Civil engineering bridge settlement surveying device

Abstract

The utility model relates to the field of civil engineering bridge settlement survey, and discloses a civil engineering bridge settlement survey device, which comprises a precision level gauge and a protective cover axially and rotatably covering outside lenses on two sides of a telescope of the precision level gauge, and a cleaning block with lens cleaning and cushioning functions is mounted on the protective cover. When the bridge settlement surveying device is used, the lens of the level gauge can be protected and cleaned, the definition of the lens of the level gauge in the surveying process is kept, and the surveying data reading accuracy is improved.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering bridge settlement survey, in particular to a civil engineering bridge settlement survey device. Background Art

[0002] After a civil engineering bridge is constructed and put into use, it is necessary to regularly survey the settlement of the bridge and analyze the settlement value in order to predict the safety of the bridge and improve the safety of bridge use. Common bridge settlement survey devices include precision levels. The level is set up on a tripod to survey the bridge on site. However, when the precision level is in use, the lens surface is affected by the dust in the construction environment. During the detection process, dust covers the lens surface, making it difficult to accurately read the survey data.

[0003] Thus, a survey device for highway bridge construction with patent application number CN216243319U includes a level, a tripod is provided at the bottom of the level, a supporting leg is provided at the bottom of the tripod, an objective lens is provided at the end of the level, a surface cover of the objective lens is provided with a dust cover, connecting grooves are symmetrically provided at the ends of the level relative to the two sides of the objective lens, connecting blocks are symmetrically fixed at the ends of the dust cover, the connecting blocks are snap-connected with the connecting grooves, a connecting rope is connected between the dust cover and the level, a limiting groove is provided at the top of one of the connecting blocks, and a built-in groove is provided inside one of the connecting grooves; the utility model uses a designed dust cover so that when the level needs to be idle, the dust cover can be limited by the designed connecting grooves, connecting blocks, limiting grooves and limiting blocks, so that the dust cover can be limited to cover the surface of the objective lens for dustproof treatment.

[0004] However, the protective structure outside the survey level lens needs to be opened when in use. When the surface of the level lens is covered with environmental dust during measurement, the staff still needs to clean it. After opening, the position of the protective structure on the level cannot be limited. The shaking or movement of the protective structure will affect the survey of the lens. At the same time, the level generally uses a tripod to adjust the survey height. However, when measuring different points, it is necessary to readjust the height of the tripod, the flatness of the ground, and the measurement level of the level, and the adjustment process consumes a lot of time. Utility Model Content

[0005] In view of the above problems, a civil engineering bridge settlement survey device is provided, which solves the problem of level instrument lens protection and cleaning by rotating the protective structure.

[0006] In order to solve the problems of the prior art, the utility model provides a civil engineering bridge settlement survey device, including a precision level. The settlement survey device also includes an axially rotating cover arranged outside the lenses on both sides of the precision level telescope, and a cleaning block for lens cleaning and shock absorption is installed on the protective cover. The precision level is equipped with a dust cover with a limited position protection cleaning block.

[0007] Preferably, a resetting telescopic member for limiting the horizontal movement position of the protective cover is installed on the precision level, and a direction control block is rotatably installed on the telescopic end of the resetting telescopic member, and the direction control block is rotatably assembled with the protective cover.

[0008] Preferably, the axis of the resetting telescopic member is arranged in the middle position of two groups of axes of the dust cover and the precision level telescope lens.

[0009] Preferably, the protective cover is rotated upward so that the cleaning block is engaged and confined in the dust cover, and the protective cover is rotated downward so that the cleaning block is engaged and confined in the precision level telescope lens.

[0010] Preferably, the precision level is equipped with a lifting chassis for adjusting the height of the level.

[0011] Preferably, a screw rod is rotatably installed in the lifting chassis, the external thread of the screw rod is equipped with a guide slide, the lower surface of the guide slide is slidably fitted with the inner surface of the lifting chassis, a support frame is rotatably installed on the guide slide, a supporting frame is rotatably installed on the support frame, and the supporting frame is fixedly installed at the bottom of the precision level.

[0012] Preferably, two sets of reverse thread structures are arranged outside the screw rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. Two sets of protective structures are respectively arranged at both ends of the precision level lens in the utility model. The protective structures are composed of a protective cover and a cleaning block. The protective cover is arranged on the outside of the level lens. The cleaning block on the protective cover is attached to the outside of the lens. The cleaning block has a large thickness and high flexibility, which can play a certain buffering and protective role. The protective cover and the cleaning block are rotated so that the cleaning block rotates correspondingly to the side of the lens, which can clean the dust on the surface of the lens, so as to clean the dust during the lens survey.

[0015] 2. In the utility model, the protective cover and the cleaning block protected at the front end of the precision level can be rotated upward and moved to engage in the dust cover under the rotation and horizontal guiding movement of the reset assembly. The engaging structure can limit the opening position of the lens protective structure and protect the outside of the cleaning block to avoid the cleaning block being affected by environmental dust and unable to clean the lens of the level when the protective structure is separated from the level lens for use, thereby maintaining the cleaning function of the cleaning block.

[0016] 3. The utility model is provided with a precision level setting height control structure. After the precision level is set up and adjusted by the tripod, if it is necessary to measure data at different points of the civil engineering bridge, the corresponding heights of the tripod and the precision level need to be readjusted. At this time, the height of the precision level can be adjusted by the lifting chassis under the precision level, and the support frame is controlled to rotate and unfold by the screw guide transmission structure. The two groups of support frames rotate to push the precision level upward, so that the survey height can be adjusted without adjusting the tripod and the precision level, thereby shortening the survey time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the three-dimensional structure of a precision level instrument used in civil engineering bridge settlement surveying equipment.

[0018] Figure 2 The present invention is a schematic diagram of the three-dimensional structure of a dust cover of a civil engineering bridge settlement survey device.

[0019] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of a control block of a civil engineering bridge settlement survey device.

[0020] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of a cleaning block of a civil engineering bridge settlement survey device.

[0021] Figure 5 The present invention is a schematic diagram of the cross-sectional structure of a resetting telescopic member of a civil engineering bridge settlement survey device.

[0022] Figure 6 The present invention is a schematic diagram of the unfolded structure of a precision level instrument used in civil engineering bridge settlement surveying equipment.

[0023] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of a precision lifting chassis of a civil engineering bridge settlement survey device.

[0024] Figure 8 The present invention is a schematic diagram of the three-dimensional structure of a support frame of a civil engineering bridge settlement survey device.

[0025] The numbers in the figure are:

[0026] 1-Precision level;

[0027] 2-protective cover, 21-cleaning block, 22-reset telescopic member, 23-direction control block;

[0028] 3- Dust cover;

[0029] 4-lifting chassis, 41-screw rod, 42-guide slide, 43-support frame, 44-support frame. DETAILED DESCRIPTION

[0030] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figure 1-Figure 8 As shown, a civil engineering bridge settlement survey device includes a precision level 1, and the settlement survey device also includes an axially rotating cover and a protective cover 2 outside the lenses on both sides of the telescope of the precision level 1. A cleaning block 21 for lens cleaning and shock absorption is installed on the protective cover 2. A dust cover 3 with limited position protection of the cleaning block 21 is installed on the precision level 1. The cleaning block 21 is made of a material with high flexibility, such as a cotton block and other materials. The thickness of the cleaning block 21 is relatively large. When it is engaged and protected in front of the lens of the precision level 1, it can play a buffering and protective role. The cross-sectional shape and size of the cleaning block 21 are the same as the area size of the lens of the precision level 1.

[0032] When the precision level 1 is not used for surveying, the protective cover 2 is controlled to rotate to correspond to the outside of the two groups of lenses of the precision level 1. At this time, the cleaning block 21 assembled on the protective cover 2 is pressed in front of the lens. The cleaning block 21 can serve as a buffer protection component to improve the protection effect of the protective cover 2 on the lens.

[0033] When the precision level 1 is used for surveying, the protective cover 2 is controlled to rotate and open. The protective cover 2 rotates upward with the assistance of the resetting telescopic part 22 so that the cleaning block 21 is engaged with the inside of the dust cover 3. The dust cover 3 is arranged on the outside of the cleaning block 21 to prevent environmental dust from covering the surface of the cleaning block 21, keeping the surface of the cleaning block 21 clean to facilitate the subsequent cleaning of the surface of the level lens.

[0034] The precision level 1 is provided with a resetting telescopic member 22 for limiting the horizontal movement position of the protective cover 2. A control block 23 is rotatably installed on the telescopic end of the resetting telescopic member 22. The control block 23 is rotatably assembled with the protective cover 2. The resetting telescopic member 22 is composed of a telescopic rod and a spring. The spring is connected to the outside of the movable telescopic rod and guides the protective cover 2 to move horizontally under the action of the spring tension.

[0035] When the control block 23 is rotated up and down, the horizontal movement of the control block 23 is controlled by resetting the telescopic part 22 to adjust the distance between the control block 23 and the lens of the precision level 1, and the distance between the control block 23 and the dust cover 3. Under the action of elastic tension, the control block 23 pushes the protective cover 2 to engage with the side of the lens of the precision level 1 or the side of the dust cover 3. The moving position of the protective cover 2 is limited by the engaging structure to maintain its stability after position adjustment.

[0036] The axis of the resetting telescopic member 22 is arranged in the middle position of the two axis groups of the dust cover 3 and the telescope lens of the precision level 1.

[0037] The control block 23 is rotatably assembled with the resetting telescopic member 22 to control the control block 23 to rotate up and down to switch the corresponding positions of the protective cover 2 and the cleaning block 21. After the angle of the control block 23 is rotated, the protective cover 2 and the cleaning block 21 can be moved and adjusted in the horizontal direction under the elastic pulling force of the resetting telescopic member 22.

[0038] The protective cover 2 rotates upward so that the cleaning block 21 is engaged and confined in the dust cover 3, and the protective cover 2 rotates downward so that the cleaning block 21 is engaged and confined in the telescope lens of the precision level 1.

[0039] The protective cover 2 is rotated to adjust the cleaning block 21 to engage with the dust cover 3 or the lens of the precision level 1. When the cleaning block 21 is controlled to engage inside the dust cover 3, dust in the building environment can be prevented from covering the surface of the cleaning block 21. When the cleaning block 21 is engaged in the lens of the precision level 1, it can play a buffering and protective role when the surveying device is not used. When the surveying device is used, the protective cover 2 and the cleaning block 21 are rotated to make the cleaning block 21 fit in front of the lens of the precision level 1 and rotate, thereby cleaning the dust covering the surface of the precision level 1 when it is in use, maintaining the clarity of the precision level 1 during use, and thus ensuring the accuracy of the survey data reading.

[0040] The precision level 1 is provided with a lifting chassis 4 for adjusting the height of the level. The lifting structure in the lifting chassis 4 may be in various forms, such as cylinder adjustment, gear adjustment, and height adjustment by multiple mechanical transmission structures.

[0041] When the precision level 1 is set up for use, the tripod is first supported on the ground. According to the flatness of the building ground, the horizontality of the tripod needs to be adjusted, and the height of the tripod is adjusted according to the needs of the bridge survey. Then the precision level 1 is installed on the tripod, and the precision level 1 is adjusted to realize the survey of the bridge settlement value. The adjustment process is time-consuming. When it is necessary to survey different positions of the bridge, the survey height of the precision level 1 can be directly adjusted by lifting the chassis 4. There is no need to adjust the position and height of the tripod, thereby reducing the time for bridge settlement survey.

[0042] A screw rod 41 is rotatably installed in the lifting chassis 4, and a guide slide 42 is assembled on the external thread of the screw rod 41. The lower surface of the guide slide 42 is slidably fitted with the inner surface of the lifting chassis 4. A support frame 43 is rotatably installed on the guide slide 42, and a supporting frame 44 is rotatably installed on the supporting frame 43. The supporting frame 44 is fixedly installed at the bottom of the precision level 1.

[0043] The screw rod 41 is controlled to rotate. Under the action of the threaded transmission, the guide slide 42 threadedly sleeved on the outside of the screw rod 41 slides on the inner bottom surface of the lifting chassis 4. At this time, the two ends of the support frame 43 connected between the guide slide 42 and the supporting frame 44 are rotated and unfolded. The rotated and unfolded support frame 43 can push the precision level 1 to move upward, thereby adjusting the use height of the precision level 1.

[0044] The screw rod 41 is provided with two sets of reverse thread structures on its exterior.

[0045] The two sets of reverse thread structures can make the two sets of guide slides 42 outside the screw rod 41 move relative to each other, so that the two sets of support frames 43 connected under the precision level 1 can rotate and unfold synchronously. The two sets of support structures have better supporting stability and can quickly and stably adjust the lifting and lowering movement of the precision level 1.

[0046] The above embodiments only express one or several implementation methods of the present invention, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the attached claims.

Claims

1. A civil engineering bridge settlement survey device, comprising a precision level (1), characterized in that: The settlement survey device also includes a protective cover (2) with an axially rotating cover arranged outside the lenses on both sides of the telescope of the precision level (1), a cleaning block (21) for cleaning the lenses and buffering the vibration is installed on the protective cover (2), and a dust cover (3) with a limited position protective cleaning block (21) is installed on the precision level (1).

2. A civil engineering bridge settlement survey device according to claim 1, characterized in that: The precision level (1) is provided with a resetting telescopic member (22) for limiting the horizontal movement position of the protective cover (2); a direction control block (23) is rotatably mounted on the telescopic end of the resetting telescopic member (22); and the direction control block (23) is rotatably assembled with the protective cover (2).

3. A civil engineering bridge settlement survey device according to claim 2, characterized in that: The axis of the resetting telescopic member (22) is arranged in the middle of two groups of axis of the dust cover (3) and the telescope lens of the precision level (1).

4. A civil engineering bridge settlement survey device according to claim 1, characterized in that: The protective cover (2) rotates upward so that the cleaning block (21) is locked and confined in the dust cover (3), and the protective cover (2) rotates downward so that the cleaning block (21) is locked and confined in the telescope lens of the precision level (1).

5. The civil engineering bridge settlement survey device according to claim 1, characterized in that: The precision level (1) is provided with a lifting chassis (4) for adjusting the height of the level.

6. A civil engineering bridge settlement survey device according to claim 5, characterized in that: A screw rod (41) is rotatably mounted in the lifting chassis (4), and a guide slide (42) is assembled on the external thread of the screw rod (41). The lower surface of the guide slide (42) is slidably fitted with the inner surface of the lifting chassis (4). A support frame (43) is rotatably mounted on the guide slide (42), and a support frame (44) is rotatably mounted on the support frame (43). The support frame (44) is fixedly mounted on the bottom of the precision level (1).

7. A civil engineering bridge settlement survey device according to claim 6, characterized in that: The screw rod (41) is externally provided with two groups of reverse thread structures.

Images