CN209689552U - Clearance measurement tool - Google Patents
Clearance measurement tool Download PDFInfo
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- CN209689552U CN209689552U CN201920267981.4U CN201920267981U CN209689552U CN 209689552 U CN209689552 U CN 209689552U CN 201920267981 U CN201920267981 U CN 201920267981U CN 209689552 U CN209689552 U CN 209689552U
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- measuring head
- slide rheostat
- measurement tool
- probe
- clearance measurement
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Abstract
The utility model discloses a kind of clearance measurement tools.The clearance measurement tool includes that the first measuring head and the second measuring head, slide rheostat and control display device, slide rheostat are arranged between the first measuring head and the second measuring head, to connect the first measuring head and the second measuring head.According to the clearance measurement tool of the utility model embodiment, first measuring head and the second measuring head can be fixedly connected with two objects in measured gap respectively, when the gap size between two objects changes, the resistance of slide rheostat can change, and the control display device being connected with slide rheostat can the gap size to object accurately measured, solve the problems, such as accurately can not accurately measure gap size since the gap of object is smaller.And the size value in gap can directly be shown in a manner of digital display by controlling display device, so as to reduce the possibility of artificial reading error.
Description
Technical field
The utility model relates to general field of hardware, in particular to a kind of clearance measurement tool.
Background technique
Length dimension measuring tool is the work that engineering goods are commonly used during design process, checking process, check
Tool, is part indispensable in engineering.But some important fit dimensions are because operating space is narrow, inconvenient is not available
Conventional side measuring tool directly measures.There is the problems such as measurement is inaccurate, and measurement error is big again using indirect measurement method.
For example, door sealing gap is the principal element for influencing closing of the door speed during the research of door design of vehicle,
But it is narrow that there are operating spaces in door sealing gap, leads to not the problems such as measuring using direct measuring method, if using
Filler, such as plasticine are measured indirectly, and that there are measurement errors is big, measure inaccurate problem.
Utility model content
The utility model is intended to solve one of above-mentioned technical problem in the prior art at least to a certain extent.For this purpose,
The utility model proposes a kind of clearance measurement tool, which is flexible piece, can be carried out to narrow space region
The measurement in gap.
It include the first measuring head and the second measuring head, sliding variable resistance according to the clearance measurement tool of the utility model embodiment
Device and control display device, the slide rheostat are arranged between first measuring head and second measuring head, with
First measuring head and second measuring head are connected, the gap between first measuring head and second measuring head
When variation, the resistance value of the slide rheostat changes therewith, and the control display device is electrically connected with the slide rheostat,
And the gap for being changed into the resistance value of the slide rheostat between first measuring head and second measuring head
Value.
According to the clearance measurement tool of the utility model embodiment, the first measuring head and the second measuring head can respectively with quilt
Two objects point in measurement gap are fixedly connected, and are additionally provided with slide rheostat between the first measuring head and the second measuring head, when
When gap size between two objects changes, the resistance of slide rheostat can change, and and slide rheostat
Connected control display device can the gap size to object accurately measured, solve since the gap of object is smaller and
The problem of accurately gap size can not accurately being measured.And between controlling display device and can directly being shown in a manner of digital display
The size value of gap, so as to reduce the possibility of artificial reading error.
Some embodiments according to the present utility model, the slide rheostat include: metallic rod and probe, the metallic rod
It is connect with first measuring head, the probe is connect with second measuring head, one end of the probe and the metallic rod
It is slidably connected, to change the resistance value of the slide rheostat.
Further, the probe includes: probe sleeve and probe bodies, and the probe sleeve setting is surveyed described second
Measure head towards on the surface of first measuring head, the probe bodies be arranged in the probe sleeve far from described second
One end of measuring head, and one end of the probe bodies is fixed with the probe sleeve, the other end is contacted with the metallic rod.
The both ends of some embodiments according to the present utility model, the control display device and the slide rheostat are logical
It crosses signal transfer line to be connected, the resistance value of the slide rheostat is passed to the control display dress by the signal transfer line
It sets, the resistance value of the slide rheostat is changed into first measuring head and second measurement by the control display device
Gap width between head, and the gap width is shown in the instrument of the control display device.
Further, the control display device and first measuring head, second measuring head are passed by signal
Line is passed to be connected.
Specifically, the control display device provides constant voltage for the slide rheostat.
Further, it is connected with ammeter on the signal transfer line, to measure the current value of the slide rheostat, root
The resistance value of the slide rheostat is obtained according to the constant voltage and the current value.
Magnetic is provided in some embodiments according to the present utility model, first measuring head and second measuring head
Property element, is adsorbed on the first metal plate surface for first measuring head, second measuring head is adsorbed on the second metal plate table
Face, the clearance measurement tool are used to measure the gap between first metal plate and second metal plate.
Further, the clearance measurement tool is used to measure the seal clearance between the shutter member of vehicle and fixing piece,
Wherein, first metal plate is the fixing piece, and second metal plate is the shutter member.
Specifically, the fixing piece is side wall metal plate, and the shutter member is car door metal plate.
Detailed description of the invention
Fig. 1 is the schematic diagram of clearance measurement tool；
Fig. 2 is the schematic diagram of slide rheostat；
Fig. 3 is the principle schematic diagram of slide rheostat；
Fig. 4 is the schematic diagram in clearance measurement tool measurement car door gap.
Appended drawing reference:
Clearance measurement tool 10, the second measuring head 2, slide rheostat 3, metallic rod 31, probe 32, is visited first measuring head 1
Needle sleeve 321, probe bodies 322, control display device 4, signal transfer line 41, ammeter 42, side wall metal plate 5, car door metal plate
6。
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection is also possible to be electrically connected or can communicate with each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship of two elements be can be.For those of ordinary skill in the art
For, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Clearance measurement tool 10 below with reference to Fig. 1-Fig. 4 detailed description according to the utility model embodiment, clearance measurement
Tool 10 can be used for measuring the gap size between two objects, it can also be used to measure between two separate sections of same object
Gap size.It is convenient following for description, by taking the gap size that clearance measurement tool 10 measures between two objects as an example
It is illustrated.
It include the first measuring head 1 and second according to the clearance measurement tool 10 of the utility model embodiment shown in referring to Fig.1
Measuring head 2, slide rheostat 3 and control display device 4, the first measuring head 1 and the second measuring head 2 are flat metal
Part, and the first measuring head 1 can be fixedly connected with two objects of the separation in measured gap respectively with the second measuring head 2；It is sliding
Dynamic rheostat 3 is scalable component, and slide rheostat 3 can change the resistance of itself, so as to change by sliding variable resistance
The current values of device 3；Control display device 4 can issue fixed voltage value, and control display device 4 can also will by from
The current value of body is changed into distance values, and line number of going forward side by side is aobvious, to can measure between two objects for clearance measurement tool 10
Gap provide possibility.
It should be noted that term " first ", " second " are used for description purposes only, it is not understood to indicate or imply phase
To importance or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be with
Explicitly or implicitly include one or more of the features.The meaning of " plurality " is extremely in the description of the present invention,
It is two few, such as two, three etc., unless otherwise specifically defined.
Specifically, as Figure 1 and Figure 4, slide rheostat 3 is arranged between the first measuring head 1 and the second measuring head 2, with
Connect the first measuring head 1 and the second measuring head 2, that is to say, that the both ends of slide rheostat 3 respectively with the first measuring head 1 and
Two measuring heads 2 are fixedly connected, to realize being indirectly connected with for the first measuring head 1 and the second measuring head 2, specifically, first is measured
First 1 is fixedly connected with a part (metallic rod 31 i.e. mentioned below) telescopic in slide rheostat 3, the second measuring head 2
It is fixedly connected with another part telescopic in slide rheostat 3 (probe 32 i.e. mentioned below), to realize that first surveys
It is transformable for measuring the distance between head 1 and the second measuring head 2.
Further, when the gap variation between the first measuring head 1 and the second measuring head 2, the resistance of slide rheostat 3
Value changes therewith, and control display device 4 is electrically connected with slide rheostat 3, and for the resistance value of slide rheostat 3 to be changed into
Gap width between first measuring head 1 and the second measuring head 2, thus guarantee clearance measurement tool 10 can size to gap into
Row measurement, and the size value in gap can directly be shown in a manner of digital display in control display device 4, with stem-winder
It is accurate compared to more intuitive to show, it is possible to reduce the possibility of artificial reading error.
In a particular embodiment, when the gap between two objects of measured gap is smaller, flat first is surveyed
Amount head 1 and the second measuring head 2 are extend into gap, and are fixedly connected respectively with two objects, and one of object is then pushed
(shutter member i.e. mentioned below), therefore, the slide rheostat 3 between the first measuring head 1 and the second measuring head 2 occur
Flexible, so that the resistance in slide rheostat 3 changes, the control display device 4 being electrically connected with slide rheostat 3 can be shown
Gap width between first measuring head 1 and the second measuring head 2 is shown, and then completes the measurement of small gap size.
According to the clearance measurement tool 10 of the utility model embodiment, the first measuring head 1 and the second measuring head 2 can be distinguished
It is fixedly connected with two objects in measured gap, is additionally provided with slide rheostat between the first measuring head 1 and the second measuring head 2
3, when the gap size between two objects changes, the resistance of slide rheostat 3 can change, and become with sliding
The connected control display device 4 of resistance device 3 can the gap size to object accurately measured, solve the gap due to object
It is smaller and the problem of accurately can not accurately measure gap size.And controlling display device 4 can be directly in a manner of digital display
The size value in gap is shown, so as to reduce the possibility of artificial reading error.
Further, it as shown in Fig. 2, slide rheostat 3 may include: metallic rod 31 and probe 32, metallic rod 31 and visits
Needle 32 is scalable connection, and in other words, probe 32 can slide in metallic rod 31, and specifically, metallic rod 31 and probe 32 are circle
Cylinder, and metallic rod 31 and probe 32 are coaxial, the telescopic direction of slide rheostat 3 is the axis side of metallic rod 31 and probe 32
To.
Specifically, as Figure 1-Figure 2, the one end (i.e. right end in Fig. 1-Fig. 2) of metallic rod 31 far from probe 32 and the
The connection of one measuring head 1, the one end (i.e. left end in Fig. 1-Fig. 2) of probe 32 far from metallic rod 31 are connect with the second measuring head 2, are visited
One end (i.e. right end in Fig. 1-Fig. 2) of the close metallic rod 31 of needle 32 is slidably connected with metallic rod 31, to change sliding variable resistance
The resistance value of device 3.Therefore, when the distance change of the first measuring head 1 and the second measuring head 2, metallic rod 31 and probe can be made
32 occur opposite sliding, so as to change the resistance value of slide rheostat 3, and then can survey to the first measuring head 1 and second
Gap size between amount head 2 measures.
Further, as shown in Fig. 2, probe 32 may include: probe sleeve 321 and probe bodies 322, probe sleeve
321 are arranged on the surface of the first measuring head 1 of direction of the second measuring head 2, and probe sleeve 321 is arranged in probe bodies 322
The right end that probe sleeve 321 is arranged in one end far from the second measuring head 2, i.e. probe bodies 322, and 322 direction of probe bodies
Metallic rod 31 extends.In a particular embodiment, probe sleeve 321 is the hollow circuit cylinder cavity of one end aperture, and probe bodies 322 are suitable
In the cavity for being located at probe sleeve 321, and the closed end of probe sleeve 321 and the second measuring head 2 are towards slide rheostat 3
Surface is fixedly connected, and probe bodies 322 extend from the opening direction of probe sleeve 321 towards metallic rod 31, so that probe bodies 322
One end and probe sleeve 321 it is fixed, the other end (i.e. free end) is contacted with metallic rod 31, is guaranteed in the first measuring head 1 of change
When at a distance from the second measuring head 2, probe bodies 322 can be slided in metallic rod 31, to change the resistance of slide rheostat 3
Value.As shown in Fig. 2-Fig. 3, probe bodies 322 are perpendicular to the central axis of metallic rod 31, and probe bodies 322 are towards metallic rod
31 radially extend.
In a particular embodiment, probe 32 and metallic rod 31 are mechanical metal part, and therefore, slide rheostat 3 is machinery
Structure, it is ensured that the structure for sliding speed changer is simple, reliable operation.
Further, as shown in Figure 1, the both ends of control display device 4 and slide rheostat 3 pass through signal transfer line 41
It is connected, the resistance value of slide rheostat 3 is passed to control display device 4 by signal transfer line 41, and control display device 4 will be slided
The resistance value of rheostat 3 is changed into the gap width between the first measuring head 1 and the second measuring head 2, and gap width is shown and is being controlled
In the instrument of display device 4 processed, therefore, the signal transfer line 41 controlled between display device 4 and slide rheostat 3 can be set
The length set is longer, is pulled to so as to control display device 4 apart from measured gap remote position, operator is facilitated to see
The numerical value of control display device 4 is examined, the convenience for guaranteeing that clearance measurement tool 10 uses is preferable.
Further, control display device 4 passes through 41 phase of signal transfer line with the first measuring head 1, the second measuring head 2
Even, therefore, when the gap between the first measuring head 1 and the second measuring head 2 changes, second is flowed through from the first measuring head 1
The current value of measuring head 2 changes, and is transferred in control display device 4, so as to survey to the first measuring head 1 and second
Gap size between amount head 2 measures.
Specifically, control display device 4 can provide constant voltage for slide rheostat 3, mention for clearance measurement tool 10
Be supplied with electric power power, guarantees that clearance measurement tool 10 can operate normally.Display device 4 is controlled by setting, is being not required to additional power supply
In the case where, it can realize and the gap of article is measured, facilitate the use of clearance measurement tool 10.
Further, it is connected with ammeter 42 on signal transfer line 41, to measure the current value of slide rheostat 3, according to
Constant voltage and current value obtain the resistance value of slide rheostat 3.
In a particular embodiment, after slide rheostat 3 stretches, pass through formula:Sliding variable resistance can be calculated
The resistance R value of device 3；Wherein U is the input constant voltage values for controlling display device 4, I is current value measured by ammeter 42；
The measuring range of clearance measurement tool 10: the maximum length that slide rheostat 3 is slided is measurement longest dimension Lmax, sliding
The shortest dimension of rheostat 3 is to measure minimum dimension Lmin, the sliding distance La of slide rheostat 3, slide rheostat 3 most
Big resistance value Rmax.Resistance R and measurement gap L pass through formula:L=La+Lmin is calculated.
Further, it is provided with magnetic element in the first measuring head 1 and the second measuring head 2, the first measuring head 1 is inhaled
It is attached to the first metal plate surface, the second measuring head 2 is adsorbed on the second metal plate surface, in a particular embodiment, it is only necessary to be surveyed first
Amount head 1 and the second measuring head 2 are placed between the first metal plate surface of object to be measured and the second metal plate surface, and first surveys
Amount head 1 and the second measuring head 2 can be adsorbed on the first metal plate surface and the second metal plate surface, to realize the first measuring head 1
With the fixation of the second measuring head 2, so that guaranteeing can gap between the first metal plate surface and the second metal plate surface to object
It measures.
By being respectively provided with magnetic element in the first measuring head 1 and the second measuring head 2, in practical applications, the first measurement
First 1 and second measuring head 2 without the auxiliary of other component or hand-held, the first measuring head 1 and the second measuring head 2 can be carried out
It is fixed, it is ensured that clearance measurement tool 10 is easy to use, quick, reliable.
Further, clearance measurement tool 10 is used to measure the gap between the first metal plate and the second metal plate, to guarantee
The Numerical accuracy detected of clearance measurement tool 10 is high.
Further, clearance measurement tool 10 can be used for measuring the seal clearance between the shutter member of vehicle and fixing piece,
Wherein, the first metal plate is fixing piece, and the second metal plate is shutter member, to solve the sealing between the shutter member of vehicle and fixing piece
When gap is smaller, the problem of size in gap can not be measured accurately.Certainly, clearance measurement tool 10 can be equally used for other machines
The clearance measurement of tool product, for example, Machine Tool design or precision machine design it is medium.
Specifically, fixing piece is side wall metal plate 5, and shutter member is car door metal plate 6.In a particular embodiment, car door in vehicle
Car door metal plate 6 and side wall metal plate 5 before seal clearance belong to indirect measurable region, and belong to critical size, it is conventional
Detection record be necessary.Clearance measurement tool 10 is only needed for the first measuring head 1 to be fixed on the surface of side wall metal plate 5, be incited somebody to action
Second measuring head 2 is fixed on the surface of car door metal plate 6, and signal transfer line 41 is then extended measured zone, slowly closing
Car door metal plate 6 after the numerical stability shown in display device 4 to be controlled, records of values is recorded, just to closed state
The seal clearance size value between accurate car door metal plate 6 and side wall metal plate 5 can be obtained.Clearance measurement tool 10 can also be used to survey
The gap between engine compartment cover and enging cabin is measured, the case where for using clearance measurement tool 10 to measure other gaps, this
In will not enumerate.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is contained at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms
Necessarily it is directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.In addition, those skilled in the art can be by this
Different embodiments or examples described in specification are engaged and are combined.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of clearance measurement tool characterized by comprising
First measuring head and the second measuring head；
Slide rheostat, the slide rheostat are arranged between first measuring head and second measuring head, with connection
First measuring head and second measuring head, when the gap variation between first measuring head and second measuring head
When, the resistance value of the slide rheostat changes therewith；
Display device is controlled, the control display device is electrically connected with the slide rheostat, and is used for the sliding variable resistance
The resistance value of device is changed into the gap width between first measuring head and second measuring head.
2. clearance measurement tool according to claim 1, which is characterized in that the slide rheostat includes:
Metallic rod, the metallic rod are connect with first measuring head；
Probe, the probe are connect with second measuring head, and one end of the probe is slidably connected with the metallic rod, to change
Become the resistance value of the slide rheostat.
3. clearance measurement tool according to claim 2, which is characterized in that the probe includes: probe sleeve and probe
Ontology, the probe sleeve be arranged in second measuring head towards on the surface of first measuring head, the probe sheet
One end far from second measuring head of the probe sleeve, and one end of the probe bodies and the probe is arranged in body
Sleeve is fixed, and the other end is contacted with the metallic rod.
4. clearance measurement tool according to claim 1, which is characterized in that the control display device and the sliding become
The both ends of resistance device pass through signal transfer line and are connected, and the resistance value of the slide rheostat is passed to institute by the signal transfer line
State control display device, the control display device by the resistance value of the slide rheostat be changed into first measuring head and
Gap width between second measuring head, and the gap width is shown in the instrument of the control display device.
5. clearance measurement tool according to claim 4, which is characterized in that the control display device and described first is surveyed
Amount head, second measuring head pass through signal transfer line and are connected.
6. clearance measurement tool according to claim 4 or 5, which is characterized in that the control display device is the cunning
Dynamic rheostat provides constant voltage.
7. clearance measurement tool according to claim 6, which is characterized in that be connected with electric current on the signal transfer line
Table obtains the sliding according to the constant voltage and the current value and becomes to measure the current value of the slide rheostat
Hinder the resistance value of device.
8. clearance measurement tool according to claim 1, which is characterized in that first measuring head and second measurement
It is provided with magnetic element on head, first measuring head is adsorbed on the first metal plate surface, inhales second measuring head
It is attached to the second metal plate surface, the clearance measurement tool is between measuring between first metal plate and second metal plate
Gap.
9. clearance measurement tool according to claim 8, which is characterized in that the clearance measurement tool is for measuring vehicle
Shutter member and fixing piece between seal clearance, wherein first metal plate be the fixing piece, second metal plate is institute
State shutter member.
10. clearance measurement tool according to claim 9, which is characterized in that the fixing piece is side wall metal plate, described to open
Closing member is car door metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920267981.4U CN209689552U (en) | 2019-03-01 | 2019-03-01 | Clearance measurement tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920267981.4U CN209689552U (en) | 2019-03-01 | 2019-03-01 | Clearance measurement tool |
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| Publication Number | Publication Date |
|---|---|
| CN209689552U true CN209689552U (en) | 2019-11-26 |
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ID=68603557
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| CN201920267981.4U Active CN209689552U (en) | 2019-03-01 | 2019-03-01 | Clearance measurement tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272124A (en) * | 2020-03-23 | 2020-06-12 | 北京汽车股份有限公司 | Seal clearance measuring device and seal clearance measuring system |
| CN114234771A (en) * | 2021-11-10 | 2022-03-25 | 华能铜川照金煤电有限公司 | Engine air gap measuring device and measuring method |
-
2019
- 2019-03-01 CN CN201920267981.4U patent/CN209689552U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111272124A (en) * | 2020-03-23 | 2020-06-12 | 北京汽车股份有限公司 | Seal clearance measuring device and seal clearance measuring system |
| CN111272124B (en) * | 2020-03-23 | 2022-07-15 | 北京汽车股份有限公司 | Seal clearance measuring device and seal clearance measuring system |
| CN114234771A (en) * | 2021-11-10 | 2022-03-25 | 华能铜川照金煤电有限公司 | Engine air gap measuring device and measuring method |
| CN114234771B (en) * | 2021-11-10 | 2023-09-19 | 华能铜川照金煤电有限公司 | Engine air gap measuring device and measuring method |
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