Anti-loose brake pipe hard pipe joint

Abstract

The utility model discloses a kind of anti-loose brake pipe hard pipe joints, it includes connecting pipe head one, the front side of the one end of connecting pipe head one is equipped with two slot one, the rear of two slot one is equipped with outer thread in connecting pipe head one, the front end thread of connecting pipe head one is equipped with connecting pipe head two, the front end in connecting pipe head two is equipped with internal thread, the rear of internal thread in connecting pipe head two is equipped with two slot two, internal thread and outer thread are adapted, two slot one and two slot two are same, two slot one and two slot two are equipped with sealing ring in, sealing ring uses fluorine rubber oil-resistant material, by slot one and slot two are equipped with sealing ring in, sealing ring forms double sealing barrier, substantially improve the sealing reliability of high-pressure brake oil environment to avoid seepage, avoid the air into brake pipeline, leading to brake reaction tardy, significantly reduce the security risk of vehicle braking.

Description

Technical Field

[0001] This utility model relates to the field of brake pipe connection technology, and in particular to a non-loosening brake pipe rigid pipe joint. Background Technology

[0002] In automotive braking systems, the brake hose rigid pipe connector is the core component connecting multiple brake hoses. It adopts a standardized interface according to national standards. As a key node in the brake fluid transmission channel, it directly determines the effective transmission efficiency of brake pressure, and the connection stability and sealing reliability are directly related to driving safety. The existing anti-loosening brake hose rigid pipe joints still have the following problems: Some anti-loosening brake line hard pipe joints are mostly connected by metal surfaces, which leads to insufficient sealing. Under pressure, brake fluid will leak from the contact gap, causing a drop in the hydraulic pressure of the braking system and affecting the braking effect. This leakage can also allow air to enter the brake line, resulting in longer brake pedal travel, sluggish braking response, increased vehicle braking distance and safety hazards. Some anti-loosening brake hose hard pipe joints have a connection structure that is too simple, relying solely on threaded connections and lacking multiple anti-loosening guarantees. Furthermore, the threaded mating surfaces are prone to gaps due to vibration. Under vehicle vibration, the threaded connection is prone to loosening, leading to seal failure and leakage, which affects the safety of the braking system. Utility Model Content

[0003] The purpose of this utility model is to provide a non-loosening brake pipe rigid pipe joint, which solves the problems of existing non-loosening brake pipe rigid pipe joints, which mostly use metal surfaces for connection and contact, resulting in insufficient sealing. Under pressure, brake fluid will leak from the contact gap, causing a drop in the hydraulic pressure of the braking system and affecting the braking effect. This leakage can also allow air to enter the brake line, resulting in longer brake pedal travel, sluggish braking response, increased vehicle braking distance and safety hazards. In addition, the connection structure is too simple, relying only on threaded connection without multiple anti-loosening guarantees. Moreover, the threaded mating surface is prone to gaps due to vibration. Under vehicle vibration, the threaded connection is prone to loosening, leading to seal failure and leakage, which affects the safety of the braking system.

[0004] To achieve the above objectives, a non-loosening brake hose rigid pipe connector is provided, including a connecting pipe head one. Two slots are formed on the front side of one end of the connecting pipe head one. An external thread is formed behind the two slots. A connecting pipe head two is threadedly installed at the front end of the connecting pipe head one. An internal thread is formed at the front end of the connecting pipe head two. Two slots are formed behind the internal thread in the connecting pipe head two. The internal thread and the external thread are compatible. A connecting plate one is fixedly installed at the outer end of the connecting pipe head one behind the external thread. A connecting plate two is fixedly installed at the front end of the connecting pipe head two.

[0005] According to the aforementioned anti-loosening brake pipe hard pipe joint, the two slots one and the two slots two are identical, and a sealing ring is provided in each of the two slots one and the two slots two. The sealing ring is made of fluororubber oil-resistant material.

[0006] According to the aforementioned anti-loosening brake pipe hard pipe connector, both the connecting plate one and the connecting plate two are provided with a plurality of threaded holes, and anti-loosening bolts are threadedly installed in each of the threaded holes.

[0007] According to the aforementioned anti-loosening brake pipe rigid pipe joint, the ends of the anti-loosening bolts are all threaded with anti-loosening nuts.

[0008] According to the aforementioned anti-loosening brake pipe hard connector, an annular groove is provided on one side of the connecting plate.

[0009] According to the aforementioned anti-loosening brake pipe hard pipe connector, a fixing ring is fixedly installed on one side of the connecting plate two, and the fixing ring is adapted to the annular groove.

[0010] The above-mentioned solution has the following beneficial effects: This patent features a threaded connection with two connecting pipe heads, each with a slot and a sealing ring inside. During use, the threaded connection provides stable support and convenient installation and adjustment, while the sealing rings form a double sealing barrier. This significantly improves the sealing reliability of the high-pressure brake fluid environment to prevent leakage and avoids air entering the brake lines, which would lead to longer brake pedal travel and sluggish braking response. This significantly reduces vehicle braking distance and safety hazards. This patent, by setting anti-loosening bolts and anti-loosening nuts, avoids the loosening problem caused by vibration in traditional threaded connections during use through a double fixing structure. It ensures that the threaded connection between the first and second connecting pipe ends maintains a stable preload for a long time, further ensuring the connection sealing performance under high-pressure brake fluid environment, reducing the risk of leakage and improving the safety of the braking system.

[0011] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is an overall schematic diagram of an anti-loosening brake pipe rigid pipe joint according to the present invention; Figure 2 This is a schematic diagram of the connecting pipe head of a non-loosening brake pipe rigid pipe joint according to the present invention; Figure 3 This is a schematic diagram of the connecting pipe head of a brake pipe rigid pipe joint according to the present invention.

[0013] Legend: 1. Connecting pipe end one; 2. Connecting plate one; 3. Connecting pipe end two; 4. Anti-loosening bolt; 5. Connecting plate two; 6. Anti-loosening nut; 7. Threaded hole; 8. Annular groove; 9. External thread; 10. Sealing ring; 11. Slot one; 12. Internal thread; 13. Slot two; 14. Retaining ring. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] Reference Figure 1-3 This utility model discloses an anti-loosening brake hose rigid pipe connector, which includes a connecting pipe head 1. Two slots 11 are formed on the front side of one end of the connecting pipe head 1. An external thread 9 is formed behind the two slots 11 on the connecting pipe head 1. A connecting pipe head 2 3 is threadedly installed at the front end of the connecting pipe head 1. An internal thread 12 is formed at the front end of the connecting pipe head 2 3. Two slots 13 are formed behind the internal thread 12 in the connecting pipe head 2 3. The internal thread 12 and the external thread 9 are compatible. A connecting plate 2 is fixedly installed at the outer end of the connecting pipe head 1 behind the external thread 9. The front end of the connecting pipe head 2 3... A connecting plate 2 5 is fixedly installed at the end. The two slots 11 and 2 13 are the same. A sealing ring 10 is provided in each of the two slots 11 and 2 13. The sealing ring 10 is made of fluororubber oil-resistant material. In use, firstly, the connecting pipe head 1 is threaded to the connecting pipe head 2 3 through the external thread 9. During the process, the slot 11 of the connecting pipe head 1 and the slot 2 13 of the connecting pipe head 2 3 are correspondingly fitted. The fluororubber oil-resistant sealing ring 10 in the slot is squeezed and deformed to form an initial sealing barrier. The oil resistance and elasticity of fluororubber are used to ensure the basic sealing performance when the brake fluid is delivered. Both connecting plate 2 and connecting plate 5 have several threaded holes 7, and anti-loosening bolts 4 are threaded into each threaded hole 7. Anti-loosening nuts 6 are threadedly fixed to the ends of the anti-loosening bolts 4. An annular groove 8 is formed on one side of connecting plate 2, and a fixing ring 14 is fixedly installed on one side of connecting plate 5. The fixing ring 14 is adapted to the annular groove 8. After the threaded connection is completed, the annular groove 8 of connecting plate 2 and the fixing ring 14 of connecting plate 5 are precisely engaged to achieve positioning and limit, and to prevent relative rotation and displacement between the connecting pipe ends. Subsequently, by screwing anti-loosening bolts 4 into the threaded holes 7 of connecting plate 2 and connecting plate 5, and tightening the anti-loosening nuts 6 at the ends, the anti-loosening structure characteristics of the anti-loosening bolts 4 and anti-loosening nuts 6 are used to apply a stable preload to firmly fix the two connecting plates, further enhancing the overall connection strength, resisting the vibration and impact of the vehicle during driving, and preventing the threaded connection from loosening.

[0016] Working principle: When a non-loosening brake hose rigid pipe connector is put into use, firstly, connecting pipe head 1 is threadedly connected to the internal thread 12 of connecting pipe head 3 via the external thread 9. During the process, the slot 11 of connecting pipe head 1 and the slot 13 of connecting pipe head 3 correspond and fit together. The fluororubber oil-resistant sealing ring 10 in the slot is compressed and deformed, forming an initial sealing barrier. The oil resistance and elasticity of fluororubber ensure the basic sealing performance during brake fluid delivery. Secondly, after the threaded connection is completed, the annular groove 8 of connecting plate 2 and the fixing ring 14 of connecting plate 5 are precisely engaged to achieve positioning and limit, preventing relative rotation between the connecting pipe heads. Then, by screwing anti-loosening bolts 4 into the threaded holes 7 of connecting plate 1 2 and connecting plate 2 5, and tightening anti-loosening nuts 6 at the ends, the anti-loosening structural characteristics of anti-loosening bolts 4 and anti-loosening nuts 6 are used to apply a stable preload force to firmly fix the two connecting plates, further enhancing the overall connection strength, resisting vibration and impact during vehicle operation, and preventing the threaded connection from loosening. At the same time, the engagement of the fixing ring 14 with the annular groove 8, combined with the tightening force of anti-loosening bolts 4 and anti-loosening nuts 6, keeps the sealing ring 10 in a continuously compressed state, providing double protection for sealing performance, and ultimately achieving long-term stable connection, anti-loosening and sealing functions of the joint under high-pressure brake fluid environment.

[0017] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A type of anti-loosening brake hose rigid pipe connector, comprising a connecting pipe head (1), characterized in that, Two slots (11) are opened on the front side of one end of the connecting pipe head 1 (1). An external thread (9) is opened behind the two slots (11). A connecting pipe head 2 (3) is threaded on the front end of the connecting pipe head 1 (1). An internal thread (12) is opened at the front end of the connecting pipe head 2 (3). Two slots (13) are opened behind the internal thread (12) in the connecting pipe head 2 (3). The internal thread (12) and the external thread (9) are compatible. A connecting plate 1 (2) is fixedly installed at the outer end of the connecting pipe head 1 (1) behind the external thread (9). A connecting plate 2 (5) is fixedly installed at the front end of the connecting pipe head 2 (3).

2. The anti-loosening brake pipe rigid pipe joint according to claim 1, characterized in that, The two slots (11) and the two slots (13) are identical. Each of the two slots (11) and the two slots (13) is provided with a sealing ring (10). The sealing ring (10) is made of fluororubber oil-resistant material.

3. The anti-loosening brake pipe rigid pipe joint according to claim 1, characterized in that, Both the first connecting plate (2) and the second connecting plate (5) are provided with several threaded holes (7), and anti-loosening bolts (4) are threaded into each of the threaded holes (7).

4. The anti-loosening brake pipe rigid pipe joint according to claim 3, characterized in that, The ends of the anti-loosening bolts (4) are all threaded with anti-loosening nuts (6).

5. The anti-loosening brake pipe rigid pipe joint according to claim 1, characterized in that, An annular groove (8) is provided on one side of the connecting plate (2).

6. The anti-loosening brake pipe rigid pipe joint according to claim 1, characterized in that, A fixing ring (14) is fixedly installed on one side of the connecting plate 2 (5), and the fixing ring (14) is adapted to the annular groove (8).

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