CN220322229U - Screen panel mounting hole detection device - Google Patents

Abstract

The application relates to screen panel check out test set technical field, more specifically relates to a screen panel mounting hole detection device, include: the utility model discloses a net cover with a plurality of inserting ends, which comprises a support, a plurality of annularly arranged brackets and a plurality of rotating parts, wherein the rotating parts are in one-to-one correspondence with mounting holes on the net cover, each bracket is provided with a rotating part in a rotating way, each rotating part is provided with a plurality of inserting ends, the radial dimension of each inserting end is equal to the aperture of the mounting hole, the radial dimension of the other inserting ends is larger than or smaller than the aperture of the mounting hole, and when the net cover is arranged on the support, one inserting end on each rotating part stretches into or deviates from the corresponding mounting hole.

Description

Screen panel mounting hole detection device

Technical Field

The application relates to the technical field of net cover detection equipment, and more particularly relates to a net cover mounting hole detection device.

Background

The screen is a protection device for separating a fan from the outside, which is arranged on the outside of the fan in many ways to prevent external foreign matters from contacting the fan and causing damage to the fan or contact between a human body and the fan and cut by blades, fig. 1 illustrates a large industrial fan screen, which comprises a plurality of annular spokes 90, a plurality of connecting skeletons 91, a central member 92 and a plurality of mounting rings 93, wherein the radial dimensions of the annular spokes 90 are sequentially increased and concentrically arranged, each annular spoke 90 is welded by the connecting skeletons 91, the central member 92 is positioned at the center of the annular spoke 90, one end of each connecting skeletons 91 is welded by the central member 92, the mounting rings 93 are annularly arranged and welded by the outermost annular spoke 90, after the mounting rings 93 are welded by the annular spokes 90, the annular openings of the mounting rings 93 are closed by the annular spokes 90, and mounting holes 94 are formed, and the large industrial fan is mounted on an external object by making the mounting holes 94 face the bolt holes on the external object. However, due to machining errors, the relative positions of the mounting rings 93 may deviate, or in the actual mounting process, the plurality of mounting holes 94 are opposite to the bolt holes on the external object, but there are also deviations of the plurality of mounting holes 94 from the bolt holes on the external object, so that the large industrial fan guard cannot be stably mounted on the external object. In view of this, the screen manufacturer needs to check whether the position and the size of the mounting hole 94 are acceptable in the actual production process.

The existing screen panel mounting hole detection device, as shown in fig. 2, includes a base 95, the top surface of the base 95 has a plurality of insertion ends 96, the radial dimension of the insertion ends 96 is equal to or greater than the aperture of the bolt hole, the insertion ends 96 are in one-to-one correspondence with the mounting holes 94, when the position dimension of the mounting holes 94 is detected, at least two mounting holes 94 of the large-sized industrial fan screen panel are opposite to the corresponding insertion ends 96 and are located right above the insertion ends 96 by a detecting personnel, then the detecting personnel vertically moves down the large-sized industrial fan screen panel, if each insertion end 96 smoothly passes through the mounting hole 94 in the downward movement process, the position dimension of each mounting hole 94 is qualified, and if one or more insertion ends 96 are not inserted into the corresponding mounting holes 94 in the downward movement process of the large-sized industrial fan screen panel, the position dimension of the mounting hole 94 is unqualified. However: the radial dimension of the insertion end 96 of the mesh enclosure mounting hole detection device is constant, and the distance from the insertion end 96 to the central axis of the base 95 is constant, namely, the mesh enclosure mounting hole detection device can only detect the mounting hole 94 of a mesh enclosure with a specific dimension, the universality is poor, a mesh enclosure manufacturer needs to prepare a plurality of mesh enclosure mounting hole detection devices for detection when detecting the mounting holes 94 on mesh enclosures with various specifications, and the use cost of the manufacturer is increased.

Therefore, the requirement of providing the screen panel mounting hole detection device with adjustable radial dimension of the insertion end, adjustable position of the insertion end and better universality exists.

Disclosure of Invention

The utility model provides a screen panel mounting hole detection device for detect the position size of the mounting hole that is annular arrangement on the screen panel, wherein, screen panel mounting hole detection device includes a support, a plurality of support and a plurality of rotation piece, the support is annular arrangement, rotation piece with the mounting hole one-to-one, every all rotate on the support and install one rotation piece, every all be equipped with a plurality of insert the end on the rotation piece, and one insert the radial dimension of end equal to the aperture of mounting hole, the balance insert the radial dimension of end be greater than or less than the aperture of mounting hole, when the screen panel is placed in on the support, every insert the end on the rotation piece stretches into or deviates from corresponding mounting hole, through making be equipped with the insert the end of a plurality of different specification sizes on the rotation piece, when checking the mounting hole of different apertures, rotate in order to obtain the insert the end of corresponding size and just to the mounting hole, compare in the prior art insert the radial dimension of end is invariable, has radial dimension adjustable, better general advantage.

Another object of the present application is to provide a screen panel mounting hole detection device, wherein, the support has a plurality of spout, every all slide in the spout and be provided with one the support, it is portable to start the insertion end on the support through the support is movable, when checking the mounting hole on the screen panel of different size specifications, can be through moving the support makes the insertion end is just corresponding the mounting hole, compare in prior art insert end position is invariable, have insert end position adjustable, the better advantage of commonality.

Another object of the present application is to provide a screen panel mounting hole detection device, wherein, screen panel mounting hole detection device still includes a lifter, the lifter be in slide on the direction of height of support set up in on the support, the lifter with each leg joint, when the lifter slides, each the support is all corresponding slide in the spout, through setting up the lifter, drive each the support is all done synchronous movement, improves inspection efficiency.

In order to achieve at least one of the above objects, the present application provides a screen mounting hole detection device for detecting a position size of mounting holes in a ring arrangement on a screen, wherein the screen mounting hole detection device includes:

a support; and

the brackets are annularly arranged; and

the rotating parts are in one-to-one correspondence with the mounting holes, each rotating part is rotatably mounted on each support, each rotating part is provided with a plurality of insertion ends, the radial dimension of each insertion end is equal to the aperture of the mounting hole, the radial dimension of the other insertion ends is larger than or smaller than the aperture of the mounting hole, and when the net cover is placed on the support, one insertion end on each rotating part stretches into or deviates from the corresponding mounting hole.

In one or more embodiments of the present application, the support has a plurality of sliding grooves, and each sliding groove is slidably provided with a support.

In one or more embodiments of the present application, each of the rotating members includes a plurality of extending ends arranged in a ring shape, each of the extending ends has a connecting portion, the connecting portions are in one-to-one correspondence with the inserting ends, and each of the inserting ends is detachably connected with the corresponding connecting portion.

In one or more embodiments of the present application, each of the extending ends has a first jack, the support has a plurality of second jacks, after the rotating member rotates by a predetermined angle, the first jacks are right opposite to the second jacks, the screen panel mounting hole detection device further includes a plurality of limiting members, the limiting members are in one-to-one correspondence with the first jacks, and the limiting members simultaneously pass through the corresponding first jacks and the corresponding second jacks.

In one or more embodiments of the present application, the screen panel mounting hole detection device further includes a lifting member, the lifting member is slidably disposed on the support in a height direction of the support, and the lifting member is connected to each of the brackets, and when the lifting member slides, each of the brackets slides in the corresponding chute.

In one or more embodiments of the present application, the mesh enclosure mounting hole detection device further includes a plurality of connecting rods, the connecting rods are in one-to-one correspondence with the brackets, one end of each bracket is rotationally connected with a corresponding connecting rod, and the other end of each bracket is rotationally connected with the lifting member.

In one or more embodiments of the present application, the support includes a mounting, an increase piece, a base and a plurality of support, increase the piece and be located between the mounting with the base, just increase the both ends of piece respectively with the mounting with the base is connected, the support all is the annular arrangement and with the mounting is connected, every the support all has one the spout, the one end of spout has an import, works as the support with after the mounting is connected, the mounting seals the import of spout, every the biggest radial dimension of support is greater than the slot width of spout, just the support has two caulking grooves of interval arrangement, two the interval of caulking groove equals the slot width of spout, the one end of support passes the spout, just the both sides wall slip of spout set up in two in the caulking groove, the lifter slip set up in increase on the piece.

In one or more embodiments of the present application, the screen mounting hole detection device further includes a first fastener, the lifting member has a threaded hole thereon, and the first fastener is in threaded connection with the threaded hole and abuts against or is separated from the side wall of the lifting member.

In one or more embodiments of the present application, the mounting member has a receiving hole, and the mesh enclosure mounting hole detecting device further includes a propping member, where the propping member is slidably disposed in the receiving hole in a height direction of the support.

In one or more embodiments of the present application, a fastening seat is provided on the mounting member, the mesh enclosure mounting hole detection device further includes a pressing member, an elastic member is provided at one end of the pressing member near the fastening seat, the pressing member is connected to or separated from the fastening seat, and when the pressing member is connected to the fastening seat, the elastic member is attached to a side wall of the propping member.

In this application embodiment, screen panel mounting hole detection device includes a support, a plurality of support and a plurality of rotation piece that are annular arrangement, rotate the mounting hole one-to-one on piece and the screen panel, all rotate on each support and install a rotation piece, all be equipped with a plurality of insert the end on each rotation piece, and the radial dimension of an insert end equals the aperture of mounting hole, the radial dimension of other insert ends is greater than or is less than the aperture of mounting hole, when the screen panel is placed on the support, an insert end on each rotation piece stretches into or deviates from corresponding mounting hole, through making be equipped with the insert end of a plurality of different specification sizes on a rotation piece, when inspecting the mounting hole in different apertures, inspection personnel is through rotating the insert end in order to obtain corresponding size, insert end radial dimension is invariable in comparison with prior art, have insert end radial dimension adjustable, advantage that the commonality is better.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 illustrates a schematic structure of a prior art large-sized industrial fan guard;

FIG. 2 is a schematic diagram illustrating the structure of a conventional mesh enclosure mounting hole detecting device;

FIG. 3 is a schematic diagram showing the structure of a screen mounting hole detecting apparatus according to the present utility model;

FIG. 4 illustrates a schematic structural view of a rotating member;

FIG. 5 illustrates a partial enlarged view at C of FIG. 3;

FIG. 6 illustrates a schematic structural view of a support and a bracket;

fig. 7 illustrates a partial enlarged view at D of fig. 3.

Detailed Description

The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the present application is provided for the purpose of illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.

Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.

Summary of the application

The existing screen panel mounting hole detection device is constant in radial size of the protrusions, the distance from the protrusions to the central axis of the base is constant, namely the screen panel mounting hole detection device can only detect the mounting holes of a screen panel with a specific size, the universality is poor, a screen panel manufacturer needs to prepare a plurality of screen panel mounting hole detection devices for detection when detecting the mounting holes on the screen panels with various specifications, and the use cost of the manufacturer is increased.

Based on the technical problem, the application provides a screen panel mounting hole detection device, wherein, screen panel mounting hole detection device simple structure does not relate to complicated manufacturing process and expensive material, has higher economic nature, simultaneously, to the manufacturer, the screen panel mounting hole detection device that this application provided easily produces, and low cost is more favorable to controlling manufacturing cost, further is favorable to product popularization and use.

An exemplary mesh enclosure mounting hole detection device,

referring to fig. 3 to 7, a screen mounting hole detecting apparatus according to a preferred embodiment of the present utility model is used for detecting a screen as shown in fig. 1, more specifically, the screen has a plurality of mounting holes 94 and a central member 92 arranged in a ring shape, and the screen mounting hole detecting apparatus is used for detecting the position size of the mounting holes 94 on the screen.

As shown in fig. 3, the mesh enclosure mounting hole detecting device includes a support 10, a plurality of brackets 20 and a plurality of rotating members 30, wherein the brackets 20 are arranged in a ring shape, and in this embodiment, the number of the brackets 20 is four; the rotating members 30 are in one-to-one correspondence with the mounting holes 94, each rotating member 30 is rotatably mounted on each support 20 through a pin shaft, each rotating member 30 is provided with a plurality of insertion ends 40, the radial dimension of one insertion end 40 is equal to the aperture of the mounting hole 94, the radial dimension of the other insertion ends 40 is greater than or less than the aperture of the mounting hole 94, in this embodiment, the number of the insertion ends 40 on each rotating member 30 is four, two adjacent insertion ends 40 are mutually perpendicular, the radial dimensions of the four insertion ends 40 are different, and when the mesh enclosure is placed on the support 10, one insertion end 40 with the same radial dimension on each rotating member 30 extends into the mounting hole 94 of the mesh enclosure or the insertion ends 40 and the mounting hole 94 are arranged in a deviated manner, so that the mesh enclosure cannot be inserted into the corresponding mounting hole 94.

Before the inspection, an inspector rotates each rotary member 30 according to the aperture of the mounting hole 94 on the net cover, and selects the insertion end 40 corresponding to the aperture of the mounting hole 94 to be arranged vertically upwards, then, the net cover is placed above the support 10, and two mounting holes 94 are made to correspond to the two insertion ends 40 below the net cover, and it is pointed out that at this time, the rest of the mounting holes 94 are also located above the other insertion ends 40, and then, the inspector can determine whether the position size of each mounting hole 94 is qualified by vertically moving the net cover: when each of the insertion ends 40 with the same radial dimension is successfully inserted into the corresponding mounting hole 94, that is, the position of each mounting hole 94 is qualified in size; when the inserting ends 40 are found to be inserted into the corresponding mounting holes 94 in the downward moving process, one or more of the inserting ends 40 are arranged in a shifted manner from the corresponding mounting holes 94, that is, the inserting ends are not inserted into the corresponding mounting holes 94, that is, the position and the size of the mounting holes 94 of the net cover are not qualified.

It should be further noted that, by setting the rotating member 30 and arranging a plurality of insertion ends 40 on the rotating member 30, when testing the mounting holes 94 with different apertures, an inspector only needs to rotate each rotating member 30 to realize the change of the radial dimension of the insertion end 40, compared with the prior art that the radial dimension of the insertion end 40 is constant, the embodiment of the application has the advantages that the radial dimension of the insertion end 40 can be selected, the mounting holes 94 on various standard masks can be measured, and the universality is better.

It should also be noted that, although the net cover mounting hole detecting device is enabled to test the mounting holes 94 of various apertures by providing a plurality of the insertion ends 40, the net cover mounting hole detecting device cannot check the central axis of the mounting holes 94 when the distance from the central axis to the central axis of the net cover becomes large or small.

In view of this, in order to further improve the versatility of the screen mounting hole detecting device, as shown in fig. 3, the support 10 has a plurality of sliding grooves 1041, and each sliding groove 1041 is slidably provided with a support 20.

It should be noted that, through will support 20 slide set up in spout 1041, when the radial dimension of screen panel changes, inspection personnel can be through the adjustment the position of support 20 for insert end 40 still can aim at mounting hole 94, compare in prior art insert end 40 and support 10 central axis interval is invariable, in this application embodiment insert end 40's position is portable, applicable in the inspection of the mounting hole 94 of the screen panel of multiple specification, realizes a tractor serves several purposes, helps reducing the use cost of producer.

It should be noted that, although the mesh enclosure mounting hole detection device can measure the mounting holes 94 with various radial dimensions by providing a plurality of the insertion ends 40, there are certain limitations due to the limited number of the insertion ends 40. In view of this, to further improve the versatility of the insertion end 40 and to realize that the insertion end 40 is disposed on the rotating member 30, as shown in fig. 4, each rotating member 30 includes a plurality of extending ends 301 disposed in a ring shape, each extending end 301 has a connection portion 3011, the connection portions 3011 are in one-to-one correspondence with the insertion ends 40, and each insertion end 40 is detachably connected to the corresponding connection portion 3011.

In this embodiment, in order to realize detachable connection between the insertion end 40 and the connection portion 3011, each connection portion 3011 is a cylinder with external threads, one end of the insertion end 40 is in threaded connection with the connection portion 3011, four insertion ends 40 correspond to inspection sizes of four common specifications, and when it is required to perform position size inspection on the mounting hole 94 with a specific size other than the four inspection sizes, an inspector can take down the insertion end 40 by screwing and replace the insertion end 40 with a corresponding radial size.

Further, after the inspector selects the insertion end 40 with the corresponding radial dimension, in order to fix the position of the insertion end 40, as shown in fig. 4 and 5, each of the extending ends 301 has a first insertion hole 3012, and the bracket 20 has a plurality of second insertion holes (not shown) thereon, when the rotating member 30 rotates by a predetermined angle, the first insertion hole 3012 is opposite to the second insertion hole, the inspecting device further includes a plurality of limiting members 50, the limiting members 50 are further implemented as a pin, the limiting members 50 are in one-to-one correspondence with the first insertion holes 3012, when the limiting members 50 simultaneously pass through the corresponding first insertion holes 3012 and second insertion holes, the position of the insertion end 40 is fixed, at this time, the rotating member 30 cannot rotate circumferentially, and when the radial dimension of the insertion end 40 needs to be exchanged, the inspector can rotate the rotating member 30 after pulling out the limiting members 50.

In addition, when the radial dimension of the mesh enclosure is changed, it has been shown that the insertion end 40 is located directly below the corresponding mounting hole 94 by adjusting the position of the bracket 20, but: this process is cumbersome if each of the holders 20 is manually slid, and the inspector also measures the position size of each of the holders 20 after sliding the holders 20.

In view of this, in order to solve the above-mentioned technical problem, as shown in fig. 3, the mesh enclosure mounting hole detecting device further includes a lifting member 60, the lifting member 60 is slidably disposed on the support 10 in the height direction of the support 10, the lifting member 60 is connected to each of the brackets 20, when the lifting member 60 slides, each of the brackets 20 slides synchronously in the corresponding sliding slot 1041, so that the inspector does not need to slide the brackets 20 one by one, or measure the position and the size of each of the brackets 20 after sliding.

More specifically, in order to realize the connection between the lifting member 60 and each of the brackets 20, as shown in fig. 3, the mesh enclosure mounting hole detection device further includes a plurality of connecting rods 601, the connecting rods 601 are in one-to-one correspondence with the brackets 20, one end of each bracket 20 is in hinged connection with a corresponding one of the connecting rods 601, and the other end of each bracket 20 is in hinged connection with the lifting member 60. It should be noted that, when the lifting member 60 moves upward, each of the brackets 20 moves back to back and slides by the same distance; when the lifter 60 moves downward, each of the brackets 20 moves toward each other and slides the same distance.

In addition, in the present embodiment, as shown in fig. 3, the support 10 includes a mounting member 101, a height-increasing member 102, a base 103 and a plurality of supporting members 104, where the height-increasing member 102 is located between the mounting member 101 and the base 103, and two ends of the height-increasing member 102 are respectively connected to the mounting member 101 and the base 103, and the connection manner includes, but is not limited to, welding or screwing; in addition, the supporting members 104 are all arranged in a ring shape and are connected with the mounting member 101 in a bolt connection manner, each supporting member 104 is provided with a sliding groove 1041, one end of the sliding groove 1041 is provided with an inlet (not shown), and when the supporting member 104 is connected with the mounting member 101, the mounting member 101 closes the inlet of the sliding groove 1041; in addition, in order to achieve the sliding arrangement of the brackets 20 on the sliding groove 1041, as shown in fig. 6, the maximum radial dimension of each bracket 20 is greater than the groove width of the sliding groove 1041, the brackets 20 have two slots 201 arranged at intervals, the space between the two slots 201 is equal to the groove width of the sliding groove 1041, one end of the bracket 20 passes through the sliding groove 1041, and two side walls of the sliding groove 1041 are slidably arranged in the two slots 201, and it should be noted that, when two side wall slides of the sliding groove 1041 are arranged in the two slots 201, the supporting member 104 is bolted to the mounting member 101; the lifter 60 is further configured to be slidably disposed on the lifter 102.

Further, after the bracket 20 slides to a predetermined position, as shown in fig. 3, the screen mounting hole detecting device further includes a first fastening member 602, where the lifting member 60 has a threaded hole (not shown), the first fastening member 602 is screwed with the threaded hole and abuts against or is separated from the side wall of the height-increasing member 102, and when the first fastening member 602 abuts against and presses against the side wall of the height-increasing member 102, the position of the lifting member 60 is fixed, so as to fix the position of each bracket 20; when the first fastener 602 is disengaged from the side wall of the elevation member 102, the inspector causes the elevation member 60 to slide up and down on the elevation member 102.

In addition, when each of the insertion ends 40 passes through the corresponding mounting hole 94, it is necessary to stop the movement of the mesh enclosure after moving down by a predetermined distance, and an object is required to provide a supporting force for the mesh enclosure, specifically, as shown in fig. 3, a receiving hole (not shown) is provided in the center of the mounting member 101, and the mesh enclosure mounting hole detecting device further includes a propping member 70, where the propping member 70 is slidably disposed in the receiving hole in the height direction of the support 10. During inspection, after each of the insertion ends 40 passes through the corresponding mounting hole 94 and moves downward by a predetermined distance, the central member 92 of the mesh enclosure abuts against the abutment member 70, so that the mesh enclosure does not move downward any further under the action of gravity, thereby facilitating the inspection personnel to quickly take out the mesh enclosure.

Further, in order to achieve the adjustment of the propping member 70 in the height direction, as shown in fig. 7, a fastening seat 1011 is provided on the mounting member 101, the fastening seat 1011 is welded with the mounting member 101, the mesh enclosure mounting hole detecting device further includes a pressing member 1012, an elastic member 1013 is provided at one end of the pressing member 1012 near the fastening seat 1011, the elastic member 1013 is a rubber pad, and a pattern is provided on one surface of the rubber pad near the propping member 70, the pressing member 1012 and the fastening seat 1011 are connected or separated by a plurality of bolts, and when the pressing member 1012 and the fastening seat 1011 are connected by screwing bolts, the elastic member 1013 deforms and is attached to the side wall of the propping member 70, so as to fix the height position of the propping member 70.

In summary, the mesh enclosure mounting hole detection device according to the embodiment of the application is illustrated, and provides advantages of adjustable radial size of the insertion end, adjustable position of the insertion end, better universality and the like for the mesh enclosure mounting hole detection device.

It should be noted that in the embodiment of the present application, the mesh enclosure mounting hole detection device has a simple structure, does not involve a complex manufacturing process and expensive materials, and has higher economical efficiency. Meanwhile, for manufacturers, the screen panel mounting hole detection device is easy to produce, low in cost, more beneficial to control of production cost and further beneficial to product popularization and use.

It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.

Claims (10)

1. A screen panel mounting hole detection device for detect the position size that is the mounting hole that the annular was arranged on the screen panel, its characterized in that: the screen panel mounting hole detection device includes

A support; and

the brackets are annularly arranged; and

the rotating parts are in one-to-one correspondence with the mounting holes, each rotating part is rotatably mounted on each support, each rotating part is provided with a plurality of insertion ends, the radial dimension of each insertion end is equal to the aperture of the mounting hole, the radial dimension of the other insertion ends is larger than or smaller than the aperture of the mounting hole, and when the net cover is placed on the support, one insertion end on each rotating part stretches into or deviates from the corresponding mounting hole.

2. The screen mounting hole detecting apparatus according to claim 1, wherein: the support is provided with a plurality of sliding grooves, and each sliding groove is internally provided with a support in a sliding manner.

3. The screen mounting hole detecting apparatus according to claim 2, wherein: each rotating piece comprises a plurality of extending ends which are annularly arranged, each extending end is provided with a connecting part, the connecting parts are in one-to-one correspondence with the inserting ends, and each inserting end is detachably connected with the corresponding connecting part.

4. A screen mounting hole detection apparatus according to claim 3, wherein: each extending end is provided with a first jack, the support is provided with a plurality of second jacks, after the rotating piece rotates by a preset angle, the first jacks are right opposite to the second jacks, the net cover mounting hole detection device further comprises a plurality of limiting pieces, the limiting pieces are in one-to-one correspondence with the first jacks, and the limiting pieces penetrate through the corresponding first jacks and the corresponding second jacks at the same time.

5. The screen mounting hole detecting apparatus according to claim 4, wherein: the screen panel mounting hole detection device further comprises a lifting piece, the lifting piece is arranged on the support in a sliding mode in the height direction of the support, the lifting piece is connected with each support, and when the lifting piece slides, each support slides in the corresponding sliding groove.

6. The screen mounting hole detecting apparatus according to claim 5, wherein: the screen panel mounting hole detection device still includes a plurality of connecting rod, the connecting rod with the support one-to-one, every the one end of support all with a corresponding connecting rod rotates to be connected, and every the other end of support all with the lifter rotates to be connected.

7. The screen mounting hole detecting apparatus according to claim 6, wherein: the support comprises a mounting piece, an heightening piece, a base and a plurality of supporting pieces, wherein the heightening piece is positioned between the mounting piece and the base, two ends of the heightening piece are respectively connected with the mounting piece and the base, the supporting pieces are all in annular arrangement and are connected with the mounting piece, each supporting piece is provided with one sliding groove, one end of each sliding groove is provided with an inlet, after the supporting piece is connected with the mounting piece, the mounting piece seals the inlet of each sliding groove, the maximum radial dimension of each support is larger than the groove width of each sliding groove, the supports are provided with two caulking grooves which are arranged at intervals, the distance between the two caulking grooves is equal to the groove width of each sliding groove, one end of each support penetrates through each sliding groove, two side walls of each sliding groove are arranged in the corresponding caulking grooves in a sliding mode, and the elevating piece is arranged on the heightening piece in a sliding mode.

8. The screen mounting hole detection apparatus of claim 7, wherein: the screen panel mounting hole detection device further comprises a first fastening piece, a threaded hole is formed in the lifting piece, and the first fastening piece is in threaded connection with the threaded hole and is abutted to or separated from the side wall of the heightening piece.

9. The screen mounting hole detection apparatus of claim 8, wherein: the mounting piece is provided with a containing hole, and the screen panel mounting hole detection device further comprises a propping piece which is arranged in the containing hole in a sliding mode in the height direction of the support.

10. The screen mounting hole detection apparatus according to claim 9, wherein: the screen panel mounting hole detection device is characterized in that a fastening seat is arranged on the mounting part, the screen panel mounting hole detection device further comprises a pressing part, an elastic part is arranged at one end, close to the fastening seat, of the pressing part, the pressing part is connected with or separated from the fastening seat, and when the pressing part is connected with the fastening seat, the elastic part is attached to the side wall of the propping part.