Television assembly and television cabinet

Abstract

The application provides a television assembly and a television cabinet. The television assembly comprises: a cabinet body, the cabinet body having a first cavity; an imaging main body for displaying a target picture, the imaging main body moving up and down along the height direction of the cabinet body; an upper cabinet, the upper cabinet having a second cavity, the second cavity being communicated with the first cavity, the upper cabinet moving up and down along the height direction of the cabinet body; and a pair of driving devices, the pair of driving devices being oppositely arranged on both sides of the imaging main body along the length direction of the cabinet body, the driving devices being used for driving the imaging main body to move up and down and driving the upper cabinet to move up and down. The technical scheme of the application can effectively solve the technical problem that the large-size television is not comfortable to watch when the cabinet body height is redundant during hiding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of television, in particular to a television assembly and a television cabinet. BACKGROUND

[0002] At present, the popular television hiding device in the market adopts a single driving structure, aiming to store the television in the cabinet body to save space and beautify the environment.

[0003] However, such devices generally have design limitations, especially for larger size televisions, such as 75-inch, 80-inch or even 100-inch models. The hiding process often requires a significant cabinet height. In the raised state of the television, the distance from the center of the screen to the ground often exceeds the comfortable viewing height range (recommended 1.2-1.3 meters), resulting in the need for constant adjustment of the user's sitting position, and long-term use can cause neck discomfort and visual fatigue. SUMMARY

[0004] The purpose of the present application is to provide a television assembly, which comprises:

[0005] a cabinet body having a first cavity inside;

[0006] an imaging body for displaying a target image, which moves up and down along the height direction of the cabinet body;

[0007] an upper cabinet having a second cavity inside, which communicates with the first cavity, and which moves up and down along the height direction of the cabinet body;

[0008] a pair of driving devices, which are oppositely arranged on both sides of the imaging body along the length direction of the cabinet body, and which are used to drive the imaging body to move up and down and to drive the upper cabinet to move up and down;

[0009] wherein, when the imaging body moves down to a limit position, the upper cabinet moves up to a limit position, and the imaging body is located in the first cavity and the second cavity;

[0010] when the imaging body moves up to a limit position, the upper cabinet moves down to the first cavity, and the imaging body is exposed outside the first cavity.

[0011] The present application provides a television assembly, which realizes the function optimization of the television at a suitable viewing height in the use state and safe storage and effective hiding in the non-use state by the ingenious design of the linkage lifting structure of the imaging body (such as a television) and the upper cabinet.

[0012] Specifically, the imaging body and the upper cabinet are relatively movable along the height direction of the cabinet body and are jointly driven by a pair of driving devices. When it is needed to watch the picture, the imaging body is lifted from the cabinet body, and at the same time, the upper cabinet is lowered to the inside of the cabinet body, so that the imaging body is completely exposed outside, instead of being partially extended. At this time, the middle visual height of the television can always be kept within the recommended range, even for large-size screens such as 75 inches, 80 inches or even 100 inches, without increasing the overall height of the cabinet body, thereby achieving the technical purpose of large screen, low position and comfortable viewing.

[0013] On the contrary, when the imaging device is not needed to be used, the imaging body is lowered, and the upper cabinet is raised to the highest position, so that the upper cabinet and the cabinet body cooperate to accommodate the imaging body, that is, the imaging body is accommodated in the first cavity and the second cavity, thereby realizing the dual effects of visual hiding and physical protection. The whole lifting and shielding process is only completed by operating the driving device, the action is coordinated, the structure is compact, and the problems of height redundancy and complicated operation of the cabinet body in the prior art for guaranteeing the television accommodation are avoided.

[0014] Therefore, through the relative linkage movement of the imaging body and the upper cabinet, the application not only improves the use comfort, adaptability and safety of the imaging device, but also breaks through the size and visual limitation of the traditional hidden television cabinet, and has good industrial application prospect.

[0015] In a possible implementation, the driving device comprises:

[0016] a driving assembly for driving the imaging body to move up and down, and the driving assembly has a driving block therein, the driving block is driven to move up and down along the height direction of the cabinet body, and the driving block is fixedly connected with the imaging body;

[0017] a fixed pulley arranged on the cabinet body and located at the upper end of the cabinet body;

[0018] a driving rope, one end of the driving rope is fixed to an extension plate of the upper cabinet, the extension plate extends towards the bottom of the cabinet body and beyond the fixed pulley;

[0019] a sliding block arranged on the cabinet body and used for sliding along the height direction of the cabinet body;

[0020] wherein the other end of the driving rope is fixed to the sliding block after the driving rope passes through the fixed pulley, and the driving block is operatively pressed on the sliding block to prevent the sliding block from moving upward.

[0021] In a possible implementation, the upper end of the upper cabinet further has an opening and a cover plate, the imaging body is used to move out of or into the opening, and the cover plate is used to open or close the opening; and the top of the cabinet body has a stopper.

[0022] The driving device further comprises:

[0023] A sliding plate is slidably connected with the upper cabinet along the height direction of the upper cabinet, and a part of the sliding plate is located below the stopper for operatively abutting against the stopper;

[0024] A driving rod is hingedly connected with the sliding plate and the cover plate at two ends thereof along the length direction of the driving rod

[0025] A guide wheel is fixed to the upper end of the upper cabinet;

[0026] A first elastic member is connected with the lower end of the upper cabinet at one end thereof along the length direction of the first elastic member;

[0027] A connecting rope is connected with the other end of the first elastic member at one end thereof, and the other end of the connecting rope is connected with the sliding plate after passing through the guide wheel;

[0028] When the upper cabinet is in the highest position, the stopper abuts against the sliding block, the first elastic member is taut, and the cover plate is closed;

[0029] When the upper cabinet slides downward, the stopper is separated from the sliding block, the first elastic member pulls the sliding block to slide upward, and the driving rod drives the cover plate to open;

[0030] When the upper cabinet moves upward, the sliding block moves upward to abut against the stopper again, the upper cabinet continues to move upward, the sliding block drives the driving rod to move downward, and the cover plate is closed.

[0031] In a possible implementation, the driving device further comprises a limiting stopper, the limiting stopper is arranged on the cabinet body, and the limiting stopper is arranged opposite to the sliding block along the height direction of the cabinet body and above the sliding block, and the limiting stopper is used for blocking the sliding block;

[0032] When the sliding block is in the lowest position, the distance between the sliding block and the limiting stopper is equal to the stroke of the upper cabinet moving upward or downward.

[0033] In a possible implementation, the driving assembly comprises a lead screw shaft, a nut and the driving block;

[0034] The lead screw shaft is arranged along the height direction of the cabinet body, the nut is sleeved outside the lead screw shaft and is threadedly connected with the lead screw shaft, and the driving block is connected with the nut.

[0035] In a possible implementation, the cabinet body comprises:

[0036] A cabinet main body, the cabinet main body has the first cavity in the cabinet main body;

[0037] a support frame arranged in the first cavity, the cabinet body being fixedly connected with the support frame;

[0038] The driving assembly and the fixed pulley are arranged on the support frame. The support frame further has a sliding rail arranged along the height direction of the cabinet body. The sliding block is slidably arranged on the sliding rail.

[0039] In a possible implementation, the upper cabinet comprises:

[0040] an upper cabinet body having the second cavity;

[0041] an upper support frame arranged in the second cavity, the upper support frame being fixedly connected with the upper cabinet body, and a part of the upper support frame extending downward and partially overlapping with the support frame, the part of the upper support frame extending downward forming the extension plate;

[0042] The upper support frame is provided with an upper frame rail arranged along the height direction of the cabinet body and extending to the extension plate. The support frame is provided with a guide block for sliding connection with the upper frame rail along the length direction of the upper frame rail.

[0043] In a possible implementation, the upper cabinet is provided with a long strip-shaped hole, the length direction of the long strip-shaped hole being the height direction of the cabinet body.

[0044] At least a part of the sliding block is arranged in the long strip-shaped hole and can slide along the length direction of the long strip-shaped hole.

[0045] In a possible implementation, the driving assembly further comprises a guide rail and a guide block. The guide rail is arranged along the height direction of the cabinet body and fixed to the cabinet body.

[0046] The guide block is slidably connected with the guide rail along the length direction of the guide rail, and the guide block is connected with the nut.

[0047] In a possible implementation, the sliding plate is provided with a waist-shaped hole, the length direction of the waist-shaped hole being the height direction of the cabinet body. A part of the driving rod is arranged in the waist-shaped hole and slides along the length direction of the waist-shaped hole.

[0048] The driving device further comprises a second elastic member, the two ends of the second elastic member along the length direction being respectively connected with the driving rod and the sliding plate.

[0049] In a possible implementation, the imaging main body comprises a display screen and a fixing frame. The display screen is fixed to the fixing frame.

[0050] The fixed frame is connected with a pair of driving devices at two ends along the length direction of the cabinet.

[0051] In one possible implementation, the fixed frame comprises:

[0052] A crossbar is connected with a pair of driving devices at two ends along the length direction of the cabinet.

[0053] A frame body is fixedly connected with the crossbar, and has at least two pairs of fixing holes on the frame body along the length direction of the cabinet, each pair of fixing holes being fixedly connected with a display screen of at least one model.

[0054] A short rod is arranged on the frame body and extends along the length direction of the cabinet, and is used to move along the height direction of the cabinet and is fixed with the frame body after moving to a preset position.

[0055] The display screen is fixed on the frame body and the short rod.

[0056] The embodiments of the present application also provide a television cabinet, which comprises:

[0057] A cabinet body has a first cavity.

[0058] An upper cabinet has a second cavity, the second cavity is communicated with the first cavity, and the upper cabinet moves up and down along the height direction of the cabinet.

[0059] A pair of driving devices are arranged on two sides of the imaging main body along the length direction of the cabinet, and are used to drive the imaging main body to move up and down and drive the upper cabinet to move up and down.

[0060] When the imaging main body moves downward to a limit position, the upper cabinet moves upward to a limit position, and the imaging main body is located in the first cavity and the second cavity.

[0061] When the imaging main body moves upward to a limit position, the upper cabinet moves downward to the first cavity, and the imaging main body is exposed outside the first cavity. BRIEF DESCRIPTION OF DRAWINGS

[0062] One or more embodiments are illustrated by way of example in the figures that form a part of this patent document. These example embodiments demonstrate, but do not limit, the scope of the embodiments. Wherever possible, the same reference numbers are used in different drawings to refer to the same or like elements so as to minimize repetition.

[0063] REFERENCE NUMERALS

[0064] 1, cabinet body; 11, cabinet main body; 111, second functional cavity; 12, support frame; 121, sliding rail; 122, guide block; 123, stop block; 2, imaging main body; 21, display screen; 22, fixing frame; 221, horizontal rod; 222, frame body; 223, short rod; 3, upper cabinet; 31, upper cabinet body; 311, first functional cavity; 32, upper support frame; 321, extension plate; 3211, connecting point; 322, upper frame guide rail; 33, long slot; 34, opening; 35, cover plate; 351, cover plate main body; 352, supporting plate; 4, driving device; 41, driving assembly; 411, screw shaft; 4111, screw motor; 412, nut; 413, driving block; 414, guide rail; 415, guide block; 42, fixed pulley; 43, driving rope; 44, sliding block; 441, hook; 45, sliding plate; 451, limiting hook; 452, sliding rod; 453, waist-shaped hole; 46, driving rod; 461, second elastic member; 47, guide wheel; 48, first elastic member; 49, connecting rope; 410, limiting stop block;

[0065] Figure 1 is a structural schematic diagram of a television assembly;

[0066] Figure 2 is a structural schematic diagram of the television assembly when closed in the embodiment of the present application;

[0067] Figure 3 is a structural schematic diagram of the television assembly when opened in the embodiment of the present application;

[0068] Figure 4 is Figure 3 is an enlarged view of a in the embodiment of the present application;

[0069] Figure 5 is a front view of the television assembly in the embodiment of the present application;

[0070] Figure 6 is Figure 5 is a sectional view of A-A in the embodiment of the present application;

[0071] Figure 7 is Figure 6 is an enlarged view of b in the embodiment of the present application;

[0072] Figure 8 is a diagram of the driving device in the embodiment of the present application;

[0073] Figure 9 is a structural schematic diagram of the driving device and the fixing frame in the embodiment of the present application;

[0074] Figure 10 is Figure 9 is an enlarged view of the left side portion in the embodiment of the present application;

[0075] Figure 11 is Figure 10 is an enlarged view of c in

[0076] Figure 12 is a front view of the driving device and the fixing frame in the embodiment of the present application, and the components such as the screw shaft are behind the driving device and the fixing frame;

[0077] Figure 13 is Figure 12 is an enlarged view of d in

[0078] Figure 14 is Figure 12 is an enlarged view of e in

[0079] Figure 15 is Figure 12 is a sectional view of B-B in

[0080] Figure 16 is Figure 15 is an enlarged view of f in DETAILED DESCRIPTION

[0081] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the various embodiments of the present application will be described in detail below with reference to the drawings. However, those skilled in the art can understand that, in the various embodiments of the present application, many technical details are presented in order to make the readers better understand the present application. However, the technical solutions claimed by the present application can be realized even without these technical details and based on various changes and modifications of the following embodiments.

[0082] In the following description, for the purpose of explaining various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the art will recognize that embodiments can be practiced without one or more of the specific details, or with certain other techniques. In other instances, well-known apparatuses, structures, and techniques associated with the present application have not been shown or described in order to avoid unnecessarily obscuring the description of the embodiments.

[0083] Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an open, non- limiting sense, as meaning "including, but not limited to".

[0084] The various embodiments of the present application will be described in detail below with reference to the drawings, so as to make the objects, features and advantages of the present application clearer. It should be understood that the embodiments shown in the drawings are not a limitation on the scope of the present application, but are only used to illustrate the essential spirit of the technical solutions of the present application.

[0085] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0086] As used in this specification and the appended claims, the singular forms "a," "an," and "the" include plural referents unless the content clearly dictates otherwise. It should be noted that the term "comprising" as used in this specification is used in the sense of "including", and thus should be interpreted to cover also "consisting of" and "consisting essentially of" in order to cover all possible implementations of the application.

[0087] In the following description, for purposes of clarity, directional terms are used, such as forward, rearward, left, right, outer, inner, outwardly, inwardly, above, below, etc. These directional terms are used for purposes of explanation only, and are not intended to be limiting.

[0088] Embodiments of the present application are described below with reference to the accompanying drawings.

[0089] The present application provides, in one aspect, a television assembly, as shown in Figure 1 The television assembly generally comprises a main cabinet 1' and a television screen 2'. The television screen 2' can be lowered into the main cabinet 1' when not in use, and raised from the main cabinet 1' to present in the user's field of view when needed. The main purpose of such a device is to switch between the hidden and displayed functions of the television, taking into account the aesthetics and practicality of the space.

[0090] However, in use, this structure has a significant deficiency: since the television screen 2' and its supporting structure must be raised as a whole above the main cabinet 1' to achieve display, the overall height of the television screen 2' will be significantly increased in the raised state. For example, when a television of 70 inches or more is used, the midline height of the screen can be much higher than the recommended viewing eye level (usually 1.2 to 1.3 meters), causing the user to look up at the screen for a long time during viewing, resulting in neck fatigue, visual discomfort, and other problems, seriously affecting the viewing experience.

[0091] To solve the above problems, the present application provides a television assembly, specifically, as shown in Figures 2 to 7As shown, the television assembly includes: a cabinet 1, an imaging body 2, an upper cabinet 3, and a pair of drive devices 4. The cabinet 1 has a first cavity; the imaging body 2 is used to display the target image and can move up and down along the height of the cabinet 1; the upper cabinet 3 has a second cavity that communicates with the first cavity and can move up and down along the height of the cabinet 1; the pair of drive devices 4 are arranged opposite each other on both sides of the imaging body 2 along the length of the cabinet 1, and are used to drive the imaging body 2 to move up and down, and also to drive the upper cabinet 3 to move up and down. Figure 2 As shown, the X direction is the height direction of cabinet 1, and the Y direction is the length direction of cabinet 1.

[0092] When the imaging subject 2 moves downward to its limit position, the upper cabinet 3 moves upward to its limit position, and the imaging subject 2 is located in the first cavity and the second cavity. At this time, the imaging subject 2 is completely housed in the upper cabinet 3 and the cabinet 1. When the imaging subject 2 moves upward to its limit position, the upper cabinet 3 moves downward to the first cavity, and the imaging subject 2 is exposed outside the first cavity.

[0093] exist Figure 1 In the structure shown, the TV screen needs to be raised entirely from inside the main cabinet to be fully visible to the user. Because the TV screen and its supporting structure rise together, the overall height is considerable. Generally, the height of the main cabinet is between 60 and 80 centimeters, while a 70-inch TV is approximately 90 centimeters tall. When both are combined, the centerline height of the raised TV screen often exceeds 1.5 meters, far exceeding the natural eye level of a seated person (usually 1.1 to 1.2 meters). This means that users need to look up at the screen for extended periods during viewing, causing excessive neck strain, eye fatigue, and severely impacting viewing comfort.

[0094] This invention employs a television assembly, such as... Figure 2 and Figure 3 As shown, the imaging subject 2 and the upper cabinet 3 are linked in reverse.

[0095] like Figure 2 As shown, when the imaging subject 2 is in the retracted state, the imaging subject 2 moves downward while the upper cabinet 3 moves upward. The two work together to completely retract the imaging subject 2 into the first cavity of the cabinet 1 and the second cavity of the upper cabinet 3. This structure not only achieves the function of hiding the imaging subject, but also improves the overall safety and appearance integrity.

[0096] like Figure 3As shown, when it is needed to use, the imaging body 2 is lifted to the display state, and the upper cabinet 3 is lowered to the inner space of the main cabinet at the same time, so that the imaging body 2 is completely exposed to the outside, and normal display is realized. Thanks to the reverse linkage structure, the display height of the imaging body 2 in the lifted state is no longer affected by the superposition of the structure of the upper cabinet 3, and the overall height during viewing is only determined by the height of the imaging body 2 itself and the cabinet 1. Therefore, even if a large-size television screen with a size of 75 inches or 100 inches is used, the middle line position of the imaging body 2 can be kept within the recommended eye height range (about 1.2 meters to 1.3 meters) by reasonably controlling the height of the upper cabinet 3 and the cabinet 1.

[0097] Through the above structural optimization, the problem of looking up caused by the television being lifted too high can be effectively avoided, and the comfort and human factors engineering adaptability during viewing are significantly improved, which is especially suitable for modern home theaters, smart homes, high-end conferences and other use scenarios with high requirements for display effect and user experience.

[0098] Further, in order to realize the synchronous movement of the imaging body 2 and the upper cabinet 3 by the same driving device 4, the present application makes the following design on the driving structure:

[0099] As shown in Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 12 and Figure 13 , the driving device 4 includes a driving assembly 41, a fixed pulley 42, a driving rope 43 and a sliding block 44. The driving assembly 41 is used to drive the imaging body 2 to move up and down along the height direction of the cabinet 1. The driving assembly 41 is provided with a driving block 413, which is fixedly connected with the imaging body 2 and moves up and down along the height direction with the driving of the driving assembly 41.

[0100] The fixed pulley 42 is arranged at the upper end of the cabinet 1, and one side of the upper cabinet 3 is provided with an extension plate 321 which extends downward from the upper cabinet 3, and the end thereof exceeds the fixed pulley 42, forming an extension structure which partially overlaps with the cabinet 1.

[0101] The sliding block 44 is arranged on the cabinet 1 and is used to slide along the height direction of the cabinet 1, and the two ends of the driving rope 43 are connected to the sliding block 44 and the extension plate 321 of the upper cabinet 3, specifically, one end of the driving rope 43 is fixed to the sliding block 44, and the other end is fixed to the extension plate 321 after passing through the fixed pulley 42, and the fixed connection point 3211 is located below the fixed pulley 42.

[0102] When the device is in the initial storage state, the driving block 413 is in the lowest position and presses on the sliding block 44, so that the sliding block 44 is also in the lowest position. At this time, the upper cabinet 3 is pulled to the highest position due to the traction of the driving rope 43, and the imaging main body 2 is stored in the internal space formed by the cabinet body 1 and the upper cabinet 3.

[0103] When the user turns on the switch and the television assembly enters the use state, the driving block 413 in the driving assembly 41 rises, and the driving block 413 drives the imaging main body 2 to move upward. At the same time, the sliding block 44 also moves upward due to the driving block 413 pressing on the sliding block 44 and the gravity of the upper cabinet 3. The upward movement of the sliding block 44 releases the pulling force on the driving rope 43, and the upper cabinet 3 starts to move downward under the action of its own gravity.

[0104] The working principle of the downward movement of the upper cabinet 3 is as follows: since the driving block 413 moves upward, the driving block 413 no longer exerts downward pressure on the sliding block 44, so that the upper cabinet 3 moves downward under the action of its own gravity. When the upper cabinet 3 stops moving downward after being placed on the cabinet body 1, the driving assembly 41 continues to drive the imaging main body 2 to move upward until the imaging main body 2 completely leaves the first cavity.

[0105] When the television assembly enters the closed state, the driving block 413 in the driving assembly 41 moves downward, and the driving block 413 drives the imaging main body 2 to move downward. When the driving block 413 moves downward by a distance, the driving block 413 presses on the sliding block 44 again and drives the sliding block 44 to move downward, and at this time the upper cabinet 3 moves upward.

[0106] The working principle of the upward movement of the upper cabinet 3 is as follows: the driving assembly 41 includes a fixed pulley 42 and a driving rope 43. The fixed pulley 42 is fixed to the upper end of the cabinet body 1, the driving rope 43 is wound around the fixed pulley 42, one end of the driving rope 43 is connected with the sliding block 44, and the other end of the driving rope 43 is connected with the extension plate 321. The connection point 3211 of the driving rope 43 with the extension plate 321 is lower than the fixed pulley 42. Therefore, when the driving block 413 drives the sliding block 44 to move downward, the upper cabinet 3 can be pulled upward through the fixed pulley 42 and the driving rope 43.

[0107] The embodiment of the present application optimizes the structure of the driving device 4, realizes the linkage movement of the imaging main body 2 and the upper cabinet 3 controlled by the same set of driving mechanism, and has the following significant technical advantages:

[0108] 1. The imaging main body 2 and the upper cabinet 3 are coordinated in movement, the structure is compact, and the control is simple

[0109] By setting the mechanical coupling relationship between the slider 44 and the driving block 413, the driving block 413 is pressed and released to the slider 44 at different stages, and the guide and traction of the driving rope 43 and the fixed pulley 42 are matched, so that one driving assembly 41 can sequentially complete the lifting action of the imaging main body 2 and the upper cabinet 3. Compared with the traditional structure of setting driving motors respectively, the number of motors and the complexity of the control system are significantly reduced, which helps to reduce the cost and improve the overall reliability of the device.

[0110] 2. "Action timing separation" is realized by the slider 44 separation mechanism to avoid interference

[0111] During the lifting of the imaging main body 2, the slider 44 and the driving block 413 are automatically separated at a certain height, so that the driving block 413 continues to rise without affecting the slider 44, and at this time the upper cabinet 3 stops moving downward, and the imaging main body 2 continues to rise to be completely exposed. The "dynamic disengagement" design realizes the time control and position interlocking of the imaging main body 2 and the upper cabinet 3, and ensures that the up and down actions do not interfere with each other.

[0112] 3. The upper cabinet 3 relies on gravity to naturally move downward and the driving rope 43 to move upward, and the structure has strong self-adaptability

[0113] The upper cabinet 3 is automatically lowered after the driving block 413 releases the slider 44, and is lowered by the driving block 413 when it is retracted, and then the upper cabinet 3 is pulled upward by the driving rope 43, forming a reverse traction return mechanism without independent driving motor. This structure skillfully uses physical gravity and rope transmission to improve the overall energy saving and mechanical stability of the device.

[0114] 4. Height controllable, comfortable viewing is improved

[0115] The structure design allows the television screen (imaging main body 2) to maintain a low midline height after being lifted, without adding the height of the upper cabinet 3, so as to control the final display height to fall within the recommended viewing line range (1.2-1.3 meters), so that even a 75-inch or 100-inch television can provide good viewing experience, effectively avoiding the problem of looking up, improving the ergonomic adaptability and user experience.

[0116] 5. Strong hiding and aesthetic, complete closed storage state

[0117] After the imaging main body 2 is retracted, the upper cabinet 3 moves upward and forms a complete and flat top appearance with the main cabinet, which not only realizes effective shielding and protection of the imaging main body 2, but also does not affect the normal use of the furniture surface, improving the integration and modernity of the overall appearance.

[0118] Further, in order to limit the upper cabinet 3, such as Figure 10As shown, the driving device 4 further includes a limiting block 410, which is arranged on the cabinet body 1 and is arranged opposite to the sliding block 44 along the height direction of the cabinet body 1 and above the sliding block 44, and is used for blocking the sliding block 44; wherein, when the sliding block 44 is at the lowest position, the distance between the sliding block 44 and the limiting block 410 is equal to the stroke of the upper cabinet 3 moving up or down.

[0119] When the sliding block 44 moves up to the preset position, the limiting block 410 and the sliding block 44 abut together to prevent the sliding block 44 from continuing to move up, at this time, the upper surface of the upper cabinet 3 is flush with the upper surface of the cabinet body 1, the driving block 413 is separated from the sliding block 44, and the driving block 413 continues to drive the imaging main body 2 to move up.

[0120] The embodiment precisely controls the movement range of the upper cabinet 3 through the design of the limiting block 410, preventing structural damage caused by excessive lifting. Meanwhile, the mechanical limiting principle is also utilized, that is, when the sliding block 44 contacts the limiting block 410, its movement is limited, thereby ensuring that the upper cabinet 3 will not exceed the predetermined movement trajectory. This design not only improves the durability of the equipment, but also makes the entire device run more stably and reliably, avoiding safety hazards caused by improper operation. In other embodiments, a bracket can be arranged on the cabinet body 1 to support the upper cabinet 3, thereby limiting the position of the upper cabinet 3 moving down.

[0121] Further, as shown in Figs. Figure 15 and Figure 16 The driving assembly 41 includes a lead screw shaft 411, a nut 412, and a driving block 413; wherein, the lead screw shaft 411 is arranged along the height direction of the cabinet body 1, the nut 412 is sleeved outside the lead screw shaft 411 and is threadedly connected with the lead screw shaft 411; the driving block 413 is connected with the nut 412. It is emphasized that, in some embodiments, the driving block 413 can be directly the nut 412 matched with the lead screw shaft 411. In order to drive the lead screw shaft 411 to rotate, the driving assembly can further include a lead screw motor 4111, and the output shaft of the lead screw motor 4111 is coaxially arranged with the lead screw shaft 411.

[0122] The embodiment adopts lead screw transmission as the core driving mechanism, ensuring the accuracy and stability of the lifting of the imaging main body 2. The screw transmission principle is utilized, that is, when the lead screw shaft 411 rotates, the nut 412 threadedly connected with it moves along the axial direction, thereby driving the driving block 413 to move up and down. This design realizes high-precision vertical movement, enabling the imaging main body 2 to remain stable during lifting, avoiding the risk of image shaking or equipment damage. In other embodiments, the driving assembly 41 can be a gas cylinder, and the driving block 413 is arranged on the piston rod of the gas cylinder.

[0123] Further, the driving assembly 41 further comprises a guide rail 414 and a guide block 415. The guide rail 414 is arranged along the height direction of the cabinet body 1 and is fixed on the cabinet body 1. The guide block 415 is slidably connected with the guide rail 414 along the length direction of the guide rail 414, and the guide block 415 is connected with the nut 412. In this embodiment, the guide rail 414 and the guide block 415 are added to further optimize the motion trajectory of the driving assembly 41, ensuring the smoothness and consistency of the lifting of the imaging main body 2. The track guiding principle is used, that is, the guide block 415 slides on the guide rail 414 to limit its movement direction, ensuring the accuracy of the vertical movement. This design not only improves the smoothness of the lifting of the imaging main body 2, but also enhances the durability of the driving assembly 41, prolonging the service life of the equipment. In other embodiments, the sliding resistance can be reduced by using self-lubricating materials or optimizing the shape of the guide block 415, solving the heating or wear problems that may occur during high-speed lifting.

[0124] Further, as shown in Figure 7 and Figure 10 , the cabinet body 1 comprises a cabinet main body 11 and a support frame 12. The cabinet main body 11 has a first cavity inside. The support frame 12 is arranged in the first cavity, and the cabinet main body 11 is fixedly connected with the support frame 12.

[0125] The driving assembly 41 and the fixed pulley 42 are arranged on the support frame 12. The support frame 12 also has a sliding rail 121 arranged along the height direction of the cabinet body 1, and the sliding block 44 is slidably arranged on the sliding rail 121. The sliding rail 121 can guide the sliding block 44.

[0126] In this embodiment, the support frame 12 and the sliding rail 121 are reasonably arranged to build a stable frame structure, providing a reliable motion platform for the imaging main body 2 and the upper cabinet 3. The frame mechanics principle is used, and the support frame 12 serves as the basis for bearing and guiding, ensuring the stability and positioning accuracy of all moving parts. This design not only enhances the structural strength of the entire device, but also simplifies the installation and maintenance process, improving the overall performance of the equipment. In some embodiments, high-strength alloy materials or composite materials can be used to manufacture the support frame 12 to enhance its carrying capacity and durability, solving the deformation or fracture problems that may occur when bearing a large weight.

[0127] Further, as shown in Figure 7 and Figure 10 , the upper cabinet 3 comprises an upper cabinet body 31 and an upper support 32. The upper cabinet body 31 has a second cavity inside. The upper support 32 is arranged in the second cavity, and the upper support 32 is fixedly connected with the upper cabinet body 31. Part of the upper support 32 extends downward and partially overlaps with the support frame 12, and the part of the upper support 32 extending downward forms an extension plate 321.

[0128] The upper support 32 is provided with an upper rack guide 322 extending to the extension plate 321 along the height direction of the cabinet body 1. The support frame 12 is provided with a guide block 122 for sliding connection with the upper rack guide 322 along the length direction of the upper rack guide 322. The cooperation of the upper support 32 and the guide block 122 realizes smooth up-down movement between the upper cabinet 3 and the support frame 12. This design ensures the stability and quietness of the upper cabinet 3 during lifting, and improves the service life of the equipment and user satisfaction.

[0129] Further, as shown in Figure 4 , the upper end of the upper cabinet 3 is also provided with an opening 34 and a cover plate 35. The imaging body 2 is used to move out or move in from the opening 34. The cover plate 35 is used to open or close the opening 34. When watching TV is needed, the cover plate 35 is opened, and the imaging body 2 moves out of the upper cabinet 3 and the cabinet body 1. When watching TV is not needed, the imaging body 2 moves into the upper cabinet 3 and the cabinet body 1 from the opening 34, and the cover plate 35 is closed.

[0130] In addition, the driving device 4 can drive the cover plate 35 to open and close in addition to being able to simultaneously drive the upper cabinet 3 to move up and down and the imaging body 2 to move up and down. The specific working principle is as follows:

[0131] As shown in Figure 7 , Figure 10 , Figure 11 , Figure 14 , the driving device 4 further comprises a sliding plate 45 and a driving rod 46. The sliding plate 45 is slidingly connected with the upper cabinet 3 along the height direction of the upper cabinet 3. Specifically, a long strip-shaped hole 33 is formed in the upper support 32 of the upper cabinet 3, and the length direction of the long strip-shaped hole 33 is the height direction of the cabinet body 1. At least a part of the sliding block 44 is arranged in the long strip-shaped hole 33 and can slide along the length direction of the long strip-shaped hole 33. Specifically, the sliding rod 452 of the sliding plate 45 is arranged in the long strip-shaped hole 33 and can slide along the length direction of the long strip-shaped hole 33.

[0132] The two ends of the driving rod 46 in the length direction are respectively hinged to the sliding plate 45 and the cover plate 35. When the sliding plate 45 moves upward, the driving rod 46 moves upward, thereby opening the cover plate 35. When the cover plate 35 moves downward, the driving rod 46 moves downward, thereby closing the cover plate 35.

[0133] Specifically, as shown in Figure 10 and Figure 11 , the cover plate 35 comprises a cover plate 35 body and a supporting plate 352. The cover plate 35 body is a long strip-shaped plate, which can be a wooden plate. The supporting plate 352 is a small metal plate, which is hinged to the upper support 32 through a hinge, thereby facilitating the opening and closing of the cover plate 35. The supporting plate 352 is also hinged to the driving rod 46, and the driving rod 46 can open or close the cover plate 35.

[0134] In order to realize the up-down movement of the sliding plate 45 to open or close the cover plate 35, the driving device 4 further comprises a first elastic member 48, a connecting rope 49 and a guide wheel 47 fixed to the upper end of the upper cabinet 3; one end of the first elastic member 48 in the length direction is connected with the lower end of the upper cabinet 3, the other end is connected with the connecting rope 49, and the other end of the connecting rope 49 is connected with the sliding plate 45 through the guide wheel 47.

[0135] In order to make the movement of the cover plate 35 related to the movement of the cabinet body 1, the top of the cabinet body 1 has a stop block 123 which can be arranged on the top of the support frame 12, and the sliding block 44 has a part located below the stop block 123 for operatively abutting against the stop block 123. Specifically, the part of the sliding block 44 located below the stop block 123 is the limiting hook 451.

[0136] When the upper cabinet 3 is in the highest position, the stop block 123 abuts against the limiting hook 451 of the sliding block 44, and the first elastic member 48 is in the tension state, so that the cover plate 35 is closed. Since the first elastic member 48 is in the tension state in the initial state, when the upper cabinet 3 slides downward and the stop block 123 separates from the sliding block 44, the first elastic member 48 in the tension state can pull the sliding block 44 to slide upward, and then drive the cover plate 35 to open through the driving rod 46.

[0137] When the upper cabinet 3 moves upward, the sliding block 44 moves upward to abut against the stop block 123 again, at this time the sliding block 44 cannot continue to move upward with the upper cabinet 3, the upper cabinet 3 continues to move upward, and the sliding block 44 can move upward and downward relative to the upper cabinet 3, so as to drive the driving rod 46 to move downward, and then close the cover plate 35.

[0138] The television assembly provided by the application is further optimized in the driving structure, in addition to being able to realize the linkage lifting of the imaging main body 2 and the upper cabinet 3, also has the function of automatically opening and closing the cover plate 35, thereby forming a set of three-linkage integrated control system, realizing the structure compact, the function efficient purpose. The embodiment of the application realizes the time sequence synchronization, the action coordination and the structure integration of the imaging main body 2, the upper cabinet 3 and the cover plate 35 through the ingenious linkage cooperation of the cover plate 35 driving structure and the upper cabinet 3, the sliding block 44, the first elastic member 48 and the driving rod 46, significantly improves the user experience and the intelligent level of the device, and is suitable for high-end home, intelligent office and other scenes.

[0139] Further, as shown in FIG. 6, the cover plate 35 is provided with a plurality of guide grooves 351, and the driving rod 46 is provided with a plurality of guide protrusions 461 corresponding to the guide grooves 351. Figure 11 And Figure 14As shown, in order to prevent the cover plate 35 from being pinched, a waist-shaped hole 453 is formed on the sliding plate 45, the length direction of the waist-shaped hole 453 is the height direction of the cabinet 1, and the driving rod 46 is partially arranged in the waist-shaped hole 453 and slides along the length direction of the waist-shaped hole 453; the driving device 4 further comprises a second elastic member 461, and the two ends of the second elastic member 461 in the length direction are respectively connected with the driving rod 46 and the sliding plate 45.

[0140] Since the driving device 4 further comprises the second elastic member 461 and the sliding plate 45 further has the waist-shaped hole 453, when the cover plate 35 is pinched, the user can force open the cover plate 35, the driving rod 46 can slide along the waist-shaped hole 453, so that the cover plate 35 can be opened. The second elastic member 461 also maintains the position of the driving rod 46, avoiding the driving rod 46 from moving randomly.

[0141] Further, as shown in Figure 5 and Figure 9 , the imaging main body 2 comprises a display screen 21 and a fixing frame 22, the display screen 21 is fixed on the fixing frame 22, and the display screen 21 can be a television display screen 21. The two ends of the fixing frame 22 in the length direction of the cabinet 1 are respectively connected with a pair of driving devices 4. In this embodiment, by fixing the display screen 21 on the specially designed fixing frame 22, the stability and safety of the display screen 21 during lifting are ensured. By using the principle of structural mechanics, the fixing frame 22 acts as a carrier of the display screen 21 and bears the entire weight of the display screen 21, and at the same time, through the connection with the driving device 4, vertical movement is realized. This design not only ensures the normal work of the display screen 21 in different states, but also simplifies the installation and maintenance process, improves the reliability and convenience of the equipment. In other embodiments, adjustable fixing frames 22 can be used to adapt to display screens 21 of different sizes, solving the problem of fixing when replacing or upgrading the equipment.

[0142] Further, the fixing frame 22 comprises a crossbar 221, the two ends of the crossbar 221 in the length direction of the cabinet 1 are respectively connected with a pair of driving devices 4; a frame body 222, the frame body 222 is fixedly connected with the crossbar 221, and along the length direction of the cabinet 1, the frame body 222 has at least two pairs of fixing holes, each pair of fixing holes is fixed with at least one type of display screen 21; a short rod 223, the short rod 223 extends along the length direction of the cabinet 1 and is arranged on the frame body 222; the short rod 223 is used to move along the height direction of the cabinet 1 and is used to be fixed with the frame body 222 after moving to a preset position; wherein the display screen 21 is fixed on the frame body 222 and the short rod 223.

[0143] The embodiment achieves compatibility for different models and sizes of display screens 21 by designing an adjustable fixing frame 22. The cooperation principle of fixing holes and screws is utilized, that is, by adjusting the position of the fixing holes, different sizes of display screens 21 can be adapted, and the movement and fixation of the short rod 223 ensure the stability of the display screen 21 during lifting. This design not only improves the versatility and flexibility of the equipment, but also simplifies the installation and debugging process, enhancing user experience. In other embodiments, an electric or manual adjustable mechanism can be used to quickly adjust the position of the fixing holes, solving the problem of tedious adjustment when replacing or upgrading the equipment.

[0144] In addition, in order to store things, as shown in the drawings, the upper cabinet 3 is also provided with a first functional cavity 311, and the cabinet body 1 is also provided with a second functional cavity 111. Figure 7

[0145] In addition, it should be emphasized that in an alternative technical solution, the driving device 4 can also be replaced by the following structure. Specifically, the driving device can include a pair of first driving mechanisms and a pair of second driving mechanisms. The pair of first driving mechanisms are oppositely arranged on both sides of the imaging main body 2 along the length direction of the cabinet body 1 and are fixedly connected with the imaging main body 2. The first driving mechanism can drive the imaging main body 2 to move up and down, and the first driving mechanism can be a pair of lead screws or a pair of air cylinders. When the first driving mechanism is a lead screw, the nut in the lead screw is fixedly connected with the fixing frame 22.

[0146] The pair of second driving mechanisms are oppositely arranged on both sides of the imaging main body 2 along the length direction of the cabinet body 1 and are fixedly connected with the upper cabinet 3. The second driving mechanism can drive the upper cabinet 3 to move up and down, and the second driving mechanism can be a pair of lead screws or a pair of air cylinders. When the second driving mechanism is a lead screw, the nut in the lead screw is fixedly connected with the upper support 32.

[0147] The working process of the television assembly is as follows:

[0148] ​When the user needs to watch TV, the operator starts the driving device 4, the driving block 413 in the driving assembly 41 starts to rise, driving the imaging main body 2 (TV screen) to move upwards. At the same time, since the driving block 413 originally presses against the slider 44 of the upper cabinet 3, when the driving block 413 moves upwards, the slider 44 is released, and the slider 44 moves upwards together with the driving block 413, so that the upper cabinet 3 synchronously moves downwards under the action of its own gravity. When the upper cabinet 3 moves to the predetermined limit position and no longer moves, the slider 44 is limited by the limit stop 410 and stops moving upwards, and the driving block 413 continues to move upwards, and finally the imaging main body 2 is completely lifted to the display position. At the same time, since the upper cabinet 3 moves downwards, the upper cabinet 3 is unhooked from the slider 44, the first elastic member 48 releases potential energy, the sliding plate 45 moves upwards under the driving of the connecting rope 49, and the cover plate 35 is automatically turned and opened by the driving of the driving rod 46, thereby leaving a channel for the lifting of the imaging main body 2.

[0149] On the contrary, when the user wants to hide the TV, the driving device 4 is started again, and the driving block 413 starts to descend, first driving the imaging main body 2 to move downwards. When the driving block 413 descends to a certain position and re-presses against the slider 44, the slider 44 is continuously driven to move downwards. Under the action of the fixed pulley 42, the slider 44 drives the upper cabinet 3 to move upwards through the driving rope 43, and finally the imaging main body 2 is stored in the internal space between the cabinet body 1 and the upper cabinet 3. At the same time, the sliding plate 45 is limited by the limit stop 123 and no longer moves upwards during the upward movement of the upper cabinet 3, and the upper cabinet 3 continues to move upwards, so that the slider 44 moves downwards relative to the upper cabinet 3. The downward movement of the slider 44 drives the cover plate 35 to turn and close through the driving of the driving rod 46, and the whole hiding process is completed. The whole process is automatic and efficient, and the three are cooperated to move, the whole process is complete, and the control is convenient.

[0150] In summary, the technical scheme of the present application realizes seamless conversion of the TV from hiding to display through ingenious mechanical linkage design, not only meets the needs of modern home for beauty and space utilization, but also fully considers the viewing experience and equipment safety, and is a very innovative and practical solution.

[0151] The embodiment of the present application also provides a TV cabinet, which comprises the remaining part after the TV assembly in the above embodiment is removed.

[0152] The preferred embodiments of the present application have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to employ aspects, features and concepts of various patents, applications and publications to provide additional embodiments.

[0153] These and other changes can be made to the embodiments in light of the above Detailed Description. The terms used in the claims have their normal ordinary meaning in the technical field unless otherwise defined. Any patents or publications referred to in this specification are incorporated by reference in their entirety, except insofar as they conflict with the present specification (including defined terms located in a heading).

[0154] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in actual applications, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A television set assembly characterized by, The television assembly comprises: a cabinet, which has a first cavity inside; an imaging body for displaying a target picture, which moves up and down along the height direction of the cabinet; an upper cabinet, which has a second cavity inside, the second cavity being communicated with the first cavity, the upper cabinet moving up and down along the height direction of the cabinet; a pair of driving devices, which are oppositely arranged on both sides of the imaging body along the length direction of the cabinet, the driving devices being used to drive the imaging body to move up and down and to drive the upper cabinet to move up and down; wherein, when the imaging body moves down to a limit position, the upper cabinet moves up to a limit position, and the imaging body is located in the first cavity and the second cavity; when the imaging body moves up to a limit position, the upper cabinet moves down to the first cavity, and the imaging body is exposed outside the first cavity; the driving device comprises: a driving assembly, which is used to drive the imaging body to move up and down, and has a driving block in the driving assembly, the driving block being driven to move up and down along the height direction of the cabinet, and the driving block being fixedly connected with the imaging body; a fixed pulley, which is arranged on the cabinet and located at the upper end of the cabinet; a driving rope, one end of which is fixed on an extension plate of the upper cabinet, the extension plate extending towards the bottom of the cabinet and beyond the fixed pulley; a sliding block, which is arranged on the cabinet and used to slide along the height direction of the cabinet; wherein, after the driving rope passes through the fixed pulley, the other end of the driving rope is fixed on the sliding block, and the driving block is operatively pressed on the sliding block to prevent the sliding block from moving up.

2. The television set assembly of claim 1, wherein, the upper end of the upper cabinet further has an opening and a cover plate, the imaging body being used to move out of or into the opening, and the cover plate being used to open or close the opening, and the top of the cabinet having a stopper; the driving device further comprises: a sliding plate, which is slidably connected with the upper cabinet along the height direction of the upper cabinet, and has a part located below the stopper and used to operatively abut against the stopper; a driving rod, both ends of which are respectively hinged with the sliding plate and the cover plate along the length direction of the driving rod; a guide wheel, which is fixed on the upper end of the upper cabinet; a first elastic member, one end of which is connected with the lower end of the upper cabinet along the length direction of the first elastic member; a connecting rope, one end of which is connected with the other end of the first elastic member, and the other end of which is connected with the sliding plate after passing through the guide wheel; wherein, when the upper cabinet is at the highest position, the stopper abuts against the sliding block, the first elastic member is taut, and the cover plate is closed; when the upper cabinet slides down, the stopper is separated from the sliding block, the first elastic member pulls the sliding block to slide up, and the cover plate is driven to open through the driving rod; when the upper cabinet moves up, the sliding block moves up to abut against the stopper again, the upper cabinet continues to move up, the sliding block drives the driving rod to move down, and the cover plate is closed.

3. The television set assembly of claim 1, wherein, The driving device further comprises a limiting block, the limiting block is arranged on the cabinet body, and the limiting block is arranged opposite to the sliding block along the height direction of the cabinet body and above the sliding block, and the limiting block is used for blocking the sliding block. The distance between the sliding block and the limiting block is equal to the stroke of the upper cabinet when the sliding block is in the lowest position.

4. The television set assembly of claim 1, wherein, The driving assembly comprises a lead screw shaft, a nut and the driving block. The lead screw shaft is arranged along the height direction of the cabinet body, the nut is sleeved outside the lead screw shaft and is threadedly connected with the lead screw shaft, and the driving block is connected with the nut.

5. The television set assembly of claim 1, wherein, The cabinet body comprises: The cabinet body has the first cavity; The support frame is arranged in the first cavity, and the cabinet body is fixedly connected with the support frame; The driving assembly and the fixed pulley are arranged on the support frame, and the support frame further has a sliding rail arranged along the height direction of the cabinet body, and the sliding block is slidably arranged on the sliding rail.

6. The television set assembly of claim 5, wherein, The upper cabinet comprises: The upper cabinet has the second cavity; The upper support is arranged in the second cavity, and the upper support is fixedly connected with the upper cabinet body, and part of the upper support extends downward and partially overlaps with the support frame, and the part of the upper support extending downward forms the extension plate; The upper support is provided with an upper frame guide rail arranged along the height direction of the cabinet body and extending to the extension plate, and the support frame is provided with a guide block used for sliding connection with the upper frame guide rail along the length direction of the upper frame guide rail.

7. The television set assembly of claim 2, wherein, The upper cabinet is provided with a long strip-shaped hole, and the length direction of the long strip-shaped hole is the height direction of the cabinet body; At least part of the sliding block is arranged in the long strip-shaped hole and can slide along the length direction of the long strip-shaped hole; The sliding plate is provided with a waist-shaped hole, the length direction of the waist-shaped hole is the height direction of the cabinet body, part of the driving rod is arranged in the waist-shaped hole and slides along the length direction of the waist-shaped hole; The driving device further comprises a second elastic member, and the two ends of the second elastic member in the length direction are respectively connected with the driving rod and the sliding plate.

8. The television set assembly of claim 4, wherein, The driving assembly further comprises a guide rail and a guide block, the guide rail is arranged along the height direction of the cabinet body and is fixed on the cabinet body; The guide block is slidably connected with the guide rail along the length direction of the guide rail, and the guide block is connected with the nut.

9. A television stand, characterized in that The television cabinet comprises: The cabinet body has the first cavity; The upper cabinet has the second cavity, the second cavity is communicated with the first cavity, and the upper cabinet moves up and down along the height direction of the cabinet body; A pair of driving devices are arranged opposite to each other along the length direction of the cabinet body and on both sides of the imaging main body, the driving devices are used for driving the imaging main body to move up and down and are used for driving the upper cabinet to move up and down. The imaging body is located in the first cavity and the second cavity when the imaging body moves downward to a limit position and the upper cabinet moves upward to a limit position; The imaging body is exposed outside the first cavity when the imaging body moves upward to a limit position and the upper cabinet moves downward to the first cavity; The driving device comprises: A driving assembly is used to drive the imaging body to move up and down, and the driving assembly has a driving block therein, the driving block is driven to move up and down along the height direction of the cabinet body, and the driving block is fixedly connected with the imaging body; A fixed pulley is arranged on the cabinet body and located at the upper end of the cabinet body; A driving rope has one end fixed on an extension plate of the upper cabinet, the extension plate extends toward the bottom of the cabinet body and beyond the fixed pulley; A sliding block is arranged on the cabinet body and used to slide along the height direction of the cabinet body; The other end of the driving rope is fixed on the sliding block after the driving rope passes through the fixed pulley, and the driving block is operatively pressed on the sliding block to prevent the sliding block from moving upward.

Images