Measuring device for constructional engineering

Abstract

The invention discloses a measuring device for constructional engineering, and relates to the technical field of engineering surveying, the measuring device for constructional engineering comprises a measuring rod, the top of the measuring rod is fixedly connected with a measuring disc, and a plurality of first piston cavities are formed in the measuring disc. An operator inserts a measuring disc into a down lamp hole and then drives oil in an inner cavity of a first piston cavity to move, so that a first piston block pushes measuring columns to move, the measuring disc is centered through the multiple measuring columns, and when the measuring columns make contact with the inner wall of the down lamp hole, the piston columns cannot be continuously pushed to move; the extension length of the measuring column is obtained by observing the scale of the graduated scale pointed by the finger block, so that the inner diameter of the down lamp hole is obtained, and if the inner diameter of the down lamp hole meets the requirement, whether the inner diameter of the down lamp hole meets the requirement can be automatically measured without climbing during acceptance of a customer.

Description

Technical Field

[0001] The invention relates to the technical field of engineering measurement, in particular to a measurement device for construction engineering. Background Art

[0002] Downlights are lamps with a screw-type lamp holder that can be directly installed with incandescent lamps or energy-saving lamps. During construction, it is necessary to carry out interior decoration. During interior decoration, it is necessary to open holes for downlights on the indoor ceiling. However, during customer acceptance, because the holes for downlights are opened on the ceiling, it is inconvenient to measure the inner diameter of the holes for downlights opened on the ceiling. If the inner diameter of the holes for downlights opened is smaller or larger than the diameter of the downlights to be installed, it will affect the installation of the downlights. During the acceptance of the decoration, the customers themselves have no measurement experience and need to use scaffolding to climb up to measure. During this process, the decoration customers may fall from the scaffolding, causing unnecessary injuries. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a measuring device for construction engineering, which solves the problems raised in the above-mentioned background technology.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: a measuring device for construction engineering, including a measuring rod, a measuring disk fixedly connected to the top of the measuring rod, a plurality of first piston chambers are opened inside the measuring disk, the first piston chambers are slidably connected to the inner cavities of the first piston chambers, a measuring column is fixedly connected to one side of the first piston block, one end of the measuring column extends to the outside of the measuring disk, a piston cylinder is slidably connected to the outside of the measuring rod, a second piston block is slidably connected to the inside of the piston cylinder, an extension column is fixedly connected to one side of the second piston block, one end of the extension column extends to the outside of the piston cylinder, the top of the extension column is fixedly connected to a fixing seat, a marking pen is placed inside the fixing seat.

[0005] Optionally, one side of the measuring rod is slidably connected to a fixed plate, the top of the fixed plate is fixedly connected to a connecting arm, the top of the connecting arm is connected to the bottom of the piston cylinder, one side of the fixed plate and one side of the measuring rod are fixedly connected to a piston cylinder, the interior of the piston cylinder is slidably connected to a third piston block, the bottom of the third piston block is fixedly connected to a piston column, one end of the piston column extends to the bottom of the piston cylinder and is fixedly connected to a bottom plate, the top of the bottom plate is fixedly connected to a side plate, and the top of the side plate is fixedly connected to a handle.

[0006] Optionally, the bottom of the handle inner cavity is fixedly connected with a support spring, the top of the support spring is fixedly connected with a pressing block, the top of the pressing block extends to the top of the handle, the pressing block is fixedly connected with a connecting rope above one end of the handle inner cavity, the inside of the base plate is slidably connected with a clamping block, one end of the connecting rope extends to the inside of the base plate and is fixedly connected to one end of the clamping block, a connecting spring is sleeved inside the base plate and on the outside of the connecting rope, one end of the connecting spring is fixedly connected to one side of the base cavity, the other end of the connecting spring is connected to one end of the clamping block, a plurality of clamping grooves are provided on one side of the fixing plate and the measuring rod, and one end of the clamping block extends to the corresponding clamping groove.

[0007] Optionally, one side of the piston cylinder is fixedly connected to a scale, and one side of the side plate close to the scale is fixedly connected to a finger block.

[0008] Optionally, a first valve body is installed at one end of one piston cylinder, a second valve body is installed at the other end of the piston cylinder, a third valve body is installed at one end of another piston cylinder, a fourth valve body is installed at the other end of the piston cylinder, a second fixed tube is installed at one end of the first valve body, a first fixed tube is installed at one end of the second valve body, and one end of the first fixed tube and the second fixed tube both extend into the interior of the piston cylinder.

[0009] Optionally, a main pipe is installed inside the measuring disk and between several first piston chambers, and several branch pipes are installed at the end of the main pipe, one end of each branch pipe extends into the first piston chamber, a connecting pipe is installed inside the measuring disk and at one end of the first piston chamber, one end of each connecting pipe extends into the first piston chamber, one end of the main pipe extends into the measuring rod, an annular cavity is provided inside the measuring rod and on the outside of the main pipe, one end of each connecting pipe extends into the annular cavity, one end of the third valve body extends into the annular cavity, one end of the fourth valve body is connected to one end of the main pipe, and one end of the fourth valve body and the third valve body extend into the piston cylinder.

[0010] Optionally, a movable groove is provided inside the measuring rod, a ball screw is rotatably connected inside the movable groove, a movable block is threadedly connected to the outer side of the ball screw, one end of the movable block extends to the outer side of the measuring rod and is fixedly connected to one side of a fixed plate, a driving groove is provided inside the measuring rod and below the movable groove, the bottom end of the ball screw extends into the driving groove and is rotatably connected to the bottom of the inner cavity of the driving groove, a rotating rod is rotatably connected to one side of the measuring rod, one end of the rotating rod extends into the driving groove, and the rotating rod and the outer sides of the ball screw are fixedly sleeved with meshing bevel gears.

[0011] Optionally, a storage cavity is opened inside the measuring rod, and a telescopic rod is slidably connected inside the storage cavity. A second tightening screw is threadedly connected to one side of the measuring rod, and one end of the second tightening screw extends into the storage cavity. A first tightening screw is threadedly connected to one side of the fixing seat, and one end of the first tightening screw extends into the fixing seat.

[0012] The present invention provides a construction engineering measurement device, which has the following beneficial effects: 1. The measuring device for construction engineering is provided with a measuring column, a first piston block and a first piston chamber. The operator inserts the measuring disc into the downlight hole and then drives the oil in the first piston chamber to move, so that the first piston block pushes the measuring column to move. The measuring disc is centered by means of a plurality of measuring columns. When the measuring column contacts the inner wall of the downlight hole, the piston column cannot be pushed to move any further. By observing the scale pointed by the pointer block, the extended length of the measuring column is obtained, thereby obtaining the inner diameter of the downlight hole. If the inner diameter of the downlight hole meets the requirements, the operator can measure whether the inner diameter of the downlight hole meets the requirements by himself without the need for the customer to climb up during acceptance.

[0013] 2. The measuring device for construction engineering is provided with an extension column, a piston cylinder and a second piston block. If the inner diameter of the downlight hole is too small, the second piston block is driven to push the extension column to extend. By observing the scale on the ruler pointed by the finger block, the extension column is extended to the hole diameter position required for installing the downlight. Then the operator rotates the measuring rod to make the marking pen rotate around the outside of the downlight hole. The marking pen is used to draw a marking line on the ceiling so that the worker can scrape the downlight hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the internal structure of the present invention; Figure 2 It is a partial structural schematic diagram of the present invention; Figure 3 For the present invention Figure 1 A magnified image of point A; Figure 4 For the present invention Figure 1 A magnified view of point B; Figure 5 For the present invention Figure 2 Enlarged view of point C.

[0015] In the figure: 1, measuring rod; 2, measuring plate; 3, first piston chamber; 4, first piston block; 5, measuring column; 6, main pipe; 7, branch pipe; 8, connecting pipe; 9, piston cylinder; 10, extension column; 11, first fixed pipe; 12, second piston block; 13, second fixed pipe; 14, connecting arm; 15, fixing plate; 16, piston cylinder; 17, piston column; 18, third piston block; 19, grip; 20, support spring; 21, pressing block; 22, connecting rope; 23, side plate; 24 , bottom plate; 25, connecting spring; 26, clamping block; 27, clamping slot; 28, finger block; 29, scale; 30, first valve body; 31, second valve body; 32, annular cavity; 33, third valve body; 34, fourth valve body; 35, telescopic rod; 36, storage cavity; 37, moving groove; 38, ball screw; 39, driving groove; 40, rotating rod; 41, bevel gear; 42, moving block; 43, fixed seat; 44, first tightening screw; 45, marking pen; 46, second tightening screw. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0017] Embodiment 1 See also Figures 1 to 5 The present invention provides a technical solution: a measuring device for construction engineering, comprising a measuring rod 1, a measuring disk 2 is fixedly connected to the top of the measuring rod 1, a plurality of first piston chambers 3 are opened inside the measuring disk 2, the inner chambers of the first piston chambers 3 are slidably connected to first piston blocks 4, one side of the first piston blocks 4 is fixedly connected to measuring columns 5, one end of the measuring columns 5 extends to the outside of the measuring disk 2, a piston cylinder 9 is slidably connected to the outside of the measuring rod 1, a second piston block 12 is slidably connected to the inside of the piston cylinder 9, an extension column 10 is fixedly connected to one side of the second piston block 12, one end of the extension column 10 extends to the outside of the piston cylinder 9, a fixed seat 43 is fixedly connected to the top of the extension column 10, and a marking pen 45 is placed inside the fixed seat 43.

[0018] Among them, a fixed plate 15 is slidably connected to one side of the measuring rod 1, and a connecting arm 14 is fixedly connected to the top of the fixed plate 15. The top of the connecting arm 14 is connected to the bottom of the piston cylinder 9. A piston cylinder 16 is fixedly connected to one side of the fixed plate 15 and one side of the measuring rod 1. A third piston block 18 is slidably connected to the inside of the piston cylinder 16. The bottom of the third piston block 18 is fixedly connected to a piston column 17. One end of the piston column 17 extends to the bottom of the piston cylinder 16 and is fixedly connected to a bottom plate 24. The top of the bottom plate 24 is fixedly connected to a side plate 23. The top of the side plate 23 is fixedly connected to a handle 19. When the measuring instrument is not needed, the operator unlocks the block 26, and then the operator pulls the third piston block 18 downward by pressing the block 21, the handle 19 and the piston column 17, so that the oil in the inner cavity of the piston cylinder 9 and on the right side of the second piston block 12 enters through the second fixed pipe 13 The oil in the inner cavity of the piston cylinder 16 located above the third piston block 18 enters into the first valve body 30, and then enters into the inner cavity of the piston cylinder 16 located above the third piston block 18. At the same time, the oil in the inner cavity of the piston cylinder 16 located below the piston column 17 enters into the first fixed tube 11 through the second valve body 31, and then enters into the inner cavity of the piston cylinder 9 located on the left side of the second piston block 12 through the first fixed tube 11. The operator unlocks the piston column 17 on the measuring rod 1, and then resets and pushes the piston column 17 downward, so that the oil in the inner cavity of the piston cylinder 16 located below the third piston block 18 enters into the annular cavity 32 through the third valve body 33, and then enters into the first piston cavity 3 through the connecting pipe 8. The oil in the inner cavity of the first piston cavity 3 and located on the right side of the first piston block 4 enters into the main pipe 6 through the branch pipe 7, and then enters into the fourth valve body 34 through the main pipe 6, and enters into the inner cavity of the piston cylinder 16 located above the third piston block 18 through the fourth valve body 34.

[0019] Among them, the bottom of the inner cavity of the handle 19 is fixedly connected with a support spring 20, the top of the support spring 20 is fixedly connected with a pressing block 21, the top of the pressing block 21 extends to the top of the handle 19, and the pressing block 21 is fixedly connected with a connecting rope 22 above one end of the inner cavity of the handle 19, and a clamping block 26 is slidably connected inside the bottom plate 24, one end of the connecting rope 22 extends to the inside of the bottom plate 24 and is fixedly connected to one end of the clamping block 26, and a connecting spring 25 is sleeved inside the bottom plate 24 and on the outside of the connecting rope 22, one end of the connecting spring 25 is fixedly connected to one side of the inner cavity of the bottom plate 24, and the other end of the connecting spring 25 is connected to one end of the clamping block 26, and a plurality of clamping grooves 27 are provided on one side of the fixed plate 15 and the measuring rod 1, and one end of the clamping block 26 extends to the corresponding clamping groove 27, and the position of the piston column 17 and the third piston block 18 can be fixed by cooperating with the clamping groove 27 and the clamping block 26.

[0020] Among them, a scale 29 is fixedly connected to one side of the piston cylinder 16, and a finger block 28 is fixedly connected to one side of the side plate 23 close to the scale 29. By observing the scale on the scale 29 pointed by the finger block 28, the extension length of the extension column 10 can be adjusted, and the extension length of the measuring column 5 can be obtained to obtain the inner diameter of the downlight hole.

[0021] Among them, a first valve body 30 is installed at one end of a piston cylinder 16, a second valve body 31 is installed at the other end of the piston cylinder 16, a third valve body 33 is installed at one end of another piston cylinder 16, and a fourth valve body 34 is installed at the other end of the piston cylinder 16. A second fixed tube 13 is installed at one end of the first valve body 30, and a first fixed tube 11 is installed at one end of the second valve body 31. One ends of the first fixed tube 11 and the second fixed tube 13 both extend into the interior of the piston cylinder 9, and can drive the extension column 10 to retract and retract.

[0022] Among them, a main pipe 6 is installed inside the measuring disk 2 and between several first piston chambers 3, and several branch pipes 7 are installed at the end of the main pipe 6. One end of the branch pipe 7 extends to the inside of the first piston chamber 3, and a connecting pipe 8 is installed inside the measuring disk 2 and at one end of the first piston chamber 3. One end of the connecting pipe 8 extends to the inside of the first piston chamber 3. One end of the main pipe 6 extends to the inside of the measuring rod 1. An annular cavity 32 is opened inside the measuring rod 1 and on the outside of the main pipe 6. One end of the connecting pipe 8 extends to the inside of the annular cavity 32. One end of the third valve body 33 extends to the inside of the annular cavity 32. One end of the fourth valve body 34 is connected to one end of the main pipe 6. One end of the fourth valve body 34 and one end of the third valve body 33 extend to the inside of the piston cylinder 16, which can drive the measuring column 5 to extend and retract.

[0023] Among them, a moving groove 37 is opened inside the measuring rod 1, and a ball screw 38 is rotatably connected inside the moving groove 37. A moving block 42 is threadedly connected to the outer side of the ball screw 38. One end of the moving block 42 extends to the outer side of the measuring rod 1 and is fixedly connected to one side of the fixed plate 15. A driving groove 39 is opened inside the measuring rod 1 and below the moving groove 37. The bottom end of the ball screw 38 extends to the inside of the driving groove 39 and is rotatably connected to the bottom of the inner cavity of the driving groove 39. A rotating rod 40 is rotatably connected to one side of the measuring rod 1. One end of the rotating rod 40 extends to the inside of the driving groove 39. The outer sides of the rotating rod 40 and the ball screw 38 are fixedly sleeved with meshing bevel gears 41. When the measuring instrument is not needed, the operator resets and rotates the rotating rod 40, so that the rotating rod 40 drives the ball screw 38 through the bevel gear 41 to drive the moving block 42 and the fixed plate 15 to move downward.

[0024] Embodiment 2 See also Figure 1 and Figure 5The present invention provides a technical solution: a storage chamber 36 is provided inside the measuring rod 1, and a telescopic rod 35 is slidably connected inside the storage chamber 36; a second tightening screw 46 is threadedly connected to one side of the measuring rod 1, and one end of the second tightening screw 46 extends into the storage chamber 36; a first tightening screw 44 is threadedly connected to one side of the fixing seat 43, and one end of the first tightening screw 44 extends into the fixing seat 43; the telescopic rod 35 can be pulled out so that the telescopic rod 35 contacts the ground, and then the second tightening screw 46 is tightened to limit the position of the telescopic rod 35; then the telescopic rod 35 can be placed on the ground to support the measuring device; then when not in use, the second tightening screw 46 is loosened, and then the telescopic rod 35 is pushed into the storage chamber 36, and then the second tightening screw 46 is tightened to limit the position of the telescopic rod 35; when the marking pen 45 needs to be installed, the marking pen 45 is placed into the fixing seat 43, and then the first tightening screw 44 is tightened to limit the position of the marking pen 45.

[0025] In summary, when the measuring device for construction engineering is used, if it is necessary to measure the inner diameter of the downlight hole opened in the ceiling to see whether it matches the diameter of the purchased downlight, the top of the measuring disk 2 is inserted into the downlight hole, and then the operator presses the pressing block 21 on the measuring rod 1, so that the pressing block 21 drives the connecting rope 22 to move downward, so that the connecting rope 22 drives one end of the clamping block 26 to move out of the clamping groove 27, and then the operator holds the pressing block 21 and the handle 19 and moves them upward, so that the handle 19 drives the side plate 23 and the piston column 17 to move, so that the liquid located above the third piston block 18 enters into the main pipe 6 through the fourth valve body 34, and then enters into the branch pipe 7 through the main pipe 6, and then enters into the first piston chamber 3 through the branch pipe 7. The inner cavity of the first piston block 4 On the left side, the liquid on the right side of the first piston block 4 in the inner cavity of the first piston chamber 3 enters into the annular cavity 32 through the connecting pipe 8, and then enters into the piston cylinder 16 through the annular cavity 32 and the third valve body 33 and is located below the third piston block 18, so that the first piston block 4 pushes the measuring column 5 to move, and the measuring disk 2 is centered by a plurality of measuring columns 5. When the measuring column 5 contacts the inner wall of the downlight hole, the piston column 17 cannot be pushed to move further, and then the operator releases the pressing block 21. At this time, the supporting spring 20 pushes the pressing block 21 to move upward, and then the connecting spring 25 pushes one end of the card block 26 to be inserted into the card slot 27. By observing the scale 29 pointed to by the finger block 28, the extended length of the measuring column 5 is obtained, thereby obtaining the length of the downlight hole. If the inner diameter of the downlight hole meets the requirements, the measuring rod 1 is rotated so that the measuring rod 1 drives the measuring disk 2 and the measuring column 5 to rotate, so that the measuring column 5 rotates around the inner wall of the downlight hole. If it cannot rotate, it means that the inner wall of the downlight hole is uneven and needs to be repaired. If the inner diameter of the downlight hole is too small, the operator then presses the pressing block 21 on the fixing plate 15 so that the pressing block 21 drives the connecting rope 22 to move downward, so that the connecting rope 22 drives one end of the card block 26 to move out of the card slot 27, and then the operator holds the pressing block 21 and the handle 19 and moves them upward, so that the handle 19 drives the side plate 23 and the piston column 17 to move, so that the liquid above the third piston block 18 enters the second fixed tube 13 through the first valve body 30, and then enters the piston cylinder 9, and then the liquid on the left side of the second piston block 12 in the inner cavity of the piston cylinder 9 enters into the second valve body 31 through the first fixed tube 11, and then enters into the lower part of the third piston block 18 in the inner cavity of the piston cylinder 16 through the second valve body 31, so that the second piston block 12 pushes the extension column 10 to extend, and by observing the scale on the scale 29 pointed to by the finger block 28, the extension column 10 is extended to the aperture position required for installing the downlight, and then the operator releases the pressing block 21. At this time, the supporting spring 20 pushes the pressing block 21 to move up, and then the connecting spring 25 pushes one end of the card block 26 to be inserted into the card slot 27, and then the operator rotates the rotating rod 40, so that the rotating rod 40 drives the ball screw 38 to rotate through the bevel gear 41.The ball screw 38 drives the moving block 42 to move the fixed plate 15 and the piston cylinder 16 as well as the connecting arm 14 and the piston cylinder 9 upward, so that the marking pen 45 contacts the ceiling. Then the operator rotates the measuring rod 1, so that the marking pen 45 rotates around the outside of the downlight hole, and the marking pen 45 draws a mark line on the ceiling, so that the worker can scrape the downlight hole.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A measuring device for construction engineering, comprising a measuring rod (1), characterized in that: The top of the measuring rod (1) is fixedly connected to a measuring disk (2), the measuring disk (2) is provided with a plurality of first piston chambers (3), the inner chambers of the first piston chambers (3) are slidably connected to first piston blocks (4), one side of the first piston blocks (4) is fixedly connected to a measuring column (5), one end of each measuring column (5) extends to the outside of the measuring disk (2), the outer side of the measuring rod (1) is slidably connected to a piston cylinder (9), the interior of the piston cylinder (9) is slidably connected to a second piston block (12), one side of the second piston block (12) is fixedly connected to an extension column (10), one end of the extension column (10) extends to the outside of the piston cylinder (9), the top of the extension column (10) is fixedly connected to a fixing seat (43), and a marking pen (45) is placed inside the fixing seat (43).

2. A construction engineering measurement device according to claim 1, characterized in that: A fixing plate (15) is slidably connected to one side of the measuring rod (1), a connecting arm (14) is fixedly connected to the top of the fixing plate (15), the top of the connecting arm (14) is connected to the bottom of the piston cylinder (9), one side of the fixing plate (15) and one side of the measuring rod (1) are both fixedly connected to a piston cylinder (16), a third piston block (18) is slidably connected to the inside of the piston cylinder (16), the bottom of the third piston block (18) is fixedly connected to a piston column (17), one end of the piston column (17) extends to the bottom of the piston cylinder (16) and is fixedly connected to a bottom plate (24), the top of the bottom plate (24) is fixedly connected to a side plate (23), and the top of the side plate (23) is fixedly connected to a handle (19).

3. A construction engineering measurement device according to claim 2, characterized in that: The bottom of the inner cavity of the grip (19) is fixedly connected to a support spring (20), the top of the support spring (20) is fixedly connected to a pressing block (21), the top of the pressing block (21) extends to the top of the grip (19), the pressing block (21) is located above one end of the inner cavity of the grip (19) and is fixedly connected to a connecting rope (22), the inside of the bottom plate (24) is slidably connected to a clamping block (26), one end of the connecting rope (22) extends to the inside of the bottom plate (24) and is slidably connected to the clamping block (26). One end of the block (26) is fixedly connected, a connecting spring (25) is sleeved inside the base plate (24) and outside the connecting rope (22), one end of the connecting spring (25) is fixedly connected to one side of the inner cavity of the base plate (24), and the other end of the connecting spring (25) is connected to one end of the block (26), a plurality of slots (27) are formed on one side of the fixing plate (15) and the measuring rod (1), and one end of the block (26) extends into the corresponding slots (27).

4. A construction engineering measurement device according to claim 3, characterized in that: One side of the piston cylinder (16) is fixedly connected to a scale (29), and one side of the side plate (23) close to the scale (29) is fixedly connected to a finger block (28).

5. A construction engineering measurement device according to claim 4, characterized in that: A first valve body (30) is mounted on one end of one of the piston cylinders (16), a second valve body (31) is mounted on the other end of the piston cylinder (16), a third valve body (33) is mounted on one end of the other of the piston cylinders (16), a fourth valve body (34) is mounted on the other end of the piston cylinders (16), a second fixed tube (13) is mounted on one end of the first valve body (30), a first fixed tube (11) is mounted on one end of the second valve body (31), and one end of each of the first fixed tube (11) and the second fixed tube (13) extends into the interior of the piston cylinder (9).

6. A construction engineering measurement device according to claim 5, characterized in that: A main pipe (6) is installed inside the measuring disc (2) and between the plurality of first piston chambers (3). A plurality of branch pipes (7) are installed at the end of the main pipe (6). One end of each branch pipe (7) extends into the first piston chamber (3). A connecting pipe (8) is installed inside the measuring disc (2) and at one end of each first piston chamber (3). One end of each connecting pipe (8) extends into the first piston chamber (3). One end of the main pipe (6) extends into the measuring rod (1). An annular chamber (32) is provided inside the measuring rod (1) and outside the main pipe (6). One end of each connecting pipe (8) extends into the annular chamber (32). One end of the third valve body (33) extends into the annular chamber (32). One end of the fourth valve body (34) is connected to one end of the main pipe (6). One end of each of the fourth valve body (34) and the third valve body (33) extends into the piston cylinder (16).

7. A construction engineering measurement device according to claim 1, characterized in that: A moving groove (37) is provided inside the measuring rod (1), a ball screw (38) is rotatably connected inside the moving groove (37), a moving block (42) is threadedly connected to the outer side of the ball screw (38), one end of the moving block (42) extends to the outer side of the measuring rod (1) and is fixedly connected to one side of the fixing plate (15), a driving groove (39) is provided inside the measuring rod (1) and below the moving groove (37), the bottom end of the ball screw (38) extends into the driving groove (39) and is rotatably connected to the bottom of the inner cavity of the driving groove (39), a rotating rod (40) is rotatably connected to one side of the measuring rod (1), one end of the rotating rod (40) extends into the driving groove (39), and meshing bevel gears (41) are fixedly sleeved on the outer sides of the rotating rod (40) and the ball screw (38).

8. A construction engineering measurement device according to claim 1, characterized in that: A storage cavity (36) is provided inside the measuring rod (1), a telescopic rod (35) is slidably connected inside the storage cavity (36), a second tightening screw (46) is threadedly connected to one side of the measuring rod (1), one end of the second tightening screw (46) extends into the storage cavity (36), and a first tightening screw (44) is threadedly connected to one side of the fixing seat (43), one end of the first tightening screw (44) extends into the fixing seat (43).

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