A circular pipe drilling and fixing device

Abstract

This utility model discloses a circular tube drilling and fixing device, relating to the field of circular tube drilling and fixing technology. It includes a handheld electric drill, a connecting assembly, and a fixing assembly. The connecting assembly includes a connecting sleeve, a connecting rod, a positioning element, and a telescopic part. The fixing assembly includes a linkage element and a clamping element, which are perpendicular to each other and form a quadrilateral structure. By setting the linkage element and clamping element to form a deformable quadrilateral structure, when the linear distance between the clamping elements decreases, the clamping element can be clamped to the outside of the circular tube, thus fixing the clamping element, positioning element, handheld electric drill, and circular tube together. The clamping element is located on both sides of the linkage element, and the positioning element is located in the middle of the linkage element. This ensures that the handheld electric drill is centered during the clamping process, and under the limitation of the connecting rod, the handheld electric drill moves linearly along the axial direction of the connecting rod to drill. This makes it convenient and quick to install and remove the handheld electric drill when drilling on the circular tube, and the drilling position can be adjusted conveniently and flexibly.

Description

Technical Field

[0001] This utility model relates to the field of circular tube drilling and fixing technology, specifically to a circular tube drilling and fixing device. Background Technology

[0002] When drilling holes in circular pipe components, because the outer surface of the circular pipe component is circular, the contact area between the drill bit and the outer surface of the circular pipe is small. During the drilling process, the drill bit is prone to slippage and displacement, which can lead to situations such as drilling off-center or drilling the wrong hole, thus failing to meet the drilling requirements.

[0003] Utility model patent CN205869529U discloses a fixing fixture for drilling a circular tube, including a fixing frame for fixing the circular tube, with one fixing frame fixed at each end of the circular tube; a drilling machine fixing platform is provided on the circular tube between the two fixing frames, which can move back and forth along the circular tube. In the above technical solution: the drilling machine fixing platform includes a flat plate, a channel steel, a first arc-shaped tube, and screws; the channel steel includes an upper channel steel and a lower channel steel, and the flat plate is placed parallel to and fixed on the upper channel steel; the first arc-shaped tube is sleeved on the outer circumference of the circular tube and is located between the channel steel and the lower channel steel; screws are provided on both sides of the first arc-shaped tube, and the screws pass vertically through the lower channel steel and the upper channel steel respectively; the upper channel steel has a threaded hole that cooperates with the screw for fixing, and a movable nut is provided on the screw located below the lower channel steel. The movable nut can be tightened upward to fix the round tube. The fixing frame includes a base, a support rod, and a second arc-shaped tube. The two sides of the second arc-shaped tube are respectively provided with wing plates with threaded holes. One end of the support rod is fixed to the base, and the other end is provided with external threads and is threadedly fixed to the internal threaded hole on the wing plate. In this patent, the round tube is clamped and fixed by the arc-shaped fixing frame, and then a drill is used to drill holes in the round tube. However, in the process of use, the fixing and disassembly of the round tube is cumbersome, the position of the drill and the position of the round tube are difficult to adjust flexibly, and the drilling efficiency is low. Utility Model Content

[0004] The main purpose of this utility model is to provide a round pipe drilling fixing device to solve the problem that existing round pipe drilling devices are difficult to flexibly adjust the position of the drilling machine and the round pipe for drilling.

[0005] To achieve the above objectives, this utility model provides a circular tube drilling and fixing device, including a handheld electric drill, and further comprising:

[0006] The connecting assembly includes a connecting sleeve detachably connected to a handheld electric drill and a connecting rod disposed on the connecting sleeve; the connecting rod is provided with a positioning element and a telescopic part, so that the handheld electric drill can move linearly toward or away from the positioning element along the axial direction of the connecting rod;

[0007] The fixing component includes a linkage member rotatably connected to the center of the positioning member, and clamping members rotatably and equidistantly arranged on both sides of the linkage member; the linkage member and the clamping members are perpendicular to each other and form a quadrilateral structure; a clamping space is formed between the clamping members; the clamping members move under the action of external force, so that the quadrilateral structure composed of the linkage member and the clamping members deforms, thereby reducing the straight distance between the clamping members and clamping and fixing the clamping members to the external circular tube.

[0008] As a further improvement of this utility model, the connecting sleeve includes a connecting left sleeve and a connecting right sleeve, and the connecting left sleeve and the connecting right sleeve are respectively provided with ear plates; bolts are passed through the ear plates to fix the connecting left sleeve and the connecting right sleeve to the hand-held electric drill.

[0009] As a further improvement of this utility model, the left connecting sleeve and the right connecting sleeve are respectively provided with connecting blocks, and the line connecting the connecting rods on the left connecting sleeve and the right connecting sleeve intersects with the axis of the handheld electric drill; the connecting rods are fixedly connected to the connecting blocks.

[0010] As a further improvement of this utility model, the telescopic part includes a telescopic rod slidably connected to the connecting rod and a telescopic spring sleeved on the telescopic rod; a fixed rod is provided at the end of the telescopic rod away from the connecting rod; and the two ends of the telescopic spring are respectively fixedly connected to the connecting rod and the fixed rod.

[0011] As a further improvement of this utility model, the positioning component includes a positioning plate; the positioning plate has a positioning hole at its center; the positioning hole is opposite to the axis of the handheld electric drill; the fixing rod is perpendicular to the positioning plate and fixedly connected.

[0012] As a further improvement of this utility model, the linkage component includes a linkage rod; the linkage rod is located at both ends of the positioning plate, and the middle part of the linkage rod is rotatably connected to the positioning plate.

[0013] As a further improvement of this utility model, the clamping member includes a clamping left plate and a clamping right plate that are rotatably connected to the linkage rod respectively; the two ends of the clamping left plate are respectively provided with a first clamping groove; the two ends of the clamping right plate are respectively provided with a second clamping groove; the two ends of the linkage rod are respectively located in the first clamping groove and the second clamping groove.

[0014] As a further improvement of this utility model, friction pads are provided on the left clamping plate and the right clamping plate respectively.

[0015] As a further improvement of this utility model, the right clamping plate is provided with a locking groove; the left clamping plate is provided with a locking rod; the locking rod passes through the locking groove and is provided with a locking screw sleeve.

[0016] The beneficial effects of this utility model are reflected in:

[0017] By setting up linkage components and clamping components to form a deformable quadrilateral structure, when the linear distance between the clamping components decreases, the clamping components can be clamped to the outside of the round tube, so that the clamping components, positioning components, handheld electric drill are fixedly connected to the round tube. The clamping components are located on both sides of the linkage components and the positioning components are located in the middle of the linkage components, which can ensure that the handheld electric drill is in the center during the clamping of the round tube. Under the limit of the connecting rod, the handheld electric drill can move linearly along the axis of the connecting rod to drill holes. Thus, when drilling holes in the round tube, it is convenient and quick to install and remove the handheld electric drill, and the drilling position can be adjusted conveniently and flexibly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the connection structure between a round tube drilling fixing device and a handheld electric drill according to the present invention;

[0019] Figure 2 This utility model relates to a circular tube drilling and fixing device. Figure 1 Enlarged structural diagram at point A;

[0020] Figure 3 This is a schematic diagram of the overall structure of a circular tube drilling and fixing device according to the present invention;

[0021] Figure 4 This is a schematic diagram of the clamping component structure of a circular tube drilling and fixing device according to the present invention;

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Handheld electric drill; 2. Connecting sleeve; 201. Connecting left sleeve; 202. Connecting right sleeve; 203. Ear plate; 204. Bolt; 3. Connecting rod; 4. Positioning component; 401. Positioning plate; 402. Positioning hole; 5. Telescopic part; 501. Telescopic rod; 502. Telescopic spring; 6. Linkage component; 601. Linkage rod; 7. Clamping component; 701. Clamping left plate; 702. Clamping right plate; 703. First clamping groove; 704. Second clamping groove; 8. Clamping space; 9. Connecting block; 10. Fixing rod; 11. First rotating pin; 12. First rotating hole; 13. Second rotating hole; 14. Second rotating pin; 15. Third rotating hole; 16. Third rotating pin; 17. Handle; 18. Friction pad; 19. Locking groove; 20. Locking rod; 21. Locking screw sleeve. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this utility model. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0025] In one embodiment, see Figure 1 The present invention provides a round tube drilling and fixing device, comprising a handheld electric drill 1, a connecting component, and a fixing component.

[0026] The connecting assembly includes a connecting sleeve 2 detachably connected to the handheld electric drill 1, a connecting rod 3 disposed on the connecting sleeve 2, a positioning element 4 disposed on the connecting rod 3, and a telescopic part 5 disposed on the connecting rod 3, so that the handheld electric drill 1 can move linearly toward or away from the positioning element 4 along the axial direction of the connecting rod 3; the fixing assembly includes a linkage 6 rotatably connected to the middle of the positioning element 4, and clamping elements 7 rotatably and equidistantly disposed on both sides of the linkage 6. The linkage 6 and the clamping elements 7 are perpendicular to each other and form a quadrilateral structure, and a clamping space 8 is formed between the clamping elements 7. The clamping elements 7 move under the action of external force, so that the quadrilateral structure composed of the linkage 6 and the clamping elements 7 deforms, thereby reducing the linear distance between the clamping elements 7 and clamping and fixing the clamping elements 7 to the external round tube.

[0027] Since the outer wall of the round tube is a smooth arc-shaped structure, it is difficult to drill a hole that meets the requirements directly using a handheld electric drill 1. In this embodiment, the quadrilateral fixing device is clamped on both sides of the round tube by the connecting sleeve 2 and the connecting rod 3, which can fix the handheld electric drill 1 to the round tube, thereby fixing the position of the handheld electric drill 1 relative to the round tube. After the handheld electric drill 1 is pushed through the positioning piece 4 and moves towards the round tube, the drill bit of the handheld electric drill 1 can only move in a straight line due to the limitation of the connecting rod 3. It will not deviate during the drilling process, and can drill quickly and stably.

[0028] In this embodiment, since the handheld electric drill 1 is an existing finished structure, in order to ensure that the connecting rod 3, positioning component 4, fixing component and handheld electric drill 1 are stably connected, the connecting sleeve 2 includes a left connecting sleeve 201 and a right connecting sleeve 202. The left connecting sleeve 201 and the right connecting sleeve 202 are respectively provided with ear plates 203. Bolts 204 are passed through the ear plates 203 to fix the left connecting sleeve 201 and the right connecting sleeve 202 to the handheld electric drill 1.

[0029] Preferably, both the left connecting sleeve 201 and the right connecting sleeve 202 are hollow semi-circular ring structures. The internal dimensions of the left connecting sleeve 201 and the right connecting sleeve 202 are determined by the external dimensions of the handheld electric drill 1. The ear plate 203 is provided with a through hole for the bolt 204 to pass through. The bolt 204 is provided with a nut by thread. During the tightening of the nut, the left connecting sleeve 201 and the right connecting sleeve 202 move towards each other and are clamped on the outer wall of the handheld electric drill 1.

[0030] Further, see Figure 2 Connecting blocks 9 are provided on the left sleeve 201 and the right sleeve 202 respectively. The connecting rod 3 is fixedly connected to the connecting block 9. The line connecting the connecting rod 3 on the left sleeve 201 and the right sleeve 202 intersects the axis of the handheld electric drill 1.

[0031] Preferably, two sets of connecting rods 3 are provided, and the two sets of connecting rods 3 are perpendicularly connected to the connecting block 9 respectively. The connecting rods 3 are arranged parallel to the axis of the handheld electric drill 1. The movement of the handheld electric drill 1 can be reversed and fixed through the connecting rods 3. During the movement, the handheld electric drill 1 can only move in the axial direction parallel to the connecting rods 3.

[0032] Further, see Figure 3 The telescopic part 5 includes a telescopic rod 501 that is slidably connected to the connecting rod 3 and a telescopic spring 502 sleeved on the telescopic rod 501. A fixed rod 10 is provided at one end of the telescopic rod 501 away from the connecting rod 3. The two ends of the telescopic spring 502 are fixedly connected to the connecting rod 3 and the fixed rod 10, respectively.

[0033] Preferably, the connecting rod 3 has a hollow interior forming a sliding cavity, and the telescopic rod 501 slides within the sliding cavity. During the drilling process of the handheld drill 1 into the round pipe, the handheld drill 1 needs to move linearly along the axial direction of the connecting rod 3. The telescopic rod 501 and the sliding cavity are fitted with a clearance. During the linear movement of the handheld drill 1, the telescopic rod 501 can slide into or out of the sliding cavity, and the telescopic spring 502 is compressed or unfolded synchronously, thereby realizing the linear movement of the handheld drill 1. The two ends of the telescopic spring 502 can be connected to the connecting rod 3 and the fixed rod 10 respectively by welding. During the movement of the handheld drill 1 toward the positioning member 4, the telescopic spring 502 is compressed, and the distance between the positioning member 4 and the handheld drill 1 decreases. During the process of withdrawing the handheld drill 1 after drilling is completed, the telescopic spring 502 unfolds, and the distance between the positioning member 4 and the handheld drill 1 increases.

[0034] In one embodiment, see Figure 3 , 4 The positioning component 4 includes a positioning plate 401, with a positioning hole 402 at the center of the positioning plate 401. The positioning hole 402 is opposite to the axis of the handheld electric drill 1, and the fixing rod 10 is perpendicular to and fixedly connected to the positioning plate 401.

[0035] Preferably, the distances from the two sets of fixing rods 10 to the positioning holes 402 are consistent, thereby ensuring that the axis of the handheld electric drill 1 (i.e. the drill bit of the handheld electric drill 1) is aligned with the positioning holes 402. As the handheld electric drill 1 moves toward the positioning plate 401, the distance between the handheld electric drill 1 and the positioning plate 401 decreases, and the drill bit passes through the positioning holes 402 and abuts against the round tube to drill.

[0036] In one embodiment, see Figure 3 The linkage component 6 includes a linkage rod 601, which is located at both ends of the positioning plate 401, and the middle part of the linkage rod 601 is rotatably connected to the positioning plate 401.

[0037] Preferably, two sets of linkage rods 601 are provided. The middle part of each set of linkage rods 601 is provided with a first rotating pin 11. The two ends of the positioning plate 401 are respectively provided with a first rotating hole 12. The first rotating pin 11 passes through the first rotating hole 12 and connects the linkage rod 601 to the positioning plate 401. When a force is applied to the end of the first rotating pin 11 that passes through the first rotating hole 12, the outer diameter of the end of the end of the first rotating pin 11 increases, so that the outer diameter of the end of the first rotating pin 11 is greater than the inner diameter of the first rotating hole 12 and will not disengage from the first rotating hole 12. The first rotating pin 11 and the first rotating hole 12 are clearance-fitted, and the linkage rod 601 can rotate along the first rotating hole 12. The positioning plate 401 is located in the middle of the two sets of linkage rods 601, forming an "I" shaped structure.

[0038] Further, see Figure 3 , 4 The clamping member 7 includes a left clamping plate 701 and a right clamping plate 702 that are rotatably connected to the linkage rod 601. The two ends of the left clamping plate 701 are respectively provided with a first clamping groove 703, and the two ends of the right clamping plate 702 are respectively provided with a second clamping groove 704. The two ends of the linkage rod 601 are respectively located in the first clamping groove 703 and the second clamping groove 704.

[0039] Preferably, the left clamping plate 701 is provided with a second rotating hole 13 that penetrates the first clamping groove 703, and a second rotating pin 14 is provided in the second rotating hole 13. The right clamping plate 702 is provided with a third rotating hole 15 that penetrates the second clamping groove 704, and a third rotating pin 16 is provided in the third rotating hole 15. Both ends of the linkage rod 601 are respectively provided with through holes, and the second rotating pin 14 and the third rotating pin 16 are rotatably connected to the through holes respectively.

[0040] Preferably, the left clamping plate 701 is provided with a handle 17.

[0041] In the above configuration, the left clamping plate 701, the right clamping plate 702, and the two sets of linkage rods 601 form a quadrilateral structure (initially, the interior angles of this quadrilateral structure are all 90°). Since the two ends of the linkage rods 601 are rotatably connected to the left clamping plate 701 and the right clamping plate 702 respectively, when the handle 17 is pulled to move the left clamping plate 701 axially, the quadrilateral structure can be deformed into a parallelogram structure. At this time, the interior angles of the quadrilateral structure change, the straight-line distance between the left clamping plate 701 and the right clamping plate 702 decreases, and under the action of the positioning plate 401, the left clamping plate 701... The right clamping plate 702 moves the same distance toward the positioning plate 401. The left clamping plate 701 and the right clamping plate 702 are clamped on both sides of the round tube, and the handheld electric drill 1 is fixedly connected to the round tube. By pulling the handle 17, the left clamping plate 701 is moved, which in turn moves the left clamping plate 701 and the right clamping plate 702 to reduce the straight-line distance to clamp the round tube. The operator can hold the handle 17 with one hand and the handheld electric drill 1 with the other hand to move toward the round tube to perform drilling operations. After drilling is completed, push the handle 17 to move the left clamping plate 701 and the right clamping plate 702 to increase the straight-line distance to release the round tube. The operation is convenient and quick.

[0042] Further, see Figure 3 , 4 To enhance the friction between the left clamping plate 701, the right clamping plate 702 and the outer wall of the round tube, friction pads 18 are provided on the left clamping plate 701 and the right clamping plate 702 respectively.

[0043] Preferably, the friction pad 18 is made of rubber. The friction pad 18 made of rubber has a large coefficient of friction with the round tube. At the same time, the friction pad 18 made of rubber is compressed when it comes into contact with the round tube, which can increase the contact area with the round tube, thereby increasing the friction force and making the left clamping plate 701 and the right clamping plate 702 stably connected to the round tube.

[0044] In one embodiment, see Figure 3 , 4 To ensure the stability of the left clamping plate 701 and the right clamping plate 702 when connected to the round tube, the right clamping plate 702 is provided with a locking groove 19, and the left clamping plate 701 is provided with a locking rod 20. The locking rod 20 passes through the locking groove 19 and is provided with a locking nut 21.

[0045] Preferably, the locking groove 19 is arranged along the axial direction of the right plate 702, one end of the locking rod 20 is fixedly connected to the left plate 701, and the locking rod 20 is threadedly connected to the locking sleeve 21. When the left plate 701 and the right plate 702 move down a linear distance, the locking rod 20 moves within the locking groove 19.

[0046] In this embodiment, the locking rod 20 is located at the end of the left clamping plate 701, and the other end of the locking rod 20 is located in the end of the locking groove 19. Therefore, when clamping the round tube, the clamping base plate moves up and the right clamping plate 702 moves down to clamp the round tube, so that the locking rod 20 will not cause obstruction. Of course, the position of the locking rod 20 can also be moved up to the middle of the left clamping plate 701, but space must be left for the drill bit of the handheld electric drill 1 to pass through, so as to avoid obstructing the drill bit. In this way, the left clamping plate 701 and the right clamping plate 702 can be moved up or down to clamp the round tube.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A round pipe drilling fixture comprising a hand-held electric drill (1), characterized in that, Also includes: The connecting assembly includes a connecting sleeve (2) detachably connected to a handheld electric drill (1) and a connecting rod (3) provided on the connecting sleeve (2); the connecting rod (3) is provided with a positioning element (4) and a telescopic part (5) so that the handheld electric drill (1) can move linearly toward or away from the positioning element (4) along the axial direction of the connecting rod (3); The fixing component includes a linkage (6) rotatably connected to the center of the positioning component (4) and clamping components (7) rotatably and equidistantly arranged on both sides of the linkage (6); the linkage (6) and the clamping components (7) are perpendicular to each other and form a quadrilateral structure; a clamping space (8) is formed between the clamping components (7); the clamping components (7) move under the action of external force so that the quadrilateral structure composed of the linkage (6) and the clamping components (7) deforms, thereby reducing the straight distance between the clamping components (7) so that the clamping components (7) are clamped and fixed to the external round tube.

2. A round pipe drilling fixture according to claim 1, characterized in that: The connecting sleeve (2) includes a connecting left sleeve (201) and a connecting right sleeve (202). The connecting left sleeve (201) and the connecting right sleeve (202) are respectively provided with ear plates (203); bolts (204) are passed through the ear plates (203) to fix the connecting left sleeve (201) and the connecting right sleeve (202) on the handheld electric drill (1).

3. A round pipe drilling fixture according to claim 2, characterized in that: The left connecting sleeve (201) and the right connecting sleeve (202) are respectively provided with connecting blocks (9), and the line connecting the connecting rods (3) on the left connecting sleeve (201) and the right connecting sleeve (202) intersects the axis of the handheld electric drill (1); the connecting rods (3) are fixedly connected to the connecting blocks (9).

4. A round pipe drilling fixture according to claim 3, characterized in that: The telescopic part (5) includes a telescopic rod (501) that is slidably connected to the connecting rod (3) and a telescopic spring (502) sleeved on the telescopic rod (501); a fixed rod (10) is provided at one end of the telescopic rod (501) away from the connecting rod (3); the two ends of the telescopic spring (502) are fixedly connected to the connecting rod (3) and the fixed rod (10) respectively.

5. A round pipe drilling fixture according to claim 4, characterized in that: The positioning component (4) includes a positioning plate (401); the center of the positioning plate (401) is provided with a positioning hole (402); the positioning hole (402) is opposite to the axis of the handheld electric drill (1); the fixing rod (10) is perpendicular to the positioning plate (401) and fixedly connected.

6. A round pipe drilling fixture according to claim 5, characterized in that: The linkage component (6) includes a linkage rod (601); the linkage rod (601) is located at both ends of the positioning plate (401), and the middle part of the linkage rod (601) is rotatably connected to the positioning plate (401).

7. A round pipe drilling fixture according to claim 6, characterized in that: The clamping member (7) includes a left clamping plate (701) and a right clamping plate (702) that are rotatably connected to the linkage rod (601); the two ends of the left clamping plate (701) are respectively provided with a first clamping groove (703); the two ends of the right clamping plate (702) are respectively provided with a second clamping groove (704); the two ends of the linkage rod (601) are respectively located in the first clamping groove (703) and the second clamping groove (704).

8. A circular tube drilling and fixing device according to claim 7, characterized in that: Friction pads (18) are provided on the left clamping plate (701) and the right clamping plate (702).

9. A round pipe drilling fixture according to claim 8, characterized in that: The right clamping plate (702) is provided with a locking groove (19); the left clamping plate (701) is provided with a locking rod (20); the locking rod (20) passes through the locking groove (19) and is provided with a locking nut (21).

Images