Underwater viscoelastic body anti-corrosion adhesive tape with high coverage rate

Abstract

The utility model discloses an underwater viscoelastic body anticorrosion adhesive tape with high coverage rate, which comprises a circular sleeve piece and an adhesive tape body wound on a middle sleeve body of the circular sleeve piece, the adhesive tape body comprises a base film, the bottom surface of the base film is coated with a first flexible adhesive layer, the bottom surface of the first flexible adhesive layer adheres to and presses against a grid elastic layer, and the grid elastic layer is coated with a second flexible adhesive layer. The bottom surface of the grid elastic layer is coated with a second flexible adhesive layer, and anti-sticking release paper is adhered to the bottom surface of the second flexible adhesive layer; the grid elastic layer is additionally arranged in the adhesive tape body, the tensile effect is improved through grid elasticity, meanwhile, the uncovered anti-sticking release paper can be pulled out along the two guide rollers, the probability that the anti-sticking release paper returns to be adhered to the second flexible adhesive layer is greatly reduced, operation and use of operators are facilitated, and the difficulty of the adhesive tape is greatly reduced.

Description

Technical field:

[0001] The utility model relates to the technical field of adhesive tapes, and more specifically to an underwater viscoelastic anti-corrosion adhesive tape with a high coverage rate. Background technology:

[0002] Viscoelastic anti-corrosion tape is a new anti-corrosion product specially designed for buried pipelines and other special equipment that need anti-corrosion, such as flanges, valves, pumps, etc.

[0003] However, its use in water is not ideal. Therefore, Chinese patent application No. 202111165540.1 is an underwater viscoelastic anti-corrosion adhesive and a preparation method thereof, and an underwater viscoelastic anti-corrosion tape, which is made into an underwater viscoelastic anti-corrosion adhesive that can be used underwater. However, the underwater viscoelastic anti-corrosion tape only covers a base film on the top surface of the underwater viscoelastic anti-corrosion adhesive and an anti-adhesion isolation film on the bottom surface, and its tensile effect is limited;

[0004] At the same time, when the existing underwater viscoelastic anti-corrosion tape is used, it needs to be adhered to the pipe body while the anti-sticking isolation film needs to be peeled off. During operation, the anti-sticking isolation film at the end of the tape body is generally peeled off a little, and then it is adhered to the pipe body, and then the reel is held and pulled down. During the pulling-down process, the anti-sticking isolation film needs to be continuously peeled off. Since the peeled part of the anti-sticking isolation film has no guiding structure, there is a great probability that it will return to its original position and re-adhere to the underwater viscoelastic anti-corrosion glue when it is just peeled off, affecting the normal adhesion of the tape. It is necessary to constantly pull it open again by hand, which is very troublesome and inefficient. Utility model content:

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide an underwater viscoelastic anti-corrosion tape with a high coverage rate. A grid elastic layer is added to the tape body, and the grid elasticity improves the tensile effect. At the same time, the peeled anti-adhesive release paper can be pulled out along two guide rollers, greatly reducing the probability of its return and adhesion to the second flexible adhesive layer, making it convenient for operators to operate and use, and greatly reducing the difficulty.

[0006] The solution of the utility model to solve the technical problem is:

[0007] A high-coverage underwater viscoelastic anti-corrosion tape, comprising a circular sleeve and a tape body wound on a central cylinder of the circular sleeve, wherein the tape body comprises a base film, the bottom surface of the base film is coated with a first flexible adhesive layer, the bottom surface of the first flexible adhesive layer is adhered and pressed against a grid elastic layer, the bottom surface of the grid elastic layer is coated with a second flexible adhesive layer, and the bottom surface of the second flexible adhesive layer is adhered to an anti-adhesion release paper;

[0008] The circular sleeve member includes a middle cylinder body, and circular baffles are formed at the front and rear ends of the middle cylinder body. The tape body is wound in the middle cylinder body and is located between the two circular baffles. The central through hole of the middle cylinder body is connected to and aligned with the central through holes of the two circular baffles. The two guide plates are located at the outer sides of the two circular baffles. Two guide rollers are installed between the outer ends of the two guide plates, and the two guide rollers are located on one side of the circular sleeve member.

[0009] A hinge shaft portion is formed on the inner side wall of the inner end of the guide plate on one side, and the hinge shaft portion is inserted into the central through hole of the middle cylinder and the middle through holes of the two circular baffle plates. The end of the hinge shaft portion extends out of the corresponding circular baffle plate on one side and is clamped on the inner side wall of the middle through hole of the inner end of the corresponding guide plate.

[0010] A self-lubricating sleeve is fixed on the outer side wall of the hinge shaft, and the outer side wall of the self-lubricating sleeve is close to the inner side wall of the central through hole, so that the two guide plates can be ensured to rotate along the circular sleeve member.

[0011] The two ends of the middle rotating shafts of the two guide rollers extend out of the two ends of the guide rollers and are inserted into the corresponding insertion holes at the outer ends of the corresponding guide plates.

[0012] The width of the middle part of the side strip of the grid of the grid elastic layer is greater than that of the rest of the side strip, and the width of the corner part of the grid of the grid elastic layer is greater than that of the rest of the side strip.

[0013] The outstanding effects of the utility model are:

[0014] A mesh elastic layer is added to the tape body, and at the same time, the width of the middle part of the mesh side strip of the mesh elastic layer is greater than that of the rest of the side strip, and the width of the corner of the mesh of the mesh elastic layer is greater than that of the rest of the side strip, so that when the mesh elastic layer is stretched, its side strip is not easy to break, thereby improving the tensile effect;

[0015] At the same time, the two guide plates and two guide rollers can pull the peeled anti-sticking release paper along the two guide rollers, greatly reducing the probability of it returning to adhere to the second flexible adhesive layer, making it convenient for operators to operate and use, and greatly reducing the difficulty. Description of the drawings:

[0016] Figure 1 It is a partial cross-sectional view of the anti-adhesive release paper of the utility model when it is peeled off;

[0017] Figure 2 It is a partial side view of the utility model;

[0018] Figure 3 It is a schematic diagram of the local structure between two guide plates of the utility model;

[0019] Figure 4 It is a schematic diagram of the local structure of the grid elastic layer;

[0020] Figure 5 It is a partial cross-sectional view of the tape body. Specific implementation method:

[0021] For example, see Figures 1 to 5 As shown, a high coverage underwater viscoelastic anti-corrosion tape comprises a circular sleeve member 10 and a tape body 20 wound on a central cylinder of the circular sleeve member 10, wherein the tape body 20 comprises a base film 21, the bottom surface of the base film 21 is coated with a first flexible adhesive layer 22, a grid elastic layer 23 is adhered and pressed against the bottom surface of the first flexible adhesive layer 22, a second flexible adhesive layer 24 is coated on the bottom surface of the grid elastic layer 23, and an anti-adhesion release paper 25 is adhered to the bottom surface of the second flexible adhesive layer 24;

[0022] The first flexible adhesive layer 22 and the second flexible adhesive layer 24 in this embodiment are made of the same material as that of an underwater viscoelastic anti-corrosion adhesive and its preparation method, and an underwater viscoelastic anti-corrosion tape disclosed in Chinese patent application number 202111165540.1. The base film 21 is made of PET base film or PE base film with a thickness of less than 0.5 mm, and the anti-sticking release paper 25 is a PET isolation film or a PE isolation film.

[0023] The mesh elastic layer 23 is made of a silicone rubber mesh elastic layer, and the width of the middle of the mesh side strip of the mesh elastic layer 23 is greater than the width of the other parts of the side strip 231, and the width of the corner of the mesh of the mesh elastic layer 23 is greater than the other parts of the side strip 231. This structure further improves the tensile effect of the side strip 231, prevents it from being broken, and thus further improves the tensile effect of the mesh elastic layer 23.

[0024] Furthermore, the circular sleeve member 10 includes a middle cylinder, and circular baffles 11 are formed at the front and rear ends of the middle cylinder. The tape body 20 is wound in the middle cylinder and is located between the two circular baffles 11. The central through hole of the middle cylinder is connected to and aligned with the central through holes of the two circular baffles 11. The two guide plates 30 are located on the outside of the two circular baffles 11. Two guide rollers 40 are installed between the outer ends of the two guide plates 30, and the two guide rollers 40 are located on one side of the circular sleeve member 10.

[0025] Furthermore, a hinge shaft portion 31 is formed on the inner side wall of the inner end of the guide plate 30 on one side, and the hinge shaft portion 31 is inserted into the central through hole of the middle cylinder and the middle through holes of the two circular baffle pieces 11. The end of the hinge shaft portion 31 extends out of the corresponding circular baffle piece 11 on one side and is clamped on the inner side wall of the middle through hole of the inner end of the corresponding guide plate 30.

[0026] Furthermore, a self-lubricating sleeve 32 is fixed on the outer side wall of the hinge shaft portion 31 , and the outer side wall of the self-lubricating sleeve 32 is close to the inner side wall of the central through hole.

[0027] Furthermore, two ends of the middle rotating shafts of the two guide rollers 40 extend out of two ends of the guide rollers 40 and are inserted into corresponding insertion holes at the outer ends of the corresponding guide plates 30 .

[0028] When this structure is used, the peeled anti-adhesive release paper 25 can be pulled outward along between the two guide rollers 40, so that it is not easy to return to the second flexible adhesive layer 24 just peeled off, which is convenient for the adhesion use of this embodiment.

[0029] The above implementation modes are only used to illustrate the present invention, but not to limit the present invention. Ordinary technicians in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the present invention. The scope of patent protection of the present invention should be limited by the claims.

Claims

1. An underwater viscoelastic anti-corrosion tape with a high coverage rate, comprising a circular sleeve member (10) and a tape body (20) wound on a central cylinder of the circular sleeve member (10), characterized in that: The adhesive tape body (20) comprises a base film (21), the bottom surface of the base film (21) is coated with a first flexible adhesive layer (22), the bottom surface of the first flexible adhesive layer (22) is adhered and pressed against a grid elastic layer (23), the bottom surface of the grid elastic layer (23) is coated with a second flexible adhesive layer (24), and the bottom surface of the second flexible adhesive layer (24) is adhered with an anti-adhesive release paper (25); The circular sleeve member (10) comprises a middle cylinder body, and circular baffles (11) are formed at the front and rear ends of the middle cylinder body. The tape body (20) is wound in the middle cylinder body and is located between the two circular baffles (11). The central through hole of the middle cylinder body is connected to and aligned with the central through holes of the two circular baffles (11). The two guide plates (30) are located at the outer sides of the two circular baffles (11). Two guide rollers (40) are installed between the outer ends of the two guide plates (30). The two guide rollers (40) are located on one side of the circular sleeve member (10).

2. The high coverage underwater viscoelastic anti-corrosion tape according to claim 1, characterized in that: A hinge shaft portion (31) is formed on the inner side wall of the inner end of the guide plate (30) on one side, and the hinge shaft portion (31) is inserted into the central through hole of the middle cylinder and the middle through holes of the two circular blocking pieces (11). The end of the hinge shaft portion (31) extends out of the corresponding circular blocking piece (11) on one side and is clamped on the inner side wall of the middle through hole of the inner end of the corresponding guide plate (30).

3. The high coverage underwater viscoelastic anti-corrosion tape according to claim 2, characterized in that: A self-lubricating sleeve (32) is fixed on the outer side wall of the hinge shaft portion (31), and the outer side wall of the self-lubricating sleeve (32) is close to the inner side wall of the central through hole.

4. The high coverage underwater viscoelastic anti-corrosion tape according to claim 1, characterized in that: The two ends of the middle rotating shafts of the two guide rollers (40) extend out of the two ends of the guide rollers (40) and are inserted into corresponding insertion holes at the outer ends of the corresponding guide plates (30).

5. The high coverage underwater viscoelastic anti-corrosion tape according to claim 1, characterized in that: The width of the middle portion of the side strip of the grid of the grid elastic layer (23) is greater than that of the other portions of the side strip (231), and the width of the corner portion of the grid of the grid elastic layer (23) is greater than that of the other portions of the side strip (231).

6. The high coverage underwater viscoelastic anti-corrosion tape according to claim 1, characterized in that: The grid elastic layer (23) is a silicone rubber grid elastic layer.

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