Fuel oil quick-plug choke plug

Abstract

The utility model discloses a fuel oil quick-plug choke plug which comprises a choke plug body, and a containing cavity is formed in the choke plug body. Fixing bases are arranged on the two sides of the lower portion of the choke plug body respectively, clamping hooks are hinged to the fixing bases, and each clamping hook comprises a handle and a hook head. According to the utility model, a quick-plug female head is replaced to be connected with a male head; the assembly and disassembly time is shortened, the production efficiency is improved, and the quick-plug female head is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, and particularly relates to a fuel quick-insert plug. Background Art

[0002] The high-pressure common rail system refers to a fuel supply method in a closed-loop system composed of a high-pressure common rail pump, an injector, a common rail pipe, sensors, and an ECU, in which the generation of injection pressure and the injection process are completely separated from each other. During operation, the high-pressure common rail pump can convert low-pressure fuel into high-pressure fuel and transport it to the common rail pipe for storage. Under the control of the ECU, the fuel in the common rail pipe is precisely injected through the injector. The electronically controlled high-pressure common rail injection technology can easily achieve the control of quickly adjusting the fuel injection volume. Coupled with a high-speed injector that can accurately control the opening and closing times, it is very easy to achieve the control of the injection time. Therefore, the start and end of fuel injection can be changed according to the engine working conditions.

[0003] The high-pressure common rail pump consists of components such as a pump body, a plunger and a plunger ring, a camshaft and a push rod, and a fuel supply pump. When performing a sealing test on the high-pressure common rail pump, it is necessary to block the male head on the pump body. Currently, a fuel quick-insert female head used on the engine is adopted for sealing to ensure that there is no leakage caused by different connectors during customer use. However, the quick-insert female heads on the market do not need to be frequently unplugged and replugged. And in order to prevent loosening due to vibration during operation, anti-loosening treatment is done. Therefore, when employees frequently unplug and replug during mass production, it is found that the quick-insert female head is not easy to pull out, which is not suitable for mass production. Moreover, most of the quick-insert female heads on the market are made of plastic materials, which are prone to damage after long-term use, and the use cost is relatively high during mass production. Content of the Utility Model

[0004] To solve the above problems, the utility model provides a fuel quick-insert plug, which is connected to the male head instead of the quick-insert female head; it reduces the installation and disassembly time, improves production efficiency, and at the same time avoids the damage of the quick-insert female head.

[0005] To achieve the above object, the technical solution adopted by the utility model is: a fuel quick-insert plug, including a plug main body, and an accommodation cavity is arranged inside the plug main body; fixed seats are respectively arranged on both sides below the plug main body, and hooks are hinged on the fixed seats, and the hooks include a handle and a hook head.

[0006] As a preferred technical solution of the utility model: at least one group of sealing rings is arranged inside the accommodation cavity.

[0007] As a preferred technical solution of the utility model: the handle is connected to the plug main body through a spring.

[0008] As a preferred technical solution of the utility model: the spring is located at the top of the handle and the plug main body.

[0009] As a preferred technical solution of the present utility model: the lower part of the hook head is in the shape of an inclined side.

[0010] As a preferred technical solution of the present utility model: the materials of the blind head body, the fixed seat, and the hook are steel materials.

[0011] The present utility model has the following beneficial effects:

[0012] 1. It replaces the quick-insert female head to be connected with the male head; reduces the installation and disassembly time, improves production efficiency, and at the same time avoids the damage of the quick-insert female head.

[0013] 2. The materials of the blind head body, the fixed seat, and the hook are steel materials, and the steel materials increase the service life.

[0014] 3. The lower part of the hook head is arranged in the shape of an inclined side, which is convenient for the male head to slide into the accommodation cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0016] Figure 2 It is a schematic diagram of the structure when the present utility model is in use;

[0017] Figure 1 - Figure 2 In the figure, 1. Blind head body; 2. Accommodation cavity; 3. Male head; 4. Fixed seat; 5. Hook; 6. Pin; 7. Handle; 8. Hook head; 9. Sealing ring; 10. Spring; 11. Installation groove; 12. Power arm; 13. Resistance arm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the purpose and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0019] As Figure 1 - Figure 2 shown, the embodiment of the present utility model provides a fuel quick-insert blind head, including a blind head body 1, and an accommodation cavity 2 is arranged in the blind head body 1; the accommodation cavity 2 is used to be connected with a male head 3. On both sides below the blind head body 1, fixed seats 4 are respectively arranged, and hooks 5 are hinged on the fixed seats 4. In this embodiment, it is preferably that the hooks 5 are rotatably connected to the fixed seats 4 through pins 6. The hooks 5 include handles 7 and hook heads 8. The two groups of hook heads 8 cooperate with each other to fix the male head 3 after the male head 3 is inserted into the accommodation cavity 2. This embodiment can replace the quick-insert female head to be connected with the male head 3; reduce the installation and disassembly time, improve production efficiency, and at the same time avoid the damage of the quick-insert female head.

[0020] At least one set of sealing rings 9 is provided in the receiving cavity 2. The sealing ring 9 is an O-ring, which ensures good sealing between the male head 3 and the receiving cavity 2 and guarantees the accuracy of the test. In this embodiment, preferably two sets of O-rings are used.

[0021] The handle 7 is connected to the plug body 1 through a spring 10. To better fix the spring 10, mounting grooves 11 are provided on the handle 7 and the plug body 1, and both ends of the spring 10 are respectively connected in the mounting grooves 11. A spring 10 is provided above the hook 5 to ensure that the hook 5 firmly holds the male head 3 during use. In this embodiment, the hook 5 above the pin 6 is the power arm 12, and below the pin 6 is the resistance arm 13. The top of the power arm 12 is arranged near the top of the plug body 1. At the same time, a spring 10 with a small elastic force is selected, so that the operator can easily pinch open the hook 5 and the space of the hook 5 is much larger than the male head retaining ring, facilitating the smooth removal of the male head after the test. For the convenience of the operator, the spring 10 is arranged near the top of the power arm 12 and the plug body 1.

[0022] The lower part of the hook head 8 is beveled, with the direction from the outside to the inside. This facilitates the male head 3 to slide into the receiving cavity 2. The plug body 1, the fixing seat 4, and the hook 5 are made of steel materials, which increases the service life.

[0023] The working principle of this specific embodiment is as follows: During sealing, the device is sleeved on the male head 3, and the employee gently presses it downwards. The retaining ring of the male head 3 pushes open the hook 5 and contacts the bottom of the plug body 1. At the same time, the spring 10 above the hook 5 pushes open the hook 5, so that the lower end of the hook 5 hooks the retaining ring on the male head 3, preventing the plug from falling off during the airtight detection. The two sets of O-rings provide sealing to ensure tightness.

[0024] After the test, the employee pinches the upper part of the hook 5, overcomes the force of the spring 10 and releases the hook 5, and then removes the plug from the male head 3.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0026] The above is only the preferred embodiment of the present utility model. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present utility model.

Claims

1. A fuel quick-plug plug, characterized in that: The invention comprises a bulkhead body (1), wherein a receiving chamber (2) is arranged inside the bulkhead body (1); fixing seats (4) are respectively arranged on two sides below the bulkhead body (1), and a hook (5) is hinged on the fixing seat (4), and the hook (5) comprises a handle (7) and a hook head (8).

2. A fuel quick-plug plug according to claim 1, characterized in that: At least one set of sealing rings (9) is arranged in the accommodating cavity (2).

3. The fuel quick-plug plug according to claim 1, characterized in that: The handle (7) is connected to the bulkhead body (1) via a spring (10).

4. A fuel quick-plug plug according to claim 3, characterized in that: The spring (10) is located on top of the handle (7) and the bulkhead body (1).

5. The fuel quick-plug plug according to claim 3, characterized in that: The lower part of the hook head (8) is in a bevel shape.

6. A fuel quick-connect plug according to any one of claims 1 to 5, characterized in that: The bulkhead body (1), the fixing seat (4) and the hook (5) are made of steel.

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