Positioning and marking device for water and electricity installation

Abstract

The invention relates to the technical field of water and electricity construction, and discloses a water and electricity installation positioning marking device which comprises a marking frame and a sliding block, the marking frame is provided with a linear sliding groove formed in the length direction of the marking frame, and the sliding block is arranged in the linear sliding groove in a sliding mode and driven by a horizontal displacement mechanism. The lower end of the sliding block extends to the position below the scribing frame and is provided with two scribing arms, the free end of each scribing arm is provided with a scriber, the number of the scribing arms is two, and the degree of the included angle between the two scribing arms can be adjusted through an adjusting knob. Compared with manual scribing, the scribing straightness can be guaranteed, deviation is reduced, the distance between the two scribers is adjusted, the scribing width can be accurately adjusted conveniently according to different water and electricity installation requirements, then it is ensured that the grooving position meets the design requirement, the standardization and safety of water and electricity installation engineering are improved, and the working efficiency is improved. And the stability of the hydroelectric system is prevented from being influenced by improper slotting positions.

Description

Technical Field

[0001] The invention relates to the technical field of hydropower construction, in particular to a positioning and marking device for hydropower installation. Background Art

[0002] In water and electricity installation projects, in order to bury wires and pipes, it is often necessary to perform grooving operations on existing walls or the ground. Before grooving, special tools are needed to pre-mark the wall or the ground, and then the workers use the grooving tools to perform grooving operations along the marked area.

[0003] Traditional marking methods rely on manual operation using simple tools such as ink fountains and tape measures. This method has the following drawbacks:

[0004] 1. It is difficult to position the markings manually, and thus it is difficult to ensure the straightness and accuracy of the markings. Lines are prone to being crooked and with large deviations, which may cause the slotting position to deviate from the design requirements. This not only affects the aesthetics of the project, but may also lead to non-standard buried wires, thus affecting the safety and stability of the hydropower system.

[0005] 2. Manual marking is inefficient, especially when facing large-area or long-distance marking tasks, which requires a lot of time and manpower costs.

[0006] In order to solve the above problems, the present application proposes a positioning and marking device for hydropower installation. Summary of the Invention

[0007] In order to solve the technical problems existing in the background technology, the present invention proposes a positioning and marking device for hydropower installation.

[0008] The present invention proposes a positioning and marking device for hydropower installation, including a marking frame and a sliding block. The marking frame has a linear slide groove arranged along its length direction. The sliding block is slidably arranged in the linear slide groove and is driven by a horizontal displacement mechanism. The lower end of the sliding block extends to the bottom of the marking frame and is equipped with a marking arm. A marking tool is installed on the free end of the marking arm. There are two marking arms, and the angle between the two marking arms can be adjusted by an adjustment knob.

[0009] As a further optimized solution of the present invention, the lower end of the sliding block has a movable cavity, the marking arm extends into the movable cavity at one end away from the marking device and is rotatably connected to the sliding block through a rotating shaft, a gear is installed on the rotating shaft, and the two gears are engaged with each other, and the shaft end of one of the rotating shafts is connected to the adjusting knob.

[0010] As a further optimized solution of the present invention, a movable groove communicating with its movable cavity is opened on the lower end side of the sliding block, and the shape of the movable groove coincides with the motion trajectory of the scribing arm.

[0011] As a further optimized solution of the present invention, the movable slot is in a C shape. The end of the scribing arm far from the scriber passes through the movable slot and enters the sliding block. The two scribing arms are symmetrically distributed with the center of the long side of the movable slot as the axis, and the upper and lower surfaces of the scribing arm are respectively slidably connected to the upper inner wall and the lower inner wall of the movable slot.

[0012] As a further optimized solution of the present invention, the adjusting knob is rotatably installed on the upper end surface of the sliding block. The shaft end of the adjusting knob extends into the movable cavity of the sliding block and is connected to the upper end of one of the rotating shafts through a damping rotating shaft.

[0013] As a further optimized solution of the present invention, the included angle between the two scribing arms is 0 - 180°.

[0014] As a further optimized solution of the present invention, the horizontal displacement mechanism includes a lead screw and a first motor. The lead screw is arranged in the linear sliding slot of the scribing frame, and both ends of the lead screw are rotatably connected to the inner walls at both ends of the linear sliding slot. The first motor is installed at one end of the side of the scribing frame, and the output shaft of the first motor is connected to one end of the lead screw through a coupling.

[0015] As a further optimized solution of the present invention, a positioning gasket is installed at the bottom of the scribing frame. The number of the positioning gaskets is multiple and they are symmetrically distributed at the four corners of the bottom of the scribing frame.

[0016] As a further optimized solution of the present invention, the device further includes a lift. The movable end of the lift faces upward and is installed with a supporting plate. A fixed frame is installed at one end of the side of the scribing frame, and the fixed frame is installed on the supporting plate.

[0017] As a further optimized solution of the present invention, it further includes a base with moving wheels. The lift is installed on the base. A support column is also installed on the base. One end of the support column extends upward and is installed with a bracket. The bracket is arranged below the scribing frame to support one end of the scribing frame close to the fixed frame.

[0018] The positioning and scribing device for water and electricity installation proposed by the present invention has the following beneficial effects:

[0019] (1) By driving the sliding block to slide in the linear sliding slot of the scribing frame through the horizontal displacement mechanism, compared with manual scribing, it can ensure the straightness of the scribing, reduce deviation, and then adjust the included angle between the two scribing arms through the adjusting knob, so as to adjust the distance between the two scribers, facilitate accurately adjusting the scribing width according to different water and electricity installation requirements, and further ensure that the grooving position meets the design requirements, which is beneficial to improving the standardization and safety of the water and electricity installation project, and avoiding affecting the stability of the water and electricity system due to improper grooving position;

[0020] (2) The sliding block is driven to slide by the horizontal displacement mechanism, so that the sliding block drives the cantilever and the scriber to move synchronously, so as to achieve efficient horizontal marking. Compared with manual marking using tools such as ink fountains and tape measures, it greatly saves time and labor costs. Especially in the marking tasks of large areas or long distances, the advantages are more obvious.

[0021] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of the top view of the structure of the first embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the front structure of the first embodiment of the present invention;

[0024] Figure 3 For the present invention Figure 1 Schematic diagram of the internal structure of the middle sliding block;

[0025] Figure 4 This is a structural diagram of embodiment 2 of the present invention;

[0026] Figure 5 This is a schematic diagram of the top view of the structure of the third embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of the front structure of the third embodiment of the present invention;

[0028] Figure 7 For the present invention Figure 6 Schematic diagram of the internal structure of the middle sliding block;

[0029] Figure 8 This is a structural diagram of embodiment 2 of the present invention.

[0030] Description of the drawings: 1. Marking frame; 2. Screw; 3. First motor; 4. Sliding block; 5. Marking arm; 6. Marker; 7. Adjusting knob; 8. Positioning gasket; 9. Rotating shaft; 10. Gear; 11. Movable groove; 12. Base; 13. Lifter; 14. Support plate; 15. Fixed frame; 16. Support column; 17. Bracket; 18. Positioning chassis; 19. Movable plate; 20. Cantilever; 21. Second motor; 22. Handle; 23. Stabilizing plate; 24. Height adjustment mechanism; 25. Annular slide; 26. Slider. DETAILED DESCRIPTION

[0031] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention, and are not to be construed as limiting the present invention.

[0032] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. 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, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0034] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0036] Example 1

[0037] See also Figure 1 and Figure 2 A positioning marking device for water and electricity installation is suitable for ground marking operations. It specifically includes a marking frame 1 and a sliding block 4. The marking frame 1 has a linear slide groove arranged along its length. The sliding block 4 is slidably arranged in the linear slide groove and is driven by a horizontal displacement mechanism. The lower end of the sliding block 4 extends to the bottom of the marking frame 1 and is equipped with a marking arm 5. A marking tool 6 is installed on the free end of the marking arm 5. There are two marking arms 5. The angle between the two marking arms 5 can be adjusted by an adjustment knob 7.

[0038] Both sides of the linear slide are provided with guide grooves arranged along the length direction thereof. Both sides of the sliding block 4 have protrusions adapted to the guide grooves, and the protrusions are slidably connected to the adjacent guide grooves to prevent the sliding block 4 from falling out of the linear slide.

[0039] The marking tool 6 can be a marker pen, chalk or other marking tool in the prior art;

[0040] When performing hydropower installation positioning and marking operations, the marking frame 1 serves as the supporting structure of the entire device and provides an installation foundation for other components. After the horizontal displacement mechanism is started, the sliding block 4 is driven to slide in the linear slide groove of the marking frame 1. The sliding of the sliding block 4 drives the marking arm 5 installed at its lower end to move synchronously. Since the marking tool 6 is installed at the free end of the marking arm 5, the marking tool 6 will also move accordingly to draw lines on the ground. By adjusting the knob 7, the angle between the two marking arms 5 can be changed, and then the distance between the two marking tools 6 can be adjusted to meet the marking width requirements under different hydropower installation needs. Compared with manual marking, this can ensure the straightness of the marking, reduce deviation, ensure that the grooving position meets the design requirements, and improve the standardization and safety of the hydropower installation project.

[0041] Specifically, if Figure 1 As shown, the horizontal displacement mechanism includes a screw 2 and a first motor 3. The screw 2 is arranged in the linear slide of the marking frame 1, and the two ends of the screw 2 are rotatably connected to the inner walls of the two ends of the linear slide. The first motor 3 is installed at one end of the marking frame 1, and the output shaft of the first motor 3 is connected to one end of the screw 2 through a coupling.

[0042] When the first motor 3 starts, the output shaft of the first motor 3 rotates,带动丝杠2转动 through a coupling. Since the lead screw 2 is arranged in the linear chute of the marking frame 1 and is rotatably connected to the inner wall of the chute at both ends, and the sliding block 4 cooperates with the lead screw 2, the rotation of the lead screw 2 will cause the sliding block 4 to move in a straight line horizontally along the lead screw 2 in the linear chute. This structure drives the sliding block 4 to slide. Compared with manual operation, it can more stably and efficiently achieve the synchronous movement of the sliding block 4带动悬臂5和划线器6,实现自动划线,大大节省了时间和人力成本,尤其在大面积或长距离的划线任务中优势明显。

[0043] Specifically, as Figure 3 shown, the lower end of the sliding block 4 has a movable cavity, and one end of the marking arm 5 away from the marking device 6 extends into the movable cavity and is rotatably connected to the sliding block 4 through a rotating shaft 9. A gear 10 is installed on the rotating shaft 9, and the two gears 10 mesh with each other. The shaft end of one of the rotating shafts 9 is connected to the adjusting knob 7;

[0044] When the adjusting knob 7 is rotated, the adjusting knob 7带动与其连接的转轴9转动. Since the gears 10 on the two rotating shafts 9 mesh with each other, the rotation of one rotating shaft 9 will带动另一个转轴9反向转动. And the marking arm 5 is rotatably connected to the sliding block 4 through the rotating shaft ⑨, so the rotation of the rotating shaft 9 will cause the two marking arms 5 to rotate around the rotating shaft 9, thereby changing the included angle between the two marking arms 5. This structural design makes the operation of adjusting the included angle between the two marking arms 5 more convenient and accurate, and can quickly adjust to the required marking width;

[0045] Further, an activity groove 11 communicating with its movable cavity is opened on the side of the lower end of the sliding block 4, and the shape of the activity groove 11 coincides with the movement track of the marking arm 5;

[0046] The activity groove 11 provides an activity space for the rotation of the marking arm 5, ensuring that the marking arm 5 will not be hindered during the rotation process. Because the shape of the activity groove 11 coincides with the movement track of the marking arm 5, when the marking arm 5 rotates, its movement is smoother and more stable, further ensuring the accuracy of adjusting the included angle of the marking arm 5, thereby improving the marking accuracy;

[0047] Further, the activity groove 11 is in a C shape. One end of the marking arm 5 away from the marking device 6 passes through the activity groove 11 and enters the sliding block 4. The two marking arms 5 are symmetrically distributed with the center of the long side of the activity groove 11 as the axis, and the upper and lower surfaces of the marking arm 5 are respectively slidably connected to the upper inner wall and the lower inner wall of the activity groove 11;

[0048] This cooperation mode between the U-shaped movable slot 11 and the scribing arm 5 not only restricts the movement direction of the scribing arm 5, enabling it to rotate only within the range allowed by the movable slot 11, but also enhances the stability of the scribing arm 5 during rotation. The upper and lower surfaces of the scribing arm 5 are slidably connected to the upper and lower inner walls of the movable slot 11, which can reduce the晃动 of the scribing arm 5 during rotation, ensure the accuracy of the relative position of the two scribing arms 5, and进而 ensure the accuracy of the distance adjustment between the two scribing devices 6, improving the scribing quality;

[0049] Further, as Figure 1 and Figure 3 shown, the adjusting knob 7 is rotatably installed on the upper end surface of the sliding block 4, and the shaft end of the adjusting knob 7 extends into the movable cavity of the sliding block 4 and is connected to the upper end of one of the rotating shafts 9 through a damping rotating shaft;

[0050] The adjusting knob 7 is rotatably installed on the upper end surface of the sliding block 4, which is convenient for the operator to operate. The setting of the damping rotating shaft makes the adjusting knob 7 have a certain resistance when rotating, avoiding inaccurate angle adjustment caused by misoperation during the adjustment process. When the operator rotates the adjusting knob 7, the rotation is transmitted to the connected rotating shaft 9 through the damping rotating shaft, and进而实现 the adjustment of the included angle of the scribing arm 5. This design improves the controllability and accuracy of the adjustment;

[0051] It should be noted that the adjusting knob 7 can also be fixed to the sliding block 4 through fasteners such as bolts or pins to play a role in stabilizing the adjustment.

[0052] Specifically, as Figure 1 and Figure 3 shown, the included angle between the two scribing arms 5 is 0 - 180°. Such a design of the angle range can meet the requirements for the scribing width in various different hydropower installation scenarios. In some cases where a narrower scribing width is required, the included angle between the two scribing arms 5 can be adjusted to a smaller angle; while in cases where a wider scribing width is needed, the included angle can be adjusted to a larger angle, or even adjusted to 180°, greatly improving the applicability of the device.

[0053] Specifically, as Figure 1 and Figure 2 shown, a positioning gasket 8 is installed at the bottom of the scribing frame 1, and the number of positioning gaskets 8 is multiple and symmetrically distributed at the four corners of the bottom of the scribing frame 1;

[0054] ​​​​​

[0056] In actual use, different construction scenarios may require marking on walls at different heights. Therefore, based on the first embodiment, the device is improved to be suitable for marking on walls at different heights.

[0057] like Figure 4 As shown, the device further includes an elevator 13, the movable end of the elevator 13 is upward and is installed with a supporting plate 14, and a fixing frame 15 is installed on one end of the scribing frame 1, and the fixing frame 15 is installed on the supporting plate 14;

[0058] The lift 13 can adjust the height of its movable end to drive the supporting plate 14 and the fixed frame 15 to rise or fall synchronously, thereby adjusting the height of the marking frame 1, so that the device can adapt to various construction environments and improve the versatility of the device.

[0059] Furthermore, the device also includes a base 12 with moving wheels, an elevator 13 is installed on the base 12, and a support column 16 is also installed on the base 12. One end of the support column 16 extends upward and is installed with a bracket 17. The bracket 17 is arranged below the scribing frame 1 and supports the end of the scribing frame 1 close to the fixed frame 15 through the bracket 17;

[0060] The base 12 with movable wheels facilitates the movement of the entire device at the construction site. The movable wheels are universal wheels with brakes, which improve the flexibility of the device.

[0061] The support column 16 and the bracket 17 play an auxiliary supporting role for the marking frame 1, making it easier to stably assemble the marking frame 1 on the supporting plate 14 and improving the actual assembly stability.

[0062] Example 3

[0063] like Figure 5-Figure 7 As shown, based on the first embodiment, a positioning and marking device for hydropower installation is proposed, which further includes a positioning chassis 18, on which a movable plate 19 is mounted which slides along its circumferential direction, and a fixed frame 15 is mounted on one end portion of the marking frame 1, and the side of the movable plate 19 away from the positioning chassis 18 is connected to the fixed frame 15, and a cantilever 20 is mounted on the top of the side of the movable plate 19 close to the positioning chassis 18, and the other end of the cantilever 20 is connected to the center of the upper end surface of the positioning chassis 18 by rotation and is driven by a second motor 21, and the cantilever 20 is driven to rotate by the second motor 21, so that the movable plate 19 drives the fixed frame 15 and the marking frame 1 to rotate angularly, so as to adjust the angle in the actual marking process;

[0064] In actual hydropower installation and marking operations, when the marking angle needs to be adjusted, the second motor 21 is started, and the output shaft of the second motor 21 rotates, driving the cantilever 20 connected thereto to rotate around the center of the upper end surface of the positioning chassis 18. Since the cantilever 20 is installed on the top of the side of the movable plate 19 close to the positioning chassis 18, the rotation of the cantilever 20 will cause the movable plate 19 to slide circumferentially on the positioning chassis 18. The side of the movable plate 19 away from the positioning chassis 18 is connected to the fixed frame 15, so the sliding of the movable plate 19 will drive the fixed frame 15 to move, thereby driving the marking frame 1 connected to the fixed frame 15 to rotate at an angle;

[0065] Through such a structural design, the angle of the marking frame 1 can be flexibly adjusted, so that the marking device 6 can mark lines at different angles, meeting the marking needs in complex construction environments, improving the adaptability of the device and the diversity of marking. For example, when marking at special locations such as corners, the marking angle can be easily adjusted to ensure the accuracy of the grooving position and improve the quality of water and electricity installation projects.

[0066] Specifically, if Figure 5 As shown, a handle 22 is installed on the upper end surface of the positioning chassis 18. The handle 22 plays a role when the device is not started or needs to be manually adjusted. When the entire device needs to be moved or the position of the positioning chassis 18 needs to be fine-tuned, the construction personnel can hold the handle 22 to apply force, which can more conveniently push the positioning chassis 18, and then drive the movable plate 19, fixed frame 15, marking frame 1 and other components connected thereto to move. The presence of the handle 22 greatly improves the convenience of the device during operation, makes the construction personnel more labor-saving and flexible to operate, avoids instability or damage that may be caused by directly pushing other parts of the device, and improves construction efficiency and the service life of the device.

[0067] Specifically, if Figure 5-Figure 7 As shown, two symmetrically distributed stabilizing plates 23 are installed on the side of the movable plate 19 away from the positioning chassis 18. The fixed frame 15 is arranged between the two stabilizing plates 23 and can slide longitudinally. A height adjustment mechanism 24 is installed on the movable plate 19. The fixed frame 15 is connected to the movable end of the height adjustment mechanism 24. The height adjustment mechanism 24 drives the fixed frame 15 to rise and fall, so that the fixed frame 15 drives the scribing frame 1 to move downward, so that the positioning gasket 8 contacts the ground.

[0068] The height adjustment mechanism 24 can be an electric screw or electric push rod in the prior art;

[0069] In the pre-construction preparation stage after the angle adjustment of the marking frame 1 is completed, when it is necessary to adjust the height of the marking frame 1 so that the positioning gasket 8 is in contact with the ground and the device is stable, the height adjustment mechanism 24 is started, and the movable end of the height adjustment mechanism 24 will rise or fall according to the operation. Since the fixed frame 15 is connected to the movable end of the height adjustment mechanism 24, the fixed frame 15 will rise and fall synchronously with the movable end of the height adjustment mechanism 24. The fixed frame 15 is set between two stabilizing plates 23 symmetrically distributed on the movable plate 19 and can slide longitudinally. The stabilizing plates 23 play a guiding and stabilizing role, ensuring that the fixed frame 15 remains vertical and stable during the lifting process without deviation or shaking. As the fixed frame 15 rises and falls, the marking frame 1 connected thereto will also rise and fall synchronously;

[0070] When the height adjustment mechanism 24 drives the fixed frame 15 to move downward, the marking frame 1 will also move downward until the positioning gasket 8 at the bottom of the marking frame 1 contacts the ground. At this time, the device reaches a stable working state. This structural design ensures that the device can accurately adjust the height under different construction environments, so that the positioning gasket 8 effectively supports the marking frame 1, ensuring that the marking frame 1 will not shake during the marking process, thereby improving the accuracy and stability of marking.

[0071] Furthermore, if Figure 5 As shown, the movable plate 19 is arc-shaped, and the inner arc surface of the movable plate 19 is slidably connected to the outer peripheral surface of the positioning chassis 18, as shown in FIG. Figure 7 As shown, the outer peripheral surface of the positioning chassis 18 is provided with an annular slide groove 25, and the inner arc surface of the movable plate 19 is provided with a slider 26 adapted to the annular slide groove 25;

[0072] When the second motor 21 drives the cantilever 20 to rotate and drives the movable plate 19 to slide circumferentially around the positioning chassis 18, the arc-shaped design of the movable plate 19 and its matching structure with the positioning chassis 18 play a key role. A slider 26 is installed on the inner arc surface of the movable plate 19, and an annular groove 25 is provided on the outer peripheral surface of the positioning chassis 18. The slider 26 is adapted to the annular groove 25. When the cantilever 20 rotates, the movable plate 19 is driven by the cantilever 20, and its slider 26 will slide in the annular groove 25 of the positioning chassis 18. This structure makes the movable plate 19 9 can make a circular motion smoothly along the outer peripheral surface of the positioning chassis 18, ensuring the stability and accuracy of the movable plate 19 during the rotation process. At the same time, the cooperation of the annular groove 25 and the slider 26 can also limit the movement trajectory of the movable plate 19, so that it can only slide along the path of the annular groove 25, avoiding the movable plate 19 from deviating or separating from the positioning chassis 18 during the rotation process, thereby ensuring the accuracy of the angle adjustment of the marking frame 1, so that the marking angle can meet the construction requirements, and improving the reliability and stability of the device in angle adjustment.

[0073] Furthermore, the longitudinal section of the annular chute 25 is T-shaped, the lower end of the T-shape faces the outer periphery of the positioning chassis 18 and is set to be open, and the slider 26 is a T-shaped block adapted to the annular chute 25;

[0074] The annular chute 25 is designed to be T-shaped in longitudinal section and open at the lower end, and the slider 26 is an adapted T-shaped block. This special structure further enhances the stability and reliability of the connection between the movable plate 19 and the positioning chassis 18. When the movable plate 19 slides on the positioning chassis 18, the T-shaped slider 26 is embedded in the T-shaped annular chute 25. The T-shaped structure enables the slider 26 to not only slide along the annular path in the horizontal direction in the annular chute 25, but also to be better constrained in the vertical direction. The upper part of the T-shaped block is stuck in the upper half of the annular chute 25 to prevent the slider from sliding. 26 escapes from the annular slide groove 25, and even when the device is subjected to a certain external force impact or vibration, it can ensure that the connection between the movable plate 19 and the positioning chassis 18 is stable. At the same time, the T-shaped structure increases the contact area between the slider 26 and the annular slide groove 25, disperses the friction, reduces the wear of the components, and extends the service life of the device. This structural design ensures that during frequent angle adjustments, the movable plate 19 can always slide stably on the positioning chassis 18, ensuring the accuracy and stability of the angle adjustment of the marking frame 1, thereby improving the quality of the marking operation.

[0075] Example 4

[0076] In actual use, different construction scenarios may require marking on walls at different heights. Therefore, based on the first embodiment, the device is improved to be suitable for marking on walls at different heights.

[0077] like Figure 8 As shown, the device also includes an elevator 13, the movable end of the elevator 13 faces upward and is installed with a supporting plate 14, the upper end of the supporting plate 14 is installed with a connecting plate, the number of connecting plates is two and they are arranged opposite to each other to form a mounting groove, the positioning chassis 18 is inserted into the mounting groove with the circumferential surface facing downward, and the end surfaces of the positioning chassis 18 are fixed to the adjacent connecting plates by bolts;

[0078] During the installation and use of the entire device, the lifter 13, the supporting plate 14, the connecting plate and other components work together. First, the lifter 13 is used to adjust the height of the entire device to adapt to construction requirements of different heights. When the positioning chassis 18 needs to be installed, the movable end of the lifter 13 is adjusted to a suitable height so that the mounting groove on the supporting plate 14 is in a position that is convenient for operation. The positioning chassis 18 is inserted into the mounting groove formed by the two oppositely arranged connecting plates with its circumferential surface facing downward, and then the end surfaces of the two sides of the positioning chassis 18 are fixed to the adjacent connecting plates by bolts. This installation method enables the positioning chassis 18 to be firmly installed on the supporting plate 14 of the lifter 13;

[0079] During subsequent use, the lift 13 can drive the support plate 14, the positioning chassis 18 and the connected movable plate 19, the fixed frame 15, the marking frame 1 and other components to rise or fall synchronously by adjusting the height of the movable end. This structural design ensures that the device can be stably installed and used at different construction heights, improves the versatility and adaptability of the device, and enables construction personnel to flexibly adjust the height of the device according to the actual construction environment to meet the requirements of various water and electricity installation and marking operations, thereby improving construction efficiency and quality.

[0080] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A positioning marking device for hydropower installation, characterized in that: It includes a scribing frame (1) and a sliding block (4). The scribing frame (1) has a linear chute provided along its length direction. The sliding block (4) is slidably arranged in the linear chute and is driven by a horizontal displacement mechanism. The lower end of the sliding block (4) extends below the scribing frame (1) and is equipped with a scribing arm (5). A scribing tool (6) is installed at the free end of the scribing arm (5). The number of scribing arms (5) is two, and the included angle between the two scribing arms (5) can be adjusted by an adjusting knob (7).

2. A positioning and marking device for hydropower installation according to claim 1, characterized in that: The lower end of the sliding block (4) has a movable cavity. One end of the scribing arm (5) away from the scribing tool (6) extends into the movable cavity and is rotatably connected to the sliding block (4) through a rotating shaft (9). A gear (10) is installed on the rotating shaft (9), and the two gears (10) are meshed with each other. The shaft end of one of the rotating shafts (9) is connected to the adjusting knob (7).

3. A positioning and marking device for hydropower installation according to claim 2, characterized in that: A movable groove (11) communicating with its movable cavity is formed on the side of the lower end of the sliding block (4), and the shape of the movable groove (11) coincides with the movement track of the scribing arm (5).

4. A positioning and marking device for hydropower installation according to claim 3, characterized in that: The movable groove (11) is in a U shape. One end of the scribing arm (5) away from the scribing tool (6) passes through the movable groove (11) and enters the sliding block (4). The two scribing arms (5) are symmetrically distributed with the center of the long side of the movable groove (11) as the axis, and the upper and lower surfaces of the scribing arm (5) are respectively in sliding connection with the upper inner wall and the lower inner wall of the movable groove (11).

5. A positioning and marking device for hydropower installation according to claim 2, characterized in that:

6. A positioning and marking device for hydropower installation according to claim 1, characterized in that: The adjusting knob (7) is rotatably installed on the upper end surface of the sliding block (4). The shaft end of the adjusting knob (7) extends into the movable cavity of the sliding block (4) and is connected to the upper end of one of the rotating shafts (9) through a damping rotating shaft.

7. A positioning and marking device for hydropower installation according to claim 1, characterized in that: The included angle between the two scribing arms (5) is 0 - 180°.

8. A positioning and marking device for hydropower installation according to claim 1, characterized in that: The horizontal displacement mechanism includes a lead screw (2) and a first motor (3). The lead screw (2) is arranged in the linear chute of the scribing frame (1), and both ends of the lead screw (2) are rotatably connected to the inner walls at both ends of the linear chute. The first motor (3) is installed at one end of the side of the scribing frame (1), and the output shaft of the first motor (3) is connected to one end of the lead screw (2) through a coupling.

9. A positioning and marking device for hydropower installation according to any one of claims 1 to 8, characterized in that: A positioning gasket (8) is installed at the bottom of the scribing frame (1). The number of positioning gaskets (8) is multiple and they are symmetrically distributed at the four corners of the bottom of the scribing frame (1).

10. A positioning and marking device for hydropower installation according to claim 9, characterized in that: The device further includes a lift (13). The movable end of the lift (13) faces upward and is equipped with a supporting plate (14). A fixed frame (15) is installed at one end of the side of the scribing frame (1), and the fixed frame (15) is installed on the supporting plate (14). It further includes a base (12) with moving wheels. The lift (13) is installed on the base (12). A support column (16) is also installed on the base (12). One end of the support column (16) extends upward and is equipped with a bracket (17). The bracket (17) is arranged below the scribing frame (1) to support one end of the scribing frame (1) close to the fixed frame (15).

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