CN212300220U - Appearance detection structure for ceramic bulletproof plugboard - Google Patents
Appearance detection structure for ceramic bulletproof plugboard Download PDFInfo
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- CN212300220U CN212300220U CN202021412116.3U CN202021412116U CN212300220U CN 212300220 U CN212300220 U CN 212300220U CN 202021412116 U CN202021412116 U CN 202021412116U CN 212300220 U CN212300220 U CN 212300220U
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Abstract
The utility model discloses a appearance detection structure for shellproof picture peg of pottery relates to shellproof picture peg appearance and detects technical field. The appearance detection structure for the ceramic bulletproof plugboard comprises an outline detection part, wherein an outline detection groove is formed in the outline detection part and used for accommodating the ceramic bulletproof plugboard to be detected, and the side wall of the outline detection groove is matched with the edge of the ceramic bulletproof plugboard to be detected, so that when the ceramic bulletproof plugboard to be detected is placed in the outline detection groove, whether the gap between the side wall of the outline detection groove and the edge of the ceramic bulletproof plugboard to be detected is larger than a preset gap or not is detected. The appearance detection structure for the ceramic bulletproof flashboard has the characteristics of convenience in detection, high detection efficiency and suitability for batch detection.
Description
Technical Field
The utility model relates to a shellproof picture peg appearance detects technical field particularly, relates to an appearance detection structure for shellproof picture peg of pottery.
Background
At present, the method for detecting the radian and the shape of the ceramic plate has three-dimensional scanning detection, and the three-dimensional scanning has higher accuracy, but the method has lower efficiency, higher requirement on operators and too high cost, and is not suitable for batch detection.
In view of the above, it is important to develop a shape detection structure for a ceramic bulletproof insert plate, which can solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an appearance detection structure for shellproof picture peg of pottery, it has the detection convenience, and detection efficiency is high, and is fit for the characteristics that detect in batches.
The utility model provides a technical scheme:
in a first aspect, an embodiment of the utility model provides an appearance detection structure for a ceramic bulletproof plugboard, which comprises a contour detection piece, wherein a contour detection groove is formed on the contour detection piece; the contour detection groove is used for accommodating a ceramic bulletproof plugboard to be detected, the side wall of the contour detection groove is matched with the edge of the ceramic bulletproof plugboard to be detected, and therefore the ceramic bulletproof plugboard to be detected is placed in the contour detection groove and used for detecting whether the gap between the side wall of the contour detection groove and the edge of the ceramic bulletproof plugboard to be detected is larger than a preset gap or not.
With reference to the first aspect, in a first implementation manner of the first aspect, a bottom surface of the contour detection groove is a detection surface; the detection face is recessed arcwall face, and be used for with the first face of awaiting measuring of the ceramic bulletproof picture peg that awaits measuring supports and holds, is in order to place the ceramic bulletproof picture peg that awaits measuring in during the profile detection recess, be used for the detection the ceramic bulletproof picture peg that awaits measuring whether can to in the profile detection recess or rock outward, thereby detect the detection face with the laminating condition of the laminating of the first face of awaiting measuring, wherein, the first face of awaiting measuring does the side of evagination on the ceramic bulletproof picture peg that awaits measuring.
With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, an observation hole is formed in the detection surface, and the observation hole penetrates through the contour detection piece and is located on the bottom wall of the contour detection groove.
With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, the observation holes are arranged in a long strip shape, and the number of the observation holes is multiple.
With reference to the first aspect and the foregoing implementation manner of the first aspect, in a fourth implementation manner of the first aspect, the side wall of the contour detection groove is parallel to the opening direction of the contour detection groove.
With the combination of the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, the opening edge of the contour detection groove is in a curve extending configuration, so as to be placed on the ceramic bulletproof flashboard to be detected in the contour detection groove, and is used for detecting whether the opening edge of the contour detection groove and the edge of the second surface to be detected are in the direction of the opening of the contour detection groove, or not, the distance is greater than a preset distance, wherein the second surface to be detected is the side surface of the ceramic bulletproof flashboard to be detected, which is concave inwards.
With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the appearance detection structure for the ceramic bulletproof insert plate further includes a base, the contour detection part is installed on the top of the base, and the weight of the base is greater than that of the ceramic bulletproof insert plate to be detected.
With reference to the first aspect and the foregoing implementation manner, in a seventh implementation manner of the first aspect, the bottom of the base is disposed obliquely, so that when the base is placed on a horizontal plane, an acute angle is formed between an opening direction of the contour detection groove and the horizontal plane.
With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the contour detection part is further provided with a pick-and-place groove, the pick-and-place groove is communicated with the contour detection groove, and an opening direction of the pick-and-place groove is the same as an opening direction of the contour detection groove.
With reference to the first aspect and the foregoing implementation manner, in a ninth implementation manner of the first aspect, the pick-and-place groove is located on one side of the contour detection groove, so that when the base is placed on a horizontal plane, the pick-and-place groove is higher than the contour detection groove.
Compared with the prior art, the embodiment of the utility model provides an appearance detection structure for shellproof picture peg of pottery includes for prior art's beneficial effect:
the outline detection piece is provided with an outline detection groove, the outline detection groove is used for accommodating the ceramic bulletproof plugboard to be detected, and the side wall of the outline detection groove is matched with the edge of the ceramic bulletproof plugboard to be detected, so that when the ceramic bulletproof plugboard to be detected is placed in the outline detection groove, whether the gap between the side wall of the outline detection groove and the edge of the ceramic bulletproof plugboard to be detected is larger than a preset gap or not is detected. In other words, whether the outline of the ceramic bulletproof plugboard to be detected meets the preset requirement can be detected by placing the ceramic bulletproof plugboard to be detected in the outline detection groove and checking the gap condition between the side wall of the outline detection groove and the edge of the ceramic bulletproof plugboard to be detected, and thus, the outline of the ceramic bulletproof plugboard to be detected is detected by arranging the outline detection groove for accommodating the ceramic bulletproof plugboard to be detected.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.
Fig. 1 is a schematic structural diagram of an appearance detection structure for a ceramic bulletproof inserting plate according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of an appearance detection structure for a ceramic bulletproof plugboard provided by an embodiment of the present invention when the appearance detection structure includes a base.
Fig. 3 is a schematic cross-sectional view taken along line B-B in fig. 2.
Icon: 10-a shape detection structure for the ceramic bulletproof flashboard; 11-a profile detection member; 111-profile detection grooves; 112-detection surface; 113-a viewing port; 114-taking and placing groove; 12-a base; 900-a ceramic bulletproof flashboard to be tested; 910-a first surface to be measured; 920-second surface to be measured.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally used to place the products of the present invention, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or component 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. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The following describes in detail embodiments of the present invention with reference to the accompanying drawings.
Example (b):
referring to fig. 1, fig. 2 and fig. 3, fig. 1 is a schematic structural diagram of an appearance inspection structure 10 for a ceramic bulletproof gate according to an embodiment of the present invention. Fig. 2 is a schematic structural diagram of an appearance inspection structure 10 for a ceramic bulletproof gate according to an embodiment of the present invention, which includes a base 12. Fig. 3 is a schematic cross-sectional view taken along line B-B in fig. 2.
The embodiment of the utility model provides a structure 10 is detected to appearance for ceramic shellproof picture peg, this structure 10 is detected to appearance for ceramic shellproof picture peg has the detection convenience, and detection efficiency is high, and is fit for the characteristics that detect in batches. The shape detection structure 10 for the ceramic bulletproof insert plate can be used in cooperation with a detection sensor, such as a gap sensor, and of course, the shape detection structure 10 for the ceramic bulletproof insert plate can also be used independently.
The structural composition, the working principle and the beneficial effects of the appearance detecting structure 10 for the ceramic bulletproof inserting plate provided by the embodiment of the invention will be specifically described below.
The appearance detection structure 10 for the ceramic bulletproof flashboard comprises an outline detection part 11, wherein an outline detection groove 111 is formed in the outline detection part 11, the outline detection groove 111 is used for accommodating the ceramic bulletproof flashboard 900 to be detected, and the side wall of the outline detection groove 111 is matched with the edge of the ceramic bulletproof flashboard 900 to be detected, so that when the ceramic bulletproof flashboard 900 to be detected is placed in the outline detection groove 111, whether the gap between the side wall of the outline detection groove 111 and the edge of the ceramic bulletproof flashboard 900 to be detected is larger than a preset gap or not is detected. In other words, by placing the ceramic bulletproof insert board 900 to be tested in the contour detection groove 111, checking the gap between the sidewall of the contour detection groove 111 and the edge of the ceramic bulletproof insert board 900 to be tested, it can be detected whether the contour of the ceramic bulletproof insert board 900 to be tested meets the preset requirement, for example, the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof insert plate 900 to be tested is larger than the maximum value of the preset gap range, which indicates that the contour of the ceramic bulletproof insert plate 900 to be tested is smaller, and the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof insert plate 900 to be detected is smaller than the minimum value of the preset gap range, which shows that the contour of the ceramic bulletproof insert plate 900 to be detected is larger, and when the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof inserting plate 900 to be detected is within the preset gap range, it is indicated that the contour of the ceramic bulletproof inserting plate 900 to be detected meets the preset requirement.
Therefore, the outline detection groove 111 for accommodating the ceramic bulletproof plugboard 900 to be detected is arranged to detect the outline of the ceramic bulletproof plugboard 900 to be detected, the detection mode is simple, the operation is convenient, the detection efficiency is high, and the method is suitable for batch detection.
Further, the bottom surface of the contour detection groove 111 is the detection surface 112, the detection surface 112 is a concave arc surface, and is used for abutting against the first surface 910 to be detected of the ceramic bulletproof plug board 900 to be detected, so that when the ceramic bulletproof plug board 900 to be detected is placed in the contour detection groove 111, the detection surface is used for detecting whether the ceramic bulletproof plug board 900 to be detected can rock inwards or outwards the contour detection groove 111, namely rock in the opening direction of the contour detection groove 111, thereby detecting the fitting condition of the detection surface 112 and the first surface 910 to be detected, wherein the first surface 910 to be detected is an outward convex side surface of the ceramic bulletproof plug board 900 to be detected. In other words, when the ceramic bulletproof insert plate 900 to be tested is placed in the contour detection groove 111, whether the joint of the detection surface 112 and the first surface to be detected 910 is sufficiently jointed is detected by checking that the ceramic bulletproof insert plate 900 to be tested swings in the opening direction of the contour detection groove 111, so as to detect whether the first surface to be detected 910 meets the preset requirement, for example, when the ceramic bulletproof insert plate 900 to be tested can swing in the opening direction of the contour detection groove 111, it is indicated that the joint of the detection surface 112 and the first surface to be detected 910 is not sufficiently jointed, and the first surface to be detected 910 does not meet the preset requirement.
Further, the detecting surface 112 may be formed with an observing hole 113, and the observing hole 113 penetrates the contour detecting member 11 and is located at the bottom wall of the contour detecting groove 111. Thus, when the ceramic bulletproof flashboard 900 to be detected is placed in the contour detection groove 111, a detector can check whether the joint of the detection surface 112 and the first surface to be detected 910 is sufficiently jointed through the observation hole 113, so that the accuracy of detecting the first surface to be detected 910 is improved.
Further, the observation hole 113 may be a long strip, and the number of the observation hole 113 may be multiple, so that the inspector may check whether the joint between the detection surface 112 and the first surface to be detected 910 is sufficiently jointed through the observation hole 113 at different positions, thereby further improving the accuracy of detecting the first surface to be detected 910.
It should be noted that, in the present embodiment, two observation holes 113 are provided and are arranged in parallel, and in other embodiments, the observation holes 113 may also be provided in other numbers and arranged in other manners.
Further, the side walls of the contour detection groove 111 are parallel to the opening direction of the contour detection groove 111, in other words, in fig. 2, all the side walls of the contour detection groove 111 are perpendicular to the paper surface, so that the ceramic bulletproof flashboard 900 to be tested is placed in the contour detection groove 111, or the ceramic bulletproof flashboard 900 to be tested is taken up from the contour detection groove 111, and the detection by an operator is facilitated, and the detection accuracy is improved.
Referring to fig. 1 and fig. 3, the opening edge of the outline detection groove 111 may be extended in a curve to detect whether the distance between the opening edge of the outline detection groove 111 and the edge of the second surface to be detected 920 in the opening direction of the outline detection groove 111 is greater than a preset distance when the ceramic bulletproof insertion board 900 to be detected is placed in the outline detection groove 111, wherein the second surface to be detected 920 is a concave side surface on the ceramic bulletproof insertion board 900 to be detected, in other words, the opening edge of the outline detection groove 111 corresponds to the edge of the second surface to be detected 920, and when the ceramic bulletproof insertion board 900 to be detected is placed in the outline detection groove 111, if the edge of the second surface to be detected 920 is concave into the outline detection groove 111 or the edge of the second surface to be detected 920 is convex into the outline detection groove 111, it is determined that the ceramic bulletproof insertion board 900 to be detected is abnormal, it may be determined whether the distance between the opening edge of the outline detection groove 111 and the edge of the second surface to be detected 920 And (4) judging whether the outline of the ceramic bulletproof inserting plate 900 to be tested is abnormal or not according to the distance.
Further, the appearance detection structure 10 for the ceramic bulletproof flashboard further comprises a base 12, the outline detection piece 11 can be installed at the top of the base 12, and the weight of the base 12 is greater than that of the ceramic bulletproof flashboard 900 to be detected, so that the outline detection piece 11 can be kept stable when a detector performs detection, and the detection efficiency is further improved.
Further, the bottom of the base 12 can be obliquely arranged, so that when the base 12 is placed on a horizontal plane, the opening direction of the contour detection groove 111 forms an acute angle with the horizontal plane, so that an operator can observe and operate the ceramic bulletproof flashboard 900 to be tested, which is located in the contour detection groove 111.
Furthermore, the outline detection part 11 is further provided with a taking and placing groove 114, the taking and placing groove 114 is communicated with the outline detection groove 111, and the opening direction of the taking and placing groove 114 is the same as the opening direction of the outline detection groove 111, so that a detector can conveniently take the ceramic bulletproof inserting plate 900 to be detected from the outline detection groove 111 through the taking and placing groove 114, and the detection efficiency is further improved.
It should be noted that, in the present embodiment, the taking and placing groove 114 is located at one side of the contour detection groove 111, so that when the base 12 is placed in the horizontal plane, the taking and placing groove 114 is higher than the contour detection groove 111, so that when a tester places the ceramic bulletproof plugboard 900 to be tested in the contour detection groove 111, the edge of the ceramic bulletproof plugboard 900 to be tested may be placed at a lower position in the contour detection groove 111, and then the ceramic bulletproof plugboard 900 to be tested is gradually and completely placed in the contour detection groove 111, so that the tester can place the ceramic bulletproof plugboard 900 to be tested in the contour detection groove 111 more stably.
The embodiment of the utility model provides a theory of operation that is used for appearance detection structure 10 of shellproof picture peg of pottery is:
the contour detection part 11 is provided with a contour detection groove 111, the contour detection groove 111 is used for accommodating the ceramic bulletproof flashboard 900 to be detected, and the side wall of the contour detection groove 111 is matched with the edge of the ceramic bulletproof flashboard 900 to be detected, so that when the ceramic bulletproof flashboard 900 to be detected is placed in the contour detection groove 111, the contour detection groove 111 is used for detecting whether the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof flashboard 900 to be detected is larger than a preset gap. In other words, by placing the ceramic bulletproof insert board 900 to be tested in the contour detection groove 111, checking the gap between the sidewall of the contour detection groove 111 and the edge of the ceramic bulletproof insert board 900 to be tested, it can be detected whether the contour of the ceramic bulletproof insert board 900 to be tested meets the preset requirement, for example, the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof insert plate 900 to be tested is larger than the maximum value of the preset gap range, which indicates that the contour of the ceramic bulletproof insert plate 900 to be tested is smaller, and the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof insert plate 900 to be detected is smaller than the minimum value of the preset gap range, which shows that the contour of the ceramic bulletproof insert plate 900 to be detected is larger, and when the gap between the side wall of the contour detection groove 111 and the edge of the ceramic bulletproof inserting plate 900 to be detected is within the preset gap range, it is indicated that the contour of the ceramic bulletproof inserting plate 900 to be detected meets the preset requirement. Therefore, the outline detection groove 111 for accommodating the ceramic bulletproof plugboard 900 to be detected is arranged to detect the outline of the ceramic bulletproof plugboard 900 to be detected, the detection mode is simple, the operation is convenient, the detection efficiency is high, and the method is suitable for batch detection.
In summary, the following steps:
the embodiment of the utility model provides an appearance detection structure 10 for shellproof picture peg of pottery, it has the detection convenience, and detection efficiency is high, and is fit for the characteristics that detect in batches.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that the features in the above embodiments may be combined with each other without conflict, and various modifications and variations of the present invention are possible. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The appearance detection structure for the ceramic bulletproof flashboard is characterized by comprising an outline detection piece (11), wherein the outline detection piece (11) is provided with an outline detection groove (111);
the contour detection groove (111) is used for accommodating the ceramic bulletproof inserting plate (900) to be detected, the side wall of the contour detection groove (111) is matched with the edge of the ceramic bulletproof inserting plate (900) to be detected, so that the ceramic bulletproof inserting plate (900) to be detected is placed in the contour detection groove (111) and used for detecting whether the gap between the side wall of the contour detection groove (111) and the edge of the ceramic bulletproof inserting plate (900) to be detected is larger than a preset gap or not.
2. The contour detection structure for a ceramic bulletproof insert plate according to claim 1, wherein a bottom surface of the contour detection groove (111) is a detection surface (112);
the detection face (112) is recessed arcwall face, and be used for with the first face (910) that awaits measuring of ceramic bulletproof picture peg (900) support and hold, in order to place await measuring ceramic bulletproof picture peg (900) in during contour detection recess (111), be used for detecting ceramic bulletproof picture peg (900) that awaits measuring whether can to the contour detection recess (111) is interior or rock outward, thereby detect detection face (112) with the laminating condition of the first face (910) laminating of awaiting measuring, wherein, first face (910) that awaits measuring does the side of evagination is gone up to ceramic bulletproof picture peg (900) that awaits measuring.
3. The appearance detection structure for the ceramic bulletproof flashboard according to claim 2, wherein the detection surface (112) is provided with an observation hole (113), and the observation hole (113) penetrates through the contour detection piece (11) and is located at the bottom wall of the contour detection groove (111).
4. The appearance inspection structure for the ceramic bulletproof insert plate according to claim 3, wherein the observation holes (113) are arranged in a long strip shape, and the number of the observation holes (113) is multiple.
5. The contour detection structure for a ceramic bulletproof insert plate according to claim 1, wherein the side walls of the contour detection groove (111) are parallel to the opening direction of the contour detection groove (111).
6. The appearance inspection structure for the ceramic bulletproof inserting plate according to any one of claims 1 to 5, wherein the opening edge of the contour inspection groove (111) is extended in a curved shape so as to be used for inspecting whether the distance between the opening edge of the contour inspection groove (111) and the edge of a second surface to be inspected (920) in the opening direction of the contour inspection groove (111) is greater than a preset distance when the ceramic bulletproof inserting plate (900) to be inspected is placed in the contour inspection groove (111), wherein the second surface to be inspected (920) is a concave side surface on the ceramic bulletproof inserting plate (900) to be inspected.
7. The shape detection structure for the ceramic bulletproof insert plate according to any one of claims 1 to 5, wherein the shape detection structure (10) for the ceramic bulletproof insert plate further comprises a base (12), the contour detection part (11) is mounted on the top of the base (12), and the weight of the base (12) is greater than that of the ceramic bulletproof insert plate (900) to be detected.
8. The contour detection structure for a ceramic bulletproof gate according to claim 7, wherein the bottom of the base (12) is arranged obliquely so that the opening direction of the contour detection groove (111) forms an acute angle with the horizontal plane when the base (12) is placed on the horizontal plane.
9. The appearance detection structure for the ceramic bulletproof flashboard according to claim 7, wherein a pick-and-place groove (114) is further formed in the outline detection piece (11), the pick-and-place groove (114) is communicated with the outline detection groove (111), and the opening direction of the pick-and-place groove (114) is the same as the opening direction of the outline detection groove (111).
10. The contour detection structure for a ceramic bulletproof gate according to claim 9, wherein the pick-and-place groove (114) is located at one side of the contour detection groove (111) such that the pick-and-place groove (114) is higher than the contour detection groove (111) when the base (12) is placed on a horizontal plane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021412116.3U CN212300220U (en) | 2020-07-17 | 2020-07-17 | Appearance detection structure for ceramic bulletproof plugboard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021412116.3U CN212300220U (en) | 2020-07-17 | 2020-07-17 | Appearance detection structure for ceramic bulletproof plugboard |
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| CN212300220U true CN212300220U (en) | 2021-01-05 |
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| CN202021412116.3U Active CN212300220U (en) | 2020-07-17 | 2020-07-17 | Appearance detection structure for ceramic bulletproof plugboard |
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