CN214747696U

CN214747696U - Portable aperture caliber

Info

Publication number: CN214747696U
Application number: CN202121402203.5U
Authority: CN
Inventors: 陆涛; 王炬峰; 王正兴; 陈宇锋; 朱明峰
Original assignee: Changzhou College of Information Technology CCIT
Current assignee: Changzhou College of Information Technology CCIT
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-11-16
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to the technical field of aperture measuring devices, in particular to a portable aperture measuring device, which comprises a display screen, an extension rod, a sensor which is arranged on the extension rod and is electrically connected with the display screen through an electric wire, a connecting piece connected with the bottom of the extension rod and an inner diameter dial indicator arranged on the connecting piece; the utility model discloses a small-size infrared range finder who establishes in the thermal-insulated handle, make when measuring the part hole that the aperture surpassed the internal diameter percentage table range, can open stereoplasm location strip, and after the thermal-insulated handle removed the mobile jib lower extreme from the mobile jib upper end, utilize the three horn-shaped structure that two stereoplasm location strips and thermal-insulated gum cover are constituteed, let small-size infrared range finder align with the inside centre of a circle in aperture, thereby accurate measure the distance between small-size infrared range finder and the aperture inside, at last the diameter of thermal-insulated gum cover is the aperture this moment in addition, the application scope is wider and makes things convenient for the staff operation.

Description

Portable aperture caliber

Technical Field

The utility model relates to an aperture caliber technical field specifically is a portable aperture caliber.

Background

The pore diameter measurement is an indispensable step for detecting holes arranged in parts and controlling the production quality of the parts in the production process of the parts, and the prior patent comprises the following steps: a portable device for measuring the diameter of a screw bore (patent number: CN 201320397814.4) discloses a technology which can detect the diameter of the screw bore with large depth by combining an extension rod with an inner diameter dial indicator, and has the functions of adjustable length at any time, convenient operation, digital display and accurate measurement. However, when the hole diameter of the part exceeds the range of the inner diameter dial indicator, the inner diameter dial indicator cannot be used, an operator needs to prepare a measuring device for measurement, and the application range is narrow.

SUMMERY OF THE UTILITY MODEL

The utility model provides a to prior art not enough, the utility model provides a portable aperture caliber possesses measuring range wider, and the bigger advantage of institute's applicable face has solved current portable aperture measuring device and has often received the restriction of internal diameter percentage table range, to the inside unable measurement of hole in great aperture, the narrower problem of applicable face.

The portable aperture measuring device of the utility model comprises a display screen, an extension rod, a sensor arranged on the extension rod and electrically connected with the display screen through an electric wire, a connecting piece connected with the bottom of the extension rod, and an inner diameter dial indicator arranged on the connecting piece, wherein the inner diameter dial indicator comprises a main rod, a measuring head arranged at the bottom of the main rod, and a heat insulation handle in threaded connection with the upper end of the main rod, the heat insulation handle comprises a heat insulation rubber sleeve, two sides of the heat insulation rubber sleeve are respectively provided with a containing groove, the inner wall of each containing groove is articulated with a movable block capable of horizontally rotating through a spring hinge, the top of the movable block is articulated with a hard positioning strip capable of vertically and transversely rotating through a damping hinge, the surface of the heat insulation rubber sleeve is fixedly connected with a small infrared distance measuring instrument, the small infrared distance measuring instrument is electrically connected with the display screen through an electric wire, the surface shell of the small infrared distance measuring instrument is provided with a C-shaped clamp, elastic support bars are fixedly connected to the two sides of the C-shaped clamp, and insertion holes for the elastic support bars to be inserted are formed in the surface of the movable block.

Through the design of the technical scheme, through the small-size infrared distance measuring instrument who establishes in the thermal-insulated handle, make when measuring the part hole that the aperture surpassed the internal diameter percentage table range, can open stereoplasm location strip, and with thermal-insulated handle from mobile jib upper end to mobile jib lower extreme after, utilize two stereoplasm location strips and the triangle-shaped structure that thermal-insulated gum cover is constituteed, let small-size infrared distance measuring instrument can align with the inside centre of a circle in aperture, thereby accurate measure the distance between small-size infrared distance measuring instrument and the aperture inside, last including the diameter of thermal-insulated gum cover promptly the aperture this moment, the application scope is wider and makes things convenient for staff's operation.

As the utility model discloses a further improvement, the equal threaded connection in both sides of C clamp has fixing bolt, and small-size infrared distance meter casing upper surface all sets up the screw hole that supplies fixing bolt to twist with the lower surface, fixing bolt's positive fixedly connected with twists the board, and the C clamp is the slant setting with small-size infrared distance meter casing surface screw hole of establishing.

Through the design of the technical scheme, through C clamp and fixing bolt for can strut two stereoplasm location strips when needs fix a position small-size infrared range finder, can fix the tail end of elastic support bar via C clamp and fixing bolt, thereby guarantee that the elastic support bar can provide sufficient elasticity for stereoplasm location strip, guarantee that two stereoplasm location strips receive the same and sufficient thrust, make things convenient for subsequent location operation.

As a further improvement, the hard positioning strip and the surface of the heat insulation rubber sleeve are provided with jacks matched with the elastic supporting strips.

Through the design of the technical scheme, when the hard positioning strip is not needed, the elastic support strip can be stably and firmly inserted into the jack on the retracted hard positioning strip through the C-shaped clamp and the fixing bolt, and normal use of the measuring head is facilitated.

As a further improvement, the bottom of the hard positioning strip is provided with a limiting bulge, and when the hard positioning strip rotates downwards to the lowest part, a ninety-degree included angle is formed between the hard positioning strip and the movable block.

Through the design of the technical scheme, the stability of the small infrared distance measuring instrument for positioning can be ensured after the subsequent hard positioning strip is opened by limiting the movable angle of the hard positioning strip.

As a further improvement, the top fixedly connected with location inserted block of gauge head, the jack with location inserted block looks adaptation is seted up to the bottom of thermal-insulated gum cover.

Through the design of the technical scheme, the positioning insertion block is arranged, so that the heat insulation rubber sleeve can not move randomly when moving to the bottom of the main rod, and the small infrared distance meter can be aligned to the center of the hole.

As a further improvement, small-size infrared distance meter includes from last to setting gradually battery case, switch, logic control unit, direction finding unit, modulation light emission unit and the receiving element in its casing inside down, the front of battery case is equipped with the lid of joint on the battery case surface, and the inside of battery case is equipped with seven batteries.

Through the design of the technical scheme, the small infrared distance measuring instrument can ensure that the normal use of the measuring head is prevented from being influenced by overlarge volume while the distance measuring function is achieved.

As a further improvement, the front and back of the heat insulation rubber sleeve are provided with two symmetrical hemispherical bulges.

Through the design of the technical scheme, the hard positioning strip can be matched to play a certain positioning role through the two hemispherical bulges, so that the subsequent measurement is facilitated.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a small-size infrared range finder who establishes in the thermal-insulated handle, make when measuring the part hole that the aperture surpassed the internal diameter percentage table range, can open stereoplasm location strip, and after the thermal-insulated handle removed the mobile jib lower extreme from the mobile jib upper end, utilize the three horn-shaped structure that two stereoplasm location strips and thermal-insulated gum cover are constituteed, let small-size infrared range finder align with the inside centre of a circle in aperture, thereby accurate measure the distance between small-size infrared range finder and the aperture inside, at last the diameter of thermal-insulated gum cover is the aperture this moment in addition, the application scope is wider and makes things convenient for the staff operation.

2. The utility model discloses a C clamp and fixing bolt, make can strut two stereoplasm location strips when needs fix a position small-size infrared range finder, can fix the tail end of elastic support bar via C clamp and fixing bolt, thereby guarantee that the elastic support bar can provide sufficient elasticity for stereoplasm location strip, guarantee that two stereoplasm location strips receive the same and sufficient thrust, make things convenient for subsequent location operation, and when need not use stereoplasm location strip, also can be through C clamp and fixing bolt with the stable and firm the inserting of elastic support bar in the jack on the stereoplasm location strip of packing up, make things convenient for the normal use of gauge head.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a front cross-sectional structure of the present invention;

FIG. 2 is a schematic front sectional view of the insulated handle;

FIG. 3 is a schematic side sectional view of a small infrared range finder;

FIG. 4 is a schematic view of a top-down structure of an inside diameter dial gauge.

In the figure: 1. a display screen; 2. an extension pole; 3. a sensor; 4. a connecting member; 5. an inner diameter dial indicator; 51. a main rod; 52. a measuring head; 53. a thermally insulated handle; 531. a heat insulation rubber sleeve; 532. a movable block; 533. hard positioning strips; 534. a small infrared range finder; 5341. a battery case; 5342. a logic control unit; 5343. a direction-finding unit; 5344. a modulated light emitting unit; 5345. a receiving unit; 535. c-shaped clamp; 536. an elastic support bar; 537. fixing the bolt; 538. screwing a plate; 54. and positioning the insert block.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-4, the portable aperture measuring device of the present invention comprises a display screen 1, an extension rod 2, a sensor 3 mounted on the extension rod 2 and electrically connected to the display screen 1 through an electric wire, and an inner diameter dial indicator 5 mounted on a connecting member 4 and a connecting member 4 connected to the bottom of the extension rod 2, wherein the inner diameter dial indicator 5 comprises a main rod 51, a measuring head 52 mounted on the bottom of the main rod 51, and a heat insulation handle 53 screwed to the upper end of the main rod 51, the heat insulation handle 53 comprises a heat insulation rubber sleeve 531, both sides of the heat insulation rubber sleeve 531 are provided with storage grooves, the inner wall of each storage groove is hinged to a horizontally rotatable movable block 532 through a spring hinge, the top of the movable block 532 is hinged to a vertically and horizontally rotatable hard positioning bar 533 through a damping hinge, the surface of the heat insulation rubber sleeve 531 is fixedly connected to a small infrared distance meter 534, the small infrared distance meter 534 is electrically connected to the display screen 1 through an electric wire, the surface shell of the small infrared range finder 534 is provided with a C-shaped clamp 535, two sides of the C-shaped clamp 535 are fixedly connected with elastic support bars 536, and the surface of the movable block 532 is provided with a jack for inserting the elastic support bars 536.

Through the small infrared distance measuring instrument 534 arranged in the heat insulation handle 53, when a part hole with the aperture exceeding the inner diameter dial indicator range 5 is measured, the hard positioning strip 533 can be opened, the heat insulation handle 53 is moved to the lower end of the main rod 51 from the upper end of the main rod 51, the triangular structure formed by the two hard positioning strips 533 and the heat insulation rubber sleeve 531 is utilized, the small infrared distance measuring instrument 534 can be aligned with the circle center inside the aperture, the distance between the small infrared distance measuring instrument 534 and the inside of the aperture can be accurately measured, the aperture at the moment is the diameter of the heat insulation rubber sleeve 531, the application range is wider, and the operation of workers is facilitated.

Both sides of the C-shaped clamp 535 are in threaded connection with fixing bolts 537, the upper surface and the lower surface of the shell of the small infrared range finder 534 are provided with threaded holes for screwing the fixing bolts 537, the front surface of the fixing bolts 537 is fixedly connected with a screwing plate 538, and the C-shaped clamp 535 and the threaded holes arranged on the surface of the shell of the small infrared range finder 534 are obliquely arranged.

Through C clamp 535 and fixing bolt 537, when two hard positioning bars 533 need to be strutted to position small infrared range finder 534, the tail end of elastic support bar 536 can be fixed through C clamp 535 and fixing bolt 537, so as to ensure that elastic support bar 536 can provide enough elasticity for hard positioning bars 533, ensure that two hard positioning bars 533 receive the same and enough thrust, and facilitate subsequent positioning operation.

The hard positioning strips 533 and the heat insulation rubber sleeve 531 are provided with insertion holes matched with the elastic supporting strips 536 on the surfaces.

When the hard positioning bar 533 is not needed, the elastic support bar 536 can be stably and firmly inserted into the insertion hole on the folded hard positioning bar 533 through the C-shaped clip 535 and the fixing bolt 537, which facilitates the normal use of the measuring head 52.

The bottom of the hard positioning strip 533 is provided with a limiting protrusion, and when the hard positioning strip 533 rotates downwards to the lowest position, an included angle of ninety degrees is formed between the hard positioning strip 533 and the movable block 532.

By limiting the movable angle of the hard positioning bar 533, the stability of the small infrared range finder 534 can be ensured after the subsequent hard positioning bar 533 is opened.

The top of the measuring head 52 is fixedly connected with a positioning insertion block 54, and the bottom of the heat insulation rubber sleeve 531 is provided with a jack matched with the positioning insertion block 54.

Through setting up location inserted block 54 for can guarantee that thermal-insulated gum cover 531 when removing the mobile jib 51 bottom, can not move about at will, and guarantee that small-size infrared range finder 534 can aim at the center of hole.

The small infrared range finder 534 comprises a battery box 5341, a switch, a logic control unit 5342, a direction finding unit 5343, a modulated light emitting unit 5344 and a receiving unit 5345 which are arranged in the casing of the small infrared range finder from top to bottom in sequence, wherein the front surface of the battery box 5341 is provided with a box cover clamped on the surface of the battery box 5341, and a No. seven battery is arranged in the battery box 5341.

The small infrared distance measuring instrument 534 can ensure the distance measuring function and avoid the influence of overlarge volume on the normal use of the measuring head 52.

Two mutually symmetrical hemispherical bulges are arranged on the front back surface of the heat insulation rubber sleeve 531.

Through the two hemispherical bulges, the hard positioning strip 533 can be matched to play a certain positioning role, so that subsequent measurement is facilitated.

When using the utility model discloses the time: if a hole with a diameter exceeding the range of the measuring head 52 is encountered, the heat insulation handle 53 can be screwed, the heat insulation handle 53 is not tightly connected to the upper end of the main rod 51 any more, the heat insulation handle 53 is pulled downwards, the positioning insertion block 54 on the measuring head 52 can be inserted into the insertion hole at the bottom of the heat insulation rubber sleeve 531, then the fixing bolt 537 is unscrewed, the elastic support bar 536 is taken out from the hard positioning bar 533 through the C-shaped clamp 535, then the hard positioning bar 533 is unfolded to be perpendicular to the movable block 532, then the elastic support bar 536 is inserted into the corresponding insertion groove on the movable block 532, the C-shaped clamp 535 is installed on the shell of the small infrared distance measuring instrument 534 again through the fixing bolt 537, the switch of the small infrared distance measuring instrument 534 is opened, the heat insulation handle 53 is integrally placed in the hole, after the two hard positioning bars 533 are contacted with the hole wall, the main rod 51 is slowly moved to make the two hemispherical bulges on the back of the heat insulation rubber sleeve 531 contact with the hole wall, at this time, the data measured by the small infrared distance meter 534 and the diameter of the heat insulation rubber sleeve 531 are the aperture in the hole, and the data at this time can be observed in the display screen 1, so that the use by an operator is facilitated.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. The utility model provides a portable aperture caliber, includes display screen (1), extension rod (2), installs on extension rod (2) and through sensor (3) that electric wire and display screen (1) electricity are connected, connecting piece (4) and connecting piece (4) that extension rod (2) bottom is connected on internal diameter percentage table (5) of installation, its characterized in that: the inner diameter dial indicator (5) comprises a main rod (51), a measuring head (52) arranged at the bottom of the main rod (51) and a heat insulation handle (53) in threaded connection with the upper end of the main rod (51);

the heat insulation handle (53) comprises a heat insulation rubber sleeve (531), two sides of the heat insulation rubber sleeve (531) are provided with accommodating grooves, the inner wall of each accommodating groove is hinged with a movable block (532) capable of horizontally rotating through a spring hinge, and the top of each movable block (532) is hinged with a hard positioning strip (533) capable of vertically and transversely rotating through a damping hinge;

the fixed surface of thermal-insulated gum cover (531) is connected with small-size infrared range finder (534), small-size infrared range finder (534) are connected with display screen (1) electricity through the electric wire, the surperficial casing of small-size infrared range finder (534) is installed C and is pressed from both sides clamp (535), the equal fixedly connected with elastic support bar (536) in both sides that C pressed from both sides clamp (535), the surface of movable block (532) is seted up and is supplied elastic support bar (536) male jack.

2. The portable aperture measurer according to claim 1, wherein: both sides of the C-shaped clamp (535) are in threaded connection with fixing bolts (537), and the upper surface and the lower surface of the shell of the small infrared range finder (534) are provided with threaded holes for screwing the fixing bolts (537).

3. The portable aperture measurer according to claim 2, wherein: the front surface of the fixing bolt (537) is fixedly connected with a screwing plate (538), and the C-shaped clamp (535) and a threaded hole formed in the surface of the shell of the small infrared range finder (534) are obliquely arranged.

4. The portable aperture measurer according to claim 1, wherein: the surfaces of the hard positioning strips (533) and the heat insulation rubber sleeves (531) are provided with jacks matched with the elastic supporting strips (536).

5. The portable aperture measurer according to claim 1, wherein: the bottom of the hard positioning strip (533) is provided with a limiting bulge, and when the hard positioning strip (533) rotates downwards to the lowest position, an included angle of ninety degrees is formed between the hard positioning strip (533) and the movable block (532).

6. The portable aperture measurer according to claim 1, wherein: the top of the measuring head (52) is fixedly connected with a positioning insertion block (54), and the bottom of the heat insulation rubber sleeve (531) is provided with a jack matched with the positioning insertion block (54).

7. The portable aperture measurer according to claim 1, wherein: the small infrared range finder (534) comprises a battery box (5341), a switch, a logic control unit (5342), a direction finding unit (5343), a modulation light emitting unit (5344) and a receiving unit (5345) which are sequentially arranged in the shell of the small infrared range finder from top to bottom.

8. The portable aperture measurer according to claim 7, wherein: the front surface of the battery box (5341) is provided with a box cover clamped on the surface of the battery box (5341), and a number seven dry battery is arranged inside the battery box (5341).

9. The portable aperture measurer according to claim 1, wherein: two hemispherical bulges which are symmetrical to each other are arranged on the front back surface of the heat insulation rubber sleeve (531).