CN218155850U

CN218155850U - Ruler for measuring irregular bottom surface

Info

Publication number: CN218155850U
Application number: CN202222278145.0U
Authority: CN
Inventors: 王仕超; 王东强
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2022-12-27
Anticipated expiration: 2032-08-29

Abstract

The utility model relates to a dipperstick technical field specifically is a ruler is used in measurement of irregular bottom surface, including main scale and the guiding ruler that is provided with the scale mark respectively, the spout has been seted up to the surface of main scale, the guide way, two have all been seted up on the both sides surface of main scale the guide way is corresponding the setting, the inside sliding connection of spout has the slider, a side fixedly connected with guide block of slider. The utility model discloses a direction to main scale inside is pressed the movable block and is removed, can drive the guiding ruler and remove, through rotating the movable block, can make a side and the laminating of measuring plane of guiding ruler, after loosening the movable block, can fix the position of guiding ruler, be difficult to take place to rock, and at this moment, still can carry out the pull to the guiding ruler, adjust measurement length in a flexible way, thereby make the staff be convenient for measure irregular plane, the measuring accuracy has been improved, the holistic application scope of dipperstick has been enlarged.

Description

Ruler for measuring irregular bottom surface

Technical Field

The utility model relates to a dipperstick technical field especially relates to an irregular bottom surface is with measuring chi.

Background

The ruler is also called measuring ruler and dividing ruler, which is a tool for drawing line segments and measuring length, the ruler is usually provided with scales for measuring and calculating length, and is generally divided into a measuring tape, a vernier caliper, a square ruler and a straight ruler, wherein along with the increasing and increasing complexity of the scale of modern construction project, the construction cost gradually evolves into the core problem in the construction, and the construction cost budgeting personnel often need to use the measuring ruler to carry out the measurement on the spot and the compilation of data in order to ensure the accuracy of the construction cost budget in work.

Chinese patent (publication No. CN 208968429U) discloses a measuring scale for engineering cost, it includes the main scale that is equipped with the scale mark, be equipped with the sliding tray on the main scale, the sliding tray internal slip is equipped with the sliding block, the one end that the sliding block kept away from the sliding tray is equipped with the guide bar, the guide bar is perpendicular with the distribution direction of scale mark, when measuring irregular object, align the initial point of scale mark with the one end that the object needs the measuring sideline earlier, then rotate the guide bar to vertical state and make it align until the other end of guide bar and object need the measuring sideline along the horizontal direction removal, the distance between the initial point of scale mark and the guide bar is the length that needs the measuring sideline promptly this moment, thereby make people be difficult for producing the error when the reading, the measuring accuracy has been improved.

It uses through the cooperation between main scale and the guide bar, can be simple and convenient measure the length of irregular object sideline, but only the main scale is provided with the scale mark in the above-mentioned measuring ruler, and need just can measure the sideline of irregular plane or object under mutually perpendicular's prerequisite when using between guide bar and the main scale, so can only measure the length of a direction plane or object sideline once, when contained angle between two planes of object bottom is acute angle or obtuse angle, just be not convenient for measure two planes simultaneously, the application scope of dipperstick has been reduced greatly, for this reason, we have provided a ruler for the measurement of irregular bottom surface.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suitability is strong, is convenient for measure simultaneously two planar irregular bottom surfaces with measuring chi.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

ruler for measurement is used to irregular bottom surface, including main scale and the guiding ruler that is provided with the scale mark respectively, the spout has been seted up to the surface of main scale, the guide way has all been seted up to the both sides surface of main scale, two the guide way is the corresponding setting, the inside sliding connection of spout has the slider, a side fixedly connected with guide block of slider, the surface cover of guide block is equipped with the guiding ruler, the guiding ruler is located the upside of slider, the both ends of guiding ruler run through in two the guide way, a side fixedly connected with two telescopic link A of slider, two telescopic link A keeps away from the one end fixedly connected with of slider and supports the board, the side that the slider was kept away from to the board with the inner wall in close contact with of spout, two the surface of telescopic link A all is equipped with spring A, two spring A is located between the slider and the support board, a side fixedly connected with connecting rod that the slider was kept away from to the board is kept away from to the connecting rod, the one end that the support board was kept away from to the connecting rod runs through in the top of spout, the connecting rod is kept away from the one end fixed mounting of support board has the movable block.

It can be seen from the above solution that, by arranging the fixed connection between the movable block and the connecting rod, and the fixed connection between the connecting rod and the abutting plate, when the movable block is pressed towards the inside of the main ruler, the abutting plate can be driven to move towards the direction close to the slider, and then the abutting plate can be separated from the inner wall of the chute, by arranging the fixed connection between the telescopic rod a and the slider, the abutting plate, and the sleeving relation between the spring a and the telescopic rod a, when the abutting plate moves towards the slider, the telescopic rod a and the spring a can be extruded, by arranging the sliding connection between the chute and the slider, after the movable block is pressed, the slider can horizontally slide inside the chute by pulling the movable block to move horizontally along the top of the chute, by arranging the fixed connection between the slider and the guide block, and the sleeving relation between the guide block and the guiding ruler, can drive the guiding rule to carry out horizontal movement, through setting up the inside of slider at the spout, and the slider is round platform form, after pressing the movable block, can rotate the movable block and drive the slider and rotate, then make the guide block rotate and drive the guiding rule and rotate, through setting up the through relation between guide way and the guiding rule, can make the guiding rule rotate and adjust between two guide ways, make the side surface of main scale laminate with the sideline of a measuring plane, and a side of guiding rule can laminate with the sideline of another measuring plane, then through letting out the movable block, combine the elasticity that two spring A deformations of a pair of springs produced, can make the offset plate move to the direction of keeping away from the slider, until one side of offset plate closely contradicts with the inner wall of spout, can fix the position of slider, then can fix the position of guiding rule, be difficult to take place to become flexible, and simultaneously, can carry out the pulling around to the guiding ruler to adjust the length that the guiding ruler required was used when measuring in a flexible way, thereby make people can measure two adjacent planes, when contained angle between two adjacent planes is acute angle, obtuse angle or right angle, all can measure two adjacent planes in a flexible way, improved the measuring accuracy, enlarged the application scope of dipperstick.

Furthermore, a level gauge is arranged on the outer surface of the main scale, two accommodating grooves are formed in one side surface, away from the movable block, of the main scale, supporting legs are hinged to the inner walls of the two accommodating grooves, the two supporting legs are symmetrically arranged, an inserting block is inserted into the opposite surface of one supporting leg and the other supporting leg, a threaded groove is formed in the outer surface of the one supporting leg, bolts are connected to the inner wall of the threaded groove in a meshed mode, one end, close to the supporting legs, of each bolt is in close contact with the outer surface of the inserting block, two fixing grooves are formed in one side surface of the main scale, the two fixing grooves are communicated with the accommodating grooves, the two fixing grooves are symmetrically arranged, telescopic rods B are fixedly connected to the opposite surfaces of the two fixing grooves, baffles are fixedly mounted to the opposite surfaces of the two telescopic rods B, the two baffles are located on the lower sides of the supporting legs, springs B are sleeved on the outer surfaces of the two telescopic rods, pull rods are fixedly connected to the side surfaces of the two baffles, and one ends, away from the baffles, penetrate through one side surface of the main scale.

It is worth to be noted that the level gauge is a level gauge commonly used in the prior art, the level gauge is a measuring tool using a level gauge as a measuring and reading element, the level gauge is a sealed glass tube, the longitudinal section of the inner surface of the level gauge is a circular arc surface with a certain curvature radius, liquid with a small viscosity coefficient, such as alcohol, ether and a mixture thereof, is filled in the glass tube of the level gauge, the part without the liquid is generally called a level bubble, a certain relation exists between the curvature radius of the longitudinal section of the inner surface of the glass tube and a division value, and the inclination of the measured plane can be measured according to the relation. When the placing surface of the measuring scale is provided with uneven pits, the two support legs can be rotated by arranging the hinged connection between the two support legs and the accommodating groove, so that the two support legs fall down to be in contact with the placing surface, the length of one support leg can be adjusted by pulling the inserting block by arranging the inserting relation between one support leg and the inserting block, the bolt can be rotated by arranging the threaded groove to be meshed with the bolt, one end of the bolt can be moved, when one end of the bolt is in close contact with the outer surface of the inserting block, the length of the inserting block can be fixed, when one end of the bolt is separated from the outer surface of the inserting block, the inserting block can be pulled, whether the measuring scale at the moment is in a horizontal state can be easily observed by the arranged gradienter, and then the length of the inserting block extending out of one support leg can be flexibly adjusted, through the fixed connection between the telescopic rod B and the baffle and the sleeve relation between the telescopic rod B and the spring B, the baffle can move horizontally, through the fixed connection between the pull rod and the baffle, when the pull rod is not pulled, the baffle can support the support leg and the inserting block, so that the support leg and the inserting block are clamped in the accommodating groove and can not fall down for accommodating, when the two pull rods are pulled to move towards opposite directions, the two baffles can move to the inside of the two fixed grooves, and further the support leg and the inserting block can fall down for use, when the two pull rods are released, the two springs B can release elasticity by combining the extrusion of the two baffles when moving, so that the two baffles can return to the original positions, thereby the measuring scale can be arranged on an uneven placing surface, and through the length adjustment of the two support legs and the inserting block, can make the dipperstick adjust to horizontality, can measure the measuring face then, improve the holistic suitability of dipperstick, simultaneously, two landing legs can be accomodate in the inside of accomodating the groove when not using, save space.

Further, the slider is the round platform form, the slider can the inside of spout rotates, the guide block is the square frame form setting, the surface of guide block with the inner wall of guiding ruler suits. Be the round platform form through setting up the slider, and the diameter ratio of slider is little than the width of spout, so the slider can rotate in the inside of spout, then can make the guide block rotate, the surface through the guide block suits with the inner wall of guiding rule, can drive the guiding rule and rotate, then make a side of guiding rule can laminate with the inclined plane of different angles, thereby make to rotate the movable block and can drive the guiding rule and rotate, make a side of guiding rule can laminate with the inclined plane of different angles, be convenient for measure the inclined plane of different angles.

Furthermore, the size of the guiding ruler is smaller than the size of the two guiding grooves, and the size of the sliding groove in the main ruler is larger than the size of the guiding ruler. The size through setting up the guiding ruler is less than the size of two guide ways, and the spout is located the inside size of main scale and is greater than the size of guiding ruler, move according to moving the movable block, make the slider move to the inside one side of spout, stimulate the guiding ruler again, until when rotating the movable block, can make the guiding ruler pass through two guide ways, rotate and accomodate to the inside of spout, after loosening the movable block, can be fixed in the inside of main scale with the guiding ruler, be difficult to make the guiding ruler take place to rock, thereby make the guiding ruler can accomodate in the inside of spout when not using, and the space is saved, be convenient for to the carrying of dipperstick.

Furthermore, the two sides of the guiding ruler, which are close to one side face of the movable block, are provided with scale marks, the outer surface of the main ruler is provided with the scale marks, and the original point of the scale marks on the outer surface of the main ruler is located at the center of the scale marks of the main ruler. The scale marks are arranged on the two sides, close to one side face of the movable block, of the guiding rule, the original points of the scale marks on the outer surface of the main scale are located at the center of the scale marks of the main scale, the measuring plane can be flexibly measured, the specific direction and the position of measurement are not limited, the measurement can be carried out in the directions of the two sides of the guiding rule, and therefore the guiding rule is convenient for workers to measure the measuring plane, and time is saved.

Furthermore, a rubber pad is bonded on the outer surface of the movable block, and anti-skid grains are formed in the outer surface of the rubber pad. Through the rubber pad that sets up the surface binding of movable block to and the anti-skidding line that the rubber pad surface was seted up, can increase the frictional force between movable block surface and the hand, thereby be convenient for remove and rotate the movable block, prevent that the movable block from taking place to skid when rotating.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic sectional view of the three-dimensional structure of the present invention;

fig. 3 is an enlarged schematic view of the structure a in fig. 2 according to the present invention;

fig. 4 is an enlarged schematic view of the structure B in fig. 2 according to the present invention.

In the figure: 1. a main scale; 2. a chute; 3. a slider; 4. a guide groove; 5. a guide block; 6. a guiding rule; 7. a telescopic rod A; 8. a level gauge; 9. a spring A; 10. a resisting plate; 11. a connecting rod; 12. a movable block; 13. a receiving groove; 14. a support leg; 15. inserting the block; 16. a thread groove;

17. a bolt; 18. a pull rod; 19. a fixing groove; 20. a telescopic rod B; 21. a spring B; 22. and a baffle plate.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, the present invention provides an embodiment:

the ruler for measuring the irregular bottom surface comprises a main ruler 1 and a guiding ruler 6 which are respectively provided with scale marks, wherein the outer surface of the main ruler 1 is provided with a sliding groove 2, the two side surfaces of the main ruler 1 are respectively provided with a guide groove 4, and the two guide grooves 4 are correspondingly arranged; a sliding block 3 is connected inside the sliding groove 2 in a sliding mode, a guide block 5 is fixedly connected to one side face of the sliding block 3, a guiding rule 6 is sleeved on the outer surface of the guide block 5, the guiding rule 6 is located on the upper side of the sliding block 3, and two ends of the guiding rule 6 penetrate through the two guide grooves 4; one side face of the sliding block 3 is fixedly connected with two telescopic rods A7, one end of each telescopic rod A7, far away from the sliding block 3, is fixedly connected with a resisting plate 10, one side face, far away from the sliding block 3, of each resisting plate 10 is in close contact with the inner wall of the sliding groove 2, springs A9 are sleeved on the outer surfaces of the two telescopic rods A7, and the two springs A9 are located between the sliding block 3 and the resisting plate 10; a side face, away from the sliding block 3, of the abutting plate 10 is fixedly connected with a connecting rod 11, one end, away from the abutting plate 10, of the connecting rod 11 penetrates through the top of the sliding groove 2, and a movable block 12 is fixedly mounted at one end, away from the abutting plate 10, of the connecting rod 11.

When an irregular plane needs to be measured, firstly, the original point of the scale mark of the main scale 1 is aligned with one end of a sideline of a measuring plane, then the movable block 12 is pressed towards the inner part of the main scale 1, the connecting rod 11 and the abutting plate 10 can be driven to move towards the direction close to the sliding block 3, then the abutting plate 10 can be separated from the inner wall of the sliding groove 2 to be abutted, meanwhile, the two telescopic rods A7 and the spring A9 are extruded by the abutting plate 10 to be compressed, then the movable block 12 is horizontally moved, the sliding block 3 can be driven to horizontally move, then the guiding block 5 can drive the guiding rule 6 to horizontally move, when the guiding rule 6 is parallel to the side surfaces of the inner walls of the two guiding grooves 4, the guiding rule 6 is in a vertical state with the main scale 1, at the moment, the sideline of one side surface of the guiding rule 6 is aligned with the other end of the sideline of the plane to be measured, at the moment, the distance between the side line of the guiding rule 6 aligned with the plane and the original point of the scale mark of the main rule 1 is the distance between the side line of the plane to be measured, after the calibration is finished, the movable block 12 is loosened, the abutting plate 10 can be in close contact with the inner wall of the chute 2 by combining the elasticity of the two springs A9, then the position of the guiding rule 6 is fixed, when two adjacent planes are required to be measured, the original point of the scale mark of the main rule 1 is aligned with the side line of one measuring plane, then the movable block 12 is pressed towards the inner direction of the main rule 1 and moved, the guiding rule 6 can be moved along the inner wall of the guide groove 4 until the side line of one side of the guiding rule 6 is in contact with the side line of the other measuring plane, then the movable block 12 is rotated while being pressed, the guiding rule 6 can be driven to rotate, then one side of the guiding rule 6 can be attached to the other measuring plane, and simultaneously, the guiding rule 6 is flexibly pulled back and forth, make the one end of guiding rule 6 can keep level with another planar one end of measurement, combine the scale mark that main scale 1 and guiding rule 6 surface set up, can be the acute angle to two adjacent contained angles, right angle or obtuse plane carry out length measurement, after the calibration, loosen movable block 12, can fix the position of guiding rule 6, when two planar contained angle degrees are measured to needs, after the calibration, loosen movable block 12 and can fix the position of guiding rule 6, then can wholly take off the dipperstick, place on the drawing paper, draw out two planar contained angles along main scale 1 and guiding rule 6's measurement sideline, cooperate the protractor again to carry out angular surveying, thereby be convenient for the staff measures irregular plane, the holistic suitability of dipperstick has been increased.

Preferably, the level gauge 8 is arranged on the outer surface of the main scale 1, two accommodating grooves 13 are formed in one side surface of the main scale 1 away from the movable block 12, the inner walls of the two accommodating grooves 13 are hinged with supporting legs 14, and the two supporting legs 14 are symmetrically arranged; an inserting block 15 is inserted into the opposite surfaces of one supporting leg 14 and the other supporting leg 14, a threaded groove 16 is formed in the outer surface of one supporting leg 14, a bolt 17 is meshed and connected to the inner wall of the threaded groove 16, and one end, close to the supporting leg 14, of the bolt 17 is tightly contacted with the outer surface of the inserting block 15; two fixing grooves 19 are formed in the surface of one side of the main scale 1, the two fixing grooves 19 are communicated with the accommodating groove 13, the two fixing grooves 19 are symmetrically arranged, telescopic rods B20 are fixedly connected to opposite surfaces of the two fixing grooves 19, baffles 22 are fixedly mounted on opposite surfaces of the two telescopic rods B20, the two baffles 22 are located on the lower sides of the supporting legs 14, and springs B21 are sleeved on the outer surfaces of the two telescopic rods B20; the side surfaces of the two baffles 22 are fixedly connected with pull rods 18, and one ends of the two pull rods 18 far away from the baffles 22 penetrate through one side surface of the main scale 1.

When the dipperstick placing surface has unsmooth pothole, directly place its surface with the dipperstick and easily influence final measuring result, at this moment, pull two pull rods 18 and move to relative direction, can make two baffles 22 move to the inside of two fixed slots 19, extrude telescopic link B20 and spring B21 when two baffles 22 move, and then can make two landing legs 14 fall, relieve two pull rods 18, combine the elasticity of two spring B21 releases, can make two baffles 22 get back to original position, then contact the bottom of another landing leg 14 with the placing surface, again will insert the inside of a landing leg 14 of piece 15 and pull out, observe the change of spirit level 8 inside, when spirit level 8 shows that main chi 1 is the horizontality, forward rotation bolt 17, make the one end of bolt 17 and the surface of inserting piece 15 closely contact, can fix the length that inserting piece 15 stretches out a landing leg 14, and then can measure the surface of inserting piece 15, when two pull rods 14 are not in the time of not using, make two pull rods 18 move to the outer surface of inserting piece 15 and insert the inside of two landing legs and pull rod 14, thereby can make two baffles 18 not receive the inside of two landing legs move to the inside and put up and use, thereby two baffles 18 can not make two baffles 18 and not convenient for taking up and not receive the whole measuring scale, two locating grooves, it can not convenient for use, two baffles 14, two locating grooves, two baffles 14, it can save the inside of taking up and put, two measuring scale, it can not use.

Preferably, the slider 3 is round platform form, and the slider 3 can rotate in the inside of spout 2, and the guide block 5 is square frame form setting, and the surface of guide block 5 suits with the inner wall of guiding ruler 6.

When rotating movable block 12, can drive connecting rod 11 and support board 10 and rotate, telescopic link A7 rotates then and drives slider 3 and rotate, combine the rotation of slider 3, can drive guide block 5 and rotate, can drive guiding rule 6 then and rotate, make a side of guiding rule 6 can laminate with the inclined plane of different angles, thereby make and rotate movable block 12 and can drive guiding rule 6 and rotate, make a side of guiding rule 6 can laminate with the inclined plane of different angles, the staff of being convenient for measures.

Preferably, the size of the guiding rule 6 is smaller than the size of the two guiding grooves 4, and the size of the sliding groove 2 inside the main rule 1 is larger than the size of the guiding rule 6.

When needs are accomodate guiding ruler 6, remove through pressing movable block 12, make slider 3 remove to 2 inside one sides of spout, stimulate guiding ruler 6 again, until when rotating movable block 12, can make guiding ruler 6 rotate and accomodate to the inside of spout 2, then loosen movable block 12, can be fixed in the inside of main scale 1 with guiding ruler 6, it rocks to be difficult to make guiding ruler 6 take place, thereby make guiding ruler 6 can accomodate in the inside of spout 2 when not using, and the space is saved, be convenient for carry the dipperstick.

Preferably, the two sides of the guiding rule 6, which are close to one side surface of the movable block 12, are provided with scale marks, the outer surface of the main rule 1 is provided with scale marks, and the original point of the scale marks on the outer surface of the main rule 1 is located at the center of the scale marks on the main rule 1.

When needs are measured the plane, can place the measuring plane in the both sides direction of guiding rule 6, combine guiding rule 6 to be close to the scale mark that the both sides of 12 side faces of movable block set up to and the original point of 1 surface scale mark of main scale is located the center department of 1 scale mark of main scale, can measure the measuring plane in a flexible way, thereby the staff of being convenient for measures the measuring plane, saves time.

Preferably, a rubber pad is bonded on the outer surface of the movable block 12, and anti-skid lines are arranged on the outer surface of the rubber pad.

When moving or rotating the movable block 12, combine the rubber pad that the movable block 12 surface binded to and the anti-skidding line that the rubber pad surface was seted up, can increase the frictional force between movable block 12 and the hand to the staff of being convenient for removes and rotates movable block 12, avoids taking place to skid.

The present invention has been described in detail with reference to the specific embodiments, and it should not be construed that the embodiments of the present invention are limited to the description. For a person skilled in the art to which the invention pertains, several equivalent alternatives or obvious modifications, all of which have the same properties or uses, should be considered as belonging to the scope of protection of the invention, as determined by the claims submitted, without departing from the inventive concept.

Claims

1. Ruler for measurement is used to irregular bottom surface, including main scale (1) and guiding rule (6) that are provided with the scale mark respectively, its characterized in that:

the outer surface of the main ruler (1) is provided with a sliding groove (2), the surfaces of two sides of the main ruler (1) are provided with guide grooves (4), and the two guide grooves (4) are arranged correspondingly;

a sliding block (3) is connected to the inside of the sliding groove (2) in a sliding mode, a guide block (5) is fixedly connected to one side face of the sliding block (3), a guiding rule (6) is sleeved on the outer surface of the guide block (5), the guiding rule (6) is located on the upper side of the sliding block (3), and two ends of the guiding rule (6) penetrate through the two guide grooves (4);

one side face of the sliding block (3) is fixedly connected with two telescopic rods A (7), one end, far away from the sliding block (3), of each telescopic rod A (7) is fixedly connected with a supporting plate (10), one side face, far away from the sliding block (3), of each supporting plate (10) is in close contact with the inner wall of the sliding groove (2), springs A (9) are sleeved on the outer surfaces of the two telescopic rods A (7), and the two springs A (9) are located between the sliding block (3) and the supporting plates (10);

one side face, far away from the sliding block (3), of the abutting plate (10) is fixedly connected with a connecting rod (11), one end, far away from the abutting plate (10), of the connecting rod (11) penetrates through the top of the sliding groove (2), and a movable block (12) is fixedly mounted at one end, far away from the abutting plate (10), of the connecting rod (11).

2. The ruler for measuring an irregular bottom surface according to claim 1, wherein:

the leveling instrument (8) is arranged on the outer surface of the main scale (1), two accommodating grooves (13) are formed in one side surface, far away from the movable block (12), of the main scale (1), supporting legs (14) are hinged to the inner walls of the two accommodating grooves (13), and the two supporting legs (14) are symmetrically arranged;

an inserting block (15) is inserted into the opposite surface of one supporting leg (14) and the other supporting leg (14), a thread groove (16) is formed in the outer surface of one supporting leg (14), a bolt (17) is connected to the inner wall of the thread groove (16) in a meshed mode, and one end, close to the supporting leg (14), of the bolt (17) is in close contact with the outer surface of the inserting block (15);

two fixing grooves (19) are formed in the surface of one side of the main scale (1), the two fixing grooves (19) are communicated with the accommodating groove (13), the two fixing grooves (19) are symmetrically arranged, telescopic rods B (20) are fixedly connected to opposite surfaces of the two fixing grooves (19), baffle plates (22) are fixedly mounted on opposite surfaces of the two telescopic rods B (20), the two baffle plates (22) are located on the lower sides of the supporting legs (14), and springs B (21) are sleeved on the outer surfaces of the two telescopic rods B (20);

the side surfaces of the two baffles (22) are fixedly connected with pull rods (18), and one ends, far away from the baffles (22), of the two pull rods (18) penetrate through the surface of one side of the main scale (1).

3. The ruler for measuring an irregular bottom surface according to claim 1, wherein: the slider (3) are the round platform form, slider (3) can the inside of spout (2) is rotated, guide block (5) are the square frame form and set up, the surface of guide block (5) with the inner wall of guiding ruler (6) suits.

4. The ruler for measuring an irregular bottom surface according to claim 1, wherein:

the guiding rule (6) is smaller than the two guide grooves (4), and the sliding groove (2) is located in the main rule (1) and larger than the guiding rule (6).

5. The ruler for measuring an irregular bottom surface according to claim 1, wherein:

the guiding rule (6) is close to both sides of a side face of the movable block (12) and is provided with scale marks, the outer surface of the main rule (1) is provided with the scale marks, and the original point of the scale marks on the outer surface of the main rule (1) is located at the center of the scale marks of the main rule (1).

6. The ruler for measuring an irregular bottom surface according to claim 1, wherein:

the outer surface of the movable block (12) is bonded with a rubber pad, and the outer surface of the rubber pad is provided with anti-skid grains.