Charging valve cap for diesel engine

Abstract

The utility model discloses a charging bonnet for a diesel engine, which comprises a charging bonnet main body, and a protective sealing mechanism is positioned and mounted at the upper end of the charging bonnet main body. According to the filling valve bonnet for the diesel engine, due to the arrangement of the protective sealing mechanism and the dual sealing of the inner sealing ring block and the rubber flexible pad, dust, water and other impurities can be effectively prevented from entering the valve bonnet, and therefore a filling valve is protected against pollution and corrosion, and the service life of the filling valve bonnet is prolonged. The improved sealing performance can reduce abrasion and corrosion of the valve bonnet and the filling valve, when the valve bonnet needs to be used, only the inner sealing ring block needs to be pulled out, and operation is easy and convenient. Meanwhile, cleaning and replacement are convenient, when the valve bonnet does not need to be used, the inner sealing ring block can serve as a physical barrier, leakage or pollution caused by misoperation is prevented, the valve bonnet can be used in various environments, and good sealing performance can be kept under the humid, dusty or extreme temperature conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of filling valve cap, concretely to a filling valve cap for diesel engine. BACKGROUND

[0002] The filling valve cap for diesel engine is an important component in the fuel system of diesel engine, which is mainly used for closing and protecting the filling valve of common rail fuel injector, preventing dust, impurities and other pollutants from entering the valve, and ensuring the normal operation of the fuel system. The filling valve cap is usually made of high-strength materials such as brass or stainless steel to ensure its durability and reliability in high-pressure and high-temperature environments. The design of the valve cap needs to be closely matched with the filling valve to ensure good sealing performance and prevent fuel leakage.

[0003] The common filling valve cap for diesel engine usually does not have a sealing protection structure, which is easily affected by dust, moisture and other pollutants, causing rust or damage inside the valve cap. The filling valve cap needs to be cleaned and maintained frequently, increasing the maintenance cost and workload. Moreover, the material of the filling valve cap may age or corrode when exposed to the external environment for a long time, shortening its service life and causing certain adverse effects on the use process. Therefore, we propose a filling valve cap for diesel engine. SUMMARY

[0004] The technical problem solved by the present application is to provide a filling valve cap for diesel engine, which has the advantages of improved sealing and protection of the valve cap, and can effectively solve the problems in the background art.

[0005] Technical solution: To achieve the above purpose, the utility model takes the technical scheme that a filling valve cap for diesel engine, including filling valve cap main part, the upper end of filling valve cap main part is located and installed with protection sealing mechanism, protection sealing mechanism includes insertion positioning hole, positioning anti-off hole, protection connection cover, pull handle, protection outer sleeve, inner sealing ring block, rubber flexible pad, insertion positioning block, triangular positioning block and outer anti-skid pad.

[0006] Preferably, the insertion positioning holes are arranged on both sides of the upper end of the filling valve cap main body, the positioning anti-off holes are arranged on both sides of the inner wall of the insertion positioning holes, the pull handle is located at the upper end of the protection connection cover, and the protection outer sleeve is located on the outer wall of the pull handle.

[0007] Preferably, the inner sealing ring block is located at the lower end of the protection connection cover, the rubber flexible pad is located on the outer wall of the inner sealing ring block, and the insertion positioning blocks are located on both sides of the lower end of the protection connection cover.

[0008] Preferably, the triangular positioning blocks are located on both sides of the insertion positioning blocks, and the outer anti-skid pads are located on the outer wall of the insertion positioning blocks.

[0009] Preferably, the lower end of the lifting handle is fixedly connected with the upper end of the protective connecting cover, the inner wall of the protective outer sleeve is positioned by being attached to the outer wall of the lifting handle through strong glue, and the upper end of the inner sealing ring block is fixedly connected with the lower end of the protective connecting cover.

[0010] Preferably, the inner side of the rubber flexible pad is positioned by being attached to the outer wall of the inner sealing ring block through strong glue, the upper end of the insertion positioning block is fixedly connected with the two sides of the lower end of the protective connecting cover, the rear end of the triangular positioning clamping block is fixedly connected with the two sides of the insertion positioning block, and one side of the outer anti-skid pad is fixedly connected with the outer wall of the insertion positioning block.

[0011] Beneficial effects: Compared with the prior art, the utility model provides a kind of filling valve cap for diesel engine, with following beneficial effects: the filling valve cap for diesel engine, by setting up protective sealing mechanism, through the double sealing of inner sealing ring block and rubber flexible pad, dust, moisture and other impurities can be effectively prevented from entering the inside of filling valve cap main part, so as to protect filling valve cap main part from pollution and corrosion, the sealing property of enhancement can reduce the wear and corrosion of valve cap and filling valve, thereby prolonging its service life, when needing to use valve cap, just pull out inner sealing ring block, simple and convenient operation.At the same time, it is convenient to clean and replace, when not needing to use valve cap, inner sealing ring block can be used as a physical barrier to prevent leakage or pollution caused by misoperation, can be used in various environments, whether humid, dusty or extreme temperature conditions, can maintain good sealing performance. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the overall structure schematic diagram of the utility model a kind of filling valve cap for diesel engine.

[0013] Figure 2 It is the exploded schematic diagram of protective connecting cover and filling valve cap main body in the utility model a kind of filling valve cap for diesel engine.

[0014] Figure 3 It is the partial structure schematic diagram of filling valve cap main body and protective sealing mechanism in the utility model a kind of filling valve cap for diesel engine.

[0015] Figure 4 It is the partial structure schematic diagram of protective sealing mechanism in the utility model a kind of filling valve cap for diesel engine.

[0016] In the diagram: 1. Filling valve cap body; 2. Protective sealing mechanism; 201. Insertion positioning hole; 202. Positioning anti-dislodgement hole; 203. Protective connecting cover; 204. Lifting handle; 205. Protective outer sleeve; 206. Inner sealing ring block; 207. Rubber flexible pad; 208. Insertion positioning block; 209. Triangular positioning block; 210. Outer anti-slip pad. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] like Figures 1-4 As shown, a filling valve cap for a diesel engine includes a filling valve cap body 1. A protective sealing mechanism 2 is positioned and installed on the upper end of the filling valve cap body 1. The protective sealing mechanism 2 includes an insertion positioning hole 201, a positioning anti-dislodgement hole 202, a protective connecting cover 203, a lifting handle 204, a protective outer sleeve 205, an inner sealing ring block 206, a rubber flexible pad 207, an insertion positioning block 208, a triangular positioning block 209, and an outer anti-slip pad 210.

[0019] Furthermore, the insertion positioning holes 201 are all opened on both sides of the upper end of the filling valve cap body 1, the positioning anti-dislodgement holes 202 are opened on both sides of the inner wall of the insertion positioning holes 201, the handle 204 is located at the upper end of the protective connecting cover 203, and the protective outer sleeve 205 is located on the outer wall of the handle 204, which can play a certain protective role.

[0020] Furthermore, the inner sealing ring block 206 is located at the lower end of the protective connecting cover 203, the rubber flexible pad 207 is located on the outer wall of the inner sealing ring block 206, and the insertion positioning blocks 208 are located on both sides of the lower end of the protective connecting cover 203. The insertion positioning blocks 208 and the insertion positioning holes 201 are mutually adapted.

[0021] Furthermore, the triangular positioning blocks 209 are located on both sides of the insertion positioning block 208, and the outer anti-slip pad 210 is located on the outer wall of the insertion positioning block 208, which can enhance the friction and make the engagement more secure.

[0022] Furthermore, the lower end of the handle 204 is fixedly connected to the upper end of the protective connecting cover 203, the inner wall of the protective outer sleeve 205 is bonded and positioned to the outer wall of the handle 204 with strong adhesive, and the upper end of the inner sealing ring block 206 is fixedly connected to the lower end of the protective connecting cover 203 to enhance the firmness.

[0023] Further, the inner side of the rubber flexible pad 207 is attached and positioned with the outer wall of the inner sealing ring block 206 by strong glue, the upper end of the inserted positioning block 208 is fixedly connected with the two sides of the lower end of the protective connection cover 203, the rear end of the triangular positioning clamping block 209 is fixedly connected with the two sides of the inserted positioning block 208, and one side of the outer anti-skid pad 210 is fixedly connected with the outer wall of the inserted positioning block 208, so as to enhance the stability.

[0024] Working principle: a kind of filling valve cap for diesel engine, including filling valve cap main body 1 and protective sealing mechanism 2, by setting protective sealing mechanism 2, inner sealing ring block 206 inserts the upper end of filling valve cap main body 1, inserted positioning block 208 inserts the inner side of inserted positioning hole 201, triangular positioning clamping block 209 of inserted positioning block 208 outer wall is positioned into the positioning anti-off hole 202 in the inner side of inserted positioning hole 201, so that protective connection cover 203 and filling valve cap main body 1 are quickly positioned, the outer wall of inner sealing ring block 206 has rubber flexible pad 207, which can enhance the sealing performance, the outer wall of inserted positioning block 208 has outer anti-skid pad 210, which can enhance the friction, so that the clamping is more fastened, when operating, pull up pull handle 204, protective outer sleeve 205 on the outer wall of pull handle 204 can play a certain protective role, the filling valve cap for diesel engine is positioned by setting the protective sealing mechanism, the double sealing of inner sealing ring block 206 and rubber flexible pad 207 can effectively prevent dust, moisture and other impurities from entering the inside of filling valve cap main body, so as to protect the filling valve cap main body from pollution and corrosion, the enhanced sealing performance can reduce the wear and corrosion of valve cap and filling valve, thereby prolonging the service life, when the valve cap needs to be used, the inner sealing ring block can be pulled out, which is simple and convenient to operate, at the same time, it is convenient to clean and replace, when the valve cap is not needed, the inner sealing ring block can be used as a physical barrier to prevent leakage or pollution caused by misoperation, and it can be used in various environments, whether it is humid, dusty or extreme temperature conditions, it can maintain good sealing performance.

[0025] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without limitation, any of the steps of any of the methods described herein can be performed in any feasible order.

[0026] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A charge valve cap for a diesel engine, comprising a charge valve cap body (1), characterized in that: The upper end of the filling valve cap body (1) is positioned and installed with a protective sealing mechanism (2), which comprises an insertion positioning hole (201), a positioning anti-dropping hole (202), a protective connection cover (203), a lifting handle (204), a protective outer sleeve (205), an inner sealing ring block (206), a rubber flexible pad (207), an insertion positioning block (208), a triangular positioning clamping block (209), and an outer anti-skid pad (210).

2. A filler cap for a diesel engine according to claim 1, characterised in that: The insertion positioning holes (201) are both formed on the upper end of the filling valve cap body (1) on both sides, the positioning anti-dropping holes (202) are formed on the inner walls of the insertion positioning holes (201) on both sides, the lifting handle (204) is located on the upper end of the protective connection cover (203), and the protective outer sleeve (205) is located on the outer wall of the lifting handle (204).

3. A filler cap for a diesel engine according to claim 2, characterised in that: The inner sealing ring block (206) is located on the lower end of the protective connection cover (203), the rubber flexible pad (207) is located on the outer wall of the inner sealing ring block (206), and the insertion positioning block (208) is located on both sides of the lower end of the protective connection cover (203).

4. A filler cap for a diesel engine according to claim 3, characterised in that: The triangular positioning clamping block (209) is located on both sides of the insertion positioning block (208), and the outer anti-skid pad (210) is located on the outer wall of the insertion positioning block (208).

5. A filler cap for a diesel engine according to claim 4, characterised in that: The lower end of the lifting handle (204) is fixedly connected with the upper end of the protective connection cover (203), the inner wall of the protective outer sleeve (205) is positioned and attached to the outer wall of the lifting handle (204) through strong glue, and the upper end of the inner sealing ring block (206) is fixedly connected with the lower end of the protective connection cover (203).

6. A filler cap for a diesel engine according to claim 5, characterised in that: The inner side of the rubber flexible pad (207) is positioned and attached to the outer wall of the inner sealing ring block (206) through strong glue, the upper end of the insertion positioning block (208) is fixedly connected with both sides of the lower end of the protective connection cover (203), the rear end of the triangular positioning clamping block (209) is fixedly connected with both sides of the insertion positioning block (208), and one side of the outer anti-skid pad (210) is fixedly connected with the outer wall of the insertion positioning block (208).

Images