High-voltage-resistant automotive cooling system pipe connection

Abstract

This invention belongs to the field of automotive parts technology, and specifically relates to a high-pressure resistant automotive cooling system pipe connector, comprising two cooling pipes and a connecting pipe disposed between the two cooling pipes. It also includes: a fixing mechanism disposed between the pipe walls of the cooling pipes and the connecting pipe for sealing and fixing the cooling pipes and the connecting pipe; a bracket fixedly disposed inside the connecting pipe, with a rotating shaft laterally rotatable inside the bracket, and an impeller fixedly disposed on the shaft wall; a wiping mechanism disposed at both ends of the rotating shaft, and the wiping mechanism contacts the connection between the inner walls of the cooling pipes and the inner walls of the connecting pipe; and an exhaust mechanism disposed on the upper side of the connecting pipe wall, with a pushing mechanism linked to the exhaust mechanism on the shaft wall. This invention can automatically clean the inner wall of the pipes, enhance bottom descaling, and periodically exhaust air, effectively inhibiting corrosion, reducing resistance, preventing air blockage, and significantly improving the pressure resistance and service life of the connector.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts technology, and in particular relates to a high-pressure resistant automotive cooling system pipe connector. Background Technology

[0002] As a core component ensuring stable engine operation, the sealing performance and structural strength of the pipeline connectors of the automotive cooling system directly affect the reliability of the entire vehicle operation, such as the automotive cooling system pipeline connector disclosed in announcement number CN117419230B.

[0003] Currently, automotive cooling system piping connections commonly use connecting pipes to achieve connectivity and sealing. During long-term use, the coolant continuously circulates within the pipes, and its chemical components, impurities, and aging products can continuously corrode the inner wall of the connecting pipe. This is especially noticeable at pipe connection points, where fluid disturbance is more pronounced, leading to corrosion, pitting, and localized damage to the inner wall. As corrosion intensifies, the structural integrity of the connecting pipe is compromised, wall thickness uniformity decreases, and overall pressure resistance is significantly reduced. This makes it susceptible to leaks, deformation, and even rupture under system pressure fluctuations, affecting the normal operation of the cooling system, shortening the lifespan of pipe connectors, and increasing vehicle use and maintenance costs.

[0004] To address this, a high-pressure-resistant automotive cooling system piping connector is proposed. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a high-pressure resistant automotive cooling system piping connector.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-pressure resistant automotive cooling system pipe connector, comprising two cooling pipes and a connecting pipe disposed between the two cooling pipes, and further comprising:

[0007] A fixing mechanism is provided between the wall of the cooling pipe and the wall of the connecting pipe to seal and fix the cooling pipe and the connecting pipe.

[0008] A bracket is fixedly installed inside the connecting pipe. The bracket has a rotating shaft that rotates laterally inside, and an impeller is fixedly installed on the shaft wall.

[0009] A wiping mechanism is provided at both ends of the rotating shaft, and the wiping mechanism is in contact with the inner wall of the cooling pipe and the inner wall of the connecting pipe at the connection point;

[0010] An exhaust mechanism is provided on the upper side of the pipe wall of the connecting pipe, and the shaft wall of the rotating shaft is provided with a pushing mechanism that is linked to the exhaust mechanism.

[0011] Preferably, the fixing mechanism includes a fixing ring that is fixedly disposed around the cooling pipe and the connecting pipe, and a fixing bolt and a fixing nut that cooperate with each other are provided between two adjacent fixing rings.

[0012] Preferably, both ends of the connecting pipe are provided with sealing slots, and the sealing slots are provided with sealing rings inside, and one end of the cooling pipe is inserted into the sealing slot.

[0013] Preferably, the wiping mechanism includes two sleeves symmetrically fixed at the ends of the rotating shaft. A movable rod is slidably provided inside each of the two sleeves. A first spring is fixed between one end of the movable rod and the inner wall of the sleeve, and a wiping block is detachably provided at the other end of the movable rod. A weighting mechanism is provided on the rod wall of the movable rod.

[0014] Preferably, the weighting mechanism includes connecting rods symmetrically fixed on the moving rod, with the ends of both connecting rods extending away from the moving rod to the outside of the sleeve and each fixedly provided with a weighting ball.

[0015] Preferably, the exhaust mechanism includes an exhaust pipe fixedly mounted on the connecting pipe, and an exhaust valve is fixedly mounted on the pipe wall of the exhaust pipe. A sealing plate is fixedly mounted inside the exhaust pipe. A frustum-shaped end cap is inverted in the middle of the sealing plate. A top rod is fixedly mounted at the bottom of the frustum-shaped end cap. A connecting piece is fixedly mounted on the rod wall of the top rod. A second spring is fixedly mounted between the upper surface of the connecting piece and the lower surface of the sealing plate on both sides.

[0016] Preferably, the pushing mechanism includes a pushing rod fixedly mounted on the rotating shaft, and a pushing head is fixedly mounted at one end of the pushing rod away from the rotating shaft, the position of the pushing head corresponding to the position of the push rod.

[0017] Preferably, the wiping block has an L-shaped structure, and the wiping block is in contact with both the inner wall of the cooling pipe and the inner wall of the connecting pipe.

[0018] Compared with existing technologies, the advantages of this invention are as follows:

[0019] 1. Through the designed rotating shaft, impeller, and wiping mechanism, when the coolant flows inside the cooling pipe and connecting pipe, the fluid directly impacts the impeller and drives it to rotate. The impeller drives the rotating shaft to rotate synchronously, which in turn causes the sleeves, moving rods, and wiping blocks at both ends of the rotating shaft to rotate together. During the rotation, the wiping blocks continuously wipe the inner walls of the cooling pipe, the connecting pipe, and the joint between them, effectively removing deposits, rust, and impurities attached to the inner walls, reducing the risk of inner wall corrosion, reducing flow resistance, keeping the inner walls of the pipes smooth and clean, and improving the pressure resistance and service life of the connectors. At the same time, the first spring between the sleeve and the moving rod continuously applies elastic preload, keeping the wiping blocks in close contact with the inner walls, ensuring a stable and reliable wiping effect.

[0020] 2. Through the set weight mechanism, as the wiping block rotates from the top to the bottom of the pipeline with the rotating shaft, the connecting rod and the weight ball exert an additional downward pressure on the moving rod and the wiping block under their own weight, which further improves the adhesion between the wiping block and the inner wall of the bottom of the pipeline and the wiping force, effectively solving the problem that the bottom of the pipeline is more prone to scale accumulation and difficult to clean due to coolant sedimentation, and significantly improving the bottom cleaning effect.

[0021] 3. Through the exhaust mechanism, the rotating shaft synchronously drives the push rod and push head to rotate. Each rotation of the push head will lift the push rod once at the top of the pipeline. The push rod pushes the frustum-shaped end cap upward, creating an exhaust gap between the end cap and the end plate. The air accumulated on the upper side of the connecting pipe enters the exhaust pipe through the gap and is discharged. When the push head and push rod separate, the elastic force of the second spring causes the push rod and end cap to quickly reset, resealing the exhaust channel. This structure is linked with the wiping mechanism to achieve periodic automatic exhaust once per rotation, which can promptly remove the air accumulated in the pipeline, avoid air blockage, local overheating and cavitation, and ensure smooth circulation and stable operation of the cooling system. Attached Figure Description

[0022] Figure 1 This is a perspective view of a high-pressure resistant automotive cooling system pipe connector provided by the present invention;

[0023] Figure 2 This is a three-dimensional cutaway view of a high-pressure resistant automotive cooling system pipe connector provided by the present invention;

[0024] Figure 3 This is a perspective view of the connecting pipe cut open in a high-pressure resistant automotive cooling system pipe connector provided by the present invention;

[0025] Figure 4 This is a perspective view of a wiping mechanism in a high-pressure resistant automotive cooling system pipe connector provided by the present invention;

[0026] Figure 5This is a perspective view of the exhaust mechanism in a high-pressure resistant automotive cooling system pipe connector provided by the present invention;

[0027] Figure 6 This is a perspective view of the pushing mechanism in a high-pressure resistant automotive cooling system pipe connector provided by the present invention.

[0028] In the diagram: 1 Cooling pipe, 2 Connecting pipe, 3 Fixing mechanism, 31 Fixing ring, 32 Fixing bolt, 33 Fixing nut, 4 Bracket, 5 Rotating shaft, 6 Impeller, 7 Wiping mechanism, 71 Sleeve, 72 Moving rod, 73 First spring, 74 Wiping block, 8 Exhaust mechanism, 81 Exhaust pipe, 82 Exhaust valve, 83 Sealing plate, 84 Frustum-shaped end cap, 85 Push rod, 86 Connecting piece, 87 Second spring, 9 Pushing mechanism, 91 Pushing rod, 92 Pushing head, 10 Sealing slot, 11 Sealing ring, 12 Weighting mechanism, 121 Connecting rod, 122 Weighted ball. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0030] like Figures 1-6 As shown, a high-pressure resistant automotive cooling system pipe connector includes two cooling pipes 1 and a connecting pipe 2 disposed between the two cooling pipes 1. The cooling pipes 1 are connected to the automotive cooling system. The connector also includes:

[0031] A fixing mechanism 3 is disposed between the wall of the cooling pipe 1 and the wall of the connecting pipe 2, and is used to seal and fix the cooling pipe 1 and the connecting pipe 2. The fixing mechanism 3 includes a fixing ring 31 that is fixedly disposed around the cooling pipe 1 and the connecting pipe 2. A fixing bolt 32 and a fixing nut 33 are provided between two adjacent fixing rings 31. The ends of the two sections of the cooling pipe 1 are inserted into the sealing slots 10 at both ends of the connecting pipe 2, and the adjacent fixing rings 31 are tightened and fixed by the fixing bolts 32 and the fixing nuts 33. Both ends of the connecting pipe 2 are provided with sealing slots 10, and a sealing ring 11 is provided inside the sealing slot 10. One end of the cooling pipe 1 is inserted into the sealing slot 10. The sealing ring 11 can increase the sealing performance of the connection between the cooling pipe 1 and the connecting pipe 2.

[0032] The bracket 4 is fixedly installed inside the connecting pipe 2. The bracket 4 has a rotating shaft 5 inside which it can rotate laterally. The shaft wall of the rotating shaft 5 is fixedly provided with an impeller 6. The impeller 6 is made of corrosion-resistant material. When the impeller 6 is driven by the coolant, it will drive the rotating shaft 5 to rotate.

[0033] Wiping mechanism 7 is located at both ends of rotating shaft 5, and contacts the inner wall of cooling pipe 1 and the inner wall of connecting pipe 2. Wiping mechanism 7 includes two sleeves 71 symmetrically fixed at the ends of rotating shaft 5. A moving rod 72 is slidably mounted inside each sleeve 71. A first spring 73 is fixed between one end of the moving rod 72 and the inner wall of sleeve 71, and a detachable wiping block 74 is mounted on the other end of the moving rod 72 (the wiping block 74 is fixed to the moving rod 72 by screws, allowing for the removal and replacement of worn wiping blocks 74). The wiping block 74 has an L-shaped structure and contacts both the inner wall of cooling pipe 1 and the inner wall of connecting pipe 2 simultaneously, ensuring effective contact between the wiping block 74 and the inner wall. A weighting mechanism 1 is provided on the rod wall of the moving rod 72. 2. The counterweight mechanism 12 includes connecting rods 121 symmetrically fixed on the moving rod 72. The ends of the two connecting rods 121 away from the moving rod 72 extend to the outside of the sleeve 71 and are fixedly provided with counterweight balls 122. The counterweight balls 122 are corrosion-resistant solid spheres. When the wiping block 74 rotates to the upper position, the weight of the counterweight balls 122 acts on the moving rod 72, reducing the squeezing pressure between the wiping block 74 and the inner wall of the top of the pipeline. Since there are fewer deposits, rust and impurities attached to the inner wall of the top of the pipeline, there is no need to increase the pressure between the wiping block 74 and the inner wall of the top of the pipeline, effectively reducing wear. When the wiping block 74 contacts the inner wall of the bottom of the pipeline, the weight of the counterweight balls 122 acts on the wiping block 74, increasing the cleaning intensity of the wiping block 74 on the inner wall of the bottom of the pipeline.

[0034] An exhaust mechanism 8 is disposed on the upper side of the pipe wall of the connecting pipe 2. The exhaust mechanism 8 includes an exhaust pipe 81 fixedly disposed on the connecting pipe 2, and an exhaust valve 82 is fixedly disposed on the pipe wall of the exhaust pipe 81. The exhaust valve 82 only allows gas to pass through, but not liquid. A sealing plate 83 is fixedly disposed inside the exhaust pipe 81. A frustum-shaped end cap 84 is inverted in the middle of the sealing plate 83. A push rod 85 is fixedly disposed at the bottom of the frustum-shaped end cap 84. A connecting piece 86 is fixedly disposed on the rod wall of the push rod 85. The upper surface of the connecting piece 86 is connected to the sealing plate 83 on both sides. A second spring 87 is fixed between the lower surfaces. In its natural state, the second spring 87 always applies a downward elastic force to the connecting piece 86, causing the push rod 85 to pull down the frustum-shaped end cap 84, thereby increasing the sealing between the frustum-shaped end cap 84 and the sealing plate 83. The shaft wall of the rotating shaft 5 is provided with a push mechanism 9 that is linked to the exhaust mechanism 8. The push mechanism 9 includes a push rod 91 fixedly mounted on the rotating shaft 5. A push head 92 is fixedly mounted at the end of the push rod 91 away from the rotating shaft 5. The position of the push head 92 corresponds to the position of the push rod 85.

[0035] The operating principle of the present invention is described as follows: In use, the connecting pipe 2 is first placed between two cooling pipes 1 to be connected, and the ends of the two cooling pipes 1 are inserted into the sealing slots 10 at both ends of the connecting pipe 2. Then, the adjacent fixing rings 31 are tightened and fixed by the fixing bolts 32 and fixing nuts 33. During this process, the cooling pipes 1 and the connecting pipe 2 approach each other and squeeze the sealing rings 11 in the sealing slots 10, so that the sealing rings 11 produce reliable elastic deformation, thereby achieving the sealing and fixed installation between the cooling pipes 1 and the connecting pipe 2, ensuring that the connection position does not leak under high pressure conditions.

[0036] When the coolant flows through the interior of the cooling pipe 1 and the connecting pipe 2, the flowing coolant directly impacts the impeller 6 and drives the impeller 6 to rotate continuously. The impeller 6 drives the rotating shaft 5 to rotate synchronously, which in turn causes the sleeves 71, the moving rod 72 and the wiping block 74 at both ends of the rotating shaft 5 to rotate together. During the rotation, the wiping block 74 can continuously wipe and clean the docking area between the inner wall of the cooling pipe 1 and the inner wall of the connecting pipe 2, effectively removing the deposits, rust and impurities attached to the inner wall, avoiding local corrosion and increased flow resistance caused by dirt accumulation. At the same time, the first spring 73 set between the sleeve 71 and the moving rod 72 can continuously apply elastic pre-tightening force to the moving rod 72 and the wiping block 74, so that the wiping block 74 always sticks tightly to the inner wall of the pipe, ensuring stable wiping action and reliable cleaning effect.

[0037] As the wiping block 74 rotates from the top to the bottom of the pipe along with the rotating shaft 5, the connecting rod 121 and the weighted ball 122 exert downward additional pressure on the wiping block 74 under their own gravity, further enhancing the adhesion between the bottom wiping block 74 and the inner wall of the cooling pipe 1 and the connecting pipe 2, significantly improving the cleaning effect on the bottom of the pipe (because the coolant flows relatively slowly under normal operating conditions, it will not drive the impeller 6 and the rotating shaft 5 to rotate at high speed, and there will be no situation where the centrifugal force on the connecting rod 121 and the weighted ball 122 is much greater than its own gravity, the effect of gravity can be stably exerted, effectively solving the problem that the bottom of the pipe is more prone to dirt adhesion and difficult to clean due to the settling effect of coolant).

[0038] While the rotating shaft 5 drives the wiping block 74 to rotate and wipe, it also simultaneously drives the push rod 91 and its end push head 92 to rotate. When the push head 92 rotates to the top position of the pipeline, the protruding part of the push head 92 contacts the lower end of the push rod 85 and pushes the push rod 85 upward. The connecting piece 86 on the push rod 85 then compresses the second springs 87 on both sides, causing the push rod 85 to push the frustum-shaped end cap 84 upward, increasing the gap between the frustum-shaped end cap 84 and the sealing plate 83. At this time, the air accumulated inside the upper side of the connecting pipe 2 can enter the exhaust through this gap. The air is discharged outward through the exhaust pipe 81. When the push head 92 rotates past the top rod 85 and separates from it, the second spring 87 drives the connecting piece 86 and the top rod 85 to move down quickly under the action of elastic restoring force, so that the frustum-shaped end cap 84 presses the sealing plate 83 again and closes the exhaust channel, stopping the exhaust. The above structure operates periodically with the wiping rotation action, realizing stable automatic exhaust once for one rotation, timely expelling the air accumulated in the pipeline, avoiding air blockage, local overheating and cavitation, and ensuring the efficient and stable operation of the cooling system.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-pressure resistant automotive cooling system pipe connector, comprising two cooling pipes (1) and a connecting pipe (2) disposed between the two cooling pipes (1), characterized in that, Also includes: A fixing mechanism (3) is provided between the wall of the cooling pipe (1) and the wall of the connecting pipe (2) for sealing and fixing the cooling pipe (1) and the connecting pipe (2); A bracket (4) is fixedly installed inside the connecting pipe (2). The bracket (4) has a rotating shaft (5) that rotates laterally inside. An impeller (6) is fixedly installed on the shaft wall of the rotating shaft (5). Wiping mechanism (7) is provided at both ends of the rotating shaft (5), and the wiping mechanism (7) is in contact with the inner wall of the cooling pipe (1) and the inner wall of the connecting pipe (2); An exhaust mechanism (8) is provided on the upper side of the pipe wall of the connecting pipe (2), and a pushing mechanism (9) is provided on the shaft wall of the rotating shaft (5) to be linked with the exhaust mechanism (8).

2. The high-pressure resistant automotive cooling system pipe connector according to claim 1, characterized in that, The fixing mechanism (3) includes a fixing ring (31) that is fixedly arranged around the cooling pipe (1) and the connecting pipe (2), and a fixing bolt (32) and a fixing nut (33) that cooperate with each other are provided between two adjacent fixing rings (31).

3. The high-pressure resistant automotive cooling system pipe connector according to claim 1, characterized in that, Both ends of the connecting pipe (2) are provided with sealing slots (10), and the sealing slots (10) are provided with sealing rings (11). One end of the cooling pipe (1) is inserted into the interior of the sealing slots (10).

4. The high-pressure resistant automotive cooling system pipe connector according to claim 1, characterized in that, The wiping mechanism (7) includes two sleeves (71) symmetrically fixed at the end of the rotating shaft (5). The two sleeves (71) are each slidably provided with a moving rod (72). A first spring (73) is fixed between one end of the moving rod (72) and the inner wall of the sleeve (71). The other end of the moving rod (72) is detachably provided with a wiping block (74). The rod wall of the moving rod (72) is provided with a weighting mechanism (12).

5. A high-pressure resistant automotive cooling system pipe connector according to claim 4, characterized in that, The weighting mechanism (12) includes connecting rods (121) symmetrically fixed on the moving rod (72). The ends of the two connecting rods (121) away from the moving rod (72) extend to the outside of the sleeve (71) and are fixedly provided with weighting balls (122).

6. A high-pressure resistant automotive cooling system pipe connector according to claim 1, characterized in that, The exhaust mechanism (8) includes an exhaust pipe (81) fixedly installed on the connecting pipe (2), and an exhaust valve (82) is fixedly installed on the pipe wall of the exhaust pipe (81). A sealing plate (83) is fixedly installed inside the exhaust pipe (81). A frustum-shaped end cap (84) is inverted in the middle of the sealing plate (83). A top rod (85) is fixedly installed at the bottom of the frustum-shaped end cap (84). A connecting piece (86) is fixedly installed on the rod wall of the top rod (85). A second spring (87) is fixedly installed between the upper surface of the connecting piece (86) and the lower surface of the sealing plate (83).

7. A high-pressure resistant automotive cooling system pipe connector according to claim 6, characterized in that, The pushing mechanism (9) includes a pushing rod (91) fixedly mounted on the rotating shaft (5). A pushing head (92) is fixedly mounted at one end of the pushing rod (91) away from the rotating shaft (5). The position of the pushing head (92) corresponds to the position of the top rod (85).

8. A high-pressure resistant automotive cooling system pipe connector according to claim 4, characterized in that, The wiping block (74) adopts an L-shaped structure, and the wiping block (74) is in contact with the inner wall of the cooling pipe (1) and the inner wall of the connecting pipe (2) at the same time.

Images