CN111292630A - Lock catch and display screen - Google Patents
Lock catch and display screen Download PDFInfo
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- CN111292630A CN111292630A CN202010122514.XA CN202010122514A CN111292630A CN 111292630 A CN111292630 A CN 111292630A CN 202010122514 A CN202010122514 A CN 202010122514A CN 111292630 A CN111292630 A CN 111292630A
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- lock
- rod
- seat
- locking
- hole
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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
- G09F9/302—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 characterised by the form or geometrical disposition of the individual elements
- G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
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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
Abstract
The invention relates to a lock catch and a display screen, wherein the lock catch comprises: the first locking mechanism comprises a first locking seat and an unlocking piece, the unlocking piece can move relative to the first locking seat and has a first position and a second position, and the first locking seat is used for being fixed on a first display module; the lock rod is inserted into the first lock seat and can be clamped with the unlocking piece; and second locking mechanism, including second lock seat, driving medium and control assembly, the locking lever with the driving medium is connected and can be followed the driving medium is relative the second lock seat slides, control assembly with locking lever fixed connection, the second lock seat is fixed on the second display module assembly, work as the unlocking piece is when the primary importance, the locking lever with the unlocking piece joint, just the locking lever will the unlocking piece supports and presses between locking lever and first lock seat, the driving medium prevents the control assembly motion to improve the stability and the reliability of hasp locking.
Description
Technical Field
The invention relates to the technical field of display, in particular to a lock catch and a display screen comprising the lock catch.
Background
An LED (Light Emitting Diode) display screen has very wide application in a plurality of fields, and the display screen can be formed by splicing a plurality of display modules for displaying images, and two adjacent display modules are generally spliced by using latches. 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, comprising:
the first locking mechanism comprises a first locking seat and an unlocking piece, the unlocking piece can move relative to the first locking seat and has a first position and a second position, and the first locking seat is used for being fixed on a first display module;
the lock rod is inserted into the first lock seat and can be clamped with the unlocking piece; and
the second locking mechanism comprises a second lock seat, a transmission part and a control component, the lock rod is connected with the transmission part and can slide relative to the second lock seat along with the transmission part, the control component is fixedly connected with the lock rod, the second lock seat is fixed on the second display module, and the control component can drive the lock rod to move relative to the transmission part;
when the unlocking piece is at the first position, the lock rod is clamped with the unlocking piece, the lock rod moves relative to the transmission piece and presses the unlocking piece between the lock rod and the first lock seat, and the transmission piece prevents the control assembly from moving; when the locking rod is relative the driving medium motion will after the unlocking piece moved the second position, the unlocking piece with the locking rod release the joint.
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 transmission member is slidably sleeved in the second lock seat, an inner transmission thread is arranged on the inner surface of the transmission member, and an outer transmission thread engaged with the inner transmission thread is arranged on the surface of the lock rod.
In one embodiment, the outer surface of the transmission member is provided with a groove extending along the axial direction of the lock rod, and the second lock seat is provided with a guide convex strip in sliding fit with the groove.
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 the 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 deblocking part is in the primary importance, locking lever and deblocking part joint, the relative driving medium motion of locking lever will be released the deblocking part and support and press between locking lever and first lock seat, the driving medium prevents the control assembly motion, thereby prevent the locking lever continuation motion, in order to maintain the joint relation between locking lever and the deblocking part, and make the deblocking part support all the time and press between locking lever and first lock seat, thereby improve the stability and the reliability of hasp under the locking state, prevent to produce between first display module and the second display module and rock.
Drawings
Fig. 1 is a schematic perspective view of a lock according to an embodiment;
FIG. 2 is a cross-sectional view of the latch of FIG. 1 in an unlocked position;
FIG. 3 is a cross-sectional view of the latch of FIG. 1 in a locked condition;
FIG. 4 is a partial schematic structural view of the lock assembly of FIG. 1 with a portion of the first lock bracket removed;
FIG. 5 is a partial schematic structural view of FIG. 4 with the second lock bracket and the mounting bracket removed;
FIG. 6 is a perspective view of the locking lever of FIG. 1;
FIG. 7 is a schematic perspective view of the transmission member of FIG. 1;
fig. 8 is a perspective view of the unlocking member of fig. 1.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention 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. 1, 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 bar 200. The first locking mechanism 100 is mounted on the first display module, and both the second locking mechanism 300 and the lock bar 200 are mounted on the second display module.
Referring to fig. 1 to 3 and 6 together, in some embodiments, the locking rod 200 may be substantially a circular rod shape, and a circumferential groove 210 extending along the circumference of the locking rod 200 is formed in a surface of the locking rod 200 adjacent to the upper end thereof, and the circumferential groove 210 is recessed by a set depth in the 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 surface near the lower end of the lock rod 200 is provided with an external transmission thread 220, and the external transmission thread 220 and an internal transmission thread 321 arranged on the second locking mechanism 300 can be mutually engaged, i.e. the lock rod 200 and the second locking mechanism 300 are in a mutual thread transmission relationship through the external transmission thread 220 and the internal transmission thread 321.
Referring to fig. 1 to 5 and fig. 8, in some embodiments, the first locking mechanism 100 includes a first lock base 110, an unlocking element 120, a first elastic element 150, a second elastic element 160 and a top support element 170. The first lock base 110 is directly fixed on the first display module, for example, the first lock base and the first display module can be fixed by bolts. The first lock base 110 is internally provided with an insertion hole 102 and a sliding cavity 101 which are communicated with each other, the insertion hole 102 can be roughly in a circular hole shape and extends along the vertical direction, the insertion hole 102 is a blind hole, and one end of the insertion hole penetrates through the surface of the first lock base 110, so that the lock rod 200 is inserted into the insertion hole 102; the sliding chamber 101 may be substantially flat and extend in a horizontal direction.
The unlocking member 120 includes an inserting portion 140 and a pushing and pulling portion 130 connected to each other, and both the inserting portion 140 and the pushing and pulling portion 130 may be substantially plate-shaped structures, and are bent to form a certain included angle, for example, 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 element 150 may be a spring, the first elastic element 150 is accommodated in the sliding cavity 101, one end of the first elastic element 150 is connected to the first lock seat 110, the other end of the first elastic element 150 is connected to the inserting portion 140, the inserting portion 140 can move in the accommodating cavity to have the first position 11 and the second position 12, that is, the unlocking element 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.
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.
When the unlocking member 120 is at 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, and at this time, a part 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, that is, the insertion portion 140 performs a blocking and interference action on the lock rod 200, thereby limiting the vertical sliding of the lock rod 200 relative to the first lock base 110, and realizing 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 seat 110 and is in sliding fit with the insertion hole 102, that is, the top support member 170 can slide up and down in the insertion hole 102 relative to the first lock seat 110.
When the unlocking unit 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 meanwhile, the supporting member 170 pushes the lock rod 200 to move downward, when the supporting member 170 moves until the lower end portion thereof is inserted into the first unit hole 141 of the unlocking unit 120, the lower end portion of the supporting member 170 abuts between the lock rod 200 and the insertion portion 140 of the unlocking unit 120, the lower end portion of the supporting member 170 applies a pressing force to the insertion portion 140 against the elastic force of the first elastic member 150, the first elastic member 150 stores energy, so that the supporting member 170 generates an interference effect, the insertion portion 140 is prevented from being inserted into the annular groove 210, the blocking effect of the insertion portion 140 on the up-and-down movement of the lock rod 200 is eliminated, and the lock rod 200 can be ensured to freely slide up and down in the insertion hole 102. 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, the second elastic member 160 stores energy, at the moment that the lower end portion of the top supporter 170 is completely separated from the first unit hole 141, the top supporter 170 loses the interference effect on the insertion part 140, the first elastic member 150 will release energy to push the insertion part 140 to slide to the first position 11, so that a portion of the insertion part 140 is inserted into the annular groove 210, thereby limiting the up-and-down movement of the lock lever 200, and finally realizing the locking state of the buckle 10.
Referring to fig. 1 to 5 and fig. 7, in some embodiments, the second locking mechanism 300 includes a second lock housing 310, a transmission member 320 and a control assembly 301, and the control assembly 301 includes a mounting housing 330 and a ratchet rod 340. The second lock holder 310 is fixed on the second display module, the second lock holder 310 may be substantially a cylindrical structure, the lock rod 200 is inserted into the second lock holder 310, and the lower end of the lock rod 200 and the mounting seat 330 may be fixedly connected by bolts or the like. The transmission member 320 may also be a substantially cylindrical structure, and the transmission member 320 is slidably sleeved in the second lock holder 310, that is, the transmission member 320 can slide relative to the second lock holder 310, and similarly, the lock rod 200 is inserted into the transmission member 320. In short, the lower end of the lock rod 200 is fixed on the mounting seat 330, and the upper end of the lock rod 200 passes through the transmission member 320 and the second lock seat 310 and is exposed out of the second lock seat 310.
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. The transmission member 320 has a groove 322 formed on an outer surface thereof, 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, and when the transmission member 320 is sleeved in 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; the driving member 320 is prevented from rotating relative to the second lock holder 310, and the driving member 320 cannot rotate relative to the second lock holder 310 due to the limiting function of the guiding protrusion 311. 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.
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 via a rotating shaft, the 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 the other torsion arm of the torsion spring 350 abuts against the ratchet rod 340. The driving member 320 is provided on an outer surface thereof with ratchet teeth 323, 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 the initial state that the first display module and the second display module are not spliced and separated, for the first locking mechanism 100 on the first display module, under the elastic force of the second elastic member 160, the lower end portion of the top support member 170 is inserted into the first unit hole 141 of the unlocking member 120, so as to eliminate the interference of the insertion portion 140, and the subsequent locking lever 200 is smoothly inserted into the insertion hole 102 and the first unit hole 141.
When the first display module and the second display module need to be spliced through the latch 10, in a first step, the first display module and the second display module 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 portion 140, at this time, the top end of the lock lever 200 is matched 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 matching with the first unit hole 141. At the moment that 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 abuts 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 catch 10 is in a half-locked state, and the first display module and the second display module do not form a stable and reliable splicing relationship. Secondly, the mounting base 330 is rotated counterclockwise by a certain angle, the locking rod 200 moves downward relative to the first lock base 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 base 310, 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, obviously, the insertion portion 140 tightly abuts against between the locking rod 200 and the first lock base 110, so far, the locking rod 200 and the unlocking member 120 form a clamping relationship, the latch 10 is in a completely locked state, and the first display module and the second display module 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 display module and the second display module are prevented from shaking, and the stability and reliability of the lock catch 10 in a 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 display module and the second display module 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 eliminates the limiting effect on the unidirectional rotation of the mounting seat 330, then the mounting seat 330 drives the lock rod 200 to rotate clockwise for 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, so that the side wall 212 (i.e., the upper side wall) of the annular groove 210 is far away from the surface (upper surface) of the insertion part 140, i.e., the abutting relation between the side wall 212 and the upper surface is removed, and thus 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 display module and the second display module can move up and down within the gap, the interference effect of the insertion portion 140 does not completely disappear, the lock rod 200 cannot be pulled out from the first unit hole 141, the latch 10 is in a half-unlocked state, and the first display module cannot be detached from the second display module. 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 display module can be completely unloaded from the second display module, so that mutual splicing between the first display module and the second display module is released.
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 invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A latch, comprising:
the first locking mechanism comprises a first locking seat and an unlocking piece, the unlocking piece can move relative to the first locking seat and has a first position and a second position, and the first locking seat is used for being fixed on a first display module;
the lock rod is inserted into the first lock seat and can be clamped with the unlocking piece; and
the second locking mechanism comprises a second lock seat, a transmission part and a control component, the lock rod is connected with the transmission part and can slide relative to the second lock seat along with the transmission part, the control component is fixedly connected with the lock rod, the second lock seat is fixed on the second display module, and the control component can drive the lock rod to move relative to the transmission part;
when the unlocking piece is at the first position, the lock rod is clamped with the unlocking piece, the lock rod moves relative to the transmission piece and presses the unlocking piece between the lock rod and the first lock seat, and the transmission piece prevents the control assembly from moving; when the locking rod is relative the driving medium motion will after the unlocking piece moved the second position, the unlocking piece with the locking rod release the joint.
2. 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.
3. A latch according to claim 2, 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.
4. A latch as defined in claim 2, 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.
5. The latch of claim 2, wherein the first locking mechanism further comprises a second elastic member and a top supporting member, the top supporting 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 supporting member and the first latch 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. A step hole is formed in the top support piece, and the lock rod can be inserted into the step hole and can be abutted against the step surface of the step hole.
6. A latch as defined in claim 2, wherein the unlocking member includes an insertion portion insertable in the annular groove, the insertion portion having a thickness smaller than a width of the annular groove in the axial direction of the lock rod.
7. A latch as defined in claim 1, wherein the driving member is slidably received in the second latch seat, the driving member has an inner driving thread on an inner surface thereof, and the locking bar has an outer driving thread on a surface thereof for engaging with the inner driving thread.
8. A lock catch according to claim 1, wherein the outer surface of the transmission member is provided with a groove extending axially along the lock rod, and the second lock holder is provided with a guiding protrusion which is slidably engaged with the groove.
9. The latch of claim 1, wherein the control assembly comprises a mounting seat and a ratchet rod, the ratchet rod is rotatably connected to the mounting seat, the mounting seat is fixedly connected to the lock rod, the outer surface of the transmission member is provided with ratchet teeth, the ratchet rod is matched with the ratchet teeth, the control assembly further comprises 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.
10. A display screen, comprising the latch of any one of claims 1 to 9 and at least two display modules, wherein the latch is connected between two adjacent display modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122514.XA CN111292630A (en) | 2020-02-27 | 2020-02-27 | Lock catch and display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010122514.XA CN111292630A (en) | 2020-02-27 | 2020-02-27 | Lock catch and display screen |
Publications (1)
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| CN111292630A true CN111292630A (en) | 2020-06-16 |
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| CN202010122514.XA Pending CN111292630A (en) | 2020-02-27 | 2020-02-27 | Lock catch and display screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113674640A (en) * | 2021-07-20 | 2021-11-19 | 深圳金立翔视效科技有限公司 | LED display module box and LED display module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427753A (en) * | 2015-11-17 | 2016-03-23 | 深圳市易事达电子有限公司 | Hanging lock device and LED display screen |
| CN207517309U (en) * | 2017-12-15 | 2018-06-19 | 深圳市洲明科技股份有限公司 | Auxiliary lifting splicing body and LED display |
| CN111048003A (en) * | 2019-12-30 | 2020-04-21 | 利亚德智慧显示(深圳)有限公司 | Lock catch and display screen |
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2020
- 2020-02-27 CN CN202010122514.XA patent/CN111292630A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105427753A (en) * | 2015-11-17 | 2016-03-23 | 深圳市易事达电子有限公司 | Hanging lock device and LED display screen |
| CN207517309U (en) * | 2017-12-15 | 2018-06-19 | 深圳市洲明科技股份有限公司 | Auxiliary lifting splicing body and LED display |
| CN111048003A (en) * | 2019-12-30 | 2020-04-21 | 利亚德智慧显示(深圳)有限公司 | Lock catch and display screen |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113674640A (en) * | 2021-07-20 | 2021-11-19 | 深圳金立翔视效科技有限公司 | LED display module box and LED display module |
| CN113674640B (en) * | 2021-07-20 | 2023-12-05 | 深圳金立翔视效科技有限公司 | LED display module assembly box and LED display module assembly |
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Application publication date: 20200616 |