Directly buried heat preservation pipe cutting device

Abstract

The utility model discloses a direct -buried heat -preservation pipe cutting device, including bottom plate and cutting mechanism, the bottom plate side fixedly connected with the link frame away from cutting mechanism, the link frame upper end is provided with the adjusting lever of screw thread connection, the adjusting lever bottom is rotationally connected with the pressing plate through the bearing, and the V -type recess is established to the pressing plate bottom, and the gasket is fixedly connected with the pressing plate bottom in V -type recess department, the extension hole is established to the bottom plate side close to the link frame, and the extension plate is inserted to the extension hole, and the extension plate one side with bottom plate upper end is all fixedly connected with the support strip, and the pulley is rotatably connected in the support strip, and the section of pulley is trapezoidal structure, the utility model discloses through the support of pulley to direct -buried pipe, then adjusting lever and pressing plate provide the limit, and utilize the card frame and dust -proof brush of relative movement simultaneously and block the spark of cutting mechanism cutting direct -buried pipe, cooperate the baffle, can reduce the damage of spark contact heat -preservation layer between the inner tube and outer tube of direct -buried pipe or contact the anticorrosive layer on the outer tube of direct -buried pipe when in the cutting process.

Description

Technical Field

[0001] This utility model relates to the field of insulation board cutting technology, specifically to a direct-buried insulation pipe cutting device. Background Technology

[0002] Direct-buried insulated pipes are a type of pipe fitting consisting of three layers: a working steel pipe, a rigid polyurethane foam insulation layer, and a high-density polyethylene protective sleeve. They are commonly used in urban centralized heating networks, chemical and petroleum transportation, and industrial pipeline systems.

[0003] According to Chinese Patent Publication No. CN222290342U, entitled "A Cutting Device for Direct-Buried Insulated Pipes," the device primarily utilizes a combination of an arc-shaped conveyor channel, clearance holes, a mounting plate, a vertical plate, a first arc-shaped groove, rollers, and an electric push rod to facilitate rapid movement of the direct-buried insulated pipe on the operating table. During operation, the electric push rod is activated, which then moves the vertical plate upwards via the mounting plate. The vertical plate then moves above the arc-shaped conveyor channel through the clearance holes. The operator places one end of the direct-buried insulated pipe onto the first arc-shaped groove and pushes it. With the help of the rollers, the direct-buried insulated pipe can be moved quickly until it reaches the designated position of the cutting mechanism. Then, the pipe is cut... The above method restores the vertical plate to its original position, then brings the buried insulation pipe into contact with the arc-shaped conveyor. This method is simple to operate, changing the traditional pushing method that involves contact with the operating table. Rollers allow for rapid movement, greatly reducing workload and improving efficiency. The combination of a first mounting bracket, a second mounting bracket, a drive cylinder, a pressing plate, and a second arc-shaped groove facilitates the pressing and fixing of both ends of the buried insulation pipe during cutting. After the buried insulation pipe moves to the designated position, the drive cylinder is activated, causing the pressing plate to move downwards, thus pressing and fixing both ends of the buried insulation pipe with the two second arc-shaped grooves. This method is simple to operate and improves the stability of cutting the buried insulation pipe.

[0004] The two pipe fittings are clamped by setting up an operating table and an arc-shaped conveyor belt, and then the end of the direct-buried pipe is cut by a limiting cutting mechanism, so that the connection effect of the direct-buried pipe is better and the labor intensity is reduced.

[0005] However, during the cutting process, the contact between the cutting wheel and the inner tube of the buried pipe will generate sparks. When the sparks come into contact with the insulation layer between the inner and outer tubes of the buried pipe or with the anti-corrosion layer on the outer tube, they will cause damage, which will affect the performance of the buried pipe. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a direct-buried insulated pipe cutting device to extend the service life of direct-buried pipes and reduce the impact of sparks during the cutting process on the direct-buried pipes.

[0007] The technical solution adopted by this utility model to solve the technical problem is: a direct-buried insulated pipe cutting device, including a base plate and a cutting mechanism. A connecting frame is fixedly connected to the side of the base plate away from the cutting mechanism. An adjusting rod is threadedly connected to the upper end of the connecting frame. A pressure plate is rotatably connected to the bottom end of the adjusting rod through a bearing. A V-shaped groove is opened at the bottom end of the pressure plate. A gasket is fixedly connected to the bottom end of the pressure plate at the V-shaped groove. An extension hole is opened on the side of the base plate near the connecting frame. An extension plate is inserted into the extension hole. A support strip is fixedly connected to both the extension plate and the upper side of the base plate. A pulley is rotatably connected to the support strip. The pulley has a trapezoidal cross-section. A first groove is opened at the center of the upper end of the base plate. A first motor is fixedly connected to the side of the base plate at the first groove. A bidirectional screw is fixedly connected to the output end of the first motor. A retaining frame is threadedly connected to both sides of the bidirectional screw. A V-shaped recess is opened on the opposite side of the two retaining frames. A dust-blocking brush is fixedly connected to the V-shaped recess.

[0008] As a preferred technical solution of this utility model, the extension plate is provided with connecting holes evenly spaced, and a positioning rod is inserted into the connecting hole. The positioning rod is threadedly connected to the connecting plate, and the connecting plate is fixedly connected to one side of the base plate. By setting the connecting plate and the positioning rod, the extension length of the extension plate can be easily adjusted, thereby facilitating the provision of support for the direct-buried pipe.

[0009] As a preferred technical solution of this utility model, a support plate is fixedly connected to the bottom end of the extension plate, and a support wheel is rotatably connected inside the support plate. By setting the support plate and the support wheel, the length of the extension plate can be easily adjusted.

[0010] As a preferred technical solution of this utility model, arc-shaped plates are inserted into both sides of the card frame. The arc-shaped plates are located on the upper side of the bidirectional screw and are fixedly connected in the first groove. By setting the arc-shaped plates, it is easy to block cutting debris.

[0011] As a preferred technical solution of this utility model, a second groove is provided on the upper side of the card frame, and a slider is slidably connected in the second groove. A connecting rod is fixedly connected to the upper end of the slider, and a baffle is fixedly connected to the upper end of the two connecting rods. The baffle is close to the connecting frame. By setting the slider and the baffle, a blockage can be provided on the upper side of the buried pipe, which can further reduce the contact of the buried pipe with cutting debris.

[0012] This utility model has the following advantages: the pulley provides support for the buried pipe, and the adjusting rod and pressure plate provide limit. At the same time, the relatively movable clamping frame and dust brush block the sparks of the cutting mechanism cutting the buried pipe. With the baffle, the damage caused by the sparks contacting the insulation layer between the inner and outer pipes of the buried pipe or the anti-corrosion layer on the outer pipe of the buried pipe can be reduced during the cutting process. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of a direct-buried insulated pipe cutting device according to a preferred embodiment of the present invention; Figure 2 This is a side sectional view of a cutting device for a direct-buried insulated pipe according to a preferred embodiment of the present invention. Figure 3 This is a side sectional view of the frame structure of a direct-buried insulated pipe cutting device according to a preferred embodiment of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Base plate; 2. Cutting mechanism; 3. Connecting frame; 4. Adjusting rod; 5. Pressure plate; 6. Extension hole; 7. Extension plate; 8. Support bar; 9. Pulley; 10. First groove; 11. Bidirectional screw; 12. Clip frame; 13. Dust baffle; 14. Connecting plate; 15. Positioning rod; 16. Support wheel; 17. Arc plate; 18. Second groove; 19. Slider; 20. Connecting rod; 21. Baffle. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Please refer to the following: Figure 1-3The device for cutting a direct-buried insulated pipe includes a base plate 1 and a cutting mechanism 2. The cutting mechanism 2 consists of a transverse moving mechanism, a longitudinal moving mechanism, and a depth moving mechanism, which can cause the cutting wheel to cut the direct-buried pipe. A connecting frame 3 is fixedly connected to the side of the base plate 1 away from the cutting mechanism 2. An adjusting rod 4 is threadedly connected to the upper end of the connecting frame 3. A pressure plate 5 is rotatably connected to the bottom end of the adjusting rod 4 through a bearing. Rotating the adjusting rod 4 can cause the pressure plate 5 to move down, so that the gasket contacts the direct-buried pipe. This, in conjunction with the pulley 9, can adjust and limit the position of the direct-buried pipe. A V-shaped groove is opened at the bottom end of the pressure plate 5, and a gasket made of rubber is fixedly connected to the bottom end of the pressure plate 5 at the V-shaped groove. An extension hole 6 is opened on the side of the base plate 1 near the connecting frame 3, and an extension plate 7 is inserted into the extension hole 6. The extension plate 7 is fixed to the upper side of the base plate 1. A support bar 8 is connected, and a pulley 9 is rotatably connected inside the support bar 8. The pulley 9 has a trapezoidal cross-section and a frustum-shaped structure. The smaller circles of the two pulleys 9 are arranged opposite each other to support the buried pipe and facilitate its movement. A first groove 10 is provided at the center of the upper end of the base plate 1. A first motor is fixedly connected to one side of the base plate 1 at the first groove 10. The first motor drives the bidirectional screw 11 to rotate, which enables the two clamping frames 12 to move relative to each other and limit the buried pipe. The output end of the first motor is fixedly connected to the bidirectional screw 11. Clamping frames 12 are threadedly connected to both sides of the bidirectional screw 11. A V-shaped recess is provided on the opposite side of the two clamping frames 12. A dust-blocking brush 13 is fixedly connected in the V-shaped recess. The dust-blocking brush 13 is used to seal the gap between the clamping frame 12 and the buried pipe, thereby providing a blocking effect.

[0017] The extension plate 7 has evenly spaced connecting holes, and a positioning rod 15 is inserted into the connecting holes. The positioning rod 15 is threadedly connected to a connecting plate 14, which is fixedly connected to one side of the base plate 1. By setting the connecting plate 14 and the positioning rod 15, the extension plate 7 can be limited.

[0018] The extension plate 7 is fixedly connected to a support plate at its bottom end, and a support wheel 16 is rotatably connected inside the support plate. By setting the support wheel 16, support can be provided on the side of the extension plate 7 away from the bottom plate 1, thereby improving the stability of the pulley 9 supporting the buried pipe and facilitating the adjustment of the cutting position of the buried pipe end.

[0019] Among them, arc-shaped plates 17 are inserted into both sides of the card frame 12. The arc-shaped plates 17 are located on the upper side of the bidirectional screw 11 and are fixedly connected in the first groove 10. By setting the arc-shaped plates 17, a blockage can be provided on the upper side of the bidirectional screw 11, reducing the contact of cutting debris with the bidirectional screw 11.

[0020] The card frame 12 has a second groove 18 on its upper side. A slider 19 is slidably connected in the second groove 18. A connecting rod 20 is fixedly connected to the upper end of the slider 19. A baffle 21 is fixedly connected to the upper end of the two connecting rods 20. The baffle 21 is close to the connecting frame 3. By setting the slider 19, the connecting rod 20 and the baffle 21, it is possible to block the debris falling from the upper side.

[0021] Working principle: The end of the buried pipe to be cut is placed on the pulley 9 by hoisting, and then moved along the inclined surface of the two pulleys 9. Then, the adjusting rod 4 drives the pressure plate 5 to press down, so that the position of the inner pipe of the buried pipe to be cut corresponds to the cutting mechanism 2. Then, the first motor drives the bidirectional screw 11 to rotate, and the clamping frame 12 moves relative to it. The V-shaped groove of the clamping frame 12 and the dust brush 13 both contact the side of the buried pipe. Then, the baffle 21 is moved to limit the range and prevent the cutting sparks from contacting the insulation layer between the inner and outer pipes of the buried pipe or the anti-corrosion layer on the outer pipe, thus reducing damage.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0023] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A cutting device for direct-buried insulated pipes, comprising a base plate (1) and a cutting mechanism (2), characterized in that, A connecting frame (3) is fixedly connected to the side of the base plate (1) away from the cutting mechanism (2). An adjusting rod (4) is threadedly connected to the upper end of the connecting frame (3). A pressure plate (5) is rotatably connected to the bottom end of the adjusting rod (4) via a bearing. A V-shaped groove is provided at the bottom end of the pressure plate (5). A gasket is fixedly connected to the bottom end of the pressure plate (5) at the V-shaped groove. An extension hole (6) is provided on the side of the base plate (1) near the connecting frame (3). An extension plate (7) is inserted into the extension hole (6). The extension plate (7) is fixedly connected to the upper end of the base plate (1) on both sides. A support bar (8) is rotatably connected to a pulley (9). The pulley (9) has a trapezoidal cross-section. A first groove (10) is provided at the center of the upper end of the base plate (1). A first motor is fixedly connected to one side of the base plate (1) located in the first groove (10). A bidirectional screw (11) is fixedly connected to the output end of the first motor. A retaining frame (12) is threaded on both sides of the bidirectional screw (11). A V-shaped recess is provided on the opposite side of the two retaining frames (12). A dust brush (13) is fixedly connected in the V-shaped recess.

2. The direct-buried insulated pipe cutting device as described in claim 1, characterized in that, The extension plate (7) is provided with connecting holes evenly spaced. A positioning rod (15) is inserted into the connecting hole. The positioning rod (15) is threadedly connected to a connecting plate (14). The connecting plate (14) is fixedly connected to one side of the base plate (1).

3. The direct-buried insulated pipe cutting device as described in claim 2, characterized in that, The bottom end of the extension plate (7) is fixedly connected to a support plate, and a support wheel (16) is rotatably connected inside the support plate.

4. The direct-buried insulated pipe cutting device as described in claim 1, characterized in that, Arc plates (17) are inserted into both sides of the card frame (12). The arc plates (17) are located on the upper side of the bidirectional screw (11) and are fixedly connected in the first groove (10).

5. The direct-buried insulated pipe cutting device as described in claim 4, characterized in that, The card frame (12) has a second groove (18) on its upper side. A slider (19) is slidably connected in the second groove (18). A connecting rod (20) is fixedly connected to the upper end of the slider (19). A baffle (21) is fixedly connected to the upper end of the two connecting rods (20). The baffle (21) is close to the connecting frame (3).

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