A brake hose connector thread testing device

Abstract

This utility model discloses a brake hose connector thread testing device, relating to the field of thread testing technology. It includes a testing frame, a hydraulic cylinder, a servo motor, a rotating shaft, and a thread testing plate. The hydraulic cylinder is fixedly installed on one side of the top of the testing frame, and the servo motor is installed at the bottom of the testing frame. A threaded rotating shaft is rotatably connected to the midpoint of the servo motor. The thread testing plate is installed above the rotating shaft and below the hydraulic cylinder. In this utility model, when the brake hose connector thread is being tested, a pressing device inside the thread groove automatically presses the connector thread, fixing it during testing and accurately positioning the thread. The connector thread penetrates the interior of the thread groove. The testing plate and thread testing plate allow for simultaneous testing of double-ended threads, saving testing time and improving testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of thread detection technology, specifically a brake oil pipe joint thread detection device. Background Technology

[0002] The threads on brake line connectors serve two main functions. First, they provide a secure connection, tightly connecting the brake line to brake system components (such as the brake pump and wheel cylinders) through thread engagement, ensuring a stable installation and preventing loosening due to vehicle vibrations. Second, they provide a leak-proof seal. The threads, combined with sealing rings (such as rubber gaskets), form a tight seal, preventing brake fluid leakage under high pressure. This ensures proper hydraulic fluid transmission within the brake system, effectively transmitting braking force and guaranteeing reliable braking function—a crucial element for the normal operation of the brake system.

[0003] The existing applicable Chinese utility model patent, CN210135857U, discloses a testing and measuring device for threaded joints. This device includes a base plate with support columns fixedly mounted at both ends of the top of the base plate. Each support column has a length scale. A movable ring is slidably fitted around the outer circumference of each support column, and a connecting rod is fixedly mounted on the outer side of the movable ring. A fixing plate is fixedly mounted between the two connecting rods. A connecting groove is formed at one end of the base plate, and an adjustment groove is formed at the top of the base plate. The adjustment groove and the connecting groove are interconnected, and a movable rod is slidably connected within the connecting groove. In this testing and measuring device, the threaded joint is placed on the base plate and fitted onto two connecting parts. Then, under the action of gravity, the fixing plate automatically moves down to contact the threaded joint, allowing the length to be measured by reading the scale on the support column where the movable ring is located.

[0004] Currently, the brake hose connector thread inspection device in use still has the following problems:

[0005] The existing brake hose connector threads are inspected manually one by one, which is slow, time-consuming and affects the production schedule. In addition, the accuracy of manual inspection is unstable and the results may be biased. Furthermore, the connector threads need to be pressed manually during inspection, which is labor-intensive and can cause fatigue. Utility Model Content

[0006] The purpose of this invention is to provide a brake oil pipe joint thread detection device to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0008] This utility model provides a brake oil pipe joint thread testing device, including a testing frame, a hydraulic cylinder, a servo motor, a rotating shaft, and a thread testing plate. The hydraulic cylinder is fixedly installed on the top side of the testing frame, and the servo motor is installed at the bottom end of the testing frame. The servo motor is rotatably connected to the midpoint of the threaded rotating shaft. The thread testing plate is installed above the rotating shaft, and the thread testing plate is installed below the hydraulic cylinder. The top of the testing plate is connected to four support rods, and the top of the support rods is connected to the midpoint of the bottom of the hydraulic cylinder.

[0009] The thread test plate has a threaded groove in the middle, and a pressing device is movably installed on one side of the threaded groove. The side of the pressing device is symmetrically inclined. A spring is movably connected to the rear of the pressing device, and an outer ring is installed on the outside of the spring. The thread test plate is elastically connected to the bottom of the test plate through springs on the four sides above.

[0010] Preferably, a mounting plate is installed at the bottom of the servo motor, and the mounting plate is fixedly installed at the bottom of the testing frame, with the rotating shaft horizontally located below the threaded groove.

[0011] Preferably, a piston rod is movably connected to the bottom center of the hydraulic cylinder, and a bottom ring is sleeved on the bottom end of the piston rod. The upper end of the support rod is connected to the four sides of the bottom ring, and a connector is connected to the bottom end of the support rod. The connector is fixedly installed on the four sides above the detection plate.

[0012] Preferably, the spring is elastically connected to the outer ring at one end via a connecting ring, and the outer ring is located on the inner side of the threaded groove. The upper part of the side of the threaded groove is hollow, and the spring is located in the hollow part of the side of the threaded groove.

[0013] Preferably, the detection plate also has a threaded circular hole in the middle, and the upper and lower midpoints of the threaded groove and the circular hole correspond to each other. The detection plate is located on the upper middle side of the detection frame.

[0014] Preferably, the thread test plate is located in the middle of one side of the test frame, and the connector thread body is installed inside the thread groove.

[0015] Preferably, the piston rod is inserted through the top center of the testing frame, and the bottom ring and the threaded groove are positioned vertically.

[0016] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0017] 1. When the brake hose connector thread is being inspected, the hydraulic cylinder drives the inspection plate and thread test plate to press down to inspect the internal dimensions of the connector thread. This avoids manual pressing and inspection of the connector thread, reduces labor intensity, and facilitates batch inspection of connector threads, thereby increasing production speed.

[0018] 2. When the brake hose connector thread is being tested, the pressing device inside the thread groove can automatically press the connector thread to fix it during testing, accurately positioning the connector thread. The connector thread penetrates the inside of the thread groove. The double-ended thread can be tested simultaneously through the test plate and the thread test plate, which can save testing time and improve testing efficiency. Attached Figure Description

[0019] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0020] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the thread test plate of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the threaded groove of this utility model;

[0024] Figure 4 This is a schematic diagram of the lower structure of the hydraulic cylinder body of this utility model;

[0025] In the picture:

[0026] 1. Testing frame; 2. Hydraulic cylinder body; 21. Piston rod; 22. Bottom ring; 23. Support rod; 24. Connector; 25. Testing plate; 3. Servo motor; 4. Fixed plate; 5. Rotating shaft; 6. Thread test plate; 61. Thread groove; 62. Pressing device; 63. Spring one; 64. Connecting ring; 65. Outer ring; 66. Spring two; 7. Connector thread body. Detailed Implementation

[0027] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0028] Please see Figures 1-4 A brake oil pipe joint thread testing device includes a testing frame 1, a hydraulic cylinder 2, a servo motor 3, a rotating shaft 5, and a thread testing plate 6. The hydraulic cylinder 2 is fixedly installed on the top side of the testing frame 1. A thread testing plate 25 is installed below the hydraulic cylinder 2, and support rods 23 are connected to the four sides of the top of the testing plate 25. The top of the support rods 23 is connected to the midpoint of the bottom of the hydraulic cylinder 2.

[0029] For details, please refer to the following: Figure 4 As shown, a piston rod 21 is movably connected to the bottom center of the hydraulic cylinder body 2, and a bottom ring 22 is sleeved on the bottom end of the piston rod 21. The upper end of the support rod 23 is connected to the four sides of the bottom ring 22, and a connector 24 is connected to the bottom end of the support rod 23. The connector 24 is fixedly installed on the four sides above the detection plate 25. A threaded circular hole is also opened in the middle of the detection plate 25, and the upper and lower midpoints of the threaded groove 61 and the circular hole correspond. The detection plate 25 is located on the upper middle side of the detection frame 1. The piston rod 21 is inserted through the top center of the detection frame 1, and the bottom ring 22 and the threaded groove 61 correspond in upper and lower positions.

[0030] The brake oil pipe joint thread inspection device of this utility model uses a hydraulic cylinder 2 to press the thread inspection plate 25 and the thread test plate 6 downwards simultaneously. This allows for thread gauge inspection of the upper part of the joint thread, reducing the workload of manual pressing of the joint thread by the operator. At the same time, the equipment has high assembly efficiency and is suitable for batch processing.

[0031] For details, please refer to the following: Figure 1 and Figure 2 , Figure 3 As shown, a servo motor 3 is installed at the bottom of the testing frame 1, and a threaded rotating shaft 5 is rotatably connected to the midpoint of the servo motor 3. A threaded test plate 6 is installed above the rotating shaft 5. A threaded groove 61 is opened in the middle of the threaded test plate 6, and a pressing device 62 is movably installed on one side of the threaded groove 61. The side of the pressing device 62 is symmetrically inclined. A spring 63 is movably connected to the rear of the pressing device 62, and an outer ring 65 is installed on the outside of the spring 63. The threaded test plate 6 is elastically connected to the bottom of the testing plate 25 through the springs 66 on the four sides above.

[0032] In this embodiment, a fixed plate 4 is installed at the bottom of the servo motor 3, and the fixed plate 4 is fixedly installed at the bottom of the test frame 1. The rotating shaft 5 is horizontally located below the thread groove 61. The spring 63 is elastically connected to the outer ring 65 through the connecting ring 64 at one end, and the outer ring 65 is located on the inner side of the thread groove 61. The upper middle part of the side of the thread groove 61 is hollow, and the spring 63 is located in the hollow part of the side of the thread groove 61. The thread test plate 6 is located in the middle of one side of the test frame 1, and the connector thread body 7 is installed inside the thread groove 61.

[0033] The brake oil pipe joint thread testing device of this utility model has a thread test plate 6 installed on the joint thread through an internal thread groove 61. When the joint thread enters the interior of the thread groove 61, the pressing device 62 can press the joint nut of the joint thread, which can not only ensure the accurate position of the joint thread during testing, but also test double-ended threads at the same time, saving thread testing time.

[0034] Working principle: First, the connector thread is placed inside the thread groove 61. When the connector thread is placed, the pressing devices 62 on the four sides inside the thread groove 61 are under pressure and move backward through spring 63, making it easy for the connector thread to be placed at the bottom of the thread groove 61. When the connector thread is at the bottom of the thread groove 61, one end of the pressing device 62 is not under pressure and is unfolded by spring 63, pressing the top of the connector thread, so that the connector thread is accurately fixed inside the thread test plate 6 for testing. The circular hole groove between the connector thread and the test plate 25 and the rotating shaft 5 below are vertically aligned. The setting of the hydraulic cylinder 2 driving the piston rod 21 to press down makes the test plate 25 press down. The test plate 25 is elastically connected to the thread test plate 6 through spring 66, so that the test plate 25 and the thread test plate 6 test the top of the connector thread. Since the connector thread inside the thread groove 61 descends synchronously, the lower connector thread can be located above the rotating shaft 5. The rotating shaft 5 is rotated by the servo motor 3 to perform a gauge test on the inside of the connector thread, which greatly improves the testing efficiency of the connector thread.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A brake hose connector thread testing device, comprising a testing frame (1), a hydraulic cylinder (2), a servo motor (3), a rotating shaft (5), and a thread testing plate (6), characterized in that: The hydraulic cylinder (2) is fixedly installed on the top side of the test frame (1), and a servo motor (3) is installed at the bottom of the test frame (1). A threaded rotating shaft (5) is rotatably connected to the midpoint of the servo motor (3). A threaded test plate (6) is installed above the rotating shaft (5). A threaded test plate (25) is installed below the hydraulic cylinder (2). A support rod (23) is connected to the four sides of the top of the test plate (25), and the top of the support rod (23) is connected to the midpoint of the bottom of the hydraulic cylinder (2). The thread test plate (6) has a threaded groove (61) in the middle, and a pressing device (62) is movably installed on one side of the threaded groove (61). The side of the pressing device (62) is symmetrically inclined. A spring (63) is movably connected to the rear of the pressing device (62), and an outer ring (65) is installed on the outside of the spring (63). The thread test plate (6) is elastically connected to the bottom of the detection plate (25) through springs (66) on the four sides above.

2. The brake hose joint thread detection device according to claim 1, characterized in that: The servo motor (3) is mounted on a fixed plate (4) at its bottom, and the fixed plate (4) is fixedly mounted on the bottom of the detection frame (1). The rotating shaft (5) is horizontally located below the threaded groove (61).

3. The brake hose joint thread detection device according to claim 1, characterized in that: A piston rod (21) is movably connected to the bottom center of the hydraulic cylinder (2), and a bottom ring (22) is sleeved on the bottom end of the piston rod (21). The upper end of the support rod (23) is connected to the four sides of the bottom ring (22), and a connector (24) is connected to the bottom end of the support rod (23). The connector (24) is fixedly installed on the four sides above the detection plate (25).

4. The brake hose joint thread detection device according to claim 1, characterized in that: The spring (63) is elastically connected to the outer ring (65) through a connecting ring (64) at one end, and the outer ring (65) is located on the inner side of the threaded groove (61). The upper part of the side of the threaded groove (61) is hollow, and the spring (63) is located in the hollow part of the side of the threaded groove (61).

5. The brake hose joint thread detection device according to claim 3, characterized in that: The detection plate (25) also has a threaded circular hole in the middle, and the threaded groove (61) and the upper and lower midpoints of the circular hole correspond to each other. The detection plate (25) is located on the upper side of the detection frame (1).

6. The brake hose joint thread detection device according to claim 1, characterized in that: The thread test plate (6) is located in the middle of one side of the test frame (1), and the connector thread body (7) is installed inside the thread groove (61).

7. The brake hose joint thread detection device according to claim 3, characterized in that: The piston rod (21) is inserted through the top middle of the test frame (1), and the bottom ring (22) and the threaded groove (61) are in corresponding positions.

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