CN213688308U - Engineering measuring device - Google Patents

Abstract

The utility model relates to an engineering measuring device. The engineering measurement device includes: the tower ruler is provided with scales; the first level bubble is arranged on the tower staff and used for detecting the vertical state of an object; the first distance measuring instrument is installed on the tower ruler and used for detecting the vertical distance of a measuring point. The utility model provides a sopwith staff among the engineering surveying device not only has the scale and measures, still has first air level and first distancer, has perfected the service function of sopwith staff. In addition, during actual measurement, double cooperation is not needed, remote information transmission in the double cooperation is not needed, measurement operation is simplified, and detection efficiency is improved. In addition, the vertical state of the object can be directly observed through the first level bubble arranged on the tower staff, the tower staff is convenient to control, and the measurement accuracy is improved.

Description

Engineering measuring device

Technical Field

The utility model relates to an engineering construction measures technical field, especially relates to engineering measuring device.

Background

In engineering project construction, construction measurement is taken as the most basic process, and engineering construction work can be smoothly carried out only on the premise of ensuring the measurement accuracy. Among the many measuring instruments, the leveling instrument is widely used, and a tower rod used together with the leveling instrument is a tool which is crucial in the measuring process. When the elevation of a certain place needs to be measured, a known point location elevation is usually used as a measurement starting point, one person uses the level gauge through the matching of the level gauge and the tower staff, the other person controls the tower staff at a certain distance, a plurality of measurement points with certain data relation with the measurement base point are extended until the measurement points are extended to a required position, and then the required elevation is obtained through series calculation.

However, this approach has the following drawbacks: 1. the measurement accuracy is not high. When the sliding staff is used, an operator cannot well control whether the sliding staff is in a vertical state, and the inclination of the sliding staff influences the accuracy of final data; 2. the construction efficiency is low. The dependence on the technical ability of technicians is high during measurement, and when the operator of the level finds that the tower staff is not vertical, the operator of the level needs to be remotely informed to adjust the state of the tower staff, so that the measurement is not facilitated to be carried out efficiently; 3. the function is single. The existing tower staff is only provided with scales and can only be used in combination with a level gauge or other measuring instruments, and only can play a role in short-distance rough measurement when being used alone.

SUMMERY OF THE UTILITY MODEL

On the basis, it is necessary to provide an engineering measurement device aiming at the technical problems of insufficient functions, inconvenient operation, error in precision and low construction efficiency in the prior art during measurement of a tower ruler.

An engineering surveying device comprising:

the tower ruler is provided with scales;

the first level bubble is mounted on the sliding staff and used for detecting the vertical state of an object;

the first distance measuring instrument is installed on the tower ruler and used for detecting the vertical distance of a measuring point.

In one embodiment, the engineering measurement device further comprises a second level bubble;

the first leveling bubble is fixedly arranged on a first side wall of the sliding staff, the second leveling bubble is fixedly arranged on a second side wall of the sliding staff, and the first side wall is adjacent to the second side wall;

the first level bubble extends along a first direction, the second level bubble extends along a second direction, and the first direction and the second direction are vertically arranged;

the second level bubble is used for detecting a horizontal state.

In one embodiment, the engineering measurement device further comprises a second range finder;

the first distance meter is arranged on the first side wall of the sliding staff, and the second distance meter is arranged on the second side wall of the sliding staff; the first distance meter is arranged along the first direction, and the second distance meter is arranged along the second direction;

the second distance meter is used for detecting the horizontal distance of the measuring point.

In one embodiment, the engineering measurement device further comprises a mount;

the mounting seat can be detachably connected to the tower ruler, and the first distance measuring instrument and the second distance measuring instrument are installed on the mounting seat.

In one embodiment, the mounting seat comprises a seat body and a locking member;

the base body is provided with a mounting hole which is sleeved on the tower ruler, and one end of the locking piece passes through the hole wall of the mounting hole and is detachably connected with the tower ruler;

the locking piece is unscrewed, and the base body can move along the axis direction of the tower ruler.

In one embodiment, a limiting table is arranged on one side of the seat body, which is far away from the sliding staff, and the first distance measuring instrument and the second distance measuring instrument are installed between the limiting table and the sliding staff.

In one embodiment, the mounting seat further comprises a wear pad disposed between the hole wall of the mounting hole and the side wall of the sliding staff.

In one embodiment, the sliding staff comprises a plurality of staff rods, and the diameter of the staff rods is sleeved from small to large in sequence; any two adjacent ruler rods can slide relatively along the axial direction of the sliding staff.

In one embodiment, each of the rods has the first and second level bubble fixed thereto.

In one embodiment, at least one of the measuring sticks is a tight fit with the mounting base.

In one embodiment, the central axis of the first vial and the central axis of the second vial are both disposed parallel to the axis of the tower.

The utility model has the advantages that:

the utility model provides a pair of engineering measuring device, including sopwith staff, air level and distancer. Wherein, be provided with the scale on the sopwith staff, the scale is used for the operator to observe the measurement height. Wherein, install first air level on the sopwith staff, detect the vertical state of article through first air level. Wherein, still install first distancer on the sopwith staff, detect the vertical distance of measuring point through first distancer. Compare and need two operator cooperations to measure in prior art, the utility model provides an engineering surveying device with first air level and first distancer direct mount on the sopwith staff. When the measurement is carried out, only one user needs to control the tower ruler to carry out measurement, and the vertical state of the object and the vertical distance of the measurement point needing to be measured on the object can be obtained. That is to say, the sopwith staff among this engineering measuring device not only has the scale and measures, still has first air level and first distancer, has perfected the service function of sopwith staff. In addition, during actual measurement, double cooperation is not needed, remote information transmission in the double cooperation is not needed, measurement operation is simplified, and detection efficiency is improved. In addition, the vertical state of the object can be directly observed through the first level bubble arranged on the tower staff, the tower staff is convenient to control, and the measurement accuracy is improved.

Drawings

Fig. 1 is a schematic view of an engineering measurement apparatus provided in an embodiment of the present invention;

fig. 2 is a first partial schematic view of an engineering measurement apparatus according to an embodiment of the present invention;

fig. 3 is a second partial schematic view of an engineering measurement apparatus according to an embodiment of the present invention.

Icon: 10-a box staff; 11-a ruler rod; 21-a first level bubble; 22-a second level bubble; 31-a first rangefinder; 32-a second rangefinder; 40-a mounting seat; 41-seat body; 42-a locking member; 411-first limit stop.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 3, fig. 1 is a schematic diagram illustrating an engineering surveying device according to an embodiment of the present invention; fig. 2 is a first partial schematic view of an engineering surveying device according to an embodiment of the present invention; fig. 3 shows a second partial schematic view of an engineering measurement device according to an embodiment of the present invention. An embodiment of the utility model provides an engineering measuring device includes sopwith staff 10, first air level 21 and first distancer 31. Wherein, be provided with the scale on the sopwith staff 10, the scale sets up along the axis direction of sopwith staff 10 to be convenient for the operator to observe the measurement height when measuring. Wherein, install first air level 21 on the sopwith staff 10, can detect the vertical state of article through first air level 21, and then be convenient for to the vertical state control of sopwith staff 10. Wherein, a first distance meter 31 is further installed on the sliding staff 10, and the vertical distance of the measuring point is detected by the first distance meter 31 to facilitate the confirmation of the measuring point.

Specifically, a first insertion groove for attaching the first level bubble 21 is provided in the leveling rod 10, and the first level bubble 21 can be inserted into the first insertion groove. The first level bubble 21 is disposed in a direction perpendicular to the ground, thereby facilitating observation of the vertical state of the object to be measured and the vertical state of the leveling rod 10. Simultaneously, the setting of first distancer 31, the perpendicular distance of first distancer 31 position and near reference point can be measured, and then the relative position of confirming the measuring point to carry out the analysis use to data in the later stage.

Compared with the prior art that two operators are required to cooperate with each other when measuring, the engineering surveying device provided by the embodiment directly mounts the first level bubble 21 and the first distance meter 31 on the tower 10, and when the tower 10 is moved, the first level bubble 21 and the first distance meter 31 can move synchronously along with the tower 10. During the movement, the state of the first level bubble 21 is observed to adjust the vertical state of the control tower 10, so as to detect the vertical state of the measured workpiece, and meanwhile, the first distance meter 31 can measure the vertical distance between the position and the nearby reference point in real time. Moreover, when the sliding staff 10 moves, only one user is required to control the sliding staff 10 to move so as to obtain the vertical state of the object and the vertical distance of the measuring point to be measured on the object. That is to say, the sliding staff 10 in the engineering surveying device not only has the graduation measurement to facilitate the user to observe the height of the measured object, but also has the first level bubble 21 and the first distance meter 31, thereby perfecting the use function of the sliding staff 10, and obtaining the vertical state and the vertical distance while measuring the height. In addition, during actual measurement, cooperation of multiple persons is not needed, and multiple persons are not needed to transmit information remotely, so that measurement operation is simplified, and detection efficiency is improved. In addition, the first leveling bubble 21 mounted on the sliding staff 10 can directly obtain the vertical state of the sliding staff 10 when detecting the vertical state of the object to be measured, thereby facilitating the control of the sliding staff 10 and improving the measurement accuracy.

The first leveling bubble 21 may be installed on the sliding staff 10 relative to the sliding staff 10 by providing a first embedding groove, the first embedding groove is recessed along the axial direction of the sliding staff 10, and the first leveling bubble 21 is embedded in the first embedding groove. Or, a first embedding hole is arranged on the sliding staff 10, and the first level bubble 21 is embedded in the first embedding hole. Or the first mounting plate can be fixed on the sliding staff 10 to fix the first level bubble 21 on the first mounting plate, so that the first level bubble 21 can be fixed relative to the sliding staff 10. It is sufficient if the first leveling bubble 21 can be fixed to the leveling rod 10 to perform measurement.

The first distance meter 31 may be mounted on the tower 10 by providing a mounting seat 40 on the tower 10, and the first distance meter 31 may be mounted on the mounting seat 40.

Next, with respect to the above-described mount 40, a detailed description is made below.

Referring to fig. 1-3, in some embodiments, the engineering surveying device further includes a mounting base 40, the mounting base 40 is detachably connected to the tower ruler 10, and the first distance meter 31 is mounted on the mounting base 40. That is, the mount 40 can be fixed with respect to the tower 10, and the mount 40 can be detached from the tower 10. When the vertical distance needs to be measured to obtain the position of the measurement point, the mounting seat 40 is fixed relative to the sliding staff 10, and the first distance meter 31 is fixed on the mounting seat 40. At this time, the first distance meter 31 is disposed in a vertical state so as to measure a vertical distance. When the measurement is completed or when the measurement is not needed, the mounting base 40 is detached from the tower 10, and the first distance meter 31 is detached from the tower 10.

Referring to fig. 1-3, further, the mounting base 40 includes a base 41 and a locking member 42; the base body 41 is provided with a mounting hole for being sleeved on the sliding staff 10, and one end of the locking piece 42 passes through the hole wall of the mounting hole and is detachably connected to the sliding staff 10; the locking member 42 is unscrewed, and the seat body 41 can move in the axial direction of the scale 10.

In the present embodiment, the mounting hole penetrates in the thickness direction of the seat body 41, and the axis of the mounting hole is parallel to the axis of the tower 10. After the base 41 is sleeved on the tower ruler 10 through the mounting hole, the axis of the mounting hole coincides with the axis of the tower ruler 10. The side wall of the seat body 41 is provided with a threaded hole extending along the radial direction of the mounting hole, and the threaded hole penetrates through the hole wall of the mounting hole along the radial direction of the mounting hole. The side wall of the retaining member 42 is provided with external threads that are in threaded engagement with the threaded holes. In use, the retaining member 42 is threaded through the threaded aperture and threadedly attached to the tape measure 10. When it is desired to fix the first distance meter 31 relative to the sliding staff 10, the locking member 42 is tightened to fasten to the sliding staff 10; when the tool needs to be removed, the locking member 42 is unscrewed to withdraw from the sliding staff 10, and then the seat body 41 is moved along the axial direction of the sliding staff 10, so that the seat body 41 is removed from the sliding staff 10.

Referring to fig. 1-3, in some embodiments, a position-limiting platform is disposed on a side of the base 41 away from the sliding staff 10, and the first distance meter 31 is installed between the position-limiting platform and the sliding staff 10. That is, the first position-limiting table 411 is included in the position-limiting table, and the first position-limiting table 411 extends toward a side close to the first distance meter 31 along the axial direction of the sliding staff 10, that is, the first position-limiting table 411 is protruded on the base 41. First spacing 411's setting provides first mounting groove for the installation of the relative pedestal 41 of first distancer 31 to in hold the position that first distancer 31 leaned on in first mounting groove, first spacing 411 carries on spacingly to the one side that first distancer 31 kept away from relative sopwith staff 10 simultaneously, reduces the risk that the relative pedestal 41 of first distancer 31 dropped.

The number of the limiting tables can be one, and the length of one limiting table extends along the length direction of the side surface of the first distance meter 31 contacting with the base 41. Or, the number of the limiting tables is multiple, and the limiting tables are uniformly distributed at intervals along the direction, for example, the number of the limiting tables is two, three, and the like. It is sufficient if a reliable mounting of the first distance meter 31 can be achieved.

With continuing reference to fig. 1-3, in fact, in the engineering survey, in addition to the vertical state and the vertical distance, the horizontal state and the horizontal distance are also required to be detected, so that the more accurate measurement point can be determined. To this end, an embodiment of the present invention provides an engineering measurement apparatus further including a second level bubble 22, wherein the first level bubble 21 is fixed on the first side wall of the tower 10, the second level bubble 22 is fixed on the second side wall of the tower 10, and the first side wall is adjacent to the second side wall; the first vials 21 extend in a first direction and the second vials 22 extend in a second direction, the first and second directions being arranged perpendicularly.

In the present embodiment, the cross section of the slide rule 10 is a quadrangle. The second side wall of the sliding staff 10 is the side away from the measured object, and the first side wall of the sliding staff 10 is the side adjacent to the second side wall. The first level cells 21 are used to detect a vertical state and the second level cells 22 are used to detect a horizontal state. That is, the first direction is a vertical direction and the second direction is a horizontal direction. Through the cooperation use of first air level 21 and second air level 22, can also realize the level and detect when realizing vertical detection, further perfect the service function of sopwith staff 10, improve and detect accuracy and measurement of efficiency.

The second level bubble 22 may be mounted on the sliding staff 10 by providing a second embedding groove on the sliding staff 10, the second embedding groove being recessed along the axis of the sliding staff 10, and the second level bubble 22 being embedded in the second embedding groove. Alternatively, a second embedding hole is provided in the leveling rod 10, and the second level bubble 22 is embedded in the second embedding hole. Or a second mounting plate can be fixed on the sliding staff 10 to fix the second level bubble 22 on the second mounting plate, so that the second level bubble 22 can be fixed relative to the sliding staff 10. It is sufficient that the second leveling bubble 22 can be fixed to the leveling rod 10 to perform measurement.

When the first vial 21 and the second vial 22 are mounted, the central axis of the first vial 21 in the vertical direction and the central axis of the second vial 22 in the vertical direction are both parallel to the axis of the tower 10. When the first level bubble 21 is installed relative to the sliding staff 10, the first level bubble 21 is located at the center of the first side wall of the sliding staff 10; when the second vial 22 is mounted with respect to the tower 10, the second vial 22 is centered on the second sidewall of the tower 10.

With continued reference to fig. 1-3, in some embodiments, the engineering measurement device further includes a second distance meter 32; the first distance meter 31 is arranged on the first side wall of the sliding staff 10, and the second distance meter 32 is arranged on the second side wall of the sliding staff 10; the first distance meter 31 is arranged along a first direction, and the second distance meter 32 is arranged along a second direction; the second distance meter 32 is used to detect the horizontal distance of the measuring point.

Specifically, the second distance meter 32 is also mounted on the mounting base 40, and the second distance meter 32 is used for detecting the horizontal distance of the measuring point, that is, measuring the horizontal distance between the position of the second distance meter 32 and the nearby reference point, and further determining the relative position of the measuring point, so as to analyze and use the data in the later period. By using the second distance meter 32 and the first distance meter 31 in cooperation, the horizontal distance and the vertical distance of the measuring point can be obtained, and the determination of the measuring point can be more accurate.

During actual use, spacing platform still includes the spacing platform of second, and first spacing platform 411 is located the homonymy that first distancer 31 installed relative sopwith staff 10, and the spacing platform of second is located the homonymy that second distancer 32 installed relative sopwith staff 10. The arrangement mode of the second limit table is the same as the arrangement direction of the first limit table 411. That is to say, pedestal 41 is located to the protruding pedestal that locates of second spacing platform, provides the second mounting groove for the installation of the relative pedestal 41 of second distancer 32 to the position that second distancer 32 leaned on holds in the second mounting groove, and the spacing platform of second carries on spacingly to the one side that second distancer 32 kept away from relative sliding staff 10 simultaneously, reduces the risk that the relative pedestal 41 of second distancer 32 dropped.

In some embodiments, the mount 40 further includes a wear pad disposed between the wall of the mounting hole and the side wall of the tower 10. That is, after the seat 41 is sleeved with respect to the sliding staff 10, the wear pad is located between the hole wall of the mounting hole and the side wall of the sliding staff 10, so as to reduce the wear between the seat 41 and the sliding staff 10. Wherein, the wear pad can adopt the rubber pad. At this time, the wear pad is also provided with a through hole for the locking member 42 to pass through, so that the locking member 42 passes through one end of the seat body 41 to be connected to the scale 10.

With reference to fig. 1-3, in practical use, the sliding staff 10 has a plurality of staff rods 11 sleeved in sequence, and the diameters of the staff rods 11 are arranged from inside to outside in sequence from small to large; any two adjacent ruler rods 11 can slide relatively along the axial direction of the sliding staff 10.

Further, each of the rods 11 is fixedly provided with a first level bubble 21 and a second level bubble 22.

Specifically, each of the rods 11 has a first side wall and a second side wall, the first level bubble 21 is fixed on the first side wall, and the second level bubble 22 is fixed on the second side wall. When the tape shaft 11 having the smallest diameter among the plurality of tape shafts 11 is extended in the axial direction of the stepped ruler 10, the length of the stepped ruler 10 can be extended to be adapted to different measurement heights. In this case, the horizontal state and the vertical state of each scale rod 11, and further the horizontal state and the vertical state of the entire scale 10 can be determined by using the plurality of first level cells 21 and the plurality of second level cells 22 in combination.

In actual use, at least one of the tape measure rods 11 is a tight fit with the mounting block 40. That is, at least one of the measuring rods 11 has an outer diameter corresponding to the diameter of the mounting hole of the base body 41, so that when the base body 41 moves along the axial direction of the tower 10 relative to the measuring rods 11, the base body 41 can be tightly fitted with one of the measuring rods 11, so that the base body 41 can not move along the axial direction of the tower 10 any more, and the base body 41 is fixed relative to the measuring rod 11 by the locking member 42.

Or, a wear pad is additionally arranged between the hole wall of the mounting hole and the outer side wall of the ruler rod 11, so that the base body 41 does not move relative to the ruler rod 11 along the axial direction of the sliding staff 10 any more, and the mounting base 40 is fixed relative to the sliding staff 10.

The utility model provides an engineering measuring device need use with the spirit level cooperation when in-service use, for example following step:

place the sopwith staff 10 in the position of known elevation, observe the relative position that first air level 21 and second air level 22 correspond respectively on the sopwith staff 10, the state of adjustment sopwith staff 10 makes first air level 21 and second air level 22 all be located the intermediate position, and the spirit level is placed outside the certain distance, observes the position of the eyepiece scale mark on the spirit level on the sopwith staff 10 to the record. And then keeping the level instrument still, moving the sliding staff 10 to a target measuring point, observing and recording the position of the scale mark of the level instrument on the sliding staff 10, and calculating to obtain the elevation of the target measuring point.

The method comprises the steps of placing the sliding staff 10 at a position with a known elevation, observing the corresponding relative positions of the first level bubble 21 and the second level bubble 22 on the sliding staff 10, and adjusting the state of the sliding staff 10 to enable the first level bubble 21 and the second level bubble 22 to be located at the middle position. The base body 41 is moved to a desired position, then the locking member 42 is screwed, the second distance meter 32 for horizontal measurement is used for measurement and data recording, the first distance meter 31 for vertical measurement is used for measurement and data recording, and the relative position of the measurement point can be determined by forming a coordinate by the two measured data.

The sliding staff 10 is placed on a horizontal or vertical object, and whether the object is horizontal or vertical is checked by observing the positions of the first level bubble 21 and the second level bubble 22, and corresponding adjustment is made according to requirements.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. An engineering measurement device, comprising:

the tower ruler (10), the tower ruler (10) is provided with scales;

a first level bubble (21) attached to the level (10) for detecting a vertical state;

a first distance meter (31) mounted to the tower ruler (10) for detecting a vertical distance of a measurement point.

2. The engineering measuring device of claim 1, further comprising a second level vial (22);

the first leveling bubble (21) is fixedly arranged on a first side wall of the sliding staff (10), the second leveling bubble (22) is fixedly arranged on a second side wall of the sliding staff (10), and the first side wall is adjacent to the second side wall;

the first level bubble (21) extends along a first direction, the second level bubble (22) extends along a second direction, and the first direction and the second direction are vertically arranged;

the second level bubble (22) is used for detecting a horizontal state.

3. The engineering measurement device of claim 2, further comprising a second distance meter (32);

the first distance meter (31) is arranged on a first side wall of the sliding staff (10), and the second distance meter (32) is arranged on a second side wall of the sliding staff (10); the first distance meter (31) is arranged along the first direction, and the second distance meter (32) is arranged along the second direction;

the second distance meter (32) is used for detecting the horizontal distance of the measuring point.

4. The engineering measuring device of claim 3, further comprising a mount (40);

the mounting seat (40) is detachably connected to the tower ruler (10), and the first distance meter (31) and the second distance meter (32) are mounted on the mounting seat (40).

5. Engineering measuring device according to claim 4, characterized in that the mounting seat (40) comprises a seat body (41) and a locking member (42);

the base body (41) is provided with a mounting hole which is used for being sleeved on the sliding staff (10), and one end of the locking piece (42) penetrates through the hole wall of the mounting hole and is detachably connected to the sliding staff (10);

the locking piece (42) is unscrewed, and the seat body (41) can move along the axis direction of the sliding staff (10).

6. Engineering measuring device according to claim 5, characterized in that a limiting table is arranged on the seat (41) on the side facing away from the sliding staff (10), and the first distance meter (31) and the second distance meter (32) are mounted between the limiting table and the sliding staff (10).

7. The engineering measuring device of claim 5, wherein the mount (40) further comprises a wear pad disposed between a wall of the mounting hole and a side wall of the sliding staff (10).

8. The engineering measuring device according to any one of claims 4 to 7, wherein the sliding staff (10) comprises a plurality of staff rods (11) which are sleeved in sequence, and the diameters of the staff rods (11) are arranged from inside to outside in sequence from small to large; any two adjacent ruler rods (11) can slide relatively along the axial direction of the sliding staff (10).

9. Engineering measuring device according to claim 8, characterized in that each of said rods (11) is fixed with said first level bubble (21) and said second level bubble (22).

10. Engineering measuring device according to claim 8, characterized in that at least one of the measuring sticks (11) is a tight fit with the mounting seat (40).

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