CN113066387A - Arc lock and LED display screen - Google Patents
Arc lock and LED display screen Download PDFInfo
- Publication number
- CN113066387A CN113066387A CN202110326401.6A CN202110326401A CN113066387A CN 113066387 A CN113066387 A CN 113066387A CN 202110326401 A CN202110326401 A CN 202110326401A CN 113066387 A CN113066387 A CN 113066387A
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- Prior art keywords
- mounting seat
- connecting rod
- contact panel
- mounting
- lock body
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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
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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 an arc lock and an LED display screen, which comprise a first lock body and a second lock body; the first lock body comprises a mounting seat, a contact panel, an adjusting mechanism and a first locking mechanism, the mounting seat is provided with a first mounting surface for mounting the LED unit display screen, and the contact panel is provided with a first contact surface; the second lock body comprises a base and a second locking mechanism, a second mounting surface for mounting the LED unit display screen is arranged on the base, a locking plate is arranged on the contact panel, and the locking plate and the second locking mechanism can be mutually locked so as to temporarily fix the base on the first contact surface of the contact panel; the adjusting mechanism is used for driving the front side edge and the rear side edge of the contact panel to move different distances so as to adjust the included angle between the second mounting surface and the first mounting surface, and the first locking mechanism is used for temporarily fixing the contact panel and the mounting seat. The arc lock can splice a plurality of LED unit display screens into arc screens with different radian sizes, and improves the universality of the LED display screens.
Description
Technical Field
The invention belongs to the technical field of arc adjustment of LED display screens, and particularly relates to an arc lock and an LED display screen.
Background
The LED display screen is used for displaying information such as characters, images, videos, video signals and the like, and the LED display screen is widely applied to many fields because the LED display screen has the obvious advantages of high brightness, low working voltage, low power consumption, large scale, long service life, impact resistance, stable performance and the like.
In recent years, the technology of the LED display screen is rapidly developed, the LED display screen is rapidly popularized, and the requirements of people on the LED display screen are higher and higher. One of the development directions of the current LED display screens is large-screen display (such as outdoor advertisement or large-scale stage display), and the current LED display screens are usually formed by assembling a plurality of LED unit display screens. In some cases, the LED display screen needs to be bent into an arc screen for better display effect.
The arc screen is formed by splicing a plurality of LED unit display screens in a certain radian. At present, the box body of the corresponding LED unit display screen is generally customized according to the radian of the needed arc screen, and the box body of the customized LED unit display screen is only required to be fixedly spliced together during installation. However, the arc screen assembled by the structure only has a single radian, the radian of the arc screen cannot be adjusted, the arc screen cannot be suitable for the requirements of occasions with other radian sizes, and the universality is poor.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the arc lock and the LED display screen are provided for solving the problems that the existing arc screen is single in radian and difficult to adjust.
To solve the above technical problem, an embodiment of the present invention provides an arc lock, including a first lock body and a second lock body;
the first lock body comprises a mounting seat, a contact panel, an adjusting mechanism and a first locking mechanism, wherein a first mounting surface for mounting an LED unit display screen is arranged at the front end of the mounting seat, the adjusting mechanism and the first locking mechanism are arranged on the mounting seat, and the contact panel is provided with a first contact surface facing the second lock body;
the second lock body comprises a base and a second locking mechanism, a second mounting surface for mounting the LED unit display screen is arranged at the front end of the base, and a locking plate is arranged on the contact panel and can be mutually locked with the second locking mechanism so as to temporarily fix the base on the first contact surface of the contact panel;
the adjusting mechanism is used for driving the front side edge of the contact panel and the rear side edge of the contact panel to move different distances so as to adjust the included angle between the second mounting surface and the first mounting surface, and the first locking mechanism is used for temporarily fixing the contact panel and the mounting seat.
Optionally, the adjusting mechanism includes a driving mechanism, a first connecting rod and a second connecting rod, a first end of the first connecting rod is connected with a rear side of the contact panel, a second end of the first connecting rod is movably disposed on the mounting seat, a first end of the second connecting rod is connected with a front side of the contact panel, a second end of the second connecting rod is movably disposed on the mounting seat, the driving mechanism is used for driving the first connecting rod and the second connecting rod to move relative to the mounting seat, so that the first connecting rod drives the rear side of the contact panel to be close to or away from the mounting seat and the second connecting rod drives the front side of the contact panel to be close to or away from the mounting seat, and an included angle between the second mounting surface and the first mounting surface is adjusted.
Optionally, the driving mechanism includes a rotary knob, an upper gear, a rotary shaft and a lower gear, the rotary knob is fixed on the upper gear, the rotary shaft is arranged on the mounting seat in a penetrating manner, the rotary shaft is in threaded connection with the mounting seat, one end of the rotary shaft is fixedly connected with the upper gear, the other end of the rotary shaft is provided with a spiral guide rail groove, a guide pin is fixed on the lower gear, the guide pin is slidably arranged in the guide rail groove, the lower gear is rotatably arranged on the mounting seat, a first rack engaged with the upper gear is arranged on the first connecting rod, and a second rack engaged with the lower gear is arranged on the second connecting rod;
when the rotating torque rotates under the action of external force, the upper gear, the rotating shaft and the lower gear are driven to rotate, so that the first connecting rod and the second connecting rod move for different distances relative to the mounting seat.
Optionally, the first link is hinged to a rear side of the touch panel and the second link is hinged to a front side of the touch panel.
Optionally, a first avoidance groove is formed in the rear side edge of the contact panel, a first hinge portion is arranged at a first end of the first connecting rod, the first hinge portion is embedded in the first avoidance groove, and two ends of the first hinge portion are respectively rotatably supported on two opposite side walls of the first avoidance groove;
the contact panel is characterized in that a second avoiding groove is formed in the front side edge of the contact panel, a second hinge portion is arranged at the first end of the second connecting rod and embedded into the second avoiding groove, and two ends of the second hinge portion are respectively and rotatably supported on two opposite side walls of the second avoiding groove.
Optionally, the second end of the first connecting rod is provided with a first moving portion, the first moving portion is fixedly connected with the first hinge portion, the first moving portion is movably disposed on the mounting seat, the first rack is disposed on the first moving portion, and a cross-sectional area of an end of the first moving portion away from the first hinge portion is larger than a cross-sectional area of an end of the first moving portion close to the first hinge portion;
the second end of the second connecting rod is provided with a second moving part, the second moving part is fixedly connected with the second hinge part, the second moving part is movably arranged on the mounting seat, the second rack is arranged on the second moving part, and the cross-sectional area of one end, far away from the second hinge part, of the second moving part is larger than that of one end, close to the second hinge part, of the second moving part.
Optionally, a position of the outer surface of the mounting seat, which corresponds to the rotation knob, is provided with an angle mark.
Optionally, the first locking mechanism is used for temporarily fixing the first link or the second link on the mounting seat.
Optionally, a positioning member protruding toward the second lock body is arranged on the first contact surface, a positioning hole is arranged on the base, and the positioning member is inserted into the positioning hole.
On the other hand, the invention also provides an LED display screen, which includes a plurality of LED unit display screens and the arc-shaped lock according to any one of the above technical solutions, the first lock body is fixed to the right frame (or left frame) of the LED unit display screens, the second lock body is fixed to the left frame (or right frame) of the LED unit display screens, and the second lock body of one LED unit display screen is fixedly connected to the first lock body of the other LED unit display screen.
Compared with the prior art, the arc lock and the LED display screen provided by the embodiment of the invention have the advantages that the second lock body is fixed on the first contact surface of the first lock body, when the adjusting mechanism drives the rear side edge and the front side edge of the contact panel to move for different distances, the included angle between the first mounting surface and the first contact surface is changed, and the position of the second lock body is changed along with the change of the position of the contact panel, so that the included angle between the first mounting surface and the second mounting surface is driven to be changed, and further, the splicing of different arcs can be realized by two adjacent LED unit display screens, the arc screens with different arc sizes are spliced, so that the LED display screen can be suitable for display occasions with different arc requirements, the installation and the disassembly of the LED display screen are facilitated, and the universality of the LED display screen is improved.
Drawings
Fig. 1 is a schematic structural diagram of an LED display screen according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an arc lock according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the second locking mechanism of FIG. 2;
figure 4 is a schematic structural view of the first lock body of figure 1;
FIG. 5 is a first schematic illustration of the explosive structure of FIG. 4;
FIG. 6 is a second schematic illustration of the exploded structure of FIG. 4;
figure 7 is a first reference to the first lock body of figure 4 in a touch panel adjustment state;
figure 8 is a second view of the contact panel adjustment of the first lock body of figure 4;
figure 9 is a third view of the contact panel adjustment of the first lock body of figure 4.
The reference numerals in the specification are as follows:
10. an arc lock;
1. a first lock body; 11. a mounting seat; 111. a first mounting surface; 112. a groove;
12. a touch panel; 121. a first contact surface; 122. a rear side; 1221. a first avoidance slot; 1222. a first mounting hole; 123. a front side; 1231. a second avoidance slot; 1232. a second mounting hole; 124. a positioning member;
13. an adjustment mechanism; 131. a first link; 1311. a first rack; 1312. a first hinge portion; 1313. a first moving part; 1314. a limiting hole; 132. a second link; 1321. a second rack; 1322. a second hinge portion; 1323. a second moving part; 133. rotating the knob; 134. an upper gear; 135. a rotating shaft; 1351. a first thread; 1352. a guide rail groove; 136. a lower gear; 137. a guide pin;
14. a first locking mechanism; 141. rotating the handle; 1411. an eccentric cam; 142. a telescopic shaft; 143. a spacing pin; 144. a first elastic member; 145. a damping member;
15. a locking plate; 151. a lock hole;
16. a first pin; 17. a second pin; 18. a cover plate; 19. identifying an angle;
2. a second lock body; 21. a base; 211. a second mounting surface;
22. a second locking mechanism; 221. a fixing member; 222. a lock head; 223. a lock lever; 224. rotating the handle; 225. a locking mechanism;
20. LED unit display screen.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
For clarity of description, the orientation in the present invention is the orientation normally used for the LED display screen.
As shown in fig. 2 to 5, an arc lock 10 according to an embodiment of the present invention includes a first lock body 1 and a second lock body 2.
The first lock body 1 includes a mounting seat 11, a touch panel 12, an adjusting mechanism 13 and a first locking mechanism 14, the front end of the mounting seat 11 has a first mounting surface 111 for mounting the LED unit display 20, the adjusting mechanism 13 and the first locking mechanism 14 are disposed on the mounting seat 11, and the touch panel 12 has a first touch surface 121 facing the second lock body 2.
The second lock body 2 comprises a base 21 and a second locking mechanism 22, the front end of the base 21 is provided with a second mounting surface 211 for mounting the LED unit display screen 20, and the contact panel 12 is provided with a locking plate 15, and the locking plate 15 and the second locking mechanism 22 can be mutually locked to temporarily fix the base 21 on the first contact surface 121 of the contact panel 12.
The adjusting mechanism 13 is used for driving the rear side edge 122 of the touch panel 12 and the front side edge 123 of the touch panel 12 to move different distances so as to adjust the included angle between the second mounting surface 211 and the first mounting surface 111, and the first locking mechanism 14 is used for temporarily fixing the touch panel 12 and the mounting seat 11.
The first lock body 1 is fixed on the right frame (or left frame) of the LED unit display screen 20, the second lock body 2 is fixed on the position of the left frame (or right frame) of the LED unit display screen 20 corresponding to the first lock body 1, the rear side 122 and the front side 123 of the contact panel 12 are driven to move different distances through the adjusting mechanism 13, so as to change the included angle between the first mounting surface 111 and the first contact surface 121, after the adjustment is completed, the first locking mechanism 14 is adopted to temporarily fix the mounting seat 11 and the contact panel 12, so as to avoid the change of the included angle between the first mounting surface 111 and the first contact surface 121, then the second lock body 2 on the other LED unit display screen 20 is mounted on the first contact surface 121, the second locking mechanism 22 and the locking plate 15 are locked with each other, so that the base 21 is temporarily fixed on the contact panel 12, so as to temporarily fix the two adjacent LED unit display screens 20 into a required angle, and splicing to form the arc-shaped LED display screen.
Compared with the prior art, the arc lock provided by the embodiment of the invention has the advantages that the second lock body 2 is fixed on the first contact surface 121 of the first lock body 1, when the adjusting mechanism 13 drives the rear side edge 122 and the front side edge 123 of the contact panel 12 to move for different distances, the included angle between the first mounting surface 111 and the first contact surface 121 is changed, and the position of the second lock body 2 is changed along with the change of the position of the contact panel 12, so that the included angle between the first mounting surface 111 and the second mounting surface 211 is driven to be changed, and further, the two adjacent LED unit display screens 20 can be spliced into the arc screens with different arc sizes, so that the LED display screens can be suitable for display occasions with different arc requirements, the LED display screens can be conveniently mounted and dismounted, and the universality of the LED display screens is improved.
In an embodiment, as shown in fig. 4 to 6, the adjusting mechanism 13 includes a driving mechanism, a first link 131 and a second link 132, a first end of the first link 131 is connected to the rear side 122 of the touch panel 12, a second end of the first link 131 is movably disposed on the mounting base 11, a first end of the second link 132 is connected to the front side 123 of the touch panel 12, a second end of the second link 132 is movably disposed on the mounting base 11, the driving mechanism is configured to drive the first link 131 and the second link 132 to move relative to the mounting base 11, so that the first link 131 drives the rear side 122 of the touch panel 12 to approach or depart from the mounting base 11, and the second link 132 drives the front side 123 of the touch panel 12 to approach or depart from the mounting base 11, so as to adjust an included angle between the second mounting surface 211 and the first mounting surface 111.
The driving mechanism drives the first connecting rod 131 to retract or extend out of the mounting seat 11, so as to drive the rear side edge 122 of the contact panel 12 to be close to or far away from the mounting seat 11, meanwhile, the driving mechanism drives the second connecting rod 132 to retract or extend out of the mounting seat 11, so as to drive the front side edge 123 of the contact panel 12 to be close to or far away from the mounting seat 11, and the moving distance of the first connecting rod 131 relative to the mounting seat 11 is different from the moving distance of the second connecting rod 132 relative to the mounting seat 11, so as to change the included angle of the first contact surface 121 and the first mounting surface 111, so as to adjust the included angle of the first mounting surface 111 and the second mounting surface 211, so as to adjust the LED display screen into different arc-shaped screens, the structure is simple.
In one embodiment, as shown in fig. 5 and 6, the driving mechanism includes a rotary knob 133, an upper gear 134, a rotary shaft 135 and a lower gear 136, the rotary knob 133 is fixed on the upper gear 134, the rotary shaft 135 is inserted into the mounting base 11, the rotary shaft 135 is in threaded connection with the mounting base 11, one end of the rotary shaft 135 is fixedly connected with the upper gear 134, the other end of the rotary shaft 135 is provided with a spiral guide rail groove 1352, a guide pin 137 is fixed on the lower gear 136, the guide pin 137 is slidably disposed in the guide rail groove 1352, the lower gear 136 is rotatably disposed on the mounting base 11, the first link 131 is provided with a first rack 1311 engaged with the upper gear 134, and the second link 132 is provided with a second rack 1321 engaged with the lower gear 136.
When the rotation knob 133 is rotated by an external force, the upper gear 134, the rotation shaft 135 and the lower gear 136 are rotated, so that the first link 131 and the second link 132 move different distances with respect to the mounting base 11.
Under the action of external force, the rotating knob 133 is rotated, the rotating knob 133 drives the upper gear 134 to rotate, the upper gear 134 drives the first connecting rod 131 to move relative to the mounting seat 11 through meshing, the rear side edge 122 of the contact panel 12 moves along with the first connecting rod 131, meanwhile, the upper gear 134 drives the rotating shaft 135 to rotate, the rotating shaft 135 is in threaded connection with the mounting seat 11 and the mounting seat 11 is fixed, so the rotating shaft 135 moves along the self axial direction relative to the mounting seat 11 while rotating, because the lower gear 136 cannot move relative to the mounting seat 11 in the axial direction of the rotating shaft 135, the guide pin 137 rotates along the guide rail groove 1352, the guide pin 137 drives the lower gear 136 to rotate at a rotating speed different from that of the rotating shaft 135, the lower gear 136 drives the second connecting rod 132 to move relative to the mounting seat 11 through meshing, and the front side edge 123 of the contact panel 12 moves along with the second; realized going up gear 134 and lower gear 136 and rotating with the rotational speed of difference, the pitch circle diameter of gear 134 and lower gear 136 is gone up in rational design simultaneously, guarantee that first rack 1311 and second rack 1321's translation rate is different, it is different for the translation distance of mount pad 11 and second connecting rod 132 to realize first connecting rod 131, thereby can adjust the contained angle of first installation face 111 and second installation face 211, the convenience and the accurate nature of LED display screen radian regulation have been improved, be convenient for the installation and the dismantlement of LED display screen, make the LED display screen can be applicable to the demonstration occasion of different radian demands, improve the commonality of LED display screen.
Preferably, the first screw thread 1351 is provided at an end of the rotation shaft 135 near the upper gear 134.
Preferably, the rotating shaft 135 is provided with a first thread 1351, and the mounting seat 11 is provided with a second thread matching with the first thread 1351.
Preferably, the pitch diameter of the upper gear 134 is larger than the pitch diameter of the lower gear 136.
In one embodiment, as shown in fig. 5 and 6, the first link 131 is hingedly connected to the rear side 122 of the touch panel 12 and the second link 132 is hingedly connected to the front side 123 of the touch panel 12. The first connecting rod 131 drives the rear side edge 122 of the contact panel 12 to move parallel to the first mounting surface 111 in the left-right direction, the second connecting rod 132 drives the front side edge 123 of the contact panel 12 to move parallel to the first mounting surface 111 in the left-right direction, the included angle between the first mounting surface 111 and the first contact surface 121 can be changed, different horizontal telescopic distances through the first connecting rod 131 and the second connecting rod 132 are achieved, the included angle between the first mounting surface 111 and the second mounting surface 211 is adjusted, compared with an existing arc lock for adjusting the splicing angle through arc sliding, horizontal telescopic adjustment is smoother and more stable, and meanwhile, the installation space required by the arc lock is smaller.
In one embodiment, as shown in fig. 6, a first avoidance groove 1221 is disposed on the rear side edge 122 of the touch panel 12, a first hinge portion 1312 is disposed at a first end of the first link 131, the first hinge portion 1312 is embedded in the first avoidance groove 1221, and two ends of the first hinge portion 1312 are respectively and rotatably supported on two opposite sidewalls of the first avoidance groove 1221. The first avoiding groove 1221 is arranged to provide a rotation space for the first hinge portion 1312, so that the smoothness of hinge connection is improved, and the weight of the first lock body 1 is reduced; meanwhile, the first hinge portion 1312 is embedded into the first avoiding groove 1221, so that the overall structure of the first lock body 1 is more compact, and the occupied space of the first lock body 1 is reduced.
Preferably, as shown in fig. 6, the first hinge portion 1312 is formed as a sleeve, the two side walls of the first avoidance groove 1221 are respectively provided with a first through-hole 1222, and the first pin 16 is inserted into the inner hole of the sleeve and the two first through-holes 1222, so as to realize the hinge connection of the first link 131 with the rear side 122 of the touch panel 12. The stability of being connected of first link 131 and touch panel 12 is improved, simple structure, the installation and maintenance of being convenient for.
In an embodiment, as shown in fig. 6, a second avoiding groove 1231 is disposed on the front side 123 of the touch panel 12, a second hinge portion 1322 is disposed at the first end of the second link 132, the second hinge portion 1322 is embedded in the second avoiding groove 1231, and two ends of the second hinge portion 1322 are respectively rotatably supported on two opposite sidewalls of the second avoiding groove 1231. The second avoiding groove 1231 is arranged to provide a rotating space for the second hinge portion 1322, so that the smoothness of hinge connection is improved, and the weight of the first lock body 1 is reduced; meanwhile, the second hinged portion 1322 is embedded into the second avoiding groove 1231, so that the overall structure of the first lock body 1 is more compact, and the occupied space of the first lock body 1 is reduced.
Preferably, as shown in fig. 6, the second hinge portion 1322 is formed as a sleeve, the two side walls of the second avoiding groove 1231 are respectively provided with a second mounting hole 1232, and the second pin 17 is inserted into the inner hole of the sleeve and the two second mounting holes 1232, so that the second connecting rod 132 is hinged to the front side 123 of the contact panel 12. The stability of the connection of the second connecting rod 132 and the touch panel 12 is improved, the structure is simple, and the installation and the maintenance are convenient.
In one embodiment, as shown in fig. 6, the second end of the first link 131 is provided with a first moving part 1313, the first moving part 1313 is fixedly connected to the first hinge 1312, the first moving part 1313 is movably disposed on the mounting seat 11, the first rack 1311 is disposed on the first moving part 1313, and a cross-sectional area of an end of the first moving part 1313 away from the first hinge 1312 is larger than a cross-sectional area of an end of the first moving part 1313 close to the first hinge 1312. The stability that first removal portion 1313 removed is improved, avoids producing and rocks, prevents to influence the precision that the radian was adjusted, has also alleviateed the weight of first lock body 1.
In an embodiment, as shown in fig. 6, the second end of the second connecting rod 132 is provided with a second moving portion 1323, the second moving portion 1323 is fixedly connected to the second hinge portion 1322, the second moving portion 1323 is movably disposed on the mounting seat 11, the second rack 1321 is disposed on the second moving portion 1323, and a cross-sectional area of an end of the second moving portion 1323 away from the second hinge portion 1322 is larger than a cross-sectional area of an end of the second moving portion 1323 close to the second hinge portion 1322. The stability that second removal portion 1323 removed is improved, avoids producing and rocks, prevents to influence the precision that the radian was adjusted, has also alleviateed the weight of first lock body 1.
In one embodiment, as shown in fig. 6, the first lock body 1 further includes a cover plate 18, the mounting seat 11 is provided with a groove 112 that is open along the axial direction of the rotating shaft 135, the lower gear 136 is disposed in the groove 112, and the cover plate 18 is disposed on the groove 112 and fixedly connected to the groove 112 to limit the lower gear 136 between the groove wall of the corresponding opening of the groove 112 and the cover plate 18. The cover plate 18 is matched with the groove 112, so that the lower gear 136 cannot move relative to the mounting seat 11 in the axial direction of the rotating shaft 135, the rotating shaft 135 is favorable for driving the lower gear 136 and the upper gear 134 to form a rotating speed difference, and therefore the included angle between the first mounting surface 111 and the second mounting surface 211 is adjusted.
In an embodiment, as shown in fig. 4, the first contact surface 121 is provided with a positioning member 124 protruding toward the second lock body 2, and the base 21 is provided with a positioning hole, and the positioning member 124 is used for being inserted into the positioning hole. The installation and the positioning of the first lock body 1 and the second lock body 2 during fixing are facilitated, and the splicing efficiency of the LED display screen is improved.
In one embodiment, as shown in fig. 4, the outer surface of the mounting seat 11 is provided with an angle mark 19 at a position corresponding to the turn knob 133. The splicing angle of the two adjacent LED unit display screens 20 can be visually displayed for an operator through the angle mark 19, so that the radian of the LED display screens can be conveniently adjusted.
Preferably, the angle indicator 19 is an included angle between the first mounting surface 111 and the second mounting surface 211 when the first lock body 1 is fixedly connected with the second lock body 2.
The first mounting surface 111 and the first contact surface 121 form an included angle a. The rear side edge 122 and the front side edge 123 of the contact panel 12 are driven by the adjusting mechanism 13 to move different distances, and the size of the included angle A can be changed at will, so that the included angles of the first installation surface 111 and the second installation surface 211 can be adjusted to any angle, the LED unit display screens can be spliced into LED display screens with different splicing included angles, different radians are spliced, and the requirement of customers on any radian can be met. For the sake of clarity, three different angles a are taken as examples for illustration.
In fig. 7, a is 82.5 °, the angle between the first mounting surface 111 and the second mounting surface 211 is 7.5 °, the angle indicator 19 pointed by the pointer of the rotary knob 133 is 7.5 °, that is, the splicing angle between the two LED unit display screens 20 is 7.5 °.
In fig. 8, a is 90 °, the angle between the first mounting surface 111 and the second mounting surface 211 is 0 °, the angle indicator 19 pointed by the pointer of the rotating knob 133 is 0 °, that is, the splicing angle between the two LED unit display screens 20 is 0 °, and at this time, the LED display screens are rectangular.
In fig. 9, a is 97.5 °, the angle between the first mounting surface 111 and the second mounting surface 211 is-7.5 °, the angle indicator 19 pointed by the pointer of the rotary knob 133 is-7.5 °, that is, the splicing angle between the two LED unit display screens 20 is-7.5 °.
In one embodiment, as shown in fig. 6, the first locking mechanism 14 is used to temporarily fix the first link 131 to the mounting base 11. When the radian of the LED display screen needs to be adjusted, the temporary fixation of the first locking mechanism 14 on the first connecting rod 131 and the mounting seat 11 is released, the driving mechanism can drive the first connecting rod 131 and the second connecting rod 132 to move relative to the mounting seat 11, so as to adjust the included angle between the first mounting surface 111 and the second mounting surface 211, after the adjustment is completed, the first locking mechanism 14 temporarily fixedly connects the first connecting rod 131 and the mounting seat 11, so that the second connecting rod 132 is temporarily fixedly connected with the mounting seat 11, so as to fix the positions of the contact panel 12 and the mounting seat 11, keep the included angle between the first mounting surface 111 and the second mounting surface 211 unchanged, improve the stability of the LED display screen, and avoid the influence on the display effect caused by the change of the radian of the LED display screen in the using process.
The first locking mechanism can adopt any locking device which can realize locking and unlocking functions in the prior art. The present invention will be described in detail by taking an eccentric cam lock device as an example.
As shown in fig. 5 and 6, the first locking mechanism 14 includes a rotating handle 141, a telescopic shaft 142, a limit pin 143, and a first elastic member 144, a first end of the telescopic shaft 142 is connected to the rotating handle 141, a second end of the limit shaft is disposed on the mounting base 11 in a penetrating manner, the limit pin 143 is inserted into a second end of the limit shaft, the first elastic member 144 is sleeved on the limit shaft and compressed between the limit member and an inner wall of the mounting base 11, one end of the rotating handle 141 connected to the limit shaft is an eccentric cam 1411, the eccentric cam 1411 is rotatably connected to the mounting base 11, and a limit hole 1314 is disposed on one side of the first connecting rod 131 corresponding to the telescopic shaft 142.
When the rotating handle 141 rotates forward under the action of external force, the eccentric cam 1411 drives the connection point of the rotating handle 141 and the limiting shaft to be close to the mounting seat 11, so that the telescopic shaft 142 extends into the limiting hole 1314, the first link 131 is limited to move relative to the mounting seat 11, the first link 131 is temporarily fixed on the mounting seat 11, and after the external force acting on the rotating handle 141 contacts with the mounting seat 11, the first link 131 still can be temporarily fixed with the mounting seat 11.
When the rotating handle 141 rotates reversely under the action of an external force, the eccentric cam 1411 drives the connection point of the rotating handle 141 and the limiting shaft to be away from the mounting seat 11, so that the telescopic shaft 142 is pulled out of the limiting hole 1314, the temporary fixation of the first link 131 and the mounting seat 11 is released, and the first link 131 can move relative to the mounting seat 11.
Preferably, the first locking mechanism 14 further includes a damping member 145 disposed between the eccentric cam 1411 and the mount 11. The damper 145 is fixed to the mount 11, and the eccentric cam 1411 is rotatably coupled to the damper 145. Avoid the vibration that produces when eccentric cam 1411 directly rotates with mount pad 11 and be connected, reduce the wearing and tearing of eccentric cam 1411 and mount pad 11.
Preferably, the damping member 145 is made of a nylon plastic material.
In another embodiment, the first locking mechanism is used to temporarily secure the second link to the mount.
The second locking mechanism can adopt any locking device which can realize locking and unlocking functions in the prior art. For greater clarity, the second locking mechanism of the present invention is described in detail below.
In an embodiment, as shown in fig. 3 and 5, the second locking mechanism 22 includes a fixing member 221, a locking head 222, a locking rod 223, a rotating handle 224 and a locking mechanism 225, the fixing member 221 is fixed on the base 21, the locking rod 223 is inserted through the fixing member 221 and rotatably connected with the fixing member 221, a first end of the locking rod 223 is fixedly connected with the locking head 222, and a second end of the locking rod 223 is fixedly connected with the rotating handle 224; the locking plate 15 is provided with a locking hole 151 which is matched with the shape of the locking head 222, the first end of the locking rod 223 extends into the locking hole 151, the locking head 222 penetrates through the locking hole 151, the rotating handle 141 is rotated to enable the locking head 222 and the locking hole 151 to be staggered to clamp the locking plate 15, and the locking mechanism 225 can temporarily fix the rotating handle 224 on the fixing piece 221 to limit the rotation of the rotating handle 224.
During locking, the locking mechanism 225 releases the rotation restriction of the rotating handle 224, the rotating handle 224 is rotated to enable the lock head 222 to correspond to the lock hole 151, then the lock rod 223 is pushed along the axial direction of the lock rod 223 to enable the lock head 222 to pass through the lock hole 151, then the rotating handle 224 is rotated to enable the lock head 222 to be dislocated with the lock hole 151, so that the lock head 222 locks the lock plate 15, then the locking mechanism temporarily fixes the rotating handle 224 on the fixing piece 221 to restrict the rotation of the rotating handle 224, and further the second locking mechanism 22 and the lock plate 15 are locked; when unlocking, the lock mechanism 225 releases the rotational restriction of the rotational handle 224, rotates the rotational handle 224 to make the lock head 222 correspond to the lock hole 151, and then pulls out the lock head 222 from the lock hole 151 in the axial direction of the lock lever 223, thereby unlocking the second lock mechanism 22 and the lock plate 15.
In one embodiment, as shown in fig. 1, the locking mechanism 225 includes a second elastic member (not shown), a limit gear (not shown) fixed on the fixing member 221, and a swing link (not shown) hinged on the rotating handle 224, a first end of the swing link is provided with a stop pawl cooperating with the limit gear, a second end of the swing link is provided with a button, and a hinge shaft of the swing link hinged on the rotating handle 224 is located between the stop pawl and the button.
One end of the second elastic element is connected with the rotary handle 224, the other end of the second elastic element is connected with the swing rod, and the elastic force of the second elastic element acting on the swing rod enables the stop pawl to be meshed with the limiting gear so as to limit the rotation of the rotary handle 224; the stop pawl can be separated from the limit gear by pressing the button. Pressing the button causes the locking pawl to disengage from the limit gear so that the rotary knob 224 can be rotated to extend the locking head 222 into or out of the locking hole 151, and releasing the button, the locking pawl engages with the limit gear to restrict the rotation of the rotary knob 224, thereby keeping the locking head 222 from locking the locking plate 15. The locking mechanism 225 has a simple structure and is convenient to operate, and the LED unit display screen 20 can be conveniently mounted and dismounted.
On the other hand, as shown in fig. 1, the present invention further provides an LED display screen, which includes a plurality of LED unit display screens 20 and the arc-shaped lock 10 as described in any of the foregoing embodiments, wherein the first lock body 1 is fixed on the right frame (or left frame) of the LED unit display screen 20, the second lock body 2 is fixed on the left frame (or right frame) of the LED unit display screen 20, and the second lock body 2 of one LED unit display screen 20 is fixedly connected with the first lock body 1 of another LED unit display screen 20.
Preferably, the position of the first lock body 1 on the LED unit display screen 20 corresponds to the position of the second lock body 2 on the LED unit display screen 20.
In one embodiment, as shown in fig. 1, two first lock bodies 1 are fixed on the right frame of the LED unit display screen 20, and two second lock bodies 2 are fixed on the left frame of the LED unit display screen 20. The splicing stability of the LED display screen is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An arc lock is characterized by comprising a first lock body and a second lock body;
the first lock body comprises a mounting seat, a contact panel, an adjusting mechanism and a first locking mechanism, wherein a first mounting surface for mounting an LED unit display screen is arranged at the front end of the mounting seat, the adjusting mechanism and the first locking mechanism are arranged on the mounting seat, and the contact panel is provided with a first contact surface facing the second lock body;
the second lock body comprises a base and a second locking mechanism, a second mounting surface for mounting the LED unit display screen is arranged at the front end of the base, and a locking plate is arranged on the contact panel and can be mutually locked with the second locking mechanism so as to temporarily fix the base on the first contact surface of the contact panel;
the adjusting mechanism is used for driving the front side edge of the contact panel and the rear side edge of the contact panel to move different distances so as to adjust the included angle between the second mounting surface and the first mounting surface, and the first locking mechanism is used for temporarily fixing the contact panel and the mounting seat.
2. An arcuate lock according to claim 1, wherein said adjustment mechanism includes a drive mechanism, a first link and a second link, the first end of the first connecting rod is connected with the rear side edge of the contact panel, the second end of the first connecting rod is movably arranged on the mounting seat, the first end of the second connecting rod is connected with the front side edge of the contact panel, the second end of the second connecting rod is movably arranged on the mounting seat, the driving mechanism is used for driving the first connecting rod and the second connecting rod to move relative to the mounting seat, the first connecting rod drives the rear side edge of the contact panel to be close to or far away from the mounting seat, and the second connecting rod drives the front side edge of the contact panel to be close to or far away from the mounting seat, so that the included angle between the second mounting surface and the first mounting surface is adjusted.
3. The arc lock according to claim 2, wherein the driving mechanism comprises a rotary knob, an upper gear, a rotary shaft and a lower gear, the rotary knob is fixed on the upper gear, the rotary shaft is inserted into the mounting seat and is in threaded connection with the mounting seat, one end of the rotary shaft is fixedly connected with the upper gear, the other end of the rotary shaft is provided with a spiral guide rail groove, a guide pin is fixed on the lower gear, the guide pin is slidably arranged in the guide rail groove, the lower gear is rotatably arranged on the mounting seat, the first connecting rod is provided with a first rack engaged with the upper gear, and the second connecting rod is provided with a second rack engaged with the lower gear;
when the rotating torque rotates under the action of external force, the upper gear, the rotating shaft and the lower gear are driven to rotate, so that the first connecting rod and the second connecting rod move for different distances relative to the mounting seat.
4. The arcuate lock as defined in claim 3, wherein said first link is hingedly connected to a rear side of said touch panel and said second link is hingedly connected to a front side of said touch panel.
5. The arc-shaped lock according to claim 4, wherein a first avoidance groove is formed on the rear side edge of the contact panel, a first hinge portion is formed at the first end of the first connecting rod, the first hinge portion is embedded in the first avoidance groove, and two ends of the first hinge portion are respectively rotatably supported on two opposite side walls of the first avoidance groove;
the contact panel is characterized in that a second avoiding groove is formed in the front side edge of the contact panel, a second hinge portion is arranged at the first end of the second connecting rod and embedded into the second avoiding groove, and two ends of the second hinge portion are respectively and rotatably supported on two opposite side walls of the second avoiding groove.
6. The arc lock of claim 5, wherein the second end of the first link is provided with a first moving portion, the first moving portion is fixedly connected with the first hinge portion, the first moving portion is movably disposed on the mounting seat, the first rack is disposed on the first moving portion, and the cross-sectional area of the end of the first moving portion away from the first hinge portion is larger than the cross-sectional area of the end of the first moving portion close to the first hinge portion;
the second end of the second connecting rod is provided with a second moving part, the second moving part is fixedly connected with the second hinge part, the second moving part is movably arranged on the mounting seat, the second rack is arranged on the second moving part, and the cross-sectional area of one end, far away from the second hinge part, of the second moving part is larger than that of one end, close to the second hinge part, of the second moving part.
7. An arcuate lock according to claim 3, wherein the outer surface of the mounting socket is provided with an angular indication of the position of the turn knob.
8. An arcuate lock according to claim 2, wherein said first locking mechanism is adapted to temporarily secure said first link or said second link to said mounting block.
9. An arc lock according to claim 1, wherein a positioning member is disposed on the first contact surface and protrudes toward the second lock body, and a positioning hole is disposed on the base, and the positioning member is configured to be inserted into the positioning hole.
10. An LED display screen, comprising a plurality of LED unit display screens and the arc lock of any one of claims 1 to 9, wherein the first lock body is fixed on the right frame (or left frame) of the LED unit display screens, the second lock body is fixed on the left frame (or right frame) of the LED unit display screens, and the second lock body of one LED unit display screen is fixedly connected with the first lock body of the other LED unit display screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110326401.6A CN113066387A (en) | 2021-03-26 | 2021-03-26 | Arc lock and LED display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110326401.6A CN113066387A (en) | 2021-03-26 | 2021-03-26 | Arc lock and LED display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113066387A true CN113066387A (en) | 2021-07-02 |
Family
ID=76564047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110326401.6A Pending CN113066387A (en) | 2021-03-26 | 2021-03-26 | Arc lock and LED display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113066387A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040316A1 (en) * | 2021-09-17 | 2023-03-23 | 深圳市光祥科技股份有限公司 | Arc-shaped lock and splicing screen |
| WO2023201852A1 (en) * | 2022-04-22 | 2023-10-26 | 深圳市联建光电有限公司 | Lock mechanism and locking apparatus |
| CN117238216A (en) * | 2023-11-07 | 2023-12-15 | 深圳利亚德光电有限公司 | Radian adjustment mechanism and LED display device with same |
-
2021
- 2021-03-26 CN CN202110326401.6A patent/CN113066387A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040316A1 (en) * | 2021-09-17 | 2023-03-23 | 深圳市光祥科技股份有限公司 | Arc-shaped lock and splicing screen |
| EP4177873A4 (en) * | 2021-09-17 | 2023-11-01 | Shenzhen Gloshine Technology Co., Ltd. | Arc-shaped lock and splicing screen |
| WO2023201852A1 (en) * | 2022-04-22 | 2023-10-26 | 深圳市联建光电有限公司 | Lock mechanism and locking apparatus |
| CN117238216A (en) * | 2023-11-07 | 2023-12-15 | 深圳利亚德光电有限公司 | Radian adjustment mechanism and LED display device with same |
| CN117238216B (en) * | 2023-11-07 | 2024-03-26 | 深圳利亚德光电有限公司 | Radian adjustment mechanism and LED display device with same |
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