CN219934923U - A kind of small hole diameter measuring ruler - Google Patents

Abstract

The utility model discloses a small hole diameter measuring ruler, which comprises: the measuring claw, measuring claw lower extreme fixed mounting has the fixed block, fixed block lower extreme fixed mounting has the slide bar, slide bar lower extreme fixed mounting has the stopper, stopper outer wall swing joint has the lantern ring slider, the lantern ring slider with the fixed block size equals, just the fixed block is located the upper end of lantern ring slider, the both ends of fixed block articulate there are four support one, and per two support one be a set of, two sets of support one is located the both ends of fixed block respectively, and per set of two the one opposite face's of support one end rotates to be connected, the both ends of lantern ring slider articulate there are four support two, and per two support two be a set of, two sets of support two are located the both ends of lantern ring slider respectively. This design increases screens device, makes aperture diameter measurement chi single hand operation, improves work efficiency.

Description

A kind of small hole diameter measuring ruler

Technical field

The utility model relates to the technical field of measuring tools, specifically a small hole diameter measuring ruler.

Background technique

In industrial production and laboratory research, there are a large number of requirements for measuring the internal aperture of pipe fittings. The channel aperture is mainly divided into direct measurement methods and indirect measurement methods. Direct measurement is mainly carried out through precision rulers and other tools, such as vernier calipers, cone rulers, needle gauges and plug gauges, etc. However, the direct measurement method is not suitable for the aperture or equivalent of slender tubes and needle bolt annular seam channels. Measurement of diameter. Indirect measurement methods mainly include optical methods and fluid calibration methods.

Existing tools for measuring the diameter of small holes, such as the model HT2-20RST, have no supporting structure during the measurement process. They require a hand-held tool and the object to be measured to perform the measurement, and the work efficiency is low.

Utility model content

The purpose of this utility model is to provide a small hole diameter measuring ruler to solve the problem of limited structure of carton processing and positioning tooling.

In order to achieve the above objectives, the present utility model provides the following technical solutions: including:

Measuring claw, a fixed block is fixedly installed at the lower end of the measuring claw, a sliding rod is fixedly installed at the lower end of the fixed block, a limiting block is fixedly installed at the lower end of the sliding rod, and a collar slider is movably connected to the outer wall of the limiting block. The collar slide block and the fixed block are equal in size, and the fixed block is located at the upper end of the collar slide block. There are four brackets hinged at both ends of the fixed block, and every two brackets are One group, two groups of brackets 1 are respectively located at both ends of the fixed block, and one end of the opposite surface of the two brackets in each group is rotationally connected, and four brackets 2 are hingedly connected to the two ends of the collar slider. , and every two brackets 2 form a group, and the two groups of brackets 2 are respectively located at both ends of the collar slider, and one end of the opposite surface of the two brackets in each group is rotationally connected, and the brackets The middle portions of one end of the opposite surfaces of brackets 1 and 2 are rotatably connected to fixed rotating rods 3, and the fixed rotating rods 3 are rotationally connected to the middle portions of two adjacent groups of brackets 1, and the fixed blocks correspond to One end of the first position of the bracket is fixedly connected to a fixed rotating rod, and each group of two brackets is rotatably connected to the surface of the fixed rotating rod. The collar slider corresponds to the second position of the bracket. One end is fixedly connected to a fixed rotating rod 2, and the two brackets 2 in each group are rotatably connected to the surface of the fixed rotating rod 2. A spring is movably connected to the outer wall of the sliding rod, and the upper end of the spring is connected to the fixed block. Fixed connection, the lower end of the spring is fixedly connected to the collar slider.

Preferably, anti-slip devices are provided at the left and right vertices of the diamond-shaped structure formed by the first bracket and the second bracket.

Preferably, the diameter of the limiting block is larger than the outer diameter of the sliding rod.

Preferably, the maximum distance formed by one end of any group of two brackets away from the position of the fixed block is greater than the maximum diameter of the circle where the measuring claw is located.

Preferably, the ring diameter of the spring is adapted to the diameter of the sliding rod.

Preferably, a measuring head is fixedly installed on the upper end of the measuring claw, a fixed sleeve is fixedly installed on the upper end of the measuring head, a micrometer cylinder is rotatably connected to the upper end of the fixed sleeve, and a force measuring device is rotatably connected to the upper end of the micron cylinder.

Compared with the existing technology, the beneficial effects of this utility model are:

1. When in use, insert the entire measuring tool into the hole to be measured. Bracket 1 and Bracket 2 shrink inward, driving the spring to stretch downward. The diamond-shaped structure formed by Bracket 1 and Bracket 2 has anti-slip measures on both sides and is stuck in the hole to be measured. In the inner wall of the cavity, you can adjust the force measuring device with one hand until the measuring claw touches the inner wall of the hole to be measured, and obtain the diameter of the hole to be measured based on the data displayed on the measuring ruler;

2. This design scheme adds a clamping device so that the small hole diameter measuring ruler can be operated with one hand and improves work efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of a small hole diameter measuring ruler of the present utility model;

Figure 2 is an enlarged view of position A of a small hole diameter measuring ruler according to the present invention;

Figure 3 is a schematic diagram 2 of the structure of a small hole diameter measuring ruler according to the present invention.

In the picture: 1. Measuring claw; 2. Measuring head; 3. Fixed sleeve; 4. Differential cylinder; 5. Force measuring device; 6. Fixed block; 7. Slider; 8. Limiting block; 9. Collar Slider; 10. Bracket one; 11. Bracket two; 12. Spring; 13. Fixed rotating rod one; 14. Fixed rotating rod two; 15. Fixed rotating rod three.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model.

Please refer to Figures 1-3. The present utility model provides a technical solution including:

Measuring claw 1, a fixed block 6 is fixedly installed at the lower end of the measuring claw 1, a sliding rod 7 is fixedly installed at the lower end of the fixed block 6, a limiting block 8 is fixedly installed at the lower end of the sliding rod 7, and a collar slider 9 is movably connected to the outer wall of the limiting block 8. , the collar slider 9 and the fixed block 6 are equal in size, and the fixed block 6 is located at the upper end of the collar slider 9. There are four brackets - 10 hinged at both ends of the fixed block 6, and every two brackets - 10 are a group , two sets of brackets 10 are respectively located at both ends of the fixed block 6, and one end of the opposite surface of the two brackets 10 in each group is rotationally connected. There are four brackets 211 hinged at both ends of the collar slider 9, and each two The two brackets 11 are a group. The two groups of brackets 11 are respectively located at both ends of the collar slider 9, and one end of the opposite surface of the two brackets 11 in each group is rotationally connected. The middle part of one end of the opposite surface of bracket one 10 and bracket two 11 The fixed rotating rods 15 are rotatably connected to each other, and the fixed rotating rods 15 are rotatably connected to the middle portions of the two adjacent brackets 10. One end of the fixed block 6 corresponding to the position of the brackets 10 is fixedly connected to the fixed rotating rod 13. , and each group of two brackets 10 are rotatably connected to the surface of the fixed rotating rod 13, and one end of the collar slider 9 corresponding to the position of bracket 2 11 is fixedly connected to a fixed rotating rod 2 14, and each group of two brackets 2 11 are all rotatably connected to the surface of the fixed rotating rod 2 14. The outer wall of the sliding rod 7 is movably connected with a spring 12. The upper end of the spring 12 is fixedly connected to the fixed block 6, and the lower end of the spring 12 is fixedly connected to the collar slider 9.

Anti-slip devices are provided at the left and right vertices of the diamond-shaped structure formed by the first bracket 10 and the second bracket 11.

The diameter of the limiting block 8 is larger than the outer diameter of the sliding rod 7 .

The maximum distance formed by the end of any set of two brackets 10 away from the fixed block 6 is greater than the maximum diameter of the circle where the measuring claw 1 is located.

The ring diameter of the spring 12 is adapted to the diameter of the slide rod 7 .

A measuring head 2 is fixedly installed on the upper end of the measuring claw 1, a fixed sleeve 3 is fixedly installed on the upper end of the measuring head 2, a differential cylinder 4 is rotatably connected to the upper end of the fixed sleeve 3, and a force measuring device 5 is rotatably connected to the upper end of the differential sleeve 4.

Working principle: When in use, insert the entire measuring tool into the hole to be measured. The first bracket 10 and the second bracket 11 shrink inward, driving the spring 12 to stretch downward. The diamond-shaped structure formed by the first bracket 10 and the second bracket 11 has two sides. The anti-slip measure is stuck in the inner wall of the hole to be measured. At this time, the force measuring device 5 can be adjusted with one hand until the measuring claw 1 touches the inner wall of the hole to be measured. The diameter of the hole to be measured can be obtained according to the data displayed on the measuring ruler. This design scheme adds a clamping device so that the small hole diameter measuring ruler can be operated with one hand and improves work efficiency.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that these entities or operations are mutually exclusive. any such actual relationship or sequence exists between them. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. , substitutions and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. A small hole diameter measuring ruler, comprising: a measuring claw (1), characterized in that: a fixed block (6) is fixedly provided at the lower end of the measuring claw (1), and a fixed block (6) is fixedly provided at the lower end of the fixed block (6). Slide rod (7), the lower end of the slide rod (7) is fixed with a limit block (8), the outer wall of the limit block (8) is movably connected with a collar slider (9), the collar slider (9) 9) is equal in size to the fixed block (6), and the fixed block (6) is located at the upper end of the collar slider (9). There are four brackets (10) hinged at both ends of the fixed block (6). ), and every two brackets (10) form a group, and two groups of brackets (10) are respectively located at both ends of the fixed block (6), and each group of two brackets (10) ) are rotationally connected at one end of the opposite surface, and four brackets (11) are hingedly connected to both ends of the collar slider (9), and every two brackets (11) form a group, and two groups of brackets are The two brackets (11) are respectively located at both ends of the collar slider (9), and one end of the opposite surface of the two brackets (11) in each group is rotationally connected. The bracket one (10) and the bracket two (11) The middle part of one end of the opposite surface is rotatably connected to three fixed rotating rods (15), and the three fixed rotating rods (15) are rotationally connected to the middle parts of two adjacent groups of two adjacent brackets one (10), so One end of the fixed block (6) corresponding to the position of the bracket (10) is fixedly connected to a fixed rotating rod (13), and each group of two brackets (10) is rotationally connected to the fixed rotating rod. On the surface of one (13), one end of the collar slider (9) corresponding to the position of the two brackets (11) is fixedly connected with two fixed rotating rods (14), and each set of two brackets (11) ) are rotatably connected to the surface of the fixed rotating rod (14). A spring (12) is movably connected to the outer wall of the sliding rod (7), and the upper end of the spring (12) is fixedly connected to the fixed block (6). , the lower end of the spring (12) is fixedly connected to the collar slider (9). 2. A small hole diameter measuring ruler according to claim 1, characterized in that anti-slip devices are provided at the left and right vertices of the diamond-shaped structure formed by the first bracket (10) and the second bracket (11). 3. A small hole diameter measuring ruler according to claim 1, characterized in that: the diameter of the limiting block (8) is larger than the outer diameter of the sliding rod (7). 4. A small hole diameter measuring ruler according to claim 1, characterized in that: the maximum distance formed by one end of any group of two brackets (10) away from the fixed block (6) is greater than the Measure the maximum diameter of the circle in which the claw (1) is located. 5. A small hole diameter measuring ruler according to claim 1, characterized in that: the ring diameter of the spring (12) matches the diameter of the sliding rod (7). 6. A small hole diameter measuring ruler according to claim 1, characterized in that: a measuring head (2) is fixedly provided at the upper end of the measuring claw (1), and a fixed measuring head (2) is fixedly provided at the upper end of the measuring head (2). Sleeve (3), the upper end of the fixed sleeve (3) is rotationally connected to a differential cylinder (4), and the upper end of the differential cylinder (4) is rotationally connected to a force measuring device (5).