Flashboard front sealing structure of composite structure

Abstract

The utility model discloses a front sealing structure of a flashboard with a composite structure, which comprises a rubber body, a sealing element, a sealing element, a sealing element and a sealing element, and is characterized in that the rubber body is provided with a groove for accommodating sealing grease; a first sizing block and a second sizing block are respectively arranged on the upper surface and the lower surface of the rubber body, an integrated sizing block mechanism is arranged on the rubber body, and a space for injecting sealing grease to seal a cable is arranged in the rubber body, so that the functions of grease injection and sealing in one pair of flashboards can be realized; compared with a traditional cable blowout preventer sealing device, the cable blowout preventer sealing device has the advantages that the size and the weight of a blowout preventer are greatly simplified, the labor intensity of field operation is reduced, and the safety is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to is equipped technical field, especially relate to a composite structure's front sealing structure of gate. BACKGROUND

[0002] In cable logging and perforating operation, the blowout preventer is used for being installed on the upper portion of the Christmas tree, and is used for sealing the wellhead with the cable when the cable is stuck, the cable is broken, etc. UTILITY MODEL CONTENTS

[0003] In view of the above-mentioned defects or deficiencies, the utility model aims at providing a composite structure's front sealing structure of gate.

[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:

[0005] A composite structure's front sealing structure of gate, comprising: a rubber body, the rubber body is set up with the recess for accommodating the sealing grease, the upper and lower surfaces of the rubber body are provided with first, second iron pad respectively.

[0006] The recess is provided with third, fourth iron pad on both sides.

[0007] The center of the rubber body is provided with semicircular through hole for passing through the cable.

[0008] The first, second iron pad is provided with mounting hole.

[0009] The recess center is provided with grease injection hole horizontally.

[0010] The first, second iron pad and the rubber body are vulcanized into an integral structure.

[0011] The third, fourth iron pad and the rubber body are vulcanized into an integral structure.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] This utility model provides a composite gate front sealing structure. Because an integrated pad mechanism is set on the rubber body, and a space for injecting sealing grease to seal the cable is set in the rubber body, the functions of grease injection and sealing can be completed in one gate. The function that originally required two gates is integrated into one gate. Compared with the traditional cable blowout preventer sealing device, it greatly simplifies the size and weight of the blowout preventer, reduces the labor intensity of on-site operations, and improves safety. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the gate front sealing structure of the composite structure of this utility model. Figure One ;

[0015] Figure 2 This is a schematic diagram of the gate front sealing structure of the composite structure of this utility model. Figure Two .

[0016] In the diagram, 1—rubber body; 2—first shim; 3—second shim; 4—third shim; 5—fourth shim; 6—groove; 7—semi-circular through hole; 8—mounting hole; 9—grease injection hole. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0018] like Figure 1 , 2 As shown, this utility model provides a composite gate front sealing structure, which is installed at the front end of the blowout preventer gate body and is used to inject sealing grease to achieve complete sealing of the cable. The specific structure includes: a rubber body 1, on which a groove 6 for accommodating sealing grease is formed; first and second shims 2 and 3 are respectively provided on the upper and lower surfaces of the rubber body 1; and third and fourth shims 4 and 5 are provided on both sides of the groove 6.

[0019] To allow the cable to pass through, a semi-circular through hole 7 is provided in the center of the rubber body 1 for the cable to pass through. When the two blowout preventer gates are closed, the semi-circular through holes 7 of the rubber body 1 cooperate with each other to form a complete through hole space for the cable to pass through after being sealed with sealant.

[0020] In addition, in this utility model, the first and second pads 2 and 3 are provided with mounting holes 8 for installing and fixing the entire front sealing structure of the gate, and can be fixedly installed on the blowout preventer gate through the mounting holes 8.

[0021] Preferably, the recess 6 center is horizontally provided with a grease injection hole 9, which can inject sealing grease through the grease injection hole 9 to realize the function of completely sealing the cable.

[0022] Further, the first and second iron pads 2 and 3 and the rubber body 1 are vulcanized into an integrated structure; the third and fourth iron pads 4 and 5 and the rubber body 1 are vulcanized into an integrated structure, which can support the rubber body when high pressure is applied, ensuring the safety and reliability of the sealing. Among them, the third iron pad 4 and the fourth iron pad 5 have an independent space in the middle for injecting sealing grease to seal the cable, and the two iron pads play a supporting pressure role; the first iron pad 2 and the second iron pad 3 are used for supporting the entire front sealing when under pressure, ensuring the strength.

[0023] The utility model discloses a kind of front sealing structures of gate plate of composite structure, which is mainly used in cable sealing wellhead, for handling cable accident such as cable sticking, wire jumping;Since logging cable is armored structure, the front sealing of the gate plate of blowout preventer is rubber piece, after closing the gate plate, rubber clamps cable and cannot realize completely sealing cable, so traditional cable blowout preventer is at least double gate plate, after closing the gate plate, high viscosity sealing grease is injected between 2 gate plates to realize completely sealing wellhead;Therefore, traditional cable blowout preventer has the shortcomings of heavy weight, complex structure and supporting operation process cumbersome etc.But the utility model can realize grease injection sealing in a gate plate, integrate the function that 2 gate plates realize originally on a gate plate, greatly simplify the size, weight of blowout preventer, reduce the labor intensity of field operation, and improve safety.

[0024] For those skilled in the art, it is obvious that the above specific examples are only preferred embodiments of the utility model, therefore, the improvements and changes that the skilled in the art can make to some parts of the utility model still embody the principles of the utility model, realize the purposes of the utility model, and all belong to the scope protected by the utility model.

Claims

1. A composite gate front sealing structure, characterized in that, include: A rubber body (1) is provided with a groove (6) for accommodating sealing grease; the upper and lower surfaces of the rubber body (1) are respectively provided with first and second pads (2, 3).

2. The composite gate front sealing structure according to claim 1, characterized in that, The groove (6) is provided with third and fourth pads (4, 5) on both sides.

3. The gate front sealing structure of the composite structure according to claim 1 or 2, characterized in that, The rubber body (1) has a semi-circular through hole (7) at its center for the cable to pass through.

4. The gate front sealing structure of the composite structure according to claim 1 or 2, characterized in that, The first and second pads (2, 3) are provided with mounting holes (8).

5. The gate front sealing structure of the composite structure according to claim 1 or 2, characterized in that, A grease injection hole (9) is horizontally opened at the center of the groove (6).

6. The gate front sealing structure of the composite structure according to claim 1, characterized in that, The first and second pads (2, 3) and the rubber body (1) are vulcanized into a single structure.

7. The gate front sealing structure of the composite structure according to claim 2, characterized in that, The third and fourth pads (4, 5) and the rubber body (1) are vulcanized into a single structure.

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