A gantry cutter device for PE gas pipe

Abstract

The utility model relates to a gantry cutter device for PE gas pipe belongs to gas pipeline cutting technical field. Including the positioning board, the inside of support frame passes through operating screw rod movable installation has the tool rest, the inside fixed mounting of tool rest has cutting blade, the positioning board is long strip rectangle body, the ear plate is symmetrically set up in the both ends of positioning board, the positioning board is detachable type connection through ear plate and locking bolt and support frame, the positioning lug is fixed on the positioning board between ear plate, the positioning lug is fixed on locking screw rod, the locking screw rod is slidably sleeved with the compression plate, the one end of compression plate is fixed with the sliding plate, the sliding plate is connected with the support frame and is slidably connected, the locking nut is screw -threaded installed on the locking screw rod top of compression plate, and the locking nut is used for realizing locking to compression plate. The gantry cutter device effectively reduces the artificial cost, improves the stability when gantry cutter cutting, guarantees the cutout smooth of PE gas pipe, solves the problem that manual hand holds support frame and has certain security hidden danger in the cutting process.

Description

Technical Field

[0001] This utility model relates to a gantry cutter device for PE gas pipes, belonging to the field of gas pipeline cutting technology. Background Technology

[0002] PE gas pipes are gas transmission pipes made of polyethylene. During the repair or installation of PE gas pipes, a gantry cutter is often used to cut the pipes, with diameters ranging from 90-250mm, to the appropriate length before installation. A typical gantry cutter includes a base, support frame, cutter holder, operating screw, and cutting blades (see attached diagram). Figure 5 The base and support frame are detachably connected. A blade holder is slidably installed inside the support frame. A cutting blade is fixed on the blade holder. An operating screw is movably installed on the blade holder. The operating screw is threadedly connected to the support frame. In use, the base provides support to the bottom of the PE gas pipe. Then, the screw is rotated, and the screw pushes the blade holder to slide down along the support frame, thereby cutting the PE gas pipe through the blade on the blade holder.

[0003] Although the gantry cutter can cut PE gas pipes, in actual operation, it requires two operators to work together. One operator needs to hold the support frame with both hands to prevent the gantry cutter from tipping over during cutting, which would result in an uneven cut. The other operator is responsible for turning the screw to cut the PE gas pipe. This two-operator approach not only incurs high labor costs but also poses certain safety hazards due to the operator manually holding the support frame during the cutting process. Therefore, it is necessary to improve the design. Summary of the Invention

[0004] The purpose of this utility model is to provide a gantry cutter device for PE gas pipes that effectively reduces labor costs, improves the stability of gantry cutter cutting, ensures a smooth cut of PE gas pipe, and solves the safety hazards of manual hand support frame during cutting.

[0005] The technical solution of this utility model is: A gantry cutter device for PE gas pipes includes a positioning plate, a clamping plate, a support frame, a cutter holder, and a cutting blade. The cutter holder is movably mounted on the inner side of the support frame via an operating screw, and the cutting blade is fixedly mounted on the inner side of the cutter holder. The positioning plate is a long rectangular body with ear plates symmetrically arranged at both ends. The positioning plate is detachably connected to the support frame via the ear plates and locking bolts. The device is characterized by: positioning protrusions fixedly mounted on the positioning plate between the ear plates; a lower limit groove with a "V"-shaped cross-section is provided at the center of the positioning protrusions; bosses are respectively provided on the positioning protrusions on both sides of the lower limit groove; locking screws are fixedly mounted on the bosses; a clamping plate is slidably fitted onto the locking screws; a sliding plate is fixedly mounted on one end of the clamping plate; the sliding plate is slidably connected to the support frame; and a locking nut is threaded onto the locking screw above the clamping plate to lock the clamping plate, thereby clamping the PE gas pipe between the clamping plate and the positioning protrusions.

[0006] The clamping plate is a rectangular plate, and an upper limit groove with a "V" shaped cross section is provided below the clamping plate. The upper limit groove and the lower limit groove are provided accordingly. A sliding hole is provided on the clamping plate corresponding to the locking screw, and the sliding hole and the locking screw are fitted together.

[0007] The slide plate is symmetrically equipped with sliders, which are dovetail-shaped. The support frame corresponding to the slider is provided with a groove, and the slider and the groove are slidably connected.

[0008] Limiting posts are symmetrically arranged at the ends of the tool holder.

[0009] The tool holder has guide grooves on both sides, and guide rails are provided on the support frame corresponding to the guide grooves. The guide rails and guide grooves are slidably connected.

[0010] The cutting blade is rectangular, and the middle area of ​​the cutting edge is pointed.

[0011] The advantages of this utility model compared with the prior art are as follows: The gantry cutter device for PE gas pipes limits the PE gas pipe through the lower limit groove of the positioning protrusion. The support frame and positioning plate are pre-locked by the locking bolt. The support frame and positioning plate are adjusted so that the cutting blade is aligned with the cutting mark line of the PE gas pipe. After the cutting blade is aligned with the cutting mark line, the locking bolt is tightened. The slider of the first clamping plate is slidably engaged with the groove of the support frame. As the clamping plate slides down the support frame, the locking screw on the clamping plate passes through the sliding hole until the upper limit groove of the clamping plate contacts the PE gas pipe. At this point, the operator installs the locking nut threaded onto the locking screw, which presses down and locks the clamping plate. The above steps are repeated to lock the second clamping plate with the locking nut as well. This clamps the clamping plate and the positioning protrusion against the PE gas pipe, preventing the gantry cutter device from tilting forward or backward. This allows the support frame to sit stably on the PE gas pipe without manual support. The operator can then start rotating the operating screw to drive the cutting blade downward to cut the PE gas pipe. This gantry cutter device effectively reduces labor costs, improves the stability of the gantry cutter during cutting, ensures a smooth cut on the PE gas pipe, and solves the safety hazards associated with manually holding the support frame during cutting. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the cutting PE gas pipe according to the present invention; Figure 2 for Figure 1 A schematic diagram of the side view structure; Figure 3 This is a three-dimensional structural diagram of the support frame, the tool holder, and the cutting blade in this utility model; Figure 4 This is a schematic diagram of the positioning plate, positioning protrusion, and locking screw in this utility model; Figure 5 This is a three-dimensional structural diagram of an existing gantry cutter in the background art.

[0013] In the diagram: 1. Positioning plate; 2. Pressing plate; 3. Support frame; 4. Tool holder; 5. Operating screw; 6. Cutting blade; 7. Limiting post; 8. PE gas pipe; 9. Guide rail; 10. Assembly hole; 11. Clearance hole; 12. Limiting block; 13. Ear plate; 14. Locking bolt; 15. Positioning protrusion; 16. Lower limit groove; 17. Boss; 18. Locking screw; 19. Upper limit groove; 20. Slide plate; 21. Slider; 22. Slide groove; 23. Locking nut; 24. Base. Detailed Implementation

[0014] As attached Figure 1-5 As shown The gantry cutter device for PE gas pipes includes a positioning plate 1, a clamping plate 2, a support frame 3, a cutter holder 4, a screw, and a cutting blade 6. The support frame 3 has an "n" shaped cross-section. An operating screw 5 is threaded onto the support frame 3. The cutter holder 4 is movably installed inside the support frame 3 below the operating screw 5. Guide grooves are provided on both sides of the cutter holder 4. Guide rails 9 are provided on the support frame 3 corresponding to the guide grooves. The guide rails 9 are slidably connected to the guide grooves. In use, the cutter holder 4 moves vertically downward inside the support frame 3 by cooperating with the guide rails 9 and the guide grooves.

[0015] The tool holder 4 has an "n"-shaped cross-section. A mounting hole 10 is provided at the top of the tool holder 4. A clearance hole 11 is provided on the end face of the tool holder 4 corresponding to the mounting hole 10. The clearance hole 11 has a rectangular cross-section and communicates with the mounting hole 10. The length of the clearance hole 11 is greater than the diameter of the mounting hole 10. The purpose of the clearance hole 11 is to facilitate the installation of the limiting block 12. One end of the operating screw 5 extends through the mounting hole 10 into the clearance hole 11. A limiting block 12 is fitted onto the operating screw 5 extending into the clearance hole 11. Positioning block 12 is a circular ring with a bolt threaded on its circumference. The bolt passes through the operating screw 5. In use, the bolt connects the positioning block 12 and the operating screw 5 to form a whole. Since the operating screw 5 fits into the mounting hole 10, the operating screw 5 and the positioning block 12 are movably connected to the tool holder 4. The operating screw 5 and the positioning block 12 can rotate relative to the tool holder 4. The operating screw 5 cooperates with the support frame 3 to control the tool holder 4 to move up and down along the support frame 3.

[0016] A cutting blade 6 is fixedly installed on the inner side of the blade holder 4. The cutting blade 6 is rectangular, and the middle area of ​​the blade is pointed. The purpose of this design is to effectively improve the piercing ability of the blade by using the pointed blade, thereby making it easier to cut the PE gas pipe 8.

[0017] Limiting posts 7 are symmetrically arranged at the ends of the tool holder 4. The length of the limiting posts 7 is greater than the tip of the blade. During use, the limiting posts 7 limit the tool holder 4, preventing the blade tip from moving excessively downward after cutting, and effectively preventing the blade tip from contacting the support plate and causing blade damage.

[0018] The positioning plate 1 is a long rectangular body. The two ends of the positioning plate 1 are symmetrically fixed with ear plates 13. The positioning plate 1 is detachably connected to the support frame 3 through the ear plates 13 and locking bolts 14. In use, the gantry cutter device can be easily mounted on the PE gas pipe 8 by detachably connecting the positioning plate 1 to the support frame 3.

[0019] A positioning protrusion 15 is fixedly installed on the positioning plate 1 between the ear plates 13. A lower limit groove 16 with a "V" shaped cross section is provided at the center of the positioning protrusion 15. A boss 17 is provided on the positioning protrusion 15 on both sides of the lower limit groove 16. A locking screw 18 is fixedly installed on the boss 17. The distance between the two locking screws 18 on the positioning protrusion 15 is greater than 250mm. A pressure plate 2 is slidably fitted on the locking screw 18. The pressure plate 2 is a rectangular plate. An upper limit groove 19 with a "V" shaped cross section is provided below the pressure plate 2. The upper limit groove 19 is corresponding to the lower limit groove 16. A sliding hole is provided on the pressure plate 2 corresponding to the locking screw 18. The sliding hole and the locking screw 18 are fitted together.

[0020] A sliding plate 20 is fixedly installed on one end of the clamping plate 2. Slider 21 is symmetrically arranged on the sliding plate 20. The slider 21 is dovetail shaped. The support frame 3 corresponding to the slider 21 is provided with a groove 22. One end of the groove 22 is provided with an opening. The slider 21 and the groove 22 are slidably connected. The sliding plate 20 and the support frame 3 are slidably connected. In use, the clamping plate 2 can be stably slid downward by the cooperation of the slider 21 and the groove 22.

[0021] A locking nut 23 is threaded onto the locking screw 18 above the pressure plate 2. The locking nut 23 is used to lock the pressure plate 2 so that the pressure plate 2 and the positioning protrusion 15 clamp the PE gas pipe 8.

[0022] When using the gantry cutter device for PE gas pipes, first measure the length of the PE gas pipe 8 to be cut with a tape measure, then mark the cutting line on the PE gas pipe 8 with a marker. Next, place the PE gas pipe 8 to be cut on the positioning plate 1, with the positioning plate 1 corresponding to the cutting line of the PE gas pipe 8. The lower limit groove 16 of the positioning protrusion 15 limits the PE gas pipe 8. Then, the support frame 3 and the positioning plate 1 are pre-locked by the locking bolt 14. Adjust the support frame 3 and the positioning plate 1 so that the cutting blade 6 is aligned with the cutting line of the PE gas pipe 8. After the cutting blade 6 is aligned with the cutting line, tighten the locking bolt 14.

[0023] The slider 21 of the first clamping plate 2 is slidably engaged with the slide groove 22 of the support frame 3. As the clamping plate 2 slides down along the support frame 3, the locking screw 18 on the clamping plate 2 passes through the slide hole of the clamping plate 2 until the upper limit groove 19 of the clamping plate 2 contacts the PE gas pipe 8. At this time, the operator threaded the locking nut 23 onto the locking screw 18. The locking nut 23 presses down and locks the clamping plate 2. The above steps are repeated to lock the second clamping plate 2 with the locking nut 23 as well. This makes the clamping plate 2 and the positioning protrusion 15 clamp the PE gas pipe 8, preventing the gantry cutter device from tilting back and forth. This allows the support frame 3 to sit stably on the PE gas pipe 8 without manual support. After the above preparations are completed, the operator can start to rotate the operating screw 5 to drive the cutting blade 6 to move downward to cut the PE gas pipe 8. After the cutting is completed, the gantry cutter device is disassembled.

[0024] Compared with existing gantry cutters, this gantry cutter device effectively reduces labor costs. Compared with the base 24 of existing gantry cutters, the positioning protrusion 15 of this gantry cutter device avoids the problem of existing gantry cutters easily tipping over, further ensuring the stability of the gantry cutter during cutting and the flatness of the cut of the PE gas pipe 8. At the same time, it solves the problem of certain safety hazards caused by manually holding the support frame 3 during the cutting process.

Claims

1. A gantry cutter device for PE gas pipes, comprising a positioning plate (1), a clamping plate (2), a support frame (3), a cutter holder (4), and a cutting blade (6), wherein the cutter holder (4) is movably mounted on the inner side of the support frame (3) via an operating screw (5), and the cutting blade (6) is fixedly mounted on the inner side of the cutter holder (4), the positioning plate (1) is a long rectangular body, and ear plates (13) are symmetrically arranged at both ends of the positioning plate (1), and the positioning plate (1) is detachably connected to the support frame (3) via the ear plates (13) and locking bolts (14), characterized in that: A positioning protrusion (15) is fixedly mounted on the positioning plate (1) between the ear plates (13). A lower limit groove (16) with a "V" shaped cross section is provided at the center of the positioning protrusion (15). A boss (17) is provided on the positioning protrusion (15) on both sides of the lower limit groove (16). A locking screw (18) is fixedly mounted on the boss (17). A pressure plate (2) is slidably mounted on the locking screw (18). A sliding plate (20) is fixedly mounted on one end of the pressure plate (2). The sliding plate (20) is slidably connected to the support frame (3). A locking nut (23) is threaded on the locking screw (18) above the pressure plate (2). The locking nut (23) is used to lock the pressure plate (2) so that the pressure plate (2) and the positioning protrusion (15) clamp the PE gas pipe (8).

2. The gantry cutter device for PE gas pipes according to claim 1, characterized in that: The clamping plate (2) is a rectangular plate. The clamping plate (2) has an upper limit groove (19) with a "V" shaped cross section at the bottom. The upper limit groove (19) and the lower limit groove (16) are respectively provided. The clamping plate (2) corresponding to the locking screw (18) has a sliding hole. The sliding hole and the locking screw (18) are fitted together.

3. A gantry cutter device for PE gas pipes according to claim 1, characterized in that: The slide plate (20) is symmetrically provided with sliders (21), which are in the shape of a swallowtail. The support frame (3) corresponding to the slider (21) is provided with a groove (22), and the slider (21) and the groove (22) are slidably connected.

4. A gantry cutter device for PE gas pipes according to claim 1, characterized in that: Limiting posts (7) are symmetrically arranged at the ends of the tool holder (4).

5. A gantry cutter device for PE gas pipes according to claim 1, characterized in that: The tool holder (4) is provided with guide grooves on both sides, and the support frame (3) corresponding to the guide groove is provided with guide rail (9), and the guide rail (9) is slidably connected with the guide groove.

6. A gantry cutter device for PE gas pipes according to claim 1, characterized in that: The cutting blade (6) is rectangular, and the middle area of ​​the cutting edge of the cutting blade (6) is pointed.

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