VR display equipment for movie and television animation design
Through the improvement of the projection structure, the projection body height adjustment and split-screen display of the VR display device are realized, which solves the problem of limited computer screen area, expands the display area, and improves the clarity and stability of animation design details.
Patent Information
- Application Number
- CN202510268524.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-07-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Due to the limited computer screen area of existing VR display devices, the animation design details cannot be displayed accurately and clearly, reducing the display intensity.
The vertical frame and rotating motor of the projection structure drive the threaded rod to achieve height adjustment of the projection body, and aligning the center of the screen with the center of the screen, using the limit frames and projection lenses on the left and right sides for split screen display, expanding the display area.
It effectively expands the display area, improves the clarity of animation design details, facilitates multiple people to watch, and improves the stability and accuracy of the display.
Smart Images

Figure CN120255254A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of VR display technology, and more specifically to a VR display device used for film and television animation design. Background Art
[0002] Film and television animation design brings visual and auditory enjoyment to the audience by creating fictional storylines and characters. It is not only a form of entertainment, but also a unique way of artistic expression with profound cultural connotations and aesthetic value. After the preliminary design of film and television animation is completed, it can be combined with dedicated VR display equipment to display the design of each process. Therefore, through the display characteristics, it is easy to find defects in the design for accurate debugging and modification in the later stage. In summary, the inventors have found that the existing VR display devices mainly have the following defects: since the existing VR display devices are usually displayed and played based on computer screens, the area of the computer screen is limited, so the displayed content images will be restricted, so some detail areas in the animation design cannot be displayed accurately and clearly, which will reduce the later precise debugging and modification of the detail areas in the design, thereby reducing the display strength of the VR display device. Summary of the invention
[0003] The technical solution adopted by the present invention to achieve the technical purpose is: a VR display device for film and television animation design, whose structure includes: a host, a data connection terminal, a control terminal, a picture control screen, and a projection structure. The upper end of the host controls the picture control screen through the data connection terminal and the control terminal. The picture control screen is installed in a vertical position on the upper side of the host and also carries a projection structure on the outside.
[0004] As a further improvement of the present invention, the projection structure is provided with a vertical frame, the lower end of the vertical frame is connected to a splicing block and the upper end is also provided with a rotating motor, the top of the rotating motor is connected to a power-carrying electric shaft, and a threaded rod is also provided at the center of the lower end of the rotating motor, and a slider is penetrated by the threaded rod. A sliding rail is also provided on the surface of the vertical frame to allow one end of the slider to penetrate, and the slider is connected to the center of the back of the projection body through the sliding rail.
[0005] As a further improvement of the present invention, the projection body is further provided with a splicing block, the center of which is connected to a central calibration lens and connection frames are fixed on the left and right sides. The limit frame is positioned by the connection frame, and the projection lens is installed by the limit frame.
[0006] As a further improvement of the present invention, the vertical frame of the projection structure and the splicing block are used to fix the projection structure to the screen control panel. Then, the vertical frame drives the slider to slide up and down by means of the slide rail and the threaded rod of the rotating motor to complete the height adjustment of the projection main body. The projection main body is centered with the external screen through the central calibration lens. At the same time, the connection frames on both the left and right sides use the carried projection lenses to display the animation design content in a large range left and right.
[0007] As a further improvement of the present invention, the data connection end at the upper end of the host is composed of a hard disk connection hole and a circuit connection hole, and both the control end and the screen control panel are in a touch form. The control end combines with the host to set the data content of the screen control panel. Then, the screen control panel adjusts the magnification or orientation of the screen content of the projection structure through the touch state.
[0008] As a further improvement of the present invention, the vertical frame can be installed at the external center of the screen control panel through the splicing block. Then, one end of the slider can be fixedly connected to the projection main body by passing through the slide rail, and the slider is controlled by driving the threaded rod through the rotating motor.
[0009] As a further improvement of the present invention, the central calibration lens of the splicing block includes an infrared calibrator. A set of connection frames are provided on each of the left and right sides of the splicing block and are set in a symmetric orientation, and a plurality of projection lenses are built in. Then, the carried data power line extends to the area of the screen control panel for electrical connection.
[0010] As a further improvement of the present invention, the connection frame is further provided with a clamping block. The clamping block is installed inside the connecting sleeve, and the connecting sleeve is installed at the center of the side of the frame body. A parallel plate is connected to the back of the frame body. A cavity is opened at the front end of the frame body, and light-shielding plates are further connected to the upper and lower edges of the front end of the frame body and are arranged above and below the cavity.
[0011] As a further improvement of the present invention, the length of the clamping block is less than the length of the connecting sleeve, and the area of the frame body is the same as the area of the parallel plate. The parallel plate covers the back of the frame body, and the light-shielding plates are set in a symmetric orientation at the upper and lower edges of the front end of the frame body.
[0012] As a further improvement of the present invention, the parallel plate is further provided with a locking bolt. The locking bolt is arranged in the surface area of the fitting frame, and the fitting frame covers the edge of the plate body. A restraint is connected to the surface of the plate body to determine the position of the clamping frame.
[0013] As a further improvement of the present invention, the inner wall of the fitting frame is in a polished form and is parallelly attached to the edge of the plate body. The upper and lower ends of the restraint of the plate body are embedded and locked at the center of the edge of the clamping frame. The clamping frame is made of rubber, and the limiting frame is parallelly embedded.
[0014] As a further improvement of the present invention, the host is further provided with an insulating plate, which covers the lower part of the chassis, and fixing blocks are connected to both the left and right sides of the chassis. There are a first power supply slot and a second power supply slot opened at the upper end of the chassis, which are respectively connected to the data communication end, the control end, and the screen control panel.
[0015] As a further improvement of the present invention, the insulating plate is made of plastic and has a matte texture at the bottom layer. A set of fixing blocks are provided on each of the left and right sides of the chassis and are set in a symmetrical orientation. The width of the first power supply slot is greater than that of the second power supply slot.
[0016] As a further improvement of the present invention, the fixing block is further provided with an insertion block, which is fixed at the center of the surface layer of the adsorption plate, and the adsorption plate covers the side part of the solid block. A rubber block is connected to the center of the bottom of the solid block. The solid block is inserted and connected to the center of the side of the chassis through the side adsorption plate and the insertion block.
[0017] As a further improvement of the present invention, the insertion block and the adsorption plate form a "T" shape and are installed in parallel on the side of the solid block. The lower end of the solid block is perpendicular to the rubber block.
[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. After the projection structure of the present invention is further improved, the rotation motor of the vertical frame drives the threaded rod to enable the slider to drive the projection body to adjust the height through the slide rail. Then, the projection body can be combined with the center calibration lens to coincide with the center of the screen, ensuring that the limit frames on both sides and the projection lens are used for split-screen display. Therefore, two screens can be effectively formed for display, expanding the display area and facilitating viewing by multiple people. Then, through the characteristic of expanding the range, the details of the animation design can be clearly displayed effectively, avoiding the situation that the detailed areas cannot be clearly displayed in a limited screen.
[0019] 2. After the connection frame of the present invention is further improved, the connection sleeve and the clamping block of the frame body can be used to complete the connection with the side of the splicing block. Then, the parallel plate of the frame body can be used to embed the limit frame and the projection lens in combination with the cavity. At the same time, the light-shielding plates in the upper and lower regions at the front end can cover up and down to prevent external light sources from invading and affecting the stability of the picture display of the projection lens, improving the stability during display. Furthermore, the parallel plate can use the restraint parts to determine the positions of multiple rubber clamping frames, improving the stability when the limit frame is installed and preventing the offset of the clamping frame during disassembly and assembly from affecting the origin positioning accuracy of the projection lens.
[0020] 3. After the main body of the present invention is further improved, the insulating board at the bottom of the chassis can prevent power leakage caused by contact between the bottom layer and components. Then, the rubber blocks of the fixing blocks on the left and right sides are vertically embedded to improve the vertical fixing of the overall main body at the origin, enabling the display device to stand upright stably at the origin, avoiding displacement caused by external factors during display playback and affecting the precise projection display, and ensuring the stability of the display device during use. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic structural diagram of a VR display device for film and television animation design.
[0022] Figure 2 It is a schematic three-dimensional structural diagram after the projection structure is improved.
[0023] Figure 3 It is a schematic cross-sectional structural diagram after the projection main body is improved.
[0024] Figure 4 It is a schematic three-dimensional structural diagram after the connection frame is improved.
[0025] Figure 5 It is a schematic cross-sectional structural diagram after the parallel plate is improved.
[0026] Figure 6 It is a schematic three-dimensional structural diagram after the main body is improved.
[0027] Figure 7 It is a schematic three-dimensional structural diagram after the fixing block is improved.
[0028] In the figure: main body - 1, data connection end - 2, control end - 3, screen control panel - 4, projection structure - 5; vertical frame - 51, splicing block - 52, rotary motor - 53, wire spool - 54, threaded rod - 55, slider - 56, slide rail - 57, projection main body - 58; splicing block - 581, center calibration lens - 582, connection frame - 583, limit frame - 584, projection lens - 585; clip - 5831, connecting sleeve - 5832, frame body - 5833, parallel plate - 5834, cavity - 5835, light - shielding plate - 5836; locking bolt - 8341, fitting frame - 8342, plate body - 8343, restraint member - 8344, clamping frame - 8345; insulating board - 11, chassis - 12, fixing block - 13, power - on slot 1 - 14, power - on slot 2 - 15; insert block - 131, adsorption plate - 132, solid block - 133, rubber block - 134. DETAILED DESCRIPTION OF THE INVENTION
[0029] The present invention will be further described below in conjunction with the accompanying drawings: Embodiment
[0030] Figures 1 to 5 As shown: The present invention provides a VR display device for film and television animation design, The structure thereof includes a host 1, a data connection end 2, a control end 3, a screen control panel 4, and a projection structure 5. The upper end of the host 1 controls the screen control panel 4 through the data connection end 2 and the control end 3. The screen control panel 4 is vertically installed on the upper side of the host 1 and is also equipped with a projection structure 5 externally.
[0031] Among them, the projection structure 5 is provided with a vertical frame 51. The lower end of the vertical frame 51 is connected with a splicing block 52 and the upper end is also provided with a rotating motor 53. The top of the rotating motor 53 is connected with a wire spool 54. At the center of the lower end of the rotating motor 53, there is also a threaded rod 55. The slider 56 is penetrated by the threaded rod 55. The surface layer of the vertical frame 51 is also provided with a slide rail 57 for one end of the slider 56 to penetrate. The slider 56 is connected to the center of the back of the projection main body 58 through the slide rail 57.
[0032] Among them, the projection main body 58 is also provided with a splicing block 581. The center of the splicing block 581 is connected with a center calibration lens 582 and connection frames 583 are fixed on both the left and right sides. The limiting frame 584 is positioned through the connection frames 583, and the projection lens 585 is installed in the limiting frame 584.
[0033] Among them, the vertical frame 51 of the projection structure 5 is fixed to the screen control panel 4 through the splicing block 52. Then, the vertical frame 51 drives the slider 56 to slide up and down by means of the slide rail 57 and the threaded rod 55 of the rotating motor 53 to complete the height adjustment of the projection main body 58. The projection main body 58 is centered with the external screen through the center calibration lens 582. At the same time, the connection frames 583 on both the left and right sides use the carried projection lenses 585 to display the animation design content in a large range left and right.
[0034] Among them, the data connection end 2 at the upper end of the host 1 is composed of a hard disk connection hole and a circuit connection hole, and both the control end 3 and the screen control panel 4 are in a touch form. The control end 3, in combination with the host 1, sets the data content of the screen control panel 4. Then, the screen control panel 4 magnifies or adjusts the orientation of the screen content of the projection structure 5 in a touch state.
[0035] Among them, the vertical frame 51 can be installed at the external center of the screen control panel 4 through the splicing block 52. Then, one end of the slider 56 can be fixedly connected to the projection main body 58 by penetrating the slide rail 57, and the slider 56 is controlled by the threaded rod 55 driven by the rotating motor 53.
[0036] Among them, the central calibration lens 582 of the splicing block 581 includes an infrared calibrator. A set of connection frames 583 are provided on each of the left and right sides of the splicing block 581 and are set in a symmetric orientation, and a plurality of projection lenses 585 are built in. Then, a data power line is carried and extended to the area of the screen control panel 4 for electrical connection.
[0037] Among them, the connection frame 583 is further provided with a clamping block 5831. The clamping block 5831 is installed inside the connecting sleeve 5832, and the connecting sleeve 5832 is installed at the center of the side of the frame body 5833. A parallel plate 5834 is connected to the back of the frame body 5833. A cavity 5835 is opened at the front end of the frame body 5833, and light-shielding plates 5836 are connected to the upper and lower edges of the front end of the frame body 5833 and are arranged in the upper and lower positions of the cavity 5835.
[0038] Among them, the length of the clamping block 5831 is less than the length of the connecting sleeve 5832, and the area of the frame body 5833 is the same as the area of the parallel plate 5834. The parallel plate 5834 covers the back of the frame body 5833, and the light-shielding plates 5836 are set in a symmetric orientation at the upper and lower edges of the front end of the frame body 5833.
[0039] Among them, the parallel plate 5834 is further provided with a locking bolt 8341. The locking bolt 8341 is arranged in the surface area of the fitting frame 8342, and the fitting frame 8342 covers the edge of the plate body 8343. A restraint member 8344 is connected to the surface of the plate body 8343 to determine the position of the clamping frame 8345.
[0040] Among them, the inner wall of the fitting frame 8342 is in a polished shape and is parallelly attached to the edge of the plate body 8343. The upper and lower ends of the restraint member 8344 of the plate body 8343 are embedded and locked at the center of the edge of the clamping frame 8345. The clamping frame 8345 is made of rubber and allows the limiting frame 584 to be parallelly embedded.
[0041] Specific functions and operation processes of this embodiment: In the present invention, when the host 1 of the VR display device for film and television animation design is installed in the corresponding display origin area and connected to an external power supply, data debugging of the picture control screen 4 can be directly performed through the control terminal 3. At the same time, connection with a relevant data hard disk or a computer data line is completed according to the hard disk connection hole and the line connection hole of the data communication terminal 2, achieving the transmission of animation design data. Subsequently, the projection structure 5 is controlled through the picture control screen 4, enabling the picture displayed by the projection structure 5 to achieve changes in the static orientation and manual magnification of the detail area according to the touch adjustment of the picture control screen 4, improving the display effect of the detail area and the debugging effect in the later stage. Furthermore, the vertical frame 51 of the projection structure 5 can be installed at the center of the back of the picture control screen 4 through the splicing block 52, and then electrical connection with the host 1 is completed by using the rotary motor 53 and the energized circuit 54 at the top, enabling the rotary motor 53 to drive the threaded rod 55 to rotate forward and backward, allowing the slider 56 to slide stably up and down in the slide rail 57 area, and at the same time adjusting the height of the projection main body 58, ensuring that the projection main body 58 can stably display the animation design picture at an appropriate height. At the same time, the splicing block 581 of the projection main body 58 can be connected to one end of the slider 56, and then aligned with the center of the screen by combining the center calibration lens 582, enabling the connection frames 583 on both sides to position the projection lens 585 according to the limiting frame 584. Therefore, the projection lens 585 can project the content of the picture control screen 4, and at the same time, the display range of the picture can be expanded by using the left and right split screen effect, making it convenient for multiple people to watch. Furthermore, through the picture expansion effect, the display of the detail area can be made clearer, improving the debugging accuracy of the detail area in the later stage. Subsequently, the frame body 5833 of the connection frame 583 can be fixedly connected to the side of the splicing block 581 through the side connection sleeve 5832 and the clamping block 5831, completing the connection between the frame body 5833 and the splicing block 581. Furthermore, one end of the frame body 5833 can be covered by the parallel plate 5834, and then the limiting frame 584 and the projection lens 585 are accurately embedded and positioned by using the cavity 5835. When the projection lens 585 is in use, the light shielding plates 5836 in the upper and lower areas at the front end of the frame body 5833 can block external light sources, preventing the invasion of external light sources from reducing the projection clarity of the projection lens 585, so as to improve the usage intensity of the display device. Subsequently, the plate body 8343 of the parallel plate 5834 can be connected to the edge of the frame body 5833 through the locking bolt 8341 of the fitting frame 8342, achieving a detachable effect. Furthermore, the position of the rubber clamping frame 8345 can be determined by the surface restraint member 8344 of the plate body 8343, so that the clamping frame 8345 can embed the limiting frame 584, and then the reinforcement of the restraint member 8344 prevents the position deviation caused during disassembly and assembly, ensuring the position firmness of the overall component and improving the stability and position accuracy during display. Embodiment
[0042] Figures 6 to 7 As shown in: The present invention provides a VR display device for film and television animation design, Its structure includes that the main unit 1 is also provided with an insulating plate 11, the insulating plate 11 covers the lower part of the chassis 12 and fixing blocks 13 are connected to both left and right sides of the chassis 12. An energizing slot one 14 and an energizing slot two 15 are opened at the upper end of the chassis 12 and are respectively connected to the data communication end 2, the control end 3, and the screen control panel 4.
[0043] Among them, the insulating plate 11 is made of plastic and the bottom layer is in a frosted form. One set of fixing blocks 13 is provided on each of the left and right sides of the chassis 12 and is set in a symmetrical orientation. The width of the energizing slot one 14 is greater than the width of the energizing slot two 15.
[0044] Among them, the fixing block 13 is also provided with an insertion block 131. The insertion block 131 is fixed at the center of the surface layer of the adsorption plate 132 and the adsorption plate 132 covers the side part of the solid block 133. A rubber block 134 is connected to the center of the bottom of the solid block 133. The solid block 133 is inserted and connected to the center of the side of the chassis 12 through the side adsorption plate 132 and the insertion block 131.
[0045] Among them, the insertion block 131 and the adsorption plate 132 form a "T" shape and are installed in parallel on the side of the solid block 133. The lower end of the solid block 133 is perpendicular to the rubber block 134.
[0046] The specific functions and operation processes of this embodiment: In the present invention, the chassis 12 of the main unit 1 can be in contact with the outside through the bottom insulating plate 11. Then, the insulating property of the insulating plate 11 can prevent the leakage of electric energy. Furthermore, the fixing blocks 13 on both left and right sides of the main unit 12 can use the rubber block 134 at the center of the lower end of the solid block 133 to vertically embed into the use area. Through the rebound effect, the overall vertical stability of the main unit 1 can be improved, preventing the shaking and instability caused by external factors during display, improving the use intensity of the overall display device. Furthermore, the upper end of the chassis 12 can complete the fixed electrical connection with the data communication end 2, the control end 3, and the screen control panel 4 through the cooperation of the energizing slot one 14 and the energizing slot two 15. At the same time, the solid block 133 of the fixing block 13 can complete the insertion and adsorption connection with the centers of the left and right side edges of the chassis 12 through the side adsorption block 132 and the insertion block 131, improving the splicing and fixing effect between components.
[0047] Using the technical solution of the present invention, or those skilled in the art being inspired by the technical solution of the present invention to design a similar technical solution and achieving the above technical effects shall all fall within the protection scope of the present invention.
Claims
1. A VR display device for film and television animation design, the structure of which includes: Host (1), data connection end (2), control end (3), screen control panel (4), projection structure (5). The upper end of the host (1) controls the screen control panel (4) through the data connection end (2) and the control end (3). The screen control panel (4) is installed vertically on the upper side of the host (1), and the external part also carries a projection structure (5). It is characterized in that: The projection structure (5) is provided with a vertical frame (51). The lower end of the vertical frame (51) is connected with a splicing block (52), and the upper end is also provided with a rotating motor (53). The top of the rotating motor (53) is connected with a wire spool (54). In the center of the lower end of the rotating motor (53), there is also a threaded rod (55). The slider (56) is penetrated by the threaded rod (55). The surface layer of the vertical frame (51) is also provided with a slide rail (57) for one end of the slider (56) to penetrate. The slider (56) is connected to the center of the back of the projection main body (58) through the slide rail (57); The projection main body (58) is also provided with a splicing block (581). The center of the splicing block (581) is connected with a center calibration lens (582), and connection frames (583) are fixed on the left and right sides. The limit frame (584) is positioned through the connection frame (583), and the projection lens (585) is installed in the limit frame (584); The vertical frame (51) of the projection structure (5) and the splicing block (52) are used to fix the screen control panel (4). Then, the vertical frame (51) drives the slider (56) to slide up and down by using the slide rail (57) and the threaded rod (55) of the rotating motor (53) to complete the height adjustment of the projection main body (58). The projection main body (58) is aligned with the center of the external screen through the center calibration lens (582). At the same time, the connection frames (583) on the left and right sides use the carried projection lenses (585) to display the animation design content in a large range left and right.
2. The VR display device for film and television animation design according to claim 1, wherein: The data connection end (2) at the upper end of the host (1) is composed of a hard disk connection hole and a circuit connection hole, and both the control end (3) and the screen control panel (4) are in a touch form. The control end (3) combines with the host (1) to set the data content of the screen control panel (4). Then, the screen control panel (4) magnifies or adjusts the orientation of the screen content of the projection structure (5) through the touch state.
3. A VR display device for film and television animation design according to claim 1, characterized in that: The vertical frame (51) can be installed at the external center of the screen control panel (4) through the splicing block (52). Then, one end of the slider (56) can be fixedly connected to the projection main body (58) by penetrating the slide rail (57). The rotating motor (53) drives the threaded rod (55) to control the slider (56).
4. A VR display device for film and television animation design according to claim 1, characterized in that: The center calibration lens (582) of the splicing block (581) includes an infrared calibrator. There is a set of connection frames (583) on each of the left and right sides of the splicing block (581), which are set symmetrically and internally provided with a plurality of projection lenses (585). Then, it carries a data power line to extend to the area of the screen control panel (4) for electrical connection.
5. A VR display device for film and television animation design according to claim 1, characterized in that: The connecting frame (583) is further provided with a clamping block (5831). The clamping block (5831) is installed inside the connecting sleeve (5832), and the connecting sleeve (5832) is installed at the center of the side of the frame body (5833). A parallel plate (5834) is connected to the back of the frame body (5833). A cavity (5835) is opened at the front end of the frame body (5833), and light-shielding plates (5836) are connected to the upper and lower edges of the front end of the frame body (5833) and are arranged above and below the cavity (5835); The length of the clamping block (5831) is less than the length of the connecting sleeve (5832), and the area of the frame body (5833) is the same as the area of the parallel plate (5834). The parallel plate (5834) covers the back of the frame body (5833), and the light-shielding plates (5836) are set symmetrically at the upper and lower edges of the front end of the frame body (5833).
6. A VR display device for film and television animation design according to claim 5, characterized in that: The parallel plate (5834) is further provided with a locking bolt (8341). The locking bolt (8341) is arranged in the surface area of the fitting frame (8342), and the fitting frame (8342) covers the edge of the plate body (8343). A restraint member (8344) is connected to the surface of the plate body (8343) to determine the position of the clamping frame (8345); The inner wall of the fitting frame (8342) is in a polished shape and is parallelly attached to the edge of the plate body (8343). The upper and lower ends of the restraint member (8344) of the plate body (8343) are embedded and locked at the center of the edge of the clamping frame (8345). The clamping frame (8345) is made of rubber and allows the limiting frame (584) to be parallelly embedded.
7. A VR display device for film and television animation design according to claim 1, characterized in that: The main machine (1) is further provided with an insulating plate (11). The insulating plate (11) covers the lower part of the chassis (12), and fixing blocks (13) are connected to the left and right sides of the chassis (12). An energizing slot one (14) and an energizing slot two (15) are opened at the upper end of the chassis (12) and are respectively connected to the data communication end (2), the control end (3), and the picture control screen (4); The insulating plate (11) is made of plastic and has a frosted bottom layer. One set of fixing blocks (13) is provided on each of the left and right sides of the chassis (12) and is set symmetrically. The width of the energizing slot one (14) is greater than the width of the energizing slot two (15).
8. The VR display device for film and television animation design according to claim 7, characterized in that: The fixing block (13) is further provided with an insertion block (131). The insertion block (131) is fixed at the center of the surface of the adsorption plate (132), and the adsorption plate (132) covers the side part of the solid block (133). A rubber block (134) is connected to the center of the bottom of the solid block (133). The solid block (133) is inserted and connected to the center of the side of the chassis (12) through the side adsorption plate (132) and the insertion block (131); The insertion block (131) and the adsorption plate (132) form a "T" shape and are parallelly installed on the side of the solid block (133). The lower end of the solid block (133) is perpendicular to the rubber block (134).