WO2020233375A1 - 内尺寸游标卡尺 - Google Patents

内尺寸游标卡尺 Download PDF

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Publication number
WO2020233375A1
WO2020233375A1 PCT/CN2020/087801 CN2020087801W WO2020233375A1 WO 2020233375 A1 WO2020233375 A1 WO 2020233375A1 CN 2020087801 W CN2020087801 W CN 2020087801W WO 2020233375 A1 WO2020233375 A1 WO 2020233375A1
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Prior art keywords
vernier
caliper
caliper body
base
seat
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PCT/CN2020/087801
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English (en)
French (fr)
Inventor
陈利民
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金华市精工工具制造有限公司
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Publication of WO2020233375A1 publication Critical patent/WO2020233375A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B3/00—Measuring instruments characterised by the use of mechanical techniques
    • G01B3/20—Slide gauges

Definitions

  • the present invention relates to the technical field of measuring tools, in particular to an inner size vernier caliper.
  • Vernier caliper is a commonly used measuring instrument in the industry. It is a measuring tool for measuring length, inner and outer diameter, and depth.
  • the vernier caliper consists of a main ruler and a sliding vernier attached to the main ruler. There are two movable measuring claws on the main ruler and the vernier of the vernier caliper, namely the inner measuring claw and the outer measuring claw.
  • the inner measuring claw is usually used to measure the inner diameter
  • the outer measuring claw is usually used to measure the length and outer diameter.
  • L integer part + decimal part-zero error to determine which one on the cursor
  • Vernier calipers are widely used in production to measure the length, inner and outer diameter, depth, etc. of the product, but in the production process, it is usually necessary to measure whether the length and width of the product meet the design requirements.
  • Vernier calipers are widely used in production to measure the length, inner and outer diameter, depth, etc. of the product, but in the production process, it is usually necessary to measure whether the length and width of the product meet the design requirements.
  • the purpose of the present invention is to provide an inner size vernier caliper that can accurately measure the length and width of the product.
  • an inner size vernier caliper which includes a caliper body, a vernier base, and a measuring rod.
  • the measuring rod is slidably arranged in the caliper body, the caliper body is slidably arranged in the vernier base, and one end of the measuring rod is connected to the vernier base. The other end is fixedly connected and can slidably extend from the first end of the caliper body.
  • the caliper body and the vernier seat are respectively provided with a scale extending from the second end of the caliper body to the first end of the caliper body. The initial value of the scale at the end is equal to the length of the caliper body, and the initial value of the scale on the vernier base is 0.
  • the caliper body is provided with a caliper body groove, and the measuring rod is slidably arranged in the caliper body groove;
  • the vernier seat is provided with a vernier seat groove, and the caliper body is slidably arranged in the vernier seat groove.
  • a first vernier cover and a second vernier cover are respectively provided on both sides of the vernier base perpendicular to the sliding direction, and the scale on the vernier base is provided on the second vernier cover.
  • the first vernier cover and the second vernier cover are respectively fixedly connected to the vernier base by screws.
  • a tightening screw is also provided on the vernier base to adjust the sliding friction between the vernier base and the caliper body.
  • a spring sheet is also provided in the vernier seat, and the spring sheet is fixed to the vernier seat by a set screw.
  • the second end of the caliper body is provided with a limiting block, and the vernier base contacts the limiting block to limit the sliding of the vernier base to the second end.
  • the side of the limiting block away from the caliper body is perpendicular to the length direction of the caliper body.
  • the first end of the caliper body is provided with a limiting member for limiting the extension length of the measuring rod.
  • the caliper body groove penetrates at the first end, and the caliper body groove is closed at the second end to limit the measuring rod at the second end; the vernier seat groove penetrates both ends of the vernier seat.
  • the inner size vernier caliper provided by the embodiment of the present invention includes a caliper body, a vernier base and a measuring rod.
  • the measuring rod is slidably arranged in the caliper body, and the caliper body is slidably arranged in the vernier base. Sliding and protruding from the first end of the caliper body, the caliper body and the vernier base are respectively provided with scales extending from the second end of the caliper body to the first end, and the initial value of the scale on the second end of the caliper body is equal to the caliper
  • the length of the main body, the starting value of the scale on the vernier base is 0.
  • the inner size vernier caliper provided by the embodiment of the present invention can accurately measure the length and width of the workpiece, has a small space occupation, a reasonable and reliable structure, and a low manufacturing cost.
  • Fig. 1 is a schematic structural diagram of an inner-size vernier caliper provided by an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an exploded structure of an inner-size vernier caliper provided by an embodiment of the present invention
  • FIG. 3 is a schematic diagram of the main structure of a caliper provided by an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a second cursor cover provided by an embodiment of the present invention.
  • Fig. 5 is a schematic diagram of the inner dimension vernier caliper provided in an embodiment of the present invention during measurement.
  • Icon 10-internal size vernier caliper; 11- caliper body; 110-limiting block; 112- caliper body groove; 113- screw hole; 12- vernier seat; 121- vernier seat groove; 13- first vernier cover 14-Second Vernier Cover; 15-Tightening Screw; 16-Measuring Rod; 17-Tightening Screw; 18-Screw; 19-Spring Plate; 101-Limiting Piece; 20-Measurement Object.
  • horizontal and vertical do not mean that the component is required to be absolutely horizontal or overhang, but may be slightly inclined.
  • horizontal only means that its direction is more horizontal than “vertical”, it does not mean that the structure must be completely horizontal, but can be slightly inclined.
  • this embodiment provides an inner size vernier caliper 10, which includes a caliper body 11, a vernier base 12, a measuring rod 16, a spring sheet 19, a first vernier cover 13, a second vernier cover 14, and a tightening Screw 15, set screw 17, limit piece 101.
  • the measuring rod 16 is slidably arranged in the caliper body 11, and the caliper body 11 is slidably arranged in the vernier base 12.
  • One end of the measuring rod 16 is fixedly connected to the vernier base 12, and the other end is slidably extended from the first end of the caliper body 11.
  • the main body 11 and the vernier base 12 are respectively provided with a scale extending from the second end of the caliper body 11 to the first end.
  • the initial value of the scale on the second end of the caliper body 11 is equal to the length of the caliper body 11, and the vernier base 12
  • the initial value of the upper scale is 0. Starting from the initial scale of the second end and extending toward the first end, the scale values on the caliper body 11 and the vernier base 12 gradually increase.
  • the caliper body 11 is provided with a caliper body groove 112, and the measuring rod 16 slides in the caliper body groove 112.
  • the measuring rod 16 is fixed on the vernier base 12 and can be fixed by welding.
  • the vernier base 12 is provided with a vernier base recess. Groove 121, the vernier seat groove 121 penetrates both ends of the vernier seat 12, the caliper body 11 is slidably arranged in the vernier seat groove 121, the vernier seat 12 and the caliper body 11 slide relatively, when the vernier seat 12 slides, the measuring rod 16 is driven to slide together , So that the measuring rod 16 can extend out of the first end of the caliper body 11.
  • the caliper body groove 112 penetrates through at the first end, and the caliper body groove 112 is closed at the second end to limit the measuring rod 16 at the second end, so that the measuring rod 16 can only extend from the first end.
  • the side of the vernier base 12 is provided with a plurality of screw holes 113, the set screw 17 is installed on the vernier base 12, and the spring sheet 19 is put in.
  • the two ends of the spring sheet 19 are fixed by the set screw 17, using the elastic force of the spring sheet 19 Make the vernier base 12 and the caliper body 11 close.
  • a screw hole 113 is provided in the middle of the side of the vernier base 12 for installing the tightening screw 15.
  • a vernier seat groove 121 is provided in the middle of the front of the vernier seat 12, and the caliper body 11 and the spring piece 19 are installed in the vernier seat groove 121.
  • three screw holes 113 are provided on both sides of the front of the vernier base 12.
  • the second vernier cover 14 is provided with scales, and the first vernier cover 13 and the second vernier cover 13 Each vernier cover 14 is provided with three round holes.
  • the second vernier cover 14 is aligned with the screw hole 113 on the lower side of the vernier base 12 and fixed with screws 18, and the first vernier cover 13 is aligned with the screw on the upper side of the vernier base 12 Hole 113, fixed with screw 18.
  • the vernier base 12 is also provided with a tightening screw 15 for adjusting the sliding friction between the vernier base 12 and the caliper body 11.
  • a tightening screw 15 for adjusting the sliding friction between the vernier base 12 and the caliper body 11.
  • the second end of the caliper body 11 (in the left direction in FIG. 3) is provided with a limit block 110 for contacting the vernier base 12 with the limit block 110 to limit the sliding of the vernier base 12 to the second end.
  • the side of the limit block 110 away from the caliper body 11 is perpendicular to the length of the caliper body 11, that is, the side of the limit block 110 away from the caliper body 11 is a straight edge, which is used to fit the linear side inside the measurement object 20 , Easy to measure accurately.
  • the first end of the caliper body 11 (in the right direction in FIG. 3) is provided with a screw hole 113 for installing the limit piece 101.
  • the vernier base 12 slides between the limit piece 110 and the limit piece 101, and the limit piece 101 It can be a cylinder head screw, which is mainly used to limit the protruding length of the measuring rod 16. When a limit is required, the cylinder head screw is tightened to tighten the measuring rod 16 to limit the position.
  • the caliper body 11 is provided with scale lines.
  • the initial reading of the scale line is the same as the length of the caliper body 11.
  • the initial value of the scale is set at the second end of the caliper body 11 (the left side in Figure 1), the caliper body 11 and the vernier base 12
  • the reading on the scale gradually increases from the second end to the first end (from left to right in Figure 1).
  • the vernier base 12 is at the position of the limit block 110 on the left side of the caliper body 11, the end of the measuring rod 16 and the caliper body 11 Left aligned.
  • the vernier base 12 When the vernier base 12 is at the position of the limiting block 110 on the left side of the caliper body 11, the leftmost scale line of the second vernier cover 14 is aligned with the leftmost scale line of the caliper body 11. As shown in FIG. 5, the size measured by the present invention needs to be greater than the length of the caliper body 11. Place the left side of the caliper body 11 against the inner left side of the measuring object 20, and slide the vernier base 12 so that the measuring rod 16 contacts the inner right side of the measuring object 20.
  • the inner dimension vernier caliper 10 provided by the embodiment of the present invention can accurately measure the length dimension inside the workpiece, has a small space occupation, a reasonable and reliable structure, and a low manufacturing cost.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

本发明提供一种内尺寸游标卡尺，属于测量工具技术领域，内尺寸游标卡尺包括卡尺主体、游标座和测量杆，测量杆滑动设置在卡尺主体内，卡尺主体滑动设置在游标座内，测量杆的一端与游标座固定连接、另一端可滑动伸出于卡尺主体的第一端，卡尺主体和游标座上分别设有由卡尺主体的第二端向卡尺主体的第一端方向延伸的刻度，卡尺主体上第二端的刻度的起始值等于卡尺主体的长度，游标座上的刻度的起始值为0。本发明实施例提供的内尺寸游标卡尺能够精确测量工件内部的长度和宽度尺寸，占用空间小、结构合理可靠、制造成本低。

Description

内尺寸游标卡尺 技术领域
本发明涉及测量工具技术领域，具体而言，涉及一种内尺寸游标卡尺。
背景技术
游标卡尺是工业上常用的测量仪器，是一种测量长度、内外径、深度的量具，游标卡尺由主尺和附在主尺上能滑动的游标两部分构成。游标卡尺的主尺和游标上有两副活动量爪，分别是内测量爪和外测量爪，内测量爪通常用来测量内径，外测量爪通常用来测量长度和外径。
读数时首先以游标零刻度线为准在尺身上读取毫米整数，即以毫米为单位的整数部分。然后看游标上第几条刻度线与尺身的刻度线对齐，如第6条刻度线与尺身刻度线对齐，则小数部分即为0.6毫米(若没有正好对齐的线，则取最接近对齐的线进行读数)。如有零误差，则一律用上述结果减去零误差(零误差为负，相当于加上相同大小的零误差)，读数结果为：L＝整数部分+小数部分－零误差判断游标上哪条刻度线与尺身刻度线对准，可用下述方法：选定相邻的三条线，如左侧的线在尺身对应线之右，右侧的线在尺身对应线之左，中间那条线便可以认为是对准了L＝对准前刻度+游标上第n条刻度线与尺身的刻度线对齐×(乘以)分度值，如果需测量几次取平均值，不需每次都减去零误差，只要从最后结果减去零误差即可。
游标卡尺在生产中有广泛的应用，用于测量产品的长度、内外径、深度等，但是在生产过程中，通常还需要测量产品内部的长度和宽度尺寸是否满足设计需求。目前市场上没有一种能方便、精确的测量产品内部长度和宽度的工具。
发明内容
本发明的目的在于提供一种内尺寸游标卡尺，能够精确测量产品内部的长度和宽度的尺寸。
本发明的实施例是这样实现的：
本发明实施例的一方面提供一种内尺寸游标卡尺，其包括卡尺主体、游标座和测量杆，测量杆滑动设置在卡尺主体内，卡尺主体滑动设置在游标座内，测量杆的一端与游标座固定连接、另一端可滑动伸出于卡尺主体的第一端，卡尺主体和游标座上分别设有由卡尺主体的第二端向卡尺主体的第一端方向延伸的刻度，卡尺主体上第二端的刻度的起始值等于卡尺主体的长度，游标座上的刻度的起始值为0。
可选地，卡尺主体上设有卡尺主体凹槽，测量杆滑动设置在卡尺主体凹槽内；游标座上设有游标座凹槽，卡尺主体滑动设置在游标座凹槽内。
可选地，游标座上垂直于滑动方向的两侧分别设有第一游标盖板和第二游标盖板，游标座上的刻度设置于第二游标盖板上。
可选地，第一游标盖板和第二游标盖板分别通过螺丝与游标座固定连接。
可选地，游标座上还设有调紧螺丝，用于调节游标座与卡尺主体之间的滑动摩擦力。
可选地，游标座内还设有弹簧片，弹簧片通过紧定螺钉与游标座固定。
可选地，卡尺主体的第二端设有限位块，游标座与限位块接触限定游标座向第二端的滑动。
可选地，限位块上远离卡尺主体的侧边与卡尺主体的长度方向垂直。
可选地，卡尺主体的第一端设有限位件，用于限制测量杆的伸出长度。
可选地，卡尺主体凹槽在第一端贯通，卡尺主体凹槽在第二端封闭，以对测量杆在第二端限位；游标座凹槽贯通游标座的两端。
本发明实施例的有益效果包括：
本发明实施例提供的内尺寸游标卡尺包括卡尺主体、游标座和测量杆，测量杆滑动设置在卡尺主体内，卡尺主体滑动设置在游标座内，测量杆的一端与游标座固定连接、另一端可滑动伸出于卡尺主体的第一端，卡尺主体和游标座上分别设有由卡尺主 体的第二端向第一端的方向延伸的刻度，卡尺主体上第二端的刻度的起始值等于卡尺主体的长度，游标座上的刻度的起始值为0。本发明实施例提供的内尺寸游标卡尺能够精确测量工件内部的长度和宽度尺寸，占用空间小、结构合理可靠、制造成本低。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为本发明实施例提供的内尺寸游标卡尺结构示意图；
图2为本发明实施例提供的内尺寸游标卡尺爆炸结构示意图；
图3为本发明实施例提供的卡尺主体结构示意图；
图4为本发明实施例提供的第二游标盖板结构示意图；
图5为本发明实施例提供的内尺寸游标卡尺测量时的示意图。
图标:10-内尺寸游标卡尺；11-卡尺主体；110-限位块；112-卡尺主体凹槽；113-螺丝孔；12-游标座；121-游标座凹槽；13-第一游标盖板；14-第二游标盖板；15-调紧螺丝；16-测量杆；17-紧定螺钉；18-螺丝；19-弹簧片；101-限位件；20-测量物。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本发明实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本发明的实施例的详细描述并非旨在限制要求保护的本发明的范围，而是仅仅表示本发明的选定实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本发明的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
此外，“水平”、“竖直”等术语并不表示要求部件绝对水平或悬垂，而是可以稍微倾斜。如“水平”仅仅是指其方向相对“竖直”而言更加水平，并不是表示该结构一定要完全水平，而是可以稍微倾斜。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“设置”、“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。
请参照图1，本实施例提供一种内尺寸游标卡尺10，其包括卡尺主体11、游标座12、测量杆16、弹簧片19、第一游标盖板13、第二游标盖板14、调紧螺丝15、紧定螺钉17、限位件101。
测量杆16滑动设置在卡尺主体11内，卡尺主体11滑动设置在游标座12内，测量杆16的一端与游标座12固定连接、另一端可滑动伸出于卡尺主体11的第一端，卡尺主体11和游标座12上分别设有由卡尺主体11的第二端向第一端的方向延伸的刻度， 卡尺主体11上第二端的刻度的起始值等于卡尺主体11的长度，游标座12上的刻度的起始值为0，从第二端的起始刻度开始，向第一端方向延伸时，卡尺主体11和游标座12上的刻度值逐渐增大。
具体地，卡尺主体11设有卡尺主体凹槽112，测量杆16在卡尺主体凹槽112内滑动，测量杆16固定在游标座12上，可通过焊接固定，游标座12上设有游标座凹槽121，游标座凹槽121贯通游标座12的两端，卡尺主体11滑动设置在游标座凹槽121内，游标座12与卡尺主体11相对滑动，游标座12滑动时带动测量杆16一起滑动，使测量杆16能伸出卡尺主体11的第一端。
卡尺主体凹槽112在第一端贯通，卡尺主体凹槽112在第二端封闭，以对测量杆16在第二端限位，使测量杆16只能从第一端伸出。
游标座12侧边设有多个螺丝孔113，紧定螺钉17安装在游标座12上，放入弹簧片19，弹簧片19的两端被紧定螺钉17固定住，利用弹簧片19的弹力使游标座12与卡尺主体11靠紧。游标座12侧面靠中间位置设有螺丝孔113，用于安装调紧螺丝15。游标座12正面中间设有游标座凹槽121，卡尺主体11和弹簧片19安装在游标座凹槽121中。
示例地，如图2所示，游标座12的正面两边各设有3个螺丝孔113，如图4所示，第二游标盖板14上设有刻度，第一游标盖板13和第二游标盖板14各设有3个圆孔，第二游标盖板14对准游标座12下侧的螺丝孔113，用螺丝18固定，第一游标盖板13对准游标座12上侧的螺丝孔113，用螺丝18固定。
如图1所示，游标座12上还设有调紧螺丝15，用于调节游标座12与卡尺主体11之间的滑动摩擦力，当游标座12带动测量杆16伸到目标位置后，拧紧调紧螺丝15，使游标座12的位置不再偏移，能保证读数精准。
如图3所示，卡尺主体11的第二端(图3中左侧方向)设有限位块110，用于使游标座12与限位块110接触限定游标座12向第二端的滑动。限位块110上远离卡尺主体11的侧边与卡尺主体11的长度方向垂直，即限位块110远离卡尺主体11的侧边为直线边，用于能够贴合测量物20内部的直线侧边，便于精准测量。
卡尺主体11的第一端(图3中右侧方向)设有螺丝孔113，用于安装限位件101，游标座12在限位块110和限位件101之间滑动，限位件101可为圆柱头螺钉，主要用于限制测量杆16的伸出长度，当需要限位时，拧紧圆柱头螺钉以顶紧测量杆16用以限位。
卡尺主体11设有刻度线，刻度线的起始读数和卡尺主体11的长度相同，刻度起始值设置卡尺主体11的第二端(图1中左侧方向)，卡尺主体11和游标座12上的刻度读数从第二端向第一端方向(图1中从左向右方向)逐渐增大，游标座12位于卡尺主体11左侧限位块110位置时，测量杆16末端和卡尺主体11左侧对齐。当游标座12位于卡尺主体11左侧限位块110位置时，第二游标盖板14最左侧的刻度线和卡尺主体11最左侧的刻度线对齐。如图5所示，本发明测量的尺寸需要大于卡尺主体11的长度，将卡尺主体11的左侧贴紧测量物20内部左侧，滑动游标座12，使得测量杆16接触测量物20内部右侧，拧紧调紧螺丝15，取出内尺寸游标卡尺10，读取此时内尺寸游标卡尺10上的读数，因为卡尺主体11上的刻度线的起始读数和卡尺主体11的长度相同，则此时测量物20内部的尺寸就等于卡尺主体11的长度加上测量杆16的伸出长度，卡尺主体11的长度已经能直接从卡尺主体11的起始刻度读出，即最后读数的整数部分，测量杆16的伸出长度就是此时游标座12上的对应刻度，由该刻度得出最后读数的小数部分，将整数部分和小数部分相加即得到测量物20内部的长度尺寸，完成测量。
本发明实施例提供的内尺寸游标卡尺10，能够精准测量工件内部的长度尺寸，占用空间小、结构合理可靠、制造成本低。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (10)

  1. 一种内尺寸游标卡尺，包括卡尺主体、游标座和测量杆，所述测量杆滑动设置在卡尺主体内，所述卡尺主体滑动设置在所述游标座内，所述测量杆的一端与所述游标座固定连接、另一端可滑动伸出于所述卡尺主体的第一端，所述卡尺主体和所述游标座上分别设有由所述卡尺主体的第二端向所述卡尺主体的第一端方向延伸的刻度，其特征在于，所述卡尺主体上第二端的刻度的起始值等于所述卡尺主体的长度，所述游标座上的刻度的起始值为0。
  2. 根据权利要求1所述的内尺寸游标卡尺，其特征在于，所述卡尺主体上设有卡尺主体凹槽，所述测量杆滑动设置在所述卡尺主体凹槽内；所述游标座上设有游标座凹槽，所述卡尺主体滑动设置在所述游标座凹槽内。
  3. 根据权利要求1所述的内尺寸游标卡尺，其特征在于，所述游标座上垂直于滑动方向的两侧分别设有第一游标盖板和第二游标盖板，所述游标座上的刻度设置于所述第二游标盖板上。
  4. 根据权利要求3所述的内尺寸游标卡尺，其特征在于，所述第一游标盖板和所述第二游标盖板分别通过螺丝与所述游标座固定连接。
  5. 根据权利要求1所述的内尺寸游标卡尺，其特征在于，所述游标座上还设有调紧螺丝，用于调节所述游标座与所述卡尺主体之间的滑动摩擦力。
  6. 根据权利要求1所述的内尺寸游标卡尺，其特征在于，所述游标座内还设有弹簧片，所述弹簧片通过紧定螺钉与所述游标座固定。
  7. 根据权利要求1所述的内尺寸游标卡尺，其特征在于，所述卡尺主体的第二端设有限位块，所述游标座与所述限位块接触限定所述游标座向第二端的滑动。
  8. 根据权利要求7所述的内尺寸游标卡尺，其特征在于，所述限位块上远离所述卡尺主体的侧边与卡尺主体的长度方向垂直。
  9. 根据权利要求1所述的内尺寸游标卡尺，其特征在于，所述卡尺主体的第一端设有限位件，用于限制所述测量杆的伸出长度。
  10. 根据权利要求2所述的内尺寸游标卡尺，其特征在于，所述卡尺主体凹槽在所述第一端贯通，所述卡尺主体凹槽在所述第二端封闭，以对所述测量杆在所述第二端限位；所述游标座凹槽贯通所述游标座的两端。
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