CN107140302B

CN107140302B - Waterproof sealing sleeve

Info

Publication number: CN107140302B
Application number: CN201710312146.3A
Authority: CN
Inventors: 吴德斌
Original assignee: Jiangsu Hok Seal Material Co ltd
Current assignee: CHANGZHOU RONGHE POLYMER MATERIAL TECHNOLOGY CO LTD
Priority date: 2017-05-05
Filing date: 2017-05-05
Publication date: 2020-04-10
Anticipated expiration: 2037-05-05
Also published as: CN107140302A

Abstract

The invention discloses a waterproof sealing sleeve which comprises an upper sealing sleeve and a lower sealing sleeve, wherein the lower edge of the upper sealing sleeve and the upper edge of the lower sealing sleeve form a spherical sealing sleeve through a sealing clamping piece, the upper sealing sleeve and the lower sealing sleeve are made of composite materials, and the composite materials are composite material layers consisting of a sealing layer, a heat sealing layer and an antistatic layer. Compared with the prior art, the waterproof sealing sleeve provided by the invention adopts an upper clamping seat type sealing structure, a lower clamping seat type sealing structure, multiple protection structures for sealing connection between the clamping arms on the upper clamping seat and the lower clamping seat and the reinforcing clamping grooves and a high-performance sealing sleeve material, so that the prepared sealing sleeve has the excellent characteristics of reasonable structure, good air tightness, puncture resistance, tear resistance, static electricity resistance, high separation, light weight, convenience in sealing and dismounting, maintenance-free performance, durability and the like, can effectively solve the problem of moisture of materials in the long-term sealing and storing process, and is beneficial to improving the quality of sealing, storing and transporting the materials.

Description

Waterproof sealing sleeve

Technical Field

The invention relates to an outer packaging piece for sealing and storing articles, in particular to a waterproof sealing sleeve.

Background

At present, most electronic products generally do not have the waterproof and pressure-proof functions, so that great inconvenience is brought to the use of mobile phones, watches and digital cameras carried by people during activities on water such as swimming, diving, vacation while out, hot spring soaking and the like. The carried electronic product is damaged as soon as being wetted carelessly; in the storage and transportation process of some instruments and articles which are easily influenced by the temperature, humidity, illumination, electromagnetism and the like of the environment, particularly in the severe environment, the properties of the articles can be changed to different degrees, and some articles can even deteriorate or lose efficacy. The protection method is more, wherein the traditional method is to coat butter on the apparatus to isolate the contact of materials and air so as to prevent moisture and rust; in addition, the gas phase rust prevention technology is used for preventing instruments from being affected with damp and rusted, although the protection methods can play a certain protection effect in a short time, the protection methods cannot ensure that the instruments are prevented from being corroded by the environment in the long-term storage process, and the protection methods have various defects of inconvenient operation and the like during large-scale storage and transportation; in addition, some instruments are packaged by aluminum-plastic vacuum envelopes, and the packaging can completely isolate the instruments from the external environment and can effectively prevent the illumination from influencing materials.

The defects of the prior art are as follows: the electronic product is put into a waterproof bag with a valve port and a buckle, the bag opening is buckled on the bag body through repeated winding, and the air in the bag is discharged through the valve port, so that the waterproof bag has the functions of water seepage and water and pressure prevention due to the fact that the sealing is not tight enough; the envelope structure is unreasonable, the sealing performance is poor, so that materials can still be rusted, damaged, deteriorated and the like in the long-term storage and transportation process; secondly, the material for preparing the envelope has a plurality of defects, such as poor puncture resistance and tear resistance, and particularly in a field low-temperature environment, the envelope material has poor flexibility and is easy to damage after being flexibly folded, so that military equipment or materials are not sealed and deteriorated, the storage and transportation safety is poor, and part of equipment is easy to lose efficacy and lose use value under the condition of electromagnetic interference; although the integral airtight sealing equipment has certain effects of moisture protection, sun protection, dust protection, oxidation resistance and the like when instruments and materials are stored, the equipment is poor in air tightness, more in parts and complex in structure, and the processes are complex when the equipment is used and disassembled every time.

Disclosure of Invention

In order to solve the technical problems, the invention provides a waterproof sealing sleeve to solve the problems of complex operation, poor sealing property and poor barrier property of the existing sealing sleeve.

The technical scheme adopted by the invention is as follows: a waterproof type seal cover comprises an upper seal cover and a lower seal cover, and is characterized in that: the lower edge of the upper envelope and the upper edge of the lower envelope are clamped through a sealing clamping piece to form a spherical envelope, the upper envelope and the lower envelope are made of composite materials, and the composite materials are composite material layers consisting of sealing layers, heat sealing layers and antistatic layers;

the sealing layer is composed of the following raw materials in parts by weight: 30-45 parts of high-molecular polyol, 35-55 parts of polyisocyanate, 0.1-1.0 part of catalyst, 2-8 parts of plasticizer, 2-6 parts of antioxidant, 30-50 parts of modified epoxy glue and 10-30 parts of modified biomass material.

Preferably, the modified epoxy glue is obtained by the following method: adding linseed oil and phthalic anhydride into a reaction kettle, heating to 80-110 ℃, controlling the stirring speed to be 300-600 r/min, after the reaction is uniform, reducing the temperature of the system to 70-90 ℃, adding epoxy resin, stirring uniformly, reducing the temperature of the system to 30-40 ℃, dissolving trimethylolpropane tri (2-piperazinylethyl) aminocrotonate into ethyl acetate, dropwise adding into the reaction kettle while stirring, and after dropwise adding, carrying out heat preservation reaction for 15-30min to obtain the modified epoxy adhesive.

The modified epoxy glue has the advantages that the modified epoxy glue contains more aromatic rings and heterocyclic rings, the crosslinking density of a cured product is high, and after the modified epoxy glue is used for modifying polyurethane glue, the cured product has a compact structure and high crosslinking density except the original characteristics.

Preferably, the modified biomass material is obtained by the following method, drying the biomass material until the water content is below 16%, crushing the biomass material into 100-400 mesh powder, placing the powder in hydrochloric acid with the temperature of 80 ℃ and the mol/L, uniformly stirring, soaking for 1-3 h, filtering, drying the collected filter residue in a drying oven with the temperature of 110 ℃ for 24h, roasting in a muffle furnace with the temperature of 650 ℃ for 4h to obtain an ashed biomass material, then carrying out surface treatment on the ashed biomass material by using an N- β - (aminoethyl) -gamma-aminopropyltrimethoxysilane coupling agent to prepare an ethanol solution with the mass percentage of 5% of the coupling agent, uniformly mixing the solution and the ashed biomass material according to the mass ratio of 1: 2, stirring for 2h at the temperature of 50-60 ℃, discharging, removing the ethanol in a vacuum oven with the temperature of 60 ℃, and grinding by using a mortar until no agglomeration exists to obtain the modified biomass material.

The method has the effect that the modified biomaterial effectively improves the comprehensive properties of the polyurethane sealant, such as tensile strength, elongation at break, tear strength and the like, by adding the agriculture and forestry biomaterial surface-treated by the amino silane coupling agent.

Preferably, the epoxy resin is a glycidyl ether type epoxy resin or a novolac type epoxy resin; the high molecular polyol is propylene oxide polyol or polyoxyethylene polyol; the biomass material is straw or husk; the polyisocyanate is hexamethylene diisocyanate or isophorone diisocyanate; the catalyst is dialkyl tin dimaleate or dithiol alkyl tin; the antioxidant is tetrakis [ methylene-3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] methane or dilauryl-3, 3' -thiodipropionate; the plasticizer is dioctyl phthalate or diethylene glycol dibenzoate.

Preferably, the heat-sealing layer is low-density polyethylene or hydrogenated styrene synthetic rubber.

Preferably, the antistatic layer is a polyurethane antistatic agent coating.

Preferably, the thickness ratio of the sealing layer, the heat sealing layer and the antistatic layer is 1: (1-3): (0.5-1.5).

Preferably, the sealing clamping piece comprises an upper clamping seat and a lower clamping seat which are clamped with each other, the upper surface of the upper clamping seat is fixedly connected with the lower edge of the upper envelope, the lower surface of the lower clamping seat is fixedly connected with the upper edge of the lower envelope, the outer side surface of the upper clamping seat and the inner side surface of the lower clamping seat are both connected with clamping arms, the inner side surface of the upper clamping seat and the outer side surface of the lower clamping seat are both connected with reinforcing clamping seats, reinforcing clamping grooves matched with the clamping arms are formed in the reinforcing clamping seats, and the free ends of the clamping arms stretch into the reinforcing clamping grooves to be clamped.

Preferably, the upper clamping seat comprises an upper base and three vertically-arranged upper protruding strips, the upper surfaces of the upper protruding strips are fixedly connected with the upper base, two adjacent upper protruding strips form a clamping groove, the lower clamping seat comprises a lower base and two vertically-arranged lower protruding strips, the lower protruding strips are matched with the clamping grooves, the lower surfaces of the lower protruding strips are fixedly connected with the upper surface of the lower base, the two lower protruding strips are respectively clamped with the corresponding clamping grooves, the upper surface of the upper base is fixedly connected with the lower edges of the upper envelope, and the lower surface of the lower base is fixedly connected with the upper edges of the lower envelope.

Preferably, a circle of protective curtain is arranged around the outer side of the upper envelope, the upper part of the protective curtain is fixedly connected with the outer surface of the upper envelope, and the lower part of the protective curtain is bent towards the lower envelope and covers the sealing clamping piece.

Has the advantages that: compared with the prior art, the waterproof sealing sleeve provided by the invention has the advantages that the structure is simple, the practicability is strong, the application range is wide, the upper and lower clamping seat type sealing structures are adopted to carry out sealing connection between the upper and lower sealing sleeves, so that the primary protection is realized, the clamping arms on the upper and lower clamping seats are in sealing connection with the reinforcing clamping grooves, the sealing quality can be further improved, the secondary protection is realized, the protective curtain on the upper sealing sleeve can further prevent moist gas outside the sealing sleeve from entering the sealing sleeve, the triple protection is realized, the high air tightness of the connection position of the upper and lower sealing sleeves can be kept for a long time, and the long-term safe storage condition is provided for articles. In addition, the envelope is made of the composite material, the composite material is formed by compounding a sealing layer, a heat sealing layer and an antistatic layer, the sealing layer takes high-molecular polyol, polyisocyanate, a catalyst, a plasticizer, an antioxidant, a modified biomass material, a modified epoxy glue and the like as main components, the modified epoxy glue and the modified biomass material are introduced, and the comprehensive properties of the sealant, such as tensile strength, elongation at break, tearing strength and the like, are improved; the invention adopts multiple sealing structures and high-performance envelope materials, so that the prepared envelope has the excellent characteristics of reasonable structure, good air tightness, puncture resistance, tear resistance, static resistance, high barrier, light weight, convenient sealing and disassembly, maintenance-free property, durability and the like, can effectively solve the problem of moisture of materials in the long-term sealing process, and is beneficial to improving the quality of sealing, storing, transporting and transporting the materials.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is a schematic structural view of the sealing clip 3 in fig. 2;

fig. 4 is an enlarged view of a portion a in fig. 2.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1-3, a waterproof sealing sleeve comprises an upper sleeve 1 and a lower sleeve 2, wherein the lower edge of the upper sleeve 1 and the upper edge of the lower sleeve 2 are clamped by a sealing clamping piece 3 to form a spherical sleeve, a protective curtain 4 is arranged around the outer side of the upper sleeve 1, the upper part of the protective curtain 4 is fixedly connected with the outer surface of the upper sleeve 1, and the lower part of the protective curtain 4 is bent towards the lower sleeve 2 and shields the sealing clamping piece 3; the upper envelope 1 and the lower envelope 2 are made of composite materials, the composite materials are composite material layers formed by a sealing layer a, low-density polyethylene and a polyurethane antistatic agent coating, and the thickness ratio of the sealing layer a to the low-density polyethylene to the polyurethane antistatic agent coating is 1: 1: 0.5;

the sealing clamping piece 3 comprises an upper clamping seat 31 and a lower clamping seat 32 which are clamped with each other, the upper surface of the upper clamping seat 31 is fixedly connected with the lower edge of the upper envelope 1, the lower surface of the lower clamping seat 32 is fixedly connected with the upper edge of the lower envelope 2, the outer side surface of the upper clamping seat 31 and the inner side surface of the lower clamping seat 32 are both connected with a clamping arm 3c, the inner side surface of the upper clamping seat 31 and the outer side surface of the lower clamping seat 32 are both connected with a reinforcing clamping seat 3d, a reinforcing clamping groove 3e matched with the clamping arm 3c is arranged on the reinforcing clamping seat 3d, and the free end of the clamping arm 3c extends into the reinforcing clamping groove 3e for clamping; the upper clamping seat 31 comprises an upper base 31a and three vertically arranged upper protruding strips 31b, the upper surfaces of the three upper protruding strips 31b are fixedly connected with the upper base 31a, a clamping groove is formed between every two adjacent upper protruding strips 31b, the lower clamping seat 32 comprises a lower base 32a and two vertically arranged lower protruding strips 32b, the lower protruding strips are matched with the clamping grooves, the lower surfaces of the two lower protruding strips 32b are fixedly connected with the upper surface of the lower base 32a, the two lower protruding strips 32b are respectively clamped with the corresponding clamping grooves, the upper surface of the upper base 31a is fixedly connected with the lower edge of the upper envelope 1, and the lower surface of the lower base 32a is fixedly connected with the upper edge of the lower envelope 2.

The sealing layer a is composed of the following raw materials in parts by mass: 30 parts of propylene oxide polyol, 35 parts of hexamethylene diisocyanate, 0.1 part of dialkyl tin dimaleate, 2 parts of dioctyl phthalate, 2 parts of tetrakis [ methylene-3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] methane, 30 parts of modified epoxy glue and 10 parts of modified biomass material.

The modified epoxy adhesive is obtained by adopting the following method: adding linseed oil and phthalic anhydride into a reaction kettle, heating to 80-110 ℃, controlling the stirring speed to be 300-600 r/min, after the reaction is uniform, reducing the temperature of the system to 70-90 ℃, adding glycidyl ether type epoxy resin, stirring uniformly, reducing the temperature of the system to 30-40 ℃, dissolving trimethylolpropane tri 2-piperazinyl ethyl amino crotonate into ethyl acetate, dropwise adding into the reaction kettle while stirring, and after dropwise adding, carrying out heat preservation reaction for 15-30min to obtain the modified epoxy adhesive.

The modified biomass material is obtained by the following method that straws are dried until the water content is below 16%, the straws are crushed into 100-400 meshes of powder, the powder is placed in hydrochloric acid with the temperature of 80 ℃ and the concentration of 1mol/L and is uniformly stirred, the soaked powder is soaked for 1-3 h, the filtered powder is filtered, the collected filter residue is dried in a drying oven with the temperature of 110 ℃ for 24h, the dried powder is roasted in a muffle furnace with the temperature of 650 ℃ for 4h to obtain straw ash, then the straw ash is subjected to surface treatment by adopting N- β -aminoethyl-gamma-aminopropyltrimethoxysilane coupling agent, the coupling agent is prepared into ethanol solution with the mass percentage of 5%, the solution and the straw ash are uniformly mixed according to the mass ratio of 1: 2, the stirring is carried out for 2h at the temperature of 50-60 ℃, the material is discharged, the ethanol is removed in a vacuum drying oven with the temperature of 60 ℃, and the straw ash.

The epoxy resin is novolac epoxy resin; the high molecular polyol is polyoxyethylene polyol; the biomass material is straw or husk; the polyisocyanate is hexamethylene diisocyanate or isophorone diisocyanate; the catalyst is dialkyl tin dimaleate or dithiol alkyl tin; the antioxidant is dilauryl-3, 3' -thiodipropionate; the plasticizer is diethylene glycol dibenzoate.

The elongation of the sealing connection layer in the embodiment is 523%, the tensile strength reaches 14.1MPa, the shear strength is 6.8MPa, and the tear strength reaches 47.3N/mm.

Example 2

As shown in fig. 1-3, a waterproof sealing sleeve comprises an upper sleeve 1 and a lower sleeve 2, wherein the lower edge of the upper sleeve 1 and the upper edge of the lower sleeve 2 are clamped by a sealing clamping piece 3 to form a spherical sleeve, a protective curtain 4 is arranged around the outer side of the upper sleeve 1, the upper part of the protective curtain 4 is fixedly connected with the outer surface of the upper sleeve 1, and the lower part of the protective curtain 4 is bent towards the lower sleeve 2 and shields the sealing clamping piece 3; the upper envelope 1 and the lower envelope 2 are made of composite materials, the composite materials are composite material layers formed by a sealing layer a, hydrogenated styrene synthetic rubber and a polyurethane antistatic agent coating, and the thickness ratio of the sealing layer a to the hydrogenated styrene synthetic rubber to the polyurethane antistatic agent coating is 1: 3: 1.5;

The sealing layer a is composed of the following raw materials in parts by mass: 45 parts of polyoxyethylene polyol, 55 parts of isophorone diisocyanate, 1.0 part of dithiol alkyl tin, 8 parts of diethylene glycol dibenzoate, 6 parts of dilauryl-3, 3' -thiodipropionate, 30-50 parts of modified epoxy glue and 10-30 parts of modified biomass material.

The modified epoxy adhesive is obtained by adopting the following method: adding linseed oil and phthalic anhydride into a reaction kettle, heating to 80-110 ℃, controlling the stirring speed to be 300-600 r/min, after the reaction is uniform, reducing the temperature of the system to 70-90 ℃, adding novolac epoxy resin, stirring uniformly, reducing the temperature of the system to 30-40 ℃, dissolving trimethylolpropane tri 2-piperazinylethylamino crotonate into ethyl acetate, dropwise adding into the reaction kettle while stirring, and after dropwise adding, carrying out heat preservation reaction for 15-30min to obtain the modified epoxy adhesive.

The modified biomass material is obtained by the following method that firstly, shells are dried until the water content is below 16%, the shells are crushed into powder of 100-400 meshes, then the powder is placed in hydrochloric acid of 1mol/L at 80 ℃ and is uniformly stirred, the soaked powder is soaked for 1-3 h, the filtered powder is filtered, collected filter residues are dried in a drying oven of 110 ℃ for 24h, the dried powder is roasted in a muffle furnace of 650 ℃ for 4h to obtain shell ash, then the shell ash is subjected to surface treatment by adopting an N- β -aminoethyl-gamma-aminopropyltrimethoxysilane coupling agent, the coupling agent is prepared into an ethanol solution with the mass percentage of 5%, the solution and the shell ash are uniformly mixed according to the mass ratio of 1: 2, the mixture is stirred for 2h at 50-60 ℃ and is discharged, ethanol is removed in a vacuum drying oven of 60 ℃, and the mixture is ground by a mortar until no caking exists, and the modified biomass material is obtained.

The elongation of the sealing connection layer in the embodiment is 438%, the tensile strength reaches 12.9MPa, the shear strength is 7.3MPa, and the tearing strength reaches 38.8N/mm.

When the sealing device is used, an article is placed in the lower sealing sleeve 2, the upper sealing sleeve 1 is buckled, the lower convex strips 32b are inserted into the clamping grooves formed between the upper convex strips 31b, then the free ends of the clamping arms 3c extend into the reinforcing clamping grooves 3e for clamping, the protective curtain 4 is put down to shield the sealing clamping piece 3, and the sealing operation is completed; when the envelope is disassembled, the protective curtain 4 is turned up, the free end of the clamping arm 3c is separated from the reinforced clamping groove 3e, then the upper clamping seat 31 is separated from the lower clamping seat 32, the upper envelope 1 is opened, the sealed materials or equipment can be taken out, and the upper envelope and the lower envelope can be stored.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.

Claims

1. A waterproof sealing sleeve comprises an upper sleeve (1) and a lower sleeve (2), and is characterized in that: the lower edge of the upper envelope (1) and the upper edge of the lower envelope (2) are clamped through a sealing clamping piece (3) to form a spherical envelope, the upper envelope (1) and the lower envelope (2) are made of composite materials, and the composite materials are composite material layers consisting of a sealing layer (a), a heat sealing layer (b) and an antistatic layer (c);

the sealing layer (a) is composed of the following raw materials in parts by mass: 30-45 parts of high-molecular polyol, 35-55 parts of polyisocyanate, 0.1-1.0 part of catalyst, 2-8 parts of plasticizer, 2-6 parts of antioxidant, 30-50 parts of modified epoxy glue and 10-30 parts of modified biomass material;

the modified epoxy adhesive is obtained by adopting the following method: adding linseed oil and phthalic anhydride into a reaction kettle, heating to 80-110 ℃, controlling the stirring speed to be 300-600 r/min, after the reaction is uniform, reducing the temperature of the system to 70-90 ℃, adding epoxy resin, stirring uniformly, reducing the temperature of the system to 30-40 ℃, dissolving trimethylolpropane tri (2-piperazinylethyl) aminocrotonate into ethyl acetate, dropwise adding into the reaction kettle while stirring, and after dropwise adding, carrying out heat preservation reaction for 15-30min to obtain the modified epoxy adhesive.

2. The waterproof sealing sleeve according to claim 1, wherein the modified biomass material is obtained by a method comprising the steps of drying a biomass material until the water content is below 16%, crushing the dried biomass material into 100-400 mesh powder, placing the powder in hydrochloric acid of 80 ℃ and 1mol/L, uniformly stirring, soaking for 1-3 h, filtering, drying the collected filter residue in an oven of 110 ℃ for 24h, roasting in a muffle furnace of 650 ℃ for 4h to obtain an ashed biomass material, performing surface treatment on the ashed biomass material by using an N- β - (aminoethyl) -gamma-aminopropyltrimethoxysilane coupling agent to prepare an ethanol solution with the mass percentage of 5%, uniformly mixing the solution and the ashed biomass material according to the mass ratio of 1: 2, stirring for 2h at 50-60 ℃, discharging, removing ethanol in a vacuum oven of 60 ℃, and grinding with a mortar to obtain the modified biomass material.

3. A waterproof sealing glove according to claim 2, characterized in that: the epoxy resin is glycidyl ether type epoxy resin or novolac type epoxy resin; the high molecular polyol is propylene oxide polyol or polyoxyethylene polyol; the biomass material is straw or husk; the polyisocyanate is hexamethylene diisocyanate or isophorone diisocyanate; the catalyst is dialkyl tin dimaleate or dithiol alkyl tin; the antioxidant is tetrakis [ methylene-3- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] methane or dilauryl-3, 3' -thiodipropionate; the plasticizer is dioctyl phthalate or diethylene glycol dibenzoate.

4. A waterproof sealing glove according to claim 1, characterized in that: the heat sealing layer is made of low-density polyethylene or hydrogenated styrene synthetic rubber.

5. A waterproof sealing glove according to claim 1, characterized in that: the antistatic layer (c) is a polyurethane antistatic agent coating.

6. A waterproof sealing glove according to claim 1 or 5, characterized in that: the thickness ratio of the sealing layer (a), the heat sealing layer (b) and the antistatic layer (c) is 1: (1-3): (0.5-1.5).

7. A waterproof sealing glove according to claim 6, characterized in that: the sealing clamping piece (3) comprises an upper clamping seat (31) and a lower clamping seat (32) which are mutually clamped, the upper surface of the upper clamping seat (31) is fixedly connected with the lower edge of an upper sleeve (1), the lower surface of the lower clamping seat (32) is fixedly connected with the upper edge of a lower sleeve (2), the lower clamping seat (32) is connected with the outer side surface of the upper clamping seat (31) and the inner side surface of the lower clamping seat (32) respectively, the inner side surface of the upper clamping seat (31) and the outer side surface of the lower clamping seat (32) are respectively connected with a reinforcing clamping seat (3d), a reinforcing clamping groove (3e) matched with the clamping arm (3c) is formed in the reinforcing clamping seat (3d), and the free end of the clamping arm (3c) extends into the reinforcing clamping groove (3e) for clamping.

8. A waterproof sealing glove according to claim 7, characterized in that: the upper clamping seat (31) comprises an upper base (31a) and three vertically-arranged upper protruding strips (31b), the upper surfaces of the upper protruding strips (31b) are fixedly connected with the upper base (31a), a clamping groove is formed between every two adjacent upper protruding strips (31b), the lower clamping seat (32) comprises a lower base (32a) and two vertically-arranged lower protruding strips (32b), the lower protruding strips are matched with the clamping groove, the lower surfaces of the two lower protruding strips (32b) are fixedly connected with the upper surface of the lower base (32a), the two lower protruding strips (32b) are respectively clamped with the corresponding clamping grooves, the upper surface of the upper base (31a) is fixedly connected with the lower edge of the upper envelope (1), and the lower surface of the lower base (32a) is fixedly connected with the upper edge of the lower envelope (2).

9. A waterproof sealing glove according to claim 1 or 8, characterized in that: a circle of protective curtain (4) is arranged around the outer side of the upper envelope (1), the upper part of the protective curtain (4) is fixedly connected with the outer surface of the upper envelope (1), and the lower part of the protective curtain (4) is bent towards the lower envelope (2) and shields the sealing clamping piece (3).