Constructional engineering water supply and drainage heating and ventilation reserved sleeve device

Abstract

The utility model relates to the technical field of constructional engineering, in particular to a constructional engineering water supply, drainage, heating and ventilation reserved sleeve device which comprises a reserved sleeve, two mounting plates are arranged on the outer wall of the reserved sleeve, the two mounting plates are arranged on the same cross section of the reserved sleeve, and the two mounting plates are symmetrically distributed. A mounting hole is formed in the surface of the mounting plate, and the inner ring wall of the mounting hole is a threaded surface. When the reserved sleeve is used for installing the heating and ventilation pipe, the heating and ventilation pipe can be stably installed in a wall body, the reserved sleeve is also composed of a multi-layer structure, and the outer layer structure made of stainless steel materials can have enough compressive strength and good corrosion resistance. The waterproof layer made of the high-density polyethylene material can prevent leaked water from corroding the wall body when leakage occurs in the local position of the heating and ventilation pipe, and the heat preservation layer made of the polyurethane foam material can reduce heat conduction of the wall body and heat conveying loss when the heating and ventilation pipe conveys heat.

Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a pre-installed sleeve device for water supply, drainage and HVAC in building engineering. Background Technology

[0002] Drainage and heating / ventilation systems are two important components of building engineering, responsible for the building's drainage and heating needs, respectively.

[0003] In building construction, water supply, drainage, and HVAC systems require pre-installed sleeves in the building structure to allow pipes to pass smoothly through walls, floors, and other structures. The design and installation of these pre-installed sleeve devices need to consider multiple factors to ensure the system's safety and functionality. For example, Chinese Patent Publication No. CN213710379U provides a pre-installed sleeve device for water supply, drainage, and HVAC systems, relating to the field of building equipment technology. This utility model includes an outer sleeve, a first reinforcing mechanism, and a second reinforcing mechanism. The first and second reinforcing mechanisms are threadedly connected and located at opposite ends of the outer sleeve. The first reinforcing mechanism includes a first plug and a handle. A support rod is fixed to one surface of the handle, and the other end of the support rod passes through the first plug and is fixed with a first bevel gear. This utility model uses a first reinforcement mechanism and a second reinforcement mechanism to reinforce and support the thin-walled outer tube, enabling the outer tube to effectively support and reinforce the reserved hole, ensuring the stability and safety of the reserved hole shape. Furthermore, the first plug in the first reinforcement mechanism and the second plug in the second reinforcement mechanism work together to not only seal both ends of the outer tube, but also further reinforce both ends of the outer tube.

[0004] Currently, most of the sleeves reserved for drainage and HVAC pipes have a simple structure, which is basically a pipe sleeve structure to facilitate the fixing of HVAC pipes. After being embedded in the wall, if the HVAC pipes running through it crack, if it is not detected in time, it is easy to cause the wall to become damp due to long-term leakage. At the same time, the connection between the external interface and the HVAC pipe is filled with sealant after it is brought out through the wall. However, with long-term use, the sealant ages quickly. If leakage occurs at the connection due to thermal expansion and contraction, it will cause inconvenience to the user. Utility Model Content

[0005] The purpose of this utility model is to solve the above-mentioned shortcomings of the existing technology and to propose a pre-installed sleeve device for water supply, drainage and HVAC in building engineering.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] Design a pre-installed sleeve device for water supply, drainage, heating and ventilation in building engineering, including a pre-installed sleeve, an installation plate is provided on the outer wall of the pre-installed sleeve, two installation plates are provided at the same cross-section of the pre-installed sleeve and the two installation plates are symmetrically distributed, and the surface of the installation plate is provided with an installation hole, the inner wall of the installation hole is a threaded surface;

[0008] The reserved sleeve has a heating and ventilation pipe that runs through and wraps inside. Both ends of the heating and ventilation pipe extend outward through the inside of the reserved sleeve. The end flange of the heating and ventilation pipe is connected to an external interface, which is a right-angle bend structure.

[0009] The connection between the HVAC pipe and the external interface is covered with a sealing sleeve. The inner wall of the sealing sleeve has an annular groove 1 and an annular groove 2 at both ends. The annular groove 1 is filled with a sealing ring 1. The inner wall of the sealing ring 1 is pressed tightly against the outer wall of the HVAC pipe. The annular groove 2 is filled with a sealing ring 2. The inner wall of the sealing ring 2 is pressed tightly against the outer wall of the external interface. Both the sealing ring 1 and the sealing ring 2 are made of water-swellable rubber material.

[0010] In detail, two mounting plates located on the same cross-section form a group, and three groups are set along the length of the reserved sleeve, with adjacent groups being equidistantly distributed.

[0011] In detail, the reserved sleeve consists of an outer layer, a waterproof layer, a thermal insulation layer and an inner lining layer from the outside to the inside. The waterproof layer is bonded to the inner wall of the outer layer with resin adhesive, the thermal insulation layer is bonded to the inner wall of the waterproof layer with resin adhesive, and the inner lining layer is bonded to the inner wall of the thermal insulation layer with resin adhesive.

[0012] In detail, the outer layer is made of stainless steel.

[0013] In detail, the waterproof layer is made of high-density polyethylene material.

[0014] In detail, the insulation layer is made of polyurethane foam material.

[0015] In detail, the inner lining is made of polyvinyl chloride material.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. When pre-embedding the reserved sleeve, a sufficient groove is opened in the wall. Then, the reserved sleeve is embedded into the wall. By screwing through the mounting holes on the mounting plate, the reserved sleeve with the HVAC pipe can be fixed in the wall, ensuring the stable installation of the HVAC pipe. When it is needed for use, the external interface is connected to the end flange of the HVAC pipe. The external interface with a right-angle bend can be led out horizontally, which facilitates stable connection of external pipes. At the connection position between the external interface and the HVAC pipe, a sealing sleeve is used for auxiliary wrapping. The sealing sleeve has a sealing ring structure at the connection positions with the HVAC pipe and the external interface. Utilizing the property of water-swellable rubber material, it can play an auxiliary sealing role in case of leakage at the joint.

[0018] 2. As described in point 1, when installing HVAC pipes, the pre-installed sleeve not only allows the HVAC pipes to be stably installed in the wall, but the pre-installed sleeve itself also adopts a multi-layer structure. Its outer layer, made of stainless steel, has sufficient compressive strength and good corrosion resistance. The waterproof layer made of high-density polyethylene can prevent water leakage from eroding the wall when local leakage occurs in the HVAC pipes. The insulation layer made of polyurethane foam can reduce heat conduction through the wall and prevent heat loss when the HVAC pipes are transporting heat. The inner lining made of polyvinyl chloride also has a waterproof effect and high durability, providing waterproof and wear-resistant protection for the polyurethane foam insulation layer. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the external interface of this utility model and the HVAC pipe;

[0021] Figure 3 This is a schematic diagram of the front structure of the sealing sleeve of this utility model;

[0022] Figure 4 This is an enlarged schematic diagram of point A in this utility model;

[0023] Figure 5 This is a schematic diagram of the distribution of the reserved sleeve structure of this utility model.

[0024] In the diagram: 1. Reserved sleeve; 11. Mounting plate; 12. Mounting hole; 13. HVAC pipe; 14. External interface; 15. Sealing sleeve; 16. Annular groove one; 17. Sealing ring one; 18. Annular groove two; 19. Sealing ring two; 2. Outer layer; 21. Waterproof layer; 22. Insulation layer; 23. Inner lining layer. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-5 A pre-installed sleeve device for water supply, drainage and HVAC in building engineering includes a pre-installed sleeve 1. An installation plate 11 is provided on the outer wall of the pre-installed sleeve 1. Two installation plates 11 are provided at the same cross-section of the pre-installed sleeve 1, and the two installation plates 11 are symmetrically distributed. An installation hole 12 is opened on the surface of the installation plate 11, and the inner wall of the installation hole 12 is a threaded surface.

[0027] The interior of the reserved sleeve 1 is filled with a heating and ventilation pipe 13. Both ends of the heating and ventilation pipe 13 extend outward through the interior of the reserved sleeve 1. The end flange of the heating and ventilation pipe 13 is connected to an external interface 14, which is a right-angle bend structure.

[0028] The connection between the HVAC pipe 13 and the external interface 14 is covered by a sealing sleeve 15. The inner wall of the sealing sleeve 15 has an annular groove 16 and an annular groove 18 at both ends. The annular groove 16 is filled with a sealing ring 17. The inner wall of the sealing ring 17 is pressed tightly against the outer wall of the HVAC pipe 13. The annular groove 18 is filled with a sealing ring 19. The inner wall of the sealing ring 19 is pressed tightly against the outer wall of the external interface 14. Both the sealing ring 17 and the sealing ring 19 are made of water-swellable rubber material.

[0029] It should be further noted that two mounting plates 11 located on the same cross section form a group, and three groups are set along the length of the reserved sleeve 1, with adjacent groups being equidistantly distributed.

[0030] It should be further explained that the reserved sleeve 1 consists of an outer layer 2, a waterproof layer 21, an insulation layer 22, and an inner lining layer 23 from the outside to the inside. The waterproof layer 21 is bonded to the inner wall of the outer layer 2 with resin adhesive. The insulation layer 22 is bonded to the inner wall of the waterproof layer 21 with resin adhesive. The inner lining layer 23 is bonded to the inner wall of the insulation layer 22 with resin adhesive. Through the multi-layer structure of the reserved sleeve 1, it can be used in the HVAC pipe 13 and has a good protective effect.

[0031] It should be further noted that the outer layer 2 is made of stainless steel. Stainless steel contains chromium, which can form a dense chromium oxide film on the surface, effectively preventing corrosion. Stainless steel has good resistance to chemicals such as acids, alkalis, and salts, and is suitable for various corrosive environments. Stainless steel has high strength and hardness, and can withstand greater pressure and impact. Stainless steel has a smooth surface and good wear resistance, making it suitable for applications with severe wear.

[0032] It should be further noted that the waterproof layer 21 is made of high-density polyethylene material, which has extremely low water permeability and can effectively prevent water penetration. It has good resistance to most chemicals such as acids, alkalis, and salts, making it suitable for various corrosive environments. It has high tensile strength and impact resistance, and can withstand greater pressure and impact. It does not release harmful substances during production and use, making it environmentally friendly.

[0033] It should be further noted that the insulation layer 22 is made of polyurethane foam material, which has an extremely low thermal conductivity, effectively preventing heat transfer and providing excellent insulation effect. It has a closed-cell structure, which can prevent moisture penetration and maintain its insulation performance. It has high compressive strength and impact resistance, can withstand greater pressure and impact, and has good resistance to most chemicals such as acids, alkalis, and salts.

[0034] It should be further noted that the inner lining layer 23 is made of polyvinyl chloride, which has good resistance to most acids, alkalis, salts and other chemicals, good resistance to many organic solvents, high tensile strength and impact resistance, can withstand greater pressure and impact, has a smooth surface and good wear resistance, and is suitable for applications with severe wear.

[0035] Working method: When the reserved sleeve 1 needs to be pre-embedded, a sufficient groove is opened in the wall, and then the reserved sleeve 1 is embedded into the wall. By screwing through the mounting hole 12 on the mounting plate 11, the reserved sleeve 1 with the HVAC pipe 13 can be fixed in the wall to ensure the stable installation of the HVAC pipe 13. When it is needed for use, the external interface 14 is connected to the end flange of the HVAC pipe 13. The external interface 14, which has a right-angle bend, can be led out horizontally to facilitate stable connection of external pipes. At the connection position between the external interface 14 and the HVAC pipe 13, the sealing sleeve 15 is used for auxiliary wrapping. The sealing sleeve 15 is provided with a sealing ring structure at the connection position between the HVAC pipe 13 and the external interface 14. Through the property of water-swellable rubber material, it can play an auxiliary sealing role when leakage occurs at the joint.

[0036] When installing the HVAC pipe 13, the pre-installed sleeve 1 not only allows the HVAC pipe 13 to be stably installed in the wall, but the pre-installed sleeve 1 itself is also composed of a multi-layer structure. Its outer layer 2, made of stainless steel, has sufficient compressive strength and good corrosion resistance. The waterproof layer 21, made of high-density polyethylene, can prevent water leakage from eroding the wall when the HVAC pipe 13 leaks in a local location. The insulation layer 22, made of polyurethane foam, can reduce heat conduction through the wall and reduce heat loss when the HVAC pipe 13 is transmitting heat. The inner lining layer 23, made of polyvinyl chloride, also has a waterproof effect and high durability, providing waterproof and wear-resistant protection for the insulation layer 22 made of polyurethane foam.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A building engineering water supply and drainage heating and ventilation reserved sleeve device, comprising a reserved sleeve (1), characterized in that: The outer wall of the reserved sleeve (1) is provided with mounting plates (11), two mounting plates (11) are provided at the same cross section of the reserved sleeve (1), and the two mounting plates (11) are symmetrically arranged, the surface of the mounting plate (11) is provided with a mounting hole (12), and the inner wall of the mounting hole (12) is a threaded surface; The inside of the reserved sleeve (1) is wrapped with a heating pipe (13), the two ends of the heating pipe (13) extend outward through the inside of the reserved sleeve (1), and the end flanges of the heating pipe (13) are connected with external interfaces (14), and the external interfaces (14) are straight angle bending structures; The connection position of the heating pipe (13) and the external interface (14) is wrapped with a sealing sleeve (15), the inner wall of the sealing sleeve (15) is provided with annular grooves one (16) and two (18) at both ends, the inner part of the annular groove one (16) is filled with a sealing ring one (17), the inner wall of the sealing ring one (17) is tightly attached to the outer wall of the heating pipe (13), the inner part of the annular groove two (18) is filled with a sealing ring two (19), the inner wall of the sealing ring two (19) is tightly attached to the outer wall of the external interface (14), and the sealing ring one (17) and the sealing ring two (19) are made of water-swelling rubber material.

2. The plumbing, heating, and air conditioning reserved conduit device for construction work according to claim 1, characterized in that: The two mounting plates (11) located at the same cross section are a group, and three groups are arranged along the length direction of the reserved sleeve (1), and the adjacent groups are arranged at equal intervals.

3. The plumbing, heating, and air conditioning reserved conduit device of claim 1, wherein: The reserved sleeve (1) is composed of an outer layer (2), a waterproof layer (21), a heat preservation layer (22) and an inner lining layer (23) from outside to inside, the inner wall of the outer layer (2) is adhered with the waterproof layer (21) by resin glue, the inner wall of the waterproof layer (21) is adhered with the heat preservation layer (22) by resin glue, and the inner wall of the heat preservation layer (22) is adhered with the inner lining layer (23) by resin glue.

4. The plumbing and heating pipe sleeve device for building engineering according to claim 3, characterized in that: The outer layer (2) is made of stainless steel material.

5. The plumbing and heating pipe sleeve device for construction engineering according to claim 3, characterized in that: The waterproof layer (21) is made of high-density polyethylene material.

6. The plumbing, heating, and air conditioning reservation sleeve device for construction work according to claim 3, characterized in that: The heat preservation layer (22) is made of polyurethane foam material.

7. The plumbing, heating, and air conditioning reservation sleeve device for construction work according to claim 3, characterized in that: The inner lining layer (23) is made of polyvinyl chloride material.

Images