CN206112157U - Pneumatic valve device and pneumatic pincers - Google Patents

Abstract

The utility model relates to a pneumatic valve device and pneumatic pincers. The pneumatic valve device includes second lid and valve stem assembly. The inside of the lid diapire of second lid is provided with to hold establishes the space, the intercommunication has been seted up to the lid diapire of second lid hold and establish the second through -hole and the first air vent of space and external environment condition, second lid fits the one end of first lid is kept away from to the cylinder, the intercommunication has still been seted up to the lid diapire of second lid hold the second air vent of establishing the inner space of space and cylinder. Valve stem assembly set up in hold establish space and one end inlay in the second through -hole can be followed the second through -hole extends to the external environment condition, valve stem assembly can hold establish removal in the space so that first air vent and second air vent intercommunication or blockage intercommunication between first air vent and the second air vent. The embodiment of the utility model provides a pneumatic valve device and pneumatic pincers sealing performance good and long service life is of a specified duration.

Description

A kind of pneumatic valve device and pneumatic tongs

Technical field

The utility model is related to pneumatic tongs technical field, in particular to a kind of pneumatic valve device and pneumatic tongs.

Background technology

In prior art, the air intake structure of pneumatic tongs is realized by arranging limit shaft, sealing ball and spring in bonnet. Specifically, limit shaft is controlled further controlling ball sealer by handle so that the ball sealer movement and realize air inlet and close Envelope.Jing inventor's research finds that existing air intake structure and sealing means ball sealer occur in actual use, easily and break Split with spring force weaken cannot the phenomenon such as resilience, cause the service life of pneumatic tongs so as to affect the sealing property of pneumatic tongs It is shorter.

Utility model content

In view of this, the purpose of this utility model is, there is provided a kind of pneumatic valve device and pneumatic tongs, to solve above-mentioned asking Topic.

The utility model embodiment provide a kind of pneumatic valve device, the pneumatic valve device include cylinder barrel, the first lid, Second lid, valve rod assembly, first piston component and second piston component.

The base wall of first lid offers first through hole, the one end of first cover cap together in the cylinder barrel.

Being internally provided with for the base wall of second lid is installed with space, and the base wall of second lid offers company Second through hole and the first passage for being installed with space and external environment condition, second cover cap together in the cylinder barrel away from One end of first lid, the base wall of second lid is further opened with being installed with the inside sky of space and cylinder barrel described in connection Between the second passage.

The valve rod assembly is arranged at and described is installed with space and one end is embedded in second through hole and can be from described second Through hole extends to external environment condition, and the valve rod assembly can be moved so that first passage and in described being installed with space The connection that two passages are connected or blocked between first passage and the second passage.

The first piston component is provided with multiple, and multiple first piston components are set in turn in the interior of the cylinder barrel Portion, the gas for entering the cylinder barrel from second passage can promote multiple first piston components to be formed and link and past The position movement of first lid.

The second piston component is arranged at the inside and one end of the cylinder barrel and extends to external rings from the first through hole Border, the second piston component can be moved toward the direction away from second lid under the promotion of the first piston component It is dynamic.

Further, the valve rod assembly includes valve rod and is arranged at the push rod of described valve rod one end, and the push rod is embedded in Second through hole and external environment condition can be extended to from second through hole.

The pneumatic valve device also includes being installed with the handle moved in space, institute described for controlling the valve rod assembly State handle to be arranged at second lid and can move to extrude the push rod.

Further, the length direction of second through hole is the radial direction of second lid, first passage and The length direction of the second passage is the axial direction of second lid, and annular groove, the hand are offered in the middle part of the valve rod Handle extrudes the push rod, can make the valve rod annular groove groove in space it is logical with first passage and second respectively Pore is connected, to connect first passage and the second passage.

Further, the base wall of second lid is further opened with being installed with the 3rd of space and external environment condition described in connection Passage, the length direction of the 3rd passage is the axial direction of second lid, in the groove of the annular groove of the valve rod Space can connect respectively with second passage and the 3rd passage, to connect second passage and the 3rd ventilation Hole.

Further, the pneumatic valve device also includes pneumatic pipe joint, and the pneumatic pipe joint is arranged at described second Lid and at the position of first passage, and/or, the pneumatic valve device also includes muffler, the muffler It is arranged at second lid and at the position of the 3rd passage.

Further, the first piston component includes first piston and is arranged at the first work of the first piston side Stopper rod, near first lid, the first piston is near second lid, the first piston for the First piston bar Component is provided through the 4th passage of the first piston and First piston bar, two adjacent first piston components Fourth hole connection, the First piston bar offers the 5th of the inner space of connection the 4th passage and cylinder barrel and leads to Pore, the 5th passage is opened at the position away from the first piston.

The pneumatic valve device also includes being arranged at the inside of the cylinder barrel and corresponds with the first piston component Baffle assembly, the baffle assembly include shelf, the dividing plate offers via and is sheathed on the First piston bar, from institute State the 4th passage into the gas of the cylinder barrel first piston component can be promoted to move so that the first piston and Air chamber is formed between baffle assembly.

Further, the second piston component includes second piston and is arranged at the second work of the second piston side Stopper rod.The pneumatic valve device also includes offering the base of the carrier head of rod aperture, and the base of the carrier head is embedded in the first through hole, institute State second piston and be arranged at First piston bar, the second piston bar extends to external environment condition through the rod aperture, described Second piston bar is tapered piston bar.

Further, the pneumatic valve device also includes bumper, and the bumper is arranged at adjacent two described the Between one piston component and the second piston component and the first piston component adjacent with the second piston component Between.

Another preferred embodiment of the utility model additionally provides a kind of pneumatic tongs, and the pneumatic tongs includes that binding clip component is gentle Driving valve device, the pneumatic valve device includes cylinder barrel, the first lid, the second lid, valve rod assembly, first piston component and second Piston component, the binding clip component is arranged at first lid.

The base wall of first lid offers first through hole, the one end of first cover cap together in the cylinder barrel.

Being internally provided with for the base wall of second lid is installed with space, and the base wall of second lid offers company Second through hole and the first passage for being installed with space and external environment condition, second cover cap together in the cylinder barrel away from One end of first lid, the base wall of second lid is further opened with being installed with the inside sky of space and cylinder barrel described in connection Between the second passage.

The valve rod assembly is arranged at and described is installed with space and one end is embedded in second through hole and can be from described second Through hole extends to external environment condition, and the valve rod assembly can be moved so that first passage and in described being installed with space The connection that two passages are connected or blocked between first passage and the second passage.

The first piston component is provided with multiple, and multiple first piston components are set in turn in the interior of the cylinder barrel Portion, the gas for entering the cylinder barrel from second passage can promote multiple first piston components to be formed and link and past The position movement of first lid.

The second piston component is arranged at the inside and one end of the cylinder barrel and extends to external rings from the first through hole Border, the second piston component can be moved toward the direction away from second lid under the promotion of the first piston component It is dynamic.

Further, the binding clip component includes the first pressing plate, the second pressing plate, the first binding clip and the second binding clip, described the One pressing plate and the second pressing plate are parallel, and are arranged at first lid, and first binding clip and the second binding clip are hingedly connected to institute State between the first pressing plate and the second pressing plate, the second piston component extends to one end of external environment condition and is located at first binding clip And second between binding clip.

Pneumatic valve device and pneumatic tongs described in the utility model embodiment, is arranged in the space that is installed with of second lid Valve rod assembly, by the movement of the valve rod assembly realizes air inlet, solve sealing ball fractured and spring force weaken cannot The phenomenon of resilience, the sealing property for enhancing the pneumatic valve device and pneumatic tongs also increases the pneumatic valve device and pneumatic The service life of pincers.

Description of the drawings

In order to be illustrated more clearly that the technical scheme of the utility model embodiment, below will be to use needed for embodiment Accompanying drawing be briefly described.It should be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also To obtain other related accompanying drawings according to these accompanying drawings.

A kind of structure chart of pneumatic valve device that Fig. 1 is provided for the utility model embodiment.

Fig. 2 is the profile of Fig. 1.

A kind of structure chart of first lid that Fig. 3 is provided for the utility model embodiment.

A kind of structure chart of second lid that Fig. 4 is provided for the utility model embodiment.

Fig. 5 is the profile of Fig. 4.

A kind of structure chart of valve rod assembly that Fig. 6 is provided for the utility model embodiment.

A kind of second lid and the fiting relation figure of valve rod assembly that Fig. 7 is provided for the utility model embodiment.

Fig. 8 is the profile of Fig. 7.

A kind of another kind of structure chart of valve rod assembly that Fig. 9 is provided for the utility model embodiment.

A kind of structure chart of first piston component that Figure 10 is provided for the utility model embodiment.

Figure 11 is the profile of Figure 10.

A kind of structure chart of baffle assembly that Figure 12 is provided for the utility model embodiment.

Figure 13 is the profile of Figure 12.

A kind of structure chart of second piston component that Figure 14 is provided for the utility model embodiment.

Figure 15 is the profile of Figure 14.

A kind of structure chart of base of the carrier head that Figure 16 is provided for the utility model embodiment.

A kind of a kind of state diagram of pneumatic valve device that Figure 17 is provided for the utility model embodiment.

A kind of another kind of state diagram of pneumatic valve device that Figure 18 is provided for the utility model embodiment.

A kind of structure chart of binding clip component that Figure 19 is provided for the utility model embodiment.

A kind of a kind of state diagram of pneumatic tongs that Figure 20 is provided for the utility model embodiment.

A kind of another kind of state diagram of pneumatic tongs that Figure 21 is provided for the utility model embodiment.

Icon：10- pneumatic tongses；100- pneumatic valve devices；110- cylinder barrels；111- steam vents；The lids of 120- first；121- One through hole；The lids of 130- second；The through holes of 131- second；The passages of 132- first；The passages of 133- second；134- the 3rd ventilates Hole；135- nut caps；140- valve rod assemblies；141- valve rods；1411- annular grooves；142- push rods；The sealing rings of 143- first； 150- first piston components；151- first pistons；The buckling grooves of 1511- first；152- First piston bars；The passages of 1521- the 5th； The passages of 153- the 4th；The sealing rings of 154- second；The wear rings of 155- first；160- second piston components；161- second pistons； The buckling grooves of 1611- second；162- second piston bars；The sealing rings of 163- the 3rd；The wear rings of 164- second；170- handles；180- gas Dynamic pipe joint；190- mufflers；210- baffle assemblies；211- dividing plates；2111- vias；212-O shape circles；213- dust rings；220- Base of the carrier head；221- rod apertures；222- binding clip component installation portions；2221- binding clip component installing holes；230- springs；240- back-up rings Group；241- back-up rings；250- regulation rings；260- bumpers；500- binding clip components；The pressing plates of 510- first；The pressing plates of 520- second；530- First binding clip；The binding clips of 540- second；The roller structures of 550- first；The roller structures of 560- second.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out Clearly and completely describe.Obviously, described embodiment is only a part of embodiment of the utility model, rather than whole Embodiment.The component of the utility model embodiment generally described and illustrated in accompanying drawing herein can be with a variety of configurations To arrange and design.Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit The claimed scope of the present utility model of system, but it is merely representative of selected embodiment of the present utility model.It is new based on this practicality The embodiment of type, the every other embodiment that those skilled in the art are obtained on the premise of creative work is not made, Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.

Fig. 1 and Fig. 2 is referred to, the utility model embodiment provides a kind of pneumatic valve device 100, the pneumatic valve device 100 include cylinder barrel 110, the first lid 120, the second lid 130, valve rod assembly 140, first piston component 150 and second piston Component 160.Alternatively, in the present embodiment, the cylinder barrel 110 offers multiple steam vents 111 for exhaust.

Fig. 3 is please referred to, the base wall of the first lid 120 offers first through hole 121, and first lid 120 is covered Together in one end of the cylinder barrel 110.

Fig. 4 and Fig. 5 is please referred to, being internally provided with for the base wall of second lid 130 is installed with space, described The base wall of two lids 130 offers the second through hole 131 and the first passage that space and external environment condition are installed with described in connection 132, second lid 130 is covered on the one end of the cylinder barrel 110 away from first lid 120, second lid 130 Base wall be further opened with connect described in be installed with space and cylinder barrel 110 inner space the second passage 133.Described pneumatic During the use of valve gear 100, first passage 132 is used to install pneumatic tube.Furthermore, it is necessary to explanation, described It can be that circular strip hole be described and set space for section to be installed with space, or the strip hole of rectangular cross-section is described and sets sky Between.In the present embodiment, described to be installed with space for section be that circular strip hole is described and sets space.

The valve rod assembly 140 is arranged at and described is installed with space and one end is embedded in second through hole 131 and can be from institute State the second through hole 131 and extend to external environment condition, the valve rod assembly 140 can be moved so that described in described being installed with space One passage 132 and the second passage 133 connect or block the company between the passage 133 of first passage 132 and second It is logical.

The first piston component 150 is provided with multiple, and multiple first piston components 150 are set in turn in the cylinder The inside of cylinder 110, the gas for entering the cylinder barrel 110 from second passage 133 can promote multiple first pistons Component 150 forms linkage and moves toward the position of first lid 120.In the present embodiment, the first piston component 150 sets It is equipped with three groups.It should be noted that the setting quantity of the first piston component 150 can also be other.

The second piston component 160 is arranged at the inside and one end of the cylinder barrel 110 and extends from the first through hole 121 To external environment condition, the second piston component 160 can be toward away from described second under the promotion of the first piston component 150 The direction movement of lid 130.

Fig. 6 is please referred to, alternatively, the valve rod assembly 140 includes valve rod 141 and is arranged at the valve rod 141 1 The push rod 142 at end, the push rod 142 is embedded in second through hole 131 and can extend to external rings from second through hole 131 Border.In order to strengthen air-tightness, in the present embodiment, the valve rod 141 is installed with spatial match with described, for example, when described sky is installed with Between for section be circular strip hole describe set space when, the valve rod 141 is that diameter is identical with the diameter for being installed with space Or the cylinder-shaped valve rod 141 of infinite approach.

Alternatively, the pneumatic valve device 100 also includes being installed with space described for controlling the valve rod assembly 140 Mobile handle 170, as depicted in figs. 1 and 2, the handle 170 is arranged at second lid 130 and can move to extrude The push rod 142.

Alternatively, the length direction of second through hole 131 is the radial direction of second lid 130, first ventilation The length direction of the passage 133 of hole 132 and second is the axial direction of second lid 130, and the middle part of the valve rod 141 offers Annular groove 1411, the handle 170 presses the push rod 142, can make in the groove of annular groove 1411 of the valve rod 141 Space connects respectively with the passage 133 of first passage 132 and second, to connect first passage 132 and second Passage 133.

In order to strengthen exhaust efficiency, in the present embodiment, the base wall of second lid 130 is further opened with as shown in Figure 5 Connection described in be installed with the 3rd passage 134 of space and external environment condition, the length direction of the 3rd passage 134 is described The axial direction of the second lid 130, in the groove of the annular groove 1411 of the valve rod 141 space can respectively with second passage 133 connect with the 3rd passage 134, to connect the passage 134 of second passage 133 and the 3rd.

It should be noted that in the present embodiment, the overall structure of second lid 130 is symmetrical, second lid The axial direction of body 130 is the direction of the central shaft of second lid 130, i.e., common with central shaft direction.Second lid The axial direction radial and normal to second lid 130 of body 130, i.e., the radius of described second lid 130 or the direction of diameter.

Alternatively, the central axis of the central shaft of second passage 133 and second lid 130, described One passage 132 is with the 3rd passage 134 respectively positioned at two orientation that the position of second passage 133 is relative.

In the present embodiment, alternatively, the pneumatic valve device 100 also includes the pneumatic pipe joint 180 shown in Fig. 1 and Fig. 2, The pneumatic pipe joint 180 is arranged at second lid 130 and at the position of first passage 132.When described When pneumatic valve device 100 includes pneumatic pipe joint 180, pneumatic tube is mountable to the pneumatic pipe joint 180.Alternatively, institute Pneumatic valve device 100 is stated also including the muffler 190 shown in Fig. 1 and Fig. 2, the muffler 190 is arranged at second lid 130 and at the position of the 3rd passage 134.

Fig. 7 is referred to, when the push rod 142 is not acted on by external force, the valve rod 141 makes near second through hole 131 Obtain second passage 133 to connect by the annular groove 1411 with the 3rd passage 134, or the push rod 142 is received Slight external force effect is arrived, the push rod 142 promotes the valve rod 141 to move toward the direction away from second through hole 131 But insufficient for the connection that the valve rod 141 blocks between the passage 134 of second passage 133 and the 3rd, now, institute Pneumatic valve device 100 is stated in unused state or exhaust condition, if the pneumatic valve device 100 is in exhaust condition, A part of gas of the inside of the cylinder barrel 110 shown in Fig. 2 just can be installed with sky through described again by second passage 133 Between discharge from the 3rd passage 134.

Fig. 8 is referred to, when the push rod 142 is acted on by external force, the push rod 142 promotes the valve rod 141 toward far Move from the direction of second through hole 131, when the part of the annular groove 1411 simultaneously with second passage 133 and the When one passage 132 is connected, second passage 133 is connected with the first passage 132, now, the pneumatic valve device 100 In air-suction state, the gas being installed in the pneumatic tube of the pneumatic pipe joint 180 just can pass through first passage 132 are installed with the inside that space enters the cylinder barrel 110 shown in Fig. 2 from second passage 133 through described again.

It should be noted that for the ease of the maintenance or replacing of the valve rod assembly 140, alternatively, second lid The through hole greater diameter than the valve rod assembly 140, institute are further opened with 130 position away from second through hole 131 State and be provided with through hole for sealing the nut cap 135 for being installed with space.

Fig. 9 is referred to, in order to strengthen the air-tightness of the valve rod assembly 140, alternatively, outside the valve rod assembly 140 Enclose and be further opened with multiple grooves, be provided with the groove for increasing bubble-tight first sealing ring 143.

Figure 10 and Figure 11 is referred to, the first piston component 150 includes first piston 151 and is arranged at first work Fill in the First piston bar 152 of 151 sides.Alternatively, the first piston 151 is in disk form.In the present embodiment, described first lives , near the first lid 120 shown in Fig. 2, the first piston 151 is near the second lid 130 shown in Fig. 2 for stopper rod 152.It is described First piston component 150 is provided through the 4th passage 153 of the first piston 151 and First piston bar 152, adjacent The fourth hole connection of two first piston components 150.The First piston bar 152 offers connection the 4th ventilation 5th passage 1521 of the inner space of hole 153 and cylinder barrel 110, the 5th passage 1521 is opened in away from described first At the position of piston 151.Alternatively, the first piston 151 is provided with the First piston bar 152 that is adjacent for clamping First buckling groove 1511, first buckling groove 1511 structure and is arranged at the periphery of the 4th passage 153 in a ring.

It should be noted that the first piston 151 and First piston bar 152 can be to be connected by modes such as threaded engagements Two absolute construction for connecing, or integral structure.In the present embodiment, the first piston 151 and First piston bar 152 For integral type structure, effectively avoid and cause the first piston because first piston 151 and First piston bar 152 are got rusty 151 and First piston bar 152 perpendicularity is bad, the first piston 151 and thrust of First piston bar 152 is unstable and institute State the appearance of situations such as exhaust has some setbacks in cylinder barrel 110.

Alternatively, the first piston component 150 also includes the second sealing ring 154, and second sealing ring 154 is arranged at The periphery of the first piston 151 is increasing the air-tightness of the pneumatic valve device 100.In order to extend the pneumatic valve device 100 service life, alternatively, the first piston component 150 also includes the first wear ring 155, first wear ring 155 It is arranged at the peripheral position away from the First piston bar 152 of the first piston 151.

Please refer to Figure 12 and Figure 13, the pneumatic valve device 100 also include being arranged at the inside of the cylinder barrel 110 and With the one-to-one baffle assembly 210 of the first piston component 150.The baffle assembly 210 includes dividing plate 211, alternatively, The dividing plate 211 is disc dividing plate 211.The dividing plate 211 offers via 2111 and is sheathed on the first piston shown in Fig. 2 Bar 152, the gas for entering the cylinder barrel 110 from the 4th passage 153 can promote the first piston component 150 to move So as to form air chamber between the first piston 151 and baffle assembly 210.For the ease of exhaust, alternatively, the via 2111 Aperture slightly larger than the First piston bar 150 diameter, but it should be recognized that the aperture of the via 2111 and described the Difference between the diameter of one piston rod 150 is infinitely small.

Alternatively, the periphery of the dividing plate 211 is arranged with O-ring 212.Alternatively, the periphery setting of the via 2111 There is dust ring 213, to reach the purpose of dust seal.

Figure 14 and Figure 15 is referred to, the second piston component 160 includes second piston 161 and is arranged at second work Fill in the second piston bar 162 of 161 sides.Alternatively, the second piston 161 is in disk form, and the second piston bar 162 is in cone Shape.

It should be noted that the second piston 161 and second piston bar 162 can be to be connected by modes such as threaded engagements Two absolute construction for connecing, or integral structure.

Alternatively, the second piston 161 is provided with the second clamping of the First piston bar 152 being adjacent for clamping Groove 1611, second buckling groove 1611 structure in a ring.

In the present embodiment, the second piston component 160 also includes the 3rd sealing ring 163, and the 3rd sealing ring 163 sets It is placed in the periphery of the second piston 161 to increase the air-tightness of the pneumatic valve device 100.In order to extend the pneumatic operated valve dress 100 service life is put, alternatively, the second piston component 160 also includes the second wear ring 164, second wear ring 164 are arranged at the peripheral position away from the second piston bar 162 of the second piston 161.

Figure 16, Figure 17 and Figure 18 are please referred to, alternatively, the pneumatic valve device 100 also includes offering piston rod The base of the carrier head 220 in hole 221, the base of the carrier head 220 is embedded in and is opened in the first through hole 121 of the first lid 120 shown in Fig. 3. In the present embodiment, the second piston 161 is arranged at First piston bar 152, and the second piston bar 162 passes through the piston rod Hole 221 extends to external environment condition.In the present embodiment, the periphery of the second piston bar 162 is additionally provided with the spring for resetting 230, the spring 230 is connected between the second piston 161 and the base of the carrier head 220.

Alternatively, the base of the carrier head 220 is provided with binding clip component installation portion 222, and the binding clip component installation portion 222 is opened up There is the binding clip component installing hole 2221 for mounting clamp head assembly 500.The base of the carrier head 220 is embedded in be opened in shown in Fig. 3 After in the first through hole 121 of one lid 120, the binding clip component installation portion 222 is located at the outside of the cylinder barrel 110.

It should be noted that in the present embodiment, the binding clip component installation portion 222 can be used for mounting clamp head assembly, cut Cutter head assembly or clamp pliers component etc., to form the utensils such as pneumatic tongs, pneumatic scissors or pneumatic dog pincers.

By above-mentioned setting, as shown in figure 17, when the pneumatic valve device 100 is in unused state or exhaust condition When, Fig. 7 is please referred to, second passage 133 and the 3rd passage 134 of second lid 130 is described by being opened in The annular groove 1411 of valve rod 141 is connected, and is located in the first piston component 150 for setting gradually in the cylinder barrel 110 most First piston component 150 near second lid 130 is contacted with second lid 130.The baffle assembly 210 and institute State first piston component 150 to correspond, when in the first piston component 150 for setting gradually in the cylinder barrel 110 most When contacting with second lid 130 near the first piston component 150 of second lid 130,210 sets of the baffle assembly Located at one end of the First piston bar 152 of corresponding first piston component 150 and away from corresponding first piston 151.Now, it is sheathed on the peripheral spring 230 of the second piston bar 162 in the raw.

It should be noted that position of the baffle assembly 210 inside the cylinder barrel 110 is changeless.In order to Preferably stablize position of the baffle assembly 210 inside the cylinder barrel 110, alternatively, the pneumatic valve device 100 is also wrapped Include back-up ring group 240, the back-up ring group 240 is provided with multipair, and each pair back-up ring group 240 is arranged at equal intervals the interior of the cylinder barrel 110 Portion, each pair back-up ring group 240 includes the back-up ring 241 at two intervals, and the baffle assembly 210 is arranged at the two of a pair of back-up ring groups 240 Between individual back-up ring 241, to reach the effect for stablizing the baffle assembly 210.

Alternatively, the pneumatic valve device 100 also includes regulation ring 250, and the regulation ring 250 is arranged at the cylinder barrel 110 periphery, between the lid 130 of first lid 120 and second and near first lid 120.

Equally, as shown in figure 18, when the pneumatic valve device 100 is in use state, i.e., the push rod 142 shown in Fig. 8 Acted on by external force and promote the valve rod 141 to be moved to the annular groove 1411 toward the direction away from second through hole 131 Part connects with the passage 132 of second passage 133 and first simultaneously, so that second passage 133 and the When one passage 132 is connected, the gas being installed in the pneumatic tube of the pneumatic pipe joint 180 just can be logical by described first Pore 132 is installed with the inside that space finally enters described cylinder barrel 110 from second passage 133 through described again.

Hereafter, live into a part of gas push inside the cylinder barrel 110 near the first of second lid 130 Plug assembly 150 is moved toward the direction of first lid 120, is entered into another part gas inside the cylinder barrel 110 and is opened In the 4th passage 153 of the first piston component 150 near second lid 130, enter be opened near A part of gas in 4th passage 153 of the first piston component 150 of second lid 130 is entered and is opened in next the 4th passage 153 of one piston component 150, enters the first piston component 150 being opened near second lid 130 The 4th passage 153 in another part gas by the 5th passage 1521 enter be arranged at its First piston bar With the next first piston of promotion between the first piston 151 of 152 peripheral baffle assembly 210 and next first piston component Component 150 is moved toward the direction of first lid 120.Finally, since the effect of thrust gas, multiple first piston groups Formed between part 150 and link and promote the second piston component 160 to move toward the direction of the first lid 120.Now, it is arranged Compressive state is in the peripheral spring 230 of the second piston bar 162.

After external force effect is released, the push rod 142 drives the valve rod 141 toward the direction of second through hole 131 It is mobile so that the valve rod 141 blocks the connection between the passage 132 of second passage 133 and first and causes institute State the second passage 133 to connect with the 3rd passage 134.Now, described the is promoted under the restoring force effect of the spring 230 , toward moving near the direction of second lid 130, a part of gas in the cylinder barrel 110 is by opening for two piston components 160 Steam vent 111 located at the cylinder barrel 110 is discharged, and another part gas in the cylinder barrel 110 passes through the 5th passage 1521 enter the 4th passage 153, and are opened in second lid 130 by second passage 133 entrance It is installed with space and finally discharges from the 3rd passage 134.

In order to extend the service life of the pneumatic valve device 100, alternatively, the pneumatic valve device 100 also includes anti- Pad 260 is hit, the bumper 260 is arranged between the adjacent two first piston component 150 and the second piston Between component 160 and the first piston component 150 adjacent with the second piston component 160.By the bumper 260 Setting effectively avoid between two first piston components 150 and the second piston component 160 and with it is described Collide between the adjacent first piston component 150 of second piston component 160 and cause the situation of components damage to occur.

Figure 19, Figure 20 and Figure 21 are referred to, another preferred embodiment of the utility model provides a kind of pneumatic tongs 10, described Pneumatic tongs 10 includes binding clip component 500 and above-mentioned pneumatic valve device 100.

In the present embodiment, the binding clip component 500 includes the first pressing plate 510, the second pressing plate 520, the first binding clip 530 and the Two binding clips 540, first pressing plate 510 is parallel with the second pressing plate 520, and is arranged at first lid 120, first pincers 530 and second binding clip 540 be hingedly connected between the pressing plate 520 of first pressing plate 510 and second, the second piston component 160 one end for extending to external environment condition are located between the binding clip 540 of first binding clip 530 and second.When the pneumatic valve device 100 include base of the carrier head 220 when, the binding clip component 500 is arranged at the base of the carrier head 220.Specifically, the binding clip component 500 The pressing plate 520 of first pressing plate 510 and second is arranged at by the base of the carrier head 220 by connection.

First binding clip 530 can be arranged at first pressing plate 510 and second by the set-up mode of shaft hole matching Pressing plate 520, second binding clip 540 can be arranged at first pressing plate 510 and second by the set-up mode of shaft hole matching Pressing plate 520.First binding clip 530 can be arranged at first pressing plate 510 and second by the set-up mode of screw connection Pressing plate 520, second binding clip 540 can be arranged at first pressing plate 510 and second by the set-up mode of screw connection Pressing plate 520.In the present embodiment, in order to avoid the binding clip 540 of first binding clip 530 and second cannot the phenomenon of normal work go out Existing, first binding clip 530 is arranged at the pressing plate 520 of first pressing plate 510 and second, institute by the set-up mode of shaft hole matching State the second binding clip 540 and the pressing plate 520 of first pressing plate 510 and second is arranged at by the set-up mode of shaft hole matching.

When the pneumatic tongs 10 is in unused state or exhaust condition, the pneumatic valve device 100 is in such as Figure 17 Shown state, now, first binding clip 530 and second is taken the lead in open configuration.When the handle 170 is subject to outer masterpiece With toward the pressing of the direction of the valve rod assembly 140 so that the push rod 142 promotes the valve rod 141 toward away from second through hole When 131 direction is moved, the pneumatic valve device 100 is in state as shown in figure 18, now, the second piston component 160 move toward the direction of first lid 120, promote the first roller structure 550 and the second roller knot of the binding clip component Structure 560 so that first binding clip 530 is in closure state.After external force effect is released, the pneumatic valve device 100 is extensive Again to state as shown in figure 17 so that first binding clip 530 and second is taken the lead in open configuration.

In sum, the pneumatic valve device 100 and pneumatic tongs 10 described in the utility model embodiment, in second lid 130 space that is installed with is provided with valve rod assembly 140, and by the movement of the valve rod assembly 140 air inlet is realized, solves ball sealer Rupture and the elastic force of spring 230 weaken cannot resilience phenomenon, enhance the sealing of the pneumatic valve device 100 and pneumatic tongs 10 The service life of the pneumatic valve device 100 and pneumatic tongs 10 can also be increased.

Further, due to the pneumatic valve device 100 described in the utility model embodiment and the first piston of pneumatic tongs 10 Bar 151 and first piston 1562 are integral type structure, are effectively avoided because first piston 151 and First piston bar 152 are given birth to Rust and cause the first piston 151 and First piston bar 152 perpendicularity is bad, the first piston 151 and first piston The thrust of bar 152 is unstable and the cylinder barrel 110 in appearance of exhaust situations such as have some setbacks.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected.Can Being to be mechanically connected, or electrically connect.Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this Concrete meaning in utility model.

In description of the present utility model, it should be noted that term " on ", " top ", " bottom ", " interior ", " outward " etc. indicate Orientation or position relationship be that, based on orientation shown in the drawings or position relationship, or the utility model product is usual when using The orientation put or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or imply institute The component or element of finger must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this reality With new restriction.Additionally, term " first ", " second ", " the 3rd " etc. be only used for distinguish description, and it is not intended that indicate or Hint relative importance.

Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle Within, any modification, equivalent substitution and improvements made etc. should be included within protection domain of the present utility model.

Claims (10)

1. a kind of pneumatic valve device, it is characterised in that the pneumatic valve device includes：

Cylinder barrel；

First lid, the base wall of first lid offers first through hole, and first cover cap is together in the cylinder barrel One end；

Second lid, being internally provided with for the base wall of second lid is installed with space, and the base wall of second lid is opened Second through hole and the first passage for being installed with space and external environment condition is communicated with, second cover cap is together in the cylinder Cylinder away from first lid one end, the base wall of second lid be further opened with connecting described in be installed with space and cylinder barrel Second passage of inner space；

Valve rod assembly, the valve rod assembly is arranged at and described is installed with space and one end is embedded in second through hole and can be from described Second through hole extends to external environment condition, and the valve rod assembly can be moved so that first passage in described being installed with space And second passage connection or the connection blocked between first passage and the second passage；

First piston component, the first piston component is provided with multiple, and multiple first piston components are set in turn in institute The inside of cylinder barrel is stated, the gas for entering the cylinder barrel from second passage can promote multiple first piston component shapes Move into linkage and toward the position of first lid；And

Second piston component, the second piston component is arranged at the inside and one end of the cylinder barrel and extends from the first through hole To external environment condition, the second piston component can be toward away from second lid under the promotion of the first piston component Move in direction.

2. pneumatic valve device according to claim 1, it is characterised in that the valve rod assembly includes valve rod and is arranged at institute The push rod of valve rod one end is stated, the push rod is embedded in second through hole and can extend to external environment condition from second through hole；

The pneumatic valve device also includes being installed with the handle moved in space, the hand described for controlling the valve rod assembly Handle is arranged at second lid and can move to extrude the push rod.

3. pneumatic valve device according to claim 2, it is characterised in that the length direction of second through hole is described the The length direction of the radial direction of two lids, first passage and the second passage is the axial direction of second lid, the valve Offer annular groove in the middle part of bar, the handle extrudes the push rod, can make the valve rod annular groove groove in it is empty Between connect with first passage and the second passage respectively, to connect first passage and the second passage.

4. pneumatic valve device according to claim 3, it is characterised in that the base wall of second lid is further opened with connecting Logical the 3rd passage for being installed with space and external environment condition, the length direction of the 3rd passage is second lid Axially, space can connect respectively with second passage and the 3rd passage in the groove of the annular groove of the valve rod, with Connect second passage and the 3rd passage.

5. pneumatic valve device according to claim 4, it is characterised in that the pneumatic valve device also connects including pneumatic tube Head, the pneumatic pipe joint is arranged at second lid and at the position of first passage, and/or, the gas Driving valve device also includes muffler, and the muffler is arranged at second lid and positioned at the position of the 3rd passage Place.

6. pneumatic valve device according to claim 1, it is characterised in that the first piston component include first piston and The First piston bar of the first piston side is arranged at, near first lid, described first lives the First piston bar Plug is provided through the four-way of the first piston and First piston bar near second lid, the first piston component Pore, the fourth hole connection of adjacent two first piston components, the First piston bar offers connection described the 5th passage of the inner space of four passages and cylinder barrel, the 5th passage is opened in the position away from the first piston Put place；

The pneumatic valve device also include be arranged at the cylinder barrel inside and with the first piston component correspondingly every Board component, the baffle assembly includes shelf, and the dividing plate offers via and be sheathed on the First piston bar, from described the Four passages enter the gas of the cylinder barrel can promote the first piston component to move so that the first piston and dividing plate Air chamber is formed between component.

7. pneumatic valve device according to claim 1, it is characterised in that the second piston component include second piston and It is arranged at the second piston bar of the second piston side；

The pneumatic valve device also includes offering the base of the carrier head of rod aperture, and the base of the carrier head is embedded in the first through hole, institute State second piston and be arranged at First piston bar, the second piston bar extends to external environment condition through the rod aperture, described Second piston bar is tapered piston bar.

8. pneumatic valve device according to claim 1, it is characterised in that the pneumatic valve device also includes bumper, institute State bumper to be arranged between the adjacent two first piston component and the second piston component and with described second Between the adjacent first piston component of piston component.

9. a kind of pneumatic tongs, it is characterised in that the pneumatic tongs is included described in binding clip component and claim 1～8 any one Pneumatic valve device, the binding clip component is arranged at the pneumatic valve device.

10. pneumatic tongs according to claim 9, it is characterised in that the binding clip component includes the first pressing plate, the second pressure Plate, the first binding clip and the second binding clip；

First pressing plate and the second pressing plate are parallel, and are arranged at first lid, and first binding clip and the second binding clip divide It is not articulated between first pressing plate and the second pressing plate, the second piston component extends to one end of external environment condition and is located at institute State between the first binding clip and the second binding clip.