CN209887495U

CN209887495U - Front maintenance tool for display screen

Info

Publication number: CN209887495U
Application number: CN201920265153.7U
Authority: CN
Inventors: 周洪贵
Original assignee: Shenzhen Absen Optoelectronic Co Ltd; Huizhou Absen Optoelectronic Co Ltd
Current assignee: Shenzhen Absen Optoelectronic Co Ltd; Huizhou Absen Optoelectronic Co Ltd
Priority date: 2019-02-28
Filing date: 2019-02-28
Publication date: 2020-01-03
Anticipated expiration: 2029-02-28
Also published as: WO2020172993A1

Abstract

The utility model belongs to the technical field of air suction tools, in particular to a front maintenance tool for a display screen, which comprises an installation shell, an air draft assembly, a sucker, a plurality of pressing blocks and a plurality of driving pieces, wherein the installation shell is provided with an installation cavity with an opening, the sucker is installed in the installation cavity and seals the opening, the air draft assembly is installed in the installation shell, an air draft opening of the air draft assembly is hermetically connected with the sucker, a plurality of grooves are arranged on the adsorption surface of the sucker, and each groove extends out of the side part of the sucker; each compact heap is all installed in the installation cavity, and each compact heap all butt on the back of sucking disc and respectively with each recess just to setting up, each driving piece all installs on the installation shell, and the drive end of each driving piece just sets up each compact heap and is used for promoting each compact heap respectively in order to extrude the back of each recess. The utility model discloses a display screen front maintenance instrument can suitably extrude the recess and adjust thereby vacuum adsorption power reaches the front maintenance demand that satisfies different interval display screens.

Description

Front maintenance tool for display screen

Technical Field

The utility model belongs to the technical field of the instrument is inhaled to the gas, especially, relate to a display screen front maintenance instrument.

Background

At present, with the development of small-spacing display screens, the small-spacing display screens gradually occupy larger market share, and meanwhile, the front maintenance tool of the display screens mainly based on the small spacing becomes the mainstream front maintenance tool of the display screens. Existing front maintenance tools are often classified as magnetic type tools, vacuum type tools, or electric ejection type tools.

However, the magnetic tools generally need to add an iron plate on a module or a lamp panel of the display screen as a magnetic part, so that the weight of the whole display screen is undoubtedly increased, the handheld end of the magnetic tools generally adopts a permanent magnet, the weight of the magnetic tools is heavier, impurities such as iron pieces or dust can be adsorbed due to the magnetic force, inconvenience is brought to the use and the placement of the magnetic tools, and the magnetic tools suddenly impact the lamp panel or the lamp bead on the module due to the magnetic force when approaching the lamp panel or the module of the display screen, so that the lamp bead can be possibly necrotized; the electric ejection tool is arranged on the box body, so that the cost investment of the whole display screen is large, the electric ejection tool occupies a large space, and the weight of the whole display screen is greatly increased; vacuum type instrument has adopted motor convulsions to produce certain vacuum and has resisted the lamp plate or the module to the dynamics of magnetism of box. Because the vacuum tool has no problem that the magnetic tool is inconvenient to use, and an iron plate on the back of the module can be saved to reduce the cost and the weight, the vacuum tool is widely applied to a front maintenance tool of a small-distance display screen. But the vacuum adsorption power of current vacuum class instrument can't adjust according to the display screen of different intervals to the lamp pearl of booth apart from display screen is less at lamp plate or the fixed strength on module, if the vacuum class instrument that adopts great vacuum adsorption power adsorbs at lamp plate or module, and the lamp pearl drops easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a display screen front maintenance instrument, the vacuum adsorption power that aims at solving the front maintenance instrument of the vacuum class among the prior art can't carry out the technical problem adjusted according to different interval display screens.

In order to achieve the above object, the utility model adopts the following technical scheme: a display screen front maintenance instrument which characterized in that: the air suction device comprises a mounting shell, an air suction assembly, a sucker, a plurality of pressing blocks and a plurality of driving pieces, wherein the mounting shell is provided with a mounting cavity with an opening, the sucker is mounted in the mounting cavity and seals the opening, the air suction assembly is mounted in the mounting shell, an air suction opening of the air suction assembly is hermetically connected with the sucker, a plurality of grooves are formed in the suction surface of the sucker, and each groove extends out of the side part of the sucker; the pressing blocks are arranged in the installation cavity, the pressing blocks abut against the back face of the sucker and are arranged opposite to the grooves respectively, the driving pieces are arranged on the installation shell, and the driving ends of the driving pieces are arranged opposite to the pressing blocks and are used for pushing the pressing blocks to extrude the back faces of the grooves respectively.

Furthermore, the front maintenance tool for the display screen further comprises a fixing sheet, the fixing sheet is installed in the installation cavity, and a plurality of fixing holes are formed in the fixing sheet; each pressing block is provided with a fixing column, a fixing screw and a spring, the fixing column penetrates through the fixing hole, the spring is sleeved on the fixing column, the fixing screw is fixed at the end of the fixing column, and two ends of the spring are respectively abutted to the fixing screw and the fixing sheet.

Further, the middle part of sucking disc is equipped with the cavity, the edge of cavity is followed the plane at the opening place of installation cavity extends and is formed with and is used for laminating absorptive laminating lateral wall mutually with the lamp plate surface of display screen or module surface, the adsorption plane set up in on the laminating lateral wall, each the recess all is located on the laminating lateral wall and with the cavity communicates with each other.

Furthermore, a thickening bulge is arranged on the back surface of the laminating side wall, the end surface of the thickening bulge abuts against the fixing piece, and the positions of the thickening bulge and the grooves corresponding to each groove are provided with avoidance notches for accommodating the pressing blocks.

Furthermore, the bottom surface of the installation cavity is provided with grid reinforcing ribs, the fixed sheet is installed on the grid reinforcing ribs, and the side face of the fixed sheet abuts against the end faces of the grid reinforcing ribs.

Further, the driving piece comprises an adjusting screw, a threaded hole is formed in the installation shell, the adjusting screw penetrates through the threaded hole, and the end portion of the adjusting screw is opposite to the pressing block.

Furthermore, the mounting shell comprises a sucker part, a mounting part, a handheld part and a base part, the mounting cavity is arranged on the sucker part, and the mounting part, the handheld part and the base part are all positioned on the side surface of the sucker part, which is opposite to the opening of the mounting cavity; the upper end of handheld portion with the installation department links to each other, the lateral part of installation department with inhale the dish portion and link to each other, convulsions subassembly is located in the installation department, the lower extreme of handheld portion with the base portion links to each other.

Furthermore, the upper end of the side part of the handheld part close to the sucker part is provided with a switch key used for controlling the opening or closing of the air draft assembly, the sucker part is provided with a blocking plate, and the blocking plate faces the handheld part, extends and abuts against the end part of the blocking plate on the switch key when the switch key is pressed down.

Further, the installation shell still includes connecting portion, the upper end of connecting portion with the installation department links to each other, the lower extreme of connecting portion with the base portion links to each other, connecting portion are located the lateral part of handheld portion, the side of connecting portion is equipped with the joint groove, it is protruding that the side of inhaling the dish portion is equipped with the joint, the protruding joint of joint in the joint inslot.

Furthermore, the mounting shell further comprises a fixing block, the inner side face of the fixing block is buckled on the outer wall face of the connecting portion, two ends of the fixing block extend out of two opposite side faces of the connecting portion to form two fixing sections, and the two fixing sections are connected with the sucking disc portion through fastening screws respectively.

The utility model has the advantages that: the utility model discloses a display screen front maintenance tool, when using, after hugging closely the adsorption plane of sucking disc on the surface of the lamp plate or the module of display screen, start convulsions subassembly and the inside of sucking disc forms certain vacuum, thereby produce the adsorption affinity, and then dismantle the lamp plate or the module of display screen from the box, because the utility model discloses a plurality of recesses have been seted up on the adsorption plane of the sucking disc of display screen front maintenance tool, when the sucking disc adsorbs on the surface of the lamp plate or the module of display screen, the opening of recess is sealed by the surface of the lamp plate or the module of display screen, and the recess extends the lateral part of sucking disc simultaneously, this just makes the recess and the surface of the lamp plate or the module of display screen form the air current channel that can communicate the inside of sucking disc with the outside of sucking disc, then, through starting the driving piece, the drive the compact heap removes, thereby extrude the recess on the sucking disc, the cross section area of the airflow channel is adjusted, and then the vacuum adsorption force in the sucker is adjusted; the utility model discloses a display screen front maintenance instrument when using on the lamp plate of different interval display screens or module, thereby can suitably adjust the cross-sectional area of airflow channel and adjust the front maintenance demand that vacuum adsorption power dealt with different interval display screens, simultaneously at the dismantlement in-process of lamp plate or module, lamp plate or module obtain suitable vacuum adsorption power can avoid droing and damaging of the lamp pearl on lamp plate or the module.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a viewing angle of a display screen front maintenance tool according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

Fig. 4 is a schematic structural diagram of another viewing angle of the display screen front maintenance tool according to the embodiment of the present invention.

Fig. 5 is an exploded view of a display screen front maintenance tool according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

10-mounting shell 11-mounting cavity 12-threaded hole

13-sucker part 14-mounting part 15-handheld part

16-base part 17-connecting part 18-fixing block

20-air draft assembly 30-suction cup 31-groove

32-cavity 33-attached side wall 34-thickened bump

35-avoidance notch 41-pressing block 42-fixing column

43-fixing screw 44-spring 50-driving piece

60-fixing piece 61-fixing hole 62-avoiding hole

63-hollow hole 71-switch key 72-blocking plate

111-grid reinforcing rib 131-clamping protrusion 171-clamping groove

172-fixing groove 181-fixing section.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-5 are exemplary and intended to be used to illustrate the invention, but should not be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 to 5, an embodiment of the present invention provides a front maintenance tool for a display screen, including an installation shell 10, an air draft assembly 20, a suction cup 30, a plurality of pressing blocks 41 and a plurality of driving members 50, wherein an installation cavity 11 with an opening is formed in the installation shell 10, the suction cup 30 is installed in the installation cavity 11 and seals the opening, the air draft assembly 20 is installed in the installation shell 10, an air draft opening of the air draft assembly 20 is hermetically connected to the suction cup 30, a plurality of grooves 31 are formed in an adsorption surface of the suction cup 30, and each groove 31 extends out of a side portion of the suction cup 30; each of the pressing blocks 41 is installed in the installation cavity 11, each of the pressing blocks 41 abuts against the back surface of the suction cup 30 and is arranged opposite to each of the grooves 31, each of the driving members 50 is installed on the installation shell 10, and the driving end of each of the driving members 50 is arranged opposite to each of the pressing blocks 41 and is used for pushing each of the pressing blocks 41 to extrude the back surface of each of the grooves 31.

Specifically, in the maintenance tool before display screen according to the embodiment of the present invention, when in use, after the suction surface of the suction cup 30 is tightly attached to the surface of the lamp panel or the module of the display screen, the air draft assembly 20 is started and the inside of the suction cup 30 forms a certain vacuum degree, so as to generate a suction force, and further detach the lamp panel or the module of the display screen from the box body, because the suction cup 30 of the maintenance tool before display screen according to the embodiment of the present invention is provided with a plurality of grooves 31 on the suction surface, when the suction cup 30 is sucked on the surface of the lamp panel or the module of the display screen, the openings of the grooves 31 are sealed by the surface of the lamp panel or the module of the display screen, and the grooves 31 extend out of the side portion of the suction cup 30, so that the grooves 31 and the surface of the lamp panel or the module of the display screen form an airflow channel capable of communicating the inside of the suction cup 30, the driving piece 50 drives the pressing block 41 to move, so that the groove 31 on the sucking disc 30 is extruded, the cross section area of an airflow channel is adjusted, and the vacuum adsorption force in the sucking disc 30 is adjusted; the utility model discloses display screen front maintenance instrument when the lamp plate or the module of different interval display screens use, thereby can suitably adjust airflow channel's cross-sectional area and adjust the front maintenance demand that vacuum adsorption power dealt with different interval display screens, simultaneously at the dismantlement in-process of lamp plate or module, lamp plate or module obtain suitable vacuum adsorption power can avoid droing and damaging of the lamp pearl on lamp plate or the module.

Further, the utility model discloses the air current channel that recess 31 of display screen front maintenance instrument formed when using also can avoid sucking disc 30's inside to appear the phenomenon of complete vacuum to avoid the motor the phenomenon of power-off protection to appear.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 5, the front maintenance tool for a display screen further includes a fixing plate 60, the fixing plate 60 is installed in the installation cavity 11, and a plurality of fixing holes 61 are formed on the fixing plate 60; each of the pressing blocks 41 is provided with a fixing post 42, a fixing screw 43 and a spring 44, the fixing post 42 passes through the fixing hole 61, the spring 44 is sleeved on the fixing post 42, the fixing screw 43 is fixed on the end of the fixing post 42, and two ends of the spring 44 respectively abut against the fixing screw 43 and the fixing piece 60. Specifically, in the front maintenance tool for the display screen according to the embodiment of the present invention, after the fixing column 42 of the pressing block 41 passes through the fixing hole 61 on the fixing plate 60, the spring 44 is sleeved on the fixing column 42, the fixing screw 43 locks the spring 44 on the fixing column 42, two ends of the spring 44 abut against the fixing screw 43 and the fixing plate 60 respectively, so as to fix the pressing block 41 on the fixing plate 60, thereby preventing the pressing block 41 from moving in the mounting cavity 11, and thereby ensuring the accuracy of the relative position between the pressing block 41 and the groove 31; after the driving end of the driving element 50 pushes the pressing block 41 out of the groove 31 of the suction cup 30, the pressing block 41 automatically resets under the action of the elastic force of the spring 44 of the pressing block 41 in the retraction process of the driving end of the driving element 50, so that the moving operation of the pressing block 41 is simpler and more convenient; and under the effect of the elastic force of spring 44, fixed column 42 on compact heap 41 also can not remove in fixed orifices 61, thereby avoid the utility model discloses compact heap 41 back-and-forth movement in fixed orifices 61 when the display screen front maintenance instrument uses avoids the maloperation of compact heap 41, thereby ensures the utility model discloses the reliability of the adjustment of the vacuum adsorption power of display screen front maintenance instrument.

Further, all be equipped with fixed column 42 on the both ends of compact heap 41, two fixed columns 42 all fix on stationary blade 60 through set screw 43 and spring 44, and the both ends of compact heap 41 all receive the limiting displacement of fixed column 42 and spring 44, and this makes compact heap 41's removal more stable, thereby makes the utility model discloses maintenance tool's before the display screen adjustment of vacuum adsorption power is more reliable and more stable.

In another embodiment of the utility model, referring to fig. 1, fig. 2 and fig. 5, the middle part of sucking disc 30 is equipped with cavity 32, cavity 32's edge is followed the plane at the opening place of installation cavity 11 extends and is formed with and is used for laminating absorptive laminating lateral wall 33 with the lamp plate surface or the module surface of display screen mutually, the adsorption plane set up in on the laminating lateral wall 33, each recess 31 all is located on the laminating lateral wall 33 and with cavity 32 communicates with each other. Specifically, in the front maintenance tool for the display screen according to the embodiment of the present invention, the through hole communicating with the air suction opening of the air suction assembly 20 is arranged in the cavity 32 in the middle of the suction cup 30, and the air in the cavity 32 is evacuated by the air suction assembly 20, so that a vacuum degree is formed in the cavity 32, and further, an adsorption force is generated, and thus, the lamp panel or the module of the display screen is detached; and the edge of cavity 32 extends and forms along the plane at opening place and is used for laminating absorptive laminating lateral wall 33 mutually with the lamp plate surface of display screen or module surface, and the edge of cavity 32 is equipped with planar laminating lateral wall 33, and laminating lateral wall 33 can laminate closely on the lamp plate of display screen or the module on the surface to it is easier to make the interior formation vacuum of cavity 32.

Further, the positions corresponding to the two opposite side portions of the attaching side wall 33 are respectively provided with a groove 31, so that the two opposite sides of the cavity 32 are respectively provided with an air flow channel, the distribution of the vacuum degree in the cavity 32 is more uniform, and the vacuum adsorption acting force applied to the lamp panel or the module is more uniform.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 5, a thickening protrusion 34 is disposed on the back surface of the attaching sidewall 33, the end surface of the thickening protrusion 34 abuts against the fixing plate 60, and the positions of the thickening protrusion 34 and the corresponding grooves 31 are provided with an avoiding notch 35 for accommodating the pressing block 41. Specifically, in the front maintenance tool for the display screen according to the embodiment of the present invention, the thickening protrusion 34 is disposed on the back surface of the attaching side wall 33, on one hand, the strength of the attaching side wall 33 can be enhanced, and when a vacuum degree is prevented from being formed in the cavity 32, the attaching side wall 33 is adsorbed into the cavity 32 under a vacuum adsorption force, so that the suction cup 30 cannot be stably adsorbed on a lamp panel or a module of the display screen, and even the adsorption failure of the suction cup 30 is caused; simultaneously, the terminal surface butt of the protruding 34 of thickening is on stationary blade 60, so the utility model discloses the maintenance instrument before the display screen is when using, the staff can compress tightly sucking disc 30 on the lamp plate of display screen or the module on the surface, at this moment the protruding 34 of thickening and laminating lateral wall 33 are by the centre gripping between the lamp plate of stationary blade 60 and display screen or module together, further avoid laminating lateral wall 33 to be adsorbed in cavity 32, ensure the absorptive stability of sucking disc 30. The positions of the thickening protrusions 34 corresponding to the grooves 31 are provided with avoidance notches 35 for accommodating the corresponding pressing blocks 41, and the avoidance notches 35 can provide mounting space for the installation of the pressing blocks 41, so that the structure of the front maintenance tool for the whole display screen is more compact; on the other hand can reduce the material of recess 31 department and pile up for the effect that compact heap 41 extrusion recess 31 warp required is littleer, and the removal of compact heap 41 is more laborsaving, so that the adjustment of whole display screen front maintenance instrument's vacuum adsorption power.

In another embodiment of the present invention, referring to fig. 1, 2 and 5, a grid rib 111 is disposed on a bottom surface of the mounting cavity 11, and the fixing plate 60 is mounted on the grid rib 111, and a side surface of the fixing plate 60 abuts against an end surface of the grid rib 111. Specifically, the utility model discloses maintenance tool before the display screen, setting up of net strengthening rib 111 makes the many places position of stationary blade 60 all receive the support of strengthening the chamber to make stationary blade 60's fixed more stable, simultaneously, also make stationary blade 60 more reliable and more stable to laminating lateral wall 33's clamping effect.

Further, the middle part of the fixing sheet 60 is provided with a hollow hole 63 for avoiding the concave cavity 32, and meanwhile, the fixing sheet 60 is fixed on the grid reinforcing rib 111 through a screw.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 5, the driving member 50 includes an adjusting screw, the mounting shell 10 is provided with a threaded hole 12, the adjusting screw passes through the threaded hole 12, and the end of the adjusting screw is opposite to the pressing block 41. Specifically, the utility model discloses display screen front maintenance instrument, through rotating adjusting screw, adjusting screw rotates in screw hole 12, and adjusting screw's tip moves towards compact heap 41 to promote compact heap 41 to extrude recess 31 on the sucking disc 30, directly utilize the cooperation between the external screw thread of adjusting screw and the internal thread of screw hole 12, thereby realize adjusting screw's concertina movement, and then promote compact heap 41 to move; the structure is simple by adopting the matching structure of the adjusting screw and the threaded hole 12; and only need to rotate the adjusting screw, its operation is also more convenient, simultaneously through the number of turns of adjusting screw, can ensure accurately that the adjusting screw promotes the stroke that compact heap 41 moved, and then makes the adjustment of the vacuum adsorption power of whole display screen front maintenance instrument more accurate.

Further, an avoiding hole 62 for the end of the adjusting screw to penetrate is further formed in the fixing piece 60, and the end of the adjusting screw directly abuts against the pressing block 41 after penetrating through the avoiding hole 62, so that the pressing block 41 is pushed to move, and the groove 31 in the suction cup 30 is further squeezed.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 4, the mounting shell 10 includes a tray sucking portion 13, a mounting portion 14, a handheld portion 15 and a base portion 16, the mounting cavity 11 is disposed on the tray sucking portion 13, and the mounting portion 14, the handheld portion 15 and the base portion 16 are all located on a side of the tray sucking portion 13 facing away from an opening of the mounting cavity 11; the upper end of handheld portion 15 with installation department 14 links to each other, the lateral part of installation department 14 with inhale dish portion 13 and link to each other, convulsions subassembly 20 is located in the installation department 14, the lower extreme of handheld portion 15 with base portion 16 links to each other. Specifically, sucking disc portion 13 mainly provides the installation base member for sucking disc 30, and installation department 14 mainly is the installation base member of convulsions subassembly 20, and handheld portion 15 mainly used staff grips for the use of whole display screen front maintenance instrument is more convenient simple, and base portion 16 mainly used supplies placing of whole display screen front maintenance instrument simultaneously, makes placing of whole display screen front maintenance instrument more stable.

In another embodiment of the present invention, referring to fig. 1, fig. 2 and fig. 3, a switch button 71 for controlling the opening or closing of the air draft assembly 20 is disposed at the upper end of the side portion of the holding portion 15 close to the tray suction portion 13, a blocking plate 72 is disposed on the tray suction portion 13, the blocking plate 72 extends towards the holding portion 15 and abuts against the switch button 71 at the end of the blocking plate 72 when the switch button 71 is pressed. Specifically, when the worker holds the handheld portion 15, the fingers of the worker directly contact the switch key 71 to turn on the air draft assembly 20, so that the whole display screen front maintenance tool starts to perform adsorption operation, and the operation of turning on the whole display screen front maintenance tool is more convenient; meanwhile, after the switch key 71 is completely pressed down, the upper part of the switch key 71 is directly abutted against the end part of the barrier plate 72, so that when a worker uses the maintenance tool before the display screen, the worker does not need to press the switch key 71 all the time, and the use of the whole maintenance tool before the display screen is more comfortable and convenient; when the whole front maintenance tool for the display screen needs to be closed, the switch key 71 needs to be slightly pushed, and the switch key 71 rebounds, so that the whole front maintenance tool for the display screen is closed.

Further, switch button 71 is in the forefinger department of handheld portion 15, and when the staff held the utility model discloses the maintenance tool before the display screen and use the forefinger to press switch button 71 inwards, start air draft mechanism and carry out the suction work, then stop air draft mechanism and carry out the suction work when loosening switch button 71.

In another embodiment of the present invention, referring to fig. 1, fig. 3 and fig. 5, the mounting shell 10 further includes a connecting portion 17, the upper end of the connecting portion 17 is connected to the mounting portion 14, the lower end of the connecting portion 17 is connected to the base portion 16, the connecting portion 17 is located the lateral portion of the handheld portion 15, the side of the connecting portion 17 is provided with a clamping groove 171, the side of the suction disc portion 13 is provided with a clamping protrusion 131, the clamping protrusion 131 is clamped in the clamping groove 171. Specifically, the connecting portion 17 connects the mounting portion 14 and the base portion 16, so that the connection between the mounting portion 14, the base portion 16 and the handheld portion 15 is more stable and reliable, meanwhile, the connecting portion 17 and the suction cup portion 13 are connected in a snap-fit manner through the snap-fit protrusion 131 and the snap-fit groove 171, so that the mounting and dismounting between the suction cup portion 13 and the connecting portion 17, the mounting portion 14, the base portion 16 and the handheld portion 15 are simpler, and the assembly and the maintenance of the whole display screen front maintenance tool are facilitated.

In another embodiment of the present invention, referring to fig. 1, fig. 3 and fig. 5, the mounting case 10 further includes a fixing block 18, the inner side surface of the fixing block 18 is buckled on the outer wall surface of the connecting portion 17, and the two ends of the fixing block 18 extend out of the two opposite side surfaces of the connecting portion 17 and form two fixing sections 181, two of the fixing sections 181 are respectively connected to the suction disc portion 13 through fastening screws. Specifically, the utility model discloses maintenance tool before display screen when the equipment, earlier with connecting portion 17 lock on sucking disc portion 13, establish the medial surface buckle of fixed block 18 on connecting portion 17's outer wall again, with two canned paragraph 181 of the protruding outer wall that stretches out connecting portion 17 of fixed block 18 again, fix two canned paragraph 181 on sucking disc portion 13 through fastening screw respectively again, make the fixed more reliable between connecting portion 17 and the sucking disc portion 13 through fixed block 18 and fastening screw's fixed.

Further, be equipped with fixed slot 172 on the outer wall of connecting portion 17, in fixed section 181 card goes into fixed slot 172 to avoid moving up and down of connecting portion 17, make the fixed more reliable and stable between connecting portion 17 and the sucking disc portion 13.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A display screen front maintenance instrument which characterized in that: the air suction device comprises a mounting shell, an air suction assembly, a sucker, a plurality of pressing blocks and a plurality of driving pieces, wherein the mounting shell is provided with a mounting cavity with an opening, the sucker is mounted in the mounting cavity and seals the opening, the air suction assembly is mounted in the mounting shell, an air suction opening of the air suction assembly is hermetically connected with the sucker, a plurality of grooves are formed in the suction surface of the sucker, and each groove extends out of the side part of the sucker;

the pressing blocks are arranged in the installation cavity, the pressing blocks abut against the back face of the sucker and are arranged opposite to the grooves respectively, the driving pieces are arranged on the installation shell, and the driving ends of the driving pieces are arranged opposite to the pressing blocks and are used for pushing the pressing blocks to extrude the back faces of the grooves respectively.

2. The display screen front maintenance tool of claim 1, wherein: the front maintenance tool for the display screen further comprises a fixing sheet, the fixing sheet is installed in the installation cavity, and a plurality of fixing holes are formed in the fixing sheet;

each pressing block is provided with a fixing column, a fixing screw and a spring, the fixing column penetrates through the fixing hole, the spring is sleeved on the fixing column, the fixing screw is fixed at the end of the fixing column, and two ends of the spring are respectively abutted to the fixing screw and the fixing sheet.

3. The front maintenance tool of claim 2, wherein: the middle part of sucking disc is equipped with the cavity, the edge of cavity is followed the plane at the opening place of installation cavity extends and is formed with and is used for laminating absorptive laminating lateral wall mutually with the lamp plate surface or the module surface of display screen, the adsorption plane set up in on the laminating lateral wall, each the recess all is located on the laminating lateral wall and with the cavity communicates with each other.

4. The front maintenance tool of claim 3, wherein: the back of the laminating side wall is provided with a thickening bulge, the end face of the thickening bulge is abutted to the fixing piece, and the positions of the thickening bulge and the grooves corresponding to each groove are provided with avoidance notches for accommodating the pressing block.

5. The front maintenance tool of claim 4, wherein: the bottom surface of installation cavity is equipped with the net strengthening rib, just the stationary blade install in on the net strengthening rib, just the side butt of stationary blade in on the terminal surface of net strengthening rib.

6. The front maintenance tool for the display screen according to any one of claims 1 to 5, characterized in that: the driving piece comprises an adjusting screw, a threaded hole is formed in the mounting shell, the adjusting screw penetrates through the threaded hole, and the end portion of the adjusting screw is opposite to the pressing block.

7. The front maintenance tool for the display screen according to any one of claims 1 to 5, characterized in that: the mounting shell comprises a sucker part, a mounting part, a handheld part and a base part, the mounting cavity is arranged on the sucker part, and the mounting part, the handheld part and the base part are all positioned on the side surface of the sucker part, which is back to the opening of the mounting cavity;

the upper end of handheld portion with the installation department links to each other, the lateral part of installation department with inhale the dish portion and link to each other, convulsions subassembly is located in the installation department, the lower extreme of handheld portion with the base portion links to each other.

8. The front maintenance tool of claim 7, wherein: the handheld portion is close to the upper end of the lateral portion of the sucker portion is provided with a switch key used for controlling the air draft assembly to be opened or closed, the sucker portion is provided with a blocking plate, the blocking plate faces towards the handheld portion, extends to the position where the switch key is pressed, and the end portion of the blocking plate is abutted to the switch key.

9. The front maintenance tool of claim 7, wherein: the installation shell still includes connecting portion, the upper end of connecting portion with the installation department links to each other, the lower extreme of connecting portion with the base portion links to each other, connecting portion are located the lateral part of handheld portion, the side of connecting portion is equipped with the joint groove, the side of inhaling the dish portion is equipped with the joint arch, the protruding joint of joint in the joint inslot.

10. The display screen front maintenance tool of claim 9, wherein: the mounting shell further comprises a fixing block, the inner side face of the fixing block is buckled on the outer wall face of the connecting portion, two ends of the fixing block extend out of two opposite side faces of the connecting portion to form two fixing sections, and the two fixing sections are connected with the sucking disc portion through fastening screws respectively.