CN214215282U

CN214215282U - Measuring tool for quickly marking central line of cylindrical object

Info

Publication number: CN214215282U
Application number: CN202021978234.0U
Authority: CN
Inventors: 王圣仟
Original assignee: Huadian Electric Power Research Institute Co Ltd
Current assignee: Huadian Electric Power Research Institute Co Ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-09-17
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a measuring tool for quickly marking the central line of a cylindrical object, which relates to the technical field of measuring equipment and comprises a top shell, wherein the top of the top shell is provided with a mandril, two opposite side rods are arranged below the top shell, the top ends of the two side rods are both provided with gears, the gears are internally provided with through holes, rotating shafts matched with the through holes penetrate through the through holes, one side rod of the measuring tool for quickly marking the central line of the cylindrical object can drive the other side rod to rotate by the same angle, a marking pen is always positioned at the middle position of the two side rods, the quick drawing of the central line of a bar structure is facilitated, the problem of low central line precision of the bar structure drawn by a ruler is solved, and a telescopic rod and a spring avoid the marking pen from being in hard contact with the bar structure, can make the marking pen fully contradict the bar structure, guarantee that the drawing line is clear and reduce the wearing and tearing of marking pen.

Description

Measuring tool for quickly marking central line of cylindrical object

Technical Field

The utility model relates to a measuring equipment field, concretely relates to measuring tool of quick mark cylindricality object central line.

Background

In the engineering field construction, for a strip-shaped structure, the central line of the strip-shaped structure needs to be quickly found and marked, for regular cylindrical, cubic and rectangular structures, the central line is found in the field detection in a steel plate ruler tape measurement calculation mode, the position of the central line is marked after data is divided by two, the mode is complicated, equipment is often in a non-standard structure, artificial estimation errors are easily generated in the structure edge measurement, and the precision is low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a measuring tool of quick mark cylindricality object central line.

The utility model provides a technical scheme that above-mentioned problem adopted is:

the utility model provides a measuring tool of quick mark cylindricality object central line, includes the epitheca, the ejector pin is installed at the top of epitheca, the below of epitheca is provided with two relative side levers, two the gear is all installed on the top of side lever, and the inside of gear has seted up the through-hole, the inside of through-hole runs through the pivot rather than the looks adaptation, and the pivot is installed in the inner wall of epitheca, the bottom of side lever is provided with splint, and the coincidence department of splint and side lever runs through there is screw rod one, the tip and the side lever threaded connection of screw rod one, the bottom center department of epitheca is fixed with the telescopic link, and the bottom of telescopic link is connected with the sleeve, the outer wall cover of telescopic link is equipped with the spring, the marker pen has been inserted to telescopic bottom, telescopic lateral wall runs through there is rather than threaded connection's bolt, and the tip and the marker pen lateral wall of bolt are connected.

As the further improvement of above-mentioned technical scheme, the cross-section of splint is the arc form, and the inner wall movable mounting of splint has the ball, the ball of every splint inner wall has threely, three ball is located the middle part and upper and lower both ends of splint respectively, the splint of arcuation do benefit to the side lever to fix on the bar structure of the non-rectangular form in cross-section such as tubulose, the application scope of the device has been improved, it is fixed firm simultaneously, it breaks away from with bar structure to remove the in-process difficultly, the efficiency of drawing central line has been improved, it can rolling ball to set up has reduced the device and bar structure's frictional force, make the more smooth and easy of drawing of central line.

As a further improvement of the technical scheme, the side rods are internally provided with through grooves which are in strip shapes, the through grooves effectively reduce the material consumption of the device, the production cost is reduced, the weight of the device is reduced, and the operation is convenient.

As above-mentioned technical scheme's further improvement, two the bandage is all installed to one side that the side lever was kept away from each other, and the flexible deformation of bandage, and two bandages are convenient for fix user's forefinger and thumb, do benefit to one-hand operation.

As a further improvement of the technical scheme, an inner groove is formed in the top of the inner wall of the sleeve, the inner grooves are in a cylindrical shape with three gradually reduced inner diameters and overlapped inner grooves, and marking pens with different thicknesses can be conveniently fixed.

As a further improvement of the technical scheme, the bottom of the top shell and the side part of the telescopic rod are connected with a screw cylinder through a bearing, the plane formed by the telescopic rod and the screw cylinder is vertical to the plane formed by the two side rods, a screw rod II in threaded connection with the screw cylinder is inserted into the bottom end of the screw cylinder, a horizontal arc rod is welded at the bottom end of the screw rod II, the screw rod II is positioned in the center of the top of the arc rod, C-shaped abutting blocks matched with the side rods are welded at the two ends of the arc rod, the screw rod II is controlled to stretch out and draw back at the bottom of the screw rod II by rotating the screw cylinder, the arc rod can be controlled to lift up and down between the two side rods, the position of the bottom side of the side rods is changed in the process of the up-and-down movement of the abutting blocks, so that the size of an included angle between the two side rods can be controlled, the two side rods are synchronously opened and closed in another way, the gear can be used when the gear is seriously worn, and the durability of the device can be improved, the scribing operation may be performed continuously.

Compared with the prior art, the utility model, have following advantage and effect:

1. the utility model discloses a can drive the rotatory same angle of another side lever when using through one of them side lever, guarantee that the marker pen is in the middle part position of two side levers all the time, do benefit to the quick drawing of bar-shaped structure central line, also improved the drawing precision, telescopic link and spring when avoiding marker pen and the rigid contact of bar-shaped structure, can make the marker pen fully contradict bar-shaped structure, guarantee that the drawing is clear and reduce the wearing and tearing of marker pen.

2. The utility model discloses a do benefit to the side lever through splint and fix on the bar-shaped structure of tubulose uniform cross-section non-rectangle form when using, improved the device's application scope, it is fixed firm simultaneously, remove the in-process difficult and bar-shaped structure break away from, improved the efficiency of drawing central line, set up can rolling ball and reduced the device and bar-shaped structure's frictional force, make more smooth and easy of the drawing of central line.

Drawings

Fig. 1 is an external view of an embodiment of the present invention.

Fig. 2 is a schematic view of the internal structure of the top case according to the embodiment of the present invention.

Fig. 3 is a schematic structural view of an inner groove according to an embodiment of the present invention.

Wherein: the device comprises a top shell 1, a top rod 2, a gear 3, a through hole 4, a rotating shaft 5, a side rod 6, a clamping plate 7, a first screw rod 8, a telescopic rod 9, a sleeve 10, a spring 11, a marking pen 12, a screw cylinder 13, a second screw rod 14, an arc rod 15, a pressing block 16, an inner groove 17, balls 18, a through groove 19 and a binding band 20.

Detailed Description

The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.

Example 1

Referring to fig. 1-3, the embodiment provides a measuring tool for rapidly marking the centerline of a cylindrical object, which includes a top case 1, a top rod 2 is installed at the top of the top case 1, two opposite side rods 6 are installed below the top case 1, through grooves 19 are formed in the side rods 6, the through grooves 19 are in a strip shape, the through grooves 19 effectively reduce the material consumption of the device, reduce the production cost, reduce the weight of the device, and facilitate the operation, binding bands 20 are installed on the sides of the two side rods 6 away from each other, the binding bands 20 are flexibly deformed, the two binding bands 20 facilitate the fixing of the index finger and the thumb of a user, thereby facilitating the one-hand operation, gears 3 are installed at the top ends of the two side rods 6, through holes 4 are formed in the gears 3, and rotating shafts 5 matched with the through holes 4 penetrate through the through holes, the rotating shaft 5 is installed on the inner wall of the top shell 1, the bottom end of the side lever 6 is provided with a clamping plate 7, a screw rod 8 penetrates through the superposed position of the clamping plate 7 and the side lever 6, the end part of the screw rod 8 is in threaded connection with the side lever 6, the bottom center of the top shell 1 is fixed with a telescopic rod 9, the bottom end of the telescopic rod 9 is connected with a sleeve 10, the outer wall of the telescopic rod 9 is sleeved with a spring 11, the bottom of the sleeve 10 is inserted with a marker 12, the top of the inner wall of the sleeve 10 is provided with an inner groove 17, the inner groove 17 is in a cylindrical shape with three gradually reduced inner diameters and overlapped, so that the marker 12 with different thicknesses can be conveniently fixed, the side wall of the sleeve 10 is penetrated with a bolt in threaded connection with the sleeve 10, the end part of the bolt is connected with the side wall of the marker 12, gears 3 at the end parts of the two side levers 6 are mutually engaged, and when one side lever 6 is pulled, the other side lever 6 can be driven to rotate by the same angle, the marking pen 12 is ensured to be always positioned in the middle position of the two side rods 6, the quick drawing of the central line of the bar-shaped structure is facilitated, the telescopic rod 9 and the spring 11 can enable the marking pen 12 to fully abut against the bar-shaped structure while the marking pen 12 is prevented from being in hard contact with the bar-shaped structure, the drawing line is ensured to be clear, the abrasion of the marking pen is reduced, the cross section of the clamping plate 7 is arc-shaped, the rolling balls 18 are movably arranged on the inner wall of the clamping plate 7, the number of the rolling balls 18 on the inner wall of each clamping plate 7 is three, the three rolling balls 18 are respectively positioned in the middle part and at the upper end and the lower end of the clamping plate 7, the arc-shaped clamping plate 7 facilitates the side rods 6 to be fixed on the bar-shaped structure with the tubular uniform cross section and the non-rectangular shape, the application range of the device is improved, the fixing is firm, the device is not easy to separate from the bar-shaped structure in the moving process, the efficiency of the central line of the drawing is improved, the rolling balls 18 reduces the friction force between the device and the bar-shaped structure, the drawing of the central line is smoother.

Example 2

Referring to fig. 1, a screw barrel 13 is connected to the bottom of the top case 1 and the side of the telescopic rod 9 through a bearing, the plane formed by the telescopic rod 9 and the screw barrel 13 is perpendicular to the plane formed by the two side rods 6, a screw rod 14 in threaded connection with the screw barrel 13 is inserted into the bottom of the screw barrel 13, a horizontal arc rod 15 is welded to the bottom of the screw rod 14, the screw rod 14 is located at the center of the top of the arc rod 15, C-shaped abutting blocks 16 matched with the side rods 6 are welded to both ends of the arc rod 15, the screw rod 14 is controlled to extend and retract at the bottom by rotating the screw barrel 13, the arc rod 15 can be controlled to lift between the two side rods 6, the positions of the abutting blocks 16 and the side rods 6 are changed in the up-and-down movement process, so that the included angle between the two side rods 6 can be controlled, the two side rods 6 are synchronously opened and closed in another way, and can be used when the gear 3 is seriously worn, the durability of the device is improved, and the scribing operation can be continuously performed.

The working principle is as follows: this device is when using, the equal intermeshing of gear 3 of 6 tip of two side levers, can drive another side lever 6 rotatory the same angle when breaking one of them side lever 6 off with the fingers and thumb, guarantee that marker 12 is in two side lever 6's middle part position all the time, do benefit to the quick drawing of bar structure central line, telescopic link 9 and spring 11 are when avoiding marker 12 and the rigid contact of bar structure, can make marker 12 fully contradict the bar structure, it is fixed through screw rod 8 to rotate two splint 7, splint 7 do benefit to side lever 6 and fix on the bar structure of tubulose uniform section non-rectangular form, the application scope of the device has been improved, it is fixed firm simultaneously, it breaks away from with the bar structure to be difficult for removing the in-process.

The above description in this specification is merely illustrative of the present invention. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a measuring tool of quick mark cylindricality object central line, includes top shell (1), ejector pin (2) are installed at the top of top shell (1), the below of top shell (1) is provided with two relative side lever (6), its characterized in that: gears (3) are respectively arranged at the top ends of the two side rods (6), a through hole (4) is formed in each gear (3), a rotating shaft (5) matched with the through hole (4) penetrates through the through hole (4), the rotating shaft (5) is arranged on the inner wall of the top shell (1), the bottom end of the side lever (6) is provided with a clamping plate (7), a screw rod I (8) penetrates through the superposed position of the clamping plate (7) and the side lever (6), the end part of the first screw rod (8) is in threaded connection with the side rod (6), a telescopic rod (9) is fixed at the center of the bottom of the top shell (1), the bottom end of the telescopic rod (9) is connected with a sleeve (10), the outer wall of the telescopic rod (9) is sleeved with a spring (11), the bottom of the sleeve (10) is inserted with a marking pen (12), the side wall of the sleeve (10) is penetrated with a bolt in threaded connection with the sleeve, and the end part of the bolt is connected with the side wall of the marking pen (12).

2. The metrology tool for rapidly marking the centerline of a cylindrical object as claimed in claim 1, wherein: the cross section of the clamping plate (7) is arc-shaped, and a ball (18) is movably arranged on the inner wall of the clamping plate (7).

3. The metrology tool for rapidly marking the centerline of a cylindrical object as claimed in claim 1, wherein: a through groove (19) is formed in the side rod (6), and the through groove (19) is in a strip shape.

4. The metrology tool for rapidly marking the centerline of a cylindrical object as claimed in claim 1, wherein: and the binding bands (20) are arranged on one sides of the side rods (6) which are far away from each other, and the binding bands (20) are deformed in a telescopic manner.

5. The metrology tool for rapidly marking the centerline of a cylindrical object as claimed in claim 1, wherein: an inner groove (17) is formed in the top of the inner wall of the sleeve (10).

6. The metrology tool for rapidly marking the centerline of a cylindrical object as claimed in claim 1, wherein: the bottom of top shell (1) and the lateral part of telescopic link (9) are connected with spiral shell section of thick bamboo (13) through the bearing, the bottom of spiral shell section of thick bamboo (13) insert have rather than threaded connection's screw rod two (14), and the bottom welding of screw rod two (14) has horizontal arc pole (15), the both ends of arc pole (15) all weld have with side lever (6) looks adaptation "C" shape support piece (16).