Foldable spark plug dismounting sleeve tool

Abstract

The utility model discloses a foldable spark plug dismounting sleeve tool, which relates to gas engine maintenance and comprises a sleeve rod, a connecting rod and a sleeve ring. One end of the sleeve rod is provided with a connector used for being connected with a wrench. The connecting rod is rotationally connected with the other end of the sleeve rod, a clamping cylinder sleeving the spark plug is arranged at the end, away from the sleeve rod, of the connecting rod, and a locking piece used for clamping the spark plug is arranged at the end, away from the connecting rod, of the clamping cylinder. The sleeve ring is arranged on the sleeve rod or the connecting rod in a sleeving mode and can move to the connecting position of the sleeve rod and the connecting rod so as to prevent the sleeve rod and the connecting rod from rotating relatively. By means of the arrangement, the length of the sparking plug dismounting sleeve tool can be greatly reduced, the requirement for the sparking plug dismounting space is lowered, the cost of an engine after-sales service machine is reduced, the after-sales maintenance difficulty is lowered, and the peripheral part layout space of a main engine plant is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of gas engine maintenance, in particular to a foldable spark plug disassembly and assembly sleeve tool. Background Art

[0002] The spark plugs equipped in existing gas engines require a socket tool to adjust the gap or replace new spark plugs. If the rocker cover at the top is removed before disassembly, the workload of after-sales maintenance is huge. The existing spark plug disassembly socket can penetrate into the location of the spark plug for removal without removing the rocker cover. However, the existing tool is long and is often blocked by peripheral engine parts in actual use, resulting in the spark plug being unable to be properly removed from the top rocker cover hole. The rocker cover must be removed before the operation can be performed, wasting a lot of manpower and time (such as Figure 1 shown).

[0003] Therefore, how to provide a foldable spark plug disassembly and assembly socket tool to reduce the height requirement during spark plug disassembly and assembly and provide engine supporting manufacturers with sufficient peripheral parts installation space is a technical problem that those skilled in the art currently need to solve. Utility Model Content

[0004] The utility model aims to provide a foldable spark plug disassembly and assembly sleeve tool, so as to reduce the height requirement during the spark plug disassembly and assembly process and provide engine supporting manufacturers with sufficient space for installing peripheral parts.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A foldable spark plug disassembly and assembly socket tool, comprising:

[0007] A sleeve rod, one end of which is provided with an interface for connecting with a wrench;

[0008] The connecting rod is rotatably connected to the other end of the sleeve rod. The end of the connecting rod away from the sleeve rod is provided with a cartridge sleeved around the outer periphery of the spark plug. The end of the cartridge away from the connecting rod is provided with a locking member for clamping the spark plug.

[0009] The sleeve ring is sleeved on the sleeve rod or the connecting rod and can be moved to the connection between the sleeve rod and the connecting rod to prevent the sleeve rod and the connecting rod from rotating relative to each other.

[0010] Preferably, a cylindrical connector is provided at the end of the connecting rod facing away from the cartridge, and two vertical ears are provided opposite to each other on the upper side of the connector, and the vertical ears are provided with through holes at the same height.

[0011] Preferably, a connecting protrusion is provided at the end of the sleeve rod facing away from the interface, and the connecting protrusion is passed through the two vertical ears via a pin.

[0012] Preferably, the collar is a cylindrical structure with a stepped hole provided inside. The collar comprises a first end and a second end. The inner diameter of the first end matches the outer diameter of the sleeve rod, and the inner diameter of the second end matches the outer diameter of the connector.

[0013] Preferably, the outer diameter of the sleeve rod is smaller than the outer diameter of the connector, and the inner diameter of the first end is smaller than the outer diameter of the connector, so as to axially limit the collar.

[0014] Preferably, the cartridge is a cylindrical structure, and a positioning groove is provided on the outer circumference of the end portion thereof away from the connecting rod, and the positioning groove is used for installing the locking member.

[0015] Preferably, the positioning groove includes an annular groove and two clamping grooves along the axis of the cartridge, the top end of the clamping groove abuts against the annular groove, and the clamping groove penetrates the cartridge wall.

[0016] Preferably, the locking member includes an annular portion clamped in the annular groove, and a clamping portion located in the clamping groove, and the clamping portion can abut against the spark plug in the cartridge to lock it.

[0017] Preferably, a protrusion for limiting axial movement of the collar is provided on the lower side of the connector.

[0018] Preferably, the connecting rod and the cartridge are both made of alloy tool steel, and both are an integrated structure.

[0019] Compared with the above-mentioned background technology, the present invention provides a foldable spark plug disassembly and assembly socket tool, comprising: a sleeve rod, a connecting rod and a sleeve ring; one end of the sleeve rod is provided with an interface for connecting to a wrench; the connecting rod is rotatably connected to the other end of the sleeve rod, and the end of the connecting rod away from the sleeve rod is provided with a cartridge sleeved on the outer periphery of the spark plug, and the end of the cartridge away from the connecting rod is provided with a locking piece for clamping the spark plug; the sleeve ring is sleeved on the sleeve rod or the connecting rod, and the sleeve ring can be moved to the connection between the sleeve rod and the connecting rod to prevent the sleeve rod and the connecting rod from rotating relative to each other.

[0020] Specifically, the sleeve rod and the connecting rod are rotatably connected. During the process of removing and installing the spark plug, the two can be locked by the sleeve ring. A wrench is used to act on the interface at the top of the sleeve rod to remove or install the spark plug to the appropriate torque. In the process of moving the spark plug with the cartridge, the locking member locks the hexagonal nut on the spark plug to prevent it from falling and causing damage during the movement. During the process of moving the spark plug with the cartridge, after the cartridge part moves out of the top of the rocker cover, the sleeve ring is moved upward, the sleeve rod part is folded, and the upward movement is continued to remove the spark plug.

[0021] Such a setting can greatly reduce the length of the spark plug disassembly and assembly socket tool, reduce the space requirement for spark plug disassembly and assembly, reduce the cost of engine after-sales service, reduce the difficulty of after-sales maintenance, and increase the peripheral parts layout space of the main engine manufacturer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the structure of a spark plug disassembly and assembly tool in the prior art;

[0024] Figure 2 An exploded view of the spark plug disassembly and assembly tool provided in an embodiment of the utility model;

[0025] Figure 3 A schematic diagram of the structure of a spark plug disassembly and assembly sleeve tool provided by an embodiment of the utility model;

[0026] Figure 4 A schematic diagram of the structure of the spark plug disassembly and assembly sleeve tool provided by an embodiment of the utility model during disassembly;

[0027] Figure 5 This is a schematic diagram of the structure of the spark plug disassembly and assembly tool provided by an embodiment of the utility model after disassembly.

[0028] in:

[0029] 01-spark plug, 02-rocker cover, 03-rocker chamber;

[0030] 100-rod, 110-interface, 120-connecting protrusion;

[0031] 200-connecting rod, 210-connecting head, 220-standing ear, 230-pin;

[0032] 300-cartridge, 310-positioning groove, 311-ring groove, 312-card slot;

[0033] 400-ring, 410-first end, 420-second end;

[0034] 500-locking piece, 510-annular portion, 520-clamping portion. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0037] In the description of the present invention, it should be understood that the terms "up", "down", "top", "bottom", "left" and "right" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations of the present invention.

[0038] The utility model aims to provide a foldable spark plug disassembly and assembly sleeve tool, so as to reduce the height requirement during the spark plug disassembly and assembly process and provide engine supporting manufacturers with sufficient space for installing peripheral parts.

[0039] To achieve the above objectives, the present invention provides the following technical solutions:

[0040] See also Figures 1 to 5 The present embodiment provides a foldable spark plug disassembly and assembly socket tool, comprising: a sleeve rod 100, a connecting rod 200 and a collar 400; the sleeve rod 100 is provided with an interface 110 for connecting to a wrench at one end; the connecting rod 200 is rotatably connected to the other end of the sleeve rod 100, and the end of the connecting rod 200 away from the sleeve rod 100 is provided with a cartridge 300 sleeved around the outer periphery of the spark plug 01, and the end of the cartridge 300 away from the connecting rod 200 is provided with a locking member 500 for clamping the spark plug 01; the collar 400 is sleeved on the sleeve rod 100 or the connecting rod 200, and can be moved to the connection between the sleeve rod 100 and the connecting rod 200 to prevent the sleeve rod 100 and the connecting rod 200 from rotating relative to each other.

[0041] In this embodiment, if Figure 2 and Figure 3As shown, the left end of the sleeve rod 100 is provided with an interface 110 for engaging with a wrench. The cross-sectional shape and size of the interface 110 can be adjusted according to actual conditions and are not specifically limited in this article; the right end of the sleeve rod 100 is connected to the upper end of the connecting rod 200, and the lower end of the connecting rod 200 is connected to a cartridge 300, wherein the axes of the cartridge 300 and the connecting rod 200 coincide, but a hole is provided at the lower end of the cartridge 300, which is used to be sleeved on the circumference of the spark plug 01 to transmit the force of the wrench to the spark plug 01; and the collar 400 is movably sleeved on the sleeve rod 100. When the sleeve disassembly tool is inserted into the rocker cover 02 and the rocker chamber 03, it will move to the hinge between the sleeve rod 100 and the connecting rod 200 to lock the two.

[0042] Specifically, the sleeve rod 100 and the connecting rod 200 are rotatably connected. During the process of removing and installing the spark plug 01, the two can be locked by the collar 400. A wrench is used to act on the interface 110 at the top of the sleeve rod 100. The force will pass through the sleeve rod 100, the connecting rod 200, and finally be transmitted to the cartridge 300, so that the spark plug 01 can be removed or installed to a suitable torque. In the process of the cartridge 300 carrying the spark plug 01 moving up and down, the locking member 500 locks the hexagonal nut on the spark plug 01 to prevent it from falling and causing damage during the movement. During the process of the cartridge 300 carrying the spark plug 01 moving, after the cartridge 300 is partially moved out of the top of the rocker cover 02, the collar 400 is moved upward, the sleeve rod 100 is folded, and the sleeve rod 100 is continued to move upward to remove the spark plug 01.

[0043] Such a setting can greatly reduce the length of the spark plug 01 disassembly and assembly socket tool, reduce the space requirement for spark plug 01 disassembly and assembly, reduce the engine after-sales service machine cost, reduce the difficulty of after-sales maintenance, and increase the peripheral parts layout space of the main engine manufacturer.

[0044] Preferably, a cylindrical connector 210 is provided at the end of the connecting rod 200 facing away from the cartridge 300 , and two vertical ears 220 are oppositely provided on the upper side of the connector 210 . The vertical ears 220 are provided with through holes at the same height.

[0045] Specifically, if Figure 2 and Figure 3 As shown, a connector 210 having an overall cylindrical structure is provided at the upper end of the connecting rod 200. Two vertical ears 220 are provided on the upper side of the connector 210 and at opposite ends of the same diameter of the cross section of the connector 210. The two vertical ears 220 have the same shape and size. In addition, through holes with the same diameter are provided at the same height position of the two vertical ears 220.

[0046] Furthermore, a connecting protrusion 120 is provided at the end of the sleeve rod 100 away from the interface 110 , and the connecting protrusion 120 is passed through the two vertical ears 220 via a pin shaft 230 .

[0047] In order to facilitate the rotational connection between the sleeve rod 100 and the connecting rod 200, a square connecting protrusion 120 is provided at the right end of the sleeve rod 100. The connecting protrusion 120 can be installed between the two vertical ears 220. A circular through hole is also provided in the middle of the connecting protrusion 120. When the foldable spark plug 01 is disassembling and assembling the socket tool, the connecting protrusion 120 is installed in the space between the two vertical ears 220, and the through hole on the connecting protrusion 120 is aligned with the through hole on the vertical ear 220, and then the pin 230 is passed through the three through holes. In this way, the sleeve rod 100 and the connecting rod 200 are hinged, and the two can rotate relative to each other.

[0048] It should be noted that after the pin 230 is inserted and installed through the three through holes, the two ends of the pin 230 will be expanded, that is, the two ends of the pin 230 can be riveted to form ends similar to bolt heads, thereby preventing the pin 230 from detaching.

[0049] Among them, in this embodiment, in order to increase the service life of the spark plug 01 disassembly and assembly socket tool, the connecting head 210, the vertical ears 220 and the connecting rod 200 are an integrated structure; and the extension length of the connecting protrusion 120 and the height of the through-hole setting position on the two vertical ears 220 relative to the top surface of the connecting head 210 can be adjusted according to actual conditions, as long as the relative rotation of the sleeve rod 100 and the connecting rod 200 can be guaranteed.

[0050] Based on the above embodiment, the ring 400 is a cylindrical structure with a stepped hole arranged inside. The ring 400 includes a first end 410 and a second end 420. The inner diameter of the first end 410 matches the outer diameter of the sleeve rod 100, and the inner diameter of the second end 420 matches the outer diameter of the connector 210.

[0051] Specific as Figure 4 and Figure 5As shown, the collar 400 is a cylindrical structure as a whole, which is sleeved on the outer circumference of the sleeve rod 100, but the through hole type set inside it is a stepped hole, wherein the end with a smaller aperture is the first end 410, and the second end 420 with a larger aperture is just matched with the outer diameter of the sleeve rod 100, which can ensure that the collar 400 can move smoothly along the sleeve rod 100 and will not shake at will; and the aperture of the second end 420 needs to match the outer diameter of the connector 210. It can be understood that when the spark plug 01 needs to be removed, the disassembly sleeve tool needs to be inserted into the rocker cover 02 and the rocker chamber 03. Therefore, the sleeve needs to be inserted into the rocker cover 02 and the rocker chamber 03 during the insertion process. The rod 100 and the connecting rod 200 are locked so that force can be transmitted from the sleeve rod 100 to the spark plug 01 below. In this embodiment, the locking of the sleeve rod 100 and the connecting rod 200 is achieved by the collar 400. When the two are kept in a straight line, the collar 400 can be moved to the hinge between the two. A part of the collar 400 is sleeved on the end of the sleeve rod 100, and a part is sleeved on the outer circumference of the connector 210. In this way, the sleeve rod 100 and the connector 210 will remain in a straight rod structure. Therefore, the sleeve rod 100, the connecting rod 200 and the cartridge 300 will remain in a straight line and in a locked state, so that the force of the wrench can be transmitted.

[0052] Furthermore, the outer diameter of the sleeve rod 100 is smaller than the outer diameter of the connector 210 , and the inner diameter of the first end 410 is smaller than the outer diameter of the connector 210 , so as to axially limit the collar 400 .

[0053] In this embodiment, the sleeve rod 100 is a solid rod-shaped structure, and its outer diameter is slightly smaller than the outer diameter of the connecting head 210. Therefore, the inner diameter of the first end 410 is also smaller than the outer diameter of the connecting head 210. In this way, when the ring 400 moves axially along the sleeve rod 100, the ring 400 moves to the top of the connecting head 210 when the end face of the first end 410 abuts the top of the connecting head 210 and stops. This can effectively prevent the sleeve rod 100 from sliding over the connection between the sleeve rod 100 and the connecting rod 200 when moving. Through the limitation of the connecting head 210, the ring 400 can be accurately moved to the expected position every time, thereby achieving a better locking effect.

[0054] In this embodiment, the cartridge 300 is a cylindrical structure, and a positioning groove 310 is provided on the outer circumference of the end portion thereof facing away from the connecting rod 200 . The positioning groove 310 is used for installing the locking member 500 .

[0055] Specifically, if Figure 2 and Figure 3 As shown, a positioning groove 310 is provided at the lower end portion of the cartridge 300, and the locking member 500 in this embodiment is installed inside the positioning groove 310. After being installed in place, the locking member 500 will function stably to lock the ground spark plug 01 in the cartridge 300.

[0056] Based on the above embodiment, the positioning groove 310 includes an annular groove 311 and two slots 312 along the axis of the cartridge 300 . The top of the slot 312 abuts against the annular groove 311 , and the slot 312 penetrates the wall of the cartridge 300 .

[0057] Specifically, the positioning groove 310 includes an annular groove 311 arranged on the outer circumference of the cartridge 300, and the axis of the annular groove 311 coincides with the axis of the cartridge 300. In addition, two parallel grooves 312 are arranged on the outer circumference of the cartridge 300. The two grooves 312 are both arranged along the axial direction of the cartridge 300, and the tops of the two grooves 312 are both connected to the annular groove 311. However, it should be noted that the two grooves 312 penetrate the barrel wall of the cartridge 300.

[0058] Furthermore, the locking member 500 includes an annular portion 510 that is engaged in the annular groove 311 , and a clamping portion 520 located in the clamping groove 312 . The clamping portion 520 can abut against the spark plug 01 in the cartridge 300 to lock it.

[0059] The locking member 500 in this embodiment is formed as a whole by bending an elastic material, and specifically includes an annular portion 510 that is clamped in the annular groove 311. The diameter of the annular portion 510 is slightly smaller than the diameter of the annular groove 311, so that the annular portion 510 can be firmly clamped in the inside of the annular groove 311. In addition, downward clamping portions 520 are provided at both ends of the annular portion 510. The clamping portions 520 can be installed in the inside of the clamping groove 312. The lower ends of the two clamping portions 520 are provided with inward protrusions. These protrusions can clamp the hexagonal nut of the spark plug 01 inserted into the cartridge 300 to prevent it from falling suddenly when being pulled out.

[0060] In this embodiment, the shape of the positioning groove 310 is set according to the overall shape of the locking member 500, and the two cooperate with each other. Of course, the selection of the locking member 500 can be adjusted according to actual conditions, and this article does not make specific restrictions, but the positioning groove 310 also needs to be adjusted accordingly.

[0061] In another embodiment, a protrusion for limiting the axial movement of the collar 400 is provided on the underside of the connector 210 .

[0062] It can be understood that in order to prevent the ring 400 from sliding over the connection between the sleeve rod 100 and the connecting rod 200 when moving downward, a circle of protrusions can be set at a suitable position on the lower side of the connecting head 210. The outer diameter of the protrusion matches the outer diameter of the ring 400 so that the protrusion can just block the downward movement of the ring 400.

[0063] Preferably, the connecting rod 200 and the cartridge 300 are both made of alloy tool steel, and both are an integrated structure.

[0064] In this embodiment, in order to improve the overall strength of the connecting rod 200 and the chuck 300, both are made of alloy tool steel and are an integrated structure. Specifically, the connecting rod 200 and the chuck 300 are integrally machined from a steel rod, making the overall strength higher.

[0065] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0066] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0067] The above is a detailed introduction to the embodiments provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only intended to help understand the method and core concept of the present invention. It should be noted that, for those skilled in the art, without departing from the principles of the present invention, various improvements and modifications may be made to the present invention, and such improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A foldable spark plug disassembly and assembly tool, characterized in that: include: A sleeve rod (100), one end of which is provided with an interface (110) for connecting to a wrench; A connecting rod (200) is rotatably connected to the other end of the sleeve rod (100); an end of the connecting rod (200) facing away from the sleeve rod (100) is provided with a cartridge (300) sleeved on the outer periphery of the spark plug (01); an end of the cartridge (300) facing away from the connecting rod (200) is provided with a locking member (500) for clamping the spark plug (01); The collar (400) is sleeved on the sleeve rod (100) or the connecting rod (200), and the collar (400) can be moved to the connection between the sleeve rod (100) and the connecting rod (200) to prevent the sleeve rod (100) and the connecting rod (200) from rotating relative to each other.

2. The foldable spark plug disassembly and assembly socket tool according to claim 1, characterized in that: The end of the connecting rod (200) facing away from the cartridge (300) is provided with a cylindrical connecting head (210), and two vertical ears (220) are provided on the upper side of the connecting head (210) opposite to each other, and the vertical ears (220) are provided with through holes at the same height position.

3. The foldable spark plug disassembly and installation socket tool according to claim 2, characterized in that: The end of the sleeve rod (100) facing away from the interface (110) is provided with a connecting protrusion (120), and the connecting protrusion (120) is passed through a pin (230) between the two vertical ears (220).

4. The foldable spark plug removal socket tool according to claim 3, characterized in that: The collar (400) is a cylindrical structure with a stepped hole provided therein. The collar (400) comprises a first end (410) and a second end (420). The inner diameter of the first end (410) matches the outer diameter of the sleeve rod (100), and the inner diameter of the second end (420) matches the outer diameter of the connector (210).

5. The foldable spark plug removal socket tool according to claim 4, characterized in that: The outer diameter of the sleeve rod (100) is smaller than the outer diameter of the connector (210), and the inner diameter of the first end (410) is smaller than the outer diameter of the connector (210), so as to axially limit the collar (400).

6. The foldable spark plug removal socket tool according to claim 1, characterized in that: The cartridge (300) is a cylindrical structure, and a positioning groove (310) is provided on the outer circumference of the end portion thereof facing away from the connecting rod (200). The positioning groove (310) is used for installing a locking member (500).

7. The foldable spark plug removal socket tool according to claim 6, characterized in that: The positioning groove (310) comprises an annular groove (311) and two clamping grooves (312) along the axial direction of the clamping cylinder (300), the top ends of the clamping grooves (312) abut against the annular groove (311), and the clamping grooves (312) penetrate the wall of the clamping cylinder (300).

8. The foldable spark plug removal socket tool according to claim 7, characterized in that: The locking member (500) comprises an annular portion (510) clamped in the annular groove (311), and a clamping portion (520) located in the clamping groove (312), wherein the clamping portion (520) can abut against the spark plug (01) in the cartridge (300) to lock it.

9. The foldable spark plug removal socket tool according to claim 5, characterized in that: A protrusion for limiting the axial movement of the collar (400) is provided on the lower side of the connector (210).

10. The foldable spark plug removal socket tool according to claim 1, characterized in that: The connecting rod (200) and the cartridge (300) are both made of alloy tool steel, and both are of an integrated structure.

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