KR20200014007A - Silicon gun - Google Patents

Abstract

The present invention relates to a silicone gun which effectively prevents separation of a push stick for pushing and discharging silicone, prevents unintended discharge of silicone due to a residual pressure, additionally provides excellent assemblability and smooth operation feeling, prevents generation of noise, improves workability, and is easily held. The silicone gun includes: a housing including therein a first mounting unit, a second mounting unit which is provided under the first mounting unit, a third mounting unit which is provided in rear of the first mounting unit, and through-holes which are formed in a front end of the first mounting unit and a rear end of the third mounting unit, respectively; a push assembly including the push stick which passes through the through-hole, a pressing plate which is provided in a front end of the push stick, and a pushed unit which is installed in the first mounting unit; a handle assembly including a handle which is installed in the second mounting unit and exposed to the outside of the housing, and an operation unit which is coupled to the pushed unit to advance the push stick; and an elastic holder installed in the third mounting unit and including a coupling hole such that the push stick is penetrated and coupled to the coupling hole.

Description

Silicone Gun {SILICON GUN}

The present invention relates to a silicone gun for mounting silicone to apply silicone by pulling on a handle, and more particularly, to prevent the slipping of a push rod for pushing and discharging the silicone, and to prevent unintentional discharge of the silicone due to the residual pressure. The invention relates to a silicone gun which is prevented and further excellent in assembly, which provides a smooth feeling of operation, noise prevention and workability improvement, and is easy to mount.

As is already widely used in the home or construction site, the finishing work of the joints and the edges of the construction object, such as tile construction in the building, exterior tiles, glass construction, wall cladding, etc. are applied by applying silicon.

Here, silicone is classified into a cartridge type and a sausage type. Among the sausage types, silicone is packaged and packaged in various colors in a foil, and is uniformly applied at the boundary of the joint and then cured. It is used in a hermetic form (hereinafter referred to as silicone sausage, which is packaged in foil).

In this silicone coating (or caulking) operation, a silicone gun is used to install consumable silicone so that the silicone can be applied by pulling the handle. The silicone gun is provided at the tip of the operating rod as a forward movement of the operating rod when a certain force is applied through the operating lever. The pressure plate pushes forward the silicon sausage (or cartridge) forcibly, so that the silicon filled in the package is taken out.

Conventional technology related to such a silicon gun, there is a registered Patent No. 10-1663596 (September 30, 2016) (hereinafter referred to as the prior art), the prior art is a tube container such as a laminate tube or a synthetic tube filled with silicon A silicon gun provided to discharge the silicon by advancing the push rod equipped with a pressure plate at the tip as it is mounted on the mounting portion of the gun body and operated with an actuating lever. It characterized in that it comprises an incision groove formed to be introduced into the extrusion hole formed in the tube and the tube container to be overlapped through the extrusion hole in the push rod, through which the easy discharge of silicon, the remaining amount of discharge, the source of the compression action It aims to provide activity and the like.

The prior arts, including the prior art, all have a push rod for pushing and discharging the silicon, which is provided to be freely reversed and exchanged for new silicon sausage when the lock is released.

However, the prior arts, including the prior art, do not provide a solution to the problem that the push rod is unintentionally retracted by the external force.

In addition, as the pressing force of the push rod remains, the silicon discharge is undesirably maintained, causing a part of the silicon to flow in front of the nozzle.

In addition, the necessity of a method for improving assembly performance, improving operation feeling, noise prevention, failure prevention, and mounting ease is reconsidered.

The present invention has been made to solve the above problems, by providing an elastic holder to prevent the pull out of the push rod inside the housing, effectively prevents the pull out of the push rod and inadvertent discharge of the silicon due to the pressure force remaining of the push rod It aims to be able to prevent.

In addition, as the detailed structure of the elastic holder is presented, the assembly property is prevented from being degraded by the provision of the elastic holder, and further, the compromise of the two issues in the trade-off relationship of the stable acceptance of the elastic holder and the improvement of the assembly are provided. It aims to do it.

In addition, it is aimed to increase the working efficiency by smoothly rotating the connection sleeve providing the coupling and disengagement of the silicone acceptor, thereby improving the feeling of operation, blocking the occurrence of noise, and preventing failure in advance.

In addition, it is an object to greatly improve the ease of use by allowing easy mounting when the mounting of the silicon gun inevitably through the mounting means that the mounting / non-mounting is easily switched.

The present invention for the purpose of solving the above problems has the following configuration and features.

The present invention has a first mounting portion, a second mounting portion provided below the first mounting portion, and a third mounting portion provided behind the first mounting portion, and includes a front end of the first mounting portion and the third mounting portion. A push assembly including a housing including a through hole formed at each rear end thereof, a push rod penetrating the through hole, a pressure plate provided at a front end of the push rod, and a push portion provided in the first mounting part, and installed in the second mounting part. A handle assembly including a handle exposed to the outside of the housing and an operating part coupled to the pusher to advance the pusher, and an elastic holder including a coupling hole installed in the third mounting part and through which the pusher is coupled. .

In addition, the elastic holder includes a narrow first body, a wide second body provided in front of the first body, the screw corresponding portion provided on the boundary of the first and second body and having a shape corresponding to the screw wall portion The screw counterpart may include one or more stepped portions to increase in size toward the upper side based on the insertion state of the elastic holder.

In addition, the housing further comprises a fourth mounting portion provided in front of the first mounting portion, the fourth mounting portion is provided with a coupling ring for fixing the connection sleeve is coupled to the silicone receptor coupled to the front of the housing, A bearing may be provided at a coupling portion of the connection sleeve and the coupling ring.

It further comprises a mounting means provided on the housing, the mounting means is provided with a hook member having a mounting portion, a slide groove provided in the lower portion of the hook member, a stopper provided in the slide groove and the upper housing And a slide protrusion inserted into the slide groove, wherein the slide protrusion includes a first inclined portion having a backward upward slope and a second inclined portion provided behind the first inclined portion and having an inclination angle smaller than that of the first inclined portion. It can be characterized by.

The present invention having the above-described configuration and features effectively prevents the omission of the straw and prevents unintentional discharging of silicon due to the remaining pressing force of the straw, which is a trade-off of stable acceptance and improved assembly of the elastic holder provided therefor. Provides a compromise solution for the two issues in the relationship, improves the feeling of operation, prevents noise and prevents troubles by making the connecting sleeve rotate more smoothly, and facilitates mounting of the silicone gun. It has the effect of greatly improving the ease of use.

1 is a perspective view showing the appearance of the present invention.
Figure 2 is an exploded view showing a part of the housing in the perspective view of Figure 1;
3 is a view showing an embodiment of a coupling structure of an elastic holder;
4 shows a specific embodiment of a housing;
5 illustrates a specific embodiment of a push assembly and a handle assembly.
6 is a view showing a specific embodiment of an elastic holder;
7 is a view showing a specific embodiment of the mounting means.

Since the present invention may be modified in various ways and have various forms, embodiments (or embodiments) will be described in detail in the text. However, this is not intended to limit the present invention to the specific form disclosed, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

The terminology used herein is for the purpose of describing particular embodiments (suns, aspects, and embodiments) (or embodiments) only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms “comprises” or “consists” are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described on the specification, but one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, parts or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art. Terms such as those defined in the commonly used dictionaries should be construed as having meanings consistent with the meanings in the context of the related art, and shall not be construed in ideal or excessively formal meanings unless expressly defined in this application. Do not.

In the present specification, the first to the second and the second and the like are only referred to to distinguish between the different components, and are not limited to the order of manufacture, and their names are used in the description and the claims. It may not match.

The present invention relates to a silicone gun that effectively prevents the push-up of the push rod to push out the silicone, further provides excellent assembly properties, provides a smooth operation feeling, and is easy to mount.

Hereinafter, a silicon gun according to the present invention will be described in detail with reference to the accompanying drawings.

Prior to the detailed description of the present invention, silicone is divided into a relatively low-capacity cartridge type (about 270 ~ 300ml) and a large-capacity sausage type (about 500ml), the present invention will be described mainly with a silicone gun applied to the sausage type do. In addition, the sausage type refers to a form in which silicon is wrapped in a foil (Foil), hereinafter referred to as 'silicon' or 'silicone sausage'.

As shown in Figs. 1 to 3, the apparatus is provided with a housing 1 having a mounting portion therein, a push assembly 2 installed in the mounting portion and provided in front of the housing 1, a mounting portion mounted in the housing ( Handle assembly (3) provided in the lower part of 1), and is installed in the mounting portion and includes a holder for preventing the push-up 21.

For each configuration, the housing 1 has a mounting part therein. Specifically, as shown in FIG. 4, the mounting part has a central first mounting part 11 and a second mounting part provided below the first mounting part 11. 12, the third mounting portion 13 provided at the rear of the first mounting portion 11 is included. The first to third mounting parts 11 and 12 and 13 are portions to which the push assembly 2, the handle assembly 3, and the holder are coupled, respectively.

In addition, the housing 1 includes a through hole (h) formed at the front end of the second mounting portion 12 and the rear end of the third mounting portion 13, respectively, the through hole (h) is a pusher 21 of the push assembly (2) The insertion hole h is configured to have an inner diameter corresponding to the outer diameter of the push rod 21.

Next, the push assembly 2 is configured to pressurize the silicon contained in the silicon container 5 by the operation of the handle assembly 3, the push rod penetrating the through hole (h) as shown in Figs. 21, a pressing plate (not shown) provided at the front end of the push rod 21, and a pusher part 23 provided at the first mounting part 11.

Push rod 21 is advanced by the operation of the handle assembly (3), it is preferable that a predetermined gripping portion for gripping is provided at the rear end of the push rod 21. The pressure plate presses the rear end of the silicon so that the silicon can be discharged when the pusher 21 advances by the operation of the handle assembly 3. And the pusher 23 is a configuration that allows the operation of the handle assembly 3 and the operation of the push assembly (2) to be interlocked. The detailed configuration and structure of the jungle 23 will be described later.

Next, the handle assembly 3 is configured to switch the user's pulling operation to the forward operation of the push assembly 2, and is installed in the second mounting portion 12, as shown in Figs. (1) includes an operating part 32 coupled to the handle 31 and the pusher 23 exposed to the outside to advance the pusher 21.

The operation unit 32 is configured to switch the pulling operation of the handle 31 to the forward operation of the pusher 21 by interlocking with the pusher 23 of the push assembly 2, and a detailed configuration and structure will be described later. Let's do it.

Next, the elastic holder 4, which is a key feature of the present invention, is configured to prevent the rod 21 from being pulled out, and is installed in the third mounting portion 13 and the coupling hole 40 through which the rod 21 is penetrated. It includes.

The elastic holder 4 should be made of a material having elasticity by itself, and the shape of the elastic holder 4 is deformed at the moment when the omission of the pusher 21 is restored to its original shape and the elasticity of the pusher 21 with the outer surface The detachment of the push rod 21 is effectively prevented by the friction between the inner surface of the through hole h side of the holder 4. Of course, it is obvious that the holder should be fixedly accommodated inside the housing 1 by the mounting structure of the holder in the assembled state of the housing 1.

The present invention as described above has the effect that the omission of the straw 21 through the configuration of the elastic holder (4) effectively prevented. In addition, the elastic holder 4 serves to hold the pusher 21 even when the pusher 21 is moved forward, so that the silicon is moved toward the nozzle front due to the remaining pressing force of the pusher 21 despite stopping the application of the pusher 21. It also has the effect of preventing the discharge.

Hereinafter, more detailed and additional features of the present invention will be described.

First, the apparatus is composed of a first powder 1A and a second powder to which the housing 1 is coupled to each other, and the first and second powders are each based on the upright state of the apparatus (upright in use). It can be configured to correspond to the left and right of 1). Although only the first powder 1A is shown in the accompanying drawings, it is very obvious that the configuration of the second powder is inferred through the drawings.

This powder construction provides ease of assembly of the apparatus, and the silicon gun embeds each component on the side of the first powder 1A of the housing 1, and utilizes a screw or the like to make the first powder 1A and the second powder. Is completed by combining. This feature relates to the wall portion for screws described below.

In addition, as shown in FIG. 4, the housing 1 further includes a fourth mounting portion 14 provided at the front of the first mounting portion 11, and the fourth mounting portion 14 is disposed at the front of the housing 1. A coupling ring 7 is provided to fix the connecting sleeve 6 to which the bonded silicone receptor 5 is coupled. A more detailed description thereof will be described later.

Hereinafter, the pushing part 23 of the push assembly 2 and the operating part 32 of the hand assembly will be described in detail.

Referring to FIG. 5, the apparatus according to the embodiment includes a support block 231 and a pusher 21 in which the pusher 23 provided in the first mounting part 11 of the housing 1 is coupled to the pusher 21. Positioning block 232 coupled to and spaced apart in front of the brace block 231, between the brace block 231 and the positioning block 232, the tangji spring 233 coupled to the pusher 21 And a return spring 234, one end of which is fixedly supported and the other end of which is in contact with the positioning block 232. In particular, it is preferable that the weight of the positioning block 232 is greater than the weight of the support block 231 for stability of operation, and the elastic force of the return spring 234 is burned to properly support the backward of the positioning block 232. It is preferable that the spring 233 is configured to be larger than the elastic force.

In addition, as shown in FIG. 5, the apparatus according to the embodiment has an axle 321 in which an operating part 32 provided on the second mounting part 12 of the housing 1 is provided on the handle 31. ), The pressing shaft 323 is provided at the end of the rotating shaft 322 and the handle 31 coupled to the shaft mounting body 321, the rear end is in contact with the support block 231, the front end is in contact with the positioning block 232. It includes. Here, the pressing body 323 may have a variety of shapes, the pressing body 323 is to be disposed toward the end side than the shaft mounting body 321 based on the longitudinal direction of the handle 31.

Referring to the operation process of the pusher 23 and the operation unit 32 having the above configuration, when the handle 31 is pulled by the user's grip, the handle 31 rotates around the rotation axis, the handle The pressing body 323 pushes the positioning block 232 forward by the rotation of the 31, and the pusher 21 advances. At this time, the position of the bracing block 231 is fixed by the finger spring 233, the finger spring 233 is extended by the advance distance of the positioning block 232. After that, when the pull of the handle 31 is released, the positioning block 232 is reversed by the elasticity of the return spring 234, the tangent spring 233 is compressed, and the pusher 21 is moved forward. maintain. In addition, in the state where the pulled state of the handle 31 is maintained, the interference between the positioning block 232 and the pressing body 323 does not occur, so that the pusher 21 can be freely moved backward and backward.

The structure of the push assembly 2 and the handle assembly 3 is particularly meaningful in that all configurations are built into the housing 1, which is conventionally used for the advancement of the push rod 21 (or a corresponding configuration). Although some of the components are exposed to the outside, there is a problem that the risk of failure and aesthetics are hindered. However, in the present invention, all the components of the push assembly 2 and the handle assembly 3 (except the handle 31) may be disposed in the housing ( 1) By providing a structure that can be embedded inside, it can eliminate the fear of failure and provide a neat appearance.

Hereinafter, specific embodiments of the elastic holder 4 will be described.

Referring to FIG. 6, the device according to the embodiment of the present invention has an elastic holder 4 having a narrow first body 41 and a wide second body 42 provided in front of the first body 41. It is characterized in that it comprises a screw counterpart 43 provided on the boundary of the second body (41, 42) and having a shape corresponding to the wall portion for the screw.

As shown in FIG. 6, the first body 41 has a relatively small width and corresponds to the rear of the elastic holder 4 based on the installation direction. In addition, the second body 42 has a larger width than the first body 41 and corresponds to the front of the elastic holder 4 based on the installation direction. In other words, the elastic holder 4 has a structure of an all-optical narrow view having a large front width and a small rear width, and the third mounting portion 13 of the housing 1 in which the elastic holder 4 is installed. It may also have a corresponding shape.

In FIG. 3 again, the configuration of the screw wall portion (reference numeral) for the coupling of the housing 1 can be confirmed. Such a screw wall portion is a configuration that must be provided for the assembly of the housing 1. In particular, in view of the fact that the holder plays a role of preventing the detachment of the push rod 21, the holder is preferably accommodated in a fixed state without shaking. Therefore, the screw counterpart 43 allows the holder to be accommodated in the third mounting part 13 in a state in which the play is minimized, and further has the effect of providing the ease of assembly.

In addition, as shown in FIG. 6, the screw counterpart 43 may include one or more stepped portions 430 to increase in size toward the upper side based on the inserted state of the elastic holder 4. It is characterized by the presence.

Looking at the insertion state of Figure 3, it can be seen that Figure 6 is shown the same as the insertion state, and looking at Figure 6, the screw counterpart 43 is increased in size by the two stepped 430 upwards can confirm. In particular, FIG. 6 also shows that two stepped structures including the first stepped 431 and the second stepped 432 are illustrated.

Therefore, the screw counterpart 43 has the smallest size at the bottom, and the size is first expanded by the first step 431 toward the top, and the size is second by the second step 432 toward the top. Is expanded.

The step 430 may be provided in one or a plurality, the number of the provided may be selected by the operator, the number of the provided is preferably two.

Through the configuration of the screw counterpart 43 having the stepped portion 430, the present invention provides the saddle-receiving and assembly ease of the elastic holder 4 at the same time, the screw counterpart 43 of the lower side is Since it has a shape and a size corresponding to the outer diameter of the wall portion used, the clearance between the elastic holder 4 and the third mounting portion 13 is minimized, so that stable accommodation is achieved, and at the same time, the first and second stepped portions 431 and 432 are provided. As a result, the screw counterpart 43 on the upper side has a large size so that the screw wall portion on the second powder side can be accessed without interference from the screw wall portion on the first powder 1A side when the second powder is joined. The ease of assembly is improved. For example, when the stepped portion 430 is poor, there is a high possibility that a problem arises that the assembly of the screw wall part on the second powder side is not smoothly made by the screw counterpart 43.

Next, the apparatus 1 further includes a fourth mounting portion 14 provided at the front of the first mounting portion 11, and the fourth mounting portion 14 has silicon coupled to the front of the housing 1. A coupling ring 7 is provided to fix the coupling sleeve 6 to which the receptor 5 is coupled, and a bearing b may be provided at the coupling portion of the coupling sleeve 6 and the coupling ring 7. It features.

Description of the fourth mounting portion 14 of the housing 1 has been described above, which may be referred to FIG. 4. The fourth mounting portion 14 is provided in front of the first mounting portion 11, and has a shape corresponding to the outer shape of the coupling ring 7 for insertion of the coupling ring 7.

The connecting sleeve 6 is a connection configuration for coupling the silicone receptor 5 to the front of the housing 1, as can be seen in Figure 2 the silicone receptor 5 is coupled to the connecting sleeve 6 It may include a body 51 and a head 52 coupled to the front of the body 51. Silicon is embedded in the body 51, and the head 52 is provided to prevent detachment of the embedded silicon, and the ejection hole is provided in the head 52 to apply silicon.

In FIG. 5, the configuration of the connecting sleeve 6, the coupling ring 7, and the bearing b can be confirmed. The present invention includes a bearing b at the coupling portion of the coupling sleeve 6 and the coupling ring 7. As a result, the rotation of the connecting sleeve 6 for separating the silicon acceptor 5 from the connecting sleeve 6 is smoothly performed during the replacement of the silicon.

The above-mentioned bearing (b) can be used a variety of ball bearings, rolling bearings, etc., thereby providing a smooth operation feeling.

In addition, the bearing b prevents the noise generated when the connecting sleeve 6 rotates and provides a failure prevention.

Furthermore, while the conventional silicone gun had to hold the sleeve by hand, the device does not need to grip the connecting sleeve 6 by the provision of the bearing b, which makes it inconvenient to work on narrow corners. It has the advantage of being able to work relatively easily in posture.

Next, a specific embodiment of the mounting means 8 of the present invention will be described.

It is obvious that the silicone gun is used at the site of silicone application, where the application of silicone can be done in a variety of field situations, for example by installing an iron structure to apply the silicon to a high place and applying the silicon on it. At the same time, you need to place the silicon gun somewhere in your hand, such as when you need to do other tasks such as tape masking, backing up, silicon removal when rebuilding silicon, or when the operator needs to carry a tool other than the silicon gun. This is about to happen.

The present invention is to provide a method for improving the convenience of work by providing a unique mounting means (8) to provide a convenience for the situation where the silicon gun must be inevitably somewhere as described above.

As shown in FIG. 7, the apparatus further includes a mounting means 8 provided on the housing 1, and the mounting means 8 includes a hook member 81 having a mounting portion. A slide groove 82 provided below the hook member 81, a stopper provided inside the slide groove 82, and a slide protrusion 83 provided above the housing 1 and inserted into the slide groove 82. It can be characterized by.

Referring to each configuration with reference to Figure 7 [A], the hook member 81 has a hook portion of the hook structure that can be hooked to the mounting target, the mounting target may be variously selected according to the site situation.

The slide groove 82 is provided below the hook member 81, and includes a space part for accommodating the slide protrusion 83 and a separation prevention part of the step 430 structure provided under the space part.

Although the stopper is not shown in the drawings, it is provided to prevent separation due to over-insertion of the slide protrusion 83, and is provided inside the slide groove 82. Is nothing.

The slide protrusion 83 is inserted into the slide groove 82, more specifically, is inserted into the space portion, and the engagement with the slide groove 82 is maintained by the separation prevention portion.

Mounting means (8) having the above configuration and features can easily switch the mounting / non-curing state of the silicon gun by the sliding coupling structure provides an effect of greatly improving the ease of use.

In addition, as shown in FIG. 7B, the apparatus is provided with a first projection 831 and a rear of the first inclination portion 831 having a rearward inclination with a slide projection 83 and a first inclination. It may include a second inclined portion 832 having a smaller inclination angle than the inclined portion 831.

Both the first inclined portion 831 and the second inclined portion 832 provide a smooth sliding operation by minimizing a jam when the first inclined portion 831 and the second inclined portion 832 are inserted into the slide groove 82. Because of the large inclination angle is relatively excellent in preventing the latch, the second inclined portion 832 has a relatively excellent inclination prevention because of the small inclination angle.

On the other hand, in the present invention, considering that the housing 1 is exposed to various work sites as it is, there is room for damage caused by various factors such as impact, scratch, corrosion, deterioration. The present invention is characterized in that it can further include a protective film provided by the application and curing of the protective agent on the outer surface of the housing (1) to solve this problem.

The protective film may be provided in a configuration exposed to the outside in addition to the housing 1, for example, the handle 31, the outer surface of the silicone container 5, the outer surface of the mounting means 8, and the like.

Such a protective film should be easily provided, have excellent adhesion, and further have improved antiseptic, fire resistance, and rust resistance, and in addition, it is necessary to have improved manufacturability due to rapid curing and improved water resistance through water repellent treatment. .

The protective agent composition for the protective film of the present invention to provide the above effect is 100 parts by weight of phenoxyethyl acrylate, 150 to 250 parts by weight of polyester acrylate, 30 to 40 weight by weight of 2,4,6-trimethylbenzoyldiphenylphosphine oxide Part, 50 to 100 parts by weight of polyvinylacetate, 1 to 5 parts by weight of 2-methyl-4-isothiazolin-3-one, 25 to 35 parts by weight of silica aerogel, 10 to 3-glycidoxypropylmethyldimethoxysilane 25 parts by weight, sodium silicate 30-50 parts by weight, hydroxyethyl acrylate 10-70 parts by weight, ethyl silicate 30-60 parts by weight, ethylenediaminetetraacetate 1-5 parts by weight, tetraethoxysilane 0.5-2.5 parts by weight Contains wealth.

For each composition, first, (Phenoxyethylacrylate) phenoxyethylacrylate was used as an acrylate monomer, and it was confirmed that it was most suitable for the present composition among various acrylate monomers because it had proper flowability and excellent heat resistance characteristics. The amount of each composition to be described later will be described based on 100 parts by weight of this phenoxyethyl acrylate.

Next, (Polyesteracrylate) polyester acrylate is used as an acrylate oligomer, and it was found to be the most suitable for the present composition among various acrylate oligomers because of its proper adhesiveness, strength and durability. It is preferable that 150 to 250 parts by weight of the polyester acrylate is used, but when used outside the numerical range, it was confirmed that the adhesion, strength and durability of the protective film are significantly reduced. As a result of repeated experiments, the most preferable amount was found to be 200 parts by weight.

Next, (2,4,6-Trimethylbenzoyldiphenylphosphineoxide) 2,4,6-trimethylbenzoyldiphenylphosphine oxide is used as an initiator, and when used with the above-mentioned phenoxyethyl acrylate and polyester acrylate among various initiators It was confirmed that the best physical properties can be secured. Such 2,4,6-trimethylbenzoyldiphenylphosphine oxide is preferably used 30 to 40 parts by weight, it is difficult to form a sufficient radical when used less than 30 parts by weight, when used in excess of 40 parts by weight This remarkably lowered, and noticeable drop in physical properties was observed especially when used outside the composition range in curing time and flowability. As a result of repeated experiments, the most preferable amount was found to be 35 parts by weight.

Next, (Polyvinylacetate) polyvinylacetate is used as a fixing agent to improve the fixing strength of the protective agent, the amount is preferably 50 to 100 parts by weight. For example, when used in less than 50 parts by weight, there is a problem that the protective agent is not fixed well due to the decrease in flexibility of the coating film, there is a problem that the dryness of the protective agent is lowered when used in excess of 100 parts by weight. As a result of repeated experiments, the optimum amount of use was found to be 70 parts by weight.

Next, (2-Methyl-4-Isothiazoline-3-one) 2-methyl-4-isothiazolin-3-one is used as an antiseptic agent, and the amount thereof is preferably 1 to 5 parts by weight. When used out of the composition range it does not appear a distinct problem, but repeated results showed the most significant effect in the composition range.

Next, (Silica Aerogel) silica airgel is a composition that serves to enhance the fire resistance and heat insulation based on the diffused pores, it is used as a fire-retardant and heat insulation. This silica airgel is a material with a large specific surface area having a porosity of 80 to 99.87% and a pore size of 1 to 50 nm. It is a transparent ultra low density material, and has high transparency and low thermal conductivity, so it has high potential as a transparent insulating material. Have Since the silica airgel absorbs moisture, the gel structural properties and physical properties are lowered, so that the surface is preferably hydrophobized, and the amount thereof is preferably 25 to 35 parts by weight. When used out of the composition range there is a problem that can not ensure the optimum physical properties, especially when used in excess of 35 parts by weight will cause a problem of economic deterioration. As a result of repeated experiments, it was confirmed that the most preferable amount was 30 parts by weight.

Next, (3-Glycidoxypropylmethyldimethoxysilane) 3-glycidoxypropylmethyldimethoxysilane is used as a coupling agent to improve the physical properties of each composition, especially polymer compositions to improve the physical properties, the amount is 10 to 25 parts by weight desirable. When used outside the composition ratio, the binding force between the compositions is not effectively expressed. As a result of repeated experiments, the most preferable amount was found to be 20 parts by weight.

Next, (Sodiumsilicate) sodium silicate is added as a rust inhibitor, and has the advantage of being relatively economical among various rust inhibitor compositions. The preferred amount of sodium silicate is 30 to 50 parts by weight, for example, when used less than 30 parts by weight, it is difficult to guarantee the rust prevention ability, and when used in excess of 50 parts by weight, there is a problem that the economic efficiency is lowered. The optimum amount of use considering both economical and rustproofing capacity is 40 parts by weight.

Next, (Hydroxyethylacrylate) hydroxyethyl acrylate is added as an adhesion promoter, and hydroxyethyl acrylate has been employed in particular because of its excellent curability. The preferred amount of use is 10 to 70 parts by weight, for example, when used less than 10 parts by weight, the adhesion promoting effect is not properly expressed, when used in excess of 70 parts by weight there is a problem that the toxicity is increased to increase the volatility. As a result of repeated experiments, it was confirmed that the most preferable amount was 40 parts by weight.

Next, (Ethylsiliconate) ethylsiliconate is added as a strength enhancer to increase the corrosion resistance, impact resistance, scratch resistance (tolerant to scratch / scratch) and surface hardness of the protective film, and the average particle size is 10 to 20 nm. Preferably, the usage-amount is 30-60 weight part. For example, when used in less than 30 parts by weight, sufficient strength cannot be obtained, and when used in excess of 60 parts by weight, the possibility of cracking after construction increases due to excessive rigidity. As a result of repeated experiments, it was confirmed that the most preferable amount was 40 parts by weight.

Next, (Ehtylenediaminetetracetate) ethylenediaminetetraacetate is used as an adsorbent strengthening agent, and enhances the adsorbing force during the initial construction of the protective film, resulting in improved adhesion. The preferred amount of ethylenediaminetetraacetate is 1 to 5 parts by weight, and when used out of the above composition range, the adsorption enhancing effect is not properly expressed.

Next, (Tetraethoxysilane) tetraethoxysilane is hydrolyzed and condensed to add watertightness and water repellency of the protective film and is added to improve the antiseptic property, and it is preferable to use 0.5 to 2.5 parts by weight, when used in less than 0.5 parts by weight. Water resistance, water repellency and antiseptic improvement effect is insignificant, when used in excess of 2.5 parts by weight there is a problem that the workability is reduced. As a result of repeated experiments, the most preferable amount was found to be 2 parts by weight.

The protective film of the present invention having the above constitution and composition range is not required to limit the drying temperature separately, and since the curing is performed quickly without flowability, the protective film is easily provided, and further, excellent adhesion and fire resistance and fire resistance are improved. It has the advantage that it is provided with rust prevention property, and also excellent in water resistance.

EXAMPLE

In order to test the effects of the protective composition and the protective film formed thereby according to the present invention, the protective agents (500g) mixed in each of the composition ratios of Examples 1 to 3 were applied to the test blocks, respectively, and cured by UV curing. After the protective film was formed on the outer surface of the block, experiments were conducted according to Experimental Examples 1 to 4 using the respective test blocks.

[Component List]

Experimental Example 1

Examples 1 to 3 As a result of measuring the UV curing time of each test block, Example 1 was measured for about 1 minute, Example 2 for about 1 minute and 30 seconds, and Example 3 for 2 minutes. Therefore, the total curing time of Examples 1 to 3 all belong to a short side, and in particular, all three examples were able to confirm that rapid curing proceeded without flowability.

Experimental Example 2

As a result of performing cross-cut to each test block of Examples 1 to 3, all of Examples 1 to 3 did not peel at all within 1% of an error range (less than 1% of peeling rate).

Subsequently, as a result of scraping through a scratcher having an irregular protrusion on the outer surface of each test block of Examples 1 to 3, most of the protective film was broken, and in Examples 2 and 3, the error range was 5%. No breakage of the protective film occurred in the interior (less than 5% of the failure rate).

Therefore, it was confirmed that Examples 2 and 3 are superior to the protective film in the adhesion and strength compared to Example 1.

Experimental Example 3

Examples 1 to 3 Experiments of directly injecting a flame through a torch for 10 minutes on the outer surface of each test block resulted in some combustion and melting in Examples 1 and 2, but some sooting in Examples 3. Only the protective film was not burned at all.

Therefore, it was confirmed that Example 3 is excellent in fire resistance and heat insulation compared to Examples 1 and 2.

Experimental Example 4

Examples 1 to 3 After spraying water on the outer surface of each test block for 6 hours, after removing the protective film and inspecting the internal invasiveness of the test block, a small amount of moisture was detected in Examples 1 and 2, Example 3 Moisture was not detected at all.

Therefore, it was confirmed that Example 3 is excellent in water resistance compared to Examples 1 and 2.

For the configuration and operating principle of the silicon gun, which are not described above, reference may be made to conventional techniques and common sense of the art.

In addition, the present invention described with reference to the accompanying drawings may be variously modified and changed by those skilled in the art, such modifications and variations should be construed as being included in the scope of the present invention.

1: housing
11: first mounting part 12: second mounting part
13: 3 mounting part 14: 4 mounting part
h: through
2: push assembly
21: pusher 23: jungle
3: handle assembly
31: handle 32: operating part
4: elastic holder
40: coupling hole 41: the first body
42: second body 43: screw counterpart
430: step 431, 432: first and second step
5: silicone receptor
6: connecting sleeve
7: coupling ring
8: mounting means
81: hanger member 82: slide groove
83: slide projection

Claims (4)

And a first mounting portion, a second mounting portion provided under the first mounting portion, and a third mounting portion provided behind the first mounting portion, and formed at each of a front end of the first mounting portion and a rear end of the third mounting portion. A housing including a through hole;
A push assembly including a push rod penetrating the through hole, a pressure plate provided at a front end of the push rod, and a push portion provided in the first mounting portion;
A handle assembly installed on the second mounting part and including a handle exposed to the outside of the housing and an operation part coupled to the push part to move the push rod; And
An elastic holder installed at the third mounting part and including a coupling hole through which the rod is coupled;
Silicone gun comprising.
The method according to claim 1,
The elastic holder includes a narrow first body, a wide second body provided in front of the first body, and a screw counterpart provided at a boundary between the first and second bodies and having a shape corresponding to a screw wall part. ,
And the screw counterpart comprises one or more stepped steps to increase in size toward the upper side based on the insertion state of the elastic holder.
The method according to claim 1,
The housing further includes a fourth mounting portion provided in front of the first mounting portion,
The fourth mounting portion is provided with a coupling ring for fixing the connection sleeve is coupled to the silicone receptor coupled to the front of the housing,
Silicon gun, characterized in that the bearing is provided at the coupling portion of the connecting sleeve and the coupling ring.
The method according to claim 1,
Further comprising a mounting means provided on the housing,
The mounting means includes a hook member having a mounting portion, a slide groove provided in the lower portion of the hook member, a stopper provided in the slide groove, and a slide protrusion provided in the upper portion of the housing and inserted into the slide groove,
And the slide protrusion comprises a first inclined portion having a rearward inclined portion and a second inclined portion provided behind the first inclined portion and having a smaller inclination angle than the first inclined portion.

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