CN107218273B

CN107218273B - Lock catch

Info

Publication number: CN107218273B
Application number: CN201710660778.9A
Authority: CN
Inventors: 贺金锋
Original assignee: Shenzhen Zhouming Technology Co Ltd
Current assignee: Shenzhen Zhouming Technology Co Ltd
Priority date: 2017-08-04
Filing date: 2017-08-04
Publication date: 2022-01-11
Anticipated expiration: 2037-08-04
Also published as: CN107218273A; WO2019024446A1

Abstract

The invention provides a lock catch which comprises a lock catch module and a driving module, wherein the lock catch module comprises a pull buckle arranged on a first main body and an inclined pin rack arranged on a second main body and matched with the pull buckle, a first insertion hole is formed in the pull buckle, and the first insertion hole has a hole width enough for accommodating the inclined pin rack; the driving module is used for driving the angle pin rack to move transversely so that the angle pin rack is clamped with or separated from the first jack of the pull buckle at the buckling position. The lock catch structure can realize the inner and outer arc splicing and the plane splicing in different radians without finish machining. The latch may be used to splice together the first and second bodies.

Description

Lock catch

Technical Field

The invention relates to the field of machinery, in particular to a lock catch.

Background

The Chinese invention patent application numbers are: "201110102759.7", the name is "hasp connecting device, LED box and LED display screen" discloses a easy dismounting is swift, and can connect the hasp connecting device between the heavier box of quality, it is including fixing couple and the fixed pin on first base, fix lug and the fixed orifices on the second base, realize locking effect through couple and lug cooperation, realize the positioning action through fixed pin and fixed orifices grafting, this hasp connecting device still includes a tapering adjusting screw, can make this hasp connecting device have under the condition that the mould has machining error through adjusting screw, locking and two fixed objects that also can be fine.

The defects of the prior art are as follows: the distance deviation is adjusted through the hooks and the adjusting screws, the adjusting range is limited, is generally within 1mm, and is only suitable for adjusting the processing error of the die, and the change of the distance between the inner arc box body and the outer arc box body is usually more than several millimeters when the arc is spliced, so that the adjusting mode is not suitable for the arc splicing condition; in addition, the positioning structure in the prior art is large, the positioning pin is easy to be blocked due to the overturning moment, and the operation is not flexible enough.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the lock catch has a large distance adjusting range and is suitable for the main body with different radians and planes inside and outside.

In order to solve the technical problems, the invention adopts the technical scheme that:

the lock catch is characterized by comprising a lock catch module and a driving module, wherein the lock catch module comprises a pull buckle arranged on a first main body and an inclined pin rack arranged on a second main body and matched with the pull buckle, a first insertion hole is formed in the pull buckle, and the first insertion hole has a hole width enough for accommodating the inclined pin rack;

the driving module is used for driving the angle pin rack to move transversely so that the angle pin rack is clamped with or separated from the first jack of the pull buckle at the buckling position.

The invention has the beneficial effects that: the taper pin rack is inserted into the insertion hole of the pull buckle under the driving of the driving module to achieve the effect of locking the first main body and the second main body, the face of the taper pin rack clamped with the insertion hole of the pull buckle is an inclined face, when the distance deviation between the first main body and the second main body is large, the clamping occurs at the narrow part of the width of the taper pin rack, when the distance deviation between the first main body and the second main body is small, the clamping occurs at the wide part of the width of the taper pin rack, therefore, when the distance deviation between the first main body and the second main body is in a large range, the lock catch structure can well fix the two main bodies, and the lock catch structure can realize the inner and outer arc splicing and the plane splicing when finish machining is not needed.

Drawings

Fig. 1 is a schematic view illustrating a fastening state of a lock according to an embodiment of the invention;

FIG. 2 is a cross-sectional view of a latch according to an embodiment of the present invention;

FIG. 3 is a schematic view illustrating an opened state of a latch according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a latch positioning mechanism according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a buckle of a lock according to an embodiment of the present invention;

FIG. 6 is a schematic structural view of a latch rack of the present invention;

fig. 7 is a schematic structural view of a rotating handwheel of a lock catch according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a locking segment according to an embodiment of the present invention;

fig. 9 is a schematic view of a state after the assembled objects are connected into a whole by the lock catch according to the embodiment of the invention.

Description of reference numerals:

1. a first base; 11. a first groove; 12. a pin hole; 13. a first positioning bead;

2. a second base; 21. a second groove; 22. a third groove; 23. a taper pin groove;

24. positioning holes; 25. a second positioning bead; 3. pulling the button; 31. a first jack;

311. the first jack inclined hole wall; 32. a rotating shaft of the pull buckle; 33. a first bead positioning groove;

34. the tab is protruded; 35. a pull buckle gear; 4. a rack of angular pins; 41. the bottom edge of the rack of the angle pin;

42. a bevel pin rack bevel edge; 43. a second bead positioning groove; 5. rotating a hand wheel; 51. a hand wheel gear;

6. pulling and buckling the compression screw; 7. a cam pin rack press plate; 8. a sector block; 81. a central hole of the sector block;

82. the sector blocks are raised; 9. and positioning the pin rack.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

The present invention will be described below by taking the first body and the second body as the splice plates, respectively. It should be appreciated that the latch may also be used with bodies other than splice plates, such as cases, cabinets, doors, and the like.

Referring to fig. 1 to 9, the invention provides a lock catch for splice plates, which is characterized by comprising a lock catch module and a driving module, wherein the lock catch module comprises a pull buckle 3 mounted on a first splice plate and an angle pin rack 4 mounted on a second splice plate and adapted to the pull buckle 3, the pull buckle is provided with a first insertion hole 31, and the first insertion hole 31 has a hole width enough to accommodate the angle pin rack 4;

the driving module is used for driving the angle pin rack 4 to move transversely, so that the angle pin rack 4 is clamped with or separated from the first insertion hole 31 of the tab 3 at the buckling position.

From the above description, the beneficial effects of the present invention are: the taper pin rack is inserted into the jack of the pull buckle under the driving of the driving module to achieve the effect of locking the first splicing plate and the second splicing plate, because the face of the taper pin rack clamped with the jack of the pull buckle is an inclined face, when the distance deviation between the first splicing plate and the second splicing plate is large, the clamping occurs at the narrow part of the width of the taper pin rack, when the distance deviation between the first splicing plate and the second splicing plate is small, the clamping occurs at the wide part of the width of the taper pin rack, therefore, when the distance deviation between the first splicing plate and the second splicing plate is in a large range, the lock catch structure can well fix the two splicing plates.

Further, the tilt-pin rack 4 has a toothed bottom edge 41 and a tilt edge 42 inclined with respect to the bottom edge 41, the tilt edge 42 forming an inclination angle of less than 6 degrees with respect to the bottom edge 41.

From the above description, the inclination angle of the bevel edge of the taper pin rack is smaller than the self-locking angle of the steel material.

Further, the hole wall 311 of the first insertion hole 31 has the same inclination direction and inclination angle as the inclined edge 42 of the taper pin rack 4.

It can be known from the above description that the jack has the pore wall of the slope that the incline direction and the inclination of the hypotenuse of taper pin rack are the same for the pore wall of the slope of jack can contact completely with the hypotenuse of taper pin rack, and inclination is less than the auto-lock angle of steel, makes no matter how big external force that the tab exerted on the taper pin rack, can not take place to slide between jack and the taper pin rack, therefore makes this hasp structure can be used for locking two concatenation objects that weight is heavier.

Further, the pull buckle 3 is installed on a first base 1 on a first splice plate, and the angle pin rack 4 is installed on a second base 2 on a second splice plate;

the first base 1 and the second base 2 are respectively provided with a first groove 11 and a second groove 21 for accommodating the pull buckle.

As can be seen from the above description, the tab is clamped into the grooves on the first base and the second base, so that the two spliced objects can be locked to move along the direction perpendicular to the splicing direction.

Further, the driving module comprises a rotating hand wheel 5, a hand wheel gear 51 is arranged on a rod shaft of the rotating hand wheel 5, the hand wheel 5 is installed on the second base 2, and the hand wheel gear 51 is meshed with the angle pin rack 4.

According to the description, the rotating hand wheel is rotated, and the hand wheel gear rotates along with the rotating hand wheel gear to drive the angle pin rack to move transversely; the gear rack transmission mode is adopted, the service life is long, the work is stable, the reliability is high, the rotating hand wheel does not need to move along with the movement of the angle pin rack, and the installation space is greatly saved.

Furthermore, a pull buckle rotating shaft 32 is arranged at the bottom end of the pull buckle 3, and the pull buckle rotating shaft 32 is installed on the first base 1 through a pull buckle compression screw 6, so that the pull buckle 3 rotates around the first base 1. In one example, the tab rotation axis 32 is arranged parallel to the splice plate surface, i.e. the tab 3 rotates around the first base 1 perpendicular to the splice plate surface to snap into the second base.

Further, a first bead positioning groove 33 is formed in the pull buckle rotating shaft 32, and a first positioning bead 13 matched with the first bead positioning groove 33 is formed in the first base 1.

From the above description, when the tab is rotated to the vertical position, the positioning bead is clamped into the first bead positioning groove to achieve the vertical positioning of the tab.

Furthermore, a tab protrusion 34 is arranged at the top end of the tab 3, and a third groove 22 matched with the tab protrusion 34 is arranged on the second base 2.

From the above description, after the zipper is closed, the lock catch structure can bear the self weight of the spliced object to prevent the spliced object from sliding off.

Further, a second bead positioning groove 43 is formed in the angle pin rack 4, and a second positioning bead 25 matched with the second bead positioning groove 43 is formed in the second base 2.

From the above description, when the taper pin rack is not engaged with the tab jack, the positioning bead is engaged in the taper pin rack bead positioning groove, thereby achieving the initial position positioning of the taper pin rack.

Further, the angle pin rack 4 is installed in an angle pin groove 23 matched with the angle pin rack pressing plate 7 through the angle pin rack pressing plate 7, and the angle pin groove 23 is fixed on the second base 2.

Further, the cam groove 23 has a size larger than that of the cam rack 4 to ensure that the cam rack 4 can reciprocate in a wide range along the cam groove 23.

As can be seen from the above description, the latch rack and the tab can be engaged at different positions.

Further, the lock catch further comprises a fan-shaped block 8 clamped between the first base 1 and the second base 2, and the fan-shaped block 8 has an arc angle in a direction perpendicular to the splicing surfaces of the first splicing plate and the second splicing plate.

Further, the arc angle is between 0 and 40 degrees.

As can be seen from the above description, different inner and outer radians and plane splicing can be realized by selecting the splicing blocks with different arc angle degrees.

Further, the lock catch further comprises a positioning mechanism, and the positioning mechanism comprises a positioning pin rack 9 and a positioning hole 24 which are matched with each other;

the positioning pin rack 9 is installed in the pin hole 12 of the first base 1 and is meshed and connected with the pull buckle 3 through a pull buckle gear 35, and the pull buckle gear 35 is positioned on the pull buckle rotating shaft 32;

the positioning hole 24 is fixed on the second base 2, and the positioning pin rack 9 is driven by the pull buckle gear 35 to move so as to be inserted into the positioning hole 24.

It can be known from the above description that after the tab is fastened around its rotation center, the positioning pin rack is inserted into the positioning hole on the second base under the driving of the tab gear, so as to realize the positioning function. By adopting the positioning pin structure driven by the rack, the positioning mechanism is small, the action is stable and reliable, the phenomenon of locking cannot occur, and the operation is flexible.

Further, the positioning mechanism further comprises a fan-shaped block 8 clamped between the first base 1 and the second base 2, the fan-shaped block 8 has an arc angle of 0-40 degrees in a direction perpendicular to the splicing surfaces of the first splicing plate and the second splicing plate, and the positioning pin rack 9 is inserted into the fan-shaped block 8 before being inserted into the positioning hole 24.

Further, the segment 8 has a segment center hole 81 through which the positioning pin rack 9 passes, and has a segment protrusion 82 inserted into the positioning hole 24.

According to the description, the sector block with the radian angle is added into the positioning mechanism, so that the positioning is more stable and reliable when the radian is spliced, and the two splicing plates spliced by the radian are more firmly fixed by the lock catch.

The first embodiment of the invention is as follows:

a lock catch for splicing plates is characterized by comprising a lock catch module and a driving module, wherein the lock catch module comprises a pull buckle 3 installed on a first splicing plate and an inclined pin rack 4 installed on a second splicing plate and matched with the pull buckle 3, a first insertion hole 31 is formed in the pull buckle, and the first insertion hole 31 has a hole width enough for accommodating the inclined pin rack 4;

The pull buckle 3 is arranged on a first base 1 on a first splicing plate, and the angle pin rack 4 is arranged on a second base 2 on a second splicing plate;

The bottom end of the pull buckle 3 is provided with a pull buckle rotating shaft 32, and the pull buckle rotating shaft 32 is installed on the first base 1 through a pull buckle compression screw 6, so that the pull buckle 3 rotates around the first base 1.

The angle pin rack 4 is installed in an angle pin groove 23 matched with the angle pin rack pressing plate 7 through the angle pin rack pressing plate 7, and the angle pin groove 23 is fixed on the second base 2.

The cam groove 23 has a larger size than the cam rack 4 to ensure that the cam rack 4 can reciprocate in a larger range along the cam groove 23.

The second embodiment of the invention is as follows:

the second embodiment differs from the first embodiment in that the tilt-pin rack 4 has a toothed bottom edge 41 and a tilt edge 42 inclined with respect to the bottom edge 41, the tilt edge 42 forming an inclination angle of less than 6 degrees with respect to the bottom edge 41. The hole wall 311 of the first insertion hole 31 has the same inclination direction and inclination angle as the inclined edge 42 of the taper pin rack 4.

The third embodiment of the invention is as follows:

the third embodiment is different from the second embodiment in that the driving module includes a rotating handwheel 5, a handwheel gear 51 is arranged on a shaft of the rotating handwheel 5, the handwheel 5 is mounted on the second base 2, and the handwheel gear 51 is in meshed connection with the angle pin rack 4.

The fourth embodiment of the invention is as follows:

the fourth embodiment is different from the third embodiment in that a first bead positioning groove 33 is formed in the tab rotating shaft 32, and a first positioning bead 13 matched with the first bead positioning groove 33 is formed in the first base 1.

The fifth embodiment of the invention is as follows:

the fifth embodiment is different from the fourth embodiment in that a tab protrusion 34 is disposed at the top end of the tab 3, and a third groove 22 adapted to the tab protrusion 34 is disposed on the second base 2.

The sixth embodiment of the invention is as follows:

the difference between the sixth embodiment and the fifth embodiment is that a second bead positioning groove 43 is formed on the taper pin rack 4, and a second positioning bead 25 matching with the second bead positioning groove 43 is formed on the second base 2.

The seventh embodiment of the invention is:

the seventh embodiment is different from the sixth embodiment in that the lock catch further comprises a segment 8 clamped between the first base 1 and the second base 2, and the segment 8 has an arc angle in a direction perpendicular to the splicing surfaces of the first splicing plate and the second splicing plate; the arc angle is between 0-40 degrees.

The eighth embodiment of the present invention is:

the eighth embodiment is different from the sixth embodiment in that the lock catch further comprises a positioning mechanism, and the positioning mechanism comprises a positioning pin rack 9 and a positioning hole 24 which are matched with each other; the positioning pin rack 9 is installed in the pin hole 12 of the first base 1 and is meshed and connected with the pull buckle 3 through a pull buckle gear 35, and the pull buckle gear 35 is positioned on the pull buckle rotating shaft 32; the positioning hole 24 is fixed on the second base 2, and the positioning pin rack 9 is driven by the pull buckle gear 35 to move so as to be inserted into the positioning hole 24.

The ninth embodiment of the invention is:

the ninth embodiment differs from the eighth embodiment in that the positioning mechanism further comprises a segment 8 for being sandwiched between the first base 1 and the second base 2, the segment 8 has an arc angle between 0 and 40 degrees in a direction perpendicular to the splicing surfaces of the first splicing plate and the second splicing plate, and the positioning pin rack 9 is inserted into the segment 8 before being inserted into the positioning hole 24. The segment 8 has a segment center hole 81 through which the positioning pin rack 9 passes, and has a segment protrusion 82 inserted into the positioning hole 24.

In summary, the latch for the splice plates provided by the invention achieves the effect of locking the first base and the second base by inserting the angle pin rack into the angle hole of the pull buckle under the driving of the rotating hand wheel, and because the surface where the angle pin rack is clamped with the angle hole of the pull buckle is an inclined surface, when the distance deviation between the first splice plate and the second splice plate is within a larger range, the latch structure can well fix the two splice plates, and the latch structure can realize the inner and outer arc splicing and plane splicing with different radians when finish machining is not needed; in addition, the lock catch structure also adopts a rack-driven positioning pin structure, so that the positioning mechanism is small, stable and reliable in action, free of clamping phenomenon and flexible in operation. The locking structure can be used for locking two spliced objects with heavier weight.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims

1. A lock catch is characterized by comprising a lock catch module and a driving module, wherein the lock catch module comprises a pull buckle arranged on a first main body and an inclined pin rack arranged on a second main body and matched with the pull buckle, a first insertion hole is formed in the pull buckle, and the first insertion hole has a hole width enough for accommodating the inclined pin rack;

the driving module is used for driving the angle pin rack to move transversely so that the angle pin rack is clamped with or separated from the first jack of the pull buckle at the buckling position;

the angle pin rack has a toothed bottom edge and an oblique edge inclined relative to the bottom edge;

the hole wall of the first insertion hole and the bevel edge on the bevel pin rack have the same inclination direction and inclination angle.

2. A latch according to claim 1, wherein said angled edge forms an angle of inclination of less than 6 degrees with respect to said bottom edge.

3. A shackle as claimed in claim 1 or claim 2, characterised in that the tab is mounted on a first base on the first body and the angle pin rack is mounted on a second base on the second body;

the first base and the second base are respectively provided with a first groove and a second groove for accommodating the pull buckle.

4. A latch as defined in claim 3, wherein the drive module comprises a rotary hand wheel, a hand wheel gear is arranged on a shaft of the rotary hand wheel, the hand wheel is mounted on the second base, and the hand wheel gear is engaged with the angle pin rack.

5. A shackle as claimed in claim 3, wherein the bottom end of the shackle is provided with a shackle rotation shaft, the shackle rotation shaft being mounted on the first base by a shackle compression screw for rotation of the shackle about the first base.

6. A shackle as claimed in claim 3, characterised in that the angle pin rack is mounted by an angle pin rack pressure plate in an adapted angle pin slot, which is fixed to the second base.

7. A latch as defined in claim 3, further comprising a segment for sandwiching between the first and second bases, the segment having an arc angle in a direction perpendicular to the splicing face of the first and second bodies, the arc angle being between 0-40 degrees.

8. The latch of claim 5 further comprising a positioning mechanism, wherein the positioning mechanism comprises a mating positioning pin rack and a positioning hole;

the positioning pin rack is arranged in a pin hole of the first base and is meshed and connected with the pull buckle through a pull buckle gear, and the pull buckle gear is positioned on the pull buckle rotating shaft;

the positioning hole is fixed on the second base, and the positioning pin rack moves under the driving of the pull buckle gear to be inserted into or withdrawn from the positioning hole.

9. A latch according to claim 8, further comprising a segment for clamping between the first and second bases, said segment having an arc angle between 0-40 degrees in a direction perpendicular to the splicing plane of the first and second bodies, said locating pin rack being inserted into said segment prior to insertion into said locating hole.