Loudspeaker box lifting screen

Abstract

The utility model discloses a loudspeaker box lifting screen, which comprises a base arranged in a loudspeaker box body, a telescopic mechanism arranged on the base, and a display screen arranged on the telescopic mechanism. The telescopic mechanism comprises a hydraulic telescopic rod with one end connected with the display screen, a pressure liquid sealing assembly arranged on the base and connected to the end of the hydraulic telescopic rod in a sleeving mode, and a locking structure arranged in the pressure liquid sealing assembly and used for locking the hydraulic telescopic rod at intervals. The folding table has the advantages of being convenient to store, flexible to use and capable of saving production cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to sound box equipment field, especially a sound box lifting screen. BACKGROUND

[0002] At present, the outdoor sound box on the market is mainly composed of a sound box body, a display and a pull rod. Since the display occupies a relatively large space of the overall sound box, it is very inconvenient to transport and use when used outdoors. There is a Chinese utility model patent with the patent number 202220469165.3 and the patent name of a sound box with a telescopic display screen. The sound box is mainly composed of a sound box body, a display screen stored in the sound box body and a telescopic assembly arranged between the sound box body and the display screen. The telescopic assembly includes a driving member, a gear set, a screw rod and a moving frame, and the display screen is installed on the moving frame. When in use, the driving member drives the gear set to rotate, and then drives the screw rod and the moving frame to lift as a whole, so that the display screen can be lifted on the moving frame, and the display screen can also be stored in the sound box body. However, the telescopic assembly with the lifting function has a complex structure, slow assembly efficiency and high production cost when leaving the factory. SUMMARY

[0003] In view of the above problems, the utility model aims to provide a sound box lifting screen which is convenient to store, flexible to use and saves production cost.

[0004] To achieve the above-mentioned purpose, the utility model provides a sound box lifting screen, which comprises a base arranged in a sound box body, a telescopic mechanism arranged on the base, and a display screen arranged on the telescopic mechanism. The telescopic mechanism comprises a hydraulic telescopic rod connected to one end of the display screen, a liquid pressure sealing assembly arranged on the base and sleeved on the end of the hydraulic telescopic rod, and a locking structure arranged in the liquid pressure sealing sleeve and locking the hydraulic telescopic rod. In the initial state, the height of the hydraulic telescopic rod and the liquid pressure sealing assembly is the height of the display screen after being extended from the sound box body. After the locking structure locks the hydraulic telescopic rod, the height of the hydraulic telescopic rod and the liquid pressure sealing assembly is the height of the display screen after being pressed into the sound box body under the external force.

[0005] In some embodiments, the liquid pressure sealing assembly comprises a sleeve arranged on the end of the hydraulic telescopic rod, a limiting block arranged on the hydraulic telescopic rod in the sleeve, a first sealing member and a second sealing member arranged in sequence and at intervals on the hydraulic telescopic rod below the limiting block, and hydraulic oil filled in a sealing space formed between the first sealing member, the second sealing member and the sleeve.

[0006] In some embodiments, the locking structure includes a guide seat at the bottom of the sleeve for guiding the insertion of the end of the hydraulic telescopic rod; a movable ring rotating about the guide hydraulic telescopic rod on the hydraulic telescopic rod inside the guide seat; limiting plates restricting the up-and-down movement of the movable ring on the hydraulic telescopic rod above and below the movable ring; multiple triangular protrusions evenly spaced on the surface of the limiting plates; an annular helical rack meshing with the triangular protrusions on the bottom of the guide seat corresponding to the triangular protrusions; and multiple 7-shaped locking blocks evenly spaced on the inner wall of the tube seat corresponding to the inclined side of the annular helical rack; the 7-shaped locking blocks are offset above the teeth of the annular helical rack.

[0007] In some embodiments, four triangular protrusions are provided; four 7-shaped blocks are provided.

[0008] In some implementations, the display screen rotates 360 degrees around a hydraulic telescopic rod as a base.

[0009] The advantages of this invention are convenient storage, flexible use, and cost savings in production. The improved telescopic mechanism utilizes the self-resetting structure of the hydraulic rod and locks the movable ring with a triangular protrusion on the hydraulic telescopic rod. The locking is guided by a design where a 7-shaped locking block and the toothed inclined surface of a ring-shaped rack are misaligned. Specifically, pressing and releasing the hydraulic rod once locks the 7-shaped locking block once, at which point the display screen is hidden inside the speaker body; pressing and releasing the hydraulic rod again disengages the 7-shaped locking block, and the hydraulic rod automatically resets to its initial state, at which point the display screen rises above the speaker body. Furthermore, after the hydraulic telescopic rod rises, the display screen can rotate 360 ​​degrees and fold forward or backward. This achieves convenient storage and flexible use. Moreover, since the telescopic mechanism is pre-packaged during production and assembly, only the base and display screen need to be connected separately, thus saving production costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of this utility model;

[0011] Figure 2 for Figure 1 The diagram shows the structure of the hydraulic telescopic rod.

[0012] Figure 3 This is an exploded structural diagram of the present invention.

[0013] Figure 4 for Figure 3 The diagram shows the structure of the first state of the locking structure.

[0014] Figure 5 for Figure 3 The diagram shows the structure of the second state of the locking structure.

[0015] Figure 6 For Figure 3 structure diagram of the locking structure state three shown in the figure;

[0016] Figure 7 For Figure 3 structure diagram of the locking structure state four shown in the figure;

[0017] Figure 8 The utility model is structure schematic diagram of using state. DETAILED DESCRIPTION

[0018] The utility model will be further explained in detail in connection with the drawings.

[0019] As Figures 1-8As shown, a sound box lifting screen comprises a base 02 provided in a sound box body 01, a telescopic mechanism 03 provided on the base 02, and a display screen 04 provided on the telescopic mechanism 03. The telescopic mechanism 03 comprises a hydraulic telescopic rod 31 connected to the display screen 04 at one end, a liquid pressure sealing assembly 32 provided on the base 02 and sleeved on the end of the hydraulic telescopic rod 31, and a locking structure 33 provided in the liquid pressure sealing sleeve and locking the hydraulic telescopic rod 31. In the initial state, the height of the hydraulic telescopic rod 31 and the liquid pressure sealing assembly 32 is the height of the display screen 04 after being extended from the sound box body 01. After the locking structure 33 locks the hydraulic telescopic rod 31, the height of the hydraulic telescopic rod 31 and the liquid pressure sealing assembly 32 is the height of the display screen 04 after being pressed into the sound box body 01 under external force. The liquid pressure sealing assembly 32 comprises a sleeve 321 provided on the end of the hydraulic telescopic rod 31, a limiting block 322 provided on the hydraulic telescopic rod 31 in the sleeve 321, a first sealing member 323 and a second sealing member 324 provided on the hydraulic telescopic rod 31 below the limiting block 322, and hydraulic oil filled in the sealing space formed between the first sealing member 323, the second sealing member 324 and the sleeve 321. The locking structure 33 comprises a conduit seat 331 provided on the bottom of the sleeve 321 and guiding the end of the hydraulic telescopic rod 31 to be inserted, a movable ring 332 provided on the hydraulic telescopic rod 31 in the conduit seat 331 and rotating around the hydraulic telescopic rod 31 as the axis, a limiting sheet 333 provided on the hydraulic telescopic rod 31 above and below the movable ring 332 and limiting the movable ring 332 to move up and down, a plurality of triangular protrusions 334 provided on the surface of the limiting sheet 333 at equal intervals, an annular bevel gear 335 provided on the bottom of the conduit seat 331 corresponding to the triangular protrusions 334 and engaging with the triangular protrusions 334, and a plurality of 7-shaped clamping blocks 336 provided on the inner wall of the conduit seat corresponding to the bevel edge of the annular bevel gear 335 at equal intervals. The 7-shaped clamping blocks 336 are staggered above the tooth trace of the annular bevel gear 335. The triangular protrusions 334 are provided with four pieces. The 7-shaped clamping blocks 336 are provided with four pieces. The display screen 04 rotates 360 degrees around the hydraulic telescopic rod 31 as the base point.

[0020] Working principle

[0021] As Figures 3-7As shown, when the user presses the top edge of the display screen 04 with external force, the hydraulic telescopic rod 31 goes down, the hydraulic oil is extruded, the end of the hydraulic telescopic rod 31 continues to insert into the catheter seat 331, then the triangular block 334 uses the guiding action of the inclined edge of the annular helical rack 335 to rotate the movable ring 332 with the hydraulic telescopic rod 31 as the axis, then the hydraulic telescopic rod 31 continues to go down to the position where the triangular block 334 meshes with the annular helical rack 335. Then, the force on the top edge of the display screen 04 is released, the hydraulic telescopic rod 31 vertically rises under the action of the hydraulic oil reset, and is clamped on the 7-shaped clamping block 336. At this time, the display screen 04 is hidden in the sound box body 01. When it is needed to lift the display screen 04 upward, the user presses the top edge of the display screen 04 with external force, the hydraulic telescopic rod 31 goes down by a small segment, the hydraulic oil is extruded, and the hydraulic telescopic rod 31 continues to go down to the position where the triangular block 334 meshes with the annular helical rack 335 under the guidance of the contact of the triangular block 334 and the inclined edge of the annular helical rack 335. At this time, the triangular block 334 is separated from the 7-shaped clamping block 336, the force on the top edge of the display screen 04 is released, and the hydraulic telescopic rod 31 vertically rises under the action of the complete reset of the hydraulic oil until the state that the hydraulic oil is not under pressure. At this time, the display screen 04 rises from the sound box body 01.

[0022] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A sound box lifting screen, characterized in that, The display screen is arranged on the telescopic mechanism of the base arranged in the sound box body; The telescopic mechanism comprises a hydraulic telescopic rod connected with the display screen at one end, a liquid pressure sealing assembly arranged on the base and sleeved on the end of the hydraulic telescopic rod, and a locking structure arranged in the liquid pressure sealing sleeve and locking the hydraulic telescopic rod; The height of the hydraulic telescopic rod and the liquid pressure sealing assembly is the height of the display screen after being stretched out of the sound box body in the initial state of the liquid pressure sealing assembly; The height of the hydraulic telescopic rod and the liquid pressure sealing assembly is the height of the display screen after being pressed into the sound box body under the external force after the locking structure locks the hydraulic telescopic rod.

2. The sound box lifting screen according to claim 1, characterized in that, The liquid pressure sealing assembly comprises a sleeve arranged on the end of the hydraulic telescopic rod, a limiting block arranged on the hydraulic telescopic rod in the sleeve, a first sealing element and a second sealing element arranged on the hydraulic telescopic rod below the limiting block in sequence and at intervals, and hydraulic oil filled in the sealing space formed between the first sealing element, the second sealing element and the sleeve.

3. The sound box lifting screen according to claim 2, characterized in that, The locking structure comprises a guide pipe seat arranged on the bottom of the sleeve and guiding the end of the hydraulic telescopic rod to be inserted, a movable ring arranged on the hydraulic telescopic rod in the guide pipe seat and rotating around the hydraulic telescopic rod as the shaft, a limiting sheet arranged on the hydraulic telescopic rod above and below the movable ring and limiting the movement of the movable ring, a plurality of triangular protrusions arranged on the surface of the limiting sheet at equal intervals, an annular bevel gear arranged on the bottom of the guide pipe seat corresponding to the triangular protrusions and engaging with the triangular protrusions, and a plurality of 7-shaped clamping blocks arranged on the inner wall of the pipe seat corresponding to the bevel edge of the annular bevel gear at equal intervals; the 7-shaped clamping blocks are arranged above the tooth trace of the annular bevel gear.

4. The sound box lifting screen according to claim 3, characterized in that, The triangular protrusions are arranged in four pieces; the 7-shaped clamping blocks are arranged in four pieces.

5. The sound box lifting screen according to claim 1, characterized in that, The display screen rotates 360 degrees with the hydraulic telescopic rod as the base point.

Images