Device for rapidly detecting spatial spraying angle of oil nozzle

By designing a device to quickly detect the spray angle of the oil nozzle space, the combination of the connecting sleeve and the sealing part solves the inconvenient installation of the joint and the oil nozzle and the oil nozzle, and achieves strong sealing and rapid detection effects.

CN223270085UActive Publication Date: 2025-08-26WUXI DOKA NUMERICAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422593583.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-27
Publication Date
2025-08-26
Estimated Expiration
2034-10-27

AI Technical Summary

Technical Problem

When detecting the spray angle of the diesel engine fuel injector nozzle, the joints and oil nozzles are inconvenient to install and there is a risk of oil leakage.

Method used

A device for quickly detecting the spray angle of the oil nozzle space is designed, including a joint and an oil nozzle arranged in a separate body. By combining the connecting sleeve and the sealing part, the sealing connection between the oil nozzle and the joint is realized to avoid oil leakage.

Benefits of technology

It achieves strong sealing between the oil nozzle and the joint, avoids the risk of oil leakage, and can quickly detect the spray angle.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223270085U_ABST
    Figure CN223270085U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of fuel injection of a diesel engine fuel system, and particularly relates to a device for quickly detecting the spatial spraying angle of an oil nozzle, which comprises a joint, an oil nozzle and a connecting sleeve, the joint and the oil nozzle are arranged in a split manner, the connecting sleeve is mounted at the assembling end of the joint, and the connecting part comprises the connecting sleeve and a sealing part sleeved on the outer wall of the connecting sleeve. The connector is installed at the oil inlet end of the oil nozzle through the connecting sleeve, and when the connector is inserted into the oil nozzle along the connecting sleeve, the oil nozzle extrudes the sealing part so that the sealing part can expand to fill the gap between the oil nozzle and the connector. Through the arrangement of the connecting sleeve and the sealing part sleeved on the outer wall of the connecting sleeve, after the connecting sleeve is inserted into the oil nozzle, the oil nozzle extrudes the sealing part, so that the sealing part expands to fill a gap between the oil nozzle and the connecting sleeve, oil is prevented from leaking from the connecting part, and the effect of high sealing performance of the connecting part is realized.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model belongs to the technical field of fuel injection of diesel engine fuel systems, in particular to a fuel injection nozzle, and in particular to a device for quickly detecting the spatial spray angle of the fuel injection nozzle. Background Art

[0002] Air-cooled diesel engines have many advantages such as low operating cost, environmental protection, and flexibility. They are attracting more and more attention and are widely used in agriculture, construction, industry, ships, vehicles and other fields, such as water pumps, micro-tillers, compressors, vibrators and generators. The fuel injector is the core component of the engine and has a huge impact on engine performance, especially the nozzle angle, which determines the spatial position of the oil beam in the combustion chamber. Combined with the engine intake vortex, it directly determines engine combustion, emissions, fuel consumption and power performance.

[0003] The detection device is used to detect the spray angle of the fuel injector, intuitively locate the landing point of the oil beam, compare it with the actual landing point of the part to be tested, and quickly determine the spatial angle and position of the spray hole. Therefore, checking the spray cone angle of the fuel injector is of great significance.

[0004] However, when inspecting the oil nozzle, it is inconvenient to install the joint to the oil nozzle, and there is a risk of oil leakage at the installation connection position.

[0005] Therefore, it is urgent to design a device for quickly detecting the spatial spray angle of the oil nozzle to solve the technical problem of the risk of oil leakage at the installation position of the joint and the oil nozzle.

[0006] It should be noted that the above information disclosed in this Background section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute prior art. Utility Model Content

[0007] The embodiments of the present disclosure at least provide a device for quickly detecting the spray angle of a nozzle space.

[0008] In a first aspect, an embodiment of the present disclosure provides a device for quickly detecting a spray angle of a fuel nozzle space, comprising: a connector and a fuel nozzle arranged separately;

[0009] a connecting sleeve, which is mounted on the fitting end of the connector;

[0010] Wherein, the connecting portion comprises: a connecting sleeve and a sealing portion sleeved on the outer wall of the connecting sleeve;

[0011] The joint is mounted to the oil inlet end of the oil nozzle through the connecting sleeve;

[0012] Furthermore, when the joint is inserted into the oil nozzle along the connecting sleeve, the oil nozzle squeezes the sealing portion, so that the sealing portion expands to fill the gap between the oil nozzle and the joint.

[0013] In an optional embodiment, a plurality of grooves are formed on the outer wall of the connecting sleeve at equal intervals;

[0014] A limiting ball is arranged inside the groove, and the limiting ball is elastically arranged inside the groove.

[0015] In an optional embodiment, the device for quickly detecting the spray angle of the nozzle space further includes an acrylic cover, wherein a pressure plate is provided at the bottom end of the interior of the acrylic cover;

[0016] The oil nozzle is located inside the acrylic cover and is installed on the pressing plate.

[0017] In an optional embodiment, a bottom plate is installed at the bottom end of the acrylic cover;

[0018] The joint is installed on the bottom plate and corresponds to the oil nozzle.

[0019] In an optional embodiment, the oil inlet end of the connector is connected to an oil pump, and an oil tank is installed at the oil inlet end of the oil pump.

[0020] In an optional embodiment, the sealing portion includes: a limiting plate sleeved on the outer wall of the connecting sleeve, and a sealing ring provided on a side of the limiting plate facing the nozzle;

[0021] Limiting blocks are slidably provided on both sides of the limiting plate;

[0022] During the process of inserting the connecting sleeve into the oil nozzle, the sealing ring abuts against the oil inlet end of the oil nozzle, and the oil nozzle squeezes the sealing ring so that the sealing ring is compressed and deformed along the surface of the limiting plate.

[0023] In an optional embodiment, a sealing groove is formed on the end surface of the oil nozzle facing the sealing ring, and the sealing groove corresponds to the sealing ring;

[0024] Two limiting grooves are provided in the sealing groove, and the limiting grooves correspond to the limiting blocks;

[0025] Furthermore, when the oil nozzle squeezes the sealing ring, the sealing ring is compressed and deformed outward along the sealing groove. After the limiting block is inserted into the limiting groove, the limiting block prevents the sealing ring from further deforming outward.

[0026] In an optional embodiment, the limiting groove is opened obliquely toward the axis of the oil nozzle;

[0027] After the limit block is inserted into the limit groove, the limit block slides inward along the inclined surface of the limit groove.

[0028] so that the sealing ring fills the gap between the grease nipple and the joint.

[0029] In an optional embodiment, a plurality of mounting grooves are formed on the inner wall of the oil nozzle at equal intervals; the mounting grooves correspond to the limiting balls.

[0030] The beneficial effect of the utility model is that, by providing a connecting sleeve and a sealing portion sleeved on the outer wall of the connecting sleeve, after the connecting sleeve is inserted into the oil nozzle, the oil nozzle squeezes the sealing portion so that the sealing portion expands to fill the gap between the oil nozzle and the connecting sleeve, thereby avoiding oil leakage from the connection and achieving a strong sealing effect at the connection.

[0031] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The objectives and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description, claims and drawings.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0034] Figure 1 A schematic diagram of a device for rapidly detecting the spray angle of a nozzle space provided by an embodiment of the present disclosure;

[0035] Figure 2 A schematic cross-sectional view of a connecting sleeve provided in an embodiment of the present disclosure;

[0036] Figure 3 A schematic diagram of the connection between a joint and a nozzle provided in an embodiment of the present disclosure.

[0037] In the picture:

[0038] 1. Acrylic cover; 11. Limiting groove; 12. Mounting slot;

[0039] 2. Press plate;

[0040] 3. Bottom plate;

[0041] 4. Fuel tank;

[0042] 5. Oil pump;

[0043] 6. Connector;

[0044] 7. Oil nozzle;

[0045] 8. Connecting portion; 81. Connecting sleeve; 82. Groove; 83. Limiting ball;

[0046] 9. Sealing part; 91. Sealing ring; 92. Limiting plate; 93. Limiting block;

[0047] 10. Sealing groove. DETAILED DESCRIPTION

[0048] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0049] Research has found that among related technologies, air-cooled diesel engines offer numerous advantages, including low operating costs, environmental friendliness, and flexibility. They are gaining increasing attention and are widely used in agriculture, construction, industry, ships, and vehicles. These include water pumps, tillers, compressors, vibrators, and generators. With the advancement of science and technology and increasing environmental protection requirements, the technological development of air-cooled diesel engines is also advancing. New materials, advanced technologies, and manufacturing processes are making these new engines more efficient and longer-lasting, while also reducing exhaust emissions and minimizing environmental pollution.

[0050] However, it is inconvenient to install the joint to the oil nozzle, and there is a risk of oil leakage at the installation connection position.

[0051] Therefore, it is urgent to design a device for quickly detecting the spatial spray angle of the oil nozzle to solve the technical problem of the risk of oil leakage at the installation position of the joint and the oil nozzle.

[0052] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0053] It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings. In addition, in the drawings, the thickness of components may be exaggerated or reduced in order to effectively describe the technical content.

[0054] Based on the above research, in order to solve the above technical problems, refer to Figure 1 and Figure 2At least one embodiment provides a device for quickly detecting the spatial spray angle of a fuel nozzle, comprising: a joint 6, a fuel nozzle 7, and a connecting portion 8. The joint 6 and the fuel nozzle 7 are separately provided. The fuel nozzle 7 is suitable for spraying fuel. The joint 6 is suitable for connecting the fuel nozzle 7 to supply fuel to the fuel nozzle 7 through the joint 6. The connecting portion 8 is installed at the assembly end of the joint 6. The connecting portion 8 includes a connecting sleeve 81 and a sealing portion 9 sleeved on the outer wall of the connecting sleeve 81. The joint 6 is installed to the oil inlet end of the fuel nozzle 7 through the connecting sleeve 81. When the connecting sleeve 81 is inserted into the interior of the fuel nozzle 7, the fuel nozzle 7 squeezes the sealing portion 9, and the sealing portion 9 expands to fill the gap between the fuel nozzle 7 and the joint 6. By providing the connecting sleeve 81 and the sealing portion 9, the above-mentioned components squeeze the sealing portion 9 after the joint 6 and the fuel nozzle 7 are connected, so that the sealing portion 9 expands to fill the gap between the fuel nozzle 7 and the joint 6, thereby avoiding oil leakage from the connection between the joint 6 and the fuel nozzle 7 and achieving a strong sealing effect at the connection.

[0055] Reference Figure 1 In some embodiments, in order to achieve the above-mentioned effect of supplying oil to the oil nozzle 7, the oil inlet end of the connector 6 is connected to the oil outlet end of the oil pump 5, the oil pump 5 is connected to the driving motor by transmission, and the oil inlet end of the oil pump 5 is installed with an oil tank 4. The driving motor drives the oil pump 5 to extract oil from the oil tank 4 and transport it to the oil inlet end of the connector 6, thereby supplying oil to the oil nozzle 7.

[0056] Reference Figure 1 In some embodiments, the device for rapidly detecting the spatial spray angle of a fuel nozzle further includes an acrylic housing 1. A pressure plate 2 is disposed at the bottom of the interior of the acrylic housing 1. A fuel nozzle 7 is located within the acrylic housing 1 and mounted on the pressure plate 2. The acrylic housing 1 is adapted to protect the fuel nozzle 7 while also preventing excessive dispersion of the oil sprayed from the nozzle 7. A base plate 3 is mounted at the bottom of the acrylic housing 1. A connector 6 is mounted on the base plate 3 and corresponds to the fuel nozzle 7, facilitating connection between the connector 6 and the fuel nozzle 7.

[0057] It should be pointed out that: by fixing the oil nozzle 7 with an accurate spray angle set in advance on the pressure plate 2, the oil nozzle 7 will spray an oil beam toward the inner wall of the acrylic cover 1, observe the landing point of the oil beam on the inner wall of the acrylic cover 1, and stick a sticker on the landing point of the oil beam to determine the position of the oil beam. Then, replace the untested oil nozzle 7, and test the oil nozzle 7 with oil to observe whether the subsequent oil beam sprayed by the oil nozzle 7 is on the sticker, and then quickly judge the spatial angle and position of the spray hole, so check the spray cone angle of the oil nozzle.

[0058] Reference Figure 2 and Figure 3In some embodiments, in order to realize the connection between the above-mentioned joint 6 and the oil nozzle 7, a plurality of grooves 82 are formed at equal intervals on the outer wall of the connecting sleeve 81, and a limiting ball 83 is provided inside the groove 82. The limiting ball 83 is elastically arranged inside the groove 82. As an option, the limiting ball 83 and the groove 82 are connected by a spring. A plurality of mounting grooves 12 are also formed at equal intervals on the inner wall of the oil nozzle 7. The mounting grooves 12 correspond to the limiting balls 83. The connecting sleeve 81 is inserted into the inner wall of the oil nozzle 7, and the limiting balls 83 are fixed by the inner wall of the oil nozzle 7. Extruded, it is completely located in the groove 82. When the connecting sleeve 81 continues to be inserted until the groove 82 and the mounting groove 12 are at the same height and correspond one to one, the limiting ball 83 is no longer squeezed by the inner wall of the oil nozzle 7. Each limiting ball 83 pops out a part from the groove 82, and a part of each limiting ball 83 is located in the groove 82, and the other part is located in the mounting groove 12. At this time, the connection between the joint 6 and the oil nozzle 7 is completed, and due to the setting of the limiting ball 83, the joint 6 and the oil nozzle 7 will not automatically separate, and the connection effect is good.

[0059] Reference Figure 2 and Figure 3 In some embodiments, in order to achieve the sealing effect of the sealing part 9, the sealing part 9 includes: a limiting plate 92 sleeved on the outer wall of the connecting sleeve 81, a sealing ring 91 arranged on the side of the limiting plate 92 facing the nozzle, and a sealing groove 10 is opened on the end surface of the oil nozzle 7 facing the sealing ring 91. The sealing groove 10 corresponds to the sealing ring 91. During the process of inserting the connecting sleeve 81 into the oil nozzle 7, one end of the sealing ring 91 abuts against the bottom of the sealing groove 10, and the other end is abutted by the limiting plate 92, thereby squeezing the sealing ring 91 so that the sealing ring 91 is compressed and deformed along the surface of the limiting plate 92, sealing the connection between the oil nozzle 7 and the connecting sleeve 81, so as to achieve the sealing effect of the sealing part 9.

[0060] Reference Figure 2 and Figure 3 In some embodiments, in order to further achieve the sealing effect of the sealing portion 9, limiting blocks 93 are slidably provided on both sides of the limiting plate 92. The limiting blocks 93 are suitable for sliding radially along the limiting plate 92. Two limiting grooves 11 are opened in the sealing groove 10. The limiting grooves 11 correspond to the limiting blocks 93. When the oil nozzle 7 squeezes the sealing ring 91, the sealing ring 91 is compressed and deformed outward along the sealing groove 10. After the limiting blocks 93 are inserted into the limiting grooves 11, the limiting blocks 93 prevent the sealing ring 91 from continuing to deform outward. It should be noted that the limit groove 11 is inclined toward the axial direction of the oil nozzle 7, that is, the bottom of the limit groove 11 is inclined, and the groove depth close to the axis of the sealing ring 91 is deeper, and the contact surface between the limit block 93 and the bottom of the limit groove 11 is also inclined, and the contact surface is in contact with the bottom of the groove, so that after the limit block 93 is inserted into the limit groove 11, the limit block 93 slides inward along the inclined surface of the limit groove 11, further squeezing the sealing ring 91, so that the sealing ring 91 fills the gap between the oil nozzle 7 and the joint 6, achieving a better sealing effect.

[0061] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A device for quickly detecting the spray angle of a nozzle space, characterized in that: include: A connector (6) and a nozzle (7) are provided separately; A connecting portion (8) mounted on the assembly end of the connector (6); The connecting portion (8) comprises: a connecting sleeve (81) and a sealing portion (9) sleeved on the outer wall of the connecting sleeve (81); The joint (6) is mounted to the oil inlet end of the oil nozzle (7) through the connecting sleeve (81); Furthermore, when the joint (6) is inserted into the oil nozzle (7) along the connecting sleeve (81), the oil nozzle (7) squeezes the sealing portion (9) so that the sealing portion (9) expands to fill the gap between the oil nozzle (7) and the joint (6).

2. The device according to claim 1, characterized in that The outer wall of the connecting sleeve (81) is provided with a plurality of grooves (82) at equal intervals; A limiting ball (83) is provided inside the groove (82), and the limiting ball (83) is elastically provided inside the groove (82).

3. The device according to claim 1, wherein: The device further comprises an acrylic cover (1), a pressing plate (2) is provided at the bottom end of the interior of the acrylic cover (1), and a sticker for testing an oil nozzle (7) is provided on the inner wall of the acrylic cover (1); The oil nozzle (7) is located inside the acrylic cover (1) and is mounted on the pressure plate (2); The sticker is suitable for detecting the landing point of the oil beam sprayed from the oil nozzle (7) to determine the oil injection angle and position of the oil nozzle (7).

4. The device according to claim 3, characterized in that A bottom plate (3) is installed at the bottom end of the acrylic cover (1); The joint (6) is mounted on the base plate (3) and corresponds to the oil nozzle (7).

5. The device according to claim 1, wherein: The oil inlet end of the joint (6) is connected to the oil pump (5), and the oil inlet end of the oil pump (5) is installed with an oil tank (4).

6. The device according to claim 1, wherein: The sealing portion (9) comprises: a limiting plate (92) sleeved on the outer wall of the connecting sleeve (81), and a sealing ring (91) provided on the side of the limiting plate (92) facing the nozzle; Limiting blocks (93) are slidably provided on both sides of the limiting plate (92); During the process of inserting the connecting sleeve (81) into the oil nozzle (7), the sealing ring (91) abuts against the oil inlet end of the oil nozzle (7), and the oil nozzle (7) squeezes the sealing ring (91) so that the sealing ring (91) is compressed and deformed along the surface of the limiting plate (92).

7. The device according to claim 6, characterized in that The oil nozzle (7) has a sealing groove (10) on its end surface facing the sealing ring (91), and the sealing groove (10) corresponds to the sealing ring (91); Two limiting grooves (11) are provided in the sealing groove (10), and the limiting grooves (11) correspond to the limiting blocks (93); Furthermore, when the oil nozzle (7) squeezes the sealing ring (91), the sealing ring (91) is compressed and deformed outward along the sealing groove (10), and after the limiting block (93) is inserted into the limiting groove (11), the limiting block (93) prevents the sealing ring (91) from continuing to deform outward.

8. The device according to claim 7, characterized in that The limiting groove (11) is opened obliquely toward the axis direction of the oil nozzle (7); After the limiting block (93) is inserted into the limiting groove (11), the limiting block (93) slides inward along the inclined surface of the limiting groove (11) so that the sealing ring (91) fills the gap between the oil nozzle (7) and the joint (6).

9. The device according to claim 8, characterized in that The inner wall of the oil nozzle (7) is provided with a plurality of mounting grooves (12) at equal intervals; the mounting grooves (12) correspond to the limiting balls (83).