Pressing device for oil injector of diesel engine

Abstract

The utility model discloses a diesel injector pressing device which comprises an injector body and a transverse fastening frame installed on the lower half portion of the outer side of the injector body, a longitudinal fastening frame and an auxiliary fastening frame are arranged below the transverse fastening frame, and the auxiliary fastening frame is connected with the longitudinal fastening frame in an inserted mode. The upper end and the lower end of the longitudinal fastening frame and the upper end and the lower end of the fastening auxiliary frame are located at the same horizontal position, and the fastening position of the longitudinal fastening frame, the fastening position of the fastening auxiliary frame and the fastening position of the transverse fastening frame are in a cross shape. The side edges of the transverse fastening frame, the longitudinal fastening frame and the fastening auxiliary frame and the middle of the oil sprayer body are each of a triangular structure. According to the utility model, under the combination of limiting the two ends of the transverse fastening frame and the joint of the longitudinal fastening frame and the fastening auxiliary frame at the same time, a cross-shaped limiting effect is formed on the fuel injector body, and the fuel injector body is fixed from the transverse end and the longitudinal end.

Description

Technical Field

[0001] This utility model relates to the field of fuel injector technology, and in particular to a diesel engine fuel injector clamping device. Background Technology

[0002] Fuel injectors are precision devices with very high machining accuracy, requiring a wide dynamic flow range, strong anti-clogging and anti-contamination capabilities, and good atomization performance.

[0003] Diesel engine injectors are mainly used to control the amount of fuel injected inside. However, when existing devices are installed, the clamping method is basically fixed from one direction. Since the fuel injection angle inside is multi-angle, the device will be subjected to impacts from multiple angles. Due to the single clamping method, it is impossible to buffer the impact force from multiple angles, thus affecting the stability of the device during use.

[0004] Therefore, we provide a diesel engine injector clamping device. Utility Model Content

[0005] The purpose of this utility model is to address the aforementioned technical problems by providing a diesel engine injector clamping device that achieves multi-angle clamping and support.

[0006] The device includes an injector body and a transverse fastening bracket installed on the lower half of the outer side of the injector body. A longitudinal fastening bracket and a fastening auxiliary bracket are provided below the transverse fastening bracket. The fastening auxiliary bracket is inserted into the longitudinal fastening bracket, and the upper and lower ends of the longitudinal fastening bracket and the fastening auxiliary bracket are located at the same horizontal position. The fastening positions of the longitudinal fastening bracket, the fastening auxiliary bracket and the transverse fastening bracket form a cross shape. The sides of the transverse fastening bracket, the longitudinal fastening bracket and the fastening auxiliary bracket and the middle part of the injector body all form a triangular structure.

[0007] Preferably, the transverse fastening bracket has auxiliary grooves at both ends of the fastening points, and fastening holes are provided through the upper and lower ends of the transverse fastening bracket, with the fastening holes extending into the auxiliary grooves.

[0008] Preferably, the longitudinal fastening bracket and the fastening auxiliary bracket are provided with fastening holes at both ends, and the fastening holes on the upper and lower sides are connected internally.

[0009] Preferably, positioning posts are installed on the upper surfaces of both the longitudinal fastening frame and the fastening auxiliary frame. An upper positioning groove and a lower positioning groove are provided on the outer side of the positioning post. The positioning post is inserted into the transverse fastening frame through the upper positioning groove and the lower positioning groove.

[0010] Preferably, the lower surface of the inner wall of the upper positioning groove is in contact with the upper surface of the inner wall of the auxiliary groove, the upper surface of the inner wall of the upper positioning groove is in contact with the upper surface of the transverse fastening frame, and the upper surface of the inner wall of the lower positioning groove is in contact with the lower surface of the inner wall of the auxiliary groove.

[0011] Preferably, the positioning post has fastening holes through its upper and lower ends, and the fastening holes on the positioning post are connected to the fastening holes on the transverse fastening bracket.

[0012] Preferably, fastening connecting plates are installed at both adjacent ends of the longitudinal fastening frame and the fastening auxiliary frame, and the fastening connecting plates on both sides are staggered. A fastening positioning groove is provided below the fastening connecting plate on one side of the longitudinal fastening frame, and the fastening connecting plate above the fastening auxiliary frame is provided with the fastening positioning groove, and the fastening connecting plate is inserted into the fastening positioning groove.

[0013] Compared with the prior art, the present invention provides a diesel engine injector clamping device, which has the following advantages:

[0014] This utility model first inserts and fixes the longitudinal fastening frame and the fastening auxiliary frame to both sides of the transverse fastening frame, and at the same time, the longitudinal fastening frame and the fastening positioning groove are inserted and limited to each other. With the combination of limiting both ends of the transverse fastening frame and the junction of the longitudinal fastening frame and the fastening auxiliary frame, a cross-shaped limiting effect is formed on the injector body.

[0015] This utility model, with the outer triangle structure of the transverse fastening frame, the longitudinal fastening frame, and the fastening auxiliary frame, based on the stability of the triangle, enables the force on the end of the pressing component to be transmitted to one side while the force on the side side is transmitted to the end, improving the uniformity of the force on the device, thereby improving its uniform stability when under pressure.

[0016] This invention ensures the precise connection position of the positioning post and the transverse fastening frame through the positioning and insertion of the upper and lower positioning grooves, while also ensuring the precise connection position of the fastening holes on the transverse fastening frame, the longitudinal fastening frame, and the positioning post.

[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of a diesel engine injector clamping device proposed in this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of the lower half of a diesel engine injector clamping device proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the positioning column structure of a diesel engine injector clamping device proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the connection between the transverse and longitudinal fastening brackets of a diesel engine injector clamping device proposed in this utility model.

[0022] In the diagram: 1. Injector body; 2. Horizontal fastening bracket; 3. Longitudinal fastening bracket; 301. Fastening auxiliary bracket; 302. Fastening connecting plate; 303. Fastening positioning groove; 4. Positioning post; 401. Upper positioning groove; 402. Lower positioning groove; 5. Auxiliary groove; 6. Fastening hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Example 1: A diesel engine injector clamping device, such as Figures 1-4 As shown, it includes an injector body 1 and a transverse fastening bracket 2 installed on the lower half of the outer side of the injector body 1. A longitudinal fastening bracket 3 and a fastening auxiliary bracket 301 are provided below the transverse fastening bracket 2. The fastening auxiliary bracket 301 is inserted into the longitudinal fastening bracket 3, and the upper and lower ends of the longitudinal fastening bracket 3 and the fastening auxiliary bracket 301 are at the same horizontal position. The fastening positions of the longitudinal fastening bracket 3 and the fastening auxiliary bracket 301 and the fastening position of the transverse fastening bracket 2 form a cross shape. The sides of the transverse fastening bracket 2, the longitudinal fastening bracket 3, and the fastening auxiliary bracket 301 and the middle part of the injector body 1 all form a triangular structure.

[0026] When installing and tightening the device, first insert and fix the longitudinal fastening frame 3 and the fastening auxiliary frame 301 to both sides of the transverse fastening frame 2, and simultaneously make the longitudinal fastening frame 3 and the fastening positioning groove 303 mutually insert and limit each other. After the insertion is accurate, first tighten and limit both ends of the transverse fastening frame 2, so that both ends of the longitudinal fastening frame 3 and the fastening auxiliary frame 301 are simultaneously limited. Then tighten and limit the junction of the longitudinal fastening frame 3 and the fastening auxiliary frame 301. Finally, tighten and limit the junction of both ends of the transverse fastening frame 2 and the longitudinal fastening frame 3 and the fastening auxiliary frame 301. With the combination of simultaneous limiting at the junction of the auxiliary frame 301, a cross-shaped limiting effect is formed on the injector body 1, fixing the injector body 1 from both the horizontal and vertical ends. Through the construction of the outer triangle of the horizontal fastening frame 2, the vertical fastening frame 3, and the fastening auxiliary frame 301, based on the stability of the triangle, the force on the end of the pressing component can be transmitted to one side, while the force on the side can be transmitted to the end, improving the uniformity of the force on the device, thereby improving its uniform stability when under pressure.

[0027] like Figures 1-4 As shown, auxiliary grooves 5 are provided at both ends of the horizontal fastening bracket 2, and fastening holes 6 are provided through the upper and lower ends of the horizontal fastening bracket 2, and the fastening holes 6 extend into the auxiliary grooves 5.

[0028] Both ends of the longitudinal fastening bracket 3 and the fastening auxiliary bracket 301 are provided with fastening holes 6, and the fastening holes 6 on the upper and lower sides are connected internally.

[0029] Based on the connecting support of the fastening holes 6 located at the upper and lower positions, the stability and reliability of the connection between the longitudinal fastening frame 3, the fastening auxiliary frame 301, and the fastening holes 6 during use are ensured, while improving their accuracy in actual use.

[0030] like Figures 1-4 As shown, positioning posts 4 are installed on the upper surfaces of the longitudinal fastening frame 3 and the fastening auxiliary frame 301. The outer side of the positioning post 4 is provided with an upper positioning groove 401 and a lower positioning groove 402. The positioning post 4 is inserted into the transverse fastening frame 2 through the upper positioning groove 401 and the lower positioning groove 402.

[0031] The lower surface of the inner wall of the upper positioning groove 401 is in contact with the upper surface of the inner wall of the auxiliary groove 5, the upper surface of the inner wall of the upper positioning groove 401 is in contact with the upper surface of the transverse fastening bracket 2, and the upper surface of the inner wall of the lower positioning groove 402 is in contact with the lower surface of the inner wall of the auxiliary groove 5.

[0032] The positioning post 4 has fastening holes 6 through its upper and lower ends, and the fastening holes 6 on the positioning post 4 are connected to the fastening holes 6 on the transverse fastening bracket 2.

[0033] When the longitudinal fastening frame 3, the fastening auxiliary frame 301, and the transverse fastening frame 2 are inserted and positioned, the positioning post 4 drives the upper positioning groove 401 and the lower positioning groove 402 to simultaneously insert with the transverse fastening frame 2 and the auxiliary groove 5. Under the positioning insertion of the upper positioning groove 401 and the lower positioning groove 402, the connection position of the positioning post 4 and the transverse fastening frame 2 is ensured to be accurate. At the same time, the connection position of the fastening holes 6 on the transverse fastening frame 2, the longitudinal fastening frame 3, and the positioning post 4 is ensured to be accurate. Under the connection of the positioning post 4, the connection position of the transverse fastening frame 2, the longitudinal fastening frame 3, and the fastening auxiliary frame 301 is ensured to be tight.

[0034] like Figures 1-4 As shown, fastening connecting plates 302 are installed on both adjacent ends of the longitudinal fastening frame 3 and the fastening auxiliary frame 301. The fastening connecting plates 302 on both sides are staggered. A fastening positioning groove 303 is provided below the fastening connecting plate 302 on one side of the longitudinal fastening frame 3. A fastening positioning groove 303 is provided on the fastening connecting plate 302 above the fastening auxiliary frame 301. The fastening connecting plate 302 and the fastening positioning groove 303 are inserted into each other.

[0035] With the staggered distribution of the fastening connecting discs 302 on both sides of the longitudinal fastening frame 3 and the fastening auxiliary frame 301, and the insertion and positioning of the fastening positioning groove 303, the accuracy of the position of the longitudinal fastening frame 3 and the fastening auxiliary frame 301 when inserted is ensured, and the stability of their position when pressed is guaranteed.

[0036] Working principle: First, the longitudinal fastening frame 3 and the fastening auxiliary frame 301 are inserted and fixed to both sides of the transverse fastening frame 2. At the same time, the longitudinal fastening frame 3 and the fastening positioning groove 303 are inserted and limited to each other. After the insertion is accurate, the two ends of the transverse fastening frame 2 are fastened and limited, so that the two ends of the longitudinal fastening frame 3 and the fastening auxiliary frame 301 are simultaneously limited. Then, the junction of the longitudinal fastening frame 3 and the fastening auxiliary frame 301 is fastened and limited. With the combination of simultaneous limiting at both ends of the transverse fastening frame 2 and at the junction of the longitudinal fastening frame 3 and the fastening auxiliary frame 301, a cross-shaped limiting effect is formed on the injector body 1. The injector body 1 is fixed from both the transverse and longitudinal ends. Through the construction of the outer triangle of the transverse fastening frame 2, the longitudinal fastening frame 3, and the fastening auxiliary frame 301, based on the stability of the triangle, the force on the end of the pressing component can be transmitted to one side, while the force on the side can be transmitted to the end, improving the uniformity of the force on the device.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A diesel engine injector clamping device, comprising an injector body (1) and a transverse fastening bracket (2) installed on the lower half of the outer side of the injector body (1), characterized in that, Below the transverse fastening bracket (2) are provided a longitudinal fastening bracket (3) and a fastening auxiliary bracket (301). The fastening auxiliary bracket (301) is inserted into the longitudinal fastening bracket (3), and the upper and lower ends of the longitudinal fastening bracket (3) and the fastening auxiliary bracket (301) are at the same horizontal position. The fastening positions of the longitudinal fastening bracket (3) and the fastening auxiliary bracket (301) are in a cross shape with the fastening position of the transverse fastening bracket (2). The sides of the transverse fastening bracket (2), the longitudinal fastening bracket (3), and the fastening auxiliary bracket (301) are all in a triangular structure with the middle part of the injector body (1).

2. The diesel engine injector clamping device according to claim 1, characterized in that, The transverse fastening bracket (2) has auxiliary grooves (5) at both ends of the fastening point. The transverse fastening bracket (2) has fastening holes (6) through the upper and lower ends, and the fastening holes (6) penetrate into the auxiliary grooves (5).

3. The diesel engine injector clamping device according to claim 2, characterized in that, The longitudinal fastening bracket (3) and the fastening auxiliary bracket (301) are both provided with fastening holes (6) at their opposite ends, and the fastening holes (6) on the upper and lower sides are connected internally.

4. The diesel engine injector clamping device according to claim 2, characterized in that, Positioning posts (4) are installed on the upper surfaces of the longitudinal fastening frame (3) and the fastening auxiliary frame (301). The positioning posts (4) have an upper positioning groove (401) and a lower positioning groove (402) on their outer sides. The positioning posts (4) are inserted into the transverse fastening frame (2) through the upper positioning groove (401) and the lower positioning groove (402).

5. A diesel engine injector clamping device according to claim 4, characterized in that, The lower surface of the inner wall of the upper positioning groove (401) is in contact with the upper surface of the inner wall of the auxiliary groove (5), the upper surface of the inner wall of the upper positioning groove (401) is in contact with the upper surface of the transverse fastening frame (2), and the upper surface of the inner wall of the lower positioning groove (402) is in contact with the lower surface of the inner wall of the auxiliary groove (5).

6. A diesel engine injector clamping device according to claim 4, characterized in that, The positioning post (4) has fastening holes (6) through its upper and lower ends. The fastening holes (6) on the positioning post (4) are connected to the fastening holes (6) on the transverse fastening frame (2).

7. A diesel engine injector clamping device according to claim 1, characterized in that, The longitudinal fastening frame (3) and the fastening auxiliary frame (301) are both equipped with fastening connecting plates (302) at their adjacent ends. The fastening connecting plates (302) on both sides are staggered. A fastening positioning groove (303) is provided below the fastening connecting plate (302) on one side of the longitudinal fastening frame (3). The fastening connecting plate (302) above the fastening auxiliary frame (301) is provided with the fastening positioning groove (303). The fastening connecting plate (302) is inserted into the fastening positioning groove (303).

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