TWI519714B - Air compressor having inflating and aerosol spraying functions for tires - Google Patents

Description

Inflatable and rubberized air compressor device

The invention provides an air compressor device for aeration and glue filling, in particular to an eccentric cam with a fixed-axis point type using an actuating element to actuate the displacement of the pipe body so that the air compressor achieves a separate tire. Inflatable function or air compressor unit for filling and refilling the broken tire.

The traditional glue applicator basically consists of a cover body, a can body and a pipe body, and the tank body is filled with a chemical glue liquid for repairing tires; the cover body has two manifolds, one of which is accepted as a The high pressure air generated by the air compressor is used as the output chemical glue; the tube body is connected to the cover body, and when the cover body is coupled to the tank body, the tube body is accommodated in the tank body. At present, the equipment provided for repairing damaged tires is matched with a box with an air compressor and a separate glue applicator. When necessary, the user puts the glue applicator into the device. The first transfer hose attached to the gas pipe is connected to the gas outlet of the casing, and the second transfer hose attached to the glue discharge manifold is connected to the gas nozzle of the damaged tire to start air compression in the casing The machine can squeeze the chemical glue in the tank of the gluer and enter the broken tire, so that the tire can be repaired. The design of the box and the glue applicator only allows the glue applicator to repair the tire, and cannot use the pneumatic tire alone.

In view of the fact that the conventional device still has a defect, the inventors have developed an eccentric cam with a fixed-point point type to actuate the displacement of the pipe body so that the air compressor can achieve the tire. A separate air-filling function or an air compressor unit for filling and refilling the broken tires.

The main object of the present invention is to provide an air compressor device for inflating and filling, the device comprising a casing having an air compressor and a glue glue containing a chemical glue for filling the glue, which not only makes The air compressor can achieve a separate inflation function for the tire or a repair function for filling and inflating the damaged tire.

In order to achieve the above object, the solution of the present invention is: an air compressor device for aerating and filling, comprising: a box body having an air compressor capable of generating high-pressure air and a glue applicator, the glue The system has two manifolds, one of which is provided to receive high pressure air from the air compressor, and the other is provided as a chemical glue in the output gluer.

The glue applicator further has a can body and a cover body. The can body has an inner hollow shape and has an open end and a bottom end. The content chamber can be filled with a chemical glue for repairing the tire; the cover system is screwed with the can body. A lower through-pipe and an upper-circle through-tube are formed on the lower end of the cover body, and a plurality of through-grooves are formed on the peripheral wall of the pipe body of the lower-circle pipe, and the bottom end of the lower-circle pipe has a slightly inner diameter Extending into a flat annular bottom cymbal, the annular bottom cymbal forms a circular hole communicating with the inner flow chamber in the lower circular passage tube, the top end of the upper circular passage tube is open and has an opening, and the upper circular passage tube is provided with an opening a first manifold and a second manifold connectable to the inner flow chamber; a spring which can be inserted into the bottom of the flow chamber of the lower circular tube by the opening of the upper circular tube; And a tube body having an inner hollow portion having a top end portion of a larger outer diameter of the tube and a top surface having a closed surface, the top end portion being provided with a sealing ring, the end portion of the bottom end portion being an open opening, below the top end portion Then there are two uppers with a larger tube outer diameter and slightly separated Yuan and two lower ring wall, a first neck ring forming a groove in the outer diameter of the smaller tube section between the top wall and the upper ring, to the first neck ring is disposed through a groove allows the tube a through hole penetrating through the inner and outer phases, a second neck ring groove having a smaller outer diameter of the tube is formed between the upper ring and the lower ring, and a sealing ring is disposed between the two upper ring turns and a lower ring, the pipe body The bottom end section can be inserted into the opening of the upper circular tube and protruded from the circular hole of the bottom cymbal. The lower cymbal of the tube body can be placed against the top end of the spring and positioned in the circular tube and the lower circular tube. At this time, a first annular ring gap is formed between the first neck ring groove and the second neck ring groove and the inner tube wall of the upper and lower circular passage tubes: an axis of the movable member is pivoted on the upper circular tube The hole can be abutted against the closed surface of the top end of the pipe body, and the actuating element can actuate the displacement of the pipe body.

The upper circular passage tube is provided at the open end with a pair of facing grooves which are open at the top end and the bottom end is a closed surface, wherein the shaft hole is located between the pair of through grooves; the service element is provided at one end The eccentric cam has a pair of shaft columns on both sides of the eccentric cam, and the other end of the actuating member is provided with a wrench portion, and the actuating member can be pivoted on the shaft hole of the upper circular passage tube by the shaft column, and The eccentric cam of the actuating element can be located at the open end of the upper circular tube and can abut against the closed surface of the top end of the tube body, the shaft portion is the swing center of the shaft column, and the opposite circular groove of the upper circular tube allows the user The servo element is manipulated to perform a half-circle pivot point swing.

The box system is composed of a first box body, a second box body and a third box body, and has a plurality of partitions in the box body, which can stabilize the air compressor, the glue applicator and a pressure gauge. Between the partitions disposed in the casing, one end of a first transfer hose is coupled to the first manifold of the cover body, so that the first manifold can receive high-pressure air generated by the air compressor. The second transfer hose is coupled to the second manifold of the cover body, so that the chemical glue outputted by the second manifold can flow into the damaged tire through the second transfer hose, and the third transfer hose can be connected to the pressure. The table has only one transfer hose exposed outside the cartridge.

After adopting the above structure, the air compressor device of the present invention can realize the purpose of inflating the tire alone or repairing and inflating the damaged tire.

The specific construction of the present invention and its practical functions are described in detail below.

(11)‧‧‧First box

(110) ‧ ‧ partition

(111)‧‧‧ switch

(112)‧‧‧ Positioning Column

(113)‧‧‧Positioning holes

(114)‧‧‧ side panels

(115)‧‧‧Convex

(12) ‧‧‧Second box

(121) ‧ ‧ inner recess

(122)‧‧‧Perforation

(123)‧‧‧through holes

(124)‧‧‧ side panels

(125)‧‧‧through holes

(126)‧‧‧Convex

(13) ‧‧‧ third box

(130) ‧ ‧ inner space

(131) ‧ ‧ inner recess

(132)‧‧‧through holes

(133) ‧ ‧ missing slot

(134)‧‧‧Snaps

(14)‧‧‧Air compressor

(141) (142)‧‧‧Exhaust manifold

(15)‧‧‧First transmission hose

(16)‧‧‧Second transmission hose

(17)‧‧‧ Third transfer hose

(18)‧‧‧ Pressure gauge

(9) ‧‧ ‧ glue applicator

(2) ‧‧‧ cans

(21) ‧‧‧Open end

(22) ‧‧‧Content Room

(23)‧‧‧Chemical glue

(24) ‧‧‧ bottom

(3) ‧ ‧ cover

(301) (302) ‧ ‧ gap

(31) ‧‧‧Connecting Department

(311)‧‧‧垣

(312)‧‧‧ Washers

(32)‧‧‧Down round pipe

(33) ‧‧‧ 垣

(331)‧‧‧ Round holes

(34) ‧‧‧through slots

(35) ‧‧‧Circulation room

(36) ‧ ‧ upper round pipe

(37) ‧‧‧First Manifold

(38) ‧‧‧Second manifold

(39) ‧ ‧ openings

(391)‧‧‧Axis hole

(392)‧‧‧ 槽槽

(4) ‧ ‧ servant components

(41) ‧ ‧ eccentric cam

(411)‧‧‧ shaft column

(412) ‧ ‧ long distance

(413)‧‧‧Short-end

(42) ‧‧‧ wrench

(5) ‧ ‧ body

(50) ‧ ‧ ‧ vacancies

(51) ‧ ‧ top section

(510) ‧ ‧ closed face

(511) ‧‧‧Seal ring

(52) ‧ ‧ 上上垣

(53) ‧‧‧Seal ring

(55)‧‧‧First neck ring groove

(550)‧‧‧through holes

(56) ‧‧‧ Lower ring

(57) ‧‧‧Seal ring

(58)‧‧‧Second neck ring groove

(59) ‧‧‧Bottom section

(590)‧‧‧ openings

(6) ‧ ‧ spring

(7)‧‧‧Lock Firmware

The first figure is a perspective view of the air compressor device of the present invention

Second figure: is an exploded perspective view of an air compressor device for aeration and glue filling according to the present invention.

The third figure is a schematic cross-sectional view of the glue applicator of the present invention.

Fourth figure: is a plan view of the A-A direction of the second figure.

Figure 5 is a schematic cross-sectional view of the present invention.

Figure 6: Schematic diagram of the action of the fourth figure.

In order to further disclose the technical means of the present invention, the present invention will be described in detail by way of specific embodiments.

Please refer to the first and second figures, the air compressor 14 device of the present invention includes a box body, a glue applicator 9 and a pressure gauge 18, the box system is composed of a first box body 11, A second box body 12 and a third box body 13 are combined, and a plurality of partition plates 110 are disposed in the first box body 11, which can stably accommodate the air compressor 14 and the pressure gauge 18 in the first position. Between the partitions 110 in the casing 11, a switch 111 for activating and stopping the air compressor 14 is disposed on the outer surface of the first casing 11, and the first casing 11 is provided with a plurality of positioning holes 113. The positioning post 112, the second casing 12 is provided with a curved inner concave portion 121 and a plurality of perforations 122 corresponding to the positioning holes 113 of the first casing 11, which can be sequentially disposed in plurality. The locking member 7 is locked into the through hole 122 of the second casing 12 and the positioning hole 113 of the first casing 11, and the combined opening of the first casing 11 and the second casing 12 is provided with a through hole 123. The pressure gauge 18 can be exposed in the through hole 123 for the user to view, and the side plates 114 and 124 of the first case 11 and the second case 12 are joined. a through hole 125, and the edges of the side plates 114, 124 extend perpendicularly from the convex plates 115, 126, and the upper side edge of the third case 13 having an inner space 130 is recessed with a notch 133 at the upper end of the outer plate A through hole 132 is formed through the through hole 132, and an inner concave portion 131 is disposed on one side of the through hole 132, and can extend to the other side plate and corresponding to the inner concave portion 121 of the second casing 12, and the side edge of the side plate have A latching portion 134 is engageable with the convex plates 115, 126 of the first casing 11 and the second casing 12. A glue applicator 9 can be placed in the inner space 130 of the third casing 13 and abuts against the side plates 114, 124 of the first casing 11 and the second casing 12 to form a stable positioning without tilting or The phenomenon of overturning. One end of the first transfer hose 15 is connected to the outlet manifold 141 of the air compressor 14, and the other end is connected to the first manifold 37 of the glue applicator 9. One end of a second transfer hose 16 is connected to the second manifold 38 of the glue applicator 9, and the other end is connected to a tire nozzle (not shown). One end of a third transfer hose 17 is connected to the outlet manifold 142 of the air compressor 14, and the other end is connected to the pressure gauge 18. When the switch 111 is activated, the air pressure generated by the air compressor 14 can enter the tire through the first transfer hose 15, the inside of the glue applicator 9, and the second transfer hose 16, thereby achieving a separate inflation function or perfusion. The chemical glue 23 performs the function of repairing the tire and inflating, and in the present invention, only one transfer hose is exposed outside the casing, and the transfer hose is the aforementioned second transfer hose 16.

Referring to the third to sixth figures, the glue applicator 9 basically has a can body 2, a cover body 3, and a tube body 5. The can body 2 is hollow and has an open end 21 and a bottom end 24, and the can body The content chamber 22 of 2 can be filled with the chemical glue 23 for the use of the glue (refer to the fifth and sixth figures). The lid body 3 can be coupled to the can body 2 by means of screwing or heat fusion. In the present embodiment, the connecting end 31 of the lid body 3 is screwed to the open end 21 of the can body 2. . A lower through-pipe 32 and an upper-circle-through pipe 36 extend from the lower end of the cover body 3, and a protrusion 311 extends from the bottom wall of the cover body 3 between the periphery of the lower-circle pipe 32 and the connecting portion 31 of the cover body 3. And placing a washer 312 between the tenon 311 and the connecting portion 31 to make the cover 3 more stable and tight when screwing the open end 21 of the can body 2, and spacing on the peripheral wall of the tubular body of the lower circular through tube 32 A plurality of through grooves 34 are formed at the bottom end of the lower circular passage tube 32 and have a bottom cymbal 33 extending slightly inwardly to the inner diameter, and the annular bottom cymbal 33 is formed to be circulated in the lower circular passage tube 32. The circular hole 331 is connected to the chamber 35 (refer to the fourth figure). The top end of the upper circular through-pipe 36 has an opening 39, and a pair of openings 392 are formed at the end of the opening 39, and the bottom end is open and the bottom end is a closed surface. It is still a relative axial hole 391. The upper circular duct 36 is provided with a first manifold 37 and a second manifold 38 which are connectable to the inner flow chamber.

A spring 6 can be placed in the opening 39 of the upper circular passage 36 and located on the bottom cymbal 33 at the bottom end of the flow chamber 35 in the lower circular passage 32.

a tube body 5 of suitable length and having an inner hollow portion 50 having a top end portion 51 of a larger tube outer diameter and a top surface having a closed surface 510, the top end portion 51 being provided with a sealing ring 511, the bottom end portion 59 of which The end is an open opening 590. A plurality of upper ring turns 52 and two lower ring turns 56 having a larger outer diameter and slightly separated from each other are disposed below the top end 51, and a smaller outer diameter of the outer tube is formed between the top end 51 and the upper ring 52. The first neck ring groove 55 is formed at the first neck ring groove 55 through a through hole 550 for allowing the inner and outer portions of the pipe body 5 to pass through; and a smaller pipe outer diameter is formed between the upper ring 垣 52 and the lower ring 垣 56. The second neck ring groove 58 is provided with a sealing ring 53 and 57 between the two upper ring turns 52 and the two lower ring turns 56. The bottom end portion 59 of the tubular body 5 can be inserted into the opening 39 of the upper circular passage 36 and protruded from the circular hole 331 of the bottom cymbal 33. At this time, the lower cymbal 56 of the tubular body 5 can just abut against the top end of the spring 6. Positioned in the circular through tube 36 and the lower circular through tube 32 above the cover body 3, the first neck ring groove 55 and the second neck ring groove 58 are formed to be movable between the inner tube walls of the upper and lower circular passage tubes 36, 32. The annular voids 301, 302 are located. The first movable member 4 is provided with an eccentric cam 41 at one end and a pair of shafts 411 on both sides of the eccentric cam 41. The other end of the actuating member 4 is provided with a wrench portion 42 through which the actuating member 4 can be The shaft post 411 is pivotally disposed on the shaft hole 391 of the upper circular passage tube 36, and the eccentric cam 41 of the actuating member 4 is located at the end of the opening 39 of the upper circular passage tube 36 and can abut against the closing surface 510 of the top end of the tube body 5, The upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the upper portion of the shaft portion 411.

After the spring 6, the tubular body 5, and the service element 4 are combined on the lid body 3, and the lid body 3 is coupled to the can body 2, the lid body 3 is rounded through the tube 32 and most of the tube body 5, for example, from the bottom. The loop 56 to the bottom section 59 are both housed in the contents chamber 22 of the can body 2, as shown in the third figure.

Please refer to the first and fifth figures, which is an assembly diagram of the air compressor 14, the pressure gauge 18 and the glue applicator 9 being built in the casing. The air outlet manifold 142 of the air compressor 14 is softened by the third transmission. tube 17 is connected to the pressure gauge 18, and the air outlet manifold 141 of the air compressor 14 is connected by one end of the first transfer hose 15, and the other end is passed through the through hole 125 and connected to the complement placed in the third casing 13. The first manifold 37 of the gluer 9 and the round tube 36 above the glue applicator 9 are fastened to the notch 133 of the third casing 13, and the second manifold 38 of the glue applicator 9 is coupled with The second transfer hose 16 is slidable through the through holes 132 and can be bent to the inner recesses 131 and 121 on one side for storage.

Please refer to the fifth and sixth figures, which are shown in the description of the inflation and filling operation when the glue applicator 9 is built in the casing, and the auxiliary member 4 is pressed against the closed surface of the pipe body 5 by the short end 413 of the eccentric cam 41. 510 (can refer to the third figure at the same time), at this time, the spring 6 has not been compressed, and the high pressure gas generated by the air compressor 14 enters the cover body 3 via the path of the first transfer hose 15 and the first manifold 37. The upper circular tube 36 is located in the annular space 302 in the second neck ring groove 58 of the tube body 5, so that the first manifold 37 and the second manifold 38 form an interoperable phenomenon, and then directly by the second Manifold 38 outputs high pressure air to separately inflate the tire, as shown in Figure 5. When the tire is broken and the tire inflation is required, the user's plate-action member 4 changes the contact state between the eccentric cam 41 and the closed surface 510 of the tubular body 5 from the short-distance end 413 to the contact state of the long-distance end 412. As shown in the sixth figure, the spring 6 at this stage can be compressed to cause a downward displacement of the pipe body 5, at which time the upper ring 垣 52 of the pipe body 5 just blocks the mutual communication relationship between the first manifold 37 and the second manifold 38. The high-pressure air entering the upper circular passage 36 from the first manifold 37 cannot be directly outputted directly by the second manifold 38 at this time, but is directly passed through the lower circle through the gap 302 between the second neck ring 58 and the upper circular passage 36. The plurality of tubes 32 pass through the groove 34 to enter the contents chamber 22 of the can body 2. At this time, the high pressure air can force the chemical glue 23 in the can body 2 to enter the tube body 5 from the opening 590 of the bottom end portion 59 of the tube body 5. Lifting up and up quickly until the first neck ring groove 55 flows out from the through hole 550 into the gap 301 and outputs the chemical glue 23 for the glue according to the second manifold 38, and the chemical glue 23 is revealed again. The second transfer hose 16 outside the cartridge performs a potting function. According to the techniques disclosed in the fifth and sixth figures, when the glue applicator 9 is positioned in the casing, the present invention can not only provide the function of inflating alone, but when the tire is broken, only the operating member 4 needs to be manipulated to make up. The function of plastic repair.

In view of the foregoing, the eccentric cam 41 of the present invention is provided with a fixed-point eccentric cam 41 sufficient to actuate the displacement of the tubular body 5 to enable the air compressor 14 to perform a separate inflation function on the tire or to perform damage to the tire. The purpose of filling glue and inflating is also very convenient for operation.

(11)‧‧‧First box

(110) ‧ ‧ partition

(111)‧‧‧ switch

(112)‧‧‧ Positioning Column

(113)‧‧‧Positioning holes

(114)‧‧‧ side panels

(115)‧‧‧Convex

(12) ‧‧‧Second box

(121) ‧ ‧ inner recess

(122)‧‧‧Perforation

(123)‧‧‧through holes

(124)‧‧‧ side panels

(125)‧‧‧through holes

(126)‧‧‧Convex

(13) ‧‧‧ third box

(131) ‧ ‧ inner recess

(132)‧‧‧through holes

(133) ‧ ‧ missing slot

(134)‧‧‧Snaps

(14)‧‧‧Air compressor

(15)‧‧‧First transmission hose

(16)‧‧‧Second transmission hose

(17)‧‧‧ Third transfer hose

(18)‧‧‧ Pressure gauge

(9) ‧‧ ‧ glue applicator

(2) ‧‧‧ cans

(24) ‧‧‧ bottom

(3) ‧ ‧ cover

(36) ‧ ‧ upper round pipe

(37) ‧‧‧First Manifold

(38) ‧‧‧Second manifold

(39) ‧ ‧ openings

(391)‧‧‧Axis hole

(392)‧‧‧ 槽槽

(4) ‧ ‧ servant components

(411)‧‧‧ shaft column

(42) ‧‧‧ wrench

(7)‧‧‧Lock Firmware

Claims (6)

An air compressor device for inflating and replenishing comprises: a box body having an air compressor capable of generating high-pressure air and a glue applicator, the glue applicator further having a tank body and a cover body, wherein the tank body is The inner cavity has an open end and a bottom end, and the inner chamber of the can body can be filled with the chemical glue for the glue application; the cover system is combined with the can body, and the lower end of the cover body extends with a through-through circular tube And the upper circular pipe, the plurality of through grooves are formed on the peripheral wall of the pipe body of the lower circular pipe, and the bottom end of the lower circular pipe has a bottom raft which extends slightly to the inner diameter and has a planar annular shape. Forming a circular hole which can communicate with the inner flow chamber in the lower circular passage tube, and the top end of the upper circular passage tube has an opening shape and has an opening, and a pair of opposite ends are provided at the open end, and the top end is open and the bottom end is closed. The through groove is provided with a shaft hole which is still opposite to the through hole, and the upper circular pipe has two manifolds, one of which is provided to receive the high pressure generated from the air compressor Air, another manifold is provided as an output a chemical glue in the device; an actuating component having an eccentric cam at one end and a wrench at the other end, the movable component being pivotable on the upper circular pipe for the user to control the actuating component It is a half-circle pivot point swing; by manipulating the actuating element, the air compressor can achieve a separate inflation function of the tire or a function of filling the broken tire. The air compressor device for inflating and filling the rubber according to claim 1, wherein the box system is composed of a first box body, a second box body and a third box body. The first casing has a plurality of partitions, and the air compressor and a pressure gauge are stably and steadily accommodated between the partitions in the first casing, and the first casing is provided with a start and stop air compression. a switch for the action of the machine, wherein the first box body is provided with a plurality of positioning posts having a positioning hole, and the second box body surface is provided with a curved inner concave portion having an opening shape and a plurality of perforations corresponding to the positioning holes of the first box body, which can be sequentially inserted with a plurality of locks to the perforations of the second box body and the positioning holes of the first box body, and the combined first box body And a through hole is formed in the upper side joint of the second box body, wherein the pressure gauge is exposed in the through hole for the user to view, and the side plate of the first box body and the second box body is provided with a through hole, and The edge of the side plate extends perpendicularly from the convex plate, and the upper side edge of the third box body having an inner surrounding space is concavely provided with a notch, and a through hole is completely penetrated at the upper end of the outer side plate, and one side of the through hole is provided The inner recess can extend to the other side panel and corresponding to the inner recess of the second casing, and the edge of the side panel has a buckle portion which can be convex with the first box and the second box The plates are engaged. The air compressor device for inflating and filling the rubber according to claim 2, wherein the glue applicator is disposed in an inner space of the third casing and is in contact with the first casing and the second The side plates of the casing form a stable positioning without causing tilting or tipping. The air compressor device of claim 3, wherein the bottom wall of the cover between the outer periphery of the lower circular pipe and the connecting portion of the cover body is provided with a tenon, and A gasket is placed between the tenon and the connecting portion to make the cover body more stable and tight when the open end of the can body is screwed; the upper circular pipe is provided with a first manifold and a second communicating with the inner flow chamber a manifold, one end of a first transfer hose is coupled to the first manifold of the cover body such that the first manifold can receive high pressure air generated by the air compressor, and a second transfer hose is coupled to the cover body The second manifold enables the chemical glue outputted by the second manifold to flow into the damaged tire via the second transfer hose, and one end of the third transfer hose receives the high-pressure air generated by the air compressor. The other end is connected to the pressure gauge; a spring can be placed in the opening of the upper circular passage tube and located on the bottom sill of the bottom end of the circulation chamber in the lower circular passage tube; a tube body having an appropriate length and having an inner hollow portion The top end of the outer diameter of the large tube and the top surface is closed. The top end section is provided with a sealing ring, and the end of the bottom end section has an open opening, and below the top end section, there are two upper ring turns and two lower ring turns which have a larger outer diameter of the pipe and are slightly separated. A first neck ring groove having a smaller outer diameter of the pipe body is formed between the top end portion and the upper ring groove, and a through hole for allowing the inner and outer phases of the pipe to pass through is formed in the first neck ring groove; between the upper ring ring and the lower ring ring Forming a second neck ring groove having a smaller outer diameter of the tube, and providing a sealing ring between the two upper ring turns and the two lower ring turns, and the bottom end portion of the pipe body can be inserted into the opening of the upper round pipe The circular hole of the bottom is pierced and protruded. At this time, the ring under the pipe body can be positioned against the top end of the spring and positioned in the round pipe and the lower circular pipe above the cover body. At this time, the first neck ring groove and the second neck A displaceable annular gap is formed between the ring groove and the inner tube wall of the upper and lower circular tubes. An air compressor device for inflating and refilling according to claim 4, characterized in that only one transfer hose is exposed outside the casing, and the transfer hose is the aforementioned second transfer hose. An air compressor device for inflating and refilling according to claim 4, characterized in that: the eccentric cam of the actuating member has two pairs of shafts, and is pivotally disposed on the upper circular tube The shaft hole, and the eccentric cam of the actuating element can be located at the open end of the upper circular tube and can abut against the closed surface of the top end of the tube body, the handle portion is the swing center of the shaft column, and the upper circular tube is oppositely worn. The slot allows the user to manipulate the service element to perform a pivotal pivot point of approximately half circumference.