阅读说明：本技术 塑料管净水压力试验封堵装置 (Plastic pipe water purification pressure test plugging device ) 是由 杜光 赵刚 张少华 董磊 王修来 周俊楠 于 2019-09-03 设计创作，主要内容包括：本发明公开了一种塑料管净水压力试验封堵装置,设置在被进行压力测试的管体内,包括中心螺纹杆、支撑体、圆柱膨胀体、固定挡块和锁紧螺母,所述支撑体沿其中心轴线方向开设允许所述中心螺纹杆旋入的螺旋孔,所述支撑体旋入所述中心螺纹杆,所述固定挡块固定在所述中心螺纹杆上且与所述支撑体的一侧贴合,所述锁紧螺母旋入所述中心螺纹杆且与所述支撑体的另一侧贴合,所述圆柱膨胀体沿其中心轴线方向开设套设所述支撑体外表面的弹性孔,所述圆柱膨胀体的外周面与所述管体的内壁相贴合,本发明对管体进行有效密封。(The invention discloses a plastic pipe water purification pressure test plugging device which is arranged in a pipe body subjected to pressure test and comprises a central threaded rod, a supporting body, a cylindrical expansion body, a fixed stop block and a locking nut, wherein the supporting body is provided with a spiral hole allowing the central threaded rod to be screwed in along the central axis direction, the supporting body is screwed in the central threaded rod, the fixed stop block is fixed on the central threaded rod and is attached to one side of the supporting body, the locking nut is screwed in the central threaded rod and is attached to the other side of the supporting body, the cylindrical expansion body is provided with an elastic hole sleeved on the outer surface of the supporting body along the central axis direction, and the outer peripheral surface of the cylindrical expansion body is attached to the inner wall of the pipe body.)

1. The utility model provides a plastic tubing water purification pressure test plugging device, sets up in the body that is carried out the pressure test, a serial communication port, including central threaded rod, supporter, cylinder inflation body, fixed dog and lock nut, the supporter is seted up along its central axis direction and is allowed the spiral hole of central threaded rod screw in, the supporter screw in central threaded rod, fixed dog is fixed on the central threaded rod and with one side laminating of supporter, lock nut screw in central threaded rod and with the opposite side laminating of supporter, the cylinder inflation body is seted up the cover along its central axis direction and is established the elasticity hole of supporter surface, the outer peripheral face of cylinder inflation body with the inner wall of body laminates mutually.

2. The plastic pipe water purification pressure test plugging device according to claim 1, wherein a sealing ring is further arranged between the outer peripheral surface of the cylindrical expansion body and the inner wall of the pipe body, and the sealing ring is sleeved outside the cylindrical expansion body.

3. The plastic pipe net water pressure test plugging device of claim 2, wherein an end of the sealing ring is flush with an end of the cylindrical expansion body.

4. The plastic pipe plugging device for the purified water pressure test of the claim 1, wherein the supporting body comprises an upper half cone-shaped supporting body, a middle supporting body and a lower half cone-shaped supporting body which are sequentially connected by taking the central line axis of the central threaded rod as an axis.

5. The plastic pipe net water pressure test plugging device of claim 4, wherein the upper half-cone shaped support body and the lower half-cone shaped support body are the same shape.

6. The plastic pipe water purification pressure test plugging device of claim 4, wherein the radius of the upper semi-conical support body is gradually reduced, the radius of the lower semi-conical support body is gradually increased, and the middle support body is connected with the upper semi-conical support body and the lower semi-conical support body.

7. The plastic pipe water purification pressure test plugging device as claimed in claim 1, wherein the fixed stopper is a disc plate body, and a through hole allowing the central threaded rod to be sleeved and fixed is formed in the disc plate body along the central axis direction of the disc plate body.

8. The plastic pipe water purification pressure test plugging device of claim 1, wherein a fastening handle is connected to the end of the central threaded rod.

Technical Field

The invention relates to the technical field of plugging devices, in particular to a plastic pipe purified water pressure test plugging device.

Background

Disclosure of Invention

The present invention is intended to solve the above technical problems to some extent.

In view of the above, the invention provides a plastic pipe purified water pressure test plugging device, which effectively seals a pipe body.

In order to solve the technical problem, the invention provides a plastic pipe water purification pressure test plugging device which is arranged in a pipe body subjected to pressure test and comprises a central threaded rod, a support body, a cylindrical expansion body, a fixed stop block and a locking nut, wherein the support body is provided with a spiral hole allowing the central threaded rod to be screwed in along the direction of the central axis of the support body, the support body is screwed in the central threaded rod, the fixed stop block is fixed on the central threaded rod and is attached to one side of the support body, the locking nut is screwed in the central threaded rod and is attached to the other side of the support body, the cylindrical expansion body is provided with an elastic hole sleeved on the outer surface of the support body along the direction of the central axis of the cylindrical expansion body, and the outer peripheral surface of the cylindrical.

Further, a sealing ring is further arranged between the outer peripheral surface of the cylindrical expansion body and the inner wall of the pipe body, and the sealing ring is sleeved outside the cylindrical expansion body.

Further, the end of the sealing ring is flush with the end of the cylindrical expansion body.

Furthermore, the supporter includes the last half cone-shaped supporter, middle supporter and the lower half cone-shaped supporter that use central threaded rod central line axis to connect gradually as the axle.

Further, the upper semi-conical support body and the lower semi-conical support body are the same in shape.

Further, the radius of the upper semi-conical support body is gradually reduced, the radius of the lower semi-conical support body is gradually increased, and the middle support body is connected with the upper semi-conical support body and the lower semi-conical support body.

Furthermore, the fixed stop block is a disc plate body, and a through hole allowing the central threaded rod to be sleeved and fixed is formed in the disc plate body along the direction of the central axis of the disc plate body.

Further, the end part of the central threaded rod is connected with a fastening handle.

The invention has the technical effects that: fixed dog, supporter, lock nut install on central threaded rod in proper order, and the equipment is accomplished to the cylinder inflation body to the outside cover of supporter, and in stuffing the pipe body with the device that assembles, rotatory central threaded rod made the cylinder inflation body expand outward to effective separation examination pressurized-water reveals, ensures that plastic tubing water purification pressure test successfully accomplishes.

Drawings

Fig. 1 is a schematic structural diagram of a plastic pipe purified water pressure test plugging device according to the invention.

Wherein, 1-central threaded rod; 2-fastening a handle; 3-a lower semi-conical support; 4-upper half conical support; 5-locking the nut; 6-fixing a stop block; 7-sealing ring; 8-cylindrical expansion body.

Detailed Description

The present invention is further described with reference to the following drawings and specific examples so that those skilled in the art can better understand the present invention and can practice the present invention, but the examples are not intended to limit the present invention.

As shown in fig. 1, a plastic tubing water purification pressure test plugging device, the setting is in the body of being carried out the pressure test, including central threaded rod 1, the supporter, the cylinder inflation body 8, fixed stop 6 and lock nut 5, the spiral hole that allows 1 screw in of central threaded rod is seted up along its central axis direction to the supporter, supporter screw in central threaded rod 1, fixed stop 6 fixes on central threaded rod 1 and laminates with one side of supporter, lock nut 5 screw in central threaded rod 1 and laminates with the opposite side of supporter, the elastic hole of cover setting supporter surface is seted up along its central axis direction to cylinder inflation body 8, the outer peripheral face of cylinder inflation body 8 laminates with the inner wall of body mutually.

According to the specific embodiment of the invention, the fixed stop 6 is fixed on the central threaded rod 1, firstly, the support body is screwed into the central threaded rod 1 to ensure that the bottom of the support body is attached to the fixed stop 6, secondly, the locking nut 5 is screwed into the central threaded rod 1 to ensure that the central threaded rod 1 is attached to the top of the central threaded rod 1 to position the support body, finally, the cylindrical expansion body 8 is sleeved outside the support body to complete the assembly, the assembled device is plugged into the pipe body from the port of the pipe body, the peripheral surface of the cylindrical expansion body 8 is attached to the inner wall of the pipe body, and the central threaded rod 1 is rotated to ensure that the cylindrical expansion body 8 expands outwards, so that the leakage of test pressure water is effectively blocked, the successful completion of a water purification pressure test of a plastic pipe is ensured, and the device has the characteristics of simple structure, convenience in operation, economy and safety, the construction cost of materials, machines and the like, and the aims of saving energy, reducing emission, reducing cost and improving efficiency are achieved.

Specifically, the cylindrical expansion body 8 is a rubber body.

Specifically, the central threaded rod 1 is fixed with a fixed stop 6 for welding.

According to the specific embodiment of the invention, a sealing ring 7 is further arranged between the outer peripheral surface of the cylindrical expansion body 8 and the inner wall of the pipe body, and the sealing ring 7 is sleeved outside the cylindrical expansion body 8 to prevent the leakage of test pressure water and bear the pressure of a hydrostatic test.

According to the embodiment of the invention, the end part of the sealing ring 7 is flush with the end part of the cylindrical expansion body 8, so that the material is saved.

According to the specific embodiment of the invention, the support body comprises an upper semi-conical support body, a middle support body and a lower semi-conical support body 3 which are sequentially connected by taking the central line axis of the central threaded rod 1 as an axis, the support effect on the cylindrical expansion body 8 is good, the cylindrical expansion body 8 is prevented from falling off in the process of screwing the support body, and the expansion effect of the cylindrical expansion body 8 is improved.

According to a particular embodiment of the invention, the upper semi-conical support is identical in shape to the lower semi-conical support 3.

According to the specific embodiment of the present invention, the radius of the upper semi-conical support is gradually decreased, the radius of the lower semi-conical support 3 is gradually increased, and the middle support connects the upper semi-conical support and the lower semi-conical support 3.

According to the specific embodiment of the present invention, the fixed stop 6 is a disc plate, and a through hole allowing the central threaded rod 1 to be sleeved and fixed is formed along the central axis of the disc plate.

According to the specific embodiment of the invention, the end part of the central threaded rod 1 is connected with the fastening handle 2, so that the operation is convenient.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.