A hot steam pipe connection
By designing a combination of fitting sleeve, fitting arm and telescopic device, the problem of stable connection of hot steam pipeline connectors under different angles and thermal expansion is solved, and stable adaptability in high temperature environment is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN SANYUAN INSTALLATION CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-12
AI Technical Summary
Existing hot steam pipe fittings are not adaptable enough to different angles and thermal expansion changes, and cannot provide a stable connection.
The design employs a combination of assembly components and connectors, including fitting sleeves, rotatable fitting arms, telescopic devices, and universal ball joints. Magnetic or adhesive strips enhance connection stability, and springs and movable notches enable dynamic adjustment to adapt to pipe changes at different angles.
It achieves a stable connection of hot steam pipelines under different angles and thermal expansion conditions, avoiding displacement or damage caused by temperature fluctuations, and improving the adaptability and stability of the connectors.
Smart Images

Figure CN224352526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe fittings technology, specifically a hot steam pipe connector. Background Technology
[0002] Hot steam pipe fittings are widely used in industrial applications, especially in the high-temperature and high-pressure environments of power plants and chemical plants, to connect and support steam pipe sections.
[0003] A search revealed that Chinese utility model patent application CN207936840U proposes "a pipe connector for a human body microenvironment cooling system." This connector features a water inlet and outlet on the first step, an inlet and outlet on one side, and a heat exchanger inlet and outlet on the bottom. The inlet is connected to the water inlet of the connector via a pipe, and the outlet is connected to the heat exchanger inlet via a pipe. The heat exchanger outlet is connected to the outlet. This design replaces the top cover of a self-priming water pump and allows the self-priming water pump and heat exchanger to be directly installed on both sides of the connector, saving space and reducing the use of connecting pipes.
[0004] However, in actual use, the aforementioned disclosed device and similar existing devices do not make appropriate adjustments for changes in the pipe angle, resulting in limited adaptability when dealing with hot steam pipes with different angles. Utility Model Content
[0005] The purpose of this invention is to provide a hot steam pipeline connector to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A hot steam pipe connector, comprising:
[0008] Two assembly components are used for mounting on the outside of two hot steam pipes with an included angle.
[0009] A connector is installed between the two assembly components;
[0010] The two assembly components and connectors mate to ensure that the angled hot steam pipes are securely connected in the angled state and to accommodate their thermal expansion changes;
[0011] The assembly component includes:
[0012] The fitting sleeve has symmetrically mounted rotatable fitting arms on its periphery, which are used to fit against the surface of the hot steam pipe.
[0013] The opening is located at the bottom solid structure of the fitting sleeve and is parallel to the axial direction of the inner cavity of the fitting sleeve.
[0014] The telescopic device is fixed inside the fitting sleeve, with the telescopic end passing through the movable notch and fixedly connected to one end of the connector.
[0015] Furthermore, the telescopic device includes: a spring, axially installed inside the fitting sleeve, one end fixed to one end of the inner wall of the fitting sleeve, and the other end fixed with a movable block adapted to the inner cavity; the telescopic end of the telescopic device is a spherical joint, fixed to the bottom of the movable block.
[0016] Furthermore, the surface of the fitting arm is provided with an assembly groove, which is selected from either a magnetic strip or an adhesive strip depending on the material of the hot steam pipe.
[0017] Furthermore, the connector includes two telescopic rods, one end of which is fixedly connected to a spherical joint within a corresponding assembly, and the other ends of the two telescopic rods are connected together by a universal ball joint.
[0018] Furthermore, the inner wall of the fitting sleeve is provided with a wear-resistant coating to reduce frictional loss during the movement of the telescopic device, and the universal ball joint is filled with high-temperature grease to ensure smooth rotation under thermal expansion.
[0019] Furthermore, the fitting sleeve has a positioning notch at one end of the movable notch position that is adapted to the movable block. The positioning notch is used to provide axial positioning and guidance when the movable block moves in extension and retraction, limit the range of motion and prevent radial displacement.
[0020] Compared with the prior art, the beneficial effects of this utility model are:
[0021] This hot steam pipe connector enhances connection stability through the tight fit between the fitting arm and the surface of the hot steam pipe, combined with the magnetic or adhesive strip in the assembly groove. At the same time, the spring and movable block in the telescopic device, combined with the guiding effect of the movable notch and the positioning notch, enable adjustment when facing pipes at different angles, thus ensuring the adaptability of the connector to a certain extent. Attached Figure Description
[0022] Figure 1 This is an isometric drawing of the present invention;
[0023] Figure 2 This is a diagram showing the external structure of the assembly components of this utility model;
[0024] Figure 3 This is a diagram showing the internal structure of the assembly components of this utility model.
[0025] In the diagram: 1. Universal ball joint; 2. Telescopic rod; 3. Assembly assembly; 301. Fitting sleeve; 302. Ball joint; 303. Positioning notch; 304. Assembly slot; 305. Spring; 306. Movable notch; 307. Fitting arm; 308. Movable block. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Before understanding the technical solution proposed in this application, it is important to understand that the application scenario for the hot steam pipeline connectors in this technical solution is steam pipeline connections in industrial thermal systems, especially in environments with angular deviations or thermal expansion requirements, such as high-temperature steam transmission pipelines in power plant boiler systems or chemical equipment. Figures 1-3 As shown, this solution includes: two assembly components 3, which are used to assemble on the outside of two hot steam pipes with an angle, to ensure that the pipes remain stable after installation and adapt to different angles; and a connector, which is installed between the two assembly components 3 to provide different connection methods. It should be noted that the two assembly components 3 cooperate with the connector to ensure that the hot steam pipes with an angle are stably connected in the angled state and adapt to their thermal expansion changes, effectively preventing displacement or damage caused by temperature fluctuations.
[0028] Specifically, in this solution, the assembly component 3 includes: a fitting sleeve 301, with rotatable fitting arms 307 symmetrically installed on its periphery. The fitting arms 307 are used to tightly fit the surface of the hot steam pipe to enhance the gripping force. A movable notch 306 is opened at the bottom solid structure of the fitting sleeve 301 and is parallel to the axial direction of the inner cavity of the fitting sleeve 301 to provide movement space for the telescopic component. A telescopic device is fixed inside the fitting sleeve 301, and the telescopic end passes through the movable notch 306 and is fixedly connected to one end of the connector to realize dynamic adjustment.
[0029] As a preferred embodiment, in this embodiment, the telescopic device includes: a spring 305, axially installed inside the fitting sleeve 301, one end fixed to one end of the inner wall of the fitting sleeve 301, and the other end fixed with a movable block 308 adapted to the inner cavity. The telescopic end of the telescopic device is a spherical joint 302, fixed to the bottom of the movable block 308. In addition, the surface of the fitting arm 307 is provided with an assembly groove 304. The assembly groove 304 is selected from either a magnetic strip or an adhesive strip according to the material of the hot steam pipe. The magnetic strip is suitable for metal pipes to provide strong adsorption, and the adhesive strip is suitable for non-metallic pipes to ensure a firm bond.
[0030] As a supplement to the above implementation scheme, the connector includes: two telescopic rods 2, one end of which is fixedly connected to a ball joint 302 in the corresponding assembly 3, and a universal ball joint 1 is installed between the other ends of the two telescopic rods 2, so as to be able to adapt to hot steam pipes at different angles.
[0031] As a preferred embodiment, in this embodiment, the inner wall of the fitting sleeve 301 is provided with a wear-resistant coating to reduce frictional loss during the movement of the telescopic device and extend the service life of the components. The universal ball joint 1 is filled with high-temperature grease to ensure smooth rotation under thermal expansion and avoid jamming. Finally, it should be noted that the fitting sleeve 301 has a positioning notch 303 at one end of the movable notch 306 that matches the movable block 308. The positioning notch 303 is used to provide axial positioning and guidance during the telescopic movement of the movable block 308, limit the range of movement and prevent radial displacement, and ensure accurate operation of the device.
[0032] It should be noted that, in the specific implementation of the technical solution proposed in this application, firstly, the two assembly components 3 are respectively fitted onto the outside of the two hot steam pipes to be connected. The operator rotates the fitting arm 307 to make its surface fit tightly against the outer wall of the pipe. The assembly groove 304 selects a magnetic strip (suitable for metal pipes) or an adhesive strip (suitable for non-metal pipes) according to the pipe material to ensure that the assembly component 3 is firmly fixed. Subsequently, the connecting piece is connected to the telescopic device of the assembly component 3 through the ball joint 302. Due to the axial compression or extension of the spring 305 inside the fitting sleeve 301, The movable block 308 is guided to move along the movable notch 306, thereby absorbing the axial displacement caused by the thermal expansion of the pipeline. At the same time, the universal ball joint 1 allows the two telescopic rods 2 to rotate freely in an angled state. With the help of high-temperature lubricating grease, the angle can be smoothly adjusted during thermal expansion. The wear-resistant coating reduces the friction loss of the movable block 308 on the inner wall of the fitting sleeve 301. The size of the movable notch 306 is designed to allow the maximum telescopic displacement range (e.g., ±10mm) to prevent radial offset. In addition, after installation, the entire connection maintains the stability of the pipeline connection under high-temperature conditions and avoids the risk of leakage.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.
Claims
1. A hot steam pipe connector, characterized in that, include: Two assembly components (3) are used for assembly on the outside of two hot steam pipes with an included angle; A connector is installed between the two assembly components (3); The two assembly components (3) cooperate with the connector to ensure that the hot steam pipes with the included angle are securely connected in the included angle state and to accommodate their thermal expansion changes; The assembly component (3) includes: The fitting sleeve (301) has rotatable fitting arms (307) symmetrically installed on its periphery. The fitting arms (307) are used to fit against the surface of the hot steam pipe. The movable notch (306) is opened at the bottom solid structure of the fitting sleeve (301) and is parallel to the axial direction of the inner cavity of the fitting sleeve (301); The telescopic device is fixed inside the fitting sleeve (301), and the telescopic end passes through the movable notch (306) and is fixedly connected to one end of the connector.
2. A hot steam pipe connector according to claim 1, characterized in that: The telescopic device includes: a spring (305) axially installed inside the fitting sleeve (301), one end of which is fixed to one end of the inner wall of the fitting sleeve (301), and the other end is fixed with a movable block (308) adapted to the inner cavity. The telescopic end of the telescopic device is a spherical joint (302) fixed to the bottom of the movable block (308).
3. A hot steam pipe connector according to claim 1, characterized in that: The surface of the fitting arm (307) is provided with an assembly groove (304), and the assembly groove (304) is selected from either a magnetic strip or an adhesive strip according to the material of the hot steam pipe.
4. A hot steam pipe connector according to claim 2, characterized in that: The connector includes two telescopic rods (2), one end of which is fixedly connected to a ball joint (302) in the corresponding assembly (3), and a universal ball joint (1) is installed between the other ends of the two telescopic rods (2).
5. A hot steam pipe connector according to claim 4, characterized in that: The inner wall of the fitting sleeve (301) is provided with a wear-resistant coating to reduce frictional loss during the movement of the telescopic device. The universal ball joint (1) is filled with high-temperature grease to ensure smooth rotation under thermal expansion.
6. A hot steam pipe connector according to claim 2, characterized in that: The fitting sleeve (301) has a positioning notch (303) at one end of the movable notch (306) that is adapted to the movable block (308). The positioning notch (303) is used to provide axial positioning and guidance when the movable block (308) moves in extension and retraction, limit the range of motion and prevent radial displacement.