CN110179503B - A push type adsorber for adsorbing human tissue - Google Patents
A push type adsorber for adsorbing human tissue Download PDFInfo
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- CN110179503B CN110179503B CN201910528476.5A CN201910528476A CN110179503B CN 110179503 B CN110179503 B CN 110179503B CN 201910528476 A CN201910528476 A CN 201910528476A CN 110179503 B CN110179503 B CN 110179503B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00535—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated
- A61B2017/00544—Surgical instruments, devices or methods, e.g. tourniquets pneumatically or hydraulically operated pneumatically
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00969—Surgical instruments, devices or methods, e.g. tourniquets used for transplantation
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Abstract
The invention discloses a pressing type adsorber for adsorbing human tissues, which comprises an air cylinder, a piston assembly and a one-way valve pad, wherein the air cylinder comprises a piston running cavity, a valve cavity and a connecting pipe, the piston running cavity, the valve cavity and the connecting pipe are communicated with each other, the piston assembly is arranged in the piston running cavity in an axially slidable manner, a pressing strip is arranged in the valve cavity, the pressing strip fixes the one-way valve pad at an inlet of the connecting pipe at the bottom surface of the valve cavity, the piston assembly comprises a piston rod, a piston head and a piston, a gas channel is formed by the center of the piston rod in an axial penetrating manner, the piston head is connected to the lower end of the; the piston is sleeved on a piston mounting part between the piston rod and the piston head, the lower end face of the piston is lapped at the top end of the piston head, the upper end face of the piston head is provided with a check valve at the position of the passage, the lower end of a connecting pipe of the inflator is provided with an adsorption head, and the bottom of the piston head is provided with a driving part matched with the driven part, so that the tissue is not damaged.
Description
Technical Field
The invention relates to the technical field of medical equipment application, in particular to a pressing type adsorber for adsorbing human tissues.
Background
With the development of science and the improvement of living standard, people pay more and more attention to self appearance instruments, especially on the aspect of skin, and pay more and more attention to beauty effects, so that medical operations gradually become more refined.
In surgical operations, such as skin grafting operations in hospitals, the skin grafting operations are mainly used for repairing various wounds (such as wounds caused by burns and scalds and trauma, secondary wounds after scar excision and the like), and the clinical application is extremely wide.
The skin donor areas at different positions are selected according to the position and size of the wound surface, and are usually selected at the parts with loose and more concealed skin, such as groin, inner side of upper arm, lower part of clavicle or wrist palm side.
The processing method of the skin piece comprises the following steps: after the skin is taken down, the deep surface of the scissors is flattened, redundant skin is cut off, the skin area can be directly sutured, if the skin is taken as a thick-layer skin, part of dermis left on the wound surface is cut off, and then the wound surface is sutured;
the skin sheet is transplanted to cover the wound surface, the edge is sewed and long lines are left for wrapping;
covering the leather sheet with oil gauze, stacking mesh gauze, uniformly pressing the leather sheet, and tying and fixing with the remained long thread to make the leather sheet closely contact with the pressed area, thereby facilitating the healing of the leather sheet.
In prior art, generally remove the skin piece using tweezers, but current tweezers, when removing the skin piece, need push down the skin piece earlier then for the skin piece clamping-force, the skin piece that is in between two tweezers handles just can be held by tweezers to the middle uplift, but the operation can cause the skin piece unevenness like this, when some skin piece tissues of current tweezers centre gripping simultaneously, because dynamics control is not accurate, the clamping part of tweezers can cause the skin piece tissue to break, be unfavorable for the skin piece healing, influence later stage skin pleasing to the eye.
In a surgical operation of a hospital, for example, in the surgical operation of the hospital, for the excision of a tumor, a blood vessel forceps is generally adopted for lifting, so as to achieve the purpose of taking out the tumor in the surgical treatment, and the defects are as follows: when the vessel forceps are used for clamping, when the clamping jaws are opened, the occupied space is large, the clamping jaws easily cause tissue damage, meanwhile, the tumor body is easily broken due to extrusion, the transfer chance of malignant tumors is increased, and unnecessary pain and heavy economic burden are brought to patients.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a pressing type adsorber for adsorbing human tissues, aiming at the current situation of the prior art, the adsorber can provide corresponding adsorption force according to the thickness and the size of the human tissues, ensure the flatness and the integrity of the human tissues in the process of moving the human tissues, do not damage the human tissues, facilitate the healing of the human tissues in the later period, effectively avoid the problem of dead locking of a spring and effectively control the pressing stroke.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a pressing type adsorber for adsorbing human tissues comprises an air cylinder, a piston assembly and a one-way valve pad, wherein the air cylinder comprises a piston running cavity, a valve cavity and a connecting pipe, the piston running cavity, the valve cavity and the connecting pipe are communicated with each other, the piston assembly is axially and slidably arranged in the piston running cavity, a pressing strip is arranged in the valve cavity, the pressing strip fixes the one-way valve pad at an inlet of the connecting pipe on the bottom surface of the valve cavity, the piston assembly comprises a piston rod, a piston head and a piston, a gas channel is formed in the center of the piston rod in a penetrating mode along the axial direction, the piston head is connected to the lower end of the; the piston is sleeved on a piston mounting part between the piston rod and the piston head, the lower end face of the piston is lapped on the top end of the piston head, the upper end face of the piston head is provided with a check valve at a passage, the lower end of a connecting pipe of the air cylinder is provided with an adsorption head, when the piston keeps static relative to the piston operation cavity, the check valve and the check valve pad are both closed, when the piston moves downwards relative to the piston operation cavity, the check valve is opened, the check valve pad is closed, and the piston operation cavity is allowed to be communicated with the outside through an air channel in the piston rod; when the piston moves upwards relative to the piston operation cavity, the check valve is closed, the check valve pad is opened, and the piston operation cavity is communicated with the connecting pipe; the center of the one-way valve pad is provided with a through hole, a driven piece is arranged at the through hole, a driving piece matched with the driven piece is arranged at the bottom of the piston head, when the piston head moves to the bottom of the piston running cavity, the driving piece drives the driven piece to enable the connecting pipe to be communicated with the gas channel of the piston rod through the driven piece, the driving piece comprises a mounting seat arranged at the bottom of the piston head and a driving magnet arranged in the mounting seat, the driven piece comprises a valve core, a driven magnet, a first spring and a push rod, the lower section of the valve core penetrates through the central hole of the pressing strip and the through hole of the one-way valve pad, the first spring and the driven magnet are sleeved on the periphery of the valve core between the pressing strip and the top of the valve core, the driven magnet is used for opening or closing an air inlet hole on the valve core, one end of the first, the ejector rod is arranged at the center of the top of the valve core and used for opening the check valve.
In order to optimize the technical scheme, the adopted measures further comprise:
the check valve comprises a valve seat, a valve pad and a second spring, wherein the valve seat is fixed with the upper end face of the piston head, one end of the second spring is connected with the valve seat in a matched mode, and the other end of the second spring is connected with the valve pad in a matched mode.
The lower end of the valve core is connected with a pressing sheet, and the pressing sheet and the pressing strip are matched and fixedly clamped with a cushion body of the one-way valve cushion between the pressing sheet and the pressing strip.
The driven magnet and the driving magnet are neodymium iron boron permanent magnets, and the upper end and the lower end of the driven magnet are provided with sealing rings.
The upper end of the piston running cavity of the inflator is provided with a cylinder cover, the center of the cylinder cover is provided with a guide hole, and the upper end of the piston rod penetrates out of the guide hole.
The upper end of the piston rod is connected with a press cap, the periphery of the press cap is provided with a vent hole, and the vent hole is communicated with the air channel.
The piston rod is sleeved with a third spring, one end of the third spring is connected with the press cap in a matched mode, and the other end of the third spring is connected with the cylinder cover in a matched mode.
A circle of flange body is formed above the piston mounting part on the piston rod, the lower end face of the flange body is abutted against the upper end face of the piston, a circle of clamping protrusion is vertically extended downwards on the periphery of the flange body, and a concave ring matched with the clamping protrusion is arranged on the upper end face of the piston.
The adsorption head is composed of a connecting cap and an adsorption cover, the connecting cap is sleeved at the lower end of the connecting pipe, and the adsorption head is made of elastic and transparent silica gel materials.
The periphery of the upper end of the inflator is symmetrically provided with finger ring handles.
The piston rod is provided with a shoulder matched with the inner end surface of the cylinder cover, and the top dead center position of the pressing stroke of the piston rod relative to the cylinder cover is limited.
The connecting pipe is internally provided with a buffer layer, the buffer layer is composed of a plurality of elastic sheets, and one ends of the elastic sheets are fixedly connected with the connecting pipe.
The invention discloses a pressing type adsorber for adsorbing human tissues, which comprises an air cylinder, a piston assembly and a one-way valve pad, wherein the air cylinder comprises a piston running cavity, a valve cavity and a connecting pipe, the piston running cavity, the valve cavity and the connecting pipe are communicated with each other, the piston assembly is arranged in the piston running cavity in an axially slidable manner, a pressing strip is arranged in the valve cavity, the pressing strip fixes the one-way valve pad at an inlet of the connecting pipe at the bottom surface of the valve cavity, the piston assembly comprises a piston rod, a piston head and a piston, a gas channel is formed by the center of the piston rod in an axially penetrating manner, the piston head is connected to the lower end of; the piston is sleeved on a piston mounting part between the piston rod and the piston head, the lower end face of the piston is lapped on the top end of the piston head, the upper end face of the piston head is provided with a check valve at a passage, the lower end of a connecting pipe of the air cylinder is provided with an adsorption head, when the piston keeps static relative to the piston operation cavity, the check valve and the check valve pad are both closed, when the piston moves downwards relative to the piston operation cavity, the check valve is opened, the check valve pad is closed, and the piston operation cavity is allowed to be communicated with the outside through an air channel in the piston rod; when the piston moves upwards relative to the piston operation cavity, the check valve is closed, the check valve pad is opened, and the piston operation cavity is communicated with the connecting pipe; the center of the one-way valve pad is provided with a through hole, a driven piece is arranged at the through hole, a driving piece matched with the driven piece is arranged at the bottom of the piston head, when the piston head moves to the bottom of the piston running cavity, the driving piece drives the driven piece to enable the connecting pipe to be communicated with the gas channel of the piston rod through the driven piece, the driving piece comprises a mounting seat arranged at the bottom of the piston head and a driving magnet arranged in the mounting seat, the driven piece comprises a valve core, a driven magnet, a first spring and a push rod, the lower section of the valve core penetrates through the central hole of the pressing strip and the through hole of the one-way valve pad, the first spring and the driven magnet are sleeved on the periphery of the valve core between the pressing strip and the top of the valve core, the driven magnet is used for opening or closing an air inlet hole on the valve core, one end of the first, the ejector pin is established in case top center department for open the check valve, can provide corresponding adsorption affinity according to human tissue's thickness and size, guarantee human tissue's roughness and completeness at removal human tissue in-process, do not harm human tissue, be favorable to the healing in human tissue later stage, it can effectively avoid the dead problem of spring card, and can the effective control stroke of pressing.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of section I of FIG. 2;
FIG. 4 is an enlarged view of section II of FIG. 2;
FIG. 5 is a cross-sectional view of the piston assembly of the present invention during downward movement;
FIG. 6 is an enlarged view of section III of FIG. 5;
fig. 7 is a schematic perspective view of the piston rod of the present invention.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Fig. 1 to 7 are schematic structural views of the present invention.
Wherein the reference numerals are: the gas cylinder comprises a gas cylinder 1, a piston operation cavity 11, a valve cavity 12, a connecting pipe 13, a cylinder cover 14, a ring handle 15, a piston assembly 2, a piston rod 21, a piston head 22, a piston 23, a gas channel 24, a passage 25, a piston mounting part 26, a third spring 27, a flange body 28, a clamping protrusion 29, a check valve 3, a valve seat 31, a valve pad 32, a second spring 33, a check valve pad 4, a pressing strip 41, a through hole 42, a driven part 5, a valve core 51, a driven magnet 52, a first spring 53, a push rod 54, a gas inlet hole 55, a pressing sheet 56, a sealing ring 57, a driving part 6, a mounting seat 61, a driving magnet 62, an adsorption head 7, a connecting cap 71, an adsorption cover 72, a pressing cap 8, a vent hole.
As shown in fig. 1 to 7:
a pressing type adsorber for adsorbing human tissues comprises an inflator 1, a piston assembly 2 and a one-way valve pad 4, wherein the inflator 1 comprises a piston running cavity 11, a valve cavity 12 and a connecting pipe 13, the piston running cavity 11, the valve cavity 12 and the connecting pipe 13 are mutually communicated, the piston assembly 2 is arranged in the piston running cavity 11 in an axial sliding manner, a pressing strip 41 is arranged in the valve cavity 12, the one-way valve pad 4 is fixed at an inlet of the connecting pipe 13 at the bottom surface of the valve cavity 12 by the pressing strip 41, the one-way valve pad 4 is used for controlling the connecting pipe to be communicated with the piston running cavity, when the gas pressure in the connecting pipe is greater than the gas pressure in the piston running cavity, pad bodies of the one-way valve pads 4 at two sides of the pressing strip 41 are lifted upwards and opened, when the gas pressure in the connecting pipe is less than the gas pressure in the piston running cavity, The piston comprises a piston head 22 and a piston 23, wherein a gas channel 24 is formed in the center of the piston rod 21 in an axial penetrating manner, the piston head 22 is connected to the lower end of the piston rod 21, an internal thread is formed in the piston head 22, an external thread screwed with the internal thread is arranged at the lower end of the piston rod 21, a passage 25 communicated with the gas channel 24 is arranged at the center of the piston head 22, the piston 23 is sleeved on a piston mounting part 26 between the piston rod 21 and the piston head 22, the lower end face of the piston is lapped at the top end of the piston head 22, a check valve 3 is arranged at the position, located at the passage 25, of the upper end, when the piston 23 is held stationary relative to the piston operating chamber 11, the check valve 3 and the check valve pad 4 are both closed, when the piston 23 moves downward relative to the piston operation chamber 11, the check valve 3 is opened and the check valve pad 4 is closed, allowing the piston operation chamber 11 to communicate with the outside through the gas passage 24 in the piston rod 21; when the piston 23 moves upward relative to the piston operation cavity 11, the check valve 3 is closed, the check valve pad 4 is opened, and the piston operation cavity 11 is communicated with the connecting pipe 13; the center of the check valve pad 4 is provided with a through hole 42, the through hole 42 is provided with a driven part 5, the bottom of the piston head 22 is provided with a driving part 6 matched with the driven part 5, when the piston head 22 moves to the bottom of the piston running cavity 11, the driving part 6 drives the driven part 5 to enable the connecting pipe 13 to be communicated with the gas channel 24 of the piston rod 21 through the driven part 5, the driving part 6 comprises a mounting seat 61 arranged at the bottom of the piston head 22 and a driving magnet 62 arranged in the mounting seat 61, the driving magnet 62 is provided with a hole corresponding to the passage 25, the driven part 5 comprises a valve core 51, a driven magnet 52, a first spring 53 and a mandril 54, the lower section of the valve core 51 is a reducing pipe, the lower reducing pipe of the valve core 51 penetrates through the central hole of the pressing bar 41 and the through hole 42 of the check valve pad 4, the first spring 53 and the driven magnet 52 are sleeved on the periphery of the valve core 51 between the pressing bar, one end of a first spring 53 is matched and connected with the top of the valve core 51, the other end of the first spring 53 is matched and connected with a driven magnet 52, a driving magnet 62 and the driven magnet 52 are oppositely arranged in different poles, a mandril 54 is arranged at the center of the top of the valve core 51 and used for opening the check valve 3, when the suction head 7 is attached to human tissues in use, a piston rod is pressed downwards, when the piston moves downwards relative to a piston operation cavity, the check valve 3 is opened, a check valve pad 4 is closed, the piston operation cavity 11 is allowed to be communicated with the outside through a gas channel 24 in the piston rod 21, gas in the piston operation cavity 11 is discharged, the piston rod is pressed every time, the piston moves to the left and the right of the middle lower part of the piston operation cavity, the driving magnet 62 on a driving piece 6 is prevented from driving the driven magnet 52 on the driven piece 5, the piston rod is lifted, when the piston 23 moves upwards relative to the piston operation, the check valve cushion 4 is opened, the piston running cavity 11 is communicated with the connecting pipe 13, the gas in the connecting pipe 13 enters the piston running cavity 11, the adsorption head can adsorb human tissues, the reciprocating times of the piston rod are operated according to the thickness and the size of the human tissues to ensure that proper air pressure is obtained in the connecting pipe, the adsorption head can adsorb the human tissues without damaging the human tissues, when the human tissues are required to be separated from the adsorption head, the piston rod is pressed downwards to ensure that the piston head 22 moves to the bottom of the piston running cavity 11, the ejector rod 54 at the top of the valve core 51 penetrates through the passage 25 on the piston head 22 to open the check valve 3, the driving magnet 62 on the driving piece 6 drives the driven magnet 52 on the driven piece 5 to move upwards to expose the air inlet 55 on the valve core 51, at the moment, the gas passage 24, the valve cavity 12 and the connecting pipe 13 are communicated, the external, thereby no longer adsorb human tissue, alright take off human tissue, can provide the adsorption affinity that corresponds according to human tissue's thickness and size, guarantee human tissue's roughness and completeness at the removal human tissue in-process, do not harm human tissue, be favorable to the healing in human tissue later stage, it can effectively avoid the dead problem of spring clip to can the effective control press the stroke.
In the embodiment, the check valve 3 includes a valve seat 31, a valve pad 32 and a second spring 33, the valve seat 31 is fixed to the upper end face of the piston head 22, one end of the second spring 33 is connected to the valve seat 31 in a fitting manner, and the other end of the second spring 33 is connected to the valve pad 32 in a fitting manner.
In the embodiment, the lower end of the valve core 51 is connected with a pressing sheet 56, and the pressing sheet 56 and the pressing strip 41 are matched and clamped to fix a cushion body of the check valve cushion 4 between the pressing sheet 56 and the pressing strip 41, so that the sealing effect is achieved, and air leakage is avoided.
In the embodiment, the driven magnet 52 and the driving magnet 62 are both neodymium iron boron permanent magnets, and the upper end and the lower end of the driven magnet 52 are both provided with the sealing rings 57, so that the sealing effect is achieved, and air leakage is avoided.
In the embodiment, the cylinder cover 14 is arranged at the upper end of the piston running cavity 11 of the air cylinder 1, the center of the cylinder cover 14 is provided with a guide hole, and the upper end of the piston rod 21 penetrates out of the guide hole to guide the piston rod 21.
In the embodiment, the upper end of the piston rod 21 is connected with the press cap 8, the periphery of the press cap 8 is provided with the vent hole 81, and the vent hole 81 is communicated with the air channel 24, so that the operation is convenient, and the blockage of the air channel 24 in the operation is avoided.
In the embodiment, the piston rod 21 is sleeved with a third spring 27, one end of the third spring 27 is connected with the pressing cap 8 in a matching manner, the other end of the third spring 27 is connected with the cylinder cover 14 in a matching manner, and the piston rod 21 can be automatically reset.
In the embodiment, a ring of flange body 28 is formed on the piston rod 21 above the piston mounting portion 26, the lower end surface of the flange body 28 abuts against the upper end surface of the piston 23, a ring of locking protrusions 29 is vertically extended downwards on the periphery of the flange body 28, and a concave ring adapted to the locking protrusions 29 is arranged on the upper end surface of the piston 23 to play a role in sealing and avoiding air leakage.
In the embodiment, the adsorption head 7 is composed of a connection cap 71 and an adsorption cover 72, the connection cap 71 is sleeved at the lower end of the connection pipe 13, and the adsorption head 7 is made of elastic and transparent silica gel material.
In the embodiment, the finger ring handles 15 are symmetrically arranged on the periphery of the upper end of the air cylinder 1, so that the operation is convenient.
In an embodiment, the piston rod 21 is provided with a shoulder that engages an inner end surface of the cylinder head 14, defining a top dead center position of the pressing stroke of the piston rod 21 relative to the cylinder head 14.
In the embodiment, the buffer layer 9 is disposed in the connecting pipe 13, the buffer layer 9 is composed of a plurality of elastic sheets, and one end of each elastic sheet is fixedly connected with the connecting pipe 13.
The operation method of the invention comprises the following steps: the forefinger and the middle finger are inserted into the ring handle, the adsorption head 7 is attached to the tissue of a human body, the thumb presses the piston rod downwards, when the piston moves downwards relative to the piston operation cavity, the check valve 3 is opened, the check valve pad 4 is closed, the piston operation cavity 11 is allowed to be communicated with the outside through the gas channel 24 in the piston rod 21, the gas in the piston operation cavity 11 is discharged, the piston rod is pressed each time, the piston moves to the middle lower part and the left of the piston operation cavity, the driving magnet 62 on the driving piece 6 is prevented from driving the driven magnet 52 on the driven piece 5, the thumb releases the piston rod, the piston rod 21 can automatically reset under the restoring force of the third spring 27, when the piston 23 moves upwards relative to the piston operation cavity 11, the check valve 3 is closed, the check valve pad 4 is opened, the piston operation cavity 11 is communicated with the connecting pipe 13, the gas in the connecting pipe 13 enters the piston operation cavity, the adsorption head can adsorb human tissues, the reciprocating times of the piston rod are operated according to the thickness and the size of the human tissues to ensure that proper air pressure is obtained in the connecting pipe, the adsorption head can adsorb the human tissues without damaging the human tissues, when the human tissues need to be separated from the adsorption head, the piston rod is pressed downwards to ensure that the piston head 22 moves to the bottom of the piston operation cavity 11, the ejector rod 54 at the top of the valve core 51 penetrates through the passage 25 on the piston head 22 to open the valve pad 32 of the check valve 3, the driving magnet 62 on the driving piece 6 drives the driven magnet 52 on the driven piece 5 to move upwards to expose the air inlet 55 on the valve core 51, at the moment, the air channel 24, the valve cavity 12 and the connecting pipe 13 are communicated, external air enters the connecting pipe 13, the connecting pipe can not adsorb the human tissues any more, the human tissues can be taken down, the piston, the piston rod 21 can automatically reset, at this time, the driven magnet 52 of the driven member 5 is not attracted by the driven magnet 62, and under the action of the restoring force of the first spring 53, the driven magnet 52 automatically resets to close the air inlet hole 55 on the valve core 51, so that the subsequent use is convenient.
While the preferred embodiments of the present invention have been illustrated, various changes and modifications may be made by one skilled in the art without departing from the scope of the invention.
Claims (10)
1. The utility model provides a push type adsorber for adsorbing human tissue, includes inflator (1), piston assembly (2) and check valve pad (4), inflator (1) is including piston operation chamber (11), valve chamber (12) and connecting pipe (13), connecting pipe (13) lower extreme of inflator (1) is provided with adsorption head (7), characterized by: the piston running cavity (11), the valve cavity (12) and the connecting pipe (13) are communicated with each other, the piston assembly (2) is arranged in the piston running cavity (11) in a sliding mode along the axial direction, a pressing strip (41) is arranged in the valve cavity (12), the pressing strip (41) fixes the one-way valve pad (4) at an inlet of the connecting pipe (13) on the bottom surface of the valve cavity (12), the piston assembly (2) comprises a piston rod (21), a piston head (22) and a piston (23), a gas channel (24) is formed by penetrating the center of the piston rod (21) along the axial direction, the piston head (22) is connected to the lower end of the piston rod (21), a passage (25) communicated with the gas channel (24) is arranged at the center of the piston head (22), the piston (23) is sleeved on a piston mounting part (26) between the piston rod (21) and the piston head (22), the lower end face of the piston is overlapped at the top end of the piston head (22), the upper end face of the piston head (22) is provided with a check valve (3) at a passage (25), when the piston (23) is kept static relative to the piston running cavity (11), the check valve (3) and the check valve pad (4) are both closed, when the piston (23) moves downwards relative to the piston running cavity (11), the check valve (3) is opened, the check valve pad (4) is closed, and the piston running cavity (11) is allowed to be communicated with the outside through a gas channel (24) in the piston rod (21); when the piston (23) moves upwards relative to the piston running cavity (11), the check valve (3) is closed, the check valve pad (4) is opened, and the piston running cavity (11) is communicated with the connecting pipe (13); the center of the one-way valve pad (4) is provided with a through hole (42), a driven part (5) is arranged at the through hole (42), a driving part (6) matched with the driven part (5) is arranged at the bottom of the piston head (22), when the piston head (22) moves to the bottom of the piston operation cavity (11), the driving part (6) drives the driven part (5) to enable the connecting pipe (13) to be communicated with the gas channel (24) of the piston rod (21) through the driven part (5), the driving part (6) comprises an installation seat (61) arranged at the bottom of the piston head (22) and a driving magnet (62) arranged in the installation seat (61), the driven part (5) comprises a valve core (51), a driven magnet (52), a first spring (53) and a push rod (54), the lower section of the valve core (51) penetrates through a central hole of the pressing strip (41) and the through hole (42) of the one-way valve pad (4), the first spring (53) and the driven magnet (52) are sleeved on the periphery of the valve core (51) between the pressing strip (41) and the top of the valve core (51), the driven magnet (52) is used for opening or closing an air inlet (55) on the valve core (51), one end of the first spring (53) is connected with the top of the valve core (51) in a matched mode, the other end of the first spring (53) is connected with the driven magnet (52) in a matched mode, the driving magnet (62) and the driven magnet (52) are arranged oppositely in a heteropolar mode, and the ejector rod (54) is arranged at the center of the top of the valve core (51) and used for opening the check valve (3).
2. The depressible adsorber of claim 1 further comprising: check valve (3) include valve seat (31), valve pad (32) and second spring (33), valve seat (31) with the up end of piston head (22) is fixed mutually, the one end of second spring (33) with valve seat (31) cooperation is connected, the other end of second spring (33) with valve pad (32) cooperation is connected.
3. The depressible adsorber of claim 2 further comprising: the lower end of the valve core (51) is connected with a pressing sheet (56), and the pressing sheet (56) is matched with the pressing strip (41) to clamp and fix a cushion body of the one-way valve cushion (4) between the pressing sheet and the pressing strip.
4. The depressible suction apparatus of claim 3 wherein: driven magnet (52) with driving magnet (62) are neodymium iron boron permanent magnetism piece, driven magnet (52)'s upper and lower both ends all are provided with sealing ring (57).
5. The depressible suction apparatus of claim 4 wherein: the cylinder is characterized in that a cylinder cover (14) is arranged at the upper end of a piston running cavity (11) of the air cylinder (1), a guide hole is formed in the center of the cylinder cover (14), and the upper end of the piston rod (21) penetrates out of the guide hole.
6. The depressible adsorber of claim 5 further comprising: the piston rod (21) upper end is connected with presses and emits (8), be equipped with on the periphery of pressing and emitting (8) air vent (81), air vent (81) with gas channel (24) intercommunication.
7. The depressible adsorber of claim 6 further comprising: and a third spring (27) is sleeved on the piston rod (21), one end of the third spring (27) is connected with the pressing cap (8) in a matching manner, and the other end of the third spring (27) is connected with the cylinder cover (14) in a matching manner.
8. The depressible adsorber of claim 7 further comprising: the top that lies in piston installation department (26) on piston rod (21) is formed with a round flange body (28), the lower terminal surface of flange body (28) with the up end of piston (23) is inconsistent, the periphery of flange body (28) is extended perpendicularly downwards and is equipped with round card protruding (29), be equipped with on the up end of piston (23) with the concave ring of card protruding (29) adaptation.
9. The depressible adsorber of claim 8 further comprising: the adsorption head (7) is composed of a connecting cap (71) and an adsorption cover (72), the connecting cap (71) is sleeved at the lower end of the connecting pipe (13), and the adsorption head (7) is made of elastic and transparent silica gel materials.
10. The depressible suction apparatus of claim 9 wherein: the periphery of the upper end of the inflator (1) is symmetrically provided with finger ring handles (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| WO2010068502A1 (en) * | 2008-11-25 | 2010-06-17 | Spiracur Inc. | Device for delivery of reduced pressure to body surfaces |
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| CN86207216U (en) * | 1986-09-19 | 1988-03-16 | 高法宁 | Portable manual reciprocating type vacuum-drawing device |
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| CN110179503A (en) | 2019-08-30 |
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