Strip-shaped push-pull lock

Abstract

The utility model provides a strip-shaped push-pull lock, which comprises a shifting fork, a push-pull rod, a push-pull rod, a push-pull rod and a push-pull rod, the fixing strip is provided with a first strip-shaped hole and a bayonet, and the length of the first strip-shaped hole is larger than the size of the fork tongue in the first direction; the main shell is assembled to the fixing strip in a sliding mode, and a second strip-shaped hole is formed in the main shell; the first anti-theft block comprises a clamping block, and the first anti-theft block is assembled in the assembling groove of the fork tongue through an elastic piece; the front end of the fork tongue sequentially penetrates through the second strip-shaped hole and the first strip-shaped hole and then is inserted into an inner cavity of the fan-shaped profile, the first anti-theft block in the assembling groove is located between the main shell and the fixing strip, and in the process that the fork tongue moves from the head end position to the tail end position along with the main shell, the first anti-theft block is inserted into the inner cavity of the fan-shaped profile. The elastic piece pushes the clamping block to be clamped into the clamping opening of the fixing strip, and then the fork tongue is prevented from moving relative to the fixing strip. According to the utility model, when the lock cylinder is damaged, the strip-shaped push-pull lock can still be ensured to effectively lock the fan body.

Description

Technical Field

[0001] The utility model relates to the field of door and window locks, and more particularly to a strip-shaped push-pull lock. Background Art

[0002] Sliding locks are a crucial component of door and window systems. Currently, sliding locks installed on sliding doors can be categorized as either locks without a lock cylinder or locks with a lock cylinder. Locks without a lock cylinder typically lock by toggling a switch up and down or turning a handle. This structure is relatively simple, but the lock is not secure and can be easily damaged. Locks with a lock cylinder offer greater security, but damage to the lock cylinder often compromises the locking mechanism. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a new strip-shaped push-pull lock in view of the problem that the locking structure of the above-mentioned push-pull lock with a lock core will also be destroyed after the lock core is destroyed.

[0004] The technical solution of the present invention to solve the above technical problems is to provide a bar-shaped push-pull lock, comprising:

[0005] A shift fork, comprising a fork tongue having a mounting groove on a side surface thereof;

[0006] A fixing strip, configured to be assembled to the inner side surface of the fan profile along a first direction, the fixing strip having a first strip-shaped hole arranged along the first direction and a bayonet located on a side of the first strip-shaped hole, wherein the length of the first strip-shaped hole is greater than the dimension of the fork tongue in the first direction;

[0007] A main housing is slidably assembled to the fixing bar via a guide structure arranged along a first direction, and the main housing has a second bar-shaped hole adapted to fit the fork tongue;

[0008] A first anti-theft block, comprising a clamping block adapted to the bayonet, and the first anti-theft block is assembled in the assembly groove of the fork tongue through an elastic member;

[0009] The front end of the fork tongue passes through the second strip hole and the first strip hole in sequence along the second direction and is inserted into the inner cavity of the fan profile, and the first anti-theft block in the assembly groove is located between the main shell and the fixed bar, and in the process of the fork tongue following the main shell to move from the head end position to the tail end position, the elastic member pushes the card block to be stuck in the card slot of the fixed bar, thereby preventing the fork tongue from moving relative to the fixed bar.

[0010] As a further improvement of the present invention, the length of the second strip-shaped hole is greater than the dimension of the fork tongue in the first direction, and when the fork tongue is at the tail end position, there is a gap between the fork tongue and the tail end of the second strip-shaped hole;

[0011] The bar-shaped push-pull lock includes a second anti-theft block, which is assembled between the main shell and the fixed strip and fixed to the main shell. When the main shell pushes the fork tongue to move from the tail end position to the head end position, the second anti-theft block follows the movement of the main shell and pushes the block of the first anti-theft block away from the slot of the fixed strip.

[0012] As a further improvement of the present invention, the locking block includes a stop surface and a first slope surface, and the stop surface is used to prevent the fork tongue from moving relative to the fixed bar; the first slope surface faces the second anti-theft block, and at least a portion of the second anti-theft block is in contact with the first slope surface, and when the main shell pushes the fork tongue from the tail end position to the head end position, the second anti-theft block pushes the first slope surface so that the first anti-theft block overcomes the elastic force of the elastic member and retracts into the assembly groove to enable the locking block to leave the bayonet of the fixed bar.

[0013] As a further improvement of the present invention, the second anti-theft block includes a second slope, and the shape of the second slope is opposite to that of the first slope. When the main shell pushes the fork tongue to move from the tail end to the head end of the first bar hole, the second anti-theft block pushes the first slope through the second slope to make the blocking block leave the blocking hole of the fixing bar.

[0014] As a further improvement of the present invention, the strip-type push-pull lock also includes a transmission assembly, a lock core and an outdoor outer shell; the outdoor outer shell is installed on the outer side of the fan body profile along the first direction, and the outdoor outer shell has a lock hole; the lock core is installed on the inner side of the lock hole on the outdoor outer shell; the transmission assembly is installed to the fixed bar, and drives the main shell to move along the first direction under the drive of the lock core.

[0015] As a further improvement of the present invention, the transmission assembly includes a gear, and the gear is driven to rotate by the lock core; the main housing has a rack engaged with the gear, and the rack pushes the main housing to move along the first direction when the gear rotates.

[0016] As a further improvement of the present invention, the main shell includes a top plate, and the top plate of the main shell has a rectangular hole, and the rack is located on the side wall of the rectangular hole along the first direction; the transmission assembly includes a protective shell, the gear is located in the protective shell, and the gear and the protective shell are both embedded in the rectangular hole; silent blocks are respectively fixed at the two ends of the rectangular hole in the first direction.

[0017] As a further improvement of the present invention, the fixing strip includes a bottom plate attached to the surface of the fan body profile and two vertical plates respectively connected to the upper surface of the bottom plate vertically along the first direction, and the outer sides of the two vertical plates respectively have a first groove arranged along the first direction, and the bayonet is located on one of the vertical plates; the main shell includes a top plate and two side plates respectively connected to the lower surface of the top plate vertically along the first direction, and the inner sides of the two side plates respectively have a second groove arranged along the first direction; the main shell is installed to the fixing strip in a way that the two side plates are respectively located on the outer sides of the two vertical plates, the two second grooves are respectively opposite to the first grooves, and a ball rack including a plurality of balls is installed between each second groove and the first groove.

[0018] As a further improvement of the present invention, the strip-shaped push-pull lock includes a positioning frame for limiting the movement of the fork tongue in the first direction, and the positioning frame is installed on the fixing strip and surrounds the first strip-shaped hole.

[0019] As a further improvement of the present invention, the strip push-pull lock further includes an indoor surface shell, which is assembled to the main shell, and the main shell moves along the first direction relative to the fixing strip under the drive of the indoor surface shell.

[0020] The utility model has the following beneficial effects: by installing a first anti-theft block on the fork tongue of the shift fork, and by having the first anti-theft block snap into the slot of the fixed bar to prevent the shift fork from moving, even when the lock core is damaged, the bar push-pull lock can still effectively lock the fan body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the strip push-pull lock provided by an embodiment of the present invention being assembled to a fan profile.

[0022] Figure 2 It is a schematic diagram of the exploded structure of the strip push-pull lock provided by an embodiment of the utility model.

[0023] Figure 3 It is a schematic cross-sectional view of a strip push-pull lock provided in an embodiment of the present utility model.

[0024] Figure 4 It is a schematic diagram of the matching structure of the first anti-theft block and the second anti-theft block in the bar-shaped push-pull lock provided by an embodiment of the present utility model.

[0025] Figure 5 It is a schematic diagram of the matching structure between the transmission structure and the main housing in the strip push-pull lock provided by an embodiment of the present utility model.

[0026] Figure 6 It is a schematic diagram of the cross-sectional structure of the strip push-pull lock provided by an embodiment of the present utility model in another direction.

[0027] 11 Fan body profile 12 Connecting rod

[0028] 20 Main housing 21 Top plate

[0029] 211 second strip hole 212 rack

[0030] 213 rectangular hole 22 side panel

[0031] 221 second groove 23 ball rack

[0032] 24 Silent block 25 Positioning piece

[0033] 26 screws 30 fixing strips

[0034] 31 bottom plate 311 first strip hole

[0035] 32 vertical plate 321 bayonet

[0036] 322 first groove 33 transmission component

[0037] 331 Gear 332 Shell

[0038] 34 Positioning frame 40 Fork

[0039] 41 End plate 42 Fork tongue

[0040] 421 assembly slot 50 indoor shell

[0041] 60 Outdoor shell 61 Lock cylinder

[0042] 611 lever 70 first anti-theft block

[0043] 71 card block 711 stop surface

[0044] 712 first slope 80 second anti-theft block DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] like Figure 2-Figure 4 FIG. 1 is a schematic diagram of the structure of a bar push-pull lock provided by an embodiment of the present invention. The bar push-pull lock can be installed on a sliding door and realize the locking control of the sliding door. The bar push-pull lock of this embodiment includes a main housing 20, a fixing bar 30, a shift fork 40 and a first anti-theft block 70. The fixing bar 30 is used to move the door in a first direction X (e.g. Figure 1The main housing 20 is fixed to the inner surface of the fan profile 11 (for example, the door profile of a sliding door) (in the vertical direction). The main housing 20 is assembled to the fixing bar 30 and can slide relative to the fixing bar 30 in the first direction X. A portion of the shift fork 40 is inserted into the inner cavity of the fan profile 11 and connected to the connecting rod 12 therein (the connecting rod 12 has one or more locking hooks). When the main housing 20 moves up or down relative to the fixing bar 30 in the first direction X, the shift fork 40 drives the connecting rod 12 to operate, thereby locking and unlocking the fan. The structure of using the shift fork to drive the connecting rod is a common technology in this field and will not be described in detail here.

[0047] The shift fork 40 includes a fork tongue 42, the shape and size of which can be similar to those of fork tongues in existing push-pull locks. Unlike existing fork tongues, the fork tongue 42 also has a mounting groove 421 located on its side surface. For example, the mounting groove 421 can specifically include two through holes and a blind hole located between the two through holes, with the through holes and the blind hole radially connected. In one embodiment of the present invention, the shift fork 40 also includes an end plate 41, and the rear end of the fork tongue 42 in the second direction Y is connected to the end plate 41. The cross-sectional dimensions of the fork tongue 42 are smaller than the cross-sectional dimensions of the end plate 41 (the cross-sectional dimensions are perpendicular to the second direction Y).

[0048] The fixing bar 30 is provided with a first strip hole 311 and a bayonet 321. The first strip hole 311 is arranged along the first direction X, and the length of the first strip hole 311 (i.e., the dimension along the first direction X) is greater than the dimension of the fork tongue 42 in the first direction X, and the width of the first strip hole 311 is adapted to the corresponding dimension of the fork tongue 42, so that the fork tongue 42 can be inserted into the first strip hole 311 and can slide in the first strip hole 311 along the first direction X. The bayonet 321 is located on the side of the first strip hole 311, in particular, the bayonet 321 is close to the tail end of the first strip hole 311. It can be understood by those skilled in the art that the dimension of the bayonet 321 in the first direction X is much smaller than the dimension of the fork tongue 42 in the first direction X. Specifically, as Figure 4 As shown, the fixing strip 30 may include a base plate 31 and two vertical plates 32, wherein the base plate 31 is used to be attached to the surface of the fan profile 11, and the two vertical plates 32 are respectively connected perpendicularly to the upper surface of the base plate 31 along the first direction X. The first strip hole 311 is located on the base plate 31, and the latch 321 is located on one of the vertical plates 32. Of course, in actual applications, the fixing strip 30 may also adopt other structures, for example, including only the base plate 31, and the latch 321 may be located on a connecting member fixed to the base plate 31.

[0049] The main housing 20 is slidably assembled to the fixing bar 30 via a guide structure arranged along the first direction X, and the main housing 20 has a second strip hole 211. The shape and size of the second strip hole 211 are adapted to the shape and size of the fork tongue 42, that is, the fork tongue 42 can be inserted into the second strip hole 211. It can be understood that the size of the second strip hole 211 is smaller than the cross-sectional size of the end plate 41 of the fork 40. Specifically, as Figure 5 As shown, the main housing 20 may include a top plate 21 and two side plates 22, wherein the two side plates 22 are respectively connected to the lower surface of the top plate 21 vertically along the first direction X, and the second strip-shaped hole 211 is located on the top plate 21. Of course, in actual applications, the main housing 20 may also adopt other structures.

[0050] The first anti-theft block 70 includes a block 71, and the size of the block 71 is adapted to the slot 321 on the fixing bar 30, that is, the block 71 can be inserted into the slot 321, and after the block 71 is inserted into the slot 321, the first anti-theft block 70 cannot move relative to the fixing bar 30. The first anti-theft block 70 is assembled into the assembly groove 421 of the fork tongue 42 via an elastic member (e.g., a compression spring). The shape and size of the assembly groove 421 are adapted to the shape and size of the first anti-theft block 70. Moreover, it will be understood by those skilled in the art that the first anti-theft block 70 is assembled into the assembly groove 421 of the fork tongue 42 via the elastic member, which means that both the elastic member and the first anti-theft block 70 are assembled into the assembly groove 421, and in the absence of external force, the first anti-theft block 70 is elastically pushed so that the block 71 protrudes from the side surface of the fork tongue 42.

[0051] The shift fork 40 is assembled to the main housing 20 in such a manner that the front end of the fork tongue 42 passes through the second strip hole 211 and the first strip hole 311 in sequence along the second direction Y and is then inserted into the inner cavity of the fan profile 11. The first anti-theft block 70 in the assembly groove 421 is located between the main housing 20 and the fixing bar 30, and the end plate 41 of the shift fork 40 is located outside the main housing 20. Since the shape and size of the second strip hole 211 are compatible with the shape and size of the fork tongue 42, the fork tongue 42 is driven to move when the main housing 20 moves, and when the fork tongue 42 follows the main housing 20 from the head end position (for example, Figure 3 The middle fork tongue 42 can be moved to the leftmost position) to the rear end position (eg Figure 3 During the process of the middle fork tongue 42 being able to move to the rightmost position), the elastic member pushes the first anti-theft block 70 so that its card block 71 is locked into the card slot 321 of the fixing bar 30, thereby preventing the fork tongue 42 from moving relative to the fixing bar 30, thereby locking the fan body.

[0052] The above-mentioned strip push-pull lock is configured such that a first anti-theft block 70 is installed on the fork tongue 42 of the shift fork 40. When the shift fork 40 moves following the movement of the main housing 20, the elastic member pushes the first anti-theft block 70 so that the locking block 71 is engaged with the locking notch 321 of the fixed bar 30 to prevent the shift fork 40 from moving further. Even when the lock core of the push-pull lock is damaged, the fan body can still be effectively locked, thereby improving the security of the strip push-pull lock.

[0053] In one embodiment of the present invention, the length of the second strip hole 211 on the main housing 20 is slightly larger than the dimension of the fork tongue 42 in the first direction X, and when the fork tongue 42 is at the tail end position, there is a gap (for example, the gap is about 2 mm) between the fork tongue 42 and the tail end of the second strip hole 211, that is, when the fork tongue 42 is at the tail end position, Figure 3 As shown, when the main housing 20 is pushed leftward, the main housing 20 will first move leftward until the gap between the tail end of the second strip hole 211 and the fork tongue 42 disappears, and then the fork tongue 42 moves leftward along with the main housing 20.

[0054] Accordingly, the above-mentioned bar-shaped push-pull lock includes a second anti-theft block 80, which is assembled between the main housing 20 and the fixed bar 30 (the second anti-theft block 80 can be fixed to the main housing 20 by screws). When the main housing 20 pushes the fork tongue 42 to move from the rear end position to the front end position, the second anti-theft block 80 moves with the main housing 20 and pushes the block 71 of the first anti-theft block 70 away from the latch 321 of the fixed bar 30. Because the main housing 20 moves before the fork tongue 42 in the above process, the second anti-theft block 80, which moves synchronously with the main housing 20, can push the first anti-theft block 70 before the fork tongue 42 moves, causing the first anti-theft block 70 to overcome the elastic force of the elastic member and move into the assembly groove 421. After the block 71 leaves the latch 321 of the fixed bar 30, the main housing 20 also drives the fork tongue 42 to move, thereby unlocking the fan body.

[0055] Through the cooperation of the first anti-theft block 70 and the second anti-theft block 80, the fan body can be locked and unlocked without a lock core, thereby improving the security of the bar push-pull lock.

[0056] like Figure 4As shown, in one embodiment of the present invention, the locking block 71 on the first anti-theft block 70 includes a stop surface 711 and a first sloped surface 712. The stop surface 711 is perpendicular to the first direction X. The first anti-theft block 70 engages with one end surface of the retaining opening 321 via the stop surface 711, preventing the fork tongue 42 from moving relative to the fixing bar 30. The first sloped surface 712 faces the second anti-theft block 80, and at least a portion of the second anti-theft block 80 abuts against the first sloped surface 712. The second anti-theft block 80 can further move away from the stop surface 711 by supporting the first anti-theft block 70. When the main housing 20 pushes the fork tongue 42 from the rear end position to the front end position, the second anti-theft block 80 pushes the first sloped surface 712, causing the first anti-theft block 70 to retract into the assembly slot 421, overcoming the elastic force of the elastic member, and thus removing the locking block 71 from the retaining opening 321 of the fixing bar 30. The above structure facilitates the first anti-theft block 70 to lock the fork tongue 42 , and also facilitates the second anti-theft block 80 to push the first anti-theft block 70 to unlock.

[0057] Furthermore, the second anti-theft block 80 includes a second sloped surface having a shape opposite to that of the first sloped surface 712. When the main housing 20 pushes the fork tongue 42 from the rear end position to the front end position, the second anti-theft block 80 pushes the first sloped surface 712 via the second sloped surface, causing the locking block 71 to leave the locking notch 321 of the fixing bar 30. This structure further facilitates the second anti-theft block 80 pushing the first anti-theft block 70 to unlock.

[0058] Combine Figure 2 、 Figure 3 As shown, in one embodiment of the present invention, the aforementioned bar-type push-pull lock further includes a transmission assembly 33, a lock cylinder 61, and an exterior housing 60. The exterior housing 60 is mounted on the exterior side of the sector profile 11 along a first direction X and has a keyhole formed therein. The lock cylinder 61 is mounted inside the keyhole of the exterior housing, allowing a key to be inserted through the keyhole into the lock cylinder 61 and rotate the lock cylinder 61. The transmission assembly 33 is mounted to the fixed bar 30 and, driven by a lever 611 of the lock cylinder 61, propels the main housing 20 along the first direction X. Of course, in actual applications, the lock cylinder 61 can also be assembled and driven to move the main housing 20 using other conventional methods.

[0059] like Figure 5 As shown, in one embodiment of the present invention, the transmission assembly 33 includes a gear 331, which is driven to rotate by the lock cylinder 61. Accordingly, the main housing 20 includes a rack 212 that meshes with the gear 331. When the gear 331 rotates, the rack 212 propels the main housing 20 in the first direction X. The mating structure of the gear 331 and the rack 212 is relatively simple and stable.

[0060] Specifically, when the main housing 20 includes a top plate 21 having a rectangular hole 213, the rack 212 is located on the sidewall of the rectangular hole 213 along the first direction X, i.e., the rack 212 is integral with the main housing 20. Accordingly, the transmission assembly 33 includes a protective housing 332 in addition to the gear 331. The gear 331 is located within the protective housing 332, and both the gear 331 and the protective housing 332 are embedded in the rectangular hole 213. Silent blocks 24 are fixed to each end of the rectangular hole 213 in the first direction X. These silent blocks 24 can be made of a plastic material, etc., and can effectively prevent noise generated by the protective housing 332 striking the main housing 20.

[0061] like Figure 6 As shown, in one embodiment of the present invention, when the fixing bar 30 includes a bottom plate 31 attached to the surface of the fan profile 11 and two vertical plates 32 respectively connected to the upper surface of the bottom plate 31 along a first direction X, and the main housing 20 includes a top plate 21 and two side plates 22 respectively connected to the lower surface of the top plate 21 along the first direction X (the spacing between the two side plates 22 is greater than the spacing between the two vertical plates 32), the outer side surfaces of the two vertical plates 32 each have a first groove 322 arranged along the first direction X, and the inner sides of the two side plates 22 each have a second groove 221 arranged along the first direction X. The main housing 20 is mounted to the fixing bar 30 in such a manner that the two side plates 22 are respectively located outside the two vertical plates 32, the two second grooves 221 respectively oppose the first groove 322, and a ball cage 23 including multiple balls is mounted between each second groove 221 and the first groove 322. Through the above structure, a sliding connection between the main housing 20 and the fixing bar 30 is achieved, ensuring smooth sliding and low sliding friction. Of course, in actual applications, the main housing 20 may also be assembled to the fixing bar 30 using other structures, but long-term use may cause wear of the device.

[0062] In one embodiment of the present invention, the strip-shaped push-pull lock may further include a positioning frame 34 for limiting the movement of the fork tongue 42 in the first direction X. The positioning frame 34 may be made of a plastic material and is mounted on the fixing bar 30 and surrounds the first strip-shaped hole 311. The positioning frame 34 prevents the fork tongue 42 from directly impacting the fixing bar 30 and causing damage or wear.

[0063] In one embodiment of the present invention, the aforementioned strip push-pull lock further includes an interior housing 50. This interior housing 50 is assembled to the main housing 20, for example, by engaging with a positioning member 25 fixed to the main housing 20 via screws 26. Driven by the interior housing 50, the main housing 20 moves relative to the fixing bar 30 in the first direction X. The interior housing 50 effectively protects the main housing 20 and its components, while also making the interior portion of the strip push-pull lock more compact and aesthetically pleasing.

[0064] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A strip push-pull lock, characterized in that: include: A shift fork, comprising a fork tongue having a mounting groove on a side surface thereof; A fixing strip, configured to be assembled to the inner side surface of the fan profile along a first direction, the fixing strip having a first strip-shaped hole arranged along the first direction and a bayonet located on a side of the first strip-shaped hole, wherein the length of the first strip-shaped hole is greater than the dimension of the fork tongue in the first direction; A main housing is slidably assembled to the fixing bar via a guide structure arranged along a first direction, and the main housing has a second bar-shaped hole adapted to fit the fork tongue; A first anti-theft block, comprising a clamping block adapted to the bayonet, and the first anti-theft block is assembled in the assembly groove of the fork tongue through an elastic member; The front end of the fork tongue passes through the second strip hole and the first strip hole in sequence along the second direction and is inserted into the inner cavity of the fan profile, and the first anti-theft block in the assembly groove is located between the main shell and the fixed bar, and in the process of the fork tongue following the main shell to move from the head end position to the tail end position, the elastic member pushes the card block to be stuck in the card slot of the fixed bar, thereby preventing the fork tongue from moving relative to the fixed bar.

2. The strip push-pull lock according to claim 1, characterized in that: The length of the second strip-shaped hole is greater than the dimension of the fork tongue in the first direction, and when the fork tongue is at the tail end, there is a gap between the fork tongue and the tail end of the second strip-shaped hole; The bar-shaped push-pull lock includes a second anti-theft block, which is assembled between the main shell and the fixed strip and fixed to the main shell. When the main shell pushes the fork tongue to move from the tail end position to the head end position, the second anti-theft block follows the movement of the main shell and pushes the block of the first anti-theft block away from the slot of the fixed strip.

3. The strip push-pull lock according to claim 2, characterized in that: The locking block includes a stop surface and a first slope surface, and the stop surface prevents the fork tongue from moving relative to the fixing bar; the first slope surface faces the second anti-theft block, at least a portion of the second anti-theft block is in contact with the first slope surface, and when the main shell pushes the fork tongue to move from the tail end position to the head end position, the second anti-theft block pushes the first slope surface so that the first anti-theft block overcomes the elastic force of the elastic member and retracts into the assembly groove to enable the locking block to leave the locking mouth of the fixing bar.

4. The strip push-pull lock according to claim 3, characterized in that: The second anti-theft block includes a second slope surface, the shape of the second slope surface is opposite to that of the first slope surface, and when the main shell pushes the fork tongue to move from the tail end to the head end of the first bar hole, the second anti-theft block pushes the first slope surface through the second slope surface to make the blocking block leave the blocking hole of the fixing bar.

5. The strip push-pull lock according to claim 2, characterized in that: The strip-type push-pull lock also includes a transmission assembly, a lock core and an outdoor outer shell; the outdoor outer shell is installed on the outer side of the fan body profile along the first direction, and has a lock hole on the outdoor outer shell; the lock core is installed on the inner side of the lock hole on the outdoor outer shell; the transmission assembly is installed to the fixed bar, and drives the main shell to move along the first direction under the drive of the lock core.

6. The strip push-pull lock according to claim 5, characterized in that: The transmission assembly includes a gear, and the gear is driven to rotate by the lock core; the main housing is provided with a rack engaged with the gear, and the rack pushes the main housing to move along the first direction when the gear rotates.

7. The strip push-pull lock according to claim 6, characterized in that: The main shell includes a top plate, and the top plate of the main shell has a rectangular hole, and the rack is located on the side wall of the rectangular hole along the first direction; the transmission assembly includes a protective shell, the gear is located in the protective shell, and the gear and the protective shell are both embedded in the rectangular hole; silent blocks are respectively fixed at the two ends of the rectangular hole in the first direction.

8. The strip push-pull lock according to claim 1, characterized in that: The fixing strip includes a bottom plate attached to the surface of the fan body profile and two vertical plates respectively connected to the upper surface of the bottom plate vertically along the first direction, and the outer sides of the two vertical plates respectively have a first groove arranged along the first direction, and the bayonet is located on one of the vertical plates; the main shell includes a top plate and two side plates respectively connected to the lower surface of the top plate vertically along the first direction, and the inner sides of the two side plates respectively have a second groove arranged along the first direction; the main shell is installed to the fixing strip in a way that the two side plates are respectively located on the outer sides of the two vertical plates, the two second grooves are respectively opposite to the first grooves, and a ball rack including a plurality of balls is installed between each second groove and the first groove.

9. The strip push-pull lock according to claim 2, characterized in that: The strip-shaped push-pull lock includes a positioning frame for limiting the movement of the fork tongue in a first direction. The positioning frame is installed on the fixing strip and surrounds the first strip-shaped hole.

10. The strip push-pull lock according to any one of claims 1 to 9, characterized in that: The strip push-pull lock further includes an interior surface shell, which is assembled to the main shell. The main shell is driven by the interior surface shell to move relative to the fixing strip along a first direction.

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