Radiation-proof PVC decorative pipe shell structure

Abstract

The utility model relates to the medical radiation protection room construction field, concretely is a kind of radiation protection PVC decorative pipe shell structure. Including a pair of semicircular and oppositely arranged prefabricated pipe shell on the outer periphery of blowdown pipe, prefabricated pipe shell is adhered between, prefabricated pipe shell includes the heat preservation layer, first lead plate layer and first PVC outer plate layer arranged from inside to outside, the outer periphery of two prefabricated pipe shell is provided with radiation protection sealing assembly, and fixed part is equipped between prefabricated pipe shell and radiation protection sealing assembly. Through the prefabricated semicircular pipe shell structure, the quick assembly of blowdown pipeline radiation shielding layer is realized, compared with the traditional lead plate layered construction technology, the structure adopts the lead plate layer and PVC outer plate layer complex body prefabricated in factory, effectively avoid the lead dust pollution generated by on-site metal cutting operation, significantly reduce the health risk of construction personnel.

Description

Technical Field

[0001] This utility model relates to the field of medical radiation protection room construction, specifically a radiation protection PVC decorative pipe shell structure. Background Technology

[0002] In the field of medical architecture, the protection engineering of sewage pipes in radiology departments has long faced the need for technological upgrades. With the continuous revision of the "Code for Design of General Hospital Buildings," higher standards have been set for the construction efficiency, environmental friendliness, and aesthetic presentation of radiation shielding materials. Traditional lead plate shielding requires on-site metal cutting and forming, which has inherent drawbacks such as high material loss rates and high labor intensity. Furthermore, lead dust diffusion may pose a potential hazard to the respiratory system of workers. In current engineering practice, the radiation shielding layer of sewage pipes often adopts a layered construction process, resulting in numerous structural joints and poor surface smoothness. This affects the stability of protective effectiveness and fails to meet the aesthetic requirements of integrated pipe decoration in modern medical spaces. Utility Model Content

[0003] The present invention aims to solve the above problems and thus provide a radiation-proof PVC decorative pipe shell structure that prevents the spread of lead dust on site.

[0004] The technical solution adopted by this utility model to solve the aforementioned problem is: A radiation-proof PVC decorative pipe shell structure includes a pair of semi-circular prefabricated pipe shells arranged opposite each other on the outer periphery of a sewage pipe. The prefabricated pipe shells are bonded together. Each prefabricated pipe shell includes an insulation layer, a first lead plate layer, and a first PVC outer plate layer arranged from the inside to the outside. Radiation-proof sealing components are provided on the outer periphery of the two prefabricated pipe shells, and fasteners are provided between the prefabricated pipe shells and the radiation-proof sealing components.

[0005] Compared with the prior art, the outstanding features of this utility model, which adopts the above technical solution, are: The prefabricated semi-circular pipe shell structure enables rapid assembly of the radiation shielding layer for sewage pipelines. Compared to the traditional lead plate layer construction process, this structure uses a composite of factory-prefabricated lead plate layers and PVC outer layers, effectively avoiding lead dust pollution from on-site metal cutting operations and significantly reducing the health risks to construction workers. The integrated pipe shell design reduces the number of structural joints, improving the stability of radiation shielding effectiveness. The PVC outer layer also integrates pipeline decoration and protection functions, meeting the aesthetic requirements of modern medical spaces. The accompanying radiation-proof sealing components and fasteners form a multi-layered sealing protection system, overcoming the performance fluctuations caused by uneven joints in traditional processes, while also reducing material waste and labor intensity during construction.

[0006] As a preferred embodiment, a further technical solution of this utility model is: Furthermore, a first expansion section is provided on one side of the prefabricated pipe shell, and two first expansion sections are respectively located on both sides of the sewage pipe. The radiation shielding sealing assembly includes a pair of arc-shaped and oppositely arranged protective elements, which are adhered to the outer wall of the prefabricated pipe shell. A second expansion section is provided on one side of the protective element, located outside the first expansion section. The side of the second expansion section away from its protective element is stepped, and its end abuts and is fixed to the end of the opposite protective element. The stepped fit of the first and second expansion sections forms a double-layer sealing structure, which not only improves the continuity of radiation shielding at the joint, but also enhances the tightness of the overall structure through the arc-shaped fit of the protective elements. The design of the stepped ends abutting each other further strengthens the protective continuity of the radiation shielding sealing assembly and avoids the fluctuation of protective performance caused by misalignment of the joint in traditional processes.

[0007] Furthermore, connecting bolts are axially spaced and fixed on the first lead plate layer away from the first expansion section of the prefabricated pipe shell. Through holes corresponding to the connecting bolts are opened on the first PVC outer plate layer, the first expansion section, and the second expansion section. Fastening nuts are screwed onto the rods of the connecting bolts located outside the through holes. The axially spaced connecting bolts penetrate the multi-layer structure through the through holes, and the fastening nuts on the outer sides achieve mechanical locking between the prefabricated pipe shell and the radiation-proof sealing assembly. The annular pressure plate evenly distributes the clamping force, avoiding localized stress concentration that could lead to deformation of the PVC layer. Simultaneously, the sealing nut design combines dust prevention and aesthetics.

[0008] Furthermore, the outer end of the fastening nut is in a sealed state, and an annular pressure plate is provided on the outer periphery of the inner side of the fastening nut to abut against the second expansion section, which can physically isolate the radiation path and prevent the PVC layer from deforming in conjunction with the annular pressure plate.

[0009] Furthermore, the protective component includes a second lead plate layer and a second PVC outer plate layer arranged from the inside out. The composite design of the second lead plate layer and the second PVC outer plate layer continues the integrated protection and decoration concept of the main structure.

[0010] Furthermore, the thickness of the second lead plate layer and the second PVC outer plate layer in the protective component is between 2-3mm. The thickness of 2-3mm balances the radiation shielding effectiveness and space occupancy, so that the protective component can maintain its lightweight characteristics while ensuring functionality.

[0011] Furthermore, the thickness of the insulation layer in the prefabricated pipe shell is between 19-21mm, and the thickness of the first lead plate layer and the first PVC outer plate layer is between 2-3mm. The 19-21mm thickness of the insulation layer provides the necessary thermal insulation performance, while the first lead plate layer and the PVC outer plate layer both adopt a standard thickness of 2-3mm, which not only meets the basic requirements of medical buildings for radiation protection, but also ensures the overall flexibility of the pipe shell to adapt to the fine-tuning needs during pipe installation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the prefabricated tube shell structure corresponding to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the protective component structure corresponding to an embodiment of the present utility model; Figure 3 This is a schematic diagram of the fastening nut structure according to an embodiment of the present utility model; The components are marked as follows: 1. Precast pipe shell, 11. First expansion section, 12. Insulation layer, 13. First lead plate layer, 14. First PVC outer plate layer, 2. Protective component, 2. Second expansion section, 21. Second lead plate layer, 22. Second PVC outer plate, 23. Connecting bolt, 3. Fastening nut. Detailed Implementation

[0013] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0014] A radiation-proof PVC decorative pipe shell structure includes a pair of semi-circular prefabricated pipe shells 1 arranged opposite each other on the outer periphery of a sewage pipe. The prefabricated pipe shells 1 are bonded together. Each prefabricated pipe shell 1 includes an insulation layer 12, a first lead plate layer 3, and a first PVC outer plate layer 14 arranged from the inside to the outside. Radiation-proof sealing components are provided on the outer periphery of the two prefabricated pipe shells 1. Fixing components are provided between the prefabricated pipe shells 1 and the radiation-proof sealing components. The layers of the prefabricated pipe shell 1 are bonded together with each other and between opposite sides of the prefabricated pipe shells 1 by ultraviolet-curing adhesive.

[0015] Furthermore, a first expansion section 11 is provided on one side of the precast pipe shell 1. The two first expansion sections 11 are located on both sides of the sewage pipe. The radiation protection sealing assembly includes a pair of arc-shaped and oppositely arranged protective members 12. The protective members 12 are adhered to the outer wall of the precast pipe shell 1. The protective members 12 are adhered to the outer wall of the precast pipe shell 1 by ultraviolet curing adhesive. A second expansion section 21 is provided on one side of the protective member 12, located outside the first expansion section 11. The side of the second expansion section 21 away from the protective member 12 is stepped and its end abuts and is fixed to the end of the opposite protective member 12. The stepped cooperation of the first expansion section 11 and the second expansion section 21 forms a double-layer sealing structure, which not only improves the continuity of radiation shielding at the joint, but also enhances the tightness of the overall structure through the arc-shaped fit of the protective members 12. The stepped end abutting design further enhances the protective connection of the radiation-proof sealing component, avoiding the fluctuation of protective performance caused by misalignment of joints in traditional processes. The layers of the protective component 12 are bonded together with each other and the second diameter expansion section 21 is bonded to the opposite end of the protective component 12 with ultraviolet-cured adhesive.

[0016] Furthermore, connecting bolts 3 are fixed axially at intervals on the first lead plate layer 3 on the side of the prefabricated shell 1 away from the first expansion section 11. Through holes corresponding to the connecting bolts 3 are opened on the first PVC outer plate layer 14, the first expansion section 11, and the second expansion section 21. Fastening nuts 4 are screwed onto the rod body of the connecting bolts 3 located outside the through holes. The axially spaced connecting bolts 3 penetrate the multi-layer structure through the through holes, and together with the outer fastening nuts 4, achieve mechanical locking between the prefabricated shell 1 and the radiation-proof sealing assembly. The annular pressure plate can evenly distribute the clamping force, avoiding localized stress concentration that could lead to deformation of the PVC layer. Simultaneously, the sealing nut design combines dust prevention and aesthetics.

[0017] Furthermore, the outer end of the fastening nut 4 is in a sealed state, and an annular pressure plate is provided on the outer periphery of the inner side of the fastening nut 4 to abut against the second expansion section 21, which can physically isolate the radiation path and prevent the PVC layer from deforming in conjunction with the annular pressure plate.

[0018] Furthermore, the protective component 12 includes a second lead plate layer 22 and a second PVC outer plate layer 23 arranged from the inside out. The composite design of the second lead plate layer 22 and the second PVC outer plate layer 23 continues the concept of integrated protection and decoration of the main structure.

[0019] Furthermore, the thickness of the second lead plate layer 22 and the second PVC outer plate layer 23 in the protective component 12 is between 2-3 mm. The thickness of 2-3 mm balances the radiation shielding effectiveness and space occupancy, so that the protective component 12 maintains its lightweight characteristics while ensuring functionality.

[0020] Furthermore, the thickness of the insulation layer 12 in the prefabricated pipe shell 1 is between 19-21mm, and the thickness of the first lead plate layer 3 and the first PVC outer plate layer 14 are both between 2-3mm. The thickness of the insulation layer 12 (19-21mm) provides the necessary thermal insulation performance, while the first lead plate layer 3 and the PVC outer plate layer both adopt a standard thickness of 2-3mm, which not only meets the basic requirements of radiation protection for medical buildings, but also ensures the overall flexibility of the pipe shell to adapt to the fine-tuning needs during pipe installation.

[0021] First, the semi-circular tube shell prefabricated in the factory is symmetrically wrapped around the outer periphery of the sewage pipe using UV-cured adhesive, avoiding lead dust pollution caused by traditional on-site cutting of lead plates. The joint of the first expansion section 11 is shielded. Then, the arc-shaped protective component 12 with the second lead plate layer 22 and the second PVC outer plate 23 is glued to the outer wall of the tube shell. The stepped interlocking of the first expansion section 11 and the second expansion section 21 forms a double-layer sealing structure. Finally, the connecting bolts 3 penetrate through each layer of the structure and are fastened with sealing nuts with annular pressure plates, achieving both mechanical locking and physical isolation of the radiation path.

[0022] The above description is only a preferred embodiment of the present utility model and does not limit the scope of the present utility model. All equivalent changes made based on the content of the present utility model specification and its drawings are included within the scope of the present utility model.

Claims

1. A radiation-proof PVC decorative pipe shell structure, characterized in that: It includes a pair of semi-circular prefabricated pipe shells arranged opposite each other on the outer periphery of the sewage pipe. The prefabricated pipe shells are bonded together. Each prefabricated pipe shell includes an insulation layer, a first lead plate layer, and a first PVC outer plate layer arranged from the inside to the outside. Radiation protection sealing components are provided on the outer periphery of the two prefabricated pipe shells. Fixing components are provided between the prefabricated pipe shells and the radiation protection sealing components.

2. The radiation-proof PVC decorative pipe shell structure according to claim 1, characterized in that: A first expansion section is provided on one side of the precast pipe shell. Two first expansion sections are located on both sides of the sewage pipe. The radiation protection sealing assembly includes a pair of arc-shaped and oppositely arranged protective members. The protective members are attached to the outer wall of the precast pipe shell. A second expansion section is provided on one side of the protective member, located outside the first expansion section. The side of the second expansion section away from the protective member is stepped and its end abuts against and is fixed to the end of the opposite protective member.

3. The radiation-proof PVC decorative pipe shell structure according to claim 2, characterized in that: Connecting bolts are fixed axially at intervals on the first lead plate layer on the side of the precast tube shell away from the first expansion section. Through holes opposite to the connecting bolts are opened on the first PVC outer plate layer, the first expansion section and the second expansion section. Fastening nuts are screwed onto the rod body outside the through holes of the connecting bolts.

4. The radiation-proof PVC decorative pipe shell structure according to claim 3, characterized in that: The outer end of the fastening nut is in a sealed state, and an annular pressure plate that abuts against the second expansion section is provided on the outer periphery of the inner side of the fastening nut.

5. The radiation-proof PVC decorative pipe shell structure according to claim 2, characterized in that: The protective component comprises a second lead plate layer and a second PVC outer plate layer arranged from the inside out.

6. The radiation-proof PVC decorative pipe shell structure according to claim 5, characterized in that: The thickness of the second lead plate layer and the second PVC outer plate layer in the protective components is between 2-3 mm.

7. The radiation-proof PVC decorative pipe shell structure according to claim 1, characterized in that: The thickness of the insulation layer in the prefabricated pipe shell is between 19-21mm, and the thickness of the first lead plate layer and the first PVC outer plate layer are both between 2-3mm.

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