CN210282080U - Explosion-proof spanner that can strike - Google Patents

Abstract

The utility model relates to an explosion-proof spanner that can strike, including interior square sleeve and handle, the rear portion of handle still is equipped with the containment spring and strikes the platform, is equipped with explosion-proof alloy piece at this outer terminal surface that strikes the platform. The utility model discloses designed at the handle rear portion and drawn the spring and knocked the platform to explosion-proof alloy piece has been installed in knocking the platform, can not produce the spark when using ordinary sledgehammer to knock, make this spanner can cooperate and use ordinary sledgehammer construction. The explosion-proof requirement is met under the condition of hammering by using a common material hammer, and one person can construct independently. The operation is facilitated, the number of operators is reduced, the operation safety is guaranteed, meanwhile, the explosion-proof alloy block is easy and convenient to replace, the explosion-proof hammer is replaced relatively to the explosion-proof alloy block, the production cost can be reduced, and the using effect is good.

Description

Explosion-proof spanner that can strike

Technical Field

The utility model relates to an explosion-proof spanner, especially an explosion-proof spanner that can strike can install and dismantle the well head bolt in the narrow and small space of oil well head.

Background

The safety requirement level of construction in the offshore oil platform is high, an explosion-proof sledgehammer is required to be used for hammering a bolt wrench to be locked when the wellhead bolt is disassembled and assembled in a wellhead limited space, 2 persons are required for matching construction in the traditional method operation, the labor intensity is high, and the construction efficiency is low. In addition, the explosion-proof sledgehammer is made of soft materials, so that the knocking loss is fast, the service life is short, and the production cost is increased.

At present, the existing explosion-proof wrenches are more in types, but bolts in a petroleum industry wellhead device, particularly wellhead bolts in an offshore petroleum platform are seriously corroded with nuts due to the reasons of large air humidity, high salt content and the like, are difficult to disassemble, and are not suitable for disassembling and assembling the bolts of the petroleum industry wellhead. Such as:

an extensible explosion-proof wrench, patent number: CN201520929136 the utility model discloses an explosion-proof spanner can prolong, mainly used switch valve operation, extension pull rod increase moment can not adopt the sledgehammer to carry out the jarring. An extensible explosion-proof wrench, patent number: CN201520929136 is structured to include two wrench bodies: the steel nail shaft is connected with the first wrench main body and the second wrench main body in a matched manner; wherein one end of the wrench body is provided with a trepan boring, and the other end of the wrench body is provided with a steel bar provided with male threads; a male thread matched and fixed with the trepanning is arranged above the steel nail shaft, and a female thread matched and fixed with the steel bar is arranged below the steel nail shaft; the first wrench main body is detachably connected to the second wrench main body through the steel nail shaft. The bolt is telescopic, the size of the main body is reduced, the torque is reduced, the physical force of an operator is saved by increasing the torque, and when the bolt is corroded and seriously stretched to the maximum size, the bolt cannot be loosened by means of the manual force. The operation is difficult when the space of the wellhead is small;

patent number of multifunctional explosion-proof wrench: CN201520376357 structure corresponds respectively from top to bottom for the spanner body is inside to be provided with first slider and second slider, is provided with adjusting nut between first slider and the second slider, and spanner body below is provided with the hexagonal hole, and first slider lower extreme correspondence sets up to V type structure, and spanner body top is inside to be V type structure, and second slider upper end correspondence sets up to V type structure. The novel anti-explosion wrench has light weight and small size, can replace various anti-explosion wrenches in the using process, can be applied to screwing and unscrewing of different types of bolts or nuts of triangles, four corners, hexagons, octagons and dodecagons, can be suitable for assembling and disassembling operations of bolts or nuts of different specifications and models, and can replace the functions of part of double offset ring wrenches, open solid spanners, adjustable spanners and pipe tongs. Knocking the wrench to disassemble the rusted wellhead bolt, and the structural strength of the rusted wellhead bolt cannot meet the requirement.

An explosion-proof solid plum replaceable bayonet socket dual-purpose wrench has the patent number: the CN201310041716 structure is made of aluminum bronze or beryllium bronze, and the quantity of tools in operation is effectively reduced by using bayonets of different sizes of a plurality of U-shaped plug connectors and bayonets of different sizes of a plurality of embedded kits. The specification and the size of the wellhead bolt are single, and the tool loss amount is large and the economic benefit is low when the device is used for disassembling the rusted wellhead bolt due to the fact that the manufacturing material of the wellhead bolt is soft;

a novel explosion-proof spanner patent number: the structure of CN201020223328 is a wrench handle, a wrench arm and a wrench clamping support, wherein one end of the wrench arm is connected with the wrench handle, the other end of the wrench arm is provided with a front wrench clamping support and a rear wrench clamping support along one side surface of the wrench arm in the length direction, the wrench clamping supports are provided with anti-skidding spaces for preventing valves from being separated, and the anti-skidding spaces are enclosed by the side surfaces of the wrench arm and the wrench clamping supports arranged on the wrench arm; the utility model discloses skid resistance can be high with the safety in utilization, simultaneously, has avoided the emergence that valve handle and wrench arm bumped the condition mutually in the use, and the device application range is switching valve, can't jar and dismantle corrosion well head bolt.

Disclosure of Invention

The utility model aims at providing an explosion-proof spanner that can strike makes it can be arranged in oil industry's construction operation, makes things convenient for well head bolt and other dismantlements and the installation that have the part of pulling the side, guarantees production safety, improves the efficiency of construction.

The technical solution of the utility model is that:

the utility model provides an explosion-proof spanner that can strike, includes interior square sleeve and handle, and the rear portion of handle still is equipped with the containment spring and strikes the platform, is equipped with explosion-proof alloy piece at the outer terminal surface that should strike the platform.

The outer end face of the knocking table is connected with the explosion-proof alloy block through a key groove, and screw holes are formed in the bodies of the knocking table and the explosion-proof alloy block, and fixing screws are arranged in the screw holes.

The containment spring is installed in the handle body at the back of the knocking platform.

One end of the drag spring is fixed in the body of the handle, the spring hook at the other end can be hooked on the disassembled bolt, after the spring hook is hooked on the disassembled bolt, the included angle between the drag spring and the handle is smaller than 90 degrees.

The width of the hook opening of the traction spring hook is smaller than the outer diameter of the disassembled bolt.

The total length of the knockable wrench is set between 25cm and 40 cm.

And more than three wrenches are arranged in the inner square sleeve.

Compare with current explosion-proof spanner, the beneficial effects of the utility model are that: the utility model discloses designed at the handle rear portion and drawn the spring and knocked the platform to explosion-proof alloy piece has been installed in knocking the platform, can not produce the spark when using ordinary sledgehammer to knock, make this spanner can cooperate and use ordinary sledgehammer construction. The dynamics of knocking of sledgehammer can make the light dismantlement of well head bolt and nut that uses, rusted for a long time in the field, simultaneously, the utility model discloses a rear portion still is equipped with and leads the system spring, and the spring hook that leads the system spring can block on the bolt that is dismantled, can guarantee the utility model discloses do not kick-back and fall to the ground, just can operate alone and accomplish the work task of dismantling well head bolt and nut and other have spanner side parts. The explosion-proof requirement is met under the condition of hammering by using a common material hammer, and one person can construct independently. The operation is facilitated, the number of operators is reduced, the operation safety is guaranteed, meanwhile, the explosion-proof alloy block is easy and convenient to replace, the explosion-proof hammer is replaced relatively to the explosion-proof alloy block, the production cost can be reduced, and the using effect is good.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The following detailed description of the present invention, taken in conjunction with the accompanying drawings, is not intended to limit the scope of the invention. It is only following do the preferred embodiment of the utility model, other applications the utility model discloses an equivalent change all should belong to the utility model discloses a protection scope.

Referring to fig. 1, the explosion-proof knockable wrench comprises an inner square sleeve 1 and a handle 2, wherein a restraining spring 3 and a knocking table 4 are further arranged at the rear part of the handle 2, and an explosion-proof alloy block 6 is arranged on the outer end face of the knocking table 4.

The outer end face of the knocking table 4 is connected with the explosion-proof alloy block 6 through a key groove, screw holes are formed in the bodies of the knocking table 4 and the explosion-proof alloy block 6, and fixing screws 5 are arranged in the screw holes. The knocking platform 4 and the explosion-proof alloy block 6 are connected and fixed through the fixing screws 5, so that the explosion-proof alloy block 6 can be conveniently replaced, the knocking platform 4 and the explosion-proof alloy block 6 can be connected and fixed through welding, and the explosion-proof alloy block 6 is inconvenient to replace in a connecting and fixing mode and is not beneficial to reducing the cost.

The restraining spring 3 is arranged in the handle 2 body at the back of the knocking platform 4.

One end of the drag spring 3 is fixed in the body of the handle 2, the spring hook at the other end can be hooked on the disassembled bolt, and after the spring hook is hooked on the disassembled bolt, the included angle between the drag spring 3 and the handle 2 is smaller than 90 degrees. The spanner can be prevented from being rebounded and fallen to the ground in the use process of the spanner, and is particularly used in the nut dismounting process with small distance between the nut and the top of the bolt.

The hook opening width of the spring hook of the drag spring 3 is smaller than the outer diameter of the disassembled bolt.

The total length of the knockable wrench is set between 25cm and 40 cm.

The number of the wrenches in the inner square sleeve 1 is more than three.

The use method is described below by taking the example of disassembling the bolt and the nut of the wellhead:

during the use, with interior square sleeve 1 cover on the nut of well head bolt, will hold back the spring hook card of spring 3 outside the bolt body of rod above well head bolt nut, utilize ordinary sledgehammer to strike explosion-proof alloy piece 6, dismantle well head bolt nut.

The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Many variations, combinations, and modifications of the aspects disclosed herein are possible and are within the scope of the invention, which is, therefore, not to be limited by the above description.

Claims (7)

1. The utility model provides an explosion-proof spanner that can strike, includes interior square sleeve and handle, characterized by, the rear portion of handle still is equipped with the containment spring and strikes the platform, is equipped with explosion-proof alloy piece at the outer terminal surface that should strike the platform.

2. The explosion-proof knockable wrench as claimed in claim 1, wherein the outer end face of the knocking table is connected to the explosion-proof alloy block through a key groove, and screw holes are formed in the knocking table and the body of the explosion-proof alloy block, and fixing screws are installed in the screw holes.

3. An explosion proof rappable wrench as claimed in claim 2 in which said hold down spring is mounted in the handle body at the back of the striking platform.

4. An explosion-proof knockable wrench as claimed in claim 1 or 3, wherein said drag spring is fixed at one end in the handle body and at the other end a spring hook is hooked on the removed bolt, and after the spring hook is hooked on the removed bolt, the angle between the drag spring and the handle is less than 90 °.

5. An explosion proof rappable wrench as claimed in claim 4, wherein said check spring hook has a hook opening width which is less than the outer diameter of the bolt to be removed.

6. An explosion proof rappable wrench according to claim 5, wherein the total length of said rappable wrench is set between 25cm and 40 cm.

7. An explosion proof knockable wrench as in claim 6, wherein there are more than three wrenches in said inner square socket.

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