Spring bolt reversing structure

Abstract

The utility model discloses a spring bolt reversing structure which comprises a lock body, a guide seat installed on the lock body, a spring bolt, an inclined bolt and a connecting piece. The lock tongue is detachably connected with the connecting piece, a window for a tool to extend into is formed in the position, corresponding to the connecting position of the lock tongue and the connecting piece, of the lock body, a groove for installing the inclined tongue is formed in the lock tongue, and the inclined tongue is rotationally connected with the lock tongue. The guide seat is provided with an opening for the spring bolt and the inclined bolt to slide and extend out, the inclined bolt is provided with a first abutting part and a second abutting part, a notch is formed between the first abutting part and the second abutting part, the guide seat is provided with a limiting plate which can be positioned after sliding, the limiting plate is provided with paired first convex parts, and the first convex parts are arranged on the limiting plate. And the first convex part is positioned in the notch and is propped against and limited by the second propping part. According to the technical scheme, the spring bolt can be quickly taken out and reversely installed without disassembling the lock body, and the installation requirements of different door bodies can be met.

Description

Technical Field

[0001] This utility model relates to a locking tongue reversing structure. Background Technology

[0002] During lock installation and use, because doors may open to the left or right, the bolt needs to be reversed accordingly to ensure the lock can function properly for locking and unlocking, and to adapt to the installation requirements of different doors. Currently, most lock bodies on the market require the entire lock body to be removed from the door for bolt reversing, a cumbersome and time-consuming process. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a bolt reversing structure that allows the bolt to be quickly removed and reversing installed without disassembling the lock body, thus meeting the installation requirements of different door types.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a bolt reversing structure, comprising a lock body, a guide seat mounted on the lock body, a bolt, a beveled bolt, and a connecting piece;

[0005] The latch and the connecting piece are detachably connected. The lock body has a window for inserting tools at the connection between the latch and the connecting piece. The latch has a groove for installing the latch bolt. The latch bolt is rotatably connected to the latch. The bottom of the groove has a straight surface that abuts against the latch bolt.

[0006] The guide seat has an opening for the locking tongue and the oblique tongue to slide out. The oblique tongue has a first abutment part and a second abutment part. A notch is provided between the first abutment part and the second abutment part. The guide seat has a slidable and positionable limiting plate. The limiting plate has a pair of first protrusions. The first protrusions are located in the notch and abut against the second abutment part for limiting.

[0007] When the first protrusion disengages from the recess, the connection structure between the bolt and the connecting piece can be disassembled, allowing the bolt and the latch to be removed from the opening and installed in a different direction. When the first protrusion abuts against the recess, the first protrusion restricts the bolt and the latch from being removed from the opening.

[0008] As a further improvement of this utility model, the latch is provided with limiting grooves on both sides of the first protrusion for cooperating with the first protrusion. When the first protrusion cooperates with the limiting groove, the first protrusion restricts the latch from moving towards the inside of the lock body.

[0009] As a further improvement of this utility model, the limiting plate is also provided with a pair of second protrusions, and the guide seat is provided with grooves on both sides corresponding to the positions of the second protrusions for guiding and sliding the second protrusions.

[0010] As a further improvement of this utility model, the guide seat includes a first piece and a second piece, which are fixedly connected by fasteners. The first piece is provided with an arc-shaped spring plate protruding toward the second piece, and the limiting plate is positioned by pressing the arc-shaped spring plate onto the second piece.

[0011] As a further improvement of this utility model, the lock body is provided with a number of pairs of bent portions on the side facing the second piece, and the second piece is provided with a number of latches for the bent portions to overlap. The lock body is installed on the second piece through the connection between the bent portions and the latches.

[0012] As a further improvement of this utility model, the connecting piece is provided with a first baffle and a second baffle, and the lock body is provided with a limiting piece to restrict the movement of the connecting piece. The limiting piece is fixedly connected to the lock body and installed between the first baffle and the second baffle. A return spring is provided between the first baffle and the limiting piece. Both the first baffle and the limiting piece are provided with protruding posts for spring installation and positioning.

[0013] As a further improvement of this utility model, the first baffle has at least one mounting ear fixedly connected to the lock tongue on the side facing the lock tongue, and the lock tongue and the mounting ear are fixedly connected by fasteners.

[0014] As a further improvement of this utility model, the locking tongue is provided with a slot on the side facing the mounting ear, which cooperates with the mounting ear, and the number of slots corresponds to the number of mounting ears.

[0015] As a further improvement of this utility model, a dial wheel is rotatably connected inside the lock body. A lever that cooperates with the connecting piece is provided on the outer periphery of the dial wheel. When the dial wheel rotates, it pushes the connecting piece to move through the lever. A torsion spring is also provided on the dial wheel to prevent the lever from interfering with the connecting piece.

[0016] As a further improvement of this utility model, the outer periphery of the dial is also provided with a protrusion. Under the action of the torsion spring, the protrusion interferes with the inner contour of the housing, thereby limiting the position of the lever after reset.

[0017] The beneficial effects of this utility model are: the above technical solution allows the lock tongue to be quickly removed and repositioned without disassembling the lock body, which can meet the installation requirements of different door types. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the first piece of the present invention.

[0021] Figure 4 This is a schematic diagram showing the first piece of the present invention hidden in an embodiment.

[0022] Figure 5 This is a schematic diagram of the locking tongue in an embodiment of the present utility model;

[0023] Figure 6 This is a schematic diagram of the oblique tongue in an embodiment of the present utility model;

[0024] Figure 7 This is a schematic diagram of the installation of the second piece and the lock body in an embodiment of this utility model;

[0025] Figure 8 This is a schematic diagram of the limiting plate in an embodiment of the present utility model.

[0026] Reference numerals: 1. Lock body; 2. Guide seat; 3. Lock tongue; 4. Slanted tongue; 5. Connecting piece; 6. Window; 7. Groove; 8. Opening; 9. First abutment part; 10. Second abutment part; 11. Notch; 12. Limiting plate; 13. First protrusion; 14. Limiting groove; 15. Second protrusion; 16. Slide groove; 17. First piece; 18. Second piece; 19. Arc-shaped spring plate; 20. Bending part; 21. Bay; 22. First baffle; 23. Second baffle; 24. Limiting piece; 25. Return spring; 26. Protrusion; 27. Mounting ear; 28. Slot; 29. ​​Dial wheel; 30. Dial lever; 31. Torsion spring; 32. Protrusion. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0028] Reference Figure 1-8 As shown, a reversing structure for a latch 3 includes a lock body 1, a guide seat 2 mounted on the lock body 1, a latch 3, a beveled latch 4, and a connecting piece 5. The latch 3 and the connecting piece 5 are detachably connected. The lock body 1 has a window 6 for inserting a tool at the connection between the latch 3 and the connecting piece 5. The latch 3 has a groove 7 for installing the beveled latch 4, and the beveled latch 4 is rotatably connected to the latch 3. The bottom of the groove has a straight surface that abuts against the beveled latch. The guide seat 2 has an opening 8 for the latch 3 and the beveled latch 4 to slide out. The beveled latch 4 has a first abutting part 9 and a second abutting part 1. 0. A notch 11 is provided between the first abutting part 9 and the second abutting part 10. A slidable and rear-positionable limiting plate 12 is provided on the guide seat 2. A pair of first protrusions 13 are provided on the limiting plate 12. The first protrusions 13 are located at the notch 11 and the second abutting part 10 for abutment and limitation. When the first protrusions 13 are disengaged from the notch 11, the connection structure between the locking tongue 3 and the connecting piece 5 can be disassembled, and the locking tongue 3 and the oblique tongue 4 can be taken out from the opening 8 and installed in a different direction. When the first protrusions 13 are engaged with the notch 11, the first protrusions 13 restrict the locking tongue 3 and the oblique tongue 4 from being taken out from the opening 8.

[0029] The guide seat 2 can be fixedly connected to the lock body 1 by fasteners or other snap-fit ​​fixing schemes. The lock tongue 3 and the connecting piece 5 are detachably connected by bolts. The bolts pass through the corresponding mounting holes of the lock tongue 3 and the connecting piece 5. The window 6 on the lock body 1 is directly opposite the bolt connection. The size of the window 6 is adapted to the insertion operation of commonly used disassembly tools. The inclined tongue 4 is rotatably connected to the groove 7 of the lock tongue 3 by a rotating shaft. The limiting plate 12 is slidably connected to the preset slide groove 16 of the guide seat 2. The slide groove 16 is set along the height direction of the guide seat 2. The limiting plate 12 can slide back and forth along the slide groove 16 and achieve positioning after sliding. The first abutting part 9 on the tongue 4 is used to abut against the metal piece on the door frame to receive force. Since the second abutting part 10 and the first protrusion 13 abut against each other and become the force fulcrum, the tongue 4, which is rotatably connected to the latch 3, is driven by the latch 3 to move along the opening 8 of the guide seat 2 towards the lock body 1 to unlock. When it is necessary to change the direction of the latch 3, the limiting plate 12 is pushed to slide along the slide groove 16, so that the first protrusion 13 on the limiting plate 12 is disengaged from the recess 11 on the tongue 4. At this time, a tool is inserted through the window 6 to remove the bolt between the latch 3 and the connecting piece 5. The latch 3 and the tongue 4 can then be taken out together from the opening 8 of the guide seat 2. After the reversal installation is completed, the limiting plate 12 is pushed in the opposite direction, so that the first protrusion 13 returns to the recess 11 and abuts against the second abutting part 10 again. A straight surface is provided at the bottom of the groove 7 to abut against the oblique tongue 4, so that the oblique tongue 4 maintains the initial angle relative to the locking tongue 3 when it is not under force, and avoids the oblique tongue 4 from rotating unexpectedly due to its own weight or slight vibration.

[0030] The latch 3 has limiting grooves 14 on both sides corresponding to the first protrusion 13 for engaging with the first protrusion 13. When the first protrusion 13 engages with the limiting grooves 14, the first protrusion 13 restricts the movement of the latch 3 toward the inside of the lock body 1. The locking grooves 14 are respectively opened on both sides of the latch 3 opposite to the first protrusion 13, and the groove walls of the limiting grooves 14 match the first protrusion 13. Pushing the limiting plate 12 causes the first protrusion 13 to be inserted into the limiting grooves 14 of the latch 3, and the first protrusion 13 and the limiting grooves 14 form an abutment. At this time, the first protrusion 13 can limit the displacement of the latch 3 toward the inside of the lock body 1.

[0031] The limiting plate 12 is also provided with a pair of second protrusions 15. The guide seat 2 has grooves 16 on both sides corresponding to the positions of the second protrusions 15, allowing the second protrusions 15 to slide smoothly. The limiting plate 12 has a pair of integrally formed second protrusions 15 on both sides. The guide seat 2 has grooves 16 on both sides corresponding to the positions of the second protrusions 15. The length direction of the grooves 16 is consistent with the sliding direction of the limiting plate 12, and the outer wall of the second protrusion 15 fits against the groove wall of the groove 16. During the sliding process of the limiting plate 12, its second protrusions 15 slide synchronously along the length direction of the grooves 16 of the guide seat 2. The groove wall of the groove 16 provides guidance and limitation for the second protrusions 15. Through the guiding cooperation of the second protrusions 15 and the grooves 16, the smoothness of the sliding of the limiting plate 12 can be improved, and the positioning accuracy of the limiting plate 12 can also be enhanced.

[0032] The guide seat 2 includes a first piece 17 and a second piece 18, which are fixedly connected by fasteners. The first piece 17 has an arc-shaped spring plate 19 protruding towards the second piece 18. The limiting plate 12 is positioned by pressing the arc-shaped spring plate 19 onto the second piece 18. The guide seat 2 is composed of the first piece 17 and the second piece 18 joined together. The first piece 17 and the second piece 18 are fastened together by fasteners. The arc-shaped spring plate 19 is integrally formed or fixedly connected to the side of the first piece 17 facing the second piece 18. The elastic end of the arc-shaped spring plate 19 extends towards the second piece 18, and the elastic end of the arc-shaped spring plate 19 abuts against the surface of the limiting plate 12 facing away from the second piece 18. After the limiting plate 12 completes its sliding positioning, the elastic restoring force of the arc-shaped spring plate 19 exerts pressure on the limiting plate 12 to achieve positioning and fixation.

[0033] The lock body 1 has several pairs of bent portions 20 on the side facing the second piece 18. The second piece 18 has several latches 21 for the bent portions 20 to overlap. The lock body 1 is installed on the second piece 18 through the connection between the bent portions 20 and the latches 21. The lock body 1 has several pairs of bent portions 20 integrally formed on the side facing the second piece 18. The ends of the bent portions 20 are hook-shaped or match the shape of the latches 21. The surface of the second piece 18 has latches 21 at corresponding positions of the bent portions 20, and the inner wall of the latches 21 fits against the ends of the bent portions 20. When installing the lock body 1 and the guide seat 2, the bent portions 20 of the lock body 1 are inserted into the latches 21 of the second piece 18, so that the ends of the bent portions 20 and the inner wall of the latches 21 overlap, realizing the detachable installation of the lock body 1 and the second piece 18. The overlapping fit between the bent part 20 and the bayonet 21 does not require additional complex connecting parts, which facilitates the quick assembly and disassembly of the lock body 1 and the guide seat 2.

[0034] The connecting piece 5 is provided with a first baffle 22 and a second baffle 23. A limiting piece 24 is provided inside the lock body 1 to restrict the movement of the connecting piece 5. The limiting piece 24 is fixedly connected to the lock body 1 and installed between the first baffle 22 and the second baffle 23. A return spring 25 is provided between the first baffle 22 and the limiting piece 24. Both the first baffle 22 and the limiting piece 24 are provided with protrusions 26 for spring installation and positioning. The first baffle 22 and the second baffle 23 are spaced apart. The limiting piece 24 is fixedly installed inside the lock body 1, positioned between the first baffle 22 and the second baffle 23. The inner walls of the first baffle 22 and the second baffle 23 can abut against the side wall of the limiting piece 24, thereby restricting the movement of the connecting piece 5 along its length. The two ends of the return spring 25 are respectively sleeved on the protrusion 26 on the side of the first baffle 22 facing the limiting piece 24 and on the protrusion 26 on the side of the limiting piece 24 facing the first baffle 22, thereby achieving the positioning and installation of the return spring 25. When the connecting piece 5 is displaced by the push of the lever 30, the first baffle 22 will squeeze the return spring 25, causing the spring to undergo elastic deformation. When the external force disappears, the elastic restoring force of the return spring 25 pushes the first baffle 22 to move in the opposite direction, causing the connecting piece 5 to return to its original position.

[0035] The first baffle 22 has at least one mounting ear 27 fixedly connected to the latch 3 on the side facing the latch 3. The latch 3 and the mounting ear 27 are fixedly connected by fasteners. The first baffle 22 has at least one integrally formed mounting ear 27 on the side facing the latch 3. The end face of the mounting ear 27 fits against the side wall of the latch 3, and the latch 3 and the mounting ear 27 are fixedly connected by fasteners. The mounting ear 27 provides a mounting base for the detachable connection between the latch 3 and the connecting piece 5.

[0036] The latch 3 has a groove 28 on the side facing the mounting ear 27, which mates with the mounting ear 27. The number of grooves 28 corresponds to the number of mounting ears 27. The side wall of the latch 3 has grooves 28 at corresponding positions on the mounting ear 27, with the number of grooves 28 matching the number of mounting ears 27, and the groove wall of the groove 28 matching the end face of the mounting ear 27. When installing the latch 3 and the connecting piece 5, the end of the mounting ear 27 is inserted into the groove 28 of the latch 3, and the groove wall of the groove 28 and the end face of the mounting ear 27 form a pre-positioning fit. Then, the latch 3 and the mounting ear 27 are fixedly connected by fasteners. The fit between the groove 28 and the mounting ear 27 reduces positioning errors during installation, improves the assembly accuracy of the latch 3 and the connecting piece 5, and also increases the contact area between the latch 3 and the mounting ear 27, further enhancing the stability of their connection.

[0037] A dial 29 is rotatably connected inside the lock body 1. A lever 30, which engages with a connecting piece 5, is located on the outer periphery of the dial 29. When the dial 29 rotates, the lever 30 pushes the connecting piece 5 to move. A torsion spring 31 is also provided on the dial 29 to prevent interference between the lever 30 and the connecting piece 5. One end of the torsion spring 31 is connected to the outer peripheral wall of the dial 29, and the other end is connected to the internal contour of the lock body 1 or a straight rod installed inside the lock body 1. When the dial 29 is driven to rotate, the lever 30 rotates synchronously with the dial 29. The end of the lever 30 pushes the connecting piece 5 to move in a preset direction, thereby causing the bolt 3 and the latch 4 to complete the unlocking action. The restoring force of the torsion spring 31 allows the dial 29 to actively reset after movement, preventing the lever 30 from jamming with the connecting piece 5.

[0038] The outer periphery of the dial 29 is also provided with a protrusion 32. Under the action of the torsion spring 31, the protrusion 32 interferes with the internal contour of the housing, thereby limiting the position of the lever 30 after reset. When the dial 29 drives the lever 30 to complete the unlocking action and reset, the elastic restoring force of the torsion spring 31 drives the dial 29 to rotate in the opposite direction until the protrusion 32 interferes with and abuts against the internal contour of the lock body 1. At this time, the lever 30 stops rotating and remains in the preset initial reset position. The interference fit between the protrusion 32 and the internal contour of the lock body 1 can limit the position of the lever 30 after reset, and also reduce the wear caused by repeated collisions between the lever 30 and the connecting piece 5, thus extending the service life of the overall structure.

[0039] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A locking tongue reversing structure, characterized in that, Includes the lock body, guide seat mounted on the lock body, bolt, latch, and connecting plate; The latch and the connecting piece are detachably connected. The lock body has a window for inserting tools at the connection between the latch and the connecting piece. The latch has a groove for installing the latch bolt. The latch bolt is rotatably connected to the latch. The bottom of the groove has a straight surface that abuts against the latch bolt. The guide seat has an opening for the locking tongue and the oblique tongue to slide out. The oblique tongue has a first abutment part and a second abutment part. A notch is provided between the first abutment part and the second abutment part. The guide seat has a slidable and positionable limiting plate. The limiting plate has a pair of first protrusions. The first protrusions are located in the notch and abut against the second abutment part for limiting. When the first protrusion disengages from the recess, the connection structure between the bolt and the connecting piece can be disassembled, allowing the bolt and the latch to be removed from the opening and installed in a different direction. When the first protrusion abuts against the recess, the first protrusion restricts the bolt and the latch from being removed from the opening.

2. The locking tongue reversing structure according to claim 1, characterized in that, The latch is provided with limiting grooves on both sides of the first protrusion for engaging with the first protrusion. When the first protrusion engages with the limiting groove, the first protrusion restricts the latch from moving toward the inside of the lock body.

3. The locking tongue reversing structure according to claim 1 or 2, characterized in that, The limiting plate is also provided with a pair of second protrusions, and the guide seat has grooves on both sides corresponding to the positions of the second protrusions for guiding and sliding the second protrusions.

4. The locking tongue reversing structure according to claim 3, characterized in that, The guide seat includes a first piece and a second piece, which are fixedly connected by fasteners. The first piece is provided with an arc-shaped spring plate protruding toward the second piece, and the limiting plate is positioned by pressing the arc-shaped spring plate onto the second piece.

5. The locking tongue reversing structure according to claim 4, characterized in that, The lock body has several pairs of bent portions on the side facing the second piece, and the second piece has several latches for the bent portions to overlap. The lock body is installed on the second piece through the connection between the bent portions and the latches.

6. The locking tongue reversing structure according to claim 3, characterized in that, The connecting piece is provided with a first baffle and a second baffle. The lock body is provided with a limiting piece that restricts the movement of the connecting piece. The limiting piece is fixedly connected to the lock body and installed between the first baffle and the second baffle. A return spring is provided between the first baffle and the limiting piece. Both the first baffle and the limiting piece are provided with protruding posts for the spring to be installed and positioned.

7. The locking tongue reversing structure according to claim 6, characterized in that, The first baffle has at least one mounting ear fixedly connected to the lock tongue on the side facing the lock tongue, and the lock tongue and the mounting ear are fixedly connected by fasteners.

8. The locking tongue reversing structure according to claim 7, characterized in that, The latch has a slot on the side facing the mounting ear that mates with the mounting ear, and the number of slots corresponds to the number of mounting ears.

9. The locking tongue reversing structure according to claim 4, characterized in that, The lock body is rotatably connected to a dial wheel, and the dial wheel is provided with a lever on its outer periphery that cooperates with the connecting piece. When the dial wheel rotates, it pushes the connecting piece to move through the lever. The dial wheel is also provided with a torsion spring to prevent the lever from interfering with the connecting piece.

10. The locking tongue reversing structure according to claim 9, characterized in that, The outer periphery of the dial is also provided with a protrusion, which interferes with the inner contour of the housing under the action of the torsion spring, thereby limiting the position of the lever after reset.

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