Inspection well step mounting and positioning device

Abstract

The utility model discloses an inspection well step mounting and positioning device in the technical field of inspection well construction, which is characterized in that an arc surface matched with the inner wall of an inspection well is formed on a cross rod, and a positioning plate is mounted on the cross rod in a sliding manner along the outline of the arc surface of the cross rod through an adjusting unit, so that the positioning plate can be adjusted to a required position on the ground; the transverse rod is placed in the inspection well to be attached to the well wall of the inspection well, the positioning holes are formed in the positioning plate, the positions of the positioning holes represent the positions where holes need to be formed when the step is installed, an operator only needs to penetrate a drill bit through the positioning holes to drill the well wall of the inspection well, the drilling accuracy can be guaranteed, and the accuracy of follow-up step installation is guaranteed; according to the inspection well, the procedures of line drawing and dotting in the inspection well are omitted, the time of high-altitude operation is shortened, the operation risk is reduced, meanwhile, the cross rods are matched with the diameter of the inspection well, the positions of the positioning holes are more accurate, the positioning accuracy is improved, final step installation can reach the acceptance standard, and reworking is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection well construction, in particular to a positioning device for installing inspection well steps. Background Technique

[0002] The safety and maintenance of urban drainage systems. In urban drainage systems, inspection wells are an indispensable part. They are used to inspect, clean, and repair drainage pipes. Steps are important auxiliary facilities for inspection wells, used for workers to enter and exit inspection wells for daily maintenance and repair work.

[0003] The general installation process of steps is to wait for the concrete of the inspection well to take shape, then measure, draw lines, make marks, and finally drill holes on the surface of the inspection well wall. The process is too complex. Workers need to perform the above steps inside the inspection well, which poses a risk of working at height. At the same time, when drawing lines, most currently use the ink cartridge wire-pulling method, with low accuracy, which easily makes the final mark positioning inaccurate, resulting in the inability to meet the acceptance standards after the final step installation, and the need to rework and cause secondary damage to the well body, resulting in economic losses to the project due to the quality problems of the wellbore.

[0004] Based on this, the utility model designs a positioning device for installing inspection well steps to solve the above problems. Content of the Utility Model

[0005] To achieve the above object, the utility model provides the following technical solution: A positioning device for installing inspection well steps, including a frame and a positioning component; the frame includes two parallel vertical rods and several cross rods installed between the two vertical rods. The several cross rods are installed between the two vertical rods at equal intervals along the length direction of the vertical rods and are perpendicular to the vertical rods. An arc surface matching the inner wall of the inspection well is formed on the cross rods, so that the arc surface of the cross rods can fit the inner wall surface of the inspection well.

[0006] The positioning component includes an adjustment unit and a positioning plate installed on the adjustment unit. The adjustment unit is slidably arranged on the cross rod along the contour of the arc surface of the cross rod, and positioning holes for drilling positioning are formed on the surface of the positioning plate.

[0007] As a further solution of the utility model, an installation rod is also fixedly installed between the two vertical rods. The installation rod is located above all the cross rods; the projection of the installation rod in the vertical direction has a part that extends beyond the arc surface of the cross rod.

[0008] As a further solution of the utility model, an installation rod is also fixedly installed between the two vertical rods. The installation rod is located above all the cross rods; a protruding part is fixedly installed on the surface of the installation rod, and the projection of the protruding part in the vertical direction has a part that extends beyond the arc surface of the cross rod.

[0009] As a further solution of the present utility model, the projection of the mounting rod in the vertical direction is the first projection, and the projection of the cross bar in the vertical direction is the second projection; the first projection is within the second projection or the first projection coincides with the second projection; a regulating unit is slidably mounted on the mounting rod, and the protruding portion is slidably disposed on the mounting rod along the contour of the mounting rod through the regulating unit, and the protruding portion is a round rod and the cross-sectional dimension thereof matches the dimension of the step mounting hole to be opened.

[0010] As a further solution of the present utility model, the vertical rod includes a first section and a second section inserted into the inner cavity of the first section. Both ends of the cross bar are respectively fixed on the first sections of the two vertical rods, and both ends of the mounting rod are respectively fixed on the second sections of the two vertical rods.

[0011] As a further solution of the present utility model, a fastening bolt is threadedly engaged with the outer surface of the first section to fix the position of the second section in the inner cavity of the first section.

[0012] As a further solution of the present utility model, through grooves penetrating to the bottom surface are formed on the top surfaces of the cross bar and the mounting rod. The regulating unit includes a screw rod inserted into the through groove and a first pressing block and a second pressing block mounted at both ends of the screw rod. The projections of the first pressing block and the second pressing block in the vertical direction both have portions exceeding the through groove. The second pressing block is sleeved on the screw rod, and an adjusting handle for preventing the second pressing block from disengaging from the screw rod is mounted at one end of the screw rod. The first pressing block is threadedly engaged with the screw rod at the end far from the adjusting handle.

[0013] As a further solution of the present utility model, a retaining piece for tightly adhering to the side surface of the cross bar or the mounting rod to prevent the first pressing block from rotating is fixedly provided on the first pressing block, and the positioning plate is fixed on the first pressing block.

[0014] As a further solution of the present utility model, the mounting rod, the cross bar and the vertical rod are all made of hollow tubes.

[0015] As a further solution of the present utility model, the cross section of the vertical rod is rectangular, and the two opposite side surfaces of the two vertical rods are inner side surfaces. The cross bar is mounted on any side surface of the vertical rod except the inner side surface.

[0016] The present utility model has the following beneficial effects:

[0017] The device forms an arc surface matching the inner wall of the inspection well on the cross bar, and the positioning plate is slidably installed along the contour of the arc surface of the cross bar through an adjusting unit on the cross bar. The positioning plate can be adjusted to the required position on the ground. Next, the cross bar is placed into the inspection well to fit the well wall. Positioning holes are provided on the positioning plate, and the positions of the positioning holes represent the positions where holes need to be drilled for installing the steps. The operator only needs to pass the drill bit through the positioning holes and then drill the inspection well wall, which can ensure the accuracy of drilling, ensure the accuracy of subsequent step installation, eliminate the processes of drawing lines and marking points in the inspection well, reduce the time of working at heights, reduce the operation risks. At the same time, by making the cross bar match the diameter of the inspection well, the positions of the positioning holes are more accurate, improving the accuracy of positioning, enabling the final step installation to meet the acceptance standards and preventing rework.

[0018] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to the drawings and make a further detailed description of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the first example of the installation rod.

[0021] Figure 2 It is a schematic structural diagram of the second example of the installation rod.

[0022] Figure 3 It is a schematic structural diagram of the cross bar and the installation rod with sliding grooves provided on their surfaces.

[0023] Figure 4 It is a schematic structural diagram of the adjusting unit on the cross bar.

[0024] Figure 5 It is a schematic structural diagram of the adjusting unit on the installation rod.

[0025] Figure 6 It is a schematic installation structure diagram of the vertical rod and the cross bar.

[0026] LEGEND DESCRIPTION:

[0027] 1. Vertical rod; 11. First section; 12. Second section; 13. Fastening bolt; 2. Cross bar; 3. Positioning plate; 31. Positioning hole; 4. Installation rod; 41. Protrusion; 51. Sliding groove; 52. Screw rod; 53. First pressing block; 54. Second pressing block; 55. Adjusting handle; 6. Retaining piece. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. However, the present utility model can be implemented in many different ways defined and covered by the following.

[0029] Please refer to Figure 1-6 , the present utility model provides a technical solution: an installation positioning device for inspection well steps. A frame composed of a cross bar 2 and a vertical bar 1 fits against the inspection well wall. An adjustment unit is slidably installed on the cross bar 2, and a positioning plate 3 is installed on the adjustment unit. A positioning hole 31 is formed on the surface of the positioning plate 3. During the working process, a drill bit is passed through the positioning hole 31 to drill holes in the inspection well wall, which can ensure the accuracy of drilling. When the drilling position is accurate, the subsequent accurate installation of the steps can be guaranteed, improving the qualified rate of subsequent quality inspection. At the same time, the position of the adjustment unit on the cross bar 2 is adjustable, and the position of the mounting plate on the cross bar 2 can be adjusted according to the steps of different sizes and the installation positions of the steps, which can adapt to steps of different sizes and different installation positions. The positioning plate 3 can be adjusted in position on the ground, eliminating the measurement, drawing, and dotting processes in the traditional positioning process, reducing the working time of operators in a limited space, and reducing the safety risks brought by climbing and working at heights.

[0030] Specifically, the frame includes two parallel vertical bars 1 and a number of cross bars 2 installed between the two vertical bars 1. The number of cross bars 2 are equidistantly installed between the two vertical bars 1 along the length direction of the vertical bars 1 and perpendicular to the vertical bars 1. An arc surface matching the inner wall of the inspection well is formed on the cross bar 2, so that the arc surface of the cross bar 2 can fit against the inner wall surface of the inspection well. During work, the vertical bar 1 is vertically lowered into the inspection well, and the outwardly protruding arc surface of the cross bar 2 is close to the inspection well wall. The diameter of the outwardly protruding arc surface of the cross bar 2 is slightly smaller than the inner diameter of the inspection well. In this way, the outwardly protruding arc surface of the cross bar 2 can closely adhere to the inspection well wall, making the positioning plate 3 close to the inspection well wall, facilitating the drilling operation. At the same time, since the shape of the arc surface of the cross bar 2 matches the shape of the inspection well wall, the arc surface can be used to simulate the inspection well wall when adjusting the position of the positioning plate 3 on the ground, making the positioning more accurate and improving the accuracy of the final hole opening position.

[0031] The sliding track of the adjustment unit on the cross bar 2 is circular arc-shaped, and the circular arc-shaped sliding track is concentric with the arc surface of the cross bar 2, ensuring that the distance between the positioning plate 3 and the inspection well wall remains unchanged during the position adjustment process.

[0032] In some examples, a mounting rod 4 is also fixedly installed between the two vertical bars 1, and the mounting rod 4 is located above all the cross bars 2;

[0033] Figure 1An example of the mounting rod 4 is shown. In this example, the projection of the mounting rod 4 in the vertical direction extends beyond the arc surface of the cross bar 2. By placing the part of the mounting rod 4 that extends beyond the arc surface of the cross bar 2 on the top surface of the inspection well, the vertical rod 1 and the cross bar 2 are suspended in the inspection well. The structure is simple and easy to use, and there is no need to drill holes in the concrete wall surface of the inspection well.

[0034] Figure 2 Another example of the mounting rod 4 is shown. In this example, a protrusion 41 is fixedly installed on the surface of the mounting rod 4. The projection of the protrusion 41 in the vertical direction extends beyond the arc surface of the cross bar 2. By placing the protrusion 41 on the top surface of the inspection well, the vertical rod 1 and the cross bar 2 are suspended in the inspection well. The structure is simple and easy to use, and there is no need to drill holes in the concrete wall surface of the inspection well.

[0035] In this example, the projection of the mounting rod 4 in the vertical direction is the first projection, and the projection of the cross bar 2 in the vertical direction is the second projection. The first projection is inside the second projection or the first projection coincides with the second projection. On the premise that the cross bar 2 fits the inspection well wall, the mounting rod 4 can also enter the inspection well. At the same time, the protrusion 41 on the mounting rod 4 is also slidably arranged on the mounting rod 4 along the arc surface contour of the cross bar 2 through an adjusting unit. The protrusion 41 is a round rod and the cross-sectional dimension is matched with the dimension of the step mounting hole to be opened, so that the protrusion 41 can be inserted into the step mounting hole opened on the inspection well wall surface. In this way, when the depth of the inspection well is greater than the length of the vertical rod 1, first place the protrusion 41 on the top surface of the inspection well to drill a hole at the position of the inspection well wall near the top of the inspection well. Then adjust the position of the protrusion 41 to be the same as the distance between the opening on the inspection well wall surface, and insert the protrusion 41 into the step mounting hole opened on the inspection well wall surface, so as to reduce the height of the vertical rod 1 and the cross bar 2 in the inspection well and realize the drilling of the step mounting hole at the lower position in the inspection well, which can adapt to inspection wells of different depths.

[0036] In this example, as Figure 2As shown in the figure, the vertical rod 1 includes a first section 11 and a second section 12 inserted into the inner cavity of the first section 11. Both ends of the cross rod 2 are respectively fixed to the first sections 11 of the two vertical rods 1, and both ends of the mounting rod 4 are respectively fixed to the second sections 12 of the two vertical rods 1. That is to say, the overall length of the vertical rod 1 can be adjusted within a certain range, and the maximum value is the sum of the lengths of the first section 11 and the second section 12. In this way, the total length of the vertical rod 1 is increased. When the depth of the inspection well is not greater than the total length of the vertical rod 1, the position of the cross rod 2 can be adjusted steplessly by adjusting the position of the second section 12 in the inner cavity of the first section 11 to achieve drilling at different height positions. The use state where the protruding part 41 is placed on the inspection well is defined as the first state, and the use state where the protruding part 41 is inserted into the step installation hole opened on the inspection well wall is the second state. Since the bottom surface of the protruding part 41 in the first state is in contact with the top surface of the inspection well, and the distance from the highest step to the top surface of the inspection well is different from the height difference between the steps, the distance between the mounting rod 4 and the cross rod 2 in the first state certainly cannot be directly applied in the second state. Therefore, when converting from the first state to the second state, the distance between the mounting rod 4 and the uppermost cross rod 2 also needs to be adjusted so that the height difference between the positioning hole 31 opened on the positioning plate 3 of the uppermost cross rod 2 and the protruding part 41 is equal to the height difference between the steps, ensuring the accuracy of subsequent step installation.

[0037] As Figure 2 shown, in this example, a fastening bolt 13 is threadedly engaged with the outer surface of the first section 11 to fix the position of the second section 12 in the inner cavity of the first section 11.

[0038] As Figure 3As shown in the figure, sliding grooves 51 penetrating from the top surface to the bottom surface are formed on the top surfaces of the cross bar 2 and the mounting bar 4. The adjusting unit includes a screw rod 52 inserted into the sliding groove 51, and a first pressing block 53 and a second pressing block 54 mounted at both ends of the screw rod 52. The projections of the first pressing block 53 and the second pressing block 54 in the vertical direction both have parts exceeding the sliding groove 51. The second pressing block 54 is sleeved on the screw rod 52, and an adjusting handle 55 for preventing the second pressing block 54 from detaching from the screw rod 52 is installed at one end of the screw rod 52. The first pressing block 53 is threadedly engaged with the screw rod 52 at the end far from the adjusting handle 55. By rotating the screw rod 52 to make the screw rod 52 rotate relative to the first pressing block 53, the distance between the first pressing block 53 and the second pressing block 54 is changed. When it is necessary to fix the position of the screw rod 52, the first pressing block 53 is brought closer to the second pressing block 54, and the first pressing block 53 and the second pressing block 54 respectively fit the top surface and the bottom surface of the mounting bar 4 or the cross bar 2 to fix the position of the adjusting unit on the cross bar 2 or the mounting bar 4. When it is necessary to move the adjusting unit, rotate the screw rod 52 to increase the distance between the first pressing block 53 and the second pressing block 54, and then the screw rod 52 can be freely moved in the sliding groove 51. The movement path of the screw rod 52 is restricted by the sliding groove 51 to prevent the screw rod 52 from detaching from the sliding groove 51 and prevent the adjusting unit from falling off.

[0039] In this example, as Figure 4-5 shown, a retaining piece 6 for tightly adhering to the side surface of the cross bar 2 or the mounting bar 4 to prevent the first pressing block 53 from rotating is fixedly provided on the first pressing block 53. The positioning plate 3 is fixed to the first pressing block 53. During the process of rotating the screw rod 52, it is necessary to ensure that the first pressing block 53 does not rotate together with the screw rod 52. Therefore, a retaining piece 6 is installed on the first pressing block 53. The retaining piece 6 can be attached to the side surface of the cross bar 2 or the mounting bar 4, and the stationary state of the first pressing block 53 can be ensured when the screw rod 52 rotates. The two ends of the cross bar 2 and the mounting bar 4 are connected to the vertical bar 1. Therefore, the side surfaces of the cross bar 2 and the mounting bar 4 refer to the side facing the inspection well wall or the side facing away from the inspection well wall of the cross bar 2 and the mounting bar 4. The side of the cross bar 2 facing the inspection well wall is an arc surface.

[0040] Optionally, the mounting bar 4, the cross bar 2, and the vertical bar 1 are all made of hollow tubes to reduce the weight of the overall device.

[0041] Specifically, as Figure 6 shown, the cross section of the vertical bar 1 is rectangular, and the two opposite side surfaces of the two vertical bars 1 are inner side surfaces. The cross bar 2 is installed on any side surface of the vertical bar 1 except the inner side surface to prevent the vertical bar 1 from protruding from the leftmost and rightmost sides of the cross bar 2 and prevent the vertical bar 1 from interfering with the inspection well wall and causing the cross bar 2 to be unable to fit the inspection well wall.

[0042] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An installation positioning device for inspection well steps, characterized in that: It includes a frame and a positioning component; The frame includes two parallel vertical rods (1) and a number of cross rods (2) installed between the two vertical rods (1). The number of cross rods (2) is equally spaced along the length direction of the vertical rods (1) and perpendicular to the vertical rods (1). An arc surface matching the inner wall of the inspection well is formed on the cross rod (2) so that the arc surface of the cross rod (2) can fit the inner wall surface of the inspection well; The positioning component includes an adjusting unit and a positioning plate (3) installed on the adjusting unit. The adjusting unit is slidably arranged on the cross rod (2) along the contour of the arc surface of the cross rod (2). Positioning holes (31) for drilling positioning are provided on the surface of the positioning plate (3).

2. The installation positioning device for inspection well steps according to claim 1, wherein: An installation rod (4) is also fixedly installed between the two vertical rods (1), and the installation rod (4) is located above all the cross rods (2); The projection of the installation rod (4) in the vertical direction has a part that extends beyond the arc surface of the cross rod (2).

3. The installation positioning device for inspection well steps according to claim 1, characterized in that: An installation rod (4) is also fixedly installed between the two vertical rods (1), and the installation rod (4) is located above all the cross rods (2); A protruding part (41) is fixedly installed on the surface of the installation rod (4), and the projection of the protruding part (41) in the vertical direction has a part that extends beyond the arc surface of the cross rod (2).

4. The installation positioning device for inspection well steps according to claim 3, characterized in that: The projection of the installation rod (4) in the vertical direction is the first projection, and the projection of the cross rod (2) in the vertical direction is the second projection; The first projection is within the second projection or the first projection coincides with the second projection; An adjusting unit is slidably installed on the installation rod (4). The protruding part (41) is slidably arranged on the installation rod (4) along the contour of the arc surface of the cross rod (2) through the adjusting unit. The protruding part (41) is a round rod and the cross-sectional dimension is matched with the dimension of the step installation hole to be opened.

5. The manhole step installation positioning device according to claim 2 or 3, characterized in that: The vertical rod (1) includes a first section (11) and a second section (12) inserted into the inner cavity of the first section (11). The two ends of the cross rod (2) are respectively fixed on the first sections (11) of the two vertical rods (1), and the two ends of the installation rod (4) are respectively fixed on the second sections (12) of the two vertical rods (1).

6. The installation positioning device for inspection well steps according to claim 5, characterized in that: A fastening bolt (13) is threadedly engaged with the outer surface of the first section (11) to fix the position of the second section (12) in the inner cavity of the first section (11).

7. The installation positioning device for inspection well steps according to claim 3, characterized in that: Chute grooves (51) penetrating from the top surface to the bottom surface are provided on the top surfaces of the cross rod (2) and the installation rod (4). The adjusting unit includes a screw rod (52) inserted into the chute groove (51) and a first pressing block (53) and a second pressing block (54) installed at both ends of the screw rod (52). The projections of the first pressing block (53) and the second pressing block (54) in the vertical direction both have parts that extend beyond the chute groove (51). The second pressing block (54) is sleeved on the screw rod (52), and an adjusting handle (55) for preventing the second pressing block (54) from detaching from the screw rod (52) is installed at one end of the screw rod (52). The first pressing block (53) is threadedly engaged with the screw rod (52) at the end far from the adjusting handle (55).

8. The installation and positioning device for inspection well steps according to claim 7, characterized in that: A retaining piece (6) for closely attaching to the side surface of the cross bar (2) or the mounting rod (4) to prevent the first pressing block (53) from rotating is fixedly provided on the first pressing block (53), and the positioning plate (3) is fixed on the first pressing block (53).

9. The installation positioning device for inspection well steps according to claim 2, characterized in that: The mounting rod (4), the cross bar (2) and the vertical rod (1) are all made of hollow tubes.

10. The installation positioning device for inspection well steps according to claim 1, characterized in that: The cross section of the vertical rod (1) is rectangular, and the two opposite side surfaces of the two vertical rods (1) are inner side surfaces, and the cross bar (2) is mounted on any side surface of the vertical rod (1) except the inner side surface.

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