Flange fixing mechanism for water pipe of air heater of automobile air conditioner

Abstract

The utility model discloses an automobile air conditioner air heater water pipe flange fixing mechanism which comprises a tool plate, and a water pipe fixing assembly is arranged above the tool plate. The water pipe fixing assembly comprises a first water pipe profiling seat and a second water pipe profiling seat, and two guide shafts are symmetrically arranged on the side, away from the second water pipe profiling seat, of the first water pipe profiling seat. A mounting plate is arranged at the upper end of the guide shaft, and a quick clamp is arranged at the front end of the mounting plate; the clamping end of the quick clamp is connected with a fixing block through a floating connector, and a pressing plate is arranged at the lower end of the fixing block. According to the utility model, the first water pipe profiling seat and the second water pipe profiling seat are designed, and the first profiling groove and the second profiling groove which are matched with the first water pipe profiling seat and the second water pipe profiling seat are arranged, so that the position of the warm air water pipe can be accurately fixed, and the mounting precision and stability are improved; through the combined design of the guide shaft, the mounting plate, the quick clamp and the floating connector, the pressing plate can easily clamp and release the water pipe flange, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning assembly technology, and in particular to a flange fixing mechanism for automotive air conditioning heater water pipes. Background Technology

[0002] In the automotive air conditioning assembly, the heater hoses play a crucial role. As a key component connecting the heater core to the engine, they are responsible for transporting antifreeze through the heat exchange system to regulate the interior temperature. Depending on the vehicle model, the heater hoses may be made of aluminum or plastic and consist of two pipes: an inlet and an outlet. Both the inlet and outlet ends of the heater hoses are typically fitted with flanges. These flanges are connected to a pipe that passes through a pre-drilled hole in the firewall and extends into the engine compartment.

[0003] In current heater core assembly designs, the heater water pipes exhibit an eccentric structure due to their complex bending shape, which increases the complexity of water pipe flange installation. Specifically, the unstable position of the water pipe flanges may lead to assembly errors, thereby affecting the performance of the entire air conditioning system and even causing potential quality problems such as leaks or inefficiency. Summary of the Invention

[0004] The purpose of this utility model is to provide a flange fixing mechanism for the water pipe of an automotive air conditioning heater, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A flange fixing mechanism for a car air conditioning heater water pipe includes a tooling trolley with a panel on top; a tooling plate is mounted on the panel, and a water pipe fixing assembly is mounted on the tooling plate; the water pipe fixing assembly includes a first water pipe conforming seat and a second water pipe conforming seat, wherein the sides of the first and second water pipe conforming seats are respectively provided with a first conforming groove and a second conforming groove, and the first and second conforming grooves are arranged opposite to each other and adapted to the heater water pipe; two guide shafts are symmetrically arranged on the side of the first water pipe conforming seat away from the second water pipe conforming seat, wherein the lower end of the guide shaft is fixedly connected to the tooling plate; an mounting plate is provided on the upper end of the guide shaft, wherein a quick clamp is provided at the front end of the mounting plate; the quick clamp is vertically arranged, wherein the clamping end of the quick clamp is connected to a fixing block through a floating joint, and the lower end of the fixing block is fixedly connected to a pressure plate by bolts.

[0007] Preferably, elliptical flange linear bearings are provided on both sides of the pressure plate, wherein the elliptical flange linear bearings are sleeved on the outer wall of the guide shaft, so that the elliptical flange linear bearings can drive the pressure plate to move up and down along the guide shaft.

[0008] Preferably, the pressure plate is positioned above the first water pipe conforming seat and the second water pipe conforming seat, wherein a water pipe flange is placed between the pressure plate and the first water pipe conforming seat and the second water pipe conforming seat, and the water pipe flange is adapted to the opening of the warm air water pipe.

[0009] Preferably, a support column is provided on one side of the second water pipe conformal seat, wherein the lower end of the support column is fixedly connected to the tooling plate; a water pipe limiting stop is provided at the upper end of the support column, wherein the water pipe limiting stop is a right-angle rod, and the corner of the water pipe limiting stop is movably connected to the support column.

[0010] Preferably, one end of the water pipe limiting stop extends toward the side of the second water pipe conforming seat, wherein the second water pipe conforming seat is provided with a limiting groove that matches the water pipe limiting stop.

[0011] Preferably, the water pipe limiting stop is provided with a movable hole at the corner, wherein the top of the support column is provided with a rotating shaft that matches the movable hole, and the water pipe limiting stop can be raised and lowered along the vertical direction of the rotating shaft.

[0012] Preferably, the water pipe limiting stop bar has a pressure groove on the side near the first water pipe conformal seat, wherein the pressure groove is adapted to the outer wall of the warm air water pipe.

[0013] Preferably, a positioning column is provided side by side on one side of the support column, wherein the lower end of the positioning column is fixedly connected to the tooling plate; a positioning pin is provided at the top of the positioning column, wherein a positioning pin hole adapted to the positioning pin is opened on the water pipe limiting stop rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the design of a first and second water pipe conforming seat, and equipped with matching first and second conforming grooves, can accurately fix the position of the heating water pipe, effectively preventing the water pipe from shifting position during high-temperature brazing, thereby improving the installation accuracy and stability; utilizing the combined design of the guide shaft, mounting plate, quick clamp, and floating joint, the pressure plate can easily clamp and release the water pipe flange, greatly simplifying the installation process and improving work efficiency; simultaneously, the application of the elliptical flange linear bearing allows the pressure plate to move along... The smooth movement of the guide shaft further enhances operational flexibility. The design of the water pipe limiting stop not only provides additional restraint for the heater hose, preventing it from shaking during installation, but also allows for flexible adjustment of the water pipe limiting stop in height and angle through the cooperation of the movable hole and the rotating shaft, as well as the cooperation of the positioning pin and the positioning pin hole, meeting the installation requirements of heater hoses of different specifications. Through a series of innovative designs, this utility model effectively solves the problems of unstable installation and low precision of heater hoses in the prior art, not only improving installation efficiency and quality, but also enhancing the overall performance and reliability of the automotive air conditioning system. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a structural schematic diagram of the water pipe fixing assembly of this utility model;

[0017] Figure 3 This is a schematic diagram of the installation structure of the first and second water pipe conforming seats of this utility model;

[0018] Figure 4 This is a structural schematic diagram of the first water pipe conformal seat of this utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the second water pipe conformal seat of this utility model;

[0020] Figure 6 This is a schematic diagram of the connection between the quick clamp and the pressure plate of this utility model;

[0021] Figure 7 This is a schematic diagram of the connection between the heating water pipe and the water pipe flange of this utility model.

[0022] The components include: 1. Tooling trolley; 2. Panel; 3. Tooling plate; 4. Water pipe fixing assembly; 401. First water pipe contour seat; 402. Second water pipe contour seat; 403. First contour groove; 404. Second contour groove; 405. Guide shaft; 406. Mounting plate; 407. Quick clamp; 408. Floating joint; 409. Fixing block; 410. Pressure plate; 411. Elliptical flange linear bearing; 5. Warm air water pipe; 6. Water pipe flange; 7. Support column; 8. Water pipe limit stop bar; 9. Limiting slot; 10. Movable hole; 11. Rotating shaft; 12. Pressure groove; 13. Positioning column; 14. Positioning pin hole. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings.

[0024] Please refer to the following: Figures 1 to 7 To achieve the above objectives, this utility model provides the following technical solution:

[0025] A flange fixing mechanism for a car air conditioning heater water pipe includes a tooling trolley 1, with a panel 2 on top of the tooling trolley 1; a tooling plate 3 is mounted on the panel 2, and a water pipe fixing assembly 4 is located on top of the tooling plate 3; the water pipe fixing assembly 4 includes a first water pipe contour seat 401 and a second water pipe contour seat 402, wherein the sides of the first water pipe contour seat 401 and the second water pipe contour seat 402 are respectively provided with a first contour groove 403 and a second contour groove 404, and the first contour groove 403 and the second contour groove 404 are arranged opposite to each other. And it is compatible with the warm air water pipe 5; the first water pipe contour seat 401 is symmetrically provided with two guide shafts 405 on the side away from the second water pipe contour seat 402, wherein the lower end of the guide shaft 405 is fixedly connected to the tooling plate 3; the upper end of the guide shaft 405 is provided with a mounting plate 406, wherein the front end of the mounting plate 406 is provided with a quick clamp 407; the quick clamp 407 is vertically arranged, wherein the clamping end of the quick clamp 407 is connected to a fixing block 409 through a floating joint 408, and the lower end of the fixing block 409 is fixedly connected to a pressure plate 410 by bolts.

[0026] In use, place the warm air water pipe 5 between the first water pipe contour seat 401 and the second water pipe contour seat 402 on the tooling plate 3, ensuring that the shape of the warm air water pipe 5 is completely adapted to the first contour groove 403 and the second contour groove 404, thereby achieving initial positioning. If necessary, the position of the warm air water pipe 5 can be adjusted to ensure that it is fully embedded in the contour groove, avoiding shaking or positional displacement during installation. Next, place the water pipe flange 6 above the warm air water pipe 5, so that the interface of the water pipe flange 6 corresponds to the pipe opening of the warm air water pipe 5. By operating the quick clamp 407, using the fixing block 409 connected to the floating joint 408 at its clamping end, press the pressure plate 410 downward, thereby causing the pressure plate 410 to press the water pipe flange 6 against the warm air water pipe 5. The floating joint 408 ensures that the pressure plate 410 can adapt to the heating water pipes 5 of different heights during clamping, avoiding excessive pressure or damage to the heating water pipes 5. The vertical setting of the quick clamp 407 makes operation more convenient, and the clamping and releasing of the pressure plate 410 can be easily achieved. On one side of the second water pipe conforming seat 402, the heating water pipe 5 is further limited by the water pipe limiting stop 8 on the support column 7. The water pipe limiting stop 8 is set as a right-angle rod, and its corner is movably connected to the support column 7 so that its position and angle can be adjusted as needed. One end of the water pipe limiting stop 8 extends towards the second water pipe conforming seat 402 and is inserted into the limiting slot 9 to ensure the stability of the heating water pipe 5 in the horizontal direction.

[0027] Please refer to the following: Figure 2 , Figure 3 and Figure 6As an embodiment of this utility model, elliptical flange linear bearings 411 are respectively provided on both sides of the pressure plate 410. The elliptical flange linear bearings 411 are sleeved on the outer wall of the guide shaft 405, so that the elliptical flange linear bearings 411 can drive the pressure plate 410 to move up and down along the guide shaft 405. The pressure plate 410 is located above the first water pipe contour seat 401 and the second water pipe contour seat 402. A water pipe flange 6 is placed between the pressure plate 410 and the first water pipe contour seat 401 and the second water pipe contour seat 402, and the water pipe flange 6 is adapted to the pipe opening of the warm air water pipe 5.

[0028] In the above-described scheme, the elliptical flange linear bearing 411 is correctly fitted onto the outer wall of the guide shaft 405. The design of the elliptical flange linear bearing 411 allows it to have a certain radial and axial floating capability on the guide shaft 405 to accommodate minor deviations in the movement of the pressure plate 410. It is ensured that the elliptical flange linear bearing 411 is securely installed without loosening or jamming, so that the pressure plate 410 can move smoothly up and down along the guide shaft 405. The pressure plate 410 is fixedly installed below the fixing block 409, ensuring that the size and shape of the pressure plate 410 match the water pipe flange 6, so that pressure can be evenly distributed during clamping. Holes corresponding to the elliptical flange linear bearing 411 are provided on both sides of the pressure plate 410, so that the elliptical flange linear bearing 411 can smoothly pass through and support the pressure plate 410. Between the pressure plate 410 and the first water pipe conforming seat 401 and the second water pipe conforming seat 402, a fitting for the opening of the warm air water pipe 5 is placed. The water pipe flange 6 connects the heating water pipe 5 to other components, ensuring smooth water flow and a tight seal. It ensures the correct position of the water pipe flange 6, without deviation or misalignment, so that an effective seal can be formed when the pressure plate 410 is tightened. By operating the quick clamp 407, the pressure plate 410 is pressed downwards using the fixing block 409 connected to the floating joint 408 at its clamping end. During the tightening process, the elliptical flange linear bearing 411 plays a crucial supporting and guiding role, ensuring that the pressure plate 410 can move smoothly and evenly along the guide shaft 405. The tightening force should be moderate, ensuring a tight connection between the water pipe flange 6 and the heating water pipe 5 while avoiding excessive pressure or damage to the water pipe. When it is necessary to release the pressure plate 410, simply loosen the quick clamp 407. The floating capability of the elliptical flange linear bearing 411 allows the pressure plate 410 to have a certain buffer during release, avoiding impact or damage caused by sudden release.

[0029] Please refer to the following: Figure 2 , Figure 3As an embodiment of this utility model, a support column 7 is provided on one side of the second water pipe contour seat 402, wherein the lower end of the support column 7 is fixedly connected to the tooling plate 3; a water pipe limiting stop bar 8 is provided on the upper end of the support column 7, wherein the water pipe limiting stop bar 8 is a right-angle bar, and the corner of the water pipe limiting stop bar 8 is movably connected to the support column 7; one end of the water pipe limiting stop bar 8 extends toward the second water pipe contour seat 402, wherein the second water pipe contour seat 402 is provided with a limiting groove 9 that is adapted to the water pipe limiting stop bar 8.

[0030] In the above-described scheme, the lower end of the support column 7 is fixedly connected to the tooling plate 3 to ensure that it will not shake or shift during operation; the position of the support column 7 should be precisely set according to the position of the second water pipe contour seat 402 and the direction of the heating water pipe 5 that needs to be restricted, so as to play an effective supporting and limiting role when the heating water pipe 5 is installed later; the water pipe limiting stop 8 is designed as a right-angle rod, and the right-angle corner of the water pipe limiting stop 8 is connected to the upper end of the support column 7 through a movable connection, so as to adjust the angle and position of the water pipe limiting stop 8 as needed; one end of the water pipe limiting stop 8 extends towards the second water pipe contour seat 402 to ensure that it can cooperate with the limiting slot 9 on the second water pipe contour seat 402 when the position of the heating water pipe 5 needs to be restricted.

[0031] Please see Figure 3 As an embodiment of this utility model, a movable hole 10 is provided at the corner of the water pipe limiting stop 8, wherein the top of the support column 7 is provided with a rotating shaft 11 that is adapted to the movable hole 10, and the water pipe limiting stop 8 can move up and down along the vertical direction of the rotating shaft 11; a pressure groove 12 is provided on the side of the water pipe limiting stop 8 near the first water pipe contour seat 401, wherein the pressure groove 12 is adapted to the outer wall of the warm air water pipe 5.

[0032] In the above-described scheme, a movable hole 10 is designed at the corner of the water pipe limiting stop 8. The shape and size of this hole are adapted to the rotating shaft 11 at the top of the support column 7. By inserting the rotating shaft 11 into the movable hole 10, the water pipe limiting stop 8 can achieve a movable connection with the support column 7. The design of the rotating shaft 11 allows the water pipe limiting stop 8 to move up and down along its axis within a certain range to accommodate warm air water pipes 5 of different heights or sizes. At the same time, the fixing method of the rotating shaft 11 should ensure that the water pipe limiting stop 8 can move freely. Stability and reliability during the process; a pressure groove 12 is provided on the side of the water pipe limiting stop 8 near the first water pipe conformal seat 401. The shape and size of the pressure groove 12 are adapted to the outer wall of the warm air water pipe 5. The design of the pressure groove 12 is to further limit and fix the water pipe by tightly fitting the outer wall of the warm air water pipe 5. The depth and width of the pressure groove 12 should be precisely designed according to the specifications and size of the warm air water pipe 5 to ensure that it can effectively limit the position of the water pipe and prevent it from shaking or shifting.

[0033] Please see Figure 3As an embodiment of this utility model, a positioning column 13 is provided side by side on one side of the support column 7, wherein the lower end of the positioning column 13 is fixedly connected to the tooling plate 3; a positioning pin is provided at the top of the positioning column 13 (as shown in the figure), wherein a positioning pin hole 14 adapted to the positioning pin is opened on the water pipe limiting stop bar 8.

[0034] In the above-described scheme, the lower end of the positioning post 13 is fixedly connected to the tooling plate 3 to ensure that it will not shake or shift during operation. The position of the positioning post 13 should be precisely set according to the layout of the water pipe limiting stop 8 and the warm air water pipe 5 so as to play an effective positioning role in the subsequent installation process. The positioning pin is set at the top of the positioning post 13, and its shape and size are adapted to the positioning pin hole 14 on the water pipe limiting stop 8. The positioning pin is designed to fix the position of the water pipe limiting stop 8 by inserting it into the positioning pin hole 14 to prevent it from shifting or shaking during operation. The water pipe limiting stop 8 is provided with a positioning pin hole 14 adapted to the positioning pin. The position and shape of the positioning pin hole 14 should be precisely designed according to the specifications and size of the positioning pin to ensure that the positioning pin can be smoothly inserted and fix the position of the water pipe limiting stop 8.

[0035] By placing the warm air water pipe 5 between the first water pipe contour seat 401 and the second water pipe contour seat 402 on the tooling plate 3, the shape of the warm air water pipe 5 is ensured to be fully adapted to the first contour groove 403 and the second contour groove 404, thus achieving initial positioning. Next, the water pipe limiting stop 8 is lifted upward and rotated around the support column 7 as the axis, so that the side of the water pipe limiting stop 8 with the pressure groove 12 is close to the warm air water pipe 5 and pressed against it. Then, the water pipe limiting stop 8 is pushed downward along the rotating shaft 11, so that the front end of the water pipe limiting stop 8 falls into the limiting slot 9 opened on the second water pipe contour seat 402, and at the same time, the positioning pin hole 14 opened on the water pipe limiting stop 8 is precisely engaged with the positioning pin. At this time, the water pipe limiting stop 8, the positioning column 13 and the positioning pin together constitute the all-round limiting and fixing of the warm air water pipe 5, ensuring its stability and reliability during operation.

[0036] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A flange fixing mechanism for a car air conditioning heater water pipe, comprising a tooling trolley (1), wherein a panel (2) is provided above the tooling trolley (1); a tooling plate (3) is mounted on the panel (2), wherein a water pipe fixing assembly (4) is provided above the tooling plate (3); characterized in that, The water pipe fixing assembly (4) includes a first water pipe conforming seat (401) and a second water pipe conforming seat (402), wherein the first water pipe conforming seat (401) and the second water pipe conforming seat (402) are respectively provided with a first conforming groove (403) and a second conforming groove (404) on their sides, and the first conforming groove (403) and the second conforming groove (404) are arranged opposite to each other and adapted to the warm air water pipe (5); two guide shafts (405) are symmetrically arranged on the side of the first water pipe conforming seat (401) away from the second water pipe conforming seat (402), wherein the lower end of the guide shaft (405) is fixedly connected to the tooling plate (3); the upper end of the guide shaft (405) is provided with an mounting plate ( 406), wherein the front end of the mounting plate (406) is provided with a quick clamp (407); the quick clamp (407) is vertically arranged, wherein the clamping end of the quick clamp (407) is connected to a fixing block (409) through a floating joint (408), and the lower end of the fixing block (409) is fixedly connected to a pressure plate (410) by bolts; the pressure plate (410) is arranged above the first water pipe contour seat (401) and the second water pipe contour seat (402), wherein a water pipe flange (6) is placed between the pressure plate (410) and the first water pipe contour seat (401) and the second water pipe contour seat (402), and the water pipe flange (6) is adapted to the pipe opening of the warm air water pipe (5).

2. The automotive air conditioning heater water pipe flange fixing mechanism according to claim 1, characterized in that, Elliptical flange linear bearings (411) are provided on both sides of the pressure plate (410). The elliptical flange linear bearings (411) are sleeved on the outer wall of the guide shaft (405) so that the elliptical flange linear bearings (411) can drive the pressure plate (410) to move up and down along the guide shaft (405).

3. The automotive air conditioning heater water pipe flange fixing mechanism according to claim 1, characterized in that, The second water pipe conformal seat (402) has a support column (7) on one side, wherein the lower end of the support column (7) is fixedly connected to the tooling plate (3); the upper end of the support column (7) is provided with a water pipe limiting rod (8), wherein the water pipe limiting rod (8) is a right-angle rod, and the corner of the water pipe limiting rod (8) is movably connected to the support column (7).

4. The automotive air conditioning heater water pipe flange fixing mechanism according to claim 3, characterized in that, One end of the water pipe limiting stop (8) extends toward the side of the second water pipe conforming seat (402), wherein the second water pipe conforming seat (402) is provided with a limiting groove (9) that is compatible with the water pipe limiting stop (8).

5. The automotive air conditioning heater water pipe flange fixing mechanism according to claim 3, characterized in that, The water pipe limiting stop (8) has a movable hole (10) at the corner, and the top of the support column (7) has a rotating shaft (11) that matches the movable hole (10), and the water pipe limiting stop (8) can be raised and lowered along the vertical direction of the rotating shaft (11).

6. The automotive air conditioning heater water pipe flange fixing mechanism according to claim 5, characterized in that, The water pipe limiting stop (8) has a pressure groove (12) on the side near the first water pipe conformal seat (401), wherein the pressure groove (12) is adapted to the outer wall of the warm air water pipe (5).

7. The automotive air conditioning heater water pipe flange fixing mechanism according to claim 3, characterized in that, The support column (7) is provided with a positioning column (13) on one side, wherein the lower end of the positioning column (13) is fixedly connected to the tooling plate (3); the top of the positioning column (13) is provided with a positioning pin, wherein the water pipe limiting stop (8) is provided with a positioning pin hole (14) that matches the positioning pin.

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