Steel arch advance small catheter opening positioning device

Abstract

The utility model discloses a steel arch frame advance small catheter trepanning positioning device relates to the field of perforating positioning technology, and it includes the bottom plate, is equipped with the support pole on the bottom plate, is equipped with the round pipe no.

Description

Technical Field

[0001] This utility model relates to the field of drilling and positioning technology, and in particular to a device for positioning and opening small guide tubes in advance for steel arch frames. Background Technology

[0002] Currently, steel arch frames are the core structure in tunnel construction, playing a vital role in supporting the tunnel. Through holes are opened on the steel arch frames, allowing concrete to pass through and wrap around the steel arch frames, thereby increasing their supporting force on the tunnel.

[0003] A steel arch frame typically consists of an arc-shaped plate and two baffles. The two baffles are fixed on both sides of the arc-shaped plate along its width and are integrally formed with the arc-shaped plate. The traditional method of drilling holes in a steel arch frame usually involves manual intervention. Using tools such as a tape measure and a scriber, the outline of the through hole is drawn on the surface of the arc-shaped plate according to the design drawings. The steel arch frame with the drawn lines is fixed on a workbench or a pre-set work frame that matches the curvature of the steel arch frame. After selecting a suitable drill bit, the driller manually drills the pre-drawn through hole positions to ensure that the drilled holes are on the same line and aligned. After alignment, the formal drilling begins.

[0004] Regarding the aforementioned technologies, in the process of pre-drawing the outline of the through hole on the steel arch frame, the position of the drawing determines the drilling position. The position of the drawn arc largely depends on manual experience, which makes it easy for the drilling positions to be not on the same arc. Furthermore, trial drilling requires inspection time, which is not conducive to improving the positional accuracy and drilling efficiency of the drilling. Utility Model Content

[0005] To improve the drilling accuracy and efficiency of the device, this application provides a steel arch frame advanced small guide pipe opening positioning device.

[0006] This application provides a pre-drilling positioning device for steel arch frames with small guide tubes, adopting the following technical solution: A steel arch frame advanced small guide tube opening positioning device includes a base plate. A support rod is provided at the upper end of the base plate. A circular tube is coaxially rotatably connected to the support rod. A positioning element for positioning the circular tube is provided on the support rod. A crossbar is provided on the support rod. A circular tube is located at the end of the crossbar away from the support rod. A moving rod is internally threaded onto the circular tube. A rocker arm is connected to the moving rod. A connecting rod is coaxially rotatably connected inside the moving rod. Several positioning blocks are provided circumferentially on the connecting rod. A positioning groove adapted to the positioning blocks is vertically opened inside the circular tube. The positioning blocks are inserted into the positioning grooves and fit against the inner wall of the positioning grooves. The positioning blocks are slidably connected to the positioning grooves vertically. A fixing box is connected to the lower end of the connecting rod. A positioning tube for drawing the outline of the through hole is connected to the lower end of the fixing box.

[0007] By adopting the above technical solution, the base plate supports the support rod, and the vertical displacement of the support rod and the first circular tube is guided and limited. The positioning component fixes the position of the first circular tube after it moves vertically or rotates along the axis of the support rod. The support rod supports and fixes the second circular tube through the crossbar, so that the second circular tube supports the moving rod. The rocker arm is easy for the operator to hold, thereby rotating the moving rod. During the rotation of the moving rod, it moves vertically along the second circular tube, thereby driving the connecting rod to move vertically. The connecting rod drives the fixed box to move vertically, thereby causing the fixed box to drive the positioning tube to move vertically, so that... The positioning tube is moved into the steel arch frame and contacts the surface of the arc plate. The second round tube limits the displacement of the positioning block along the circumference of the second round tube through the positioning groove, thereby limiting the displacement of the connecting rod along the circumference, thus reducing the probability of fixing and rotation along the axis of the second round tube. The operator fixes the position of the positioning tube by abutting the side of the fixing box away from the support rod against the inner wall of the baffle, thereby unifying the distance between the through hole and the baffle, and thus making all through holes located on the same contour line, thereby reducing the operator's inspection and adjustment time, and thus helping to improve the drilling efficiency and drilling accuracy of the drilling device.

[0008] Optionally, the positioning element includes an abutment rod, which is threadedly connected to the round tube and passes through one side wall of the round tube, abutting against the support rod.

[0009] By adopting the above technical solution, the operator can tighten the abutment rod to make it abut against the support rod, thereby fixing the position of the round tube. This helps to improve the convenience of adjusting the height and angle of the round tube and the working stability of the device.

[0010] Optionally, the positioning element includes two rings, both of which are sleeved on the support rod and threadedly connected to the support rod. The two rings are located at the two ends of the circular tube along the vertical direction, and rubber pads are provided on the side of the two rings that are close to each other, and both rings are in contact with the circular tube through the rubber pads.

[0011] By adopting the above technical solution, the operator tightens the two rings to fix the position of the first round tube. The rubber pad increases the friction between the rings and the first round tube, reducing the probability of the first round tube rotating along its own axis, which helps to improve the installation stability of the round tube.

[0012] Optionally, the positioning tube has an arc-shaped hole vertically on the side facing the support rod.

[0013] By adopting the above technical solution, the operator can mark the position of the through hole with an arc-shaped hole, thereby reducing the range of the through hole and improving the accuracy of the drill bit grinding position, which is conducive to improving the drilling accuracy of the drilling device.

[0014] Optionally, a laser emitter is provided on the inner wall of the positioning tube, and the laser emitted by the laser emitter is directly opposite the center of the lower end face of the positioning tube.

[0015] By adopting the above technical solution, the operator can determine the center position of the through hole by using the light emitted by the laser emitter, thereby further improving the accuracy of the drill bit's drilling position.

[0016] Optionally, the upper end of the fixing box has a limiting hole along its width direction, and the upper end of the positioning tube is provided with a threaded rod. The threaded rod is slidably connected to the limiting hole along the length direction of the limiting hole, and a nut is threaded through the limiting hole and connected to the threaded rod. The nut abuts against the upper end face of the fixing box.

[0017] By adopting the above technical solution, the operator can change the distance between the positioning tube and the baffle by moving the threaded rod along the length of the limiting hole, thereby changing the distance of the through hole along the width of the arc plate to adapt to different working conditions and improve the applicability of the device. The inner wall of the limiting hole guides and limits the threaded rod. The operator can tighten the nut to fix the positioning tube and the fixed box, which helps to improve the installation stability of the positioning tube.

[0018] Optionally, a movable plate is slidably connected inside the fixed box, and sliding plates are connected to both ends of the movable plate along the length direction of the fixed box. Bolts are threadedly connected to both ends of the fixed box along the length direction, and the bolts pass through the side wall of the fixed box and abut against the sliding plates.

[0019] By adopting the above technical solution, the fixed box supports the moving plate through the sliding plate. The operator changes the position of the moving plate in the lateral direction, thereby changing the distance between the fixed box and the baffle, and then changing the relative position of the positioning tube and the arc plate, and finally changing the distance between the drilled through hole and the baffle to adapt to different working conditions and improve the applicability of the device.

[0020] Optionally, the base plate has a circular hole for connecting to external equipment, and a caster wheel is detachably connected to the lower end of the base plate along the circumferential direction.

[0021] By adopting the above technical solution, the round hole facilitates the connection and assembly of the base plate with external equipment, thereby making the device adaptable to various usage situations. The operator can move the device by using the casters, which helps to improve the mobility of the device.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The base plate supports the support rod, which guides and limits the vertical displacement of the first circular tube. The positioning component fixes the position of the first circular tube after it moves vertically or rotates along the axis of the support rod. The support rod supports and fixes the second circular tube via a crossbar, allowing the second circular tube to support the moving rod. The rocker arm is easy for the operator to hold, thus rotating the moving rod. During rotation, the moving rod moves vertically along the second circular tube, thereby driving the connecting rod to move vertically. The connecting rod drives the fixed box to move vertically, which in turn drives the positioning tube to move vertically, allowing the positioning tube to move. The tube is inserted into the steel arch frame and contacts the surface of the arc plate. The second round tube limits the displacement of the positioning block along the circumference of the second round tube through the positioning groove, thereby limiting the displacement of the connecting rod along the circumference, thus reducing the probability of fixing and rotation along the axis of the second round tube. The operator fixes the position of the positioning tube by abutting the side of the fixing box away from the support rod against the inner wall of the baffle, thereby unifying the distance between the through hole and the baffle, and thus making all through holes located on the same contour line, thereby reducing the operator's inspection and adjustment time, and thus helping to improve the drilling efficiency and drilling accuracy of the drilling device. 2. By tightening the abutment rod, the operator can make the abutment rod abut against the support rod, thereby fixing the position of the round tube. This helps to improve the convenience of adjusting the height and angle of the round tube and the working stability of the device. 3. The operator tightens the two rings to fix the position of the first round tube. The rubber pad increases the friction between the rings and the first round tube, reducing the probability of the first round tube rotating along its own axis, which helps to improve the installation stability of the round tube. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of Example 1.

[0024] Figure 2 A schematic diagram designed to highlight the internal structure of the circular tube.

[0025] Figure 3 This is a schematic diagram designed to highlight the position of the ring in Embodiment 2.

[0026] Explanation of reference numerals in the attached drawings: 1. Base plate; 11. Round hole; 12. Caster wheel; 2. Support rod; 3. Round tube one; 4. Positioning component; 41. Abutment rod; 42. Ring; 43. Rubber pad; 5. Crossbar; 6. Round tube two; 61. Moving rod; 62. Connecting rod; 63. Positioning groove; 64. Positioning block; 65. Rocker arm; 7. Fixing box; 71. Limiting hole; 72. Moving plate; 73. Sliding plate; 74. Bolt; 8. Positioning tube; 81. Arc-shaped hole; 82. Laser emitter; 83. Threaded rod; 84. Nut. Detailed Implementation

[0027] The present application will be further described in detail below with reference to all the accompanying drawings.

[0028] This application discloses a steel arch frame advanced small guide tube opening positioning device.

[0029] Example 1 Reference Figure 1 and Figure 2 The steel arch frame advanced small guide tube opening positioning device includes a base plate 1. A support rod 2 is fixedly installed on the upper end of the base plate 1. A circular tube 3 is sleeved on the outside of the support rod 2. The circular tube 3 is slidably connected to the support rod 2 in the vertical direction. The support rod 2 guides and limits the vertical movement of the circular tube 3. A positioning component 4 is installed on the circular tube 3. The positioning component 4 includes an abutment rod 41, which is threaded to the side wall of the circular tube 3. The abutment rod 41 passes radially through the circular tube 3 and abuts against the support rod 2 to fix the circular tube 3. A gripping rod is fixedly installed on the side of the abutment rod 41 away from the circular tube 3. The gripping rod is set perpendicular to the abutment rod 41, which facilitates the operator to hold and turn the abutment rod 41, thereby improving the convenience of device operation.

[0030] Reference Figure 1 and Figure 2 A crossbar 5 is fixedly connected to a circular tube 3, and the crossbar 5 is set perpendicular to the circular tube 3. The end of the crossbar 5 away from the circular tube 3 is connected to a circular tube 6 parallel to the circular tube 3. The support rod 2 supports the crossbar 5 through the circular tube 3, and thus supports the circular tube 6 through the crossbar 5. A movable rod 61 is threadedly connected to the circular tube 6, and a connecting rod 62 is coaxially rotatably connected to the movable rod 61. A circular plate is installed at the upper end of the connecting rod 62. The movable rod 61 supports the connecting rod 62 through the circular plate, which helps to improve the connection stability of the connecting rod 62.

[0031] Reference Figure 1 and Figure 2 A fixing box 7 is fixedly installed at the lower end of the connecting rod 62. The fixing box 7 is hollow and has a limiting hole 71 along its width. A threaded rod 83 is slidably connected to the limiting hole 71 along its length. The inner wall of the limiting hole 71 guides and limits the threaded rod 83. A positioning tube 8 is installed at the lower end of the threaded rod 83, and a nut 84 is threadedly connected to the upper end of the threaded rod 83. After the nut 84 is tightened, it abuts against the upper surface of the fixing box 7. The nut 84 and the fixing box 7 cooperate to fix the positioning tube 8, which helps to improve the installation stability of the positioning tube 8.

[0032] Reference Figure 1 and Figure 2Multiple positioning blocks 64 are installed circumferentially at the lower end of the connecting rod 62. Multiple positioning grooves 63 are opened circumferentially on the inner wall of the second round tube 6. The positioning grooves 63 are opened vertically and are parallel to each other. The positioning blocks 64 are inserted into the positioning grooves 63 and fit against the inner wall of the positioning grooves 63. The second round tube 6 limits and guides the positioning blocks 64 through the positioning grooves 63, thereby guiding and limiting the connecting rod 62. When the moving rod 61 rotates along its own axis, the connecting rod 62 only moves vertically with the moving rod 61. This makes the fixed box 7 relatively fixed with the second round tube 6, which helps to improve the working stability of the fixed box 7.

[0033] Reference Figure 1 and Figure 2 A rocker arm 65 is fixedly installed at the upper end of the moving rod 61 for easy gripping by the user. When the device is working, the steel arch frame is located below the fixed box 7. The operator moves the horizontal bar 5 vertically by moving the first round tube 3, which in turn moves the second round tube 6. The second round tube 6 moves the fixed box 7 through the connecting rod 62, and the fixed box 7 moves the positioning tube 8, thus achieving the initial fixation of the height of the positioning tube 8. The operator loosens the rocker arm 65, causing the rocker arm 65 to move the moving rod 61 up and down, which in turn moves the connecting rod 62 up and down. The connecting rod 62 moves the fixing box 7 up and down, which in turn moves the positioning tube 8 up and down. The side of the fixing box 7 away from the support rod 2 abuts against the baffle. The lower end of the positioning tube 8 contacts and locks against the surface of the arc plate, further fixing the positioning tube 8. This positions the drilling location of the through holes and unifies the distance between all through holes and the arc plate, ensuring that all through holes are on the same arc line. This reduces the time the operator spends checking and adjusting the position of the through holes, and helps improve the drilling efficiency and accuracy of the drilling device.

[0034] Reference Figure 1 and Figure 2 An arc-shaped hole 81 is vertically opened along the upper edge of the positioning tube 8, which facilitates the operator to mark the position of the through hole from inside the positioning tube 8, thereby narrowing the range of the through hole and improving the accuracy of the drilling position of the device. A laser emitter 82 is installed at the center of the upper end of the positioning tube 8. The laser emitted by the laser emitter 82 is coaxial with the positioning tube 8. The operator can mark the center of the through hole by pointing to the laser beam, further improving the accuracy of the drilling position of the drilling device.

[0035] Reference Figure 1 A circular hole 11 is provided at the center of the base plate 1 to facilitate the assembly of the base plate 1 with external equipment, thereby making the base plate 1 adaptable to different usage environments. A caster wheel 12 is detachably installed at the lower end of the base plate 1 along the circumference, which facilitates the user to move the device and improves the mobility of the device.

[0036] Reference Figure 1 and Figure 2A movable plate 72 is slidably connected inside the fixed box 7 along its width. Sliding plates 73 are fixedly installed at both ends of the movable plate 72 along its length. The fixed box 7 guides and limits the movement of the sliding plates 73. Bolts 74 are threadedly connected to both ends of the fixed box 7 along its length. The bolts 74 pass through the fixed box 7 and abut against the sliding plates 73, thereby fixing the sliding plates 73 and, consequently, the movable plate 72. By changing the relative positions of the movable plate 72 and the fixed box 7, the operator can change the distance between the positioning tube 8 and the arc-shaped plate, and thus change the distance between the through hole and the arc-shaped plate, adapting to different working conditions and improving the applicability of the device.

[0037] The implementation principle of the pre-drilled small guide tube positioning device for the steel arch frame in this embodiment is as follows: The operator moves the base plate 1 so that the arc plate is aligned with the fixed box 7, and moves the first round tube 3 vertically, causing the first round tube 3 to move the horizontal bar 5. The horizontal bar 5 causes the second round tube 6 to move vertically. The second round tube 6 moves the fixed box 7 through the connecting rod 62. The fixed box 7 causes the positioning tube 8 to move downward, thereby achieving the initial fixation of the positioning tube 8. The operator rotates the rocker arm 65, causing the rocker arm 65 to move the moving rod 61 vertically. The moving rod 61 drives the fixed box 7 to move via the connecting rod 62. The fixed box 7 drives the positioning tube 8 to move vertically, so that the positioning tube 8 is locked with the arc plate, thereby determining the position of the through hole. At this time, the side of the fixed box 7 away from the support rod 2 abuts against the arc plate, thereby fixing the distance between the positioning tube 8 and the arc plate. This unifies the distance between all through holes and the arc plate, so that all through holes are located on the same arc line, reducing the inspection and adjustment time of the operator and improving the drilling accuracy and drilling efficiency of the drilling device.

[0038] Example 2 The difference between this embodiment and embodiment 1 is that the positioning element 4 includes two rings 42.

[0039] Reference Figure 3 Both rings 42 are sleeved on the outside of the support rod 2 and are threaded to the support rod 2. Rubber pads 43 are installed on the side of the two rings 42 that are close to each other. The tube 3 is located between the two rings 42. Both rings 42 abut against the tube 3 through the rubber pads 43. The rubber pads 43 increase the friction between the rings 42 and the tube 3, thereby reducing the probability of relative movement between the tube 3 and the rings 42, which is beneficial to improving the installation stability of the tube 3.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steel arch frame advanced small guide tube opening positioning device, including a base plate (1), characterized in that: The upper end of the base plate (1) is provided with a support rod (2), and a circular tube (3) is coaxially rotatably connected to the support rod (2). The support rod (2) is provided with a positioning component (4) for positioning the circular tube (3). A crossbar (5) is provided on the support rod (2). A circular tube (6) is provided at the end of the crossbar (5) away from the support rod (2). A moving rod (61) is internally threaded onto the circular tube (6). A rocker arm (65) is connected to the moving rod (61). A connecting rod is coaxially rotatably connected to the moving rod (61). The connecting rod (62) has several positioning blocks (64) along its circumference. The inner side of the round tube (6) has a positioning groove (63) that is adapted to the positioning block (64) along its vertical direction. The positioning block (64) is inserted into the positioning groove (63) and fits against the inner wall of the positioning groove (63). The positioning block (64) is slidably connected to the positioning groove (63) along its vertical direction. The lower end of the connecting rod (62) is connected to a fixing box (7). The lower end of the fixing box (7) is connected to a positioning tube (8) for drawing the outline of the through hole.

2. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: The positioning element (4) includes an abutment rod (41), which is threadedly connected to the first round tube (3). The abutment rod (41) passes through the side wall of the first round tube (3) and abuts against the support rod (2).

3. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: The positioning component (4) includes two rings (42), both rings (42) are sleeved on the support rod (2) and are threaded to the support rod (2). The two rings (42) are located at the two ends of the circular tube (3) along the vertical direction, and rubber pads (43) are provided on the side of the two rings that are close to each other, and both rings (42) are in contact with the circular tube (3) through the rubber pads (43).

4. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: The positioning tube (8) has an arc-shaped hole (81) vertically opened on the side facing the support rod (2).

5. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: The inner wall of the positioning tube (8) is provided with a laser emitter (82), and the laser emitted by the laser emitter (82) is directly opposite to the center of the lower end face of the positioning tube (8).

6. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: The upper end of the fixed box (7) has a limiting hole (71) along its width direction. The upper end of the positioning tube (8) is provided with a threaded rod (83). The threaded rod (83) is slidably connected to the limiting hole (71) along the length direction of the limiting hole (71). The threaded rod (83) passes through the limiting hole (71) and is threadedly connected to a nut (84). The nut (84) abuts against the upper end face of the fixed box (7).

7. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: A movable plate (72) is slidably connected inside the fixed box (7). Sliding plates (73) are connected to both ends of the movable plate (72) along the length direction of the fixed box (7). Bolts (74) are threadedly connected to both ends of the fixed box (7) along the length direction. The bolts (74) pass through the side wall of the fixed box (7) and abut against the sliding plates (73).

8. The steel arch frame advanced small guide tube opening positioning device according to claim 1, characterized in that: The base plate (1) has a circular hole (11) for connecting with external equipment, and a caster wheel (12) is detachably connected to the lower end of the base plate (1) along the circumferential direction.

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