Manual and automatic integrated unloading device and display screen module structure

Abstract

The present invention discloses a manual-automatic integrated unloading device, including an electric drive, a transmission assembly, a support member and a push rod, the push rod is movably arranged along its length direction, the electric drive and the push rod are respectively connected to the transmission assembly, the electric drive drives the push rod to push against the support member through the transmission assembly to increase the distance between the support member and the electric drive, and also includes a rotating handle connected to the transmission assembly, the rotating handle drives the push rod to push against the support member through the transmission assembly to increase the distance between the support member and the electric drive. For a display screen module with a relatively low installation position, the user can separate the installation frame from the display screen by operating the rotating handle, thereby reducing power consumption and being more environmentally friendly.

Description

Technical Field

[0001] The present invention relates to the technical field of display screens, and in particular to a manual-automatic integrated unloading device and a display screen module structure. Background Art

[0002] The Chinese patent application with application number 201710233922.0 discloses a display screen that can be automatically popped out from a mounting frame. An unloading device is provided on the display screen. The unloading device abuts against the mounting frame to cause relative movement between the unloading device and the mounting frame, thereby separating the display screen and the mounting frame. Specifically, the unloading device includes an electric drive, a transmission assembly, a support member and an ejection rod. The ejection rod is movably arranged along its length direction. The ejection rod cooperates with the support member. The electric drive and the ejection rod are respectively connected to the transmission assembly. The electric drive drives the ejection rod to slide on the support member through the transmission assembly to increase the distance between the support member and the drive member (the support member and / or the ejection rod are provided with an inclined surface and the inclined surface is a mating surface); the electric drive is provided on the display screen, and the support member is provided on the mounting frame, and vice versa.

[0003] At certain times, maintenance personnel can manually separate the display screen and the mounting frame (for example, when the display screen is below 2 meters from the ground), which can reduce power consumption. However, the above-mentioned unloading device does not allow users to perform manual operation. Therefore, the existing unloading device needs to be improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a manual-automatic integrated unloading device and a display screen module having the manual-automatic integrated unloading device.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an integrated manual and automatic unloading device, including an electric drive member, a transmission assembly, a supporting member and an ejection rod, the ejection rod being movably arranged along its length direction, the electric drive member and the ejection rod being respectively connected to the transmission assembly, the electric drive member drives the ejection rod to press against the supporting member through the transmission assembly to increase the distance between the supporting member and the electric drive member, and also includes a rotating handle connected to the transmission assembly, the rotating handle drives the ejection rod to press against the supporting member through the transmission assembly to increase the distance between the supporting member and the electric drive member.

[0006] In order to solve the above technical problems, the present invention also adopts the following technical solutions: a display screen module structure, including a mounting frame and a display screen that are installed in conjunction with each other, the display screen including a bottom shell, a screen body arranged on the front side of the bottom shell and a power box arranged on the back side of the bottom shell, and also including the above-mentioned manual-automatic integrated unloading device.

[0007] The beneficial effect of the present invention is that for a display screen module installed at a relatively low position, the user can increase the distance between the supporting member and the electric drive member by operating the rotating handle, thereby realizing the separation of the installation frame and the display screen without using the electric drive member, which is beneficial to reducing power consumption and is more environmentally friendly. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a cross-sectional view of a display screen module according to Embodiment 1 of the present invention;

[0009] Figure 2 Schematic diagram of the structure of the display screen in the display screen module of the first embodiment of the present invention (back side);

[0010] Figure 3 Schematic diagram of the structure of the display screen in the display screen module of the first embodiment of the present invention (front view);

[0011] Figure 4 This is a structural schematic diagram of the manual-automatic integrated unloading device in the display screen module according to the first embodiment of the present invention (the abutting member is hidden);

[0012] Figure 5 This is a schematic structural diagram of a rotating shaft in a display screen module according to a first embodiment of the present invention;

[0013] Figure 6 This is a schematic structural diagram of a cam in a display screen module according to Embodiment 1 of the present invention;

[0014] Figure 7 It is a structural schematic diagram of another cam in the display screen module of the first embodiment of the present invention;

[0015] Figure 8 It is a simplified schematic diagram of the manual-automatic integrated unloading device in the display screen module of the second embodiment of the present invention (when viewed from the front);

[0016] Fig. 9 It is a simplified schematic diagram of the manual-automatic integrated unloading device in the display screen module of the second embodiment of the present invention (when viewed from above);

[0017] Fig.10 This is a simplified schematic diagram of the manual-automatic integrated unloading device in the display screen module of the third embodiment of the present invention (when viewed from the front);

[0018] Fig.11 This is a simplified schematic diagram of the manual-automatic integrated unloading device in the display screen module of the third embodiment of the present invention (when viewed from above);

[0019] Fig.12 It is a simplified schematic diagram of the manual-automatic integrated unloading device in the display screen module of the fourth embodiment of the present invention (when viewed from the front);

[0020] Fig.13It is a simplified schematic diagram (when viewed from above) of the manual-automatic integrated unloading device in the display screen module according to the fourth embodiment of the present invention.

[0021] Description of labels:

[0022] 1. Mounting frame; 2. Power box; 3. Electric drive member; 4. Transmission assembly; 41. Elastic member; 42. Cam; 421. Limiting hole; 422. Buckle position; 423. Arc surface; 5. Retaining member; 6. Push rod; 61. Wedge block; 62. Protrusion; 7. Rotating handle; 81. Slide groove; 82. Guide member; 9. Rotating shaft;

[0023] 91. turbine; 92. locking section; 10. roller; 11. turntable; 12. movable part. DETAILED DESCRIPTION

[0024] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0025] The most critical concept of the present invention is to add a rotating handle connected to the transmission assembly, and the display screen can be separated from the installation frame by rotating the handle.

[0026] Please refer to Figures 1 to 13 The manual-automatic integrated unloading device includes an electric drive member 3, a transmission assembly 4, a supporting member 5 and an ejection rod 6. The ejection rod 6 is movably arranged along its length direction. The electric drive member 3 and the ejection rod 6 are respectively connected to the transmission assembly 4. The electric drive member 3 drives the ejection rod 6 to push against the supporting member 5 through the transmission assembly 4 to increase the distance between the resisting member 5 and the electric drive member 3. The device also includes a rotating handle 7 connected to the transmission assembly 4. The rotating handle 7 drives the ejection rod 6 to push against the supporting member 5 through the transmission assembly 4 to increase the distance between the resisting member 5 and the electric drive member 3.

[0027] From the above description, it can be seen that the beneficial effect of the present invention is that: for a display screen module with a relatively low installation position, the user can increase the distance between the supporting part and the electric driving part by operating the rotating handle, thereby realizing the separation of the installation frame and the display screen without the need to use the electric driving part, which is beneficial to reducing power consumption and is more environmentally friendly.

[0028] Furthermore, the transmission assembly 4 includes a turntable 11 and a movable part 12, the movable part 12 is arranged away from the supporting part 5, one end of the movable part 12 is rotatably connected to the ejection rod 6, and the other end of the movable part 12 is rotatably connected to the turntable 11; the connection between the movable part 12 and the turntable 11 is eccentrically arranged with the rotation center axis of the turntable 11; the electric drive part 3 and the rotating handle 7 are respectively connected to the turntable 11.

[0029] Furthermore, the transmission assembly 4 includes a rotatably arranged cam 42 , one end of the ejection rod 6 away from the abutment member 5 abuts against the outer edge of the cam 42 , and the electric drive member 3 and the rotary handle 7 are respectively connected to the cam 42 .

[0030] It can be seen from the above description that the transmission assembly has a simple structure and is easy to process.

[0031] Furthermore, it also includes an elastic member 41 , which is connected to the ejection rod 6 , and is used to drive the ejection rod 6 to move toward the direction close to the cam 42 .

[0032] It can be seen from the above description that the provision of the elastic member can ensure that the end of the ejection rod away from the abutment member is always abutted against the cam, that is, the ejection rod can automatically retract.

[0033] Furthermore, the transmission assembly 4 includes a rotatable turntable 11 and a rotatable cam 42, and one end of the ejection rod 6 away from the abutment member 5 abuts against the outer edge of the cam 42;

[0034] It also includes a movable member 12, which is arranged away from the abutting member 5, one end of the movable member 12 is rotatably connected to the ejection rod 6, and the other end of the movable member 12 is rotatably connected to the turntable 11; the connection between the movable member 12 and the turntable 11 is eccentrically arranged with respect to the rotation center axis of the turntable 11;

[0035] The turntable 11 is connected to the electric driving member 3 , and the cam 42 is fixedly connected to the rotating handle 7 , or the cam 42 is connected to the electric driving member 3 , and the turntable 11 is fixedly connected to the rotating handle 7 .

[0036] Furthermore, it also includes an elastic member 41 , which is connected to the ejection rod 6 , and is used to drive the ejection rod 6 to move toward the direction close to the cam 42 .

[0037] Furthermore, the output end of the electric drive component 3 is connected to a rotating shaft 9, the rotating handle 7 is arranged on the rotating shaft 9 and can be rotatably arranged relative to the rotating shaft 9, the turntable 11 connected to the electric drive component 3 is fixed on the rotating shaft 9, or the cam 42 connected to the electric drive component 3 is fixed on the rotating shaft 9.

[0038] From the above description, it can be seen that when the turntable (or cam) fails and cannot move the ejection rod in the direction away from the transmission assembly, the user can control the electric drive or rotating handle connected to the cam (or turntable) to make the manual-automatic integrated unloading device work, which is beneficial to enhance the user experience.

[0039] Furthermore, the transmission assembly 4 includes two rotatable cams 42, and the rotation center axes of the two cams 42 are arranged to coincide with each other; the outer edges of the two cams 42 respectively abut against one end of the ejection rod 6 away from the abutting member 5; one cam 42 is connected to the electric drive member 3, and the other cam 42 is fixedly connected to the rotating handle 7.

[0040] Furthermore, the transmission assembly 4 further includes an elastic member 41 , wherein the elastic member 41 is connected to the ejection rod 6 , and the elastic member 41 is used to drive the ejection rod 6 to move toward a direction close to the cam 42 .

[0041] Furthermore, the output end of the electric drive member 3 is connected to a rotating shaft 9 , the rotary handle 7 is disposed on the rotating shaft 9 and is rotatable relative to the rotating shaft 9 , and the cam 42 connected to the electric drive member 3 is fixed on the rotating shaft 9 .

[0042] Furthermore, the cam 42 includes a first semicircular segment, a rectangular segment and a second semicircular segment. The two opposite ends of the rectangular segment are respectively connected to the first semicircular segment and the second semicircular segment. The end surfaces of the other two ends of the rectangular segment are both concave arc surfaces 423.

[0043] As can be seen from the above description, the concave arc surface allows the end of the ejection rod close to the transmission assembly to slide smoothly on the outer peripheral wall of the cam, thereby avoiding the situation where the ejection rod and the cam are stuck.

[0044] The display screen module structure includes a mounting frame 1 and a display screen that are installed in coordination. The display screen includes a bottom shell, a screen body arranged on the front side of the bottom shell, and a power supply box 2 arranged on the back side of the bottom shell. It also includes the above-mentioned manual-automatic integrated unloading device.

[0045] Further, the electric drive component 3 is arranged on the display screen, and the abutting component 5 is arranged on the mounting frame 1; or, the electric drive component 3 is arranged on the mounting frame 1, and the abutting component 5 is arranged on the display screen.

[0046] Furthermore, the electric drive member 3 , the transmission assembly 4 , the ejection rod 6 and the rotating handle 7 are all arranged on the power box 2 , and the abutting member 5 is arranged on the mounting frame 1 .

[0047] From the above description, it can be seen that the electric drive component, transmission assembly, ejection rod and rotating handle are all arranged on the power box rather than directly on the bottom shell, so as to avoid the reaction force of the ejection rod causing the screen body to deform, resulting in poor display effect of the display screen.

[0048] Furthermore, a slide groove 81 is provided on the ejection rod 6 along its moving direction, and a guide member 82 adapted to the slide groove 81 is provided on the power box 2 , and the ejection rod 6 is supported on the power box 2 via the guide member 82 .

[0049] From the above description, it can be seen that a slide groove is provided on the ejection rod and a guide member is provided on the power box. The cooperation between the guide member and the slide groove can reduce the shaking of the ejection rod during movement. In addition, the ejection rod is supported by the guide member and a certain distance is created between the ejection rod and the power box. This can reduce the friction generated by the ejection rod during movement, making the movement smoother and not stuck. More importantly, the guide member can provide support for the ejection rod, thereby preventing the ejection rod from separating from the power box.

[0050] Furthermore, two slide grooves 81 are provided, and a guide member 82 is correspondingly provided in each slide groove 81 .

[0051] It can be seen from the above description that this can make the moving direction of the ejection rod more accurate, and the moving trajectory of the ejection rod is not easily deflected after the ejection rod is subjected to force.

[0052] Embodiment 1

[0053] Please refer to Figures 1 to 7 , Embodiment 1 of the present invention is: Figures 1 to 3 As shown, the display screen module structure includes a cooperatively installed installation frame 1, a display screen and a manual-automatic integrated unloading device. The display screen includes a bottom shell, a screen body arranged on the front side of the bottom shell and a power box 2 arranged on the back side of the bottom shell. Preferably, the power box 2 covers more than 1 / 5 of the area of ​​the bottom shell.

[0054] Please combine Figures 1 to 4 The manual-automatic integrated unloading device comprises an electric drive member 3, a transmission assembly 4, a resisting member 5 and an ejection rod 6, wherein the ejection rod 6 is movably arranged along its length direction, the electric drive member 3 and the ejection rod 6 are respectively connected to the transmission assembly 4, the electric drive member 3 drives the ejection rod 6 to push against the resisting member 5 through the transmission assembly 4 to increase the distance between the resisting member 5 and the electric drive member 3, and further comprises a rotating handle 7 connected to the transmission assembly 4, wherein the rotating handle 7 drives the ejection rod 6 to push against the resisting member 5 through the transmission assembly 4 to increase the distance between the resisting member 5 and the electric drive member 3. The electric drive member 3 is arranged on the display screen, and the resisting member 5 is arranged on the mounting frame 1; or the electric drive member 3 is arranged on the mounting frame 1, and the resisting member 5 is arranged on the display screen.

[0055] The power box 2 is provided with a window for exposing the rotary handle 7.

[0056] Please combine Figure 3 and Figure 4In order to ensure that the moving track of the ejection rod 6 is straight, a guide member 82 is provided on the ejection rod 6, and a guide groove matching the guide member 82 is provided on the display screen (the bottom shell or the power box 2); or, a guide groove is provided on the ejection rod 6, and a guide member 82 matching the guide groove is provided on the display screen (the bottom shell or the power box 2), and the ejection rod 6 is supported on the power box 2 through the guide member 82. In this embodiment, the ejection rod 6 has a slide groove 81 as a guide groove, and the power box 2 has a screw as a guide member 82, and one end of the screw passes through the slide groove 81, so the screw also plays the role of installing the ejection rod 6 on the power box 2 to prevent the ejection rod 6 from being separated from the power box 2. Furthermore, two slide grooves 81 are provided, and a guide member 82 is correspondingly provided in each slide groove 81.

[0057] In this embodiment, the electric drive member 3, the transmission assembly 4, the ejection rod 6 and the rotating handle 7 are all arranged on the power box 2, and the abutment member 5 is arranged on the mounting frame 1. Furthermore, a wedge block 61 is arranged at one end of the ejection rod 6 away from the transmission assembly 4, and the abutment member 5 is a roller matched with the inclined surface of the wedge block 61. Preferably, as Figure 2 and Figure 4 As shown, the outer peripheral wall of the roller has a protrusion 62 (or a groove) arranged around its rotation center axis, and the inclined surface of the wedge block 61 is provided with a groove (or a protrusion 62) that matches the protrusion 62 (or the groove), so that the wedge block 61 can be limited, thereby preventing the wedge block 61 from sliding arbitrarily on the surface of the roller.

[0058] like Figure 4 As shown, as a specific embodiment, the transmission assembly 4 includes an elastic member 41 and two rotatably arranged cams 42, and the rotation center axes of the two cams 42 are arranged to coincide with each other; the outer edges of the two cams 42 respectively abut against one end of the ejection rod 6 away from the abutting member 5, and the elastic member 41 is connected to the ejection rod 6, and the elastic member 41 is used to drive the ejection rod 6 to move toward the direction close to the cam 42; one cam 42 is connected to the electric drive member 3, and the other cam 42 is fixedly connected to the rotating handle 7. One end of the elastic member 41 is fixed to the bottom shell or the power box 2. Preferably, the elastic member 41 is a tension spring located in the guide groove, and one end of the tension spring is fixed to the guide member 82.

[0059] Please combine Figure 4 and Figure 5In this embodiment, the output end of the electric drive member 3 is connected to a rotating shaft 9, the rotating handle 7 is arranged on the rotating shaft 9 and can be rotatably arranged relative to the rotating shaft 9, the cam 42 connected to the electric drive member 3 is fixed on the rotating shaft 9, and the rotating shaft 9 can be rotatably arranged on the bottom shell. Preferably, a bearing is provided on the rotating shaft 9, and the rotating shaft 9 is installed on the bottom shell through the bearing.

[0060] like Figures 5 to 7 As shown, specifically, a turbine 91 is provided at the lower part of the rotating shaft 9, the output end of the electric drive member 3 is a worm gear matched with the turbine 91, the diameter of the middle part of the rotating shaft 9 is larger than the diameter of the upper part of the rotating shaft 9, and a locking section 92 is provided at the middle part of the rotating shaft 9. In this embodiment, the locking section 92 is a notch. A cam 42 connected to the electric drive member 3 is provided with a limiting hole 421 matched with the locking section 92, and the cam 42 is sleeved on the rotating shaft 9 through the limiting hole 421; the cam 42 connected to the rotating handle 7 is rotatably sleeved on the upper area of ​​the rotating shaft 9, and further optimized, a buckle position 422 is provided on the cam 42 connected to the rotating handle 7, and a buckle matching the buckle position 422 is provided on the rotating handle 7, and the rotating handle 7 is detachably connected to the cam 42. The advantage of this is that the rotating handle 7 can be removed when necessary to reduce the volume of the display screen.

[0061] In addition, the two cams 42 do not contact each other. After the above arrangement, the movement states of the two cams 42 are independent of each other. When the electric drive member 3 is stuck and the ejection rod 6 cannot be retracted, the user can remove the cam 42 mounted on the positioning card, and then only control the extension and retraction of the ejection rod 6 by rotating the handle 7.

[0062] It should be understood that, in the present embodiment, the two cams 42 are connected to the same rotating shaft 9 , and in other embodiments, the two cams 42 may be connected to different rotating shafts 9 , respectively.

[0063] like Figure 2 As shown, in this embodiment, there are two ejection rods 6, and the cam 42 is located between the two ejection rods 6, and the two ejection rods 6 are arranged in a colinear manner. Preferably, the length direction of the ejection rod 6 is consistent with the length direction of the mounting frame 1, so that the linear distance between the ejection rod 6 and the magnets at the four corners of the screen body is closer, and the thrust can be transmitted to the magnets at the corners of the mounting frame faster, so that the unloading device can better, more accurately, and more smoothly push out the screen body.

[0064] In this embodiment, the cam 42 includes a first semicircular segment, a rectangular segment and a second semicircular segment, the two opposite ends of the rectangular segment are respectively connected to the first semicircular segment and the second semicircular segment, and the end faces of the other two ends of the rectangular segment are both concave arc surfaces 423. When the profiles of the first and second semicircular segments are exactly the same, the rotation center axis of the cam 42 is at the center of the rectangular segment. Furthermore, the outer edge profiles of the two cams 42 are completely consistent.

[0065] Please combine Figure 1 and Figure 4 Optionally, a roller 10 is provided at one end of the ejection rod 6 that abuts against the cam 42 , and the roller 10 rolls on the peripheral wall of the cam 42 .

[0066] In this embodiment, the working principle of the manual-automatic integrated unloading device is briefly described as follows: Initially (when the display screen is connected to the installation frame), the ejection rod 6 abuts against the concave arc surface 423 of the two cams 42, and the electric drive member 3 drives the rotating shaft 9 to rotate, which will drive the cam 42 mounted on the locking section 92 of the rotating shaft 9 to rotate (during this process, the rotating handle 7 and the cam 42 connected to the rotating handle 7 do not rotate), and the first and second semicircular sections of the cam 42 abut against the ejection rod 6, so that the ejection rod 6 moves away from the transmission component 4, and then the wedge block 61 on the ejection rod 6 abuts against the roller on the installation frame, so as to achieve the purpose of separating the display screen from the installation frame. Similarly, when the user operates the rotating handle 7, similar to the above process, the rotation of the rotating handle 7 does not cause the rotation of the rotating shaft 9. The rotating shaft 9 only provides a mounting position for the cam 42 connected to the rotating handle 7.

[0067] Embodiment 2

[0068] Please refer to Figure 8 and Fig. 9 Embodiment 2 of the present invention is another structure of a transmission component 4 proposed on the basis of embodiment 1, and is different from embodiment 1 in that: the transmission component 4 includes a turntable 11 and a movable member 12, the turntable 11 is rotatably arranged on a power box (not shown) of the display screen, the movable member 12 is arranged away from the abutting member (not shown), one end of the movable member 12 is rotatably connected to the ejection rod 6, and the other end of the movable member 12 is rotatably connected to the turntable 11; the connection between the movable member 12 and the turntable 11 is eccentrically arranged with respect to the rotation center axis of the turntable 11, the electric drive member 3 and the rotating handle 7 are respectively connected to the turntable 11, and the electric drive member 3 and the rotating handle 7 can both rotate the turntable 11.

[0069] Embodiment 3

[0070] Please refer to Fig.10 and Fig.11The third embodiment of the present invention is another structure of the transmission assembly 4 proposed on the basis of the first embodiment, and is different from the first embodiment in that there is only one cam 42 in the transmission assembly 4. Specifically:

[0071] The transmission assembly 4 includes a cam 42 rotatably arranged on a power box (not shown) of the display screen, and one end of the ejection rod 6 away from the abutment member (not shown) abuts against the outer edge of the cam 42. It also includes an elastic member (not shown), one end of which is fixed to the power box of the display screen, and the other end of the elastic member is fixed to the ejection rod 6. The elastic member is used to drive the ejection rod 6 to move in a direction close to the cam 42. The electric drive member 3 and the rotating handle 7 are respectively connected to the cam 42, and the electric drive member 3 and the rotating handle 7 can both rotate the cam 42.

[0072] Embodiment 4

[0073] Please refer to Fig.12 and Fig.13 Embodiment 4 of the present invention is another structure of a transmission assembly 4 proposed on the basis of embodiment 1. The difference from embodiment 1 is that the transmission assembly 4 has two transmission forms: movable part transmission and cam transmission. Specifically, the transmission assembly 4 includes a turntable 11 rotatably arranged on a display screen power box (not shown) and a cam 42 rotatably arranged on the display screen power box, and also includes a movable member 12, the movable member 12 is arranged away from the abutting member (not shown), one end of the movable member 12 is rotatably connected to the ejection rod 6, and the other end of the movable member 12 is rotatably connected to the turntable 11; the connection between the movable member 12 and the turntable 11 is eccentrically arranged with respect to the rotation center axis of the turntable 11; the ejection rod 6 is abutted against the outer edge of the cam 42 at one end away from the abutting member, and also includes an elastic member (not shown), one end of the elastic member 41 is fixed on the power box of the display screen, and the other end of the elastic member is fixed on the ejection rod 6, and the elastic member is used to drive the ejection rod 6 to move in a direction close to the cam 42; in this embodiment, the turntable 11 is connected to the electric drive member 3, and the cam 42 is fixedly connected to the rotating handle 7; in other embodiments, the cam 42 is connected to the electric drive member 3, and the turntable 11 is fixedly connected to the rotating handle 7. Preferably, the rotation of the turntable 11 and the rotation of the cam 42 do not interfere with each other.

[0074] The output end of the electric drive component 3 is connected to a rotating shaft 9, the rotating handle 7 is arranged on the rotating shaft 9 and can be rotatably arranged relative to the rotating shaft 9, and the turntable 11 connected to the electric drive component 3 is fixed on the rotating shaft 9; similarly, in other embodiments, the cam 42 connected to the electric drive component 3 is fixed on the rotating shaft 9.

[0075] In summary, the manual-automatic integrated unloading device and display screen module structure provided by the present invention can separate the installation frame and the display screen by operating the rotating handle for the display screen module with a lower installation position, thereby reducing power consumption and being more environmentally friendly; when the turntable (or cam) fails and cannot move the ejection rod in the direction away from the transmission assembly, the user can operate the manual-automatic integrated unloading device by controlling the electric drive component or the rotating handle connected to the cam (or turntable), which is beneficial to enhancing the user experience; the concave arc surface allows the end of the ejection rod close to the transmission assembly to slide smoothly on the outer peripheral wall of the cam, avoiding the ejection rod and the cam from getting stuck; the electric drive component, the transmission assembly, the ejection rod and the rotating handle are all arranged on the power box instead of being directly arranged on the bottom shell, thereby avoiding the reaction force of the ejection rod causing the screen body to deform, resulting in a poor display effect of the display screen.

[0076] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A manual-automatic integrated unloading device, comprising an electric drive member, a transmission assembly, a support member and an ejection rod, wherein the ejection rod is movably arranged along its length direction, the electric drive member and the ejection rod are respectively connected to the transmission assembly, and the electric drive member drives the ejection rod to push against the support member through the transmission assembly to increase the distance between the support member and the electric drive member, characterized in that: It also includes a rotating handle connected to the transmission assembly, wherein the rotating handle drives the ejection rod to abut against the abutting member through the transmission assembly to increase the distance between the abutting member and the electric drive member; The transmission assembly comprises a rotatably arranged cam, one end of the ejection rod away from the abutment member abuts against the outer edge of the cam, and the electric drive member and the rotating handle are respectively connected to the cam; The cam comprises a first semicircular segment, a rectangular segment and a second semicircular segment, the two opposite ends of the rectangular segment are respectively connected to the first semicircular segment and the second semicircular segment, and the end surfaces of the other two ends of the rectangular segment are both concave arc surfaces; A roller is provided at one end of the ejection rod that abuts against the cam, and the roller rolls on the peripheral wall of the cam; The output end of the electric drive member is connected to a rotating shaft, the rotating handle is arranged on the rotating shaft and can be rotated relative to the rotating shaft, and the cam connected to the electric drive member is fixed on the rotating shaft; A turbine is provided at the lower part of the rotating shaft, and the output end of the electric drive member is a worm gear matched with the turbine. The diameter of the middle part of the rotating shaft is larger than the diameter of the upper part of the rotating shaft, and a locking section is provided at the middle part of the rotating shaft; a cam connected to the electric drive member is provided with a limiting hole matched with the locking section, and the cam is sleeved on the rotating shaft through the limiting hole; the cam connected to the rotating handle is rotatably sleeved on the upper area of ​​the rotating shaft; a buckle position is provided on the cam connected to the rotating handle, and a buckle matching the buckle position is provided on the rotating handle, and the rotating handle is detachably connected to the cam.

2. The manual and automatic integrated unloading device according to claim 1, characterized in that: It also includes an elastic member, which is connected to the ejection rod and is used to drive the ejection rod to move toward a direction close to the cam.

3. The manual and automatic integrated unloading device according to claim 1, characterized in that: The transmission assembly includes two rotatable cams, and the rotation center axes of the two cams are overlapped; the outer edges of the two cams respectively abut against one end of the ejection rod away from the abutting member; one cam is connected to the electric drive member, and the other cam is fixedly connected to the rotating handle.

4. The manual and automatic integrated unloading device according to claim 3, characterized in that: The transmission assembly further comprises an elastic member, wherein the elastic member is connected to the ejection rod and is used for driving the ejection rod to move in a direction close to the cam.

5. A display screen module structure, comprising a mounting frame and a display screen that are mounted in cooperation, wherein the display screen comprises a bottom shell, a screen body arranged on the front side of the bottom shell, and a power supply box arranged on the back side of the bottom shell, characterized in that: It also includes the manual-automatic integrated unloading device as described in any one of claims 1-4.

6. The display screen module structure according to claim 5, characterized in that: The electric drive component is arranged on the display screen, and the abutting component is arranged on the mounting frame; or the electric drive component is arranged on the mounting frame, and the abutting component is arranged on the display screen.

7. The display screen module structure according to claim 6, characterized in that: The ejection rod is provided with a slide groove along its moving direction, the power supply box is provided with a guide member matched with the slide groove, and the ejection rod is supported on the power supply box through the guide member.

Images