PVC pipe flaring device

Abstract

The utility model relates to the technical field of flaring devices, in particular to a PVC (polyvinyl chloride) pipe flaring device, which solves the problems mentioned in the background technology and comprises a base and an expanding structure, a first support rod is arranged at the top of the base, a motor is mounted at the top of the first support rod, a first gear is connected onto the motor, and a support frame is connected to the top of the base. The top of the base is connected with a second supporting rod, the top of the second supporting rod is connected with a supporting cylinder, a threaded rod is installed on the supporting cylinder, two nuts are installed on the threaded rod, one end of the threaded rod is connected with a conical head, and the other end of the threaded rod is connected with a rotating disc; the inner wall of the second gear is connected with four evenly-distributed sliding barrels, the interior of each sliding barrel is connected with a spring, each spring is connected with a sliding rod, and each sliding rod is connected with an expansion rod.

Description

Technical Field

[0001] The utility model relates to the technical field of expansion devices, in particular to a PVC pipe expansion device. Background Art

[0002] As we all know, PVC pipe (PVC-U pipe) is a rigid polyvinyl chloride pipe, which is made of polyvinyl chloride resin, stabilizer, lubricant, etc. and then extruded by hot pressing. It is the earliest plastic pipe to be developed and applied. PVC-U pipe has strong corrosion resistance, easy bonding, low price and hard texture. However, due to the leakage of PVC-U monomer and additives, it is only suitable for water supply systems with a conveying temperature not exceeding 45°C. Plastic pipes are used for drainage, wastewater, chemicals, heating and cooling liquids, food, ultra-pure liquids, mud, gas, compressed air and vacuum system applications.

[0003] The traditional flaring device has a fixed mold design, which makes it impossible to adjust the flaring depth and size. A variety of PVC pipes with different diameters are required during the construction process, which makes it time-consuming and labor-intensive to replace the flaring machine mold during docking. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a PVC pipe expanding device, which solves the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PVC pipe expanding device, comprising a base and an expansion structure, a first support rod is arranged on the top of the base, a motor is installed on the top of the first support rod, a first gear is connected to the motor, a support frame is connected to the top of the base, a second support rod is connected to the top of the base, a support tube is connected to the top of the second support rod, a threaded rod is installed on the support tube, two nuts are installed on the threaded rod, a cone head is connected to one end of the threaded rod, a turntable is connected to the other end of the threaded rod, the expansion structure comprises a second gear, four evenly distributed sliding tubes are connected to the inner wall of the second gear, a spring is connected to the inside of each sliding tube, each spring is connected to a sliding rod, and each sliding rod is connected to an expansion rod.

[0008] Furthermore, the first gear is meshed with the second gear.

[0009] Furthermore, the support frame is composed of a connecting seat and two fixing rings, and each fixing ring is connected to the second gear through rotation.

[0010] Furthermore, the four expansion rods may form a cylindrical shape with a through hole in the middle.

[0011] Furthermore, an internal thread is provided inside the support tube, and the support tube is connected to the threaded rod through threads.

[0012] Furthermore, a scale is arranged on the outer wall of each expansion rod.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a PVC pipe expansion device, which has the following beneficial effects:

[0015] The PVC pipe expansion device adjusts the depth of the cone head entering the expansion rod by rotating the threaded rod on the support tube, so as to facilitate the production of PVC pipe expansion openings of different thicknesses. Each expansion rod is provided with a scale, which is conducive to adjusting the expansion depth and improving the convenience of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the isometric structure of the utility model;

[0017] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of the expansion structure in the utility model;

[0019] Figure 4 It is a schematic diagram of the cross-section structure of the expansion structure in the utility model.

[0020] In the figure: 1. base; 2. first support rod; 3. motor; 4. first gear; 5. support frame; 6. second gear; 7. slide cylinder; 8. spring; 9. slide rod; 10. expansion rod; 11. second support rod; 12. support cylinder; 13. threaded rod; 14. nut; 15. cone head; 16. turntable. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4The utility model discloses a PVC pipe expansion device, comprising a base 1 and an expansion structure. A first support rod 2 is arranged on the top of the base 1, a motor 3 is installed on the top of the first support rod 2, the motor 3 is connected to a power source through a wire, a first gear 4 is connected to the motor 3, a support frame 5 is connected to the top of the base 1, a second support rod 11 is connected to the top of the base 1, a support cylinder 12 is connected to the top of the second support rod 11, a threaded rod 13 is installed on the support cylinder 12, an internal thread is arranged inside the support cylinder 12, the support cylinder 12 is connected to the threaded rod 13 through a thread, two nuts 14 are installed on the threaded rod 13, and the thread One end of the rod 13 is connected to a cone head 15, and the other end of the threaded rod 13 is connected to a turntable 16. The expansion structure includes a second gear 6. The first gear 4 is meshingly connected to the second gear 6. The support frame 5 is composed of a connecting seat and two fixing rings, each of which is connected to the second gear 6 by rotation. Four evenly distributed slide cylinders 7 are connected to the inner wall of the second gear 6, and a spring 8 is connected to the inside of each slide cylinder 7. Each spring 8 is connected to a slide rod 9, and each slide rod 9 is connected to an expansion rod 10. A scale is set on the outer wall of each expansion rod 10. The four expansion rods 10 can form a cylinder with a through hole in the middle.

[0023] To sum up, when using the PVC pipe expanding device, one end of the PVC pipe is placed on the expansion rod 10 according to the scale, and the motor 3 is started, so that the first gear 4 drives the second gear 6 to rotate, and the second gear 6 drives each expansion rod 10 to rotate, and by rotating the turntable 16, the threaded rod 13 drives the cone head 15 to penetrate into the middle of each expansion rod 10, and each expansion rod 10 is supported and opened. When the required expansion opening thickness of the PVC pipe is reached, each nut 14 is rotated to fix the threaded rod 13, so that the device can produce expansion openings of different depths and thicknesses, thereby improving the convenience of construction.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A PVC pipe expansion device, comprising a base (1) and an expansion structure, characterized in that: A first support rod (2) is arranged on the top of the base (1), a motor (3) is installed on the top of the first support rod (2), a first gear (4) is connected to the motor (3), a support frame (5) is connected to the top of the base (1), a second support rod (11) is connected to the top of the base (1), a support tube (12) is connected to the top of the second support rod (11), a threaded rod (13) is installed on the support tube (12), two nuts (14) are installed on the threaded rod (13), one end of the threaded rod (13) is connected to a cone head (15), and the other end of the threaded rod (13) is connected to a turntable (16), and the expansion structure comprises a second gear (6), four equally distributed slide tubes (7) are connected to the inner wall of the second gear (6), each of the slide tubes (7) is connected to a spring (8), each of the springs (8) is connected to a slide rod (9), and each of the slide rods (9) is connected to an expansion rod (10).

2. A PVC pipe expansion device according to claim 1, characterized in that: The first gear (4) and the second gear (6) are connected by meshing.

3. A PVC pipe expansion device according to claim 1, characterized in that: The support frame (5) is composed of a connecting seat and two fixing rings, and each of the fixing rings is connected to the second gear (6) by rotation.

4. A PVC pipe expansion device according to claim 1, characterized in that: The four expansion rods (10) can form a cylindrical shape with a through hole in the middle.

5. A PVC pipe expansion device according to claim 1, characterized in that: The support tube (12) is provided with an internal thread inside, and the support tube (12) is connected to the threaded rod (13) via threads.

6. A PVC pipe expansion device according to claim 1, characterized in that: The outer wall of each expansion rod (10) is provided with a scale.

Images