Control box assembly and LED display device with same

Abstract

The utility model provides a control box assembly and an LED display device with the control box assembly, and the control box assembly comprises a box main body; the box cover is arranged on the box main body in an opening and closing manner, and the box cover has a covering state and a separating state; the hinge part is connected between the box body and the box cover, the hinge part is provided with a supporting rod, a hanging rod and a connecting part, the first end of the supporting rod is connected with the box body through the connecting part, the first end of the supporting rod is hinged to the connecting part, the second end of the supporting rod is hinged to the first end of the hanging rod, and the second end of the hanging rod is hinged to the box cover; and the connecting part comprises a first blocking piece, and the first blocking piece can be matched with the supporting rod in a blocking mode to limit the lower swing position of the supporting rod so as to prevent the supporting rod from making contact with the box body when the box cover is in the separated state. According to the technical scheme, the problem that a control box assembly in the prior art is inconvenient to maintain by workers can be effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of LED display, in particular to a control box component and an LED display device having the same. Background Art

[0002] With the development of science and technology, the types of LED display devices are becoming more and more diversified to meet the different needs of users. In the relevant technology, LED display devices are generally composed of multiple LED boxes. The LED box generally includes a box body and a control box assembly arranged at the rear side of the box body. The control box assembly usually includes a control box and a power supply, a control board, wires, connectors and other components arranged inside the control box to power the LED box and transmit control signals.

[0003] In this field, the staff often need to maintain the components inside the control box assembly, so they need to open the control box to expose the internal components so that the staff can maintain them. The control box in the related art can use screws to connect the cover of the control box to the box body. In this way, the staff needs to screw the screws many times, which makes the staff's operation inconvenient; or, the control box can use hinges to connect the cover of the control box to the box body. When the LED box is mounted on the stand and the staff opens the cover, the cover needs to be flipped relative to the box body, and the flipping angle is generally greater than 90°. Since the cover itself has a certain width, the staff needs to avoid a distance of at least the width of the cover when flipping the cover. When performing high-altitude maintenance, such avoidance action is difficult. Therefore, there is a problem in this field that the control box assembly makes it inconvenient for the staff to maintain. Utility Model Content

[0004] The main purpose of the utility model is to provide a control box assembly and an LED display device having the same, so as to solve the problem that the control box assembly in the related art makes maintenance inconvenient for workers.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a control box assembly is provided, including: a box body, having a accommodating cavity; a box cover, which is openably arranged on the box body, and the box cover has a covered state covered on the box body and a separated state separated from the box body; a hinge part, connected between the box body and the box cover, the hinge part has a support rod, a hanging rod and a connecting part, the first end of the support rod is connected to the box body through the connecting part, the first end of the support rod is hinged to the connecting part, the second end of the support rod is hinged to the first end of the hanging rod, and the second end of the hanging rod is hinged to the box cover, so that the box cover can switch between the covered state and the separated state, the connecting part includes a first stopper, the first stopper can cooperate with the support rod stopper to limit the swing position of the support rod, thereby preventing the support rod from contacting the box body when the box cover is in the separated state.

[0006] Furthermore, when the box cover is in a separated state, the hinge point of the support rod and the hanging rod is located outside the box body.

[0007] Furthermore, the hinge point between the connecting part and the supporting rod is the first hinge point, the hinge point between the supporting rod and the hanging rod is the second hinge point, and the hinge point between the hanging rod and the box cover is the third hinge point, wherein the second hinge point is located above the line connecting the first hinge point and the third hinge point.

[0008] Furthermore, a second stopper that can cooperate with the suspension rod stopper is provided on the second end of the support rod to limit the movement of the suspension rod to a position where the first hinge point, the second hinge point and the third hinge point are located on the same straight line; or, a third stopper that can cooperate with the support rod stopper is provided on the first end of the suspension rod to limit the movement of the suspension rod to a position where the first hinge point, the second hinge point and the third hinge point are located on the same straight line.

[0009] Furthermore, the support rod includes a first rod body and a second rod body arranged at an angle, and when the box cover is in a separated state, the connection point of the first rod body and the second rod body is located above the line connecting the first hinge point and the second hinge point; and / or, the hanging rod is a straight rod structure.

[0010] Furthermore, the hinge point between the hanging rod and the box cover is located at the upper part of the box cover.

[0011] Furthermore, the box body includes a back plate and a surrounding plate connected to the outer periphery of the back plate. When the box cover is in a closed state, the box cover blocks the open end of the surrounding plate away from the back plate, and the connecting portion is connected to the back plate.

[0012] Furthermore, the enclosure includes a top plate and a bottom plate, the top plate includes a first plate body and a first hook, the first plate body is arranged between the back plate and the first hook, the bottom plate includes a second plate body and a first magnetic component, the second plate body is arranged between the back plate and the first magnetic component, the box cover includes a cover body, a second hook arranged at the upper end of the cover body and a second magnetic component arranged at the lower end of the cover body, when the box cover is in a closed state, the first hook and the second hook are snap-fitted, and the first magnetic component and the second magnetic component are magnetically fitted.

[0013] Furthermore, there are multiple hinge parts, and the multiple hinge parts are arranged at intervals in the extension direction of the box body; and / or the support rod, the hanging rod and the connecting part are all plate-like structures.

[0014] According to another aspect of the present invention, an LED display device is provided, comprising a control box assembly, wherein the control box assembly is the above-mentioned control box assembly.

[0015] By applying the technical solution of the utility model, the box cover has a closed state and a separated state. When the box cover is in the closed state, the box cover is closed on the box body, and the box cover and the box body jointly protect the components in the accommodating cavity. When the box cover is in the separated state, the box cover is separated from the box body and the components in the accommodating cavity are exposed to facilitate maintenance by staff. The box cover and the hanging rod are hinged, the hanging rod and the supporting rod are hinged, the supporting rod and the connecting part are hinged, and the connecting part and the box body are connected, so that the box cover and the box body are connected, and the box cover can be switched between the closed state and the separated state through the hinge part. In addition, when the box cover is in a separated state, the first stopper cooperates with the support rod stopper to keep the support rod in a suitable position, so that the support rod will not continue to swing down and collide with the box body, and the whole formed by the box cover and the suspension rod will also naturally droop under the action of its own gravity through the hinge point between the support rod and the suspension rod. By setting the hinge part, when the box cover switches from the closed state to the separated state, the box cover can always remain in a vertical state or remain in a state that only forms a small angle with the vertical state and moves outward, and the total distance moved outward is small, and the difficulty of the staff to avoid it is small. Compared with the solution of connecting the box cover and the box body with screws or hinges, the hinge part in the present application will not produce additional scattered parts, and the staff does not need to move a long distance to avoid the box cover, thereby facilitating the maintenance operation of the staff. The staff only needs to operate the box cover to easily complete the switching of the state of the box cover. Therefore, the technical solution of the present application can effectively solve the problem that the control box assembly in the related art makes it inconvenient for the staff to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of a control box assembly according to the utility model is shown;

[0018] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the hinge portion of the control box assembly;

[0019] Figure 3 Shows Figure 1 A schematic diagram of the three-dimensional structure of the hinge portion of the control box assembly from another angle;

[0020] Figure 4 Shows Figure 1 A side cross-sectional schematic diagram of a control box assembly, wherein the box cover is in a separated state;

[0021] Figure 5 Shows Figure 1 A side cross-sectional schematic diagram of a control box assembly, wherein the box cover is in a closed state;

[0022] Figure 6 A side cross-sectional schematic diagram showing a hinge portion of a control box assembly in a stuck state is shown, wherein a first hinge point, a second hinge point and a third hinge point are on the same straight line.

[0023] The above drawings include the following reference numerals:

[0024] L1, the line connecting the first hinge point and the third hinge point; L2, the line connecting the first hinge point and the second hinge point;

[0025] 10. Box body; 11. Back plate; 12. Enclosure; 121. Top plate; 1211. First plate body; 1212. First hook; 122. Bottom plate; 1221. Second plate body; 1222. First magnetic attraction member; 13. Wire box;

[0026] 20. Box cover; 21. Cover body; 22. Second hook; 23. Second magnetic attraction member;

[0027] 30. hinge part; 31. support rod; 311. second stopper; 312. first rod body; 313. second rod body; 32. suspension rod; 33. connection part; 331. first stopper; 332. first plate body; 333. second plate body; 3331. reinforcement part; 3332. extension part;

[0028] 41. First hinge point; 42. Second hinge point; 43. Third hinge point. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] like Figures 1 to 5 As shown, the present application provides a control box assembly, and an embodiment of the control box assembly of the present application includes: a box body 10, a box cover 20, and a hinge part 30; the box body 10 has a receiving cavity; the box cover 20 is openably arranged on the box body 10, and the box cover 20 has a covered state covered on the box body 10 and a separated state separated from the box body 10; the hinge part 30 is connected between the box body 10 and the box cover 20, and the hinge part 30 has a support rod 31, a hanging rod 32 and a connecting part 33, and the first end of the support rod 31 is connected to the box body 10. The connecting portion 33 is connected to the box body 10, the first end of the support rod 31 is hinged to the connecting portion 33, the second end of the support rod 31 is hinged to the first end of the hanging rod 32, and the second end of the hanging rod 32 is hinged to the box cover 20, so that the box cover 20 can be switched between the closed state and the separated state. The connecting portion 33 includes a first stopper 331, and the first stopper 331 can cooperate with the support rod 31 stopper to limit the lower swing position of the support rod 31, thereby preventing the support rod 31 from contacting the box body 10 when the box cover 20 is in the separated state.

[0031] By applying the technical solution of this embodiment, the box cover 20 has a closed state and a separated state. When the box cover 20 is in the closed state, the box cover 20 covers the box body 10, and the box cover 20 and the box body 10 jointly protect the components in the accommodating cavity. When the box cover 20 is in the separated state, the box cover 20 is separated from the box body 10 and the components in the accommodating cavity are exposed to facilitate maintenance by the staff; the box cover 20 and the hanging rod 32 are hinged, the hanging rod 32 and the supporting rod 31 are hinged, the supporting rod 31 and the connecting part 33 are hinged, and the connecting part 33 and the box body 10 are connected, so that the box cover 20 and the box body 10 are connected, and the box cover 20 can be switched between the closed state and the separated state through the hinge part 30. In addition, when the box cover 20 is in the separated state, the first stopper 331 cooperates with the support rod 31 to keep the support rod 31 in a suitable position, so that the support rod 31 will not continue to swing down and collide with the box body 10, and the whole formed by the box cover 20 and the suspension rod 32 will also naturally droop under the action of its own gravity through the hinge point between the support rod 31 and the suspension rod 32. By setting the hinge part 30, when the box cover 20 switches from the closed state to the separated state, the box cover 20 can always remain in a vertical state or move outward at a state with only a small angle to the vertical state and the total distance moved outward is small, and the difficulty of the staff to avoid it is small. Compared with the solution of connecting the box cover 20 and the box body 10 with screws or hinges, the hinge part 30 in this embodiment will not produce additional scattered parts, and the staff does not need to move a long distance to avoid the box cover 20, thereby facilitating the maintenance operation of the staff. The staff only needs to operate the box cover 20 to easily complete the switching of the state of the box cover 20. Therefore, the technical solution of this embodiment can effectively solve the problem in the related art that the control box assembly makes maintenance inconvenient for workers.

[0032] It should be noted that the above-mentioned "the box cover 20 is separated from the box body 10" means that the box cover 20 and the box body 10 are not connected by any other structure except the hinge part 30; the "separated state" means that after the box cover 20 and the box body 10 are separated, each component is in a stable final state. The first stopper 331 is a baffle plate arranged at the lower end of the extension part 3332 and extending laterally toward one side of the support rod 31. When the box cover 20 is in the separated state, the lower side wall of the support rod 31 abuts against the first stopper 331 to limit the support rod 31 from continuing to swing downward.

[0033] Specifically, in this embodiment, the control box assembly is installed on the rear side of the high altitude LED display device along the lateral direction.

[0034] like Figure 4As shown, when the box cover 20 is in the separated state, the hinge point of the support rod 31 and the hanging rod 32 is located outside the box body 10. In this way, the whole formed by the box cover 20 and the hanging rod 32 will naturally sag under the action of its own gravity through the hinge point between the support rod 31 and the hanging rod 32. When the whole formed by the box cover 20 and the hanging rod 32 sags naturally, it will not contact the box body 10, thereby preventing the box cover 20 and the hanging rod 32 from colliding with the box body 10.

[0035] like Figure 4 As shown, the hinge point between the connecting portion 33 and the support rod 31 is the first hinge point 41, the hinge point between the support rod 31 and the hanging rod 32 is the second hinge point 42, and the hinge point between the hanging rod 32 and the box cover 20 is the third hinge point 43, wherein the second hinge point 42 is located above the line connecting the first hinge point 41 and the third hinge point 43. In this embodiment, the line L1 connecting the first hinge point 41 and the third hinge point 43 divides the paper into two parts, and the second hinge point 42 is located at the top. Specifically, as shown in FIG. Figure 4 As shown, the line L1 connecting the first hinge point 41 and the third hinge point 43 divides the paper into the upper half (i.e. Figure 4 The second hinge point 42 is located at Figure 4 The upper right part in the figure. Whether the box cover 20 is in the closed state, the separated state or in a state between the closed state and the separated state, the second hinge point 42 is located above the line L1 connecting the first hinge point 41 and the third hinge point 43, so as to ensure that the box cover 20 can smoothly switch between the closed state and the separated state without the hinge part 30 getting stuck. Specifically, the hinge part 30 gets stuck when the first hinge point 41, the second hinge point 42 and the third hinge point 43 are in the same straight line or the second hinge point 42 is located below the line connecting the first hinge point 41 and the third hinge point 43. The box cover 20 cannot be closed on the box body 10. At this time, the staff must manually move the second hinge point 42 to make the hinge part 30 out of the stuck state before continuing to close the box cover 20. However, this will cause inconvenience to the staff.

[0036] Specifically, in this embodiment, Figures 2 to 4 As shown, the second end of the support rod 31 is provided with a second stopper 311 capable of cooperating with the stopper of the suspension rod 32 to limit the movement of the suspension rod 32 to a position where the first hinge point 41, the second hinge point 42 and the third hinge point 43 are located on the same straight line. The second stopper 311 is a baffle plate provided on the second end of the support rod 31, and the upper side wall of the suspension rod 32 can cooperate with the baffle plate stopper to limit the movement of the suspension rod 32. Specifically, as shown in FIG. Figure 4As shown, if the circular motion of the suspension rod 32 is viewed with the second hinge point 42 as the center, the second stopper 311 limits the counterclockwise rotation of the suspension rod 32 to prevent the first hinge point 41, the second hinge point 42 and the third hinge point 43 from being located on the same straight line, thereby preventing the hinge part 30 from getting stuck, so that the staff can easily retract the hinge part 30 by operating the box cover 20.

[0037] In addition, in another feasible implementation, a stopper may also be provided on the suspension rod. Specifically, a third stopper capable of cooperating with a support rod stopper is provided on the first end of the suspension rod to limit the movement of the suspension rod to a position where the first hinge point, the second hinge point, and the third hinge point are located on the same straight line. The third stopper is a baffle plate provided on the first end of the suspension rod, and the upper side wall of the support rod can cooperate with the baffle plate stopper to limit the movement of the suspension rod, thereby preventing the first hinge point, the second hinge point, and the third hinge point from being located on the same straight line, thereby preventing the hinge portion from being stuck.

[0038] like Figures 1 to 5 As shown, the suspension rod 32 is a straight rod structure, and the support rod 31 includes a first rod body 312 and a second rod body 313 arranged at an angle. When the box cover 20 is in a separated state, the connection point of the first rod body 312 and the second rod body 313 is located above the line connecting the first hinge point 41 and the second hinge point 42. Specifically, as Figure 4 As shown, the line L2 connecting the first hinge point 41 and the second hinge point 42 divides the paper into the upper half (i.e. Figure 4 The connection point between the first rod body 312 and the second rod body 313 is located at Figure 4 The upper right part of the box body 10. A wire box 13 is arranged on the bottom plate 122 (mentioned later) of the box body 10 along the extension direction of the box body 10. When the box cover 20 is in a separated state, the first rod 312 and the second rod 313 arranged at an angle can avoid interference with the wire box 13. The first rod 312 and the second rod 313 are arranged at a first angle, and the degree of the first angle is between 125° and 145°. Preferably, the degree of the first angle is 128°, 130°, 138°, or 142°.

[0039] like Figure 1 , Figure 4 as well as Figure 5As shown, the hinge point between the hanging rod 32 and the box cover 20 is located at the upper part of the box cover 20. Specifically, the hinge point between the hanging rod 32 and the box cover 20 (that is, the third hinge point 43) is located above the middle part of the box cover 20. When the box cover 20 is in the separated state, the box cover 20 can be kept in a vertical state or a nearly vertical state under the action of its own gravity. The box cover 20 will not flip outwards because the structure above the third hinge point 43 is heavy and the structure below is light, that is, it will not turn along the box cover 20. Figure 4 The clockwise and reverse flipping in the machine can avoid inconvenience to the maintenance operations of the staff.

[0040] like Figure 1 , Figure 4 as well as Figure 5 As shown, the box body 10 includes a back plate 11 and a surrounding plate 12 connected to the outer periphery of the back plate 11 . When the box cover 20 is in a closed state, the box cover 20 blocks the open end of the surrounding plate 12 away from the back plate 11 , and the connecting portion 33 is connected to the back plate 11 . The enclosure 12 includes a top plate 121 and a bottom plate 122, the top plate 121 includes a first plate body 1211 and a first hook 1212, the first plate body 1211 is arranged between the back plate 11 and the first hook 1212, the bottom plate 122 includes a second plate body 1221 and a first magnetic component 1222, the second plate body 1221 is arranged between the back plate 11 and the first magnetic component 1222, the box cover 20 includes a cover body 21, a second hook 22 arranged at the upper end of the cover body 21, and a second magnetic component 23 arranged at the lower end of the cover body 21, when the box cover 20 is in a closed state, the first hook 1212 and the second hook 22 are snap-fitted, and the first magnetic component 1222 and the second magnetic component 23 are magnetically fitted.

[0041] The first hook 1212 and the second hook 22 are engaged and matched, and the first magnetic member 1222 and the second magnetic member 23 are magnetically engaged and matched, so that the cover body 21 can be stably connected to the enclosure 12. Specifically, the first hook 1212 includes an upper hook section extending upward and a first connecting section arranged between the upper hook section and the first plate body 1211, and the second hook 22 includes a lower hook section extending downward and a second connecting section arranged between the lower hook section and the cover body 21, and the upper hook section and the lower hook section can be engaged and matched. When the staff needs to switch the box cover 20 from the closed state to the separated state, first disengage the first magnetic member 1222 and the second magnetic member 23 from the magnetic engagement, and then move the cover body 21 upward by about 3 mm, so that the upper hook section and the lower hook section disengage the snap-fit ​​engagement, and then continue to move the cover body 21; when the staff needs to switch the box cover 20 from the separated state to the closed state, when the box cover 20 is located close to the closed position on the box body 10, first move the box cover 20 upward by about 5-10 mm, then move the box cover 20 downward and snap-fit ​​the upper hook section and the lower hook section, and then engage the first magnetic member 1222 and the second magnetic member 23 by magnetic engagement.

[0042] There are multiple hinge parts 30, and the multiple hinge parts 30 are arranged at intervals in the extending direction of the box body 10. Specifically, Figure 1 As shown, in this embodiment, the box body 10 is a rectangular structure, and the extension direction of the box body 10 is the extension direction of the long side of the rectangular structure. There are two hinge parts 30, which are respectively arranged at both ends of the back plate 11, so as to ensure that the hinge parts 30 can stably connect the box body 10 and the box cover 20.

[0043] In addition, if Figures 1 to 5 As shown, the support rod 31, the suspension rod 32 and the connection part 33 are all plate-like structures. Specifically, the connection part 33 includes a first plate body 332 and a second plate body 333 arranged vertically, the first plate body 332 is connected to the back plate 11, the second plate body 333 is hinged to the support rod 31, and the second plate body 333 includes a reinforcing part 3331 and an extending part 3332, the reinforcing part 3331 enhances the stability of the connection between the second plate body 333 and the first plate body 332, and the extending part 3332 extends in a direction away from the back plate 11. The support rod 31 and the suspension rod 32 are both plate-like structures, so that the thickness of the hinge part 30 can be relatively thin.

[0044] In addition, the control box assembly further includes a connecting member, which is disposed between the suspension rod 32 and the cover 21, the second end of the suspension rod 32 is hinged to the connecting member, and the cover 21 is connected to the connecting member. Specifically, the connecting member includes a third plate and a fourth plate disposed vertically, the third plate is connected to the cover 21, and the fourth plate is hinged to the second end of the suspension rod 32.

[0045] Specifically, in this embodiment, the extension portion 3332 and the first end of the first rod body 312 are hingedly connected by rivets to form a first hinge point 41, the second end of the second rod body 313 and the first end of the suspension rod 32 are hingedly connected by rivets to form a second hinge point 42, and the second end of the suspension rod 32 and the connecting piece are hingedly connected by rivets to form a third hinge point 43.

[0046] The hinge portion 30 in this embodiment has no specific trajectory during use, and the box cover 20 has no specific direction during opening and closing.

[0047] Specifically, when the hinge portion 30 is located at Figure 6 When the first hinge point, the second hinge point and the third hinge point are located on the same straight line, the staff will apply the following force to the box cover 20 if they want to close the box cover 20. Figure 6The force toward the left or the force toward the upper left will drive the hanging rod 32 to rotate counterclockwise around the second hinge point 42. At this time, the force applied by the hanging rod 32 to the second hinge point 42 is toward the lower left. However, if you want to close the box cover 20, you need to rotate the support rod 31 counterclockwise around the first hinge point 41, that is, you need to apply an upper right force to the second hinge point 42. However, the actual force applied to the second hinge point 42 is opposite to the required force. Therefore, the support rod 31 cannot retract, and thus the box cover 20 cannot be closed.

[0048] The present application also provides an LED display device, the LED display device of the present application includes a control box assembly, wherein the control box assembly is the above-mentioned control box assembly. The above-mentioned control box assembly can effectively solve the problem that the control box assembly in the related art makes it inconvenient for the staff to maintain, and the LED display device with the above-mentioned control box assembly also has the above-mentioned advantages.

[0049] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0050] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A control box assembly, characterized in that: include: A box body (10) having a receiving cavity; A box cover (20) is arranged on the box body (10) in an openable and closable manner, and the box cover (20) has a closed state where it covers the box body (10) and a separated state where it is separated from the box body (10); A hinge part (30) is connected between the box body (10) and the box cover (20), and the hinge part (30) comprises a support rod (31), a hanging rod (32) and a connecting part (33). The first end of the support rod (31) is connected to the box body (10) through the connecting part (33), the first end of the support rod (31) is hinged to the connecting part (33), the second end of the support rod (31) is hinged to the first end of the hanging rod (32), and the The second end of the hanging rod (32) is hinged to the box cover (20) so that the box cover (20) can be switched between the closed state and the separated state. The connecting portion (33) includes a first stopper (331), which can cooperate with the support rod (31) to limit the downward swing position of the support rod (31), thereby preventing the support rod (31) from contacting the box body (10) when the box cover (20) is in the separated state.

2. The control box assembly according to claim 1, characterized in that: When the box cover (20) is in the separated state, the hinge point of the support rod (31) and the hanging rod (32) is located outside the box body (10).

3. The control box assembly according to claim 1, characterized in that: The hinge point between the connecting portion (33) and the supporting rod (31) is a first hinge point (41), the hinge point between the supporting rod (31) and the hanging rod (32) is a second hinge point (42), and the hinge point between the hanging rod (32) and the box cover (20) is a third hinge point (43), wherein the second hinge point (42) is located above the line connecting the first hinge point (41) and the third hinge point (43).

4. The control box assembly according to claim 3, characterized in that: A second stopper (311) capable of cooperating with the suspension rod (32) to limit the suspension rod (32) from moving to a position where the first hinge point (41), the second hinge point (42) and the third hinge point (43) are located on the same straight line; or, A third stopper capable of cooperating with the support rod stopper is disposed on the first end of the suspension rod to limit the movement of the suspension rod to a position where the first hinge point, the second hinge point and the third hinge point are located on the same straight line.

5. The control box assembly according to claim 3 or 4, characterized in that: The support rod (31) comprises a first rod body (312) and a second rod body (313) which are arranged at an angle, and when the box cover (20) is in the separated state, the connection point between the first rod body (312) and the second rod body (313) is located above the line connecting the first hinge point (41) and the second hinge point (42); and / or, The hanging rod (32) is a straight rod structure.

6. The control box assembly according to any one of claims 1 to 4, characterized in that: The hinge point between the hanging rod (32) and the box cover (20) is located at the upper part of the box cover (20).

7. The control box assembly according to any one of claims 1 to 4, characterized in that: The box body (10) comprises a back plate (11) and a surrounding plate (12) connected to the outer periphery of the back plate (11); when the box cover (20) is in the closed state, the box cover (20) blocks the open end of the surrounding plate (12) away from the back plate (11), and the connecting portion (33) is connected to the back plate (11).

8. The control box assembly according to claim 7, characterized in that: The enclosure plate (12) comprises a top plate (121) and a bottom plate (122); the top plate (121) comprises a first plate body (1211) and a first hook (1212); the first plate body (1211) is arranged between the back plate (11) and the first hook (1212); the bottom plate (122) comprises a second plate body (1221) and a first magnetic attraction member (1222); the second plate body (1221) is arranged on the back plate (11). The box cover (20) comprises a cover body (21), a second hook (22) arranged at the upper end of the cover body (21), and a second magnetic member (23) arranged at the lower end of the cover body (21); when the box cover (20) is in the closed state, the first hook (1212) and the second hook (22) are engaged with each other, and the first magnetic member (1222) and the second magnetic member (23) are engaged with each other by magnetic attraction.

9. The control box assembly according to any one of claims 1 to 4, characterized in that: There are a plurality of hinge parts (30), and the plurality of hinge parts (30) are arranged at intervals in the extending direction of the box body (10); and / or, The support rod (31), the hanging rod (32) and the connecting portion (33) are all plate-shaped structures.

10. An LED display device, comprising a control box assembly, characterized in that: The control box assembly is the control box assembly according to any one of claims 1 to 9.

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