CN211425235U

CN211425235U - Limit measuring caliper

Info

Publication number: CN211425235U
Application number: CN202020187860.1U
Authority: CN
Inventors: 夏海涛
Original assignee: Suzhou Greentec Automobile Design Co ltd
Current assignee: Suzhou Greentec Automobile Design Co ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-09-04
Anticipated expiration: 2030-02-20

Abstract

The utility model discloses a limit measurement slide caliper rule belongs to industry measuring tool technical field, including this chi, slide setting slider on this chi and fix the control portion on the slider, still connect through link mechanism between this chi and the slider, link mechanism is including rotating link and connecting link. When in measurement, the slider is pushed to slide on the ruler through the rotation of the rotating link, and the measurement of the unit to be measured is realized by utilizing the first measuring mechanism arranged on the ruler and the second measuring mechanism arranged on the slider. The measurer does not need to hold the ruler, can prevent the problem that the hand interferes with normal measurement, and can inhibit the influence of interference objects around the unit to be measured, so normal and accurate measurement can be simply realized, the measurement can be realized by using the left hand or the right hand, and the use and the operation are simple and convenient.

Description

Limit measuring caliper

Technical Field

The utility model belongs to the technical field of the industrial measuring instrument, concretely relates to limit measurement slide caliper rule.

Background

The measuring caliper is a tool for industrial measurement, can be used for measuring length, inner diameter, outer diameter, depth and the like, and has wide application in modern industry. The measuring caliper generally comprises a main scale and a vernier which is positioned on the main scale and can slide along the main scale, and the measuring caliper generally comprises two pairs of movable measuring claws, namely an inner measuring claw and an outer measuring claw which can be respectively used for measuring the inner diameter and the outer diameter. However, the conventional measuring calipers are generally suitable for measuring conventional industrial parts, and the measurement of some parts with special shape and structure and specific positions is difficult to realize, so the measuring calipers need to be improved.

The Chinese patent application CN110530228A (an aviation tire shoulder size measuring caliper and a measuring method) is improved on the basis of the existing vernier caliper, an auxiliary vernier is arranged between a left measuring claw and a right measuring claw, the auxiliary vernier is a cross sliding groove formed by intersecting a vertical sliding groove and a transverse sliding groove, a main ruler is matched and assembled with the transverse sliding groove, and the auxiliary vernier is matched and assembled with the vertical sliding groove; the auxiliary vernier scale can move left and right along the main scale, the auxiliary scale can slide up and down in a vertical sliding groove of the auxiliary vernier scale, and the auxiliary scale and the auxiliary vernier scale are perpendicular to the main scale. The measuring caliper can be used for accurately measuring the size of the shoulder of an aircraft tire and is convenient to use. Chinese utility model patent CN202442660U (measuring caliper) is on current measuring caliper's basis, and the terminal of measuring claw and right measuring claw in a left side is through the radius angle, can measure closing diameter of tire, and does not need other appurtenance to the measuring claw sets up to detachable construction, after dismantling it, can regard as ordinary measuring caliper to use. However, in the above two patents, the measuring caliper can only be used for measuring specific parts or devices, and the application range is narrow, and in other occasions, the measuring caliper cannot be applied well.

In addition, the structure of the existing measuring caliper may be difficult or impossible to perform accurate measurement under the influence of the surrounding space environment of the unit to be measured; that is, in the related art, in order to obtain accurate data, it is necessary to arrange the entire measuring caliper in the vicinity of the unit to be measured in an appropriate posture, and in practical use, the measuring caliper may be affected by an obstacle in the vicinity of the unit to be measured and cannot be arranged appropriately in the unit to be measured: for example, when a narrow space such as an automobile body needs to be measured, parts and walls around a unit to be measured interfere with the use of the measuring caliper due to the narrow space; for example, when measuring the inside dimension of a hole or a slit formed in a flat surface or a concave surface, if a measuring caliper is inserted into the hole or the slit, a hand holding the measuring caliper is disturbed, thereby making the measurement difficult. Although a pin gauge or a screw gauge can be used for measuring a unit to be measured in a narrow space, the measurement range is limited and the measurement process is complicated when the pin gauge or the screw gauge is used. Therefore, the current measuring calipers need to be improved to meet the actual requirements.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that wants to solve is that the measurement slide caliper among the prior art is when measuring the volume of awaiting measuring unit to narrow space, easily receives the interference of barrier in the space, consequently causes to measure the technical problem accurate inadequately.

In order to solve the technical problem, the utility model discloses a limit measuring caliper, which comprises a main scale, a slider and a holding part, wherein the slider is arranged on the main scale in a sliding way and can slide along the main scale; the holding part is fixed on the slider, and the holding part extends in the direction orthogonal to the relative sliding direction of the ruler and the slider;

the ruler is provided with a first measuring mechanism, and the slider is provided with a second measuring mechanism; the first measuring mechanism comprises a first outer measuring mechanism and a first inner measuring mechanism, and the second measuring mechanism comprises a second outer measuring mechanism and a second inner measuring mechanism;

the first outer measuring mechanism and the second outer measuring mechanism respectively protrude from the end parts of the ruler and the slider and protrude towards one side in the same length direction as the holding part; the first inner measuring mechanism and the second inner measuring mechanism respectively protrude from the other sides of the ends of the ruler and the slider and protrude towards the side opposite to the length direction of the holding part;

the end of the other side of the slider opposite to the second measuring mechanism is provided with a decompressor; when the first measuring mechanism and the second measuring mechanism are in an open state, the decompressor protrudes from the rear end part of the ruler in the sliding direction; when the first measuring mechanism and the second measuring mechanism are in a closed state, the rear end part of the ruler is consistent with the rear end part of the decompressor in the sliding direction.

Further, the width of the first outer measuring mechanism is larger than the width of the first inner measuring mechanism; the length of the first outer measuring mechanism is equal to the sum of the length of the first inner measuring mechanism and the width of the part of the ruler, which is provided with the sliding device; the length of the first outer measuring mechanism is equal to the length of the second outer measuring mechanism; the length of the first inner measuring means is equal to the length of the second inner measuring means.

Further, the ruler and the slider are connected through a link mechanism, the link mechanism comprises a rotating link and a connecting link, the holding part is provided with a shaft support part on the side of the connecting end of the slider, and the rotating link is rotatably arranged on the shaft support part through a rotating shaft I; one end of the connecting link is rotatably arranged at one end of the rotating link, which is positioned at the shaft supporting part, through a rotating shaft II, and the other end of the connecting link is rotatably arranged on the first outer measuring mechanism through a rotating shaft III; the rotating shaft I, the rotating shaft II and the rotating shaft III are parallel to each other.

Further, the rotating link has a first convex portion and a second convex portion protruding to the outside in the rotating shaft direction; the included angle between the first protruding portion and the second protruding portion is 80-95 degrees.

Further, the link mechanisms are formed in a pair on both sides of the shaft support portion in the direction of the rotation axis i, the rotation axis ii, and the rotation axis iii, and the pair of link mechanisms are disposed symmetrically with respect to each other with the center axis of the grip portion therebetween as viewed from the sliding direction of the slider on the ruler.

Further, the grip portion has a rod-shaped portion extending from the shaft support portion and two elastic portions attached to the rod-shaped portion.

Further, the elastic portions are respectively fitted to two positions spaced apart from each other on the rod-like portion in the longitudinal direction of the grip portion.

Further, the cross section of the rod-shaped part is elliptical; the cross section of the elastic part is in an elliptical ring shape.

Further, the rod-shaped portion is made of a metal material; the elastic part is made of a polyurethane material.

Furthermore, a digital display unit is installed on the slider, and a display screen is arranged on the digital display unit.

Compared with the prior art, the utility model discloses a limit measurement slide caliper rule has following advantage:

1. the caliper of the application is fixed on the slider and is provided with the holding part which is arranged in the orthogonal direction with the relative sliding direction of the caliper and the slider, so when the caliper of the application is used for measuring the unit to be measured, a measurer does not need to hold the caliper, and the problem that the hand holding the caliper interferes with normal measurement can be prevented.

2. Because the slide caliper rule does not need to be grasped when the slide caliper rule is used for measuring, the length of the slide caliper rule can be shortened to a certain extent, and even if an obstacle exists around the unit to be measured, the influence of the obstacle and the surrounding space environment can be inhibited, so that normal measurement is convenient.

3. When the caliper is used, the holding part can be held by one hand, and the slider can slide for use; so that it can be conveniently used for both right-handed and left-handed people.

Drawings

FIG. 1: the front view of the limit measurement caliper in this embodiment.

FIG. 2: in the present embodiment, the caliper is a perspective view of the limit measurement caliper.

FIG. 3: in the present embodiment, the other perspective views of the limit measurement caliper are shown.

FIG. 4: the rear view of the limit measurement caliper in this embodiment.

FIG. 5: the V arrow view of fig. 2.

FIG. 6: VI arrow view of fig. 2.

FIG. 7: VII arrow view of figure 2.

FIG. 8: fig. 2 is a view of arrow VIII.

FIG. 9: in the present embodiment, the limit measurement caliper is partially viewed from the front in a state where the limit measurement caliper is opened between the first measurement mechanism and the second measurement mechanism.

FIG. 10: in the present embodiment, the limit measurement caliper is a front view in a state where the first measurement mechanism and the second measurement mechanism are closed.

FIG. 11: an explanatory diagram of a state in which a slit formed in a planar portion is attempted to be measured using a conventional caliper.

FIG. 12: in the present embodiment, an explanatory diagram of a state in which the limit measuring caliper measures the slit formed in the plane portion is shown.

FIG. 13: an explanatory diagram of a state of attempting to measure a slit with an obstacle therearound using a conventional caliper.

FIG. 14: in the present embodiment, an explanatory diagram of a state in which a limit measurement caliper measures a slit having an obstacle therearound is shown.

FIG. 15: the left hand holds an explanatory view of the limit measuring caliper in this embodiment.

FIG. 16: an explanatory diagram of a state in which the limit measurement caliper is turned over in the present embodiment is grasped.

Reference numerals: 1-limit measuring calipers; 2-book ruler; 3-a slider; 5-a holding part; 6-link mechanism; 41-a first measuring mechanism; 411 — first inner measuring means; 421-a second inner measuring mechanism; 412-a first outer measuring mechanism; 422-a second outer measuring mechanism; 31-a digital display unit; 311-display screen; 32-a decompressor; 51-journal portion; 52-a rod-shaped portion; 53-an elastic portion; 61-rotating link; 62-a connection link; 601-rotating shaft I, 602-rotating shaft II and 603-rotating shaft III; 611-a first raised portion; 612-a second boss; 9-traditional caliper; 92-traditional caliper book ruler.

Detailed Description

The following describes in detail specific embodiments of the present invention with reference to the accompanying drawings.

The terms of orientation such as "upper", "lower", "left", "right", "front" and "back" mentioned in this section are only used to describe the relative position of the components of the product in this specific embodiment, and should not be interpreted as limiting the terms of the present invention.

As fig. 1 to 10 show the structure of the limit measuring caliper of the present embodiment, the limit measuring caliper 1 includes a tape 2, a slider 3, a grip portion 5, and a link mechanism 6. The slider 3 is arranged on the ruler 2 in a sliding mode, and the slider 3 can slide along the ruler 2 in the X direction; the grip portion 5 is fixed to the slider 3, and the grip portion 5 extends in a direction orthogonal to the relative sliding direction X of the main scale 2 and the slider 3.

Wherein, be equipped with first measuring mechanism 41 on this chi 2, be equipped with second measuring mechanism on the slider 3, first measuring mechanism 41 and the cooperation of second measuring mechanism are used, and first measuring mechanism 41 and second measuring mechanism all have two, are respectively: a first inner measuring means 411 and a second inner measuring means 421 for measuring the inside dimension of the cell to be measured; and a first outer measuring mechanism 412 and a second outer measuring mechanism 422 for measuring the outside dimension of the unit to be measured. The first outer measuring means 412 protrudes from the end of the main scale 2 toward the same side as the longitudinal direction of the grip 5; the second outer measuring mechanism 422 protrudes from the end of the slider 3 toward the same side as the longitudinal direction of the grip portion 5. The first inner measuring mechanism 411 and the second inner measuring mechanism 421 protrude from the other side of the end portions of the main scale 2 and the slider 3, respectively, and protrude toward the side opposite to the longitudinal direction of the grip portion 5.

A decompressor 32 is provided at an end (hereinafter referred to as a rear end) of the slider 3 opposite to the end at which the second measuring mechanism is provided, the decompressor 32 protruding from the rear end of the present ruler 2 in the sliding direction X when the first measuring mechanism 41 and the second measuring mechanism are in an open state; when the first measuring mechanism 41 and the second measuring mechanism are in the closed state, the rear end portion of the present ruler 2 and the rear end portion of the decompressor 32 are at the same position in the sliding direction X.

As shown in fig. 1, in the limit measuring caliper 1, the overall dimension w1 in the sliding direction X is smaller than the overall dimension h1 in the longitudinal direction of the grip 5. In the present embodiment, the total dimension w1 is the same when the first measuring mechanism 41 and the second measuring mechanism are opened (fig. 9) and when they are closed (fig. 10). In the present embodiment, the overall dimension w1 is shorter than the length h5 of the grip 5.

As shown in fig. 9 and 10, the tape 2 and the slider 3 are connected by a link mechanism 6, the link mechanism 6 includes a rotation link 61 and a connection link 62, the grip portion 5 is provided with a pivot portion 51 on the side of the connection end of the slider 3, and the rotation link 61 is rotatably mounted on the pivot portion 51 through a rotation shaft i 601; one end of the connecting link 62 is rotatably mounted on the rotating link 61 at one end of the shaft support portion 51 through a rotating shaft ii 602, and the other end of the connecting link 62 is rotatably mounted on the first outer measuring mechanism 412 through a rotating shaft iii 603; the rotation axis i 601, the rotation axis ii 602, and the rotation axis iii 603 are parallel to each other.

The rotating link 61 has a first projecting portion 611 and a second projecting portion 612 that project outward in the direction of the rotation axis, and is convenient for touching with the user's finger when the limit measurement caliper 1 is used. The thumb of the hand holding the grip portion 5 is applied on the first convex portion 611 or the second convex portion 612. The first projecting portion 611 and the second projecting portion 612 are provided on the rotational link 61 at an angle of 95 ° with their longitudinal directions substantially orthogonal as viewed from the projecting direction.

In addition, the first convex portion 611 is arranged on an extension line in the length direction of the first convex portion 611 when viewed from the rotational axis direction, so that the rotational axis 601 exists. That is, the length direction of the 1 st projection 611 is substantially orthogonal to the rotation direction. In addition, as shown in fig. 10, the first projecting portion 611 is formed on the side opposite to the projecting side of the first inner measuring mechanism 411 and the second inner measuring mechanism 421 with respect to the position of the rotation shaft 601 in the state where the first measuring mechanism 41 and the second measuring mechanism are closed.

As shown in fig. 2, 3, and 5 to 8, the link mechanism 6 is formed in a pair on both sides of the shaft support portion 51 in the rotation axis direction. As shown in fig. 5 and 6, the pair of link mechanisms 6 are symmetrically disposed with respect to each other with the center axis of the grip portion 5 therebetween when viewed in the sliding direction X.

As shown in fig. 1 to 7, the grip portion 5 includes a rod portion 52 extending from the shaft support portion 51 and an elastic portion 53 attached to a part of the outer peripheral surface of the rod portion 52. The rod-shaped portion 52 is made of metal or the like, and the elastic portion 53 is made of an elastic member such as rubber or urethane. The rod-shaped portion 52 has an elliptic cylindrical shape. The elastic portions 53 are attached to two positions apart from each other in the longitudinal direction of the grip portion 5. Both the elastic portions 53 are formed in an elliptical ring shape.

As shown in FIG. 9, the width e of the first outer measuring mechanism 412 is greater than the width d of the first inner measuring mechanism 411; the length b of the first outer measuring mechanism 412 is equal to the sum of the length a of the first inner measuring mechanism 411 and the width c of the part of the measuring tape 2 where the slider 3 is arranged, and the length of the first outer measuring mechanism is equal to the length of the second outer measuring mechanism; the length of the first inner measuring means is equal to the length of the second inner measuring means. Such an arrangement makes the structure of the limit measuring caliper 1 more robust and facilitates the measurement of the slit by the first inner measuring mechanism 411 and the second inner measuring mechanism 421.

In the present embodiment, as shown in fig. 1, a digital display unit 31 is attached to the slider 3. The digital display unit 31 is provided with a display screen 311 which can display the measurement result of the limit measurement caliper 1.

The operation and effect of the limit measuring caliper of the present embodiment when used for measurement will be described below.

The limit caliper 1 has a grip portion 5 fixed to the slider 3 and extending in a direction orthogonal to the sliding direction X. Therefore, the measurer does not need to grasp the ruler 2 when performing measurement of the measured portion S. Therefore, the hand holding the main scale 2 can be prevented from interfering with an obstacle (for example, a flat portion B1, see fig. 12 described later) near the measurement target portion S. Further, since the measurer does not need to grasp the main scale 2, the length of the main scale 2 can be shortened to some extent. In this way, even when there is an obstacle around the measurement portion S, the main scale 2 can interfere with the obstacle (see fig. 14 described later). As a result, the influence of the spatial environment around the measurement target portion S can be suppressed, and the measurement can be performed easily.

For example, as shown in fig. 11 and 12, a scene in which the inner dimension of the slit S (measured portion) formed in the planar portion B1 is measured is given. As shown in fig. 11, it is shown that the hand H of the measurer who grasps the present ruler 92 interferes with the plane portion B1 when the first inner measuring means 411 and the second inner measuring means 421 are inserted into the slit S at the time of measurement using the conventional caliper 9 without the grip portion 5. Therefore, it is difficult to perform accurate measurement.

In contrast, as shown in fig. 12, when the inner dimension of the slit S at the same position is measured by the limit measuring caliper 1 of the present embodiment, the hand H of the measurer does not interfere with the flat portion B1 because the measurer can grasp the grip portion 5. Therefore, accurate measurement is easily performed.

Further, as shown in fig. 13 and 14, a measurement scene in a case where an obstacle B2 exists in the vicinity of the periphery of the measurement target portion (slit S) is considered. As shown in fig. 13, even if the dimension of the measurement target portion S is measured by the conventional caliper 9, the conventional caliper 9 interferes with an obstacle, and the first inner measuring mechanism 411 and the second inner measuring mechanism 421 cannot be inserted into the slit S in an appropriate posture. In addition, even if the present ruler 92 is shortened, it becomes difficult to operate the conventional caliper 9, and it is difficult to perform accurate measurement.

On the other hand, as shown in fig. 14, when the inner dimension of the slit S at the same position is measured by the limit measurement caliper 1 of the present embodiment, the operator can grasp the grip portion 5, and therefore, even if the length of the main scale 2 is shortened, the operability at the time of measurement is not affected. Further, by shortening the length of the main scale 2, the main scale does not interfere with the obstacle B2, and the 1 st inner measuring mechanism 411 and the second inner measuring mechanism 421 can be inserted into the slit S in an appropriate posture, so that accurate measurement results can be easily obtained.

Further, since the limit measuring caliper 1 includes the grip portion 5, the limit measuring caliper 1 can be operated in the same manner even in the right hand RH or the left hand LH without reversing the limit measuring caliper 1 (without reversing the direction in the thickness direction) as shown in fig. 12 and 15.

The main scale 2 and the slider 3 are connected by a link mechanism 6, and are configured to be slidable with respect to the main scale 2 by a rotating operation of the rotating link 61. This makes it possible to easily and smoothly slide the slider 3 with respect to the main scale 2. In particular, by operating the rotation link 61 with the fingers of the grip portion 5, the slider 3 can also be slid. As a result, the measurement of the measurement target unit S can be performed more easily.

Further, since the link mechanisms 6 are provided on both sides in the thickness direction of the limit measurement caliper 1, even if the unit to be measured is turned upside down, as shown in fig. 12 and 16, the measurement can be performed with the same hand (for example, the right hand RH). This makes the restriction on the caliper 1 by the space environment around the measurement portion S small.

The overall dimension w1 in the sliding direction X is smaller than the overall dimension h5 in the longitudinal direction of the grip 5, and is also smaller than the overall dimension h1 in the longitudinal direction of the limit measurement caliper 1. This makes it possible to easily grip the grip portion 5 and shorten the length of the limit measuring caliper 1 in the sliding direction X. As a result, the measurement of the slit S of the measurement target portion in the narrow space can be performed more easily.

In this embodiment, the longitudinal direction of the grip portion 5 from the slider 3 is the direction opposite to the projecting direction of the first inner measuring mechanism 411 and the second inner measuring mechanism 421. Accordingly, the movement direction of the limit measuring caliper 1 when the first inner measuring means 411 and the second inner measuring means 421 are inserted and arranged in the measurement portion S is opposite to the extending direction of the grip portion 5, and the movement direction and the extending direction do not interfere with each other.

The above-mentioned series of detailed descriptions are only specific descriptions of feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all the changes made without departing from the spirit of the present invention within the knowledge range of the ordinary skilled person in the art are within the scope of the present invention.

Claims

1. The utility model provides a limit measurement caliper rule, includes this chi, slider, the handle portion, its characterized in that:

the slider is arranged on the ruler in a sliding manner and can slide along the ruler; the holding part is fixed on the slider, and the holding part extends in the direction orthogonal to the relative sliding direction of the ruler and the slider;

2. The limit measuring caliper of claim 1, wherein: the width of the first outer measuring mechanism is larger than that of the first inner measuring mechanism; the length of the first outer measuring mechanism is equal to the sum of the length of the first inner measuring mechanism and the width of the part, provided with the sliding device, of the measuring tape; the length of the first outer measuring mechanism is equal to the length of the second outer measuring mechanism; the length of the first inner measuring means is equal to the length of the second inner measuring means.

3. The limit measuring caliper of claim 1, wherein: the ruler and the slider are connected through a link mechanism, the link mechanism comprises a rotating link and a connecting link, the holding part is provided with a shaft support part on the side of the connecting end of the slider, and the rotating link is rotatably arranged on the shaft support part through a rotating shaft I; one end of the connecting link is rotatably arranged at one end of the rotating link, which is positioned at the shaft supporting part, through a rotating shaft II, and the other end of the connecting link is rotatably arranged on the first outer measuring mechanism through a rotating shaft III; the rotating shaft I, the rotating shaft II and the rotating shaft III are parallel to each other.

4. An extreme measuring calliper as claimed in claim 3 wherein: the rotating link is provided with a first convex part and a second convex part which are convex towards the outer side of the rotating shaft direction; the included angle between the first protruding portion and the second protruding portion is 80-95 degrees.

5. An extreme measuring calliper as claimed in claim 4 wherein: the link mechanisms are formed in a pair on both sides of the shaft support part in the directions of the rotating shaft I, the rotating shaft II and the rotating shaft III, and the link mechanisms are symmetrically arranged with respect to each other with the center axis of the grip part therebetween when viewed from the sliding direction of the slider on the ruler.

6. An extreme measuring calliper as claimed in claim 5 wherein: the grip portion has a rod-shaped portion extending from the shaft support portion and two elastic portions attached to the rod-shaped portion.

7. The limit measuring caliper of claim 6, wherein: the elastic parts are respectively sleeved on two positions which are separated from each other on the rod-shaped part in the length direction of the holding part.

8. The limit measuring caliper of claim 7, wherein: the cross section of the rod-shaped part is elliptical; the cross section of the elastic part is in an elliptical ring shape.

9. The limit measuring caliper of claim 8, wherein: the rod-shaped part is made of a metal material; the elastic part is made of a polyurethane material.

10. The limit measuring caliper of claim 1, wherein: and a digital display unit is arranged on the slider, and a display screen is arranged on the digital display unit.