Cutting positioning device for heating and ventilation pipe

Abstract

The utility model relates to the technical field of heating and ventilation pipes, and discloses a cutting and positioning device for a heating and ventilation pipe, which comprises a shell, a circular ring is arranged in the shell, four arc-shaped grooves distributed circumferentially are arranged on one side of the circular ring, sliding rods are arranged in the arc-shaped grooves, the sliding rods are slidably connected with the circular ring, and the same sides of the four sliding rods are fixedly connected with T-shaped plates. The four T-shaped plates are fixedly connected with non-slip mats, two limiting rods are arranged at the ends, away from the non-slip mats, of the T-shaped plates in a penetrating mode, the T-shaped plates are connected with the limiting rods in a sliding mode, the multiple limiting rods are fixedly connected with the same first gear ring, the two sides of gear teeth on the first gear ring are divided into a bevel edge and a straight edge respectively, and a limiting rack matched with the first gear ring is arranged at the top end of the first gear ring. The two sides of the limiting rack are matched with the bevel edge and the straight edge respectively, and the first gear ring is matched with the limiting rack. The heating and ventilation pipe cutting device is easy to operate, a heating and ventilation pipe can be conveniently positioned and clamped, the heating and ventilation pipe can be rotated in the cutting process, and the cutting work efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heating and ventilation pipes, in particular to a cutting and positioning device for heating and ventilation pipes. Background Technique

[0002] After retrieval, a patent with the Chinese patent authorization number CN218311136U discloses a pipe cutting device for heating and ventilation engineering, including a control structure, a pipe clamping structure, a cutting structure and a positioning structure. The pipe clamping structure is fixed on the top of the control structure, and the positioning structure is fixed on the top of the control structure. The cutting structure includes a fixed frame fixed on the top of the control structure. There is a pipe hole on one side of the fixed frame, and an electric lifting rod is fixed on one side of the fixed frame. The end of the electric lifting rod is fixed with a slide plate, the slide plate is slidably connected to one side of the fixed frame, and a second motor is fixed on one side of the slide plate. The output shaft end of the second motor is fixed with a cutting knife. By directly controlling the operation of the motor through a switch, the device is easier to operate. The pipe clamping structure can ensure that the pipe does not rotate or move horizontally during pipe cutting. By hiding the cutting knife, debris will not splash during cutting, and the debris will fall to the ground from the support plate, and it is ensured that the cutting knife will not hurt the worker.

[0003] The above-mentioned pipe cutting device for heating and ventilation engineering has the following deficiencies: during the cutting process, the heating and ventilation pipe cannot be rotated. When cutting some heating and ventilation pipes with a larger radius, it is necessary to operate multiple times to move two clamping blocks away from each other to release the clamping and fixing of the heating and ventilation pipe, and then rotate the heating and ventilation pipe to adjust the posture of the heating and ventilation pipe before it can be completely cut off, which is very troublesome and affects the work efficiency. Therefore, it is necessary to design a cutting and positioning device for heating and ventilation pipes to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a cutting and positioning device for heating and ventilation pipes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A cutting and positioning device for HVAC pipes, comprising a housing. Inside the housing, there is a circular ring. On one side of the circular ring, there are four arc-shaped grooves distributed circumferentially. Inside the arc-shaped grooves, there are sliding rods which are slidably connected to the circular ring. On the same side of the four sliding rods, there are T-shaped plates fixedly connected. Each of the four T-shaped plates is fixedly connected with an anti-slip pad. At the end of the T-shaped plate away from the anti-slip pad, two limit rods are inserted. The T-shaped plate is slidably connected to the limit rods. A number of the limit rods are fixedly connected to the same first toothed ring. The teeth on the first toothed ring are divided into bevel edges and straight edges on both sides respectively. At the top of the first toothed ring, there is a limit rack adapted to it. The two sides of the limit rack are respectively in contact with the bevel edge and the straight edge. The first toothed ring is adapted to the limit rack. On the outer wall of the housing, there is a first U-shaped bracket. A pull rod is inserted through the first U-shaped bracket. The bottom of the pull rod is fixedly connected with the limit rack. The limit rack is adapted to the first toothed ring. At the top of both ends of the limit rack, there are springs fixedly connected. The top of the springs is fixedly connected to the inner wall of the top of the first U-shaped bracket. Since the technical means of being able to drive the rotation of the HVAC pipe after clamping it is adopted, after the protective pad applies sufficient extrusion force to fix the HVAC pipe, rotating the circular ring can make the anti-slip pad do circular motion, and thus can drive the HVAC pipe to rotate. Then, a cutting machine can be used to cut the HVAC pipe, effectively solving the problem in the background technology that most of the existing devices cannot rotate the HVAC pipe during cutting. When cutting some HVAC pipes with a larger radius, it is necessary to operate multiple times to move two clamping blocks away from each other to release the clamping and fixing of the HVAC pipe, and then rotate the HVAC pipe to adjust its posture before it can be completely cut off, which is very troublesome and affects the work efficiency. Furthermore, the technical effects of simple operation, convenient positioning and clamping of the HVAC pipe, being able to rotate the HVAC pipe during cutting, and effectively improving the cutting work efficiency are achieved.

[0007] As a further solution of the present utility model, on the outer wall of the housing, there is a support plate fixedly connected. On one side of the support plate, there is a motor fixedly connected. The output end of the motor is fixedly connected with a gear. The gear is meshed with a second toothed ring. The second toothed ring is fixedly connected to the outer wall of the circular ring.

[0008] As a further solution of the present utility model, on the inner wall of the housing, there are two sliding blocks fixedly connected. Each of the two sliding blocks is sleeved with the same first slide rail. The first slide rail is slidably connected to the sliding blocks. The first slide rail is fixedly connected to the side of the circular ring away from the arc-shaped grooves.

[0009] As a further solution of the present utility model, on the inner wall of the housing, there are two sleeve plates fixedly connected. Each of the two sleeve plates is inserted with the same second slide rail. The sleeve plates are slidably connected to the second slide rail. The second slide rail is fixedly connected to the first toothed ring.

[0010] As a further solution of the utility model, a second U-shaped frame is fixedly connected to the outer wall of the housing, and an electric lifting rod is fixedly connected to the inner wall of the top of the second U-shaped frame.

[0011] As a further solution of the utility model, the output end of the electric lifting rod is fixedly connected with a fixing plate, and a cutting machine is fixedly connected to the bottom of the fixing plate.

[0012] As a further solution of the utility model, the fixing plate penetrates through the housing, and the fixing plate is slidably connected to the housing.

[0013] The beneficial effects of the utility model are as follows:

[0014] In the utility model: due to the technical means that after clamping the HVAC pipe, it can drive the pipe to rotate, so after the protective pad applies sufficient extrusion force to fix the HVAC pipe, making the ring continue to rotate can make the anti-slip pad do circular motion, which can drive the HVAC pipe to rotate, and then the cutting machine can be used to cut the HVAC pipe. This effectively solves the problem in the background technology that most existing devices cannot rotate the HVAC pipe during the cutting process. When cutting some HVAC pipes with a larger radius, it is necessary to operate multiple times to move the two clamping blocks away from each other to release the clamping and fixing of the HVAC pipe, and then rotate the HVAC pipe to adjust its posture to completely cut it, which is very troublesome and affects the work efficiency. Furthermore, the technical effects of simple operation, convenient positioning and clamping of the HVAC pipe, and the ability to rotate the HVAC pipe during the cutting process, which can effectively improve the cutting work efficiency, are achieved. Description of the Drawings

[0015] Figure 1 It is a three-dimensional structural schematic diagram of a cutting and positioning device for HVAC pipes proposed by the utility model;

[0016] Figure 2 It is a structural schematic diagram of the housing of a cutting and positioning device for HVAC pipes proposed by the utility model;

[0017] Figure 3 It is a partial structural schematic diagram of a cutting and positioning device for HVAC pipes proposed by the utility model;

[0018] Figure 4 It is a structural schematic diagram of the ring of a cutting and positioning device for HVAC pipes proposed by the utility model;

[0019] Figure 5 It is a sectional expanded structural schematic diagram of the second slide rail of a cutting and positioning device for HVAC pipes proposed by the utility model;

[0020] Figure 6 It is an expanded structural schematic diagram of the ring of a cutting and positioning device for HVAC pipes proposed by the utility model.

[0021] In the figure: 1. Outer shell; 2. Ring; 3. Arc-shaped groove; 4. Sliding rod; 5. T-shaped plate; 6. Anti-slip pad; 7. Limit rod; 8. First toothed ring; 9. Limit rack; 10. First U-shaped frame; 11. Spring; 12. Pull rod; 13. Support plate; 14. Motor; 15. Gear; 16. Slide block; 17. First slide rail; 18. Sleeve plate; 19. Second slide rail; 20. Second U-shaped frame; 21. Electric lifting rod; 22. Fixed plate; 23. Cutting machine; 24. Second toothed ring. Detailed implementation manners

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0023] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0024] Refer to Figures 1-6, A cutting and positioning device for heating and ventilation pipes, comprising a housing 1. Inside the housing 1, there is a circular ring 2. On one side of the circular ring 2, there are four arc-shaped grooves 3 distributed in a circular pattern. Inside the arc-shaped grooves 3, there are sliding rods 4. The sliding rods 4 are slidably connected to the circular ring 2. On the same side of the four sliding rods 4, there are T-shaped plates 5 fixedly connected. Each of the four T-shaped plates 5 is fixedly connected with an anti-slip pad 6. At the end of the T-shaped plate 5 away from the anti-slip pad 6, there are two limiting rods 7 passing through. The T-shaped plate 5 is slidably connected to the limiting rods 7. A number of limiting rods 7 are all fixedly connected with the same first toothed ring 8. The teeth on both sides of the first toothed ring 8 are respectively a hypotenuse and a straight edge. At the top of the first toothed ring 8, there is a limiting rack 9 adapted to it. The two sides of the limiting rack 9 are respectively the hypotenuse and the straight edge. The first toothed ring 8 is adapted to the limiting rack 9. On the outer wall of the housing 1, there is a first U-shaped frame 10. A pull rod 12 passes through the first U-shaped frame 10. At the bottom of the pull rod 12, there is a limiting rack 9 fixedly connected. The limiting rack 9 is adapted to the first toothed ring 8. At the top of both ends of the limiting rack 9, there are springs 11 fixedly connected. The top of the springs 11 is fixedly connected to the inner wall of the top of the first U-shaped frame 10. Due to the technical means of being able to drive the rotation of the heating and ventilation pipe after clamping it, so after the protective pad exerts sufficient extrusion force on the heating and ventilation pipe to fix it, rotating the circular ring continuously can make the anti-slip pad do circular motion, and thus can drive the heating and ventilation pipe to rotate, and then a cutting machine can be used to cut the heating and ventilation pipe. This effectively solves the problem in the background technology that most existing devices cannot rotate the heating and ventilation pipe during the cutting process. When cutting some heating and ventilation pipes with a larger radius, it is necessary to operate multiple times to make the two clamping blocks move away from each other to release the clamping and fixing of the heating and ventilation pipe, and then rotate the heating and ventilation pipe to adjust its posture before it can be completely cut off, which is very troublesome and affects the work efficiency. Furthermore, it realizes the technical effects of simple operation, convenient positioning and clamping of the heating and ventilation pipe, being able to rotate the heating and ventilation pipe during the cutting process, and being able to effectively improve the cutting work efficiency.

[0025] In this embodiment, a support plate 13 is fixedly connected to the outer wall of the housing 1. On one side of the support plate 13, there is a motor 14 fixedly connected. The output end of the motor 14 is fixedly connected with a gear 15. The gear 15 is meshed with a second toothed ring 24. The second toothed ring 24 is fixedly connected to the outer wall of the circular ring 2.

[0026] In this embodiment, two sliding blocks 16 are fixedly connected to the inner wall of the housing 1. The same first slide rail 17 is sleeved on both sliding blocks 16. The first slide rail 17 is slidably connected to the sliding blocks 16. The first slide rail 17 is fixedly connected to the side of the circular ring 2 away from the arc-shaped grooves 3.

[0027] In this embodiment, two sleeve plates 18 are fixedly connected to the inner wall of the housing 1. The same second slide rail 19 passes through both sleeve plates 18. The sleeve plates 18 are slidably connected to the second slide rail 19. The second slide rail 19 is fixedly connected to the first toothed ring 8.

[0028] In this embodiment, a second U-shaped frame 20 is fixedly connected to the outer wall of the outer shell 1, and an electric lifting rod 21 is fixedly connected to the inner wall of the top of the second U-shaped frame 20.

[0029] In this embodiment, a fixing plate 22 is fixedly connected to the output end of the electric lifting rod 21, and a cutting machine 23 is fixedly connected to the bottom of the fixing plate 22.

[0030] In this embodiment, the fixing plate 22 passes through the outer shell 1, and the fixing plate 22 is slidably connected to the outer shell 1.

[0031] Working principle: When using this device, place the HVAC pipe at the inner wall of the ring 2. Then start the motor 14, and the output end of the motor 14 will drive the gear 15 to rotate. The gear 15 will drive the second toothed ring 24 to rotate, and the second toothed ring 24 will drive the ring 2 to rotate. The rotation of the ring 2 will drive the first slide rail 17 to rotate along the slider 16, and the ring 2 will not shift during rotation. The rotation of the ring 2 will squeeze the sliding rod 4, and the sliding rod 4 will move along the arc-shaped groove 3. The four sliding rods 4 will move closer to the HVAC pipe. The movement of the sliding rod 4 will drive the T-shaped plate 5 to move. The T-shaped plate 5 will move along the limit rod 7, and the T-shaped plate 5 will not shift during movement. When the ring 2 squeezes the sliding rod 4, due to the elastic force of the spring 11, the limit rack 9 will always mesh with the first toothed ring 8 and provide a restraining force to the first toothed ring 8 to prevent the first toothed ring 8 from rotating, which can also prevent the ring 2 from rotating. The movement of the T-shaped plate 5 will drive the anti-slip pad 6 to move closer to the HVAC pipe until it contacts the pipe, so as to position the HVAC pipe and make the HVAC pipe concentric with the ring 2. By setting four T-shaped plates 5 and anti-slip pads 6, it can adapt to circular and square HVAC pipes, improving the practicability. The HVAC pipe can be clamped and fixed by continuously applying a squeezing force through the anti-slip pad 6. When the anti-slip pad 6 contracts to the limit and the output end of the motor 14 continues to rotate, the squeezing force exerted by the ring 2 on the sliding rod 4 is too large, and the first toothed ring 8 will exert a large enough squeezing force on the limit rack 9. The first toothed ring 8 will squeeze the limit rack 9 to make the limit rack 9 rise, and the limit rack 9 will cause the spring 11 to contract. At this time, the rotation of the ring 2 will drive the sliding rod 4 to make a circular motion, the sliding rod 4 will drive the T-shaped plate 5 to make a circular motion, the T-shaped plate 5 will drive the anti-slip pad 6 to make a circular motion, and the anti-slip pad 6 will drive the HVAC pipe to rotate. The straight edges of the teeth on the limit rack 9 and the first toothed ring 8 are straight-edge to straight-edge, and the first rack 8 will not reverse. At this time, start the cutting machine 23 and extend the output end of the electric lifting rod 21. The output end of the electric lifting rod 21 will drive the fixed plate 22 to descend, and the fixed plate 22 will drive the cutting machine 23 to descend. The cutting blade of the cutting machine 23 can cut the HVAC pipe. When the first toothed ring 8 rotates, it will drive the second slide rail 19 to rotate along the sleeve plate 18, and the first toothed ring 8 will not shift during rotation. After the cutting work is completed, the output end of the electric lifting rod 21 can be retracted, so that the cutting machine 23 can rise away from the HVAC pipe. Reverse the output end of the motor 14, so that the gear 15 can reverse. The gear 15 will drive the first toothed ring 8 to reverse, and the first toothed ring 8 will drive the ring 2 to reverse. The ring 2 will squeeze the sliding rod 4 again to make the sliding rod 4 return to the initial position, so that the anti-slip pad 6 can move away from the HVAC pipe, and the clamping of the HVAC pipe can be stopped. The cut HVAC pipe can be removed, and the work can be continued according to the same steps.

[0032] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made.

[0033] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0034] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A cutting and positioning device for a heating and ventilation pipe, comprising a housing (1), characterized in that, Inside the housing (1), there is a ring (2) provided. On one side of the ring (2), there are four arc-shaped grooves (3) distributed circumferentially. Inside the arc-shaped grooves (3), there are sliding rods (4) which are slidably connected to the ring (2). On the same side of the four sliding rods (4), there are T-shaped plates (5) fixedly connected. Each of the four T-shaped plates (5) is fixedly connected with an anti-slip pad (6). At the end of the T-shaped plate (5) away from the anti-slip pad (6), two limit rods (7) are penetrated. The T-shaped plate (5) is slidably connected to the limit rods (7). A plurality of the limit rods (7) are all fixedly connected with the same first toothed ring (8). The teeth on both sides of the first toothed ring (8) are respectively a bevel edge and a straight edge. At the top of the first toothed ring (8), there is a limit rack (9) adapted thereto. The two sides of the limit rack (9) are respectively the bevel edge and the straight edge. The first toothed ring (8) is adapted to the limit rack (9). On the outer wall of the housing (1), there is a first U-shaped frame (10) fixedly connected. A pull rod (12) is penetrated through the first U-shaped frame (10). At the bottom of the pull rod (12), there is a limit rack (9) fixedly connected. The limit rack (9) is adapted to the first toothed ring (8). At the top of both ends of the limit rack (9), there are springs (11) fixedly connected. The top of the springs (11) is fixedly connected to the inner wall of the top of the first U-shaped frame (10).

2. The cutting and positioning device for HVAC pipes according to claim 1, characterized in that, On the outer wall of the housing (1), there is a support plate (13) fixedly connected. On one side of the support plate (13), there is a motor (14) fixedly connected. The output end of the motor (14) is fixedly connected with a gear (15). The gear (15) is meshed with a second toothed ring (24). The second toothed ring (24) is fixedly connected to the outer wall of the ring (2).

3. The cutting and positioning device for heating and ventilation pipes according to claim 2, characterized in that, On the inner wall of the housing (1), there are two sliders (16) fixedly connected. The two sliders (16) are both sleeved with the same first slide rail (17). The first slide rail (17) is slidably connected to the sliders (16). The first slide rail (17) is fixedly connected to the side of the ring (2) away from the arc-shaped grooves (3).

4. The cutting and positioning device for heating and ventilation pipes according to claim 3, characterized in that, On the inner wall of the housing (1), there are two sleeve plates (18) fixedly connected. The two sleeve plates (18) are both penetrated with the same second slide rail (19). The sleeve plates (18) are slidably connected to the second slide rail (19). The second slide rail (19) is fixedly connected to the first toothed ring (8).

5. The cutting and positioning device for heating and ventilation pipes according to claim 4, characterized in that, On the outer wall of the housing (1), there is a second U-shaped frame (20) fixedly connected. On the inner wall of the top of the second U-shaped frame (20), there is an electric lifting rod (21) fixedly connected.

6. The cutting and positioning device for HVAC pipes according to claim 5, characterized in that, The output end of the electric lifting rod (21) is fixedly connected with a fixing plate (22). At the bottom of the fixing plate (22), there is a cutting machine (23) fixedly connected.

7. The cutting and positioning device for heating and ventilation pipes according to claim 6, wherein The fixing plate (22) penetrates through the housing (1). The fixing plate (22) is slidably connected to the housing (1).

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