Screening mechanism with adjustable length

Abstract

The utility model discloses an adjustable length screening mechanism which comprises a bottom plate, a meter clamping seat, a measuring meter and a supporting plate, the meter clamping seat and the supporting plate are both arranged on the bottom plate, the measuring meter is clamped on the meter clamping seat, the supporting plate is provided with two first clamping blocks and a second clamping block, the number of the first clamping blocks is two, and the number of the second clamping blocks is two. The number of the first clamping blocks is two, the number of the second clamping blocks is two, a first clamping opening is formed between the two first clamping blocks, a second clamping opening is formed between the two second clamping blocks, the first clamping opening is used for clamping a USB interface, and the first clamping blocks are provided with attaching planes. Compared with the prior art, the screening mechanism has the following beneficial effects that the length of the USB plug interface of the WIFI module can be measured and screened, the whole measuring and screening process can be carried out only by placing the WIFI module on the supporting plate, operation is convenient and fast, and errors caused by different operation habits of operators are avoided.

Description

Technical Field

[0001] The utility model relates to the field of length inspection equipment, in particular to an adjustable length screening mechanism. Background Art

[0002] The plug-in WI-FI module is a commonly used auxiliary spare part on current ophthalmic equipment. The structure of the current plug-in WI-FI module can be generally referred to as shown in the patent publication document CN304095828S, that is, it consists of a box (containing a circuit board) plus an external USB plug interface (where the USB plug interface is fixed on the circuit board). The USB plug interface is a standard part. However, due to the difference in the length of the USB plug interface exposed outside the box for the modules produced by different enterprises, if the length of the exposed part of the USB plug interface is too short, then there may be problems such as unstable connection with the equipment and disconnection during the use of this WIFI module. To measure the exposed length of the USB plug interface, the commonly used method at present is to manually clamp it and cooperate with measuring tools such as vernier calipers, height gauges, and micrometers for measurement. Since this measurement method is manually clamped each time, the measurement reference plane is not fixed, and the measuring rod is prone to deviation during the use of the measuring tool, resulting in low measurement accuracy and low measurement efficiency. In addition, different measurement personnel's operating habits will also cause measurement deviations. Summary of the Utility Model

[0003] In view of the above problems, the utility model provides an adjustable length screening mechanism, which can measure and screen the length of the USB plug interface of the WIFI module. The entire measurement and screening process only needs to place the WIFI module on the support plate to carry out, which is convenient and fast to operate, and there will be no errors caused by different operating habits of the operators.

[0004] The technical solution adopted by the utility model is as follows:

[0005] An adjustable length screening mechanism includes a bottom plate, a dial gauge holder, a measuring dial gauge, and a support plate. The dial gauge holder and the support plate are both arranged on the bottom plate. The measuring dial gauge is clamped on the dial gauge holder. The support plate is provided with a first clamping block and a second clamping block. There are two first clamping blocks and two second clamping blocks. A first clamping opening is arranged between the two first clamping blocks, and a second clamping opening is arranged between the two second clamping blocks. The first clamping opening is used for clamping the USB plug interface, and the first clamping block is provided with a tight-fitting plane.

[0006] The measurement method of this species screening mechanism is as follows. First, the measuring instrument is clamped and installed on the instrument clamp base, and it is ensured that the instrument clamp base does not clamp the rod of the measuring instrument, and the rod can move freely. Then, the WIFI module to be measured is placed on the support plate, and the USB plug interface of the WIFI module is stuck in the first clamping port, while the box part of the WIFI module is clamped by the second clamping port. The outer wall of the WIFI module is attached to the attaching plane. On both sides of the attaching plane are the USB plug interface and the box respectively. In this way, the attaching plane is the reference plane for measurement. The length of the USB plug interface on one side of the reference plane is the exposed length of the USB plug interface. In the natural state of the measuring instrument, the contact head on the rod does not contact any object, the rod does not shrink, and the distance between the contact head and the reference plane is a standard value, which can be adjusted according to the usage needs. The adjustment method is to change the position of the measuring instrument on the instrument clamp base, which can change the position of the contact head and the contact plane, so as to realize the adjustment of the standard value. During measurement, when the USB plug interface of the WIFI module is inserted into the first clamping port and the box of the WIFI is attached to the attaching plane, then observe whether the rod shrinks. If the USB plug interface does not contact the contact head at this time, it means that the exposed length of the USB plug interface is less than the standard value. If the USB plug interface just contacts the contact head and the rod does not shrink, the length of the USB plug interface is equal to the standard value at this time. If the USB plug interface contacts the contact head and the rod shrinks, the length of the USB plug interface is greater than the standard value at this time, and the greater the shrinkage value of the rod, the greater the length of the USB plug interface is greater than the standard. Therefore, this species screening mechanism can screen the length of the USB plug interface of the WIFI module.

[0007] In summary, in this species screening mechanism, the length of the USB plug interface of the WIFI module can be measured and screened. The entire measurement and screening process only needs to place the WIFI module on the support plate to carry out, which is convenient and fast to operate, and there will be no errors caused by different operating habits of operators.

[0008] Specifically, in this mechanism, the measuring instrument is clamped and installed on the instrument clamp base. By turning the screw on the instrument clamp base, the instrument clamp base can be loosened to clamp the measuring instrument. After the position of the measuring instrument is adjusted in place, the screw on the instrument clamp base can be tightened again.

[0009] Specifically, in this mechanism, the instrument clamp base is also installed on the bottom plate by screws.

[0010] Optionally, a ball head plug is installed on the second clamping block.

[0011] The function of setting the ball head plug is to enable the box part of the WIFI module to be stably clamped by the second clamping port.

[0012] Optionally, the ball head plugs are arranged on both sides of the second clamping port.

[0013] On both sides of the second clamping port, there are provided the spherical head plug columns. The spherical head plug columns located on both sides of the second clamping port respectively abut against the box of the WIFI module from both sides, so as to ensure that the box can be stably clamped by the second clamping port.

[0014] Specifically, there are two spherical head plug columns. One spherical head plug column is provided on each second clamping block, and the two spherical head plug columns are on a straight line.

[0015] Optionally, each first clamping block is provided with a fitting plane, and the fitting planes of the two first clamping blocks are in the same plane.

[0016] Fitting planes are provided on both first clamping blocks, and the fitting planes of the two first clamping blocks being in the same plane can more stably fit against the box, ensuring that the measuring instrument can more accurately measure the length of the USB jack outside the box.

[0017] Optionally, the support plate is parallel and closely attached to the bottom plate.

[0018] Optionally, the first clamping block and the second clamping block are both perpendicular to the support plate.

[0019] Optionally, the bottom plate is provided with foot pads.

[0020] Specifically, the foot pads are rubber foot pads. The rubber foot pads are installed on the bottom plate by screws, and the foot pads and the measuring instrument are respectively located on both sides of the bottom plate.

[0021] Optionally, the measuring instrument is a micrometer or a dial indicator.

[0022] The beneficial effects of the present utility model are: it can measure and screen the length of the USB jack of the WIFI module. The whole measurement and screening process only needs to place the WIFI module on the support plate to carry out, which is convenient and fast in operation, and there will be no errors caused by different operating habits of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0024] Figure 1 is a schematic structural diagram of an adjustable length screening mechanism;

[0025] Figure 2 is a distribution diagram of the spherical head plug columns on both sides of the second clamping port;

[0026] Figure 3 It is a schematic diagram of the state before measurement of the adjustable-length screening mechanism;

[0027] Figure 4 It is a schematic diagram of the state during measurement of the adjustable-length screening mechanism.

[0028] The reference numerals in the figure are as follows: 1, base plate; 2, screw; 3, measuring gauge; 301, display screen; 302, gauge rod; 303, contact head; 4, gauge clamp seat; 51, first clamping block; 501, first clamping opening; 511, fitting plane; 52, second clamping block; 502, second clamping opening; 6, foot pad; 7, ball head plug column; 701, spring; 702, spherical head; 801, USB jack; 802, box. Specific embodiments

[0029] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar generalizations without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0031] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0032] As shown in the attached Figure 1 and the attached Figure 2As shown in the figure, a debuggable length screening mechanism includes a bottom plate 1, a meter clip seat 4, a measuring meter 3, and a support plate. The meter clip seat 4 and the support plate are both arranged on the bottom plate 1. The measuring meter 3 is clamped on the meter clip seat 4. The support plate is provided with a first clamping block 51 and a second clamping block 52. There are two first clamping blocks 51 and two second clamping blocks 52. A first clamping opening 501 is arranged between the two first clamping blocks 51, and a second clamping opening 502 is arranged between the two second clamping blocks 52. The first clamping opening 501 is used to clamp the USB plug interface 801. The first clamping block 51 is provided with a tight-fitting plane 511.

[0033] The measurement method of this screening mechanism is as follows. First, the measuring meter 3 is clamped and installed on the meter clip seat 4, and it is ensured that the meter clip seat 4 does not clamp the meter rod 302 of the measuring meter 3, and the meter rod 302 can move freely (this state is as shown in the attachment Figure 3 shown, and the arrow in the attachment Figure 3 is the adjustment direction of the measuring meter 3). Then, the WIFI module to be measured is placed on the support plate, and the USB plug interface 801 of the WIFI module is stuck in the first clamping opening 501, while the box 802 part of the WIFI module is clamped by the second clamping opening 502. The outer wall of the WIFI module is attached to the tight-fitting plane 511. The two sides of the tight-fitting plane 511 are the USB plug interface 801 and the box 802 respectively. In this way, the tight-fitting plane 511 is the reference plane for measurement, and the length of the USB plug interface 801 on one side of the reference plane is the exposed length of the USB plug interface 801. In the natural state of the measuring meter 3, the contact head 303 on the meter rod 302 does not contact any object, the meter rod 302 does not shrink, and the distance between the contact head 303 and the reference plane is a standard value, which can be adjusted according to the usage needs. The adjustment method is to change the position of the measuring meter 3 on the meter clip seat 4 to change the position of the contact head 303 and the contact plane, so as to realize the adjustment of the standard value. During measurement, when the USB plug interface 801 of the WIFI module is stuck in the first clamping opening 501 (this state is the measurement and screening state, which can be seen in the attachment Figure 4 shown), and the box 802 of the WIFI is attached to the tight-fitting plane 511, then observe whether the meter rod 302 shrinks. If the USB plug interface 801 does not contact the contact head 303 at this time, it means that the exposed length of the USB plug interface 801 is less than the standard value. If the USB plug interface 801 just contacts the contact head 303 and the meter rod 302 does not shrink, the length of the USB plug interface 801 is equal to the standard value at this time. If the USB plug interface 801 contacts the contact head 303 and the meter rod 302 shrinks, the length of the USB plug interface 801 is greater than the standard value at this time, and the greater the shrinkage value of the meter rod, the greater the length of the USB plug interface 801 is greater than the standard. Therefore, this screening mechanism can screen the length of the USB plug interface 801 of the WIFI module.

[0034] In summary, this screening mechanism can measure and screen the length of the USB plug interface 801 of the WIFI module. The entire measurement and screening process only requires placing the WIFI module on the support plate. The operation is convenient and fast, and there will be no errors caused by different operating habits of operators.

[0035] Specifically, it should be noted that this mechanism can not only measure and screen WIFI modules, but also devices such as USB flash drives.

[0036] Specifically, in this mechanism, the measuring meter 3 is clamped and installed on the meter clamp seat 4. The meter clamp seat 4 can loosen the clamping of the measuring meter 3 by turning the screw 2 on the meter clamp seat 4. When the position of the measuring meter 3 is adjusted to the right position, the screw 2 on the meter clamp seat 4 can be tightened again.

[0037] Specifically, in this mechanism, the table clamp seat 4 is also mounted on the base plate 1 by means of screws 2 .

[0038] As attached Figure 1 And attached Figure 2 As shown, the second clamping block 52 is installed with a ball plug 7.

[0039] For details, please refer to the attached Figure 2 As shown in FIG. 8 , the spring 701 on the ball plug 7 drives the round ball head 702 to bounce toward the box 802 so as to resist the box 802 .

[0040] The purpose of providing the ball plug 7 is to enable the box 802 of the WIFI module to be stably clamped by the second clamping opening 502 .

[0041] As attached Figure 1 And attached Figure 2 As shown, ball plugs 7 are provided on both sides of the second clamping opening 502 .

[0042] Ball plugs 7 are provided on both sides of the second clamping opening 502 . The ball plugs 7 on both sides of the second clamping opening 502 respectively press against the box 802 of the WIFI module from both sides, thus ensuring that the box 802 can be stably clamped by the second clamping opening 502 .

[0043] Specifically, there are two ball plugs 7 , one ball plug 7 is disposed on each second clamping block 52 , and the two ball plugs 7 are located in a straight line.

[0044] As attached Figure 1 And attached Figure 2 As shown, each first clamping block 51 is provided with a close contact plane 511 , and the close contact planes 511 of the two first clamping blocks 51 are in the same plane.

[0045] Both of the two first clamping blocks 51 are provided with a fitting plane 511, and the fitting planes 511 on the two first clamping blocks 51 are in the same plane, which can more stably fit the box 802 and ensure that the measuring instrument 3 can more accurately measure the length of the USB jack 801 outside the box 802.

[0046] As shown in the Figure 1 and the Figure 2 accompanying drawings, the support plate is parallelly and tightly attached to the bottom plate 1.

[0047] As shown in the Figure 1 and the Figure 2 accompanying drawings, the first clamping block 51 and the second clamping block 52 are both perpendicular to the support plate.

[0048] As shown in the Figure 1 and the Figure 2 accompanying drawings, the bottom plate 1 is provided with foot pads 6.

[0049] Specifically, the foot pads 6 are rubber foot pads 6. The rubber foot pads 6 are installed on the bottom plate 1 through screws 2, and the foot pads 6 and the measuring instrument 3 are located on both sides of the bottom plate 1 respectively.

[0050] As shown in the Figure 1 and the Figure 2 accompanying drawings, the measuring instrument 3 is a micrometer or a dial indicator.

[0051] The above-described embodiments only represent some embodiments of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An adjustable-length screening mechanism, characterized in that It includes a bottom plate, a watch clip seat, a measuring gauge, and a support plate. The watch clip seat and the support plate are both arranged on the bottom plate. The measuring gauge is clamped by the watch clip seat. The support plate is provided with a first clamping block and a second clamping block. There are two first clamping blocks and two second clamping blocks. A first clamping opening is arranged between the two first clamping blocks, and a second clamping opening is arranged between the two second clamping blocks. The first clamping opening is used for clamping a USB plug interface, and the first clamping block is provided with a fitting plane.

2. The adjustable-length screening mechanism according to claim 1, characterized in that The second clamping block is installed with a ball head plug post.

3. The adjustable-length screening mechanism according to claim 2, characterized in that, The ball head plug posts are arranged on both sides of the second clamping opening.

4. A debuggable length screening mechanism according to claim 1, characterized in that Each first clamping block is provided with a fitting plane, and the fitting planes of the two first clamping blocks are in the same plane.

5. The adjustable-length screening mechanism according to claim 1, wherein The support plate is parallelly and tightly attached to the bottom plate.

6. The adjustable-length screening mechanism according to claim 1, characterized in that The first clamping block and the second clamping block are both perpendicular to the support plate.

7. A debuggable length screening mechanism according to claim 1, characterized in that, The bottom plate is provided with foot pads.

8. A debuggable length screening mechanism according to claim 1, characterized in that The measuring gauge is a micrometer or a dial indicator.

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