Plastic hard tube opening device

Abstract

The utility model discloses a kind of plastic rigid pipe opening devices. Plastic rigid pipe opening device includes: handle and the fixing ring for being fixed in the peripheral of plastic rigid pipe being installed at its end portion;The handle includes main rod, a rotating rod is rotatably installed in the main rod, the rotating rod end portion is equipped with blade, the rotating rod can drive blade rotation;The fixing ring includes first hoop and second hoop, the first hoop and second hoop are detachably connected, and can be tightly held in the peripheral of plastic rigid pipe after connection;Slot frame for accommodating blade is equipped on the first hoop, and the main rod is installed on slot frame. Plastic rigid pipe opening device provided by the utility model realizes the handle fixed on the outer wall of plastic rigid pipe by setting fixing ring, then rotating the rotating rod of handle drives blade to rotate on the surface of plastic rigid pipe to realize the effect of opening, and the device is small and portable for workers to use in construction site.

Description

Technical Field

[0001] This utility model relates to the field of plastic pipe processing technology, and in particular to a device for opening plastic rigid pipes. Background Technology

[0002] Rigid plastic pipes are rigid tubular materials made primarily of synthetic resin with added stabilizers and lubricants. Common materials include polyvinyl chloride (PVC), polyethylene (PE), and polypropylene (PP). PVC pipes are widely used in building drainage and electrical wiring protection due to their strong corrosion resistance, PE pipes are often used in water supply systems due to their good flexibility, and PP pipes are suitable for transporting chemical fluids due to their high temperature resistance.

[0003] The prior art discloses a plastic pipe end opening device, including a base plate, on which an mounting frame is mounted via a vertical telescopic cylinder. An mounting cylinder is mounted on the mounting frame, and a cutting motor is installed inside the mounting cylinder. An upper rotating plate and a lower rotating plate are rotatably mounted on the mounting cylinder. A second cutting component and a first cutting component are respectively mounted on the ends of the upper and lower rotating plates away from the mounting cylinder. The cutting motor is connected to the second and first cutting components via gear assemblies. An adjustable telescopic cylinder is also installed between the lower and upper rotating plates. A steering component is also installed on the top of the mounting cylinder to drive the entire assembly consisting of the lower rotating plate, the upper rotating plate, the adjustable telescopic cylinder, the second cutting component, and the first cutting component to rotate.

[0004] The above-mentioned device is a desktop device. In actual work, it is often necessary to make an opening in the plastic rigid pipe on the construction site to connect its branch pipe, which is not portable enough.

[0005] Therefore, it is necessary to provide a plastic rigid tube opening device to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a plastic rigid tube opening device that is easy to carry and use.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A plastic rigid tube opening device includes: a handle and a retaining ring installed at its end for securing to the periphery of the plastic rigid tube;

[0009] The grip includes a main rod, and a rotating rod is rotatably mounted inside the main rod. A blade is mounted at the end of the rotating rod, and the rotating rod can drive the blade to rotate.

[0010] The fixing ring includes a first hoop and a second hoop, which are detachably connected and can be tightly held around the plastic rigid tube after being connected.

[0011] The first hoop is provided with a slot for accommodating the blade, and the main rod is mounted on the slot.

[0012] Preferably, the upper end of the slot frame is provided with a bearing interface, and the lower end of the main rod is a threaded section, which is threadedly connected to the bearing interface.

[0013] Preferably, the second hoop is an arc shape with a certain curvature.

[0014] Preferably, the first hoop and the second hoop are hinged at one end and connected at the other end by bolts.

[0015] Preferably, the upper end of the blade has a connection port, and the lower end surface of the connector in the rotating rod has threads, and the connector is threaded to the connection port.

[0016] Preferably, a spring is placed at the bottom of the main rod, the spring is sleeved around the connector, and the upper end of the spring is located at the lower end of the rotating rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] (1) This utility model achieves the fixation of the handle to the outer wall of the plastic hard pipe by setting a fixing ring, and then rotating the handle rod to drive the blade to rotate on the surface of the plastic hard pipe to achieve the opening effect. The device is small in size and easy for workers to carry to the construction site for use.

[0019] (2) The handle and the fixing ring of this utility model can be detached and separated, and the blade can also be removed from the rotating rod for replacement and storage, which not only enriches the specifications of the opening but also improves the safety of the device when carrying it.

[0020] (3) The connection between the first hoop and the second hoop of this utility model saves the connection operation during construction and is more labor-saving. Attached Figure Description

[0021] Figure 1 Exploded view of the plastic rigid pipe opening device provided by this utility model;

[0022] Figure 2 A cross-sectional view of the plastic rigid tube opening device provided by this utility model;

[0023] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 4 A schematic diagram of the fixing ring of the plastic rigid tube opening device provided by this utility model.

[0025] The corresponding names of the reference numerals in the attached drawings are as follows: 10, handle; 11, main rod; 111, retaining ring; 112, plug; 113, threaded section; 12, rotating rod; 121, bearing; 122, connector; 123, rope hole; 14, blade; 141, connection port; 15, spring; 20, fixing ring; 21, first hoop ring; 211, slot frame; 212, receiving interface; 213, connecting ear; 214, bolt; 22, second hoop ring. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0027] Plastic rigid pipes have penetrated into fields such as urban water supply, gas transmission, and agricultural irrigation. The white building drainage pipes commonly seen in daily life are made of PVC plastic rigid pipes. During construction, branch pipes can be connected by drilling holes or installing adapters. The inventor discovered that pre-drilled pipes sometimes cannot meet the needs of the construction site, such as the location of the hole or the size of the hole. If there were a portable tool to assist in drilling holes, it would greatly improve work efficiency.

[0028] First embodiment:

[0029] like Figure 1 As shown, the plastic rigid pipe opening device provided by this utility model includes two parts, an upper and a lower part. The upper part is a handle 10 for workers to hold, and a fixing ring 20 is installed at its end to fix it to the outside of the plastic rigid pipe.

[0030] Specifically, the grip 10 includes a main shaft 11, which is a cylindrical structure, hollow inside, and connected at both ends. The lower opening has an annular plug 112 with an inner diameter smaller than that of the main shaft 11. Figures 2-3As shown, a retaining ring 111 is fixedly installed on the inner wall of the main rod 11. The retaining ring 111 is annular and has a section for the lower end of the rotating rod 12 to pass through. The rotating rod 12 will be described in detail below. The outer wall of the lower end of the main rod 11 has a threaded section 113 that matches the receiving interface 212 on the slot frame 211. The two are threadedly connected. On the other hand, the outer diameter of the rotating rod 12 is smaller than the inner diameter of the main rod 11 and passes through it. Two bearings 121 are fixedly installed on the outer wall of the rotating rod 12. One bearing 121 is located at the lower end of the retaining ring 111, and the other bearing 121 is located at the lower end of the main rod 11. At the upper end of the retaining ring 111, the outer diameter of the bearing 121 is slightly smaller than the inner diameter of the main rod 11, and the outer wall is smooth. Therefore, the bearing 121 can slide up and down along the inner wall of the main rod 11. The upper end of the rotating rod 12 extends upward beyond the upper end of the main rod 11 and has a hanging hole 123 near its top for inserting a hanging rope, making it easy to carry. A connector 122 is welded to the lower end opening of the rotating rod 12. The lower end of the connector 122 passes through the plug 112 and has a thread that matches the connection port 141 on the blade 14. The shape of the connection port 141 is as follows: Figure 3 As shown, the connector 122 is screwed into the connector 141 and threadedly connected to it. Therefore, the up and down movement of the rotating rod 12 can drive the up and down movement of the blade 14, and the rotation of the rotating rod 12 can drive the rotation of the blade 14.

[0031] The shape of blade 14 is as follows Figure 1 As shown, it is a cylindrical shape with an opening at the lower end, a connection port 141 for installing the connector 122 at the upper end, and a serrated cutting edge at the lower end. The cutting edge contacts the plastic rigid tube and rotates on its surface to achieve the effect of drilling. It should be noted that the blade 14 can also be other types commonly found on the market, such as a tapered drill bit, as long as it can be installed on the connector 122 and open into the plastic rigid tube.

[0032] The fixing ring 20 includes a first hoop 21 and a second hoop 22, as follows: Figure 2 As shown, both are semi-circular rings, with horizontal connecting ears 213 at both ends. The connecting ears 213 have through holes for bolts 214 to pass through. After the first hoop 21 and the second hoop 22 are fitted onto the plastic rigid tube, their ends are fixed with bolts 214, securing them tightly around the plastic rigid tube. The first hoop 21 has an upwardly protruding groove 211, as shown... Figure 1 As shown, the space in this part is used to accommodate the blade 14, and the upper end of the slot frame 211 is welded with a cylindrical receiving interface 212 for the lower end of the main rod 11 to be inserted and threadedly connected thereto.

[0033] By setting a fixing ring 20, the handle 10 is fixed to the outer wall of the plastic rigid pipe. Then, by rotating the rotating rod 12 of the handle 10, the blade 14 is rotated on the surface of the plastic rigid pipe to achieve the opening effect. The device is small in size and easy for workers to carry to the construction site for use.

[0034] In addition, the handle 10 and the retaining ring 20 can be detached and separated, and the blade 14 can also be removed from the rotating rod 12 for replacement and storage, which not only enriches the opening specifications but also improves the safety of the device when carried.

[0035] Second embodiment:

[0036] like Figure 4 As shown, the second hoop 22 is a concave arc shape with a certain curvature. When the curvature of the arc is small, the inner diameter between the first hoop 21 and the second hoop 22 is small. At the same time, the bolt 214 has a certain length, and the fixing ring 20 can clamp a larger range of pipe diameters.

[0037] Third embodiment:

[0038] like Figure 4 As shown, the first hoop 21 and the second hoop 22 are hinged at one end, and the other end is connected at the connecting ear 213 by bolt 214. Compared with the connection method in the second embodiment, keeping one end of the first hoop 21 and the second hoop 22 connected saves the connection operation during construction and is more labor-saving.

[0039] Fourth embodiment:

[0040] like Figures 2-3 As shown, a spring 15 is placed at the bottom of the main rod 11. The spring 15 is sleeved around the connector 122. The upper end of the spring 15 rests on the lower surface of the bearing 121, and the lower end is located on the plug 112. When the rotating rod 12 moves down, the spring 15 is compressed. After the rotating rod 12 is released, the bearing 121 and the rotating rod 12 are pushed up to the lower end of the retaining ring 111 under the action of the spring 15. This ensures that the blade 14 at the lower end of the rotating rod 12 is located in the slot frame 211 when not in use, reducing the possibility of accidentally injuring construction workers.

[0041] In use, the device is first assembled in sequence. Then, the first hoop 21 and the second hoop 22 are fixed to the plastic rigid tube. After rotating the rotating rod 12 and applying downward pressure, the blade 14 contacts the surface of the plastic rigid tube, and the opening effect is finally achieved by the continuous rotation of the blade 14. The above embodiment is only one of the preferred embodiments of this utility model and should not be used to limit the protection scope of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not substantial and still solve the same technical problem as this utility model should be included within the protection scope of this utility model.

Claims

1. A device for opening a rigid plastic pipe, characterized in that, include: The handle (10) and the retaining ring (20) installed at its end for securing to the periphery of the plastic rigid tube. The grip (10) includes a main rod (11), and a rotating rod (12) is rotatably installed inside the main rod (11). A blade (14) is installed at the end of the rotating rod (12), and the rotating rod (12) can drive the blade (14) to rotate. The fixing ring (20) includes a first hoop (21) and a second hoop (22). The first hoop (21) and the second hoop (22) are detachably connected and can be tightly held around the plastic rigid tube after being connected. The first hoop (21) is provided with a slot (211) for accommodating the blade (14), and the main rod (11) is mounted on the slot (211).

2. The plastic rigid pipe opening device according to claim 1, characterized in that, The upper end of the slot frame (211) is provided with a bearing interface (212), and the lower end of the main rod (11) is a threaded section (113), which is threadedly connected to the bearing interface (212).

3. The plastic rigid pipe opening device according to claim 1, characterized in that, The second hoop (22) is an arc with a certain curvature.

4. The plastic rigid tube opening device according to claim 1 or 3, characterized in that, The first hoop (21) and the second hoop (22) are hinged at one end and connected at the other end by bolts (214).

5. The plastic rigid pipe opening device according to claim 4, characterized in that, The upper end of the blade (14) has a connection port (141), and the lower end surface of the connector (122) in the rotating rod (12) has a thread, and the connector (122) is threadedly connected to the connection port (141).

6. The plastic rigid pipe opening device according to claim 5, characterized in that, A spring (15) is placed at the bottom of the main rod (11). The spring (15) is sleeved around the connector (122), and the upper end of the spring (15) is located at the lower end of the rotating rod (12).

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