TWM641538U - Removing the connecting rod of the spark plug - Google Patents

Abstract

A connecting rod, comprising: a joint with a main hole formed inside, the main hole extending a group of auxiliary holes to the outer surface of the joint; a square post protruding from the outside of the joint, and a straight hole formed inside the square post hole, the straight hole connected to the main hole of the joint; a rolling member, which is inserted into the main hole of the joint; a set of manual beads, which are respectively placed into the corresponding secondary holes of the joint; and, a mandrel , which reciprocates from the main hole of the joint to the straight hole of the square column, and the mandrel pushes the rolling element to roll and contact the set of manual beads, so that the square column has a quick release function and can be combined with any spark plug Sleeve for assembly or disassembly of spark plugs.

Description

Removing the connecting rod of the spark plug

The present invention relates to the field of hand tools, especially an extension rod, which is suitable for installing a spark plug on a general vehicle, or removing said spark plug from the vehicle.

A vehicle that generates kinetic energy with fuel (such as gasoline, diesel or liquefied petroleum gas, etc.) usually has an engine. The engine is fitted with more than one spark plug by way of screw lock. A hand tool locks or unscrews the described spark plug, so the hand tool is called a spark plug socket wrench, or a socket wrench.

China Announcement No. 2618731Y utility model patent case discloses that the spark plug sleeve wrench is a T-shaped structure, which is composed of a horizontal handle combined with one end of an operating rod, and the other end of the operating rod is connected to a sleeve. The sleeve is dedicated to a spark plug of a single specification. Spark plugs of different sizes must be replaced with suitable sleeves. The sleeve is integrated with the operating rod, and a user often needs to prepare more than two spark plug sleeve wrenches to replace a suitable hand tool at any time to cope with the installation or removal of the spark plug. However, in addition to increasing the production cost, multiple spark plug socket wrenches will also increase the load, which is unfavorable for carrying.

China Authorized Announcement No. 2707436Y Utility Model Patent Case, which discloses that the socket wrench has an upper pivot shaft and a lower pivot shaft, and the lower pivot shaft connects a sleeve and a universal connecting rod together , the upper pivot shaft connects the universal connecting rod and a handle together. The upper and lower pivot shafts are implemented with rivets, because the rivets are not conducive to replacement, so the connection between the sleeve, the universal connecting rod and the handle is not easy to replace, there is a limitation of a single specification spark plug for the sleeve, and it is still necessary to prepare multiple Only a socket wrench can handle the installation or removal of spark plugs of different specifications, so the production cost is still expensive, and the load has not been reduced, which is not conducive to carrying.

Therefore, how to reduce the burden of carrying and improve the disadvantages of high production cost has become an urgent problem to be solved in this creation.

Based on the installation or disassembly of the spark plug, the author of this case researched a new post, the main purpose is to use the quick-release mechanical structure to allow multiple sleeves of different specifications to be used with a single post on a suitable spark plug to complete The purpose of installation or disassembly effectively solves the long-standing disadvantages of conventional technology such as heavy load, unfavorable portability and high production cost.

In order to achieve the purpose of quick release, the connecting rod of this invention includes: a joint, which forms a main hole inside, and the main hole extends a set of auxiliary holes to the outer surface of the joint; a square column, which protrudes from the outside of the joint, A straight hole is formed inside the square column, and the straight hole is connected to the main hole of the joint; a rolling element is inserted into the main hole of the joint; a set of manual beads are respectively placed into the corresponding auxiliary holes of the joint and, a mandrel, which reciprocates from the main hole of the joint to the straight hole of the square column, and the mandrel pushes the rolling element to roll and contact the group of manual beads, so that the square post has quick release Function Can be combined with any spark plug sleeve to perform assembly or disassembly of spark plugs.

In order to make the purpose, features and advantages of this creation easy to understand, one or more preferred embodiments are given hereby, and detailed descriptions are as follows in conjunction with the attached drawings.

Next, in conjunction with the accompanying drawings, describe the embodiment of this case. In the drawings, the same or similar structures or units are denoted by the same reference numerals. It is foreseeable that the described embodiments are only some examples of this case, not all embodiments. Other embodiments that can be deduced based on the examples described above, or structures that can be modified or changed as needed, all belong to the scope of protection of this case.

In the following descriptions, directional terms such as "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and "side" refer only to the directions of the drawings . The use of directional terms is for a better and clearer description and understanding of this case, and does not express or imply that the devices or components described must have a specific orientation, structure, and operation, so it cannot be understood as a limitation on the technical content of this case.

In the following descriptions, "mounted", "connected", "connected" or "set on" should be interpreted in a broad sense, such as fixed connection, detachable connection, integral connection, mechanical connection, unless there are specific and clear specifications and limitations , directly connected, indirectly connected, or internally connected between two elements. Those skilled in the field of this case can understand the specific meanings of the above terms in each embodiment and even this case by virtue of common knowledge or experience.

Unless otherwise specified, in the following description, "plurality" means two or more.

As shown in Figure 1, the present invention creates a first embodiment of an adapter 20 that combines a hand tool 10 with one of a set of spark plug sockets 11, 11a, 11b.

In Figure 1, the hand tool 10 is a wrench. The wrench has a grip at one end and a head at the other end. A drive assembly (not shown) is installed on the head, and a ratchet (not shown) of the drive assembly can idle in one direction in the head and work in reverse. For example, clockwise, the holding portion idles around the drive assembly. In the counterclockwise direction, the grip part drives the driving assembly to rotate in the same direction, and transmits a torque of the hand tool 10 . Therefore, the wrench is also called a ratchet wrench.

As for the specific structure of the drive assembly, it is not a technical feature of this creation, so it will not be described in detail.

Wherein, there are three spark plug sleeves 11, 11a, and 11b in the group, and they have the same structure as each other. One end of the spark plug sleeve 11 forms a square hole 12, and each of the four planes of the square hole 12 has a bead hole 13 (see Figure 2). The other end of the spark plug sleeve 11 forms a hexagonal hole 14, which communicates with the square hole 12, and can be dedicated to a spark plug with a smaller size (not shown).

Another spark plug sleeve 11a has the same size standard square hole 12 (see Figure 2), but the hexagonal hole 14 is dedicated to a spark plug of moderate size.

The remaining spark plug sleeve 11b also has a square hole 12 of the same size (see Fig. 2), but the hexagonal hole 14 is dedicated to a spark plug with a larger size.

As shown in Figure 2, the connecting rod 20 includes: a rocker 21, a joint 30, a pin 40, a ring piece 41, a rolling member 42, a group of manual beads 43, a limiting member 44, a A mandrel 45, a fastener 47, a compression spring 48 and a steel ball 49.

In this embodiment, the top end of the rocker 21 is provided with another square hole 23 so as to form a sleeve portion 22 . There is a ball head 24 at the bottom of the rocker 21 , and a neck 25 is formed between the ball head 24 and the rocker 21 . Two expansion holes 27 are formed inside the ball head 24 , and each expansion hole 27 has a narrow end and a wide end. The two narrow ends are connected to each other to form a circular hole 26 , and the circular hole 26 is in the center of the ball head 24 . Two, the wide end is located on the circumferential surface of the ball head 24 , and a plurality of hypotenuses extend from the circular hole 26 to the outer surface of the ball head 24 .

Wherein, one end of the connector 30 sinks into a circular groove 31 , and a square post 34 protrudes from the other end. A straight hole 33 and a hole 51 intersecting each other are formed inside the square column 34 . This hole 51 is connected to the side of said square column 34 . One end of the straight hole 33 passes through the end surface of the square column 34 , and the other end connects to the circular groove 31 through a main hole 32 inside the connector 30 . Along the radial direction of the joint 30 , a group of auxiliary holes 35 extend from the main hole 32 to the outer peripheral surface of the joint 30 .

When the ball head 24 is put into the circular groove 31, the pin 40 passes through the wall of the circular groove 31 surrounded by the joint 30, and the circular hole 26 and the expansion hole 27 of the ball head 24, so that the ball head 24 pivots. The joints 30 can be rotated relative to each other. According to the design of the circular hole 26 , the rocker 21 swings back and forth around the pin 40 in the circumferential direction. The structure of the expansion hole 27 allows the rocker 21 to swing back and forth along the direction of an arrow 28 relative to the two ends of the pin 40 . In addition, the diameter of the neck portion 25 is smaller than that of the rocker 21 , which can enlarge the mutual swing range of the rocker 21 and the joint 30 .

At the same time, the ring piece 41 tightens the outer wall of the joint 30 to prevent the pin 40 from detaching from the ball head 24 and the joint 30 .

Furthermore, the mandrel 45 is inserted into the main hole 32 of the joint 30 , passes through the compression spring 48 , and then enters the straight hole 33 of the square post 34 . One end of the compression spring 48 bears against the buckle 47 embedded in the mandrel 45 , and the other end resists the bottom surface of the main hole 32 . The compression spring 48 is deformed, and accumulates a force 53 (refer to FIG. 6 ), so that the mandrel 45 can reciprocate between the main hole 32 and the straight hole 33 . Therefore, the force 53 is proportional to a deflection of the compression spring 48 .

In addition, a stepped portion 46 forms a side of the mandrel 45 , and the stepped portion 46 faces the hole 51 of the square column 34 . The high-order part of the step portion 46 pushes the steel ball 49 into the hole 51 of the square column 34 , so that part of the steel ball 49 is normally exposed to the square column 34 to counteract the force 53 of the compression spring 48 .

In this embodiment, the rolling element 42 is a rigid sphere, and the sphere rolls in contact with the end surface of the mandrel 45 . Under the force of the compression spring 48 , the mandrel 45 pushes the rolling element 42 to roll and contact the set of manual balls 43 . Along the direction of a group of forces 55 (see FIG. 6 ), the group of manual beads 43 enters the corresponding auxiliary holes 35 of the joint 30 .

Referring to FIG. 3 , the circumferential surface of the rolling element 42 rolls in contact with the manual ball 43 to maintain a contact point 50 . A diameter of the manual bead 43 is larger than the diameter of a diameter-reduced end 36 of the outlet of the auxiliary hole 35, so that the partial manual bead 43 is exposed to the outside of the joint 30, but the manual bead 43 does not break away from the auxiliary hole 35. possible.

In FIG. 4 , the limiting member 44 is another pin that passes through the wall of the joint 30 surrounding the main hole 32 and is located between the circular groove 31 and the rolling member 42 . The restricting member 44 prevents the rolling member 42 from leaving the main hole 32 and entering the circular groove 31 of the joint 30 , so the restricting member 44 does not affect the interlocking relationship between the set of manual balls 43 and the rolling member 42 .

As shown in FIG. 5 , a set of opposing external forces 54 are applied to the set of manual balls 43 to generate a resultant force 52 to the rolling element 42 to indirectly push the mandrel 45 out of the square column 34 . At this moment, the lower portion of the stepped portion 46 faces the hole 51 , allowing the steel ball 49 to retreat into the stepped portion 46 of the mandrel 45 , so the steel ball 49 does not expose the surface of the square column 34 .

In FIG. 6 , the square post 34 is inserted into the square hole 12 of the spark plug sleeve 11 . After the external force disappears, the set of manual balls 43 is free, and no longer exerts pressure on the rolling element 42 . The active force 53 of the compression spring 48 is transmitted to the buckle 47 to indirectly push the mandrel 45 against the rolling member 42 . According to the two component forces 55 in opposite directions, the group of manual beads 43 returns to its original position, so that a part of the manual beads 43 exposes the outer surface of the joint 30 . The high-order part of the step part 46 faces the hole 51 (see Fig. 5), and pushes the part of the steel ball 49 again to expose the square column 34, thereby engaging the corresponding bead hole of the spark plug sleeve 11 13. Complete the action of combining the connecting rod 20 with the spark plug sleeve 11 .

Looking back at Figures 1 and 2, the part of the drive assembly that exceeds the head can be inserted into the square hole 23 of the socket part 22 . In this way, the connecting rod 20 transmits the torque of the hand tool 10 to the spark plug sleeve 11 , and the spark plug is locked for installation or loosened for disassembly.

The 7th figure draws the second embodiment of the creation connecting rod 20, its structure is roughly the same as that of the first embodiment, the difference lies in: one more set of caps 60, each of the caps 60 is formed at the position facing the manual bead 43 A chamber 61 . The cap 60 is put into the auxiliary hole 35 of the joint 30 , and the chamber 61 receives a part of the manual beads 43 without affecting the operation of the group of manual beads 43 . Simultaneously, the set of manual beads 43 pushes the cap 60 through the reduced-diameter end 36 to partially expose the outside of the joint 30 .

As shown in FIG. 8, a protrusion 62 is formed around the outer periphery of the cap 60 . In this embodiment, the protrusion 62 is a ring of flanges, which are blocked by the reduced-diameter end 36 of the auxiliary hole 35 to prevent the cap 60 from leaving the joint 30 without warning.

In some embodiments, a plurality of discontinuous protrusions 62 are formed on the periphery of the cap 60 , and the protrusions 62 are a rib.

Those skilled in the art can understand and make changes to the above-disclosed embodiments without departing from the broad concepts of the present disclosure. Therefore, this case is not limited to the specific embodiments disclosed in the specification, and all modifications made according to the spirit and technical scope of this case shall be covered and protected by the textual content defined in the scope of the patent application.

10: Hand tools 11, 11a, 11b: spark plug sleeve 12, 23: square hole 13: bead hole 14: Hexagonal hole 20: post 21: Joystick 22: socket part 24: ball head 25: Neck 26: round hole 27: expansion hole 28: Arrow 30: Connector 31: round groove 32: main hole 33: straight hole 34: square column 35: Auxiliary hole 36: Diameter reduced end 40: pin 41: ring piece 42: rolling parts 43: manual beads 44: Restrictions 45: mandrel 46: rank department 47: Fasteners 48: Compression spring 49: steel ball 50: touch points 51: hole 52: Heli 53: force 54: external force 55: force component 60: cap 61: Containment room 62: convex part

Figure 1 depicts a first embodiment of the inventive adapter capable of combining a spark plug socket with a hand tool. Figure 2 shows the interior of the adapter and spark plug socket. Figure 3 enlarges the partial structure of the joint in Figure 2. Fig. 4 depicts a sectional view of post assembly from another angle. Figure 5 shows the action of the adapter before it is combined with the spark plug socket. Figure 6 shows the state after the connecting rod is combined with the spark plug sleeve. Fig. 7 draws the partial structure of the second embodiment of the creation post. Figure 8 enlarges the partial structure of the joint in Figure 7.

11: Spark plug sleeve

12: square hole

13: bead point

14: Hexagonal hole

20: post

21: Joystick

24: ball head

25: Neck

26: round hole

27: expansion hole

30: Connector

31: round groove

32: main hole

33: straight hole

34: square column

35: Auxiliary hole

36: Diameter reduced end

40: pin

41: ring piece

42: rolling parts

43: manual beads

44: Restrictions

45: mandrel

46: rank department

47: Fasteners

48: Compression spring

49: steel ball

51: hole

52: Heli

54: external force

Claims (10)

A connecting rod for removing a spark plug, comprising: a joint (30); a main hole (32), which forms the inside of the joint (30); a group of auxiliary holes (35), the group of auxiliary holes (35) from The main hole (32) extends to the outer surface of the joint (30); a square column (34), which protrudes from the outside of the joint (30); a straight hole (33), which forms the square column (34) ), the straight hole (33) is connected to the main hole (32) of the joint (30); a rolling element (42), which is inserted into the main hole (32) of the joint (30); a set of Manual beads (43), respectively inserted into the corresponding auxiliary holes (35) of the joint (30); and a mandrel (45), which reciprocates from the main hole (32) of the joint (30) to the The straight hole (33) of the square column (34), the mandrel (45) promotes the rolling element (42) to roll and contact the group of manual beads (43). Dismounting the post of the spark plug as described in claim 1, further comprising: a fastener (47), which is embedded in the mandrel (45); and a compression spring (48), which is sleeved on the mandrel (45), one end of the compression spring (48) resists the bottom surface of the main hole (32), and the other end bears against the fastener (47), providing a force (53) to the mandrel (45). Dismantling the post of spark plug as described in claim item 1, also includes: a hole (51), it forms the inside of described square column (34), and this hole (51) intersects described straight hole (33); a step part (46), which forms the position where the mandrel (45) faces the hole (51); and a steel ball (49), which is pushed into the hole (51) by the step part (46) to The outer surface of the square column (34) can be partially exposed, and the step portion (46) allows the steel ball (49) to retreat into the square column (34). As described in claim item 1, disassemble the connecting rod of the spark plug, wherein the outlet of the auxiliary hole (35) is a diameter reduction end (36), and a diameter of the diameter reduction end (36) is smaller than the manual bead (43) The diameter of the manual bead (43) is partially exposed to the outside of the joint (30). Dismounting the post of the spark plug as described in claim item 4, also includes: a group of caps (60), the cap (60) has a chamber (61); the group of caps (60) is inserted into the joint (30) In the corresponding auxiliary hole (35), the chamber (61) receives a partial manual bead (43), which pushes the cap (60) through the reduced-diameter end (36) to partially expose the outside of the connector (30). As described in Claim 5, the connecting rod of the spark plug is disassembled, wherein at least one protrusion (62) is formed on the outside of the cap (60), and the protrusion (62) is blocked by the diameter-reducing end (36) to prevent the The cap (60) is disengaged from said adapter (30). Disassemble the post of the spark plug as described in Claim 6, wherein the protrusion (62) is a ring of flanges, or a rib. As described in Claim 1, the connecting rod of the spark plug is disassembled, wherein the joint (30) surrounds the wall of the main hole (32) with a restrictor (44), and the restrictor (44) prevents the rolling element from (42) exits the main bore (32). As described in Claim 8, disassemble the connecting rod of the spark plug, wherein the limiting member (44) is a pin. Dismantling the connecting rod of the spark plug as described in claim item 1, also includes: a rocking rod (21), which is connected to the joint (30) and can swing, and the rocking rod (21) and the square column (34) are in the The two ends of the connector (30).

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