CN104956085A

CN104956085A - Air compressor construction

Info

Publication number: CN104956085A
Application number: CN201380069836.0A
Authority: CN
Inventors: 周文三
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2015-09-30
Anticipated expiration: 2033-02-07
Also published as: DK2955383T3; EP2955383A1; JP6169726B2; EP2955383B1; CN104956085B; WO2014121496A1; PL2955383T3; JP2016505114A; HUE045324T2; KR20150090228A; EP2955383A4

Abstract

The invention discloses an air compressor construction which allows an air compressor to obviate the need for a pressure safety valve to be provided additionally to allow compressed air outputted during operation to be kept within a safe pressure value range. Formed at the top end of a piston head (61) of a piston body (6) are an opening and a concavity forming the bottom wall and circumferential wall of a cushioning air-accommodating indentation (60). This allows, when the piston body (6) is moving reciprocately in a cylinder (3) of the air compressor, for all to be kept within the safe pressure value range with respect to an object that is being inflated, provides use safety, obviates the need for a pressure safety valve to be provided additionally, and reduces manufacturing costs. Also, when the piston body (6) of the air compressor is at an upper dead point while making a linear movement in the cylinder (3), a cushioning space can be found between the piston head (61) of the piston body (6) and an interior top wall opposite thereto of the cylinder (3), thus allowing the piston body applicable for such cylinder to further achieve the effect of smooth operation.

Description

Air compressor is constructed

Technical field

The present invention relates to a kind of air compressor construction, the buffering that referring in particular to a kind of piston body of air compressor can allow the compressed air that is exported of compressor in action to be positively retained in the range of safe pressure value with one receives air drain, this kind design can allow existing air compressor to set up pressure safety valve again, can reduce manufacturing cost.

Background technology

Air compressor is a kind of equipment that can be inflated object to be inflatable product, the general inflation purposes for being widely used in air cushion, tire etc., because air compressor small volume is easy to be carried placement, by portable DC power supply or it can also be connected to simultaneously at automobile cigarette lighter socket, the electrical source of power of air compressor can be provided, upper suitable simple and convenient is being operated and using.In general, the primary structure of existing air compressor is to drive a piston body to carry out shuttle compressed action in cylinder by a motor, compressed air can be then delivered to by cylinder in gas storage seat, the transporting hose that the manifold on gas storage seat is connected again is connected on object to be inflatable product, to reach the purpose of inflation.The construction of existing air compressor, one is that the piston head of piston body is solid state；Furthermore, blowing plant is provided with a pressure safety valve, if the pressure value of pressure-air produced by the purpose of such a design is primarily due to has gone beyond safe pressure value set by object to be inflatable product, the pressure safety valve can be acted automatically, pressure-air inside air storage chamber is discharged outside machine, not further into object to be inflatable, to safeguard the security of blowing plant and object to be inflatable, so also due to setting up such a pressure safety valve, therefore dealer is increased manufacturing cost, it is not inconsistent economic benefit.

The present inventor has the missing of increase manufacturing cost in view of additonal pressure safety valve in blowing plant; also need to be classified as the protective effect of pressure safety valve into indispensable Consideration thoughts in manufacture blowing plant again; it is meticulous R ＆ D design for this; finally a kind of blowing plant for the protecting effect for being required for pressure safety valve but pressure safety valve being added with existing product is developed, this case is produced therefrom.

The content of the invention

The technical problems to be solved by the invention are that providing a kind of air compressor constructs, and it need not additionally set the pressure safety valve with protective effect, you can with safeguard protection effect.

In order to solve the above technical problems, the technical solution of the present invention is：

A kind of air compressor construction, comprising：One box body, the tray interior is equiped with an air compressor, and the air compressor has one can be driven by motor and the piston body that move back and forth up and down in cylinder, and the piston head of the piston body is provided with a vent cap run through and while there is a buffering to receive air drain.

The piston body includes the piston head and a piston rod described in one, the piston head is formed with described buffering in top and receives air drain, the buffering receives the top of air drain and for opening and to piston head inner recess and is formed with a bottom wall and perisporium, and the vent cap and a snap seats that air drain is connected are received with buffering provided with one in bottom wall；One elastic spring is installed in the foregoing snap seats for buffering and receiving in air drain.

It is described buffering receive air drain its periphery be open piston head top formation one tabular surface top end wall, down extend the base end wall for forming the piston head by top end wall, it is additionally provided with the ring groove of a depression on periphery wall between the top end wall and base end wall of piston head, the ring groove and buffering are received air drain and be not communicated with；The first end of a piston rod is connected to by the base end wall of piston head, the tail end of the piston rod, i.e. the second end are simultaneously provided with a pivoted hole；One gas-tight ring, it acts on the function of similar o-ring, and it is installed in the ring groove of foregoing piston head.

The piston body includes the piston head and a piston rod described in one, and the top end wall of a tabular surface is formed in piston head top, by top end wall provided with a vent cap for running through piston head；It is another from top end wall is to piston head inner recess and is formed with one with the disconnected buffering of vent cap and receives air drain；One snap seats are also located on the top end wall, and an elastic spring is installed in the snap seats on foregoing top end wall, and the elastic spring can close foregoing vent cap.

The cylinder has a roof in cylinder interior room top, and the roof has the gas storage seat that a passage can be above insertion to cylinder, several manifolds is provided with gas storage seat, wherein a manifold can connect a flexible pipe；Another manifold links a pressure display table；An also manifold then installs a discouraged valve group, and the soft lid of a shape for hat is provided with the inner terminal for valve group of losing heart；Provided with a valve seat and the spring being butted on above the valve seat at the passage in gas storage seat.

The flexible pipe linked with manifold is incorporated in box body and closed by an open-close cover.

The box body is used as the action for starting or closing air compressor provided with a switching switch, and the push rod that the pressure display table of air compressor can be emerging on the inside of the outer surface of box body, another touch switch then may pass through a bolt and contradict the soft lid of shape for hat of the discouraged valve group on air compressor.

When the piston body that reciprocating is carried out in the cylinder is located at top dead-centre, the piston head of piston body is relative to there being a cushion space between cylinder internal roof.

After such scheme, air compressor construction of the present invention, because the piston head of the piston body of the air compressor in its box body possesses the vent cap run through, and be provided with a buffering and receive air drain, the safe pressure value of inflated article will not be gone beyond by piston body is carried out the air pressure that oscillating rectilinear motion persistently produces in the cylinder of air compressor, allow air compressor that the pressure safety valve with protective effect need not be additionally set, inflated article can be made to be maintained in safe range of pressure values, not only there is safety in utilization, in it need not additionally add the design of pressure safety valve, there is the economic benefit of reduction manufacturing cost again.

In addition, the set piston body of air compressor construction of the present invention in cylinder when reciprocating is carried out positioned at top dead-centre, the piston head of piston body is relative to that can there be a cushion space again between cylinder internal roof, so that the piston body applied to such a cylinder more reaches the benefit of smooth operation.

Brief description of the drawings

Fig. 1 is the box body stereogram of blowing plant of the present invention；

Fig. 2 is another angle level schematic diagram of box body of the invention；

Fig. 3 is air compressor stereogram of the invention；

Fig. 4 is the three-dimensional exploded view of inventive piston body；

Fig. 5 is the sectional axonometric drawing of inventive piston body；

The extraneous air of air compressor is sucked circulation schematic diagram by Fig. 6 for the piston body backward travel of the present invention；

Compressed air circulation schematic diagram when Fig. 7 acts for the piston body forward stroke of the present invention；

Another angle schematic diagram when Fig. 8 acts for the piston body forward stroke of the present invention；

Fig. 9 is another embodiment of the present invention figure；

Figure 10 is another angular profile schematic diagram of the invention；

Figure 11 is another construction piston body three-dimensional exploded view of the invention；

Figure 12 is another construction piston body sectional axonometric drawing of the invention；

The extraneous air of air compressor is sucked circulation schematic diagram by Figure 13 for another construction piston body backward travel of the present invention by air intake；

Compressed air circulation schematic diagram when Figure 14 acts for another construction piston body forward stroke of the present invention.

【Symbol description】

1 box body 11 switching 12 pressure display tables of switch

The flexible pipe of 13 touch switch, 131 push rod 14

The motor of 15 open-close cover, 20 machine plate 21

The cam pin of 22 little gear, 23 gear wheel 24

The roof of 3 cylinder, 31 cylinder interior room 32

The gas storage of 33 passage, 34 inner peripheral wall 4 seat

The manifold of 41 manifold, 42 manifold 43

The spring of 44 valve seat, 45 air storage chamber 46

The 5 soft bolts of lid 52 of the discouraged shape for hat of valve group 51

6 piston bodies 60 buffering is received air drain 601 and is open

The vent cap of 602 bottom wall, 603 perisporium 604

The top end wall of 605 snap seats, 61 chock plug 611

The first end of 612 base end wall, 62 piston rod 621

The ring groove of 622 second end, 63 pivoted hole 64

The piston body of 65 gas-tight ring, 66 reed 7

70 buffering receive air drain 701 be open 702 vent caps

The base end wall of 71 piston head, 711 top end wall 712

The first end of 713 snap seats, 72 piston rod 721

The gas-tight ring of 73 pivoted hole, 74 ring groove 75

76 reeds

Embodiment

In order to further disclose the technological means of the present invention, now with specific embodiment, the present invention will be described in detail.

Fig. 1,3 and Fig. 6 are please refer to, is the air compressor construction in the present invention, it includes a box body 1, and an air compressor is equiped with inside the box body 1（As shown in Figure 3）There is the air compressor cylinder 3 and one that can provide the running of piston body 6 can provide the machine plate 20 of the fixation of motor 21, the machine plate 20 can fix the actuating unit of air compressor, the cam pin 24 that the actuating unit is included on motor 21, the little gear 22 of drive applications and gear wheel 23, the gear wheel 23 links the piston body 6.The actuating unit of air compressor is driven by motor 21 and the piston head 61 of piston body 6 is carried out reciprocating compressed action in the inner peripheral wall 34 of cylinder 3, compressed air can elapse valve seat 44 to be compressed spring 46 via passage 33, compressed air is entered in gas storage seat 4.The main architectural feature of the present invention is the piston head 61 in piston body 6 provided with a vent cap 604 run through and while having a buffering to receive air drain 60; the air pressure that progress oscillating rectilinear motion is persistently produced in the cylinder 3 of air compressor of piston body 6 is set not go beyond the safe pressure value of inflated thing; allow air compressor that the pressure safety valve with protective effect need not be additionally set; not only user is more convenient is inflated thing to being inflated the operation that thing is inflated, and can protect.

It refer to Fig. 4 and Fig. 5, the set piston body 6 of air compressor construction of the present invention includes a piston head 61 and piston rod 62, the top of piston head 61 is formed with and for opening 601 and to the inner recess of piston head 61 and is formed with the buffering of a bottom wall 602 and perisporium 603 at one end and receives air drain 60, the bottom wall 602 received in buffering in air drain 60 is provided with the snap seats 605 of vent cap 604 and one run through, the buffering receive air drain 60 its be open 601 periphery the top of piston head 61 formed a tabular surface top end wall 611, down extend the base end wall 612 for forming the piston head 61 by top end wall 611, the ring groove 64 of a depression is additionally provided with periphery wall between the top end wall 611 and base end wall 612 of piston head 61, the ring groove 64 receives air drain 60 to be not communicated with state with buffering.The first end 621 of a piston rod 62 with certain length is connected to by the base end wall 612 of piston head 61, the tail end of the piston rod 62, i.e. the second end 622 are provided with a pivoted hole 63 simultaneously.One gas-tight ring 65, it acts on the function of similar o-ring, and it can be installed in the ring groove 64 of foregoing piston head 61.One elastic spring 66 can be installed in the foregoing snap seats 605 for buffering and receiving in air drain 60.

The actual use of the air compressor of the present invention see Fig. 3 and Fig. 6 to Fig. 8, the cylinder 3 has a roof 32 in the top of cylinder interior room 31, the roof 32 have a passage 33 can insertion to the gas storage seat 4 of the top of cylinder 3, be provided with several manifolds 41,42 and 43 in gas storage seat 4（Manifold 43 refers to Figure 10）, manifold 41 can connect a flexible pipe 14；Manifold 42 links a pressure display table 12；Manifold 43 then installs a discouraged valve group 5, and the soft lid 51 of a shape for hat is provided with the inner terminal for valve group 5 of losing heart.Provided with said valve seat 44 and the spring 46 being butted on above the valve seat 44 at the passage 33 in gas storage seat 4.Whole air compressor can be assembled within foregoing box body 1, wherein the box body 1（Can be with reference to Fig. 1）A switching switch 11 is physically being provided with as the action for starting or closing air compressor, and the pressure display table 12 of air compressor can be emerging in the outer surface of box body 1, the push rod 131 of another inner side of touch switch 13 then may pass through a bolt 52 and contradict the soft lid 51 of shape for hat of the discouraged valve group 5 on air compressor, in the state of higher pressure force value is obviously presented in inflated thing, the soft lid 51 of shape for hat that user can press touch switch 13 easily to press discouraged valve group 5, the soft lid 51 of the shape for hat can by compression and allow inflated thing overpressure by install this lose heart valve group 5 manifold 43 release.The flexible pipe 14 that manifold 41 is linked can be incorporated in box body 1, and is closed by an open-close cover 15（As shown in Figure 2）, reach the aesthetic property of collection.

The piston body 6 of air compressor can carry out oscillating rectilinear motion in cylinder 3, when rushing stroke on piston body 6, in the air storage chamber 45 that the air of cylinder interior room 31 can be pushed to gas storage seat 4, and then can be exported by the flexible pipe 14 of manifold 41 to object to be inflatable；During 6 undershoot stroke of piston body, then external air can be allowed to use as a servant dynamic elasticity reed 66 via the vent cap 604 run through of piston head 61 and pass into cylinder interior room 31, so going round and beginning again can be by object to be inflatable top off.Can be with reference to Fig. 6 and Fig. 7 in the operating state that cylinder interior room 31 is compressed air about piston body 6.Because inventive piston first 61 provided with buffering receives air drain 60, when rushing stroke to top dead-centre on piston body 6, although the top end wall 611 of piston head 61 is butted on the roof 32 on the top of cylinder interior room 31, but it can allow to be equal to and receive the compressed air of air drain volume and exist in cylinder interior room 31 because buffering receives the presence of air drain 60, such a design can not only allow piston body 6 more to increase the smoothness of running because reducing resistance, it can be also maintained at simultaneously to being inflated thing in safe range of pressure values in gas replenishment process, with safety in utilization.Certainly, the piston body 6 of the present invention also can be applicable to a cylinder 3, refer to Fig. 9, when the piston body 6 of air compressor is located at top dead-centre in carrying out moving along a straight line in cylinder 3, the piston head 61 of piston body 6 has a cushion space 31 relative between the inner top wall 32 of cylinder 3, makes the benefit that smooth operation is more can reach applied to the piston body 6 of such a cylinder 3.

The present invention piston body 7 also can be as shown in Figure 11 to Figure 12 embodiment, the piston body 7 includes a piston head 71 and piston rod 72, the top end wall 711 of a tabular surface is formed in the top of piston head 71, it which is provided with a vent cap 702 run through, one snap seats 713 and for opening 701 and to the inner recess of piston head 71 and it is formed with one at one end with the disconnected buffering of vent cap 702 and receives air drain 70, and top end wall 711 down extends the base end wall 712 for forming the piston head 71, the ring groove 74 of a depression is additionally provided with periphery wall between the top end wall 711 and base end wall 712 of piston head 71, the ring groove 74 and buffering receive air drain 70 also to be not communicated with state.The first end 721 of a piston rod 72 with certain length is connected to by the base end wall 712 of piston head 71, the tail end of the piston rod 72, i.e. the second end 722 are provided with a pivoted hole 73 simultaneously.One gas-tight ring 75, it acts on the function of similar o-ring, and it can be installed in the ring groove 74 of foregoing piston head 71.One elastic spring 76 can be installed in the snap seats 713 on foregoing top end wall 711.Can be with reference to Figure 13 and Figure 14 in the operating state that cylinder interior room 31 is compressed air about such a piston body 7.Because inventive piston first 71 also receives air drain 70 provided with a buffering, when rushing stroke to top dead-centre on piston body 7, although the top end wall 711 of piston head 71 is butted on the roof 32 on the top of cylinder interior room 31, but it can allow to be equal to and receive the compressed air of air drain volume and exist in cylinder interior room 31 because buffering receives the presence of air drain 70, such a design can not only allow piston body 7 more to increase the smoothness of running because reducing resistance, it can be also maintained at simultaneously to being inflated thing in safe range of pressure values in gas replenishment process, with safety in utilization, it can also save the cost for setting up pressure safety valve simultaneously.

Discussed before overall view, the piston body 6 of the present invention receives air drain 60 on its piston head 61 provided with buffering makes whole air compressor to add a pressure safety valve in addition, manufacturing cost can not only be reduced and there is economic benefit, piston body 6 is allowed to have more smoothness and security in running stroke, the present invention is real to have novelty and progressive.

Claims

1st, a kind of air compressor construction, comprising：One box body, the tray interior is equiped with an air compressor, and the air compressor has a piston body that can be driven and moved back and forth up and down in cylinder by motor, it is characterised in that：The piston head of the piston body is provided with a vent cap run through and while there is a buffering to receive air drain.

2nd, air compressor construction as claimed in claim 1, it is characterised in that：The piston body includes the piston head and a piston rod described in one, the piston head is formed with described buffering in top and receives air drain, the buffering receives the top of air drain and for opening and to piston head inner recess and is formed with a bottom wall and perisporium, and the vent cap and a snap seats that air drain is connected are received with buffering provided with one in bottom wall；One elastic spring is installed in the foregoing snap seats for buffering and receiving in air drain.

3rd, air compressor construction as claimed in claim 1, it is characterised in that：It is described buffering receive air drain its periphery be open piston head top formation one tabular surface top end wall, down extend the base end wall for forming the piston head by top end wall, it is additionally provided with the ring groove of a depression on periphery wall between the top end wall and base end wall of piston head, the ring groove and buffering are received air drain and be not communicated with；The first end of a piston rod is connected to by the base end wall of piston head, the tail end of the piston rod, i.e. the second end are simultaneously provided with a pivoted hole；One gas-tight ring, it acts on the function of similar o-ring, and it is installed in the ring groove of foregoing piston head.

4th, air compressor construction as claimed in claim 1, it is characterised in that：The piston body includes the piston head and a piston rod described in one, and the top end wall of a tabular surface is formed in piston head top, by top end wall provided with a vent cap for running through piston head；It is another from top end wall is to piston head inner recess and is formed with one with the disconnected buffering of vent cap and receives air drain；One snap seats are also located on the top end wall, and an elastic spring is installed in the snap seats on foregoing top end wall, and the elastic spring can close foregoing vent cap.

5th, air compressor construction as claimed in claim 1, it is characterised in that：The cylinder has a roof in cylinder interior room top, and the roof has the gas storage seat that a passage can be above insertion to cylinder, several manifolds is provided with gas storage seat, wherein a manifold can connect a flexible pipe；Another manifold links a pressure display table；An also manifold then installs a discouraged valve group, and the soft lid of a shape for hat is provided with the inner terminal for valve group of losing heart；Provided with a valve seat and the spring being butted on above the valve seat at the passage in gas storage seat.

6th, air compressor construction as claimed in claim 5, it is characterised in that：The flexible pipe linked with manifold is incorporated in box body and closed by an open-close cover.

7th, air compressor construction as claimed in claim 1, it is characterised in that：The box body is used as the action for starting or closing air compressor provided with a switching switch, and the push rod that the pressure display table of air compressor can be emerging on the inside of the outer surface of box body, another touch switch then may pass through a bolt and contradict the soft lid of shape for hat of the discouraged valve group on air compressor.

8th, air compressor construction as claimed in claim 1, it is characterised in that：When the piston body that reciprocating is carried out in the cylinder is located at top dead-centre, the piston head of piston body is relative to there being a cushion space between cylinder internal roof.