Portable PVC pipe annular cutting tool

Abstract

The utility model relates to an underground drilling and hole sealing pipe cutting tool, in particular to a portable PVC pipe annular cutting tool. Comprising a cutting head, an annular cutting kit, a tooth cone bearing assembly, a cutting blade fixing device and a cutting blade fixing pressing plate. The cutting head comprises a middle connecting part, and the middle connecting part is connected with a cutting blade; the annular cutting suite comprises a suite sleeve, one end of the suite sleeve is open, the other end of the suite sleeve is provided with a baffle, the middle of the baffle is fixedly connected with a hollow hexagonal buckle pin shaft, and the outer wall of one side of the suite sleeve is provided with a fixed base extending into the suite sleeve; the tooth cone bearing assembly comprises a tooth cone bearing, the outer side of the tooth cone bearing is sleeved with an outer ring, a clamping block is welded to the outer ring of the bearing, and an inner ring of the bearing is a hexagonal groove. The fixing bolts can be adjusted according to real-time conditions, so that the cutting blades are in good contact with the outer wall of the PVC pipe, effective cutting is guaranteed, the PVC pipe cutting device is not limited by the environment during use, trouble and labor are saved during use, and the PVC pipe cutting device has high convenience.

Description

Technical Field

[0001] The utility model relates to a downhole drilling and sealing pipe cutting tool, in particular to a portable PVC pipe annular cutting tool. Background Art

[0002] At present, Φ75mm PVC pipes are used for drilling, sealing and grid connection in underground coal mines. When the tunnel is expanded and reused or there are exposed PVC pipes that need to be cut, the cutting space is limited due to factors such as the stress deformation of the coal body on the side of the tunnel, making it impossible to directly use common tools such as saw bows and cutters to cut the PVC pipes. Summary of the invention

[0003] The utility model provides a portable PVC pipe annular cutting tool to solve the technical problem that the exposed PVC pipe cannot be cut under the condition of restricted environment.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a portable PVC pipe annular cutting tool, including a cutting head, an annular cutting kit, a tooth cone bearing assembly, a cutting blade fixing device and a cutting blade fixing pressure plate;

[0005] The cutting head comprises an intermediate connecting portion, the intermediate connecting portion is connected to a cutting blade, and both the intermediate connecting portion and the cutting blade are provided with through holes;

[0006] The annular cutting kit comprises a kit sleeve, one end of the kit sleeve is open, and the other end is provided with a baffle, a hollow hexagonal buckle pin is fixedly connected to the middle of the baffle, one end of the buckle pin is located inside the kit sleeve, and the other end is located outside the kit sleeve, and a retractable elastic steel ball is provided on both sides of one end of the buckle pin located inside the kit sleeve; a fixed base extending into the inside of the kit sleeve is provided on the outer wall of the kit sleeve away from the baffle, and an internal thread is provided inside the fixed base;

[0007] The gear cone bearing assembly comprises a gear cone bearing, an outer ring is sleeved on the outer side of the gear cone bearing, a plurality of thread teeth evenly distributed along the axial direction are processed on the surface of the outer ring, a clamping block is welded on the outer ring of the bearing, and the inner ring of the bearing is a hexagonal groove, and steel ball grooves matching the elastic steel balls are left at symmetrical ends of the hexagonal groove;

[0008] The cutting blade fixing device comprises two fixing bolts and a high-strength spring sleeved on the outside of the fixing bolts;

[0009] The cutting blade fixing plate comprises a cutting blade fixing shaft, and fixing bolt pressing plates are respectively fixedly connected to both ends of the cutting blade fixing shaft, and a through hole for the fixing bolt to pass through is formed on the fixing bolt pressing plate.

[0010] Working principle and process: Use a wrench to first screw the cone bearing assembly into the PVC pipe to be cut for fixing, pass the cutting disc fixing pin through the middle connection part of the cutting head, and then pass the fixing bolt through the fixing bolt pressure plate, and then set the high-strength spring sleeve on the outside of the fixing bolt from the lower end, screw the fixing bolt to the cutting disc fixing base on the outer wall side of the annular cutting kit, and adjust the distance between the cutting disc and the inner wall of the annular cutting kit. Insert the cone bearing assembly and the connected PVC pipe into the kit sleeve, insert the buckle pin shaft into the hexagonal groove, and connect through the cooperation of the retractable elastic steel ball and steel ball groove, and then use the ratchet wrench port to insert the outer end of the buckle pin shaft, apply force evenly, rotate the wrench handle clockwise, and the kit sleeve will rotate together, so as to realize the cutting operation of the cutting disc cutting the pipe body. During the cutting operation, adjust the fixing bolt in real time to make the cutting disc in good contact with the outer wall of the PVC pipe until the PVC pipe is cut.

[0011] Furthermore, a cutting blade is symmetrically distributed on both ends of the middle connecting portion of the cutting head.

[0012] Furthermore, the cutting blade is made of high-strength alloy iron and is a circular bladed slice with a radius of 5 mm.

[0013] Furthermore, the buckle pin is coaxially arranged with the sleeve of the kit.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model can adjust the fixing bolts according to the real-time situation so that the cutting blade can be in good contact with the outer wall of the PVC pipe to ensure effective cutting. It has high practicality and is easy to carry. It is not restricted by the environment when used. It is troublesome and labor-saving when used. It has great convenience and is worthy of popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the cutting head of the utility model.

[0017] Figure 2 This is a schematic diagram of the structure of the annular cutting kit of the utility model.

[0018] Figure 3 This is a schematic diagram of the structure of the cone bearing assembly of the utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the cutting blade fixing device of the utility model.

[0020] Figure 5 This is a schematic diagram of the cutting blade fixing plate structure of the utility model.

[0021] The following are marked in the figure:

[0022] 11-cutting disc, 12-middle connecting part, 21-kit sleeve, 22-buckle pin, 23-cutting disc fixing base, 31-threaded teeth, 32-block, 33-hexagonal groove, 41-high-strength spring, 42-fixing bolt, 51-fixing bolt pressure plate, 52-cutting disc fixing shaft. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. Example

[0024] like Figure 1-5 As shown, a portable PVC pipe annular cutting tool includes a cutting head, an annular cutting kit, a tooth cone bearing assembly, a cutting blade fixing device and a cutting blade fixing pressure plate;

[0025] The cutting head includes an intermediate connecting portion 12, to which a cutting blade 11 is connected. The cutting blade 11 is circular, thin at the edge and thick in the middle. The intermediate connecting portion 12 is fixed to the center of the cutting blade. Through holes are provided on the intermediate connecting portion 12 and the cutting blade 11 to facilitate the passage of the cutting blade fixing shaft 52.

[0026] The annular cutting kit comprises a kit sleeve 21, one end of the kit sleeve 21 is open, and the other end is provided with a baffle, a hollow hexagonal buckle pin 22 is fixedly connected to the middle of the baffle, one end of the buckle pin 22 is located inside the kit sleeve 21, and the other end is located outside the kit sleeve 21, and a retractable elastic steel ball (which can be embedded in the hexagonal groove 33 in the middle of the bearing) is arranged on both sides of one end of the buckle pin 22 located inside the kit sleeve 21; a fixed base 23 extending into the inside of the kit sleeve 21 is arranged on the outer wall of the kit sleeve 21 away from the baffle, and the fixed base 23 is provided with an internal thread;

[0027] The gear cone bearing assembly includes a gear cone bearing, an outer ring is sleeved on the outside of the gear cone bearing, and a plurality of threaded teeth 31 are processed on the surface of the outer ring and evenly distributed in the axial direction. A clamping block 32 is welded on the outer ring of the bearing, and the gear cone bearing 3 can be fixed on the PVC pipe by screwing the clamping block 32. The inner ring of the bearing is a hexagonal groove 33, and steel ball grooves matching the elastic steel balls are left at both symmetrical ends of the hexagonal groove 33 to facilitate the fixing of the buckle pin 22.

[0028] The cutting blade fixing device includes two fixing bolts 42 and a high-strength spring 41 sleeved on the outside of the fixing bolts 42, and can be fixed on the cutting blade base 23 using the fixing bolts 42; by screwing the fixing bolts 42, the cutting blade 1 can be in closer contact with the PVC pipe;

[0029] The cutting blade fixing plate is cylindrical in the middle and has flat gaskets with holes on both sides. It includes a cutting blade fixing shaft 52. The two ends of the cutting blade fixing shaft 52 are respectively fixed with fixing bolt plates 51. The fixing bolt plates 51 are provided with through holes for the fixing bolts 42 to pass through.

[0030] Furthermore, the cutting blade 11 is made of high-strength alloy iron and is a circular bladed slice with a radius of 5 mm.

[0031] Furthermore, the buckle pin 22 is coaxially arranged with the sleeve 21 .

[0032] Working principle and process: Use a wrench to screw the cone bearing assembly into the PVC pipe to be cut for fixing, pass the cutting blade fixing pin 52 through the middle connection part 12 of the cutting head, and then pass the fixing bolt 42 through the fixing bolt pressure plate 51, and then sleeve the high-strength spring 41 from the lower end on the outside of the fixing bolt 42, screw the fixing bolt 42 to the cutting blade fixing base 23 on the outer wall side of the annular cutting kit 2, and adjust the distance between the cutting blade 11 and the inner wall of the annular cutting kit 2. Insert the cone bearing assembly and the connected PVC pipe into the kit sleeve 21, insert the buckle pin 22 into the hexagonal groove 33, and connect through the cooperation of the retractable elastic steel ball groove, and then use the ratchet wrench port to insert the outer end of the buckle pin 22, apply force evenly, rotate the wrench handle clockwise, and the kit sleeve 21 rotates together, so that the cutting blade 11 can cut the pipe body. During the cutting operation, the fixing bolt 42 is adjusted in real time to ensure that the cutting blade 11 is in good contact with the outer wall of the PVC pipe until the PVC pipe is cut.

[0033] What needs to be explained about the specific structure of the utility model is that the connection relationship between the various component modules adopted in the utility model is definite and feasible. Except for special instructions in the embodiments, the specific connection relationship can bring corresponding technical effects and solve the technical problems raised by the utility model. The above embodiments are only used to illustrate the technical scheme of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that it is still possible to modify the technical scheme recorded in the aforementioned embodiments, or to replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical scheme deviate from the scope of the technical scheme of the embodiments of the utility model.

Claims

1. A portable PVC pipe ring cutting tool, characterized in that: It includes a cutting head, an annular cutting kit, a tooth cone bearing assembly, a cutting disc fixing device and a cutting disc fixing pressure plate; The cutting head comprises an intermediate connecting portion (12), the intermediate connecting portion (12) being connected to a cutting blade (11), and both the intermediate connecting portion (12) and the cutting blade (11) being provided with through holes; The annular cutting kit comprises a kit sleeve (21), one end of the kit sleeve (21) is open, and the other end is provided with a baffle, a hollow hexagonal buckle pin (22) is fixedly connected to the middle of the baffle, one end of the buckle pin (22) is located inside the kit sleeve (21), and the other end is located outside the kit sleeve (21), and a retractable elastic steel ball is provided on both sides of one end of the buckle pin (22) located inside the kit sleeve (21); a fixed base (23) extending into the inside of the kit sleeve (21) is provided on the outer wall of the kit sleeve (21) away from the baffle, and the fixed base (23) is provided with an internal thread; The tooth cone bearing assembly comprises a tooth cone bearing, an outer ring is sleeved on the outer side of the tooth cone bearing, a plurality of threaded teeth (31) are processed on the surface of the outer ring and are evenly distributed in the axial direction, a clamping block (32) is welded on the outer ring of the bearing, and the inner ring of the bearing is a hexagonal groove (33), and steel ball grooves matching with elastic steel balls are left at symmetrical ends of the hexagonal groove (33); The cutting blade fixing device comprises two fixing bolts (42) and a high-strength spring (41) sleeved on the outside of the fixing bolts (42); The cutting blade fixing plate comprises a cutting blade fixing shaft (52), and fixing bolt pressing plates (51) are respectively fixedly connected to both ends of the cutting blade fixing shaft (52), and a through hole for the fixing bolt (42) to pass through is formed on the fixing bolt pressing plate (51).

2. A portable PVC pipe annular cutting tool according to claim 1, characterized in that: The cutting blade (11) is made of high-strength alloy iron and is a circular bladed slice with a radius of 5 mm.

3. A portable PVC pipe annular cutting tool according to claim 1, characterized in that: The buckle pin shaft (22) is coaxially arranged with the kit sleeve (21).

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