Heat exchanger joint with self-locking function

By introducing a limiting mechanism into the heat exchanger joint, the problem of joint loosening under high temperature, high pressure or vibration is solved, a self-locking function is achieved, connection stability and sealing are improved, and maintenance frequency and safety hazards are reduced.

CN224398453UActive Publication Date: 2026-06-23WUXI XINBAISHI PRECISION MASCH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI XINBAISHI PRECISION MASCH CO LTD
Filing Date
2025-07-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing heat exchanger joints are prone to loosening under high temperature, high pressure or vibration conditions, leading to seal failure and fluid leakage, increasing maintenance frequency and safety hazards, and lacking self-locking function.

Method used

A heat exchanger joint with a limiting mechanism was designed. Through components such as gears, adjusting discs, adjusting rods and motors, the joint and pipeline are self-locking, ensuring connection stability.

Benefits of technology

Even with loose bolts, the limiting mechanism can improve the connection stability between the joint and the pipeline, prevent a decrease in sealing performance, and enhance the stability and safety of the heat exchanger.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224398453U_ABST
    Figure CN224398453U_ABST
Patent Text Reader

Abstract

The utility model relates to heat exchanger joint technical field especially relates to a heat exchanger joint with self -locking function. Including heat exchanger joint body, the arc surface of heat exchanger joint body is equipped with limiting mechanism, the limiting mechanism includes gear, the arc surface rotation of gear inner wall is connected with heat exchanger joint body, and one side fixed connection of gear has the adjusting disc, the one side of adjusting disc is provided with three adjusting grooves, the adjusting groove is connected with adjusting lever in sliding, the arc surface one end fixed connection of adjusting lever has electric push rod. The utility model provides a heat exchanger joint with self -locking function has heat exchanger joint and pipeline through bolt connection, limiting mechanism can extrude the connecting place to improve the stability of joint and pipeline contact, and bolt can more effectively fix together, enhance the fixed effect, and improve the sealing of contact place, thereby the stability of the whole heat exchanger in the use process is promoted the advantage of.
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Description

Technical Field

[0001] This utility model relates to the field of heat exchanger joint technology, and in particular to a heat exchanger joint with a self-locking function. Background Technology

[0002] Heat exchanger joints are the parts that connect pipes and are mainly used to transfer heat to the medium, ensuring that fluids can smoothly enter and exit various parts of the heat exchanger.

[0003] Utility model patent CN222849877U discloses a heat exchanger connector. The key technical points are: a drive assembly is installed at the bottom of the filter chamber. When the filter plate on one side of the inner sliding cylinder intercepts large particles of impurities in the heat exchange medium, a motor can be started, causing the motor output to drive the rotating shaft and the abutment plate to rotate horizontally. This causes the abutment plate to repeatedly and intermittently contact the movable block. Under the elastic action of the spring coil at the connection between the fixed block and the movable block, the inner sliding cylinder slides rapidly back and forth within the wall cavity. This design allows large particles of impurities attached to the front of the filter plate to be detached from the front of the filter plate due to the rapid back and forth sliding of the inner sliding cylinder. This design eliminates the need for personnel to disassemble and clean the filter plate during use, thus preventing the adhesion of large particles of impurities to the filter plate surface and ensuring that the flow rate of the heat exchange medium is not affected and does not decrease.

[0004] Regarding the above-mentioned issues, the following technical defects exist: Heat exchanger joints refer to the parts of a heat exchanger used to connect pipes, typically used to transfer heat to the medium. Heat exchanger joints ensure that fluid can smoothly enter and exit all parts of the heat exchanger. However, existing heat exchanger joints have drawbacks in use. They lack a self-locking function. While bolted connections offer good short-term stability, they become loose during long-term use, particularly under conditions of high temperature, high pressure, or vibration. The lack of a locking function leads to loosening between the joint and the pipe, increasing the risk of seal failure and fluid leakage. This affects the normal operation and heat exchange efficiency of the heat exchanger. Over time, loose joints also increase maintenance frequency and difficulty, creating safety hazards.

[0005] Therefore, it is necessary to provide a new type of heat exchanger joint with a self-locking function to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing heat exchanger joints in the prior art. These joints lack self-locking functionality. While bolted connections offer good short-term stability, they become loose over time, particularly under conditions of high temperature, high pressure, or vibration. The lack of a locking mechanism leads to loosening between the joint and the pipe, increasing the risk of seal failure and fluid leakage. This negatively impacts the normal operation and heat exchange efficiency of the heat exchanger. Furthermore, the loosening increases maintenance frequency and difficulty, creating additional safety hazards.

[0007] To solve the above technical problems, this utility model provides a heat exchanger connector with a self-locking function, comprising: a heat exchanger connector body, a limiting mechanism provided on the arc surface of the heat exchanger connector body, the limiting mechanism including a gear, the inner wall of the gear being rotatably connected to the arc surface of the heat exchanger connector body, an adjusting plate fixedly connected to one side of the gear, three adjusting grooves opened on one side of the adjusting plate, adjusting rods slidably connected in the adjusting grooves, an electric actuator fixedly connected to one end of the arc surface of the adjusting rod, a limiting block fixedly connected to the output end of the electric actuator, a limiting rod slidably passing through the inner wall of the motor, a fixed plate fixedly connected to the same fixed side of the three limiting rods close to each other, the fixed plate being fixedly connected to the arc surface of the heat exchanger connector body, a rack meshing with the tooth surface of the gear, a fixed plate fixedly connected to the side of the heat exchanger connector body near the rack, a motor fixedly connected to one side of the fixed plate, a drive rod fixedly connected to the output end of the motor, a connecting ring threadedly connected to the arc surface of the drive rod, and one end of the arc surface of the connecting ring being fixedly connected to one side of the rack.

[0008] The aforementioned components achieve the following effect: The heat exchanger joint body, referring to the part of the heat exchanger used to connect pipes, is typically used to transfer heat to the medium. The heat exchanger joint body ensures that fluid can smoothly enter and exit all parts of the heat exchanger. However, existing heat exchanger joint bodies have drawbacks in use. The heat exchanger joint body itself lacks a self-locking function. While the bolted connection provides good short-term stability, it can loosen over long-term use, especially under conditions of high temperature, high pressure, or vibration. The lack of a locking function can cause the heat exchanger joint body to... Loose connections between pipes increase the risk of seal failure, leading to fluid leakage and affecting the normal operation and heat exchange efficiency of the heat exchanger. Over time, loose connections also increase maintenance frequency and difficulty, creating safety hazards. In such cases, after connecting the heat exchanger joint body to the pipe with bolts, a limiting mechanism can be used to limit the connection between the two. This limiting mechanism can improve the stability of the connection between the heat exchanger joint body and the pipe. Even if the bolts are loose, the limiting mechanism can still improve the stability of the connection between the heat exchanger joint body and the pipe, preventing a decrease in the sealing between the two and affecting the stability of the heat exchanger's operation.

[0009] Preferably, a protective shell is fixedly connected to the side of the fixing plate near the motor, and the protective shell is circular.

[0010] The effect achieved by the above components is that the surface of the motor is relatively fragile, and the motor can be protected by a protective shell.

[0011] Preferably, the same auxiliary rod is fixedly connected to both sides of the inner wall of the adjusting groove, and the auxiliary rod slides through the inner wall of the adjusting rod.

[0012] The effect achieved by the above components is that the auxiliary rod can improve the stability of the adjusting rod sliding within the adjusting groove.

[0013] Preferably, a contact pad is fixedly connected to one side of the limiting block, and the contact pad is arc-shaped.

[0014] The effect achieved by the above components is that the contact pad can improve the stability of the pipe limit block during contact and avoid wear.

[0015] Preferably, a connecting hole is provided on one side of the rack, and a guide rod slides through the inner wall of the connecting hole. One end of the arc surface of the guide rod is fixedly connected to one side of the fixing plate.

[0016] The effect achieved by the above components is that the guide rod slides within the connecting hole, which improves the stability of the rack movement.

[0017] Preferably, the arc surface of the protective shell is provided with a plurality of heat dissipation holes, and the plurality of heat dissipation holes are evenly distributed on the protective shell.

[0018] The effect achieved by the above components is that the heat dissipation holes can dissipate the heat generated by the motor during operation.

[0019] Preferably, the adjusting rod is a steel rod.

[0020] The above-mentioned components achieve the following effects: the steel adjustment rod has a relatively hard surface, is less prone to deformation even after long-term use, and has a good service life.

[0021] Compared with related technologies, the heat exchanger joint with self-locking function provided by this utility model has the following advantages:

[0022] This utility model provides a heat exchanger joint with a self-locking function. By setting a limiting mechanism, after the heat exchanger joint and the pipeline are connected by bolts, the limiting mechanism can squeeze the connection, thereby improving the stability of the contact between the joint and the pipeline. In this way, the bolts can more effectively fix the two together, enhance the fixing effect, and improve the sealing of the contact, thereby improving the stability of the entire heat exchanger during use. Attached Figure Description

[0023] Figure 1 A schematic diagram of the structure of a heat exchanger joint with self-locking function provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structure of the limiting mechanism.

[0025] Figure 3 for Figure 1 A partial structural schematic diagram of the limiting mechanism shown;

[0026] Figure 4 for Figure 1 A partial structural schematic diagram of the limiting mechanism is shown below;

[0027] Figure 5 for Figure 4 The enlarged view of point A shown.

[0028] The following are the labeling elements in the diagram: 1. Heat exchanger connector body; 2. Limiting mechanism; 201. Gear; 202. Adjusting disc; 203. Adjusting groove; 204. Adjusting rod; 205. Electric actuator; 206. Limiting block; 207. Rack; 208. Motor; 209. Drive rod; 210. Connecting ring; 211. Guide rod; 212. Connecting hole; 213. Protective shell; 214. Heat dissipation hole; 215. Contact pad; 216. Auxiliary rod; 217. Fixing plate; 218. Fixing disc; 219. Limiting rod. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figures 1 to 5 The present invention provides a heat exchanger connector with a self-locking function, comprising: a heat exchanger connector body 1, wherein a limiting mechanism 2 is provided on the arc surface of the heat exchanger connector body 1.

[0032] In the embodiments of this utility model, please refer to Figures 2 to 5The limiting mechanism 2 includes a gear 201. The inner wall of the gear 201 is rotatably connected to the arc surface of the heat exchanger joint body 1. An adjusting plate 202 is fixedly connected to one side of the gear 201. Three adjusting grooves 203 are opened on one side of the adjusting plate 202. An adjusting rod 204 is slidably connected in the adjusting grooves 203. An electric push rod 205 is fixedly connected to one end of the arc surface of the adjusting rod 204. A limiting block 206 is fixedly connected to the output end of the electric push rod 205. A limiting rod 219 slides through the inner wall of the motor 208. The same fixed plate 218 is fixedly connected to the side of the three limiting rods 219 that are close to each other. The fixed plate 218 is fixedly connected to the arc surface of the heat exchanger joint body 1. A rack 207 meshes with the tooth surface of the gear 201. The heat exchanger joint body 1 is close to the rack. A fixing plate 217 is fixedly connected to one side of 207, and a motor 208 is fixedly connected to one side of the fixing plate 217. A drive rod 209 is fixedly connected to the output end of the motor 208. A connecting ring 210 is threadedly connected to the arc surface of the drive rod 209. One end of the arc surface of the connecting ring 210 is fixedly connected to one side of the rack 207. The heat exchanger joint body 1 refers to the part of the heat exchanger used to connect pipes, usually used for the medium that transfers heat. The heat exchanger joint body 1 can ensure that the fluid can smoothly enter and exit various parts of the heat exchanger. However, the existing heat exchanger joint body 1 has drawbacks in use. The heat exchanger joint body 1 itself does not have a self-locking function. After the heat exchanger joint body 1 is connected by bolts, the stability of the bolt connection is very good in the short term. However, during long-term use, especially under conditions of high temperature, high pressure, or vibration, the bolts may loosen. The lack of a locking function in the heat exchanger joint body 1 can lead to loosening between the heat exchanger joint body 1 and the pipeline, increasing the risk of seal failure and causing fluid leakage. This affects the normal operation and heat exchange efficiency of the heat exchanger. Over time, the loose joint also increases the frequency and difficulty of maintenance, increasing safety hazards. In this case, after connecting the heat exchanger joint body 1 to the pipeline with bolts, a limiting mechanism 2 can be used to limit the connection between the two. This limiting mechanism 2 can improve the stability of the connection between the heat exchanger joint body 1 and the pipeline, ensuring stability even if the bolts loosen. To ensure the stability of the connection between the heat exchanger joint body 1 and the pipeline and prevent a decrease in the sealing between the two, which would affect the stability of the heat exchanger's operation, a protective shell 213 is fixedly connected to the side of the fixing plate 217 near the motor 208. The protective shell 213 is circular, and since the surface of the motor 208 is relatively fragile, the protective shell 213 can protect the motor 208. The same auxiliary rod 216 is fixedly connected to both sides of the inner wall of the adjusting groove 203. The auxiliary rod 216 slides through the inner wall of the adjusting rod 204, and the auxiliary rod 216 can improve the stability of the adjusting rod 204 sliding in the adjusting groove 203. A contact pad 215 is fixedly connected to one side of the limiting block 206. The contact pad 215 is arc-shaped, and the contact pad 215 can improve the stability when the pipeline limiting block 206 contacts the pipe.To prevent wear, a connecting hole 212 is provided on one side of the rack 207. A guide rod 211 slides through the inner wall of the connecting hole 212. One end of the arc surface of the guide rod 211 is fixedly connected to one side of the fixing plate 217. The guide rod 211 slides within the connecting hole 212, which improves the stability of the rack 207 during movement. Several heat dissipation holes 214 are provided on the arc surface of the protective shell 213. These holes are evenly distributed on the protective shell 213 and can dissipate the heat generated by the motor 208. The adjusting rod 204 is made of steel. The steel adjusting rod 204 has a relatively hard surface and is less prone to deformation even after long-term use, resulting in a longer service life.

[0033] The working principle of the heat exchanger joint with self-locking function provided by this utility model is as follows: When it is necessary to lock the connection position between the heat exchanger joint body 1 and the pipeline, the motor 208 installed on the fixing plate 217 is started. The motor 208 drives the drive rod 209 to move. The movement of the drive rod 209 drives the rack 207 to move through the connecting ring 210. Thus, the rack 207 drives the gear 201 to rotate on the arc surface of the heat exchanger joint body 1. At this time, the gear 201 drives the adjusting plate 202 to move. The movement of the adjusting plate 202 drives the adjusting rod 204 to move along the direction of the adjusting groove 203, which drives the electric push rod 205 to move and drives the limiting block 206 to move. When the electric push rod 205 contacts the arc surface of the heat exchanger joint body 1, the electric push rod 205 can be activated. The movement of the electric push rod 205 can drive the limiting block 206 to move. Thus, the limiting block 206 can squeeze one side of the pipeline. The limiting mechanism 2 can improve the stability of the connection between the heat exchanger joint body 1 and the pipeline.

[0034] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0035] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heat exchanger joint with self-locking function, characterized in that, include: The heat exchanger connector body (1) and the motor (208) are provided with a limiting mechanism (2) on the arc surface of the heat exchanger connector body (1). The limiting mechanism (2) includes a gear (201). The inner wall of the gear (201) is rotatably connected to the arc surface of the heat exchanger connector body (1). An adjusting plate (202) is fixedly connected to one side of the gear (201). Three adjusting grooves (203) are opened on one side of the adjusting plate (202). An adjusting rod (204) is slidably connected in the adjusting groove (203). An electric push rod (205) is fixedly connected to one end of the arc surface of the adjusting rod (204). A limiting block (206) is fixedly connected to the output end of the electric push rod (205). The inner wall of the motor (208) slides through the limiting block. Positioning rods (219), the three positioning rods (219) are fixedly connected to the same fixed plate (218) on the side close to each other, the fixed plate (218) is fixedly connected to the arc surface of the heat exchanger joint body (1), the gear (201) meshes with the rack (207) on the tooth surface, the heat exchanger joint body (1) is fixedly connected to the side close to the rack (207) on the side, the fixed plate (217) is fixedly connected to the side of the fixed plate (217) and the motor (208) is fixedly connected to the side of the output end of the motor (208) and the drive rod (209) is fixedly connected to the arc surface of the drive rod (209) and the connecting ring (210) is threadedly connected to the arc surface of the connecting ring (210) and one end of the arc surface of the connecting ring (210) is fixedly connected to one side of the rack (207).

2. The heat exchanger joint with self-locking function according to claim 1, characterized in that, The fixed plate (217) is fixedly connected to a protective shell (213) on the side near the motor (208), and the protective shell (213) is circular.

3. The heat exchanger joint with self-locking function according to claim 1, characterized in that, The same auxiliary rod (216) is fixedly connected to both sides of the inner wall of the adjustment groove (203), and the auxiliary rod slides through the inner wall of the adjustment rod (204).

4. The heat exchanger joint with self-locking function according to claim 1, characterized in that, A contact pad (215) is fixedly connected to one side of the limiting block (206), and the contact pad (215) is arc-shaped.

5. The heat exchanger joint with self-locking function according to claim 1, characterized in that, A connecting hole (212) is provided on one side of the rack (207), and a guide rod (211) slides through the inner wall of the connecting hole (212). One end of the arc surface of the guide rod (211) is fixedly connected to one side of the fixing plate (217).

6. The heat exchanger joint with self-locking function according to claim 2, characterized in that, The protective shell (213) has a plurality of heat dissipation holes (214) on its arc surface, and the plurality of heat dissipation holes (214) are evenly distributed on the protective shell (213).

7. The heat exchanger joint with self-locking function according to claim 1, characterized in that, The adjusting rod (204) is a steel rod.