CN212620457U - Length measuring device suitable for narrow space - Google Patents
Length measuring device suitable for narrow space Download PDFInfo
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- CN212620457U CN212620457U CN202021559421.5U CN202021559421U CN212620457U CN 212620457 U CN212620457 U CN 212620457U CN 202021559421 U CN202021559421 U CN 202021559421U CN 212620457 U CN212620457 U CN 212620457U
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Abstract
The application discloses be suitable for length measurement device in narrow and small space relates to slide caliper rule measurement technical field, length measurement device includes: the base part is provided with a ruler foot at one end and a ruler sheath with first scales at the other end, the ruler sheath is provided with a stroke cavity, and the first scales are distributed on the ruler sheath along the stroke cavity; the measuring part is provided with a ruler head at one end and a ruler body with second scales at the other end, and the ruler body is accommodated in the stroke cavity and clamped in the ruler sheath; when the ruler body moves along the stroke cavity in the ruler sheath, the second scale changes the position relative to the first scale so as to determine the distance from the ruler head to the ruler foot. This application can measure the chi head to the distance of chi foot in narrow and small space, and measure easy operation.
Description
Technical Field
The application relates to the technical field of caliper measurement, in particular to a length measuring device suitable for narrow space.
Background
In bridge construction, the quality of the support is a key factor influencing the safety of a bridge structure, and the structural safety and the service life of the bridge are directly influenced. Therefore, the inspection or installation of the support for defects during its use is a very important task, however, without a good measuring tool. The main diseases of the support are concentrated on deformation, deviation, inclination and the like, and can be obtained through measuring the height difference of four corners of the support.
In the correlation technique, the space is limited when traditional tape measure is examined at the support downside, leads to the measured data error very big, can't satisfy actual demand, and other slide caliper rules do not also apply in narrow and small support position and do not open. Therefore, it is necessary to develop a measuring device suitable for measuring the narrow space where the support is located, so as to monitor the health condition of the bridge support during bridge construction or operation.
Disclosure of Invention
The embodiment of the application provides a be suitable for length measurement device in narrow and small space, it can measure the distance of chi head to chi foot in narrow and small space, and measure easy operation.
The embodiment of the application provides a be suitable for length measurement device in narrow and small space, length measurement device includes:
the base part is provided with a ruler foot at one end and a ruler sheath with first scales at the other end, the ruler sheath is provided with a stroke cavity, and the first scales are distributed on the ruler sheath along the stroke cavity;
the measuring part is provided with a ruler head at one end and a ruler body with second scales at the other end, and the ruler body is accommodated in the stroke cavity and clamped in the ruler sheath; when the ruler body moves along the stroke cavity in the ruler sheath, the second scale changes the position relative to the first scale so as to determine the distance from the ruler head to the ruler foot.
In this embodiment, preferably, the second scale is arranged on the outer surface of the ruler body along the moving direction of the ruler body, and the second scale is arranged close to the first scale.
Preferably, the length measuring device further includes:
the driving part is embedded in the ruler sheath, is connected with the ruler body and is used for driving the ruler body to move along the stroke cavity in the ruler sheath.
Preferably, still seted up the drive chamber on the chi sheath, the drive chamber with the stroke cavity intercommunication, the drive division specifically includes:
the two knob shaft bases are fixedly arranged on two opposite sides of the driving cavity respectively;
the two ends of the knob rotating shaft are respectively connected with the knob shaft seat;
and the knob is sleeved on the knob rotating shaft and is meshed and connected with the ruler body.
Preferably, the second scale is arranged opposite to the engagement part of the ruler body.
Preferably, the ruler body is of a double-rectangular step structure, and the ruler sheath is connected with the ruler body in a matched mode.
Preferably, the foot and/or the head are both forked.
Preferably, the length measuring device has a measuring accuracy of.mm.
Preferably, the length measuring device further comprises a tape measure case of rectangular parallelepiped configuration.
Preferably, at least one outer surface of the ruler box is provided with a ruler foot groove matched with the ruler foot.
The beneficial effect that technical scheme that this application provided brought includes:
(1) the embodiment of the application provides a be suitable for length measuring device in narrow and small space, can be in narrow and small space, with the chi foot butt of basal portion at the initiating terminal that awaits measuring, along the chi body to the chi head butt of the travel cavity removal measuring part in the chi sheath terminal that awaits measuring, according to the reading of first scale on the chi sheath and second scale, confirm the chi head to the distance of chi foot, its simple structure, and measure easy operation.
(2) In this embodiment, the tape box can be used as a supplementary stroke increment to compensate for the situation that the measuring range from the tape head to the tape foot is smaller, and the measuring range of the length measuring device is expanded.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of a base portion of a length measuring device suitable for use in a narrow space according to an embodiment of the present disclosure;
FIG. 2 is a view from the direction A-A in FIG. 1;
fig. 3 is a front view of a measuring portion of a length measuring device suitable for a narrow space according to an embodiment of the present disclosure;
FIG. 4 is a view from the direction B-B in FIG. 3;
FIG. 5 is a front view of a length measuring device suitable for use in a small space according to an embodiment of the present disclosure;
FIG. 6 is a front view of another base provided by an embodiment of the present application;
FIG. 7 is a front view of another measuring section provided in an embodiment of the present application;
FIG. 8 is a front view of another length measuring device suitable for use in a small space according to an embodiment of the present disclosure;
fig. 9 is a front view of a driving portion provided in an embodiment of the present application;
FIG. 10 is a perspective view of a blade case provided in an embodiment of the present application;
in the figure: 1. a base; 11. a ruler foot; 12. a ruler sheath; 13. a first scale; 14. a stroke cavity; 15. a drive chamber; 2. a measuring section; 21. a ruler head; 22. a ruler body; 23. a second scale; 24. an engaging portion; 3. a drive section; 31. a knob shaft seat; 32. a knob shaft; 33. a knob; 4. a ruler box; 41. a ruler foot groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 4, an embodiment of the present application provides a length measuring device suitable for a narrow space, where the length measuring device includes:
the base part 1 is provided with a ruler foot 11 at one end and a ruler sheath 12 with a first scale 13 at the other end, the ruler sheath 12 is provided with a stroke cavity 14, and the first scale 13 is arranged on the ruler sheath 12 along the stroke cavity 14;
a measuring part 2, one end of which is a ruler head 21, the other end is a ruler body 22 with a second scale 23, the ruler body 22 is accommodated in the stroke cavity 14 and clamped in the ruler sheath 12; when the ruler body 22 moves along the stroke cavity 14 in the ruler sheath 12, the second scale 23 changes the position relative to the first scale 13 to determine the distance from the ruler head 21 to the ruler foot 11.
The embodiment of the application provides a be suitable for length measurement device in narrow and small space, its theory of operation is:
placing one end of a ruler foot 11 in a base part 1 in a space to be measured, moving a measuring part 2 in a direction away from the ruler foot 11 until a ruler head 21 of the measuring part 2 abuts against the other end of the space to be measured, wherein a ruler body 22 is clamped in a ruler sheath 12 and moves along a stroke cavity 14 in a direction away from the ruler foot 11, and reading the distance from the ruler head 21 to the ruler foot 11 according to the position of a second scale 23 on the ruler body 22 relative to a first scale 13 on the ruler sheath 12, wherein the distance is the length from a free end of the ruler head 21 to a free end of the ruler foot 11.
In the embodiment of the present application, the second scale 23 is arranged on the outer surface of the ruler body 22 along the moving direction of the ruler body 22, and the second scale 23 is arranged close to the first scale 13. The first scale 13 and the second scale 23 are arranged on the outer surface, so that reading is convenient.
As shown in fig. 5 to 10, preferably, the length measuring device further includes:
and the driving part 3 is embedded in the tape sheath 12, is connected with the tape body 22, and is used for driving the tape body 22 to move along the stroke cavity 14 in the tape sheath 12. The movement of the tape body 22 is driven by the driving unit 3.
Further, a driving cavity 15 is further formed in the ruler sheath 12, the driving cavity 15 is communicated with the stroke cavity 14, and the driving portion 3 specifically includes:
the two knob shaft bases 31 are respectively and fixedly arranged at two opposite sides of the driving cavity 15;
a knob rotating shaft 32, both ends of which are respectively connected with the knob shaft seat 31;
a knob 33, which is sleeved on the knob rotating shaft 32 and is engaged with the ruler body 22.
In the embodiment of the application, the driving part 3 is embedded in the driving cavity 15 of the tape sheath 12, and the engaging part on the tape body 22 engaged with the knob 33 is driven to move linearly by the rotation of the knob 33.
Specifically, the second scale 23 is provided on the opposite side of the engaging portion 24 of the blade 22. When the engaging portion 24 of the blade 22 is disposed on the opposite side of the second scale 23, consistent reading of the second scale can be ensured.
Referring to fig. 4, specifically, the ruler body 22 is a double-rectangular step structure, and the ruler sheath 12 is fittingly connected with the ruler body 22. The double rectangular step structure is easy to manufacture.
In particular, the foot 11 and/or the head 21 are fork-shaped. The fork-shaped ruler foot 11 and/or the ruler head 21 can be stably arranged at a measuring point during measurement, and meanwhile, the weight of the length measuring device can be reduced, and the length measuring device is convenient to carry.
Specifically, the measurement accuracy of the length measuring device is 0.02 mm. The length of the second scale 23 on the ruler body 22 is 49mm, the second scale is equally divided into 50 scales, and each scale is 0.98mm, so that the measurement accuracy of the embodiment of the application can reach 0.02 mm.
Preferably, the length measuring device further comprises a blade case 4 of rectangular parallelepiped configuration. The tape case 4 houses the base 1 and the measuring part 2.
Further, a ruler foot groove 41 matched with the ruler foot 11 is arranged on at least one outer surface of the ruler box 4. Specifically, the outer surfaces of the three different lengths of the ruler box 4 are provided with ruler foot grooves 41, the ruler foot grooves 41 are matched with the ruler feet 11, and the three lengths of the ruler box 4 can be used as fixed supplementary lengths to expand the measuring range of the length measuring device. It can be seen that when the length of the space to be measured is longer than the range of the measuring part 2, the measuring range can be expanded by using the ruler box 4 in cooperation.
When the length measuring device is used for measuring the height difference of four corners of a bridge support, firstly, at the same position of each corner of the support, the base part 1 is vertically placed on the bottom of a space to be measured, wherein the free end of the ruler foot 11 is abutted against the bottom of the space to be measured, the knob 33 is rotated to drive the engagement part 24 on the ruler body 22 engaged with the knob 33 to move upwards in a straight line until the free end of the ruler head 21 is abutted against the top of the space to be measured, at the moment, the distance from the ruler head 21 to the ruler foot 11 is read according to the position of the second scale 23 relative to the first scale 13, and analysis is carried out according to the obtained four distance values, so that whether the bridge support has a disease or not can be determined.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A length measuring device suitable for a narrow space, comprising:
the ruler comprises a base (1), a ruler foot (11) and a ruler sheath (12) with first scales (13), wherein the ruler sheath (12) is provided with a stroke cavity (14), and the first scales (13) are distributed on the ruler sheath (12) along the stroke cavity (14);
the measuring part (2) is provided with a ruler head (21) at one end and a ruler body (22) with second scales (23) at the other end, and the ruler body (22) is accommodated in the stroke cavity (14) and clamped in the ruler sheath (12); when the ruler body (22) moves along the stroke cavity (14) in the ruler sheath (12), the second scale (23) changes the position relative to the first scale (13) to determine the distance from the ruler head (21) to the ruler foot (11).
2. The narrow space-applicable length measuring device according to claim 1, wherein the second scale (23) is arranged on the outer surface of the blade body (22) along the moving direction of the blade body (22), and the second scale (23) is disposed close to the first scale (13).
3. The narrow space-applicable length measuring device according to claim 1, further comprising:
the driving part (3) is embedded in the ruler sheath (12), is connected with the ruler body (22) and is used for driving the ruler body (22) to move along the stroke cavity (14) in the ruler sheath (12).
4. The length measuring device applicable to narrow spaces as claimed in claim 3, wherein the blade sheath (12) is further provided with a driving cavity (15), the driving cavity (15) is communicated with the stroke cavity (14), and the driving part (3) specifically comprises:
the two knob shaft bases (31) are fixedly arranged on two opposite sides of the driving cavity (15) respectively;
a knob rotating shaft (32), both ends of which are respectively connected with the knob shaft seat (31);
and the knob (33) is sleeved on the knob rotating shaft (32) and is meshed and connected with the ruler body (22).
5. The narrow space-applicable length measuring device according to claim 4, wherein the second scale (23) is provided on the opposite side of the engaging portion of the blade body (22).
6. The narrow space-applicable length measuring device as claimed in claim 1, wherein the ruler body (22) is a double-rectangular step structure, and the ruler sheath (12) is connected with the ruler body (22) in a matching manner.
7. The narrow space-applicable length measuring device according to claim 1, wherein the foot (11) and/or the head (21) are fork-shaped.
8. The narrow space-applicable length measuring device according to claim 1, wherein the measuring accuracy of the length measuring device is 0.02 mm.
9. A length measuring device for narrow spaces, according to claim 1, characterized in that it further comprises a rule case (4) of rectangular parallelepiped conformation.
10. The narrow space-applicable length measuring device according to claim 9, wherein a foot groove (41) adapted to the foot (11) is provided on at least one outer surface of the blade case (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021559421.5U CN212620457U (en) | 2020-07-31 | 2020-07-31 | Length measuring device suitable for narrow space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021559421.5U CN212620457U (en) | 2020-07-31 | 2020-07-31 | Length measuring device suitable for narrow space |
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| Publication Number | Publication Date |
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| CN212620457U true CN212620457U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021559421.5U Active CN212620457U (en) | 2020-07-31 | 2020-07-31 | Length measuring device suitable for narrow space |
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| CN (1) | CN212620457U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102385744B1 (en) * | 2021-05-31 | 2022-04-14 | 주식회사 한국구조진단연구원 | Portable safety diagnosis device for safety inspection of bridge expansion joint |
-
2020
- 2020-07-31 CN CN202021559421.5U patent/CN212620457U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102385744B1 (en) * | 2021-05-31 | 2022-04-14 | 주식회사 한국구조진단연구원 | Portable safety diagnosis device for safety inspection of bridge expansion joint |
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