Drawing measuring scale for construction engineering

Abstract

The application discloses a drawing measuring ruler for building engineering and belongs to the technical field of measuring rulers, which comprises a measuring ruler main body, the upper end face of the measuring ruler main body is provided with a sliding groove one, a sliding block is slidably connected in the sliding groove one, an auxiliary ruler is fixedly installed at the right end face of the sliding block, a limiting head is fixedly installed at the end of the auxiliary ruler, the front end faces of the auxiliary ruler and the measuring ruler main body are both provided with a scale, an adjusting mechanism is arranged in the sliding groove one, an inner cavity is formed in the sliding block, the adjusting mechanism comprises a fixing piece arranged in the inner cavity, the fixing piece comprises a wedge block one arranged in the inner cavity, and a sliding groove two is formed in the front end face of the wedge block one. According to the scheme, the length of the auxiliary ruler drawn out of the measuring ruler main body can be adjusted, the fixing piece, the auxiliary piece and the reinforcing piece are arranged, the stability between the auxiliary ruler and the measuring ruler main body during measurement is enhanced, and the influence of external force on the auxiliary ruler on the shaking and the measurement accuracy is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of measuring ruler, more particularly to a drawing measuring ruler for construction engineering. BACKGROUND

[0002] The engineering cost refers to the total fixed asset investment cost of the expected or actual expenditure of a project, that is, the total sum of one-time cost required for forming corresponding fixed assets and intangible assets through construction of a project, and the relevant drawings and measuring rulers are usually required in the engineering cost.

[0003] In the field of engineering cost, the measuring ruler is a commonly used tool, which is mainly used for measuring drawings to calculate the cost. The telescopic head design should take into account the convenience of carrying and lengthening the measurement. However, most products on the market use screws to fix the telescopic head and the main ruler, and this installation method has an obvious disadvantage: after tightening, there is still a gap, which causes the telescopic head to shake left and right during measurement, just like a drawer that is not tightly closed will shake. Especially when repeatedly pulling or laterally forcing, the loose structure will cause the scale line to be misaligned, directly affecting the accuracy of the measurement result. SUMMARY

[0004] In view of the problems in the prior art, the purpose of the present application is to provide a drawing measuring ruler for construction engineering, which can enhance the stability between the auxiliary ruler and the main measuring ruler during use.

[0005] To solve the above problems, the technical scheme adopted by the present application is as follows.

[0006] A drawing measuring ruler for construction engineering, comprising a measuring ruler main body, a sliding groove one is formed on the upper end face of the measuring ruler main body, a sliding block is slidably connected in the sliding groove one, an auxiliary ruler is fixedly installed on the right end face of the sliding block, a limiting head is fixedly installed at the end of the auxiliary ruler, a scale is formed on the front end face of the auxiliary ruler and the measuring ruler main body, an adjusting mechanism is arranged in the sliding groove one, an inner cavity is formed in the sliding block, the adjusting mechanism comprises a fixing piece arranged in the inner cavity, the fixing piece comprises a wedge block one arranged in the inner cavity, a sliding groove two is formed on the front end face of the wedge block one, a fixing rod is fixedly installed in the inner cavity, the fixing rod is slidably connected with the sliding groove two, a threaded sleeve is fixedly installed on the upper end face of the wedge block one, a threaded rod is screwedly connected with the upper end of the threaded sleeve, a handle is arranged on the upper side of the sliding block, the upper end of the threaded rod extends to the upper side of the sliding block and is fixedly connected with the handle, and the threaded rod is rotatably connected with the sliding block.

[0007] The lower side of the wedge piece one is symmetrically provided with two groups of wedge piece two, the outer side of the two groups of wedge piece two is fixedly installed with an inserting rod, the inserting rod is slidably connected with a sliding block, spring two is fixedly installed between the wedge piece two and the inner wall of the inner cavity, and the spring two is sleeved on the outer surface of the inserting rod.

[0008] The inner wall of the sliding groove one is provided with a sliding rail, the inner side of the sliding rail is provided with a resisting block, and the inserting rod extends to the inner side of the sliding rail and is fixedly connected with the resisting block.

[0009] The fixing piece further comprises an auxiliary piece arranged in the inserting rod, the auxiliary piece comprises a cross rod fixedly installed on the left end face and the right end face of the wedge piece one, the upper end face of the wedge piece two is provided with a notch, the inner side of the notch is provided with a limiting disc, and spring one is fixedly installed between the limiting disc and the inner lower end face of the notch.

[0010] The inner side of the wedge piece two is provided with a guide cavity, a memory alloy strip is slidably connected in the guide cavity, the inner side of the inserting rod is provided with a piston cavity, and a piston plate one is slidably connected in the piston cavity.

[0011] One end of the memory alloy strip extends to the inner side of the notch and is fixedly connected with the limiting disc, and the other end of the memory alloy strip extends to the inner side of the piston cavity and is fixedly connected with the piston plate one.

[0012] The inner side of the resisting block is provided with a sealing cavity one, the sealing cavity one and the piston cavity are communicated with each other, and the inner upper side and the inner lower side of the sealing cavity one are slidably connected with a piston plate two.

[0013] The upper side and the lower side of the resisting block are provided with a top plate, a connecting column one is fixedly installed between the top plate and the piston plate two, and the connecting column one is slidably connected with the resisting block.

[0014] The adjusting mechanism further comprises a reinforcing piece arranged at the lower side of the sliding block, the reinforcing piece comprises an extrusion plate fixedly installed at the lower end face of the wedge piece two, and a gas bag is fixedly installed between the extrusion plate and the inner wall of the inner cavity.

[0015] The inner lower side of the sliding block is provided with a sealing cavity two, a communication pipe is arranged between the sealing cavity two and the gas bag, a piston plate three is slidably connected in the sealing cavity two, the lower side of the sliding block is provided with a pressing plate, a connecting column two is fixedly installed between the pressing plate and the piston plate three, and the connecting column two is slidably connected with the sliding block.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] (1) the scheme is through the setting adjustment mechanism, the length of the auxiliary ruler from the measuring ruler body is adjusted, and the stability between the auxiliary ruler and the measuring ruler body during measurement is enhanced through the fixing part, the auxiliary part and the reinforcing part, the surface auxiliary ruler is not affected by the shaking influence of external force, and the measurement precision is influenced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the overall structure schematic view of the present application;

[0019] Figure 2 is the overall structure schematic view of the present application; Figure 1 is the enlarged schematic view of A in the present application;

[0020] Figure 3 is the overall structure sectional view of the present application;

[0021] Figure 4 is the overall structure schematic view of the present application; Figure 3 is the enlarged schematic view of B in the present application;

[0022] Figure 5 is the overall structure schematic view of the present application; Figure 3 is the enlarged schematic view of C in the present application;

[0023] Figure 6 is the overall structure schematic view of the present application; Figure 3 is the enlarged schematic view of D in the present application.

[0024] Mark explanation in the drawing:

[0025] 1, measuring ruler body;2, sliding groove one;3, sliding block;4, auxiliary ruler;5, limit head;6, handle;7, inner cavity;8, wedge one;9, fixed rod;10, sliding groove two;11, threaded sleeve;12, threaded rod;13, wedge two;14, insertion rod;15, sliding rail;16, abutting block;17, cross bar;18, slot;19, limit disc;20, spring one;21, guide cavity;22, memory alloy strip;23, piston cavity;24, connecting column two;25, spring two;26, piston plate one;27, sealing cavity one;28, piston plate two;29, top plate;30, connecting column one;31, extrusion plate;32, air bag;33, sealing cavity two;34, communication pipe;35, piston plate three;36, lower pressing plate. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application;Obviously, the described embodiments are only part of the embodiments of the present application, and not all the embodiments;Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0027] Please refer to Figures 1 to 6The utility model provides a kind of drawing measuring scale for constructional engineering, including measuring scale main body 1, the upper end surface of measuring scale main body 1 is equipped with sliding slot one 2, sliding block 3 is slidably connected in the inside of sliding slot one 2, the right end surface of sliding block 3 is fixedly installed with auxiliary ruler 4, limit head 5 is fixedly installed at the end of auxiliary ruler 4, the front end surface of auxiliary ruler 4 and the front end surface of measuring scale main body 1 are all equipped with scale, adjusting mechanism is provided in the inside of sliding slot one 2, inner cavity 7 is equipped in the inside of sliding block 3, adjusting mechanism includes the fixed part being arranged in the inside of inner cavity 7, fixed part includes wedge block one 8 being arranged in the inside of inner cavity 7, sliding slot two 10 is equipped in the front end surface of wedge block one 8, fixed rod 9 is fixedly installed in the inside of inner cavity 7, fixed rod 9 is slidably connected with sliding slot two 10, the upper end surface of wedge block one 8 is fixedly installed with threaded sleeve 11, threaded rod 12 is screw transmission connected in the upper end of threaded sleeve 11, handle 6 is arranged on the upper side of sliding block 3, the upper end of threaded rod 12 extends to the upper side of sliding block 3 and is fixedly connected with handle 6, threaded rod 12 is rotatably connected with sliding block 3.

[0028] Two groups of wedge block two 13 are symmetrically arranged on the lower side of wedge block one 8, two groups of wedge block two 13 are all fixedly installed with inserting rod 14 on the outside, inserting rod 14 is slidably connected with sliding block 3, spring two 25 is fixedly installed between wedge block two 13 and the inner wall of inner cavity 7, spring two 25 is sleeved on the outer surface of inserting rod 14.

[0029] The inner wall of sliding slot one 2 is equipped with slide rail 15, and the inside of slide rail 15 is provided with abutting block 16, and inserting rod 14 extends to the inside of slide rail 15 and is fixedly connected with abutting block 16.

[0030] When the size of auxiliary ruler 4 needs to be adjusted, the handle 6 on the threaded rod 12 is twisted to make the threaded rod 12 rise, and the auxiliary ruler 4 can be pulled out after being fixed, and after adjusting to the appropriate size, the handle 6 is twisted in the opposite direction to make the threaded rod 12 reverse, and the threaded rod 12 is screw transmission connected with the threaded sleeve 11 on the wedge block one 8, so that the wedge block one 8 will descend under the action of the threaded sleeve 11, and the two groups of wedge block two 13 are correspondingly arranged with the wedge block one 8, when the wedge block one 8 descends, the two groups of wedge block two 13 will displace to both sides under the action of the wedge block one 8, and press spring two 25, and the abutting block 16 is driven to abut against the inner wall of the slide rail 15 under the action of the inserting rod 14, and the two groups of abutting block 16 jointly act to preliminarily fix the sliding block 3 in the corresponding direction.

[0031] The fixed part further includes an auxiliary part arranged in the inserting rod 14, the auxiliary part includes a horizontal rod 17 fixedly installed on the left end surface and the right end surface of the wedge block one 8, a notch 18 is formed in the upper end surface of the wedge block two 13, a limit disc 19 is arranged in the inside of the notch 18, and a spring one 20 is fixedly installed between the limit disc 19 and the lower end surface in the inside of the notch 18.

[0032] The wedge block two 13 is internally provided with a guide cavity 21, the guide cavity 21 is internally slidably connected with a memory alloy strip 22, the plug rod 14 is internally provided with a piston cavity 23, the piston cavity 23 is internally slidably connected with a piston plate one 26.

[0033] One end of the memory alloy strip 22 extends to the inside of the slot 18 and is fixedly connected with the limiting disc 19, the other end of the memory alloy strip 22 extends to the inside of the piston cavity 23 and is fixedly connected with the piston plate one 26.

[0034] The inside of the abutting block 16 is provided with a sealing cavity one 27, the sealing cavity one 27 is in communication with the piston cavity 23, the inside of the sealing cavity one 27 is slidably connected with a piston plate two 28 on the upper side and the lower side.

[0035] The upper side and the lower side of the abutting block 16 are provided with a top plate 29, the connecting column one 30 is fixedly installed between the top plate 29 and the piston plate two 28, and the connecting column one 30 is slidably connected with the abutting block 16.

[0036] At the same time, when the wedge block one 8 descends, the horizontal rod 17 will be carried to descend, the horizontal rod 17 will enter the inside of the slot 18 and press the limiting disc 19, the limiting disc 19 presses the spring one 20 to descend, so that the memory alloy strip 22 slides in the guide cavity 21, the piston plate one 26 at the other end of the memory alloy strip 22 is displaced in the piston cavity 23, the gas in the piston cavity 23 is discharged into the sealing cavity one 27, so that the piston plate two 28 on the upper side and the lower side of the sealing cavity is displaced to the two sides, and the top plate 29 is abutted with the inner wall of the sliding rail 15 through the connecting column one 30, further enhancing the stability of the sliding block 3.

[0037] The adjusting mechanism further comprises a reinforcing part arranged on the lower side of the sliding block 3, the reinforcing part comprises an extrusion plate 31 fixedly installed on the lower end face of the wedge block two 13, and the gas bag 32 is fixedly installed between the extrusion plate 31 and the inner wall of the inner cavity 7.

[0038] The inside of the lower side of the sliding block 3 is provided with a sealing cavity two 33, the sealing cavity two 33 is in communication with the gas bag 32 through the communication pipe 34, the sealing cavity two 33 is slidably connected with a piston plate three 35, the lower side of the sliding block 3 is provided with a pressing plate 36, the connecting column two 24 is fixedly installed between the pressing plate 36 and the piston plate three 35, and the connecting column two 24 is slidably connected with the sliding block 3.

[0039] And the lower end surface of two groups of wedge block two 13 are fixedly installed with extrusion plate 31, and the extrusion plate 31 is fixedly installed with air bag 32 between the inner wall of inner cavity 7, when two groups of wedge block two 13 displace to both sides, air bag 32 will be extruded, the gas in the air bag 32 is discharged into the inside of sealed cavity two 33 through the communication pipe 34, the piston plate three 35 slidingly connected in the sealed cavity two 33 will slide down, and the lower pressing plate 36 is lowered through the connecting column two 24, and the inner wall of the sliding groove one 2 is abutted, the sliding block 3 is firmly fixed in the inside of the sliding groove one 2 by cooperating with the fixed part and the auxiliary part, and the four-way stability of the sliding block 3 is completed.

[0040] In the field of engineering cost, measuring ruler is used as a common tool, mainly used to calculate the cost of drawing. Its telescopic head design should take into account the convenience of carrying and lengthening measurement. But most of the products on the market are fixed with screws. This installation method has a obvious disadvantage: after tightening, there is still a gap, which makes the telescopic head shake left and right during measurement, just like a drawer that is not closed tightly will shake. Especially when repeatedly pulling or laterally forcing, the loose structure will make the scale line misaligned, directly affecting the accuracy of the measurement result. Therefore, the present scheme adjusts the length of the auxiliary ruler 4 drawn out of the main body of the measuring ruler 1 by setting the adjusting mechanism, and divides the fixed part, auxiliary part and reinforcing part to enhance the stability between the auxiliary ruler 4 and the main body of the measuring ruler 1 during measurement, and the surface of the auxiliary ruler 4 is affected by external force to produce shaking and affect the measurement accuracy.

[0041] Method for use: when the size of the auxiliary ruler 4 needs to be adjusted, and the drawing is measured with the main body of the measuring ruler 1, turn the handle 6 on the threaded rod 12 to make the threaded rod 12 rise and release the fixation, then the auxiliary ruler 4 can be drawn out, after adjusting to the appropriate size, reverse the handle 6 to make the threaded rod 12 reverse, the threaded rod 12 and the threaded sleeve 11 on the wedge block one 8 are screw transmission connected, so the wedge block one 8 will descend under the action of the threaded sleeve 11, the two groups of wedge block two 13 are correspondingly arranged with the wedge block one 8, when the wedge block one 8 descends, the two groups of wedge block two 13 will displace to both sides under the action of the wedge block one 8, and extrude the spring two 25, the abutting block 16 is driven by the plug rod 14 to abut against the inner wall of the sliding rail 15, the two groups of abutting block 16 jointly fix the sliding block 3 in the corresponding position;

[0042] At the same time, when the wedge block one 8 descends, the horizontal rod 17 will descend and enter the inside of the slot 18 and extrude the limiting disc 19, the limiting disc 19 extrudes the spring one 20 to descend, so that the memory alloy strip 22 slides in the guide cavity 21, the piston plate one 26 at the other end of the memory alloy strip 22 displaces in the piston cavity 23, the gas in the piston cavity 23 is discharged into the sealed cavity one 27, so that the piston plate two 28 inside the sealed cavity is displaced to both sides, and the inner wall of the sliding rail 15 is abutted by the connecting column one 30, the top plate 29 and the sliding rail 15, further enhancing the stability of the sliding block 3.

[0043] And the lower end face of two groups of wedge block two 13 are fixedly installed with extrusion plate 31, extrusion plate 31 and the inner wall between the inner cavity 7 are fixedly installed with air bag 32, when two groups of wedge block two 13 are displaced to both sides, then extrude air bag 32, the gas in the inside of air bag 32 is discharged into the inside of sealed cavity two 33 through the communication pipe 34, the piston plate three 35 slidingly connected in the inside of sealed cavity two 33 will slide down, and through the connecting column two 24, the lower pressing plate 36 is lowered, and is in contact with the inner wall of the sliding groove one 2, and the sliding block 3 is firmly fixed in the inside of the sliding groove one 2 by cooperating with the fixed part and the auxiliary part, and the four-way stability of the sliding block 3 is completed.

[0044] The above is only the preferred specific implementation of the present application; but the protection scope of the present application is not limited to this. Any skilled person in the art, according to the technical solution of the present application and its improvement concept, within the technical range disclosed by the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A measuring ruler for architectural drawings, comprising a measuring ruler body (1), wherein a groove (2) is provided on the upper end face of the measuring ruler body (1), a slider (3) is slidably connected inside the groove (2), an auxiliary ruler (4) is fixedly installed on the right end face of the slider (3), a limit head (5) is fixedly installed on the end of the auxiliary ruler (4), and a scale is provided on the front end face of both the auxiliary ruler (4) and the measuring ruler body (1), characterized in that: An adjustment mechanism is provided inside the first slide (2). An inner cavity (7) is opened inside the slider (3). The adjustment mechanism includes a fixing component set inside the inner cavity (7). The fixing component includes a wedge (8) set inside the inner cavity (7). A second slide (10) is opened on the front end face of the wedge (8). A fixing rod (9) is fixedly installed inside the inner cavity (7). The fixing rod (9) is slidably connected to the second slide (10). A threaded sleeve (11) is fixedly installed on the upper end face of the wedge (8). A threaded rod (12) is screwed to the upper end of the threaded sleeve (11). A handle (6) is provided on the upper side of the slider (3). The upper end of the threaded rod (12) extends to the slider. (3) is fixedly connected to the handle (6) on the upper side. The threaded rod (12) is rotatably connected to the slider (3). Two sets of wedge blocks (13) are symmetrically arranged on the lower side of the wedge block (8). Insert rods (14) are fixedly installed on the outer side of the two sets of wedge blocks (13). Insert rods (14) are slidably connected to the slider (3). Springs (25) are fixedly installed between the wedge block (13) and the inner wall of the inner cavity (7). Springs (25) are sleeved on the outer surface of the insert rod (14). A slide rail (15) is opened on the inner wall of the slide groove (2). A stop block (16) is provided inside the slide rail (15). Insert rods (14) extend into the interior of the slide rail (15) and are fixedly connected to the stop block (16).

2. The measuring ruler for architectural drawings according to claim 1, characterized in that: The fixing component also includes an auxiliary component disposed inside the insert rod (14). The auxiliary component includes a crossbar (17) fixedly installed on both the left and right end faces of the wedge block (8). The upper end face of the wedge block (13) is provided with a slot (18). A limiting plate (19) is provided inside the slot (18). A spring (20) is fixedly installed between the limiting plate (19) and the lower end face of the slot (18).

3. A measuring ruler for architectural drawings according to claim 2, characterized in that: The wedge (13) has a guide cavity (21) inside, and a shape memory alloy strip (22) is slidably connected inside the guide cavity (21). The insert (14) has a piston cavity (23) inside, and a piston plate (26) is slidably connected inside the piston cavity (23).

4. A measuring ruler for architectural drawings according to claim 3, characterized in that: One end of the shape memory alloy strip (22) extends into the interior of the slot (18) and is fixedly connected to the limiting plate (19), and the other end of the shape memory alloy strip (22) extends into the interior of the piston cavity (23) and is fixedly connected to the piston plate (26).

5. A measuring ruler for architectural drawings according to claim 4, characterized in that: The abutment block (16) has a sealing cavity (27) inside, which is connected to the piston cavity (23). The upper and lower sides of the sealing cavity (27) are slidably connected to the piston plate (28).

6. A measuring ruler for architectural drawings according to claim 5, characterized in that: The upper and lower sides of the abutment block (16) are provided with top plates (29), and a connecting column (30) is fixedly installed between the top plate (29) and the piston plate (28). The connecting column (30) is slidably connected to the abutment block (16).

7. A measuring ruler for architectural drawings according to claim 6, characterized in that: The adjustment mechanism also includes a reinforcing member disposed on the lower side of the slider (3). The reinforcing member includes a pressing plate (31) fixedly installed on the lower end face of the wedge block (13). An airbag (32) is fixedly installed between the pressing plate (31) and the inner wall of the inner cavity (7).

8. A measuring ruler for architectural drawings according to claim 7, characterized in that: A sealing cavity 2 (33) is provided on the lower side of the slider (3). A connecting pipe (34) is provided between the sealing cavity 2 (33) and the airbag (32). A piston plate 3 (35) is slidably connected inside the sealing cavity 2 (33). A lower pressure plate (36) is provided on the lower side of the slider (3). A connecting column 2 (24) is fixedly installed between the lower pressure plate (36) and the piston plate 3 (35). The connecting column 2 (24) is slidably connected to the slider (3).

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