WO2015000335A1 - Two-dimensional displacement adjustable overturning mechanism - Google Patents

Abstract

A two-dimensional displacement adjustable overturning mechanism comprises an overturning piece (11), a fixing piece (12) mounted on a box body, a long connecting rod (13) and a short connecting rod (14) that are connected to the fixing piece (12) and the overturning piece (11), and an adjusting structure (15) mounted on a screen unit (2). An insertion portion (151) is disposed on a lower side surface of the adjusting structure (15). Upper and lower adjusting holes (111), left and right adjusting holes (112), and insertion holes (113) communicated with the left and right adjusting holes (112) are disposed on the overturning piece (11). The insertion portion (151) penetrates through the insertion hole (113) and then is mounted on the overturning piece (11) by using an anti-falling component (16). Upper and lower adjusting pieces (153) are mounted on the upper and lower adjusting holes (111), and left and right adjusting pieces (154) are mounted on the left and right adjusting holes (112), so as to implement convenient and reliable displacement adjustment.

Description

Inverting mechanism capable of adjusting displacement in two dimensions

 Technical field

 The present invention relates to the field of pre-screen maintenance, and more particularly to an inverting mechanism that can adjust displacement in two dimensions.

 Background technique

Projection Image Display Before the maintenance of the videowall system requires front maintenance of the rear projection box, it is generally necessary to remove the screen unit from the cabinet and reset the screen unit after maintenance. In order to realize this process, it is necessary to solve the problem that the connection between the screen unit and the box body is fixed, and the adjustment of the screen unit after the reset of the screen unit relative to the upper and lower sides of the box body, so as to ensure uniform and uniform seams between the screen units in the splicing wall system.

 Existing screen flipping mechanism for front maintenance such as Chinese patent application: 201210470959.2 a front maintenance turning mechanism; the utility model comprises a box body, a screen assembly, a four-bar mechanism hinge free positioning type sliding support and an adjusting mechanism, the screen assembly is hinged on the box body by a four-bar linkage hinge, and the free positioning type sliding support is arranged on the screen The two sides of the assembly are used to support the positioning screen assembly, and the adjusting mechanism is disposed on both sides of the box for realizing the fine adjustment of the screen assembly. The four-bar linkage hinge comprises a hinge mechanism fixing plate, a first hinge mechanism bracket, a second hinge bracket, a hinge rotating plate, a hinge pin and a collar, and the four-bar mechanism hinge is mounted on the box body by a hinge mechanism fixing plate, the first hinge One end of the mechanism bracket and the second hinge mechanism bracket is hinged to the hinge mechanism fixing plate by a hinge pin, and the other end is hinged to the hinge rotating plate by a hinge pin. The screen component is installed by first fixing the four-bar mechanism hinge and the screw of the screen assembly into one body, and then fixing the hinge mechanism fixing plate of the four-bar mechanism hinge with the rear projection box by screws, thereby realizing the installation and fixation of the screen component and the box body. . The adjustment of the screen assembly needs to be achieved by adjusting the displacement of the hinge of the entire four-bar mechanism using the adjustment mechanism. This structure has the following disadvantages:

 ( 1 The four-bar mechanism hinge must take into account the fixed and moving functions, resulting in the unfixed hinge fixing of the four-bar mechanism, which is prone to slope and offset; due to its tendency to be inclined and offset, the adjustment mechanism is easily stuck when it is spiraled. Unmovable situation.

 ( 2 Secondly, due to the long transmission chain, the inversion mechanism takes into account the fixing and adjustment functions, resulting in low adjustment efficiency and even jamming and adjustment failure.

 (3 In order to enable the screen to adjust the up, down, left and right position of the screen under the action of the adjustment mechanism, the outer diameter of the collar is required to be 1.5-2.5 mm smaller than the mounting hole on the hinge rotating plate, and can slide axially along the mounting hole. 1.5-2.5mm This structure requires high dimensional accuracy, and because the gap is left on the collar, the hinge rotating plate is easy to slide without working, causing the screen to flip down and affect normal use. Moreover, due to the existence of the reserved space of the holes, the movement trajectory of the turning mechanism is destroyed, so that the screen sinks during the screen flipping motion, and the actual screen cannot be opened and reset.

 (4) In the patent application, the length of the first hinge mechanism bracket and the second hinge bracket have a strict length ratio of 1:1.295.

 Summary of the invention

In order to overcome at least one of the defects (deficiencies) described in the prior art, the present invention provides an inverting mechanism that can adjust the displacement in two dimensions by simple, convenient and reliable.

 In order to solve the above technical problems, the technical solution of the present invention is as follows:

An inverting mechanism capable of adjusting displacement in two dimensions, comprising a flipping member, a fixing member mounted on the box body, a long connecting rod and a short connecting rod connected to the fixing member at one end and connecting the turning member at the other end, and further comprising An adjusting structure on the screen unit, the lower side of the adjusting structure is provided with an insertion portion protruding downward; the turning member is provided with an upper and lower adjusting hole, a left and right adjusting hole and an insertion hole communicating with the left and right adjusting holes, and the insertion portion is worn After being inserted into the hole, the anti-offlet assembly is mounted on the flipping member, and the upper and lower adjusting holes are provided with an upper and lower adjusting member having an end abutting on the lower side of the adjusting structure, and the left and right adjusting holes are provided with a left and right adjustment of one end against the insertion portion. Pieces.

 Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

 ( 1 The invention adds an adjustment structure to the existing turnover mechanism, integrates the removal function and the adjustment function of the screen unit on the same structure, and forms an integrated structure, which can complete the connection and removal of the screen unit and the box body. Reset, the displacement adjustment of the screen unit relative to the upper and lower left and right dimensions of the box can be completed, the structure is simple, and the adjustment mode is simple, convenient and reliable.

 ( 2 In the invention, when the displacement of the screen unit is adjusted, only the upper and lower adjusting members and the left and right adjusting members are required to adjust the displacement of the adjusting structure, thereby driving the screen unit to move, and the whole process does not require the fixing member, the turning member, the long connecting rod and the short connecting. The cooperation of the rods, and the fixing member, the turning member, the long connecting rod and the short connecting rod do not need to balance the adjustment function, the driving chain is greatly shortened, the entire adjusting mechanism is simplified, and the adjustment efficiency is improved.

 (3 The flip member, the long link and the short link of the present invention are all mounted on the box by the fixing member, and the adjusting structure is mounted on the screen unit. When in use, the insertion portion of the adjusting structure is directly inserted into the insertion hole on the flip member and The front maintenance unit can be connected to the cabinet by fixing the anti-off assembly. The connection method is simple and reliable, and the screen unit is easy to hang and easy to take. At the same time, the screen is directly hung on the flip member and matched with the upper and lower adjustment members. It is equivalent to the principle of the balance mechanism, and maintains the balance state. Compared with the screen, the screw is fixed on the turning mechanism, and the external force is affected by the deformation of the turning mechanism. The screen in the splicing wall system can be well maintained under the action of gravity. Vertical state, reducing the slope of the left and right front and back.

 DRAWINGS

 FIG. 1 is a schematic structural view of a specific embodiment of a flipping mechanism capable of adjusting displacement in two dimensions according to the present invention.

 Figure 2 is an exploded view of Figure 1.

 FIG. 3 is a schematic view showing the adjustment structure mounted on the screen unit in the present invention.

 Figure 4 is a schematic view showing the mounting member mounted on the casing in the present invention.

 FIG. 5 is a schematic view showing the installation of the two-dimensionally adjustable displacement inversion mechanism applied to the front-end image display display maintenance unit of the present invention.

 Figure 6 is a schematic view showing the structure of the adjusting structure in the present invention.

 Figure 7 is a schematic view showing the structure of the anti-drop assembly of the present invention.

 Figure 8 is a schematic view showing the structure of the flip member in the present invention.

 Figure 9 is a schematic view showing the structure of the fixing member in the present invention.

 Figure 10 is a schematic view showing the structure of the long connecting rod of the present invention.

 Figure 11 is a schematic view showing the structure of the short link in the present invention.

 detailed description

 The drawings are for illustrative purposes only and are not to be construed as limiting the invention;

 In order to better illustrate the embodiment, some components of the drawings may be omitted, enlarged or reduced, and do not represent the actual product size;

 It will be apparent to those skilled in the art that certain known structures and their description may be omitted.

In the description of the present invention, it is to be understood that the terms "end end", "other end", 'downward', 'lower side', 'up and down', 'left and right', 'bottom end', etc. indicate the orientation or position. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the description of the invention, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention. Moreover, the terms 'first', 'second', 'third', 'fourth' are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implied number of technical features indicated. Thus, the features of the 'first', 'second', 'third', and 'fourth' defined may include one or more of the features, either explicitly or implicitly. In the description of the present invention, 'multiple' means two or more unless otherwise stated.

In the description of the present invention, it should be noted that the terms 'mounting' and 'connecting' should be understood in a broad sense unless explicitly stated and defined, for example, it may be a fixed connection, a detachable connection, or an integral Ground connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be said that the internal connection of the two elements. The specific meaning of the above terms in the present invention can be understood in the specific circumstances by those skilled in the art.

 The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

 Example 1

 As shown in Fig. 1-12, a flipping mechanism 1 capable of adjusting displacement in two dimensions, including a flipping member 11 for mounting in the cabinet 3 The upper fixing member 12 has a long connecting rod 13 and a short connecting rod 14 connected to the fixing member 12 at one end and the flip member 11 at the other end, and an adjusting structure for mounting on the screen unit 2 The lower side of the adjusting structure 15 is provided with an insertion portion 151 which protrudes downward; the inverting member 11 is provided with an upper and lower adjusting hole 111, left and right adjusting holes 112, and an insertion hole communicating with the left and right adjusting holes 112. 113, the insertion portion 151 passes through the insertion hole 113 and is installed on the flip member 11 through a retaining member 16 , and the upper and lower adjusting holes 111 are mounted with one end against the adjusting structure 15 The upper and lower adjusting members 153 on the lower side are provided with left and right adjusting members 154 whose one end can abut against the insertion portion 151.

 The two-dimensional adjustment displacement inversion mechanism of the present invention 1 They can be used in pairs in the front-end maintenance unit of the projection type image display, and are respectively mounted on the left and right inner side surfaces of the front maintenance display unit case, which have a symmetrical structure. Figure 1-2, 3-5 As shown, in actual use, the adjustment structure 15 of the present invention needs to be separately mounted on the screen unit 2 to be integrated with the screen unit 2; the fixing member 12 of the present invention is fixed to the casing 3, and the flip member 11 The long link 13 and the short link 14 are fixed to the case 3 through the fixing member 12, and are integrated with the case 3; the screen unit 2 passes through the insertion portion 151 on the adjustment structure 15 The card is sleeved in the insertion hole 113 of the flip member 11, and the screen unit 2 is prevented from falling off during the flipping process by the anti-drop assembly 16 to realize the screen unit 2 and the cabinet 3 Connection. When the splicing wall system is spliced, by adjusting the adjustment of the upper and lower adjusting members 153 and the left and right adjusting members 154 in the present invention, the adjustment of the screen unit 2 can be realized, thereby making each screen unit in the splicing wall system 2 seams are evenly sized.

 Specifically, the upper and lower adjustment members 153 of the present invention can be along the upper and lower adjustment holes 111 on the flip member 11 The latter moves downwards, thereby causing the adjustment structure 15 to move up or down to achieve an upward or downward adjustment. Wherein, when the downward adjustment is performed, the upper and lower adjustment members 153 move downward and the adjustment structure 15 The opposite end of the lower side loses the supporting force on the lower side of the adjustment structure 15, and the adjustment structure 15 moves downward with the upper and lower adjustment members 153 under the action of its own weight, thereby achieving downward adjustment.

 The left and right adjustment members 154 of the present invention can move left and right along the left and right adjustment holes 112 on the flip member 11, thereby driving the adjustment structure 15 Move left and right to achieve left and right adjustments. Wherein, when adjusting left and right, two tilting mechanisms 1 that can adjust the displacement in two dimensions on the left and right inner sides can be adjusted to each other, such as adjusting the screen unit to the left 2 The position of the left and right adjustment members 154 of the two-dimensionally adjustable displacement mechanism 1 on the right inner side can be adjusted to the left, and then the two-dimensionally adjustable displacement inversion mechanism on the left inner side can be adjusted. The left and right adjustment members 154 are adjusted to the left to push the insertion portion 151 against which the insertion portion 151 moves, and the insertion portion 151 drives the adjustment structure 15 to move to the left to drive the screen unit 2 move to the left. Similarly, the rightward adjustment of the screen unit 2 is similar to the adjustment to the left.

 In the specific implementation process, as shown in Fig. 6, the adjustment structure 15 can be realized by a plate structure. Specifically, the insertion portion on the adjustment structure 15 151 Two sets can be provided, and the detachment prevention assembly connects the bottom end faces of the two insertion portions 151. Preferably, the insertion portion 151 is a boss or a rib. Among them, in order to be able to adjust the structure 15 Mounted to the screen unit, the adjustment structure mounting hole 152 is provided on the adjustment structure 15.

 In the specific implementation process, as shown in Figures 1, 2, and 7, the setting of the anti-drop assembly 16 is mainly to prevent the adjustment structure. It is detached from the flip member 11 during the turning process. Specifically, the retaining assembly 16 includes a retaining member 161 and a retaining screw 162, and the retaining member 161 is respectively passed through the retaining screw 162. Threaded to the bottom end of the two inserts. Preferably, as shown in Figures 1, 2, 6 and 7, the bottom end surface of the insertion portion 151 is provided with a screw hole 1511, and the two ends of the retaining member 161 are respectively provided with screw holes. Flange-proof hole 1611 corresponding to position 1511, anti-drop screw 162 threaded anti-drop hole 1611 and screw hole 1511, so that adjustment structure 15 and retaining piece 161 The connection is integrated to prevent the insertion portion 151 of the adjustment structure 15 from coming out of the insertion hole 113.

 In the specific implementation process, the flip member of the present invention can be realized by the structure shown in FIG. Specifically, the flip member includes a body portion 114 And the bent portion 115, the upper and lower adjustment holes 111, the left and right adjustment holes 112, and the insertion holes 113 are both provided on the main body portion 114, and the bent portion 115 It is used to connect the long link and the short link, and has a rod connecting hole 1151. The insertion hole 113 is provided corresponding to two insertion portions, and the two insertion portions of the adjustment structure are respectively sleeved on the two insertion holes 113 of the flip member. The inner side surfaces of the two insertion portions are respectively fixed to the inner side surfaces of the insertion holes 113 of the inverting member, and the inversion of the two surfaces is restricted when the inverting member 11 is turned over.

 In the specific implementation process, the fixing member 12 can be realized by the structure shown in FIG. Specifically, as shown in FIG. 13, the fixing member 12 A fixing hole 121, a shaft hole 122, a second locking hole 123 and a fourth locking hole 124 are provided. The fixing member 12 is mounted on the box through the fixing hole 121; the shaft hole on the fixing member 12 122 For the long link, the short link rotates around the axis, and the second locking hole 123 and the fourth locking hole 124 can lock the rotation of the long link and the short link.

 At the same time, as shown in FIG. 10, one end of the connecting member of the long link 13 is provided with a first locking hole 131, and the first locking hole 131 Corresponding to the position of the second locking hole on the fixing member, the first locking hole 131 and the second locking hole are fixed by the first locking screw. In addition, the long link 13 is provided with a long link connecting hole for connecting the flip member and the fixing member. 132.

 As shown in FIG. 11, one end of the short link 14 connecting the fixing member is provided with a third locking hole 141, and a third locking hole 141. Corresponding to the position of the fourth locking hole on the fixing member, the third locking hole 141 and the fourth locking hole are fixed by the second locking screw. In addition, the short link 14 is provided with a short link connecting hole for connecting the flip member and the fixing member. 142.

In the specific implementation process, in order to make the long link and the short link have small wear and small friction during rotation, and the rotation of the long link and the short link is smooth, the present invention adopts the following structure:

 As shown in Fig. 2, the flip member 11 is connected to the long link 13 via the long pin 17, and the short pin 18 and the short link 14 are provided. The connecting, long link 13 is also connected to the fixing member 12 via another long pin 17, and the short connecting rod 14 is also connected to the fixing member 12 via another short pin 18; in addition, the long connecting rod 13 is connected to the flip member One end of the 11 is also connected to the long pin shaft 17 via a bushing 19, and one end of the short link 14 connecting the flip member 11 is also connected to the pin shaft 18 through the bushing 19, and the fixing member 12 is also passed through the bushing. 19 Connect to the other long pin 17 and the other short pin 18. In order to avoid gaps in the joints of the various components, the long link 13 and the short link 14 are caused. When the sliding occurs in an unnecessary situation, the screen unit is turned over, and the connection between the long pin shaft 17 and the long link 13, the fixing member 12, and the flip member 11 is closely adhered, and the short pin 18 and the short link 14 are 14 The joints of the fixing member 12 and the flip member 11 are closely fitted, and the bushing 19 and the long connecting rod 13, the short connecting rod 14, the fixing member 12, and the turning member 11 The joints are tightly fitted to avoid gaps and prevent unnecessary sliding of the screen unit during normal use. For specific assembly, as shown in Figures 1, 2, and 8-11, the bushing 19 The sleeve 19 is sleeved on the shaft hole 122 of the fixing member 12, and the long pin 17 is placed on the long link connecting hole 132 at one end of the long link 13 connecting the fixing member 12, and then the bushing is connected by a connecting screw 19 And the long pin 17 can complete the connection of the fixing member 12 and the long connecting rod 13. At this time, the bushing 19 and the rotating shaft hole 122 of the fixing member 12 are closely fitted, and the long pin shaft 17 and the long connecting rod connecting hole are tightly fitted. 132 Tightly fit; similarly, another bushing 19 is placed on the other shaft hole 122 of the fixing member 12, and the short pin 18 is placed on the short connecting rod of the short connecting rod 14 connecting the fixing member 12 On the 142, the bushing 19 and the short pin 18 are connected by a connecting screw to complete the connection of the fixing member 12 and the short connecting rod 14. At this time, the bushing 19 and the fixing member 12 have another rotating shaft hole. 122 Fits tightly, and the short pin 18 fits snugly against the short link connecting hole 142. When connecting the flip member 11 and the long link 13, the other bushing 19 is tightly fitted over the long link 13 to connect the flip member On the long connecting rod hole 132 at one end, the other long pin 17 is tightly fitted over the rod connecting hole 1151 of the flip member 11, and then the bushing 19 and the long pin shaft 17 are connected by a connecting screw. The connection between the flip member 11 and the long link 13 can be completed; similarly, when the flip member 11 and the short link 14 are connected, the other bushing 19 is tightly fitted over the short link 14 to connect the flip member 11 On the short link connecting hole 142 at one end, another short pin 18 is tightly fitted over the other rod connecting hole 1151 of the flip member 11, and then the bushing 19 and the short pin shaft are connected by a connecting screw. The connection of the flip member 11 to the short link 14 is completed.

 The same or similar reference numerals correspond to the same or similar parts;

 The positional relationship is described in the drawings for illustrative purposes only and is not to be construed as limiting the invention;

It is apparent that the above-described embodiments of the present invention are merely illustrative of the present invention and are not intended to limit the embodiments of the present invention. Other variations or modifications of the various forms may be made by those skilled in the art in light of the above description. There is no need and no way to exhaust all of the implementations. Any modifications, equivalent substitutions and improvements made within the spirit and scope of the invention are intended to be included within the scope of the appended claims.

Claims (10)

1. An inverting mechanism capable of adjusting displacement in two dimensions, comprising a flipping member, a fixing member mounted on the box body, a long connecting rod and a short connecting rod connected to the fixing member at one end and the rotating member at the other end, wherein The utility model comprises an adjusting structure for mounting on the screen unit, wherein the lower side of the adjusting structure is provided with an insertion portion protruding downward; the turning member is provided with an upper and lower adjusting hole, a left and right adjusting hole and an insertion hole communicating with the left and right adjusting holes. The insertion portion passes through the insertion hole and is mounted on the flip member through a retaining assembly. The upper and lower adjusting holes are provided with an upper and lower adjusting member having one end abutting on the lower side of the adjusting structure, and one end of the left and right adjusting holes is mounted on the inserting portion. Left and right adjustments on the upper.
2. According to claim 1 The inverting mechanism capable of adjusting displacement in two dimensions is characterized in that the insertion portion comprises two insertion holes, and two insertion holes are provided corresponding to the insertion portion.
3. According to claim 2 The inverting mechanism capable of adjusting the displacement in two dimensions is characterized in that the anti-drop assembly comprises a retaining member and a retaining screw, and the two ends of the retaining member are respectively screwed with the bottom end faces of the two insertion portions by a retaining screw.
4. According to claim 1 The inverting mechanism capable of adjusting the displacement in two dimensions is characterized in that the inverting member is connected to the long connecting rod and the short connecting rod through the long pin shaft and the short pin shaft respectively, and the long connecting rod and the short connecting rod respectively pass the long pin shaft, The short pin is connected to the fixing member.
5. According to claim 4 The inverting mechanism capable of adjusting the displacement in two dimensions is characterized in that the connection between the long pin shaft and the long connecting rod, the fixing member and the turning member is closely adhered, the short pin shaft and the short connecting rod, the fixing member and the turning piece The connections are tightly fitted.
6. According to claim 4 The inverting mechanism capable of adjusting the displacement in two dimensions is characterized in that: one end of the long connecting rod and the short connecting rod connecting the inverting member are respectively connected to the long pin shaft and the short pin shaft through the bushing;

   The fixing member is connected to the long pin shaft and the short pin shaft through a bushing.
7. According to claim 6 The inverting mechanism capable of adjusting the displacement in two dimensions is characterized in that the connection between the bushing and the long connecting rod, the short connecting rod, the fixing member and the turning member are closely adhered.
8. According to claim 1 The inverting mechanism capable of adjusting displacement in two dimensions is characterized in that: one end of the long connecting rod fixing member is provided with a first locking hole, and the fixing member is provided with a second corresponding to the position of the first locking hole The locking hole, the first locking hole and the second locking hole are fixed by the first locking screw connection.
9. According to claim 1 The inverting mechanism capable of adjusting displacement in two dimensions is characterized in that: one end of the short link connecting fixing member is provided with a third locking hole, and the fixing member is provided with a fourth corresponding to the position of the third locking hole The locking hole, the third locking hole and the fourth locking hole are fixed by the second locking screw connection.
10. The two-dimensionally adjustable displacement inverting mechanism according to any one of claims 1 to 9, wherein the insertion portion is a boss or a rib.