Steel pipe cutting device for bridge building

Abstract

The utility model provides a steel pipe cutting device for bridge construction, which comprises a base, a guide rod support and a cutting machine, and the guide rod support is fixedly mounted at the top of the base. The utility model relates to the technical field of steel pipe cutting devices. According to the steel pipe cutting device for the bridge building, by arranging the transmission mechanism, a steel pipe can be placed between two clamping plates, then a motor is started, a first bevel gear is driven to rotate, the first bevel gear can drive a second bevel gear to rotate, and the second bevel gear can drive a threaded rod to rotate around a bearing seat; when the threaded rod rotates, an external thread on the surface of the threaded rod can extrude an internal thread of a threaded hole, so that the two sliding blocks mutually move in a sliding groove, and meanwhile, the two clamping plates are driven to clamp the steel pipe; and meanwhile, the lower pressing plate is just located at the top of the steel pipe, upward deviation of the steel pipe during cutting is avoided, the stability of the steel pipe is improved, and then the cutting effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe cutting devices, in particular to a steel pipe cutting device used for bridge construction. Background Art

[0002] A bridge generally refers to a structure built across rivers, lakes, and seas to allow vehicles and pedestrians to pass smoothly. To adapt to the modern high-speed development of the transportation industry, bridges are also extended to buildings that cross mountain streams, poor geological conditions, or meet other traffic needs to make passage more convenient. During the construction of bridges, steel pipe cutting equipment is required to cut and split the steel pipes so that the length of the steel pipes meets the construction standards.

[0003] Publication number "CN218799475U" provides a steel pipe cutting device for bridge construction, including a platform and a driving motor. A limiting hole is provided on the outer side of the upper surface of the platform, a sliding rod is fixedly connected to the inner wall of the platform, and a return spring is sleeved on the outer surface of the sliding rod. The steel pipe cutting device for bridge construction controls the clamping plate to drive the sliding block to move outward along the outer surface of the sliding rod, thereby effectively adjusting the spacing of the inner side of the clamping plate, and then controls the mutual cooperation between the limiting rod and the limiting hole to achieve the fixation of the steel pipe. Then, the driving motor drives the cutting disc to rotate, and then the staff controls the handle to indirectly drive the cutting disc to cut the steel pipe, thereby achieving the fixation and cutting of steel pipes of various outer diameters, greatly improving the applicability of the device during use and facilitating the use of the staff.

[0004] However, the above device still has the following problems during implementation:

[0005] In the existing technology and the above-mentioned solution, the steel pipe can be clamped from both sides to fix the steel pipe so that the steel pipe will not move during cutting, thereby improving the cutting efficiency. However, considering that the steel pipe is cut by the cutting device, the steel pipe will also be offset upward under the action of cutting, thereby affecting the cutting effect. Utility Model Content

[0006] The purpose of the present utility model is to provide a steel pipe cutting device for bridge construction to solve the problems raised in the above background technology.

[0007] To achieve the above objectives, the present invention provides the following technical solutions:

[0008] A steel pipe cutting device for bridge construction includes a base 1, a guide rod bracket 2 and a cutting machine 3. The guide rod bracket 2 is fixedly mounted on the top of the base 1. The cutting machine 3 is slidably connected to the guide rod bracket 2 via a double-hole sliding sleeve 4. Two sliding grooves 5 are provided on the top of the base 1, and the two sliding grooves 5 are respectively provided on the left and right sides of the guide rod bracket 2; two sliding blocks 6 are slidably connected inside any sliding groove 5, and the tops of the two sliding blocks 6 are fixedly connected to clamping plates 7. Lower pressing plates 8 are provided on the inner sides of the two clamping plates 7. A transmission mechanism is provided inside the sliding groove 5, and an adjustment mechanism is provided on the outer side of the lower pressing plate 8;

[0009] The transmission mechanism includes a motor 9 fixedly connected to the bottom of the base 1, the output end of the motor 9 passes through the interior of the sliding groove 5 and is fixedly connected to a first bevel gear 10, both sides of the first bevel gear 10 are meshed with second bevel gears 11, the second bevel gear 11 is fixed with a threaded rod 12 extending toward the sliding block 6, the outer end of the threaded rod 12 is provided with a bearing seat 26, and is rotatably connected to the inner wall of the sliding groove 5 through the bearing seat 26; the sliding block 6 is provided with a threaded hole 13 for use with the threaded rod 12, so that the rotation of the threaded rod 12 drives the two sliding blocks 6 to move toward or in the opposite direction.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] 1. The utility model is equipped with a transmission mechanism, which can place the steel pipe between the two clamping plates, and then start the motor to drive the first bevel gear to rotate, and the first bevel gear will drive the second bevel gear to rotate, and the second bevel gear will drive the threaded rod to rotate around the bearing seat. When the threaded rod rotates, the external thread on its surface will squeeze the internal thread of the threaded hole, so that the two sliding blocks move toward each other in the sliding groove, and at the same time drive the two clamping plates to clamp the steel pipe. At the same time, the lower pressure plate is just located at the top position of the steel pipe and contacts with it, which limits the top of the steel pipe and prevents the steel pipe from deviating upward during cutting, thereby improving the stability of the steel pipe and thus improving the cutting effect.

[0012] 2. The utility model sets a transmission mechanism, which can be achieved by placing the steel pipe between the two clamping plates, and then starting the motor to drive the first bevel gear to rotate, and the first bevel gear will drive the second bevel gear to rotate, and the second bevel gear will drive the threaded rod to rotate around the bearing seat. When the threaded rod rotates, the external thread on its surface will squeeze the internal thread of the threaded hole, so that the two sliding blocks move toward each other in the sliding groove, and at the same time drive the two clamping plates to clamp the steel pipe. At the same time, the lower pressure plate is just located at the top position of the steel pipe and contacts with it, which limits the top of the steel pipe and prevents the steel pipe from deviating upward during cutting, thereby improving the stability of the steel pipe and thus improving the cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 A perspective view of the main structure of the utility model;

[0015] Figure 3 It is a three-dimensional diagram of the transmission mechanism and adjustment mechanism of the utility model;

[0016] Figure 4 For this utility model Figure 3 A partial enlarged view of point A in the middle;

[0017] Figure 5 It is a three-dimensional diagram of the partial structure of the utility model;

[0018] Figure 6 It is a three-dimensional view of the cutaway shell of the present invention.

[0019] Explanation of the numbers: 1. Base; 2. Guide rod bracket; 3. Cutting machine; 4. Double-hole sliding sleeve; 5. Sliding groove; 6. Sliding block; 7. Clamping plate; 8. Lower pressure plate; 9. Motor; 10. First bevel gear; 11. Second bevel gear; 12. Threaded rod; 13. Threaded hole; 14. Support rod; 15. Limit sleeve; 16. Adjustment groove; 17. Housing; 18. Adjustment rod; 19. Positioning rod; 20. Positioning hole; 21. Thumb screw; 22. Limiting hole; 23. Spring; 24. Guide block; 25. Guide groove; 26. Bearing seat; 27. Rubber pad; 28. Sliding block. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] See also Figures 1-6 , the utility model provides a technical solution:

[0022] Example 1:

[0023] A steel pipe cutting device for bridge construction includes a base 1, a guide rod bracket 2 and a cutting machine 3. The guide rod bracket 2 is fixedly mounted on the top of the base 1. The cutting machine 3 is slidably connected to the guide rod bracket 2 via a double-hole sliding sleeve 4. Two sliding grooves 5 are provided on the top of the base 1, and the two sliding grooves 5 are respectively provided on the left and right sides of the guide rod bracket 2; two sliding blocks 6 are slidably connected inside any sliding groove 5, and the tops of the two sliding blocks 6 are fixedly connected to clamping plates 7. Lower pressing plates 8 are provided on the inner sides of the two clamping plates 7. A transmission mechanism is provided inside the sliding groove 5, and an adjustment mechanism is provided on the outer side of the lower pressing plate 8;

[0024] The transmission mechanism includes a motor 9 fixedly connected to the bottom of the base 1, the output end of the motor 9 passes through the interior of the sliding groove 5 and is fixedly connected to a first bevel gear 10, both sides of the first bevel gear 10 are meshed with second bevel gears 11, the second bevel gear 11 is fixed with a threaded rod 12 extending toward the sliding block 6, the outer end of the threaded rod 12 is provided with a bearing seat 26, and is rotatably connected to the inner wall of the sliding groove 5 through the bearing seat 26; the sliding block 6 is provided with a threaded hole 13 for use with the threaded rod 12, so that the rotation of the threaded rod 12 drives the two sliding blocks 6 to move toward or in the opposite direction.

[0025] The utility model takes into account that when the steel pipe is cut by the cutting device, the steel pipe will also deviate upward under the action of cutting, thereby affecting the cutting effect. Therefore, by setting a transmission mechanism, the steel pipe can be placed between the two clamping plates 7, and then the motor 9 is started to drive the first bevel gear 10 to rotate, and the first bevel gear 10 will drive the second bevel gear 11 to rotate, and the second bevel gear 11 will drive the threaded rod 12 to rotate around the bearing seat 26. When the threaded rod 12 rotates, the external thread on its surface will squeeze the internal thread of the threaded hole 13, so that the two sliding blocks 6 move toward each other in the sliding groove 5, and at the same time drive the two clamping plates 7 to clamp the steel pipe. At the same time, the lower pressure plate 8 is just located at the top position of the steel pipe and contacts it, restricting the top of the steel pipe, preventing the steel pipe from deviating upward during cutting, improving the stability of the steel pipe, and thus improving the cutting effect;

[0026] Solve the problem that when the steel pipe is cut by the cutting device, the steel pipe will deflect upward under the action of cutting, thereby affecting the cutting effect;

[0027] It should be noted that the internal threads of the threaded holes 13 on the two sliding blocks 6 are reverse threads to each other.

[0028] By providing the bearing seat 26 , the threaded rod 12 can be supported, limiting the threaded rod 12 to rotate only along the bearing seat 26 , while improving the smoothness of the threaded rod 12 and other structures during rotation.

[0029] The bottom of the lower pressing plate 8 is provided with an arc-shaped notch that fits the outer contour of the steel pipe, and a rubber pad 27 is fixedly connected to the arc-shaped notch.

[0030] By providing the rubber pad 27, the arc-shaped portion of the lower pressing plate 8 can be in close contact with the top of the steel pipe, further improving the stability of the steel pipe, and the rubber pad 27 can also play a certain buffering role.

[0031] The clamping mechanism can clamp the steel pipe through two clamping plates 7, and at the same time the lower pressure plate 8 limits the steel pipe from deflecting upward, thereby improving the stability of the steel pipe and further improving the cutting effect. However, considering the different diameters of the steel pipes, if the lower pressure plate 8 cannot contact the top of the steel pipe, it cannot prevent the steel pipe from deflecting upward.

[0032] The adjustment mechanism includes a support rod 14 fixedly connected to the outer side of the lower pressure plate 8, the surface of the support rod 14 is slidably connected to the limit sleeve 15, and the clamping plate 7 is provided with an adjustment groove 16 that cooperates with the limit sleeve 15 and extends up and down; the bottom of the limit sleeve 15 is provided with a shell 17, and the interior of the shell 17 is provided with a sliding block 28, the outer side of the sliding block 28 is fixedly connected to the adjustment rod 18, the inner side of the sliding block 28 is fixedly connected to two positioning rods 19, and the outer side of the clamping plate 7 is provided with a positioning hole 20 that cooperates with the positioning rod 19.

[0033] The utility model takes into account the different diameters of steel pipes. If the lower pressure plate 8 cannot contact the top of the steel pipe, it cannot prevent the steel pipe from deviating upward. Therefore, by setting an adjustment mechanism, after the clamping plate 7 clamps the steel pipe, by pulling the adjusting rod 18, the sliding block 28 and the positioning rod 19 are driven to move, so that the positioning rod 19 leaves the inside of the positioning hole 20; then, the height of the limit sleeve 15, the support rod 14 and the lower pressure plate 8 are adjusted along the trajectory of the guide block 24 and the guide groove 25, so that the lower pressure plate 8 is in close contact with the top of the steel pipe; then, the adjusting rod 18 is released, and the elastic force generated by the spring 23 will push the sliding block 28 and the positioning rod 19 to reset, so that the positioning rod 19 enters the corresponding positioning hole 20, completing the restriction of the structures such as the shell 17, the limit sleeve 15, the support rod 14 and the lower pressure plate 8, so that it can effectively press the steel pipe downward, which can effectively prevent the steel pipe from deviating upward during cutting, thereby improving the cutting stability.

[0034] By solving the problem of different diameters of the steel pipes, if the lower pressing plate 8 cannot contact the top of the steel pipe, it cannot prevent the steel pipe from deflecting upward.

[0035] A hand screw 21 is threadedly connected to the top of the limiting sleeve 15 , and a limiting hole 22 for use with the hand screw 21 is opened on the top of the support rod 14 .

[0036] By setting the hand screw 21 and the limiting hole 22, the hand screw 21 can be turned to make the hand screw 21 leave the inside of the limiting hole 22. At this time, the position of the support rod 14 and the lower pressure plate 8 can be adjusted laterally to improve the tightening effect of the lower pressure plate 8.

[0037] A spring 23 is sleeved on the outer periphery of the adjusting rod 18 , and two ends of the spring 23 are respectively abutted against the inner wall surface of the housing 17 and the outer side of the sliding block 28 and fixedly connected.

[0038] When the adjusting rod 18 is released, the spring 23 can push the sliding block 28 and the positioning rod 19 to move through the reaction force generated by the spring 23, thereby resetting the positioning rod 19.

[0039] The top of the limiting sleeve 15 is threadedly connected with a hand screw 21 , and the top of the support rod 14 is provided with a plurality of limiting holes 22 used in conjunction with the hand screw 21 . The limiting holes 22 are arranged in sequence along the extending direction of the support rod 14 .

[0040] Guide blocks 24 are fixedly connected to both sides of the limiting sleeve 15, and a guide groove 25 is formed on the left side wall of the adjustment slot 16 for use with the guide block 24. This can restrict the movement trajectory of the limiting sleeve 15 and other structures, so that they can only slide along the trajectory of the guide block 24 and the guide groove 25, while improving stability during the sliding process.

[0041] Working principle: The user places the steel pipe between the two clamping plates 7, and then starts the motor 9 to drive the first bevel gear 10 to rotate. The first bevel gear 10 will drive the second bevel gear 11 to rotate, and the second bevel gear 11 will drive the threaded rod 12 to rotate around the bearing seat 26. When the threaded rod 12 rotates, the external thread on its surface will squeeze the internal thread of the threaded hole 13, so that the two sliding blocks 6 move toward each other in the sliding groove 5, and at the same time drive the two clamping plates 7 to clamp the steel pipe. At the same time, the lower pressure plate 8 is just located at the top position of the steel pipe and contacts it, limiting the top of the steel pipe to prevent the steel pipe from deviating upward during cutting, thereby improving the stability of the steel pipe and thus improving the cutting effect.

[0042] After the clamping plate 7 clamps the steel pipe, the adjusting rod 18 is pulled to drive the sliding block 28 and the positioning rod 19 to move, so that the positioning rod 19 leaves the inside of the positioning hole 20, and then the height of the limit sleeve 15, the support rod 14 and the lower pressure plate 8 are adjusted along the trajectory of the guide block 24 and the guide groove 25, so that the lower pressure plate 8 is in close contact with the top of the steel pipe. Then, the adjusting rod 18 is released, and the elastic force generated by the spring 23 will push the sliding block 28 and the positioning rod 19 to reset, so that the positioning rod 19 enters the corresponding positioning hole 20, completing the restriction of the structures such as the shell 17, the limit sleeve 15, the support rod 14 and the lower pressure plate 8, so that it can effectively press down the steel pipe, which can effectively avoid upward deviation during cutting of the steel pipe, thereby improving the cutting stability.

[0043] It should be noted that the motor 9 is a device or equipment existing in the prior art, or a device or equipment that can be realized in the prior art, and the specific composition and principle of the power supply of the motor 9 are clear to those skilled in the art, so they are not described in detail.

[0044] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steel pipe cutting device for bridge construction, characterized in that: The invention comprises a base (1), a guide rod bracket (2) and a cutting machine (3), wherein the guide rod bracket (2) is fixedly mounted on the top of the base (1), and the cutting machine (3) is slidably connected to the guide rod bracket (2) through a double-hole sliding sleeve (4); two sliding grooves (5) are provided on the top of the base (1), and the two sliding grooves (5) are respectively arranged on the left and right sides of the guide rod bracket (2); two sliding blocks (6) are slidably connected inside any sliding groove (5), and the tops of the two sliding blocks (6) are fixedly connected with a clamping plate (7), and a lower pressing plate (8) is provided inside the two clamping plates (7); a transmission mechanism is provided inside the sliding groove (5), and an adjustment mechanism is provided outside the lower pressing plate (8); The transmission mechanism comprises a motor (9) fixedly connected to the bottom of the base (1); the output end of the motor (9) passes through the interior of the sliding groove (5) and is fixedly connected to a first bevel gear (10); both sides of the first bevel gear (10) are meshedly connected to a second bevel gear (11); the second bevel gear (11) is fixed with a threaded rod (12) extending toward the sliding block (6); the outer end of the threaded rod (12) is provided with a bearing seat (26) and is rotatably connected to the inner wall of the sliding groove (5) through the bearing seat (26); the sliding block (6) is provided with a threaded hole (13) used in conjunction with the threaded rod (12), so that the rotation of the threaded rod (12) drives the two sliding blocks (6) to move toward or in opposite directions.

2. The steel pipe cutting device for bridge construction according to claim 1, characterized in that: The adjustment mechanism includes a support rod (14) fixedly connected to the outer side of the lower pressure plate (8), the surface of the support rod (14) is slidably connected to a limit sleeve (15), and an adjustment groove (16) is provided in the clamping plate (7) for use with the limit sleeve (15) and extending up and down; a shell (17) is provided at the bottom of the limit sleeve (15), a sliding block (28) is provided inside the shell (17), an adjusting rod (18) is fixedly connected to the outer side of the sliding block (28), two positioning rods (19) are fixedly connected to the inner side of the sliding block (28), and a positioning hole (20) is provided on the outer side of the clamping plate (7) for use with the positioning rod (19).

3. The steel pipe cutting device for bridge construction according to claim 2, characterized in that: The outer periphery of the regulating rod (18) is sleeved with a spring (23), and the two ends of the spring (23) are respectively abutted against the inner wall surface of the housing (17) and the outer side of the sliding block (28) and are fixedly connected.

4. The steel pipe cutting device for bridge construction according to claim 2, characterized in that: The top of the limiting sleeve (15) is threadedly connected with a hand screw (21), and the top of the support rod (14) is provided with a plurality of limiting holes (22) used in conjunction with the hand screw (21), and the limiting holes (22) are arranged in sequence according to the extension direction of the support rod (14).

5. The steel pipe cutting device for bridge construction according to claim 2, characterized in that: Both sides of the limiting sleeve (15) are fixedly connected with guide blocks (24), and the left side wall of the adjustment slot (16) is provided with a guide slot (25) used in conjunction with the guide block (24).

6. The steel pipe cutting device for bridge construction according to claim 1, characterized in that: The bottom of the lower pressing plate (8) is provided with an arc-shaped notch that fits the outer contour of the steel pipe, and a rubber pad (27) is fixedly connected to the arc-shaped notch.

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