A special tool for removing and installing retaining ring gaskets for engine electronic fuel injection connectors

Abstract

This utility model relates to a special tool for disassembling and assembling engine electronic fuel injection connector retainer gaskets. It includes a tool body, flared arms, and a drive mechanism. The tool body is shaped and structured for easy hand gripping. The flared arms and drive mechanism can be located on the surface of the tool body or inside it. Two flared arms are symmetrically and rotatably mounted on the tool body. The first end of each flared arm is a mating end for engaging with a snap-fit ​​hole, extending beyond the edge of the tool body. The drive mechanism is reciprocally mounted on the tool body. The drive end of the drive mechanism is in transmission engagement with the second ends of the two flared arms, driving the mating ends of the two flared arms away from each other. This special tool for disassembling and assembling engine electronic fuel injection connector retainer gaskets facilitates the disassembly and assembly of retainer gaskets, is simple to operate, and allows workers to quickly repair or inspect electronic fuel injection connectors, thus improving maintenance efficiency.

Description

Technical Field

[0001] This utility model relates to the field of maintenance tool technology, and in particular to a special tool for disassembling and assembling engine electronic fuel injection connector retaining ring gaskets. Background Technology

[0002] The engine electronic fuel injection connector is a core component of the engine's fuel system and plays a crucial role in engine operation. Improper disassembly of the connector can damage the connector itself or the clips at its connection to the engine. In such cases, the connector must be disassembled for inspection. Disassembling the connector requires first removing the retaining ring washer. Currently, there is a lack of specialized tools for removing retaining ring washers; typically, technicians use two screwdrivers, which is inconvenient and reduces repair efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a special tool for disassembling and assembling the retaining ring gasket of the engine electronic fuel injection connector, so as to facilitate the disassembly and assembly of the retaining ring gasket, simplify operation, and improve maintenance efficiency.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A special tool for removing and installing retaining ring gaskets on engine electronic fuel injection connectors, comprising:

[0006] Tool body;

[0007] Two flared arms are symmetrically and rotatably disposed on the tool body. The first end of each flared arm is a mating end for engaging with a hole in a buckle, and the mating end extends beyond the edge of the tool body.

[0008] A drive mechanism is reciprocally mounted on the tool body. The drive end of the drive mechanism is in transmission engagement with the second ends of the two flaring arms to drive the engaging ends of the two flaring arms away from each other.

[0009] In one embodiment of this application, the tool body is provided with an inner cavity, the second end of the flaring arm and the driving end of the driving mechanism are disposed in the inner cavity, and the first end of the flaring arm and the operating end of the driving mechanism extend out of the tool body.

[0010] In one embodiment of this application, the flared arm includes a flared portion, a connecting portion, and a base portion. The flared portion is connected to a first end of the base portion via the connecting portion. The base portion is rotatably disposed on the tool body. The connecting portion is an arc-shaped structure with the rotation axis of the base portion as a circle. The driving mechanism is in transmission cooperation with a second end of the base portion. The end of the flared portion away from the connecting portion is the cooperation end.

[0011] In one embodiment of this application, the flared portion is detachably connected to the connecting portion, and / or the connecting portion is detachably connected to the base portion.

[0012] In one embodiment of this application, an elastic reset member is provided between the base portion and the tool body. The elastic reset member is used to apply a force to the base portion to bring the first ends of the two flared arms closer together.

[0013] In one embodiment of this application, the driving mechanism includes a pressing plate, an intermediate connecting member, and a driving plate. The pressing plate is connected to the driving plate through the intermediate connecting member. The pressing plate is disposed outside the tool body. The driving plate is in contact with the second end of the base portion of the two flared arms.

[0014] In one embodiment of this application, the intermediate connector is an elastic connector.

[0015] In one embodiment of this application, the elastic connector is a compression spring, and the two ends of the compression spring are respectively connected to the pressing plate and the driving plate.

[0016] In one embodiment of this application, the elastic connector further includes a telescopic guide rod, the compression spring is disposed inside the guide rod, and the two ends of the guide rod are respectively connected to the pressing plate and the driving plate.

[0017] In one embodiment of this application, the tool body is provided with a guide hole that slides with the guide rod. One of the mating surfaces of the guide rod and the guide hole is provided with an anti-rotation limiting structure, and the other is provided with an anti-rotation fitting structure. The anti-rotation limiting structure and the anti-rotation fitting structure cooperate to prevent the guide rod from rotating relative to the tool body.

[0018] As can be seen from the above technical solution, this utility model discloses a special tool for disassembling and assembling engine electronic fuel injection connector retainer gaskets. The special tool for disassembling and assembling engine electronic fuel injection connector retainer gaskets includes a tool body, flared arms, and a drive mechanism. The tool body is shaped and structured for easy hand gripping by the user. The flared arms and the drive mechanism can be disposed on the surface of the tool body or inside the tool body. The two flared arms are symmetrically and rotatably disposed on the tool body. The first end of the flared arm is a mating end for engaging with the hole of the retainer. The mating end extends beyond the edge of the tool body. The drive mechanism is reciprocally disposed on the tool body. The drive end of the drive mechanism is driven to engage with the second ends of the two flared arms to drive the mating ends of the two flared arms away from each other.

[0019] In application, the distance between the first ends of the two flared arms is adjusted by the drive mechanism so that the first ends of the two flared arms can be inserted into the two holes at both ends of the retaining ring washer. Then, the drive mechanism is moved to increase the distance between the first ends of the two flared arms, causing the two ends of the retaining ring washer to expand outward, thereby removing the retaining ring washer. The retaining ring washer can also be installed with the help of a special tool for removing and installing retaining rings on engine electronic fuel injection connectors. The operation steps are similar and will not be described in detail.

[0020] As can be seen, the above-mentioned special tool for removing and installing the retaining ring gasket of the engine electronic fuel injection connector facilitates the removal and installation of the retaining ring gasket. It is easy to operate and allows staff to quickly repair or inspect the electronic fuel injection connector, which helps to improve maintenance efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the special tool for disassembling and assembling the retaining ring gasket of the engine electronic fuel injection connector provided in the embodiment of this utility model.

[0023] In the picture:

[0024] 100 represents the main body of the tool; 110 represents the inner cavity;

[0025] 200 is the flared arm; 210 is the flared section; 220 is the connecting section; 230 is the base section;

[0026] 300 is the drive mechanism; 310 is the pressing plate; 320 is the intermediate connecting piece; 330 is the drive plate;

[0027] 400 is the pivot point. Detailed Implementation

[0028] The core of this utility model is to provide a special tool for disassembling and assembling the retaining ring gasket of the engine electronic fuel injection connector. The structural design of this special tool makes it easy to disassemble and assemble the retaining ring gasket, which is convenient to operate and improves maintenance efficiency.

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1 , Figure 1 A schematic diagram of the structure of the special tool for disassembling and assembling the retaining ring gasket of the engine electronic fuel injection connector provided in the embodiment of this utility model.

[0031] This utility model discloses a special tool for disassembling and assembling engine electronic fuel injection connector retainer gaskets. The special tool for disassembling and assembling engine electronic fuel injection connector retainer gaskets includes a tool body 100, a flared arm 200, and a drive mechanism 300.

[0032] The tool body 100 is shaped and structured for easy hand gripping by the user. The flared arm 200 and the drive mechanism 300 can be disposed on the surface of the tool body 100 or inside the tool body 100. The two flared arms 200 are symmetrically and rotatably disposed on the tool body 100. The first end of the flared arm 200 is a mating end for engaging with the hole of the buckle. The mating end extends beyond the edge of the tool body 100 to avoid interference between the tool body 100 and the mating end of the flared arm 200.

[0033] The drive mechanism 300 is reciprocally mounted on the tool body 100. The drive end of the drive mechanism 300 is driven to engage with the second ends of the two flared arms 200 to drive the engaging ends of the two flared arms 200 away from each other. The drive mechanism 300 and the second ends of the two flared arms 200 can be driven to engage in various ways, such as using a gear and rack mechanism, a cam and linkage mechanism, etc.

[0034] In application, the distance between the first ends of the two flared arms 200 is adjusted by the drive mechanism 300 so that the first ends of the two flared arms 200 can be inserted into the two holes at both ends of the retaining ring washer. Then, the drive mechanism 300 is moved to increase the distance between the first ends of the two flared arms 200, causing the two ends of the retaining ring washer to expand outward, thereby removing the retaining ring washer. The installation of the retaining ring washer can also be done with the help of a special tool for removing and installing retaining rings on the engine electronic fuel injection connector. The operation steps are similar and will not be described in detail.

[0035] Compared with the prior art, the special tool for disassembling and assembling the retaining ring gasket of the engine electronic injection connector provided in this embodiment of the utility model facilitates the disassembly and assembly of the retaining ring gasket, is simple to operate, and makes it convenient for staff to quickly repair or inspect the electronic injection connector, thus helping to improve maintenance efficiency.

[0036] To achieve a cleaner appearance for the special tool for removing and installing the engine electronic fuel injection connector retainer gasket, and to protect the transmission components between the flared arm 200 and the drive mechanism 300, in one embodiment of this application, such as... Figure 1As shown, the tool body 100 is provided with an inner cavity 110. The second end of the flaring arm 200 and the driving end of the driving mechanism 300 are located in the inner cavity 110. The first end of the flaring arm 200 and the operating end of the driving mechanism 300 extend out of the tool body 100 to facilitate operation by maintenance personnel and cooperation between the flaring arm 200 and the retaining ring washer.

[0037] like Figure 1 As shown, in this embodiment, the flared arm 200 includes a flared portion 210, a connecting portion 220, and a base portion 230. The flared portion 210 can be strip-shaped or sheet-shaped. The flared portion 210 can adopt a uniform cross-section structure, that is, the cross-sectional shape and cross-sectional area of ​​the flared portion 210 are the same from one end to the other. The flared portion 210 can also adopt a variable cross-section structure, where the cross-sectional area of ​​the flared portion 210 gradually decreases from the end connected to the connecting portion 220 to facilitate insertion into the hole on the retaining ring washer. Alternatively, the cross-sectional shape of the flared portion 210 at the connected end may be different from that at the other end.

[0038] The flared portion 210 is connected to the first end of the base portion 230 via the connecting portion 220. The base portion 230 is rotatably mounted on the tool body 100 via the rotating shaft 400. The connecting portion 220 is an arc-shaped structure with the rotation axis of the base portion 230 as a circle. This way, when the flared arm 200 rotates, it is not easy to interfere with the tool body 100, ensuring that the flared arm 200 can rotate freely within a predetermined range. The drive mechanism 300 is in transmission cooperation with the second end of the base portion 230. The end of the flared portion 210 away from the connecting portion 220 is the mating end.

[0039] To further optimize the above technical solution, the flared part 210 and the connecting part 220 are detachably connected, and / or the connecting part 220 and the base part 230 are detachably connected. This allows for the replacement of the appropriate flared part 210 according to the specifications of the retaining ring gasket. Only a few specifications of flared parts 210 need to be prepared, eliminating the need to prepare multiple special tools for disassembling and assembling engine electronic injection connector retaining ring gaskets, thus reducing costs.

[0040] Specifically, such as Figure 1 As shown, the connecting part 220 and the base part 230 are connected by bolts. The base part 230 is provided with a through hole, and the connecting part 220 is provided with a threaded hole. The bolt passes through the through hole and engages with the threaded hole to achieve a detachable connection between the connecting part 220 and the base part 230.

[0041] Preferably, an elastic reset member is provided between the base portion 230 and the tool body 100. The elastic reset member is used to apply a force to the base portion 230 to bring the first ends of the two flared arms 200 together. In this way, when the drive mechanism 300 is reset, the flared arms 200 can be reset under the action of the elastic reset member for subsequent use.

[0042] Specifically, in Figure 1 In the embodiment shown, the elastic reset element is a torsion spring. The helical body of the torsion spring is sleeved on the rotating shaft 400. One leg of the torsion spring is connected to the base part 230, and the other leg is connected to the tool body 100.

[0043] like Figure 1 As shown, the drive mechanism 300 includes a pressing plate 310, an intermediate connector 320, and a drive plate 330. The pressing plate 310 is connected to the drive plate 330 through the intermediate connector 320. The pressing plate 310 is disposed outside the tool body 100. The drive plate 330 contacts and engages with the second ends of the base portions 230 of the two flared arms 200. In use, the maintenance personnel apply a force to the pressing plate 310 in the direction of the drive plate 330. The force is transmitted to the drive plate 330 through the intermediate connector 320. The drive plate 330 pushes the second ends of the base portions 230 of the two flared arms 200 so that the engaging ends of the flared portions 210 of the two flared arms 200 move away from each other.

[0044] To prevent the flared portions 210 of the two flared arms 200 from moving away from each other too quickly or expanding too much, which could lead to excessive deformation of the retaining ring gasket and render it unusable, in one embodiment of this application, the intermediate connecting member 320 is an elastic connecting member. Thus, as maintenance personnel apply pressure to the pressing plate 310, the driving mechanism 300 moves as a whole while the intermediate connecting member 320 is compressed. This means the movement and speed of the driving plate 330 are less than the movement and speed of the pressing plate 310, thereby achieving a gradual opening of the two flared arms 200, which is easier to control and avoids the problem of excessive deformation of the retaining ring gasket, rendering it unusable.

[0045] Specifically, such as Figure 1 As shown, in one specific embodiment of this application, the elastic connector is a compression spring, and the two ends of the compression spring are respectively connected to the pressing plate 310 and the driving plate 330.

[0046] To ensure the stability of the compression spring during deformation, the elastic connector also includes a telescopic guide rod. The compression spring is housed within the guide rod, and both ends of the guide rod are connected to the pressing plate 310 and the driving plate 330, respectively. The guide rod consists of at least two guide tubes, which are nested together and can move relative to each other along their own axial direction to achieve telescopic movement.

[0047] To further optimize the above technical solution, in one embodiment of this application, the tool body 100 is provided with a guide hole that slides with the guide rod. One of the mating surfaces of the guide rod and the guide hole is provided with an anti-rotation limiting structure, and the other is provided with an anti-rotation mating structure. The anti-rotation limiting structure and the anti-rotation mating structure cooperate to prevent the guide rod from rotating relative to the tool body 100, thereby increasing the stability of the drive mechanism 300 when the maintenance personnel operate it.

[0048] As indicated in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" are not specifically singular and may include the plural. Generally, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0049] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0050] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0051] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A special tool for disassembling and assembling the retaining ring gasket of an engine electronic fuel injection connector, characterized in that, include: Tool body (100); Two flared arms (200) are symmetrically and rotatably disposed on the tool body (100). The first end of each flared arm (200) is a mating end for engaging with a hole in a buckle, and the mating end extends beyond the edge of the tool body (100). A drive mechanism (300) is reciprocally mounted on the tool body (100). The drive end of the drive mechanism (300) is in transmission engagement with the second ends of the two flared arms (200) to drive the engagement ends of the two flared arms (200) away from each other.

2. The special tool for disassembling and assembling the engine electronic fuel injection connector retaining ring gasket according to claim 1, characterized in that, The tool body (100) is provided with an inner cavity (110), the second end of the flaring arm (200) and the driving end of the driving mechanism (300) are disposed in the inner cavity (110), and the first end of the flaring arm (200) and the operating end of the driving mechanism (300) extend out of the tool body (100).

3. The special tool for disassembling and assembling the engine electronic fuel injection connector retaining ring gasket according to claim 2, characterized in that, The flared arm (200) includes a flared portion (210), a connecting portion (220), and a base portion (230). The flared portion (210) is connected to the first end of the base portion (230) through the connecting portion (220). The base portion (230) is rotatably disposed on the tool body (100). The connecting portion (220) is an arc-shaped structure with the rotation axis of the base portion (230) as a circle. The driving mechanism (300) is in transmission cooperation with the second end of the base portion (230). The end of the flared portion (210) away from the connecting portion (220) is the cooperation end.

4. The special tool for disassembling and assembling the engine electronic fuel injection connector retaining ring gasket according to claim 3, characterized in that, The flared portion (210) is detachably connected to the connecting portion (220), and / or the connecting portion (220) is detachably connected to the base portion (230).

5. The special tool for disassembling and assembling the engine electronic fuel injection connector retaining ring gasket according to claim 3, characterized in that, An elastic reset member is provided between the base portion (230) and the tool body (100), the elastic reset member being used to apply a force to the base portion (230) to bring the first ends of the two flared arms (200) closer together.

6. The special tool for disassembling and assembling engine electronic fuel injection connector retaining ring gaskets according to any one of claims 3-5, characterized in that, The drive mechanism (300) includes a pressing plate (310), an intermediate connector (320), and a drive plate (330). The pressing plate (310) is connected to the drive plate (330) through the intermediate connector (320). The pressing plate (310) is located outside the tool body (100). The drive plate (330) is in contact with the second end of the base portion (230) of the two flared arms (200).

7. The special tool for disassembling and assembling the engine electronic fuel injection connector retaining ring gasket according to claim 6, characterized in that, The intermediate connector (320) is an elastic connector.

8. The special tool for disassembling and assembling the engine electronic fuel injection connector retaining ring gasket according to claim 7, characterized in that, The elastic connector is a compression spring, and the two ends of the compression spring are respectively connected to the pressing plate (310) and the driving plate (330).

9. The special tool for disassembling and assembling the retaining ring gasket of the engine electronic fuel injection connector according to claim 8, characterized in that, The elastic connector also includes a telescopic guide rod, the compression spring is disposed inside the guide rod, and the two ends of the guide rod are respectively connected to the pressing plate (310) and the driving plate (330).

10. The special tool for disassembling and assembling the retaining ring gasket of the engine electronic fuel injection connector according to claim 9, characterized in that, The tool body (100) is provided with a guide hole that slides with the guide rod. One of the mating surfaces of the guide rod and the guide hole is provided with an anti-rotation limiting structure, and the other is provided with an anti-rotation fitting structure. The anti-rotation limiting structure and the anti-rotation fitting structure cooperate to prevent the guide rod from rotating relative to the tool body (100).

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