CN111048003A - Lock catch and display screen - Google Patents
Lock catch and display screen Download PDFInfo
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- CN111048003A CN111048003A CN201911399569.9A CN201911399569A CN111048003A CN 111048003 A CN111048003 A CN 111048003A CN 201911399569 A CN201911399569 A CN 201911399569A CN 111048003 A CN111048003 A CN 111048003A
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- 230000005540 biological transmission Effects 0.000 claims abstract description 97
- 238000003780 insertion Methods 0.000 claims description 58
- 230000037431 insertion Effects 0.000 claims description 58
- 230000000694 effects Effects 0.000 description 7
- 230000000670 limiting effect Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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Abstract
The application relates to a hasp and display screen, the hasp includes: the first locking mechanism comprises a first locking seat and an unlocking piece, the first locking seat is used for being fixed on a first object, and the unlocking piece can move relative to the first locking seat and has a first position and a second position; the second locking mechanism comprises a second lock seat, a lock rod, a transmission piece and a control component, the second lock seat is fixed on the second object, the lock rod is connected with the transmission piece and can slide relative to the second lock seat along with the transmission piece, the control component is fixedly connected with the lock rod, and the control component can drive the lock rod to move relative to the transmission piece; when the unlocking piece is at the first position, the unlocking piece is pressed between the lock rod and the first lock seat so as to lock and fix the first object and the second object; when the lock rod moves relative to the transmission piece and the unlocking piece moves to the second position, the unlocking piece and the lock rod are unlocked to unlock the first object and the second object. Thereby improving the stability and reliability of the locking of the lock catch.
Description
Technical Field
The application relates to the technical field of display, in particular to a lock catch and a display screen comprising the lock catch.
Background
Light Emitting Diode (LED) display screens have very wide application in a plurality of fields, and the display screens can be formed by splicing a plurality of display modules for displaying images, and generally adopt lock catches to splice two adjacent display modules. However, for the traditional lock catch, the two display modules spliced by the lock catch are shaken, so that the splicing stability and reliability of the whole display screen are affected.
Disclosure of Invention
The invention solves the technical problem of how to improve the stability and the reliability of the lock catch in the locking state.
A latch for connecting a first article to a second article, comprising:
the first locking mechanism comprises a first locking seat and an unlocking piece, wherein the first locking seat is used for being fixed on a first object, and the unlocking piece can move relative to the first locking seat to form a first position and a second position; and
the second locking mechanism comprises a second lock base, a lock rod, a transmission piece and a control component, wherein the second lock base is fixed on the second object, the lock rod is connected with the transmission piece and can slide relative to the second lock base along with the transmission piece, the control component is fixedly connected with the lock rod, and the control component can drive the lock rod to move relative to the transmission piece;
when the unlocking piece is at the first position, the locking rod is clamped with the unlocking piece to press the unlocking piece between the locking rod and the first locking seat so as to lock and fix the first object and the second object; when the locking lever is relative the driving medium moves, and will after the unlocking piece moved to the second position, the unlocking piece with the locking lever released the joint to unblock first article and second article.
In one embodiment, the lock rod comprises a first end and a second end, the first end can be clamped with the unlocking piece, and the second end is fixed on the control component;
after the first object and the second object are unlocked, the lock rod can move relative to the second lock seat in the direction away from the first locking mechanism, so that the first end is hidden.
In one embodiment, after the lock rod moves relative to the second lock seat in a direction away from the first locking mechanism, the first end is hidden in the second object, or the first end is hidden in the second lock seat.
In one embodiment, an insertion hole and a sliding cavity which are communicated with each other are formed in the first lock seat, the lock rod is inserted into the insertion hole, the unlocking piece is matched with the sliding cavity and is provided with a through hole for the lock rod to penetrate through, the surface of the lock rod is sunken to form an annular groove, and when the unlocking piece slides to the first position in the sliding cavity, a part of the unlocking piece is inserted into the annular groove.
In one embodiment, the through hole comprises a first unit hole and a second unit hole which are communicated with each other, the second unit hole is formed by recessing part of the side wall of the first unit hole, and the cross-sectional dimension of the first unit hole is larger than that of the lock rod; when the unlocking piece is located at the first position, the side wall of the second unit hole is abutted against the bottom wall of the annular groove, and the side wall of the annular groove is abutted against the surface of the unlocking piece.
In one embodiment, the first locking mechanism further includes a first elastic member accommodated in the sliding cavity, and the first elastic member can be pressed between the unlocking member and the first lock seat.
In one embodiment, the first locking mechanism further comprises a second elastic member and a top support member, the top support member is in sliding fit with the insertion hole, and the second elastic member is located in the insertion hole and can be pressed between the top support member and the first locking seat; when the unlocking piece is positioned at the first position, the lock rod overcomes the elasticity of the second elastic piece to press the top supporting piece to withdraw from the through hole; when the unlocking piece is in the second position, a part of the top support piece is inserted into the through hole and abuts against between the lock rod and the unlocking piece.
In one embodiment, a stepped hole is formed in the top support, and the lock rod can be inserted into the stepped hole and can abut against a stepped surface of the stepped hole.
In one embodiment, the unlocking member includes an insertion portion that can be inserted into the annular groove, and the insertion portion has a thickness smaller than a width of the annular groove in the axial direction of the lock rod.
In one embodiment, the second lock seat is provided with a through hole, the transmission member is slidably sleeved in the through hole, an inner transmission thread is arranged on the inner surface of the transmission member, and an outer transmission thread meshed with the inner transmission thread is arranged on the surface of the lock rod.
In one embodiment, the transmission part includes a first transmission portion and a second transmission portion, the first transmission portion and the second transmission portion are of a cylindrical structure, in the circumferential direction of the first transmission portion, the second transmission portion protrudes out of the first transmission portion, the first transmission portion is sleeved in the second lock seat, and the second transmission portion and the second lock seat can be in butt joint.
In one embodiment, a groove extending along the axial direction of the lock rod is formed in the outer surface of the first transmission part, and a guide protruding strip is arranged on the second lock seat and is in sliding fit with the groove.
In one embodiment, the through hole is a stepped hole, and the second lock seat comprises a stepped surface located in the through hole; the second locking mechanism further comprises a third elastic piece, one end of the third elastic piece is connected with the step surface in an abutting mode, and the other end of the third elastic piece is connected with the second transmission portion in an abutting mode.
In one embodiment, the control assembly comprises a mounting seat and a ratchet rod, the ratchet rod is rotatably connected with the mounting seat, the mounting seat is fixedly connected with the lock rod, ratchet teeth are arranged on the outer surface of the transmission part, and the ratchet rod is matched with the ratchet teeth.
In one embodiment, the control assembly further includes a torsion spring sleeved on the ratchet rod, one torsion arm of the torsion spring abuts against the mounting seat, and the other torsion arm of the torsion spring abuts against the ratchet rod.
A display screen comprises a lock catch and at least two display modules, wherein the lock catch is connected between every two adjacent display modules.
One technical effect of one embodiment of the invention is that: when the unlocking piece is in the first position, locking lever and unlocking piece joint, the relative driving medium motion of locking lever will unlock the piece and support and press between locking lever and first lock seat, the driving medium prevents the control assembly motion, thereby prevent the locking lever from continuing the motion, in order to maintain the joint relation between locking lever and the unlocking piece, and make the unlocking piece support all the time and press between locking lever and first lock seat, thereby improve stability and the reliability of hasp under the locking state, prevent to produce between first article and the second article and rock.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1a is a perspective view of an embodiment of a latch at an angle;
FIG. 1b is a perspective view of the latch of FIG. 1a in an unlocked state;
FIG. 2 is a perspective view of the latch of FIG. 1a at another angle;
FIG. 3 is a cross-sectional view of the latch of FIG. 1a with the unlatching member in a second position;
FIG. 4 is a cross-sectional view of the latch of FIG. 1a with the unlatching member in a first position;
FIG. 5 is a cross-sectional perspective view of the latch of FIG. 1a with the first latch structure hidden;
FIG. 6 is a further perspective view of the latch of FIG. 1a at an angle, wherein the second latch base and the mounting base are removed;
FIG. 7 is a perspective view of the partial structure of the latch of FIG. 6 at another angle;
FIG. 8 is a perspective view of the locking bar of the latch of FIG. 1 a;
FIG. 9 is a perspective view of a driving member of the shackle shown in FIG. 1 a;
FIG. 10 is a perspective view of the locking lever of FIG. 8 and the transmission member of FIG. 9 in an assembled state;
FIG. 11 is a perspective view of an unlocking member of the latch of FIG. 1 a;
fig. 12 is a perspective view of a second lock housing of the latch of fig. 1 a.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "inner", "outer", "left", "right" and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Referring to fig. 1a and 2, a latch 10 according to an embodiment of the present invention includes a first locking mechanism 100, a second locking mechanism 300, and a lock lever 200 (shown in fig. 3). The first locking mechanism 100 is mounted on a first object and both the second locking mechanism 300 and the locking bar 200 are mounted on a second object. In one embodiment, the first object is a first display module and the second object is a second display module.
Referring to fig. 2 to 4 and 8, in some embodiments, the locking rod 200 may be substantially a round rod, and includes a first end 201 and a second end 202, wherein a surface of the first end 201 is recessed to form an annular groove 210 extending along a circumferential direction of the locking rod 200, and the annular groove 210 is recessed by a set depth along a radial direction of the locking rod 200. The annular groove 210 has a certain width in the axial direction of the locking bar 200. The second end 202 has an external transmission thread 220 on the surface, and the external transmission thread 220 and the internal transmission thread 321 on the second lock 300 can be engaged with each other, i.e. the lock rod 200 and the second lock 300 are both in a thread transmission relationship with each other through the external transmission thread 220 and the internal transmission thread 321.
Referring to fig. 1a to 4, in some embodiments, the first locking mechanism 100 includes a first lock base 110, an unlocking member 120, a first elastic member 150 (shown in fig. 6), a second elastic member 160, and a top support member 170. The first lock base 110 is directly fixed to the first object, for example, the first lock base and the first object may be fixed by a bolt connection. The first lock base 110 has an insertion hole 102 and a sliding cavity 101 formed therein, the insertion hole 102 may be substantially circular and extend in a vertical direction, and the insertion hole 102 penetrates through a surface of the first lock base 110 and communicates with the sliding cavity 101, so that the lock lever 200 is inserted into the insertion hole 102 and into the sliding cavity 101. The sliding chamber 101 may be substantially flat and extend in a horizontal direction.
Referring to fig. 3, 4, 6 and 7, in some embodiments, the unlocking element 120 includes an insertion portion 140 and a push-pull portion 130 connected to each other, and the insertion portion 140 and the push-pull portion 130 may be substantially plate-shaped structures, and are bent to form an included angle therebetween, such as an included angle of 90 °. The insertion part 140 is slidably engaged with the sliding cavity 101, and the push-pull part 130 is located outside the sliding cavity 101. The first elastic member 150 may be a spring, the first elastic member 150 is accommodated in the sliding cavity 101, one end of the first elastic member 150 is connected to the first lock seat 110, the other end of the first elastic member 150 is connected to the insertion portion 140, the insertion portion 140 can move in the accommodating cavity along the axial direction perpendicular to the lock rod 200 to have the first position 11 and the second position 12, that is, the unlocking member 120 can move relative to the first lock seat 110 to have the first position 11 and the second position 12. Meanwhile, the thickness of the insertion portion 140 is smaller than the width of the annular groove 210 in the axial direction of the locking bar 200.
Referring to fig. 6, 7 and 11, in some embodiments, the insertion portion 140 of the unlocking member 120 is provided with a through hole 143, and when the locking bar 200 is inserted into the insertion hole 102, the locking bar 200 can be simultaneously inserted into the through hole 143. For example, the through hole 143 may include a first unit hole 141 and a second unit hole 142, the first unit hole 141 is a circular hole, and a cross-sectional size of the first unit hole 141 is larger than a cross-sectional size of the locking lever 200, that is, a hole diameter of the first unit hole 141 is larger than a diameter of the locking lever 200, so that the locking lever 200 is smoothly inserted into the first unit hole 141. The second unit hole 142 is formed by partially recessing a side wall of the first unit hole 141 by a set depth in a radial direction of the first unit hole 141, and a side wall 142a of the second unit hole 142 may be a circular arc surface so as to conform to the bottom wall 211 of the annular groove 210.
Referring to fig. 3 and 4, in some embodiments, when the unlocking member 120 is in the first position 11, the sidewall 142a of the second unit hole 142 is abutted against the bottom wall 211 of the annular groove 210 to form an abutting relationship, and at this time, a portion of the insertion portion 140 is inserted into the annular groove 210, so that the surface of the insertion portion 140 is also abutted against the sidewall 212 of the annular groove 210 to form an abutting relationship, that is, the insertion portion 140 forms a blocking and interference effect on the lock rod 200, thereby limiting the vertical sliding of the lock rod 200 relative to the first lock seat 110, so as to achieve the locking state of the lock buckle 10. When a pushing force is applied to the pushing and pulling portion 130 by hand, the pushing and pulling portion 130 will drive the inserting portion 140 to slide to the second position 12 in the sliding cavity 101 against the elastic force of the first elastic member 150, at this time, the side wall 142a of the second unit hole 142 and the bottom wall 211 of the annular groove 210 are released from the abutting relationship, the surface of the inserting portion 140 and the side wall 212 of the annular groove 210 are also released from the abutting relationship, that is, the inserting portion 140 will not block and interfere the lock rod 200 from moving up and down relative to the first lock seat 110, so as to achieve the unlocking state of the lock buckle 10.
The top supporter 170 may be a substantially cylindrical sleeve, and a stepped hole 171 is formed in the top supporter 170, and an end (upper end) of the lock lever 200 can be inserted into the stepped hole 171, while the upper end of the lock lever 200 can abut against a stepped surface of the stepped hole 171 to apply a pushing force to the top supporter 170. The second elastic member 160 may also be a spring, an upper end of the second elastic member 160 is connected to the first holder 110, and a lower end of the second elastic member 160 is connected to the top supporter 170. The top support member 170 is located in the insertion hole 102 of the first lock base 110 and is in sliding fit with the insertion hole 102, that is, the top support member 170 can slide in the insertion hole 102 relative to the first lock base 110 along the axial direction parallel to the lock rod 200.
When the unlocking member 120 is in the unlocking state of the second position 12, the second elastic member 160 releases energy, so that the supporting member 170 moves downward, and simultaneously the supporting member 170 pushes the lock lever 200 to move downward as well. When the top supporter 170 moves until the lower end portion thereof is inserted into the first unit hole 141 of the unlocking piece 120, the lower end portion of the top supporter 170 abuts between the lock lever 200 and the insertion portion 140 of the unlocking piece 120, the lower end portion of the top supporter 170 applies a pressing force to the insertion portion 140 against the elastic force of the first elastic member 150, and the first elastic member 150 stores energy. The abutting of the supporting member 170 between the lock rod 200 and the insertion portion 140 of the unlocking member 120 will generate an interference effect, preventing the insertion portion 140 from being inserted into the annular groove 210, thereby eliminating the blocking effect of the insertion portion 140 on the up-and-down movement of the lock rod 200 and ensuring that the lock rod 200 can freely slide up and down in the insertion hole 102. In this state, the first display module and the second display module can be separated. When the lock lever 200 is pushed to move upward, the top supporter 170 will follow the lock lever 200 to move upward against the elastic force of the second elastic member 160, and the second elastic member 160 stores energy. At the moment that the lower end portion of the top supporter 170 completely disengages from the first unit hole 141, the top supporter 170 loses the interference effect on the insertion portion 140, and the first elastic member 150 releases energy to push the insertion portion 140 to slide to the first position 11, so that a portion of the insertion portion 140 is inserted into the annular groove 210, thereby limiting the up-and-down movement of the lock lever 200, and finally achieving the locking state of the buckle 10. In this state, the first display module and the second display module are locked together.
Referring to fig. 1a, 2, 5 and 6, in some embodiments, the second locking mechanism 300 comprises a second lock holder 310, a transmission member 320 and a control assembly 301, and the control assembly 301 comprises a mounting seat 330 and a ratchet rod 340. The second lock housing 310 is fixed to the second object. As shown in fig. 12, the second lock housing 310 may be substantially cylindrical, and has a step-shaped through hole 312, and a step surface 313 is disposed in the through hole. As shown in fig. 8 to 10, the lock rod 200 is disposed in the transmission member 320, the transmission member includes a first transmission portion 325 and a second transmission portion 326, the first transmission portion 325 and the second transmission portion 326 are substantially cylindrical, and the second transmission portion 326 protrudes from the first transmission portion 325 in the circumferential direction of the first transmission portion 325, that is, the diameter of the second transmission portion 326 is larger than the diameter of the first transmission portion 325. As shown in fig. 3 and 5, the first transmission portion 325 is disposed in the through hole 312 of the second lock holder 310 and can slide relative to the through hole 312. The lower end of the locking rod 200 and the mounting seat 330 may be fixedly connected by means of bolts or the like. In short, the lower end of the lock rod 200 is fixed on the mounting seat 330, a part of the upper end of the lock rod 200 is sleeved in the transmission member 320, and the top end of the lock rod 200 and the first transmission portion 325 penetrate through the through hole 312 of the second lock seat 310 and are exposed out of the second lock seat 310. A third elastic member 314, such as a spring, is disposed between the second transmission portion 326 and the second lock housing 310. The third elastic element 314 is sleeved on the outer surface of the first transmission portion 325, and has one end abutting against the stepped surface 313 and the other end abutting against the second transmission portion 326. As shown in fig. 1a and 1b, when the latch 10 fastens the first and second objects, the third elastic member 314 is in a compressed state and can accumulate an elastic force, and when the latch 10 unlocks the first and second objects, the third elastic member 314 can release the elastic force, so that the lock rod 200 moves in a direction away from the first lock seat 110, and thus an end of the lock rod 200 close to the first lock seat 110, i.e., an end away from the mounting seat 330, can be hidden in the second object or the second lock seat 310, and the lock rod 200 is prevented from being exposed and damaged. It can be understood that, when the latch 10 is used to fix the first display module and the second display module, the first display module and the second display module both include a frame body, one side of the first lock base 110 facing the second lock base 310 is fixed to the frame body of the first display module, one side of the second lock base 310 facing the first lock base 110 is fixed to the frame body of the second display module, the frame bodies of the first display module and the second display module are butted, the lock rod 200 penetrates through the frame bodies of the first display module and the second display module, and the latch 10 can fasten the frame bodies of the first display module and the second display module.
Referring to fig. 3 and 5, in some embodiments, the inner surface of the transmission member 320 is provided with an inner transmission thread 321, and since the locking rod 200 is provided with an outer transmission thread 220 on the surface close to the mounting seat 330, when the locking rod 200 is inserted into the transmission member 320, the outer transmission thread 220 of the locking rod 200 is engaged with the inner transmission thread 321 of the transmission member 320. As shown in fig. 2, a groove 322 is formed on an outer surface of the first transmission part, and the groove 322 extends along an axial direction of the lock rod 200, that is, the groove 322 extends along a vertical direction. The second lock holder 310 is provided with a guiding protrusion 311, the guiding protrusion 311 protrudes the inner surface of the second lock holder 310 along the radial direction for a set length, when the first transmission portion 325 is sleeved in the through hole 312 of the second lock holder 310, the guiding protrusion 311 is engaged with the groove 322. The guiding protrusion 311 may be a part of a screw, specifically, the screw is directly fixed to the second lock housing 310 by a threaded connection, and an end of the screw protrudes a certain length from the inner surface of the second lock housing 310 to form the guiding protrusion 311. The cooperation between the guiding protrusion 311 and the groove 322 plays two roles, one is to play a guiding role, so as to ensure that the transmission member 320 slides along the extending direction (vertical direction) of the groove 322 relative to the second lock holder 310; thereby preventing the transmission member 320 from rotating relative to the second lock holder 310. due to the limiting function of the guiding protrusion 311, the transmission member 320 cannot rotate relative to the second lock holder 310. Therefore, the transmission member 320 can only slide up and down relative to the second lock holder 310 and cannot rotate. When the installation base 330 is rotated by hand to drive the lock rod 200 to rotate, the guide convex strips 311 limit the rotation of the transmission member 320, and the lock rod 200 rotates left and right to slide up and down relative to the transmission member 320 simultaneously through the meshing transmission function of the inner transmission threads 321 and the outer transmission threads 220.
Referring to fig. 3, 5 and 6, in some embodiments, the control assembly 301 further includes a torsion spring 350, the ratchet rod 340 of the control assembly 301 may be rotatably connected to the mounting seat 330 through a rotating shaft, a middle portion of the torsion spring 350 may be sleeved on the rotating shaft of the ratchet rod 340, one torsion arm of the torsion spring 350 abuts against the mounting seat 330, and another torsion arm of the torsion spring 350 abuts against the ratchet rod 340. The second transmission part 326 has ratchet teeth 323 formed on an outer surface thereof, and one end of the ratchet lever 340 is engaged with the ratchet teeth 323. When the other end of the ratchet rod 340 is pressed by hand to overcome the elastic force of the torsion spring 350 and rotate to release the engagement between the ratchet rod 340 and the ratchet teeth 323, the mounting seat 330 can drive the lock rod 200 to rotate left and right (i.e., rotate counterclockwise or clockwise) in two directions relative to the transmission member 320; when the other end of the ratchet rod 340 stops being pressed, under the action of the restoring force of the torsion spring 350, one end of the ratchet rod 340 will always keep engaged with the ratchet teeth 323, and at this time, under the restriction action of the ratchet rod 340 and the ratchet teeth 323, the mounting seat 330 can only bring the lock rod 200 to rotate in one direction relative to the driving member 320, for example, only counterclockwise but not clockwise.
The operation steps and the working principle of the shackle 10 of the above embodiment during locking and unlocking are described as follows:
in an initial state where the first and second objects are not spliced and separated, with respect to the first locking mechanism 100 on the first object, the lower end portion of the top support 170 is inserted into the first unit hole 141 of the unlocking member 120 under the elastic force of the second elastic member 160, so as to eliminate the interference of the insertion portion 140, so that the subsequent locking lever 200 is smoothly inserted into the insertion hole 102 and the first unit hole 141.
When the first and second objects need to be spliced by the lock buckle 10, in a first step, the first and second objects are abutted to each other, so that the lock lever 200 is simultaneously inserted into the insertion hole 102 of the first lock base 110 and the first unit hole 141 of the insertion part 140, at this time, the top end of the lock lever 200 is engaged with the stepped hole 171 of the top support member 170, and an upward pushing force is applied to the top support member 170 through the stepped surface, so that the top support member 170 moves upward against the elastic force of the second elastic member 160, and then the lower end portion of the top support member 170 completely exits from the engagement with the first unit hole 141. At the moment when the top support 170 exits the first unit hole 141, due to the elimination of the interference effect of the top support 170, the first elastic member 150 releases energy and pushes the insertion portion 140 to slide in the sliding cavity 101 to the first position 11, so that a part of the insertion portion 140 is inserted into the annular groove 210 of the lock rod 200, at this time, the bottom wall 211 of the annular groove 210 is pressed against the side wall 142a of the second unit hole 142, since the thickness of the insertion portion 140 is smaller than the width of the annular groove 210, the insertion portion 140 and the annular groove 210 form a loose fit relationship, the limiting effect of the insertion portion 140 is limited, the lock rod 200 can still slide up and down at a small distance relative to the first lock seat 110, the lock 10 is in a half-locked state, and the first object and the second object do not form a stable and reliable splicing relationship. Secondly, the mounting seat 330 is rotated counterclockwise by a certain angle, the locking rod 200 moves downward relative to the first lock seat 110 through the screw transmission of the locking rod 200 and the transmission member 320, the locking rod 200 also drives the transmission member 320 to move downward relative to the second lock seat 310, the third elastic member 314 is compressed, at this time, the sidewall 212 (i.e., the upper sidewall) of the annular groove 210 tightly abuts against the surface (upper surface) of the insertion portion 140, and obviously, the insertion portion 140 tightly abuts against between the locking rod 200 and the first lock seat 110, so that the locking rod 200 and the unlocking member 120 form a clamping relationship, the lock catch 10 is in a completely locked state, and the first object and the second object do not shake to completely form a stable and reliable splice.
Due to the limiting function of the ratchet rod 340, the installation seat 330 cannot drive the lock rod 200 to rotate clockwise, and the lock rod 200 cannot move upward relative to the first lock seat 110, so that the abutting force between the sidewall 212 of the annular groove 210 and the surface of the insertion portion 140 cannot be released. Because the sidewall 212 of the annular groove 210 and the insertion portion 140 are tightly abutted to generate a large static friction force, the external force is hard to overcome the static friction force to push the insertion portion 140 to move, so that the insertion portion 140 is always maintained in an interference state, the lock rod 200 is prevented from moving up and down, that is, the first object and the second object are prevented from shaking, and the stability and reliability of the lock catch 10 in the locking state are ensured. Meanwhile, the structure of the lock catch 10 is relatively simple, and the manufacturing cost is relatively low.
When the first and second objects need to be unlocked and disassembled through the latch 10, in the first step, the ratchet rod 340 is pressed against the elastic force of the torsion spring 350, so that the ratchet rod 340 is disengaged from the ratchet teeth 323, the ratchet rod 340 will eliminate the restriction effect on the unidirectional rotation of the mounting seat 330, then the mounting seat 330 drives the lock rod 200 to rotate clockwise by a set angle, through the spiral transmission of the lock rod 200 and the transmission member 320, the lock rod 200 moves upward relative to the first lock seat 110, meanwhile, the transmission member 320 moves downward relative to the mounting seat 330, and a gap exists between the bottom end of the second transmission portion 326 and the mounting seat 330, so that the transmission member 320 moves downward relative to the mounting seat 330 to provide a space. Then, the side wall 212 (i.e., the upper side wall) of the annular groove 210 is away from the surface (upper surface) of the insertion part 140, i.e., the abutting relationship therebetween is released, so that the static friction force acting on the insertion part 140 disappears. At this time, a gap is formed between the sidewall 212 of the annular groove 210 and the insertion portion 140, but the bottom wall 211 of the annular groove 210 still presses against the sidewall 142a of the second unit hole 142, so the first object and the second object can move up and down within the gap, the interference effect of the insertion portion 140 is not completely lost, the lock rod 200 cannot be pulled out from the first unit hole 141, the lock catch 10 is in a semi-unlocked state, and the first object cannot be detached from the second object. Second, since the static friction force acting on the insertion part 140 disappears, the push-pull part 130 can be pushed by hand to move the insertion part 140 to the second position 12 against only the elastic force of the first elastic member 150, and at this time, the side wall 142a of the second unit hole 142 and the bottom wall 211 of the annular groove 210 are separated from each other by the abutting relationship, the side wall 212 of the annular groove 210 is not in contact with the surface of the insertion part 140, the interference of the insertion part 140 is eliminated, the second elastic member 160 releases energy, the second elastic member 160 pushes the top support member 170 to move downward to be inserted into the first unit hole 141, meanwhile, the locking rod 200, the transmission member 320 and the control assembly 301 move downwards relative to the second lock base 310, so that the locking rod 200 is released from the locking and unlocking member 120, the locking buckle 10 is in a complete unlocking state, the first article may be completely unloaded from the second form thereby releasing the splice therebetween. And because the elastic force accumulated by the third elastic member 314 is released, the lock rod 200 can move downward, so that the end portion of the lock rod 200 far away from the mounting seat 330, i.e., the top end of the lock rod 200, can move into the second object and even move into the through hole 312 of the second lock seat 310, and thus the top end of the lock rod 200 does not protrude out of the second object or the second lock seat 310, so that the top end of the lock rod 200 is hidden, and the top end of the lock rod 200 is prevented from being damaged.
The invention further provides a display screen which comprises the lock catch 10 and at least two display modules, wherein the lock catch 10 is connected between every two adjacent display modules, so that the at least two display modules with smaller display areas are spliced to form the display screen with a relatively larger display area. Through setting up above-mentioned hasp 10, can avoid two display module assemblies of mutual concatenation to produce and rock, improve the stability and the reliability of display screen concatenation.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (16)
1. A latch for connecting a first object to a second object, comprising:
the first locking mechanism comprises a first locking seat and an unlocking piece, wherein the first locking seat is used for being fixed on a first object, and the unlocking piece can move relative to the first locking seat to form a first position and a second position; and
the second locking mechanism comprises a second lock base, a lock rod, a transmission piece and a control component, wherein the second lock base is fixed on the second object, the lock rod is connected with the transmission piece and can slide relative to the second lock base along with the transmission piece, the control component is fixedly connected with the lock rod, and the control component can drive the lock rod to move relative to the transmission piece;
when the unlocking piece is at the first position, the locking rod is clamped with the unlocking piece to press the unlocking piece between the locking rod and the first locking seat so as to lock and fix the first object and the second object; when the locking lever is relative the driving medium moves, and will after the unlocking piece moved to the second position, the unlocking piece with the locking lever released the joint to unblock first article and second article.
2. The latch of claim 1, wherein the locking bar includes a first end and a second end, the first end capable of being snapped into the unlatching member, the second end secured to the control assembly;
after the first object and the second object are unlocked, the lock rod can move relative to the second lock seat in the direction away from the first locking mechanism, so that the first end is hidden.
3. A latch according to claim 2, wherein the first end is concealed within the second object or the first end is concealed within the second lock receptacle after the locking bar moves relative to the second lock receptacle in a direction away from the first locking mechanism.
4. The lock catch according to claim 1, wherein the first lock holder is provided therein with a jack and a sliding cavity which are communicated with each other, the lock rod is inserted into the jack, the unlocking member is matched with the sliding cavity and provided with a through hole for the lock rod to pass through, the surface of the lock rod is recessed to form an annular groove, and when the unlocking member slides in the sliding cavity to the first position, a part of the unlocking member is inserted into the annular groove.
5. A latch according to claim 4, wherein the through-hole comprises a first unit hole and a second unit hole which are communicated with each other, the second unit hole is formed by a portion of the side wall of the first unit hole being recessed, and the cross-sectional dimension of the first unit hole is larger than that of the locking bar; when the unlocking piece is located at the first position, the side wall of the second unit hole is abutted against the bottom wall of the annular groove, and the side wall of the annular groove is abutted against the surface of the unlocking piece.
6. A latch as defined in claim 4, wherein the first latching mechanism further comprises a first resilient member received in the sliding cavity, the first resilient member being capable of being compressed between the unlatching member and the first latch seat.
7. The latch of claim 4, wherein the first locking mechanism further comprises a second elastic member and a top supporting member, the top supporting member is slidably engaged with the insertion hole, and the second elastic member is located in the insertion hole and can be pressed between the top supporting member and the first lock seat; when the unlocking piece is positioned at the first position, the lock rod overcomes the elasticity of the second elastic piece to press the top supporting piece to withdraw from the through hole; when the unlocking piece is in the second position, a part of the top support piece is inserted into the through hole and abuts against between the lock rod and the unlocking piece.
8. A latch according to claim 7, wherein the top stay has a stepped bore formed therein, the locking bar being insertable in the stepped bore and being capable of abutting a stepped surface of the stepped bore.
9. A latch as claimed in claim 4, wherein the unlocking member comprises an insert insertable in the annular groove, the insert having a thickness less than the width of the annular groove in the axial direction of the locking bar.
10. A latch according to claim 1, wherein the second latch seat defines a through hole, the driving member is slidably disposed in the through hole, the driving member has an inner driving thread on an inner surface thereof, and the lock rod has an outer driving thread on a surface thereof for engaging with the inner driving thread.
11. A latch according to claim 10, wherein the transmission member comprises a first transmission portion and a second transmission portion, the first transmission portion and the second transmission portion are cylindrical structures, and the second transmission portion protrudes from the first transmission portion in the circumferential direction of the first transmission portion, the first transmission portion is sleeved in the second lock seat, and the second transmission portion and the second lock seat can be butted.
12. A latch according to claim 11, wherein the outer surface of the first transmission portion is provided with a groove extending along the axial direction of the lock rod, and the second lock seat is provided with a guiding protrusion, and the guiding protrusion is slidably engaged with the groove.
13. A latch according to claim 11, wherein the through-hole is a stepped hole and the second latch seat includes a stepped surface located within the through-hole; the second locking mechanism further comprises a third elastic piece, one end of the third elastic piece is connected with the step surface in an abutting mode, and the other end of the third elastic piece is connected with the second transmission portion in an abutting mode.
14. The latch of claim 1 wherein the control assembly includes a mounting base and a ratchet rod, the ratchet rod is rotatably connected to the mounting base, the mounting base is fixedly connected to the lock rod, the outer surface of the driving member has ratchet teeth, and the ratchet rod is engaged with the ratchet teeth.
15. The latch of claim 14 wherein the control assembly further comprises a torsion spring disposed about the ratchet bar, one of the torsion arms of the torsion spring abutting the mounting receptacle and the other of the torsion arms of the torsion spring abutting the ratchet bar.
16. A display screen, comprising the latch of any one of claims 1 to 15 and at least two display modules, wherein the latch is connected between two adjacent display modules.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911399569.9A CN111048003B (en) | 2019-12-30 | 2019-12-30 | Lock catch and display screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911399569.9A CN111048003B (en) | 2019-12-30 | 2019-12-30 | Lock catch and display screen |
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| CN111048003A true CN111048003A (en) | 2020-04-21 |
| CN111048003B CN111048003B (en) | 2024-08-16 |
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| CN201911399569.9A Active CN111048003B (en) | 2019-12-30 | 2019-12-30 | Lock catch and display screen |
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| WO2023010954A1 (en) * | 2021-08-06 | 2023-02-09 | 深圳市光祥科技股份有限公司 | Arc-shaped lock and display screen assembly |
| CN116637312A (en) * | 2023-05-24 | 2023-08-25 | 广东电网有限责任公司 | Fool-proof self-locking device for flexible guide rail |
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|---|---|
| CN111048003B (en) | 2024-08-16 |
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