CN112697003A

CN112697003A - Civil engineering detects uses range unit

Info

Publication number: CN112697003A
Application number: CN202011595796.1A
Authority: CN
Inventors: 张亚伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-04-23

Abstract

The invention relates to the field of civil engineering detection and ranging, in particular to a ranging device for civil engineering detection, which comprises a ruler body component, a powder coating component, a first marking component and a second marking component, wherein the powder coating component is arranged below the ruler body component, the first marking component is arranged on one side of the ruler body component, and the second marking component is arranged between the first marking component and the ruler body component. Through setting up the whitewashed subassembly in chi body unit below, when handheld chi body unit spare, will first stir the piece and press down, first stir the piece and can drive the slide bar and vertically slide down, the slide bar can drive the slip post when sliding and extend first fixed sleeve, the slip post can drop subaerial through second through-hole, second recess and first through-hole with the mark powder in the second casing when extending first fixed sleeve to one section straight line of mark department.

Description

Civil engineering detects uses range unit

Technical Field

The invention relates to the field of civil engineering detection and ranging, in particular to a ranging device for civil engineering detection.

Background

Civil engineering refers to both the materials used, the equipment and the technical activities carried out, such as surveying, designing, constructing, maintaining, repairing, etc., and also to the objects of engineering construction. I.e. various engineering facilities, such as houses, roads, railways, pipes, tunnels, bridges, canals, dams, ports, power stations, airports, ocean platforms, water supply and drainage and protection projects, which are built on or under the ground, on the land or in water, and serve for human life, production, military affairs and scientific research directly or indirectly. Civil engineering needs to be detected before construction, and the length of land often needs to be measured when detecting.

The current range finding mode that is used for civil engineering to detect is direct through the tape measure mostly to measure, nevertheless can't be effectual when using the tape measure to measure marks subaerial to for the ease of construction after the range finding, still need mark out the measuring line segment subaerial, but current range finding device does not contain this function, need use artifical marking off mark, can make the efficiency greatly reduced who measures the mark.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a distance measuring device for civil engineering detection.

The technical scheme adopted by the invention for solving the technical problems is as follows: the distance measuring device for civil engineering detection comprises a ruler body assembly, a powder coating assembly, a first marking assembly and a second marking assembly, wherein the powder coating assembly is arranged below the ruler body assembly, the first marking assembly is arranged on one side of the ruler body assembly, and the second marking assembly is arranged between the first marking assembly and the ruler body assembly; the ruler body assembly comprises a first shell, a first partition plate and a second partition plate are fixedly connected to the inner wall of the first shell, a rotating column is rotatably inserted into the top of the first shell, one end, extending to the inside of the first shell, of the rotating column sequentially penetrates through the first partition plate and the second partition plate, the rotating column is rotatably connected with the first partition plate and the second partition plate, a spring is arranged above the first partition plate, one end of the spring is fixedly wound on the outer wall of the rotating column, the other end of the spring is fixedly connected with the inner wall of the first shell, a measuring tape is arranged above the second partition plate, one end of the measuring tape is fixedly wound on the outer wall of the rotating column, the other end of the measuring tape penetrates through the first shell, a sliding rod is slidably inserted into the top of the rotating column, and one end, far away from the rotating column, of the sliding rod is fixedly connected with a first shifting block, the utility model discloses a fixed seal groove of first casing, including first solid fixed ring, first spring cup joint on the pole wall of first solid fixed ring, first solid fixed ring sliding connection has first solid fixed ring to the pole wall of the inside one end of rotation post, the inside of rotation post corresponds first solid fixed ring and has seted up first recess, first solid fixed ring sliding connection is in the inside of first recess, first solid fixed ring's first spring of bottom fixedly connected with, first spring cup joints on the pole wall of slide bar, the support ring slides and cup joints on the pole wall of slide bar, the external thread groove has been seted up on the outer wall of first casing bottom, just first seal groove has been seted up to the bottom of first casing, the inside of first seal groove has inlayed first sealing washer.

Specifically, the dusting subassembly includes the second casing, the internal thread groove has been seted up on the inner wall at second casing top, internal thread groove and external thread groove phase-match set up, just second casing screw thread cup joints the bottom at first casing, the second seal groove has been seted up at the top of second casing, the inside of second seal groove has inlayed the second sealing washer, the bottom of second casing is run through to peg graft and is had first fixed sleeve, first fixed sleeve's inside slip is pegged graft and is had the slip post, the second recess has been seted up to the inside of slip post, run through respectively on the inner wall at second recess top and on the inner wall of bottom and seted up first through-hole and second through-hole.

Specifically, the first marking assembly comprises a second fixing sleeve, the second fixing sleeve is fixedly connected to one end of the tape measure far away from the first shell, a sliding sleeve is inserted into the top of the second fixing sleeve in a penetrating and sliding manner, second fixing rings are fixedly connected to the inner top and the inner top of the sliding sleeve, a first marking rod is inserted into the second fixing ring in a sliding manner, a sliding ring is fixedly sleeved on the rod wall of the first marking rod between the two second fixing rings and is connected with the sliding sleeve in a sliding manner, a second poking block is fixedly connected to the top of the first marking rod, a third groove is formed in the inner cylinder wall of the second fixing sleeve, a second spring is fixedly connected to the inner wall of one end of the sliding sleeve in the third groove, a sliding block is fixedly connected to the other end of the second spring, and is connected to the inside of the third groove in a sliding manner, the sliding block is far away from one end fixedly connected with inserted block of second spring, correspond the inserted block equidistant on sliding sleeve's the outer tube wall and seted up a plurality of slot, and a plurality of the slot all sets up with the inserted block phase-match.

Specifically, the second marking assembly comprises a clamping block, a fourth groove is formed in the bottom of the clamping block, the clamping block is clamped on the measuring tape through the fourth groove, an inserting rod is inserted into one end of the clamping block in a sliding mode, the inserting rod penetrates through one end of the clamping block and extends into the fourth groove, a third fixing ring is fixedly sleeved on the rod wall of the inserting rod, a fifth groove is formed in the clamping block corresponding to the third fixing ring, the third fixing ring is connected into the fifth groove in a sliding mode, a third spring is sleeved on the rod wall of the inserting rod, which is located at one end of the inner portion of the fifth groove, one end of the third spring is fixedly connected with the third fixing ring, the other end of the third spring is fixedly connected with the inner wall of the fifth groove, a third shifting block is fixedly connected to one end of the inserting rod, a third through hole is formed in the top of the clamping block, which is far away from one end of the inserting, a second marking rod is inserted in the third through hole in a sliding mode, and a fourth poking block is fixedly connected to the top of the second marking rod.

Specifically, a pressing plate is arranged above the sliding column, the pressing plate is fixedly sleeved on the rod wall of the sliding rod, and the pressing plate is connected with the inner walls of the first shell and the second shell in a sliding mode.

Specifically, the equal fixedly connected with spacing slider in both sides of sliding block, correspond spacing slider on the inner wall of third recess and set up the spacing spout of looks adaptation, spacing slider sliding connection is in the inside of spacing spout.

The invention has the beneficial effects that:

(1) according to the distance measuring device for civil engineering detection, the powder coating assembly is arranged below the ruler body assembly, when the ruler body assembly is held by a hand, the first poking block is pressed downwards, the first poking block can drive the sliding rod to vertically slide downwards, the sliding rod can drive the sliding column to extend out of the first fixed sleeve when sliding, and when the sliding column extends out of the first fixed sleeve, the marking powder in the second shell can fall on the ground through the second through hole, the second groove and the first through hole, so that a section of straight line is marked.

(2) According to the distance measuring device for civil engineering detection, the first marking component is arranged, the first marking rod in the first marking component can be accurately inserted and connected under the stirring of the second stirring block to fix one end of the tape at the initial point of distance measurement, the tape body component is convenient to pull, and the measurement can be completed by only one person during distance measurement.

(3) According to the distance measuring device for civil engineering detection, the second marking assembly is arranged between the ruler body assembly and the first marking assembly, the clamping block in the second marking assembly is clamped on the tape measure, the special-shaped second marking rod can be inserted on the ground through the fourth shifting block, and the second marking rod is of a special-shaped structure, so that the second marking rod cannot deviate and have errors when being inserted on the ground.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of a distance measuring device for civil engineering detection according to the present invention;

FIG. 2 is a schematic structural view of a sliding column in the distance measuring device for civil engineering inspection according to the present invention;

fig. 3 is a schematic structural view of a second housing in the distance measuring device for civil engineering detection according to the present invention;

FIG. 4 is a schematic structural diagram of a second marking assembly in the distance measuring device for civil engineering inspection according to the present invention;

fig. 5 is a partially enlarged view of a portion a in fig. 1 of a distance measuring device for civil engineering inspection according to the present invention;

fig. 6 is a partially enlarged view of a portion B in fig. 1 of a distance measuring device for civil engineering detection according to the present invention;

fig. 7 is a partially enlarged view of a portion C in fig. 1 of a distance measuring device for civil engineering detection according to the present invention;

fig. 8 is a partially enlarged view of a portion D in fig. 4 of the distance measuring device for civil engineering detection according to the present invention.

In the figure: 1. a blade assembly; 11. a first housing; 12. a first partition plate; 13. rotating the column; 14. a clockwork spring; 15. a tape measure; 16. a second partition plate; 17. a slide bar; 18. a first toggle block; 19. a first retaining ring; 110. a first groove; 111. a first spring; 112. a support ring; 113. an outer thread groove; 114. a first seal groove; 115. a first seal ring; 2. a dusting assembly; 21. a second housing; 22. an internal thread groove; 23. a second seal groove; 24. a second seal ring; 25. a first fixed sleeve; 26. a sliding post; 27. pressing a plate; 28. a second groove; 29. a first through hole; 210. a second through hole; 3. a first marker component; 31. a second fixed sleeve; 32. a sliding sleeve; 33. a second retaining ring; 34. a first marker post; 35. a second toggle block; 36. a slip ring; 37. a third groove; 38. a second spring; 39. a slider; 310. a limiting slide block; 311. a limiting chute; 312. inserting a block; 313. a slot; 4. a second marker component; 41. a clamping block; 42. a fourth groove; 43. inserting a rod; 44. a third fixing ring; 45. a fifth groove; 46. a third spring; 47. a third toggle block; 48. a third through hole; 49. a second marker post; 410. and a fourth toggle block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1-8, the distance measuring device for civil engineering detection according to the present invention comprises a ruler body assembly 1, a powder coating assembly 2, a first marking assembly 3 and a second marking assembly 4, wherein the powder coating assembly 2 is disposed below the ruler body assembly 1, the first marking assembly 3 is disposed on one side of the ruler body assembly 1, and the second marking assembly 4 is disposed between the first marking assembly 3 and the ruler body assembly 1; the ruler body assembly 1 comprises a first shell 11, a first partition plate 12 and a second partition plate 16 are fixedly connected to the inner wall of the first shell 11, a rotating column 13 is rotatably inserted into the top of the first shell 11, one end of the rotating column 13 extending into the first shell 11 sequentially penetrates through the first partition plate 12 and the second partition plate 16, the rotating column 13, the first partition plate 12 and the second partition plate 16 are rotatably connected, a spiral spring 14 is arranged above the first partition plate 12, one end of the spiral spring 14 is fixedly wound on the outer wall of the rotating column 13, the other end of the spiral spring 14 is fixedly connected with the inner wall of the first shell 11, a flexible rule 15 is arranged above the second partition plate 16, one end of the flexible rule 15 is fixedly wound on the outer wall of the rotating column 13, the other end of the flexible rule 15 penetrates through the first shell 11, a sliding rod 17 is slidably inserted into the top of the rotating column 13, a first poking block 18 is fixedly connected at one end of the sliding rod 17 far away from the rotating column 13, a first fixing ring 19 is fixedly sleeved on the rod wall of the sliding rod 17 inserted at one end inside the rotating column 13, the inside of the rotating column 13 is opened with a first groove 110 corresponding to the first fixing ring 19, the first fixing ring 19 is slidably connected inside the first groove 110, the bottom of the first fixing ring 19 is fixedly connected with a first spring 111, the first spring 111 is sleeved on the rod wall of the sliding rod 17, the end of the first spring 111 remote from the first fixing ring 19 is fixedly connected with a supporting ring 112, the support ring 112 is slidably sleeved on the rod wall of the sliding rod 17, an external thread groove 113 is formed on the outer wall of the bottom of the first shell 11, a first sealing groove 114 is formed at the bottom of the first housing 11, and a first sealing ring 115 is embedded in the first sealing groove 114.

Specifically, dusting subassembly 2 includes second casing 21, internal thread groove 22 has been seted up on the inner wall at second casing 21 top, internal thread groove 22 sets up with external thread groove 113 phase-match, just second casing 21 screw thread cup joints the bottom at first casing 11, second seal groove 23 has been seted up at the top of second casing 21, the inside of second seal groove 23 has inlayed second sealing washer 24, the bottom of second casing 21 is run through to peg graft and is had first fixed sleeve 25, the inside slip of first fixed sleeve 25 is pegged graft and is had sliding column 26, second recess 28 has been seted up to sliding column 26's inside, run through respectively on the inner wall at second recess 28 top and on the inner wall of bottom and seted up first through-hole 29 and second through-hole 210.

Specifically, the first marking assembly 3 includes a second fixing sleeve 31, the second fixing sleeve 31 is fixedly connected to one end of the tape 15 far from the first housing 11, a sliding sleeve 32 is inserted into a top portion of the second fixing sleeve 31 in a penetrating and sliding manner, second fixing rings 33 are fixedly connected to both an inner top portion and an inner top portion of the sliding sleeve 32, a first marking rod 34 is inserted into an inner portion of the second fixing ring 33 in a sliding manner, a sliding ring 36 is fixedly connected to a rod wall of the first marking rod 34 between the two second fixing rings 33 in a sliding manner, the sliding ring 36 is slidably connected to an inner wall of the sliding sleeve 32, a second toggle block 35 is fixedly connected to a top portion of the first marking rod 34, a third groove 37 is formed in an inner wall of the second fixing sleeve 31, and a second spring 38 is fixedly connected to an inner wall of one end of the sliding sleeve 32 inside the third groove 37, the other end of the second spring 38 is fixedly connected with a sliding block 39, the sliding block 39 is slidably connected inside the third groove 37, one end of the sliding block 39, which is far away from the second spring 38, is fixedly connected with an insertion block 312, a plurality of slots 313 are formed in the outer cylinder wall of the sliding sleeve 32, which correspond to the insertion block 312, at equal intervals, and the slots 313 are all matched with the insertion block 312.

Specifically, the second marking assembly 4 includes a fixture block 41, a fourth groove 42 is formed at the bottom of the fixture block 41, the fixture block 41 is connected to the measuring tape 15 through the fourth groove 42 in a clamping manner, an insertion rod 43 is inserted into one end of the fixture block 41 in a sliding manner, the insertion rod 43 passes through one end of the fixture block 41 and extends into the fourth groove 42, a third fixing ring 44 is fixedly sleeved on a rod wall of the insertion rod 43, a fifth groove 45 is formed in the fixture block 41 corresponding to the third fixing ring 44, the third fixing ring 44 is slidably connected inside the fifth groove 45, a third spring 46 is sleeved on a rod wall of one end of the insertion rod 43 located inside the fifth groove 45, one end of the third spring 46 is fixedly connected to the third fixing ring 44, the other end of the third spring 46 is fixedly connected to an inner wall of the fifth groove 45, and a third shifting block 47 is fixedly connected to one end of the insertion rod 43 far from the fixture block 41, a third through hole 48 is formed through the top of one end of the fixture block 41, which is far away from the insertion rod 43, a second marking rod 49 is inserted into the third through hole 48 in a sliding manner, and a fourth toggle block 410 is fixedly connected to the top of the second marking rod 49.

Specifically, a pressing plate 27 is arranged above the sliding column 26, the pressing plate 27 is fixedly sleeved on the rod wall of the sliding rod 17, and the pressing plate 27 is connected with the inner walls of the first shell 11 and the second shell 21 in a sliding manner, so that the sliding rod 17 can drive the pressing plate 27 to pressurize the inside of the second shell 21 when sliding, and the coating powder inside the second shell 21 can be more effectively discharged to the inside of the second groove 28.

Specifically, the equal fixedly connected with spacing slider 310 in both sides of sliding block 39, correspond spacing slider 310 on the inner wall of third recess 37 and set up the spacing spout 311 of looks adaptation, spacing slider 310 sliding connection is in the inside of spacing spout 311, and spacing slider 310 can make sliding block 39 more stable when the inside of third recess 37 slides when the inside of spacing spout 311 slides.

When the ruler is used, the sliding sleeve 32 is held by a hand, the first mark rod 34 is pushed to be inserted at the initial point of distance measurement through the second poking block 35, the diameter of the second poking block 35 is large, the contact area of the first mark rod 34 and a palm when the first mark rod 34 is pressed down can be increased, the first mark rod 34 can be inserted and pulled more easily, the terrain with more distance measurement can be obtained after the first mark rod 34 is marked, the height of the second fixing sleeve 31 from the ground can be adjusted, the second fixing sleeve 31 can be lifted and slid along the outer wall of the sliding sleeve 32, when in measurement, the first shell 11 and the second shell 21 are held by the hand and pulled, because one end of the tape 15 is fixedly connected with the second fixing sleeve 31, the tape 15 is measured by extending from the inside of the first shell 11, when the ruler assembly 1 is held by the hand, the first poking block 18 is pressed downwards, and the first poking block 18 can drive the sliding rod 17 to vertically slide downwards, the slide bar 17 can drive the slide column 26 to extend out of the first fixing sleeve 25 when sliding, the slide column 26 can drop the marking powder in the second shell 21 on the ground through the second through hole 210 and the second groove 28 and the first through hole 29 when extending out of the first fixing sleeve 25, thereby marking a section of straight line at the position, the second marking assembly 4 between the ruler body assembly 1 and the first marking assembly 3, the fixture block 41 in the second marking assembly 4 is clamped on the tape measure 15, namely the special-shaped second marking rod 49 can be inserted on the ground through the fourth toggle block 410, and because the second marking rod 49 is of a special-shaped structure, the second marking rod 49 can not cause deviation and error when being inserted on the ground.

The invention has the beneficial effects that:

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a civil engineering detects uses range unit, its characterized in that, includes chi body subassembly (1), scribbles whitewashed subassembly (2), first mark subassembly (3) and second mark subassembly (4), scribble whitewashed subassembly (2) and set up the below at chi body subassembly (1), first mark subassembly (3) set up the one side at chi body subassembly (1), just second mark subassembly (4) set up between first mark subassembly (3) and chi body subassembly (1): the ruler body assembly (1) comprises a first shell (11), a first partition plate (12) and a second partition plate (16) are fixedly connected to the inner wall of the first shell (11), a rotating column (13) is rotatably inserted into the top of the first shell (11), one end, extending to the inside of the first shell (11), of the rotating column (13) sequentially penetrates through the first partition plate (12) and the second partition plate (16), the rotating column (13) is rotatably connected with the first partition plate (12) and the second partition plate (16), a clockwork spring (14) is arranged above the first partition plate (12), one end of the clockwork spring (14) is fixedly wound on the outer wall of the rotating column (13), the other end of the clockwork spring (14) is fixedly connected with the inner wall of the first shell (11), a measuring tape (15) is arranged above the second partition plate (16), and one end of the clockwork spring (15) is fixedly wound on the outer wall of the rotating column (13), the other end of the measuring tape (15) penetrates through the first shell (11), a sliding rod (17) is inserted at the top of the rotating column (13) in a sliding mode, one end, far away from the rotating column (13), of the sliding rod (17) is fixedly connected with a first shifting block (18), the sliding rod (17) is inserted on the rod wall of one end inside the rotating column (13) in a fixed mode and is fixedly connected with a first fixing ring (19), a first groove (110) is formed in the rotating column (13) corresponding to the first fixing ring (19), the first fixing ring (19) is connected to the first groove (110) in a sliding mode, a first spring (111) is fixedly connected to the bottom of the first fixing ring (19), the first spring (111) is sleeved on the rod wall of the sliding rod (17), and a support ring (112) is fixedly connected to one end, far away from the first fixing ring (19), of the first spring (111), the support ring (112) is sleeved on the rod wall of the sliding rod (17) in a sliding mode, an outer thread groove (113) is formed in the outer wall of the bottom of the first shell (11), a first sealing groove (114) is formed in the bottom of the first shell (11), and a first sealing ring (115) is embedded in the first sealing groove (114).

2. The distance measuring device for civil engineering detection as claimed in claim 1, wherein: the powder coating component (2) comprises a second shell (21), an inner thread groove (22) is formed in the inner wall of the top of the second shell (21), the inner thread groove (22) is matched with the outer thread groove (113), the second shell (21) is sleeved at the bottom of the first shell (11) in a threaded manner, a second sealing groove (23) is formed in the top of the second shell (21), a second sealing ring (24) is embedded in the second sealing groove (23), a first fixed sleeve (25) is inserted at the bottom of the second shell (21), a sliding column (26) is inserted in the first fixing sleeve (25) in a sliding manner, a second groove (28) is formed in the sliding column (26), and a first through hole (29) and a second through hole (210) are respectively formed in the inner wall of the top and the inner wall of the bottom of the second groove (28) in a penetrating mode.

3. The distance measuring device for civil engineering detection as claimed in claim 1, wherein: the first marking assembly (3) comprises a second fixing sleeve (31), the second fixing sleeve (31) is fixedly connected to one end, far away from the first shell (11), of the tape measure (15), the top of the second fixing sleeve (31) is penetrated through and slidably inserted with a sliding sleeve (32), both the inner top and the inner top of the sliding sleeve (32) are fixedly connected with second fixing rings (33), a first marking rod (34) is slidably inserted in the second fixing rings (33), a sliding ring (36) is fixedly sleeved on the rod wall of the first marking rod (34) between the two second fixing rings (33), the sliding ring (36) is slidably connected with the inner wall of the sliding sleeve (32), the top of the first marking rod (34) is fixedly connected with a second shifting block (35), and a third groove (37) is formed in the inner cylinder wall of the second fixing sleeve (31), fixedly connected with second spring (38) on the inner wall of the inside one end sliding sleeve (32) one end of third recess (37), the other end fixedly connected with sliding block (39) of second spring (38), sliding block (39) sliding connection is in the inside of third recess (37), the one end fixedly connected with inserted block (312) of second spring (38) are kept away from to sliding block (39), correspond inserted block (312) on the urceolus wall of sliding sleeve (32) and equidistant a plurality of slot (313) of having seted up, and a plurality of slot (313) all set up with inserted block (312) phase-match.

4. The distance measuring device for civil engineering detection as claimed in claim 1, wherein: the second marking assembly (4) comprises a clamping block (41), a fourth groove (42) is formed in the bottom of the clamping block (41), the clamping block (41) is clamped on the measuring tape (15) through the fourth groove (42), an inserting rod (43) is inserted into one end of the clamping block (41) in a sliding mode, the inserting rod (43) penetrates through one end of the clamping block (41) and extends into the fourth groove (42), a third fixing ring (44) is fixedly sleeved on the rod wall of the inserting rod (43), a fifth groove (45) is formed in the clamping block (41) corresponding to the third fixing ring (44), the third fixing ring (44) is connected into the fifth groove (45) in a sliding mode, a third spring (46) is sleeved on the rod wall of one end, located in the fifth groove (45), of the inserting rod (43), and one end of the third spring (46) is fixedly connected with the third fixing ring (44), the other end of the third spring (46) is fixedly connected with the inner wall of the fifth groove (45), one end, far away from the fixture block (41), of the insertion rod (43) is fixedly connected with a third toggle block (47), the top, far away from one end of the insertion rod (43), of the fixture block (41) is provided with a third through hole (48) in a penetrating mode, a second mark rod (49) is inserted into the third through hole (48) in a sliding mode, and the top of the second mark rod (49) is fixedly connected with a fourth toggle block (410).

5. The distance measuring device for civil engineering detection as claimed in claim 2, wherein: a pressing plate (27) is arranged above the sliding column (26), the pressing plate (27) is fixedly sleeved on the rod wall of the sliding rod (17), and the pressing plate (27) is connected with the inner walls of the first shell (11) and the second shell (21) in a sliding mode.

6. The distance measuring device for civil engineering detection as claimed in claim 3, wherein: the equal fixedly connected with spacing slider (310) in both sides of sliding block (39), spacing spout (311) of looks adaptation are seted up corresponding spacing slider (310) on the inner wall of third recess (37), spacing slider (310) sliding connection is in the inside of spacing spout (311).