CN110822187B - Sealing piston structure of connecting joint for connecting pipe of electric sprayer - Google Patents
Sealing piston structure of connecting joint for connecting pipe of electric sprayer Download PDFInfo
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- CN110822187B CN110822187B CN201911142328.6A CN201911142328A CN110822187B CN 110822187 B CN110822187 B CN 110822187B CN 201911142328 A CN201911142328 A CN 201911142328A CN 110822187 B CN110822187 B CN 110822187B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a sealing piston structure of a connecting joint for a connecting pipe of an electric sprayer, which enables a concave piston to be tightly attached to the outer wall of a water pipe through a water pipe position avoiding groove and can discharge air in an adsorption sealing cavity to the maximum extent so as to enhance the adsorption force. The improved structure is characterized in that an upper air pit is formed in the top of the concave piston, the cross section of the upper air pit is inverted trapezoid, a water pipe avoiding groove is formed in the bottom of the concave piston, the cross section of the water pipe avoiding groove is semicircular, two adsorption hole avoiding grooves are formed in the bottom of the concave piston, the two adsorption hole avoiding grooves are respectively located on two sides of the water pipe avoiding groove, two lower air pits are formed in the bottom of the concave piston and are respectively located on two sides of the water pipe avoiding groove, the cross section of each lower air pit is trapezoid, a sealing ring is sleeved on the outer ring of the concave piston, and the sealing ring is a rubber ring.
Description
Technical Field
The invention discloses a sealing piston structure of a connecting joint for a connecting pipe of an electric sprayer, relates to a sealing piston structure used by the connecting joint for the connecting pipe of the electric sprayer, and belongs to the field of agricultural equipment. In particular to a sealing piston structure which enables a concave piston to be tightly attached to the outer wall of a water pipe through a water pipe avoiding groove and can discharge air in an adsorption sealing cavity to the maximum extent so as to enhance the adsorption force.
Background
At present, the electric sprayer is generally adopted to spray pesticide on crops in the field of agricultural planting, the electric sprayer is time-saving and labor-saving, simultaneously, the disadvantage that pesticide filters out to hurt operators is eliminated, in addition, the spraying distance and the spraying range are larger, the spraying connecting pipe of the electric sprayer is easy to loosen and fall off at the connecting part of the connecting pipe and the sprayer connector in the actual use process, the inconvenience of the use of a user is greatly caused, and the falling off can also cause the pesticide to be sprayed out on the human body to cause injury to the human body, the notice number CN207188093U discloses a connecting structure for the electric sprayer connecting pipe, which is convenient to disassemble, the connecting structure comprises a sprayer body, one side of the sprayer body is communicated with a hose, the end of the hose, which is far away from the sprayer body, is communicated with a water inlet pipe, the end of the water inlet pipe, which is far away from the hose, is communicated with a connecting pipe, and the connecting part of the connecting pipe and the water inlet pipe is fixedly connected with a fixed box, the connecting pipe has been run through at the top of fixed case to the bottom of fixed case is run through and is had the inlet tube, the equal fixedly connected with spring in both sides of fixed incasement wall bottom, its splint when using are pressing from both sides tight the connecting pipe, because splint clamping-force is executed from both sides and is exerted, and the connecting pipe receives inward extrusion force and produces and warp, leads to connecting pipe and the not hard up production clearance of inlet tube junction, and its connection leakproofness is relatively poor, produces the drippage phenomenon easily.
The applicant is for solving a connector for electric nebulizer connecting pipe that above-mentioned problem designed, its device includes the shell, interior water outlet sleeve pipe, the connecting pipe, the raceway, sealed piston isotructure, but the existence that the inside raceway of shell blockked of discovery rectangular form when using, lead to the raceway both sides to leave great empty space, the space that the piston can't extrude both sides is with its interior air escape, make the absorption chamber of adsorption orifice department be difficult to form great negative pressure adsorption force degree, the fastening force degree that leads to its and atomizer connecting pipe to be connected receives the influence, can not reach better absorption fixed action.
Disclosure of Invention
In order to improve the situation, the invention provides a sealing piston structure of a connecting joint for a connecting pipe of an electric sprayer, which is a sealing piston structure that a concave piston can be tightly attached to the outer wall of a water pipe through a water pipe avoiding groove, and air in an adsorption sealing cavity can be discharged to the maximum extent so as to enhance the adsorption force.
The invention relates to a sealing piston structure of a connecting joint for an electric sprayer connecting pipe, which is realized by the following steps: the invention relates to a sealing piston structure of a connecting joint for connecting pipes of an electric sprayer, which consists of a concave piston, an upper air pit, an adsorption hole avoiding groove, a water conveying pipe avoiding groove and a lower air pit, wherein the top of the concave piston is provided with the upper air pit, the section of the upper air pit is inverted trapezoid, the bottom of the concave piston is provided with the water conveying pipe avoiding groove, the section of the water conveying pipe avoiding groove is semicircular, the bottom of the concave piston is provided with two adsorption hole avoiding grooves, the two adsorption hole avoiding grooves are respectively positioned at two sides of the water conveying pipe avoiding groove, the bottom of the concave piston is provided with two lower air pits, the two lower air pits are respectively positioned at two sides of the water conveying pipe avoiding groove, the section of each lower air pit is trapezoid, a sealing ring is sleeved on the outer ring of the concave piston, the sealing ring is a rubber ring, one section of the sealing ring corresponding to the water conveying pipe avoiding groove is distributed along the arc-shaped surface of the water conveying pipe avoiding groove, the groove depth of the upper air pit is smaller than that of the lower air pit, and the adsorption hole avoiding groove penetrates through the concave piston;
furthermore, the bottom surface of the adsorption hole avoiding groove is an arc-shaped surface, and the depth of the adsorption hole avoiding groove is gradually reduced from the front side to the rear side.
The invention also relates to a connecting joint for the spraying connecting pipe of the electric sprayer, which is characterized in that: the anti-skid device is characterized by comprising pressing buttons, push rods, connecting pipes, a shell, an outer water outlet sleeve, an inner air bag, an outer air bag, sealing pistons, sealing rings, a water delivery pipe, a spring, an air bag air passage, an adsorption cavity, an air bag sealing cavity, an adsorption hole and a sealing sleeve, wherein the shell is of a rectangular shell structure, two pairs of push rods are respectively arranged on two opposite surfaces of the shell from top to bottom, one end of each push rod is arranged outside the shell, the other end of each push rod penetrates through the shell and is arranged in the shell, the sealing sleeve is arranged at the joint of each push rod and the shell and is a rubber sleeve, the two pressing buttons are respectively and fixedly arranged on one end of the two pairs of push rods, a plurality of anti-skid convex points are arranged on the pressing buttons, the two sealing pistons are arranged in the shell and are respectively and fixedly connected with the other ends of the two pairs of push rods, the sealing rings are sleeved on the sealing pistons, and the air bag sealing cavities are formed between the sealing pistons and the inner wall of the shell, the sealing ring is a rubber ring, the spring is sleeved on the push rod and positioned between the sealing piston and the inner side surface of the shell, one end of the spring is connected with the inner side surface of the shell, the other end of the spring is connected with the sealing piston, the water pipe is arranged in the shell, two ends of the water pipe are respectively arranged on two opposite front and back surfaces of the shell, an adsorption sealing cavity is formed between the water pipe and the sealing piston as well as between the inner wall of the shell, one end of the connecting pipe is arranged on the back side surface of the shell and is communicated with one end of the water pipe, the outer wall of the connecting pipe is provided with threads, one end of the water outlet sleeve is arranged on the front side surface of the shell and is communicated with the other end of the water pipe, the water outlet sleeve is arranged in the water outlet sleeve, a splicing ring cavity is formed between the water outlet sleeve and the water outlet sleeve, and a limiting ring is arranged on the inner wall of the water outlet sleeve, the outer wall of the inner water outlet sleeve is provided with a limiting ring, the limiting ring is close to the shell, an adsorption cavity is formed among the limiting ring, the outer water outlet sleeve, the inner water outlet sleeve and the outer wall of the shell, the front side wall of the shell is provided with two adsorption holes which are communicated with the adsorption cavity and the adsorption sealing cavity, the outer air bag is arranged on the inner wall of the outer water outlet sleeve and is positioned between the other end of the outer water outlet sleeve and the limiting ring, the inner air bag is arranged on the outer wall of the inner water outlet sleeve and is positioned between the other end of the inner water outlet sleeve and the limiting ring, the wall of the outer water outlet sleeve is internally provided with two air bag air passages, one end of each air bag air passage in the wall of the inner water outlet sleeve is communicated with the outer air bag, the other end of each air bag air passage is communicated with the corresponding air bag air passages in the inner water outlet sleeve, one end of each air bag in the wall of the inner water outlet sleeve is communicated with the inner air bag, the outer air bag is an annular air bag, the inner air bag is an annular air bag, the sealing piston is made of rubber, the inner diameter of the water delivery pipe is smaller than that of the connecting pipe, the inner diameter of the water delivery pipe is smaller than that of the inner water outlet sleeve, a sealing sleeve is arranged between the push rod and the side wall of the shell, and the aperture of the adsorption hole is gradually increased towards the direction of the outer water outlet sleeve.
As used herein, "upper", "lower", "front" and "back" refer to "upper", "lower", "front" and "back" as shown in FIG. 1.
Advantageous effects
The air in the shell is effectively adsorbed and sealed, extruded and discharged, the air in the cavity can be maximally discharged, and the space utilization rate is improved.
And secondly, the adsorption force generated by the adsorption holes is improved, and the connection fastening performance of the connection joint is improved.
Thirdly, the use and the operation are simple and convenient.
Fourth, the cooperation is used with the attach fitting for the electric nebulizer connecting tube, and the effect is better.
Drawings
FIG. 1 is a perspective view showing a structure of a sealing piston of a joint for connecting pipes of an electric atomizer according to the present invention;
FIG. 2 is a schematic view showing the construction of a sealing piston of a joint for connecting pipes of an electric atomizer according to the present invention;
FIG. 3 is a schematic structural view showing a sealing piston structure of an embodiment 2 of a joint for connecting pipes of electric sprayers according to the present invention;
FIG. 4 is a perspective view showing a coupling joint for a spray coupling pipe of an electric sprayer according to the present invention;
FIG. 5 is a schematic view showing the construction of a joint for a spray connecting pipe of an electric atomizer according to the present invention;
FIG. 6 is a three-dimensional structure diagram of the internal structures of the water outlet sleeve and the water outlet sleeve of the joint for the spray connecting pipe of the electric sprayer according to the present invention;
FIG. 7 is a schematic view showing the construction of a joint housing for a spray connection pipe of an electric atomizer according to the present invention;
fig. 8 is a perspective view showing a structure of a joint for a spray connection pipe of an electric nebulizer used in the present invention.
In the attached drawings
Wherein the method comprises the following steps: the pressure button (1) (21), the push rod (2) (22), connecting pipe (3), shell (4), go out water sleeve pipe (5), interior water sleeve pipe (6) of going out, interior gasbag (7), outer gasbag (8), sealing piston (9), sealing washer (10) (25), raceway (11), spring (12), gasbag air flue (13), adsorb chamber (14), gasbag sealed chamber (15), adsorb sealed chamber (16), adsorption hole (17), atomizer connecting pipe (18), device connection screw (19), seal cover (20), go up pit (23), spill piston (24), adsorption hole is kept away position groove (26), raceway is kept away position groove (27), lower pit (28), arcwall face (29).
The specific implementation mode is as follows:
example 1:
the invention relates to a sealing piston structure of a connecting joint for an electric sprayer connecting pipe, which is realized by the following steps: the invention relates to a sealing piston structure of a connecting joint for a connecting pipe of an electric sprayer, which consists of a concave piston (24), an upper air pit (23), an adsorption hole avoiding groove (26), a water pipe avoiding groove (27) and a lower air pit (28), wherein the top of the concave piston (24) is provided with the upper air pit (23), the section of the upper air pit (23) is in an inverted trapezoid shape, the bottom of the concave piston (24) is provided with the water pipe avoiding groove (27), the section of the water pipe avoiding groove (27) is in a semicircular shape, the bottom of the concave piston (24) is provided with two adsorption hole avoiding grooves (26), the two adsorption hole avoiding grooves (26) are respectively positioned at two sides of the water pipe avoiding groove (27), the bottom of the concave piston (24) is provided with the two lower air pits (28), the two lower air pits (28) are respectively positioned at two sides of the water pipe avoiding groove (27), and the section of the lower air pit (28) is in a trapezoid shape, the outer ring of the concave piston (24) is sleeved with a sealing ring (25), the sealing ring (25) is a rubber ring, a section of the sealing ring (25) corresponding to the water pipe avoiding groove (27) is distributed along an arc-shaped surface (29) of the water pipe avoiding groove (27), the groove depth of the upper air pit (23) is smaller than that of the lower air pit (28), and the adsorption hole avoiding groove (26) penetrates through the concave piston (24).
When the air-suction type air-suction device is used, the concave piston (24) and a push rod (22) of a connecting joint are connected and mounted, a person presses the pressing button (21) to enable the concave piston (24) to move towards the water pipe (11), so that the groove wall of a water pipe avoiding groove (27) at the bottom of the concave piston (24) is attached to the outer wall of the water pipe (11), and then the empty positions at two sides of the water pipe (11) in the shell (4) are effectively and fully extruded, air in the adsorption sealing cavity (16) is discharged to the maximum extent, negative pressure adsorption capacity generated by the adsorption cavity (14) is improved, and when the air-suction device is attached, a certain amount of air is stored in the air discharging pit (28) to improve the air storage capacity of the concave piston (24);
after the sprayer connecting pipe (18) is inserted, when the pressing button (21) is released, the concave piston (24) is reset and moves away from the water conveying pipe (11), so that the size of the air bag sealing cavity (15) is reduced, the inner air bag (7) and the outer air bag (8) are inflated to expand the air bag, the section of the upper air pit (23) is in an inverted trapezoid shape, the contact area of the inner side inclined plane of the upper air pit (23) is larger than that of the inner side inclined plane of the upper air pit (23) when the inner air bag (7) and the outer air bag (8) are pushed, the pushing effect is better, the inner air bag (7) and the outer air bag (8) are fully inflated, and the clamping effect of the sprayer connecting pipe (18) is better;
example 2:
the difference between this example and example 1 is: the bottom surface of the adsorption hole avoiding groove (26) is an arc-shaped surface (29), and the depth of the adsorption hole avoiding groove is gradually reduced from the front side to the rear side; when the air-guiding device is used, the arc-shaped surface (29) can better guide air, the resistance is small, the exhaust effect is better due to the change of the depth, and the ventilation effect is enhanced;
an upper air pit (23) is formed in the top of the concave piston (24), the section of the upper air pit (23) is in an inverted trapezoid design, the inner side surface of the upper air pit (23) is an inclined surface, so that the contact area is larger when gas is pushed, and the pushing effect is better;
the section of the water pipe avoiding groove (27) is semicircular, and the water pipe avoiding groove can be attached to the shape of the water pipe (11), so that the water pipe avoiding groove (27) is conveniently sleeved on the water pipe (11);
the bottom of the concave piston (24) is provided with two adsorption hole avoiding grooves (26), so that when the concave piston (24) is pushed towards the water pipe (11), the adsorption holes (17) are not blocked to influence the gas circulation;
the section of the lower air pit (28) is in a trapezoidal design, and the mouth part at the bottom is larger, so that gas can enter the lower air pit for storage conveniently;
the sealing ring (25) is distributed along the arc-shaped surface (29) of the water delivery pipe avoiding groove (27) corresponding to one section of the water delivery pipe avoiding groove (27), so that the water delivery pipe avoiding groove (27) can be avoided, a circle of sealing can be formed on the groove piston, and the sealing effect is ensured;
the concave piston (24) is matched with the water pipe position avoiding groove (27), the water pipe position avoiding groove (27) at the bottom of the concave piston (24) can be sleeved on the water pipe (11) when the concave piston is pushed to the water pipe (11), and then the empty positions at two sides of the water pipe (11) in the shell (4) are fully extruded, so that air in the adsorption sealing cavity (16) is discharged to the maximum extent, and the negative pressure adsorption capacity generated by the adsorption cavity (14) is improved;
the concave piston (24) is matched with the upper air pit (23), so that the propelling effect on gas can be improved, and the inflating effect on the inner air bag (7) and the outer air bag (8) can be improved;
the concave piston (24) is pushed towards the direction of the water pipe (11), and the design that the groove wall of the water pipe clearance groove (27) at the bottom of the concave piston (24) is attached to the outer wall of the water pipe (11) can fully extrude the empty positions at two sides of the water pipe (11) in the shell (4) so as to discharge the air in the adsorption sealing cavity (16) to the maximum extent and improve the negative pressure adsorption capacity generated by the adsorption cavity (14);
the purpose that the concave piston (24) can be tightly attached to the outer wall of the water pipe (11) through the water pipe avoiding groove (27) and the air in the adsorption sealing cavity (16) can be discharged to the maximum degree to enhance the adsorption force is achieved.
The invention also relates to a connecting joint for the spraying connecting pipe of the electric sprayer, which is characterized by consisting of a pressing button (1), a push rod (2), a connecting pipe (3), a shell (4), an outer water outlet sleeve (5), an inner water outlet sleeve (6), an inner air bag (7), an outer air bag (8), a sealing piston (9), a sealing ring (10), a water conveying pipe (11), a spring (12), an air bag air passage (13), an adsorption cavity (14), an air bag sealing cavity (15), an adsorption sealing cavity (16), an adsorption hole (17) and a sealing sleeve (20), wherein the shell (4) is of a rectangular shell structure, two pairs of push rods (2) are respectively arranged on two opposite upper and lower surfaces of the shell (4), one end of each push rod (2) is arranged outside the shell (4), the other end of each push rod (2) penetrates through the shell (4) and is arranged in the shell (4), the sealing sleeve (20) is arranged at the connecting part of each push rod (2) and the shell (4), the sealing sleeve (20) is a rubber sleeve, two pressing buttons (1) are respectively and fixedly arranged at one end of two pairs of push rods (2), a plurality of anti-skidding salient points are arranged on the pressing buttons (1), two sealing pistons (9) are arranged in the shell (4) and are respectively and fixedly connected with the other ends of the two pairs of push rods (2), sealing rings (10) are sleeved on the sealing pistons (9), an air bag sealing cavity (15) is formed between the sealing pistons (9) and the inner wall of the shell (4), the sealing rings (10) are rubber rings, a spring (12) is sleeved on the push rods (2) and is positioned between the sealing pistons (9) and the inner side surface of the shell (4), one end of the spring (12) is connected with the inner side surface of the shell (4), the other end of the spring (12) is connected with the sealing pistons (9), a water conveying pipe (11) is arranged in the shell (4), and two ends of the water conveying pipe (11) are respectively arranged on the front and back opposite surfaces of the shell (4), an adsorption sealing cavity (16) is formed between the water conveying pipe (11) and the sealing piston (9) and between the inner walls of the shell (4), one end of the connecting pipe (3) is arranged on the rear side surface of the shell (4) and is communicated with one end of the water conveying pipe (11), threads are arranged on the outer wall of the connecting pipe (3), one end of the water outlet sleeve (5) is arranged on the front side surface of the shell (4), one end of the water outlet sleeve (6) is arranged on the front side surface of the shell (4) and is communicated with the other end of the water conveying pipe (11), the water outlet sleeve (6) is arranged in the water outlet sleeve (5), an insertion ring cavity is formed between the water outlet sleeve (6) and the water outlet sleeve (5), a limiting ring is arranged on the inner wall of the water outlet sleeve (5), a limiting ring is arranged on the outer wall of the water outlet sleeve (6), the limiting ring is close to the shell (4), and the limiting ring, An adsorption cavity (14) is formed among the water outlet sleeve (5), the inner water outlet sleeve (6) and the outer wall of the shell (4), two adsorption holes (17) are formed in the front side wall of the shell (4), the adsorption holes (17) are communicated with the adsorption cavity (14) and the adsorption sealing cavity (16), the outer air bag (8) is arranged on the inner wall of the water outlet sleeve (5) and is positioned between the other end of the water outlet sleeve (5) and the limiting ring, the inner air bag (7) is arranged on the outer wall of the inner water outlet sleeve (6) and is positioned between the other end of the inner water outlet sleeve (6) and the limiting ring, two air bag air passages (13) are formed in the wall of the water outlet sleeve (5), one end of each air bag air passage (13) is communicated with the outer air bag (8), the other end of each air bag air passage (13) is communicated with the air bag sealing cavity (15), two air bags (13) are formed in the wall of the inner water outlet sleeve (6), and communicate with two gasbag air flues (13) one-to-one in the wall of the water outlet sleeve (5), gasbag air flue (13) one end and interior gasbag (7) in interior water outlet sleeve (6) wall are linked together, outer gasbag (8) are the annular gasbag, interior gasbag (7) are the annular gasbag, sealing piston (9) are the rubber material, the internal diameter of raceway (11) is less than the internal diameter of connecting pipe (3), the internal diameter of raceway (11) is less than the internal diameter of interior water outlet sleeve (6), sealing cover (20) have been put between push rod (2) and shell (4) lateral wall, the aperture of adsorption hole (17) increases towards the water outlet sleeve (5) direction of going out gradually.
When the sprayer is used, the inner air bag (7) and the outer air bag (8) are in an expansion state in an initial state, when the electric sprayer is connected with the spray connecting pipe (3) of the electric sprayer, a person firstly presses the two pressing buttons (1) by fingers to compress the springs (12) so that the two pressing buttons (1) are relatively retracted to retract the two push rods (2), and further two sealing pistons (9) move towards the middle part of the shell (4), so that the volume in the air bag sealing cavity (15) is increased, the volume of the adsorption sealing cavity (16) is reduced, further the expanded inner air bag (7) on the inner water outlet sleeve (6) is contracted, the expanded outer air bag (8) on the outer water outlet sleeve (5) is contracted, the splicing ring cavity between the inner water outlet sleeve (6) and the outer water outlet sleeve (5) is exposed, and the sprayer connecting pipe (18) is inserted into the splicing ring cavity between the inner water outlet sleeve and the outer water outlet sleeve, and the connecting pipe (3) is screwed with the device connecting screw hole (19) by a person to complete the connection of the electric sprayer and the spraying connecting pipe (3), when spraying is carried out, liquid medicine enters from the connecting pipe (3), the water-spraying agent sequentially passes through the water conveying pipe (11) and the inner water outlet sleeve (6) and enters the sprayer connecting pipe (18) to be sprayed, the inner air bag (7) and the outer air bag (8) clamp the sprayer connecting pipe (18), and the spraying gas connecting pipe (3) is adsorbed by the adsorption cavity (14), so that the sealing effect is good, and the dripping phenomenon cannot be generated;
when the sprayer needs to be disassembled, a person twists the connecting pipe (3) to separate the connecting pipe from the device connecting screw hole (19), and then presses the two pressing buttons (1) to contract the inner air bag (7) and the outer air bag (8) and pull out the sprayer connecting pipe (18), so that the sprayer can be assembled and disassembled in a pressing mode, and the disassembly and the assembly of the sprayer are facilitated for the person;
the design that a plurality of anti-skid convex points are arranged on the pressing button (1) increases the friction force between the hand of a person and the pressing button (1), so that the pressing button is convenient for the person to press and prevent skidding;
the sealing ring (10) is designed as a rubber ring, so that the sealing performance of the sealing piston (9) is improved, and the contraction and expansion of the air bag are prevented from being influenced by pressure leakage;
the design of a sealing sleeve (20) is arranged at the joint of the push rod (2) and the shell (4), so that the sealing property of the shell (4) is enhanced, and the leakage of liquid medicine is avoided;
the inner wall of the water outlet sleeve (5) is provided with a limiting ring, and the outer wall of the inner water outlet sleeve (6) is provided with the limiting ring to limit the inner air bag (7) and the outer air bag (8) so as to avoid influencing the space of the adsorption cavity (14) when the inner air bag expands;
the outer air bag (8) is an annular air bag, the inner air bag (7) is designed to be an annular air bag, when the inner air bag (7) collides with the outer air bag (8), the sprayer connecting pipe (18) can be connected in an annular clamping manner, the air bag can be attached to the sprayer connecting pipe (18), and the sealing performance is better;
the aperture of the adsorption hole (17) is gradually increased towards the direction of the water outlet sleeve (5), so that when the push rod (2) is pushed, the gas in the adsorption hole (17) conveniently flows into the adsorption cavity (14), and the push rod (2) is pushed more labor-saving;
the inner air bag (7) and the outer air bag (8) are matched with the inner water outlet sleeve (6) and the outer water outlet sleeve (5), annular clamping connection can be formed on the sprayer connecting pipe (18) through collision of the inner air bag (7) and the outer air bag (8), the air bags can be attached to the connecting pipe (3), and the sealing effect is better;
the design that the adsorption sealing cavity (16), the adsorption cavity (14) and the air bag sealing cavity (15) are matched with the sealing piston (9) can form negative pressure adsorption force when the inner air bag (7) and the outer air bag (8) expand to clamp and connect the sprayer connecting pipe (18) in an annular mode, and the connection stability is further improved;
the two push rods (2) move outwards, the volume in the air bag sealing cavity (15) is reduced, and the volume of the adsorption sealing cavity (16) is increased, so that the inner air bag (7) and the outer air bag (8) can be inflated, the inner air bag (7) and the outer air bag (8) expand to form annular clamping connection for the sprayer connecting pipe (18), and the air bags are attached to the sprayer connecting pipe (18), so that the sealing performance is better;
when in disassembly, the design of the two press buttons (1) is pressed to enable the two push rods (2) to be retracted, so that the inner air bag (7) and the outer air bag (8) are retracted, the press type disassembly is realized, and the disassembly and the assembly are convenient;
the above embodiments are preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that changes may be made without departing from the scope of the invention, and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
It should be further noted that, while the above specific embodiments are described for simplicity and clarity, only the differences from other embodiments are described, but those skilled in the art should understand that the above specific embodiments are independent technical solutions.
Claims (10)
1. The utility model provides an electric nebulizer is sealing piston structure of attach fitting for connecting tube which characterized by: the top of the concave piston is provided with an upper air pit, the bottom of the concave piston is provided with a water pipe avoiding groove, the cross section of the water pipe avoiding groove is semicircular, the bottom of the concave piston is provided with two adsorption hole avoiding grooves which are respectively positioned at two sides of the water pipe avoiding groove, the bottom of the concave piston is provided with two lower air pits which are respectively positioned at two sides of the water pipe avoiding groove, the outer ring of the concave piston is sleeved with a sealing ring, one section of the sealing ring corresponding to the water pipe avoiding groove is distributed along the arc surface of the water pipe avoiding groove, and the adsorption hole avoiding groove penetrates through the concave piston.
2. The sealing piston structure of the joint for the connecting tube of the electric sprayer according to claim 1, characterized in that the joint for the connecting tube of the electric sprayer comprises a pressing button, a push rod, a connecting tube, a shell, a water outlet sleeve, an inner air bag, an outer air bag, a sealing piston, a sealing ring, a water pipe, a spring, an air bag air passage, an adsorption cavity, an air bag sealing cavity, an adsorption hole and a sealing sleeve, wherein the shell is of a rectangular shell structure, two pairs of push rods are respectively arranged on two opposite surfaces of the shell, one end of the push rod is arranged outside the shell, the other end of the push rod penetrates through the shell and is arranged in the shell, the sealing sleeve is arranged at the joint of the push rod and the shell, the sealing sleeve is a rubber sleeve, the two buttons are respectively fixed on one end of the two pairs of push rods, and a plurality of anti, the two sealing pistons are arranged in the shell and fixedly connected with the other ends of the two pairs of push rods respectively, a sealing ring is sleeved on the sealing piston, an air bag sealing cavity is formed between the sealing piston and the inner wall of the shell, the sealing ring is a rubber ring, a spring is sleeved on the push rods and positioned between the sealing piston and the inner side surface of the shell, one end of the spring is connected with the inner side surface of the shell, the other end of the spring is connected with the sealing piston, a water pipe is arranged in the shell, two ends of the water pipe are arranged on two front and back opposite surfaces of the shell respectively, an adsorption sealing cavity is formed between the water pipe and the sealing piston as well as between the inner wall of the shell, one end of a connecting pipe is arranged on the back side surface of the shell and is communicated with one end of the water pipe, threads are arranged on the outer wall of the connecting pipe, one end of an outer water outlet sleeve is arranged on the front side surface of the shell, and one end of an inner water outlet sleeve is arranged on the front side surface of the shell, and is communicated with the other end of the water pipe, the inner water outlet sleeve is arranged in the outer water jacket pipe, an inserting ring cavity is formed between the inner water outlet sleeve and the outer water outlet sleeve, a limiting ring is arranged on the inner wall of the outer water outlet sleeve, a limiting ring is arranged on the outer wall of the inner water outlet sleeve, the limiting ring is close to the shell, an adsorption cavity is formed among the limiting ring, the outer water outlet sleeve, the inner water outlet sleeve and the outer wall of the shell, two adsorption holes are formed on the front side wall of the shell, the adsorption holes are communicated with the adsorption cavity and the adsorption sealing cavity, the outer air bag is arranged on the inner wall of the outer water jacket pipe and is positioned between the other end of the outer water outlet sleeve and the limiting ring, the inner air bag is arranged on the outer wall of the inner water outlet sleeve and is positioned between the other end of the inner water outlet sleeve and the limiting ring, two air bag air passages are formed in the wall of the outer water outlet sleeve, one end of the air bag air passage is communicated with the outer air bag, and the other end of the air bag sealing cavity is communicated with the air bag sealing cavity, two air bag air passages are formed in the wall of the inner water outlet sleeve and are communicated with the two air bag air passages in the wall of the outer water outlet sleeve in a one-to-one correspondence mode, and one end of the air bag air passage in the wall of the inner water outlet sleeve is communicated with the inner air bag.
3. The structure of the sealing piston of the joint for connecting pipes of electric sprayers as recited in claim 1, wherein the bottom surface of the suction hole avoiding groove is an arc-shaped surface, and the depth thereof is gradually reduced from the front side to the rear side; during the use, the arcwall face can better lead the air, and the resistance is little, and the change of degree of depth makes exhaust effect better, reinforcing ventilation effect.
4. The structure of the sealing piston of the joint for connecting pipes of electric sprayers as claimed in claim 1, wherein said upper air pit has an inverted trapezoidal cross-section and said lower air pit has a trapezoidal cross-section.
5. The structure of the sealing piston of the joint for connecting pipes of electric sprayers as claimed in claim 4, wherein the depth of the upper cavity is smaller than that of the lower cavity.
6. The structure of the sealing piston of the joint for connecting pipes of electric sprayers as claimed in claim 1, wherein said sealing ring is a rubber ring.
7. The sealing piston structure of the connector for the connecting pipe of the electric sprayer as claimed in claim 2, wherein the concave piston is matched with the water pipe avoiding groove, the water pipe avoiding groove at the bottom of the concave piston can be sleeved on the water pipe when the concave piston is pushed to the water pipe, and further, the left hollow parts at two sides of the water pipe inside the shell are fully extruded, so that air in the adsorption sealing cavity is discharged to the maximum degree, and the negative pressure adsorption capacity generated by the adsorption cavity is improved.
8. The structure of the sealing piston of the joint for connecting pipes of electric sprayers as claimed in claim 2, wherein said concave piston is fitted with an upper air pit to improve the propelling effect on the gas and the inflating effect on the inner and outer airbags.
9. The sealing piston structure of the connector for the connecting tube of the electric sprayer as claimed in claim 2, wherein the concave piston is pushed towards the water pipe, and the design that the wall of the water pipe relief groove at the bottom of the concave piston is attached to the outer wall of the water pipe can sufficiently extrude the two sides of the water pipe inside the housing to discharge the air in the adsorption sealing cavity to the maximum extent and improve the negative pressure adsorption capacity generated by the adsorption cavity.
10. The sealing piston structure of the connector for the connecting tube of the electric sprayer as claimed in claim 2, wherein the outer air bag is an annular air bag, the inner air bag is an annular air bag, the sealing piston is made of rubber, the inner diameter of the water pipe is smaller than that of the connecting tube, the inner diameter of the water pipe is smaller than that of the inner water outlet sleeve, a sealing sleeve is arranged between the push rod and the side wall of the housing, and the diameter of the adsorption hole is gradually increased towards the direction of the outer water outlet sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142328.6A CN110822187B (en) | 2019-11-20 | 2019-11-20 | Sealing piston structure of connecting joint for connecting pipe of electric sprayer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142328.6A CN110822187B (en) | 2019-11-20 | 2019-11-20 | Sealing piston structure of connecting joint for connecting pipe of electric sprayer |
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| Publication Number | Publication Date |
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| CN110822187A CN110822187A (en) | 2020-02-21 |
| CN110822187B true CN110822187B (en) | 2021-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911142328.6A Active CN110822187B (en) | 2019-11-20 | 2019-11-20 | Sealing piston structure of connecting joint for connecting pipe of electric sprayer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113623472A (en) * | 2021-08-05 | 2021-11-09 | 上海能禾健康科技有限公司 | Central control equipment for pressure chamber |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2065273U (en) * | 1989-08-04 | 1990-11-07 | 天津市华北氧气厂 | Movable coupling means for high-pressure gas pipeline |
| US6328057B1 (en) * | 2000-04-24 | 2001-12-11 | Lo-Pin Wang | Air valve connection head of hand-held air pump |
| US8002853B2 (en) * | 2003-07-29 | 2011-08-23 | Societe Bic | Hydrogen-generating fuel cell cartridges |
| CN2699101Y (en) * | 2004-04-19 | 2005-05-11 | 吴银辉 | Pipeline coupling device |
| CN105889677A (en) * | 2015-04-02 | 2016-08-24 | 中山市雅西环保科技有限公司 | Water pipe connector with pressing disk |
| CN208778927U (en) * | 2018-08-24 | 2019-04-23 | 宁波拓兴精密铸造有限公司 | A kind of pipeline sealing structure |
| CN209011960U (en) * | 2018-11-14 | 2019-06-21 | 重庆兴锋弘科技有限公司 | A kind of motorcycle engine piston |
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