TWI724520B - Screw measuring tool - Google Patents

Abstract

A screw measuring tool used to measure the length of the screw body. The screw gauge contains a gauge book Body and a measuring body. The main body of the scale includes a display portion and a telescopic view toward the bottom of the display portion The measuring head is functional and has a contact end at the bottom. The measuring body includes a base and a side facing the base And corresponding to the locking part fixed by the measuring head sleeve, and a protruding and protruding toward the outer side of the bottom end of the seat body A probe that forms a point contact with the contact end. Wherein the base has a containing groove for the measuring head cover and Toward the bottom end of the seat body is provided with a flat bottom end surface that penetrates the accommodating groove and penetrates to the bottom end of the seat body The insertion hole for the screw body to be inserted and the screw head to abut the flat bottom end surface to And for the probe to act. The measurement body uses the insertion hole and the probe to form a point with the contact end Touch to accurately display the length of the screw body from the display part.

Description

Screw measuring tool

The invention relates to a measuring tool, in particular to a screw measuring tool for measuring the length of the screw body.

The length of the screw body of the existing screw is measured, please refer to the figure 1 shown, most of which use electronic calipers1. The upper end and the lower end of the electronic caliper 1 are respectively provided with two corresponding first measuring claws 11, 12 and a second measuring claw 13, 14 for measuring the length of the screw body respectively. However, when the electronic caliper 1 is designed to measure the size of the small screw 2 with a smaller length of the screw body 21, the display part 151 of the liquid crystal digital display system 15 mainly displays the metric system to two digits after the decimal point, and the inch system can The measurement value displayed to four digits after the decimal point, the accuracy of measuring the small screw 2 is greatly improved compared with the existing non-electronic calipers. Furthermore, since the length of the screw body 21 of the small screw 2 generally does not exceed 1 cm, that is, 10 mm, when the electronic caliper 1 is used for measurement, one of the first measuring claws 11 at the upper end of the electronic caliper 1 can only The single piece abuts against the inner side of the screw head 22 of the small screw 2, and the other first measuring claw 12 at the upper end is visually measured to the bottom end of the screw body 21 of the small screw 2. Moreover, when the electronic caliper 1 uses one of the second measuring claws 13 at the lower end to abut above the inner side of the screw head 22 of the small screw 2, and the other second measuring claw 14 at the lower end is visually measured at The screw body 21 of the small screw 2 is above the bottom end. Therefore, when the other first measuring claw 12 and the other second measuring claw 14 of the electronic caliper 1 are visually measured, the screw body 21 of the small screw 2 held by the hand is prone to shake, so that the screw body 21 of the small screw 2 is easily shaken by the measurement. The numbers displayed by the display portion 151 are likely to cause garbled characters, and their accuracy is not good.

Therefore, the first measuring claws 11, 12 at the upper end of the electronic caliper 1 and the second measuring claws 13, 14 at the lower end of the electronic caliper 1 for measuring the length of the screw body 21 of the small screw 2 are in the process of measuring. Only in that small screw The inner side of the screw head 22 of 2 has one of the first measuring claws 11 and one of the second measuring claws 13 above the inner side of the screw head 22 of the small screw 2, and the other of the electronic caliper 1 One first measuring claw 12 and the other second measuring claw 14 measure the small screw 2 without abutment point and can only be measured visually, which makes it easy for the measuring hand to hold the screw body 21 of the small screw 2 Problems such as shaking and easy to make the accuracy of the measurement inaccurate.

The main purpose of the present invention is to solve the problem that the first measuring claws at the upper end and the second measuring claws at the lower end of the existing electronic caliper measure the length of the screw body of the small screw, so that the first measuring claws and the second measuring claws There is no abutment point between the second measuring claw and the screw body of the small screw, causing the screw body of the small screw held by the hand to shake and the accuracy of the measurement is easy to be unreliable. situation.

To achieve the above objective, the present invention provides a screw measuring tool for measuring the length of the screw body. The screw measuring tool includes a gauge body and a measuring body. The main body of the scale includes a display part and a measuring head with a telescopic function facing the lower part of the display part and a contact end is arranged at the end. The measuring body includes a base, a side facing the base and a locking portion corresponding to the sleeve and fixing of the measuring head, and a probe protruding toward the outside of the bottom end of the base; wherein the base The body has an accommodating groove for the measuring head cover, and an insertion hole that penetrates the accommodating groove and penetrates to the bottom end of the seat is provided with a flat bottom end surface facing the bottom end of the seat body for supplying The screw body of the screw is inserted and the screw head of the screw abuts against the flat bottom end surface of the seat body, and the probe is actuated to form a point contact with the contact end of the measuring head. The display part shows the length of the screw body.

Furthermore, one side of the seat body is provided with an internal screw hole; wherein, the locking portion has an external thread section screwed and fixed to the internal screw hole.

Furthermore, the probe is provided with a head end that abuts against the insertion hole of the seat body, and a vertical rod that extends toward one end of the head end and moves up and down in the insertion hole of the seat body, The end of the vertical rod forms a contact end which protrudes from the outer side of the bottom end of the insertion hole.

Furthermore, the outer diameter of the tip end of the probe is larger than the inner diameter of the insertion hole in the bottom end of the seat body.

Furthermore, the total length of the head end and the upright rod of the probe is longer than the length of the insertion hole of the seat body.

Furthermore, the gauge body further includes an adjustment group disposed on the outer periphery of the side of the display portion, and the adjustment group is provided with a fixing seat connected and adjacent to the outer periphery of the display portion, and an adjustment group disposed on the outer periphery of the display portion. The fixing seat and the inside of the display part are provided with adjustment buttons for adjusting the position of the display part.

Furthermore, the display part is a pointer type or an electronic digital type.

It can be seen from the above description that the present invention has the following characteristics:

1. Use the insertion hole of the measuring body in the screw measuring tool, and also use the point contact design of the probe and the measuring head to accurately display the small screw that does not exceed 1 cm, that is, 10 mm. The length of the screw body or the screw body length of the screw more than 1 cm will not cause the problem of shaking the hand when the small screw is measured.

2. It is suitable for the meter body to display the length of the small screw through the display part. The measuring head can also be used to have the contact end of the probe contacting the probe to prevent the small screw from being in contact with the probe. The holding measurement shakes and slips off, and the small screw can accurately display the actual number on the display part.

(existing)

1: Electronic caliper

11, 12: the first measuring claw

13, 14: second measuring claw

15: LCD digital display system

151: Display

2: small screw

21: snail

22: Screw head

(this invention)

3: Screw measuring tool

4: The scale body

41: Display

411: small display ring

4111: small pointer

4112: Number

412: large display ring

4121: Big pointer

4122: number

42: Measuring head

420: convex joint

421: contact end

43: adjustment group

431: fixed seat

432: Adjustment Button

5: Measure the body

50: bottom

51: Block

510: Internal screw hole

511: accommodating slot

512: Insert hole

513: Flat bottom end surface

52: Locking part

521: External thread section

53: Probe

531: head end

532: Pole

533: contact end

6: Small screw

61: Spiral Body

62: screw head

7: plane

Figure 1: A schematic diagram of measuring the length of the screw body of a small screw with an existing electronic caliper.

Figure 2: The front view of the screw measuring tool of the present invention.

Figure 3: An exploded view of the assembly of the measurement body in Figure 2.

Figure 4: A combined perspective view of the measurement body in Figure 2.

Figure 5: It is a schematic diagram of the measurement body and the meter body set in the second figure.

Figure 6: It is a schematic diagram of the operation of returning the large and small pointers inside the screw gauge adjustment display unit in Figure 2 to zero (1).

Figure 7: It is a schematic diagram of the action of returning the large and small pointers inside the screw gauge adjustment display unit to zero in Figure 2 (2).

Figure 8: It is a schematic diagram of the screw body length of a small screw that the screw measuring tool in Figure 2 wants to measure.

Figure 9: It is the front view of Figure 2 to measure the length of the screw body of the small screw and the measured value displayed on the display.

In order to enable your members to have a deeper understanding and recognition of the features, purposes and effects of the present invention, a preferred embodiment is enumerated and illustrated in conjunction with the drawings as follows:

Please refer to Figures 2 and 3 and Figures 4 and 5. The present invention provides a screw measuring tool 3 for measuring the length of the screw body. The screw measuring tool 3 includes a gauge body 4 and a measuring body 5. The screw measuring tool 3 of the present invention can measure the length of the screw body 61 of the small screw 6 not to exceed 1 cm, that is, 10 mm, and replace the measuring body 5 with the length of the screw body 61 of the small screw 6. The screw measuring tool 3 of the present invention can also measure the length of the screw body more than 1 cm. The measuring body 5 can be used for the screw body length of more than 1 cm.

In the embodiment of this case, as disclosed in Figures 2 and 3 and Figures 4 and 5, the screw measuring tool 3 is used to measure the length of the screw body 61 of the small screw 6 for use in the following description:

The meter body 4 includes a display portion 41, and a protruding portion 420 extending toward one end of the meter body 4, and a telescopic measuring head 42 with a telescopic function is provided under the protruding portion 420. The end of the head 42 has a contact end 421. Wherein, the display portion 41 is set in a pointer type or an electronic digital type. In this embodiment, the display portion 41 adopts a pointer type and the unit is mm. The upper surface of the display portion 41 is provided with a small display ring 411 for the measurement value of the single digit before the decimal point. The small display ring 411 is provided with a small pointer 4111 and a number 4112 marked from 0 to 9 by the scales, and is provided on the circumference above the display portion 41 There is a large display ring 412 with a measurement value of two digits after the decimal point. The large display ring 412 is provided with a large pointer 4121 and a number 4122 marked from 0 to 90 by each scale.

Please refer particularly to Figures 2 and 7, for a more detailed description, the meter body 4 further includes an adjustment group 43 on the outer periphery facing the side of the display portion 41, and the adjustment group 43 is provided with a connection And adjacent to the fixing seat 431 on the outer periphery of the display portion 41, and an adjustment button 432 facing the fixing seat 431 and the display portion 41. The adjustment button 432 is used to adjust the inner periphery of the display portion 41. The zero adjustment of the number 4122 of the large display ring 412 returns to the same position as the large pointer 4121.

Please refer to Fig. 3 and Figs. 4 and 5, the measuring body 5 includes a base body 51, a side facing the base body 51 and a locking portion 52 that is sleeved and fixed corresponding to the measuring head 42. And a probe 53 protruding toward the inner bottom end of the base 51. among them,

The seat body 51 has an accommodating groove 511 for the measuring head 42 to be sleeved, and a bottom end 50 of the seat body 51 is provided with an accommodating groove 511 that penetrates and penetrates to the bottom end of the seat body 51 A flat bottom end surface 513 of 50 has an insertion hole 512. The seat body 51 is replaced according to the length of the screw body to be measured. In this embodiment, the length of the body 61 of the small screw 6 is measured to not exceed 1 cm. The seat body 51 can also be designed as To measure the length of the screw body more than 1 cm longer than the screw. In more detail, the insertion hole 512 of the seat body 51 is used for the screw body 61 of the small screw 6 to be inserted, so that the inner diameter of the insertion hole 512 of the seat body 51 can be determined by the screw to be measured. The size is different, and it is placed in the insertion hole 512 for the probe 53 to move up and down. An inner screw hole 510 is provided near one side of the base 51.

Please refer to FIG. 6 again. The locking portion 52 is for example a locking screw and has an external threaded section 521. The external threaded section 521 and the internal threaded hole 510 of the locking portion 52 are screwed and fixed to each other. The design of the locking portion 52 mainly corresponds to when the protruding portion 420 of the measuring head 42 is sleeved inside the accommodating groove 511 of the seat body 51 for abutting and fixing, or when the locking When the part 52 is loosened towards the opposite direction of the inner screw hole 510, it can be adjusted After adjusting the protruding portion 420 of the measuring head 42 up and down in the accommodating groove 511, the locking portion 52 can be tightened toward the inner screw hole 510 to be screwed.

Please refer to FIG. 3 and FIGS. 6 and 7 again. The probe 53 has a head end 531 and a pole 532 extending toward one end of the head end 531. The outer diameter of the head end 531 is larger than the inner diameter of the insertion hole 512 in the bottom end 50 of the seat body 51. The probe 53 can move up and down in the insertion hole 512 to make the probe 53 The head end 531 is placed upward and toward the receiving groove 511. The upright rod 532 is inserted into the insertion hole 512, and the inner side of the head end 531 is abutted above the insertion hole 512, and a contact end 533 is formed at the end of the upright rod 532 from the seat body. The bottom end of the insertion hole 512 provided at the bottom end 50 of 51 protrudes outwardly. In more detail, the total length of the head end 531 and the upright 532 of the probe 53 is longer than the length of the insertion hole 512, so that the contact end 533 of the probe 53 has not yet measured the small screw 6 The screw body 61 protrudes toward the outside of the bottom end of the insertion hole 512. When the screw body 61 of the small screw 6 is to be measured, the flat bottom end surface 513 of the seat body 51 is first to be placed The contact end 533 of the probe 53 protruding outside the bottom end of the insertion hole 512 to abut on a flat surface 7 so that the probe 53 moves above the insertion hole 512 so that the probe 53 The head end 531 forms a point contact with the contact end 421 of the measuring head 42, and the length of the screw body 61 of the small screw 6 can be accurately displayed by the display portion 41.

Please refer to Fig. 5 and Figs. 6 and 7. When the screw measuring tool 3 for measuring the small screw 6 of the present invention is used, the measuring head 42 and the protruding portion 420 are first inserted into the seat Before measuring the screw body 61 of the small screw 6, the flat bottom end surface 513 of the seat body 51 and the outer side of the bottom end of the insertion hole 512 are first assembled in the accommodating groove 511 above the body 51. The contact end 533 of the probe 53 comes out to abut on the plane 7, so that the probe 53 moves from above the insertion hole 512, so that the tip 531 of the probe 53 and the measurement After the contact end 421 of the head 42 is in point contact, the locking portion 52 locked on the side of the seat body 51 is loosened toward the opposite direction of the inner screw hole 510, and the measuring head 42 is slightly adjusted to move upward. , Adjust the large pointer 4121 of the large display ring 412 to rotate to a position directly above, so as to facilitate the operator's viewing during measurement, and then the locking portion 52 Screw it toward the inner screw hole 510, and fasten the protruding portion 420 to be sleeved in the receiving groove 511 of the seat body 51 to be fixed, and then to loosen the adjustment button 432 of the adjustment group 43, and then Rotate the zero adjustment of the number 4122 of the large display ring 412 to the same position as the large pointer 4121, or stop the zero of the number 4122 of the large display ring 412, and loosen the adjustment button of the adjustment group 43 432, then rotate the large pointer 4121 of the large display ring 412 to the same position as the zero of the number 4122 of the large display ring 412.

Please refer to Figures 8 and 9, when using the screw measuring tool 3 of the present invention to measure the screw body 61 of the small screw 6, the screw body 61 of the small screw 6 faces the bottom end of the insertion hole 512 The protruding part of the contact end 533 of the probe 53 is inserted into the insertion hole 512 with the screw body 61 of the small screw 6 so that the inner side of the screw head 62 of the small screw 6 abuts against the seat On the flat bottom end surface 513 of the body 51, the bottom end of the screw body 61 of the small screw 6 moves upward and contacts the bottom end of the upright 532 of the probe 53, and at the same time the head end 531 of the probe 53 is also The measuring head 42 moves upward and forms a point contact with the contact end 421 of the measuring head 42. At this time, the measuring head 42 also moves upwards, and the display part 41 of the gauge body 4 immediately adopts the pointer type and the unit is mm , The small pointer 4111 of the small display ring 411 shows that the screw body 61 of the small screw 6 refers to the number 4112 between 7-8 digits, and the large pointer 4121 of the large display ring 412 is It is shown that the screw body 61 of the small screw 6 refers to the two-digit number 4122 after the decimal point of 0.62. Based on this, the value of the screw body 61 of the small screw 6 to be measured is 7.62 mm. The gauge body 4 displays the length of the screw body 61 of the small screw 6, which increases the practicability and convenience of the present invention.

In summary, the present invention has the following characteristics:

1. The present invention uses the insertion hole 512 of the measuring body 5 in the screw measuring tool 3, and also uses the tip 531 of the probe 53 and the contact end 421 of the measuring head 42 to form a point contact design. The length of the screw body 61 of the small screw 6 is accurately displayed by the gauge body 4, and the problem of the small screw 6 shaking during measurement will not occur.

2. The present invention is applicable to the gauge body 4 through the display portion 41 to display the length of the screw body 61 of the small screw 6, and the measuring head 42 can also be used to have the contact end 421 and the probe 53 The point contact of the head end 531 is to prevent the small screw 6 from sliding off due to shaking during hand measurement, and the value of the screw body 61 of the small screw 6 can be measured to be accurate The small display ring 411 and the large display ring 412 of the display unit 41 display exact numbers.

However, the foregoing are only preferred embodiments of the present invention, and their purpose is to enable those skilled in the art to understand the content of the present invention and implement them accordingly, and are not used to limit the scope of implementation of the present invention; Equal changes or modifications of the shapes, structures and features described should all be included in the scope of the patent application of the present invention.

Screw measuring tool 3 Scale body 4 Display 41 Small display ring 411 Small pointer 4111 Number 4112 Large display ring 412 Big pointer 4121 Number 4122 Adjustment group 43 Fixed seat 431 Adjustment button 432 Measuring body 5 Seat 51 Bottom 50 Flat bottom end surface 513 Locking part 52 Probe 53 Pole 532 Contact terminal 533

Claims (7)

A screw measuring tool for measuring the length of the screw body of a screw. The screw measuring tool includes a gauge body and a measuring body; wherein, The scale body includes a display portion and a telescopic function facing the bottom of the display portion and is provided at the end. Measuring head with a contact end; The measuring body includes a base, a side facing the base and a locking portion corresponding to the sleeve and fixing of the measuring head, and a probe protruding toward the outside of the bottom end of the base; wherein the base The body has an accommodating groove for the measuring head cover, and an insertion hole that penetrates the accommodating groove and penetrates to the bottom end of the seat is provided with a flat bottom end surface facing the bottom end of the seat body for supplying The screw body of the screw is inserted and the screw head of the screw abuts against the flat bottom end surface of the seat body, and the probe is actuated to form a point contact with the contact end of the measuring head. The display part shows the length of the screw body. The screw measuring tool described in item 1 of the scope of patent application, wherein, one side of the seat body is provided with an inner screw Hole; wherein, the locking portion has an external threaded section screwed to each other and fixed to the internal screw hole. For the screw measuring tool described in item 1 of the scope of patent application, the probe is provided with a head end abutting above the insertion hole of the base body, and an end extending toward the head end and located on the base body The vertical rod that moves up and down in the insertion hole, wherein the end of the vertical rod forms a contact end protruding from the outside of the bottom end of the insertion hole. The screw measuring tool described in item 3 of the scope of patent application, wherein the outer diameter of the tip end of the probe is larger than the inner diameter of the insertion hole in the bottom end of the seat body. The screw measuring tool described in item 3 of the scope of patent application, wherein the total length of the tip end of the probe and the upright rod is longer than the length of the insertion hole of the base body. For the screw measuring tool described in item 1 of the scope of the patent application, the gauge body further includes an adjustment group arranged on the outer periphery of the side facing the display portion, and the adjustment group is provided with a connection and adjacent to the display portion. A fixing seat on the outer periphery of the side, and an adjustment button facing the fixing seat and the inside of the display portion to adjust the position of the display portion. For the screw measuring tool described in item 1 of the scope of patent application, wherein the display part is a pointer type or an electronic digital type.

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