Radioactive blow-off pipe inspection opening device

Abstract

The utility model relates to the technical field of radioactive blow-off pipes, in particular to a radioactive blow-off pipe inspection opening device which comprises a combined pipe head, a first cover body, a lead sheet and a second cover body. The combined pipe head is of a circular pipe structure with two open ends, one thick end and the other thin end, and the thin end is inserted into the inspection hole of the blow-off pipe and fixedly connected with the blow-off pipe. The first cover body is arranged in the combination pipe head and is of a structure which is matched with the combination pipe head and is provided with a thick end and a thin end, the thin end of the first cover body is in threaded connection with the thin end of the combination pipe head, a containing groove is formed in the thick end of the first cover body, and the inner diameter of the containing groove is larger than that of the blow-off pipe. At least one lead sheet is placed in the containing groove, and the lead sheet is matched with the containing groove. And the second cover body covers one end, far away from the blow-off pipe, of the first cover body.

Description

Technical Field

[0001] The utility model relates to the technical field of radioactive sewage pipes, and more specifically, particularly relates to a radioactive sewage pipe inspection port device. Background Art

[0002] The discharge of radioactive wastewater from hospitals mainly comes from nuclear medicine, involving medical function spaces such as ECT, PET examinations, and radionuclide wards. Radioactive wastewater comes from the patient's body and is discharged into the decay pool through a dedicated sewage pipe. Radioactive wastewater is different from ordinary sewage in that it contains radioactivity. In order to reduce the impact of sewage radioactivity on the environment, the following methods are mainly used: 1. Radioactive wastewater is set below the floor; 2. Concrete or lead is used to wrap it; 3. There are fewer connecting ports between the drainage pipe and the floor. Therefore, the risk of blockage of radioactive wastewater drainage pipes is higher than that of other ordinary pipes, and it is difficult to repair. The inspection hole of the drainage pipe, which is used to clear the blockage, becomes a risk point because it is directly connected to the ground. In order to reduce related risks, on the one hand, there are few inspection holes set in the pipelines during the current design and construction, and on the other hand, there is a lack of clear guiding construction plans in the relevant specifications and standards.

[0003] This application mainly solves the problem of radioactive sewage outlets. Due to the restrictions of medical radiation protection safety and medical procedures, the contaminated environment can only be cleaned after the radiation value reaches a safe level. The cleaning time is affected by the type and dose of the radioactive source, with a half-life ranging from 2 hours to 2 days, and the time required for patient treatment. Because cleaning is difficult to carry out in a timely manner, there is a risk of blockage and aggravation of the pipe network.

[0004] Therefore, it is necessary to provide an inspection cover that can be directly combined with the existing radioactive sewage pipe inspection port structure. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and to provide an inspection cover which can be directly combined with the existing inspection port structure of the radioactive sewage pipe.

[0006] A radioactive sewage pipe inspection port device comprises a combined pipe head, a first cover body, a lead sheet and a second cover body. The combined pipe head is a circular tubular structure with two ends open and one end thick and the other end thin. The thin end is inserted into the inspection hole of the sewage pipe and is fixedly connected to the sewage pipe. The first cover body is arranged in the combined pipe head, and is a structure with one end thick and the other end adapted to the combined pipe head. The thin end of the first cover body is threadedly connected to the thin end of the combined pipe head. The thick end of the first cover body is provided with a receiving groove, and the inner diameter of the receiving groove is larger than the inner diameter of the sewage pipe. At least one lead sheet is placed in the receiving groove, and the lead sheet matches the receiving groove. The second cover body is arranged to cover the end of the first cover body away from the sewage pipe.

[0007] Furthermore, an inner pressure cover is provided in the receiving groove, the inner pressure cover is located on a side of the lead sheet away from the sewage pipe, and the inner pressure cover is connected to the first cover body.

[0008] Furthermore, the inner wall of the accommodating groove is provided with a plurality of snap rings, and the inner pressure cover can be selectively snap-connected with one of the snap rings.

[0009] Furthermore, the upper end surfaces of the combined pipe head and the first cover body are located in the same plane and are flush with the upper surface of the ground layer or the surface of the wall layer.

[0010] Furthermore, an operation port is integrally provided at one end of the first cover body away from the sewage pipe, the inner diameter of the operation port is equal to or greater than the inner diameter of the thick end of the first cover body, and the outer diameter of the operation port is equal to or greater than the outer diameter of the thick end of the first cover body.

[0011] Furthermore, at least two slots are formed on the inner wall of the receiving groove, and the slots are distributed in a ring array.

[0012] Furthermore, the first cover body and the combined pipe head are bonded and connected by an adhesive.

[0013] Furthermore, the combined pipe head is made of PVC material.

[0014] Furthermore, the first cover is made of stainless steel.

[0015] Furthermore, the second cover is made of stainless steel.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The radioactive sewage pipe inspection port device in the utility model can be directly combined with the inspection hole of the existing sewage pipe, the combined pipe head is fixed with the inspection hole of the existing sewage pipe, and the first cover body is threadedly connected with the combined pipe head, so as to achieve the purpose of quick connection, convenient maintenance and rapid recovery, and can effectively reduce difficult-to-handle blockages, reduce forced damage to concrete pipes, and reduce the impact on medical order. According to the requirements of radiation measurement, lead sheets can be simply added to reduce the impact on the environment, and lead sheets can be conveniently and flatly installed to give the cleaning port the function of radiation protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the radioactive sewage pipe inspection port device in Example 1.

[0020] Figure 2 It is a schematic diagram of the overall structure of the radioactive sewage pipe inspection port device in the second embodiment.

[0021] Figure 3 It is a schematic diagram of the overall structure of the radioactive sewage pipe inspection port device in Example 3.

[0022] Figure 4 It is a schematic diagram of the overall structure of the radioactive sewage pipe inspection port device in the fourth embodiment.

[0023] Figure 5 It is a partial structural schematic diagram of the radioactive sewage pipe inspection port device in Example 5.

[0024] In the figure: 1. Combination pipe head; 2. First cover body; 3. Receiving groove; 4. Lead sheet; 5. Second cover body; 6. Operation port; 7. Concrete floor; 8. Ground layer; 9. Wall; 10. Wall layer; 11. Auxiliary installation tools; 12. Inner pressure cover; 13. Card slot. DETAILED DESCRIPTION

[0025] 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.

[0026] Embodiment 1:

[0027] like Figure 1 As shown, the radioactive sewage pipe inspection port device in this embodiment is suitable for the ground inspection hole of the horizontal sewage pipe, including a combined pipe head 1, a first cover body 2, a lead sheet 4 and a second cover body 5. The combined pipe head 1 is a round tube structure with two ends open, one end thick and the other end thin, and the thin end is inserted into the inspection hole of the sewage pipe and fixedly connected to the sewage pipe. The first cover body 2 is arranged in the combined pipe head 1, and the first cover body 2 is a cylindrical structure with one end thick and the other end adapted to the combined pipe head 1, and the thin end of the first cover body 2 is threadedly connected to the thin end of the combined pipe head 1, and the thick end of the first cover body 2 is provided with a receiving groove 3 with an opening facing upward, and the inner diameter of the receiving groove 3 is greater than the inner diameter of the sewage pipe. At least one lead sheet 4 is placed in the receiving groove 3, and the lead sheet 4 matches the receiving groove 3, the receiving groove 3 is a cylindrical structure, and the lead sheet 4 is a circular structure with the same diameter as the receiving groove 3. The second cover body 5 is covered at one end of the first cover body 2 away from the sewage pipe.

[0028] Specifically, in this embodiment, the coupling pipe head 1 is made of PVC material, and the coupling pipe head 1 and the inspection hole of the sewage pipe are bonded with an adhesive, so that the coupling pipe head 1 is fixed to the inspection hole of the sewage pipe. Most of the thin end of the coupling pipe head 1 is located in the concrete floor 7, and the thick end is located in the ground layer 8 and is tightly connected to the ground layer 8, and the upper end surface of the coupling pipe head 1 is flush with the upper surface of the ground layer 8. The first cover body 2 is located in the coupling pipe head 1, and the thin end of the first cover body 2 is threadedly connected to the thin end of the coupling pipe head 1. The thin end of the first cover body 2 can also be provided with a groove with an opening facing downward, so as to reduce the weight and material of the first cover body 2. The first cover body 2 in this embodiment is made of stainless steel. The second cover body 5 is made of stainless steel and is a circular stainless steel cover plate.

[0029] The working principle of the radioactive sewage pipe inspection port device in this embodiment is:

[0030] The radioactive sewage pipe inspection port device in the utility model can be directly combined with the existing horizontal sewage pipe ground inspection hole, the combined pipe head 1 is connected with the existing horizontal sewage pipe ground inspection hole, and the first cover body 2 is threadedly connected with the combined pipe head 1, so as to achieve the purpose of quick connection, convenient maintenance and rapid recovery, and can effectively reduce difficult-to-handle blockages, reduce forced damage to concrete pipes, and reduce the impact on medical order. According to the requirements of radiation measurement, lead sheets can be simply added to reduce the impact on the environment, and the lead sheet 4 can be conveniently and flatly installed to give the cleaning port the function of radiation protection.

[0031] Embodiment 2:

[0032] like Figure 2 As shown, the radioactive sewage pipe inspection port device in this embodiment is suitable for the inspection hole of the vertical sewage pipe wall 9, including a combined pipe head 1, a first cover body 2, a lead sheet 4, an inner pressure cover 12 and a second cover body 5. The combined pipe head 1 is a circular tubular structure with two ends open, one end thick and the other end thin, and the thin end is inserted into the inspection hole of the sewage pipe and fixedly connected to the sewage pipe. The first cover body 2 is arranged in the combined pipe head 1, and the first cover body 2 is a cylindrical structure with one end thick and the other end adapted to the combined pipe head 1, and the thin end of the first cover body 2 is threadedly connected to the thin end of the combined pipe head 1, and the thick end of the first cover body 2 is provided with a receiving groove 3 with an opening facing upward, and the inner diameter of the receiving groove 3 is larger than the inner diameter of the sewage pipe. At least one lead sheet 4 is placed in the receiving groove 3, and the lead sheet 4 matches the receiving groove 3, the receiving groove 3 is a cylindrical structure, and the lead sheet 4 is a circular structure with the same diameter as the receiving groove 3.

[0033] An inner gland 12 is provided in the receiving groove 3, and the inner gland 12 is located on the side of the lead sheet 4 away from the sewage pipe, and the inner gland 12 is connected to the first cover body 2. Specifically, a plurality of clamping rings are provided on the inner wall of the receiving groove 3, and the inner gland 12 can be selectively clamped with one of the clamping rings, and the clamping position of the inner gland 12 and the clamping ring is determined according to the number and thickness of the lead sheet 4. The function of the inner gland 12 is to fix the lead sheet 4 when the radioactive sewage pipe inspection port device is installed in the inspection hole of the vertical sewage pipe wall 9, so as to prevent the lead sheet 4 from moving, dislocating, and tipping over.

[0034] In this embodiment, the second cover body 5 is covered on the end of the first cover body 2 away from the sewage pipe. The combined pipe head 1 is made of PVC material, and the combined pipe head 1 and the inspection hole of the sewage pipe are bonded with an adhesive to fix the combined pipe head 1 to the inspection hole of the sewage pipe. Most of the thin end of the combined pipe head 1 is located in the wall 9, the thick end is located in the wall layer 10 and is tightly connected to the wall layer 10, and the upper end surface of the combined pipe head 1 is flush with the surface of the wall layer 10. The first cover body 2 is located in the combined pipe head 1, and the thin end of the first cover body 2 is threadedly connected to the thin end of the combined pipe head 1. The thin end of the first cover body 2 can also be provided with a groove with an opening facing downward, so as to reduce the weight and material of the first cover body 2. The first cover body 2 in this embodiment is made of stainless steel. The second cover body 5 is made of stainless steel and is a circular stainless steel cover plate. A fixing ring is fixed on the second cover body 5. When the second cover body 5 is covered on the first cover body 2, the fixing ring is located on the inner side of the first cover body 2 and is frictionally connected with the first cover body 2, thereby preventing the second cover body 5 from falling.

[0035] Embodiment three:

[0036] like Figure 3 As shown, the radioactive sewage pipe inspection port device in this embodiment is suitable for the ground inspection hole of the horizontal sewage pipe. Different from the first embodiment, the first cover body 2 in this embodiment is integrally provided with an operation port 6 at one end away from the sewage pipe, the inner diameter of the operation port 6 is equal to or greater than the inner diameter of the thick end of the first cover body 2, the outer diameter of the operation port 6 is equal to or greater than the outer diameter of the thick end of the first cover body 2, and the operation port 6 is located above the upper surface of the ground layer 8, and the second cover body 5 is covered on the operation port 6, so as to facilitate holding or using tools to clamp the operation port 6 and rotate it, so as to more conveniently and quickly install and remove the first cover body 2.

[0037] Embodiment 4:

[0038] like Figure 4As shown, the radioactive sewage pipe inspection port device in this embodiment is suitable for the inspection hole of the vertical sewage pipe wall 9. Different from the second embodiment, the first cover body 2 in this embodiment is integrally provided with an operation port 6 at one end away from the sewage pipe, the inner diameter of the operation port 6 is equal to or greater than the inner diameter of the thick end of the first cover body 2, the outer diameter of the operation port 6 is equal to or greater than the outer diameter of the thick end of the first cover body 2, and the operation port 6 is located on the outer side of the surface of the wall layer 10, and the second cover body 5 is covered on the operation port 6, so as to facilitate holding or using tools to clamp the operation port 6 and rotate it, so as to more conveniently and quickly install and remove the first cover body 2.

[0039] Embodiment five:

[0040] like Figure 5 As shown, in this embodiment, two card slots 13 are provided on the inner wall of the receiving groove 3 at the thick end of the first cover body 2. In some other embodiments, the number of the card slots 13 can also be three or more, and these card slots 13 are distributed in the form of a circular array. When installing and removing the first cover body 2, an auxiliary installation tool 11 is used for installation and removal. Specifically, the auxiliary installation tool 11 in this embodiment is a U-shaped steel strip, and a card plate that matches the card slot 13 is fixed at the end of the U-shaped steel strip, and the two wings of the U-shaped steel strip can be deformed by the extrusion force, causing the two card plates to move in a similar direction, thereby entering the receiving groove 3 of the first cover body 2, and allowing the card plate to be inserted into the card slot 13. Rotating the U-shaped steel strip drives the first cover body 2 to rotate, and the installation and removal is completed.

[0041] The first cover body 2 in the radioactive sewage pipe inspection port device applicable to the inspection hole of the vertical sewage pipe wall 9 and the ground inspection hole of the horizontal sewage pipe can adopt the structure of the first cover body 2 in this embodiment.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A radioactive sewage pipe inspection port device, characterized in that: include: A combined pipe head (1), the combined pipe head (1) is a round tube structure with two openings at both ends and one end thicker than the other end, the thin end being inserted into the inspection hole of the sewage pipe and fixedly connected to the sewage pipe; A first cover body (2), the first cover body (2) is arranged in the combined pipe head (1), and has a structure with one end thick and the other end thin that matches the combined pipe head (1), and the thin end of the first cover body (2) is threadedly connected to the thin end of the combined pipe head (1), and a receiving groove (3) is provided at the thick end of the first cover body (2), and the inner diameter of the receiving groove (3) is larger than the inner diameter of the sewage discharge pipe; Lead sheets (4), at least one of the lead sheets (4) is placed in the receiving groove (3), and the lead sheet (4) matches the receiving groove (3); A second cover body (5), the second cover body (5) is arranged to cover an end of the first cover body (2) away from the sewage pipe.

2. The radioactive sewage pipe inspection port device according to claim 1, characterized in that: An inner pressure cover (12) is arranged in the receiving groove (3), the inner pressure cover (12) is located on a side of the lead sheet (4) away from the sewage discharge pipe, and the inner pressure cover (12) is connected to the first cover body (2).

3. The radioactive sewage pipe inspection port device according to claim 2, characterized in that: The inner wall of the containing groove (3) is provided with a plurality of snap rings, and the inner pressure cover (12) can be selectively snap-connected with one of the snap rings.

4. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: The upper end surfaces of the combined pipe head (1) and the first cover body (2) are located in the same plane and are flush with the upper surface of the ground layer (8) or the surface of the wall layer (10).

5. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: An operating port (6) is integrally provided at one end of the first cover body (2) away from the sewage discharge pipe, the inner diameter of the operating port (6) is equal to or greater than the inner diameter of the thick end of the first cover body (2), and the outer diameter of the operating port (6) is equal to or greater than the outer diameter of the thick end of the first cover body (2).

6. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: At least two clamping grooves (13) are provided on the inner wall of the containing groove (3), and the clamping grooves (13) are distributed in the form of a ring array.

7. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: The first cover body (2) is bonded to the combined pipe head (1) by an adhesive.

8. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: The combined pipe head (1) is made of PVC material.

9. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: The first cover body (2) is made of stainless steel.

10. The radioactive sewage pipe inspection port device according to any one of claims 1 to 3, characterized in that: The second cover body (5) is made of stainless steel.

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