger slide rail; 215. Guide groove; 216. Guide post; 217. Positioning rod groove; 218. Positioning rod; 219. Positioning slider groove; 220. Positioning slider; 221. Touching branch; 222. Touched branch. Detailed Implementation

[0022] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0023] like Figures 1 to 10 As shown, this embodiment provides a lock body assembly for sliding doors and windows, mainly used in PT doors (hinged revolving doors), which aims to achieve horizontal locking of the door leaf and synchronous vertical locking of the top and bottom through linkage operation.

[0024] The lock body assembly mainly consists of three parts: a fixed lock body 207, a movable lock body 208, and upper and lower locks. The fixed lock body 207 is fixed to the fixed track 204 by screws or snap-fit, one end of which is tightly connected to the end of the fixed track 204, and the other end is provided with a latch or mating surface for locking with the movable lock body 208.

[0025] The movable lock body 208 is fixed on the moving track 203. One end of the movable lock body 208 is tightly engaged with the moving track 203, and the other end is provided with a sliding bolt 212 corresponding to the fixed lock body 207. When the sliding bolt 212 extends, it can be inserted into the roller track 214 of the fixed lock body 207 to lock the door in the horizontal direction and prevent the door from sliding out of the roller track 214. After locking, the door can be rotated to open. When it retracts, it unlocks the door, allowing it to open horizontally, but it cannot be rotated to open.

[0026] The innovation of this embodiment lies in the integral molding of the movable lock body 208 on the side away from the fixed lock body 207 (i.e., the side facing away from the mating surface). This not only simplifies the number of parts and reduces assembly complexity but also enhances the structural strength and integrity of the connection part; or a pin connecting seat 205 is fixedly provided. This allows for linkage and cooperation with the upper and lower locks, enabling the locking pins 111 of the upper and lower locks to form a stable power connection or positional association with the movable lock body 208 through the connecting seat. Users only need to operate one handle 101. Its rotational movement drives the upper and lower linkage rods and the pin through a gear and rack mechanism to achieve synchronous extension and retraction of the top and bottom. On the other hand, the handle 101 can also directly or indirectly drive the movable lock body 208 and the fixed lock body 207 to lock or release in the horizontal direction. In addition, by linking the movable lock body 208 with the upper and lower locks, it can be effectively ensured that the lock can only be rotated open after the upper and lower locks are unlocked. By linking the unlocking sequence, the lock body structure is protected and accidental pulling is avoided, which would affect the service life of the lock body. Furthermore, the handle 101 can be used to unlock the upper and lower locks and push and pull the door leaf, which can effectively improve the unlocking and locking efficiency, completely avoid the cumbersome operation of using two sets of independent locks, significantly improve the user experience, and ensure that the door and window can quickly form a solid full-frame lock when closed, fundamentally enhancing security and sealing.

[0027] Furthermore, in some embodiments, such as Figure 7 and Figure 8As shown, in order to allow the pin connector 205 to reserve a position for installing the locking pin 111 or the connecting rod, in this embodiment, the pin connector 205 is provided with a pin through hole 206, and the movable lock body 208 located at the pin through hole 206 is provided with an opening 211 for the locking pin 111 to pass through.

[0028] In different embodiments, such as Figure 8 and Figure 9 As shown, a pin connection groove 210 can also be machined on this side of the movable lock body 208, and then the independent pin connection seat 205 can be fixed in the groove by screws or buckles to achieve the same function.

[0029] To enhance the stability and shear resistance of the horizontal locking mechanism, and to achieve locking of multiple roller tracks, the number of roller tracks 214 is N, where N is an integer and N≥2. The sliding latch 212 is provided with an extension 213, which can extend telescopically into the 2nd, 3rd, 4th...Nth roller tracks 214 away from the sliding latch 212. For example, when N is 2, meaning there are two roller tracks 214, the first roller track 214 closest to the sliding latch 212 is locked and opened by the retractable control of the sliding latch 212, while the second roller track 214 is locked and opened by the retractable control of the extension 213. When N is 3, meaning there are three roller tracks 214, the first roller track 214 closest to the sliding latch 212 is locked and opened by the retractable control of the sliding latch 212, while the second and third roller tracks 214 are locked and opened by the retractable control of the extension 213. The extension 213 can be one or more. This embodiment abandons the limited structure of a single sliding latch 212 and adopts an enhanced design that combines the sliding latch 212 with multiple roller tracks 214. The telescopic end of the sliding latch 212 can extend into the roller slide 214. In particular, by providing the extension 213, it can be inserted into multiple roller slides 214 simultaneously, transforming the traditional single-point locking into distributed locking. This improves the stability of the multi-track locking and the reliability of long-term use.

[0030] like Figure 8 and Figure 9 As shown, in order to limit the movement direction of the extension 213, in this embodiment, the extension 213 is provided with a guide groove 215, and a matching guide post 216 is fixedly provided on the movable lock body 208 on one side of the guide groove 215. In this embodiment, the guide groove 215 is provided on the extension 213 and cooperates with the guide post 216 on the movable lock body 208 to provide precise linear guidance for the movement of the sliding bolt 212, effectively preventing it from swaying or jamming during extension and retraction, and ensuring smooth and consistent operation.

[0031] like Figures 1 to 6As shown, the upper and lower locks are integrated within the door frame 201, and their core function is to convert a rotary input into two linear outputs in opposite directions. The mechanism includes a handle 101, which serves as a user operating element and is mounted on the exterior of the door frame 201.

[0032] Mounting base 102: Fixed in the guide hole 202 inside the door frame 201. In this embodiment, the cross-section of the mounting base 102 is preferably "I" shaped, with a receiving space in the middle and vertical slots 103 on both sides.

[0033] Transmission gear 104: Located in the central receiving space of the "I"-shaped mounting base 102. The rotating shaft of the handle 101 extends through the door frame 201 into the guide hole 202, and its end engages with the gear insertion hole 105 at the shaft of the transmission gear 104 via a coupling or directly via a gear pin to achieve transmission connection.

[0034] Synchronous racks: including a first rack 106 and a second rack 107. They are respectively set in the slots 103 on both sides of the "I"-shaped mounting base 102 and mesh with the transmission gear 104 simultaneously. Since the gear is located in the middle, when the gear rotates clockwise or counterclockwise, the two racks will perform linear motion in opposite directions (one up and one down).

[0035] Linkage rods: including a first linkage rod 108 and a second linkage rod 109. The top of the first rack 106 extends upward and connects to the first linkage rod 108; similarly, the bottom of the second rack 107 extends downward and connects to the second linkage rod 109. To ensure that the two linkage rods are on the same vertical line, in this embodiment, the bottom of the second rack 107 extends downward and connects to the second linkage rod 109 through a bend 110, and extends upward and downward respectively along the guide hole 202 in the door frame 201.

[0036] Locking pin 111: Locking pins 111 are provided at the top of the first linkage 108 and the bottom of the second linkage 109 respectively.

[0037] Linkage and Integration: The most important feature of this invention lies in the connection between the locking pin 111 and the pin connecting seat 205 on the movable lock body 208. Specifically, the top and bottom locking pins 111 are linked with the pin connecting seat 205 through a linkage mechanism.

[0038] Auxiliary Structure: To optimize the user experience, in some embodiments, a pin base 112 is provided on the door frame 209 or wall at the positions corresponding to the top and bottom locking pins 111. The pin base 112 has a socket 113 that precisely corresponds to the locking pin 111. A pin base bearing 114 is embedded on the inner side of the socket. When the locking pin 111 is inserted or pulled out, the bearing can significantly reduce friction, making the operation smoother and improving the positioning accuracy.

[0039] like Figure 8 , Figure 9 and Figure 10 As shown, in some embodiments, to achieve locking of the movable lock body 208 and the fixed lock body 207 in the vertical direction on the same horizontal plane, the movable lock body 208 or the fixed lock body 207 is provided with a positioning rod groove 217, and the fixed lock body 207 or the movable lock body 208 is provided with a matching positioning rod 218. In different embodiments, to achieve simultaneous locking of the movable lock body 208 and the fixed lock body 207 in the vertical and horizontal directions on the same horizontal plane, the movable lock body 208 or the fixed lock body 207 is provided with a positioning slider groove 219, and a positioning slider 220 is provided in the positioning rod groove 217 of the movable lock body 208 or the fixed lock body 207. The positioning slider 220 is located in the positioning slider groove 219 by a return spring; that is, through the joint cooperation of the positioning rod groove 217, the positioning rod 218, the positioning slider 220 and the positioning slider groove 219, the two lock bodies are simultaneously locked in the horizontal and vertical directions.

[0040] In this embodiment, the movable lock body 208 is provided with a positioning rod groove 217, and the fixed lock body 207 is provided with a matching positioning rod. One side of the sliding bolt 212 is provided with a contact branch 222 extending into the positioning rod groove 217. The fixed lock body 207 at the front end of the positioning rod is provided with a contact branch 221, which abuts against the contact branch 222. The movable lock body 208 is provided with a positioning slider groove 219, and a positioning slider is provided within the positioning rod groove 217 of the movable lock body 208. The positioning slider is positioned within the positioning slider groove 219 by a return spring. This embodiment, through the abutting linkage between the contact branch on the fixed lock body 207 and the contact branch 222 on the sliding bolt 212 during the locking process, can automatically trigger or assist the final locking action of the bolt, improving the automation level of the operation and the certainty of the locking state. Furthermore, through the combined action of the positioning rod groove 217, the positioning rod, the positioning slider, and the positioning slider groove 219, the two lock bodies can be locked simultaneously in the horizontal and vertical directions.

[0041] like Figure 11 and Figure 12 As shown, this embodiment provides a sliding door / window that uses the lock assembly described in the above embodiment.

[0042] The sliding door and window includes a door frame 201. A guide hole 202 is pre-set vertically within the profile cavity of the door frame 201. The first connecting rod 108 and the second connecting rod 109 in the above embodiment are installed within the guide hole 202 and extend upwards and downwards respectively, ultimately protruding from the top and bottom of the door frame 201.

[0043] Mounting base 102 is fixed inside guide hole 202. Handle 101 is fixed to the outer side of door frame 201, and its shaft passes through the profile wall and enters guide hole 202, connecting with transmission gear 104 inside mounting base 102.

[0044] The movable lock body 208 is fixed on the moving track 203 at the bottom / top of the door frame 201. The locking pin 111 of the upper and lower locking mechanism and the pin connecting seat 205 on the back of the movable lock body 208 form the aforementioned linkage relationship.

[0045] When the user rotates handle 101, the power is transmitted synchronously to the locking pins 111 at the top and bottom through the gear and rack mechanism to unlock the door from the top and bottom. Only after unlocking can the door be rotated and opened. This sliding door and window perfectly retains the swing and rotation functions of the PT door, while greatly enhancing the overall safety, sealing and wind pressure resistance, and is extremely easy to operate.

[0046] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of the present invention, or equivalent structural or procedural transformations made using the content of the present invention's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of patent protection of the present invention.

Claims

1. A lock body assembly for sliding doors and windows, characterized in that, include: The fixed lock body is fixed on the fixed track, with one end tightly connected to the fixed track and the other end cooperating with the movable lock body; The movable lock body is fixed on the moving track, with one end tightly connected to the moving track and the other end cooperating with the fixed lock body; the movable lock body has a pin connecting seat on the side away from the fixed lock body. The upper and lower locks include a handle, mounting base, transmission gear, synchronous rack and pinion, and linkage rod; The transmission gear is located inside the mounting base, and the handle's rotating shaft is connected to the transmission gear. The synchronous rack includes a first rack and a second rack, and the connecting rod includes a first connecting rod and a second connecting rod. The first rack and the second rack are respectively disposed on both sides of the transmission gear. The first rack extends upward and connects to the first connecting rod, and the second rack extends downward and connects to the second connecting rod. The ends of the first connecting rod and the second connecting rod are respectively provided with locking pins; the locking pins are connected to the pin connecting seat.

2. The lock body assembly for sliding doors and windows according to claim 1, characterized in that: The mounting base has an "I" shaped cross-section, the transmission gear is located in the middle of the "I" shaped mounting base, and the first rack and the second rack are respectively located in the slots on both sides of the "I" shaped mounting base.

3. The lock body assembly for sliding doors and windows according to claim 1, characterized in that: The first connecting rod and the second connecting rod are on the same vertical line. The top of the first rack or the bottom of the second rack is provided with a bent part, and the tail end of the bent part is connected to the first connecting rod or the second connecting rod.

4. The lock body assembly for sliding doors and windows according to claim 1, characterized in that: It also includes a latch base, which is located in the door frame or wall of a sliding door or window. The latch base has a hole corresponding to the locking latch, and a latch base bearing is provided on one side of the hole.

5. The lock body assembly for sliding doors and windows according to claim 1, characterized in that: The pin connector and the movable lock body are integrally formed.

6. The lock body assembly for sliding doors and windows according to claim 1, characterized in that: The movable lock body has a pin connection groove on the side away from the fixed lock body, and the pin connection seat is fixedly installed in the pin connection groove.

7. The lock body assembly for sliding doors and windows according to claim 1, characterized in that: The pin connector is provided with a pin through hole, and the movable lock body located at the pin through hole is provided with an opening.

8. The lock body assembly for sliding doors and windows according to any one of claims 1 to 7, characterized in that: The movable lock body is provided with a sliding bolt and a roller track. The telescopic end of the sliding bolt can extend into the roller track. The number of roller tracks is N, where N is an integer and N≥2. The sliding bolt is provided with an extension part, which can extend into the 2nd, 3rd, 4th...Nth roller track away from the sliding bolt.

9. The lock body assembly for sliding doors and windows according to claim 8, characterized in that: The extension is provided with a guide groove, and a matching guide post is fixed on the movable lock body on one side of the guide groove.

10. A sliding door and window, characterized in that, include: The door frame and the lock body assembly for sliding doors and windows according to any one of claims 1 to 9, wherein the door frame is provided with a guide hole, the first connecting rod and the second connecting rod are disposed in the guide hole and extend along the guide hole to the top and bottom of the door frame, the handle is fixedly connected to the door frame, the mounting base is disposed in the guide hole, and the pivot of the handle extends into the guide hole and connects with the transmission gear in the mounting base.

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