CN208962733U - A kind of mechanical drawing teaching aid - Google Patents
A kind of mechanical drawing teaching aid Download PDFInfo
- Publication number
- CN208962733U CN208962733U CN201820027555.9U CN201820027555U CN208962733U CN 208962733 U CN208962733 U CN 208962733U CN 201820027555 U CN201820027555 U CN 201820027555U CN 208962733 U CN208962733 U CN 208962733U
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- CN
- China
- Prior art keywords
- guide rod
- horizontal segment
- vertical section
- lower guide
- bolt
- Prior art date
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Abstract
The utility model discloses a kind of mechanical drawing teaching aids, it is being not necessarily to assist oblique line when drawing three-view diagram on blackboard, it can be drawn according to the size relationship between three-view diagram, the upper guide rod and lower guide rod of two L-shaped close structurals are set, the right angle corner of upper guide rod and lower guide rod is oppositely arranged, the horizontal segment of the above guide rod is moved up and down along the vertical section of lower guide rod, draw out main view and the equal length of top view, the vertical section of the above guide rod is moved left and right along the horizontal segment of lower guide rod, draw out main view and the equal height of left view, the vertical section of following guide rod is moved up and down along the horizontal segment of upper guide rod, vertically above the vertical section of guide rod moves left and right the horizontal segment of guide rod under cooperating, draw out left view and the equal width of top view, convenient for operation, it is convenient and efficient.
Description
Technical field
The utility model belong to mechanical drawing tool technical field more particularly to a kind of mechanical drawing teaching aid.
Background technique
Mechanical drawing is that mechanical planform, size, working principle and technical requirements are definitely indicated with pattern
Subject.Pattern is made of figure, symbol, text and number etc., is that design of expression is intended to and manufacture requires and exchanges experience
Technological document is commonly referred to as the language of engineering circles.
And in mechanical drawing, in order to express clearly the geometry of component of machine, generally drawn using three-view diagram
Tabulation is stated.Three-view diagram can correctly reflect orthographic projection engineering drawing (main view, top view, the left view of object length size
Three basic views) it is three-view diagram, this is a kind of pair of geometry of objects of engineering circles abstract expression mode sanctified by usage.Three views
In figure, the length of main view and top view wants equal, and the height of main view and left view wants equal, and the width of left view and top view wants phase
Deng.
In teaching process, three-view diagram generally uses ruler to carry out when drawing on blackboard, but between drawing three views
Identical size when, need to carry out by an inclined auxiliary line, it is inconvenient, large error is easy to produce, so that three views
Ratio between figure is uncoordinated, influences teaching efficiency.
Utility model content
For the above existing problem, the utility model provides a kind of mechanical drawing teaching aid, is drawing on blackboard
Without assisting oblique line when three-view diagram processed, can be drawn according to the size relationship between three-view diagram, setting two is L-shaped close
The right angle corner of the upper guide rod of structure and lower guide rod, upper guide rod and lower guide rod is oppositely arranged, the water of the above guide rod
Flat section is moved up and down along the vertical section of lower guide rod, draws out main view and the equal length of top view, the above guide rod
Vertical section is moved left and right along the horizontal segment of lower guide rod, draws out main view and the equal height of left view, following guide rod
Vertical section moved up and down along the horizontal segment of upper guide rod, cooperate the vertical section of the vertical upper guide rod of the horizontal segment of lower guide rod
It moves left and right, draws out left view and the equal width of top view.
The technical solution of the utility model is:
The utility model provides a kind of mechanical drawing teaching aid, including lower guide rod, lower horizontal scale and lower vertical scale,
In inverted L shape structure and horizontal segment, horizontal extension, the horizontal segment left end of the lower guide rod are institute to the lower guide rod horizontally to the right
At the right angle corner for stating lower guide rod, the vertical section of the lower guide rod extends straight down from the left end of horizontal segment, under described
The horizontal segment of guide rod and the equal length of vertical section, on the lower guide rod before the front end face upper end of horizontal segment and vertical section
End face left end is respectively arranged with the lower horizontal scale and the lower vertical scale, the lower horizontal scale and the lower vertical quarter
The joint spent at the right angle corner of the lower guide rod is zero point, is fitted with and leads on the front end face of the lower guide rod
To bar, L-shaped structure and horizontal segment to the left horizontal extension of the upper guide rod in overturning, the horizontal segment right end of the upper guide rod
At right angle corner for upper guide rod, the vertical section of the upper guide rod is upwardly extended from the right end vertical of horizontal segment, it is described on
The horizontal segment of guide rod and the equal length of vertical section, the horizontal segment and vertical section of the upper guide rod respectively with the lower guiding
The vertical section and horizontal segment of bar vertically stick together, opposite at the right angle corner of the upper guide rod and the lower guide rod；
The front end face upper end of horizontal segment and the front end face left end of vertical section are respectively arranged with level on the upper guide rod
The zero point of scale and upper vertical scale, the upper horizontal scale and the upper vertical scale is respectively at water on the upper guide rod
The left end of flat section and the upper end of vertical section；
Perforation is provided with pilot hole from front to back on the upper guide rod, is provided with cross from front to back on the lower guide rod
Section is in the lower pilot hole of inverted T-shaped structure, and the upper pilot hole and the lower pilot hole are respectively along the upper guide rod and institute
The direction that lower guide rod extends is stated to extend, the lower pilot hole respectively on the lower guide rod horizontal segment right end and vertical section
Lower end be in communication with the outside；
Be respectively embedded into the lower pilot hole the first inversion bolt and second be inverted bolt, it is described first be inverted bolt and
The second inversion bolt is turret head in handstand shape and the rear end that is respectively embedded into the lower pilot hole, and described first is inverted spiral shell
Linear extension and front end are each passed through the vertical section and level of the upper guide rod from back to front for bolt and the second inversion bolt
Section, the first inversion bolt is nested with the second inversion front end of bolt and is threaded with first-hand nutting and second
The front end face of the rear end face and the upper guide rod of hand nutting, the first-hand nutting and second-hand's nutting reclines
Together.
Further, the horizontal segment right end of the lower guide rod and vertical section lower end recline respectively the first plugging block and
It is respectively perpendicular in two plugging blocks, first plugging block and second plugging block through there is several first connection bolts and the
Two connection bolts, the first connection bolt and the second connection bolt are respectively by first plugging block and second envelope
Sprue is fastened on the lower guide rod.
The utility model is allowed to specific positive beneficial effect compared with prior art due to using above-mentioned technology are as follows:
1, the utility model is being not necessarily to assist oblique line when drawing three-view diagram on blackboard, can be according to the ruler between three-view diagram
Very little relationship is drawn.
2, the upper guide rod and lower guide rod of two L-shaped close structurals is arranged in the utility model, and upper guide rod is led under
It is oppositely arranged to the right angle corner of bar, the horizontal segment of the above guide rod is moved up and down along the vertical section of lower guide rod, is drawn out
Main view and the equal length of top view, the vertical section of the above guide rod are moved left and right along the horizontal segment of lower guide rod, are drawn
Main view and the equal height of left view, the vertical section of following guide rod move up and down along the horizontal segment of upper guide rod, match out
The vertical section for closing the vertical upper guide rod of the horizontal segment of lower guide rod moves left and right, and draws out left view and the equal width of top view
Degree.
3, the utility model structure is safe and reliable, has good market prospects.
4, the utility model good product performance, long service life.
5, the utility model is easy to use, convenient and efficient.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlargement diagram in Fig. 1 at A.
In figure: the upper pilot hole of 1-, the upper guide rod of 2-, the first-hand nutting of 3-, 4- first are inverted bolt, horizontal quarter under 5-
It spends, the first plugging block of 6-, the connection bolt of 7- first, pilot hole under 8-, guide rod under 9-, the connection bolt of 10- second, 11- second
Plugging block, vertical scale under 12-, 13- turret head, 14- second-hand's nutting, the upper horizontal scale of 15-, 16- second are inverted bolt,
The upper vertical scale of 17-.
Specific embodiment
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality
It is described in detail with novel.Following disclosure provides many different embodiments or example is used to realize the utility model
Different structure.In order to simplify the disclosure of the utility model, hereinafter the component of specific examples and setting are described.In addition,
The utility model can in different examples repeat reference numerals and/or letter.This repetition is for simplified and clear mesh
, the relationship between discussed various embodiments and/or setting itself is not indicated.It should be noted that illustrated in the accompanying drawings
Component is not drawn necessarily to scale.The description to known assemblies and treatment technology and process is omitted to avoid not in the utility model
Necessarily limit the utility model.
In addition, in the description of the present invention, it should be noted that term " center ", "center", "upper", "lower",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
As shown in attached drawing 1- attached drawing 2, the utility model provides a kind of mechanical drawing teaching aid, including lower guide rod 9, is lauched
Flat scale 5 and lower vertical scale 12, lower guide rod 9 is in inverted L shape structure and horizontal segment horizontal extension horizontally to the right, lower guide rod 9
Horizontal segment left end be lower guide rod 9 right angle corner at, the vertical section of lower guide rod 9 is prolonged straight down from the left end of horizontal segment
It stretches, the horizontal segment of lower guide rod 9 and the equal length of vertical section, the front end face upper end of horizontal segment and vertical section on lower guide rod 9
Front end face left end be respectively arranged with lower horizontal scale 5 and lower vertical scale 12, lower horizontal scale 5 and lower vertical scale 12 are under
Joint at the right angle corner of guide rod 9 is zero point, is fitted with guide rod 2 on the front end face of lower guide rod 9, above leads
To bar 2, in the L-shaped structure and horizontal segment overturn, horizontal extension, the horizontal segment right end of upper guide rod 2 are the straight of upper guide rod 2 to the left
The vertical section of angle corner, upper guide rod 2 is upwardly extended from the right end vertical of horizontal segment, the horizontal segment of upper guide rod 2 and vertical
The equal length of section, the horizontal segment and vertical section of upper guide rod 2 respectively with the vertical section of lower guide rod 9 and horizontal segment is vertical reclines
Together, upper guide rod 2 is opposite at the right angle corner of lower guide rod 9；
The front end face upper end of horizontal segment and the front end face left end of vertical section are respectively arranged with horizontal scale on upper guide rod 2
15 and upper vertical scale 17, the zero point of upper horizontal scale 15 and upper vertical scale 17 is respectively at horizontal segment on guide rod 2
The upper end of left end and vertical section；
Perforation is provided with pilot hole 1 from front to back on upper guide rod 2, is provided with cross section from front to back on lower guide rod 9
In the lower pilot hole 8 of inverted T-shaped structure, upper pilot hole 1 and lower pilot hole 8 extend respectively along upper guide rod 2 and lower guide rod 9
Direction extend, the right end of horizontal segment and the lower end of vertical section are in communication with the outside lower pilot hole 8 on lower guide rod 9 respectively；
It has been respectively embedded into the first inversion bolt 4 and second in lower pilot hole 8 and has been inverted bolt 16, first is inverted bolt 4 and the
Two inversion bolts 16 are turret head 13 in handstand shape and the rear end that is respectively embedded into lower pilot hole 8, and first is inverted bolt 4 and second
Being inverted bolt 16, linear extension and front end are each passed through the vertical section and horizontal segment of guide rod 2 from back to front, and first is inverted spiral shell
Bolt 4 is nested with the second inversion front end of bolt 16 and is threaded with first-hand nutting 3 and second-hand's nutting 14, first-hand
The rear end face of nutting 3 and second-hand's nutting 14 and the front end face of upper guide rod 2 stick together.
The horizontal segment right end of lower guide rod 9 and vertical section lower end recline respectively the first plugging block 6 and the second plugging block 11,
It is respectively perpendicular to run through in first plugging block 6 and the second plugging block 11 and has several first connection bolts 7 and the second connection bolt
10, the first plugging block 6 and the second plugging block 11 are fastened on lower guiding respectively by the first connection bolt 7 and the second connection bolt 10
On bar 9 so that the first plugging block 6 and the second plugging block 11 block lower pilot hole 8 on lower guide rod 9 right end of horizontal segment and
The port that the lower end of vertical section is in communication with the outside avoids that the first connection bolt 7 and second is made to connect bolt 10 when in use
Turret head 13 is skidded off from lower pilot hole 8 and is led to the problem of inconvenient.
By using above-mentioned technical proposal, it is being not necessarily to assist oblique line when drawing three-view diagram on blackboard, it can be according to three views
Size relationship between figure is drawn, and the upper guide rod 2 and lower guide rod 9 of two L-shaped close structurals, upper guide rod is arranged
2 and the right angle corner of lower guide rod 9 be oppositely arranged, the horizontal segment of the above guide rod 2 moves down in the vertical section along lower guide rod 9
It is dynamic, main view and the equal length of top view are drawn out, the vertical section of the above guide rod 2 is left along the horizontal segment of lower guide rod 9
Move right, draw out main view and the equal height of left view, the vertical section of following guide rod 9 along upper guide rod 2 level
Section moves up and down, and the vertical section of the vertical upper guide rod 2 of the horizontal segment of lower guide rod 9 is cooperated to move left and right, draw out left view and
The equal width of top view；Wherein, the sliding by turret head 13 in lower pilot hole 8, so that upper guide rod 2 and lower guide rod
The 9 opposite changing of the relative positions.
In the description of the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " company
Connect ", " fixation " 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；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element.And the material side used by each components of the utility model
Face can be using spring steel material if the components with the description of " elasticity " term, can also be using rubber material
Matter；If the components with the description of " rigidity " term, can be using steel material, can also be using hard engineering plastic
Expect material.For the ordinary skill in the art, above-mentioned term can be understood in the utility model according to concrete condition
In concrete meaning.
One embodiment of the utility model is described in detail above, but the content is only the utility model
Preferred embodiment should not be considered as limiting the scope of the present invention.It is all to be made according to application scope of the utility model
All the changes and improvements etc., should still belong within the patent covering scope of the utility model.
Claims (2)
1. a kind of mechanical drawing teaching aid, including lower guide rod, lower horizontal scale and lower vertical scale, the lower guide rod is in
Horizontal extension, the horizontal segment left end of the lower guide rod are the right angle of the lower guide rod horizontally to the right for L shape structure and horizontal segment
The vertical section of corner, the lower guide rod extends straight down from the left end of horizontal segment, the horizontal segment of the lower guide rod and
The equal length of vertical section, the front end face upper end of horizontal segment and the front end face left end of vertical section are respectively set on the lower guide rod
It is lauched flat scale and the lower vertical scale described in having, the lower horizontal scale and the lower vertical scale are in the lower guide rod
Right angle corner at joint be zero point, it is characterised in that: be fitted with guide rod on the front end face of the lower guide rod,
In the L-shaped structure and horizontal segment overturn, horizontal extension, the horizontal segment right end of the upper guide rod are upper to the upper guide rod to the left
At the right angle corner of guide rod, the vertical section of the upper guide rod is upwardly extended from the right end vertical of horizontal segment, the upper guiding
The horizontal segment of bar and the equal length of vertical section, the horizontal segment and vertical section of the upper guide rod respectively with the lower guide rod
Vertical section and horizontal segment vertically stick together, opposite at the right angle corner of the upper guide rod and the lower guide rod；
The front end face upper end of horizontal segment and the front end face left end of vertical section are respectively arranged with horizontal scale on the upper guide rod
With upper vertical scale, the zero point of the upper horizontal scale and the upper vertical scale is respectively at horizontal segment on the upper guide rod
Left end and vertical section upper end；
Perforation is provided with pilot hole from front to back on the upper guide rod, is provided with cross section from front to back on the lower guide rod
In the lower pilot hole of inverted T-shaped structure, the upper pilot hole and the lower pilot hole respectively along the upper guide rod and it is described under
The direction that guide rod extends extends, and the lower pilot hole is respectively on the lower guide rod under the right end and vertical section of horizontal segment
End is in communication with the outside；
It has been respectively embedded into the first inversion bolt and second in the lower pilot hole and has been inverted bolt, described first is inverted bolt and described
Second inversion bolt is turret head in handstand shape and the rear end that is respectively embedded into the lower pilot hole, described first be inverted bolt and
Linear extension and front end are each passed through the vertical section and horizontal segment of the upper guide rod, institute to the second inversion bolt from back to front
State that the first inversion bolt is nested with the second inversion front end of bolt and to be threaded with first-hand nutting and second-hand stubborn
The rear end face of nut, the first-hand nutting and second-hand's nutting and the front end face of the upper guide rod stick on one
It rises.
2. a kind of mechanical drawing teaching aid according to claim 1, it is characterised in that: the horizontal segment of the lower guide rod is right
End and vertical section lower end recline have the first plugging block and the second plugging block respectively, first plugging block and second plugging block
On be respectively perpendicular through have several first connection bolts and second connection bolt, it is described first connection bolt and it is described second connect
First plugging block and second plugging block are fastened on the lower guide rod by connecting bolt respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820027555.9U CN208962733U (en) | 2018-01-08 | 2018-01-08 | A kind of mechanical drawing teaching aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820027555.9U CN208962733U (en) | 2018-01-08 | 2018-01-08 | A kind of mechanical drawing teaching aid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208962733U true CN208962733U (en) | 2019-06-11 |
Family
ID=66746447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820027555.9U Expired - Fee Related CN208962733U (en) | 2018-01-08 | 2018-01-08 | A kind of mechanical drawing teaching aid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208962733U (en) |
-
2018
- 2018-01-08 CN CN201820027555.9U patent/CN208962733U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190611 Termination date: 20210108 |