CN108297580B - Telescopic measuring and drawing gauge - Google Patents
Telescopic measuring and drawing gauge Download PDFInfo
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- CN108297580B CN108297580B CN201810093763.3A CN201810093763A CN108297580B CN 108297580 B CN108297580 B CN 108297580B CN 201810093763 A CN201810093763 A CN 201810093763A CN 108297580 B CN108297580 B CN 108297580B
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 47
- 239000010959 steel Substances 0.000 claims abstract description 47
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L9/00—Circular curve-drawing or like instruments
- B43L9/02—Compasses
- B43L9/025—Compasses with parallel legs
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/08—Measuring arrangements characterised by the use of mechanical techniques for measuring diameters
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- General Physics & Mathematics (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a telescopic measuring and drawing gauge which comprises a cross ruler and two movable rulers, wherein the two movable rulers are slidably sleeved on the cross ruler; each movable ruler is slidably sleeved with a sliding sleeve, and a second positioning device is arranged between each movable ruler and the sliding sleeve; a vertical rod is vertically assembled on each sliding sleeve in a sliding mode, and a third positioning device is arranged between each sliding sleeve and each vertical rod; a steel needle or a line drawing pen is arranged at the lower end of each vertical rod, and a fourth positioning device is arranged between the steel needle or the line drawing pen and the vertical rod. The telescopic measuring and drawing gauge is suitable for centering annular surfaces with different heights on the center and the periphery, combines the gauge and the drawing line into a whole, can realize the functions of measuring and drawing the line under the condition of not replacing tools, and can be used for accurately drawing the line of the fan-shaped hole in the middle of the chain wheel model.
Description
Technical Field
The invention belongs to the technical field of model processing, and particularly relates to a telescopic measuring and drawing gauge.
Background
When the fan-shaped hole in the middle of the chain wheel model is manufactured, the fan-shaped hole is not easy to draw due to the existence of the middle hub, even if the compasses are used for drawing by adopting a high-position line drawing method, the accuracy of the size of the compasses is not easy to measure, the compasses can be hindered by the outer ring of the chain wheel model when being used for measuring the inner clamp, and the compasses can be hindered by the hub of the chain wheel model when being used for measuring the outer clamp.
Disclosure of Invention
In order to solve the problems, the invention provides a telescopic measuring and drawing gauge which can realize accurate line drawing of a fan-shaped hole in the middle of a chain wheel model.
In order to achieve the above object, the present invention adopts the following technical solutions.
A scalable metrological gauge comprising: the scale comprises a transverse ruler and two movable rulers which are sleeved on the transverse ruler in a sliding manner, scale marks are respectively marked on the transverse ruler and the movable rulers, the two movable rulers can respectively slide towards two ends of the transverse ruler, and a first positioning device is arranged between the movable rulers and the transverse ruler; each movable ruler is slidably sleeved with a sliding sleeve, and a second positioning device is arranged between each movable ruler and the corresponding sliding sleeve; a vertical rod is vertically assembled on each sliding sleeve in a sliding mode, and a third positioning device is arranged between each sliding sleeve and each vertical rod; every the lower extreme of vertical pole is provided with the steel needle or the setting-out pen, the steel needle or the setting-out pen with be provided with fourth positioner between the vertical pole.
According to the telescopic measuring and drawing gauge, the two movable rulers can slide on the transverse ruler, the movable rulers and the transverse ruler are both marked with scale marks, and when the two movable rulers do not slide on the transverse ruler, the scale marks of the two movable rulers are aligned with the scale marks on the transverse ruler; the two sliding sleeves can slide on the movable rulers, a steel needle is installed at the lower end of a vertical rod on one sliding sleeve, a line drawing pen is installed at the lower end of a vertical rod on the other sliding sleeve, the horizontal distance between the steel needle and the line drawing pen can be roughly adjusted by adjusting the sliding distance of the two movable rulers on the transverse ruler, and the horizontal distance between the steel needle and the line drawing pen can be accurately adjusted by adjusting the distance between the two sliding sleeves on the movable rulers after rough adjustment; the vertical rod can slide up and down in the sliding sleeve, so that the height difference between the steel needle and the line drawing pen can be conveniently adjusted, and the vertical distance between the steel needle and the line drawing pen can be realized. When drawing the fan-shaped hole on the chain wheel model, firstly, a vertical rod is positioned at the circle center position of the hub part of the chain wheel model by using a steel needle, then, another vertical rod, a movable ruler and a sliding sleeve are adjusted on a transverse ruler, and when a line drawing pen is ensured to be in contact with the rim part of the chain wheel model, the transverse ruler and the movable ruler are in a horizontal state, and meanwhile, the position of the line drawing pen can be accurately positioned by referring to scales on the transverse ruler and the movable ruler, and then, the line drawing pen draws the inner arc edge and the outer arc edge of the fan-shaped hole by using the steel needle as the.
The telescopic measuring and drawing gauge integrates the gauge and the drawing line, can realize the functions of measurement and drawing line under the condition of not changing tools, can transversely stretch and realize the size change in the length direction so as to measure the sizes of different diameters; the measuring and drawing gauge can also longitudinally stretch and retract, size change in the height direction is realized, sizes of different depths can be measured, and the specification and the application of the measuring and drawing gauge are greatly expanded.
In addition, the scalable measuring and drawing gauge provided by the invention can have the following additional technical characteristics:
preferably, the first positioning device comprises a U-shaped guide rod and a positioning pin, and the upper end of the positioning pin is provided with a guide hole; one end of the U-shaped guide rod is fixedly connected to the movable ruler, the other end of the U-shaped guide rod extends into the guide hole, a thread is arranged in the middle of one end of the U-shaped guide rod, which extends into the guide hole, a nut is assembled on the thread, a spring sleeved on the U-shaped guide rod is fixedly connected to the nut, and the spring is connected with the end part of the positioning pin; the movable ruler is provided with a through hole, the transverse ruler is provided with a plurality of positioning grooves, and the positioning pin penetrates through the through hole to be matched with the positioning grooves.
According to the telescopic measuring and drawing gauge, one end of the U-shaped guide rod can be welded on the movable ruler, and the end, provided with the threads, of the U-shaped guide rod is shorter in length; when the length of the cross ruler can meet the horizontal distance between the steel needle and the line drawing pen, one end of the U-shaped guide rod penetrates through a through hole in the movable ruler through a positioning pin connected with a spring and extends into a positioning groove on the innermost side of the cross ruler, and the positioning groove is a conical groove; when the length of the cross ruler can not meet the horizontal distance between the steel needle and the line drawing pen, one or two movable rulers are required to move towards the two sides of the cross ruler respectively, at the moment, under the action of external force, the spring is compressed to drive the positioning pin to move upwards at one end of the U-shaped guide rod, so that the positioning pin slips from the positioning groove, at the moment, the movable ruler can slide on the cross ruler, the horizontal distance between the steel needle and the line drawing pen is lengthened, and after the required distance is reached, the positioning pin enters the positioning groove formed in the cross ruler under the action of the restoring force of the spring, so that the movable ruler and the cross ruler are locked with each other; the function of the swivel nut is to adjust the tension of the spring.
Preferably, a plurality of the positioning grooves are arranged at equal intervals.
According to the telescopic measuring and drawing gauge, the positioning grooves are formed in the cross ruler at equal intervals, the moving distance of the moving ruler on the cross ruler can be quickly known through the number of the positioning grooves, workers can conveniently and quickly determine the rough horizontal distance between the steel needle and the drawing pen, and finally the horizontal distance between the steel needle and the drawing pen can be accurately determined by adjusting the distance of the sliding sleeve on the moving ruler.
Preferably, a transverse sliding hole is formed in the rear side of the sliding sleeve, the sliding sleeve is slidably sleeved on the movable ruler through the transverse sliding hole, a vertical sliding hole is further formed in the front side of the sliding sleeve, and the vertical rod is slidably assembled in the vertical sliding hole.
According to the telescopic measuring and drawing gauge, the transverse sliding holes and the vertical sliding holes in the sliding sleeve are orthogonal in space, so that the transverse ruler, the movable ruler and the vertical rod can be kept vertical. The sliding sleeve can slide along the moving ruler through the transverse sliding hole to adjust the transverse position, and the vertical rod can slide in the vertical sliding hole in the sliding sleeve to adjust the vertical position of the steel needle or the line drawing pen fixed at the lower end of the vertical rod.
Preferably, the second positioning device comprises a first positioning screw and a first screw hole; the first screw hole is formed in the sliding sleeve, the first screw hole is communicated into the transverse sliding hole, and the first positioning screw is matched with the first screw hole.
According to the telescopic measuring and drawing gauge, the end part of the first positioning screw penetrates through the first screw hole in the sliding sleeve and then extends into the transverse sliding hole, so that the first positioning screw can be propped against the movable ruler, and the positions of the two sliding sleeves on the movable ruler can be fixed.
Preferably, the third positioning device is a self-locking mechanism, and the self-locking mechanism comprises a rack and locking helical teeth; the side wall of the vertical rod is provided with the rack, the sliding sleeve is provided with a transverse through hole, the transverse through hole is communicated into the vertical sliding hole, one end of the transverse through hole is provided with a pressure spring bolt, the other end of the transverse through hole is provided with a locking helical tooth, the locking helical tooth is fixedly connected with a compression spring between the pressure spring bolts, and the locking helical tooth extends out of the transverse through hole.
Preferably, an end cover is arranged at the end part of the transverse through hole, a threaded hole is formed in the end cover, and the pressure spring bolt is assembled at one end of the transverse through hole through the threaded hole; be provided with horizontal spout on horizontal through-hole's the inner wall, the tip of pressure spring bolt is provided with the ejector pad, horizontal through-hole's the other end is equipped with the stopper, only lock the skewed tooth set up in the stopper stretches out horizontal through-hole's one end, the ejector pad with be connected with between the stopper compression spring, the ejector pad with the stopper is respectively in slide assembly in the horizontal spout.
According to the telescopic measuring and drawing gauge, the third positioning device is used for fixing the position of the vertical rod relative to the sliding sleeve; a transverse through hole is formed in the sliding sleeve and leads into the vertical sliding hole; an end cover is arranged at the end part of the transverse through hole, a threaded hole is formed in the end cover, a pressure spring bolt is assembled at one end of the transverse through hole through the threaded hole, a push block is arranged at the end part of the pressure spring bolt, the width of the two ends of the push block is larger than the diameter of the threaded hole so as to prevent the pressure spring bolt from falling off from the threaded hole, and the push block is fixedly connected with a compression spring; the inner wall of the transverse through hole is provided with a transverse sliding groove, the limiting block and the push block are assembled in the transverse sliding groove in a sliding mode, when the pressure spring bolt is rotated inwards, the pressure spring bolt enables the push block to slide in the transverse sliding groove towards the direction of the vertical sliding hole, the compression spring is pushed, the compression spring pushes the limiting block to slide in the transverse sliding groove towards the direction of the vertical sliding hole, and therefore locking oblique teeth on the limiting block extend into the space between adjacent racks arranged on the side wall of the vertical rod, and the relative position of the vertical rod and the sliding sleeve is locked; and the compression spring bolt is rotated reversely, the compression spring extends to drive the locking oblique teeth to contract inwards, so that the relative position of the vertical rod and the sliding sleeve is unlocked, and the vertical rod can slide up and down in the sliding sleeve.
Preferably, the third positioning device is a second positioning screw, a second screw hole is formed in the sliding sleeve, the second screw hole leads to the vertical sliding hole, and the second positioning screw is matched with the second screw hole.
According to the telescopic measuring and drawing gauge, the end part of the second positioning screw penetrates through the second screw hole in the sliding sleeve and then extends into the vertical sliding hole, so that the end part of the second positioning screw can be abutted against the vertical rod, and the position of the vertical rod relative to the sliding sleeve can be fixed.
Preferably, the cross section of the moving ruler is a rectangular surface, and the cross section of the transverse sliding hole is matched with the cross section of the moving ruler; the cross section of the vertical rod is a rectangular surface, and the cross section of the vertical sliding hole is matched with that of the vertical rod.
According to the telescopic measuring and drawing gauge, the movable ruler with the rectangular surface section extends into the transverse sliding hole matched with the movable ruler, so that the sliding sleeves can not rotate relative to the movable ruler, and the two sliding sleeves can be positioned on the same vertical surface on the same movable ruler. The vertical rod with the rectangular cross section extends into the vertical sliding hole matched with the vertical rod, so that the vertical rod cannot rotate relative to the sliding sleeve, a connecting line between the needle point of the steel needle fixed at the lower end of the sliding sleeve and the pen point of the line drawing pen can be ensured to be parallel to the cross ruler, and the distance between the needle point of the steel needle and the pen point of the line drawing pen can be determined through the scale on the cross ruler. The cross sections of the movable scale and the vertical bar according to the present invention may be non-circular surfaces such as triangular surfaces and polygonal surfaces.
Preferably, a connecting sleeve is fixed on one side of the lower end of the vertical rod, and the steel needle and the line drawing pen are respectively assembled in the connecting sleeve.
According to the telescopic measuring and drawing gauge, the connecting sleeve is fixedly connected to one side of the lower end of the vertical rod, the lower end of the connecting sleeve is provided with the opening, the upper end of the connecting sleeve is the blind end, and when a steel needle or a drawing pen is fixed to the lower end of the vertical rod, the steel needle or the drawing pen can be straightly connected into the connecting sleeve, so that the telescopic measuring and drawing gauge is simple to operate.
Preferably, the fourth positioning device comprises a third positioning screw and a third screw hole; the connecting sleeve is fixed on one side of the vertical rod, the lower end of the vertical rod is provided with the third screw hole, the third screw hole is communicated into the connecting sleeve, and the third positioning screw penetrates through the third screw hole and then extends into the connecting sleeve.
According to the telescopic measuring and drawing gauge, one side of the connecting sleeve is connected with one side of the lower end of the vertical rod, the third screw hole penetrates through the vertical rod and the connecting sleeve, and the third positioning screw is screwed into the third screw hole and then extends into the connecting sleeve, so that a steel needle or a line drawing pen can be fixed in the connecting sleeve.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a schematic diagram of a forward configuration of one embodiment of a scalable gauge of the present invention;
FIG. 2 is a schematic cross-sectional view of the cross-sectional structure of the retractable gauge of FIG. 1 with the cross-sectional structure of the cross-bar and the movable scale positioned by the first positioning device;
FIG. 3 is a schematic cross-sectional view of the telescopic gauge of FIG. 1, wherein the vertical rod and the sliding sleeve are positioned by a third positioning device;
fig. 4 is a left side view of an embodiment of the retractable gauge of the present invention.
In the above figures: 1, a transverse ruler; 2, moving the ruler; 3, sliding sleeve; 4 vertical rods; 5, steel needles; 6, drawing a line pen; 7U-shaped guide rods; 8, positioning pins; 801 a guide hole; 9, a nut; 10 springs; 11, positioning a groove; 12 a first set screw; 13 rack bars; 14 compression spring bolts; 15 locking inclined teeth; 16 a compression spring; 17 end caps; 18 transverse chutes; 19 a push block; 20 a limiting block; 21 connecting the sleeve; 22 a third set screw; 23 second set screw.
Detailed Description
Referring to fig. 1 and 4, a scalable metrograph, comprising: the measuring device comprises a transverse ruler 1 and two movable rulers 2 which are slidably sleeved on the transverse ruler 1, scale marks are respectively marked on the transverse ruler 1 and the movable rulers 2, the two movable rulers 2 can respectively slide towards two ends of the transverse ruler 1, and a first positioning device is arranged between the movable rulers 2 and the transverse ruler 1; a sliding sleeve 3 is slidably sleeved on each moving ruler 2, and a second positioning device is arranged between each moving ruler 2 and the sliding sleeve 3; a vertical rod 4 is vertically assembled on each sliding sleeve 3 in a sliding manner, and a third positioning device is arranged between each sliding sleeve 3 and each vertical rod 4; every the lower extreme of vertical pole 4 is provided with the steel needle 5 or the setting-out pen 6, steel needle 5 or setting-out pen 6 with be provided with fourth positioner between vertical pole 4.
In the above embodiment, the movable ruler 2 is provided with the transverse sliding hole, the movable ruler 2 is sleeved on the transverse ruler 1 through the transverse sliding hole, the two movable rulers 2 can slide on the transverse ruler 1, the measuring range of the transverse ruler 1 is expanded, the movable ruler 2 and the transverse ruler 1 are both marked with the scale marks, and when the two movable rulers 2 do not slide on the transverse ruler 1, the scale marks of the two movable rulers 2 are aligned with the scale marks on the transverse ruler 1; the two sliding sleeves 3 can slide on the movable ruler 2, a steel needle 5 is installed at the lower end of a vertical rod 4 on one sliding sleeve 3, a line drawing pen 6 is installed at the lower end of a vertical rod 4 on the other sliding sleeve 3, the horizontal distance between the steel needle 5 and the line drawing pen 6 can be roughly adjusted by adjusting the sliding distance of the two movable rulers 2 on the transverse ruler 1, and after rough adjustment, the horizontal distance between the steel needle 5 and the line drawing pen 6 can be accurately adjusted by adjusting the distance between the two sliding sleeves 3 on the movable rulers 2; the vertical rod 4 can slide up and down in the sliding sleeve 3, so that the height difference between the steel needle 5 and the line drawing pen 6 can be conveniently adjusted, and the vertical distance between the steel needle 5 and the line drawing pen 6 can be realized. This scalable drawing gauge can be used to draw the fan-shaped hole on the sprocket model, use the steel needle 5 earlier with a vertical rod 4 location in the centre of a circle position at the wheel hub position of sprocket model, then adjust another vertical rod 4 and remove chi 2 and sliding sleeve 3 on horizontal ruler 1, when guaranteeing that setting-out pen 6 contacts the wheel rim position of sprocket model, horizontal ruler 1 and removal chi 2 are in the horizontality, can refer to the scale on horizontal ruler 1 and the removal chi 2 simultaneously and pinpoint the position of setting-out pen 6, then make setting-out pen 6 use steel needle 5 to draw the inside and outside arc limit of fan-shaped hole as the centre of a circle.
The telescopic measuring and drawing gauge integrates the gauge and the drawing line, can realize the functions of measurement and drawing line under the condition of not changing tools, can transversely stretch and realize the size change in the length direction so as to measure the sizes of different diameters; the measuring and drawing gauge can also longitudinally stretch and retract, size change in the height direction is realized, sizes of different depths can be measured, and the specification and the application of the measuring and drawing gauge are greatly expanded.
In addition, the measuring gauge provided by the invention can have the following additional embodiments:
referring to fig. 2, according to an embodiment of the present invention, the first positioning device includes a U-shaped guide rod 7 and a positioning pin 8, and a guide hole 801 is formed at an upper end of the positioning pin 8; one end of the U-shaped guide rod 7 is fixedly connected to the movable ruler 2, the other end of the U-shaped guide rod 7 extends into the guide hole 801, a thread is arranged in the middle of one end, extending into the guide hole 801, of the U-shaped guide rod 7, a nut 9 is assembled on the thread, a spring 10 sleeved on the U-shaped guide rod 7 is fixedly connected to the nut 9, and the spring 10 is connected with the end of the positioning pin 8; the movable ruler 2 is provided with a through hole, the transverse ruler 1 is provided with a plurality of positioning grooves 11, and the positioning pin 8 penetrates through the through hole and is matched with the positioning grooves 11.
In the above embodiment, one end of the U-shaped guide bar 7 may be welded to the movable rule 2, and the end of the U-shaped guide bar 7 provided with the screw thread has a short length; when the length of the transverse ruler 1 can meet the horizontal distance between the steel needle 5 and the line drawing pen 6, one end of the U-shaped guide rod 7 penetrates through a through hole in the movable ruler 2 through a positioning pin 8 connected with a spring 10 and extends into a positioning groove 11 on the innermost side of the transverse ruler 1, and the positioning groove 11 is a conical groove; when the length of the transverse ruler 1 cannot meet the horizontal distance between the steel needle 5 and the line drawing pen 6, one or two movable rulers 2 need to move towards the two sides of the transverse ruler 1 respectively, at the moment, under the action of external force, the spring 10 is compressed to drive the positioning pin 8 to move upwards at one end of the U-shaped guide rod 7, so that the positioning pin 8 slips off from the positioning groove 11, at the moment, the movable ruler 2 can slide on the transverse ruler 1, the horizontal distance between the steel needle 5 and the line drawing pen 6 is lengthened, and after the required distance is reached, under the action of the restoring force of the spring 10, the positioning pin 8 enters the positioning groove 11 formed in the transverse ruler 1, so that the movable ruler 2 and the transverse ruler 1 are locked with each other; the effect of the swivel nut 9 is to adjust the tension of the spring 10.
Referring to fig. 2, a plurality of the positioning grooves 11 are equally spaced according to an embodiment of the present invention.
In above embodiment, equidistant positioning groove 11 that sets up on horizontal ruler 1, for example every 10mm sets up a positioning groove 11 on horizontal ruler 1, the distance that removes chi 2 and move on horizontal ruler 1 alright learn fast through positioning groove 11's number, make things convenient for the staff to confirm the rough horizontal distance between steel needle 5 and the setting-out pen 6 fast, finally the rethread adjusts the distance of sliding sleeve 3 on removing chi 2, the horizontal distance between accurate definite steel needle 5 and the setting-out pen 6.
Referring to fig. 1 and 4, according to an embodiment of the present invention, a transverse sliding hole is formed in a rear side of the sliding sleeve 3, the sliding sleeve 3 is slidably mounted on the movable scale 2 through the transverse sliding hole, a vertical sliding hole is further formed in a front side of the sliding sleeve 3, and the vertical rod 4 is slidably mounted in the vertical sliding hole.
In the above embodiment, the horizontal sliding holes and the vertical sliding holes on the sliding sleeve 3 are orthogonal in space, so that the horizontal ruler 1, the moving ruler 2 and the vertical rod 4 can be kept vertical without interference. The sliding sleeve 3 can slide along the moving ruler 2 through a transverse sliding hole to adjust the transverse position, and the vertical rod 4 can slide in a vertical sliding hole on the sliding sleeve 3 to adjust the vertical position of a steel needle 5 or a line drawing pen 6 fixed at the lower end of the sliding sleeve.
Referring to fig. 1 and 4, according to one embodiment of the present invention, the second positioning means comprises a first positioning screw 12 and a first screw hole; the first screw hole is arranged on the sliding sleeve 3, the first screw hole is communicated with the inside of the transverse sliding hole, and the first positioning screw 12 is matched with the first screw hole.
In the above embodiment, the end of the first positioning screw 12 passes through the first screw hole on the sliding sleeve 3 and then extends into the transverse sliding hole, so as to be pressed against the movable ruler 2, and the positions of the two sliding sleeves 3 on the movable ruler 2 can be fixed.
Referring to fig. 3, according to another embodiment of the present invention, the third positioning device is a self-locking mechanism, which includes a rack 13 and a locking helical tooth 15; set up on the lateral wall of vertical pole 4 rack 13, be provided with horizontal through-hole on the sliding sleeve 3, horizontal through-hole accesss to in the vertical sliding hole, the one end of horizontal through-hole is equipped with pressure spring bolt 14, the other end assembly of horizontal through-hole the locking skewed tooth 15, locking skewed tooth 15 with fixedly connected with compression spring 16 between the pressure spring bolt 14, locking skewed tooth 15 stretches out horizontal through-hole.
Referring to fig. 3, according to another embodiment of the present invention, an end of the transverse through hole is provided with an end cap 17, the end cap 17 is provided with a threaded hole, and the pressure spring bolt 14 is fitted at one end of the transverse through hole through the threaded hole; be provided with horizontal spout 18 on horizontal through-hole's the inner wall, the tip of pressure spring bolt 14 is provided with ejector pad 19, horizontal through-hole's the other end is equipped with stopper 20, only lock skewed tooth 15 set up in stopper 20 stretches out horizontal through-hole's one end, ejector pad 19 with be connected with between the stopper 20 compression spring 16, ejector pad 19 with stopper 20 is respectively in slide assembly in horizontal spout 18.
In the above embodiment, the third positioning device is used for fixing the position of the vertical rod 4 relative to the sliding sleeve 3; a transverse through hole is formed in the sliding sleeve 3 and leads into the vertical sliding hole; an end cover 17 is arranged at the end part of the transverse through hole, a threaded hole is formed in the end cover 17, the pressure spring bolt 14 is assembled at one end of the transverse through hole through the threaded hole, a push block 19 is arranged at the end part of the pressure spring bolt 14, the width of the two ends of the push block 19 is larger than the diameter of the threaded hole so as to prevent the pressure spring bolt 14 from falling off from the threaded hole, and the push block 19 is fixedly connected with a compression spring 16; a transverse sliding groove 18 is formed in the inner wall of the transverse through hole, a limiting block 20 and a pushing block 19 are assembled in the transverse sliding groove 18 in a sliding mode, when the pressure spring bolt 14 is rotated inwards, the pressure spring bolt 14 enables the pushing block 19 to slide in the transverse sliding groove 18 towards the direction of the vertical sliding hole, a compression spring 16 is pushed, the compression spring 16 pushes the limiting block 20 to slide in the transverse sliding groove 18 towards the direction of the vertical sliding hole, and therefore the locking oblique teeth 15 on the limiting block 20 extend into the space between adjacent racks 13 arranged on the side wall of the vertical rod 4, and the relative position of the vertical rod 4 and the sliding sleeve 3 is locked; and the compression spring bolt 14 is rotated reversely, the compression spring 16 extends to drive the locking helical teeth 15 to contract inwards, so that the relative position of the vertical rod 4 and the sliding sleeve 3 is unlocked, and the vertical rod 4 can slide up and down in the sliding sleeve 3.
Referring to fig. 4, according to another embodiment of the present invention, the third positioning means comprises a second positioning screw 23 and a second screw hole; the sliding sleeve 3 is provided with a second screw hole, the second screw hole is communicated with the inside of the vertical sliding hole, and the second positioning screw 23 is matched with the second screw hole.
In the above embodiment, the end of the second positioning screw 23 passes through the second screw hole on the sliding sleeve 3 and then extends into the vertical sliding hole, so as to be pressed against the vertical rod 4, and the position of the vertical rod 4 relative to the sliding sleeve 3 can be fixed.
Referring to fig. 4, according to another embodiment of the present invention, the cross section of the movable rule 2 is a rectangular surface, and the cross section of the transverse slide hole matches with the cross section of the movable rule 2; the cross section of the vertical rod 4 is a rectangular surface, and the cross section of the vertical sliding hole is matched with the cross section of the vertical rod 4.
In above embodiment, the removal chi 2 of rectangular cross section stretches into in the horizontal slide hole rather than assorted, can guarantee that sliding sleeve 3 can not move chi 2 relatively and rotate, can guarantee that two sliding sleeves 3 can be in on the same vertical face with removing chi 2. The vertical rod 4 with the rectangular cross section extends into the vertical sliding hole matched with the vertical rod 4, so that the vertical rod 4 can not rotate relative to the sliding sleeve 3, a connecting line between the needle point of the steel needle 5 fixed at the lower end of the sliding sleeve 3 and the pen point of the line drawing pen 6 can be ensured to be parallel to the transverse ruler 1, and the distance between the needle point of the steel needle 5 and the pen point of the line drawing pen 6 can be determined through the scales on the transverse ruler 1. The cross sections of the movable scale and the vertical bar according to the present invention may be non-circular surfaces such as triangular surfaces and polygonal surfaces.
Referring to fig. 1 and 4, according to another embodiment of the present invention, a connecting sleeve 21 is fixed to one side of the lower end of the vertical rod 4, and the stylus 5 and the line drawing pen 6 are respectively fitted into the connecting sleeve 21.
In the above embodiment, the connecting sleeve 21 is fixed on one side of the lower end of the vertical rod 4, the lower end of the connecting sleeve 21 is open, the upper end is a blind end, and when the steel needle 5 or the line drawing pen 6 is fixed on the lower end of the vertical rod 4, the steel needle 5 or the line drawing pen 6 can be directly installed in the connecting sleeve 21, so that the operation is relatively simple.
Referring to fig. 4, according to another embodiment of the present invention, the fourth positioning device includes a third positioning screw 22 and a third screw hole, the connecting sleeve 21 is fixed on one side of the vertical rod 4, the third screw hole is disposed at the lower end of the vertical rod 4, the third screw hole is inserted into the connecting sleeve 21, and the third positioning screw 22 passes through the third screw hole and then extends into the connecting sleeve 21.
In the above embodiment, one side of the connecting sleeve 21 is connected to one side of the lower end of the vertical rod 4, a third screw hole penetrates through the vertical rod 4 and the connecting sleeve 21, and a third positioning screw 22 is screwed into the third screw hole and then extends into the connecting sleeve 21, so that the steel needle 5 or the line drawing pen 6 can be fixed in the connecting sleeve 21.
In the above embodiment, the movable ruler 2 is further provided with a horizontal bubble for adjusting the level of the movable ruler 2, so as to ensure that the horizontal ruler 1 and the movable ruler 2 are parallel to the measured plane.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such changes and modifications of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such changes and modifications.
Claims (8)
1. A scalable divider calipers, comprising: the scale comprises a transverse ruler (1) and two movable rulers (2) which are sleeved on the transverse ruler (1) in a sliding mode, scale marks are marked on the transverse ruler (1) and the movable rulers (2) respectively, the two movable rulers (2) can slide towards two ends of the transverse ruler (1) respectively, and a first positioning device is arranged between the movable rulers (2) and the transverse ruler (1); each movable ruler (2) is slidably sleeved with a sliding sleeve (3), and a second positioning device is arranged between each movable ruler (2) and each sliding sleeve (3); a vertical rod (4) is vertically assembled on each sliding sleeve (3) in a sliding manner, and a third positioning device is arranged between each sliding sleeve (3) and each vertical rod (4); a steel needle (5) or a line drawing pen (6) is arranged at the lower end of each vertical rod (4), and a fourth positioning device is arranged between each steel needle (5) or line drawing pen (6) and each vertical rod (4);
the first positioning device comprises a U-shaped guide rod (7) and a positioning pin (8), and the upper end of the positioning pin (8) is provided with a guide hole (801); one end of the U-shaped guide rod (7) is fixedly connected to the movable ruler (2), the other end of the U-shaped guide rod (7) extends into the guide hole (801), a thread is arranged in the middle of one end, extending into the guide hole (801), of the U-shaped guide rod (7), a nut (9) is assembled on the thread, a spring (10) sleeved on the U-shaped guide rod (7) is fixedly connected to the nut (9), and the spring (10) is connected with the end of the positioning pin (8); a through hole is formed in the movable ruler (2), a plurality of positioning grooves (11) are formed in the transverse ruler (1), and the positioning pin (8) penetrates through the through hole to be matched with the positioning grooves (11); the positioning groove is a conical groove;
a transverse sliding hole is formed in the rear side of the sliding sleeve (3), the sliding sleeve (3) is slidably sleeved on the movable ruler (2) through the transverse sliding hole, a vertical sliding hole is further formed in the front side of the sliding sleeve (3), and the vertical rod (4) is slidably assembled in the vertical sliding hole; the transverse sliding hole and the vertical sliding hole on the sliding sleeve (3) are orthogonal in space;
the telescopic measuring and drawing gauge is used for accurately drawing lines of the fan-shaped holes in the middle of the chain wheel model.
2. A telescopic metrological gauge as claimed in claim 1, characterized in that a plurality of said positioning grooves (11) are equally spaced.
3. The telescopic metrological gauge according to claim 1, characterized in that said second positioning means comprise a first positioning screw (12) and a first threaded hole, said first threaded hole being provided on said sliding bush (3), said first threaded hole leading into said transverse sliding hole, said first positioning screw (12) matching said first threaded hole.
4. The retractable metrological gauge as claimed in claim 1, characterized in that said third positioning means are self-locking mechanisms comprising a rack (13) and locking helical teeth (15); set up on the lateral wall of vertical pole (4) rack (13), be provided with horizontal through-hole on sliding sleeve (3), horizontal through-hole accesss to in the vertical sliding hole, the one end of horizontal through-hole is equipped with pressure spring bolt (14), the other end assembly of horizontal through-hole only lock skewed tooth (15), only lock skewed tooth (15) with fixedly connected with compression spring (16) between pressure spring bolt (14), only lock skewed tooth (15) stretch out horizontal through-hole.
5. The retractable ruler of claim 4, wherein an end cap (17) is arranged at the end of the transverse through hole, a threaded hole is arranged on the end cap (17), and the pressure spring bolt (14) is assembled at one end of the transverse through hole through the threaded hole; be provided with horizontal spout (18) on horizontal through-hole's the inner wall, the tip of pressure spring bolt (14) is provided with ejector pad (19), horizontal through-hole's the other end is equipped with stopper (20), only lock skewed tooth (15) set up in stopper (20) stretch out horizontal through-hole's one end, ejector pad (19) with be connected with between stopper (20) compression spring (16), ejector pad (19) with stopper (20) are respectively in slide assembly in horizontal spout (18).
6. The retractable ruler of any one of claims 3-5, wherein the cross section of the movable ruler (2) is a rectangular surface, and the cross section of the transverse sliding hole is matched with the cross section of the movable ruler (2); the cross section of the vertical rod (4) is a rectangular surface, and the cross section of the vertical sliding hole is matched with the cross section of the vertical rod (4).
7. The retractable ruler of claim 1, wherein a connecting sleeve (21) is fixed to one side of the lower end of the vertical rod (4), and the steel needle (5) and the line drawing pen (6) are respectively assembled in the connecting sleeve (21).
8. The telescopic metrological gauge according to claim 7, characterized in that said fourth positioning means comprise a third positioning screw (22) and a third threaded hole; the connecting sleeve is fixed on one side of the vertical rod (4), the lower end of the vertical rod (4) is provided with the third screw hole, the third screw hole is communicated into the connecting sleeve (21), and the third positioning screw (22) penetrates through the third screw hole and then extends into the connecting sleeve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093763.3A CN108297580B (en) | 2018-01-31 | 2018-01-31 | Telescopic measuring and drawing gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810093763.3A CN108297580B (en) | 2018-01-31 | 2018-01-31 | Telescopic measuring and drawing gauge |
Publications (2)
| Publication Number | Publication Date |
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| CN108297580A CN108297580A (en) | 2018-07-20 |
| CN108297580B true CN108297580B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810093763.3A Expired - Fee Related CN108297580B (en) | 2018-01-31 | 2018-01-31 | Telescopic measuring and drawing gauge |
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| Country | Link |
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| CN (1) | CN108297580B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109278012A (en) * | 2018-10-08 | 2019-01-29 | 广西电网有限责任公司贵港供电局 | A kind of drilling Rapid locating tool |
| CN110095040B (en) * | 2019-06-05 | 2024-06-18 | 中建八局第四建设有限公司 | Multi-functional water and electricity installation positioner |
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| CN108297580A (en) | 2018-07-20 |
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